Specimen collection bag used for minimally invasive surgery

Abstract

The invention discloses a specimen collection bag used for a minimally invasive surgery. The specimen collection bag comprises a transparent film plastic bag, a spring skeleton, a binding-off band, and a binding-off band lock catch. The spring skeleton is formed by a guiding head, a group of elastic support bands in the same length and tightening rings. The elastic support bands are distributed in an umbrella shape. The other end of each elastic support band is provided with the tightening ring, and one end is gathered on the guiding head. In a natural state, the spring skeleton is a conical skeleton. The binding-off band are divided into left and right symmetric segments and the left and right segments are provided with barbs. The binding-off band lock catch is a hollow cone-frustums shell. The top of the cone is provided with a non-return hole. The transparent film plastic bag covers and is fixed on the inner wall of the conical skeleton. The binding-off band passes through the tightening ring of each elastic support band in sequence. The left and right symmetric ends pass through the corresponding non-return hole of the binding-off band lock catch. The specimen bag can automatically open a bag opening, and directions of a specimen long axis and a bag body long axis are adjusted and kept consistent. The specimen bag has a function of increasing diameter of an incision when passing through a minimally invasive incision, so as to reduce surgery operation steps of doctors, reduce surgery operation difficulty, and reduce surgery risks.

Description

technical field [0001] The invention relates to a specimen collection bag, in particular to a specimen collection bag used in minimally invasive surgery, belonging to a medical device. Background technique [0002] With the development of science and technology, minimally invasive surgery (such as laparoscopic surgery, thoracoscopic surgery, arthroscopic surgery, endoscopic surgery, surgery through the natural orifice of the human body, etc.) It has the advantages of less pain for patients, faster recovery, and leaving little or no scars. It has been widely used in clinical practice. Usually in the surgical area (usually in the body cavity, such as the abdominal cavity, thorax, joint cavity, intestinal cavity, etc.), the specimen (such as human diseased tissue, foreign body, etc.) needs to be taken out after being separated from the human body, and due to the small incision of minimally invasive surgery , it is generally not easy to take out of the body directly. The method...

AI Technical Summary

Problems solved by technology

However, even if the long axis of the specimen 11 is in the same direction as the long axis of the bag body when the specimen 11 is put into the specimen bag 14, when the specimen bag 14 is taken out from the incision, it often occurs that the flexible plastic specimen bag 14 is extruded by the incision and the harder specimen The direction of the major axis changes (see figure 1 ) or soft specimens further gather at the bottom of the bag, increasing the diameter of the bottom of the bag, changing the long axis of the specimen, making it difficult to take out the specimen bag

In the end, the surgical incision had to be enlarged to take out the specimen, which reduced the value of minimally invasive surgery and increased patient pain and postoperative recovery time

[0005] In addition, due to the elasticity of human tissue, the minimally invasive incision will retract without support and the diameter of the incision will become smaller; similarly, if the minimally invasive incision is subjected to expansion force, it will also make the incision length The incision is stretched and the diameter becomes larger

Traditional surgical specimen bag 14 such as figure 1 As shown, due to the soft structure, when passing through the minimally invasive incision, the incision will shrink due to the lack of support, which makes it more difficult for the specimen bag 14 to pass through the incision (see figure 1 )

[0006] Faced with the above-mentioned problems of taking specimens from minimally invasive incisions, it has always been a technical problem that this field is eager to solve, and no better solution has been found so far

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