US4393872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspirating surgical forceps
Assignee: EDER INSTRUMENT CO Inc
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Filing: 1980-05-27
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Granted: 1983-07-19
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Expires: 2000-05-27
Abstract
Abstract A surgical forceps is provided having the ability, in addition to the normal grasping function, to simultaneously aspirate a liquid from a surgical site. An inner tubular member has a plurality of prongs and is slidably disposed within a tubular body. The inner tubular member is spring loaded so as to hold the prongs in a normally retracted position substantially within the body. A center channel extends throughout the instrument enabling liquids to be aspirated. The prongs diverge as they are extended by forward movement of the inner tubular member and converge upon retraction.
Inventors
- 👤 Benjamin Reznik
- 👤 Stanley Welber
- 👤 Ludwig Streifeneder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:11
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/06; A61B17/00; A61B17/22; A61B17/221; A61B17/28; A61B17/29; A61B2017/2215; A61B17/30; A61B2017/303; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
183 words
Surgical forceps capable of simultaneously aspirating liquids from a surgical site while grasping objects such as bone chips floating in said liquid, said forceps comprising: (a) an elongate tubular body defining a channel which terminates at one end of said body to define a mouth; (b) at least three springy prongs having inwardly bent distal ends; (c) an actuating means disposed within the body for retracting said prongs substantially within the mouth of the channel and for extending said prongs outwardly from said mouth, said prongs diverging during outward extension and converging during retraction; (d) a spring means cooperating with said actuating means for normally maintaining the prongs in a retracted position; and (e) communication means within said body for allowing liquids to be aspirated from a surgical site through said mouth and channel while said prongs are extended, while said prongs are in said retracted position and while said prongs are intermediate said extended and retracted positions, whereby liquids are aspirated such that objects floating in the liquid are drawn towards the mouth facilitating the capture of such objects with said prongs.
Claim 2
Dependent Claim
183 words
Surgical forceps capable of simultaneously aspirating liquids from a surgical site while grasping objects such as bone chips floating in said liquid, said forceps comprising: (a) an elongate tubular body defining a channel which terminates at one end of said body to define a mouth; (b) at least three springy prongs having inwardly bent distal ends; (c) an actuating means disposed within the body for retracting said prongs substantially within the mouth of the channel and for extending said prongs outwardly from said mouth, said prongs diverging during outward extension and converging during retraction; (d) a spring means cooperating with said actuating means for normally maintaining the prongs in a retracted position; and (e) communication means within said body for allowing liquids to be aspirated from a surgical site through said mouth and channel while said prongs are extended, while said prongs are in said retracted position and while said prongs are intermediate said extended and retracted positions, whereby liquids are aspirated such that objects floating in the liquid are drawn towards the mouth facilitating the capture of such objects with said prongs.
Claim 3
Dependent Claim
28 words
The forceps according to claim 1 wherein the inwardly bent ends of the prongs converge during retraction to abut adjacent prong ends before said ends reach said mouth.
Claim 4
Dependent Claim
51 words
The forceps according to claim 2 wherein the expanse across the abutted ends of the prongs is greater than the expanse of said mouth, whereby the ends of the prongs act as a stop to prevent the ends of the prongs from being retracted by said spring means within the mouth.
Claim 5
Dependent Claim
30 words
The forceps according to claim 2 wherein said bent ends of the prongs have a configuration which enables said liquid to be aspirated even during abutment of the adjacent ends.
Claim 6
Dependent Claim
25 words
The forceps according to claim 2 wherein four equally spaced prongs converge during retraction to abut adjacent prong ends before said ends reach said mouth.
Claim 7
Dependent Claim
19 words
The forceps according to claim 1 wherein said actuating means comprises a tube slidably disposed within said elongate body.
Claim 8
Dependent Claim
15 words
The forceps according to claim 6 wherein said prongs are integrally formed from said tube.
Claim 9
Dependent Claim
40 words
The forceps according to claim 1 wherein said spring means comprises at least one resilient metal strap having one end fixedly mounted with respect to the tubular body and the other end fixedly mounted with respect to the actuating means.
Claim 10
Dependent Claim
40 words
The forceps according to claim 8 further comprising a second metal strap mounted generally opposite said one metal strap to said tubular body and actuating means, said one strap and said second strap defining a handle for holding said forceps.
Claim 11
Dependent Claim
44 words
The forceps according to claim 1 wherein said communication means comprises a straight central channel which extends the length of said body, and an outlet port at the other end of said body connected to said central channel for removing the aspirated liquids therefrom.
Claim 12
Dependent Claim
27 words
The forceps according to claim 1 wherein the tubular body, prongs, actuating means, spring means, and communication means are made of a material which can withstand autoclaving.
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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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |