Apparatus and method for positive closure of an internal tissue membrane opening
AssigneeAdvanced Research and Technology Institute, Inc.
InventorsDavid Hathaway, Brian Patton, Keith March
Life of this patent
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Abstract
The invention provides a device having two components: a needle advancing apparatus slidable longitudinally along a catheter to advance needles into a tissue membrane, such as a blood vessel wall, around an opening in the membrane; and, a suture retrieval assembly insertable through the catheter beyond a distal side of the tissue membrane The needle advancing apparatus advances suture through the tissue wall. The suture retrieval assembly grabs the suture on the distal side of the tissue membrane for extraction thereof through the opening in the tissue membrane. A method for suturing a membrane beneath the patient's skin is also disclosed.
Claims5
A method for capturing an edge of an opening in a blood vessel membrane with suture, said method comprising:
- introducing a first needle in a distal direction through a first opening in tissue over the opening in the blood vessel lumen caused by a catheterization procedure;
- penetrating the first needle in a distal direction through the membrane at a first penetration site adjacent to the blood vessel wall opening;
- and
- passing suture through the first penetration.
Dependencies are inferred from the claim text.