Apparatus for closing vascular puncture
AssigneeLoma Linda University Medical Center
InventorsYong Hua Zhu, Wolff M. Kirsch
Life of this patent
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Abstract
A method and apparatus for closing a vascular wound includes a guidewire and/or other surgical implement extending from the wound. A hemostatic material is advanced over the surgical implement and into contact with an area of the blood vessel surrounding the wound. The surgical implement is removed. Blood soaks the hemostatic material, and blood clotting is facilitated by the hemostatic agent within the material. A sealing layer of adhesive can be applied to the hemostatic material, confining the blood flow to the material. The vascular puncture wound is sealed by natural blood clot formation.
Claims20
A method for closing a wound in a blood vessel of a patient, comprising:
- providing a guidewire extending through the wound and out of the patient;
- providing a catheter adapted to accommodate the guidewire and comprising a lumen, the catheter having at least one hole formed through a side of the catheter, the at least one hole communicating with the lumen;
- providing a source of suction;
- placing the lumen into communication with the source of suction;
- providing a retractor having a plurality of elongate retractor arms;
- coupling the retractor to the catheter so that a distal end of each retractor arm is positioned proximal of the hole a distance at least the same as a thickness of a wall of the artery;
- mounting a hemostatic material onto the catheter;
- threading the catheter over the guidewire;
- advancing the catheter and retractor over the guidewire until blood is drawn through the at least one hole in the lumen;
- actuating the retractor to at least partially provide access to an outer wall of the artery surrounding the wound;
- advancing the hemostatic material over the catheter into contact with the artery;
- and
- removing the retractor, catheter and guidewire.
A method for closing a vascular wound, comprising:
- locating the wound;
- positioning a surgical implement so that a portion of the implement extends through the wound and a portion extends out of the wound;
- providing a hemostatic material;
- positioning the hemostatic material about the implement;
- and
- advancing the hemostatic material over the surgical implement so that the hemostatic material is disposed adjacent the wound.
Dependencies are inferred from the claim text.