CS257122B1 - Membrane closure of a troacare for second puncture during laparoscopy - Google Patents

Description

The present invention relates to a solution of a diaphragm coating of a lace-wedge napkin for lapanoscopy.

Surgical laparoscopy - begins to occupy an important place in some surgical procedures - especially in gynecology. In addition to the optical system in the fcubus, it uses punching auxiliary tools, instrument sets. These are introduced under optical control via auxiliary triacs from the second puncture into the abdominal cavity to perform surgical procedures such as surgical closure of the tubes to sterilize the woman, collection of biopsy material, breakage of adhering tubes or ovaries, neostomy, conservative treatment extrauterine pregnancy. These endoscopic surgical procedures often replace laparotomy.

So far, two types of semi-automatic trocar for the second puncture are known. The first one with the so-called trumpet cap closure. This is the mechanism used to introduce the optics of the laparoscope and its principle is based on a semi-automatic, mechanical closure, similar to sealed buttons of musical instruments, tubes. A second embodiment of the closure currently used by the train is the so-called spring closure in the form of a spring-type flap, which closes the closure of the trocar sheath upon insertion or removal of the trocar itself. Both embodiments of the trocar cap are currently used as part of the most advanced laparoscopic instruments. They have a relatively complicated and sensitive mechanism of the construction of the closure system, which is to prevent more gas leakage after its filling of the abdominal cavity - by establishing pneumoperitoneum. It is basically a semi-automatic valve system using push-button or flap valve systems using spring-loaded shutters. These are mounted on a fine axis in the hollow head of the trocar, which is additionally terminated by a cap-shaped rubber seal. Another disadvantage is the time-consuming wear and failure rate, which is associated with regular and demanding maintenance, with regular disassembly and treatment of the valve after each use and prior to sterilization. In addition, its partial wear causes leakage of the closure system, causing not only leakage of the patient's abdominal cavity during surgery and thus the necessity of virtually permanent replenishment.

Hygiene, which may endanger the surgeon, is a serious problem when leaking gas and changing tools.

The above-mentioned drawbacks are overcome and the technical problem of the closure is solved by the second closure diaphragm closure for laparoscopy according to the invention, which consists in the fact that a lower insert and an upper insert are housed in the housing head. The lower insert is provided with a crisis opening and the upper insert is provided with a cylindrical opening.

The diaphragm closure of the trocar according to the invention results in a simple reduction of the dimensions and the weight of the trocar, thereby facilitating the handling of the tools. It allows easy cleaning and sterilization. The sealing effect is very good even with frequent and rapid replacement of the instruments inserted through the trocar sleeve into the abdominal cavity. It is more hygienic in purity and avoids xeflux of gas from the peritoneal cavity during surgery.

The accompanying drawing shows an exemplary solution of a trocar membrane closure. In FIG. 1 is a sectional view of the capsule housing; FIG. 2 is a perspective view of the spike; FIG. 3 is a bottom plan view, FIG. 4 is an elevational view of the upper insert, and FIG. 5 shows a folded trocar in perspective.

The trocar with a second diaphragm seal for laparoscopy consists of a capsule 1 (Fig. 1) which is provided with a needle 2 at one end. In the cap 2 (the lower insert <4 and the upper insert 5 are rotated, which are captured by the cap 3 The lower insert A is nnsirede with a cross bore 7 (Fig. 3) and the upper insert 5 is provided with a cylindrical bore 8 in the center (Fig. 4) In the housing 1 is through the cap 3, the upper insert 5 and the lower insert. 4, a push-in spike 6 at the upper end provided with a button 9 (FIG. 5).

Upon introduction of a trocar into an abdominal cavity filled with artificial gas, the lower insert 4 and the upper insert 5 function as a diaphragm valve which allows the spike 6 or other instrument to easily penetrate into the abdominal cavity and close them sufficiently with the pressurized pneumoperitoneone.

Claims (1)

Membrane closure of a second laparoscopic puncture puncture consisting of a slide spike and a capsule at one end provided with a cap with a cap, characterized in that the capsule (2j of the capsule (1) has a lower insert (4) and an upper insert (5), the lower insert (4) has a cross-shaped opening (7) and the upper insert (5) is provided with a cylindrical opening (8).