Claims
- 1. A system for injecting a sponge into tissue, the system comprising:
a catheter having a closed distal end and a side port adjacent the distal end for delivering a pledget of sponge material in a hydrated state to the tissue; and an adaptor connected to the catheter for hydrating and delivering the pledget to the catheter, the adaptor having a tapered lumen with a large diameter proximal end and a small diameter distal end, wherein the small diameter distal end is connected to the cannula.
- 2. The system of claim 1, wherein the adaptor is fixed to the catheter.
- 3. The system of claim 1, wherein the adaptor is removable from the catheter.
- 4. The system of claim 1, further comprising a biopsy cannula having a tissue puncturing distal end and a side port positioned adjacent the distal end, wherein the catheter is configured to fit within the biopsy cannula to deliver the pledget to the tissue.
- 5. The system of claim 4, wherein the biopsy cannula includes a first indexing member and the catheter includes a second indexing member for radially aligning the catheter with the cannula.
- 6. The system of claim 5, wherein the first and second indexing members include at least one projection and at least one corresponding recess.
- 7. The system of claim 1, further comprising a pledget of sponge material preloaded in the adapter.
- 8. The system of claim 7, wherein the sponge is an absorbable sponge material.
- 9. The system of claim 7, wherein the sponge contains a radiopaque marker.
- 10. The system of claim 4, wherein the biopsy cannula is a breast biopsy cannula.
- 11. A method of delivering an absorbable radiopaque marker to a biopsy site comprising:
removing tissue from a biopsy site through a cannula inserted to the biopsy site; and delivering an absorbable radiopaque marker through the cannula to the biopsy site.
- 12. The method of claim 11, wherein the absorbable radiopaque marker is formed of an absorbable sponge material.
- 13. The method of claim 11, wherein the tissue is removed from the biopsy site through a side port of the cannula and the absorbable radiopaque marker is delivered through the side port of the biopsy cannula.
- 14. The method of claim 11, wherein the cannula remains in place at the biopsy site after removal of the tissue for delivery of the absorbable radiopaque marker.
- 15. The method of claim 11, wherein the absorbable radiopaque marker is formed of a hemostatic sponge material.
- 16. The method of claim 11, wherein the tissue is removed from a breast biopsy site.
- 17. A method of facilitating hemostasis of a biopsy site comprising:
removing tissue from a biopsy site through a side port of a cannula inserted to the biopsy site; and delivering a hemostasis promoting material through the side port of the cannula to the biopsy site.
- 18. The method of claim 17, wherein multiple tissue samples are removed at different radial locations around the cannula and delivery of the hemostasis promoting material is repeated at different radial locations around the cannula.
- 19. The method of claim 17, wherein the hemostasis promoting material is delivered by hydrating and compressing the hemostasis promoting material and injecting the material by fluid pressure to the biopsy site.
- 20. The method of claims 17, wherein the hemostasis promoting material is a sponge pledget.
- 21. The method of claim 20, wherein the sponge pledget is absorbable.
- 22. The method of claim 20, wherein the sponge pledget includes a radiopaque marker.
- 23. The method of claim 17, wherein the tissue is removed from a breast biopsy site.
Parent Case Info
[0001] This application is a continuation-in-part of U.S. application Ser. No. 09/247,880 filed Feb. 10, 1999 which is a continuation-in-part of U.S. application Ser. No. 09/071,670 filed May 1, 1998, both of which are incorporated herein by reference in their entirety.
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
09247880 |
Feb 1999 |
US |
Child |
09382160 |
Aug 1999 |
US |
Parent |
09071670 |
May 1998 |
US |
Child |
09247880 |
Feb 1999 |
US |