US5720757A
Expired / Lapsed
US
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Apparatus and method for positive closure of an internal tissue membrane opening
Assignee: Indiana University Research and Technology Corp
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Filing: 1995-06-06
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Granted: 1998-02-24
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Expires: 2015-06-06
Abstract
Abstract The invention provides a device having two components: a needle advancing apparatus slidable longitudinally along a catheter to advance needles into a tissue membrane, such as a blood vessel wall, around an opening in the membrane; and, a suture retrieval assembly insertable through the catheter beyond a distal side of the tissue membrane. The needle advancing apparatus advances suture through the tissue wall. The suture retrieval assembly grabs the suture on the distal side of the tissue membrane for extraction thereof through the opening in the tissue membrane. A method for suturing a membrane beneath the patient's skin is also disclosed.
Inventors
- 👤 David Hathaway
- 👤 Brian Patton
- 👤 Keith L. March
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:40
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0469; A61B17/0057; A61B2017/00637; A61B2017/00646; A61B2017/00663; A61B2017/00668; A61B2017/00982; A61B2017/00986; A61B17/28; A61B17/29; A61B2017/2901; A61B2017/2905
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
94 words
A method for closure of an opening in a membrane of a blood vessel, the membrane having a distal side and proximal side, said method comprising: introducing simultaneously at least two needles in a distal direction through an opening in the skin above the blood vessel opening; advancing simultaneously the two needles through the blood vessel membrane at two suture locations adjacent the blood vessel opening to form penetrations; positioning suture material through the penetrations to span the opening in the blood vessel membrane; and drawing the suture locations together with said suture material.
Claim 2
Independent Claim
94 words
A method for closure of an opening in a membrane of a blood vessel, the membrane having a distal side and proximal side, said method comprising: introducing simultaneously at least two needles in a distal direction through an opening in the skin above the blood vessel opening; advancing simultaneously the two needles through the blood vessel membrane at two suture locations adjacent the blood vessel opening to form penetrations; positioning suture material through the penetrations to span the opening in the blood vessel membrane; and drawing the suture locations together with said suture material.
Claim 3
Dependent Claim
21 words
A method as in claim 1, wherein the suture material spans the distal side of the opening in a continuous length.
Claim 4
Dependent Claim
22 words
A method as in claim 1, wherein the suture material is positioned through the penetrations by at least one of the needles.
Claim 5
Dependent Claim
67 words
A method as in claim 3, wherein the positioning step comprises: introducing suture material in a distal direction through a first penetration at a first suture location; capturing an end of the suture material on the distal side of the blood vessel membrane; and pulling the captured end of the length of suture through a second membrane penetration at a second suture location in a proximal direction.
Claim 6
Independent Claim
131 words
A method for closure of an opening in a membrane of a blood vessel, the membrane having a distal side and a proximal side, said method comprising: advancing a first needle through an opening in the skin above the opening in the blood vessel membrane to penetrate the membrane adjacent the opening to form a first suture location; advancing a second needle through the opening in the skin above the opening in the blood vessel membrane to penetrate the membrane adjacent the opening to form a second suture location wherein the first and second needles are penetrated simultaneously through the blood vessel membrane; positioning suture material through the first and second penetrations to span the distal side of the blood vessel opening; drawing the suture locations together with said suture material.
Claim 7
Independent Claim
131 words
A method for closure of an opening in a membrane of a blood vessel, the membrane having a distal side and a proximal side, said method comprising: advancing a first needle through an opening in the skin above the opening in the blood vessel membrane to penetrate the membrane adjacent the opening to form a first suture location; advancing a second needle through the opening in the skin above the opening in the blood vessel membrane to penetrate the membrane adjacent the opening to form a second suture location wherein the first and second needles are penetrated simultaneously through the blood vessel membrane; positioning suture material through the first and second penetrations to span the distal side of the blood vessel opening; drawing the suture locations together with said suture material.
Claim 8
Dependent Claim
31 words
A method as in claim 5, wherein the positioning step comprises pulling the suture material from the first suture location through the second suture location and proximally through the skin opening.
Claim 9
Dependent Claim
21 words
A method as in claim 6, wherein the suture material is positioned through the first suture location by the first needle.
Claim 10
Independent Claim
104 words
A method for closure of an opening in a membrane of a blood vessel, the membrane having a distal side and a proximal side, said method comprising: introducing suture material through a first penetration in the blood vessel membrane adjacent to the opening therein; introducing a suture loop through a second penetration in the blood vessel membrane adjacent to the opening therein; capturing a free end of the suture material; pulling the free end of the suture material through a second penetration in the blood vessel wall to span the distal side of the opening; and drawing the penetrations together with the suture material.
Claim 11
Independent Claim
104 words
A method for closure of an opening in a membrane of a blood vessel, the membrane having a distal side and a proximal side, said method comprising: introducing suture material through a first penetration in the blood vessel membrane adjacent to the opening therein; introducing a suture loop through a second penetration in the blood vessel membrane adjacent to the opening therein; capturing a free end of the suture material; pulling the free end of the suture material through a second penetration in the blood vessel wall to span the distal side of the opening; and drawing the penetrations together with the suture material.
Claim 12
Dependent Claim
36 words
A method as in claim 8, wherein the suture material introducing step comprises advancing a needle to form the first penetration and simultaneously introducing the suture material to the distal side of the blood vessel membrane.
Claim 13
Dependent Claim
23 words
A method as in claim 9, wherein the capturing step comprises threading the free end of the suture material through the suture loop.
Claim 14
Dependent Claim
36 words
A method as in claim 10, wherein the suture loop introducing step comprises advancing a needle to form the second penetration and simultaneously introducing the suture loop to the distal side of the blood vessel membrane.
Claim 15
Dependent Claim
30 words
A method as in claim 10, wherein the pulling step comprises pulling the suture loop proximally through the second penetration to carry the free end of the suture material therewith.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-02-23 | 2001-08-25 | 2002-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-23 | 2005-08-25 | 2006-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-23 | 2009-08-25 | 2010-02-24 | $7700.00 | Window Closed / Lapsed |