Methods and apparatus for hemostasis following arterial catheterization
First Claim
1. A method for monitoring the progress of hemostasis of an artery having a puncture after arterial catheterization, said catheterization using a catheter introducer, the method comprising the steps of:
- inserting into an artery a catheter introducer prior to arterial catheterization;
following arterial catheterization, introducing a hemostasis device into said catheter introducer, such that a forward end of said hemostasis device lies exterior of the artery adjacent a puncture in a wall of the artery;
during hemostasis, measuring the beat conductivity of blood in the vicinity of said puncture, thereby to provide an output indication of the progress of hemostasis; and
following hemostasis, removing said catheter introducer and said hemostasis device from the patient.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for accelerating hemostasis of an artery having a puncture after arterial catheterization, the catheterization using a catheter introducer, the method including the steps of inserting into an artery a catheter introducer prior to arterial catheterization, following arterial catheterization, introducing a hemostasis device into the catheter introducer, such that a forward end of the hemostasis device lies exterior of the artery adjacent a puncture in a wall of the artery, accelerating hemostasis by heating blood in the vicinity of the puncture, thereby shortening the time required for hemostasis and following hemostasis, removing the catheter introducer and hemostasis device from the patient. A method for monitoring the progress of hemostasis of an artery is also disclosed.
-
Citations
11 Claims
-
1. A method for monitoring the progress of hemostasis of an artery having a puncture after arterial catheterization, said catheterization using a catheter introducer, the method comprising the steps of:
-
inserting into an artery a catheter introducer prior to arterial catheterization;
following arterial catheterization, introducing a hemostasis device into said catheter introducer, such that a forward end of said hemostasis device lies exterior of the artery adjacent a puncture in a wall of the artery;
during hemostasis, measuring the beat conductivity of blood in the vicinity of said puncture, thereby to provide an output indication of the progress of hemostasis; and
following hemostasis, removing said catheter introducer and said hemostasis device from the patient. - View Dependent Claims (2, 3)
-
-
4. A method for accelerating hemostasis of an artery having a puncture after arterial catheterization, said catheterization using a catheter introducer, the method comprising the steps of:
-
inserting into an artery a catheter introducer prior to arterial catheterization;
following arterial catheterization, introducing a hemostasis device into said catheter introducer, such that a forward end of said hemostasis device lies exterior of the artery adjacent a puncture in a wall of the artery;
accelerating hemostasis by heating blood in the vicinity of said puncture, thereby shortening the time required for hemostasis; and
following hemostasis, removing said catheter introducer and hemostasis device from the patient. - View Dependent Claims (5, 6, 7)
-
-
8. Hemostasis apparatus comprising:
-
an elongate element;
at least one inflatable balloon disposed adjacent a forward end of said elongate element and being adapted to form a skirt surrounding and sealing a puncture in an artery;
a resistance element, disposed at a forward edge of said forward end and being operative as a resistance heater adapted to heat blood adjacent said resistance element and as a resistance sensor adapted for sensing the resistance of said blood; and
a resistance indicator, operative to provide an indication of the resistance at said resistance sensor, and thus being adapted to monitor the progress of hemostasis. - View Dependent Claims (9, 10, 11)
-
Specification