Curved needle adjuster in endoscopic surgery

Abstract

The utility model discloses a curved needle adjuster in endoscopic surgery, which comprises an adjuster body, and a first clamping component and a second clamping component which are used for clamping a needle head and can move back and forth are arranged on the adjuster body. The adjuster body is further provided with a first adjusting piece capable of driving the first clamping assembly to move front and back, a second adjusting piece capable of driving the second clamping assembly to move front and back, and a first elastic pressing assembly capable of pressing the needle on the first clamping assembly. The second elastic pressing assembly can press the needle head on the second clamping assembly; the third adjusting piece can drive the first elastic pressing assembly and the second elastic pressing assembly to be far away from the needle head; by the adoption of the structure, the relative distance between the first clamping assembly and the second clamping assembly is adjusted through the first adjusting piece and the second adjusting piece, and the radian of the needle head can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a curved needle adjuster during laparoscopic surgery. Background Art

[0002] Laparoscopic surgery, as a type of minimally invasive surgery, has been widely applied in clinical practice due to its advantages such as small trauma, fast recovery, and few complications. In laparoscopic surgery, curved needles are widely used in suture operations because of their unique curved surface design, which can reduce damage to surrounding tissues and improve suture accuracy. However, traditional curved needles have limitations in specific surgical scenarios. For example, when straight suture is required or the suture angle needs to be adjusted in a narrow space, the fixed shape of the curved needle cannot meet the requirements, thus affecting the surgical efficiency and effect.

[0003] Currently, the conventional method for adjusting the shape of a curved needle during surgery is carried out outside the body, that is, first taking out the curved needle from the body, adjusting its shape and then reinserting it. This process not only prolongs the surgical time and increases the surgical risk, but also may cause the suture thread to fall off during multiple adjustments, affecting the continuity and safety of the surgery. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a curved needle adjuster during laparoscopic surgery, which clamps the needle tip through the first clamping component and the second clamping component, and adjusts the relative distance between the first clamping component and the second clamping component through the first adjusting piece and the second adjusting piece to adjust the curvature of the needle tip.

[0005] The technical solution adopted by the utility model to solve its technical problems is to provide a curved needle adjuster during laparoscopic surgery, including an adjuster body. On the adjuster body, there are a first clamping component and a second clamping component for clamping the needle tip and capable of moving back and forth. On the adjuster body, there are also a first adjusting piece capable of driving the first clamping component to move back and forth, a second adjusting piece capable of driving the second clamping component to move back and forth, a first elastic pressing component capable of pressing the needle tip on the first clamping component, a second elastic pressing component capable of pressing the needle tip on the second clamping component, and a third adjusting piece capable of driving the first elastic pressing component and the second elastic pressing component away from the needle tip.

[0006] As a further improvement of the present utility model, a rotating block is rotatably connected to the adjuster body. A first through hole is provided on the rotating block for the first clamping assembly and the second clamping assembly to insert, so that the rotating block can drive the first clamping assembly and the second clamping assembly to rotate relative to the adjuster body. The rotating block is connected with a rotating locking member. The rotating locking member has a locking position that can limit the rotation of the rotating block relative to the adjuster body and an unlocking position that can enable the rotating block to rotate. The rotating locking member is connected with a first elastic member that can drive the rotating locking member to move to the locking position. A fourth adjusting member is provided on the adjuster body that can drive the rotating locking member to move to the unlocking position.

[0007] As a further improvement of the present utility model, the third adjusting member and the fourth adjusting member are hinged to the adjuster body. The fourth adjusting member is located between the third adjusting member and the rotating block, so that when the third adjusting member and the fourth adjusting member are pressed simultaneously, the upper end of the fourth adjusting member approaches the rotating block, and the upper end of the third adjusting member moves away from the rotating block.

[0008] As a further improvement of the present utility model, a first connecting boss and a second connecting boss are respectively provided on both sides of the rotating block on the adjuster body. The first connecting boss is provided with a first connecting hole for installing the first elastic member. The second connecting boss is provided with a second connecting hole corresponding to the first connecting hole. The rotating block is provided with a rotating through hole corresponding to the first connecting hole and the second connecting hole. The rotating locking member is inserted into the first connecting hole, the second connecting hole and the rotating through hole and can move up and down along the rotating through hole to the locking position or the unlocking position. The rotating locking member rotates synchronously with the rotating block. The second connecting boss is provided with an unlocking hole communicating with the second connecting hole. The upper end of the fourth adjusting member is hinged with an unlocking rod, and the other end of the unlocking rod is inserted into the unlocking hole. When the fourth adjusting member is pressed, the unlocking rod pushes the rotating locking member to move to the unlocking position.

[0009] As a further improvement of the present utility model, a plurality of clamping bosses are provided on the inner side wall of the second connecting hole. The rotating locking member is provided with a plurality of clamping grooves for the clamping bosses to insert. The rotating locking member is provided with a guiding inclined surface at one end close to the unlocking rod. The unlocking rod is provided with an unlocking inclined surface cooperating with the guiding inclined surface. When the clamping groove disengages from the clamping boss, the rotating locking member moves to the unlocking position.

[0010] As a further improvement of the present utility model, both the first clamping assembly and the second clamping assembly include a transition member that can pass through the first through hole, an upper clamping jaw hinged to the transition member, a lower clamping jaw hinged to the transition member, and a second elastic member that can drive the upper clamping jaw and the lower clamping jaw to approach each other.

[0011] As a further improvement of the present utility model, both the first elastic pressing assembly and the second elastic pressing assembly include a pressing block, a third elastic member in a compressed state, and a fourth elastic member in a compressed state. The opposite surfaces of the upper clamping jaw and the lower clamping jaw are provided with corresponding clamping bosses. The third elastic member is connected between the pressing block and the upper clamping jaw, and the fourth elastic member is connected between the pressing block and the lower clamping jaw to drive the pressing block to fit on the clamping boss.

[0012] As a further improvement of the present utility model, the third adjusting member is hinged to the adjuster body. A connecting rope is provided between the pressing block and the third adjusting member. When the third adjusting member is pressed, the third adjusting member drives the pressing block away from the upper clamping jaw and the lower clamping jaw through the connecting rope, and pushes the upper clamping jaw and the lower clamping jaw away from each other through the third elastic member and the fourth elastic member.

[0013] As a further improvement of the present utility model, the first adjusting member and the second adjusting member are slidably arranged on the adjuster body in the front-back direction. The first adjusting member is provided with a first waist-shaped groove at one end close to the first clamping assembly, and the second adjusting member is provided with a second waist-shaped groove at one end close to the second clamping assembly. The first clamping assembly is rotatably connected to the first waist-shaped groove, and the second clamping assembly is rotatably connected to the second waist-shaped groove.

[0014] As a further improvement of the present utility model, a limiting assembly capable of restricting the rotation of the fourth adjusting member is provided on the adjuster body. The limiting assembly includes a fixed table and a locking pin. The outer peripheral surface of the locking pin is provided with a locking boss. The fixed table is provided with a first concave position for the locking boss to be engaged and a second concave position below the first concave position. When the locking boss is engaged in the second concave position, the locking pin is located within the rotation range of the fourth adjusting member to restrict the rotation of the fourth adjusting member.

[0015] The beneficial effects of the present utility model are at least:

[0016] 1. Use the first clamping assembly and the second clamping assembly to clamp the needle, press the needle on the first clamping assembly through the first elastic pressing assembly, press the needle on the second clamping assembly through the second elastic pressing assembly, and adjust the relative distance between the first clamping assembly and the second clamping assembly by moving the first adjusting member and the second adjusting member to adjust the arc of the needle.

[0017] 2. The setting of the rotating block enables the first clamping assembly and the second clamping assembly to rotate along the arc of the curved needle while moving along the curved needle, avoiding the need to constantly swing the adjuster body during the operation.

[0018] 3. The setting of the limiting assembly can prevent medical staff from accidentally touching the fourth adjusting member and causing the first clamping assembly and the second clamping assembly to rotate. Description of the Drawings

[0019] Figure 1is a schematic structural view of the present utility model and a partial enlarged view thereof;

[0020] Figure 2 is a schematic structural view of the present utility model with the adjuster body and the limit assembly omitted;

[0021] Figure 3 is a sectional view of the present utility model;

[0022] Figure 4 is an exploded view of the structure of the first clamping assembly and the first elastic pressing assembly of the present utility model;

[0023] Figure 5 is a schematic structural view of the rotation locking member of the present utility model;

[0024] Figure 6 is a schematic structural view of the rotation block of the present utility model;

[0025] Figure 7 is Figure 2 an enlarged view of the partial view A in;

[0026] Figure 8 is Figure 3 an enlarged view of the partial view B in;

[0027] Figure 9 is Figure 3 an enlarged view of the partial view C in;

[0028] Figure 10 is Figure 3 an enlarged view of the partial view D in. Specific embodiments

[0029] Next, the technical solutions of the present utility model will be described clearly and completely with reference to the accompanying drawings.

[0030] Refer to Figure 1-10, the present utility model provides a curved needle adjuster for laparoscopic surgery, which includes an adjuster body 1. On the adjuster body 1, there are a first clamping assembly 2 and a second clamping assembly 3 for clamping the needle tip and capable of moving back and forth. On the adjuster body 1, there are also a first adjusting member 11 capable of driving the first clamping assembly 2 to move back and forth, a second adjusting member 12 capable of driving the second clamping assembly 3 to move back and forth, a first elastic pressing assembly 4 capable of pressing the needle tip onto the first clamping assembly 2, a second elastic pressing assembly 5 capable of pressing the needle tip onto the second clamping assembly 3, and a third adjusting member 13 capable of driving the first elastic pressing assembly 4 and the second elastic pressing assembly 5 away from the needle tip. The first clamping assembly 2 and the second clamping assembly 3 are used to clamp the needle tip, the first elastic pressing assembly 4 presses the needle tip onto the first clamping assembly 2, the second elastic pressing assembly 5 presses the needle tip onto the second clamping assembly 3, and the relative distance between the first clamping assembly 2 and the second clamping assembly 3 is adjusted by moving the first adjusting member 11 and the second adjusting member 12 to adjust the curvature of the needle tip.

[0031] Refer to Figure 2 , Figure 6 and Figure 9 , the adjuster body 1 is rotatably connected with a rotating block 14. On the rotating block 14, there is a first through hole 141 for the first clamping assembly 2 and the second clamping assembly 3 to insert, so that the rotating block 14 can drive the first clamping assembly 2 and the second clamping assembly 3 to rotate relative to the adjuster body 1. The rotating block 14 is connected with a rotation locking member 15. The rotation locking member 15 has a locking position capable of restricting the rotation of the rotating block 14 relative to the adjuster body 1 and an unlocking position capable of enabling the rotating block 14 to rotate. The rotation locking member 15 is connected with a first elastic member 142 capable of driving the rotation locking member 15 to move to the locking position. On the adjuster body 1, there is a fourth adjusting member 16 capable of driving the rotation locking member 15 to move to the unlocking position. The setting of the rotating block 14 enables the first clamping assembly 2 and the second clamping assembly 3 to rotate along the curvature of the curved needle while moving along the curved needle, avoiding the need to constantly swing the adjuster body 1 during the operation. In order to prevent the first clamping assembly 2 and the second clamping assembly 3 from rotating when the medical staff do not want to rotate, a rotation locking member 15 is provided to lock or unlock the rotation of the rotating block 14 relative to the adjuster body 1, avoiding accidental touch.

[0032] Refer to Figure 1-3, the third adjusting member 13 and the fourth adjusting member 16 are hinged to the adjuster body 1. The fourth adjusting member 16 is located between the third adjusting member 13 and the rotating block 14 so that when the third adjusting member 13 and the fourth adjusting member 16 are pressed simultaneously, the upper end of the fourth adjusting member 16 approaches the rotating block 14, and the upper end of the third adjusting member 13 moves away from the rotating block 14; as can be seen from the attached drawings, the third adjusting member 13 and the fourth adjusting member 16 form the structure of a front handle and a rear handle. Medical staff can hold and press the third adjusting member 13 and the fourth adjusting member 16 simultaneously, which is very convenient. At this time, it should be noted that pressing the third adjusting member 13 corresponds to the first elastic pressing assembly 4 and the second elastic pressing assembly 5 releasing the needle, and pressing the fourth adjusting member 16 corresponds to unlocking the rotation of the rotating block 14. There must be a certain sequence between the two, that is, if you want to unlock the rotation of the rotating block 14, the purpose is to make the first clamping assembly 2 and the second clamping assembly 3 move along the curved needle. When the first elastic pressing assembly 4 and the second elastic pressing assembly 5 press the needle, the first clamping assembly 2 and the second clamping assembly 3 cannot move along the curved needle. Therefore, the prerequisite for pressing the fourth adjusting member 16 must be to press the third adjusting member 13 simultaneously or in advance. The setting of the front handle and the rear handle can easily achieve simultaneous pressing. On the contrary, releasing the needle does not necessarily require moving back and forth along the curved needle. Therefore, pressing the third adjusting member 13 does not necessarily require pressing the fourth adjusting member 16. At this time, it should be noted again that the rotation locking member 15 will lock the rotation of the rotating block 14, and there are two implementation methods for locking the rotation of the rotating block 14. The first method will be mentioned later, and the second is a clutch structure. Using the first method to lock the rotation of the rotating block 14 can limit the rotation of the fourth adjusting member 16, that is, medical staff cannot press when pressing the fourth adjusting member 16. That is to say, medical staff only need to adjust the state of the limit component 6 to obtain two desired results respectively when pressing the front handle and the rear handle simultaneously, which is very convenient.

[0033] Referring to Figure 9, on both sides of the rotating block 14 of the adjuster body 1, a first connecting boss 17 and a second connecting boss 18 are respectively provided. The first connecting boss 17 is provided with a first connecting hole 171 for installing a first elastic member 142. The second connecting boss 18 is provided with a second connecting hole 181 corresponding to the first connecting hole 171. The rotating block 14 is provided with a rotating through hole 143 corresponding to the first connecting hole 171 and the second connecting hole 181. A rotating locking member 15 is inserted into the first connecting hole 171, the second connecting hole 181 and the rotating through hole 143 and can move up and down along the rotating through hole 143 to a locking position or an unlocking position. The rotating locking member 15 rotates synchronously with the rotating block 14. The second connecting boss 18 is provided with an unlocking hole 182 communicating with the second connecting hole 181. The upper end of the fourth adjusting member 16 is hinged with an unlocking rod 161. The other end of the unlocking rod 161 is inserted into the unlocking hole 182. When pressing the fourth adjusting member 16, the unlocking rod 161 pushes the rotating locking member 15 to move to the unlocking position; when the fourth adjusting member 16 is not pressed, the first elastic member 142 pushes the rotating locking member 15 to move to the locking position; the way that the rotating locking member 15 rotates synchronously with the rotating block 14 adopts a keyway connection.

[0034] Refer to Figure 9 , on the inner side wall of the second connecting hole 181, a plurality of clamping bosses 183 are provided. The rotating locking member 15 is provided with a plurality of clamping grooves 151 for the clamping bosses 183 to be inserted into. One end of the rotating locking member 15 close to the unlocking rod 161 is provided with a guiding inclined surface 152. The unlocking rod 161 is provided with an unlocking inclined surface 1611 matching with the guiding inclined surface 152. When the clamping groove 151 is disengaged from the clamping boss 183, the rotating locking member 15 moves to the unlocking position.

[0035] Refer to Figure 4 and Figure 8 , both the first clamping assembly 2 and the second clamping assembly 3 include a transition member 21 capable of passing through the first through hole 141, an upper clamping jaw 22 hinged to the transition member 21, a lower clamping jaw 23 hinged to the transition member 21, and a second elastic member 24 capable of driving the upper clamping jaw 22 and the lower clamping jaw 23 to approach each other; the second elastic member 24 is in a stretched state and always drives the upper clamping jaw 22 and the lower clamping jaw 23 to approach each other.

[0036] Refer to Figure 4 and Figure 8, both the first elastic pressing assembly 4 and the second elastic pressing assembly 5 include a pressing block 41, a third elastic member 42 in a compressed state, and a fourth elastic member 43 in a compressed state. The opposite surfaces of the upper clamping jaw 22 and the lower clamping jaw 23 are provided with corresponding clamping bosses 25. The third elastic member 42 is connected between the pressing block 41 and the upper clamping jaw 22, and the fourth elastic member 43 is connected between the pressing block 41 and the lower clamping jaw 23 to drive the pressing block 41 to fit on the clamping boss 25. Since under the drive of the second elastic member 24, there is a force for the upper clamping jaw 22 and the lower clamping jaw 23 to approach each other, and this force is greater than the force that the third elastic member 42 and the fourth elastic member 43 push the upper clamping jaw 22 and the lower clamping jaw 23, resulting in the third elastic member 42 and the fourth elastic member 43 pushing the pressing block 41 to fit on the clamping boss 25.

[0037] Refer to Figure 4 and Figure 8 , the third adjusting member 13 is hinged on the adjuster body 1. A connecting rope 411 is provided between the pressing block 41 and the third adjusting member 13. When pressing the third adjusting member 13, the third adjusting member 13 drives the pressing block 41 away from the upper clamping jaw 22 and the lower clamping jaw 23 through the connecting rope 411, and pushes the upper clamping jaw 22 and the lower clamping jaw 23 away from each other through the third elastic member 42 and the fourth elastic member 43. Since the force is mutual, when the third elastic member 42 and the fourth elastic member 43 push the pressing block 41 to fit on the clamping boss 25, there will also be a reaction force to drive the upper clamping jaw 22 and the lower clamping jaw 23 away from each other. However, due to the setting of the second elastic member 24, this force will be smaller than the force pushing the pressing block 41, resulting in the pressing block 41 remaining in contact with the clamping boss 25. And pulling the pressing block 41 backward through the connecting rope 411 to further compress the third elastic member 42 and the fourth elastic member 43 will cause the reaction force to become larger and finally push the upper clamping jaw 22 and the lower clamping jaw 23 away from each other.

[0038] Refer to Figure 7 , the first adjusting member 11 and the second adjusting member 12 are slidably arranged on the adjuster body 1 in the front-back direction. The first adjusting member 11 is provided with a first waist-shaped slot 111 at one end close to the first clamping assembly 2, and the second adjusting member 12 is provided with a second waist-shaped slot 121 at one end close to the second clamping assembly 3. The first clamping assembly 2 is rotatably connected to the first waist-shaped slot 111, and the second clamping assembly 3 is rotatably connected to the second waist-shaped slot 121. Since the rotating block 14 will drive the first clamping assembly 2 and the second clamping assembly 3 to rotate relative to the adjuster body 1 while rotating, and the first adjusting member 11 and the second adjusting member 12 only move back and forth. If directly hinged through two round holes, then when pushing the first adjusting member 11 forward, it will cause the rotating block 14 to rotate. If the rotating block 14 is not unlocked, it will be directly stuck. And through the setting of the waist-shaped slots for rotational connection, this problem can be avoided.

[0039] Refer toFigure 10 , a limiting component 6 capable of restricting the rotation of the fourth adjusting member 16 is provided on the adjuster body 1. The limiting component 6 includes a fixed platform 61 and a locking pin 62. A locking boss 621 is provided on the outer peripheral surface of the locking pin 62. The fixed platform 61 is provided with a first recess 611 for the locking boss 621 to be snap-fitted and a second recess 612 located below the first recess 611. When the locking boss 621 is snap-fitted in the second recess 612, the locking pin 62 is within the rotation range of the fourth adjusting member 16 to restrict the rotation of the fourth adjusting member 16; when the locking pin 62 is pulled upward, the unlocking of the fourth adjusting member 16 is achieved, and when the locking pin 62 is pressed downward, the locking of the fourth adjusting member 16 is achieved.

Claims

1. A laparoscopic intraoperative curved needle adjuster, characterized in that, It includes an adjuster body (1), on which there are a first clamping component (2) and a second clamping component (3) for clamping the needle and capable of moving back and forth. On the adjuster body (1), there are also a first adjusting member (11) capable of driving the first clamping component (2) to move back and forth, a second adjusting member (12) capable of driving the second clamping component (3) to move back and forth, a first elastic pressing component (4) capable of pressing the needle onto the first clamping component (2), a second elastic pressing component (5) capable of pressing the needle onto the second clamping component (3), and a third adjusting member (13) capable of driving the first elastic pressing component (4) and the second elastic pressing component (5) away from the needle.

2. The adjustable curved needle during endoscopic surgery according to claim 1, characterized in that, The adjuster body (1) is rotatably connected with a rotating block (14). There is a first through hole (141) on the rotating block (14) for the first clamping component (2) and the second clamping component (3) to be inserted into, so that the rotating block (14) can drive the first clamping component (2) and the second clamping component (3) to rotate relative to the adjuster body (1). The rotating block (14) is connected with a rotation locking member (15). The rotation locking member (15) has a locking position capable of restricting the rotation of the rotating block (14) relative to the adjuster body (1) and an unlocking position capable of enabling the rotating block (14) to rotate. The rotation locking member (15) is connected with a first elastic member (142) capable of driving the rotation locking member (15) to move to the locking position. On the adjuster body (1), there is a fourth adjusting member (16) capable of driving the rotation locking member (15) to move to the unlocking position.

3. The adjustable curved needle during endoscopic surgery according to claim 2, wherein The third adjusting member (13) and the fourth adjusting member (16) are hinged on the adjuster body (1). The fourth adjusting member (16) is located between the third adjusting member (13) and the rotating block (14), so that when the third adjusting member (13) and the fourth adjusting member (16) are pressed simultaneously, the upper end of the fourth adjusting member (16) approaches the rotating block (14), and the upper end of the third adjusting member (13) moves away from the rotating block (14).

4. The adjustable curved needle during endoscopic surgery according to claim 3, wherein The regulator body (1) is respectively provided with a first connecting boss (17) and a second connecting boss (18) on both sides of the rotating block (14). The first connecting boss (17) is provided with a first connecting hole (171) for installing a first elastic member (142). The second connecting boss (18) is provided with a second connecting hole (181) corresponding to the first connecting hole (171). The rotating block (14) is provided with a rotating through hole (143) corresponding to the first connecting hole (171) and the second connecting hole (181). The rotating locking member (15) is inserted into the first connecting hole (171), the second connecting hole (181) and the rotating through hole (143) and can move up and down along the rotating through hole (143) to a locking position or an unlocking position. The rotating locking member (15) rotates synchronously with the rotating block (14). The second connecting boss (18) is provided with an unlocking hole (182) communicating with the second connecting hole (181). The upper end of the fourth adjusting member (16) is hinged with an unlocking rod (161). The other end of the unlocking rod (161) is inserted into the unlocking hole (182). When the fourth adjusting member (16) is pressed, the unlocking rod (161) pushes the rotating locking member (15) to move to the unlocking position.

5. A laparoscopic intraoperative curved needle adjuster according to claim 4, characterized in that, The inner side wall of the second connecting hole (181) is provided with a plurality of clamping bosses (183). The rotating locking member (15) is provided with a plurality of clamping grooves (151) for the clamping bosses (183) to insert. The rotating locking member (15) is provided with a guiding inclined surface (152) at one end close to the unlocking rod (161). The unlocking rod (161) is provided with an unlocking inclined surface (1611) matching the guiding inclined surface (152). When the clamping groove (151) disengages from the clamping boss (183), the rotating locking member (15) moves to the unlocking position.

6. The adjustable curved needle during endoscopic surgery according to claim 2, wherein, Both the first clamping assembly (2) and the second clamping assembly (3) include a transition member (21) capable of passing through the first through hole (141), an upper clamping jaw (22) hinged to the transition member (21), a lower clamping jaw (23) hinged to the transition member (21), and a second elastic member (24) capable of driving the upper clamping jaw (22) and the lower clamping jaw (23) to approach each other.

7. The adjustable curved needle during endoscopic surgery according to claim 6, wherein Both the first elastic pressing assembly (4) and the second elastic pressing assembly (5) include a pressing block (41), a third elastic member (42) in a compressed state, and a fourth elastic member (43) in a compressed state. The opposite surfaces of the upper clamping jaw (22) and the lower clamping jaw (23) are provided with corresponding clamping bosses (25). The third elastic member (42) is connected between the pressing block (41) and the upper clamping jaw (22). The fourth elastic member (43) is connected between the pressing block (41) and the lower clamping jaw (23) to drive the pressing block (41) to fit on the clamping boss (25).

8. The adjustable bent needle during endoscopic surgery according to claim 7, wherein, The third adjusting member (13) is hinged to the adjuster body (1). A connecting rope (411) is provided between the pressing block (41) and the third adjusting member (13). When the third adjusting member (13) is pressed, the third adjusting member (13) drives the pressing block (41) away from the upper jaw (22) and the lower jaw (23) through the connecting rope (411), and pushes the upper jaw (22) and the lower jaw (23) away from each other through the third elastic member (42) and the fourth elastic member (43).

9. The adjustable curved needle during endoscopic surgery according to claim 1, wherein, The first adjusting member (11) and the second adjusting member (12) are slidably arranged on the adjuster body (1) in the front-back direction. The first adjusting member (11) is provided with a first waist-shaped slot (111) at one end close to the first clamping assembly (2), and the second adjusting member (12) is provided with a second waist-shaped slot (121) at one end close to the second clamping assembly (3). The first clamping assembly (2) is rotatably connected to the first waist-shaped slot (111), and the second clamping assembly (3) is rotatably connected to the second waist-shaped slot (121).

10. A laparoscopic intraoperative curved needle adjuster according to claim 2, characterized in that, A limiting assembly (6) capable of restricting the rotation of the fourth adjusting member (16) is provided on the adjuster body (1). The limiting assembly (6) includes a fixed platform (61) and a locking pin (62). A locking boss (621) is provided on the outer peripheral surface of the locking pin (62). The fixed platform (61) is provided with a first recess (611) for the locking boss (621) to be snap-fitted and a second recess (612) located below the first recess (611). When the locking boss (621) is snap-fitted in the second recess (612), the locking pin (62) is located within the rotation range of the fourth adjusting member (16) to restrict the rotation of the fourth adjusting member (16).

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