Trans-gastric laparoscopic surgery puncture outfit with anti-skidding and fixing functions

Abstract

The invention provides a transgastric laparoscopic surgery puncture outfit with anti-slip and fixing functions, which overcomes the surgery difficulties that a traditional puncture outfit cannot puncture into a gastral cavity, the gastral cavity cannot be tightly attached to an abdominal wall after puncture, and contents in the stomach easily flow back into an abdominal cavity through the puncture outfit to cause pollution and the like, and the puncture outfit enables the new technical surgery process to be more simplified, safer and more effective. Comprising a cannula assembly and a puncture assembly, the cannula assembly comprises a cannula seat and a cannula arranged at one end of the cannula seat, the puncture assembly comprises a puncture handle and a puncture needle arranged at one end of the puncture handle, and the puncture needle penetrates through the cannula in a sliding mode. The phenomenon that the cannula slides out of the gastral cavity, and the stomach and other visceral organs and blood vessels of a patient are injured due to repeated puncture can be effectively avoided, the situation that the whole puncture outfit is taken out when the instrument is pulled outwards is avoided, it is guaranteed that the percutaneous laparoscopic surgery is conducted smoothly, and the pain of the patient is relieved; the structure is simple, operation is convenient, time and labor are saved, and the protective fixing effect and the operation efficiency of the cannula are improved; the skin incision can be pulled, and the fixing effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laparoscopic minimally invasive surgical instruments, and in particular to a transgastric laparoscopic surgical puncture device with an anti-slip fixing function, which can be used for transgastric laparoscopic gastric submucosal tumor resection, transgastric laparoscopic early gastric cancer resection, transgastric laparoscopic gastric bleeding surgery, etc. Background Art

[0002] In the past decade, my country's digestive endoscopy technology has made rapid progress. Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) technologies are popular. Endoscopists are constantly challenging the limits of endoscopic technology, and the indications for endoscopic surgery are constantly expanding. For early gastric cancer that does not require lymph node dissection, benign gastric tumors, gastrointestinal stromal tumors of gastric origin, and giant gastric polyps, endoscopists have made breakthroughs from mucosal surgery and entered the field of serosal surgery. Endoscopic surgery relies on the operator to flexibly control the up and down, left and right swings of the endoscope and the rotation of the endoscope body, and use electrical energy equipment to complete the resection of the lesion. Although endoscopists have developed many new endoscopic tools, they are still unable to change the current situation of single-arm operation. Lesions in the upper stomach, especially at the gastroesophageal junction, are difficult to observe and remove because they require endoscopic inversion technology. Current endoscopic technology is still unable to remove large, deep lesions, or control bleeding and perforation during the resection process.

[0003] Laparoscopic intragastric surgery (LIGS) is a new surgical method. It extends traditional laparoscopic surgery from the serosal surface of the stomach to the mucosal surface of the gastric cavity, locates the lesions in the stomach, and uses laparoscopic instruments to complete the resection of the lesions and repair the wound surface. It is difficult to find tumors from the serosal surface of the abdominal cavity with conventional laparoscopy, but laparoscopic surgery can locate and remove tumors more accurately. It is different from the single-arm operation of endoscopic surgery, and the surgery can be completed under the supervision of the laparoscope using instruments in both hands of the surgeon. For lesions in the upper stomach, especially the gastroesophageal junction, traditional laparoscopic surgery can only perform proximal gastrectomy, which is very traumatic and has a poor quality of life. Therefore, those operations that were originally very difficult to operate with an endoscopic operation, which expanded the scope of resection and had a low quality of life due to traditional laparoscopic surgery, can be easily and smoothly completed with laparoscopic surgery.

[0004] However, transgastric laparoscopic surgery also has some technical difficulties. 1. How to insert the puncture device into the gastric cavity? The stomach is located in the abdominal cavity and has no direct contact with the abdominal wall. There is a large gap between the two. Traditional puncture devices can only be inserted into the abdominal cavity through the abdominal wall, but cannot be directly inserted into the gastric cavity; 2. During the operation, for delicate operations, the stomach must be fixed. How to keep it fixed for a long time; 3. Since the stomach wall is thin and soft, how to prevent gastric fluid from flowing back into the abdominal cavity through the puncture device and causing abdominal contamination; 4. During the operation, how to prevent the puncture device from slipping out of the gastric cavity and connecting to the outside of the abdominal wall and fixing it to the abdominal wall; 5. After the operation, how to effectively pull the puncture device out of the gastric cavity and minimize the damage to the gastric wall to achieve the purpose of minimally invasive surgery. All of these require a special transgastric laparoscopic surgical puncture device to ensure safe and effective operations.

[0005] The transgastric laparoscopic surgical puncture device is a minimally invasive surgical instrument, which is designed to establish a surgical channel for minimally invasive instruments to enter and exit the abdominal cavity during surgery. Usually, the transgastric laparoscopic surgical puncture device includes a cannula assembly and a puncture assembly. Among them, an air valve is provided on one side of the cannula end of the cannula assembly, and the puncture assembly runs through the cannula assembly. After the cannula assembly and the puncture assembly are inserted into the abdominal cavity as a whole, the puncture assembly is pulled out, and then the protective gas is injected into the cannula assembly through the air valve connected to the pneumoperitoneum machine, so that the inner wall of the abdominal cavity is effectively separated from the visceral tissue, and a surgical channel for minimally invasive instruments to enter and exit the abdominal cavity can be provided.

[0006] At present, during the operation, the puncture tubes for transgastric laparoscopic surgery on the market are directly inserted into the human body through the outer tube. Since the front end of the existing puncture tubes is basically smooth and difficult to fix after puncture, the outer tube of the puncture tube will slide down due to its own gravity or the contact during the operation, and even cause damage to organs and blood vessels in severe cases. At the same time, it is easy to pull out the entire puncture tube when pulling the inserted instrument out, affecting the operation and increasing the pain of the patient. Although the outer wall of some puncture tubes is provided with threads to increase the friction between the tube wall and the patient's abdominal wall, it is easy to cause bleeding from the patient's abdominal wall during insertion and removal, and it is less effective in preventing the puncture tube from sliding down or being pulled out by mistake.

[0007] In summary, there is an urgent need to design a transgastric laparoscopic surgical puncture device with an anti-slip fixation function that overcomes the above-mentioned problems. Summary of the invention

[0008] The object of the present invention is to provide a transgastric laparoscopic surgical puncture device with anti-slip fixing function which overcomes the above-mentioned problems.

[0009] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a transgastric laparoscopic surgical puncture device with anti-slip fixing function, comprising:

[0010] A cannula assembly and a puncture assembly, wherein the cannula assembly comprises a cannula seat and a cannula arranged at one end of the cannula seat, and the puncture assembly comprises a puncture handle and a puncture needle arranged at one end of the puncture handle, and the puncture needle is slidably arranged in the cannula;

[0011] The outer wall of the sleeve away from the sleeve seat is evenly provided with a plurality of grooves, and elastic telescopic parts are respectively provided in the grooves. The outer wall of the sleeve close to the sleeve seat is provided with a control component, and the control component is used to cause the elastic telescopic parts to protrude out of the grooves or extend into the grooves.

[0012] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0013] Furthermore, the elastic telescopic component includes an arc-shaped spring piece, both ends of which are slidably connected to the inner walls of both sides of the groove, and the middle of the arc-shaped spring piece is fixedly connected to the control component.

[0014] Furthermore, the control component includes a control knob connected to the outer wall of the sleeve by threaded rotation and a plurality of first pull ropes circumferentially slidably arranged on the control knob near one end of the arc-shaped spring piece, and the other ends of the first pull ropes are respectively inserted into the groove from the sleeve wall and fixedly connected in the middle of the inner wall of the corresponding arc-shaped spring piece.

[0015] Furthermore, an arcuate slot is provided inside one end of the control knob close to the arcuate spring sheet, and a plurality of slide beads corresponding to the first pull rope are provided in the arcuate slot, and the first pull rope passes through the arcuate slot and is fixedly connected to the corresponding slide beads.

[0016] Furthermore, the inner wall of the sleeve is provided with a channel for the first pull rope to pass through, and one end port of the channel corresponds to the middle of the inner wall of the arc-shaped spring piece. The outer wall of the first pull rope located in the groove is provided with a first return spring, and the two ends of the first return spring are respectively fixedly connected to the middle of the arc-shaped spring piece and the inner wall of the groove.

[0017] Furthermore, slide grooves are respectively provided on both sides of the inner wall of the groove, a sliding block is provided in the slide groove, and opposite side walls of the sliding block are respectively fixedly connected to two ends of the arc-shaped spring sheet.

[0018] Furthermore, arc-shaped grooves are respectively provided on both sides of one end of the sleeve close to the control knob, and the arc-shaped pulling blocks are respectively provided in the arc-shaped grooves. The end of the arc-shaped pulling block away from the sleeve is provided with a pulling arm, and the middle of the arc-shaped pulling block is fixedly connected to the arc-shaped groove through a second return spring;

[0019] The pulling arm is arranged on a side of the arc-shaped pulling block close to the control knob. When the control knob rotates, the two arc-shaped pulling blocks move toward or away from each other.

[0020] Furthermore, an annular groove is provided on the outer wall of the sleeve, an outer thread is provided on the inner wall of the annular groove, an inner thread matching the outer thread is provided on the inner wall of the control knob, and a height of the annular groove is greater than a height of the control knob.

[0021] Furthermore, the arc-shaped groove is connected to the annular groove through a sliding hole, a wedge block is slidably provided in the sliding hole, one end of the wedge block is fixedly connected to a side wall of the arc-shaped groove through a third return spring, and the other end of the third return spring is in contact with the control knob.

[0022] Furthermore, the number of the grooves and arc-shaped spring pieces is at least three.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The transgastric laparoscopic surgical puncture device with anti-slip fixation function of the present invention can greatly improve the safety and feasibility of the operation compared with the traditional laparoscopic surgical puncture device. For exophytic tumors in the greater curvature of the stomach, laparoscopic wedge resection is very advantageous. However, for endogenous tumors in the upper part of the stomach, the posterior wall, and the gastroesophageal junction, it is very challenging. Most laparoscopic surgeons will ask endoscopists to locate during the operation, or directly open the anterior wall of the gastric body to find the lesion; sometimes, in order to find the lesion of the fundus of the stomach, it is necessary to extend the incision of the anterior wall of the gastric body, resulting in gastric fluid overflow and contamination of the abdominal cavity; the field of view of traditional abdominal surgery is from the bottom to the top, and the positioning of the lesion is not accurate due to the interference of gastric mucosal folds; during the resection process, the surgeon is prone to excessive pulling of the gastric wall, resulting in too large a resection range, and too much gastric wall is removed, and there is a risk of stenosis or reflux after surgery; after the lesion is removed, the gaps in the anterior and posterior walls of the arm need to be sutured, the suture range is large, the difficulty is high, the operation time is long, and the incidence of postoperative anastomotic fistula is high. However, the operator of transgastric laparoscopic surgery uses a laparoscope to enter the gastric cavity and directly observe the tumor. The gastric cavity is filled, which reduces the interference of gastric mucosal folds on the lesion; the electric knife marks a clear circumferential resection range, and the lesion is completely removed along the marked line; there is no excessive traction on the gastric wall, and there is no need to resect the gastric wall; the incision is accurately sutured with absorbable sutures, and there is less anastomotic leakage after surgery; the operation time is shortened to avoid contamination of the abdominal cavity with gastric fluid; the operation is small in trauma, blood loss, and pain, and the intestinal function recovers quickly after surgery, and the hospitalization time is short. Transgastric laparoscopic surgery allows the laparoscope to enter the mucosal surface of the gastric cavity from the serosal surface of the stomach, making laparoscopic surgery enter the era of sheath surgery. In order for this technology to be carried out smoothly, the puncture device must be allowed to pass through the abdominal wall, the abdominal cavity, and then through the gastric wall to puncture into the gastric cavity, and the gastric wall must be well fixed and the puncture device is not easy to slip. The present invention can promote the safe and effective development of this technology.

[0025] 2. The transgastric laparoscopic surgical puncture device with anti-slip and fixing function of the present invention is provided with a plurality of elastic telescopic components on the outer wall of the sleeve, and a control component is provided at one end of the sleeve close to the sleeve seat. The elastic telescopic components can be retracted into the groove of the sleeve wall and protruded out of the groove through the control component. When the sleeve is inserted or pulled out, the elastic telescopic components are retracted into the groove of the sleeve wall, which can effectively avoid damage to the patient's abdominal wall and friction bleeding during the insertion and removal of the sleeve; when the elastic telescopic components protrude out of the groove, the sleeve can be fixed on the patient's abdomen, effectively avoiding the sleeve from sliding down and damaging the patient's organs and blood vessels due to various reasons, and at the same time avoiding the entire puncture device from being pulled out during the process of pulling the instrument out, thereby ensuring the smooth progress of the operation and alleviating the patient's pain.

[0026] 3. The transgastric laparoscopic surgical puncture device with anti-slip fixing function of the present invention has a control knob, one end of the first pull rope is circumferentially slidably set on the end face of the control knob, and the other end of the first pull rope is fixed in the middle of the arc-shaped spring piece. The doctor rotates the control knob outside the patient's body to drive the first pull rope to move outward or inward. When moving outward, the arc-shaped spring piece can be retracted into the groove to prevent it from causing damage to the patient's abdominal wall during the process of inserting and removing the sleeve; when the first pull rope moves inward, the arc-shaped spring piece can be protruded out of the groove again, and the arc-shaped spring piece can be stuck in the patient's abdominal wall to prevent the sleeve from sliding up and down at will. The structure is simple, the operation is convenient, time and labor are saved, the protective and fixing effect of the sleeve is improved, and the doctor's surgical efficiency is improved.

[0027] 4. The transgastric laparoscopic surgical puncture device with anti-slip fixing function of the present invention is provided with arc-shaped grooves on both sides of the outer wall of the sleeve, an arc-shaped traction block is provided in the arc-shaped groove, and a second reset spring is provided between the arc-shaped traction block and the arc-shaped groove. The wedge-shaped block is pushed to slide between the arc-shaped traction block and the groove by the control knob, and the wedge-shaped block is controlled to push the arc-shaped traction block to move outside the arc-shaped groove, so that the two arc-shaped traction blocks move away from each other, so that the skin incision is pulled open by the arc-shaped traction block, and the sleeve assembly is fixed on the patient's skin surface, further improving the fixing effect; when inserting or removing the sleeve, the control knob is rotated in the opposite direction to reset the wedge-shaped block under the elastic force of the third spring, and the arc-shaped traction block enters the arc-shaped groove at the same time, so as to avoid damage to the patient's abdominal wall when inserting and removing the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic cross-sectional structure diagram of a transgastric laparoscopic surgical puncture device with anti-slip fixing function provided by the present invention;

[0029] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0030] Figure 3 yes Figure 1 The enlarged schematic diagram of point B in the middle;

[0031] Description of reference numerals:

[0032] 1. sleeve assembly; 11. sleeve seat; 12. sleeve; 121. groove; 122. channel; 123. slide groove; 124. slider; 125. arc groove; 126. annular groove; 1261. external thread; 13. elastic telescopic component; 131. arc spring piece;

[0033] 2. puncture assembly; 21. puncture handle; 22. puncture needle;

[0034] 3. Control assembly; 31. Control knob; 311. Internal thread; 32. First pull rope; 33. Arc-shaped slide groove; 34. Slide ball; 35. First return spring;

[0035] 4. arc-shaped pulling block; 41. pulling arm; 42. second return spring; 43. wedge-shaped block; 44. third return spring; 45. sliding hole. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] See also Figures 1 to 3 A transgastric laparoscopic surgical puncture device with anti-slip fixing function comprises a sleeve assembly 1 and a puncture assembly 2, wherein the sleeve assembly 1 comprises a sleeve seat 11 and a sleeve 12 arranged at one end of the sleeve seat 11, and the puncture assembly 2 comprises a puncture handle 21 and a puncture needle 22 arranged at one end of the puncture handle 21, wherein the puncture needle 22 is slidably inserted into the sleeve 12;

[0038] The outer wall of the sleeve 12 at one end away from the sleeve seat 11 is evenly provided with a plurality of grooves 121, and elastic telescopic components 13 are respectively provided in the grooves 121. The outer wall of the sleeve 12 at one end close to the sleeve seat 11 is provided with a control component 3, and the control component 3 is used to cause the elastic telescopic component 13 to protrude out of the groove 121 or extend into the groove 121.

[0039] In the present invention, the elastic telescopic component 13 can be retracted into the groove 121 of the side wall of the sleeve 12 or protruded out of the groove 121 by controlling the component 3. Specifically, when inserting or removing the sleeve 12, the elastic telescopic component 13 is retracted into the groove 121 of the sleeve wall, which can effectively avoid damaging the patient's abdominal wall and causing frictional bleeding during the insertion and removal of the sleeve 12; when the elastic telescopic component 13 protrudes out of the groove 121, the sleeve 12 can be fixed on the patient's abdomen, effectively avoiding the sleeve 12 from sliding down due to various reasons and damaging the patient's organs and blood vessels, and at the same time avoiding the entire puncture device from being pulled out during the process of pulling the device out, ensuring the smooth progress of the operation and alleviating the patient's pain.

[0040] Preferably, the elastic telescopic component 13 includes an arc-shaped spring piece 131 , both ends of which are slidably connected to the inner walls of both sides of the groove 121 , and the middle of the arc-shaped spring piece 131 is fixedly connected to the control component 3 .

[0041] In this embodiment, since the arc-shaped spring piece 131 has a certain elastic force, the control component 3 can pull the protruding part in the middle of the arc-shaped spring piece 131 into the groove 121. When pulling, the two ends of the arc-shaped spring piece 131 slide toward the two sides of the groove 121 respectively, so that the arc-shaped spring piece 131 can be straightened and attached to the groove 121 to avoid protruding from the groove 121; on the other hand, the control component 3 can also reset the arc-shaped spring piece 131 so that it protrudes from the groove 121 to grasp the patient's abdominal wall.

[0042] Preferably, the control component 3 includes a control knob 31 connected to the outer wall of the sleeve 12 by threaded rotation and a plurality of first pull ropes 32 circumferentially slidably arranged on the control knob 31 near one end of the arc-shaped spring piece 131, and the other ends of the first pull ropes 32 respectively penetrate into the groove 121 from the wall of the sleeve 12 and are fixedly connected in the middle of the inner wall of the corresponding arc-shaped spring piece 131.

[0043] In this embodiment, the doctor rotates the control knob 31 outside the patient's body to drive the first pull rope 32 to move outward or inward. When moving outward, the arc-shaped spring piece 131 can be retracted into the groove 121 to prevent it from causing damage to the patient's abdominal wall during the insertion and removal of the sleeve; when the first pull rope 32 moves inward, the arc-shaped spring piece 131 can be protruded out of the groove 121 again, and the arc-shaped spring piece 131 can be stuck in the patient's abdominal wall to prevent the sleeve 12 from sliding up and down at will.

[0044] Preferably, an arc-shaped slide groove 33 is provided inside one end of the control knob 31 close to the arc-shaped spring piece 131, and a plurality of slide beads 34 corresponding to the first pull rope 32 are provided in the arc-shaped slide groove 33, and the first pull rope 32 passes through the arc-shaped slide groove 33 and is fixedly connected to the corresponding slide beads 34. When the control knob 31 is rotated, the slide beads 34 drive the first pull rope 32 to rotate in the arc-shaped slide groove 33, so that the first pull rope 32 hardly rotates and only moves up and down, thereby preventing the first pull rope 32 from being twisted and affecting its use.

[0045] Preferably, the inner wall of the sleeve 12 is provided with a channel 122 for the first pull rope 32 to pass through, one end of the channel 122 corresponds to the middle of the inner wall of the arc-shaped elastic piece 131, and the outer wall of the first pull rope 32 located in the groove 121 is sleeved with a first return spring 35, and the two ends of the first return spring 35 are respectively fixedly connected to the middle of the arc-shaped elastic piece 131 and the inner wall of the groove 121. The first pull rope 32 pulls the arc-shaped elastic piece 131 along the radial direction of the sleeve 12 in the middle of the inner wall of the arc-shaped elastic piece 131, which can improve the pulling effect and save more labor in structure.

[0046] Preferably, two sides of the inner wall of the groove 121 are respectively provided with sliding grooves 123 , a slider 124 is provided in the sliding groove 123 , and opposite side walls of the slider 124 are respectively fixedly connected to two ends of the arc-shaped elastic piece 131 .

[0047] In another embodiment, arc-shaped grooves 125 are respectively formed on both sides of one end of the sleeve 12 close to the control knob 31, and the arc-shaped pulling blocks 4 are respectively provided in the arc-shaped pulling blocks 125. The end of the arc-shaped pulling blocks 4 away from the sleeve 12 is provided with a pulling arm 41, and the middle of the arc-shaped pulling block 4 is fixedly connected to the arc-shaped groove 125 through a second return spring 42;

[0048] The pulling arm 41 is disposed on one side of the arc-shaped pulling block 4 close to the control knob 31 . When the control knob 31 rotates, the two arc-shaped pulling blocks 4 move toward or away from each other.

[0049] In this embodiment, when the control knob 31 is rotated, it can drive the two arc-shaped pulling blocks 4 to move toward or away from each other, so that the two arc-shaped pulling blocks 4 can pull and fix the skin incision while the arc-shaped spring piece 131 grasps the abdominal wall, which can improve the fixing effect of the puncture device.

[0050] The outer wall of the sleeve 12 is also provided with an annular groove 126 , the inner wall of the annular groove 126 is provided with an external thread 1261 , the inner wall of the control knob 31 is provided with an internal thread 311 matching the external thread 1261 , and the height of the annular groove 126 is greater than the height of the control knob 31 .

[0051] like Figure 3 As shown, the arc groove 125 is connected to the annular groove 126 via a sliding hole 45, and a wedge block 43 is slidably provided in the sliding hole 45. One end of the wedge block 43 is fixedly connected to a side wall of the arc groove 125 via a third return spring 44, and the other end of the third return spring 44 is in contact with the control knob 31.

[0052] In this embodiment, the shape of the wedge block 43 is as follows: Figure 3 As shown, by controlling the knob 31 to push the wedge block 43 to slide between the arc-shaped pulling block 4 and the arc-shaped groove 125, the wedge block 43 is controlled to push the arc-shaped pulling block 4 to move toward the outside of the arc-shaped pulling block 125, thereby realizing the opposite movement of the two arc-shaped pulling blocks 4, thereby pulling the skin incision open through the arc-shaped pulling block 4, and fixing the sleeve assembly on the patient's skin surface, further improving the fixing effect; when inserting or removing the sleeve 12, the control knob 31 is rotated in the opposite direction to reset the wedge block 43 under the elastic force of the third reset spring 44, and at the same time, the arc-shaped pulling block 4 enters the arc-shaped groove 125, thereby avoiding damage to the patient's abdominal wall when inserting and removing the sleeve.

[0053] Preferably, the number of the grooves 121 and the arc-shaped elastic pieces 131 is at least three.

[0054] The present invention is further described above in conjunction with the embodiments, but the present invention is not limited to the above-mentioned implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A transgastric laparoscopic surgical puncture device with an anti-slip fixing function, comprising a sleeve assembly (1) and a puncture assembly (2), wherein the sleeve assembly (1) comprises a sleeve seat (11) and a sleeve (12) arranged at one end of the sleeve seat (11), and the puncture assembly (2) comprises a puncture handle (21) and a puncture needle (22) arranged at one end of the puncture handle (21), wherein the puncture needle (22) is slidably inserted into the sleeve (12), and is characterized in that: The outer wall of the sleeve (12) at one end away from the sleeve seat (11) is evenly provided with a plurality of grooves (121), and elastic telescopic components (13) are respectively arranged in the grooves (121). The outer wall of the sleeve (12) at one end close to the sleeve seat (11) is provided with a control component (3), and the control component (3) is used to cause the elastic telescopic component (13) to protrude out of the groove (121) or extend into the groove (121).

2. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 1, characterized in that: The elastic telescopic component (13) comprises an arc-shaped spring piece (131), the two ends of the arc-shaped spring piece (131) are slidably connected to the inner walls of the groove (121) at both sides, and the middle of the arc-shaped spring piece (131) is fixedly connected to the control component (3).

3. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 2, characterized in that: The control assembly (3) comprises a control knob (31) connected to the outer wall of the sleeve (12) by threaded rotation and a plurality of first pull ropes (32) circumferentially slidably arranged on the control knob (31) near one end of the arc-shaped spring piece (131), the other ends of the first pull ropes (32) respectively penetrate into the groove (121) from the wall of the sleeve (12) and are fixedly connected in the middle of the inner wall of the corresponding arc-shaped spring piece (131).

4. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 3, characterized in that: An arc-shaped slide groove (33) is provided inside one end of the control knob (31) close to the arc-shaped spring sheet (131), and a plurality of slide beads (34) corresponding to the first pull rope (32) are provided in the arc-shaped slide groove (33). The first pull rope (32) passes through the arc-shaped slide groove (33) and is fixedly connected to the corresponding slide beads (34).

5. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 3, characterized in that: The inner wall of the sleeve (12) is provided with a channel (122) for the first pull rope (32) to pass through, and one end of the channel (122) corresponds to the middle of the inner wall of the arc-shaped spring piece (131). The outer wall of the first pull rope (32) located in the groove (121) is sleeved with a first return spring (35), and the two ends of the first return spring (35) are respectively fixedly connected to the middle of the arc-shaped spring piece (131) and the inner wall of the groove (121).

6. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 2, characterized in that: Slide grooves (123) are respectively provided on both sides of the inner wall of the groove (121), a slider (124) is provided in the slide groove (123), and opposite side walls of the slider (124) are respectively fixedly connected to two ends of the arc-shaped spring sheet (131).

7. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 3, characterized in that: The sleeve (12) is provided with arc-shaped grooves (125) on both sides of one end close to the control knob (31), and the arc-shaped pulling blocks (4) are provided in the arc-shaped pulling blocks (125). The end of the arc-shaped pulling blocks (4) away from the sleeve (12) is provided with pulling arms (41), and the middle of the arc-shaped pulling blocks (4) is fixedly connected to the arc-shaped groove (125) via a second return spring (42); The pulling arm (41) is arranged on a side of the arc-shaped pulling block (4) close to the control knob (31); when the control knob (31) rotates, the two arc-shaped pulling blocks (4) move towards or away from each other.

8. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 7, characterized in that: The outer wall of the sleeve (12) is also provided with an annular groove (126), the inner wall of the annular groove (126) is provided with an external thread (1261), the inner wall of the control knob (31) is provided with an internal thread (311) matching the external thread (1261), and the height of the annular groove (126) is greater than the height of the control knob (31).

9. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 8, characterized in that: The arc-shaped groove (125) and the annular groove (126) are connected via a sliding hole (45), a wedge block (43) is slidably arranged in the sliding hole (45), one end of the wedge block (43) is fixedly connected to a side wall of the arc-shaped groove (125) via a third return spring (44), and the other end of the third return spring (44) is in contact with the control knob (31).

10. The transgastric laparoscopic surgical puncture device with anti-slip fixing function according to claim 2, characterized in that: The number of the grooves (121) and the arc-shaped elastic sheets (131) is at least three.

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