Apparatus and methods for reducing bleeding from a cannulation site
First Claim
Patent Images
1. An apparatus to reduce or prevent bleeding from a percutaneous cannula insertion site, thereby reducing a risk of hematoma formation, the apparatus comprising:
- a cannula having a proximal end and a distal end, the cannula being configured to extend into a blood vessel and provide a path to an interior of the vessel; and
a plug disposed about and at least partially overlapping a portion of the cannula, the plug having a distal end configured to abut an exterior wall of the vessel while the cannula is maintained within the vessel and to reduce or prevent bleeding from the vessel.
5 Assignments
0 Petitions
Accused Products
Abstract
To reduce the risk of hematoma formation, apparatus and methods for reducing bleeding from a cannulation site are provided. In one embodiment, the apparatus comprises a plug that applies pressure to the cannulation site. In another embodiment, the apparatus further comprises a hemostatic agent. In another embodiment, the hemostatic agent is flowable through a lumen of the plug to be deployed at the cannulation site.
-
Citations
34 Claims
-
1. An apparatus to reduce or prevent bleeding from a percutaneous cannula insertion site, thereby reducing a risk of hematoma formation, the apparatus comprising:
-
a cannula having a proximal end and a distal end, the cannula being configured to extend into a blood vessel and provide a path to an interior of the vessel; and
a plug disposed about and at least partially overlapping a portion of the cannula, the plug having a distal end configured to abut an exterior wall of the vessel while the cannula is maintained within the vessel and to reduce or prevent bleeding from the vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An apparatus to reduce or prevent bleeding from a percutaneous cannula insertion site, thereby reducing a risk of hematoma formation, the apparatus comprising:
-
a cannula configured to extend into a blood vessel and provide a path through a vessel opening to an interior of the vessel;
a plug configured to accept a flow of hemostatic agent therethrough, the plug being disposed about and at least partially overlapping a portion of the cannula, an exterior wall of the cannula and an interior wall of the plug defining an annular space. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A method of reducing or eliminating bleeding from a percutaneous cannula insertion site, thereby reducing a risk of hematoma formation, the method comprising the steps of:
-
inserting a cannula, having a plug disposed about a portion thereof, into a vessel such that the cannula provides a path through a vessel opening to an interior of the vessel; and
advancing the cannula into the vessel until a distal end of the plug abuts an outer wall of the vessel surrounding the vessel opening. - View Dependent Claims (22, 23, 24, 25)
-
-
26. A method of reducing or eliminating bleeding from a percutaneous cannula insertion site, thereby reducing a risk of hematoma formation, the method comprising the steps of:
-
inserting a cannula, having a plug disposed about a portion thereof, an outer surface of the cannula and an inner surface of the plug defining boundaries of an annular space, into a vessel such that the cannula provides a path through a vessel opening to an interior of the vessel advancing the cannula into the vessel until a distal end of the plug abuts an outer wall of the vessel surrounding the vessel opening; and
injecting a hemostatic agent into the annular space. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
-
-
34. A medical apparatus comprising:
-
a cannula configured to extend into a blood vessel through a percutaneous insertion site and provide a path to an interior of the vessel; and
means for reducing bleeding from the insertion site.
-
Specification