Device and method for facilitating hemostasis of a biopsy tract
AssigneeSub-Q, Inc.
InventorsAndrew H. Cragg, Rodney Brenneman, Mark Ashby
Life of this patent
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Abstract
A system including an adaptor and a syringe is used for facilitating hemostasis of a biopsy tract or other puncture wound by injection 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. 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.
Claims20
A system for facilitating hemostasis by delivery of a hydrated sponge pledget, the system comprising:
- a cannula for delivering the sponge in a hydrated state;
- an adaptor connectable to the cannula for hydrating and delivering the sponge to the cannula, the adaptor having a tapered lumen with a large diameter end and a small diameter end, wherein the small diameter end is connectable to the cannula;
- and
- a syringe for injecting fluid into the adaptor to hydrate the sponge within the adaptor.
A method of hydrating a sponge pledget for delivery to a body to facilitate hemostasis, the method comprising:
- positioning a dry sponge pledget in an adaptor;
- covering a second end of the adaptor to prevent expulsion of the pledget and providing a vent in the second end of the adaptor for venting fluid;
- and
- hydrating the sponge by injecting fluid into the adaptor.
A system for delivering a beneficial agent to a patient with an absorbable sponge, the system comprising:
- a sponge including an anti-cancer agent;
- a cannula for delivering the sponge in a hydrated state;
- an adaptor connectable to the cannula for hydrating and delivering the sponge to the cannula;
- and
- a syringe for injecting fluid into the adaptor to hydrated the sponge within the adaptor.
A method of preparing a sponge pledget for delivery to a body to facilitate hemostasis, the method comprising:
- positioning a dry sponge pledget in a first end of an adaptor;
- providing a vent at a second end of the adaptor configured to allow venting of a hydrating fluid while substantially preventing the sponge pledget from passing out of the adaptor through the vent;
- hydrating the sponge pledget;
- and
- moving the sponge pledget to a position adjacent the second end of the adaptor.
Dependencies are inferred from the claim text.