Excised tissue collector for laparoscopic operations

Abstract

The invention discloses an excised tissue collector for laparoscopic operations. The excised tissue collector comprises two memory alloy flat clamps; one ends of the memory alloy flat clamps penetrate holes of two sides of a collecting bag and are connected at the confluence through a heat shrinkable sleeve, and a double-sheet memory alloy flat clamp ring is obtained; the other ends of the memory alloy flat clamps are connected to an inner connecting plug fixed to an inner sheath bar, the inner sheath bar is arranged in an outer sheath bar provided with a double-lug handle, and the inner sheath bar is provided with a signal-lug handle; the holes of the collecting bag are provided with a pull rope in a penetrated manner, and two ends of the pull rope penetrate the outer sheath rod to connect to a pull ring. The double-sheet memory alloy flat clamp ring is adopted, the bearing capacity is higher than that of a thin steel wire ring or elastic wire ring of the prior art, the connection of the double-sheet memory alloy flat clamp ring can be shore off during the clinical operation, instruments can be fetched from an operation channel, only the collecting bag and the pull rope are left inside a body, one operation channel can be omitted, doctor's operation is facilitated, and the pain of a patient can be reduced.

Description

technical field [0001] The invention belongs to the field of medical instruments, and in particular relates to a resected tissue collector for laparoscopic surgery. Background technique [0002] Endoscopic surgery is a minimally invasive surgery performed through small incisions. This type of surgery has small incisions, less postoperative pain, and faster recovery, so it has been more and more widely used. China's endoscopic minimally invasive surgery has experienced nearly 20 years of development, and has accumulated a lot of valuable experience. However, in the implementation of such operations, how to safely remove large pieces of surgically resected biological tissues through small incisions is a difficult problem encountered in the further development of endoscopic surgery; When liquid tissue or malignant tumor tissue remains in the body, fragmented tissue or overflowing fluid can easily lead to infection, complications, or the spread of cancer cells, endangering othe...

AI Technical Summary

Problems solved by technology

[0004] 1. A collection bag without an elastic device for opening. This kind of product is easy to implant into the abdominal cavity, but the mouth of the bag cannot be opened automatically. It needs to be opened with surgical forceps in the body for clinical use, which is not easy to operate.

[0005] 2. Collection bag with detachable connecting rod dispenser. This type of collection bag dispenser is detachable, and the dispenser can be reused. It needs to be disinfected before use, which is likely to cause cross-infection due to incomplete disinfection. The operation is complicated, the price is high, and it is difficult for doctors and patients to accept it. , there are not many clinical choices

[0006] 3. The collection bag with the stretching elastic device has a complex structure, difficult clinical operation, and high cost of use, because it is necessary to add a puncture hole when recovering the specimen, and the patient has an extra wound, which is unbearable for the patient.

[0007] And the excision tissue collector of prior art generally adopts thin steel wire ring or elastic wire ring to support collection bag, and the intensity of thin steel wire ring or elastic wire ring is too small, when excising larger tissue, thin steel wire ring and elastic wire Rings are often unable to carry the weight of the collection bag

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