The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1987
Filed:
Jan. 23, 1985
James A Thimsen, Richmond, VA (US);
Terry L Whipple, Richmond, VA (US);
Richard B Caspari, Maidens, VA (US);
Precision Surgical Instruments, Inc., Richmond, VA (US);
Abstract
A hand held surgical instrument for use in removing body tissue from a human body. It is particularly useful in arthroscopic surgery of joints such as of the knee or shoulder, but may also be used to remove tissue from the stomach, abdomen, jaw or other portions of the body. An auger-like helical cutter is motor driven at speeds in excess of 1,000 rpm within a stationary outer cylindrical sheath member. The helical cutter is ground to provide a generally concave distal end which gives it a generally fish-tailed appearance and the ability to cut endwise, i.e., to effect an axial boring cut. In addition, the cylindrical sheath member is provided with a pair of longitudinally extending, diametrically opposed tab members at its distal end. Each of the tabs has at least one longitudinally extending edge thereof ground to provide a cutting edge which co-acts with the auger-like cutter blade to sever body tissue insertable between the tabs.