초록 ▼

Some embodiments of the invention provide an apparatus for achieving hemostasis in a puncture tract that is created during a medical procedure. The puncture typically extends from the epidermis to the vasculature in a living organism. In some embodiments, the apparatus includes (1) a plug for subcut

Some embodiments of the invention provide an apparatus for achieving hemostasis in a puncture tract that is created during a medical procedure. The puncture typically extends from the epidermis to the vasculature in a living organism. In some embodiments, the apparatus includes (1) a plug for subcutaneous placement within the puncture tract, and (2) a delivery mechanism for delivering and maintaining the plug within the puncture tract until hemostasis is achieved. The apparatus also includes in some embodiments a lubricious sheath that is placed around the plug to facilitate the insertion of the plug into the puncture tract.

대표청구항 ▼

What is claimed is: 1. A method of achieving hemostasis in a puncture tract that is created during a medical procedure on a patient, the method comprising: inserting a guide wire into the puncture tract; sliding a bandage and a delivery mechanism coupled to the bandage over the guide wire in order

What is claimed is: 1. A method of achieving hemostasis in a puncture tract that is created during a medical procedure on a patient, the method comprising: inserting a guide wire into the puncture tract; sliding a bandage and a delivery mechanism coupled to the bandage over the guide wire in order to insert the bandage and at least a portion of the delivery mechanism into the puncture tract; after sliding the bandage and the delivery mechanism over the guide wire, removing the guide wire, wherein removing the guide wire causes a portion of the puncture tract to collapse; applying pressure to the delivery mechanism while maintaining the bandage in the puncture tract; and after removing the guide wire, pulling the delivery mechanism away from the puncture tract in order to remove the bandage from the puncture tract after a period of time, wherein said delivery mechanism is directly and fixedly coupled to the bandage while delivering and maintaining the bandage in the puncture tract and while removing the bandage from the puncture tract. 2. The method of claim 1, wherein the removing of the bandage from the puncture tract includes removing the bandage from the puncture tract after achieving hemostasis. 3. The method of claim 1, wherein the bandage includes at least one coagulating material. 4. The method of claim 1 further comprising passing the wire through a valve located in a passageway of the delivery mechanism, said valve preventing blood from flowing out of the patient through the passageway while allowing the wire to pass through the passageway. 5. The method of claim 1 further comprising affixing the delivery mechanism to the patient while the bandage is within the puncture tract. 6. The method of claim 1, wherein the bandage has a tapered tip. 7. The method of claim 1, wherein the puncture tract terminates at a vascular puncture, wherein when the bandage is inserted into the puncture tract, the bandage does not reach the vascular puncture. 8. The method of claim 1, wherein the delivery mechanism further includes a stem, the bandage being located on a distal end of the stem, and, when fully deployed to promote hemostasis, a total length of the bandage and the stem being less than a length of the puncture tract. 9. The method of claim 8, wherein the bandage surrounds a portion of the stem and the stem further includes a lumen. 10. A method of operating a hemostatic device comprising a bandage and a delivery mechanism, said delivery mechanism comprising a pad having a surface and a stem coupled to the bandage, the method comprising: forming an opening and an access tract in skin of a patient; forming a vascular puncture at an end of the access tract, the vascular puncture extending through a wall of a vessel; directing the stem of the delivery mechanism toward a puncture tract to insert the bandage into the puncture tract but not through a vascular puncture, wherein a total length of the bandage and the stem of the delivery mechanism, when the bandage is fully deployed in the access tract to promote hemostasis, is less than the distance from the opening to the vascular puncture; maintaining the surface of the pad outside the puncture tract; applying pressure to the surface of the pad in order to apply pressure which maintains the bandage in the puncture tract; and after a period of time, pulling the delivery mechanism away from the puncture tract in order to remove the bandage from the puncture tract, said delivery mechanism being fixedly coupled to the bandage while maintaining the bandage in the puncture tract and while pulling the delivery mechanism away from the puncture tract. 11. The method of claim 10, wherein when the bandage is fully deployed into the puncture tract, the bandage does not reach the vascular puncture. 12. The method of claim 10, wherein pulling the delivery mechanism away from the puncture tract includes pulling the delivery mechanism away from the puncture tract after achieving hemostasis. 13. The method of claim 10, wherein the bandage includes: a tapered tip on a distal end of the bandage; a central lumen; and at least one coagulating material. 14. The method of claim 10, further including securing the delivery mechanism to prevent the bandage from moving within the puncture tract. 15. The method of claim 10, wherein the bandage is located on a distal end of the stem. 16. The method of claim 10, further including: prior to directing the delivery mechanism toward the puncture tract, placing a guide wire through the puncture tract and the vascular puncture; threading the delivery mechanism onto the guide wire; and after the bandage has been inserted into the puncture tract but before removing the bandage from the puncture tract, removing the guide wire such that a portion of the puncture tract collapses. 17. A method of performing a medical operation, comprising: forming an access tract in skin of a patient through a percutaneous opening; forming a vascular puncture at an end of the access tract, the vascular puncture extending through a wall of a vessel; placing a guide wire through the access tract and the vascular puncture and into the vessel; threading an apparatus onto the guide wire, the apparatus including a bandage on a distal end of the apparatus, the apparatus further including a mechanism to deliver the bandage; advancing the apparatus into the access tract; stopping advancement of the apparatus prior to the apparatus reaching the wall of the vessel so that the bandage is positioned within the access tract proximal to the vascular puncture, at least a portion of the mechanism being positioned outside of the patient; while the apparatus is positioned in the access tract, removing the guide wire such that a portion of the access tract collapses; and without disconnecting the mechanism from the bandage, removing the bandage from the access tract through the percutaneous opening. 18. The method of claim 17, further including applying pressure to the mechanism while maintaining the bandage in the puncture tract. 19. The method of claim 17, wherein the bandage includes a tapered tip and a lumen configured to receive the guide wire. 20. The method of claim 17, wherein the mechanism further includes a stem, the bandage being located on a distal end of the stem, and, when fully deployed to promote hemostasis, a total length of the bandage and the stem being less than the distance from the percutaneous opening to the vascular puncture. 21. The method of claim 20, wherein the stem includes a lumen and is substantially cylindrical. 22. The method of claim 21, wherein the bandage surrounds at least a portion of the stem. 23. The method of claim 17, wherein the bandage includes at least one coagulating material. 24. The method of claim 17, wherein removing the bandage includes removing the bandage from the access tract after achieving hemostasis. 25. The method of claim 17, further including securing the apparatus to prevent the bandage from moving within the access tract. 26. A method of performing a medical operation, comprising: creating an opening in an epidermis of a patient; forming an access tract in a subcutaneous tissue layer via the opening; forming a vascular puncture at an end of the access tract, the vascular puncture extending through a wall of a vessel; advancing a stem of an apparatus into the access tract, the apparatus including a bandage fixedly coupled on a distal end of the stem, wherein a total length of the bandage and the stem, when the bandage is fully deployed in the access tract to promote hemostasis, is less than the distance from the opening to the vascular puncture; and removing the stem and the bandage through the access tract with the stem fixedly coupled to the bandage. 27. The method of claim 26, wherein removing the stem and the bandage includes removing the stem and the bandage from the access tract after achieving hemostasis. 28. The method of claim 26, further including securing the apparatus to prevent the bandage from moving within the access tract. 29. The method of claim 26, further including: prior to advancing the stem, placing a guide wire through the access tract and the vascular puncture and into the vessel; threading the apparatus onto the guide wire; and after the bandage has been advanced into the access tract but before removing the stem and the bandage through the access tract, removing the guide wire such that a portion of the access tract collapses. 30. The method of claim 26, further including applying pressure to the apparatus while maintaining the bandage in the access tract. 31. The method of claim 26, wherein the bandage includes a tapered tip and a lumen configured to receive the guide wire. 32. The method of claim 26, wherein the stem is substantially cylindrical and includes a lumen. 33. The method of claim 26, wherein the bandage surrounds at least a portion of the stem. 34. The method of claim 26, wherein the bandage includes at least one coagulating material. 35. A method of performing a medical operation, comprising: forming an access tract in a subcutaneous layer of skin via an opening in the skin; forming a vascular puncture through a wall of a vessel, the vascular puncture being located at a terminal end of the access tract; advancing an apparatus, the apparatus including a delivery mechanism and a bandage fixedly coupled to the delivery mechanism, into the access tract but not into contact with the wall of the vessel or into the vascular puncture, the apparatus promoting hemostasis without contacting the wall of the vessel; and after hemostasis occurs, removing the apparatus including the bandage back through the access tract. 36. The method of claim 35, further including securing the bandage to prevent the bandage from moving within the access tract. 37. The method of claim 35, wherein the delivery mechanism further includes a stem, the bandage being located on a distal end of the stem, and, when fully deployed in the access tract to promote hemostasis, a total length of the bandage and the stem being less than the distance from the opening to the vascular puncture. 38. The method of claim 37, wherein the stem includes a lumen and is substantially cylindrical. 39. The method of claim 37, wherein the bandage surrounds at least a portion of the stem. 40. The method of claim 35, further including: prior to advancing the apparatus, placing a guide wire through the access tract and the vascular puncture and into the vessel; threading the apparatus onto the guide wire; and after the bandage has been advanced into the access tract but before removing the apparatus through the access tract, removing the guide wire such that a portion of the access tract collapses. 41. The method of claim 35, further including applying pressure to the apparatus while maintaining the bandage in the access tract. 42. The method of claim 35, wherein the bandage includes a tapered tip and a lumen configured to receive the guide wire. 43. The method of claim 35, wherein the bandage includes at least one coagulating material. 44. A method of operating a hemostatic device comprising a bandage and a delivery mechanism coupled to the bandage, the method comprising: directing the delivery mechanism toward a puncture tract to insert the bandage into the puncture tract; maintaining a surface of the delivery mechanism outside the puncture tract; creating pressure between the bandage and the puncture tract to promote hemostasis when at least a portion of the puncture tract distal to the bandage is collapsed; and without disconnecting the delivery mechanism from the bandage, after a period of time, pulling the delivery mechanism away from the puncture tract in order to remove the bandage from the puncture tract. 45. The method of claim 44, wherein pulling the delivery mechanism away from the puncture tract includes pulling the delivery mechanism away from the puncture tract after achieving hemostasis. 46. The method of claim 44, further including securing the delivery mechanism to prevent the bandage from moving within the puncture tract. 47. The method of claim 44, wherein the delivery mechanism further includes a stem, the bandage being located on a distal end of the stem, and, when fully deployed, a total length of the bandage and the stem being less than a length of the puncture tract. 48. The method of claim 44, further including: prior to directing the delivery mechanism toward the puncture tract, placing a guide wire through the puncture tract and a vascular puncture; threading the delivery mechanism onto the guide wire; and after the bandage has been inserted into the puncture tract but before removing the bandage from the puncture tract, removing the guide wire such that the portion of the puncture tract collapses. 49. The method of claim 44, further including applying pressure to the delivery mechanism while maintaining the bandage in the puncture tract. 50. The method of claim 44, wherein the bandage includes: a tapered tip on a distal end of the bandage; a central lumen; and at least one coagulating material. 51. The method of claim 50, wherein creating pressure includes creating pressure between the tip and the portion of the puncture tract. 52. The method of claim 44, wherein the directing step includes inserting the bandage into the puncture tract but not through a vascular puncture.