Method of transradial catheterization, device for ulnar artery compression, and method of use
First Claim
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1. A method of catheterization of a radial artery of a patient, directed at minimizing occurrences of radial artery occlusion, comprising the steps of:
- (a) inserting a sheath into the radial artery at an access site;
(b) performing a catheterization procedure using the sheath to access the radial artery;
(c) applying a first pressure to a homolateral ulnar artery at an ulnar pressure site while the sheath remains inserted in the radial artery, thereby increasing flow in the radial artery;
(d) removing the sheath from the radial artery while maintaining the first pressure to the ulnar artery; and
(e) applying a second pressure to the radial artery at the access site to obtain hemostasis at the access site, wherein step (c) precedes step (e).
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Abstract
Disclosed are methods and devices for obtaining patent hemostasis of the radial artery by compressing the uninstrumented ulnar artery to increase radial artery flow. The device comprises a band having an inflatable bladder for applying blunt pressure to the ulnar artery. The method comprises applying a pressure to the homolateral ulnar artery and applying a pressure to the radial artery at the access site to obtain hemostasis at the access site.
39 Citations
19 Claims
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1. A method of catheterization of a radial artery of a patient, directed at minimizing occurrences of radial artery occlusion, comprising the steps of:
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(a) inserting a sheath into the radial artery at an access site; (b) performing a catheterization procedure using the sheath to access the radial artery; (c) applying a first pressure to a homolateral ulnar artery at an ulnar pressure site while the sheath remains inserted in the radial artery, thereby increasing flow in the radial artery; (d) removing the sheath from the radial artery while maintaining the first pressure to the ulnar artery; and (e) applying a second pressure to the radial artery at the access site to obtain hemostasis at the access site, wherein step (c) precedes step (e). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of obtaining patent hemostasis of a radial artery of a patient after performing a catheterization procedure using a sheath to access the radial artery wherein the sheath is inserted into the radial artery at an access site, comprising performing the following steps in sequence:
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(i) applying a first pressure to a homolateral ulnar artery at an ulnar pressure site while the sheath remains inserted in the radial artery, thereby increasing flow in the radial artery; (ii) reading a first metric comprising a sensing of skin blood flow and/or pulsation at a fingertip or other location downstream of the access site; (iii) removing the sheath from the radial artery while maintaining the first pressure to the ulnar artery; (iv) applying a second pressure to the radial artery at the access site to obtain hemostasis at the access site; and (v) confirming patency of the radial artery by obtaining a second metric relating to the sensing and comparing the second metric with the first metric. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification