Abstract: An open loop system for delivering fluid during hysteroscopic surgery. The system includes first and second fluid conduits in fluid communication with the uterine cavity of a patient. First and second measuring devices are provided for measuring the amount of fluid flowing into and out of the uterus. The measuring devices produce electronic signals which are communicated to a controller which uses them to calculate a value reflecting the difference in in-flow and out-flow. This difference is then compared with a preset value; if the preset value is exceeded, the surgeon knows the patient is absorbing too much fluid, and the procedure may be terminated.

Abstract: A Verres needle suturing device. The spring loaded probe of a Verres needle assembly is modified to include an angled guide for guiding the end of a piece of suture material from the channel of the probe out of the opening of the probe so that it can be snared by a snare introduced into the surgical site. The invention is particularly useful for relatively inaccessible surgical sites, such as result from endoscopic and laparoscopic surgery.

Abstract: Apparatus and surgical procedures are provided for completely coagulating endometrial tissue of the uterus by means of heated liquid in the distended uterus under direct view of a thermally insulated hysteroscope or under indirect view fluoroscopically using a thermally insulated hysterographic cannula and a radiopaque heated liquid.

Abstract: Apparatus for and method of recirculating fluid used in performing hysteroscopic endometrial ablation. The fluid preferably circulates through a closed loop, fluid delivery system, including a heater for heating the fluid, and passes through a chamber of known volume having graduated markings disposed thereon so that the amount of fluid circulating within the closed loop system can be continuously monitored. The apparatus is connected to the inlet and outlet ports of a hysteroscopic sheath positioned within the uterine cavity of a patient. Any drop of fluid level within the marked chamber will indicate to the surgeon that the patient is undesirably absorbing fluid so that the procedure may be swiftly terminated before adverse consequences occur.

Abstract: A Verres needle suturing device. The spring loaded probe of a Verres needle assembly is modified to include an angled guide for guiding the end of a piece of suture material from the channel of the probe out of the opening of the probe so that it can be snared by a snare introduced into the surgical site. The invention is particularly useful for relatively inaccessible surgical sites, such as result from endoscopic and laparoscopic surgery.

Abstract: Apparatus and surgical procedures are provided for completely coagulating endometrial tissue of the uterus by means of heated liquid in the distended uterus under direct view of a thermally insulated hysteroscope or under indirect view fluoroscopically using a thermally insulated hysterographic cannula and a radiopaque heated liquid.