Method of and apparatus for laparoscopic or endoscopic spinal surgery using an unsealed anteriorly inserted transparent trochar
First Claim
1. An apparatus for use in endoscopic or laparoscopic surgery on a patient'"'"'s spine comprising:
- means for forming a passageway to said patient'"'"'s spine through an incision made in said patient'"'"'s abdominal or chest for the insertion of specially designed long-necked surgical instruments therethrough to perform a surgerical procedure on said patient'"'"'s spine wherein said means forming said passageway includes an inner tubular member of a first diameter and an outer tubular member of a second diameter which is slightly larger than said first diameter in order for said inner tubular member to fit telescopingly within said outer tubular member;
means for dually functioning to prevent telescoping of said inner tubular member within said outer tubular member and to stabilize said means for forming a passageway in a position for use during surgery against movement relative to said patient'"'"'s spine; and
means positioned on an end of said inner tubular member for anchoring said means for forming a passageway to a vertebrae in said patient'"'"'s spine, wherein said means for anchoring is a tubular metal fitting and wherein said tubular metal fitting has a plurality of serrated teeth on one end and on an opposite end a threaded outer periphery which mates with an inner periphery of said inner tubular member.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of and apparatus for performing endoscopic or laparoscopic surgery on a patient'"'"'s spine is provided. The apparatus includes a trochar which is specifically design for spinal applications. The trochar includes of a first transparent tubular member of a predetermined diameter and a second transparent tubular member of a slightly larger diameter than the first transparent tubular member. The first transparent tubular member fits slidingly within the second transparent tubular member in a telescoping manner. The first transparent tubular member has two ends: an end for remaining in side-to-side contact with said second tubular member and a free end which has an attached metal fitting with serrated teeth for anchoring in the patient'"'"'s vertebrae when the trochar is inserted through a incision made in the patient'"'"'s abdomen or chest. The trochar also includes a collar and set screw arrangement. The collar is made up of a short tubular portion having a flanged end. The flanged end is annularly shaped and protrudes approximately perpendicularly outwardly from the short tubular portion of the collar. The short tubular portion of the collar has a threaded aperture therethrough. The threaded aperture threadingly mates with a set screw which when turned far enough counterclockwise prevents the first tube from telescoping within the second tube. Additionally, the collar and set screw arrangement also functions to stabilize the trochar in an approximately upright position at an angle to the patient'"'"'s body.
247 Citations
19 Claims
-
1. An apparatus for use in endoscopic or laparoscopic surgery on a patient'"'"'s spine comprising:
-
means for forming a passageway to said patient'"'"'s spine through an incision made in said patient'"'"'s abdominal or chest for the insertion of specially designed long-necked surgical instruments therethrough to perform a surgerical procedure on said patient'"'"'s spine wherein said means forming said passageway includes an inner tubular member of a first diameter and an outer tubular member of a second diameter which is slightly larger than said first diameter in order for said inner tubular member to fit telescopingly within said outer tubular member; means for dually functioning to prevent telescoping of said inner tubular member within said outer tubular member and to stabilize said means for forming a passageway in a position for use during surgery against movement relative to said patient'"'"'s spine; and means positioned on an end of said inner tubular member for anchoring said means for forming a passageway to a vertebrae in said patient'"'"'s spine, wherein said means for anchoring is a tubular metal fitting and wherein said tubular metal fitting has a plurality of serrated teeth on one end and on an opposite end a threaded outer periphery which mates with an inner periphery of said inner tubular member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of performing endoscopic or laparoscopic surgery on a patent'"'"'s spine comprising the method steps of:
-
making an incision in said patient'"'"'s abdomen or chest; inserting a trochar which includes a first transparent tubular member of a predetermined diameter and a second transparent tubular member of a slightly greater diameter that slidingly accepts said first tubular member in a telescoping manner through said incision; anchoring a pronged metal member threadingly placed on one end of said first transparent tubular member in to one of said patient'"'"'s spine bones; positioning a set screw and collar arrangement slidingly mounted on said second transparent tubular member against said patient'"'"'s body so that a flanged end of said collar arrangement rests against said patient'"'"'s body in order to stabilize said trochar in an upright position approximately perpendicular to said patient'"'"'s body; and tightening a set screw threadingly mounted on said collar arrangement slidingly mounted on said second transparent tubular member to prevent further telescoping of said first and second transparent tubular members during surgery. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
Specification