One-side opening and closing hemostatic clip and use method

Abstract

The invention discloses a single-side opening and closing hemostatic clip and a using method. The hemostatic clip comprises a fixed arm, a movable arm and a driving device, wherein the fixed arm and the movable arm form a clip head, and the driving device is used for driving the movable arm to rotate, open and close relative to the fixed arm; the driving device comprises a middle baffle fixedly installed in the fixed arm and a pull rod mechanism used for pulling the movable arm to rotate relative to the middle baffle, the movable arm comprises a rotating handle, the rotating handle is rotationally connected with the middle baffle, and a guide groove used for being matched with the pull rod mechanism is formed in the rotating handle. A through groove is formed in the position, corresponding to the rotating area of the rotating handle, of the fixed arm; the safety mechanism for limiting the moving distance of the pull rod mechanism is arranged on the middle baffle, the situation that the clamping head is released due to misoperation can be avoided, the operation safety is improved, the hemostatic clip can be used as hemostatic forceps when the safety mechanism is not opened, multiple purposes are achieved, and exchange use of instruments in the operation process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hemostatic clips, and in particular to a unilateral opening and closing hemostatic clip and a use method thereof. Background Art

[0002] With the development of minimally invasive technology at home and abroad, some gastrointestinal diseases can be treated minimally invasively under endoscopy. During ESD endoscopic surgery, gastrointestinal mucosal defect suture, gastrointestinal bleeding and perforation are the most common problems. Different hemostatic clips are selected according to the size of the wound. Harmony clips are generally used for small wounds, and OTSC anastomosis clips are used for larger wounds or perforations. And dragging the two sides of the wound requires foreign body forceps with different openings. In order to reduce the exchange of instruments during surgery and the occurrence of foreign body forceps being accidentally clamped during OTSC surgery, a hemostatic clip with a safety device is clinically needed, which has the functions of both forceps and clamps to improve surgical efficiency. Summary of the invention

[0003] Technical purpose: In view of the shortcomings of existing hemostatic clamps, the present invention discloses a single-sided opening and closing hemostatic clamp that can control the release of the clamp according to usage requirements and a method of use.

[0004] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution: A single-sided opening and closing hemostatic clamp comprises a fixed arm and a movable arm constituting a clamp head, and a driving device for driving the movable arm to rotate and open relative to the fixed arm, the driving device comprising an intermediate baffle fixedly installed in the fixed arm, and a pull rod mechanism for pulling the movable arm to rotate relative to the intermediate baffle, the movable arm comprising a rotating handle, the rotating handle being rotatably connected to the intermediate baffle, a guide groove for cooperating with the pull rod mechanism being provided on the rotating handle, the pull rod mechanism exerts a force on the movable arm through the guide groove to drive the movable arm to rotate, a through groove is provided on the fixed arm at a position corresponding to the rotating area of ​​the rotating handle; a limit groove is provided on the intermediate baffle for limiting the driving end of the pull rod mechanism that cooperates with the guide groove.

[0005] Preferably, the pull rod mechanism of the present invention includes a pull rod body, a pull rope, an operating handle and a slider, the slider is slidably arranged on the operating handle, the pull rope is passed through the operating handle, one end of the pull rope is connected to the slider, and the other end is connected to the end of the pull rod body; the driving end of the pull rod body is connected with the limit groove and the guide groove through the passed movable shaft, and a first opening groove is provided at the end of the pull rod body for disengaging from the movable shaft after the pull rope is pulled into place; the fixed arm is detachably connected to the end of the operating handle, and an elastic limiting mechanism is provided at the connection point for cooperating with the pull rod body to release the chuck as a whole after the movable arm is rotated into place; a safety mechanism for limiting the pulling position of the pull rod body and preventing the release of the chuck is provided on the intermediate baffle.

[0006] Preferably, the end of the operating handle of the present invention is connected to the fixed arm through a connecting tube, the end of the fixed arm is sleeved on the outside of the end of the connecting tube, the elastic limiting mechanism includes a V-shaped hook, the hook end of the V-shaped hook is passed through the connecting tube and the fixed arm to limit the connecting tube and the fixed arm, and a boss is provided on the pull rod body for cooperating with the V-shaped hook to apply pulling force to the V-shaped hook.

[0007] Preferably, the V-shaped hook of the present invention includes an elastic connecting section with a hook provided at the end and inclined outward to form a trumpet-shaped structure, and a straight rod section parallel to the pulling direction of the pull rod mechanism. An arc structure is used for transition between the ends of the straight rod sections, and the arc structure cooperates with the boss on the pull rod body to apply pulling force to the V-shaped hook as a whole.

[0008] Preferably, the connecting tube and the fixed arm of the present invention are respectively provided with a first through hole and a second through hole cooperating with the V-shaped hook, the diameter of the second through hole is larger than the first through hole, and the first through hole adopts a flaring structure with a diameter gradually increasing from the inside to the outside.

[0009] Preferably, the safety mechanism of the present invention includes a limit pull ring passed through the middle baffle, the limit pull ring is located on the moving path when the pull rod body is pulled, and a step is provided on the pull rod body for cooperating with the limit pull ring to limit the axial position of the pull rod body; the limit pull ring is connected to the safety pull rope passed through the operating handle, and the middle baffle is provided with a second opening groove at the cooperation position with the limit pull ring for disengaging from the limit pull ring when the limit pull ring is pulled by the safety pull rope.

[0010] Preferably, the pull rod body of the present invention is located on one side of the intermediate baffle plate surface, and a pull rod baffle is provided on the pull rod body to cooperate with the pull rod body to limit the radial displacement between the pull rod body and the intermediate baffle. The pull rod baffle is located on the side of the intermediate baffle away from the pull rod body, and the pull rod baffle and the pull rod body are connected by a connecting shaft. A second limiting groove cooperating with the connecting shaft is provided on the intermediate baffle, and a third opening groove is provided on one side of the second limiting groove along the moving direction of the pull rod body for disengaging from the connecting shaft when the chuck is released.

[0011] The present invention discloses a method for using the single-sided opening and closing hemostatic clamp according to the above-mentioned method, wherein a force is applied to a rotating handle on a movable arm through a pull rod mechanism, and a driving end of the pull rod mechanism moves along a limiting groove, and the matching position of the driving end and a guide groove on the rotating handle changes, so that the rotating handle drives the movable arm to rotate as a whole relative to the fixed arm, thereby realizing the opening and closing of the chuck, and a safety mechanism limits the action stroke of the pull rod mechanism, and controls whether the chuck is released through the safety mechanism.

[0012] Preferably, when the chuck is released, the present invention opens the safety mechanism and cancels the limit on the pull rod body, so that the pull rod body can continue to be pulled by the pull rope. During the movement of the pull rod body, a pulling force is applied to the V-shaped hook of the elastic limiting mechanism, so that the hook end of the V-shaped hook is separated from the fixed arm, and at the same time, the movable shaft is disengaged from the first opening groove and the pull rod body, completing the release of the chuck.

[0013] Preferably, when the safety mechanism of the present invention limits the pull rod mechanism, the limit pull ring of the safety mechanism blocks the movement of the pull rod body, and the pull rod baffle on the pull rod body limits the radial movement of the pull rod body along the contour of the limit pull ring, thereby maintaining the limit pull ring on the pull rod body.

[0014] Beneficial effects: The one-sided opening and closing hemostatic clip and the use method disclosed in the present invention have the following beneficial effects: 1. The present invention limits the moving trajectory of the pull rod mechanism through the middle baffle. Compared with the method of directly pulling by wire rope, the present invention can achieve accurate control of the rotation of the movable arm by controlling the moving trajectory of the pull rod mechanism, thereby improving the operation accuracy.

[0015] 2. The present invention sets a safety mechanism on the middle baffle to limit the moving distance of the pull rod mechanism, which can avoid the release of the chuck caused by misoperation, thereby increasing the safety of operation. When the safety mechanism is not opened, the hemostatic clip can be used as a hemostatic forceps, realizing multiple uses of one instrument and reducing the exchange of instruments during surgery.

[0016] 3. The chuck of the present invention is connected to the connecting pipe of the operating handle through a V-shaped hook, and the V-shaped hook can be moved synchronously under the action of the pull rod body to realize the release of the chuck, thereby reducing the complexity of the release structure and facilitating operation.

[0017] 4. The V-shaped hook of the present invention is provided with a straight rod section, so as to increase the force arm of the tension on the elastic connecting section, cooperate with the variable diameter structure of the first through hole to guide the movement of the hook, and reduce the force required for the V-shaped hook to be separated from the connecting pipe and the fixed arm.

[0018] 5. The safety mechanism of the present invention limits the position of the pull rod body by a limit pull ring, and a pull rod baffle is arranged on the pull rod body. The pull rod baffle can limit the radial movement of the pull rod body, thereby preventing the pull rod body from moving along the outer contour of the limit pull ring under the pulling force of the pull rope and leaving the range of the limit pull ring, causing the chuck to be released by mistake, thereby improving the reliability of the safety mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of the hemostatic clip of the present invention; Figure 2 This is a structural diagram of the hemostatic clip of the present invention in an open state; Figure 3 This is a structural diagram of the hemostatic clip of the present invention in a closed state; Figure 4 This is a structural diagram of the connection between the driving device and the movable arm of the present invention; Figure 5 This is an exploded view of the hemostatic clip chuck structure of the present invention; Among them, 1-fixed arm, 2-movable arm, 3-middle baffle, 4-rotating handle, 5-guide groove, 6-limiting groove, 7-pull rod body, 8-pull rope, 9-operating handle, 10-slider, 11-movable shaft, 12-first opening groove, 13-connecting pipe, 14-V-shaped hook, 15-elastic connecting section, 16-straight rod section, 17-connecting sleeve, 18-first through hole, 19-second through hole, 20-limiting pull ring, 21-step, 22-safety pull rope, 23-second opening groove, 24-pull rod baffle, 25-connecting shaft, 26-second limiting groove, 27-third opening groove. DETAILED DESCRIPTION

[0021] Reference will now be made in detail to embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by explaining the apparatus, composition and materials of the present disclosure, rather than limiting. On the contrary, the following description provides a convenient illustration of an exemplary embodiment for implementing the present disclosure. In fact, it will be clear to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, a feature shown or described as a part of an embodiment can be used in conjunction with another embodiment to produce yet another embodiment. It is expected that the present disclosure covers such modifications and variations within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present disclosure are disclosed in or clear from the following detailed description. It will be understood by those of ordinary skill in the art that this discussion is only a description of exemplary embodiments and is not intended to limit the wider aspects of the present disclosure.

[0022] like Figure 1-Figure 5As shown, the present invention discloses a single-sided opening and closing hemostatic clamp, comprising a fixed arm 1 and a movable arm 2 constituting a clamp head, and a driving device for driving the movable arm 2 to rotate and open relative to the fixed arm 1, the driving device comprising an intermediate baffle 3 fixedly installed in the fixed arm 1 and a pull rod mechanism for pulling the movable arm 2 to rotate relative to the intermediate baffle 3, the movable arm 2 comprises a rotating handle 4, the rotating handle 4 is rotatably connected to the intermediate baffle 3, a guide groove 5 for cooperating with the pull rod mechanism is arranged on the rotating handle 4, the pull rod mechanism applies a force to the movable arm 2 through the guide groove 5 to drive the movable arm 2 to rotate, a through groove is arranged on the fixed arm 1 at a position corresponding to the rotating area of ​​the rotating handle 4; a limiting groove 6 for limiting the driving end of the pull rod mechanism cooperating with the guide groove 5 is arranged on the intermediate baffle 3.

[0023] When the pull rod mechanism moves, the moving trajectory of the driving end of the pull rod mechanism is limited by the limit groove 6, so as to ensure the stability of the opening and closing operation of the chuck. The pull rod mechanism of the present invention includes a pull rod body 7, a pull rope 8, an operating handle 9 and a slider 10. The slider 10 is slidably set on the operating handle 9. The pull rope 8 is passed through the operating handle 9, one end of which is connected to the slider 10, and the other end is connected to the end of the pull rod body 7. In order to facilitate the assembly of the pull rope, a steel wire rope is used, which is connected to the pull rod body 7 through a connecting sleeve 17. The rear end of the pull rod body 7 is embedded in the connecting sleeve 17 to achieve smooth transmission of pulling force; the driving end of the pull rod body 7 is connected with the limit groove 6 and the guide groove 5 through the inserted movable shaft 11, and a shaft is provided at the end of the pull rod body 7 for connecting with the movable shaft 11 after the pull rope 8 is pulled into place. The first opening slot 12 for disengagement; the fixed arm 1 is detachably connected to the end of the operating handle 8, and an elastic limiting mechanism is provided at the connection point for cooperating with the pull rod body 7 to release the chuck as a whole after the movable arm 2 is rotated into place; the intermediate baffle 3 is provided with a safety mechanism for limiting the pulling position of the pull rod body 7 and preventing the chuck from being released; the safety mechanism can prevent the chuck from being released due to misoperation, and the chuck can be released by actively opening the safety mechanism. When the safety mechanism is not opened, the hemostatic clamp can be used as a hemostatic forceps and can provide a larger clamping force, realizing multiple uses of one device without the need for frequent replacement of instruments; when the chuck needs to be released, the safety mechanism is opened, and the elastic limiting mechanism is driven by the pull rod body 7 to move, so that the fixed arm 1 of the chuck is disengaged from the operating handle 9.

[0024] Specifically, the end of the operating handle 9 of the present invention is connected to the fixed arm 1 through a connecting tube 13, and the end of the fixed arm 1 is sleeved on the outer side of the end of the connecting tube 13. The elastic limiting mechanism includes a V-shaped hook 14, and the hook end of the V-shaped hook 14 is passed through the connecting tube 14 and the fixed arm 1 to limit the connecting tube 14 and the fixed arm 1. A boss for cooperating with the V-shaped hook 14 to apply tension to the V-shaped hook is provided on the pull rod body 7; the safety mechanism includes a limiting pull ring 20 passed through the intermediate baffle 3, and the limiting pull ring 20 is located on the moving path when the pull rod body 7 is pulled, and a step 21 is provided on the pull rod body 7 for cooperating with the limiting pull ring 20 to limit the axial position of the pull rod body 7; the limiting pull ring 20 is connected to a safety pull rope 22 passed through the operating handle 9, and the intermediate baffle 3 is provided with a second opening groove 23 at the position cooperating with the limiting pull ring 20 for disengaging from the limiting pull ring 20 when the limiting pull ring 20 is pulled by the safety pull rope 22.

[0025] The conventional V-shaped hook structure requires a large pulling force to disengage, thereby increasing the difficulty of operation and easily affecting the release operation of the hemostatic clip. For this reason, the present invention improves the structure of the V-shaped hook, such as Figure 5 As shown, the V-shaped hook 14 includes an elastic connecting section 15 with a hook at the end and inclined outward to form a trumpet-shaped structure, and a straight rod section 16 parallel to the pulling direction of the pull rod mechanism. An arc structure is used for transition between the ends of the straight rod section 16, and the V-shaped hook 14 as a whole is applied with a pulling force through the arc structure and the boss on the pull rod body 7; the straight rod end 16 can increase the force arm generated by the pulling force, so that the elastic connecting section 15 can be driven to shrink inward without a large pulling force, so as to achieve the separation between the fixed arm and the connecting tube; preferably, the connecting tube 13 and the fixed arm 1 are respectively provided with a first through hole 18 and a second through hole 19 corresponding to the V-shaped hook, the diameter of the second through hole 19 is larger than that of the first through hole 18, and the first through hole 18 adopts a flaring structure with a diameter gradually increasing from the inside to the outside; the setting of the first through hole 18 and the second through hole 19 makes the hook only play the role of a positioning pin, reducing the force between the hook and the connecting tube and the fixed arm, and at the same time, the first through hole 18 can guide the hook, further reducing the force required for the chuck to be separated and released.

[0026] The present invention uses a limit pull ring 20 to limit the pull rod body 7. When the pulling force is large, the pull rod body 7 will move along the arc profile outside the limit pull ring 20, so that the limit pull ring 20 cannot play a good limiting effect in this case. For this reason, the pull rod body 7 of the present invention is located on one side of the plate surface of the middle baffle 3, and a pull rod baffle 24 is provided on the pull rod body 7 to cooperate with the pull rod body 7 to limit the radial displacement between the pull rod body 7 and the middle baffle 3. The pull rod baffle 24 is located on the side of the middle baffle 3 away from the pull rod body 7, and the end of the pull rod baffle 24 close to the middle baffle 3 is connected to the pull rod body 7 through a connecting shaft 25 provided therethrough. The middle baffle plate 3 is connected to the pull rod body 7, and the other end is fixedly connected to the pull rod body 7, and a boss for cooperating with the V-shaped hook is formed at the connection; a second limiting groove 26 cooperating with the connecting shaft 25 is set on the middle baffle plate 3, and along the moving direction of the pull rod body 7, a third opening groove 27 for disengaging from the connecting shaft 25 when the chuck is released is set on one side of the second limiting groove 26; the pull rod baffle plate 24 and the pull rod body 7 are arranged on both sides of the plate surface of the middle baffle plate 3, and the middle baffle plate 3 is a fixed component, so the radial position of the pull rod body 7 can be limited, thereby enhancing the reliability of the structure, and the moving trajectory of the pull rod body 7 can be accurately guided and limited by cooperating with the limiting groove 6.

[0027] The present invention also provides a method for using the single-sided opening and closing hemostatic clamp based on the above-mentioned one-sided opening and closing hemostatic clamp. When the hemostatic clamp is needed for hemostatic clamping, the operator pulls the drawstring 8 through the slider 10. The slider 10 adopts a cylindrical structure with a concave middle portion for the convenience of operating force, so that the operator can clamp the slider with his fingers to apply tension. The drawstring 8 pulls the pull rod body 7 to move through the connecting sleeve 17, and the pull rod baffle 24 moves synchronously. The limit groove 6 and the second limit groove 26 guide the movement of the movable shaft 11 and the connecting shaft 25 respectively, and the movable shaft 11 drives the rotation and the rotation of the chuck 4 to realize the closing of the chuck. After moving into place, the limit pull ring 20 is used to The pull rod body 7 is limited, at this time, the hemostatic clamp can be used as a hemostatic forceps, and there is no need to worry about the accidental release of the chuck; when the chuck needs to be released, pull the safety pull rope 22, and the limiting pull ring 20 will be separated from the middle baffle 3 through the second opening groove 23, canceling the limitation of the pull rod body 7, and then continue to pull the pull rope 8, so that the movable shaft will be separated from the pull rod body 7 through the first opening groove 12, and the pull rod baffle 24 and the connecting shaft 25 will be separated from the middle baffle 3 through the third opening groove 27. At the same time, under the action of the pull rod body 7, the end of the V-shaped hook 14 shrinks inward, so that the fixed arm 1 can be separated from the connecting tube 3, thereby releasing the chuck.

Claims

1. A unilateral opening and closing hemostatic clip, characterized in that: The invention comprises a fixed arm (1) and a movable arm (2) constituting a chuck, and a driving device for driving the movable arm (2) to rotate and open relative to the fixed arm (1); the driving device comprises an intermediate baffle (3) fixedly mounted in the fixed arm (1) and a pull rod mechanism for pulling the movable arm (2) to rotate relative to the intermediate baffle (3); the movable arm (2) comprises a rotating handle (4), the rotating handle (4) is rotatably connected to the intermediate baffle (3), a guide groove (5) for cooperating with the pull rod mechanism is provided on the rotating handle (4), the pull rod mechanism applies a force to the movable arm (2) through the guide groove (5) to drive the movable arm (2) to rotate, and a through groove is provided on the fixed arm (1) at a position corresponding to the rotation area of ​​the rotating handle (4); and a limiting groove (6) for limiting the driving end of the pull rod mechanism cooperating with the guide groove (5) is provided on the intermediate baffle (3).

2. The one-side opening and closing hemostatic clip according to claim 1, characterized in that: The pull rod mechanism comprises a pull rod body (7), a pull rope (8), an operating handle (9) and a slider (10), wherein the slider (10) is slidably arranged on the operating handle (9), the pull rope (8) is inserted into the operating handle (9), one end of which is connected to the slider (10), and the other end of which is connected to the end of the pull rod body (7); the driving end of the pull rod body (7) is connected to the limiting groove (6) and the guide groove (5) through the inserted movable shaft (11), and a first opening groove (12) is provided at the end of the pull rod body (7) for disengaging from the movable shaft (11) after the pull rope (8) is pulled into place; the fixed arm (1) is detachably connected to the end of the operating handle (8), and an elastic limiting mechanism is provided at the connection point for cooperating with the pull rod body (7) to release the chuck as a whole after the movable arm (2) is rotated into place, and a safety mechanism for limiting the pulling position of the pull rod body (7) and preventing the chuck from being released is provided on the intermediate baffle (3).

3. The one-side opening and closing hemostatic clip according to claim 2, characterized in that: The end of the operating handle (9) is connected to the fixed arm (1) via a connecting tube (13), the end of the fixed arm (1) is sleeved on the outer side of the end of the connecting tube (13), the elastic limiting mechanism comprises a V-shaped hook (14), the hook end of the V-shaped hook (14) is passed through the connecting tube (14) and the fixed arm (1), and the connecting tube (14) and the fixed arm (1) are limited, and a boss is provided on the pull rod body (7) for cooperating with the V-shaped hook (14) to apply a pulling force to the V-shaped hook.

4. The one-side opening and closing hemostatic clip according to claim 3, characterized in that: The V-shaped hook (14) comprises an elastic connecting section (15) having a hook at the end thereof and tilted outward to form a trumpet-shaped structure, and a straight rod section (16) parallel to the pulling direction of the pull rod mechanism. An arc structure is used for transition between the ends of the straight rod section (16), and the arc structure cooperates with the boss on the pull rod body (7) to apply a pulling force to the V-shaped hook (14) as a whole.

5. The one-side opening and closing hemostatic clip according to claim 3, characterized in that: The connecting pipe (13) and the fixed arm (1) are respectively provided with a first through hole (18) and a second through hole (19) which cooperate with the V-shaped hook, the diameter of the second through hole (19) being larger than the first through hole (18), and the first through hole (18) adopts a flaring structure in which the diameter gradually increases from the inside to the outside.

6. The one-side opening and closing hemostatic clip according to claim 2, characterized in that: The safety mechanism comprises a limit pull ring (20) passed through the middle baffle (3), the limit pull ring (20) being located on the moving path of the pull rod body (7) when it is pulled, and a step (21) is provided on the pull rod body (7) for cooperating with the limit pull ring (20) to limit the axial position of the pull rod body (7); the limit pull ring (20) is connected to a safety pull rope (22) passed through the operating handle (9), and the middle baffle (3) is provided with a second opening groove (23) at the position cooperating with the limit pull ring (20) for disengaging from the limit pull ring (20) when the limit pull ring (20) is pulled by the safety pull rope (22).

7. The one-side opening and closing hemostatic clip according to claim 6, characterized in that: The pull rod body (7) is located on one side of the plate surface of the intermediate baffle (3); a pull rod baffle (24) is provided on the pull rod body (7) to cooperate with the pull rod body (7) to limit the radial displacement between the pull rod body (7) and the intermediate baffle (3); the pull rod baffle (24) is located on the side of the intermediate baffle (3) away from the pull rod body (7); the pull rod baffle (24) and the pull rod body (7) are connected by a connecting shaft (25) that penetrates therethrough; a second limiting groove (26) that cooperates with the connecting shaft (25) is provided on the intermediate baffle (3); and a third opening groove (27) is provided on one side of the second limiting groove (26) along the moving direction of the pull rod body (7) for disengaging from the connecting shaft (25) when the chuck is released.

8. A method for using the unilateral opening and closing hemostatic clip according to any one of claims 1 to 7, characterized in that: A force is applied to the rotating handle on the movable arm through the pull rod mechanism, and the driving end of the pull rod mechanism moves along the limiting groove. The matching position of the driving end and the guide groove on the rotating handle changes, so that the rotating handle drives the movable arm to rotate as a whole relative to the fixed arm, thereby realizing the opening and closing of the chuck. The safety mechanism limits the movement stroke of the pull rod mechanism, and controls whether the chuck is released through the safety mechanism.

9. A method for using a single-side opening and closing hemostatic clip according to claim 8, characterized in that: When releasing the chuck, the safety mechanism is opened, the limit on the pull rod body is cancelled, so that the pull rod body can continue to be pulled by the pull rope, and during the movement of the pull rod body, a pulling force is applied to the V-shaped hook of the elastic limit mechanism, so that the hook end of the V-shaped hook is separated from the fixed arm, and at the same time, the movable shaft is disengaged from the first opening groove and the pull rod body, completing the release of the chuck.

10. A method for using a single-side opening and closing hemostatic clip according to claim 8, characterized in that: When the safety mechanism limits the pull rod mechanism, the limit pull ring of the safety mechanism blocks the movement of the pull rod body, and the pull rod baffle on the pull rod body limits the radial movement of the pull rod body along the contour of the limit pull ring, maintaining the limit pull ring on the pull rod body.

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