US3814102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument
Assignee: Individual
•
Filing: 1972-10-12
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Granted: 1974-06-04
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Expires: 1992-10-12
Abstract
Abstract A surgical instrument commonly referred to as an alligator forceps includes a pair of jaws operably connected to a pair of handles by a longitudinally split shank. The lower jaw is rigidly connected to the lower portion of the split shank. The upper jaw is pivotally connected to the forward ends of both the upper and lower shank portions so that the jaws can be opened and closed by longitudinal movement of the shank portions with respect to each other. A forward handle is rigidly connected to the lower shank portion. A flange, connected to the rear of the upper shank portion, extends downwardly to a point below the lower shank portion. A rearward handle is pivotally connected to the lower shank portion and is connected to the flange at a point below the connection to the lower shank to move the flange forwardly and rearwardly. Thus forward and rearward movement of the rearward handle opens and closes the jaws without longitudinal or angular movement of the jaws with respect to the forward handle.
Inventors
- 👤 B Thal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:31
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/29; A61B17/2909; A61B2017/2912; A61B2017/2919; A61B2017/292
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
257 words
In a forceps of the type having a longitudinally divided shank forming a first shank section and a second shank section, said shank having a jaw means mounted at the forward end thereof, said jaw means closing and opening upon longitudinal translational movement of said first and second shank sections relative to each other, the improvement comprising: a first handle rigidly connected to the rearward portion of said first shank section, said first handle extending below said shank and having a finger stall thereon, a projection rigidly connected to and extending rearwardly from said first shank section, a second handle having a finger stall thereon, said second handle positioned rearwardly of said first handle, first means connecting said second handle to said projection for movement toward and away from said first handle, flange means connected to the rearward end of said second shank section, said flange means having a first segment extending downwardly from the rearward end of said second shank section at a location rearwardly of said projection on said first shank section and a second segment connected to said first segment, said second segment projecting in a forward direction under said projection on said first shank section and toward said first handle, second means connecting said second handle to said second segment of said flange means for longitudinally moving said second shank section responsive to movement of said second handle, and means connecting said jaw means to said shank sections for closing said jaws responsive to movement of said second handle toward said first handle.
Claim 2
Dependent Claim
257 words
In a forceps of the type having a longitudinally divided shank forming a first shank section and a second shank section, said shank having a jaw means mounted at the forward end thereof, said jaw means closing and opening upon longitudinal translational movement of said first and second shank sections relative to each other, the improvement comprising: a first handle rigidly connected to the rearward portion of said first shank section, said first handle extending below said shank and having a finger stall thereon, a projection rigidly connected to and extending rearwardly from said first shank section, a second handle having a finger stall thereon, said second handle positioned rearwardly of said first handle, first means connecting said second handle to said projection for movement toward and away from said first handle, flange means connected to the rearward end of said second shank section, said flange means having a first segment extending downwardly from the rearward end of said second shank section at a location rearwardly of said projection on said first shank section and a second segment connected to said first segment, said second segment projecting in a forward direction under said projection on said first shank section and toward said first handle, second means connecting said second handle to said second segment of said flange means for longitudinally moving said second shank section responsive to movement of said second handle, and means connecting said jaw means to said shank sections for closing said jaws responsive to movement of said second handle toward said first handle.
Claim 3
Dependent Claim
24 words
The forceps of claim 1 wherein said first means pivotally connects said second handle to one of said first handle and first shank section.
Claim 4
Dependent Claim
23 words
The forceps of claim 2 wherein said first means pivotally connects said second handle to the rearward portion of said first shank section.
Claim 5
Dependent Claim
13 words
The forceps of claim 3 wherein said second means is a cam means.
Claim 6
Dependent Claim
27 words
The forceps of claim 1, said first shank section comprising the lower portion of said shank, said second shank section comprising the upper portion of said shank.
Claim 7
Dependent Claim
67 words
The forceps of claim 1, said proximal projection having a channel means therein slidably engaging the upper end of said second handle, said second segment having a channel means for slidably engaging the portion of said second handle adjacent said upper end thereof, said first means comprising a pivot pin positioned transversely through aligned apertures in said rearward projection and said upper end of said second handle.
Claim 8
Dependent Claim
38 words
The forceps of claim 6, said cam means comprising a pin secured in a transverse position to the portion of said second handle adjacent said upper end, said pin mating with a cam surface in said second segment.
Claim 9
Dependent Claim
218 words
In a forceps of the type having a longitudinally divided shank forming a first shank section and a second shank section, said shank having a jaw means mounted at the forward end thereof, said jaw means closing and opening upon longitudinal translational movement of said first and second shank sections relative to each other, the improvement comprising: a first handle rigidly connected to the rearward portion of said first shank section, said first handle extending below said shank and having a finger stall thereon, a projection rigidly connected to and extending rearwardly from said first shank section, a second handle having a finger stall thereon, said second handle positioned rearwardly of said first handle, first means connecting said second handle to said projection for movement toward and away from said first handle, flange means connected to the rearward end of said second shank section, said flange means having a segment extending downwardly beside said first shank section and a portion located rearwardly of said first handle, second means connecting said second handle to said portion of said flange means for longitudinally moving said second shank section responsive to movement of said second handle, and means connecting said jaw means to said shank sections for closing said jaws responsive to movement of said second handle toward said first handle.
Claim 10
Dependent Claim
218 words
In a forceps of the type having a longitudinally divided shank forming a first shank section and a second shank section, said shank having a jaw means mounted at the forward end thereof, said jaw means closing and opening upon longitudinal translational movement of said first and second shank sections relative to each other, the improvement comprising: a first handle rigidly connected to the rearward portion of said first shank section, said first handle extending below said shank and having a finger stall thereon, a projection rigidly connected to and extending rearwardly from said first shank section, a second handle having a finger stall thereon, said second handle positioned rearwardly of said first handle, first means connecting said second handle to said projection for movement toward and away from said first handle, flange means connected to the rearward end of said second shank section, said flange means having a segment extending downwardly beside said first shank section and a portion located rearwardly of said first handle, second means connecting said second handle to said portion of said flange means for longitudinally moving said second shank section responsive to movement of said second handle, and means connecting said jaw means to said shank sections for closing said jaws responsive to movement of said second handle toward said first handle.
Claim 11
Dependent Claim
237 words
In a forceps of the type having a longitudinally divided shank forming a first shank section and a second shank section, said shank having a jaw means mounted at the forward end thereof, said jaw means closing and opening upon longitudinal translational movement of said first and second shank sections relative to each other, the improvement comprising: a first handle rigidly connected to the rearward portion of said first shank section, said first handle extending below said shank and having a finger stall thereon, a projection rigidly connected to and extending rearwardly from said first shank section, a second handle having a finger stall thereon, said second handle positioned rearwardly of said first handle, first means connecting said second handle to said projection for movement toward and away from said first handle, said first shank section having a forwardly extending slot positioned forwardly of said first means, flange means connected to the rearward end of said second shank section, said flange means having a portion extending downwardly and rearwardly through said forwardly extending slot to a position below said first means, second means connecting said second handle to said portion of said flange means below said first means for longitudinally moving said second shank section responsive to movement of said second handle, and means connecting said jaw means to said shank sections for closing said jaws responsive to movement of said second handle toward said first handle.
Claim 12
Dependent Claim
237 words
In a forceps of the type having a longitudinally divided shank forming a first shank section and a second shank section, said shank having a jaw means mounted at the forward end thereof, said jaw means closing and opening upon longitudinal translational movement of said first and second shank sections relative to each other, the improvement comprising: a first handle rigidly connected to the rearward portion of said first shank section, said first handle extending below said shank and having a finger stall thereon, a projection rigidly connected to and extending rearwardly from said first shank section, a second handle having a finger stall thereon, said second handle positioned rearwardly of said first handle, first means connecting said second handle to said projection for movement toward and away from said first handle, said first shank section having a forwardly extending slot positioned forwardly of said first means, flange means connected to the rearward end of said second shank section, said flange means having a portion extending downwardly and rearwardly through said forwardly extending slot to a position below said first means, second means connecting said second handle to said portion of said flange means below said first means for longitudinally moving said second shank section responsive to movement of said second handle, and means connecting said jaw means to said shank sections for closing said jaws responsive to movement of said second handle toward said first handle.
Claim 13
Dependent Claim
240 words
In a forceps of the type having a longitudinally divided shank forming a first shank section and a second shank section, said shank having a jaw means mounted at the forward end thereof, said jaw means closing upon forward longitudinal translational movement of said second shank section relative to said first shank section and opening upon rearward longitudinal translational movement of said second shank section relative to said first shank section, the improvement comprising: a first handle rigidly connected to the rearward portion of said first shank section to form a rigid handle and shank unit, said first handle extending below said shank and having a finger stall thereon, a second handle having an upper portion and a lower portion and having a finger stall on the lower portion thereof, said second handle positioned rearwardly of said first handle, first pivot means pivotally connecting the upper portion of said second handle to said rigid handle and shank unit for swinging movement toward and away from said first handle, a downwardly extending flange means fixed to the rearward portion of said second shank section, said downwardly extending flange means having a portion thereof positioned below the location of said first pivot means, and second means movably connecting said second handle to said portion of said downwardly extending flange means for moving said second shank section longitudinally forwardly responsive to forward swinging movement of said second handle about said first pivot means.
Claim 14
Dependent Claim
240 words
In a forceps of the type having a longitudinally divided shank forming a first shank section and a second shank section, said shank having a jaw means mounted at the forward end thereof, said jaw means closing upon forward longitudinal translational movement of said second shank section relative to said first shank section and opening upon rearward longitudinal translational movement of said second shank section relative to said first shank section, the improvement comprising: a first handle rigidly connected to the rearward portion of said first shank section to form a rigid handle and shank unit, said first handle extending below said shank and having a finger stall thereon, a second handle having an upper portion and a lower portion and having a finger stall on the lower portion thereof, said second handle positioned rearwardly of said first handle, first pivot means pivotally connecting the upper portion of said second handle to said rigid handle and shank unit for swinging movement toward and away from said first handle, a downwardly extending flange means fixed to the rearward portion of said second shank section, said downwardly extending flange means having a portion thereof positioned below the location of said first pivot means, and second means movably connecting said second handle to said portion of said downwardly extending flange means for moving said second shank section longitudinally forwardly responsive to forward swinging movement of said second handle about said first pivot means.
Claim 15
Dependent Claim
13 words
The forceps of claim 10 wherein said second means is a cam means.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |