Abstract: This invention relates to endoscopic instrumentation apparatus and comprises a puncture cannula and a related hollow mandrel and optical system connectible to a coupling element of the puncture cannula; a hollow cylindrical intermediate element is also connectible to said coupling element of the puncture cannula and there are valved connectors fitted to the puncture cannula and the hollow mandrel, said valved connectors also being connectible to an automatic gas supply. The coupling element of the cannula is constituted by a hollow shaft which is installed for displacement against a spring towards a proximal end of the cannula; the hollow mandrel extends distally beyond an oblique face of the cannula and the intermediate element and the cannula are traversed by a connectible optical system which projects distally at least beyond the oblique face of the puncture cannula.The apparatus can be used for performing laparoscopy and culdoscopy operations or examinations.

Abstract: Insufflation gas from a compressed gas source is introduced into a body cavity through a tube connected to the source by an insufflation duct, the pressure in the body cavity being measured by a pressure gauge connected to the body cavity by a measuring duct, and any deviations from a preselected gas pressure for the body cavity being sensed in the measuring duct by control means operative to open or close a valve in the insufflation duct to control the pressure of the gas in the body cavity.

Abstract: A photoendoscope comprising a telescope tube defining, near its distal end a viewing port, flash-tube assembly means connected to the distal end of the telescope tube and including a flash-tube proper enveloped in transparent protective sheath means arranged in a housing defining an aperture for transmitting light from the flash-tube proper and light conductor means extending along the telescope tube and terminating proximally of said viewing port, a barrel enclosing said telescope tube and said light conductor means at least in their distal end regions, and said flash-tube means, said barrel defining two apertures aligning respectively with said viewing port and with said flash-tube light transmitting aperture, and a transparent cylindrical sheath which is secured in said barrel, which extends for approximately the length of said flashtube proper and which covers said flash-tube light transmitting aperture, said transparent cylindrical sheath having a wall thickness which is greater where it covers said flas

Abstract: An applicator for a spring-biased surgical clip, including a pair of independently moveable push rods of which one is moveable distally against a first spring bias while both are moveable proximally against a second spring bias.

Abstract: An optical device for an endoscope comprises inner and outer tubes of which the inner contains the optical system, a sleeve of wider internal diameter than the tubes, the sleeve being rigidly connected to the proximal end part of the outer tube and being connected to the inner tube, and means interposed in the connection between the inner tube and the sleeve for taking up relative longitudinal expansion therebetween.

Abstract: A cutting loop device for a resectoscope comprising two arms carrying two parallel cutting loops of wire in the distal end region of the device, the more proximal of said cutting loops being connectable via one of said arms to the live pole of a high frequency current source and the more distal of said cutting loops being connectable via the other of said arms to the neutral pole of said source.

Abstract: This invention relates to surgical instruments such as probes or forceps which are heated from an external current source, and more particularly to such instruments which are used, for example, for laparoscopy.The invention consists in the provision of a switch in the circuit of a heating element, a settable electronic control means for closing said switch for an adjustable length of time and means for automatically opening said switch for a length of time equivalent to the cooling-off period for the appropriate part of said instrument.

Abstract: This invention relates to forceps instruments, particularly those used for fitting tantalum clips for sealing off the Fallopian tubes in the human female. Such instruments ordinarily comprise a barrel with a handle at the proximal end thereof to open and close jaws of the forceps for the clips at the distal end of the barrel, the surgeon observing the operational area by means of an optical system that includes a viewing tube associated with the forceps instrument. In accordance with the invention, the viewing tube extends centrally through the barrel which is longitudinally movable to open and close the forceps jaws; the viewing tube terminates in a straight line so as to give the surgeon uninterrupted vision between the forceps jaws.

Abstract: Bipolar coagulation forceps in which the forceps coagulate both the fallopian tube and the adjacent mesoslpinx.