US5863294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folded-end surgical tubular cutter and method for fabrication
Assignee: Ethicon Inc
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Filing: 1996-01-26
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Granted: 1999-01-26
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Expires: 2016-01-26
Abstract
Abstract The present invention provides a tubular surgical cutter fabrication method comprising forming one or more tabs which extend beyond an end of a tube. Each of the tabs is then folded across at least a portion of the end of the tube, and affixed in the folded position to form an end structure extending across the end of the tube. A cutting edge is imposed on the tube adjacent to the end structure, thereby providing a tubular surgical cutter having the structural reinforcement of a closed end without resorting to welding or otherwise attaching a closed end structure about the perimeter of the tube.
Inventors
- 👤 Donald L. Alden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B2017/32004
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
65 words
A tubular surgical cutter fabrication method comprising: forming at least one tab extending beyond an end of a tube; folding each tab across at least a portion of the end of the tube; affixing each folded tab in place to form an end structure which extends across the end of the tube; and imposing a cutting edge on the tube adjacent to the end structure.
Claim 2
Dependent Claim
65 words
A tubular surgical cutter fabrication method comprising: forming at least one tab extending beyond an end of a tube; folding each tab across at least a portion of the end of the tube; affixing each folded tab in place to form an end structure which extends across the end of the tube; and imposing a cutting edge on the tube adjacent to the end structure.
Claim 3
Dependent Claim
23 words
A method as claimed in claim 1, wherein the tab forming step comprises cutting away tube material to form a plurality of tabs.
Claim 4
Dependent Claim
16 words
A method as claimed in claim 2, wherein the folding step comprises bringing the tabs together.
Claim 5
Dependent Claim
30 words
A method as claimed in claim 3, wherein the folding step further comprises bringing two tabs together end-to-end, and wherein the affixing step comprises welding the tabs to each other.
Claim 6
Dependent Claim
27 words
A method as claimed in claim 1, further comprising removing a portion of the tube material adjacent to the end of the tube to form an aperture.
Claim 7
Dependent Claim
25 words
A method as claimed in claim 5, wherein the cutting edge imposing step comprises forming an edge on an axially oriented surface bordering the aperture.
Claim 8
Dependent Claim
22 words
A method as claimed in claim 6, wherein the cutting edge imposing step further comprises forming an edge on the end structure.
Claim 9
Dependent Claim
47 words
A method as claimed in claim 6, further comprising inserting the tube within an outer tubular structure having a chopping edge so that the cutting edge and the chopping edge shear tissues which enter the aperture when the tube is rotated relative to the outer tubular structure.
Claim 10
Dependent Claim
51 words
A method as claimed in claim 6, further comprising inserting an inner tubular structure within the tube, the inner tubular structure having a chopping edge so that the cutting edge and the chopping edge shear tissues which enter the aperture when the inner tubular structure is rotated relative to the tube.
Claim 11
Dependent Claim
13 words
A tubular surgical cutter formed according to the method claimed in claim 1.
Claim 12
Dependent Claim
33 words
A tubular surgical cutter as claimed in claim 10, further comprising an inner tubular cutter formed according to the method of claim 1, the inner tubular cutter rotatably disposed within the tubular cutter.
Claim 13
Dependent Claim
80 words
A tubular surgical cutter fabrication method comprising: forming two tabs which extend from a tubal wall beyond an end of a tube; folding the tabs across the end of the tube toward each other; attaching the tabs together to form an end structure extending across the end of the tube; removing a portion of the tube material adjacent to the end to form an aperture; and imposing a cutting edge on a surface of the tube which borders the aperture.
Claim 14
Dependent Claim
80 words
A tubular surgical cutter fabrication method comprising: forming two tabs which extend from a tubal wall beyond an end of a tube; folding the tabs across the end of the tube toward each other; attaching the tabs together to form an end structure extending across the end of the tube; removing a portion of the tube material adjacent to the end to form an aperture; and imposing a cutting edge on a surface of the tube which borders the aperture.
Claim 15
Dependent Claim
33 words
A tubular surgical cutter fabrication method as claimed in claim 12, further comprising removing a portion of the end structure and imposing a cutting edge on the end structure bordering the removed portion.
Claim 16
Dependent Claim
26 words
A tubular surgical cutter fabrication method as claimed in claim 13, wherein the end structure covers a centerline of the tube after the portion is removed.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-01-25 | 2002-07-27 | 2003-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-25 | 2006-07-27 | 2007-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-25 | 2010-07-27 | 2011-01-26 | $7700.00 | Window Closed / Lapsed |