A device for creating a laparoscope working channel

Abstract

The present invention provides a laparoscope working channel creation device, which belongs to the field of medical device technology. The present invention provides a laparoscope working channel creation device, comprising an inner push rod and a first sleeve, wherein the inner push rod is inserted into the first sleeve, the lower end of the inner push rod is provided with a push-opening tip, the push-opening tip is located below the first sleeve, the lower end of the first sleeve is provided with an observation window, and multiple groups of observation windows are distributed along the circumference of the first sleeve, a connecting water pipe is provided on the side wall of the upper end of the first sleeve, the connecting water pipe is connected to the interior of the first sleeve, and a control valve is provided on the connecting water pipe, the upper end of the first sleeve is provided with a blocking piece, the blocking piece is located above the connecting water pipe, the upper end of the inner push rod passes through the blocking piece and is located above the first sleeve. The present invention provides a laparoscope working channel creation device, after being placed into the human body, the inner push rod is pulled out, the shoulder arthroscopy is extended into the first sleeve, and the observation window expands the observation range of the shoulder arthroscopy.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a laparoscope working channel creation device. Background Art

[0002] An arthroscope is a surgical instrument that combines an optical microscope with a magnifying glass. An endoscope is placed inside a joint and is primarily used as an auxiliary tool for surgery on patients experiencing shoulder pain and limited mobility. Sutures are required to close the wound after the procedure. A shoulder arthroscope is a rod-shaped optical instrument used for minimally invasive arthroscopic surgery. During surgery, the arthroscope lens enters the surgical area through the initial surgical incision, allowing real-time visualization of the various anatomical structures of the shoulder joint. The arthroscope replaces the human eye for observation and diagnosis and treatment of diseases, offering numerous advantages, including smaller incisions, less trauma, faster recovery, and relatively few complications. During shoulder arthroscopy, an incision of approximately 0.5-0.8 cm is usually made on the patient, and the shoulder arthroscope is inserted into the joint cavity through the surgical incision channel. During the operation, the surgical instruments and arthroscope will repeatedly enter and exit this channel. When the angle of joint movement changes, it is often difficult to find the "internal opening" within a short period of time. In addition, due to poor intraoperative vision, more tissue and synovium need to be removed, causing more damage to the soft tissue in the joint cavity and prolonging the operation time. Therefore, a sleeve is needed to maintain the surgical incision channel. In conventional shoulder arthroscopy, in order to maintain a clear surgical field and reduce intraoperative bleeding, a large amount of physiological saline needs to be continuously perfused to expand the joint cavity. However, due to the limitation of the sleeve, after the shoulder arthroscope enters the joint cavity through the sleeve, the field of view is limited, which is not conducive to surgical observation and leads to a prolonged operation time. Summary of the Invention

[0003] The purpose of the present invention is to provide a laparoscope working channel creation device, aiming to solve the problem of limited shoulder arthroscopy field of view caused by the sleeve.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a laparoscope working channel creation device, including an inner push rod and a first sleeve, the inner push rod is inserted into the first sleeve, and the lower end of the inner push rod is provided with a push-open tip, and the push-open tip is located below the first sleeve, and the lower end of the first sleeve is provided with an observation window, and multiple groups of the observation windows are distributed along the circumference of the first sleeve, and a connecting water pipe is provided on the side wall of the upper end of the first sleeve, and the connecting water pipe is connected to the interior of the first sleeve, and a control valve is provided on the connecting water pipe, and a sealing piece is provided at the upper end of the first sleeve, and the sealing piece is located above the connecting water pipe, and the upper end of the inner push rod passes through the sealing piece and is located above the first sleeve.

[0005] In one possible implementation, the blocking member includes a blocking seat, a first blocking piece and a second blocking piece. The blocking seat is arranged at the upper end of the first sleeve, the first blocking piece and the second blocking piece are arranged in the blocking seat, the first blocking piece is arranged above the second blocking piece, and the first blocking piece and the second blocking piece are made of a material with elastic deformation.

[0006] In a possible implementation, the height of the center of the first blocking piece is lower than the height of the edge thereof, and the height of the center of the second blocking piece is lower than the height of the edge thereof.

[0007] In a possible implementation, an upper anastomotic ring is provided on the lower end surface of the edge of the first blocking piece, and a lower anastomotic ring is provided on the upper end surface of the edge of the second blocking piece, and the upper anastomotic ring is matched with the lower anastomotic ring.

[0008] In one possible implementation, a skin positioning component is provided on the outer side of the first sleeve, the lower end of the skin positioning component is located above the observation window, the upper end of the skin positioning component is located below the connecting water pipe, and the lower end of the skin positioning component is telescopically arranged on the inner side of the skin.

[0009] In one possible implementation, the skin positioning assembly includes a second sleeve and a spiral spring piece. The second sleeve is mounted on the outside of the first sleeve. The second sleeve is rotatable. The first end of the spiral spring piece is set at the lower end of the second sleeve, and the second end of the spiral spring piece is set on the first sleeve. The spiral spring piece is spirally mounted on the outside of the first sleeve. When the second sleeve is rotated, the spiral spring piece expands outward and extends toward the inside of the skin.

[0010] In a possible implementation, a third sleeve is sleeved on the outside of the second sleeve, and a lower end of the third sleeve is located above the second end of the spiral spring piece and is arranged close to the second end of the spiral spring piece.

[0011] In a possible implementation, a positioning ball is provided on the side wall of the first sleeve, and a positioning slot is provided on the side wall of the second sleeve. The positioning slot is sleeved on the outside of the positioning ball, and the positioning slot limits the rotation trajectory of the second sleeve.

[0012] In a possible implementation, a limiting member is provided at the upper end of the second sleeve, and the limiting member is used to limit the rotation of the second sleeve.

[0013] In one possible implementation, the limiting member includes a limiting rod, a side wall of the upper end of the second sleeve is provided with a clearance hole suitable for the limiting rod to pass through, and a limiting surface is provided on the outer side wall of the upper end of the first sleeve. The limiting rod passes through the second sleeve and abuts against the limiting surface to lock the rotation of the second sleeve.

[0014] The beneficial effects of the laparoscope working channel creation device provided by the present invention are:

[0015] Compared with the prior art, an inner push rod and a first sleeve are provided. The first sleeve is sleeved on the middle part of the inner push rod. The pushing tip is provided at the lower end of the inner push rod and is located outside the first sleeve. The pushing tip is convenient for piercing the surgical incision channel. The observation window is provided at the lower end of the first sleeve. A plurality of observation windows are provided along the circumference of the first sleeve. After the device is placed in the human body, the inner push rod is pulled out and the shoulder arthroscopy is extended into the first sleeve. With the help of the observation window, the observation range of the shoulder arthroscopy is expanded and the operation time is shortened. The first end of the connecting water pipe is provided on the side wall of the upper end of the first sleeve, and the connecting water pipe is connected to the internal space of the first sleeve. A control valve is provided on the connecting water pipe, and the second end of the connecting water pipe can be connected to the three-way valve. The other two ends of the three-way valve are respectively connected to the water inlet pipe and the water outlet pipe, which is convenient for injecting normal saline into the joint cavity and facilitating the discharge of normal saline in the joint cavity. The blocking piece is provided at the upper end of the first sleeve and is used to seal the upper end of the first sleeve. The blocking piece is located above the connecting water pipe. After the inner push rod is taken out, the blocking piece automatically closes and blocks the upper end of the first sleeve, which greatly reduces the outflow of normal saline in the joint cavity, helps to maintain the pressure in the joint cavity, reduces the waste of water resources, avoids excessive liquid outflow, and affects the surgical process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a laparoscope working channel creation device provided in an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the exploded structure of the laparoscope working channel creation device provided in an embodiment of the present invention Figure 1 ;

[0019] Figure 3 Schematic diagram of the exploded structure of the laparoscope working channel creation device provided in an embodiment of the present invention Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the blocking member used in an embodiment of the present invention.

[0021] In the figure: 1. Inner push rod; 2. Push-open tip; 3. First sleeve; 4. Observation window; 5. Connecting water pipe; 6. Control valve; 7. Sealing piece; 8. Sealing seat; 9. First sealing piece; 10. First sealing flap; 11. Upper anastomotic ring; 12. Second sealing piece; 13. Lower anastomotic ring; 14. Wire management block; 15. Positioning ball; 16. Limiting surface; 17. Fixing block; 18. Upper limit block; 19. Lower limit block; 20. Second sleeve; 21. Spiral spring piece; 22. Positioning slide; 23. Third sleeve; 24. Limiting rod. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to 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.

[0023] Please refer to Figures 1 to 4 , a specific embodiment of a laparoscope working channel creation device provided by the present invention is now described, including an inner push rod 1 and a first sleeve 3, the inner push rod 1 is inserted into the first sleeve 3, and the lower end of the inner push rod 1 is provided with a push-open tip 2, which is located below the first sleeve 3, and the lower end of the first sleeve 3 is provided with an observation window 4, and multiple groups of observation windows 4 are distributed along the circumference of the first sleeve 3, and a connecting water pipe 5 is provided on the side wall of the upper end of the first sleeve 3, which is connected to the interior of the first sleeve 3, and a control valve 6 is provided on the connecting water pipe 5, and a sealing member 7 is provided at the upper end of the first sleeve 3, which is located above the connecting water pipe 5, and the upper end of the inner push rod 1 passes through the sealing member 7 and is located above the first sleeve 3.

[0024] The present invention provides a laparoscope working channel creation device, which is provided with an inner push rod 1 and a first sleeve 3 compared with the prior art. The first sleeve 3 is sleeved on the middle part of the inner push rod 1, and the push-open tip 2 is provided at the lower end of the inner push rod 1 and is located outside the first sleeve 3. The push-open tip 2 is convenient for piercing the surgical incision channel. The observation window 4 is provided at the lower end of the first sleeve 3. A plurality of groups of observation windows 4 are provided along the circumference of the first sleeve 3. After the device is placed in the human body, the inner push rod 1 is pulled out and the shoulder arthroscopy is extended into the first sleeve 3. With the help of the observation window 4, the observation range of the shoulder arthroscopy is expanded and the operation time is shortened. The first end of the connecting water pipe 5 is provided on the side wall of the upper end of the first sleeve 3, and the water pipe is connected to the side wall. The tube 5 is connected to the internal space of the first sleeve 3. A control valve 6 is provided on the connecting water pipe 5. The second end of the connecting water pipe 5 can be connected to a three-way valve. The other two ends of the three-way valve are respectively connected to the water inlet pipe and the water outlet pipe, which is convenient for injecting physiological saline into the joint cavity and facilitating the discharge of physiological saline in the joint cavity. The blocking member 7 is provided at the upper end of the first sleeve 3 and is used to seal the upper end of the first sleeve 3. The blocking member 7 is located above the connecting water pipe 5. After the inner push rod 1 is removed, the blocking member 7 automatically closes and blocks the upper end of the first sleeve 3, greatly reducing the outflow of physiological saline in the joint cavity, helping to maintain the pressure in the joint cavity, reducing the waste of water resources, and avoiding excessive liquid outflow, affecting the surgical process.

[0025] For details, please refer to Figures 1 to 4 , including an inner push rod 1 and a first sleeve 3, the inner push rod 1 is inserted into the first sleeve 3, the upper and lower ends of the inner push rod 1 are located outside the first sleeve 3, the pushing tip 2 is set at the lower end of the inner push rod 1, and the pushing tip 2 passes through the lower end of the first sleeve 3, the pushing tip 2 is conical, which is convenient for piercing the surgical incision channel and reducing damage to the patient, and an observation window 4 is provided at the lower end of the first sleeve 3. The observation window 4 is arranged along the length direction of the first sleeve 3, and there are three groups of observation windows 4. The three groups of observation windows 4 are evenly distributed along the circumference of the first sleeve 3, and the four corners of the observation window 4 are arc chamfered. A transition chamfer is provided, and a connecting water pipe 5 is provided on the side wall of the upper end of the first sleeve 3. The first end of the connecting water pipe 5 is provided on the side wall of the first sleeve 3, and the second end of the connecting water pipe 5 can be connected to a three-way valve. The other two ends of the three-way valve are respectively connected to the water inlet pipe and the water outlet pipe, which is convenient for injecting physiological saline into the joint cavity and facilitating the discharge of physiological saline in the joint cavity. The control valve 6 is provided at the first end of the connecting water pipe 5, and the control valve 6 can control the discharge and discharge of physiological saline. The blocking member 7 is provided at the upper end of the first sleeve 3, and the blocking member 7 is located above the connecting water pipe 5. The blocking member 7 is used to seal the first sleeve 3 to reduce water leakage during use.

[0026] For further information, please refer to Figures 1 to 4When the device is in use, the inner push rod 1 is inserted into the first sleeve 3, and the device is inserted into the patient's surgical incision channel. Pushing the tip 2 helps to insert the surgical incision channel. When the device is inserted into the specified position, the inner push rod 1 is pulled out, the control valve 6 is opened, and water is injected into the joint cavity. The shoulder arthroscopy is inserted into the first sleeve 3 to observe the joint cavity. The control valve 6 is adjusted according to the actual surgical situation to control the water pressure in the joint cavity.

[0027] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 4 The blocking member 7 includes a blocking seat 8, a first blocking piece 9 and a second blocking piece 12. The blocking seat 8 is arranged at the upper end of the first sleeve 3. The first blocking piece 9 and the second blocking piece 12 are arranged in the blocking seat 8. The first blocking piece 9 is arranged above the second blocking piece 12. The first blocking piece 9 and the second blocking piece 12 are made of a material with elastic deformation.

[0028] For details, please refer to Figures 1 to 4 The sealing member 7 includes a sealing seat 8, a first sealing piece 9 and a second sealing piece 12. The sealing seat 8 is covered at the upper end of the first sleeve 3, and the sealing seat 8 is detachable. The sealing seat 8 includes a sealing cylinder and a sealing ring. The sealing ring is arranged at the upper end of the sealing cylinder, and the first sealing piece 9 and the second sealing piece 12 are stacked from top to bottom. The first blocking piece 9 and the second blocking piece 12 are arranged in the blocking cylinder. The sealing ring limits the first blocking piece 9 and the second blocking piece 12 to prevent the first blocking piece 9 and the second blocking piece 12 from falling off during use. The first blocking piece 9 and the second blocking piece 12 are made of a material with elastic deformation. The first blocking piece 9 and the second blocking piece 12 can be made of silicone, rubber and other materials. They can produce a certain deformation, and the deformation can be restored. The center of the first blocking piece 9 and the center of the second blocking piece 12 are suitable for the penetration of the inner push rod 1. A first incision is provided, and the first incisions are provided in multiple groups, which can be provided in three groups, and are arranged to diverge outward with the center of the first blocking piece 9 as the center of the circle, and a first blocking flap 10 is formed between two adjacent groups of first incisions. A second incision is provided on the second blocking piece 12, and the second incisions are provided in multiple groups, which can be provided in three groups, and are arranged to diverge outward with the center of the second blocking piece 12 as the center of the circle, and a second blocking flap is formed between two adjacent groups of second incisions. When the inner push rod 1 or other surgical instruments are not inserted, the first blocking flap 10 and the second blocking flap are in a closed state, which can reduce water leakage. The inner push rod 1 or other surgical instruments pass through between the first blocking flap 10 and the second blocking flap, and the first blocking flap 10 and the second blocking flap are in an open state, and the first blocking flap 10 and the second blocking flap will fit the outer wall of the inner push rod 1 or other surgical instruments, reducing water leakage during the use of the inner push rod 1 or other surgical instruments.

[0029] For further information, please refer to Figures 1 to 4 The outer wall of the blocking seat 8 is provided with a wire management block 14, and there are multiple groups of wire management blocks 14. The multiple groups of wire management blocks 14 are evenly arranged along the circumference of the blocking seat 8. The lower end of the wire management block 14 is provided with a wire management groove. The wire management groove is suitable for the winding of surgical wires, which helps to comb the surgical wires and improve the efficiency of the operation.

[0030] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 4 The height of the center of the first blocking piece 9 is lower than the height of its edge, and the height of the center of the second blocking piece 12 is lower than the height of its edge.

[0031] For details, please refer to Figures 1 to 4 As it approaches the center of the first blocking piece 9, the height of the first blocking petal 10 gradually decreases. As it approaches the center of the second blocking piece 12, the height of the second blocking petal gradually decreases, which helps to improve the water blocking effect.

[0032] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 4 The lower end surface of the edge of the first blocking piece 9 is provided with an upper anastomotic ring 11 , and the upper end surface of the edge of the second blocking piece 12 is provided with a lower anastomotic ring 13 , and the upper anastomotic ring 11 is consistent with the lower anastomotic ring 13 .

[0033] For details, please refer to Figures 1 to 4 The upper anastomotic ring 11 is arranged on the lower end face of the edge of the first blocking piece 9, and the lower anastomotic ring 13 is arranged on the upper end face of the edge of the second blocking piece 12. The upper anastomotic ring 11 and the lower anastomotic ring 13 are arranged opposite to each other, and the lower end face of the upper anastomotic ring 11 is provided with an upper anastomotic groove, and the upper end face of the lower anastomotic ring 13 is provided with a lower anastomotic groove. When the upper anastomotic ring 11 and the lower anastomotic ring 13 are stacked, the upper anastomotic groove and the lower anastomotic groove are staggered with each other, and the lower end face of the upper anastomotic ring 11 matches the upper end face of the lower anastomotic ring 13. The two are assembled together to increase the stability of the installation of the first blocking piece 9 and the second blocking piece 12.

[0034] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 3 The outer side of the first sleeve 3 is provided with a skin positioning component, the lower end of the skin positioning component is located above the observation window 4, the upper end of the skin positioning component is located below the connecting water pipe 5, and the lower end of the skin positioning component is telescopically arranged on the inner side of the skin.

[0035] For details, please refer to Figures 1 to 3The skin positioning component is sleeved on the outside of the first sleeve 3, and the skin positioning component is used to limit the device on the patient's skin. The lower end of the skin positioning component is located above the observation window 4 to avoid affecting the field of view of the shoulder arthroscopy. The upper end of the skin positioning component is located below the connecting water pipe 5 to avoid the connecting water pipe 5 affecting the use of the skin positioning component. When the device enters the human body, the observation window 4 is located in the joint cavity, and the lower end of the skin positioning component is located in the joint cavity and is arranged close to the inner surface of the skin. The lower end of the skin positioning component is provided with a retractable structure. In the initial state, the retractable structure at the lower end of the skin positioning component is in a contracted state, which is convenient for the device to be placed in the patient's body. After the device is placed in the specified position, the retractable structure at the lower end of the skin positioning component is adjusted to an extended state, and the retractable structure extends toward the skin around the device. The retractable structure extends to below the inner surface of the skin to limit the device to the skin.

[0036] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 3 The skin positioning component includes a second sleeve 20 and a spiral spring piece 21. The second sleeve 20 is sleeved on the outside of the first sleeve 3. The second sleeve 20 can be rotatably set. The first end of the spiral spring piece 21 is set at the lower end of the second sleeve 20, and the second end of the spiral spring piece 21 is set on the first sleeve 3. The spiral spring piece 21 is spirally sleeved on the outside of the first sleeve 3. When the second sleeve 20 is rotated, the spiral spring piece 21 expands outward and extends to the inner side of the skin.

[0037] For details, please refer to Figures 1 to 3The skin positioning component includes a second sleeve 20 and a spiral spring piece 21. The second sleeve 20 is sleeved on the outside of the first sleeve 3, and the second sleeve 20 is located in the middle of the first sleeve 3. The second sleeve 20 is rotatable relative to the first sleeve 3. The spiral spring piece 21 is spiral-shaped and sleeved on the outside of the first sleeve 3. The first end of the spiral spring piece 21 is arranged on the end surface of the lower end of the second sleeve 20. The lower end of the first sleeve 3 is provided with a fixing block 17. The side wall of the fixing block 17 is provided with a fixing groove. The second end of the spiral spring piece 21 penetrates the fixing groove, and the fixing groove fixes the second end of the spiral spring piece 21. The spiral spring piece 21 is provided with multiple groups, which can be set to three groups. The first ends of the three groups of spiral spring pieces 21 are evenly distributed on the end surface of the lower end of the second sleeve 20. The spiral spring pieces 21 have the same rotation direction and can extend downward clockwise or counterclockwise. The three groups of spiral spring pieces 21 are staggered in the downward extension process. An upper limit block 18 and a lower limit block 19 are provided on the tube 3. The upper end of the upper limit block 18 is arranged below the first end of the spiral spring piece 21, and the lower limit block 19 is arranged directly below the upper limit block 18. A clearance groove suitable for the spiral spring piece 21 on the side to pass through is formed between the upper limit block 18 and the lower limit block 19. The upper limit block 18 and the spiral spring piece 21 are arranged one-to-one correspondingly, and the lower limit block 19 and the upper limit block 18 are arranged one-to-one correspondingly. The upper limit block 18 and the lower limit block 19 cooperate to limit the rotation trajectory of the spiral spring piece 21, and the spiral spring piece 21 extends clockwise downward for explanation. In the initial state, the spiral spring piece 21 is wound around the outside of the first sleeve 3. After the device is placed in the specified position, the second sleeve 20 is rotated clockwise, and the spiral of the spiral spring piece 21 gradually weakens. The spiral spring piece 21 expands toward the skin outside the device, and the spiral spring piece 21 enters below the inner surface of the skin and presses against the inner surface of the skin to achieve locking of the device.

[0038] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 3 A third sleeve 23 is sleeved on the outside of the second sleeve 20 , and the lower end of the third sleeve 23 is located above the second end of the spiral spring piece 21 and is arranged close to the second end of the spiral spring piece 21 .

[0039] For details, please refer to Figures 1 to 3 The third sleeve 23 is sleeved on the outside of the second sleeve 20, the upper end of the third sleeve 23 is located below the upper end of the second sleeve 20, and the lower end of the third sleeve 23 is located above the fixed block 17. In the initial state, the upper and middle parts of the spiral spring piece 21 are both located in the third sleeve 23, and the second end of the spiral spring piece 21 is located outside the third sleeve 23. When the third sleeve 23 is rotated, the second sleeve 20 and the third sleeve 23 rotate synchronously, and the spiral spring piece 21 expands outward under the third sleeve 23. The third sleeve 23 limits the expansion of the spiral spring piece 21, so that the device is convenient for being stuck on the inner surface of the skin.

[0040] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 3 The side wall of the first sleeve 3 is provided with a positioning ball 15, and the side wall of the second sleeve 20 is provided with a positioning slot 22. The positioning slot 22 is sleeved on the outside of the positioning ball 15, and the positioning slot 22 limits the rotation trajectory of the second sleeve 20.

[0041] For details, please refer to Figures 1 to 3 The positioning ball 15 is arranged on the side wall of the first sleeve 3, and the positioning groove 22 is arranged on the side wall of the second sleeve 20. The positioning ball 15 is located in the positioning groove 22. As the second sleeve 20 rotates, under the action of the positioning ball 15, the second sleeve 20 slides along the prescribed trajectory, and the spiral spring piece 21 extends clockwise downward for explanation. In the initial state, the positioning ball 15 is located at the first end of the positioning groove 22, and the second end of the positioning groove 22 is located obliquely above the first end of the positioning groove 22, which is convenient for turning out the spiral spring piece 21 later.

[0042] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 3 A limiting member is provided at the upper end of the second sleeve 20 , and the limiting member is used to limit the rotation of the second sleeve 20 .

[0043] For details, please refer to Figures 1 to 3 The limiting member is provided at the upper end of the second sleeve 20 , and when the second sleeve 20 rotates to a prescribed state, the limiting member is used to limit the rotation of the second sleeve 20 .

[0044] As a specific embodiment of the laparoscope working channel creation device provided by the present invention, please refer to Figures 1 to 3 The limiting member includes a limiting rod 24. A clearance hole suitable for the limiting rod 24 to pass through is provided on the side wall of the upper end of the second sleeve 20. A limiting surface 16 is provided on the outer side wall of the upper end of the first sleeve 3. The limiting rod 24 penetrates into the second sleeve 20 and abuts against the limiting surface 16 to lock the rotation of the second sleeve 20.

[0045] For details, please refer to Figures 1 to 3 The limiting member is a limiting rod 24, and a clearance hole is provided on the side wall of the upper end of the second sleeve 20. The limiting rod 24 passes through the clearance hole and penetrates into the interior of the second sleeve 20. A limiting surface 16 is provided on the outer side wall of the upper end of the first sleeve 3. The limiting surface 16 is arranged along the length direction of the first sleeve 3. There are multiple groups of limiting surfaces 16, and the multiple groups of limiting surfaces 16 are evenly distributed along the circumference of the first sleeve 3. After the limiting rod 24 penetrates into the second sleeve 20, it just fits into the outer side of the limiting surface 16. The limiting surface 16 cooperates with the limiting rod 24 to lock the rotation of the second sleeve 20.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laparoscope working channel creation device, characterized in that: The first sleeve includes an inner push rod and a first sleeve, wherein the inner push rod is inserted into the first sleeve, and the lower end of the inner push rod is provided with a push-open tip, and the push-open tip is located below the first sleeve, and the lower end of the first sleeve is provided with an observation window, and multiple groups of observation windows are distributed along the circumference of the first sleeve, and a connecting water pipe is provided on the side wall of the upper end of the first sleeve, and the connecting water pipe is connected to the interior of the first sleeve, and a control valve is provided on the connecting water pipe, and a sealing piece is provided at the upper end of the first sleeve, and the sealing piece is located above the connecting water pipe, and the upper end of the inner push rod passes through the sealing piece and is located above the first sleeve; a skin positioning component is provided on the outer side of the first sleeve, and the lower end of the skin positioning component is located at the Above the observation window, the upper end of the skin positioning assembly is located below the connecting water pipe. The skin positioning assembly includes a second sleeve and a spiral spring piece. The second sleeve is sleeved on the outside of the first sleeve. The second sleeve is rotatable. The first end of the spiral spring piece is arranged on the lower end of the second sleeve, and the second end of the spiral spring piece is arranged on the first sleeve. The spiral spring piece is spirally sleeved on the outside of the first sleeve. When the second sleeve is rotated, the spiral spring piece expands outward and extends toward the inner side of the skin; the side wall of the first sleeve is provided with a positioning ball, and the side wall of the second sleeve is provided with a positioning groove. The positioning groove is sleeved on the outside of the positioning ball, and the positioning groove limits the rotation trajectory of the second sleeve.

2. The laparoscope working channel creation device according to claim 1, characterized in that: The sealing member includes a sealing seat, a first sealing piece and a second sealing piece. The sealing seat is arranged at the upper end of the first sleeve. The first sealing piece and the second sealing piece are arranged in the sealing seat. The first sealing piece is arranged above the second sealing piece. The first sealing piece and the second sealing piece are made of a material with elastic deformation.

3. The laparoscope working channel creation device according to claim 2, characterized in that: The height of the center of the first blocking piece is lower than the height of the edge thereof, and the height of the center of the second blocking piece is lower than the height of the edge thereof.

4. The laparoscope working channel creation device according to claim 2, characterized in that: An upper anastomotic ring is provided on the lower end surface of the edge of the first blocking piece, and a lower anastomotic ring is provided on the upper end surface of the edge of the second blocking piece, and the upper anastomotic ring is aligned with the lower anastomotic ring.

5. The laparoscope working channel creation device according to claim 1, characterized in that: A third sleeve is sleeved on the outside of the second sleeve. The lower end of the third sleeve is located above the second end of the spiral spring piece and is arranged close to the second end of the spiral spring piece.

6. The laparoscope working channel creation device according to claim 1, characterized in that: A limiting member is provided at the upper end of the second sleeve, and the limiting member is used to limit the rotation of the second sleeve.

7. The laparoscope working channel creation device according to claim 6, characterized in that: The limiting member includes a limiting rod, and a clearance hole suitable for the limiting rod to pass through is provided on the side wall of the upper end of the second sleeve. A limiting surface is provided on the outer side wall of the upper end of the first sleeve. The limiting rod penetrates into the second sleeve and abuts against the limiting surface to lock the rotation of the second sleeve.

Images