Electrohydraulic lithotripsy basket
First Claim
1. A device comprising in combination a basket extraction portion and an EHL probe, wherein the device is suitable for insertion into a body and is capable of securing a stone or calculus in a wire basket and then applying the destructive forces of the EHL probe to shatter the stone or calculus, and wherein, said basket extraction portion is comprised of a multiplicity of wires at least one of which is an electrically conductive wire which act both as electrical conduits and collectively act as a grasping device, said wires converging at the distal end of said device in a single, non-traumatic metal tip, said EHL probe having a probe point located within the circular structure of the said basket and extending in the proximal direction.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention concerns a novel combination device for the destruction of calculi such as urinary stones in the human bladder, individual urinary ureters, the biliary tract, or other locations in the human body. More specifically, the present invention concerns an electrohydraulic lithotripsy basket (EHL) which consists of multiple electrical conduit wires that act both as electrical conduits and collectively act as a grasping device. This invention also concerns a method for the destruction of urinary stones using the device claimed.
39 Citations
16 Claims
- 1. A device comprising in combination a basket extraction portion and an EHL probe, wherein the device is suitable for insertion into a body and is capable of securing a stone or calculus in a wire basket and then applying the destructive forces of the EHL probe to shatter the stone or calculus, and wherein, said basket extraction portion is comprised of a multiplicity of wires at least one of which is an electrically conductive wire which act both as electrical conduits and collectively act as a grasping device, said wires converging at the distal end of said device in a single, non-traumatic metal tip, said EHL probe having a probe point located within the circular structure of the said basket and extending in the proximal direction.
-
13. A device for removing a stone or calculus from a patient'"'"'s body which comprises:
-
a basket extraction portion comprising a multiplicity of wires at least one of which is an electrically conductive wire; and
an EHL probe comprising a catheter having a lumen and having proximal and distal ends, wherein the basket extraction portion is adjacent said probe distal end, said probe distal end terminating in a probe point located within the circular structure of said basket extraction portion and extending in the proximal direction, said probe proximal end terminates in a handle, and each said electrically conductive wire from the basket extractive portion transverses the catheter lumen and is secured in the handle. - View Dependent Claims (14, 15, 16)
-
Specification