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.
Claims30
A system for facilitating hemostasis of a puncture wound by injecting an absorbable sponge, the system comprising:
- a cannula for delivering the absorbable sponge in a hydrated state to the puncture wound;
- an adaptor connectable to the cannula for hydrating and delivering the absorbable 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 absorbable sponge within the adaptor, and to deliver the absorbable sponge through the cannula.
An adaptor for delivering a hydrated absorbable sponge to a cannula for facilitating hemostasis of a puncture wound, the adaptor comprising:
- an elongated member having a first end, a second end, and a lumen extending from the first end to the second end;
- a luer connector provided at the second end for connection to a cannula;
- and
- a tapered section of the lumen tapering from a first diameter at the first end to a second diameter at the second end which is smaller than the first diameter such that a dry sponge pledget having a width larger than the second diameter is compressible when hydrated into the second diameter.
A method of facilitating hemostasis of a puncture wound by injecting an absorbable sponge through a cannula into the puncture wound, the method comprising:
- inserting a pledget of the absorbable sponge into an adaptor having a tapered lumen with a large diameter end and a small diameter end;
- hydrating the pledget by injection of fluid into the adaptor;
- connecting the adaptor to a cannula;
- and
- delivering the hydrated absorbable sponge through the cannula to facilitate hemostasis of the puncture wound.
A method of facilitating hemostasis of a biopsy tract comprising:
- removing a tissue biopsy through a cannula;
- and
- injecting a hydrated absorbable sponge pledget through the cannula without fully removing the cannula from the biopsy tract to facilitate hemostasis of the biopsy tract.
A kit for facilitating hemostasis of a puncture wound comprising:
- a pledget forming device;
- an adaptor connectable to a cannula for hydrating and delivering an absorbable sponge pledget to the cannula, the adapter 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 connectable to the adaptor for delivering fluid to the adaptor.
An adaptor preloaded with an absorbable sponge pledget comprising:
- an elongated member having a first end, a second end, and a lumen extending from the first end to the second end, wherein the first end of the adaptor has a larger internal diameter than the second end of the adaptor;
- and
- an elongated pledget of absorbable sponge material loaded within the elongated member.
A system for facilitating hemostasis of a puncture wound by injecting an absorbable sponge, the system comprising:
- a cannula for delivering the absorbable sponge in a hydrated state to the puncture wound;
- an adaptor connectable to the cannula for hydrating and delivering the absorbable 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;
- a syringe for injecting fluid into the adaptor to hydrate the absorbable sponge within the adaptor, and to deliver the absorbable sponge through the cannula;
- and
- a cutting template for cutting a pledget of the absorbable sponge from a sheet of absorbable sponge material in a size suitable for delivery through the adaptor and the cannula.
A system for facilitating hemostasis of a puncture wound by injecting an absorbable sponge, the system comprising:
- a cannula for delivering the absorbable sponge in a hydrated state to the puncture wound;
- an adaptor connectable to the cannula for hydrating and delivering the absorbable 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;
- a syringe for injecting fluid into the adaptor to hydrate the absorbable sponge within the adaptor, and to deliver the absorbable sponge through the cannula;
- and
- a punching device for cutting a pledget of the absorbable sponge from a sheet of the absorbable sponge material in a size suitable for delivery through the adaptor and the cannula.
Dependencies are inferred from the claim text.