US6540735B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for facilitating hemostasis of blood vessel punctures with absorbable sponge
Assignee: SUB-O Inc
•
Filing: 2000-05-12
•
Granted: 2003-04-01
•
Expires: 2020-05-12
Abstract
Abstract A system for facilitating hemostasis of a puncture site in a blood vessel delivers 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 staging chamber, a delivery cannula, and a pusher. The staging chamber is used for hydrating a pledget of absorbable sponge, compressing the pledget, and delivering the pledget to the delivery cannula. The staging chamber may include a valve for facilitating hydration and staging of the pledget. The delivery cannula and pusher are used to accurately place the sponge pledget outside the blood vessel. An easy loader connector may be used to facilitate loading the dry pledget into the staging chamber.
Inventors
- 👤 Mark Ashby
- 👤 Luis R. Urquidi
- 👤 Eric Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:14
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B2017/00637; A61B2017/00646; A61B2017/00654
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
105 words
A connector for introducing fluid to a chamber, the connector comprising: a connector body having a central lumen, a first end for connection to an opening in a chamber, and a second end for connection to a syringe; a releaseable coupling for coupling the first end of the connector body to the opening of the chamber; a sealing mechanism for forming a substantially fluid tight seal between the first end of the connector body and the opening of the chamber; and a lock mechanism for preventing the release of the releaseable coupling when a syringe is connected to the second end of the connector body.
Claim 2
Dependent Claim
105 words
A connector for introducing fluid to a chamber, the connector comprising: a connector body having a central lumen, a first end for connection to an opening in a chamber, and a second end for connection to a syringe; a releaseable coupling for coupling the first end of the connector body to the opening of the chamber; a sealing mechanism for forming a substantially fluid tight seal between the first end of the connector body and the opening of the chamber; and a lock mechanism for preventing the release of the releaseable coupling when a syringe is connected to the second end of the connector body.
Claim 3
Dependent Claim
14 words
The connector of claim 1 , wherein the releaseable coupling is a snap fit.
Claim 4
Dependent Claim
21 words
The connector of claim 2 , wherein the releaseable coupling includes two wings which are pressed inward to release the coupling.
Claim 5
Dependent Claim
31 words
The connector of claim 3 , wherein the two wings contact the syringe when the syringe is connected to the second end of the connector body and provide the lock mechanism.
Claim 6
Dependent Claim
13 words
The connector of claim 1 , wherein the sealing mechanism is an O-ring.
Claim 7
Dependent Claim
35 words
The connector of claim 1 , wherein the sealing mechanism is provided by a beveled surface on the first end of the connector which engages a corresponding beveled surface on the opening in the chamber.
Claim 8
Dependent Claim
22 words
The connector of claim 1 , wherein the second end of the connector includes a luer fitting for connection to the syringe.
Claim 9
Independent Claim
111 words
A device for facilitating hemostasis of a puncture in the wall of a blood vessel, the device comprising: a delivery cannula for delivery of a sponge pledget into a patient to seal a puncture; a pusher positioned in a proximal end of the delivery cannula for ejection of the pledget from the delivery cannula into the patient to seal the puncture; and a staging chamber having a first end removably connectable to a distal end of the delivery cannula for hydrating the sponge pledget and delivering the sponge pledget to the delivery cannula, the staging chamber having a lumen diameter which is larger than a lumen diameter of the delivery cannula.
Claim 10
Independent Claim
111 words
A device for facilitating hemostasis of a puncture in the wall of a blood vessel, the device comprising: a delivery cannula for delivery of a sponge pledget into a patient to seal a puncture; a pusher positioned in a proximal end of the delivery cannula for ejection of the pledget from the delivery cannula into the patient to seal the puncture; and a staging chamber having a first end removably connectable to a distal end of the delivery cannula for hydrating the sponge pledget and delivering the sponge pledget to the delivery cannula, the staging chamber having a lumen diameter which is larger than a lumen diameter of the delivery cannula.
Claim 11
Dependent Claim
30 words
The device of claim 8 , wherein the distal end of the staging chamber has tapered lumen for compressing the sponge pledget as it is delivered to the delivery chamber.
Claim 12
Dependent Claim
38 words
The device of claim 8 , further comprising a substantially fluid tight seal between the staging chamber and the delivery cannula for delivery of the sponge pledget from the staging chamber to the delivery cannula by fluid pressure.
Claim 13
Dependent Claim
22 words
The device of claim 8 , wherein the staging chamber includes a valve having a fluid venting position and pledget staging position.
Claim 14
Dependent Claim
23 words
The device of claim 8 , wherein the staging chamber includes a valve having a pledget staging position and a pledget hydrating position.
Claim 15
Dependent Claim
32 words
The device of claim 8 , further comprising a connector at a second end of the staging chamber allowing connection of a syringe to the staging chamber for hydrating the sponge pledget.
Claim 16
Dependent Claim
28 words
The device of claim 13 , wherein the connector is removable from the staging chamber and includes a luer fitting for connecting the syringe to the staging chamber.
Claim 17
Dependent Claim
112 words
A staging system for hydrating a sponge pledget, the system comprising: a staging chamber having an open lumen with a tapered section at a first end; and a connector attachable to a second end of the staging chamber for connecting a syringe to the staging chamber, the connector comprising: a connector body having a central lumen, a first end for connection to the staging chamber, and a second end for connection to a syringe; a releaseable coupling for coupling the first end of the connector body to the staging chamber; and a sealing mechanism for forming a substantially fluid tight seal between the first end of the connector and the staging chamber.
Claim 18
Dependent Claim
112 words
A staging system for hydrating a sponge pledget, the system comprising: a staging chamber having an open lumen with a tapered section at a first end; and a connector attachable to a second end of the staging chamber for connecting a syringe to the staging chamber, the connector comprising: a connector body having a central lumen, a first end for connection to the staging chamber, and a second end for connection to a syringe; a releaseable coupling for coupling the first end of the connector body to the staging chamber; and a sealing mechanism for forming a substantially fluid tight seal between the first end of the connector and the staging chamber.
Claim 19
Dependent Claim
33 words
The staging system of claim 15 , further comprising a lock mechanism for preventing the release of the releaseable coupling when a syringe is connected to the second end of the connector body.
Claim 20
Independent Claim
121 words
A device for facilitating hemostasis of a puncture in the wall of a blood vessel, the device comprising: a delivery cannula for delivery of a sponge pledget into a patient to seal a puncture; a pusher positioned in a proximal end of the delivery cannula for ejection of the pledget from the delivery cannula into the patient to seal the puncture; and a staging chamber having a first end removably connectable to the delivery cannula, the staging chamber having a valve with a first position for hydrating the sponge pledget and a second position for delivering the sponge pledget to the delivery cannula, the staging chamber having a lumen diameter which is larger than a lumen diameter of the delivery cannula.
Claim 21
Independent Claim
121 words
A device for facilitating hemostasis of a puncture in the wall of a blood vessel, the device comprising: a delivery cannula for delivery of a sponge pledget into a patient to seal a puncture; a pusher positioned in a proximal end of the delivery cannula for ejection of the pledget from the delivery cannula into the patient to seal the puncture; and a staging chamber having a first end removably connectable to the delivery cannula, the staging chamber having a valve with a first position for hydrating the sponge pledget and a second position for delivering the sponge pledget to the delivery cannula, the staging chamber having a lumen diameter which is larger than a lumen diameter of the delivery cannula.
Claim 22
Dependent Claim
13 words
The device of claim 17 , wherein the vent is a rotatable stopcock.
Claim 23
Dependent Claim
13 words
The device of claim 17 , wherein the vent is a gate valve.
Claim 24
Dependent Claim
30 words
The device of claim 17 , wherein the valve includes a vent hole for venting fluid from the staging chamber when the vent is in the first position for hydrating.
Claim 25
Dependent Claim
34 words
The device of claim 17 , wherein the vent includes a delivery opening for delivering the sponge pledget through the valve to the delivery cannula when the valve is in second position for delivery.
Claim 26
Dependent Claim
32 words
The device of claim 17 , wherein the valve acts as a cutter when moved from the second position to the first position to cut off a portion of the sponge pledget.
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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) | 2006-03-31 | 2006-09-30 | 2007-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-03-31 | 2010-09-30 | 2011-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-03-31 | 2014-09-30 | 2015-04-01 | $7700.00 | Window Closed / Lapsed |