Puncture sheath for cyst removal and cyst removal device using the puncture sheath

Abstract

The invention relates to a puncture sheath used for cyst excision and a cyst excision device provided with the puncture sheath. The cyst excision device comprises the puncture sheath, the puncture sheath comprises a puncture sheath body with the axis extending in the front-back direction, the front end of the puncture sheath body is provided with an insertion segment inserted into a cyst, the insertion segment is provided with a front sheath umbrella capable of being opened and retracted in the radial direction, a rear sheath umbrella capable of being opened and retracted in the radial direction is arranged on the rear side of the insertion segment and on the puncture sheath body, and the front sheath umbrella and the rear sheath umbrella are matched to clamp the wall of the cyst. The cyst excision device further provides an excision structure, and the puncture sheath further comprises a drive structure used for driving the front sheath umbrella and the rear sheath umbrella to be opened and retracted in the radial direction. When the cyst excision device is used, the front sheath umbrella is inserted into the cyst, and the wall of the cyst is excised through the excision structure. Compared with the mode that in the prior art, cyst fluid is discharged first and then anhydrous alcohol is injected, the cyst is not likely to relapse because the top wall of the cyst is excised. Compared with an open operation in the prior art, an incision is small, and trauma to the body of a patient is small.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a puncture sheath for cyst resection and a cyst resection device using the puncture sheath. Background technique [0002] At present, B-ultrasound-guided puncture technology for treating kidney stones is relatively mature. Similarly, B-ultrasound can also guide renal cyst puncture, release the cyst fluid inside the cyst, and then inject absolute alcohol into the inside of the cyst. Although the trauma is small, the cyst is healing. In the end, it will still compress the kidneys, and it is very easy to relapse. Then came the decompression of the cyst roof wall, that is, the top of the cyst was removed by open surgery to relieve the compression of the cyst fluid on the kidney, which greatly reduced the chance of cyst recurrence. However, open surgery requires a large wound on the human body. The wound heals slowly and is prone to complications, resulting in greater phy...

AI Technical Summary

Problems solved by technology

However, open surgery requires a large wound on the human body, the wound heals slowly, and complications are prone to occur, resulting in greater trauma to the patient's body

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