Patent US3797498A successfully refreshed from Google Patents.
US3797498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivotal surgical clip
Assignee: KERR INSTR Ltd
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Filing: 1972-06-29
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Granted: 1974-03-19
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Expires: 1992-06-29
Abstract
Abstract This invention relates to a surgical clip which may be attached to a blood vessel to block or restrict the flow of blood through the blood vessel. The clip comprises first and second elongated opposed members, pivot means located between the two opposed members which permit relative pivotal movement of the two members in a common plane, adjustable spring means urging the two opposed members to pivot about the pivot means to a closed position, and an enlongated blade member pivotally connected to the forward end of one of the two opposed members. The blade member has one elongated blade surface and the other opposed member has a second matched blade surface, between which the blood vessel is clamped. The fact that the blade member is pivotally connected to one of the opposed members permits the blade member to rotate slightly in the plane of the first and second opposed members to more evenly distribute the compressive force of the spring means across the blood vessel in the closed position. This avoids pinching of one portion of the blood vessel, and substantially reduces the possibility of injury or damage to the blood vessel. One of the blade surfaces has a channel with a uniform concave cross-section extending along a portion of its length. The wall of the clamped blood vessel bulges into the channel to securely laterally retain the clip on the blood vessel. A second embodiment of the invention has lips on opposite ends of one of the blade surfaces to maintain the blade surfaces in a predetermined spaced relationship, in the closed position.
Inventors
- 👤 D Walsh
- 👤 H Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:33
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12009; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
199 words
A surgical clip having a clamped and an open position comprising: a. first and second elongated opposed members each having a forward and a rear end and an outwardly facing surface, the first opposed member having an elongated first flat blade surface adjacent its forward end, the first blade surface inwardly facing the second opposed member; b. pivot means between the opposed members permitting relative pivotal movement of the members in a common plane about a central transverse axis through the pivot means between the open and clamped positions; c. an elongated blade member substantially centrally pivotally connected to the forward end of the second opposed member for pivotal movement relative to the second opposed member in the said common plane, the blade member having a second flat blade surface inwardly facing the first blade surface, said second member being of lesser length than said first member and said pivotally connected elongated blade member being substantially coextensive with said first flat blade surface; and d. adjustable pressure means acting on the opposed members to urge the opposed members to pivot about the pivot means to bring the first and second blade surfaces into a substantially aligned and contacting relationship.
Claim 2
Dependent Claim
199 words
A surgical clip having a clamped and an open position comprising: a. first and second elongated opposed members each having a forward and a rear end and an outwardly facing surface, the first opposed member having an elongated first flat blade surface adjacent its forward end, the first blade surface inwardly facing the second opposed member; b. pivot means between the opposed members permitting relative pivotal movement of the members in a common plane about a central transverse axis through the pivot means between the open and clamped positions; c. an elongated blade member substantially centrally pivotally connected to the forward end of the second opposed member for pivotal movement relative to the second opposed member in the said common plane, the blade member having a second flat blade surface inwardly facing the first blade surface, said second member being of lesser length than said first member and said pivotally connected elongated blade member being substantially coextensive with said first flat blade surface; and d. adjustable pressure means acting on the opposed members to urge the opposed members to pivot about the pivot means to bring the first and second blade surfaces into a substantially aligned and contacting relationship.
Claim 3
Dependent Claim
66 words
A surgical clip as claimed in claim 1 wherein the adjustable pressure means comprises a series of depressions spaced along the outwardly facing surfaces of the opposed members forward of the transverse axis through the pivot means, and a C-shaped spring having two ends, each end of the spring being removably engaged in a respective selected one of the depressions in one of the opposed members.
Claim 4
Dependent Claim
190 words
A surgical clip having a clamped and an open position comprising: a. first and second elongated opposed members each having a forward and a rear end and an outwardly facing surface, the first opposed member having an elongated first flat blade surface adjacent its forward end, the first blade surface inwardly facing the second opposed member; b. pivot means between the opposed members permitting relative pivotal movement of the members in a common plane about a central transverse axis through the pivot means between the open and clamped positions; c. an elongated blade member substantially centrally pivotally connected to the forward end of the second opposed member for pivotal movement relative to the second opposed member in the said common plane, the blade member having a second flat blade surface inwardly facing the first blade surface, at least one of the blade surfaces having a central channel extending along a portion of its length; and d. adjustable pressure means acting on the opposed members to urge the opposed members to pivot about the pivot means to bring the first and second blade surfaces into a substantially aligned and contacting relationship.
Claim 5
Dependent Claim
190 words
A surgical clip having a clamped and an open position comprising: a. first and second elongated opposed members each having a forward and a rear end and an outwardly facing surface, the first opposed member having an elongated first flat blade surface adjacent its forward end, the first blade surface inwardly facing the second opposed member; b. pivot means between the opposed members permitting relative pivotal movement of the members in a common plane about a central transverse axis through the pivot means between the open and clamped positions; c. an elongated blade member substantially centrally pivotally connected to the forward end of the second opposed member for pivotal movement relative to the second opposed member in the said common plane, the blade member having a second flat blade surface inwardly facing the first blade surface, at least one of the blade surfaces having a central channel extending along a portion of its length; and d. adjustable pressure means acting on the opposed members to urge the opposed members to pivot about the pivot means to bring the first and second blade surfaces into a substantially aligned and contacting relationship.
Claim 6
Dependent Claim
16 words
A surgical clip as claimed in claim 3 wherein said channel has a uniform concave cross-section.
Claim 7
Dependent Claim
56 words
A surgical clip as claimed in claim 1, wherein the outwardly facing surface of at least one of the opposed members has an indentation located rearward of the transverse axis through the pivot means adapted to receive a matching projection on a suitable clip adjusting tool to provide for engagement of the clip by the tool.
Claim 8
Dependent Claim
56 words
A surgical clip as claimed in claim 1, wherein the outwardly facing surface of at least one of the opposed members has an indentation located rearward of the transverse axis through the pivot means adapted to receive a matching projection on a suitable clip adjusting tool to provide for engagement of the clip by the tool.
Claim 9
Dependent Claim
89 words
A surgical clip as claimed in claim 1, wherein the outwardly facing surface of at least one of the opposed members has a transverse groove extending at least partially across the said surface rearward of the transverse axis through the pivot means, the groove being adapted to receive a noose of thin flexible material encircling the first and second opposed members to engage the clip, the nose being adapted to be tightened by a suitable noose tightening tool to operate the clip from the clamped to the open position.
Claim 10
Dependent Claim
89 words
A surgical clip as claimed in claim 1, wherein the outwardly facing surface of at least one of the opposed members has a transverse groove extending at least partially across the said surface rearward of the transverse axis through the pivot means, the groove being adapted to receive a noose of thin flexible material encircling the first and second opposed members to engage the clip, the noose being adapted to be tightened by a suitable noose tightening tool to operate the clip from the clamped to the open position.
Claim 11
Dependent Claim
256 words
A surgical clip having a clamped and an open position comprising: a. first and second elongated opposed members each having a forward and a rear end and an outwardly facing surface, the first opposed member having an elongated first flat blade surface adjacent its forward end, the first blade surface inwardly facing the second member; b. pivot means between the opposed members permitting relative pivotal movement of the members in a common plane about a central transverse axis through the pivot means between the open and clamped positions; c. an elongated blade member substantially centrally pivotally connected to the forward end of the second opposed member for pivotal movement relative to the second opposed member in the said common plane, the blade member having a second flat blade surface inwardly facing the first blade surface, each of the first and second blade surfaces having a forward and a rearward end; d. adjustable pressure means acting on the opposed members to urge the opposed members to pivot about the pivot means to bring the first and second blade surfaces into a substantially aligned and contacting relationship; and e. a pair of lips of predetermined length extending inwardly from one of the blade surfaces, one of the lips being located near each of the forward and rearward end of the said one blade surface, the lips adapted to be in bearing contact with the other blade surface when the clamp is in the clamped position to maintain the first and second blade surfaces in a predetermined spaced relationship.
Claim 12
Dependent Claim
256 words
A surgical clip having a clamped and an open position comprising: a. first and second elongated opposed members each having a forward and a rear end and an outwardly facing surface, the first opposed member having an elongated first flat blade surface adjacent its forward end, the first blade surface inwardly facing the second member; b. pivot means between the opposed members permitting relative pivotal movement of the members in a common plane about a central transverse axis through the pivot means between the open and clamped positions; c. an elongated blade member substantially centrally pivotally connected to the forward end of the second opposed member for pivotal movement relative to the second opposed member in the said common plane, the blade member having a second flat blade surface inwardly facing the first blade surface, each of the first and second blade surfaces having a forward and a rearward end; d. adjustable pressure means acting on the opposed members to urge the opposed members to pivot about the pivot means to bring the first and second blade surfaces into a substantially aligned and contacting relationship; and e. a pair of lips of predetermined length extending inwardly from one of the blade surfaces, one of the lips being located near each of the forward and rearward end of the said one blade surface, the lips adapted to be in bearing contact with the other blade surface when the clamp is in the clamped position to maintain the first and second blade surfaces in a predetermined spaced relationship.
Claim 13
Dependent Claim
66 words
A surgical clip as claimed in claim 9 wherein the adjustable pressure means comprises a series of depressions spaced along the outwardly facing surfaces of the opposed members forward of the transverse axis through the pivot means, and a C-shaped spring having two ends, each end of the spring being removably engaged in a respective selected one of the depressions in one of the opposed members.
Claim 14
Dependent Claim
42 words
A surgical clip as claimed in claim 1, wherein the pivot means comprises a roller adapted to be seated in cooperating transverse openings in opposing faces of the opposed members, the roller having means precluding relative lateral movement between the opposed members.
Claim 15
Dependent Claim
42 words
A surgical clip as claimed in claim 9, wherein the pivot means comprises a roller adapted to be Seated in cooperating transverse openings in opposing faces of the opposed members, the roller having means precluding relative lateral movement between the opposed members.
Claim 16
Dependent Claim
43 words
A surgical clip as claimed in claim 1, wherein at least one of said first and second opposed members is undercut adjacent the rear end to permit increased relative pivotal movement of the opposed members about the transverse axis through the pivot means.
Claim 17
Dependent Claim
12 words
A surgical clip as claimed in claim 1, formed of stainless steel.
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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |