Endoscopic cervical banding system

Abstract

The endoscopic cervical strapping system of the present invention includes a strapping device and a delivery device. The strapping device includes a strapping mechanism, a fixing mechanism and a strapping hole. The unidirectional motion design can ensure that the strapping mechanism can only move in one direction during clinical use, and will not move in the opposite direction to cause the tissue to accidentally loosen during the strapping process. The delivery device includes a delivery sheath, and the strapping device can be folded into the delivery sheath. After reaching the surgical site through the surgical channel such as the puncture sheath, the strapping device can be released from the delivery sheath through the pushing mechanism, and the tissue to be strapped is placed in the strapping hole. The strapping mechanism is continuously pulled toward the distal end, and the strapping hole will continue to shrink, and the tissue will eventually be tied and sealed, which can effectively prevent the overflow of tissue fluid during tissue removal, avoid the seeding of tumor cells, and make the surgical process safer. The design of the delivery sheath is particularly suitable for use under endoscopic surgery.

Description

Technical Field

[0001] The invention relates to a laparoscopic surgical instrument, in particular to an endoscopic cervical ligation system used in laparoscopic surgery. Background Art

[0002] With the development of laparoscopic technology, more and more surgeries are performed under laparoscopy, including a large number of malignant tumor surgeries, including total hysterectomy for cervical cancer.

[0003] When performing cervical cancer surgery using laparoscopy, due to the flow of carbon dioxide gas that creates pneumoperitoneum pressure, if cervical cancer tissue or cancer cells leak, it is easy to cause cancer cells to be seeded in the abdominal cavity. The existing technology has no effective solution to this problem, so open surgery is clinically recommended to avoid the seeding of cancer cells in the abdominal cavity with the flow of carbon dioxide gas.

[0004] Therefore, it is necessary to develop a tying device that can be easily delivered into the body during laparoscopic surgery, and after the uterus is separated from the surrounding tissues and ligaments, it can be tied at the safe vaginal part of the cervix, completely closing the vagina in front of the cervix, thereby completely preventing the spread of cancer cells, and then cutting off the vagina to safely remove the removed diseased uterus from the body. The purpose of the present invention is to design a tying device that can be used for the cervical opening during laparoscopic surgery during total hysterectomy. Summary of the invention

[0005] The endoscopic cervical banding system of the present invention can be used with a banding belt that can be folded into a delivery device and delivered into the body through a surgical channel. After the banding belt is released, it can effectively bandage the vagina in a safe area in front of the cervix and completely block the channel for cervical cancer tissue or fluid to flow out, thereby preventing cancer cells from being seeded in the abdominal cavity along with the flow of carbon dioxide gas. The system is very suitable for total hysterectomy under endoscopic minimally invasive surgery.

[0006] The endoscopic cervical os strapping system of the present invention is characterized in that: the endoscopic cervical os strapping system 900 comprises a strapping device 100 and a delivery device 200, and the strapping device 100 can be folded in the delivery device 200;

[0007] A. The strapping device 100 comprises a strapping mechanism 11, a fixing mechanism 12 and a strapping hole 13;

[0008] B. The bundling mechanism 11 is provided with at least one positioning groove 11-1; the fixing mechanism 12 comprises a through hole 12-1 and at least one positioning convex step 12-2; the proximal end 101 of the bundling mechanism 11 is connected to the fixing mechanism 12, and the distal end 102 of the bundling mechanism 11 passes through the through hole 12-1 to form a bundling hole 13; the positioning convex step 12-2 is embedded in the positioning groove 11-1 to prevent the distal end 102 of the bundling mechanism 11 from loosening or slipping off from the fixing mechanism 12;

[0009] C. The delivery device 200 comprises a delivery sheath 21 , and the bundling device 100 can be folded inside the delivery sheath 21 .

[0010] When in use, the strapping device 100 can be folded into the delivery sheath 21, and can be easily brought to the surgical area through the surgical channel, and then the strapping device 100 can be released by pushing the delivery sheath 21 out. Then, the tissue to be strapped is placed into the strapping hole 13, and the strapping mechanism 11 is continuously pulled distally, and the strapping hole 13 is continuously folded, and the tissue is finally strapped tightly until it is completely closed, which can effectively prevent the overflow of tissue fluid and prevent the seeding of cancer cells.

[0011] Furthermore, the bundling mechanism 11 is a bundling belt 1-1. The bundling mechanism 11 is preferably a bundling belt 1-1 with a certain surface area, which can better ensure the firmness of the bundling process without easily cutting or breaking the tissue to be bundled. Of course, those skilled in the art can also design the bundling mechanism 11 into a bundling mechanism with various other structures such as a chain structure, a bead chain structure, etc., which does not deviate from the protection scope of this application.

[0012] The binding belt 1-1 is made of a soft elastic medical material. The binding belt 1-1 made of a soft elastic material can better fit the tissue while ensuring the binding firmness, and further ensure the reliability of cavity sealing.

[0013] The positioning groove 11-1 is a continuously adjustable positioning groove 11-11. The positioning groove 11 is a continuous positioning groove 11-1, so that in the process of closing the bundling hole 13, it can be fixed at any position according to the size of the tissue and the degree of bundling tension required.

[0014] The positioning groove 11-1 is a unidirectional motion groove 11-12. The unidirectional motion design can ensure that the binding mechanism 11 can only move in one direction during clinical use, and will not move in the reverse direction to cause accidental loosening of the tissue binding process.

[0015] The delivery device 200 further comprises a pushing mechanism 22, which can push out the tying device 100 retracted in the delivery sheath 21. The pushing mechanism 22 can be a linkage pushing mechanism 201 connected to the fixing mechanism 12, or a separate pushing mechanism 202 designed separately and capable of pushing out the tying device 100 through the delivery sheath 21.

[0016] The pushing mechanism 22 includes a through hole 22-1; the distal end 102 of the strapping mechanism 11 of the strapping device 100 passes through the through hole 22-1 and is exposed outside the delivery device 200. The distal end 102 of the strapping mechanism 11 is exposed outside the delivery device 200. During clinical use, the doctor can directly close the strapping hole 13 of the strapping device 100 outside the body, which makes the operation more convenient.

[0017] The far end 102 of the bundling mechanism 11 is provided with a pull ring 11 - 2 , through which the bundling mechanism 11 can be conveniently pulled to close the bundling hole 13 .

[0018] The strapping mechanism 11 is provided with an anti-slip mechanism 11-3. After the strapping of the tissue is completed, various surgical operations need to be performed near the strapped tissue during clinical use. During the entire clinical surgical process, the strapping mechanism 11 cannot loosen or fall off from the tissue. Therefore, the endoscope cervical strapping system of the present invention is provided with an anti-slip mechanism 11-3 on the strapping mechanism 11, and its core purpose is to prevent the strapping mechanism 11 from loosening or slipping off from the strapped tissue during the surgical process.

[0019] The anti-skid mechanism 11-3 is an anti-skid pattern 11-31 or an anti-skid convex step 11-32 provided on the binding mechanism 11. The applicant only lists the above two specific anti-skid structures. In actual applications, technicians in this field can design different anti-skid structures as needed, but they do not deviate from the protection scope of this application.

[0020] The anti-slip grooves 11-31 are distributed along the longitudinal direction of the strapping belt 1-1. Since the continuous positioning grooves 11-1 on the strapping belt 1-1 have the function of preventing lateral slippage, the important function of the anti-slip mechanism 11-3 is to prevent the strapping mechanism 11 from slipping along the axial direction of the tissue, and therefore, the anti-slip grooves 11-31 are usually distributed along the longitudinal direction of the strapping belt 1-1.

[0021] The bundling mechanism 11 is provided with an opening device 11-4. During the delivery process, the bundling device 100 is retracted in the delivery sheath 21. Due to the restraining effect of the delivery sheath 21 on the bundling device 100, when the bundling device 100 is released from the delivery sheath 21, the bundling mechanism 11 will be squeezed and deformed, making it difficult for the bundling hole 13 to recover. Therefore, the opening device 11-4 is designed to open the bundling mechanism 11 and restore the shape of the bundling hole 13 after the bundling device 100 is released from the delivery sheath 21.

[0022] The opening device 11-3 is an elastic opening device 11-41. The elastic opening device 11-41 can automatically apply an elastic opening force to the strapping mechanism 11. During clinical use, when the strapping device 100 is released from the delivery sheath 21, the elastic opening device 11-41 automatically applies an elastic opening force to the strapping mechanism 11, so that the strapping mechanism 11 automatically opens and restores the shape of the strapping hole 13, making the clinical use process more convenient.

[0023] The distal end of the pushing mechanism 22 is provided with a limiting device 22-2; the fixing mechanism 12 is connected to the limiting device 22-2 via a binding wire 121. The fixing mechanism 12 is connected to the pushing mechanism 22, so that the pushing mechanism 22 can drive the binding device 100 to move back and forth in the delivery sheath 21. At the same time, the distal end of the pushing mechanism 22 is provided with a limiting device 22-2, and the fixing mechanism 12 is connected to the limiting device 22-2 via the binding wire 121. Since there is no relative movement between the binding device 100 and the pushing mechanism 22, it can prevent the binding device 11 from accidentally causing the binding device 100 to be retracted into the delivery sheath when the binding device 100 is retracted.

[0024] A push-pull handle 22 - 3 is provided at the proximal end of the pushing mechanism 22 . The push-pull handle 22 - 3 provided at the proximal end of the pushing mechanism 22 can facilitate pushing and pulling the pushing mechanism 22 to reciprocate in the delivery sheath 21 .

[0025] The proximal end of the delivery sheath 21 is provided with a gripping portion 21 - 1 . During clinical use, medical staff can conveniently grip the gripping portion 21 - 1 , which is not easy to slip off during pushing and pulling, making it more convenient and safe to use.

[0026] The pushing mechanism 22 also includes a locking mechanism 22-5; when the locking mechanism 22-5 is in a locked state, the bundling device 100 is fixed in the delivery sheath 21 and will not fall out of the delivery sheath 21. Because the locking mechanism 22-5 can fix the bundling device 100 in the delivery sheath 21, the bundling device 100 will not accidentally fall out of the delivery sheath 21 during transportation and clinical delivery, thereby ensuring that the bundling device 100 is not contaminated and ensuring the safety of transportation and use.

[0027] The locking method of the locking mechanism 22-5 is a concave-convex locking method, a rotation locking method, or an interference locking method. The applicant only lists the above three specific locking methods. In actual applications, technicians in this field can design different locking methods as needed without departing from the protection scope of this application.

[0028] The pushing mechanism 22 also includes a folding mechanism 22-6; the folding mechanism 22-6 can tighten the tying device 100 after the tying device 100 ties the tissue, and take the remaining part of the tying mechanism 11 out of the body through the pushing mechanism 22. The folding mechanism 22-6 is usually arranged at the distal end of the delivery sheath 21 or the pushing rod 22-4, and the folding mechanism 22-6 can be fixedly connected with the tying mechanism 11. With the recovery movement of the folding mechanism 22-6, the tying mechanism 11 moves accordingly, thereby tightening the tying hole 13 and tying the tissue. After the tying hole 13 is tightened, the tying mechanism 11 is cut off, and the cut tying mechanism 11 can be taken out of the body with the pushing mechanism 22, which is very convenient for clinical use.

[0029] The endoscopic cervical ligation system 900 is made of medical materials. Since the endoscopic cervical ligation system of the present invention needs to enter the human body for use, the parts in contact with the human body need to be made of medical materials to ensure the biocompatibility requirements during clinical use.

[0030] In clinical use, the surrounding tissues and ligaments of the uterus 500 and the paravaginal tissues are separated and cut, and then the upper vagina is ligated with the tying device 100 to prevent the cervical and affected vaginal wall cancer cells 5-1 from entering the abdominal cavity, and then the vagina is cut to remove the specimen.

[0031] Taking the endoscopic cervical os bundling system of the present invention with the pushing mechanism 22 as an example, during the specific operation, the tissues and ligaments around the uterus are first separated and cut off, and then the uterus is freed, and the bundling device 100 is gathered in the delivery sheath 21. The delivery sheath 21 reaches the surgical site through surgical channels such as the puncture sheath, and the pushing mechanism 22 is pushed to release the bundling device 100 from the delivery sheath 21. Then, the bundling device 100 is put on the vagina outside the cervical os through the bundling hole 13, and the pull ring 11-2 is pulled backward to pull the bundling mechanism 11 to move and close the bundling hole 13 until the vaginal tissue outside the cervical os is tied together and completely closed. Then, the vagina 600 is cut with an ultrasonic knife, and the uterus 500 with the cervical os already tied and closed is taken out of the body through the vagina; or the uterus 500 with the cervical os already tied and closed is placed in the endoscopic extraction belt and taken out of the body through the vagina 600.

[0032] The endoscopic cervical os bundling system of the present invention comprises a bundling device 100 and a delivery device 200. The bundling device 100 comprises a bundling mechanism 11, a fixing mechanism 12 and a bundling hole 13. The unidirectional motion design can ensure that the bundling mechanism 11 can only move in one direction during clinical use, and will not move in the opposite direction to cause accidental loosening of the tissue bundling process. The delivery device comprises a delivery sheath 21, and the bundling device 100 can be folded in the delivery sheath 21. After reaching the surgical site through the surgical channel such as the puncture sheath, the bundling device 100 can be released from the delivery sheath 21 through the pushing mechanism 22, and the tissue to be bundled is placed in the bundling hole 13. The bundling mechanism 11 is continuously pulled toward the distal end, and the bundling hole 13 will continue to shrink, and finally the tissue will be tied and closed, which can effectively prevent the overflow of tissue fluid during tissue removal, avoid the seeding of tumor cells, and make the surgical process safer. The design of the delivery sheath is particularly suitable for use under endoscopic surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front view of the strapping device of the endoscopic cervical strapping system of the present invention compressed in the delivery device.

[0034] Figure 1-1 yes Figure 1 AA section view.

[0035] Figure 1-2 yes Figure 1 Front view of the strapping device after being released from the delivery device.

[0036] Figure 1-3 yes Figure 1-2 BB cross-sectional view.

[0037] Figure 1-4It is a schematic diagram of the three-dimensional structure of a strapping device including anti-slip convex steps.

[0038] Figure 1-5 It is a schematic diagram of the three-dimensional structure of a strapping device with anti-slip grooves.

[0039] Figure 1-6 It is a working principle diagram of the endoscopic cervical ligation system of the present invention.

[0040] Figure 2 It is a front view of the strapping device of the endoscopic cervical strapping system of the present invention including an independent pushing mechanism compressed in a delivery device.

[0041] Figure 2-1 yes Figure 2 CC cross-sectional view.

[0042] Figure 2-2 yes Figure 2 Front view of the strapping device after being released from the delivery device.

[0043] Figure 2-3 yes Figure 2-2 DD cross-sectional view.

[0044] Figure 2-4 yes Figure 2-3 Enlarged view of point E.

[0045] Figure 3 It is a three-dimensional structural schematic diagram of the endoscope cervical os strapping system of the present invention including a linkage pushing mechanism.

[0046] Figure 3-1 yes Figure 3 main view.

[0047] Figure 3-2 yes Figure 3-1 FF cross-sectional view.

[0048] Figure 3-3 yes Figure 3-2 Enlarged view of point G.

[0049] Figure 3-4 yes Figure 3 Left view of .

[0050] Figure 3-5 yes Figure 3-4 HH cross-sectional view.

[0051] Figure 3-6 yes Figure 3-5 Enlarged view of point I.

[0052] Figure 3-7 yes Figure 3 Schematic diagram of the three-dimensional structure of the bundling device compressed in the delivery device.

[0053] Figure 3-8 yes Figure 3-7 main view.

[0054] Figure 3-9 yes Figure 3-8 JJ cross-sectional view.

[0055] Figure 3-1 0 is a schematic diagram of inserting the endoscopic cervical ligation system of the present invention from the puncture device into the human body.

[0056] Figure 3-1 1 is a schematic diagram of the strapping device being released in the human body.

[0057] Figure 3-1 2 is a schematic diagram of the working principle when the cervix is ​​tied tightly.

[0058] Figure 3-1 3 is a schematic diagram of the working principle when the delivery device is removed.

[0059] Figure 4 It is a three-dimensional structural schematic diagram of the endoscopic cervical os strapping system of the present invention including an opening device.

[0060] Figure 4-1 yes Figure 4 main view.

[0061] Figure 4-2 yes Figure 4-1 KK cross-sectional view.

[0062] Figure 5 It is a three-dimensional structural schematic diagram of the endoscope cervical os strapping system of the present invention in a locked state.

[0063] Figure 5-1 yes Figure 5 sectional view of .

[0064] Figure 5-2 yes Figure 5-1 Enlarged view of L.

[0065] Figure 5-3 yes Figure 5-1 Enlarged view of point M.

[0066] Figure 6 It is a schematic diagram of the three-dimensional structure of the endoscope cervical os strapping system of the present invention in an unlocked state.

[0067] Figure 6-1 yes Figure 6 sectional view of .

[0068] Figure 6-2 yes Figure 6-1 Enlarged view of location N.

[0069] Figure 6-3 yes Figure 6-1 Enlarged view of point O.

[0070] Figure 7 It is a three-dimensional structural schematic diagram of the endoscope cervical os strapping system of the present invention when the pushing rod is withdrawn.

[0071] Figure 7-1 yes Figure 7 PP cross-sectional view.

[0072] Figure 7-2 yes Figure 7-1 Enlarged view of Q.

[0073] Figure 8 It is a three-dimensional structural schematic diagram of the endoscope cervical os bundling system of the present invention when the bundling device is collapsed by the collapse device after tissue bundling.

[0074] Figure 8-1 yes Figure 8 RR cross-sectional view.

[0075] Figure 8-2 yes Figure 8-1 Enlarged view of S

[0076] In the above figure:

[0077] 100 is a tying device, 200 is a delivery device, 400 is a surgical forceps, 500 is a uterus, 900 is an endoscopic cervical tying system of the present invention; 5-1 is a cancer cell.

[0078] On the strapping device:

[0079] 1-1 is a strapping tape.

[0080] 101 is the proximal end of the strapping mechanism, and 102 is the distal end of the strapping mechanism.

[0081] 11 is a bundling mechanism, 12 is a fixing mechanism, and 13 is a bundling hole.

[0082] 11-1 is a positioning groove, 11-2 is a pull ring, 11-3 is an anti-slip mechanism, 11-4 is an opening device, 11-5 is a clamping mechanism, 11-6 is a limit groove; 12-1 is a through hole, 12-2 is a positioning convex step, and 12-3 is a clamping part.

[0083] 11-11 is a continuous positioning groove, 11-12 is a unidirectional movement groove, 11-31 is an anti-skid pattern, 11-32 is an anti-skid convex step, 11-41 is an elastic opening device, 11-51 is an anti-skid clamping surface; 12-31 is a clamping groove.

[0084] 12-31-1 is a clampable polygon, 12-31-2 is a stopper, and 11-41-1 is a spring.

[0085] On the delivery device:

[0086] 201 is a linkage push mechanism, and 202 is an independent push mechanism.

[0087] 21 is a delivery sheath, and 22 is a pushing mechanism.

[0088] 21-1 is a gripping portion, 21-2 is a sealing device, 21-3 is a locking groove; 22-1 is a movement through hole, 22-2 is a limiting mechanism, 22-3 is a push-pull handle, 22-4 is a pushing rod, 22-5 is a locking mechanism, and 22-6 is a folding mechanism.

[0089] 22-21 is the center hole; 22-41 is the locking block, 22-42 is the positioning spring, 22-43 is the storage space; 22-51 is the locking end, and 22-52 is the positioning end.

[0090] 22-42-1 is a limit convex step.

[0091] 121 is a binding wire. DETAILED DESCRIPTION

[0092] Example 1: Endoscopic cervical ligation system of the present invention

[0093] refer to Figure 1 to Figure 1-6 The endoscopic cervical ligation system of this embodiment includes a ligation device 100 and a delivery device 200.

[0094] refer to Figure 1-4 and Figure 1-5 The bundling device 100 includes a bundling mechanism 11 , a fixing mechanism 12 and a bundling hole 13 .

[0095] The bundling mechanism 11 is provided with at least one positioning groove 11-1, and the fixing mechanism 12 includes a through hole 12-1 and at least one positioning convex step 12-2; the proximal end 101 of the bundling mechanism 11 is connected to the fixing mechanism 12, and the distal end 102 of the bundling mechanism 11 can pass through the through hole 12-1; the positioning convex step 12-2 can prevent the distal end 102 of the bundling mechanism 11 from loosening or slipping from the fixing mechanism 12 when embedded in the positioning groove 11.

[0096] In this embodiment, the strapping mechanism 11 is a strapping belt 1-1. The strapping mechanism 11 is preferably a strapping belt 1-1 with a certain surface area, which can better ensure the firmness of the strapping process without easily cutting or breaking the tissue to be strapped. Of course, those skilled in the art can also design the strapping mechanism 11 into a strapping device with various other structures such as a chain structure, a bead chain structure, etc. The applicant does not list them one by one here, but they do not deviate from the protection scope of this application.

[0097] The binding belt 1-1 is made of a soft elastic medical material, which can better fit the tissue while ensuring the binding firmness, further ensuring the reliability of cavity sealing.

[0098] In this embodiment, the positioning groove 11-1 of the strapping mechanism 11 is a continuously adjustable positioning groove 11-11. During the process of folding the strapping device, it can be fixed at any position according to the size of the tissue and the degree of strapping tension required.

[0099] Furthermore, the positioning groove 11 is a unidirectional movement groove 11-12 that can only move in one direction, ensuring that during clinical use, the bundling mechanism 11 can only move in one direction and will not move in the opposite direction to cause accidental loosening of the tissue during the bundling process.

[0100] In this embodiment, the distal end 102 of the bundling mechanism 11 is provided with a clamping mechanism 11-5 for convenient clamping of surgical instruments. In order to facilitate tightening the bundling mechanism 11 with surgical instruments under laparoscopy, a clamping mechanism 11-5 for convenient clamping of surgical instruments is provided at the distal end 102 of the bundling mechanism 11. The clamping mechanism 11-5 can ensure that when the surgical instrument clamps the distal end of the bundling mechanism 11 and pulls it outward to tighten it, it is not easy to loosen, thereby improving the accuracy of the surgical tightening operation.

[0101] refer to Figure 1-5 In this embodiment, the clamping mechanism 11-5 is an anti-slip clamping surface 11-51. In practical applications, technicians in this field can design different specific structures of the clamping mechanism as needed, which does not deviate from the protection scope of this application.

[0102] In this embodiment, the bundling mechanism 11 is provided with an anti-slip mechanism 11-3. After the tissue is bundled, various surgical operations need to be performed near the bundled tissue during clinical use. During the entire clinical surgical process, the bundling device 100 cannot fall off the tissue. Therefore, the tissue bundling device of this embodiment is provided with an anti-slip mechanism 11-3 on the bundling mechanism 11, and its core purpose is to prevent the bundling device 100 from slipping off the bundled tissue during the surgical process.

[0103] refer to Figure 1-4 and Figure 1-5 The anti-skid mechanism 11-3 may be an anti-skid pattern 11-31 or an anti-skid convex step 11-32 provided on the binding mechanism 11. The applicant only lists the above two specific anti-skid structures. In practical applications, technicians in this field can design different anti-skid structures as needed, but they do not deviate from the protection scope of this application.

[0104] In this embodiment, the anti-slip grooves 11-31 are distributed along the longitudinal direction of the strapping belt 1-1. Since the continuous positioning grooves 11-1 on the strapping belt 11 have the function of preventing lateral slippage, the important function of the anti-slip mechanism 11-3 is to prevent the strapping device 100 from slipping along the axial direction of the tissue, and therefore, the anti-slip grooves 11-31 are usually distributed along the longitudinal direction of the strapping belt 1-1.

[0105] refer to Figure 1-4 In this embodiment, the fixing mechanism 12 is provided with a clamping portion 12-3 for conveniently clamping surgical instruments. During clinical use, the fixing mechanism 12 needs to be clamped with surgical forceps 400 to pull and close the binding mechanism 11. Therefore, the fixing mechanism 12 needs to be provided with a clamping portion 12-3 for conveniently clamping surgical instruments.

[0106] refer to Figure 1-4 and Figure 1-5 In this embodiment, the clamping portion 12-3 is a clamping groove 12-31

[0107] The middle of the clamping groove 12-31 is a clampable polygon 12-31-1, and anti-slip blocks 12-31-2 are provided at both ends.

[0108] The clampable polygon 12-31-1 is a hexahedron. This H-shaped hexahedron groove structure with raised sides and a concave middle is an optimized structure in the specific clamping groove 12-31 for laparoscopic surgical forceps clamping. In specific product design, technicians in this field can design different polygonal structures as needed, which does not deviate from the protection scope of this application.

[0109] In practical applications, technicians in this field can design different clamping structures as needed. The applicant will not list and illustrate them one by one here, but they do not deviate from the protection scope of this application.

[0110] refer to Figure 1 and Figure 1-1 The delivery device 200 includes a delivery sheath 21 , and the bundling device 100 can be retracted inside the delivery sheath 21 .

[0111] The binding device 100 is made of medical materials. Since the tissue binding device of this embodiment needs to enter the human body for use, the parts in contact with the human body need to be made of medical materials to ensure the biocompatibility requirements for clinical use.

[0112] In clinical use, the surrounding tissues and ligaments of the uterus 500 and the paravaginal tissues are separated and cut, and then the upper vagina is ligated with the tying device 100 to prevent the cervical and affected vaginal wall cancer cells 5-1 from entering the abdominal cavity, and then the vagina 600 is cut to remove the specimen.

[0113] During the specific operation, the tissues and ligaments around the uterus are separated and cut off, and then the uterus is freed, and the tying device 100 is retracted into the delivery sheath 21. The delivery sheath 21 reaches the surgical site through a surgical channel such as a puncture sheath, and the tying device 100 is released from the delivery sheath 21 with a surgical instrument. Figure 1-2 and Figure 1-3 Then, the strapping device 100 is put on the vagina outside the cervical os through the strapping hole 13, and then a surgical forceps 400 is clamped on the fixing mechanism 12, and another surgical forceps 400 is clamped on the distal end 102 of the strapping mechanism 11, and the strapping mechanism 11 is pulled to move, and the strapping hole 13 is closed until the vaginal tissue outside the cervical os is tied together and completely closed, and then the vagina is cut off with an ultrasonic knife 600, reference Figure 1-6 , the uterus 500 with the cervical opening tied and sealed is taken out of the body through the vagina; or the uterus 500 with the cervical opening tied and sealed is placed in an endoscopic retrieval belt and taken out of the body through the vagina 600.

[0114] The endoscopic cervical os strapping system of this embodiment can tie and seal tissues during surgery, effectively preventing blood or tissue fluid from spilling during tissue removal, avoiding tumor cell transplantation, and making the surgery safer. Because the strapping device 100 is retracted in the delivery sheath 21, the strapping device 100 can be easily delivered to the surgical area through surgical channels such as the puncture sheath using the delivery sheath 21, and is particularly suitable for use in endoscopic minimally invasive surgery.

[0115] Example 2: Endoscopic cervical ligation system of the present invention including a push mechanism

[0116] Refer to Figure 2 to Figure 3-1 3. The difference between this embodiment and embodiment 1 is that in this embodiment, the delivery device 200 further includes a pushing mechanism 22.

[0117] The pushing mechanism 22 can push the strapping device 100 out of the delivery sheath 21 to release it.

[0118] The pushing mechanism 22 may be a linkage pushing mechanism 201 connected to the fixing mechanism 12, or may be an independent pushing mechanism 202 that can push the bundling device 100 out through the delivery sheath 21.

[0119] refer to Figure 2 to Figure 2-4The proximal end of the independent pushing mechanism 202 may be provided with a push-pull handle 22-3. By pushing the push-pull handle 22-3, the pushing rod 22-4 of the independent pushing mechanism 202 can move in the delivery sheath 21 to push out and release the bundling device 100 retracted in the delivery sheath 21.

[0120] refer to Figure 3 to Figure 3-6 The pushing mechanism 22 is a linkage pushing mechanism 201. The pushing mechanism 22 comprises a limit device 22-2, a push-pull handle 22-3 and a push rod 22-4. A motion through hole 22-1 is provided on the push rod 22-4 of the pushing mechanism 22, and the distal end of the push rod 22-4 is connected to the limit device 22-2.

[0121] The limiting device 22-2 is provided with a central hole 22-21. The central hole 22-21 is connected to the movement through hole 22-1. The distal end 102 of the bundling mechanism 11 of the bundling device 100 can be exposed outside the delivery device 200 after passing through the central hole 22-21 and the through hole 22-1.

[0122] refer to Figure 3-5 and Figure 3-6 In this embodiment, the fixing mechanism 12 is connected to the limiting device 22-2 through the binding wire 121. Since the fixing mechanism 12 is connected to the pushing mechanism 22, the pushing mechanism 22 can drive the binding device 100 to move back and forth in the delivery sheath 21. At the same time, there is no relative movement between the binding device 100 and the pushing mechanism 22, so it can be prevented that the binding mechanism 11 is accidentally retracted during the process of the binding device 100 being retracted into the delivery sheath 21.

[0123] In this embodiment, the distal end 102 of the strapping mechanism 11 is provided with a pull ring 11 - 2 for facilitating the actuation of the strapping mechanism 11 .

[0124] The proximal end of the delivery sheath 21 is provided with a gripping portion 21-1 and a sealing device 21-2. During clinical use, medical staff can conveniently hold the gripping portion 21-1, which is not easy to slip during pushing and pulling, making it more convenient and safe to use. The sealing device 21-2 can ensure that the delivery sheath 21 is in a sealing device during the delivery and release of the strapping device 100, reducing the impact of the operation process on pneumoperitoneum.

[0125] During clinical use, the push-pull handle 22-3 is first pulled backward, and the pushing device 22 drives the tying device 100 to move backward, and the tying device 100 is retracted into the delivery sheath. Figure 3-7 to Figure 3-9During the operation, the tissues and ligaments around the uterus are separated and cut, the uterus is freed, and then the delivery sheath 21 compressed with the tying device 100 is passed through the surgical channel such as the puncture sheath to reach the surgical site. Figure 3-1 0. Push the pushing mechanism 22 to release the strapping device 100 from the delivery sheath 21, refer to Figure 3-1 1. Then, the strapping device 100 is put on the vagina outside the cervical opening through the strapping hole 13, and the pull ring 11-2 is pulled backward to pull the strapping mechanism 11 to move, closing the strapping hole 13 until the vaginal tissue outside the cervical opening is tied together and completely closed, and then the vagina 600 is cut off with an ultrasonic knife, referring to Figure 3-1 2. At this time, cut the binding wire 121, cut the pull ring 11-2 from the distal end 102 of the binding mechanism 11, and remove the delivery device 200 through the surgical channel. Figure 3-1 3. Then, the uterus 500 with the cervical opening tied and sealed is taken out of the body through the vagina; or the uterus 500 with the cervical opening tied and sealed is placed in an endoscopic retrieval belt and taken out of the body through the vagina.

[0126] Example 3: Endoscopic cervical banding system of the present invention with an opening device

[0127] refer to Figure 4 and Figure 4-1 Compared with Example 2, in this embodiment, the bundling mechanism 11 further includes an opening device 11-4.

[0128] refer to Figure 4-2 In this embodiment, the opening device 11 - 4 is arranged outside the bundling mechanism 11 .

[0129] In practical applications, the binding mechanism 11 may also be a composite structure, such as a soft elastic coating and an opening device 11-4 embedded therein. Those skilled in the art may also design other various structures of the opening device, which the applicant will not illustrate one by one here, but all of them do not depart from the protection scope of this application.

[0130] The opening device 11-4 is an elastic opening device 11-41. The elastic opening device 11-41 includes a spring sheet 11-41-1. The spring sheet 11-41-1 is arranged on the bundling mechanism 11. The spring sheet 11-41-1 can automatically apply an elastic opening force to the bundling mechanism 11.

[0131] During clinical use, when the strapping device 100 is released from the delivery sheath 21, the spring 11-41-1 automatically pops open, exerting an elastic opening force on the strapping mechanism 11, so that the strapping mechanism 11 automatically opens and restores the shape of the strapping hole 13, referring to Figure 4 and Figure 4-2

[0132] Since the opening device is provided, the bundling device 100 can be pre-compressed and gathered in the delivery sheath 21 . When used clinically, the bundling device 100 can be used by simply releasing it, which makes the clinical use process more convenient.

[0133] Example 4: Endoscopic cervical ligation system of the present invention with locking mechanism

[0134] refer to Figure 5 to Figure 6-3 The difference between this embodiment and embodiment 2 is that, in this embodiment, the pushing mechanism 22 also includes a locking mechanism 22-5.

[0135] In this embodiment, the pushing mechanism 22 includes a push-pull handle 22-3, a pushing rod 22-4 and a locking mechanism 22-5.

[0136] refer to Figure 5 to Figure 5-3 The proximal end of the push rod 22-4 is provided with a locking block 22-41, and the locking groove 21-3 provided at the proximal end of the delivery sheath 21 constitutes a locking end 22-51 of the locking mechanism 22-5 of a concave-convex card matching structure. At the same time, the distal end of the push rod 22-4 is provided with a positioning spring 22-42, and the portion of the bundling mechanism 11 close to the fixing device 12 is provided with a limiting groove 11-6, and the bundling mechanism 11 is pushed into the storage space 22-43 of the push rod 22-4. When the limiting groove 11-6 is pushed to the bottom of the positioning spring 22-42, the positioning spring 22-42 pops up and is embedded in the limiting groove 11-6, and the bundling device 100 is positioned in the push rod 22-4. The positioning spring 22-42 and the limiting groove 11-6 constitute the positioning end 22-52 of the locking mechanism 22-5.

[0137] In this embodiment, the locking method of the locking mechanism 22-5 is a concave-convex card fit locking method. In actual application, technicians in this field can design different locking methods such as rotation locking method or interference fit locking method as needed. The applicant will not give examples one by one here, but they all do not deviate from the protection scope of this application.

[0138] refer to Figure 5 and Figure 5-1 The pushing mechanism 22 is disposed in the delivery sheath 21, and the fixing device 12 is exposed outside the delivery sheath 21. During transportation and transfer, the locking end 22-51 is in a locked state, the bundling device 100 is positioned in the pushing rod 22-4, and the pushing mechanism 22 is fixed in the delivery sheath 21 without slipping.

[0139] refer to Figure 6 to Figure 6-3 When used clinically, the push rod 22-4 is rotated, and the locking block 22-41 slides out of the locking groove 21-3, and the locking state of the locking end 22-51 is released. The push rod 22-4 is retracted. Since the fixing device 12 is exposed outside the delivery sheath 21, the fixing device 12 is blocked by the distal end of the delivery sheath 21. During the backward movement of the push rod 22-4, the positioning spring 22-42 is compressed and recovered, and the push rod 22-4 is withdrawn, but the strapping device 100 stays in place and does not move backward with the push rod 22-4. When the push rod 22-4 withdraws from the delivery sheath 21, the strapping device 100 is detached from the delivery sheath 21 and enters the body. Figure 7 to Figure 7-2 Or after the pushing rod 22-4 is moved back a certain distance, the pushing rod 22-4 is pushed forward again, and the friction between the receiving space 22-43 and the bundling mechanism 11 is used to push the bundling device 100 into the body for a certain distance, and then the bundling device 100 is clamped and brought into the body with surgical forceps.

[0140] refer to Figure 8 to Figure 8-2 In this embodiment, a limiting convex step 22-42-1 is provided on the positioning spring piece 22-42, and the limiting convex step 22-42-1 matches the positioning groove 11-1 provided on the bundling mechanism 11. After the bundling device 100 bundles the tissue, the bundling mechanism 11 is placed into the storage space 22-43 with the distal positioning groove 11-1 facing downward, and the positioning groove 11-1 and the limiting convex step 22-42-1 are inlaid together to form a fixed connection, forming a folding mechanism 22-6. The pushing rod 22-4 is moved backward, and the retracting mechanism 22-6 will drive the bundling mechanism 11 to move backward. Under the blocking effect of the end of the delivery sheath 21, the bundling mechanism 11 exposed outside the delivery sheath 21 and the bundling hole 13 formed by the fixing device 12 are gradually retracted to achieve tissue bundling. After bundling, the bundling mechanism 11 is cut off with surgical forceps, and the cut bundling mechanism 11 can be taken out of the body along with the delivery sheath 21 and the pushing rod 22-4, which is very convenient for clinical use.

[0141] It should be noted that the structures disclosed and described herein can be replaced by other structures with the same effect, and the embodiments introduced in the present invention are not the only structures for implementing the present invention. Although the preferred embodiments of the present invention have been introduced and described herein, it is clear to those skilled in the art that these embodiments are only for illustration, and those skilled in the art can make numerous changes, improvements and substitutions without departing from the present invention. Therefore, the protection scope of the present invention should be defined in accordance with the spirit and scope of the claims attached to the present invention.

Claims

1. Endoscopic cervical ligation system, characterized by: The endoscopic cervical os strapping system (900) comprises a strapping device (100) and a delivery device (200), wherein the strapping device (100) can be folded inside the delivery device (200); A. The bundling device (100) comprises a bundling mechanism (11), a fixing mechanism (12) and a bundling hole (13); B. The bundling mechanism (11) is provided with at least one positioning groove (11-1); the fixing mechanism (12) comprises a through hole (12-1) and at least one positioning convex step (12-2); the proximal end (101) of the bundling mechanism (11) is connected to the fixing mechanism (12), and the distal end (102) of the bundling mechanism (11) passes through the through hole (12-1) to form a bundling hole (13); the positioning convex step (12-2) is embedded in the positioning groove (11-1) to prevent the distal end (102) of the bundling mechanism (11) from loosening or slipping out of the fixing mechanism (12); C. The delivery device (200) comprises a delivery sheath (21) and a pushing mechanism (22); the bundling device (100) is retracted into the delivery sheath (21), and a limiting device (22-2) is provided at the distal end of the pushing mechanism (22); the fixing mechanism (12) is connected to the limiting device (22-2) via a bundling wire (121), and no relative movement occurs between the bundling device (100) and the pushing mechanism (22), thereby preventing the bundling mechanism (11) from accidentally causing a retraction movement when the bundling device (100) is retracted into the delivery sheath (21).

2. The endoscopic cervical ligation system according to claim 1, characterized in that: The strapping mechanism (11) is a strapping belt (1-1).

3. The endoscopic cervical ligation system according to claim 2, characterized in that: The binding belt (1-1) is made of soft elastic medical material.

4. The endoscopic cervical ligation system according to claim 1, characterized in that: The positioning groove (11-1) is a continuously adjustable continuous positioning groove (11-11).

5. The endoscopic cervical ligation system according to claim 1, characterized in that: The positioning groove (11-1) is a unidirectional motion groove (11-12).

6. The endoscopic cervical ligation system according to claim 1, characterized in that: The pushing mechanism (22) can push out the bundling device (100) retracted in the delivery sheath (21).

7. The endoscopic cervical ligation system according to claim 1, characterized in that: The pushing mechanism (22) comprises a moving through hole (22-1); the distal end (102) of the bundling mechanism (11) of the bundling device (100) passes through the moving through hole (22-1) and is exposed outside the delivery device (200).

8. The endoscopic cervical ligation system according to claim 7, characterized in that: A pull ring (11-2) is provided at the distal end (102) of the bundling mechanism (11).

9. The endoscopic cervical ligation system according to claim 2, characterized in that: The bundling mechanism (11) is provided with an anti-slip mechanism (11-3).

10. The endoscopic cervical ligation system according to claim 9, characterized in that: The anti-slip mechanism (11-3) is an anti-slip pattern (11-31) or an anti-slip convex step (11-32) provided on the bundling mechanism (11).

11. The endoscopic cervical ligation system according to claim 10, characterized in that: The anti-slip grooves (11-31) are distributed along the longitudinal direction of the binding belt (1-1).

12. The endoscopic cervical ligation system according to claim 1, characterized in that: The bundling mechanism (11) is provided with an opening device (11-4).

13. The endoscopic cervical ligation system according to claim 12, characterized in that: The opening device (11-4) is an elastic opening device (11-41).

14. The endoscopic cervical ligation system according to claim 6, characterized in that: A push-pull handle (22-3) is provided at the proximal end of the pushing mechanism (22).

15. The endoscopic cervical ligation system according to claim 1, characterized in that: The proximal end of the delivery sheath tube (21) is provided with a gripping portion (21-1).

16. The endoscopic cervical ligation system according to claim 6, characterized in that: The pushing mechanism (22) further comprises a locking mechanism (22-5); when the locking mechanism (22-5) is in a locked state, the bundling device (100) is fixed in the delivery sheath tube (21) and will not fall out of the delivery sheath tube (21).

17. The endoscopic cervical ligation system according to claim 16, characterized in that: The locking method of the locking mechanism (22-5) is a concave-convex snap-fit ​​locking method, a rotation locking method, or an interference fit locking method.

18. The endoscopic cervical ligation system according to claim 6, characterized in that: The pushing mechanism (22) further comprises a folding mechanism (22-6); after the tying device (100) has tied the tissue, the folding mechanism (22-6) can tighten the tying device (100) and bring the remaining portion of the tying mechanism (11) out of the body through the pushing mechanism (22).

19. The endoscopic cervical ligation system according to claim 1, characterized in that: The endoscopic cervical ligation system (900) is made of medical materials.

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