US4430991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical retractor stay device and tube connector
Assignee: CooperSurgical Inc
•
Filing: 1981-11-05
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Granted: 1984-02-14
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Expires: 2001-11-05
Abstract
Abstract A surgical retractor stay with a tissue holding hook affixed to the elastic hollow tubing member of the stay by a retaining member having a body in which the hook shank is embedded with the sharp end of the hook extending from one end of the body and a stud with a tapered knob on its outer end extending outwardly from the other end of the retaining member body, the size and configuration of the knob and stud being such as to be tightly retained within an end portion of the hollow tubing stretchingly installed thereover; and a surgical tube connector for joining a pair of hollow elastic surgical tube members having an elongated stud with tapered knobs at each end in which the stud and knobs are dimensioned for tight fitting containment within the end portions of the hollow tube members stretchingly installed thereover.
Inventors
- 👤 W. Dale Darnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/0293; A61B2017/0287
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
146 words
A surgical retractor stay comprising: a retaining member having a body portion, an elongated stud portion extending from one end of said body portion, and an enlarged knob portion on the end of said elongated stud portion opposite said body portion; a hook member having a sharp hooked end and having a shank portion embedded within said retaining member body portion with said sharp hooked end protruding from the end thereof opposite said enlongated stud portion; and a length of hollow tubing having one end extending over said retaining member knob portion and at least a part of said retaining member stud portion; said retaining member knob portion and stud portion and the internal diameter of said hollow tubing being dimensioned for tight fitting containment and retention of said hollow tubing on said knob portion and stud portion when said hollow tubing is stretchingly installed thereover.
Claim 2
Dependent Claim
146 words
A surgical retractor stay comprising: a retaining member having a body portion, an elongated stud portion extending from one end of said body portion, and an enlarged knob portion on the end of said elongated stud portion opposite said body portion; a hook member having a sharp hooked end and having a shank portion embedded within said retaining member body portion with said sharp hooked end protruding from the end thereof opposite said enlongated stud portion; and a length of hollow tubing having one end extending over said retaining member knob portion and at least a part of said retaining member stud portion; said retaining member knob portion and stud portion and the internal diameter of said hollow tubing being dimensioned for tight fitting containment and retention of said hollow tubing on said knob portion and stud portion when said hollow tubing is stretchingly installed thereover.
Claim 3
Dependent Claim
63 words
The stay of claim 1 wherein said knob portion tapers outwardly from a minimum dimension at the forward end thereof opposite the juncture of said knob portion with said stud portion to a rear end of maximum diameter substantially greater than that of said stud portion and wherein said stud portion has a greater diameter than the internal diameter of said hollow tubing.
Claim 4
Dependent Claim
46 words
The stay of claim 2 wherein the rearward most surface of said knob portion, extending between said stud portion and said knob portion maximum circumference, establishes an abrupt change of direction at its juncture with the knob portion surface forward of said knob portion maximum circumference.
Claim 5
Dependent Claim
28 words
The stay of claim 3 wherein said knob portion is a body of revolution having a smoothly rounded forward end tapering outwardly to said knob portion maximum circumference.
Claim 6
Dependent Claim
23 words
The stay of claims 2 or 3 wherein said retaining member knob portion, stud portion and body portion are an integral, solid mass.
Claim 7
Dependent Claim
210 words
A surgical retractor comprising a generally annular frame, contoured to the body portion on which surgery is to be performed with the frame having notches spaced apart around its periphery, and a plurality of stays, each of said stays including: a retaining member having a body portion, an elongated stud portion extending from one end of said body portion, and an enlarged knob portion on the end of said elongated stud portion opposite said body portion; a hook member having a sharp hooked end and having a shank portion embedded within said retaining member body portion with said sharp hooked end protruding from the end thereof opposite said enlongated stud portion; and a length of hollow tubing having one end extending over said retaining member knob portion and at least a part of said retaining member stud portion; said retaining member knob portion and stud portion and the internal diameter of said hollow tubing being dimensioned for tight fitting containment and retention of said hollow tubing on said knob portion and stud portion when said hollow tubing is stretchingly installed thereover; the notches of said frame and the external diameter of said tubing being dimensioned for frictional retention of said tubing within said notches when said tubing is inserted therein.
Claim 8
Dependent Claim
210 words
A surgical retractor comprising a generally annular frame, contoured to the body portion on which surgery is to be performed with the frame having notches spaced apart around its periphery, and a plurality of stays, each of said stays including: a retaining member having a body portion, an elongated stud portion extending from one end of said body portion, and an enlarged knob portion on the end of said elongated stud portion opposite said body portion; a hook member having a sharp hooked end and having a shank portion embedded within said retaining member body portion with said sharp hooked end protruding from the end thereof opposite said enlongated stud portion; and a length of hollow tubing having one end extending over said retaining member knob portion and at least a part of said retaining member stud portion; said retaining member knob portion and stud portion and the internal diameter of said hollow tubing being dimensioned for tight fitting containment and retention of said hollow tubing on said knob portion and stud portion when said hollow tubing is stretchingly installed thereover; the notches of said frame and the external diameter of said tubing being dimensioned for frictional retention of said tubing within said notches when said tubing is inserted therein.
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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) | 1987-02-13 | 1987-08-15 | 1988-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-13 | 1991-08-15 | 1992-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-13 | 1995-08-15 | 1996-02-14 | $7700.00 | Window Closed / Lapsed |