Surgery – Truss – Pad
Patent
1980-12-15
1983-08-02
Lesmes, George F.
Surgery
Truss
Pad
128753, 128 4, 128 7, 128751, 128 79, A61B 600, A61B 1000
Patent
active
043960219
ABSTRACT:
An apparatus and method is disclosed for enabling the extraction of a biopsy sample from the prostate through the urinary tract and for performing medical treatment in the prostate area. The apparatus includes an outer sheath and removable obturator portion which is located within the sheath during insertion of the sheath into the urinary tract. Once the sheath has been inserted, a sampling portion is substituted for the obturator to enable the extraction of a biopsy sample. The configuration of the sampling portion which cooperates with the sheath during extraction of the biopsy sample includes adjacent tubes retained within the sheath and a harpoon-shaped needle movable through one of the tubes. The harpoon needle cooperates with the one tube to provide cutting and retention of the biopsy sample by movement of a shaft external to the sheath portion. The other tube enables the insertion of a light conducting pipe and lens structure to view the area from which the sample is taken. In use, the apparatus is a modified cystoscope which is employed to obtain a prostate biopsy by insertion of the sheath and first obturator through the external urethral orifice of the penis and through the urethra until the end is adjacent the prostate. The sampling portion is the inserted and the biopsy taken by piercing of the prostate and removal of the sampling portion. The same sampling portion can alternatively be used to provide treatment to the prostate area through the sheath.
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Scott, "A Spacer Injection Needle for .sup.125 I and other Radioactive Sources in Perm. Seed Impl.", Radiology, vol. 122, 832-834, Mar. 1977.
Lesmes George F.
Swisher Nancy A. B.
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