Patent US5320639A successfully refreshed from Google Patents.
US5320639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vascular plug delivery system
Assignee: Boston Scientific Scimed Inc
•
Filing: 1993-03-12
•
Granted: 1994-06-14
•
Expires: 2013-03-12
Abstract
Abstract A vascular plug delivery system for in vivo delivery of a vascular plug to the site of a puncture in a blood vessel. The device utilizes flashback to ensure that the plug is properly positioned adjacent the puncture prior to delivery of such plug, thereby ensuring complete hemostasis of the puncture.
Inventors
- 👤 James J. Rudnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:02
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61L; A61L31/00; A61L31/04; A61L31/043; A61L31/044; A61B2017/00004
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
89 words
A device for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel in which a guidewire has been inserted, comprising: a cannula capable of passing over a guidewire and having sufficient length and dimension to enter a blood vessel puncture; a vascular plug disposed in a delivery position over the outside diameter of said cannula; and means carried by the cannula for retaining said plug at a vessel puncture site during withdrawal of said cannula from the site of the puncture.
Claim 2
Independent Claim
89 words
A device for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel in which a guidewire has been inserted, comprising: a cannula capable of passing over a guidewire and having sufficient length and dimension to enter a blood vessel puncture; a vascular plug disposed in a delivery position over the outside diameter of said cannula; and means carried by the cannula for retaining said plug at a vessel puncture site during withdrawal of said cannula from the site of the puncture.
Claim 3
Dependent Claim
54 words
The device according to claim 1, wherein said cannula is introduced into said blood vessel through a tissue channel, and wherein said plug has a shaped forward end which facilitates introduction of said device by gradually dilating said tissue channel from a diameter corresponding to said cannula to a diameter corresponding to said plug.
Claim 4
Dependent Claim
20 words
The device according to claim 2, wherein said plug is provided with a coating for facilitating entry of said device.
Claim 5
Dependent Claim
15 words
The device according to claim 2, wherein said plug is made of a swellable material.
Claim 6
Dependent Claim
15 words
The device according to claim 2, wherein said plug is made of a compressible material.
Claim 7
Dependent Claim
15 words
The device according to claim 2, wherein said plug is made of a resorbable material.
Claim 8
Dependent Claim
13 words
The device according to claim 2, wherein said plug is made of collagen.
Claim 9
Dependent Claim
47 words
The device according to claim 1, further comprising a guidewire, and wherein said guidewire has an outside diameter less than the inside diameter of said cannula whereby flashback of blood occurs in a flow space between said guidewire and said cannula when said cannula enters said puncture.
Claim 10
Dependent Claim
29 words
The device according to claim 8, wherein the ratio between the outside diameter of said guidewire and the inside diameter of said cannula is from about 1:1.1 to 1:1.7.
Claim 11
Dependent Claim
26 words
The device according to claim 9, wherein the ratio between the outside diameter of said guidewire and the inside diameter of said cannula is about 1:1.35.
Claim 12
Dependent Claim
17 words
The device according to claim 10, wherein said guidewire has an outside diameter of about 0.035 inches.
Claim 13
Independent Claim
107 words
A device for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel in which a guidewire has been inserted, comprising: a cannula capable of passing over a guidewire and having sufficient length and dimension to enter a blood vessel puncture; a vascular plug disposed in a delivery position over the outside diameter of said cannula; a housing adapted to slide over said cannula and having sufficient space therein to accommodate said vascular plug; and means carried by the cannula for retaining said plug at a vessel puncture site during withdrawal of said housing and said cannula from said site.
Claim 14
Independent Claim
107 words
A device for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel in which a guidewire has been inserted, comprising: a cannula capable of passing over a guidewire and having sufficient length and dimension to enter a blood vessel puncture; a vascular plug disposed in a delivery position over the outside diameter of said cannula; a housing adapted to slide over said cannula and having sufficient space therein to accommodate said vascular plug; and means carried by the cannula for retaining said plug at a vessel puncture site during withdrawal of said housing and said cannula from said site.
Claim 15
Dependent Claim
21 words
The device according to claim 12, wherein said housing is configured to protect and facilitate delivery of said plug during delivery.
Claim 16
Dependent Claim
34 words
The device according to claim 13, wherein said housing includes a front end portion designed to open upon the application of force thereto and allow delivery of said plug to said vessel puncture site.
Claim 17
Dependent Claim
24 words
The device according to claim 14, wherein said front end is beveled at an angle with respect to an axis passing through said cannula.
Claim 18
Dependent Claim
23 words
The device according to claim 14, wherein said housing includes a flange attached to its rearward end to facilitate withdrawal of said housing.
Claim 19
Dependent Claim
23 words
The device according to claim 12, wherein said means for retaining is a plug retaining tube concentric with and circumferentially surrounding said cannula.
Claim 20
Dependent Claim
36 words
The device according to claim 17, wherein said retaining tube has an outside diameter less than the inside diameter of said housing so that said retaining tube may slide within said housing and contact said plug.
Claim 21
Dependent Claim
23 words
The device according to claim 12, wherein said vascular plug is manufactured from a material that expands outward upon release from said housing.
Claim 22
Dependent Claim
16 words
The device according to claim 12, wherein said vascular plug is manufactured from an resorbable material.
Claim 23
Dependent Claim
14 words
The device according to claim 12 wherein said vascular plug is made of collagen.
Claim 24
Dependent Claim
19 words
The device according to claim 12, further comprising a hub assembly connected to the rear portion of said cannula.
Claim 25
Dependent Claim
36 words
The device according to claim 12, further comprising a guidewire, and wherein said guidewire has a diameter less than the inside diameter of said cannula whereby flashback of blood occurs when said cannula enters said puncture.
Claim 26
Dependent Claim
29 words
The device according to claim 23, wherein the ratio between the outside diameter of said guidewire and the inside diameter of said cannula is from about 1:1.1 to 1:1.7.
Claim 27
Dependent Claim
26 words
The device according to claim 24, wherein the ratio between the outside diameter of said guidewire and the inside diameter of said cannula is about 1:1.35.
Claim 28
Dependent Claim
17 words
The device according to claim 25, wherein said guidewire has an outside diameter of about 0.035 inches.
Claim 29
Independent Claim
96 words
A method for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel comprising: advancing a cannula having a plug disposed over its outside diameter to a vessel puncture site over a guidewire previously positioned in said vessel until said cannula enters said vessel and a flashback of blood is observed whereby it may be determined that said plug is positioned proximal said vessel puncture site; depositing said plug in a position proximal said vessel puncture site; and withdrawing said guidewire and said cannula from said vessel puncture site.
Claim 30
Independent Claim
96 words
A method for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel comprising: advancing a cannula having a plug disposed over its outside diameter to a vessel puncture site over a guidewire previously positioned in said vessel until said cannula enters said vessel and a flashback of blood is observed whereby it may be determined that said plug is positioned proximal said vessel puncture site; depositing said plug in a position proximal said vessel puncture site; and withdrawing said guidewire and said cannula from said vessel puncture site.
Claim 31
Dependent Claim
16 words
The method according to claim 27, further comprising a housing adapted to slide over said cannula.
Claim 32
Dependent Claim
44 words
The method according to claim 28, wherein said housing surrounding said plug is first withdrawn from said vessel puncture site, and wherein said guidewire is thereafter withdrawn from said vessel puncture site, and wherein said cannula is thereafter withdrawn from said vessel puncture site.
Claim 33
Dependent Claim
43 words
The method according to claim 28, wherein said cannula is first withdrawn from said vessel puncture site, wherein said housing surrounding said plug is thereafter withdrawn from said vessel puncture site, and wherein said guidewire is thereafter withdrawn from said vessel puncture site.
Claim 34
Dependent Claim
43 words
The method according to claim 28, wherein said housing surrounding said plug is first withdrawn from said vessel puncture site, wherein said cannula is thereafter withdrawn from said vessel puncture site, and wherein said guidewire is thereafter withdrawn from said vessel puncture site.
References Cited (Backward Citations)
US4536178A
Cited
US4650459A
Cited
US4852568A
Cited
US5192302A
Cited
US5192300A
Cited
US5221259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-13 | 2005-12-13 | 2006-06-14 | $7700.00 | Window Closed / Lapsed |