A diaphragm type body cavity occlusion device

Abstract

The invention relates to diaphragm type body cavity blocking equipment which is provided with a handle, a tuba handle, a shaping wire, a film and an inner core; the two ends of the shaping wire are fixed to the far end of the tube handle and the inner core respectively; the shape of the film in the preparation state is that one or more edges are in a linear shape, and other edges are a polygon composed of straight lines or curves, an axially symmetric figure or a face in an irregular shape, one edge, in the linear shape, on the film is provided with a plurality of through holes in the sideline direction, the inner core penetrates through the through holes, the other side edge opposite to the linear-shaped edge of the film wraps and is fixed to the shaping wire, and the position between the shaping wire and the inner core is in a spiral shape under the use state of the film.The shape of a blocking object of the diaphragm type body cavity blocking equipment can be controlled precisely, the blocking object is placed into a body cavity conveniently, completely blocking and one-time taking out of foreign matter can be achieved, and various situations in the operation process can be coped with flexibly.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a membrane-type body cavity occlusion instrument. Background technique [0002] The body cavity occlusion device is one of the commonly used clinical surgical devices, which is used for the occlusion of body cavities and / or the removal of foreign bodies, such as in the urinary system, digestive tract, and vascular lumens. [0003] Taking urinary calculi as an example, the incidence of urinary calculi is as high as 5%-10%, which can be found in any part of the kidney, bladder, ureter and urethra, and kidney and ureter calculi are the most common. Ureteroscopic lithotripsy is carried out through the natural orifice of the human body, which has the advantages of small trauma and accurate lithotripsy, and is currently one of the main treatment methods for ureteral calculi. However, the current ureteroscopic lithotripsy also has certain deficiencies: 1. Stones and stone f...

AI Technical Summary

Problems solved by technology

However, the current ureteroscopic lithotripsy also has certain deficiencies: 1. Stones and stone fragments in the middle and upper ureters are easily washed back into the kidney by the perfusion water flow or the recoil force of the lithotripsy tool; 2. Residual stone fragments in the ureter lumen Lack of quick and effective way to take out

However, the above-mentioned occlusion device still has the following defects: (1) the guide wire passes through the cavity of the occlusion and is fixed with the distal end of the occlusion, so that the proximal end of the guide wire can be pulled to achieve axial compression of the occlusion , to form a plug-like blockage, but the shape of the formed blockage is uncertain, whether it can completely block and prevent the effect of stone incarceration is also uncertain, and some stones escape during the stone removal process. Possibly; (2) Only the distal end of the occluder is fixed with the guide wire, so during the process of inserting the device into the ureter, the membranous occluder will be twisted and deformed due to the influence of urine, stones, etc., which is inconvenient for the operation (3) The shape of the plug-like occlusion can be changed by artificially pulling the guide wire, but the specific shape of the plug-like occluder is uncontrollable and cannot be handled flexibly Various situations during surgery

[0004] Therefore, there is an urgent need for a body cavity occlusion device that can be precisely controlled in shape, facilitates insertion into the body cavity, can achieve comprehensive occlusion and one-time removal of foreign bodies, and can flexibly respond to various situations during the operation. The device has not yet been reported

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