Patent
   D397791
Priority
Aug 30 1996
Filed
Aug 30 1996
Issued
Sep 01 1998
Expiry
Sep 01 2012
Assg.orig
Entity
unknown
7
4
n/a
The ornamental design for a ratchet mechanism for a surgical retractor assembly, as shown and described.

FIG. 1 is a perspective view of a ratchet mechanism for a surgical retractor assembly showing our new design, the toothed ratchet is shown in broken lines for clarity and forms no part of the invention;

FIG. 2 is a perspective view of the ratchet mechanism for a surgical retractor assembly in the open position;

FIG 3 is a perspective view of the ratchet mechanism for a surgical retractor assembly the pawl in closed position;

FIG. 4 is a sectional view taken along line 4--4 in FIG. 1;

FIG. 5 is a sectional view taken along line 5--5 in FIG. 4; and,

FIG. 6 is an exploded perspective view of the ratchet mechanism for a surgical retractor assembly.

Koros, Tibor, Koros, Gabriel

Patent Priority Assignee Title
6312377, Apr 06 2000 ViaMedics, LLC Soft tissue compression shield and method of retracting tissue
6488620, Apr 13 1998 ViaMedics, LLC Self-seating surgical access device
6746396, Apr 13 1999 ViaMedics, LLC Self-seating surgical access device and method of use
6958038, Oct 02 2001 CARDINAL HEALTH CMP 200, INC; Carefusion 2200, Inc Multipositional ratchet device for surgical retractor
D422704, Aug 17 1998 ViaMedics, LLC Surgical access port
D438966, Oct 14 1999 Variable width retractor arm clamp
D455831, May 18 2001 Swift clamp
Patent Priority Assignee Title
4424724, Oct 09 1981 DePuy Orthopaedics, Inc Multi-position ratchet mechanism
5052373, Jul 29 1988 Codman & Shurtleff, Inc Spinal retractor
5375481, Nov 12 1993 ASPEN SURGICAL PRODUCTS, INC Multi-position ratchet mechanism
D361381, Mar 17 1994 Combined spine and sternum retractor frame
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