US4226228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple joint retractor with light
Assignee: Individual
•
Filing: 1978-11-02
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Granted: 1980-10-07
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Expires: 1998-11-02
Abstract
Abstract A surgical implement is disclosed for performing in combination a retracting and illuminating function within body cavities formed during surgery. The retraction function is performed by a blade, which can be segmented for flexible bending, mounted generally at right angles to a support shaft manipulatable by a handle. Miniature lamps present in the blade and powered by small batteries located in the handle perform the illumination function within the body cavity around which the retraction function is simultaneously performed.
Inventors
- 👤 Hee J. Shin
- 👤 Jung H. Shin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:06
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/32; A61B1/06; A61B1/0615; A61B1/0661; A61B1/0676; A61B17/00; A61B17/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
111 words
A surgical retractor for use within a surgical cavity, the retractor comprising retracting means and illuminating means, said retracting means comprising an inward surface and an outward surface, said outward surface conformingly contacting said cavity, said illuminating means comprising a plurality of electric lamps held in electrical contact by mounting means located upon said inward surface for directing illumination within said cavity, said mounting means being connected by electrical conductor means to a source of electric power, said retracting means comprising a plurality of flexible segments adjustably connected at pivotal connecting joints so as to afford a different pattern of illumination and a different contour for conformance with the surgical cavity.
Claim 2
Dependent Claim
111 words
A surgical retractor for use within a surgical cavity, the retractor comprising retracting means and illuminating means, said retracting means comprising an inward surface and an outward surface, said outward surface conformingly contacting said cavity, said illuminating means comprising a plurality of electric lamps held in electrical contact by mounting means located upon said inward surface for directing illumination within said cavity, said mounting means being connected by electrical conductor means to a source of electric power, said retracting means comprising a plurality of flexible segments adjustably connected at pivotal connecting joints so as to afford a different pattern of illumination and a different contour for conformance with the surgical cavity.
Claim 3
Dependent Claim
28 words
The surgical retractor of claim 1, wherein said retracting means is an elongated blade rigidly attached to a straight shaft affixed at its distal end to a handle.
Claim 4
Dependent Claim
27 words
The surgical retractor of claim 2, wherein said blade projects outwardly from said shaft, and said inward surface has a concave curvature substantially along its longitudinal extent.
Claim 5
Dependent Claim
50 words
The surgical retractor of claim 3, wherein said mounting means comprises a corresponding plurality of electrical sockets, said source of electric power is a dry cell battery, and said conductor means is an insulated electric wire connecting said sockets in circuit with a manual switch and said dry cell battery.
Claim 6
Dependent Claim
29 words
The surgical retractor of claim 4, wherein said blade and said shaft comprise a return leg for conduction of electric current between said sockets and said dry cell battery.
Claim 7
Dependent Claim
15 words
The surgical retractor of claim 1 wherein said joints comprise a manually flexible bridging material.
Claim 8
Dependent Claim
23 words
The surgical retractor of claim 6 wherein said bridging material is selected from a metal in the group consisting of aluminum and tin.
Claim 9
Dependent Claim
15 words
The surgical retractor of claim 7 wherein said segments are welded to said bridging material.
Claim 10
Dependent Claim
47 words
The surgical retractor of claim 6 wherein said plurality of segments comprises spaced transverse rigid segments containing said mounting means, said segments being linked together by said flexible bridging material, said rigid segments and bridging material forming a continuous surface at all contours of said retracting means.
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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) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |