Surgery – Instruments
Patent
1988-11-09
1991-01-29
Howell, Kyle L.
Surgery
Instruments
128785, A61B 1700
Patent
active
049883470
ABSTRACT:
Heart lead removal apparatus is disclosed for removing a heart lead from the wall of a heart through a blood vessel leading to the heart. The apparatus comprises a flexible stylet wire with an expandable wire coil attached to the distal end for engaging the coiled structure of the heart lead. The stylet wire is inserted in the longitudinal passageway of the coiled structure to the distal end of the heart lead where the tip is typically secured to the heart wall with a number of tines formed from the insulating material surrounding the coiled structure. When inserted, the stylet wire is rotated in a direction to unwind and expand the wire coil and engage the heart lead coiled structure, thereby securing the stylet wire to the heart lead. A separator tube is inserted over the proximal end of the stylet wire and the heart lead and moved along the entire length of the heart lead to first separate the restricted heart lead from the blood vessel leading to the heart cavity. When fully inserted, the separator tube is positioned against the heart cavity wall, and the stylet wire is pulled while the separator tube is rotated back and forth to separate the heart lead tip from the heart wall. The separator tube, stylet wire, and heart lead are then removed from the heart cavity and blood vessel without causing any significant injury to the heart cavity wall.
REFERENCES:
patent: 3243755 (1966-03-01), Johnston
patent: 3516412 (1970-06-01), Ackerman
patent: 3841308 (1974-10-01), Tate
patent: 4471777 (1984-09-01), McCorkle, Jr.
patent: 4541681 (1985-09-01), Dorman et al.
patent: 4574800 (1986-03-01), Peers-Trevarton
patent: 4576162 (1986-03-01), McCorkle
patent: 4582056 (1986-04-01), McCorkle
Meibom, "A New Method for Transvenous Lead Explanation", 3rd European Symposium on Cardiac Pacing, Torremolinos, Malaga, Spain, PACE, vol. 8, May-June, 1985, Part II, Abstract 215, p.A-54.
Meibom et al., "A New Method for Removal of Embedded Endocardial Electrodes", First Asian-Pacific Symposium, PACE, vol. 3, May-Jun., 1980, Abstract No. 77, p. 380.
"Dotter Intravascular Retriever Set and Components", Cook.RTM. Diagnostic and Interventional Products for Radiology, Cardiology and Surgery, Intravascular Retrieval, 1986, p. 3.
"Wilson-Cook Grasping Forceps", Wilson-Cook Medical, Inc., Products for Gastroenterology, Endoscopy and Surgery, 1986-1987 Catalog, p. 41.
"Loop Retrievers", Cook Urological.RTM. Urological Surgical Products, Stone Extractors and Retrievers, 1986, p. 9.
"Boren-McKinney Retriever Set", Cook Urological.RTM. Urological Surgical Products, Stone Extractors and Retrievers, 1986, p. 9.
"Curry Intravascular Retriever Sets and Components", Cook.RTM. Diagnostic and Interventional Products for Radiology, Cardiology and Surgery, Intravascular Retrieval, 1986, p. 2.
"Grasping Forceps", Cook Urological.RTM. Urological Surgical Products, Stone Extractors and Retrievers, 1986, p. 8.
Goode Louis
Shipko Frederick J.
Cook Pacemaker Corporation
Godlewski Richard J.
Howell Kyle L.
Schaetzle Kennedy J.
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