Patent US3014362A successfully refreshed from Google Patents.
US20040006344A1
Expired / Lapsed
US
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Expandable percutaneous sheath
Assignee: Warsaw Orthopedic Inc
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Filing: 2002-07-02
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Granted: —
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Expires: 2022-07-02
Abstract
Abstract Disclosed is an expandable percutaneous sheath, for introduction into the body while in a first, low cross-sectional area configuration, and subsequent expansion to a second, enlarged cross-sectional configuration. The sheath is maintained in the first, low cross-sectional configuration by a removable tubular restraint. In one application, the sheath is utilized to introduce a formed in place orthopedic fixation rod such as for use in spinal fixation procedures.
Inventors
- 👤 Thanh Nguyen
- 👤 George Teitelbaum
- 👤 To Pham
- 👤 Samuel Shaolian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:40
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8872; A61B17/34; A61B17/3417; A61B17/3421; A61B17/3431; A61B17/3439; A61B17/68; A61B17/70; A61B17/7074; A61B17/7083; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61B17/7001; A61B17/00234; A61B2017/00292; A61B2017/00336; A61B2017/00535; A61B2017/00557; A61M25/0021; A61M25/0023; A61M2025/0024
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
60 words
1 . A percutaneous access sheath comprising an elongate tubular structure, at least a portion of said elongate tubular structure being expandable from a first, smaller cross-sectional profile to a second, greater cross-sectional profile, and a releaseable sheath carried by the access sheath to restrain at least a portion of said elongate tubular structure in said first, smaller cross-sectional profile.
Claim 2
Dependent Claim
60 words
1 . A percutaneous access sheath comprising an elongate tubular structure, at least a portion of said elongate tubular structure being expandable from a first, smaller cross-sectional profile to a second, greater cross-sectional profile, and a releaseable sheath carried by the access sheath to restrain at least a portion of said elongate tubular structure in said first, smaller cross-sectional profile.
Claim 3
Dependent Claim
32 words
2 . The percutaneous access sheath of claim 1 , in combination with an inflatable balloon to expand said portion from said first, smaller cross-sectional profile to said second, greater cross-sectional profile.
Claim 4
Dependent Claim
29 words
3 . The percutaneous access sheath of claim 2 , wherein the balloon is carried by a balloon catheter which is axially moveably positionable within the percutaneous access sheath.
Claim 5
Dependent Claim
52 words
4 . A percutaneous access sheath comprising an elongate tubular structure, said elongate tubular structure having a distal section expandable from a first, smaller cross-sectional profile to a second, greater cross-sectional profile, and a releaseable restraint to restrain said distal section of said elongate tubular structure in said first, smaller cross-sectional profile.
Claim 6
Dependent Claim
52 words
4 . A percutaneous access sheath comprising an elongate tubular structure, said elongate tubular structure having a distal section expandable from a first, smaller cross-sectional profile to a second, greater cross-sectional profile, and a releaseable restraint to restrain said distal section of said elongate tubular structure in said first, smaller cross-sectional profile.
Claim 7
Dependent Claim
19 words
5 . The percutaneous access sheath of claim 4 , wherein the releasable restraint comprises a peel away sheath.
Claim 8
Dependent Claim
50 words
6 . A method of providing percutaneous access, said method comprising: percutaneously inserting an elongate tubular structure having a first, smaller cross-sectional profile; removing a tubular restraint from the elongate tubular structure; and expanding said elongate tubular structure from said first, smaller cross-sectional profile to a second, greater cross-sectional profile.
Claim 9
Dependent Claim
50 words
6 . A method of providing percutaneous access, said method comprising: percutaneously inserting an elongate tubular structure having a first, smaller cross-sectional profile; removing a tubular restraint from the elongate tubular structure; and expanding said elongate tubular structure from said first, smaller cross-sectional profile to a second, greater cross-sectional profile.
Claim 10
Dependent Claim
34 words
7 . The method of claim 6 , additionally comprising the step of inflating a balloon to expand said elongate tubular structure from said first, smaller cross-sectional profile to said second, greater cross-sectional profile.
Claim 11
Dependent Claim
27 words
8 . The method of claim 6 , wherein the percutaneously inserting step comprises percutaneously inserting the elongate tubular structure through an aperture in a bone anchor.
Claim 12
Dependent Claim
33 words
9 . The method of claim 6 , wherein the percutaneously inserting step comprises percutaneously inserting the elongate tubular structure through an aperture in an anchor which is attached to a vertebral body.
Claim 13
Dependent Claim
32 words
10 . The method of claim 6 , further comprising the step of introducing an implant through the tubular structure when the tubular structure is in the second, greater cross sectional profile.
Claim 14
Dependent Claim
18 words
11 . The method of claim 10 , wherein the implant comprises a formed in place orthopedic implant.
Claim 15
Dependent Claim
44 words
12 . The method of claim 6 , wherein the percutaneously inserting step comprises percutaneously inserting the elongate tubular structure through at least a first bone anchor attached to a first vertebral body and a second bone anchor attached to a second vertebral body.
Claim 16
Dependent Claim
25 words
13 . The method of claim 7 , wherein the inflating a balloon step is accomplished using a balloon catheter positioned within the tubular body.
Claim 17
Dependent Claim
24 words
14 . The method of claim 7 , further comprising the step of removing the balloon from the tubular structure following the expanding step.
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