Excision device for excision of internal tissue

Abstract

The invention relates to a medical instrument, in particular to an excision device for excision of internal tissue. The excision device includes a catheter, one end of the catheter is an extending endused for extending into the body of a patient. The other end is an operation end positioned outside the patient body; the extending end is provided with an opening and closing type blade end head; when the blade end head is in a closed state; a containing cavity is formed in the blade end, the containing cavity is communicated with the internal space of the catheter; the blade end head further comprises a plurality of cutting edges, when the cutting edge end is switched from the open state to the closed state, the cutting edges scratch tissue to-be-excised in the body of a patient to achievecutting of the tissue to-be-excised, and the excision device further comprises an operation component used for driving the blade end head to be switched between the open state and the closed state. According to the excision device, when tissue excision is conducted, the excised and separated tissue naturally falls into the containing cavity in the blade end, and the risk that the excised tissue isleft in the body of a patient is directly avoided.

Description

technical field [0001] The invention relates to a medical device, in particular to a resectator for internal tissue resection. Background technique [0002] In the field of medical surgery technology, in vivo tissue resection is a common surgical method. By removing the diseased tissue, it prevents the further spread of the diseased tissue, so as to achieve the purpose of treatment. Minimally invasive surgery is increasingly widely used because of small surgical incisions, less pain during the operation, and faster recovery of patients. [0003] In minimally invasive surgery, when tissue resection is involved, the current surgical method is to cut the tissue with a minimally invasive scalpel, surgical scissors, and a minimally invasive electric knife, and then separate the tissue from the body. Although this method is widely used , but in further research work, the inventor found that such a method still has shortcomings, specifically as follows: [0004] With the current ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method that can facilitate the collection and cleaning of tissue fragments and reduce the risk of tissue fragments remaining in the prior art in view of the problems that tissue fragments are not easy to collect and carry over risks in internal tissue resection surgery. in vivo tissue resection device

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