US5554101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical retractor
Assignee: United States Surgical Corp
•
Filing: 1994-12-22
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Granted: 1996-09-10
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Expires: 2014-12-22
Abstract
Abstract A surgical retractor is provided including a handle portion, a tubular portion extending from the handle portion, and a collapsible retractor assembly connected to a distal end of the tubular portion. The handle portion includes an actuating structure for manipulating the collapsible retractor assembly through the tubular portion. The retractor assembly includes a plurality of retractor blades, a camming assembly connected to the retractor blades and structure for connecting the retractor blades to the actuating structure.
Inventors
- 👤 Paul A. Matula
- 👤 Stanley H. Remiszewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/32; A61B17/00; A61B17/02; A61B17/0218
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
152 words
A surgical retractor comprising: a) a handle assembly; b) an elongated body extending distally from the handle assembly and defining opposed proximal and distal end portions, a longitudinal axis which extends therethrough, an interior bore, and an exterior wall; c) a blade cavity formed within said elongated body and terminating at a location proximal of the distal end portion thereof and opening through the exterior wall of the elongated body; d) a retractor assembly including a plurality of interleaved blade members disposed within the blade cavity and mounted fear cooperative movement between a first position enclosed within the interior bore of the elongate body and a second position extending radially outwardly from the blade cavity through the exterior wall of the elongated body; and e) an actuator within the handle assembly which is movably attached to the interleaved blade members for controlled movement of said blade members out of the blade cavity.
Claim 2
Dependent Claim
152 words
A surgical retractor comprising: a) a handle assembly; b) an elongated body extending distally from the handle assembly and defining opposed proximal and distal end portions, a longitudinal axis which extends therethrough, an interior bore, and an exterior wall; c) a blade cavity formed within said elongated body and terminating at a location proximal of the distal end portion thereof and opening through the exterior wall of the elongated body; d) a retractor assembly including a plurality of interleaved blade members disposed within the blade cavity and mounted fear cooperative movement between a first position enclosed within the interior bore of the elongate body and a second position extending radially outwardly from the blade cavity through the exterior wall of the elongated body; and e) an actuator within the handle assembly which is movably attached to the interleaved blade members for controlled movement of said blade members out of the blade cavity.
Claim 3
Dependent Claim
29 words
A surgical retractor as recited in claim 1, wherein the blade members are cooperatively mounted to one another and supported within the elongated body by a common pivot pin.
Claim 4
Dependent Claim
25 words
A surgical retractor as recited in claim 1, wherein each of the blade members includes an angled cam slot within which a cam pin translates.
Claim 5
Dependent Claim
40 words
A surgical retractor as recited in claim 3, wherein the actuator includes an actuation shaft which extends from the handle assembly to the cam pin to effect translation thereof with respect to the angled cam slots in the blade members.
Claim 6
Dependent Claim
29 words
A surgical retractor as recited in claim 4, wherein the actuator includes an actuation member mounted for axial rotation with respect to the longitudinal axis of the elongated body.
Claim 7
Dependent Claim
36 words
A surgical retractor as recited in claim 1, wherein the retractor assembly includes first and second pairs of blade members, each pair extending through the exterior wall of the elongated body from diametrically opposed sides thereof.
Claim 8
Dependent Claim
151 words
A surgical retractor for manipulating body tissue during endoscopic surgical procedures comprising: a) a handle assembly; b) an elongated body extending distally from the handle assembly and defining a longitudinal axis; c) a retractor assembly disposed within an open cavity formed within said elongated body and terminating at a location proximal of the distal end portion thereof and opening through the exterior wall of the elongated body, the retractor assembly including at least three cooperating interleaved blade members mounted for movement about a common pivot axis between a closed position in alignment with one another and disposed within the open cavity, and an open position angularly disposed with respect to one another and projecting at least partially from the open cavity; and d) an actuator within the handle assembly which is movably attached to the interleaved blade members for controlled movement of said interleaved blade members out of the open cavity.
Claim 9
Dependent Claim
151 words
A surgical retractor for manipulating body tissue during endoscopic surgical procedures comprising: a) a handle assembly; b) an elongated body extending distally from the handle assembly and defining a longitudinal axis; c) a retractor assembly disposed within an open cavity formed within said elongated body and terminating at a location proximal of the distal end portion thereof and opening through the exterior wall of the elongated body, the retractor assembly including at least three cooperating interleaved blade members mounted for movement about a common pivot axis between a closed position in alignment with one another and disposed within the open cavity, and an open position angularly disposed with respect to one another and projecting at least partially from the open cavity; and d) an actuator within the handle assembly which is movably attached to the interleaved blade members for controlled movement of said interleaved blade members out of the open cavity.
Claim 10
Dependent Claim
29 words
A surgical retractor as recited in claim 7, wherein the blade members are cooperatively mounted to one another and supported within the elongated body by a common pivot pin.
Claim 11
Dependent Claim
25 words
A surgical retractor as recited in claim 7, wherein each of the blade members includes an angled cam slot within which a cam pin translates.
Claim 12
Dependent Claim
40 words
A surgical retractor as recited in claim 9, wherein the actuator includes an actuation shaft which extends from the handle assembly to the cam pin to effect translation thereof with respect to the angled cam slots in the blade members.
Claim 13
Dependent Claim
29 words
A surgical retractor as recited in claim 10, wherein the actuator includes an actuation member mounted for axial rotation with respect to the longitudinal axis of the elongated body.
References Cited (Backward Citations)
FR325846A
Cited
US972983A
Cited
US1244751A
Cited
US1328624A
Cited
US2202748A
Cited
US2816552A
Cited
US3313294A
Cited
US3314431A
Cited
US3467079A
Cited
US4130113A
Cited
SU736949A1
Cited
US4190042A
Cited
US4226228A
Cited
SU990220A1
Cited
US4459978A
Cited
US4655219A
Cited
US4585000A
Cited
US4656999A
Cited
US4559944A
Cited
US4773400A
Cited
US4580568A
Cited
US4654028A
Cited
US4909789A
Cited
US4765311A
Cited
US4688555A
Cited
SU1360708A1
Cited
US5035248A
Cited
US4872456A
Cited
US4945920A
Cited
US4990156A
Cited
EP0380874A1
Cited
US4994079A
Cited
WO1991002493A1
Cited
US5034001A
Cited
US5113846A
Cited
US5098440A
Cited
US5195505A
Cited
US5176700A
Cited
US5178133A
Cited
DE9106506U1
Cited
US5195506A
Cited
US5152279A
Cited
US5245987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |