Good morning, and welcome to Medtronic's fiscal year 2021 fourth quarter earnings video webcast. I'm Ryan Weispfenning, Vice President and Head of Medtronic Investor Relations. Before we start the prepared remarks, I'm going to share with you a few details to keep in mind about today's webcast. Joining me today are Geoff Martha, Medtronic Chairman and Chief Executive Officer, and Karen Parkhill, Medtronic Chief Financial Officer. Geoff and Karen will provide comments on the results of our fourth quarter and fiscal year 2021, which ended on April 30th, 2021. After our prepared remarks, we'll take questions from the sell-side analysts that cover the company, and today's event should last about an hour. Earlier this morning, we issued a press release containing our financial statements and divisional and geographic revenue summaries. We also posted an earnings presentation that provides additional details on our performance.
The presentation can be accessed from the link in our earnings press release or on our website at investorrelations.medtronic.com. As we mentioned last quarter, the fourth quarter marks the first time that we're using the new nomenclature and reporting structure of our new operating model. For more information on these changes, please see the relevant slides in our earnings presentation. During today's webcast, many of the statements we make may be considered forward-looking statements, and actual results may differ materially from those projected in any forward-looking statement. Additional information concerning factors that could cause actual results to differ is contained in our periodic reports and other filings that we make with the SEC, and we do not undertake to update any forward-looking statement. Unless we say otherwise, all comparisons are on a year-over-year basis, and revenue comparisons are made on an organic basis.
Fourth quarter organic revenue comparisons adjust only for foreign currency, as there were no acquisitions or divestitures made in the last four quarters that had a significant impact on total company or individual segment quarterly revenue growth. Full fiscal year organic revenue comparisons exclude the impact of foreign currency, the benefit in the first 12 months of our Titan Spine acquisition, and the benefit of the extra week in our first quarter. References to sequential improvement compare to the third quarter of fiscal 2021 and are made on an as reported basis. All references to share gains or losses are on a revenue and calendar quarter basis, unless otherwise stated. Reconciliations of all non-GAAP financial measures can be found in the attachment to our earnings press release or on our website at investorrelations.medtronic.com.
Finally, our EPS guidance does not include any charges or gains that would be reported as non-GAAP adjustments to earnings during the fiscal year. With that, let's get started.
Hello, everyone, and thank you for joining us today. We reported a strong quarter this morning. The expectations that we set for Q4 on the last earnings call were seen by many in the financial community as aggressive. Yet we executed and we delivered, beating Street estimates on revenue, margins, and EPS. Most of our end markets are returning to near normal pre-COVID growth. While some geographies are lagging due to COVID's persistence, momentum built throughout the quarter, and we feel confident about the year ahead. Karen will give you more color on our guidance later in this call, but the key takeaway is that we're guiding above Street estimates on the top line while simultaneously accelerating our investments at the front end of major product launches in surgical robotics and remote innovation.
Now, in robotics and remote innovation, we're investing in our marketing, customer service, and support capabilities to maximize these product launches. We're also investing in R&D broadly with meaningful programs across the company. As we talked about at our Investor Day last year, we have a packed pipeline across our businesses with a number of meaningful opportunities, and our top priority is to invest in our business and pipeline to take advantage of those opportunities. We plan on increasing our R&D spend by more than 10% in FY 2022, the biggest dollar increase in R&D spend in our company's history, all while delivering strong EPS growth. We're ultra-focused on accelerating our top-line growth. We're making incremental investments to put us in a place to drive a sustainable higher level of growth than you have historically come to expect from Medtronic.
Before I get into some details on the fourth quarter, I'd like to reflect on the past year, my first as CEO. It's certainly been a difficult environment with the pandemic. Our organization has risen to the challenge and achieved so much in such a short period of time and under unique circumstances. Now, it's become cliché for companies to say that they're expecting to emerge from the pandemic stronger, as I've heard this phrase echoed from many of our competitors. You've been hearing this from us from day one, and I think you'll find it hard to name another company in our space that has done more to emerge from this pandemic stronger than Medtronic.
Whether it was investing in our employees, helping our customers and patients, sustaining our R&D programs, or changing our operating model and putting in place a new Medtronic Mindset culture, this past year was transformational for us. In fiscal 2021, customers eliminated the vast majority of their quarter-end bulk purchases, resulting in a more balanced order flow across the quarter. This has improved our predictability and our pricing, made our business easier to manage, and reduced stress on our operations. This past fiscal year, we also accelerated our tuck-in acquisitions, adding key technologies like AI-driven spine planning tools from Medicrea and market-leading smart pen technology from Companion Medical, among others. We also advanced our organic pipeline with more than 230 regulatory approvals in the U.S., Europe, Japan, and China in FY 2021.
FY 2021 was also the year that we stepped up and helped our customers and communities during the pandemic. As a leading manufacturer of high-acuity ventilators, we significantly increased our production and open-sourced our IP to allow others to produce our ventilators around the world. We continue to support communities in need, most recently as a key member of the Global Task Force on Pandemic Response, which was organized by the U.S. Chamber of Commerce and supported by the Business Roundtable. With the help of other task force members, we're working to supply 1,000 ventilators to India. Medtronic and the Medtronic Foundation also just announced an additional $3 million for COVID relief efforts in underserved areas of India, Brazil, and the U.S., and other regions, which brings our combined support of COVID-19 efforts to $56 million.
In FY21, we announced our goal of becoming carbon neutral in our operations by the end of the decade. We've set aggressive targets to reduce our environmental footprint as we focus on creating a sustainable future for our business, our communities, and our planet. We've always had a strong mission to guide this company, which includes integrating a strong corporate purpose into our strategy and maintaining good citizenship. This year, we've enhanced our corporate culture to emphasize our commitment to being bold, more competitive, and moving with greater speed and decisiveness, which we believe will help drive the execution of our mission. We're also focused on becoming a more diverse and inclusive organization, and I was very proud that Medtronic was recognized earlier this month as number 11 on DiversityInc's Top 50 U.S. Companies for Diversity, one of the biggest jumps by any company.
We know we have room to improve, and we're striving to be a company that attracts, develops, and retains top talent from all gender and ethnic backgrounds. To sum up FY21, it was a year marked by progress and accomplishments that will propel us into FY22 with a stronger foundation for growth and a greater ability to execute, deliver, and exceed our own expectations. We have momentum, energy, and a pipeline that gives our team optimism about what we can accomplish this year. Now let's turn to the fourth quarter results and start with a look at market share, as we've been doing the last few earnings calls. We continue to gain share in an increasing number of our businesses, driven by our differentiated product offerings. We've put in place operating mechanisms to ensure that we continue to drive this competitive culture across the organization.
Market share is one of the key metrics that we will hold our teams accountable to deliver in evaluating performance. In FY22, it will be included as a metric in our annual incentive compensation. While the impact of COVID on procedures, along with the timing of our quarter, does mask some of the underlying market dynamics, we are seeing a growing trend of share gains for Medtronic. Leading the list for share gains this quarter is one of our largest businesses, cardiac rhythm management, which has gained share over the past several quarters. We estimate that our CRM business has gained two to three points year-over-year, and CRM is now at the highest share level in more than a decade, with strong gains from around the globe. These gains have been driven by Micra, our leadless pacemaker, which grew 74% in Q4 and is now annualizing at nearly $400 million.
Micra is a great example of the innovation and disruption that we're driving at Medtronic. It's not just Micra generating our share gains. Our Cobalt and Crome high-power devices are also contributing, driving our CRT-D product line to 74% growth in Q4. In TAVR, our share was up over a point year-over-year and was stable sequentially. We reached an all-time record of U.S. TAVR implants in the quarter. Late last month, we announced interim results of our Optimize PRO study, which showed that our new implant technique is resulting in single-digit pacemaker rates. Last week at EuroPCR, we announced very strong low-risk data, which showed that the advantages of our Evolut TAVR system are maintained over surgical valves at two years post-procedure.
Importantly, our data showed no convergence of the TAVR and SAVR curves for death or disabling stroke, as well as continued low valve thrombosis rates out to year two. This stands in contrast to our competition's PARTNER 3 data. We'll leverage this data with implanting physicians as we continue to go on the offensive and win share in this important growth market. In our gastrointestinal business, we estimate that we gained share both year-over-year and sequentially. Our GI diagnostic product lines grew in the low 50%, driven by high 60% growth of our PillCam. Last month, we received FDA clearance for our GI Genius module, which uses artificial intelligence to assist physicians in detecting both precancerous and cancerous growths during colonoscopies.
GI Genius can highlight lesions real-time and identify polyps that might otherwise go undetected by the human eye, improving the quality of colonoscopies. In our cranial and spinal technologies business, we estimate that we gained share in both spine and neurosurgery, both year-over-year and sequentially. Our strategy of bringing a digital ecosystem of enabling technology to spine procedures is working. We have record sales of our StealthStation navigation systems, O-arm imaging systems, Midas Rex capital, and advanced energy products. We estimate that our Mazor robotic system continues to outpace our closest competitor. In ENT, we estimate that our share is up over a point year-over-year. The ongoing launches of our NIM Vital Nerve Monitoring System and StealthStation FlexENT navigation system, coupled with share gains in disposable sinus blades, are driving our above-market performance.
In Pelvic Health, share gain continued with the momentum created by the launch of InterStim Micro and the SureScan leads. Our sales growth outpaced tax audits in the calendar first quarter. We did this despite having a far larger sales base. While the European sacral neuromodulation market remains sluggish due to COVID resurgence, the U.S. market continues to accelerate. Turning to neuromodulation, we estimate that we have gained about a point of pain stim share year-over-year and even more sequentially. Our SCS product line grew 73% in Q4. We continued to outpace the competition in the calendar first quarter. The market continues to show strong enthusiasm for our DTM SCS therapy, which now carries a superiority label from the FDA. Our strategy of going after competitive account conversions is yielding great results.
Our DTM trial adoption remained robust and grew sequentially, a good leading indicator for future growth in our pain stim business. In brain modulation, while we estimate we lost a couple of points of share year-over-year, we continue to gain sequential share on the back of the Percept PC launch. Percept has resulted in 10 points of new implant share gains in the U.S. since its launch last summer. There are a number of businesses where we're gaining share, but there are still some businesses where we've got some work to do. In cardiac diagnostics, as we discussed last quarter, we continued to be supply constrained with our new LINQ II system in Q4 as we ramp our unique wafer scale manufacturing. We estimate we lost about a point sequentially and mid-single digit share points year-over-year, primarily to Boston Scientific.
We're working through the supply ramp-up and expect to have improved supply in the back half of the fiscal year. In addition, we implemented a product ship hold on the LINQ II last week as we analyze an issue. In the meantime, customers are continuing to use our Reveal LINQ. Once we resolve the issue, we're confident that the proven market leadership of Reveal LINQ and the competitive differentiation of LINQ II will allow us to continue to win in this space. In our aortic business, we announced the voluntary recall of our Valiant Navion Thoracic Stent Graft System in February. We also announced that we would be working to ramp production of our previous generation product, the Valiant Captivia, but that we would not be at full production until September.
The loss of Navion had a $35 million impact to revenue in Q4 and resulted in us losing high teen share in the thoracic stent graft market. That said, our customers have expressed strong interest in using the Valiant Captivia product when inventory is available. Looking ahead, we're estimating that the quarterly revenue impact will decrease as we go through FY 2022 from $30 million in Q1 to $15 million in Q4. In neurovascular, we estimate we lost a couple of points of share year-over-year, driven primarily by new competitive flow diverters from Stryker and Terumo. That said, we saw our share stabilize sequentially as we launched our Solitaire X 3 mm stent retriever in the U.S. and started the limited launch of our Pipeline Vantage flow diverter in certain CE mark countries. We expect our new products to drive sequential share gains going forward.
In diabetes, we continue to execute on our turnaround strategy, growing 9% this quarter. This is still below market, and we estimate we lost about five points of share year-over-year. However, our share was stable sequentially. Our new MiniMed 770G and 780G insulin pumps are giving us momentum, resulting in very strong double-digit global insulin pump growth. Next, let's turn to our pipeline. We're launching a number of products across the company and even more are coming. We expect our robust pipeline to be the key driver of accelerating our top-line growth as we're at the front of some large opportunities to win share, create new markets, and disrupt existing markets. As I noted earlier, we're continuing to fuel R&D investments such that our pipeline can be a continuous source of sustained revenue growth over the coming years. Starting with cardiovascular, one of our largest future drivers is renal denervation.
As we develop our solution to go after the multi-billion-dollar addressable market in hypertension. We're expecting to present our ON MED pivotal trial results later this year, likely at the TCT conference in November, these results are likely to be one of the most highly anticipated events in med tech this year. In Cardiac Rhythm Management , we're planning to file for CE mark for our disruptive extravascular ICD technology this quarter. Let me repeat that. I said this quarter. In our Cardiac Ablation Solutions business, we're expecting a first-line therapy indication for our Arctic Front Cryoballoon in the U.S. this coming quarter. We also continue to make good progress on bringing our disruptive pulsed field ablation system to market with strong enrollment in our PULSED AF pivotal trial.
In Structural Heart, we received FDA approval in Q4 for our Harmony Transcatheter Pulmonary Valve, the first of its kind and a breakthrough treatment for patients with congenital heart disease. In TAVR, we received low-risk Shonin approval in Japan and are expecting reimbursement approval later this fiscal year. We also expect the U.S. rollout of our next-generation TAVR valve, the Evolut FX, later this calendar year, which will feature enhanced deliverability and ease of use. Turning to our medical surgical portfolio, another very important program is our Hugo robotic-assisted surgery platform. At the end of March, we reported that we'd submitted Hugo for CE mark and U.S. IDE approval. Well, today I'm happy to report that the FDA has granted the IDE approval, and we're preparing to commence our EXPAND-URO trial in the U.S. to study Hugo in urologic procedures.
We also had our first revenue from Hugo placements at hospitals outside the U.S. in Q4. These systems will collect clinical data to support regulatory approvals in the U.S. and around the world. As you think about modeling the revenue from our surgical robotics business, we're expecting $50 million-$100 million in FY 2022, and that's likely to roughly double or triple in FY 2023. We expect soft tissue robotics to be a meaningful growth driver going forward, not just for MedSurg, but for overall Medtronic. In our Neuroscience Portfolio, we have some exciting near-term milestones coming in our neuromodulation business. We're expecting to launch our Vanta recharge-free spinal cord stimulator in the first half of this fiscal year. This is a big opportunity for us to gain additional share in pain stim, given our low share in the recharge-free portion of the market.
We're also on track to submit our ECAPS device to the FDA later this calendar year, which has the potential to be a disruptive technology in the spinal cord stim space. In BrainMod, we're expecting FDA approval for our SenSight directional lead later this calendar year. This will close a key competitive gap and further differentiate our Percept PC system, which I mentioned earlier was already taking a lot of share in DBS. In Pelvic Health, we received IDE approval last month to start our TITAN 1 feasibility study. This trial will evaluate our implantable tibial system, a device that we think could substantially increase our ability to serve overactive bladder patients, many of whom do not seek therapy or remain on current therapy.
In Neurovascular, in addition to the Solitaire X 3 mm stent retriever and Pipeline Vantage flow diverter that I mentioned earlier, we're rolling out five additional products this calendar year. This includes meaningful innovation for the stroke market, like our Pipeline Shield flow diverter in the U.S. and Rist Radial Access System. In diabetes, we recently received CE mark approval for our Zeus CGM sensor, which we'll be marketing as the Guardian 4 sensor. The no-calibration data that was used to support the CE mark approval will be presented next week at the virtual ATTD conference, and the abstract is available on the ATTD website. We're pleased with the accuracy of Guardian 4 and that it has now been labeled for dosing without finger sticks.
Starting this fall, Europeans will not only have access to the 780G with the highest reported Time- in-R ange of any insulin pump, but also our Guardian 4 sensor with no finger sticks required and our extended infusion set with an industry-leading seven-day wear. We think this is a highly differentiated product offering and one that we can't wait to bring to other markets. In the U.S., the 780G and Guardian 4 sensor are under active review with the FDA. Finally, we're making progress on our Synergy sensor, which is disposable, easier to apply, and half the size of our current sensor. We intend to submit the sensor to the FDA in the first half of the fiscal year once we complete our manufacturing module. I'll now turn it over to Karen to discuss our financial performance and guidance. Karen?
Thank you, Geoff. Our fourth quarter organic revenue increased 32%, and adjusted EPS increased 159%, significant growth as we anniversary the downturn we experienced at the start of the pandemic last year. Our end markets continue to recover from the impact of COVID, and we continue to execute on our strategy and launch new products, resulting in a sequential revenue increase of 5% and sequential adjusted EPS growth of 16%. Our adjusted EPS was $0.08 better than consensus. With $0.02 on higher operating profit and $0.06 from a lower than estimated tax rate. Our recovery from the COVID resurgence in December and January improved throughout the quarter, as expected. March was stronger than February, and April was stronger than March.
We were particularly pleased with the strength of the last several weeks of the quarter, which we believe sets us up nicely for the start of our new fiscal year. From a geographic standpoint, we had strong 47% growth in the United States. Outside of the U.S., our developed markets grew 11%, with continued pockets of COVID resurgence in parts of Western Europe, Japan, and Canada. Our emerging markets grew 41%, driven by China growth in the low 90s. Our adjusted margins continued to improve sequentially, with 120 basis points on our gross margin and 190 basis points on our operating margin. Our adjusted nominal tax rate was 9.6%, better than initially estimated, given a favorable jurisdictional mix of profits along with certain one-time benefits.
We've said throughout this past year that the actions we're taking during the pandemic to not only support our employees and our customers, but also continue investing, would impact our free cash flow. We're pleased that we generated $4.9 billion of free cash flow, converting 81% of our non-GAAP earnings into cash, just above our long-term conversion target of 80%. During the quarter, we repaid in full a JPY 300 billion term loan that was issued earlier in the fiscal year, and our year-end cash position remains above $10.5 billion. You can be assured that despite the pandemic, Medtronic continues to be in a strong financial position to drive our long-term strategies. Reflecting the confidence that we and our board have in the future growth of this company, this morning we announced that we are increasing our dividend by 9%.
We are an S&P dividend aristocrat, having increased our dividend now for 44 years. The dividend is an important part of the total return we generate for our shareholders. We also restarted our share repurchase program in the fourth quarter with a focus on covering dilution from our stock-based compensation. Turning to our guidance. We're confident in the continuing procedure recovery around the globe and the resilience of our end markets. As a result, today reinstate giving formal guidance. We expect strong organic revenue growth acceleration in FY 2022 to 9% ±, a point above current Street consensus. While the impact of currency is fluid, if recent exchange rates hold, foreign currency would have a positive impact on full-year revenue of $400 million-$500 million.
By segment, we expect Cardiovascular and Neuroscience to grow 10%-11%, MedSurg to grow 6%-7%, and Diabetes to grow 3%-4%, all on an organic basis. You'll remember that last year we had an extra week in our fiscal calendar, and these growth rates have not been adjusted for that extra week, given the offset that we had from customer bulk purchases. As a result, we do not intend to adjust our organic growth in fiscal 2022 for the extra week in fiscal 2021. In the first quarter, we're comfortable with Street consensus on revenue, which implies organic growth of 17%-18% and a currency tailwind between $200 million and $250 million at recent rates. By segment, we expect Cardiovascular to grow 14%-15%, MedSurg to grow 18%-19%, Neuroscience to grow 25%-26%, and Diabetes to be flat.
With so many big opportunities in front of us, we're prioritizing R&D and commercial investments with growth above and beyond what you would see in a normal year. We're allocating this capital across our businesses to our best opportunities. As you know, two of our largest opportunities are surgical robotics and renal denervation. We're purposely making significant investments in them to ensure we fully capitalize on the multi-billion-dollar opportunities ahead. Just to give you a sense, when you combine the facts that it's early in the revenue cycle of these two programs with our heavy investment, we are planning for an operating loss of approximately $400 million next fiscal year from these combined programs. It is important to note that even with these kind of investments, we're still expecting operating margin expansion.
This is the power of Medtronic's business model, that we can simultaneously make large-scale investments in some of the most important future technology areas in med tech, cover the dilution, and deliver strong profitability and returns for our shareholders. On the bottom line, we expect non-GAAP diluted EPS in the range of $5.60-$5.75 in fiscal 2022, which includes a benefit of $0.10-$0.15 from currency at recent rates. For the first quarter, we expect EPS of $1.31-$1.34, above current street consensus of $1.29-$1.31. First quarter EPS would include a currency tailwind of about $0.03 at recent rates.
Before I hand it back over to Geoff, I'd like to take a moment to recognize all of the employees across Medtronic who scaled mountains this year, leaning in to deliver a great year under difficult circumstances. I'm proud to be part of such a terrific team, I couldn't be more excited about the opportunities ahead of us. Back to you, Geoff.
Okay. Thank you, Karen. Now, I'd like to close by emphasizing that there's a lot of energy here at Medtronic, and our momentum is building. You're seeing us perform better than our competition. We've executed in the short term, and we're investing for the long term. We've accomplished a lot in FY 2021, and this is a good start, but our expectations are higher. What will truly differentiate us is accelerating and delivering sustained revenue growth at or above our markets, not just over a year or two, but over the next decade. We have incredible programs in our development pipeline with robust expected financial returns. We're developing the next generation of medical devices that incorporate technologies like artificial intelligence, big data, and miniaturized electronics. These programs have the potential to truly change the future of medicine.
When we look at the opportunities ahead of us and how we expect to translate these into strong returns for our shareholders, the future is bright. Finally, to our 90,000 employees around the world, thank you for everything that you've accomplished this past year. I'm sure they would agree with me when I say, if there's one thing you should take away from today's call, it's that at Medtronic, we're just getting started. With that, let's now move to Q&A. We'll try to get to as many analysts as possible, so we ask that you limit yourself to one question. If you have additional questions, you can reach out to Ryan and the investor relations team after the call. By the way, it's worth noting that IR Magazine recently recognized our investor relations as the best of all companies in the U.S.
An award we're very proud to receive, as it was the result of voting from hundreds of investors and analysts. We look forward to continuing to provide you with transparent communication and a high level of service. With that, Francesca, can you please give the instructions for asking a question?
For the sell-side analyst that would like to ask a question, please select the Participants button and click Raise Hand. If you're using the mobile app, press the More button and select Raise Hand. Your lines are currently on mute. When you are next in the queue, we will notify you directly via the Zoom platform chat function. You will then receive a request to unmute your line, which you must respond to before asking your question. Lastly, please be advised that this Q&A session is being recorded. For today's session, Geoff Martha and Karen Parkhill are joined by Sean Salmon, EVP and President of the Cardiovascular Portfolio and the Diabetes Operating Unit, Bob White, EVP and President of the Medical Surgical Portfolio, and Brett Wall, EVP and President of the Neuroscience Portfolio. We will pause for a minute to assemble the queue.
We'll take the first question from Bob Hopkins at Bank of America Securities. Bob, please go ahead.
Oh, great. Thanks. Good morning. Just to make sure the technology's working okay, can you hear me this morning?
Yes, we can hear you, Bob.
Great. Thanks, Geoff. Appreciate the opportunity to ask a question, and congrats on the momentum. I guess for my one question, given that it's such an important topic, Geoff, and you're such a major player around the globe, and I'm sure investors would love to hear a little more detail on just what you're seeing currently with the recovery and surgical procedures, and what you saw over the course of the quarter. Specifically, are things continuing to improve here early in fiscal Q1, and are you now seeing year-over-year growth above pre-COVID revenue levels currently?
Yeah, thanks for the question, Bob. The way we look at this is by geography and then by product line or therapy. I'll start with the answer. Overall, we're nearing a full recovery, and we're seeing with each month of the quarter, every month was better than the prior month, and that continued to improve and accelerate into May, largely driven by the U.S. market. Once we hit that vaccination inflection point, I know a couple of months ago, people were worried that it wasn't moving fast enough. We hit an inflection point, and things really opened up. In the U.S., depending on what therapy you want to look at, anywhere from 85% to over 100% of pre-COVID levels. Like I said, every month got better. You got to look around the world. China's pretty much back to normal, totally.
Europe being our second biggest, Western Europe, if you look at that as one market, that is lagging behind the U.S. Look, we're confident. When you have a healthcare system like they have with that kind of infrastructure, once they get the vaccinations going, it'll hit that same inflection point in the U.S. and open up. As you know, they're a couple of months behind. The harder one to pin down is the emerging markets. Places like India, where the virus is still raging, other parts of Southeast Asia, Latin America. They don't have the same infrastructure, even when they get the vaccine, and there's a lot of people, so there's a lot of vaccines that you need to get there. That's a harder one to pin down.
Overall, as a company, like I said, we're nearing a full recovery despite the emerging market piece really driven by the acceleration of the U.S., and like I said, we expect Europe to come not too far behind.
Any thoughts on Japan?
Japan, it was doing pretty well. Then it slowed down a bit, and it's starting to come back. Like many of the developed markets, it slowed down in that December, January timeframe, but it is starting to come back for us as well.
Thank you very much.
Thanks, Bob. Let's go to the next question, please, Francesca.
We'll take the next question from Robbie Marcus from J.P. Morgan. Robbie, please go ahead.
Great. I'll add my congrats on the quarter. Karen, maybe for you, there's a lot to unpack here in the guide, and it's great to see revenues come in above the street, offset a little on EPS. I was hoping you could give a bit more color to what's assumed in there in terms of any bolus of recovery patients over the balance of the year. Anything you could give us on top and bottom line cadence throughout the recovery through the year and just how we think about operating margin versus some of the below-the-line items would be great. Thanks.
Thanks, Robbie. In terms of revenue, clearly we're seeing a strong end to our fiscal year, and that's continuing into the first quarter, and we expect that momentum to continue. From a revenue perspective, we expect increasing revenue growth on a two year stack basis throughout the year. In terms of a bolus of revenues, we just expect it to be steady increase. In terms of operating margin, we expect an operating margin expansion this year, even with our significant increase in investment, particularly against the robot and RDN. That's what's driving a guide in line with street expectations. Hopefully that's helpful.
Yeah. Maybe just a quick follow-up there on operating margin, because there's a lot of room and improvement. Is something like in the 28%-28.5% range the right place to be?
Yeah, I would say you can expect a few points, roughly a little bit over three points of improvement in the year. We're driving that expansion at the same time that we're driving important investments.
Great. Thanks a lot.
Yep.
Thanks, Robbie. Let's go to the next question, please, Francesca.
We'll take the next question from Vijay Kumar from Evercore ISI. Vijay, go ahead, please.
Thanks, guys, for taking my question. Geoff, congrats on a solid print here. I did have one question on surgical robotics. Actually, it's a two-parter. One, the $50 million-$100 million expectation and perhaps doubling or tripling. I guess, can you talk about the assumptions behind the wide range? Is that a timing delay on perhaps when you might get the approvals in major markets? Related to that, when I think you guys called out $400 million of operating losses, right? With a revenue of $50 million-$100 million, I think that implies perhaps $1 billion of step-up on the OpEx side. Where is that spend going? How should we think about profitability on these new initiatives? Thank you.
Vijay, I might start by saying that the $400 million of operating losses that we shared with you is both the robot and RDN combined. It's not just the robot. In terms of our assumptions behind the $50 million-$100 million, you can expect it to accelerate into the year, particularly in the back half and the fourth quarter. We're pleased to be launching this robot. We're really excited about the prospects beyond this fiscal year into FY23, where we said that it should double or perhaps even triple.
Sorry. The spend, perhaps can you clarify how much of that is R&D versus separate out of the commercial organization?
Yeah. I'm going to let Bob White comment, too, but you can expect it's a lot. We're going to continue in R&D spending, and we're going to be building out sales force and customer service and support as well.
Yeah. That's right, Karen. That spend is really built as we now commercialize the Hugo. As I talked about in the past, Vijay, we've got a really exciting product pipeline across those four vectors of innovation, instrumentation, data and analytics, visualization, and of course, the robotic system as well.
Thanks, guys.
Thanks, Vijay. Next question, please, Francesca.
We will take the next question from Joanne Wuensch from Citi. Joanne, please go ahead.
Can you hear me okay?
Yes, we can, Joanne.
Wonderful. I'd like to spend just a couple of minutes on diabetes. There's two major medical meetings coming up, ATTD and ADA, and you're launching Guardian 4 sensor and the smart insulin pen outside the U.S. It's sort of a multi-part question. First of all, what should we be expecting at these two meetings, as it relates to the sensor? Could you give us some of the parameters? I know it's zero calibrations. I'm curious on MARD. Then lastly, how do you look to price these products as you bring them first outside the U.S. and then into the U.S.? Thanks.
Okay, Joanne, maybe I'll have Sean answer those questions.
Yeah, thanks, Joanne. Yes, we've got a lot coming out next week at ATTD. You pointed to the sensor data, which will be released. There's the abstract available on the website right now, which includes the MARD numbers. We also have information coming out on the 780G experience, which I'd point you to look at. The first 4,000 patients of real-world experience are being launched there. We'll have additional smart pen data coming out at the ADA meeting. In terms of your specific question on MARD, that's really not a great metric to look at. There's sort of an overall average of how the difference is looking across the full range of the sensor. What you really want to know is when your blood sugar's high or when it's low, is your sensor accurate? Those data are really accurate, and you'll see that in the presentation.
The other thing that's important is the trending. Is the blood sugar reliably going up or down? That's really what matters. Kind of like A1C is a big average over time for glycemic control, and time in range replaced that metric. Really, the accuracy at the right places in the range is what's important, and you'll see that in the data that's being presented. In terms of pricing, there's no plan to change the pricing between what we've done with Guardian Sensor 3 or Guardian Sensor 4 in any market.
Thank you.
Thanks, Joanne. Next question please, Francesca.
We'll take the next question from Chris Pasquale at Guggenheim Securities. Chris, please go ahead.
Sorry, can you hear me okay?
Yeah, we can hear you just fine, Chris.
Great. Wanted to follow up on the diabetes business. 3%- 4% growth coming off of a year in which sales were flat doesn't imply a ton of progress on the turnaround in FY 2022. I'm curious whether that guidance really assumes any contribution from 780G and Zeus in the U.S., and maybe tied into that, give us your latest expectations on the timing of potential FDA approvals for those products.
Yes, Chris, I'll take the first part, and I'm going to let Sean comment on the second part. One thing to keep in mind with our diabetes guide is that we purposely did not adjust for the extra week across the whole company that we had last year because the reduction in bulk purchases offset it. That reduction in bulk purchases did not affect our diabetes business. Really, we need to look at it with the loss of the extra week that is indeed affecting them, and that loss of the extra week is about 150 basis points on the year. Hopefully that's helpful.
Yeah, just to build on what Karen said, we also had a bit of a comparable issue within some international markets where there was some stockpiling of the consumables that get used. That's a little bit of a year-on-year comparison. The bigger effect for us is that the installed base in the last six months, so those coming out of warranty in the last six months, was just higher than what we're going to see in the first half of the fiscal year. Just getting a difference in how many patients come in and with timing. Certainly, the new product flows you mentioned, 780 and Zeus for the U.S., will be most important for us to continue to move both patients from the installed base as well as those new patients, those coming out of MDI or competitors. I don't have an update on the timing.
We're in active review, as Geoff said, on the filing, and the reviewer that's working with us is the same one that reviewed the 770 device, so we think that that familiarity is going to be helpful. There's no update on timing at this point.
Thanks.
Yeah, it's good to see, though, the pipeline starting to show up here. We're looking forward to get to the U.S., but 780G, the new sensor, the extended wear infusion set, that's a pretty powerful combination, and we're seeing great clinical results and great patient feedback, and I think you'll see that in the data that comes out. It's a good leading indicator of what we're going to see in the United States when it gets here.
Okay. Thanks, Chris. Let's go to the next question, please, Francesca.
We'll take the next question from Larry Biegelsen from Wells Fargo Securities. Larry, please go ahead.
Good morning. Thanks for taking the question. Just one for Sean on renal denervation. Sean, for the on-med data TCT, is the pilot data a good proxy? I think with the off-med, we saw a little degradation in the efficacy. Would you expect the same here? Can you have reimbursement? How should we think about the ramp given the uncertainty around reimbursement? I think we all understand it's a big opportunity. You guys are really excited about it. How do we think about, is this something that could be a slow ramp because reimbursement may not be in place upon approval? Thanks for taking the question.
Yeah, thanks, Larry. I think there's a good proxy for that pilot study. Sort of informed our decision, should we continue on, and is this worth studying? We think that magnitude of benefit could be there. You're right to point out that when you get into more centers, more patient and physician variables, things can move around a little bit. We'll see what that looks like. We're confident that the trial's designed properly to get us the right answer. Reimbursement is certainly the hurdle. We do have CE mark. We have approval in a lot of countries, but getting that paid for is going to be important. In the U.S., we're awaiting legally the proposed rule on MCIT to allow four years of coverage as we develop further evidence upon approval. Now, that doesn't cover payment. We still have work to do there.
We still have to go payer by payer because a lot of the patients will fall into the non-Medicare bucket of patients. We've been working that for a number of years, frankly, to make sure that we have the right evidence to satisfy their needs, which really, frankly, drove the need for an on-med trial to begin with. Yeah, we got a lot of work ahead of us, but we're very excited about the opportunity, and it's getting closer and closer.
Thanks, Sean.
Thanks, Larry. Next question, please, Francesca.
We'll take the next question from Rick Wise from Stifel. Rick, please go ahead.
Good morning, everybody. I guess I have a question that maybe is for both Geoff and Karen. It's about cash and maybe talk about your cash generation potential in the year ahead and your thoughts about some of the key drivers there. Maybe, Geoff, you could expand on your thoughts about the use of cash in the sense that, you all indicated that you're buying back stock to offset dilution. You've raised the dividend. That sort of leaves M&A. Is the year ahead going to be a year of more intense M&A activity? You have so much going on internally. Is this a priority? Maybe any color about how you're thinking about your priorities as you look ahead. Thank you.
Sure. Thanks for the question, Rick. In terms of our priorities, our priorities are investing in growth. Today we announced the largest increase in R&D in our history. It's because we're seeing these large market opportunities with clear patient need where Medtronic has a right to win. We're looking at those holistically, investing organically in R&D, but also other growth investments like we talked about ahead of certain product launches like Guardian and the robot. We're investing in sales and marketing and other related growth investments. Inorganics is a priority. We did a number of deals last year, tuck-in deals, and I'd say tuck-ins are still the focus. Those tuck-in deals could be up to $several billion. The ones we did over the last 18 months have been smaller than that. I wouldn't mistake size for impact.
Some of these ones like Medicrea, which is the AI planning tool and outcomes tracking tool for spine, is a real nice piece of the puzzle for our spine strategy. A couple of questions here on the call today about our smart pen, the Companion Medical. These are impactful deals, and we look to continue those. It's still a priority and over and above, over buybacks. We'll see how the year plays out. It's tough to predict, right? We're going to remain disciplined here. I think the theme I'd walk away with is that we're committed to investing in growth, both organically, inorganically, and doing what it takes to do that and still deliver on the EPS growth expectations that we set out. That's what the team's focused on, and you're seeing the benefits of that. Karen, if you want to-
Yeah, I would just add, Rick, your first question on cash generation in the years ahead. Clearly, we are focused on driving strong conversion of our non-GAAP EPS into cash. We said we targeted greater than 80% conversion rate. That doesn't change. We remain focused on delivering that. We also are growing cash along with our earnings. We are focused on driving continued working capital productivity in our day sales outstanding, our days payable, our inventory. You can expect us to continue to have this keen focus on cash flow and driving strong results from it.
Thank you very much.
Thanks, Rick. Next question, please, Francesca.
We'll take the next question from Matt Miksic from Credit Suisse. Matt, please go ahead.
Matt, you there?
Hi, can you hear me okay?
Yeah, now we can. How you doing, Matt?
Great. I'm well, thanks. Thanks so much for taking the question. One on your robotic surgery programs, if I could. The first part, if you could maybe just talk a little bit about how some of the pandemic conditions around the world are affecting your progress so far and how you're thinking about FY22 and some of the range that you've put out there in that $50 million-$100 million. Secondly, there has been this, what feels like a bit of an inflection point in terms of robotic surgery momentum and placement throughout the back end of last year and the first part of this year. I'm just wondering how, y eah, if you could describe how you compare the fourth quarter to the third quarter and how the cadence feels in terms of new placements and pull-through in your current programs.
Sure. Okay. Yeah, I was going to ask you to clarify because when you said robotics, I wasn't sure. On the spine side, look, Matt, I know you followed this for years. The strategy of surrounding the spine procedure and preceding the spine procedure, and following up the spine procedure with enabling technology from surgical planning to navigation, intraoperative imaging, the robot, this is paying off. We had record sales last quarter of our capital equipment tied to spine procedures, and continued to outpace the competition on the robotic sales. More than anything, okay, more important than all of that is the surgeon feedback that we are getting has hit an inflection point. They are now talking about the outcomes that they're getting from this.
It's the planning, the precision of the planning to get the right alignment plan in there, and then the accuracy of executing to that plan with nav, and the robot, and then the ability to follow it up and access images in the PACS system through Medicrea to come back and retrain or continue to evolve our algorithms. Also show surgeons, are you really getting that alignment that you thought. This is coming together, and I think we are separating ourselves from the pack and really getting closer to what our ultimate goal here is to transform spine surgery from the art that it is today to a science and then demonstrate it with outcomes. That is something we're very excited about. Like you mentioned, the momentum.
The momentum from the enabling technology, like I said, record sales, and it's because the buzz is out there from surgeons starting to talk about the results they're getting from using this. People that were sitting on the sidelines are jumping in, and the bus is moving. The train's left the station on this one. The feedback from our field, again, a lagging indicator, is palpable, the energy. We're feeling really good about spine and robotics. The lessons that we learned from spine, we are spending a lot of time, our spine team and Brett Wall working with Bob White and Megan Rosengarten on the soft tissue robot. I think a lot of those lessons learned. The markets aren't the same. They're different, but there are some lessons learned, and there are some synergies there that we will incorporate into our Hugo soft tissue robot launch.
Thanks so much.
Thanks, Matt. Next question, please, Francesca.
We'll take the next question from Jayson Bedford from Raymond James. Jayson, please go ahead.
Good morning. I just wanted to get back, Karen, to the operating margin commentary. It looks like you did just under 24% in FY21. I think you mentioned you're expecting a little over 300 basis points in FY22. Is the anticipation that op margin in FY22 is going to be around 27%?
Yeah. 27.5, in that range for the year. Keep in mind that our op margin should improve as we go through the year, and so by the end of the year, we expect it to be above that 28%.
Okay. Just any commentary on gross margin?
Yeah. Gross margin, we also expect a sequential improvement, about half a point of sequential improvement in the gross margin through the year.
Thank you.
Thanks, Jayson. Next question, please, Francesca.
We'll take the next question from Danielle Antalffy from SVB Leerink. Danielle, please go ahead.
Hey, good morning, everyone. Thanks so much for taking the question. Geoff, I just wanted to follow up on a comment you made earlier regarding it depends on the business line as to the recovery. Where are the business lines that are lagging and when are you expecting those business lines to get back to full recovery relative to some that have already gotten there? Thanks so much.
I'd say in the United States, even the ones that are lagging, I would expect them to get back to a full recovery in our fiscal Q1. The ones that are lagging are the more elective areas like ENT, our GI business, our Endovenous business. All those businesses that I mentioned, we talked in the commentary about ENT and GI gaining share. It's not a competitive thing. It really is a COVID issue. In the United States, we expect those to get back in our fiscal Q1. We talked about before, Europe's lagging by a few months and emerging market's hard to predict. It comes down to the elective nature. There's a spectrum. Maybe stroke on one end, not very elective, at least from my perspective.
On the other end, you have some of these ones I just mentioned, like ENT, GI, Endovenous. I hope that answered your question, Danielle.
I'm at a loss here. Thanks, Danielle. We'll take one more question, please, Francesca.
We'll take the last question from Steven Lichtman from Oppenheimer. Steve, please go ahead.
Thank you. Good morning. Geoff, I was wondering if you could talk about the benefits you're seeing from the more decentralized operating structure now a year in. Is it delivering what you had hoped? Any comments on the changes you're seeing on the ground would be helpful. Just to clarify, FY22 will be the first year that market share will be included in compensation? Thanks.
Yeah. The answer to your last question is yes. FY 2022 will be the first year. We need to work on how to measure this over the course of FY 2021 precisely enough to put it in comp. In terms of the operating model, I'd say, look, the dust is still settling a bit, but we are definitely past, I'd say, the most difficult part, and I'm excited about where we're headed. We've got increased role clarity and accountability across the org in this new decentralized model. People are now looking forward and focused on their key metrics. For our operating units, it's this innovation pipeline. It's their market growth, it's their market share, as we just talked about.
This market share one is liberating for us because instead of comparing ourselves to ourselves, we're comparing ourselves to the market with the clear expectation to grow at or above the market. That clarifies a lot. For our regions, things like strategic account growth over and above what we're getting in the traditional MedTech model of selling to the specialist physician and focused on those patients. In addition to that, the strategic account growth. For our executive committee, for the people on this call, measurements around capital allocation to the high growth segments, portfolio management, all in a focus to increase our overall company weighted average market growth rate. Right? Finally, I'd say there's lots of excitement, more than I would've thought maybe even about the culture changes. This thing we're calling the Medtronic Mindset that really works alongside our mission.
Medtronic's known for a mission-driven company. We always want to be known for that. That's kind of our why, if you will. Adding these things like acting boldly, competing to win, move with speed and decisiveness, delivering results the right way, adding these into the mix alongside our mission has generated a lot of energy, and it's kind of taken off organically inside the company. Overall, really happy with where it's going, and we're starting to see the results of this.
Okay. Thanks, Steve. Geoff, please go ahead with your closing remarks.
Sure. All right. Thanks everybody for the questions, and we really appreciate your support and your continued interest in Medtronic. We hope you'll join us for our Q1 earnings for our webcast, which we anticipate holding on August 24th, where we'll update you on our progress. With that, again, thanks for tuning in today, and please stay healthy and safe and have a great rest of your day.