Mechanical method and apparatus for enhancing hemostatis following arterial catheterization
A method for hemostasis of an artery having a puncture after arterial catheterization, the catheterization using an introducer sheath, the method including the steps of inserting into an artery a catheter introducer having a forward end and a balloon adjacent the forward end prior to arterial catheterization, following arterial catheterization and removal of a catheter from the catheter introducer, retracting the catheter introducer such that the forward end thereof lies exterior of the artery adjacent a puncture in the wall of the artery, inflating the balloon, thereby causing inward collapse of the forward end of the catheter introducer, thereby defining an enhanced surface area surrounded by the balloon adjacent the puncture for hemostasis, and following hemostasis, deflating the balloon and removing the catheter introducer from the patient. An introducer sheath suitable for use in the method is also described and claimed.
1. A method for hemostasis of an artery having a puncture after arterial catheterization, said catheterization using an introducer sheath, the method comprising the steps of:
inserting into an artery a catheter introducer having a forward end and a balloon adjacent said forward end prior to arterial catheterization;
following arterial catheterization and removal of a catheter from the catheter introducer, retracting the catheter introducer such that the forward end thereof lies exterior of the artery adjacent a puncture in the wall of the artery;
inflating said balloon, thereby causing inward collapse of said forward end of said catheter introducer, thereby defining an enhanced surface area surrounded by said balloon adjacent said puncture for hemostasis; and
following hemostasis, deflating said balloon and removing said catheter introducer from the patient.
2. A method for hemostasis of an artery having a puncture after arterial catheterization according to claim 1 and wherein said step of retracting the catheter introducer is effected by inflating said balloon to an extent less than that which causes said inward collapse of said forward end of said catheter introducer.
3. A method according to claim 2 and wherein said step of inflating said balloon causes said forward end of said catheter introducer to crease along multiple crease lines pre-formed therein.
4. A method according to claim 1 and wherein said inward collapse at least restricts the opening of said catheter introducer adjacent said puncture.
5. A method according to claim 1 and wherein said inward collapse at least closes the opening of said catheter introducer adjacent said puncture.