Endoscopic port suture clip
By designing the double-sided independent control clamping structure and slider limiting groove mechanism of the endoscopic channel suture clip, the suture problem of large defect wounds in endoscopic minimally invasive surgery is solved, and efficient clamping of large defect wounds and Precision operation improves the reliability and safety of the surgery.
Patent Information
- Application Number
- CN201910517958.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2019-05-15
- Filing Date
- 2019-06-14
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2039-06-14
AI Technical Summary
In existing endoscopic minimally invasive surgery, there are problems in handling gastrointestinal mucosal defect suture, especially large defects and difficult parts. Conventional hemostasis clamps are difficult to effectively clamp, and existing high-end equipment is complex and expensive to operate.
An endoscope channel suture clip is designed, adopting a combined structure of a shell, clamping core, clamping part and control assembly. The clamping part independently controlled on both sides can clamp the large defect wound surface and pass the slider and limit The slot mechanism enables precise opening and closing operations, ensuring that the clamping part remains locked when no additional force is required.
The equipment can effectively clamp defective wounds in large sizes or difficult operating parts, make up for the defects of single-sided clamping of conventional hemostatic clamps, improve the reliability of suture and operation convenience, and reduce the technical requirements and costs for the operator. .
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Figure CN110141295B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of medical technology, and in particular to an endoscope channel suturing clip. Background Art
[0002] The description of the background technology in the present invention belongs to the related technology related to the present invention, which is only used to illustrate and facilitate the understanding of the invention content of the present invention, and should not be understood as the applicant explicitly believes or inferred that the applicant believes that it is the prior art of the present invention on the filing date of the first application.
[0003] With the development of endoscopic minimally invasive technology, some gastrointestinal diseases that previously required surgical laparotomy or laparoscopy, such as early gastrointestinal tumors, can be treated under minimally invasive digestive endoscopy. During endoscopic minimally invasive surgery, suturing of gastrointestinal mucosal defects, including gastrointestinal bleeding and perforation, is the most common problem. At present, the main defect suturing methods used are endoscopic clamps, nylon rope combined with endoscopic clamp purse string suture and endoscopic suturing device (OTSC). Endoscopic clamps are simple to use and inexpensive, but they are difficult to repair for larger defects or defects in difficult locations. OTSC was invented by foreign experts, is expensive, and is complicated to operate, requiring preliminary training before use. Therefore, an "endoscopic channel suture clamp" was designed, which aims to clamp and suture large gastrointestinal defects and defects in difficult operating locations simply, quickly and effectively. Summary of the invention
[0004] The present invention provides an endoscope channel suturing clamp comprising: a shell, wherein a first slide groove is symmetrically arranged on the shell, and the first slide groove is arranged along the axial direction of the shell; a clamping core, wherein the clamping core is fixedly connected to the shell; two clamping parts, wherein the two clamping parts are installed on the shell through a rotating shaft and can rotate relative to the shell, and the clamping parts are provided with a second slide groove, and the second slide groove includes a guide groove and a limit groove; and two control components, wherein the two control components are respectively connected to the two clamping parts, and the two control components independently control the two clamping parts to open or close relative to the clamping core to clamp the target object; wherein the control component comprises: a slider, wherein the slider is arranged in the second slide groove and can slide in the second slide groove, and after the clamping part and the clamping core are closed, the slider can be stuck in the limit groove; and a control member, wherein one end of the control member is connected to the slider, and the other end extends out of the shell, and a part of the control member is located in the first slide groove and can slide in the first slide groove.
[0005] The endoscope channel suture clamp provided by the present invention has two clamping parts that are connected to the control component, and the control component can control the two clamping parts to open or close independently relative to the clamping core, so that it has the function of clamping and closing large defect wounds on both sides, which makes up for the defect that large defect wounds can only be clamped on one side by conventional hemostatic clamps, and can thus treat defect wounds of large size or difficult to operate parts. The control part has a certain rigidity, so that the travel of the slider and the control part are the same, and the operator can control the opening and closing of the clamping part within a smaller range through the cooperation of the control part and the slider, so as to achieve a more precise defect wound. The first slide groove guides and fixes the control part, ensures the stable movement of the control part along a fixed direction, avoids the control part from slipping, and thus ensures the reliability of the product. In addition, the control member drives the slider to slide into the limit groove, and the slider is confined in the limit groove, so that the clamping part and the clamping core are in a closed and locked state without the operator applying force, which is convenient for the operator to perform other operations; when it is necessary to release this state, the operator only needs to push the control member forward as needed, so that the control member drives the slider to slide out of the limit groove.
[0006] Optionally, the shell is provided with a first through slot penetrating the shell, the two clamping parts are located in the first through slot, and the first sliding slots are respectively provided on two symmetrical slot walls of the first through slot; the first sliding slot is a through hole penetrating the shell.
[0007] Optionally, the outer shell includes: a fixed shell, a second through groove is provided on one end of the fixed shell; and a connecting shell, the connecting shell is provided at one end of the fixed shell, the connecting shell seals the opening of the second through groove, and forms the first sliding groove together with the second through groove.
[0008] Optionally, the shell further includes: a shell body, on which the first slide groove is arranged; and a first partition, which is fixed in the shell body, and the first partition divides the shell body into two symmetrical channels, and the two control members are respectively located in the two channels.
[0009] Optionally, the sub-grooves are respectively arranged on both sides of the first spacer, and the sub-grooves are arranged corresponding to the first sliding grooves.
[0010] Optionally, a shaft hole is provided at one end of the first spacer, and the shaft is located in the shaft hole; an insert is symmetrically provided at the other end of the first spacer, and a slot matching the insert is provided on the shell.
[0011] Optionally, the side wall of the shell at the first sliding groove is recessed into the shell to form an escape space.
[0012] Optionally, the shell includes: a fixing part, one end of which is connected to the clamping core, the two clamping parts are respectively located on both sides of the fixing part, a third slide groove is provided on the fixing part, one end of the slider is located in the third slide groove; and a connecting tube, the connecting tube is connected to the other end of the fixing part; the first slide groove is provided on the inner wall of the connecting tube.
[0013] Optionally, the shell includes: a fixing part, one end of which is connected to the clamping core, the two clamping parts are respectively located on both sides of the fixing part, a third slide groove is provided on the fixing part, and one end of the slider is located in the third slide groove; a connecting tube, the connecting tube is connected to the other end of the fixing part; and a second partition, the second partition is fixed in the connecting tube, the second partition divides the connecting tube into two symmetrical channels, the first slide grooves are respectively provided on both sides of the second partition, and the two control parts are respectively located in the two channels.
[0014] Optionally, the shell includes: a fixing part, one end of which is connected to the clamping core, the two clamping parts are respectively located on both sides of the fixing part, a third slide groove is provided on the fixing part, one end of the slider is located in the third slide groove; and a connecting pipe, the connecting pipe is connected to the other end of the fixing part; the first slide groove is a through hole that penetrates the shell.
[0015] Optionally, the control member includes: a connecting ring, which is sleeved on the slider; a control rod, one end of which is fixedly connected to the connecting ring and the other end extends out of the shell; and a sliding column, which is fixed on the slider, the sliding column is located in the first sliding groove, and can slide in the first sliding groove.
[0016] Optionally, a fracture opening is provided on the connecting ring, and the fracture opening is located at an end away from the connection between the connecting ring and the control rod.
[0017] Optionally, the control member includes: a connecting plate, one end of which is connected to the slider; a connecting ring, which is connected to the other end of the connecting plate through a connecting shaft, one end of the connecting shaft is located in the first slide groove and can slide in the first slide groove; and a control rod, one end of which is fixedly connected to the connecting ring and the other end extends out of the outer shell.
[0018] Optionally, a breaking zone is provided on the connecting ring, and the breaking zone is located at an end away from a connection between the connecting ring and the control rod, and a width of the connecting ring at the breaking zone is smaller than a width of other areas of the connecting ring.
[0019] Optionally, a limiting protrusion is provided at the connection between the guide groove and the limiting groove.
[0020] Optionally, there is an angle between the guide groove and the limiting groove.
[0021] Optionally, the endoscopic channel suture clamp also includes: a protective shell and a locking piece, wherein the protective shell is detachably connected to the outer shell via the locking piece, and the other end of the control rod passes through the locking piece and extends out of the protective shell; along the movement direction of the control piece, the connecting ring can interfere with the locking piece.
[0022] Optionally, the locking component includes: a fixing ring, the diameter of which is smaller than the diameter of the connecting ring; and a plurality of elastic arms, one end of each of which is fixedly connected to the fixing ring and arranged along the circumference of the fixing ring, and the other end of each of the elastic arms is bent toward one side of the elastic arm to form a pin; a plurality of first connecting holes are provided on the protective shell, and a plurality of second connecting holes corresponding to the first connecting holes are provided on the outer shell; the locking component is provided in the protective shell, and the pins are inserted into the first connecting holes and the second connecting holes in sequence to fix the protective shell to the outer shell, and the other end of the control component passes through the fixing ring and extends out of the protective shell.
[0023] Optionally, the locking component includes: a connecting frame; a plurality of elastic arms, one end of each of the elastic arms is fixedly connected to the connecting frame, and the other end of the elastic arm is bent toward one side of the elastic arm to form a pin; and two release rings, the two release rings are respectively mounted on the two elastic arms, and the diameter of the release ring is smaller than the diameter of the connecting ring; a plurality of first connecting holes are provided on the protective shell, and a plurality of second connecting holes corresponding to the first connecting holes are provided on the outer shell; the locking component is arranged in the protective shell, and the pin is sequentially inserted into the first connecting hole and the second connecting hole to fix the protective shell to the outer shell, and the other end of the control component passes through the release ring and extends out of the protective shell.
[0024] Optionally, the protective shell includes a spring hose and a fixing tube, the spring hose is connected to the fixing tube, and the fixing tube is provided with the first connecting hole.
[0025] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0027] Figure 1 It is a structural schematic diagram of a first embodiment of the endoscope channel suture clamp of the present invention;
[0028] Figure 2 yes Figure 1 The schematic diagram of the exploded structure of the endoscope channel suture clip shown;
[0029] Figure 3 yes Figure 1 A schematic cross-sectional view of the endoscope channel suture clip is shown;
[0030] Figure 4 It is a structural schematic diagram of the first embodiment of the control member and the clamping portion of the present invention;
[0031] Figure 5 It is a structural schematic diagram of a second embodiment of the control member and the clamping portion of the present invention;
[0032] Figure 6 is a structural schematic diagram of a first embodiment of the clamping portion of the present invention;
[0033] Figure 7 is a structural schematic diagram of a second embodiment of the clamping portion of the present invention;
[0034] Figure 8 It is a structural schematic diagram of a first embodiment of the control rod and the connecting ring of the present invention;
[0035] Fig. 9 is a structural schematic diagram of a second embodiment of the control rod and the connecting ring of the present invention;
[0036] Fig.10 is a schematic structural diagram of a first embodiment of the locking element of the present invention;
[0037] Fig.11 is a structural schematic diagram of a second embodiment of the locking element of the present invention;
[0038] Fig.12 It is a structural schematic diagram of a second embodiment of the endoscope channel suture clip of the present invention;
[0039] Fig.13 yes Fig.12 The schematic diagram of the exploded structure of the endoscope channel suture clip shown;
[0040] Fig.14 yes Fig.12 A schematic cross-sectional view of the endoscope channel suture clip is shown;
[0041] Fig.15 It is a structural schematic diagram of a third embodiment of the endoscope channel suture clip of the present invention;
[0042] Fig.16 yes Fig.15 The schematic diagram of the exploded structure of the endoscope channel suture clip shown;
[0043] Fig.17a yes Fig.15 A schematic diagram of the cross-sectional structure of the endoscope channel suture clip in the first direction is shown;
[0044] Fig.17b yes Fig.15 A schematic diagram of a cross-sectional structure of the endoscope channel suture clip in a second direction;
[0045] Fig.18 It is a structural schematic diagram of a fourth embodiment of the endoscope channel suture clamp of the present invention;
[0046] Fig.19 yes Fig.18 The schematic diagram of the exploded structure of the endoscope channel suture clip shown;
[0047] Fig. 20 yes Fig.18 A schematic cross-sectional view of the endoscope channel suture clip is shown;
[0048] Fig.21 is a structural schematic diagram of a fifth embodiment of the endoscope channel suture clip of the present invention;
[0049] Fig. 22 yes Fig.21 The schematic diagram of the exploded structure of the endoscope channel suture clip shown;
[0050] Fig.23 yes Fig.21 A schematic cross-sectional view of the endoscope channel suture clip is shown;
[0051] Fig.24 yes Fig.21 A schematic diagram of the structure of the fixed shell shown in;
[0052] Fig.25 It is a schematic structural diagram of a sixth embodiment of the endoscope channel suture clamp of the present invention.
[0053] Fig.26 yes Fig.25 The schematic diagram of the exploded structure of the endoscope channel suture clip shown;
[0054] Fig. 27 yes Fig.25 A schematic cross-sectional view of the endoscope channel suture clip is shown;
[0055] Fig.25 It is a schematic structural diagram of a sixth embodiment of the endoscope channel suture clamp of the present invention.
[0056] Fig.26 yes Fig.25 The schematic diagram of the exploded structure of the endoscope channel suture clip shown;
[0057] Fig. 27 yes Fig.25 A schematic cross-sectional view of the endoscope channel suture clip is shown;
[0058] Fig.28 It is a structural schematic diagram of the seventh embodiment of the endoscope channel suture clamp described in the present invention.
[0059] Fig.29 yes Fig.28 The schematic diagram of the exploded structure of the endoscope channel suture clip shown;
[0060] Fig.30 yes Fig.28 The cross-sectional structure diagram of the endoscope channel suture clip is shown.
[0061] in, Figures 1 to 30 The corresponding relationship between the reference numerals and component names is as follows:
[0062] Clamping core 100, shell 110, fixed shell 11, connecting shell 12, second through slot 13, shell 14, slot 141, first spacer 15, sub-slot 151, shaft hole 152, insert 153, avoidance space 16, first slide groove 111, fixing part 112, connecting pipe 113, second connecting hole 114, locking groove 115, third slide groove 116, first through slot 117, second spacer 118, clamping part 120, second slide groove 121, guide groove 1211, limit groove 1212, limit Position protrusion 1213, rotating shaft 130, control assembly 200, slider 211, control member 212, connecting ring 2121, control rod 2122, connecting piece 2123, fracture opening 2124, fracture zone 2125, snap-in piece 2126, sliding column 2127, connecting shaft 250, protective shell 300, first connecting hole 310, spring hose 320, fixing tube 330, avoidance groove 340, locking member 400, fixing ring 410, elastic arm 420, connecting frame 430, release ring 440. DETAILED DESCRIPTION
[0063] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0064] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0065] The following discussion provides multiple embodiments of the present invention. Although each embodiment represents a single combination of the invention, different embodiments of the present invention can be replaced or combined, so the present invention can also be considered to include all possible combinations of the same and / or different embodiments described. Therefore, if one embodiment includes A, B, C, and another embodiment includes a combination of B and D, then the present invention should also be considered to include embodiments containing one or more of A, B, C, D and all other possible combinations, even though the embodiment may not be explicitly described in the following text.
[0066] like Figures 1 to 20 As shown, the endoscope channel suturing clamp provided by the embodiment of the present invention includes: a housing 110, a clamping core 100, two clamping parts 120 and two control components 200.
[0067] A first slide groove 111 is symmetrically arranged on the shell 110, and the first slide groove 111 is arranged along the axial direction of the shell 110; the clamping core 100 is fixedly connected to the shell 110; the two clamping parts 120 are installed on the shell 110 through the rotating shaft 130, and can rotate relative to the shell 110, and the clamping parts 120 are provided with a second slide groove 121, and the second slide groove 121 includes a guide groove 1211 and a limit groove 1212; the two control components 200 are respectively connected to the two clamping parts 120, and the two control components 200 independently control the two clamping parts 120 to open or close relative to the clamping core 100 to clamp the target object.
[0068] The control assembly 200 includes a slider 211 and a control member 212 .
[0069] The slider 211 is arranged in the second slide groove 121 and can slide in the second slide groove 121. After the clamping part 120 and the clamping core 100 are closed, the slider 211 can be inserted into the limiting groove 1212; one end of the control member 212 is connected to the slider 211, and the other end extends out of the shell 110. A part of the control member 212 is located in the first slide groove 111 and can slide in the first slide groove 111.
[0070] The endoscope channel suture clamp provided by the present invention has two clamping parts 120 connected to the control component 200, and the control component 200 can control the two clamping parts 120 to open or close relative to the clamping core 100, so that it has the function of clamping and closing large defect wounds on both sides, which makes up for the defect that large defect wounds can only be clamped on one side by conventional hemostatic clamps, and can thus process defect wounds of large size or difficult operation parts. In addition, the control member 212 has a certain rigidity, so that the travel of the slider 211 is the same as that of the control member 212, and the operator can control the opening and closing of the clamping part 120 within a smaller range through the cooperation of the control member 212 and the slider 211, thereby achieving a more precise defect wound. Optionally, the control member 212 is made of plastic, or the control member 212 is made of metal. The first slide groove 111 guides and fixes the control member 212, ensuring the stable movement of the control member 212 in a fixed direction, avoiding the control member 212 from slipping, and thus ensuring the reliability of the product. In addition, the control member 212 drives the slider 211 to slide into the limit groove 1212, and the slider 211 is limited in the limit groove 1212, so that the clamping part 120 and the clamping core 100 are in a closed and locked state without the operator applying force, which is convenient for the operator to perform other operations; when it is necessary to release this state, the operator only needs to push the control member 212 forward as needed, so that the control member 212 drives the slider 211 to slide out of the limit groove 1212.
[0071] Embodiments according to the present invention will be described in detail below with reference to the accompanying drawings.
[0072] Example 1
[0073] like Figures 1 to 3 As shown, the endoscope channel suturing clamp provided by the embodiment of the present invention includes: a housing 110 , a clamping core 100 , two clamping parts 120 and two control components 200 .
[0074] The first slide groove 111 is arranged along the axial direction of the shell 110; the shell 110 is provided with a first through groove 117 penetrating the shell 110. The clamping core 100 is fixedly connected to the shell 110. The two clamping parts 120 are installed on the shell 110 through the rotating shaft 130 and can rotate relative to the shell 110. The two clamping parts 120 are located in the first through groove 117. The first slide groove 111 is respectively arranged on the two symmetrical groove walls of the first through groove 117. The first slide groove 111 is a through hole penetrating the shell 110. The clamping part 120 is provided with a second slide groove 121, and the second slide groove 121 includes a guide groove 1211 and a limit groove 1212. Two control components 200 are respectively connected to the two clamping parts 120, and the two control components 200 independently control the two clamping parts 120 to open or close relative to the clamping core 100 to clamp the target object.
[0075] like Figure 2 and Figure 3 As shown, the control assembly 200 includes: a slider 211 and a control member 212. The slider 211 is disposed in the second slide groove 121 and can slide in the second slide groove 121. After the clamping portion 120 and the clamping core 100 are closed, the slider 211 can be inserted into the limit groove 1212. One end of the control member 212 is connected to the slider 211, and the other end extends out of the housing 110. A portion of the control member 212 is located in the first slide groove 111 and can slide in the first slide groove 111.
[0076] In this embodiment, when clamping the defective wound, a control member 212 is pushed forward, and the control member 212 slides in the second slide groove 121, so that the clamping part 120 rotates around the rotating shaft 130, and the distance between the clamping part 120 and the clamping core 100 becomes larger, and then one side of the defective wound is placed between the clamping part 120 and the clamping core 100, and the control member 212 is pulled back, and the control member 212 slides in the second slide groove 121, so that the clamping part 120 rotates around the rotating shaft 130, and the distance between the clamping part 120 and the clamping core 100 becomes smaller, so as to clamp one side of the defective wound. Similarly, then another clamping part 120 is opened to clamp the other side of the defective wound, that is, the two clamping parts 120 can clamp a part of the defective wound separately, and finally realize the function of clamping the entire defective wound, thereby effectively solving the problem that conventional hemostatic clips can only clamp on one side, making it difficult to handle defective wounds of large size or difficult to operate.
[0077] In addition, the control member 212 has a certain rigidity, so that the travel of the slider 211 is the same as that of the control member 212. The operator can control the clamping portion 120 to open and close within a smaller range through the cooperation of the control member 212 and the slider 211, thereby achieving a more precise defect wound surface. Optionally, the control member 212 is made of plastic, or the control member 212 is made of metal.
[0078] The first slide groove 111 guides and fixes the control member 212, ensuring the stable movement of the control member 212 in a fixed direction, avoiding the control member 212 from slipping, and thus ensuring the reliability of the product. The first slide groove 111 is a first through groove 117, and the portion of the control member 212 located in the first slide groove 111 may be no less than the wall thickness of the housing 110, thereby further avoiding the control member 212 from slipping, and further ensuring the reliability of the product. Optionally, the portion of the control member 212 located in the first slide groove 111 is equal to the wall thickness of the housing 110, avoiding scratching of the mucosal tissue, thereby improving the safety of the product.
[0079] In addition, the limit groove 1212 plays a locking role. Specifically, the control member 212 drives the slider 211 to slide into the limit groove 1212, and the slider 211 is confined in the limit groove 1212, so that the clamping portion 120 and the clamping core 100 are in a closed and locked state without the operator applying force, which is convenient for the operator to perform other operations; when it is necessary to release this state, the operator only needs to push the control member 212 forward as needed, so that the control member 212 drives the slider 211 to slide out of the limit groove 1212.
[0080] In addition, the control assembly also includes two handles, and the two handles are respectively connected to the two control members.
[0081] like Figure 2 and Figure 4 As shown, in an optional embodiment of the present invention, the control member 212 includes: a connecting ring 2121, a control rod 2122 and a sliding column 2127. The connecting ring 2121 is sleeved on the slider 211. One end of the control rod 2122 is fixedly connected to the connecting ring 2121, and the other end extends out of the housing 110. The sliding column 2127 is fixed to the slider 211, and the sliding column 2127 is located in the first sliding groove 111 and can slide in the first sliding groove 111. In some embodiments of the present invention, such as Figure 4 As shown, the slide column 2127 is fixed to the slider 211 as an integrated structure.
[0082] In this embodiment, the operator pushes the control member 212 forward or pulls the control member 212 backward, the control rod 2122 drives the connecting ring 2121 to move, and the connecting ring 2121 drives the slider 211 to slide in the second slide groove 121, so that the clamping part 120 rotates relative to the housing 110, thereby realizing the opening or closing of the clamping part 120 relative to the clamping core 100 to clamp the defect wound surface. The control member 212 has a simple structure, is easy to manufacture, and can effectively control the sliding of the slider in the second slide groove 121.
[0083] In an optional embodiment of the present invention, Figure 5 As shown, the control member 212 includes: a connecting piece
[0084] 2123, a connecting ring 2121 and a control rod 2122. One end of the connecting piece 2123 is connected to the slider 211. The connecting ring 2121 is connected to the other end of the connecting piece 2123 through a connecting shaft 250, and one end of the connecting shaft 250 is located in the first slide groove 111 and can slide in the first slide groove 111. One end of the control rod 2122 is fixedly connected to the connecting ring 2121, and the other end extends out of the housing 110.
[0085] In this embodiment, the operator pushes the control rod 2122 forward or pulls the control rod 2122 backward, so that the control rod 2122 drives the connecting ring 2121 to move, the connecting ring 2121 drives the connecting piece 2123 to move, and the connecting piece 2123 drives the slider 211 to slide in the second slide groove 121, so that the clamping part 120 rotates relative to the housing 110, thereby realizing the opening or closing of the clamping part 120 relative to the clamping core 100 to clamp the defective wound surface. The control member 212 has a simple structure, is easy to manufacture, and can effectively control the sliding of the slider 211 in the second slide groove 121. In addition, the setting of the connecting piece 2123 increases the control distance, and the control member 212 composed of three parts increases the mechanical strength of each component, thereby ensuring the reliability of the product and increasing the market competitiveness of the product.
[0086] In an optional embodiment of the present invention, Figure 6 As shown, a limiting protrusion 1213 is provided at the connection between the guide groove 1211 and the limiting groove 1212 , and after the clamping portion 120 and the clamping core 100 are closed, the slider 211 can be inserted into the limiting groove 1212 .
[0087] In this embodiment, the operator pushes the control member 212 forward or pulls the control member 212 backward, and the control member 212 drives the slider 211 to slide in the guide groove 1211, so that the clamping portion 120 rotates relative to the shell 110, thereby realizing the opening or closing of the clamping portion 120 relative to the clamping core 100 to clamp the defective wound surface; after the clamping portion 120 clamps the defective wound surface, the operator continues to pull the control member 212 backward, so that the control member 212 drives the slider 211 to slide into the limiting groove 1212. Due to the limitation of the limiting protrusion 1213, the slider 211 is confined in the limiting groove 1212, so that the clamping portion 120 and the clamping core 100 are in a closed and locked state without the operator applying force, which is convenient for the operator to perform other operations; when it is necessary to release this state, the operator only needs to push the control member 212 forward as needed, so that the control member 212 drives the slider 211 to slide out of the limiting groove 1212.
[0088] In an optional embodiment of the present invention, Figure 7 As shown, there is an included angle between the guide groove 1211 and the limiting groove 1212 , and after the clamping portion 120 and the clamping core 100 are closed, the slider 211 can be inserted into the limiting groove 1212 .
[0089] In this embodiment, the operator pushes the control member 212 forward or pulls the control member 212 backward, and the control member 212 drives the slider 211 to slide in the guide groove 1211, so that the clamping portion 120 rotates relative to the shell 110, thereby realizing the opening or closing of the clamping portion 120 relative to the clamping core 100 to clamp the defective wound surface; after the clamping portion 120 clamps the defective wound surface, the operator continues to pull the control member 212 backward, so that the control member 212 drives the slider 211 to slide into the limiting groove 1212, and the slider 211 is confined in the limiting groove 1212, so that the clamping portion 120 and the clamping core 100 are in a closed and locked state without the operator applying force, which is convenient for the operator to perform other operations; when it is necessary to release this state, the operator only needs to push the control member 212 forward as needed, so that the control member 212 drives the slider 211 to slide out of the limiting groove 1212.
[0090] In an optional embodiment of the present invention, Figure 4 , Figure 5 and Figure 8 As shown, a break opening 2124 is provided on the connecting ring 2121 , and the break opening 2124 is located at an end away from the connection between the connecting ring 2121 and the control rod 2122 .
[0091] In this embodiment, after the clamping portion 120 and the clamping core 100 are closed relative to the defective wound surface, one end of the connecting ring 2121 away from the connection with the control rod 2122 rests on the slider 211 or the connecting shaft 250. When the operator pulls the control rod 2122 with a pulling force greater than the preset force, the connecting ring 2121 breaks from the fracture 2124, and the connecting ring 2121 is disconnected from the slider 211 or the connecting piece 2123, and the control rod 2122 and the connecting ring 2121 are separated from the clamping portion 120, leaving only the shell 110, the clamping portion 120 and the clamping core 100, thereby avoiding the control rod 2122 and the connecting ring 2121 from reducing the operating space and affecting the operator's suturing of the defective wound surface, that is, facilitating the operator's operation on the defective wound surface.
[0092] In an optional embodiment of the present invention, Figure 4 , Figure 5 and Fig. 9 As shown, a fracture zone 2125 is provided on the connecting ring 2121 , and the fracture zone 2125 is located at one end away from the connection between the connecting ring 2121 and the control rod 2122 . The width of the connecting ring 2121 at the fracture zone 2125 is smaller than the width of other areas of the connecting ring 2121 .
[0093] In this embodiment, after the clamping portion 120 and the clamping core 100 are closed relative to the defective wound surface, the end of the connecting ring 2121 away from the connection with the control rod 2122 abuts against the slider 211 or the connecting shaft 250, and the operator pulls the control rod 2122 with a pulling force greater than the preset force, and the connecting ring 2121 is disconnected from the fracture area 2125, and the connecting ring 2121 is disconnected from the slider 211 or the connecting piece 2123, and the control rod 2122 and the connecting ring 2121 are separated from the clamping portion 120, leaving only the shell 110, the clamping portion 120 and the clamping core 100, thereby avoiding the control rod 2122 and the connecting ring 2121 from reducing the operating space and affecting the operator's suturing of the defective wound surface, that is, facilitating the operator's operation on the defective wound surface.
[0094] In an optional embodiment of the present invention, Figure 1 and Figure 2 As shown, the endoscope channel suture clamp also includes: a protective shell 300 and a locking member 400. The protective shell 300 is detachably connected to the housing 110 through the locking member 400, and the other end of the control rod 2122 passes through the locking member 400 and extends out of the protective shell 300; along the movement direction of the control member 212, the connecting ring 2121 can interfere with the locking member 400.
[0095] In this embodiment, after the clamping portion 120 and the clamping core 100 are closed relative to the defective wound surface, the protective shell 300 can be separated from the clamping assembly outer shell 110, leaving only the outer shell 110, the clamping portion 120 and the clamping core 100, thereby avoiding the protective shell 300 from reducing the operating space and affecting the operator's suturing of the defective wound surface, thereby facilitating the operator's operation on the defective wound surface.
[0096] In an optional embodiment of the present invention, Fig.10 As shown, the locking member 400 includes: a fixing ring 410 and a plurality of elastic arms 420. The diameter of the fixing ring 410 is smaller than the diameter of the connecting ring 2121. One end of the plurality of elastic arms 420 is fixedly connected to the fixing ring 410 and is arranged along the circumference of the fixing ring 410, and the other end of the elastic arm 420 is bent toward one side of the elastic arm 420 to form a pin. A plurality of first connecting holes 310 are arranged on the protective shell 300, and a plurality of second connecting holes 114 corresponding to the first connecting holes 310 are arranged on the outer shell 110. The locking member 400 is arranged in the protective shell 300, and the pins are sequentially inserted into the first connecting holes 310 and the second connecting holes 114 so that the protective shell 300 is fixedly connected to the outer shell 110, and the other end of the control member 212 passes through the fixing ring 410 and extends out of the protective shell 300.
[0097] In this embodiment, after the clamping portion 120 and the clamping core 100 are clamped and closed relative to the defect wound surface, the operator pulls the control rod 2122 with a pulling force greater than the preset force, and the end of the connecting ring 2121 away from the connection with the control rod 2122 is pressed against the slider 211 or the connecting shaft 250, and the connecting ring 2121 is disconnected from the fracture area 2125 or the fracture opening 2124, and the connecting ring 2121 is disconnected from the slider 211 or the connecting piece 2123, and the control rod 2122 and the connecting ring 2121 are separated from the clamping portion 120. Since the diameter of the fixing ring 410 is smaller than that of the connecting ring 2121, the connecting ring 2121 drives the fixing ring 410 to move, and the fixing ring 410 drives the elastic arm 420 to separate from the first connecting hole 310 and the second connecting hole 114, so that the protective shell 300 and the control member 212 are separated from the outer shell 110, and only the clamping part 120, the clamping core 100 and the outer shell 110 are left, thereby avoiding the protective shell 300 from reducing the operating space and affecting the operator's suturing of the defective wound surface, that is, facilitating the operator's operation on the defective wound surface.
[0098] In an optional embodiment of the present invention, Fig.11 As shown, the locking member 400 includes: a connecting frame 430, a plurality of elastic arms 420 and two release rings 440. One end of the plurality of elastic arms 420 is fixedly connected to the connecting frame 430, and the other end of the elastic arm 420 is bent toward one side of the elastic arm 420 to form a pin. The two release rings 440 are respectively sleeved on the two elastic arms 420, and the diameter of the release ring 440 is smaller than the diameter of the connecting ring 2121. A plurality of first connecting holes 310 are provided on the protective shell 300, and a plurality of second connecting holes 114 corresponding to the first connecting holes 310 are provided on the outer shell 110. The locking member 400 is arranged in the protective shell 300, and the pins are sequentially inserted into the first connecting holes 310 and the second connecting holes 114 so that the protective shell 300 is fixedly connected to the outer shell 110, and the other end of the control member 212 extends out of the protective shell 300 through the release ring 440.
[0099] In this embodiment, after the clamping portion 120 and the clamping core 100 are clamped and closed relative to the defect wound surface, the operator pulls the control rod 2122 with a pulling force greater than the preset force, and the end of the connecting ring 2121 away from the connection with the control rod 2122 is pressed against the slider 211 or the connecting shaft 250, and the connecting ring 2121 is disconnected from the fracture area 2125 or the fracture opening 2124, and the connecting ring 2121 is disconnected from the slider 211 or the connecting piece 2123, and the control rod 2122 and the connecting ring 2121 are separated from the clamping portion 120. The diameter of the release ring 440 is smaller than that of the connecting ring 2121. The connecting ring 2121 drives the release ring 440 to move. The release ring 440 drives the elastic arm 420 and the connecting frame 430 to separate from the first connecting hole 310 and the second connecting hole 114, so that the protective shell 300 and the control part 212 are separated from the outer shell 110, and only the clamping part 120, the clamping core 100 and the outer shell 110 are left, thereby avoiding the existence of the protective shell 300 to reduce the operating space and affect the operator's suturing of the defective wound, that is, facilitating the operator's operation on the defective wound.
[0100] In an optional embodiment of the present invention, Fig.12 As shown, the protective shell 300 includes a spring hose 320 and a fixing tube 330. The spring hose 320 is connected to the fixing tube 330, and the fixing tube 330 is provided with a first connecting hole 310. Due to the use environment of the product, the spring hose 320 can be appropriately elastically deformed, and at the same time, other components are prevented from being directly exposed to the use environment, causing damage and corrosion to the product components, thereby increasing the service life of the product and improving the market competitiveness of the product.
[0101] Specifically describe the working process of the endoscope channel suture clip:
[0102] When the operator pushes the control member forward, the control member drives the slider to slide in the guide groove, so that the clamping part rotates relative to the shell and the clamping part opens relative to the clamping core. Then, the control member is pulled backward to close the clamping part and the clamping core to clamp one side of the defective wound surface. At this time, the operator continues to pull the control member backward to make the control member drive the slider to slide into the limiting groove. The slider is confined in the limiting groove, so that the clamping part and the clamping core are in a closed and locked state without the operator applying force, which is convenient for the operator to perform other operations. Similarly, the operator controls another handle to clamp the other side of the defective wound surface. When it is necessary to release this state, the operator only needs to push the control member forward as needed, and the control member drives the slider to slide out of the limiting groove to unlock the locked state. When the clamping part and the clamping core are in a closed and locked state, the operator continues to pull the control part backward to break the front end of the connecting ring, and the connecting ring drives the release ring (or fixed ring) to move. The release ring (or fixed ring) drives the elastic arm and the connecting frame (or elastic arm) to separate from the first connecting hole and the second connecting hole, so that the protective shell and the control part are separated from the outer shell, leaving only the clamping part, the clamping core and the outer shell.
[0103] Example 2
[0104] like Figure 12 to Figure 14 As shown, embodiment 2 of the present invention relates to an endoscope channel suture clip, and embodiment 2 is substantially the same as embodiment 1, and the main difference is that the housing 110 includes a fixing portion 112 and a connecting tube 113. One end of the fixing portion 112 is connected to the clamping core 100, and the two clamping portions 120 are respectively located on both sides of the fixing portion 112. The fixing portion 112 is provided with a third slide groove 116, and one end of the slider 211 is located in the third slide groove 116. The connecting tube 113 is connected to the other end of the fixing portion 112. The first slide groove 111 is provided on the inner wall of the connecting tube 113, and a part of the control member 212 is located in the first slide groove 111 and can slide in the first slide groove 111.
[0105] In this embodiment, the third slide groove 116 guides and fixes the slider 211, ensuring the stable movement of the slider 211 along a fixed direction, avoiding the slider 211 from slipping, and thus ensuring the reliability of the product. The first slide groove 111 guides and fixes the control member 212, ensuring the stable movement of the control member 212 along a fixed direction, avoiding the control member 212 from slipping, and thus ensuring the reliability of the product. In addition, the setting of the fixing portion 112 can extend the length of the housing 110, so that the suture clamp can be operated at a deep place.
[0106] Example 3
[0107] like Figure 15 to Figure 17b As shown, embodiment 3 of the present invention relates to an endoscope channel suture clip, and embodiment 3 is substantially the same as embodiment 1, and the main difference is that the housing 110 includes a fixing portion 112, a connecting tube 113, and a second septum 118. One end of the fixing portion 112 is connected to the clamping core 100, and two clamping portions 120 are respectively located on both sides of the fixing portion 112. A third slide groove 116 is provided on the fixing portion 112, and one end of the slider 211 is located in the third slide groove 116. The connecting tube 113 is connected to the other end of the fixing portion 112. The second septum 118 is fixed in the connecting tube 113, and the second septum 118 divides the connecting tube 113 into two symmetrical channels. The first slide grooves 111 are respectively provided on both sides of the second septum 118, and two control members 212 are respectively located in the two channels, and a part of the control member 212 is located in the first slide groove 111 and can slide in the first slide groove 111.
[0108] In this embodiment, the connecting pipe 113 is divided into two symmetrical channels by the second spacer 118, and the control members 212 are respectively located in different channels, which avoids interference between the two control members 212 during operation, that is, reduces the probability of problems with the control members 212, thereby ensuring the reliability of the product. The first slide groove 111 is arranged on the second spacer 118, which avoids the situation that the first slide groove 111 is arranged on the shell 110, resulting in low mechanical strength of the shell 110, that is, it can ensure that the shell 110 has mechanical strength. The first slide groove 111 guides and fixes the control member 212, ensures the stable movement of the control member 212 along a fixed direction, and avoids the situation that the control member 212 slips off, thereby ensuring the reliability of the product. The third slide groove 116 guides and fixes the slider 211, and the third slide groove 116 guides and fixes the slider 211, ensures the stable movement of the slider 211 along a fixed direction, and avoids the situation that the slider 211 slips off, thereby ensuring the reliability of the product.
[0109] Example 4
[0110] like Figures 18 to 20 As shown, embodiment 4 of the present invention relates to an endoscope channel suture clip, and embodiment 4 is substantially the same as embodiment 1, and the main difference is that the housing 110 includes a fixing portion 112 and a connecting tube 113. One end of the fixing portion 112 is connected to the clamping core 100, and the two clamping portions 120 are respectively located on both sides of the fixing portion 112. The fixing portion 112 is provided with a third slide groove 116, and one end of the slider 211 is located in the third slide groove 116. The connecting tube 113 is connected to the other end of the fixing portion 112. The first slide groove 111 is a through hole that penetrates the connecting tube 113, and a part of the control member 212 is located in the first slide groove 111 and can slide in the first slide groove 111.
[0111] In this embodiment, the third slide groove 116 guides and fixes the slider 211, ensuring the stable movement of the slider 211 in a fixed direction, avoiding the slider 211 from slipping, and thus ensuring the reliability of the product. The first slide groove 111 is a first through groove 117, and the portion of the control member 212 located in the first slide groove 111 may be no less than the wall thickness of the housing 110, thereby further avoiding the control member 212 from slipping, and further ensuring the reliability of the product. Optionally, the portion of the control member 212 located in the first slide groove 111 is equal to the wall thickness of the housing 110, avoiding scratching of the mucosal tissue, thereby improving the safety of the product.
[0112] Example 5
[0113] like Figure 21 to Figure 23As shown, embodiment 5 of the present invention relates to an endoscope channel suture clip, and embodiment 5 is substantially the same as embodiment 1, and the main difference is that the housing 110 includes a fixed shell 11 and a connecting shell 12. A second through groove 13 is provided on one end of the fixed shell 11. The connecting shell 12 is provided at one end of the fixed shell 11, and the connecting shell 12 seals the opening of the second through groove 13 and forms a first slide groove with the second through groove 13. In this embodiment, the fixed tube 330 and the connecting shell 12 are the same component.
[0114] During the assembly of the endoscope channel suture clamp, the portion of the control member 212 located in the first slide groove 111 is first slid into the second through groove 13 from the opening of the second through groove 13, and then the connecting shell 12 is fixedly connected to the fixed shell 11. The connecting shell 12 seals the opening of the second through groove 13 and forms the first slide groove 111 with the second through groove 13 to lock the portion of the control member 212 located in the first slide groove 111 in the first slide groove 111. This assembly method is simple and quick, and can improve the assembly efficiency of the product.
[0115] like Fig.24 As shown, in an optional embodiment of the present invention, the side wall of the housing 110 at the first sliding groove 111 is recessed into the housing 110 to form an escape space 16 .
[0116] In this embodiment, the control member 212 is located in the first slide groove 111, and the protruding fixed shell 11 part is located in the avoidance space 16, which avoids scratching the mucosal tissue, thereby improving the safety of product use.
[0117] Example 6
[0118] like Figure 25 to Figure 27 As shown, embodiment 6 of the present invention relates to an endoscope channel suturing clip, and embodiment 6 is substantially the same as embodiment 1, with the main difference that: the housing 110 further includes: a shell 14 and a first septum 15. The shell 14 is provided with a first slide groove 111. The first septum 15 is fixed in the shell 14, and the first septum 15 divides the shell 14 into two symmetrical channels, and the two control members 212 are respectively located in the two channels.
[0119] In this embodiment, the shell 14 is divided into two symmetrical channels by the first partition 15, and the control components 212 are respectively located in different channels, thereby avoiding interference between the two control components 212 during operation, that is, reducing the probability of problems with the control components 212, thereby ensuring the reliability of product use.
[0120] like Fig. 27 As shown, in one embodiment of the present invention, a shaft hole 152 is provided at one end of the first spacer 15, and the shaft is located in the shaft hole 152. An inserting piece 153 is symmetrically provided at the other end of the first spacer 15, and a slot 141 matching with the inserting piece 153 is provided on the housing 14.
[0121] In this embodiment, the first spacer 15 is plug-connected to the shell 14. This connection structure is convenient for assembly, thereby improving the assembly efficiency of the product, further improving the production efficiency of the product, and reducing the production cost of the product.
[0122] Example 7
[0123] like Figures 28 to 30 As shown, embodiment 7 of the present invention relates to an endoscope channel suture clamp, and embodiment 7 is substantially the same as embodiment 6, with the main difference being that sub-grooves 151 are respectively provided on both sides of the first spacer 15 , and the sub-grooves 151 are provided corresponding to the first slide groove 111 .
[0124] In this embodiment, the first slide groove 111 and the sub-groove 151 are used in conjunction to play a guiding and fixing role, thereby limiting the sliding direction of the control member 212, ensuring the stable movement of the control member 212 along a fixed direction, and avoiding the control member 212 from slipping, thereby ensuring the reliability of the product.
[0125] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. There is no need to list them exhaustively here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.
[0126] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. In the present invention, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "connection" can be connected by wires or by signals. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0127] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the concept or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but conforms to the widest scope consistent with the principles and novel features disclosed herein.
[0128] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An endoscope channel suture clip, characterized in that: include: A housing, wherein first slide grooves are symmetrically arranged on the housing, and the first slide grooves are arranged along the axial direction of the housing; A clamping core, wherein the clamping core is fixedly connected to the shell; Two clamping parts, the two clamping parts are mounted on the housing through a rotating shaft and can rotate relative to the housing, the clamping parts are provided with a second slide groove, and the second slide groove includes a guide groove and a limit groove; and Two control components, the two control components are respectively connected to the two clamping parts, and the two control components independently control the two clamping parts to open or close relative to the clamping core to clamp the target object; Wherein, the control assembly comprises: a slider, the slider is arranged in the second slide groove and can slide in the second slide groove; after the clamping part and the clamping core are closed, the slider can be stuck in the limiting groove; and A control member, one end of which is connected to the slider and the other end of which extends out of the housing, a part of which is located in the first slide groove and can slide in the first slide groove; The shell is provided with a first through slot penetrating the shell, the two clamping parts are located in the first through slot, and the first sliding slots are respectively provided on two symmetrical slot walls of the first through slot; The first slide groove is a through hole penetrating the housing; The housing comprises: a fixed shell, one end of which is provided with a second through slot; and A connecting shell, wherein the connecting shell is arranged at one end of the fixed shell, the connecting shell seals the opening of the second through groove, and forms the first sliding groove with the second through groove; The control member comprises: a connecting ring, the connecting ring is sleeved on the sliding block; a control rod, one end of which is fixedly connected to the connecting ring and the other end of which extends out of the housing; and A sliding post is fixed on the sliding block, and the sliding post is located in the first sliding groove and can slide in the first sliding groove.
2. The endoscope channel suturing clip according to claim 1, characterized in that: The side wall of the shell at the first sliding groove is recessed into the shell to form an escape space.
3. The endoscope channel suturing clip according to claim 1, characterized in that: The connecting ring is provided with a fracture opening, and the fracture opening is located at an end away from the connection between the connecting ring and the control rod.
4. The endoscope channel suturing clip according to claim 1, characterized in that: The connecting ring is provided with a breaking zone, which is located at an end away from the connection between the connecting ring and the control rod, and the width of the connecting ring at the breaking zone is smaller than the width of other areas of the connecting ring.
5. The endoscope channel suturing clip according to claim 1, characterized in that: A limiting protrusion is arranged at the connection between the guide groove and the limiting groove.
6. The endoscope channel suturing clip according to claim 1, characterized in that: An included angle is formed between the guide groove and the limiting groove.
7. The endoscope channel suturing clip according to claim 1, characterized in that: It also includes: a protective shell and a locking piece, wherein the protective shell is detachably connected to the outer shell through the locking piece, and the other end of the control rod passes through the locking piece and extends out of the protective shell; along the movement direction of the control piece, the connecting ring can interfere with the locking piece.
8. The endoscope channel suturing clip according to claim 7, characterized in that: The locking member comprises: a fixing ring, the diameter of the fixing ring being smaller than the diameter of the connecting ring; and A plurality of elastic arms, one end of each of the elastic arms is fixedly connected to the fixing ring and arranged along the circumference of the fixing ring, and the other end of each of the elastic arms is bent toward one side of the elastic arm to form a pin; The protective shell is provided with a plurality of first connection holes, and the outer shell is provided with a plurality of second connection holes corresponding to the first connection holes; The locking member is arranged in the protective shell, and the pins are inserted into the first connecting hole and the second connecting hole in sequence so that the protective shell is fixedly connected to the outer shell, and the other end of the control member passes through the fixing ring and extends out of the protective shell.
9. The endoscope channel suturing clip according to claim 7, characterized in that: The locking member comprises: a connecting frame; A plurality of elastic arms, one end of each of the elastic arms is fixedly connected to the connecting frame, and the other end of each of the elastic arms is bent toward one side of the elastic arm to form a pin; and Two release rings, the two release rings are respectively sleeved on the two elastic arms, and the diameter of the release ring is smaller than the diameter of the connecting ring; The protective shell is provided with a plurality of first connection holes, and the outer shell is provided with a plurality of second connection holes corresponding to the first connection holes; The locking member is arranged in the protective shell, and the pins are inserted into the first connecting hole and the second connecting hole in sequence so that the protective shell is fixedly connected to the outer shell, and the other end of the control member passes through the release ring and extends out of the protective shell.
10. The endoscope channel suturing clip according to claim 8, characterized in that: The protective shell includes a spring hose and a fixing tube, the spring hose is connected to the fixing tube, and the fixing tube is provided with the first connecting hole.
Citation Information
Patent Citations
Double-chute self-locking hemostatic clip
CN107115130A
Hemostatic clamp
CN107684448A
Connection two-sided clamp of digestive endoscopic duct for hemostasis and suturing and operation method
CN109350171A
Endoscope pore canal suture clamp
CN211066839U