Patent US6447534B2 successfully refreshed from Google Patents.
US6447534B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for facilitating hemostasis of a biopsy tract
Assignee: Boston Scientific Scimed Inc
•
Filing: 2001-03-13
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Granted: 2002-09-10
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Expires: 2021-03-13
Abstract
Abstract A system including an adaptor and a syringe is used for facilitating hemostasis of a biopsy tract or other puncture wound by delivery of an absorbable sponge in a hydrated state into the wound. The adaptor includes a tapered lumen for hydrating and compressing the relatively large absorbable sponge for delivery through a relatively small cannula, such as a biopsy needle. The hydrated absorbable sponge is injected through the biopsy needle into the biopsy tract by fluid. Alternatively, the sponge may be delivered to the biopsy needle by injection of fluid and then delivered to the biopsy tract by a plunger or stylet. The system may also include a trail staging chamber for inspecting a condition of the sponge before delivery. The implanted absorbable sponge facilitates hemostasis at the biopsy site or other puncture wound and minimizes the chance of internal bleeding. The absorbable sponge material is absorbed by the body over time.
Inventors
- 👤 Andrew H. Cragg
- 👤 Rodney Brenneman
- 👤 Mark Ashby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:39
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B10/00; A61B10/02; A61B10/0233; A61B2017/00004; A61B2017/00637; A61B2017/00646; A61B2017/00654
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
83 words
A method of delivering a hemostatic material for facilitating hemostasis of a puncture wound, the method comprising: inserting the hemostatic material having a continuous structure into an adapter; connecting the adapter to a trail staging chamber and injecting the hemostatic material from the adapter into the trail staging chamber to form a continuous trail of hemostatic material; connecting the trail staging chamber to a cannula; and delivering the continuous trail of hemostatic material through the cannula to facilitate hemostasis of the puncture wound.
Claim 2
Independent Claim
83 words
A method of delivering a hemostatic material for facilitating hemostasis of a puncture wound, the method comprising: inserting the hemostatic material having a continuous structure into an adapter; connecting the adapter to a trail staging chamber and injecting the hemostatic material from the adapter into the trail staging chamber to form a continuous trail of hemostatic material; connecting the trail staging chamber to a cannula; and delivering the continuous trail of hemostatic material through the cannula to facilitate hemostasis of the puncture wound.
Claim 3
Dependent Claim
28 words
The method according to claim 1 , further comprising a step of elongating the hemostatic material as it passes through the adapter and into the trail staging chamber.
Claim 4
Dependent Claim
33 words
The method according to claim 1 , further comprising connecting a removable vent cap to the trail staging chamber prior to injecting the hemostatic material from the adapter into the trail staging chamber.
Claim 5
Dependent Claim
27 words
The method according to claim 3 , further comprising a step of injecting a fluid until a distal end of the hemostatic material contacts the vent cap.
Claim 6
Dependent Claim
27 words
The method according to claim 4 , further comprising a step of expelling the hemostatic material if gaps or spaces are viewed in the trail staging chamber.
Claim 7
Dependent Claim
32 words
The method according to claim 5 , further comprising a step of expelling the hemostatic material by removing the vent cap, and injecting a new hemostatic material into the trail staging chamber.
Claim 8
Dependent Claim
25 words
The method according to claim 4 , further comprising a step of removing the vent cap and connecting the trail staging chamber to the cannula.
Claim 9
Dependent Claim
34 words
The method according to claim 1 , further comprising a step of delivering the continuous trail to a biopsy tract, wherein the cannula through which the hemostatic material is delivered is a biopsy needle.
Claim 10
Dependent Claim
20 words
The method according to claim 1 , further comprising a step of delivering the continuous trail to an arterial site.
Claim 11
Dependent Claim
14 words
The method according to claim 1 , wherein the trail staging chamber is transparent.
Claim 12
Dependent Claim
25 words
The method according to claim 1 , wherein the trail of hemostatic material is delivered to the puncture wound by a plunger within the cannula.
Claim 13
Dependent Claim
20 words
The method according to claim 11 , further comprising a step of delivering the hemostatic material by withdrawing the cannula.
Claim 14
Dependent Claim
20 words
The method according to claim 1 , wherein the hemostatic material is hydrated before delivery and expands rapidly upon delivery.
Claim 15
Dependent Claim
14 words
The method according to claim 1 , wherein the hemostatic material is mechanically stable.
Claim 16
Dependent Claim
18 words
The method according to claim 1 , where in the hemostatic material is a gelatin based sponge material.
Claim 17
Dependent Claim
18 words
The method according to claim 1 , wherein the hemostatic material is delivered for cosmetic or reconstructive bulking.
Claim 18
Dependent Claim
16 words
The method according to claim 1 , wherein the hemostatic material is delivered for intravascular embolization.
Claim 19
Dependent Claim
18 words
The method according to claim 1 , wherein the hemostatic material is used to deliver a beneficial agent.
Claim 20
Dependent Claim
18 words
The method according to claim 1 , wherein the hemostatic material is used to deliver a therapeutic agent.
Claim 21
Dependent Claim
17 words
The method according to claim 1 , wherein the hemostatic material having continuous structure is a sponge.
Claim 22
Independent Claim
62 words
A method of staging a pledget of a sponge in a cannula for delivery to a puncture would, the method comprising; inserting the pledget of a sponge into an adapter having a tapered lumen; and connecting the adapter to a trail staging chamber and injecting the pledget from the adapter into the trail staging chamber to form a continuous trail of pledget.
Claim 23
Independent Claim
62 words
A method of staging a pledget of a sponge in a cannula for delivery to a puncture would, the method comprising; inserting the pledget of a sponge into an adapter having a tapered lumen; and connecting the adapter to a trail staging chamber and injecting the pledget from the adapter into the trail staging chamber to form a continuous trail of pledget.
Claim 24
Dependent Claim
36 words
The method according to claim 1 , further comprising a step of: connecting the trail staging chamber to a cannula; and advancing the pledget into the cannula for delivery to the puncture wound to facilitate hemostasis.
Claim 25
Dependent Claim
28 words
The method according to claim 1 , further comprising a step of hydrating the pledget in the adapter before delivery of the pledget to the trail staging chamber.
Claim 26
Dependent Claim
20 words
The method according to claim 1 , further comprising a step of hydrating the pledget in the trail staging chamber.
Claim 27
Dependent Claim
23 words
The method according to claim 1 , further comprising a step of positioning the pledget in the trail staging chamber by fluid pressure.
Claim 28
Dependent Claim
21 words
The method according to claim 1 , further comprising a step of positioning the pledget within a transparent trail staging chamber.
Claim 29
Dependent Claim
20 words
The method according to claim 1 , further comprising a step of viewing the pledget in the trail staging chamber.
Claim 30
Dependent Claim
33 words
The method according to claim 1 , further comprising a step of positioning the pledget within the trail staging chamber using a removable vent cap configured to engage one end of the adapter.
Claim 31
Dependent Claim
23 words
The method according to claim 1 , further comprising a step of positioning the pledget within the trail staging chamber using a syringe.
Claim 32
Independent Claim
75 words
A method of delivering a continuous trail of hemostatic material for facilitating hemostasis of a puncture wound, the method comprising: delivering the hemostatic material having a continuous structure without gaps or spaces into a cannula with fluid pressure to form a continuous trail of sponge material; and delivering the continuous trail of hemostatic material from the cannula to the puncture wound while maintaining continuity of the hemostatic material to facilitate hemostasis of the puncture wound.
Claim 33
Independent Claim
75 words
A method of delivering a continuous trail of hemostatic material for facilitating hemostasis of a puncture wound, the method comprising: delivering the hemostatic material having a continuous structure without gaps or spaces into a cannula with fluid pressure to form a continuous trail of sponge material; and delivering the continuous trail of hemostatic material from the cannula to the puncture wound while maintaining continuity of the hemostatic material to facilitate hemostasis of the puncture wound.
Claim 34
Dependent Claim
22 words
The method of claim 30 , wherein the hemostatic material is delivered to the cannula from an adaptor having a tapered lumen.
Claim 35
Dependent Claim
25 words
The method of claim 30 , wherein the hemostatic material is delivered from the cannula to the puncture wound by a plunger within the cannula.
Claim 36
Dependent Claim
20 words
The method according to claim 30 , wherein the hemostatic material is hydrated before delivery and expands rapidly upon delivery.
Claim 37
Dependent Claim
14 words
The method according to claim 30 , wherein the hemostatic material is mechanically stable.
Claim 38
Dependent Claim
17 words
The method according to claim 30 , wherein the hemostatic material is a gelatin based sponge material.
Claim 39
Dependent Claim
14 words
The method according to claim 30 , wherein the hemostatic material is a sponge.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-09-09 | 2006-03-11 | 2006-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-09 | 2010-03-11 | 2010-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-09 | 2014-03-11 | 2014-09-10 | $7700.00 | Window Closed / Lapsed |