US3638652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument for intraluminal anastomosis
Assignee: Individual
•
Filing: 1970-06-01
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Granted: 1972-02-01
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Expires: 1990-06-01
Abstract
Abstract An instrument for use by surgeons particularly in cases involving resection and anastomosis of vascular and digestive tract organs. The instrument is dimensioned for insertion of the principal parts of the instrument into the open ends of or through stab wounds in the lumena after resection and the actual anastomosis is by stapling the tissue entirely around the stoma which is formed by an endless knife, illustrated as annular, and the tissue cut away to form the stoma is conveniently removed with instrument. The staples and knife are in a replaceable cartridge. Remote power means connected by a flexible conduit allows maximized ease of maneuverability of the principal parts of the instrument during actual surgical procedure.
Inventors
- 👤 James L Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:38
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/32053; A61B17/11; A61B17/115; A61B17/1155; A61B2017/00535; A61B2017/00539; A61B2017/00973
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
A surgical instrument for intraluminal anastomosis, comprising: a cartridge having at least one row of staples forming a closed loop; a head receiving said cartridge and having staple pusher means engaging the bight portions of said staples; an actuator having an anvil and a power-operated link joining said head and actuator and adapted to move said head, including said pusher means toward said anvil thus discharging and clinching said staples; a stoma-forming knife in said head generally conforming to and disposed inside said row of staples; and means to disengage said link from said head, thus permitting removal of the instrument along with the tissue excised by said knife.
Claim 2
Dependent Claim
109 words
A surgical instrument for intraluminal anastomosis, comprising: a cartridge having at least one row of staples forming a closed loop; a head receiving said cartridge and having staple pusher means engaging the bight portions of said staples; an actuator having an anvil and a power-operated link joining said head and actuator and adapted to move said head, including said pusher means toward said anvil thus discharging and clinching said staples; a stoma-forming knife in said head generally conforming to and disposed inside said row of staples; and means to disengage said link from said head, thus permitting removal of the instrument along with the tissue excised by said knife.
Claim 3
Dependent Claim
30 words
A surgical instrument according to claim 1 wherein said staple pusher means in said cartridge as loaded into said head extend from a face of said cartridge toward said head.
Claim 4
Dependent Claim
21 words
A surgical instrument according to claim 2 wherein said pusher means is a plurality of individual pins discrete from each other.
Claim 5
Dependent Claim
37 words
A surgical instrument according to claim 1 wherein said actuator has means to receive said knife and said head has knife pusher means extending similarly to said staple pusher means from said one face of the cartridge.
Claim 6
Dependent Claim
20 words
A surgical instrument according to claim 4 wherein said knife pusher means is an annular sleeve discrete from said knife.
Claim 7
Dependent Claim
41 words
A surgical instrument according to claim 1 wherein said actuator comprises a small disclike element having an axial length comparable to said head so that the axial length of the head-actuator assembly is less than twice the diameter of the knife.
Claim 8
Dependent Claim
52 words
A surgical instrument according to claim 1 wherein said actuator comprises a short cylinder with a piston operatively mounted therein to reciprocate said link and having a flexible conduit to connect said cylinder with a source of pressurized fluid, the flexibility of said tube making the head-actuator assembly easily maneuverable in use.
Claim 9
Dependent Claim
32 words
A surgical instrument according to claim 1 wherein said actuator has a cylinder with a piston therein connected to said link, and a remote fluid pressure means operatively connected with said cylinder.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |