Surgical Stapler Design Patents: Who Leads, Where the Gaps Are 2026
- 91.3% concentration. The top five assignees combined hold 21,717 of the 23,786 records in scope — this field is not fragmented, it is owned.
- Filings peaked in 2018 at 1,758. By the last complete year, 2024, annual filings had fallen to 341, down 68% from 1,065 in 2021.
- Momentum has stalled even at the top. The leading assignees are posting steep year-on-year declines in their latest reported filings, not just a slowdown from a smaller base.
Filing growth compares 2021 (1,065 records) with 2024 (341) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 23,786 records in scope (CR5), not by the ranked leaders only.
What this dataset covers
This landscape draws on 23,786 published records matching surgical stapler and linear stapler filings that also reference staple line, staple height, tissue thickness, firing force, anvil design, or leak rate — the terms that separate design patents on the fastening mechanism from generic surgical-tool filings. Coverage runs from 2015 through the 2026-07-31 data cut-off, with the most recent one to two years understated because publication lags filing by roughly 18 months.
The picture that emerges is a mechanically mature category: a small number of instrument makers hold nearly all of the claim space, filing volume has fallen sharply from its 2018 peak, and the most-cited prior art dates back a decade or more. For anyone assessing freedom to operate or looking for a filing angle, the question is less 'is this space crowded' and more 'which narrow branches inside it are not yet claimed.'
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Filing trend and technology composition
Two views of the same 23,786 records: how filing volume has moved year over year, and which IPC subclasses the records fall under.
Filing trend: a sharp rise, then a sharper fall
Annual filings rose to a peak of 1,758 in 2018, then declined; by 2021 the total was 1,065, and by 2024 — the last year that can be treated as complete — it had dropped to 341, a 68% fall over that three-year span. Years after 2024 show far lower counts, but that reflects publication lag rather than a further collapse in filing activity.
Technology composition: concentrated in one subclass
A61B (diagnosis & surgery) covers 79.7% of the 23,786 records, dwarfing every adjacent class — G16H healthcare informatics sits at 4.5%, A61L sterilising and disinfecting at 3.2%, and the remaining classes, from implants to power supply, each account for under 2%. Records can carry more than one class, so these shares add up to more than 100%; the pattern still shows how narrowly the mechanical and closure-system claims sit inside A61B relative to the digital and materials-adjacent classes around it.
Shares are the percentage of the 23,786 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Surgical Stapler Design with Eureka
This page is one run against one query. Ask Eureka your own question about surgical stapler design and every answer comes back with the patent numbers behind it.
Try EurekaThe prior art doing the most work
US8864009B2 — Tissue thickness compensator for a surgical stapler comprising an adjustable anvil
A fastener cartridge can comprise a support portion, a tissue thickness compensator positioned relative to the support portion, and a plurality of fasteners positioned within the support portion and/or the tissue thickness compensator which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein a second jaw, or anvil, can be positioned opposite the first jaw. To deploy the fasteners, a staple-deploying member is advanced through the fastener cartridge to move the fasteners toward the anvil. As the fasteners are deployed, the fasteners can capture at least a portion of the tissue thickness compensator therein.Filed by Cilag GmbH International, published 2014-10-21 — anchors the tissue-thickness-compensation claim family that recurs across the most-cited records in this dataset.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US7000818B2 | Surgical stapling instrument having separate distinct closing and firing systems | 6,308 |
| 2 | US20140263552A1 | Staple cartridge tissue thickness sensor system | 5,415 |
| 3 | US7845537B2 | Surgical instrument having recording capabilities | 5,202 |
| 4 | US7422139B2 | Motor-driven surgical cutting fastening instrument with tactile position feedback | 5,049 |
| 5 | US20070175955A1 | Surgical cutting and fastening instrument with closure trigger locking mechanism | 4,919 |
| 6 | US8393514B2 | Selectively orientable implantable fastener cartridge | 4,886 |
| 7 | US5465895A | Surgical stapler instrument | 4,653 |
| 8 | US6978921B2 | Surgical stapling instrument incorporating an E-beam firing mechanism | 4,593 |
| 9 | US20140263541A1 | Articulatable surgical instrument comprising an articulation lock | 4,419 |
| 10 | US7380695B2 | Surgical stapling instrument having a single lockout mechanism for prevention of firing | 4,391 |
Citation counts inside this corpus favour older filings that have had more years to accumulate citations — read them as a signal of influence on the field, not of current commercial weight.
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Browse MCP servers →What the data means for filing strategy
Four read-outs from the assignee, trend, and citation data — useful for deciding where a new filing has a realistic chance of standing on its own.
This is an owned field, not a fragmented one
With the top five assignees combined holding 21,717 of 23,786 records and the top ten reaching 94.8%, most of the mechanical stapler design space — cartridge structure, anvil geometry, firing mechanisms — sits under a small number of large portfolios. A new entrant's core mechanical claims will almost always read on prior art from one of these holders.
Volume has fallen from a 2018 peak, not accelerated
Filings peaked at 1,758 in 2018 and had dropped to 341 by 2024, a 68% decline from the 2021 level of 1,065. That is a sustained pull-back in new mechanical filings rather than a temporary dip, though 2025-2026 counts are too early to read given publication lag.
The foundational claims are a decade or more old
The most-cited record in this dataset, on separate closing and firing systems, carries 6,308 citations; the next four most-cited records are similarly built around closure triggers, tissue-thickness sensing, and motor-driven firing feedback. New filings in these exact mechanisms face very dense, well-established prior art.
Filing activity is US-anchored with a thinner international spread
The United States leads with 7,011 filings, ahead of the EPO at 4,566 and WIPO/PCT at 1,887; India, Australia, and Canada each sit near or just above 1,000. A filing strategy built only around US and EPO coverage would still miss meaningful activity recorded through PCT and in India.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to surgical stapler design, with the prior art for and against each one.
Assignee landscape and recent momentum
The ranking covers 100 assignees measured in records; it is not a top-50 or top-100 list of the whole field, just the full set the ranking endpoint returns. Momentum in the most recent reported year shows contraction even among the leaders, not just the long tail.
One assignee holds close to a third of all records
The leading assignee's 7,258 records against a field of 23,786 sets the scale for everything below it — the fifth-ranked assignee holds 441 records and the tenth holds 80, a steep drop-off that confirms this is a winner-heavy field rather than an evenly spread one.
Even large portfolio holders are filing far less
Cilag International's latest-year count fell to 11 filings, down 88% year on year, and Covidien LP's latest year is down 90%. This is consistent with the broader 2021-to-2024 filing decline rather than an isolated retreat by one company.
Named-inventor pairings cluster around one corporate parent
The strongest co-assignee pairing recurs 83 times between Ethicon Endo-Surgery and a single named inventor, with two further pairings at 52 and 45 — evidence of a stable internal invention team rather than external co-development partnerships.
| Assignee | Recent year | YoY |
|---|---|---|
| Cilag GmbH International | 11 | -88% |
| APPL MEDICAL RESOURCES CORP | 3 | -75% |
| Standard Bariatrics Inc | 2 | -67% |
| Covidien LP | 1 | -90% |
| Ethicon Inc | 0 | -100% |
| Ethicon Endo-Surgery Inc | 0 | — |
| ETHICON ENDO SURGERY LLC | 0 | — |
| United States Surgical Corp | 0 | — |
Where to take this analysis
The landscape points to a small number of concrete follow-up questions rather than a single conclusion.
Check freedom to operate against the top holders
With 91.3% of records held by five assignees, any new mechanical stapler filing should be checked against their specific claim scope before drafting, not just against the category as a whole.
Run a freedom-to-operate check in EurekaTest the under-claimed branches for real demand
Firing-force sensing, staple-height auto-adjustment, and leak-rate detection show thinner filing density than the core mechanical claims — worth validating against clinical need before committing R&D.
Explore white space in EurekaWatch for the next filing wave
The 2021-to-2024 decline is real, but publication lag means 2025-2026 filings are still arriving; re-run this landscape in a year to see whether the pull-back continues or reverses.
Set a monitoring alert in EurekaCommon questions about surgical stapler patents
One assignee holds 7,258 of the 23,786 records in this dataset, well ahead of the rest of the field — the fifth-ranked assignee holds 441 and the tenth holds 80. The top five assignees combined account for 91.3% of all records, and the top ten reach 94.8%, which means the mechanical design space is concentrated in a handful of large instrument makers rather than spread across many independent filers. Anyone entering this space should expect their core mechanical claims to be checked against these leaders first.
Filings peaked in 2018 at 1,758 and have declined since; by 2024, the last year that can be treated as complete, annual filings had fallen to 341, a 68% drop from the 1,065 filed in 2021. Counts for 2025 and 2026 appear much lower still, but that reflects publication lag of roughly 18 months rather than an actual collapse in activity. The honest read is a sustained multi-year decline through 2024, with the very latest years too early to interpret.
Almost 80% of the 23,786 records (79.7%) fall under IPC class A61B, diagnosis and surgery, reflecting the core mechanical stapler mechanism. Smaller but notable shares sit in G16H healthcare informatics (4.5%) and A61L sterilising and disinfecting (3.2%), with implants, digital data processing, body-fluid devices, power supply, and plastics shaping each under 2%. Records can carry multiple IPC classes, so these figures add up to more than 100% of the record total.
US8864009B2, assigned to Cilag GmbH International and published in 2014, claims a tissue thickness compensator for a surgical stapler with an adjustable anvil — a fastener cartridge design where a compensator captures tissue as fasteners are deployed toward the anvil. It sits inside the same claim family as several of the most-cited records in this dataset, all built around tissue-thickness sensing and closure-firing mechanics. Anyone designing a stapler with adjustable anvil or tissue-thickness-compensation features needs to map their claims against this filing specifically, not just against the category generally.
The core mechanical claims — cartridge structure, anvil geometry, closure and firing systems — are heavily claimed by the leading assignees, but adjacent areas show thinner filing density inside this dataset, including firing-force feedback sensors, staple-height auto-adjustment logic, leak-rate detection integration, and power-supply management for powered staplers. These sit closer to the smaller IPC classes such as G16H and G06F rather than the dominant A61B class. They are worth validating against real clinical demand rather than assumed to be open simply because filing volume is lower.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.