CN219439242U

CN219439242U - Tissue traction device

Info

Publication number: CN219439242U
Application number: CN202222954526.6U
Authority: CN
Inventors: 张伟; 张尚懿; 卢攀; 刘心怡; 付勤文
Original assignee: Individual
Current assignee: Chengdu Shangyi 19 Technology Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-08-01
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a tissue traction device which comprises a clamping clamp and a traction needle, wherein the clamping clamp and the traction needle can be mutually separated and connected, the clamping clamp comprises two clamping plates and an elastic assembly arranged between the two clamping plates, a first through hole with two through ends is formed in the clamping plates along the clamping direction, a second sunk concave hole is formed in the end face of the clamping end of the clamping plate, the traction needle comprises a needle tube and a flexible needle body, a bending part is arranged at the front end of the needle tube, a handheld part is arranged at the tail end of the needle tube, the flexible needle body can move in the needle tube, and the flexible needle body is inserted into the second concave hole after pushing the bending part to bend. The device can improve the laparoscopic surgery efficiency, reduce the trauma of patients and the laparoscopic surgery difficulty, and has extremely high application value and extremely good application prospect.

Description

Tissue traction device

Technical Field

The utility model relates to the field of medical equipment, in particular to a tissue traction device which does not occupy a laparoscopic channel.

Background

Laparoscopic surgery (laparoscopic surgery) is a surgical procedure that may provide less risk, less patient trauma, and/or reduced surgical time. In a typical laparoscopic procedure, 3-5 channels are routinely required. The surgeon performs the procedure on the target tissue using laparoscopic surgical instruments through these channels, often requiring the gallbladder or other organ to be pulled for exposure during any laparoscopic procedure.

However, exposing tissue often requires more than two instruments, but clinically requires access to perform other procedures simultaneously, and thus often experiences insufficient access, increased access to the tissue increases surgical trauma, and limitations in the space between the inside and outside of the laparoscopic procedure do not allow for unlimited access. In particular, the surgical technique is developing from minimally invasive to ultra-minimally invasive, and in clinical practice, single Kong Shoushu is rapidly developing, single-hole laparoscopic surgery is performed by guiding 2-3 instruments through a small hole, the operation space left for a surgeon in vitro and in vivo is smaller, and single Kong Fuqiang mirrors are more difficult to expose tissues due to the chopstick effect, so that a multidirectional automatic traction device which does not occupy channels is more needed. For this reason, a new instrument is urgent to solve the above problems.

Disclosure of Invention

The utility model aims to realize omnibearing automatic continuous traction and exposure of various tissues under laparoscope without occupying a channel on the basis of the current laparoscopic surgery, and the number of surgeons is not required to be increased.

The scheme of the utility model is as follows:

a tissue pulling device comprises a grasping clip and a pulling needle which can be separated and connected with each other,

the grabbing clamp comprises two clamping plates and an elastic component arranged between the two clamping plates, a first through hole with two ends communicated is arranged in the clamping plates along the clamping direction, a second concave hole sinking inwards is arranged on the end face of the clamping end on the clamping plate,

the traction needle comprises a needle tube and a flexible needle body, the front end of the needle tube is provided with a bending part, the tail end of the needle tube is provided with a hand-held part, the flexible needle body can move in the needle tube,

the needle tube of the traction needle passes through the first through hole, and the flexible needle body is inserted into the second concave hole after pushing the bending part to bend.

In the above technical scheme, the first through hole and the through two concave holes are arranged on the outer surface of the clamping end of the clamping plate.

In the above technical scheme, the first through hole is communicated from the tail of the clamping plate to two ends of the end face of the clamping end.

In the technical scheme, other parts of the needle tube except the bending part are rigid needle tubes.

In the above technical scheme, the surface of holding end sets up to the inclined plane, and first through-hole sets up the top at the second shrinkage pool.

In the above technical scheme, the first through hole and the second concave hole are arranged in parallel up and down.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the scheme can realize the omnibearing continuous traction of tissues under the laparoscope in vitro, effectively reduce the puncture channel of the laparoscope operation and liberate hands of a surgeon, reduce the operation difficulty, reduce the operation time and the trauma of patients, and be beneficial to the performance of various laparoscope operations. The device can improve the laparoscopic surgery efficiency, reduce the trauma of patients and the laparoscopic surgery difficulty, and has extremely high application value and extremely good application prospect.

Drawings

The utility model will now be described by way of example and with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of the present solution;

FIG. 2 is a schematic view of the structure of the capture clip;

FIG. 3 is a cross-sectional block diagram of FIG. 2;

FIG. 4 is a schematic view of the structure of the draw needle;

FIG. 5 is a schematic view of the procedure of the present solution;

wherein: the clamping plate 1, the first through hole 2, the second concave hole 3, the needle tube 4, the bending part 5, the handheld part 6, the grasping clamp A, the traction needle B, the visceral tissue C and the abdominal wall D.

Detailed Description

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

As shown in fig. 1 and 5, the present embodiment is a schematic structure and a schematic view during operation, in which the grasping clip a is sent into the abdominal cavity by a laparoscopic instrument, the visceral tissue C is grasped by the grasping clip a by the instrument, the traction needle B is inserted into the abdominal cavity and inserted into the claw clip a, the hand-held portion 6 of the traction needle B remains outside the abdominal cavity of the patient, and the direction of the grasping clip a in the abdominal cavity can be changed by moving the hand-held portion 6, thereby driving the visceral tissue C to change in different directions.

As shown in fig. 2 and 3, the gripping clip a includes two clamping plates 1, and the two clamping plates 1 are connected to each other by an elastic member so as to have a clamping force therebetween. One end of each of the two clamping plates 1 is a clamping end, and a plurality of convex teeth are arranged on the end face of each of the clamping ends, and can be saw teeth or smooth strip teeth, so that the clamping ends can maintain enough clamping force in the clamping process without damaging visceral tissues.

In the clamping plate 1, along the clamping direction, a first through hole 2 is arranged from the tail end to the clamping end, the first through hole 2 penetrates through the whole clamping plate 1, a second concave hole 3 is arranged below the first through hole 2, and the sinking direction of the second concave hole 3 is parallel to the first through hole 2. The first through hole 2 allows the traction needle B to enter from the tail end of the clamping plate 1, protrude from the clamping end, and then the protruding end of the traction needle B is inserted into the second concave hole 3.

In order to make the traction needle B easier in the process of extending out of the first through hole 2 and entering the second concave hole 3, the outer surface of the clamping end on the clamping plate is set to be an inclined plane, the first through hole 2 is arranged above the second concave hole 3, an arc line path is formed between the outlet of the first through hole 2 and the inlet of the second concave hole 3, and the traction needle B is convenient to insert.

As shown in fig. 4, the traction needle B includes a needle tube 4, a bending portion 5 capable of bending is provided at the front end of the needle tube 4, a hand-held portion is provided at the tail end of the needle tube 4, a flexible needle body (not shown) is provided in the needle tube 4, the needle tube 4 is a rigid body, and the bending portion has a deformable property under the action of an external force.

In the actual use process, when the bending part 5 is not deformed, the bending part and the needle tube 4 keep the same axis, puncture on the abdominal cavity wall can be completed, and after the puncture enters the abdominal cavity, the traction needle B is guided to be inserted from the first through hole 2 of the clamping plate 1 and then passes through the first through hole 2. In the traction needle B, the flexible needle body is pushed to move forwards, the flexible needle body is pushed by external force in the moving process, and when the flexible needle body is contacted with the bending part 5, acting force on the flexible needle body is transmitted to the bending part 5, so that the bending part 5 deforms. Because the stress characteristic of the flexible needle body, the bending part 5 can bend along the acting point of the flexible needle body, and the end part of the bending part 5 can enter the second concave hole by adjusting the direction. In normal operation, unless the traction needle B and the grasping clip A are intentionally moved, the traction needle B and the grasping clip A are not separated by external force, so that the traction needle B and the grasping clip A form a fixedly connected whole, and the needle tube 4 can be driven by the shaking hand-held part 6 to move by shaking the needle tube 4 because the needle tube 4 is a rigid body.

The utility model is not limited to the specific embodiments described above. The utility model extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.

Claims

1. A tissue traction device is characterized by comprising a grasping clamp and a traction needle which can be separated and connected with each other,

2. The tissue pulling device according to claim 1, wherein the first through hole and the through hole are formed in an outer surface of the clamping end of the clamping plate.

3. A tissue pulling device according to claim 1 or 2, wherein said first through hole is formed through from the tail portion of the holding plate to both ends of the holding end face.

4. A tissue retraction device according to claim 1 wherein the remainder of the cannula other than the bend is rigid.

5. A tissue pulling device according to claim 2, wherein the outer surface of the gripping end is provided as a bevel, and the first through hole is provided above the second recess.

6. The tissue pulling device of claim 5 wherein the first through hole is juxtaposed up and down the second recess.