US6527734B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for facilitating hemostasis of blood vessel punctures with absorbable sponge
Assignee: Boston Scientific Scimed Inc
•
Filing: 2001-08-07
•
Granted: 2003-03-04
•
Expires: 2021-08-07
Abstract
Abstract A system for facilitating hemostasis of a puncture site in a blood vessel injects an absorbable sponge pledget in a hydrated state to a position at an exterior of the blood vessel puncture to facilitate hemostasis. The system includes a tract dilator for locating the puncture, an introducer, and a pusher. The introducer includes a staging chamber for receiving the absorbent sponge pledget and a delivery chamber having a diameter smaller than a diameter of the staging chamber into which a hydrated pledget passes. The pledget is hydrated and compressed within the introducer and then ejected with the pusher to the delivery site to facilitate hemostasis of the blood vessel puncture. The system delivers the absorbable sponge pledget over a guidewire to ensure the proper positioning of the pledget over the puncture. The implanted absorbable sponge once delivered expands rapidly to fill the target site and is absorbed by the body over time.
Inventors
- 👤 Andrew M. Cragg
- 👤 Rodney Brenneman
- 👤 Mark Ashby
- 👤 Eduardo Chi Sing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:12
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/26; A61B2017/00004; A61B17/00234; A61B2017/00362; A61B2017/00367; A61B2017/00407; A61B2017/00637; A61B2017/00646; A61B2017/00654; A61B2017/00831; A61B2017/00898; A61F2013/00361; A61F2013/00365; A61F2013/00463
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
120 words
A device for facilitating hemostasis of a puncture in the wall of a blood vessel, the device comprising: an introducer for compressing a sponge pledget for delivery into a patient to seal the puncture, the introducer including a staging chamber with a first diameter configured to receive the sponge pledget, a delivery chamber with a second diameter smaller than the first diameter, and a tapered section between the staging chamber and the delivery chamber for compressing the pledget, wherein the introducer is a two part system having separate staging and delivery chambers; and a pusher insertable into the introducer for ejection of the pledget from the delivery chamber into a patient to seal the puncture in the blood vessel wall.
Claim 2
Independent Claim
120 words
A device for facilitating hemostasis of a puncture in the wall of a blood vessel, the device comprising: an introducer for compressing a sponge pledget for delivery into a patient to seal the puncture, the introducer including a staging chamber with a first diameter configured to receive the sponge pledget, a delivery chamber with a second diameter smaller than the first diameter, and a tapered section between the staging chamber and the delivery chamber for compressing the pledget, wherein the introducer is a two part system having separate staging and delivery chambers; and a pusher insertable into the introducer for ejection of the pledget from the delivery chamber into a patient to seal the puncture in the blood vessel wall.
Claim 3
Dependent Claim
24 words
The device according to claim 1 , wherein the staging chamber comprises a distal end connectable to a proximal end of the delivery chamber.
Claim 4
Dependent Claim
21 words
The device according to claim 2 , wherein the staging chamber and the delivery chamber are connectable by a luer fitting.
Claim 5
Dependent Claim
22 words
The device according to claim 3 , wherein the staging chamber has a length shorter than a length of the delivery chamber.
Claim 6
Dependent Claim
29 words
The device according to claim 2 , further comprising a template attached to the staging chamber for cutting a piece of a sponge sheet for formation of the pledget.
Claim 7
Dependent Claim
62 words
The device according to claim 2 , further comprising a vent cap configured to be received on a distal end of the staging chamber for use during hydration of the pledget within the staging chamber, the vent cap having a vent hole sized to allow fluid to pass through the vent hole without allowing the pledget to pass through the vent hole.
Claim 8
Dependent Claim
40 words
The device according to claim 6 , wherein the vent cap includes a vent finger configured to extend into the distal end of the staging chamber to block passage of the pledget to the distal end of the staging chamber.
Claim 9
Dependent Claim
24 words
The device according to claim 1 , further comprising a template for cutting a piece of a sponge sheet for formation of the pledget.
Claim 10
Dependent Claim
28 words
The device according to claim 1 , further comprising a depth indicating member positioned on an exterior of the introducer and movable longitudinally with respect to the introducer.
Claim 11
Dependent Claim
60 words
The device according to claim 1 , further comprising a vent cap configured to be received on a distal end of the introducer for axially locating the pledget with respect to the introducer, the vent cap having a vent hole sized to allow fluid to pass through the vent hole without allowing the pledget to pass through the vent hole.
Claim 12
Dependent Claim
28 words
The device according to claim 10 , wherein the vent cap includes a dome shaped interior for positioning the pledget distally of the distal end of the introducer.
Claim 13
Dependent Claim
30 words
The device according to claim 1 , wherein the pusher includes a lumen for insertion of a guidewire and a distal end of the pusher lumen has a funnel shape.
Claim 14
Dependent Claim
21 words
The device according to claim 1 , wherein the pusher includes a proximal stop for limiting proximal motion of the pusher.
Claim 15
Dependent Claim
46 words
The device according to claim 13 , wherein the pusher includes a sliding fitting for connection to a proximal end of the introducer and the proximal stop limits proximal motion of the pusher once the fitting has been connected to the proximal end of the introducer.
Claim 16
Dependent Claim
49 words
The device according to claim 14 , wherein the plunger includes a fixed luer fitting at a proximal end which is connectable to the sliding fitting after the pledget has been delivered allowing the introducer and plunger to be used together to apply local compression to the delivered pledget.
Claim 17
Dependent Claim
13 words
The device according to claim 13 , wherein the proximal stop is adjustable.
Claim 18
Dependent Claim
18 words
The device according to claim 16 , wherein the proximal stop includes ratchet teeth and a ratchet tab.
Claim 19
Dependent Claim
22 words
The device according to claim 13 , wherein the proximal stop includes a detent for engaging a corresponding member of the introducer.
Claim 20
Independent Claim
134 words
A device for facilitating hemostasis of a puncture in the wall of a blood vessel, the device comprising: a staging chamber for hydrating a sponge pledget in preparation for delivery of the pledget into a patient to seal the puncture, a distal end of the staging chamber having a tapered lumen; a delivery chamber for delivering the hydrated sponge pledget to the puncture, a proximal end of the delivery chamber connectable to the distal end of the staging chamber for delivery of the pledget from the staging chamber to the delivery chamber wherein the staging chamber and the delivery chamber is a two part system; and a pusher insertable into the delivery chamber for ejection of the pledget from the delivery chamber into a patient to seal the puncture in the blood vessel wall.
Claim 21
Independent Claim
134 words
A device for facilitating hemostasis of a puncture in the wall of a blood vessel, the device comprising: a staging chamber for hydrating a sponge pledget in preparation for delivery of the pledget into a patient to seal the puncture, a distal end of the staging chamber having a tapered lumen; a delivery chamber for delivering the hydrated sponge pledget to the puncture, a proximal end of the delivery chamber connectable to the distal end of the staging chamber for delivery of the pledget from the staging chamber to the delivery chamber wherein the staging chamber and the delivery chamber is a two part system; and a pusher insertable into the delivery chamber for ejection of the pledget from the delivery chamber into a patient to seal the puncture in the blood vessel wall.
Claim 22
Dependent Claim
35 words
The device of claim 19 , wherein the staging chamber has a lumen with a first diameter and the delivery chamber has a lumen with a second diameter which is smaller than the first diameter.
Claim 23
Dependent Claim
41 words
The device of claim 19 , further comprising a first vent cap configured to be connected to a distal end of the staging chamber and a second vent cap configured to be connected to a distal end of the delivery chamber.
References Cited (Backward Citations)
US2899362A
Cited
US581235A
Cited
US1578517A
Cited
US2086580A
Cited
US2465357A
Cited
US2492458A
Cited
US2507244A
Cited
US2558395A
Cited
US2597011A
Cited
US2680442A
Cited
US2814294A
Cited
US2824092A
Cited
US2761446A
Cited
US3157524A
Cited
GB1509023A
Cited
US4000741A
Cited
GB1569660A
Cited
US4218155A
Cited
US4588395A
Cited
US4900303A
Cited
US4211323A
Cited
US4323072A
Cited
US4340066A
Cited
US4390018A
Cited
US4645488A
Cited
US4515637A
Cited
US4619913A
Cited
US4619261A
Cited
US4587969A
Cited
US4744364A
Cited
US4852568A
Cited
US4890612A
Cited
US4950234A
Cited
US4829994A
Cited
US4850960A
Cited
US4790819A
Cited
US4936835A
Cited
US5195988A
Cited
US5080655A
Cited
US5053046A
Cited
US4929246A
Cited
US5192301A
Cited
US5007895A
Cited
US5061274A
Cited
US5021059A
Cited
US5725498A
Cited
US5741223A
Cited
US5830130A
Cited
US5391183A
Cited
US5591204A
Cited
US5437631A
Cited
US5591205A
Cited
US5478352A
Cited
US5275616B1
Cited
US5192300A
Cited
US5601602A
Cited
US5108421A
Cited
US5716375A
Cited
US5275616A
Cited
US5167624A
Cited
US5366480A
Cited
US5419765A
Cited
US5221259A
Cited
US5310407A
Cited
US6007563A
Cited
US5163904A
Cited
US5220926A
Cited
US5540715A
Cited
US5334216A
Cited
US5558853A
Cited
US5467780A
Cited
US5388588A
Cited
US5479936A
Cited
US5383896A
Cited
US5325857A
Cited
US5486195A
Cited
US5431639A
Cited
US5665107A
Cited
US5383899A
Cited
US5529577A
Cited
US5653730A
Cited
US5649547A
Cited
US5775333A
Cited
US5526822A
Cited
US5545178A
Cited
US5522850A
Cited
US5490736A
Cited
US5645566A
Cited
US6071300A
Cited
US5769086A
Cited
US5902310A
Cited
US5810806A
Cited
US5681279A
Cited
US5782861A
Cited
US5984950A
Cited
US5868762A
Cited
US6071301A
Cited
US6086607A
Cited
US6162192A
Cited
US6183497B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-03-03 | 2006-09-02 | 2007-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-03-03 | 2010-09-02 | 2011-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-03-03 | 2014-09-02 | 2015-03-04 | $7700.00 | Window Closed / Lapsed |