Abstract: A method and apparatus for medically treating recessed body tissues with medicament fluid. The invention comprehends aspirating the tissue to be treated prior to the introduction of the medicament fluid thereto so as to provide an improved delivery thereof. The apparatus includes a delivery tube having distributed openings at the distal end thereof and structure for selectively connecting either an aspirating syringe or a medical fluid delivery syringe at the opposite end. A support is provided having structure for permitting rotation of the tube about its longitudinal axis. A cystoscope is provided to permit the doctor to observe the location of the distal tip of the treatment apparatus for accurate location thereof in carrying out the fluid delivery.

Abstract: A preassembled door casement adapted to be received within an opening of a wall of selected thickness is provided with a positionable nailing fin about the assembly for securing the assembly to the opening. The position of the nailing fin with respect to the casement is selectable so as to accommodate the particular wall thickness.

Abstract: A target practice system including reusable cartridges for firearms and a bullet trap for stopping the flight of projectiles from the cartridges. The case of the cartridge is adapted to receive the projectile, or alternative standard cases may be used. The projectile has a cylindrical core of a diameter less than the rifling of the firearm and axially spaced-apart, outwardly opening channels extend circumferentially about the core. Endless resilient rings are inserted into the channels. A powder-receiving hole is provided in the rearward end of the projectile. When fired, the projectile rides on the resilient rings as it travels down the barrel of the firearm. The core does not come in contact with the barrel, and the resilient rings center the core in the barrel during travel down it for improved accuracy. A rocket-like effect is realized from the rearward discharge of gases liberated by combustion. Also, methods of loading the reusable cartridges are disclosed.

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.