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Adjustable laryngoplasty device
| Details |
Inventors: Godley, III, Frederick A.; Christu, Paul C.;
Assignee:
Primary Examiner: Green; Randall L.
Assistant Examiner: Willse; D.
Attorney, Agent or Firm: Salter, Michaelson & Benson
An adjustable laryngoplasty device is provided for medializing a paralyzed vocal cord in a larynx. The device includes an anchoring plate, a prosthesis member, and a pair of adjustment screws which are threaded through the anchoring plate and rotatably connected to the prosthesis member. A window is formed in the patient's thyroid cartilage adjacent the paralyzed vocal cord and the prosthesis member is extended through the window so that it presses against the underlying vocal cord. The anchoring plate is secured to the outer surface of the thyroid cartilage with self-tapping screws which are extended through apertures in the anchoring plate and imbedded into the thyroid cartilage. The adjustment screws are rotatable for moving the prosthesis member relative to the anchoring plate and thereby adjusting the medial position of the vocal cord in the larynx. |
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DETAILED DESCRIPTION What is claimed is: 1.
A device for medializing a paralyzed vocal cord in a larynx, said larynx including an outer layer of thyroid cartilage and a window formed in said thyroid cartilage adjacent to said paralyzed vocal cord, said device comprising: an anchoring plate having a pair of spaced, threaded apertures formed therein; a prosthesis member; a pair of adjustment screws having first and second ends, said adjustment screws being threaded through said threaded apertures, and said first ends of said adjustment screws being rotatably connected to said prosthesis member; and means for securing said anchoring plate over said window in said thyroid cartilage so that said prosthesis member extends through said window and presses against said vocal cord; said adjustment screws being operable for moving the prosthesis member relative to said anchoring plate and thereby adjusting the medial position of said vocal cord in said larynx.
2.
In the device of claim 1, said prosthesis member comprising a wedge shaped body having a first end and a second end, said first ends of said adjustment screws being rotatably connected to said wedge shaped body adjacent the first and second ends thereof.
3.
In the device of claim 1, said prosthesis member including a pair of sockets formed therein, said adjustment screw each including a ball element on the first end thereof, said ball elements being received in said sockets to form a ball and socket joint.
4.
In the device of claim 1, said prosthesis member comprising a plate element having first and second ends, said first ends of said adjustment screws being rotatably connected to said plate element adjacent the first and second ends thereof.
5.
In the device of claim 1, said means for securing comprising a plurality of apertures in said anchoring plate and a plurality of self-tapping screws which are extended through said plurality of apertures and secured to said thyroid cartilage.
6.
In the device of claim 1, each of said adjustment screws including a head portion at the second end thereof, said head portions including socket means which are adapted to receive an adjustment tool for rotating said adjustment screws
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