Secondary pressing type suture gun

Abstract

According to the technical scheme, the secondary pressing type sewing gun is characterized in that the secondary pressing type sewing gun comprises a shell; a connecting pipe; a wrench; a clamping groove is formed in the trigger; a clamping block; a clamping control member; and a needle pushing rod; when the clamping groove is located outside the shell, the outer wrench is pressed, the clamping control piece rotates along with the inner wrench until the clamping block is clamped in the clamping groove, the fixed tong head and the movable tong head are clamped, and when the trigger is toggled to enable the outer wrench to continue pressing and push the clamping groove to partially enter the shell, the clamping control piece rotates along with the inner wrench. The clamping control piece stops swinging, and the needle pushing rod rotates along with the inner wrench under the action of the connecting rod to push the suture needle to extend out; the wrench is connected with the clamping control piece and the needle pushing rod, pressing of the wrench in one direction can be carried out in two times, the clamping action and the suture needle pushing action are achieved respectively, and the operation process is simplified.

Description

Technical Field

[0001] The present invention relates to a suturing gun, and more particularly to a secondary pressing type suturing gun. Background Art

[0002] A suture gun is a surgical instrument used to suture human tissue after surgery. The doctor fires the suture gun using the wrench on the handle, continuously pulling and loosening the wire rope, driving the front swing head to drive the suture needle to continuously rotate, piercing the human tissue for suture.

[0003] The front end of the existing suturing gun is provided with a grabbing forceps head, which is used to clamp the tissue to be sutured before the suture needle moves, so as to facilitate the subsequent suture needle suturing operation.

[0004] However, in the prior art, most of the grabbing forceps heads of suture needles are provided with a separate driving assembly. After clamping the tissue, the forceps head needs to be locked by the driving assembly, and then the suture needle is driven by a wrench to perform the suturing operation. Therefore, each suturing needs to be performed separately by operating the driving assembly and the wrench, thereby increasing the complexity of the operation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a two-press type suture gun, which is connected to the clamping control part and the needle pushing rod through the wrench. The pressing of the wrench in one direction can be performed twice to respectively realize the clamping and suture needle pushing actions, thereby simplifying the operation process.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a two-stage pressing type suturing gun, comprising a housing; A connecting tube, the connecting tube is fixedly connected to the front end of the housing, and the front end of the connecting tube is provided with a fixed clamp head and a movable clamp head constituting the clamp head, and a suture needle capable of passing through the fixed clamp head and the movable clamp head; A wrench, the wrench is rotatably connected to the housing, the wrench is composed of an outer wrench and an inner wrench, the outer wrench is located outside the housing, the inner wrench is located inside the housing, and the connection between the outer wrench and the inner wrench is rotatably connected to the housing; A trigger, one end of which is rotatably connected to the wrench, and the other end of which extends into the housing, and a slot is provided on the trigger; A card block, which is fixedly connected in the housing and fits with one side of the card slot of the trigger; A clamping control member, the clamping control member is rotatably connected in the housing, the inner wrench is provided with a connecting pin that drives the clamping control member to rotate, and the clamping control member is used to drive the movable clamp head to clamp on the fixed clamp head; and a needle push rod, which is rotatably connected in the housing and used to drive the suture needle to perform suturing, the needle push rod is connected to the inner wrench through a connecting rod, and both ends of the connecting rod are rotatably connected to the needle push rod and the inner wrench respectively; When the slot is outside the shell, the outer wrench is pressed, and the clamping control part rotates with the inner wrench until the block is clamped in the slot, and the fixed clamp head and the movable clamp head are clamped. When the trigger is pulled to make the outer wrench continue to press and push the slot part into the shell, the clamping control part stops swinging and the needle pusher rod rotates with the inner wrench under the action of the connecting rod to push the suture needle out.

[0007] The present invention is further configured as follows: a buckle needle is rotatably connected to one end of the top of the needle push rod, and the buckle needle is connected to the suture needle. When the top end of the needle push rod swings toward the side close to the buckle needle, the suture needle is pushed out.

[0008] The present invention is further configured as follows: the connection between the outer wrench and the inner wrench is located on the side of the needle pusher rod close to the suture needle, and the connecting rod is located between the needle pusher rod and the connection between the outer wrench and the inner wrench; A first circle is formed with the rotation axis of the wrench as the center and the distance between the connection point of the connecting rod and the inner wrench to the rotation axis of the half shaft as the radius, and a second circle is formed with the rotation axis of the connecting rod on the push pin rod when the wrench is not pressed as the center and the distance between the connection point of the connecting rod on the push pin rod and the connection point of the connecting rod on the inner wrench as the radius, and the first circle and the second circle have two intersection points, which are a low intersection point and a high intersection point respectively; In the initial state when the wrench is not pressed, the connection point between the connecting rod and the inner wrench is located at the low intersection point. When the wrench is pressed until the clamping block is inserted into the clamping slot, the connection point between the connecting rod and the inner wrench is located at the high intersection point.

[0009] The present invention is further configured as follows: a pull rod is hinged on the top of the clamping control member, and the other end of the pull rod is connected to the movable clamp head. When the clamping control member drives the pull rod to slide in a direction away from the movable clamp head, the pull rod drives the movable clamp head to clamp on the fixed clamp head.

[0010] The present invention is further configured as follows: a control groove is provided on the clamping control member, the connecting pin is located in the control groove, and a groove wall of the control groove away from the movable clamp head is configured as a control groove wall and is in contact with the connecting pin; The control groove is configured as a plane segment and an arc segment located at the top of the plane segment. In the initial state where the wrench is not pressed, the connecting pin contacts the position of the plane segment near the bottom. When the card block is inserted into the card slot, the connecting pin contacts the connection between the plane segment and the arc segment, and at this time, the rotation arc of the arc segment coincides with that of the connecting pin.

[0011] The present invention is further configured as follows: the trigger comprises an extension section, the slot is arranged on the extension section, and one end of the extension section away from the outer wrench extends into the housing; and a connecting section, the connecting section being hinged to the outer wrench and extending below the outer wrench; An unlocking spring is arranged between the connecting section and the outer wrench. The unlocking spring is located above the hinge point between the connecting section and the outer wrench and is in a compressed state to press the extension section tightly onto the clamping block.

[0012] The present invention is further configured to include a reset spring, one end of which is connected to the inner wrench, and the other end of which is fixedly connected to the reset pin in the shell.

[0013] The present invention is further configured as follows: a needle sleeve rotatably connected to the connecting tube is provided in the connecting tube, the suture needle passes through the needle sleeve and is connected to the buckle needle, a connecting groove is provided at the top of one end where the suture needle is connected to the buckle needle, a connecting block is provided at the bottom of one end where the buckle needle is connected to the suture needle, and the connecting block can be snapped into the connecting groove; One end of the needle sleeve is rotatably connected to the connecting pipe, and an elastic piece is arranged at the bottom of the other end. When the elastic piece is in a normal state, the connecting block is inserted into the connecting groove.

[0014] The present invention is further configured to include a pressing block, which is rotatably connected to the shell, the pressing block is located above the needle sleeve, the bottom of the pressing block contacts the top of the needle sleeve and the top of the pressing block extends upward from the shell.

[0015] The present invention is further configured as follows: a spring sheet is detachably connected to the movable pliers head, a receiving groove for receiving the spring sheet is provided at the front end of the movable pliers head, a clamping groove is provided at the bottom of the receiving groove close to the connecting pipe side, a clamping sheet is fixedly connected to one end of the spring sheet close to the clamping groove, and the clamping sheet is upwardly tilted close to one end of the clamping groove and can be clamped into the clamping groove.

[0016] In summary, the present invention has the following beneficial effects compared with the prior art: 1. The present invention connects the wrench with the clamping control member and the needle pushing rod. The wrench can be pressed twice in one direction to respectively realize the clamping and suture needle pushing actions, thereby simplifying the operation process. 2. The present invention provides a second pressing function, so that during the suturing process, the doctor can take a short break and pause. After the pause, the doctor only needs to press twice to lock and clamp the captured tissue to complete the subsequent suturing operation. 3. The present invention allows the suture gun to be used multiple times by replacing the suture needle and the spring sheet, thereby extending the service life and reducing medical costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the first embodiment; Figure 2It is a cross-sectional view of the overall structure of the first embodiment; Figure 3 This is a schematic diagram showing a first circle and a second circle according to the first embodiment; Figure 4 for Figure 3 A magnified schematic diagram of part A; Figure 5 for Figure 3 An enlarged schematic diagram of part B; Figure 6 for Figure 3 An enlarged schematic diagram of part C of FIG. Figure 7 A schematic diagram of a spring sheet is shown in an embodiment; Figure 8 It is a schematic diagram of the overall structure of the second embodiment; Fig. 9 It is a schematic diagram of the overall structure of Embodiment 3; Fig.10 It is a schematic diagram of the overall structure of the fourth embodiment; Fig.11 It is a schematic diagram of the overall structure of Example 5.

[0018] In the figure: 1, housing; 11, return spring; 2, connecting pipe; 21, movable clamp head; 211, receiving groove; 22, fixed clamp head; 3, spanner; 31, outer spanner; 32, inner spanner; 321, connecting pin; 33, first circle; 34, second circle; 35, low intersection; 36, high intersection; 4, trigger; 41, extension section; 411, slot; 412, block; 42, connecting section; 421, unlocking Spring; 5. Clamping control part; 51. Plane section; 52. Arc section; 6. Needle push rod; 61. Connecting rod; 62. Buckle needle; 621. Connecting block; 63. Suturing needle; 631. Connecting groove; 71. Needle sleeve; 72. Elastic part; 73. Pressing block; 8. Spring sheet; 81. Snap-on sheet; 91. Main body; 92. Pressing part; 93. Pressing head; 94. Preset groove; 95. Clamping groove; 96. Clamping part. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0020] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0021] Embodiment 1: A two-stage pressing type suture gun, see attached Figure 1 -Attached Figure 7 , including a shell 1, a connecting tube 2, a wrench 3, a trigger 4, a block 412, a clamping control member 5 and a needle push rod 6; the connecting tube 2 is fixedly connected to the front end of the shell 1, and the front end of the connecting tube 2 is provided with a fixed clamp head 22 and an active clamp head 21 constituting a clamp head, and a suture needle 63 that can pass through the fixed clamp head 22 and the active clamp head 21; the wrench 3 is rotatably connected to the shell 1, and the wrench 3 is composed of an outer wrench 31 and an inner wrench 32, the outer wrench 31 is located outside the shell 1, and the inner wrench 32 is located inside the shell 1, and the connection between the outer wrench 31 and the inner wrench 32 is rotatably connected to the shell 1; one end of the trigger 4 is rotatably connected to the wrench 3, and the other end extends into the shell 1, and a card slot 411 is provided on the trigger 4; the card block 412 is fixedly connected to the shell 1 and fits with a side of the trigger 4 where the card slot 411 is provided; the clamping control member 5 is rotatably connected to the shell 1, The inner wrench 32 is provided with a connecting pin 321 that drives the clamping control member 5 to rotate, and the clamping control member 5 is used to drive the movable clamp head 21 to be clamped on the fixed clamp head 22; the push-needle rod 6 is rotatably connected in the shell 1 and is used to drive the suture needle 63 to perform a suturing action, and the push-needle rod 6 is connected to the inner wrench 32 through the connecting rod 61, and the two ends of the connecting rod 61 are respectively rotatably connected to the push-needle rod 6 and the inner wrench 32; when the slot 411 is located outside the shell 1, the outer wrench 31 is pressed, and the clamping control member 5 rotates with the inner wrench 32 until the block 412 is clamped in the slot 411, and the fixed clamp head 22 and the movable clamp head 21 are clamped, and when the trigger 4 is pulled so that the outer wrench 31 continues to be pressed and the slot 411 is pushed into the shell 1, the clamping control member 5 stops swinging and the push-needle rod 6 rotates with the inner wrench 32 under the action of the connecting rod 61 to push the suture needle 63 out.

[0022] In the process of pressing the wrench 3, the first pressing is realized first. After the block 412 is inserted into the slot 411, the cooperation between the slot 411 and the block 412 blocks the continued pressing of the wrench 3. In this process, the inner wrench 32 drives the clamping control member 5 to rotate, thereby driving the movable clamp head 21 to be clamped on the fixed clamp head 22. In this process, the needle pusher 6 does not push the suture needle 63 to extend. Then, the block 412 is disengaged from the slot 411 by oscillating the trigger 4, so that the wrench 3 can continue to be pressed. The hand 3 presses and performs a second pressing. During the second pressing process, the rotating rod of the inner wrench 32 will not drive the clamping control part 5 to continue to rotate, and the inner wrench 32 will drive the needle push rod 6 to rotate and then push the suture needle 63 out. Then the wrench 3 rotates in the opposite direction until the block 412 is close to the slot 411, and then the second pressing process is continued, so that the suture needle 63 continuously extends and retracts to achieve suturing. During the suturing process, the movable clamp head 21 and the fixed clamp head 22 always keep clamping the tissue.

[0023] Specifically, one end of the top of the needle push rod 6 is rotatably connected to a snap needle 62, and the snap needle 62 is connected to the suture needle 63. When the top end of the needle push rod 6 swings toward the side close to the snap needle 62, the suture needle 63 is pushed out.

[0024] Specifically, the connection between the outer wrench 31 and the inner wrench 32 is located on the side of the needle pusher rod 6 close to the suture needle 63, and the connecting rod 61 is located between the needle pusher rod 6 and the connection between the outer wrench 31 and the inner wrench 32; with the rotation axis of the wrench 3 as the center, the distance between the connection point of the connecting rod 61 and the inner wrench 32 to the half-shaft rotation axis is used as the radius to form a first circle 33, with the rotation axis of the connecting rod 61 on the needle pusher rod 6 when the wrench 3 is not pressed as the center, and the connecting rod 61 is located between the needle pusher rod 6 and the connection between the outer wrench 31 and the inner wrench 32. The distance between the connection point on the rod 6 and the connection point of the connecting rod 61 on the inner wrench is the radius to form a second circle 34, and the first circle 33 and the second circle 34 have two intersections, namely a low intersection 35 and a high intersection 36; in the initial state when the wrench 3 is not pressed, the connection point of the connecting rod 61 and the inner wrench 32 is located at the low intersection 35, and when the wrench 3 is pressed until the block 412 is inserted into the slot 411, the connection point of the connecting rod 61 and the inner wrench 32 is located at the high intersection 36.

[0025] When the outer wrench 31 is pressed, the connection point between the connecting rod 61 and the inner wrench 32 moves from the low intersection 35 to the high intersection 36. Not only will the needle push rod 6 not be driven to rotate in the direction close to the suture needle 63, but the needle push rod 6 will be pushed to swing slightly in the direction away from the suture needle 63, thereby ensuring that the suture needle 63 will not be extended during the first pressing process. When the connection point between the connecting rod 61 and the inner wrench 32 continues to move upward from the high intersection 36, the needle push rod 6 will be driven by the connecting rod 61 to move in the direction close to the suture needle 63, thereby pushing the suture needle 63 to extend.

[0026] Specifically, a pull rod is hinged on the top of the clamping control member 5 , and the other end of the pull rod is connected to the movable clamp head 21 . When the clamping control member 5 drives the pull rod to slide in a direction away from the movable clamp head 21 , the pull rod drives the movable clamp head 21 to clamp on the fixed clamp head 22 .

[0027] Specifically, a control groove is provided on the clamping control member 5, and the connecting pin 321 is located in the control groove. The groove wall of the control groove away from the movable clamp head 21 is set as the control groove wall and is in contact with the connecting pin 321; the control groove is set as a plane segment 51 and an arc segment 52 located at the top of the plane segment 51. In the initial state where the wrench 3 is not pressed, the connecting pin 321 contacts the position of the plane segment 51 near the bottom. When the clamping block 412 is inserted into the clamping groove 411, the connecting pin 321 contacts the connection between the plane segment 51 and the arc segment 52, and at this time, the arc segment 52 coincides with the rotation arc of the connecting pin 321.

[0028] By setting the two sections of the control groove wall on the control groove, during the first pressing process, the clamping control member 5 can slide the device in the direction away from the fixed clamp head 22 to pull the movable clamp head 21 and the fixed clamp head 22 to clamp. Then, during the second pressing process, the connecting pin 321 contacts the arc segment 52. Due to the setting of the arc segment 52, the position of the clamping control member 5 remains unchanged, so that the movable clamp head 21 and the fixed clamp head 22 can maintain the clamping action.

[0029] Specifically, the trigger 4 includes an extension section 41 and a connecting section 42, the slot 411 is arranged on the extension section 41 and one end of the extension section 41 away from the external wrench 31 extends into the shell 1; the connecting section 42 is hinged on the external wrench 31 and extends downwardly from the external wrench 31; an unlocking spring 421 is arranged between the connecting section 42 and the external wrench 31, the unlocking spring 421 is located above the hinge point between the connecting section 42 and the external wrench 31 and the unlocking spring 421 is in a compressed state to press the extension section 41 tightly against the block 412.

[0030] Specifically, the present embodiment further comprises a reset spring 11 , one end of which is connected to the inner wrench 32 , and the other end of which is fixedly connected to the reset pin in the housing 1 .

[0031] Specifically, a needle sleeve 71 is provided in the connecting tube 2 and is rotatably connected to the connecting tube 2. The suture needle 63 passes through the needle sleeve 71 and is connected to the buckle needle 62. A connecting groove 631 is provided at the top of one end where the suture needle 63 is connected to the buckle needle 62. A connecting block 621 is provided at the bottom of one end where the buckle needle 62 is connected to the suture needle 63. The connecting block 621 can be inserted into the connecting groove 631. One end of the needle sleeve 71 is rotatably connected to the connecting tube 2, and an elastic member 72 is provided at the bottom of the other end. When the elastic member 72 is in a normal state, the connecting block 621 is inserted into the connecting groove 631. Specifically, this embodiment further includes a pressing block 73, which is rotatably connected to the housing 1. The pressing block 73 is located above the needle sleeve 71. The bottom of the pressing block 73 contacts the top of the needle sleeve 71 and the top of the pressing block 73 extends upward from the housing 1. Specifically, the elastic member 72 is provided as a spring.

[0032] The arrangement of the pressing block 73 and the needle sleeve 71 facilitates the installation and removal of the suture needle 63 .

[0033] Specifically, the movable pliers head 21 is detachably connected to a spring sheet 8, and a receiving groove 211 for receiving the spring sheet 8 is provided at the front end of the movable pliers head 21. A clamping groove is provided at the bottom of the receiving groove 211 near the connecting pipe 2. A clamping piece 81 is fixedly connected to one end of the spring sheet 8 near the clamping groove, and the clamping piece 81 is upwardly tilted near one end of the clamping groove and can be clamped into the clamping groove.

[0034] Embodiment 2: A tool for removing spring sheet 8, see attached Figure 8 The spring sheet 8 removal tool is used to remove the spring sheet 8 from the movable pliers head 21; the tool includes a main body 91 and a pressing portion 92, the pressing portion 92 is an elastic pressing portion 92, the pressing portion 92 is located at the top of the main body 91, and a pressing head 93 is fixedly connected to the pressing portion 92 close to the side of the main body 91; when disassembling, the tool is put on the spring sheet 8, and then the pressing head 93 is aligned with the clamping piece 81 of the spring sheet 8, and then the pressing portion 92 is pressed downward, and the clamping piece 81 is pushed downward by the pressing head 93 to push the clamping piece 81 out of the clamping groove, and then the tool sleeve is pulled to drive the spring sheet 8 to be out of the movable pliers head 21.

[0035] Embodiment 3: A tool for installing a spring sheet 8, see attached Fig. 9, which is used to install the spring sheet 8 on the movable clamp head 21. The tooling is provided with a preset groove 94 for accommodating the spring sheet 8. When the spring sheet 8 is inserted into the preset groove 94, the clamping piece 81 is located outside the preset groove 94. During installation, the spring sheet 8 is pushed into the movable clamp head 21 by the tooling until the clamping piece 81 is clamped into the clamping groove. After that, the tooling can be pulled out.

[0036] Embodiment 4: A needle removal tool, see attached Fig.10 , which is used to remove the suture needle 63 from the buckle needle 62; the tooling is provided with a clamping groove 95 for clamping the pillow of the suture needle 63. When disassembling, the tooling is put outside the pliers head, and then the wrench 3 is pressed until the pillow of the suture needle 63 is pierced out and enters the clamping groove 95, and then the pressing block 73 is pressed downward to push the needle sleeve 71 to rotate downward and drive it, thereby driving the suture needle 63 to disengage from the buckle needle 62, and then the tooling is pulled outward to pull out the suture needle 63, and the disassembly of the suture needle 63 is completed.

[0037] Embodiment 5: A needle-loading tool, see attached Fig.11 , which is used to pass the suture needle 63 through the needle sleeve 71 and install it on the buckle needle 62; the tooling is provided with a clamping portion 96 that can clamp the suture needle. When installing the needle, first press the wrench 3 to move the buckle needle 62 outward to the farthest, and then push the suture needle 63 into the needle sleeve 71 through the tooling until the connecting block 621 on the buckle needle 62 is inserted into the connecting groove 631 of the suture needle 63, completing the installation of the suture needle 63.

[0038] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A two-stage pressing suturing gun, characterized in that: It comprises a housing (1); A connecting tube (2), the connecting tube (2) being fixedly connected to the front end of the housing (1), the front end of the connecting tube (2) being provided with a fixed clamp head (22) and a movable clamp head (21) constituting a clamp head, and a suture needle (63) capable of passing through the fixed clamp head (22) and the movable clamp head (21); A wrench (3), the wrench (3) being rotatably connected to the housing (1), the wrench (3) comprising an outer wrench (31) and an inner wrench (32), the outer wrench (31) being located outside the housing (1), the inner wrench (32) being located inside the housing (1), and the connection between the outer wrench (31) and the inner wrench (32) being rotatably connected to the housing (1); a trigger (4), one end of the trigger (4) being rotatably connected to the wrench (3), and the other end of the trigger (4) extending into the housing (1), and a slot (411) being provided on the trigger (4); A card block (412), the card block (412) being fixedly connected in the housing (1) and being in contact with a side of the trigger (4) where the card slot (411) is provided; A clamping control member (5), the clamping control member (5) is rotatably connected in the housing (1), the inner wrench (32) is provided with a connecting pin (321) for driving the clamping control member (5) to rotate, and the clamping control member (5) is used to drive the movable clamp head (21) to clamp on the fixed clamp head (22); and a needle push rod (6), the needle push rod (6) being rotatably connected in the housing (1) and used to drive the suture needle (63) to perform a suturing action, the needle push rod (6) being connected to the inner wrench (32) via a connecting rod (61), and the two ends of the connecting rod (61) being rotatably connected to the needle push rod (6) and the inner wrench (32) respectively; When the clamping slot (411) is located outside the housing (1), the outer wrench (31) is pressed, and the clamping control member (5) rotates along with the inner wrench (32) until the clamping block (412) is clamped in the clamping slot (411), and the fixed clamp head (22) and the movable clamp head (21) are clamped. When the trigger (4) is pulled to make the outer wrench (31) continue to be pressed and the clamping slot (411) is pushed into the housing (1), the clamping control member (5) stops swinging and the needle pusher rod (6) rotates along with the inner wrench (32) under the action of the connecting rod (61) to push the suture needle (63) out.

2. A two-stage pressing suturing gun according to claim 1, characterized in that: A buckle needle (62) is rotatably connected to one end of the top of the needle-pushing rod (6), and the buckle needle (62) is connected to a suture needle (63). When the top end of the needle-pushing rod (6) swings toward a side close to the buckle needle (62), the suture needle (63) is pushed out.

3. A two-stage pressing suturing gun according to claim 2, characterized in that: The connection point between the outer wrench (31) and the inner wrench (32) is located on the side of the needle push rod (6) close to the suture needle (63), and the connecting rod (61) is located between the needle push rod (6) and the connection point between the outer wrench (31) and the inner wrench (32); A first circle (33) is formed with the rotation axis of the wrench (3) as the center and the distance between the connection point of the connecting rod (61) and the inner wrench (32) to the rotation axis of the half shaft as the radius; a second circle (34) is formed with the rotation axis of the connecting rod (61) on the push pin rod (6) in the initial state when the wrench (3) is not pressed as the center and the distance between the connection point of the connecting rod (61) on the push pin rod (6) and the connection point of the connecting rod (61) on the inner wrench as the radius; the first circle (33) and the second circle (34) have two intersection points, namely a low intersection point (35) and a high intersection point (36); In an initial state when the wrench (3) is not pressed, the connection point between the connecting rod (61) and the inner wrench (32) is located at a low intersection (35); when the wrench (3) is pressed until the clamping block (412) is clamped into the clamping groove (411), the connection point between the connecting rod (61) and the inner wrench (32) is located at a high intersection (36).

4. The double-pressing suturing gun according to claim 1, characterized in that: A pull rod is hinged on the top of the clamping control member (5), and the other end of the pull rod is connected to the movable clamp head (21). When the clamping control member (5) drives the pull rod to slide in a direction away from the movable clamp head (21), the pull rod drives the movable clamp head (21) to be clamped on the fixed clamp head (22).

5. A two-stage pressing suturing gun according to claim 4, characterized in that: The clamping control member (5) is provided with a control groove, the connecting pin (321) is located in the control groove, and the groove wall of the control groove away from the movable clamp head (21) is provided as a control groove wall and is in close contact with the connecting pin (321); The control groove is configured as a plane segment (51) and an arc segment (52) located at the top of the plane segment (51); in an initial state where the wrench (3) is not pressed, the connecting pin (321) contacts a position close to the bottom of the plane segment (51); when the clamping block (412) is clamped into the clamping groove (411), the connecting pin (321) contacts a connection between the plane segment (51) and the arc segment (52), and at this time, the rotation arcs of the arc segment (52) and the connecting pin (321) overlap.

6. The double-pressing suturing gun according to claim 1, characterized in that: The trigger (4) comprises an extension section (41), the clamping slot (411) is arranged on the extension section (41), and one end of the extension section (41) away from the external wrench (31) extends into the housing (1); and a connecting section (42), the connecting section (42) being hinged on the outer wrench (31) and extending downwardly from the outer wrench (31); An unlocking spring (421) is provided between the connecting section (42) and the external wrench (31), the unlocking spring (421) is located above the hinge point between the connecting section (42) and the external wrench (31), and the unlocking spring (421) is in a compressed state to press the extension section (41) onto the clamping block (412).

7. The double-pressing suturing gun according to claim 1, characterized in that: It also includes a reset spring (11), one end of which is connected to the inner wrench (32) and the other end of which is fixedly connected to a reset pin in the housing (1).

8. The double-pressing suturing gun according to claim 2, characterized in that: The connecting tube (2) is provided with a needle sleeve (71) which is rotatably connected to the connecting tube (2); the suture needle (63) passes through the needle sleeve (71) and is connected to the buckle needle (62); a connecting groove (631) is provided at the top of one end where the suture needle (63) is connected to the buckle needle (62); a connecting block (621) is provided at the bottom of one end where the buckle needle (62) is connected to the suture needle (63); and the connecting block (621) can be snapped into the connecting groove (631); One end of the needle sleeve (71) is rotatably connected to the connecting tube (2), and an elastic member (72) is provided at the bottom of the other end. When the elastic member (72) is in a normal state, the connecting block (621) is inserted into the connecting groove (631).

9. The double-pressing suturing gun according to claim 8, characterized in that: It also includes a pressing block (73) which is rotatably connected to the housing (1). The pressing block (73) is located above the needle sleeve (71). The bottom of the pressing block (73) contacts the top of the needle sleeve (71) and the top of the pressing block (73) extends upward out of the housing (1).

10. The double-press suturing gun according to claim 1, characterized in that: The movable pliers (21) is detachably connected to a spring sheet (8); a front end of the movable pliers (21) is provided with a receiving groove (211) for receiving the spring sheet (8); a clamping groove is provided at the bottom of the receiving groove (211) on a side close to the connecting pipe (2); an end of the spring sheet (8) close to the clamping groove is fixedly connected to a clamping sheet (81); an end of the clamping sheet (81) close to the clamping groove is tilted upward and can be clamped into the clamping groove.

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