Method and apparatus to promote hemostasis
View Patent ↗Apparatus and methods for promoting hemostasis are provided. The apparatuses and methods have particular applicability with tissue puncture closure devices for sealing percutaneous punctures in arteries. In one embodiment, an apparatus for promoting hemostasis a tube having at least one indentation for holding a hemostatic substance. In further embodiments, the apparatus may further include a carrier tube for forming a lid for the indentation, a retractable sheath for forming a lid for the indentation, or a cover for forming a lid of the indentation. In an alternative embodiment the apparatus for promoting hemostasis comprises a suture provided with a hemostatic substance.
1. A tissue puncture closure device for partial insertion into and sealing of an internal tissue wall puncture, the tissue puncture closure device comprising:
a carrier tube having a proximal end and a distal end;
a filament extending from the distal end of the carrier tube to the proximal end of the carrier tube;
an anchor for insertion through the tissue wall puncture attached to the filament, the anchor being disposed proximate the distal end of the carrier tube;
a sealing plug slidingly attached to the filament, the sealing plug being disposed proximate the distal end of the carrier tube;
a tamping tube for tamping or cinching the sealing plug toward the second end, the tamping tube being configured for insertion in the carrier tube;
wherein the tissue puncture closure device further comprises an apparatus for promoting hemostasis comprising an indentation formed on a lateral surface of the tamping tube, the indentation having a reservoir to hold a hemostatic substance during insertion of the puncture closure device and delivery of the hemostatic substance.
2. The tissue puncture closure device of claim 1 , wherein the carrier tube is sized for receiving the tamping tube, wherein the indentation is exposed and the hemostatic substance released when the tamping tube extends distally from the carrier tube.
3. The tissue puncture closure device of claim 1 , further comprising a hemostatic substance provided with the filament.
4. The tissue puncture closure device of claim 3 , wherein the filament is impregnated with the hemostatic substance.
5. The tissue puncture closure device of claim 3 , wherein the filament is coated with a hemostatic substance.
6. The tissue puncture closure device of claim 1 , further comprising a wiper positioned on the tamping tube generally adjacent the at least one indentation.
7. The tissue puncture closure device of claim 1 , wherein the tamping tube is configured for extending distally from the carrier tube in use, thereby exposing the hemostatic substance to the site of the tissue wall puncture.
8. The tissue puncture closure device of claim 1 , further comprising a retractable sheath positioned over the tamping tube, the retractable sheath acting as a lid for the indentation and being configured for proximal retraction to expose the hemostatic substance to the site of the tissue wall puncture.
9. The tissue puncture closure device of claim 1 , further comprising a cover disposed over the indentation on the tamping tube, the cover being configured for removal to expose the hemostatic substance to the site of the tissue wall puncture.
10. The tissue puncture closure device of claim 9 , wherein the cover is adhesively coupled to the tamping tube.
11. The tissue puncture closure device of claim 9 , wherein the cover extends over substantially the length of the tube.
12. The tissue puncture closure device of claim 1 , wherein the apparatus for promoting hemostasis is configured and positioned such that the hemostatic substance is released proximally of the sealing plug in use.