Patent US490269A successfully refreshed from Google Patents.
Patent EP0796593A2 successfully refreshed from Google Patents.
EP0796593A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and instrumentation for surgical implant insertion
Assignee: Howmedica Osteonics Corp
•
Filing: 1997-03-13
•
Granted: —
•
Expires: 2017-03-13
Abstract
Abstract A surgical retractor including a sleeve member having two opposed retractor arms (20) at its distal end portion. By inserting the retractor arms of the retractor within a space defined between adjacent bony structures, first and second supporting surfaces (20a, 20b) of each retractor arm respectively engage the opposed structures thereby distracting the structures, for performing a surgical procedure. A method for inserting a spinal implant is also disclosed. Instrumentation for performing the procedure is also disclosed.
Inventors
- 👤 Charles J. Winslow
- 👤 Steven T. Mitchell
- 👤 Kirk Jayne
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 08:24
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/17; A61B17/1739; A61B17/1757; A61B17/02; A61B17/025; A61B17/1662; A61B17/1671; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/446; A61F2/46; A61F2/4603; A61F2/4611; A61B2017/0256; A61B90/00; A61B90/03; A61B2090/033; A61B2090/034; A61F2/30721; A61F2/30744; A61F2/442; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30108; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2002/30316; A61F2002/30329; A61F2002/30476; A61F2002/30479; A61F2002/30487; A61F2002/305; A61F2002/30505; A61F2002/30535; A61F2002/30593; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/30787; A61F2002/3085; A61F2002/448; A61F2002/4625; A61F2002/4627; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0063; A61F2230/0069
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
A surgical retractor instrument comprising an elongated member having proximal and distal end portions and defining a longitudinal passageway for reception of surgical instrumentation, the distal end portion having first and second retractor arms extending in a general longitudinal direction, each retractor arm having first and second supporting surfaces for engaging opposed adjacent tissue portions, each retractor arm defining a dimension between the first and second supporting surfaces sufficient to distract the opposed tissue portions upon insertion thereof
Claim 2
Dependent Claim
21 words
The surgical retractor according to claim 1 wherein the first and second supporting surfaces of each retractor arm are substantially planar.
Claim 3
Dependent Claim
25 words
The surgical retractor according to claim 1 or 2 wherein each retractor arm has a tapered end portion for facilitating insertion into the intervertebral space.
Claim 4
Dependent Claim
79 words
A surgical retractor for use in distracting adjacent vertebrae, the retractor comprising: an elongate body having a proximal end and a distal end and defining a longitudinal passageway therebetween; and first and second retractor arms extending longitudinally from the distal end of the elongate body, each retractor arm defining a first vertebra supporting surface and a second vertebra supporting surface, the first and second vertebra supporting surfaces of each retractor arm being spaced thereon at a predetermined distraction distance.
Claim 5
Dependent Claim
23 words
The surgical retractor according to claim 4 wherein the retractor arms each possess distal tapered portions for facilitating insertion into the intervertebral space.
Claim 6
Dependent Claim
25 words
The surgical retractor according to claim 4 or 5 wherein the first and second supporting surfaces of each retractor arm are in general parallel relation.
Claim 7
Dependent Claim
31 words
The surgical retractor according to claim 6 wherein the first and second supporting surfaces of each retractor arm are in general parallel relation to a longitudinal axis of the elongate body.
Claim 8
Dependent Claim
27 words
The surgical retractor according to any one of the preceding claims wherein the elongate body includes at least one longitudinal opening defined in an intermediate wall portion.
Claim 9
Dependent Claim
74 words
A surgical tapping instrument for tapping an internal thread within a bore defined in bony tissue, comprising an elongated frame defining a longitudinal axis and having a distal tapping head, the tapping head including a tapping thread for tapping a thread within the bony structure and at least one conveyance channel dimensioned to collect bone material removed during the tapping procedure, the one conveyance channel having a directional component transverse to the longitudinal axis.
Claim 10
Dependent Claim
17 words
The surgical tapping instrument according to claim 9 wherein the one conveyance channel is a helical groove.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.