Multifunctional double-arm suturing clamp under endoscope

Abstract

The embodiment of the invention relates to the field of medical auxiliary instruments, in particular to an endoscopic multifunctional double-arm suture clamp which comprises a handle, an outer tube, a loose joint piece, a steering snake bone, a connecting sleeve and a clamp tube, a first clamping piece set and a second clamping piece set are arranged in the clamp tube, the first clamping piece set and the second clamping piece set each comprise an inner clamping piece and an outer clamping piece, the head end of the first clamping piece set and the head end of the second clamping piece set are respectively connected with a loose joint piece, a positioning ring is arranged at the opening end of the clamp tube, the outer side shapes of the two outer clamping pieces are matched with the inner wall of the positioning ring, the clamp tube, the connecting sleeve and the steering snake bone are sequentially connected, the steering snake bone is installed on the outer tube, and the outer tube is connected with the connecting sleeve. The handle is connected with the outer pipe, a steering shifting piece is arranged on the handle, the two loose joint pieces are connected with two sliding blocks arranged at the handle through inhaul cables respectively, and the two sides of the steering snake bone are connected with the two sides of the steering shifting piece through the two steering inhaul cables respectively.

Description

Technical Field

[0001] Multiple embodiments of the present specification relate to the field of medical auxiliary equipment, and specifically to an endoscopic multifunctional double-arm suture clamp. Background Art

[0002] With the advancement of minimally invasive surgical techniques, more and more gastrointestinal surgeries are being performed using flexible endoscopes, which can reduce physical trauma to patients and speed up recovery. However, during complex surgeries such as mucosal stripping, there is a high risk of tissue perforation, such as gastric or intestinal perforation. Once such complications occur, they not only pose a great health risk to patients, but are also very difficult to handle under endoscopy. Traditional suturing methods usually require the use of multiple suture clips with nylon ropes to close the wound, which is time-consuming and laborious, and may increase the patient's trauma due to improper operation. Therefore, in order to overcome these difficulties, the medical community has developed more advanced endoscopic suture clips. The new suture clip design is designed to simplify the suturing process, improve surgical efficiency, and reduce the harm of surgery to patients. Endoscopic suture clips can be quickly deployed directly through the endoscope, reducing the time and complexity of the operation, and improving the safety and success rate of the operation. However, the current endoscopic suture clips have the problem of loose clamping and high difficulty in operation. Therefore, it is necessary to continue to improve the endoscopic suture clip device. Summary of the invention

[0003] Multiple embodiments of this specification describe an endoscopic multifunctional double-arm suture clip.

[0004] The embodiment of this specification provides an endoscopic multifunctional double-arm suture clip, comprising: Handle, outer tube, joint, steering snake bone, connecting sleeve, clamp tube, The clamp tube is provided with a first clamp group and a second clamp group, a spacer is provided between the first clamp group and the second clamp group, and the spacer is connected to the clamp tube. The first clip set and the second clip set both include an inner clip and an outer clip. The first and second clip sets are connected to the joint at their head ends, respectively. A positioning ring is provided at the open end of the clamp tube. The outer shapes of the two outer clips match the inner wall of the positioning ring. When the first and second clip sets move backward relative to the clamp tube, the positioning ring causes the corresponding outer clips to move closer to the inner clips. The clamp tube, the connecting sleeve, and the steering snake are connected in sequence, the steering snake is installed on the outer tube, the handle is connected to the outer tube, and a steering paddle is provided on the handle. Two cables and two steering cables are arranged in the outer tube, the two joints are connected to the two sliders arranged at the handle through the cables respectively, the two sides of the steering snake are connected to the two sides of the steering paddle through the two steering cables respectively, the steering paddle is rotatably connected to the handle, and the two sliders are slidably installed on the handle.

[0005] The beneficial effects brought by the technical solutions provided by some embodiments of this specification include at least: In multiple embodiments of the present specification, a multifunctional double-arm suture clamp is provided with a higher bite force, is not prone to unclamping, can quickly and conveniently close large wounds, and helps to complete the surgical procedure more smoothly. Through the cooperation of the steering snake bone, the suture clamp can achieve swinging motion, and combined with the rotational motion, the suture clamp can adapt to more complex surgical environments, thereby increasing the scope of application of the suture clamp. The improved inner clip can provide an adjustable bite force, and the bite force can be customized as needed to ensure the reliability of wound tissue clamping. The inner clip is made more stable by the isolation sheet, which can provide a greater bite force and facilitate the bite of the wound tissue on the side that is first bitten, thereby improving surgical efficiency.

[0006] Other features and advantages of the various embodiments of the present specification will be further disclosed in the following detailed description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of this specification, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0008] Figure 1 This is a schematic diagram of the suture clip structure provided in an embodiment of this specification.

[0009] Figure 2 This is a schematic diagram of the cross-sectional structure of the suture clip provided in an embodiment of this specification.

[0010] Figure 3 This is a schematic diagram of the structure of the suture clamp part provided in the embodiment of this specification.

[0011] Figure 4 A schematic diagram of one side of the suture clip provided in an embodiment of the present specification.

[0012] Figure 5 A schematic diagram of the engagement of two sides of a suture clip provided in an embodiment of this specification.

[0013] Figure 6 A schematic diagram of a clamp tube provided in an embodiment of this specification.

[0014] Figure 7 This is a schematic diagram of the outer clip provided in the embodiment of this specification.

[0015] Figure 8 A schematic diagram of the steering snake swing provided in an embodiment of this specification.

[0016] Fig. 9 A schematic diagram of the suturing process using a suture clip provided in an embodiment of this specification.

[0017] Among them: 1. first inner clip, 2. second inner clip, 3. second outer clip, 4. isolation plate, 5. first outer clip, 6. positioning ring, 7. clamp tube, 8. connecting sleeve, 9. steering snake, 10. cable, 11. steering cable, 12. outer tube, 13. steering paddle, 14. handle, 15. slider, 16. finger ring, 17. pull rod, 18. pin, 19. joint, 51. clamp, 52. connecting hole, 53. protrusion, 71. locking hole, 80. wound. DETAILED DESCRIPTION

[0018] The following is an explanation and description of the technical solutions of the embodiments of this specification in conjunction with the drawings of the embodiments of this specification, but the following embodiments are only preferred embodiments of this specification, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of this specification.

[0019] The terms "first", "second", "third", etc. in the description and claims of this specification and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0020] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of this specification.

[0021] Before describing the technical solution in this specification, an introduction to the application scenarios of the technical solution is given.

[0022] An endoscope is a medical device used for internal examination and treatment. It enters the body through natural cavities (such as the mouth, nose, anus, etc.) or small incisions to achieve direct observation and operation of internal organs. An endoscope consists of a long and thin tube with a lighting device and a camera inside. Doctors can view images of the body in real time through the camera connected to a monitor, so as to accurately judge the condition and carry out corresponding treatment.

[0023] For example, in the digestive system, gastroscopes, colonoscopes, duodenoscopes, etc. are used to diagnose and treat diseases such as gastritis, gastric ulcers, polyps, tumors, etc. In the respiratory system, bronchoscopes are used to examine lesions in the trachea, bronchi, etc. In the urinary system, cystoscopes, ureteroscopes, etc. are used to examine diseases of the urinary system. In gynecology, hysteroscopy is used to examine the inside of the uterus. In surgery, laparoscopes are used for abdominal surgery, such as cholecystectomy, appendectomy, etc.

[0024] The development of endoscopic technology has greatly promoted the progress of medical diagnosis and treatment, especially in the diagnosis and treatment of digestive system diseases, respiratory system diseases and urinary system diseases.

[0025] Tissue perforation is a common complication in endoscopic surgery, especially in gastrointestinal surgery (such as mucosal dissection). Once perforation occurs, it not only increases the risk of surgery, but may also lead to serious postoperative complications. Traditional treatment methods often require the use of multiple suture clips with nylon thread to suture the wound, which is not only time-consuming, but may also cause greater trauma due to improper operation. Therefore, it is urgent to develop an instrument that can quickly, effectively and safely complete suturing under endoscopy.

[0026] Endoscopic suture clips were developed under this circumstance. Compared with traditional methods, endoscopic suture clips can complete the closure of wounds in one operation, significantly shortening the operation time. Suture clips can be quickly deployed through an endoscope, reducing the complexity of the operation. Suture clips are usually made of biocompatible materials to ensure that they do not cause tissue rejection. For example, in the repair of gastrointestinal perforation, the use of suture clips under endoscopy can quickly close the perforation, reduce the risk of infection, and speed up patient recovery. In hemostasis after polypectomy, the use of suture clips can effectively stop bleeding and prevent bleeding. In gastrointestinal anastomosis, suture clips can be used to close the anastomosis to ensure the tightness and safety of the anastomosis.

[0027] However, the existing endoscopic suture clips are not suitable for large wounds or have insufficient clamping force, and are prone to detachment. To this end, this specification provides an improved endoscopic suture clip.

[0028] Please see attached Figure 1 To Attachment Figure 3The present specification provides an endoscopic multifunctional double-arm suture clamp, comprising: a handle 14, an outer tube 12, a joint 19, a steering snake bone 9, a connecting sleeve 8, and a clamp tube 7. The clamp tube 7 is provided with a first clip group and a second clip group, wherein the first clip group comprises a first inner clip 1 and a first outer clip 5, and the second clip group comprises a second inner clip 2 and a second outer clip 3. The first inner clip 1 and the second inner clip 2 are both referred to as inner clips, and the first outer clip 5 and the second outer clip 3 are both referred to as outer clips. A spacer 4 is provided between the first clip group and the second clip group, and the spacer 4 is connected to the clamp tube 7. The spacer 4 is fixed relative to the clamp tube 7, and the spacer 4 serves to increase the firmness of the first inner clip 1 and the second inner clip 2, and can provide support for the inner clip. A greater bite force can be formed between the inner clip and the outer clip, the bite firmness is improved, and the probability of detachment can be effectively reduced. The first and second clamping pieces are connected to the joint piece 19 at their head ends. When the joint piece 19 is pulled, the outer and inner clamping pieces are driven to move backward relative to the clamp tube 7. When the outer and inner clamping pieces are engaged, and the protrusion of the outer clamping piece matches the locking hole 71 provided on the clamp tube 7, pulling the joint piece 19 again will cause the joint piece 19 to deform and finally break away from the connection with the outer and inner clamping pieces. Thus, the connecting sleeve 8 can be separated from the clamp tube 7.

[0029] The opening end of the clamp tube 7 is provided with a positioning ring 6, and the outer shapes of the two outer clips match the inner wall of the positioning ring 6. When the first clip group and the second clip group move backward relative to the clamp tube 7, the positioning ring 6 makes the corresponding outer clips move closer to the inner clips. The outer shapes of the outer clips match the inner wall of the positioning ring 6, which can ensure that the position of the outer clips does not deviate except for the backward movement, and improve the stability and reliability of the clamping of the clip group. The clamp tube 7, the connecting sleeve 8, and the steering snake 9 are connected in sequence. The steering snake 9 is installed on the outer tube 12, the handle 14 is connected to the outer tube 12, and the handle 14 is provided with a steering paddle 13. Two cables 10 and two steering cables 11 are provided in the outer tube 12, and the two movable joints 19 are respectively connected to the two sliders 15 provided at the handle 14 through the cables 10. As a preference, the two movable joints 19 can be connected to the cables 10 through the pull rods 17. The two sides of the steering snake 9 are connected to the two sides of the steering paddle 13 through the two steering cables 11, and the steering paddle 13 is rotatably connected to the handle 14. The two sliders 15 are slidably installed on the handle 14. The sliders 15 on both sides can be controlled separately, so that the first clamping piece group and the second clamping piece group can be engaged separately. A finger ring 16 can be set at the handle 14, and the finger ring 16 can be conveniently taken.

[0030] Please see attached Figure 4 To Attachment Figure 7, the ends of the inner and outer clips are both provided with bends, and after the first clip group and the second clip group are closed, the corresponding inner side of the bend of the outer clip contacts the outer side of the bend of the inner clip. The bends at the ends of the inner and outer clips are provided with teeth. The teeth of the bends of the two outer clips can bite each other. The outer clip includes a clamping claw 51, a connecting hole 52 and a protrusion 53. The protrusion 53 matches the locking hole 71. The inner and outer clips of the first and second clip groups are connected by a pin 18. The connecting hole 52 is used to cooperate with the pin 18, and the inner clip is provided with a corresponding matching connecting hole 52. The front end of the clamping claw 51 is provided with teeth, and the side shape of the clamping claw 51 matches the inner wall shape of the positioning ring 6. The length of the isolation sheet 4 extending out of the clamp tube 7 is less than the length of the clamp tube 7 extending out of the first and second clip groups when the clamp tube 7 is closed. The rear part of the clamp tube 7 is provided with a lock hole 71, and the tail part of the outer clip is provided with a protrusion, and the position of the protrusion matches the lock hole 71 when the first clip group and the second clip group are closed. Compared with the endoscopic suture clip disclosed in the art, the structure equivalent to the inner clip is not bent, and its length is slightly longer than the outer clip, the clamping force is low, and it is easy to cause the clamp to be unclamped during the movement. And there is no gap between the two structures equivalent to the inner clip. During the first clamping, the clip on one side retracts to clamp the tissue, and the structure on the other side that extends will affect the clamping position of the retracted clip, resulting in poor clamping effect and easy unclamping. After the suture clip completes clamping, the structure equivalent to the inner clip will be pulled out. The pulling process will cause tissue damage, and it is easy to cause the suture clip to shift or even unclamp during the pulling process. After the suture clip recorded in this specification completes the occlusion, the two inner clips, the two outer clips, the isolation sheet 4, and the clamp tube 7 are all retained in the patient's body, and will not cause secondary damage to the patient during the detachment process. On the other hand, the inner clip is provided with a notch, and during the operation, the doctor can use the forceps to bend the inner clip outward according to the situation. The greater the degree of bending, the greater the final bite force. Thus, the final bite force can be customized according to the needs. At the same time, a gap is formed between the two bent inner clips. After the two clip groups have just bitten the tissues on both sides of the wound 80, the tissues on both sides of the wound 80 can be supported by the gap between the inner clips. After the wound 80 is cleaned, the slider 15 is continued to be pulled, and the outer clip will drive the inner clip to deform under the action of the positioning ring 6, and finally the inner clip is deformed back to a straight shape, and finally the tissues on both sides of the wound 80 are brought close to each other and bitten.

[0031] Please see attached Figure 8, the outer tube 12 is a flexible tube. A steering paddle 13 is provided at the handle 14. When the steering paddle 13 rotates, the steering snake 9 will be driven to swing through the two steering cables 11, which is a left-right swing when viewed from a plane. In conjunction with the rotating handle 14, the rotating handle 14 will drive the steering outer tube 12, the steering snake 9, the connecting sleeve 8, and the clamp tube 7 to rotate, thereby realizing a rotation and swinging movement, so that the suture clamp can adapt to a more complex in vivo environment. After the clip group on one side bites the tissue, in conjunction with the rotation and swinging of the steering snake 9, the tissue can be picked up as needed to assist in the required surgical operation or observe the condition of the area covered by the tissue.

[0032] Please see attached Fig. 9 , is a schematic diagram of the use process of the endoscope suture clip provided in this specification for suturing a wound 80. First, pull the slider 15 on one side to make the first clip group (or the second clip group) bite the tissue on one side of the wound 80, and then move the clamp tube 7 of the suture clip to drive the tissue on one side of the wound 80 to move to the other side. After moving to the tissue on the other side, pull the slider 15 on the other side to make the second clip group (or the first clip group) bite the tissue on the other side of the wound 80. Then further pull the sliders 15 on both sides to make the protrusion of the outer clip snap into the lock hole 71, so that the outer clip can no longer be moved. The lock hole 71 is only set on one side, exemplarily, it is set at the second outer clip 3, and the elastic retreat of the second outer clip 3 makes the protrusion shrink in the clamp tube 7 when it is not in use. When the position of the protrusion matches the lock hole 71, the second outer clip 3 is deformed to make the protrusion snap into the lock hole 71. Then further pulling the sliders 15 on both sides will cause the joint 19 to be disconnected from the two clip groups, so that the connecting sleeve 8 is disconnected from the clamp tube 7, so that the connecting sleeve 8, the steering snake 9, and the outer tube 12 can be pulled out of the patient's body. The joint 19 forms a detachable connection with the first inner clip and the second inner clip. When the zipper 10 applies sufficient pulling force, the first outer clip 3 and the locking hole 71 are stuck, so the joint 19 can be disconnected from the first inner clip and the second inner clip. The joint 19 is relatively fixedly connected to the connecting sleeve 8, and the steering cable 11 is relatively fixedly connected to the connecting sleeve 8. Please refer to the attached again. Figure 5 , the clamp sleeve, two clamp sets, and isolation plate 4 remain in the patient's body. The two clamp sets not only generate a clamping force due to the close proximity of the outer clamp and the inner clamp, but also form an extrusion force between the bends of the outer clamp and the inner clamp. The clamping force and the extrusion force together clamp the tissue, forming a stable and reliable clamp. The clamp sleeve, two clamp sets, and isolation plate 4 are made of biocompatible materials and are gradually absorbed by the patient. During the process, the clamp tube 7 can be driven to rotate by rotating the handle 14. The steering snake 9 is swung by rotating the steering paddle 13, so that the clamp tube 7 can swing. Thereby, the clamp tube 7 can adapt to more complex surgical environments.

[0033] The embodiments described above are merely preferred embodiments of this specification and are not intended to limit the scope of this specification. Without departing from the design spirit of this specification, various modifications and improvements made to the technical solutions of this specification by ordinary technicians in this field should fall within the scope of protection determined by the claims of this specification.

Claims

1. An endoscopic multifunctional double-arm suture clamp, characterized in that: include: Handle, outer tube, joint, steering snake bone, connecting sleeve, clamp tube, The clamp tube is provided with a first clamp group and a second clamp group, a spacer is provided between the first clamp group and the second clamp group, and the spacer is connected to the clamp tube. The first clip set and the second clip set both include an inner clip and an outer clip. The first and second clip sets are connected to the joint at their head ends, respectively. A positioning ring is provided at the open end of the clamp tube. The outer shapes of the two outer clips match the inner wall of the positioning ring. When the first and second clip sets move backward relative to the clamp tube, the positioning ring causes the corresponding outer clips to move closer to the inner clips. The clamp tube, the connecting sleeve, and the steering snake are connected in sequence, the steering snake is installed on the outer tube, the handle is connected to the outer tube, and a steering paddle is provided on the handle. Two cables and two steering cables are arranged in the outer tube, the two joints are connected to the two sliders arranged at the handle through the cables respectively, the two sides of the steering snake are connected to the two sides of the steering paddle through the two steering cables respectively, the steering paddle is rotatably connected to the handle, and the two sliders are slidably installed on the handle.

2. The endoscopic multifunctional double-arm suture clamp according to claim 1, characterized in that: The ends of the inner clip and the outer clip are both provided with bends. After the first clip group and the second clip group are closed, the inner side of the bend of the corresponding outer clip contacts the outer side of the bend of the inner clip.

3. The endoscopic multifunctional double-arm suture clamp according to claim 2, characterized in that: The bends at the ends of the inner clamping piece and the outer clamping piece are provided with teeth.

4. The endoscopic multifunctional double-arm suture clamp according to claim 2 or 3, characterized in that: The bent teeth of the two outer clips can mesh with each other.

5. The endoscopic multifunctional double-arm suture clamp according to any one of claims 1 to 3, characterized in that: A locking hole is arranged at the rear of the clamp tube, and a protrusion is arranged at the tail of the outer clip. When the first clip group and the second clip group are closed, the position of the protrusion matches the locking hole.

6. The endoscopic multifunctional double-arm suture clamp according to any one of claims 1 to 3, characterized in that: The length of the isolation sheet extending out of the clamp tube is shorter than the length of the isolation sheet extending out of the clamp tube when the first clamp set and the second clamp set are closed.

7. The endoscopic multifunctional double-arm suture clamp according to any one of claims 1 to 3, characterized in that: The outer tube is a flexible tube.

8. The endoscopic multifunctional double-arm suture clamp according to any one of claims 1 to 3, characterized in that: The inner clips and the outer clips of the first clip group and the second clip group are connected by pins.

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