US4760848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotational surgical instrument
Assignee: Cook Urological Inc
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Filing: 1986-11-03
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Granted: 1988-08-02
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Expires: 2006-11-03
Abstract
Abstract An instrument according to the present invention comprises a casing, an exposed working head with an associated movable element, an actuating link slidably mounted relative to the casing for moving the element and an actuator mechanism with a control portion for sliding the actuating link. The actuating link is biased slidably in a first direction relative to the casing which urges the jaws, blades, etc. to a closed position. Upon radially depressing the control portion, the actuator mechanism causes the actuating link to move against the spring bias slidably in a direction opposite to the first direction. Structure is provided to selectively lock the jaws on the working head in an open position. Successive depressions of the control portion of the actuator mechanism alternatingly lock the jaws open and closed. Because the jaws are urged to a closed position, the user does not have to maintain constant closing pressure during use yet the user has the ability to easily lock the jaws in an open position.
Inventors
- 👤 Harrith M. Hasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:23
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/29; A61B17/2909; A61B17/04; A61B17/06; A61B17/062; A61B17/2812; A61B17/2833; A61B17/0469; A61B2017/0475; A61B2017/2912; A61B2017/2918
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
113 words
An improved instrument of the type having a longitudinal casing, an exposed working head with an associated element that is moveable between an open position and a closed position, an actuating link slidably mounted relative to the longitudinal casing for moving said element selectively between said open and closed positions, and an actuator mechanism for sliding said actuating link, the improvement comprising: means biasing the actuating link so that the working head element is urged towards said closed position, said actuator mechanism including means responsive to a laterally directed force to move the actuating link against a force exerted by the biasing means to move the working head element toward said open position.
Claim 2
Dependent Claim
113 words
An improved instrument of the type having a longitudinal casing, an exposed working head with an associated element that is moveable between an open position and a closed position, an actuating link slidably mounted relative to the longitudinal casing for moving said element selectively between said open and closed positions, and an actuator mechanism for sliding said actuating link, the improvement comprising: means biasing the actuating link so that the working head element is urged towards said closed position, said actuator mechanism including means responsive to a laterally directed force to move the actuating link against a force exerted by the biasing means to move the working head element toward said open position.
Claim 3
Dependent Claim
21 words
The improved instrument according to claim 1 wherein means are provided to lock the working head element in said open position.
Claim 4
Dependent Claim
41 words
The improved instrument according to claim 1 wherein said casing has a cylindrical portion defining a handle for holding the instrument and said actuator mechanism has a control portion projecting radially through the cylindrical casing portion for operating the actuator mechanism.
Claim 5
Dependent Claim
58 words
The improved instrument according to claim 1 wherein said casing has a cylindrical portion with an opening therein, said actuator mechanism has a control portion projecting radially through the opening for operating the actuator mechanism upon said control portion being moved laterally in relation to the casing and a resilient member is disposed sealingly over the casing opening.
Claim 6
Dependent Claim
68 words
The improved instrument according to claim 1 wherein said actuator mechanism has a portion that is rotated incrementally upon the actuator mechanism being operated and in a first rotational position of said actuator mechanism portion said working head element is locked in said open position and in a second rotational position of said actuator mechanism portion the biasing means urge the working head element towards its closed position.
Claim 7
Dependent Claim
42 words
The improved instrument according to claim 1 wherein said casing has a cylindrical portion, said cylindrical casing portion has axially spaced ends and said actuator mechanism has a control portion that projects radially from the casing between the axially spaced ends thereof.
Claim 8
Dependent Claim
129 words
An improved surgical instrument of the type having a casing, an exposed working element having the type having a casing, an exposed working element having at least one pivotable jaw, an actuating link slidably mounted relative to the casing for pivoting said jaw, and an actuator mechanism for sliding said actuating link, the improvement comprising: means for biasing the actuating link slidably in a first direction so that the jaw is biased towards a closed position; said actuator mechanism including means responsive to a laterally directed force to move the actuating link against a force exerted by the biasing means in a second direction opposite to the first direction and for moving the jaw to an open position; and means for selectively locking the jaw in an open position.
Claim 9
Dependent Claim
129 words
An improved surgical instrument of the type having a casing, an exposed working element having the type having a casing, an exposed working element having at least one pivotable jaw, an actuating link slidably mounted relative to the casing for pivoting said jaw, and an actuator mechanism for sliding said actuating link, the improvement comprising: means for biasing the actuating link slidably in a first direction so that the jaw is biased towards a closed position; said actuator mechanism including means responsive to a laterally directed force to move the actuating link against a force exerted by the biasing means in a second direction opposite to the first direction and for moving the jaw to an open position; and means for selectively locking the jaw in an open position.
Claim 10
Dependent Claim
40 words
The improved surgical instrument according to claim 7 wherein said actuator structure has a portion that is movable relative to the casing and said actuator structure portion and casing have cooperating means to maintain the jaw in the open position.
Claim 11
Dependent Claim
67 words
The improved surgical instrument according to claim 7 wherein said casing has a cylindrical configuration with an open end, the jaw is adjacent said open end, means mount the actuating link for guided sliding movement within the casing and said actuator mechanism has a control portion that is movable laterally inwardly in relation to the casing to cause said actuating link to move in said second direction.
Claim 12
Dependent Claim
89 words
The improved surgical instrument according to claim 7 wherein said casing has a cylindrical portion, the actuator mechanism has a portion that is rotatable about the casing axis between a first position wherein the actuator mechanism portion cooperates with the housing to maintain the jaw in an open position and a second position wherein the biasing means causes the jaw to be urged towards its closed position and means are provided to incrementally rotate the actuator mechanism portion between the first and second positions of the actuator mechanism portion.
Claim 13
Dependent Claim
30 words
The improved surgical instrument according to claim 9 wherein the control portion comprises a spring element that is deflectable radially of the casing to effect movement of the actuating link.
Claim 14
Dependent Claim
43 words
The improved surgical instrument according to claim 9 wherein said casing has axially spaced ends and the control portion resides axially between the spaced casing ends so that the casing can be grasped adjacent one end for facilitated operation of the control portion.
Claim 15
Dependent Claim
113 words
An improved instrument of the type having a casing, an exposed working head with an associated movable element that is movable between an open position and a closed position, an actuating link slidably mounted relative to the casing for moving said element and an actuator mechanism for sliding said actuating link, the improvement comprising: said casing having a cylindrical portion defining a handle for holding the instrument; and said actuator mechanism having a control portion responsive to a laterally directed force to move the actuating link and the associated movable element, whereby a user can grasp the cylindrical casing portion and move the control portion with one hand to operate the movable element.
Claim 16
Dependent Claim
113 words
An improved instrument of the type having a casing, an exposed working head with an associated movable element that is movable between an open position and a closed position, an actuating link slidably mounted relative to the casing for moving said element and an actuator mechanism for sliding said actuating link, the improvement comprising: said casing having a cylindrical portion defining a handle for holding the instrument; and said actuator mechanism having a control portion responsive to a laterally directed force to move the actuating link and the associated movable element, whereby a user can grasp the cylindrical casing portion and move the control portion with one hand to operate the movable element.
Claim 17
Dependent Claim
22 words
The improved instrument according to claim 13 wherein said cylindrical portion has an opening and the control portion projects through said opening.
Claim 18
Dependent Claim
33 words
The improved instrument according to claim 13 wherein said movable element has a closed position and an open position and means bias the movable element towards the closed position for the movable element.
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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) | 1991-08-02 | 1992-02-01 | 1992-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-02 | 1996-02-01 | 1996-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-02 | 2000-02-01 | 2000-08-02 | $7700.00 | Window Closed / Lapsed |