Patent US1262782A successfully refreshed from Google Patents.
US3740994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three stage medical instrument
Assignee: United States Surgical Corp
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Filing: 1970-10-13
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Granted: 1973-06-26
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Expires: 1990-10-13
Abstract
Abstract A cartridge and an instrument which, together serve to mechanically suture and divide organic tubular structures, such as blood vessels. The cartridge houses a plurality of staples and operates in three stages. After the tubular structure is inserted between the jaws of the cartridge, the cartridge jaws close, a pair of pushers come forward and suture the organic structure in two spaced locations with a pair of surgical staples, and a blade comes forward and divides the tubular structure at a position intermediate the two staples. The staples are indexed and readied for discharge by means of a pair of leaf springs which act between a fixed rail assembly and a movable wrap assembly. The instrument is adapted to coact with the novel cartridge and depends upon the interaction of three springs to bring about the three-stage operation of the cartridge.
Inventors
- 👤 Carlo A De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:11
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/128; A61B17/32; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53709; Y10T29/53783
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
206 words
A surgical instrument adapted to associate with and operate a staple-carrying cartridge having a three-stage operation and including ligating means, suturing means and organic tubular structure dividing means, the instrument comprising: a main boy portion; first, second and third attachment means associated with said main body portion and moveable with respect to said main body portion and with respect to one another, said first attachment means adapted to associate with said organic tubular structure dividing means, said second attachment means adapted to associate with said suturing means and said third attachment means adapted to associate with said ligating means; trigger means moveably mounted on said main body portion linking means operatively connecting said trigger means to said first attachment means so that activation of said trigger means causes said first attachment means to move relative to said main body portion; biasing means associated with said first, second and third attachment means for influencing the movement of said first, second and third attachment means relative to said main body portion and relative to each other, said first, second and third attachment means and said biasing means cooperating to provide three-stage operation of said instrument and said threestage operation of said cartridge on activation of said trigger means.
Claim 2
Dependent Claim
206 words
A surgical instrument adapted to associate with and operate a staple-carrying cartridge having a three-stage operation and including ligating means, suturing means and organic tubular structure dividing means, the instrument comprising: a main boy portion; first, second and third attachment means associated with said main body portion and moveable with respect to said main body portion and with respect to one another, said first attachment means adapted to associate with said organic tubular structure dividing means, said second attachment means adapted to associate with said suturing means and said third attachment means adapted to associate with said ligating means; trigger means moveably mounted on said main body portion linking means operatively connecting said trigger means to said first attachment means so that activation of said trigger means causes said first attachment means to move relative to said main body portion; biasing means associated with said first, second and third attachment means for influencing the movement of said first, second and third attachment means relative to said main body portion and relative to each other, said first, second and third attachment means and said biasing means cooperating to provide three-stage operation of said instrument and said threestage operation of said cartridge on activation of said trigger means.
Claim 3
Dependent Claim
68 words
The surgical instrument recited in claim 1, wherein at least a portion of each of said first, second and third attachment means lies, at rest, outside said main body portion; and further comprising first rod means integral with said first attachment means, extending from said first attachment means to the rear of said surgical instrument, and associating, at the rear of said surgical instrument, with said linking means.
Claim 4
Dependent Claim
53 words
The surgical instrument recited in claim 2, and further comprising: second rod means integral with said second attachment means, extending from said second attachment means toward the rear of said surgical instrument, and being in the form of a hollow tube extending about and slidably mounted with respect to said first rod means.
Claim 5
Dependent Claim
32 words
The surgical instrument recited in claim 2, wherein said third attachment means is in the form of a carrying ring extending about and slidably mounted with respect to said second rod means.
Claim 6
Dependent Claim
26 words
The surgical instrument recited in claim 4, wherein said first, second and third attachment means are farthest from, intermediate and nearest said main body portion, respectively.
Claim 7
Dependent Claim
28 words
The surgical instrument recited in claim 5, wherein said biasing means comprises, in part, first spring means for biasing said second attachment means toward said main body portion.
Claim 8
Dependent Claim
42 words
The surgical instrument recited in claim 6, wherein said first spring means surrounds said second rod means and abuts, under compression, an inner wall of said main body portion and a flange integral with the rearwardmost end of said second rod means.
Claim 9
Dependent Claim
35 words
The surgical instrument recited in claim 6, wherein said biasing means comprises, in part, second spring means for biasing said third attachment means toward said second attachment means and away from said main body portion
Claim 10
Dependent Claim
34 words
The surgical instrument recited in claim 8, wherein said second spring means surrounds said second rod means and abuts, under compression, said third attachment means and an outer wall of said main boby portion.
Claim 11
Dependent Claim
28 words
The surgical instrument recited in claim 8, wherein said biasing means comprises, in part, third spring means for biasing said second attachment means toward said first attachment means.
Claim 12
Dependent Claim
38 words
The surgical instrument recited in claim 10, wherein said third spring means surrounds said first rod means and abuts, under compression, the rear portion of said first rod means and the rear portion of said second rod means.
Claim 13
Dependent Claim
42 words
The surgical instrument recited in claim 10, wherein the force required to compress said first spring means is greater than the force rEquired to compress said second spring means and is less than the force required to compress said third spring means.
Claim 14
Dependent Claim
21 words
The surgical instrument recited in claim 1, and further comprising: cam means intermediate said first attachment means and said trigger means.
Claim 15
Dependent Claim
59 words
The surgical instrument recited in claim 13, wherein said cam means is variable in a manner so as to respond to the activation of said trigger means by a relatively constant force to deliver to said first attachment means a force substantially equal to the required input force necessary to bring about the three-stage operation of said staple-carrying cartridge.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |