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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/surgical-staplers-and-tissue-fixation-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Medical Equipment · Patent LandscapeSurgical stapler and tissue fixation patents: concentration at the top, a fading filing curve
- 91.2% of all 1,581 records sit with just five assignees — one of the tightest concentrations you will see in a surgical device category.
- Filings peaked in 2021 at 128 and have declined since; the 2022 midpoint of 38 already sits well below peak, with the field's largest filer down 80% year-on-year in the latest data.
- A61B carries 99.9% of records while sterilisation (A61L), digital data processing (G06F) and power supply (H02J) classes each sit under 7% — an early marker of where smart-stapler and connected-device claims are thin.
1,581
Published Records
91%
Top-5 Share of All Records
-77%
3-Yr Growth (lag-adjusted)
US
Leading Jurisdiction
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Field Overview
What the surgical stapler patent record shows
Surgical staplers and tissue fixation devices sit inside a mature mechanical category with a heavy overlay of biomaterials claims — buttress materials, staple line integrity, and tissue thickness compensation dominate the search terms behind this dataset. The 1,581 records in scope span 2015 through the 2026 cut-off, drawing on IPC classes for surgical instruments (A61B17, A61B90) and sterilising or absorbable materials (A61L31). Most-cited records in the set date back to the 1980s and 1990s, which is typical for a mechanical device field: early firing-force and stapler-instrument patents accumulate citations simply by being first, not because they remain the active frontier.
The filing curve tells a second story: growth was not sustained. Filings rose toward a peak in 2021 and have fallen in the years since, including a sharp pullback from the field's largest filer in the most recent year. That combination — heavy concentration plus a declining curve — points to a category where the core mechanical claim space is largely staked out, and where the open questions now sit in adjacent classes that carry only single-digit shares of the record base.
Filing trend and technology composition, 2015–2026
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Surgical Staplers and Tissue Fixation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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The Data
Filing trends and technology composition
Two views of the same 1,581 records: how filing activity moved year over year, and which IPC subclasses the claims actually sit in.
Filing trend, 2017–2026
Filings ran at 53 in 2017, climbed to a peak of 128 in 2021, then declined, with a midpoint of 38 in 2022 and 3 by 2026 (a partial year). Publication typically lags filing by around 18 months, so the most recent one to two years will always understate real activity — but the multi-year decline from the 2021 peak predates that lag effect and is a genuine slowdown.
IPC subclass composition
A61B (diagnosis and surgery) covers 99.9% of the 1,581 records, confirming this is overwhelmingly a surgical-instrument category. Every other class sits under 7%: A61L (sterilising and disinfecting) at 6.1%, B25C and B29C (nailing tools and plastics shaping) each near 1.1%, and G06F (digital data processing) and H02J (power supply) each under 1%. Because records can carry multiple classes, these shares add to more than 100% of the record total — they show where claims cluster, not a partition of the dataset.
Shares are the percentage of the 1,581 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Surgical Staplers and Tissue Fixation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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Representative and most-cited filings
Representative Filing
Buttress material for use with a surgical stapler (US20080169328A1)
ETHICON ENDO-SURGERY, INC.
The filing describes a piece of buttress material shaped to match the curved profile of a stapler's anvil and staple cartridge, with first and second edges defined by different radii of curvature so the material conforms to the curved cartridge surface during firing.Filed by Ethicon Endo-Surgery, Inc., published 2008-07-17.
Most-cited records in this dataset
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5465895A | Surgical stapler instrument | 4,651 |
| 2 | US5597107A | Surgical stapler instrument | 3,804 |
| 3 | US4610383A | Disposable linear surgical stapler | 2,884 |
| 4 | US20160066913A1 | Local display of tissue parameter stabilization | 2,787 |
| 5 | US5489058A | Surgical stapler with mechanisms for reducing the firing force | 2,727 |
| 6 | US20080169328A1 | Buttress material for use with a surgical stapler | 2,716 |
| 7 | US5487500A | Surgical stapler instrument | 2,692 |
| 8 | US7481347B2 | Pneumatic powered surgical stapling device | 2,513 |
| 9 | US7438209B1 | Surgical stapling instruments having a releasable staple-forming pocket | 2,480 |
| 10 | US5662258A | Surgical stapler instrument | 2,479 |
Citation counts favour older filings inside any searched corpus — they signal historical influence on later claim drafting, not which patents govern the field today.
Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Surgical Staplers and Tissue Fixation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers mean for filing strategy
Three patterns in the data matter more than the raw counts: where the field concentrates, where it's slowing, and where claim density is still thin.
Concentration
91.2% of 1,581 records
held by the top five assignees
The core mechanical claim space is largely staked out
With five assignees accounting for 91.2% of all records in scope, and ten accounting for 96.9%, new entrants filing on core firing-force or staple-line-integrity mechanisms are filing into dense prior art held by a small number of incumbents.
Top 10 combined: 1,532 of 1,581 records
Momentum
Peak 128 in 2021
vs. 3 in 2026 (partial)
Filing activity has declined from its 2021 peak
The field's largest filer recorded a decline of 80% year-on-year most recently, and several other tracked assignees show zero filings in the latest year. Publication lag means the newest year always understates true activity, but the multi-year downward trend from 2021 is independent of that lag.
2022 midpoint: 38 filings
White space
Under 1% share
for G06F and H02J classes
Smart and powered-stapler claims remain thin
Digital data processing (G06F, 0.8% of records) and power supply and grid systems (H02J, 0.4% of records) barely register against the 99.9% share held by core surgical-instrument claims (A61B). That gap is notable given how much commercial attention powered and sensor-equipped staplers have received.
A61F implant-adjacent claims: 0.8% of records
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Co-assignee activity
| Assignee | Co-assignee | Shared families |
|---|---|---|
| Ethicon Endo-Surgery, Inc. | SHELTON FREDERICK E IV | 15 |
| Ethicon Endo-Surgery, Inc. | BAXTER CHESTER O III | 14 |
| ARONHALT TAYLOR W | YOUNG JOSEPH E | 14 |
| ARONHALT TAYLOR W | SCHMID KATHERINE J | 10 |
| Ethicon Endo-Surgery, Inc. | YOUNG JOSEPH E | 8 |
| Ethicon Endo-Surgery, Inc. | ARONHALT TAYLOR W | 8 |
| SHELTON IV FREDERICK E | ARONHALT TAYLOR W | 8 |
| ARONHALT TAYLOR W | SHELTON FREDERICK E IV | 8 |
The dataset records 10 co-assignee pairs, with the strongest pairings tied to named inventors inside the leading incumbent's filing teams — a sign that core claim development is happening inside established R&D groups rather than through cross-company collaboration.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Surgical Staplers and Tissue Fixation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Who's Filing
Players and where the gaps sit
Fifty-nine companies appear in the ranked assignee list this dataset returns. Activity drops off fast after the leading names: fifth place holds 39 records and tenth place holds 15, against a leader with 535.
Leader
535 records
held by the top-ranked assignee
One filer dominates the ranked list
The leading assignee alone accounts for more than a third of all 1,581 records in scope, well ahead of the rest of the ranked field, though its own filing pace has recently slowed sharply.
-80% YoY in the latest tracked year
Long tail
15 records
at tenth place
Activity falls off steeply past the top few names
The gap between fifth place (39 records) and tenth place (15 records) shows how quickly filing volume thins out once you move past the five assignees holding 91.2% of the dataset.
59 companies in the full ranked list
Filing routes
United States 559
largest receiving office
Filing geography centres on the US, EPO and India
The United States (559 records) and Europe (399) are the largest receiving offices, with India (157) and WIPO/PCT (137) also carrying meaningful volume — a filing footprint consistent with a device category needing regulatory clearance across major device markets.
Canada: 63 records; Austria: 71 records
Recent filing momentum by assignee
| Assignee | Recent year | YoY |
|---|---|---|
| Cilag GmbH International | 3 | -80% |
| Ethicon Endo-Surgery, Inc. | 0 | — |
| Ethicon, Inc. | 0 | — |
| Covidien LP | 0 | -100% |
| ETHICON ENDO SURGERY LLC | 0 | — |
| SHELTON IV FREDERICK E | 0 | — |
| United States Surgical Corporation | 0 | — |
| APPL MEDICAL RESOURCES CORP | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Surgical Staplers and Tissue Fixation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next
Where to take this analysis
The dataset points to a category with concentrated ownership of core mechanical claims and thin coverage in adjacent electronic and materials branches.
Map the white space branches in detail
Digital feedback, powered firing and absorbable-material chemistry all sit under 7% of records — worth a targeted search before committing R&D or filing budget to these branches.
Explore white space in EurekaTrack the leading filer's slowdown
An 80% year-on-year decline from the dataset's largest assignee is a signal worth watching closely for shifts in competitive filing strategy.
Monitor assignee activity in EurekaSource: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Surgical Staplers and Tissue Fixation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Common questions on surgical stapler patents
The dataset's ranked assignee list is led by a single company holding 535 of the 1,581 records in scope, far ahead of the rest of the field. The top five assignees combined hold 91.2% of all records, and the top ten hold 96.9%, so ownership of core surgical stapler claims is heavily concentrated rather than spread across many players. Anyone assessing freedom to operate in this space should expect to run into this small group's prior art first, particularly on staple-line integrity and firing-force mechanisms.
Filing activity peaked in 2021 at 128 records and has declined since, with the 2022 midpoint already down to 38. The most recent tracked year shows only 3 filings, and the field's largest assignee posted an 80% year-on-year decline. Publication typically lags filing by about 18 months, so the very latest year always looks lower than true activity, but the multi-year downward trend from the 2021 peak is a real slowdown, not just a lag artefact.
Buttress material refers to reinforcing material placed over or around a surgical stapler's staple line, typically to reduce leak rate and improve staple line integrity as the device fires through tissue. A representative filing in this dataset, US20080169328A1 from Ethicon Endo-Surgery, describes buttress material shaped with two different edge curvatures so it conforms to the curved profile of a stapler's anvil and cartridge. Buttress material claims sit inside the sterilising and materials-related IPC class A61L31, which covers 6.1% of the 1,581 records in this dataset.
The clearest gaps sit in classes adjacent to the core mechanical claim space: digital data processing (G06F, 0.8% of the 1,581 records) and power supply and grid systems (H02J, 0.4% of records) are both thin relative to the 99.9% share held by core surgical-instrument claims under A61B. This suggests powered, sensor-equipped and digitally-monitored stapler features are comparatively under-claimed even though they attract significant commercial attention, making them a reasonable area to search before filing.
The United States is the largest single receiving office with 559 of the records in this dataset, followed by Europe (EPO) at 399, India at 157 and WIPO/PCT filings at 137, with Austria and Canada also carrying meaningful volume. This spread reflects a device category that typically requires regulatory clearance and patent protection across several major markets simultaneously rather than filing in one jurisdiction alone.
Answers are grounded in the same dataset. Derived from a Patsnap search on Surgical Staplers and Tissue Fixation covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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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.