Endoscope needle holder with holding and releasing functions and application of endoscope needle holder in internal medicine operation

Abstract

The invention relates to the related technical field of medical needle holders, in particular to an endoscope needle holder with holding and releasing functions and application of the endoscope needle holder in an internal medicine operation. The endoscope needle holder with the holding and releasing functions comprises a grip, a first pipeline and a second pipeline, wherein the first pipeline is fixed to the grip, and the second pipeline is rotationally installed at the end, away from the grip, of the first pipeline. The endoscope needle holder with the holding and releasing functions further comprises a clamping mechanism, the clamping mechanism is installed at the end, away from the first pipeline, of the second pipeline and used for clamping a needle body, and a deflection driving mechanism is further arranged on the grip. The rotation driving mechanism is installed in the first pipeline and connected with the second pipeline, and the rotation driving mechanism is further connected with an elastic shifting mechanism installed on the grip; through mutual cooperation of all the mechanisms, the function of effectively adjusting the angle and the orientation of the needle body is achieved, so that the convenience of surgical operation is improved, and smooth development of the surgery is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field related to medical needle holders, in particular to a laparoscope needle holder with both holding and releasing functions and application thereof in internal medicine surgery. Background Art

[0002] The laparoscope needle holder is a key instrument used in laparoscopic surgery, mainly used for suturing and knotting operations. In internal medicine surgery, medical staff usually need to use the laparoscope and the suture needle to perform surgical treatment. During the treatment process, a special needle holder is needed to clamp the needle. The needle holder is an indispensable and important auxiliary tool in internal medicine surgery.

[0003] However, existing needle holders are usually designed in the shape of a clamp. When used during surgery, when the position of the needle needs to be adjusted, the medical staff's hands need to rotate accordingly. After long-term operation, the medical staff's hands will become tired. There are many inconveniences in use, and it is difficult to improve the medical staff's operating experience. Summary of the invention

[0004] The object of the present invention is to provide a laparoscope needle holder having both holding and releasing functions and its application in internal medicine surgery, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A laparoscope needle holder with both holding and releasing functions, comprising a handle, a first pipe fixed to the handle, and a second pipe rotatably mounted on an end of the first pipe away from the handle, wherein the handle, the first pipe and the second pipe form a gun body structure;

[0007] The laparoscope needle holder having both holding and releasing functions also includes:

[0008] A clamping mechanism is installed at one end of the second pipe away from the first pipe, and is used to clamp the needle body. The handle is also provided with a deflection drive mechanism, which sequentially penetrates the first pipe and the second pipe and connects the clamping mechanism. The deflection drive mechanism can drive the clamping mechanism to perform a deflection action on the second pipe to change the angle of the needle body.

[0009] The rotary drive mechanism is installed in the first pipe and connected to the second pipe. The rotary drive mechanism is also connected to an elastic toggle mechanism installed on the handle. The elastic toggle mechanism can prompt the rotary drive mechanism to drive the second pipe to rotate so as to change the direction of the needle body.

[0010] As a further solution of the present invention: the rotary drive mechanism comprises a first pipe and a third pipe rotatably mounted in the first pipe, and an end of the third pipe away from the first pipe is fixed to the second pipe through a plurality of support rods;

[0011] Wherein, the first pipe is connected to the elastic toggle mechanism, the first pipe is connected to the third pipe via a one-way transmission component, and the third pipe is also connected to an elastic positioning mechanism arranged inside the first pipe.

[0012] As a further solution of the present invention: the one-way transmission assembly includes a second pipe member slidably sleeved on the third pipe member toward one end of the first pipe member, the second pipe member abuts against the first pipe member, a tooth groove structure is provided between the two, two strip-shaped protrusions are formed on the outer wall of the third pipe member, two strip-shaped grooves are provided on the inner wall of the second pipe member, and the strip-shaped grooves are adapted to the strip-shaped protrusions;

[0013] Wherein, a second cylindrical spring is also sleeved on the outer circumference of the third pipe, one end of the second cylindrical spring is connected to the second pipe, and the other end is connected to a convex ring fixed on the outer wall of the third pipe.

[0014] As a further solution of the present invention: the tooth-groove structure comprises a plurality of driving teeth equidistantly arranged along the circumference of the first pipe member toward one end of the second pipe member and a plurality of grooves equidistantly arranged along the circumference of the second pipe member toward one end of the first pipe member;

[0015] Wherein, the groove body is adapted to the driving tooth, and a first abutting surface and a second abutting surface are formed in each of the groove bodies, the central axis of the second tube is on the first abutting surface, and the second abutting surface intersects with the central axis of the second tube.

[0016] As a further solution of the present invention: the elastic positioning mechanism comprises a guide ring fixed inside the first pipe, a slide rail is provided on the inner wall of the guide ring, and a plurality of sliders are slidably engaged in the slide rail, and each of the plurality of sliders is connected to the third pipe member through a group of elastic members;

[0017] The elastic member includes a guide cylinder fixed on the outer wall of the third tube and an internal rod slidably arranged in the guide cylinder, one end of the internal rod is fixedly connected to the slider, and the other end is fixed to a first truncated cone slidably arranged in the guide cylinder, and a fourth columnar spring sleeved on the outer circumference of the internal rod is also provided in the guide cylinder, and the two ends of the fourth columnar spring are respectively connected to the inner wall of the guide cylinder and the first truncated cone.

[0018] As a further solution of the present invention: a gap is reserved between the outer wall of the first pipe and the inner wall of the first pipe, the elastic toggle mechanism comprises an arc block slidably arranged in the gap, a toggle member fixed to the arc block, and an elastic connecting member connected to the toggle member, a convex column is fixedly arranged on the arc block, a sliding groove adapted to the convex column is arranged on the outer wall of the first pipe, the convex column extends into the sliding groove and is slidably connected to the first pipe, and the sliding groove is arranged along a spiral;

[0019] An assembly portion is formed on the outer wall of the first pipe, and two cylindrical chambers are arranged in the assembly portion. The elastic connecting member includes a pull rod slidably arranged in the cylindrical chamber and fixed to the toggle member, and one end of the pull rod away from the toggle member is fixed to a second cone slidably arranged in the cylindrical chamber, and a third cylindrical spring is also sleeved on the outer periphery of the pull rod, and the two ends of the third cylindrical spring are respectively connected to the inner wall of the cylindrical chamber and the second cone.

[0020] As a further solution of the present invention: the clamping mechanism includes a shell rotatably installed on the end of the second pipe away from the first pipe through an axle pin, a first clamping part fixed on the shell, and a second clamping part rotatably provided on the shell, a sleeve is slidably provided on the shell, and the sleeve is connected to the deflection drive mechanism.

[0021] As a further solution of the present invention: the deflection drive mechanism includes a pushing structure arranged in the second pipe and a threaded driving member installed on the handle, the threaded driving member includes a screw rod rotatably installed on the handle, a threaded sleeve sleeved on the screw rod and threadedly connected to the screw rod, and a push rod fixed to the threaded sleeve;

[0022] The push rod extends into the first pipe, passes through the second pipe and the third pipe, and is connected to the pushing structure. The first pipe is provided with a strip opening for the push rod to move.

[0023] As a further solution of the present invention: a ring body is fixedly provided on the inner wall of the second pipe, the pushing structure comprises a driven rod slidably connected to the ring body, and a connecting rod connecting one end of the driven rod away from the push rod and the sleeve, one end of the connecting rod is fixed to the driven rod, and the other end is hinged to the sleeve;

[0024] A boss is fixed to one end of the driven rod away from the connecting rod, and the boss abuts against the push rod. A first cylindrical spring is also sleeved on the outer periphery of the driven rod, and one end of the first cylindrical spring is connected to the boss, and the other end abuts against the ring body.

[0025] The laparoscope needle holder with both holding and releasing functions is used in internal medicine surgery.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The handle, the first pipe and the second pipe form a gun body structure, which is convenient for medical staff to hold and effectively improves the operating experience of medical staff;

[0028] When the angle of the needle body needs to be changed, the medical staff can control the deflection drive mechanism, which will move along the axial direction of the first pipe and the second pipe, thereby driving the clamping mechanism to perform a deflection action at the end of the second pipe away from the first pipe. Thus, the effective adjustment function of the needle body angle is realized, which is convenient for medical staff to insert the needle and improve the efficiency of the operation.

[0029] Secondly, when the direction of the needle body needs to be changed, the medical staff can reciprocately operate the elastic toggle mechanism. Each time the elastic toggle mechanism moves, it will drive the rotary drive mechanism to move, and the rotary drive mechanism will drive the second pipe to rotate. The second pipe can drive the clamping mechanism and the needle body to rotate in a circle, thereby realizing the function of adjusting the direction of the needle body, further improving the convenience of surgical operation, and facilitating the smooth progress of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a structural schematic diagram of an embodiment of a laparoscope needle holder having both holding and releasing functions.

[0031] Figure 2 The present invention is a schematic structural diagram from another angle of an embodiment of a laparoscope needle holder having both holding and releasing functions.

[0032] Figure 3 The figure is a schematic diagram of the internal structure of an embodiment of a laparoscope needle holder with both holding and releasing functions.

[0033] Figure 4 The schematic diagram is a structural diagram of another angle inside an embodiment of a laparoscope needle holder with both holding and releasing functions.

[0034] Figure 5 The present invention is a schematic structural diagram of another angle inside an embodiment of a laparoscope needle holder having both holding and releasing functions.

[0035] Figure 6 for Figure 3 A magnified view of the structure at center.

[0036] Figure 7 for Figure 4 A magnified view of the structure at point B.

[0037] Figure 8 for Figure 5 Enlarged view of the structure at C in the middle.

[0038] Fig. 9 The figure is an exploded view of the structure of a rotary drive mechanism in one embodiment of a laparoscope needle holder having both holding and releasing functions.

[0039] Fig.10 It is a structural schematic diagram of the rotary drive mechanism.

[0040] Fig.11 The present invention is a schematic structural diagram of an elastic toggle mechanism in an embodiment of a laparoscope needle holder having both holding and releasing functions.

[0041] Fig.12 The figure is an exploded view of the structure of an elastic positioning mechanism in one embodiment of a laparoscope needle holder having both holding and releasing functions.

[0042] In the figure: 1, handle; 2, first pipe; 3, second pipe; 301, shaft pin; 4, first clamping part; 5, second clamping part; 6, casing; 7, kit; 8, connecting rod; 9, driven rod; 901, boss; 10, ring body; 11, first cylindrical spring; 12, second cylindrical spring; 13, third cylindrical spring; 14, fourth cylindrical spring; 15, first pipe; 1501, slide groove; 16, second pipe; 1601, first stop Joint surface; 1602, second abutment surface; 17, third pipe fitting; 1701, convex ring; 1702, support rod; 1703, strip-shaped protrusion; 18, guide ring; 19, slider; 20, guide cylinder; 2001, first truncated cone; 21, built-in rod; 22, assembly part; 23, pull rod; 2301, second truncated cone; 24, toggle member; 25, arc block; 2501, convex column; 26, screw rod; 27, threaded sleeve; 28, push rod. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0045] See also Figure 1-Figure 12In an embodiment of the present invention, a laparoscope needle holder having both holding and releasing functions comprises a handle 1, a first pipe 2 fixed to the handle 1, and a second pipe 3 rotatably mounted on an end of the first pipe 2 away from the handle 1, and the handle 1, the first pipe 2 and the second pipe 3 form a gun body structure;

[0046] The laparoscope needle holder having both holding and releasing functions also includes:

[0047] A clamping mechanism is installed at one end of the second pipe 3 away from the first pipe 2, and is used to clamp the needle body. The handle 1 is also provided with a deflection driving mechanism, which sequentially penetrates the first pipe 2 and the second pipe 3 and connects the clamping mechanism. The deflection driving mechanism can drive the clamping mechanism to perform a deflection action on the second pipe 3 to change the angle of the needle body.

[0048] The rotary drive mechanism is installed in the first pipe 2 and connected to the second pipe 3. The rotary drive mechanism is also connected to an elastic toggle mechanism installed on the handle 1. The elastic toggle mechanism can prompt the rotary drive mechanism to drive the second pipe 3 to rotate so as to change the direction of the needle body.

[0049] Furthermore, in actual use, the needle body is clamped and fixed by the clamping mechanism, and the medical staff holds the handle 1 to insert the needle body into the treatment part of the patient to perform surgical treatment;

[0050] During the operation, when the angle of the needle body needs to be changed, the medical staff can operate the deflection drive mechanism, and the deflection drive mechanism will move along the axial direction of the first pipe 2 and the second pipe 3, thereby driving the clamping mechanism to perform a deflection action at the end of the second pipe 3 away from the first pipe 2, thereby achieving an effective adjustment function of the needle body angle, facilitating the medical staff to insert the needle and improving the efficiency of the operation;

[0051] Secondly, when the direction of the needle body needs to be changed, the medical staff can reciprocately operate the elastic toggle mechanism. Each time the elastic toggle mechanism moves, it will drive the rotary drive mechanism to move, and the rotary drive mechanism will drive the second pipe 3 to rotate. The second pipe 3 can drive the clamping mechanism and the needle body to rotate in a circle, thereby realizing the function of adjusting the direction of the needle body, further improving the convenience of surgical operations, and facilitating the smooth progress of the operation.

[0052] Please refer again Figure 6 , Fig. 9 as well as Fig.10The rotation drive mechanism includes a first pipe 15 and a third pipe 17 rotatably mounted in the first pipe 2, and one end of the third pipe 17 away from the first pipe 15 is fixed to the second pipe 3 through a plurality of support rods 1702. The first pipe 15 is connected to the elastic toggle mechanism, and the first pipe 15 and the third pipe 17 are connected through a one-way transmission component, and the third pipe 17 is also connected to an elastic positioning mechanism arranged inside the first pipe 2.

[0053] The one-way transmission assembly includes a second pipe 16 slidably sleeved on the third pipe 17 toward one end of the first pipe 15, the second pipe 16 abuts against the first pipe 15, and a tooth groove structure is provided between the two, two strip-shaped protrusions 1703 are formed on the outer wall of the third pipe 17, and two strip-shaped grooves are provided on the inner wall of the second pipe 16, and the strip-shaped grooves are adapted to the strip-shaped protrusions 1703. A second cylindrical spring 12 is also sleeved on the outer periphery of the third pipe 17, one end of the second cylindrical spring 12 is connected to the second pipe 16, and the other end is connected to a convex ring 1701 fixedly provided on the outer wall of the third pipe 17.

[0054] The tooth-groove structure includes a plurality of driving teeth equidistantly arranged along the circumference at one end of the first pipe 15 facing the second pipe 16, and a plurality of groove bodies equidistantly arranged along the circumference at one end of the second pipe 16 facing the first pipe 15. The groove bodies are adapted to the driving teeth, and a first abutting surface 1601 and a second abutting surface 1602 are formed in each of the groove bodies. The central axis of the second pipe 16 is on the first abutting surface 1601, and the second abutting surface 1602 intersects with the central axis of the second pipe 16.

[0055] When adjusting the direction of the needle body, each time the medical staff manipulates the elastic toggle mechanism to move once, the elastic toggle mechanism drives the first tube 15 to complete a forward and reverse reciprocating rotation. Specifically, when the first tube 15 rotates forward, the driving teeth of the first tube 15 facing the end of the second tube 16 will act on the first abutment surface 1601. Since the central axis of the second tube 16 is on the first abutment surface 1601, the first tube 15 can effectively transmit the second tube 16, so that the second tube 16 rotates synchronously. Correspondingly, the second tube 16 drives the third tube 17 to rotate through the strip groove and the strip protrusion 1703, and the third tube 17 drives the second pipe 3 to rotate through the plurality of support rods 1702, so that the direction of the needle body changes. When the first tube 15 rotates reversely, The driving tooth of the first tube 15 toward one end of the second tube 16 will act on the second abutment surface 1602. Since the second abutment surface 1602 intersects with the central axis of the second tube 16, and the elastic positioning mechanism supports the third tube 17, the rotational force required to drive the third tube 17 to rotate is relatively large. Therefore, the driving tooth will cause the second tube 16 to give way, and the second tube 16 slides on the third tube 17 toward the convex ring 1701, and the second cylindrical spring 12 is compressed. After the driving tooth corresponds to the groove body, the second cylindrical spring 12 drives the second tube 16 to slide away from the convex ring 1701, so that the driving tooth re-fits with the groove body. Therefore, the setting of the driving tooth and the groove body realizes the function of the first tube 15 to transmit the second tube 16 in one direction.

[0056] Please refer again Fig.12 The elastic positioning mechanism includes a guide ring 18 fixed to the inside of the first pipe 2, a slide rail is provided on the inner wall of the guide ring 18, and a plurality of sliders 19 are slidably engaged in the slide rail, and each of the plurality of sliders 19 is connected to the third pipe 17 through a group of elastic members; the elastic member includes a guide cylinder 20 fixed to the outer wall of the third pipe 17 and a built-in rod 21 slidably arranged in the guide cylinder 20, one end of the built-in rod 21 is fixedly connected to the slider 19, and the other end is fixed to a first truncated table 2001 slidably arranged in the guide cylinder 20, and a fourth columnar spring 14 is also provided in the guide cylinder 20 and is sleeved on the outer periphery of the built-in rod 21, and the two ends of the fourth columnar spring 14 are respectively connected to the inner wall of the guide cylinder 20 and the first truncated table 2001.

[0057] When the first tube 15 drives the third tube 17 to rotate through the second tube 16, the third tube 17 drives the slider 19 to slide in the slide rail on the inner wall of the guide ring 18 through the guide cylinder 20 and the built-in rod 21;

[0058] It should be emphasized that the fourth cylindrical spring 14 is in a compressed state, so that the built-in rod 21 has a certain pulling force on the slider 19, and the friction between the slider 19 and the guide ring 18 is increased. Therefore, the elastic positioning mechanism has a positioning effect on the third tube 17 and the second pipe 3, so that the rotational force required to drive the third tube 17 to rotate is larger, ensuring that when the driving teeth at the end of the first tube 15 act on the second abutment surface 1602, the second tube 16 can give way, avoiding the second tube 16 and the third tube 17 from rotating in the opposite direction following the first tube 15, thereby ensuring the effectiveness of adjusting the direction of the needle body.

[0059] Please refer again Fig.10 and Fig.11 A gap is reserved between the outer wall of the first pipe 15 and the inner wall of the first pipe 2, the elastic toggle mechanism includes an arc block 25 slidably arranged in the gap, a toggle member 24 fixed to the arc block 25, and an elastic connecting member connected to the toggle member 24, a convex column 2501 is fixedly arranged on the arc block 25, a sliding groove 1501 adapted to the convex column 2501 is arranged on the outer wall of the first pipe 15, the convex column 2501 extends into the sliding groove 1501 and is slidably connected to the first pipe 15, and the sliding groove 150 1 is arranged along a spiral; the outer wall of the first pipe 2 is formed with an assembly portion 22, and two cylindrical chambers are arranged in the assembly portion 22, and the elastic connecting member includes a pull rod 23 slidably arranged in the cylindrical chamber and fixed to the toggle member 24, and one end of the pull rod 23 away from the toggle member 24 is fixed to a second truncated cone 2301 slidably arranged in the cylindrical chamber, and the outer periphery of the pull rod 23 is also sleeved with a third cylindrical spring 13, and the two ends of the third cylindrical spring 13 are respectively connected to the inner wall of the cylindrical chamber and the second truncated cone 2301.

[0060] It should also be added that the toggle member 24 is fixed to the arc block 25 via a connecting column, and for this purpose, a strip-shaped through groove for the connecting column to move is further provided on the first pipe 2;

[0061] When in use, the medical staff holds the handle 1 and pulls the toggle piece 24 with their fingers, so that the toggle piece 24 moves toward the handle 1. Correspondingly, the pull rod 23 slides toward the outside of the cylindrical chamber, the third cylindrical spring 13 is compressed, and the arc block 25 moves with the toggle piece 24. The protrusion 2501 slides with the first tube 15 through the slide groove 1501, causing the first tube 15 to rotate forward. At this time, the driving tooth acts on the first abutment surface 1601, and the second tube 16 drives the third tube 17 and the second pipe 3 to rotate forward, and the needle body changes direction. Subsequently, the toggle piece 24 is released, the third cylindrical spring 13 rebounds, and the toggle piece 24 drives the arc block 25 to reset, and the first tube 15 rotates in the opposite direction. At this time, the driving tooth acts on the second abutment surface 1602, and the second tube 16, the third tube 17 and the second pipe 3 do not rotate in the opposite direction.

[0062] Please refer again Figure 8 The clamping mechanism includes a shell 6 rotatably mounted on the end of the second pipe 3 away from the first pipe 2 through an axle pin 301, a first clamping part 4 fixed on the shell 6, and a second clamping part 5 rotatably arranged on the shell 6, a sleeve 7 is slidably mounted on the shell 6, and the sleeve 7 is connected to the deflection drive mechanism.

[0063] In detail, during the operation, the clamping mechanism needs to maintain the clamping state of the needle body or release the needle body. To this end, the clamping mechanism has an opening and closing action, that is, the rotation of the second clamping part 5, and a signal receiver is provided in the shell 6 for receiving an external control signal to realize remote control of the rotation action of the second clamping part 5, so that the needle body has both holding and releasing functions.

[0064] Please refer again Figure 5 and Figure 6 The deflection driving mechanism includes a pushing structure arranged in the second pipe 3 and a threaded driving member installed on the handle 1, and the threaded driving member includes a screw rod 26 rotatably installed on the handle 1, a threaded sleeve 27 sleeved on the screw rod 26 and threadedly connected to the screw rod 26, and a push rod 28 fixed to the threaded sleeve 27;

[0065] The push rod 28 extends into the first pipe 15 , passes through the second pipe 16 and the third pipe 17 , and is connected to the pushing structure. The first pipe 2 is provided with a strip opening for the push rod 28 to move.

[0066] It should be added that, since the first tube member 15 reciprocates when the direction of the needle body is adjusted, in order to prevent the push rod 28 from affecting the rotation of the first tube member 15 , a through opening is further provided on the first tube member 15 .

[0067] A ring body 10 is fixedly provided on the inner wall of the second pipe 3, and the pushing structure includes a driven rod 9 slidably connected to the ring body 10, and a connecting rod 8 connecting one end of the driven rod 9 away from the push rod 28 and the sleeve 7, one end of the connecting rod 8 is fixed to the driven rod 9, and the other end is hinged to the sleeve 7;

[0068] Among them, a boss 901 is fixed to one end of the driven rod 9 away from the connecting rod 8, and the boss 901 abuts against the push rod 28. The outer periphery of the driven rod 9 is also sleeved with a first cylindrical spring 11, one end of the first cylindrical spring 11 is connected to the boss 901, and the other end abuts against the ring body 10.

[0069] When the angle of the needle body needs to be adjusted, the medical staff can simply rotate the screw rod 26, that is, when the screw rod 26 rotates, the threaded sleeve 27 is threadedly matched therewith, and the threaded sleeve 27 drives the push rod 28 to move along the axial direction of the first pipe 15, the second pipe 16 and the third pipe 17, and the push rod 28 moves closer to or away from the ring body 10, so that the driven rod 9 moves along the axial direction of the second pipe 3 in the second pipe 3, and the first cylindrical spring 11 is compressed or rebounded. Accordingly, the driven rod 9 can drive the kit 7 to slide on the sleeve shell 6 through the connecting rod 8, causing the sleeve shell 6 to deflect, thereby realizing the effective adjustment function of the needle body angle, facilitating the medical staff to insert the needle and improving the operation efficiency;

[0070] The movement of the push rod 28 is driven by the threaded fit between the screw rod 26 and the threaded sleeve 27. The threaded fit has the characteristics of high precision and stability, so the accuracy of the needle body direction adjustment can be effectively guaranteed.

[0071] Secondly, it should be noted that the elastic potential energy of the first cylindrical spring 11 is set relatively large, so it can ensure the stability of the support of the housing 6 by the driven rod 9, and avoid the displacement of the housing 6 due to the force on the needle body during the suturing process.

[0072] As another embodiment of the present invention, application of the laparoscope needle holder having both holding and releasing functions in internal medicine surgery is also proposed.

[0073] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0074] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laparoscope needle holder with both holding and releasing functions, comprising a handle (1), a first pipe (2) fixed to the handle (1), and a second pipe (3) rotatably mounted on an end of the first pipe (2) away from the handle (1), wherein the handle (1), the first pipe (2) and the second pipe (3) form a gun body structure; It is characterized in that Also includes: a clamping mechanism, mounted on an end of the second pipe (3) away from the first pipe (2), for clamping the needle body; the handle (1) is also provided with a deflection drive mechanism, the deflection drive mechanism sequentially passes through the first pipe (2) and the second pipe (3) and is connected to the clamping mechanism; the deflection drive mechanism can drive the clamping mechanism to perform a deflection action on the second pipe (3) so as to change the angle of the needle body; A rotary drive mechanism is installed in the first pipe (2) and connected to the second pipe (3). The rotary drive mechanism is also connected to an elastic toggle mechanism installed on the handle (1). The elastic toggle mechanism can prompt the rotary drive mechanism to drive the second pipe (3) to rotate so as to change the direction of the needle body.

2. A laparoscope needle holder with both holding and releasing functions according to claim 1, characterized in that: The rotary drive mechanism comprises a first pipe member (15) and a third pipe member (17) rotatably mounted in the first pipe (2); an end of the third pipe member (17) away from the first pipe member (15) is fixed to the second pipe (3) via a plurality of support rods (1702); The first pipe (15) is connected to the elastic toggle mechanism, the first pipe (15) is connected to the third pipe (17) via a one-way transmission component, and the third pipe (17) is also connected to an elastic positioning mechanism arranged inside the first pipe (2).

3. A laparoscope needle holder with both holding and releasing functions according to claim 2, characterized in that: The one-way transmission assembly comprises a second pipe member (16) slidably sleeved on the third pipe member (17) toward one end of the first pipe member (15), the second pipe member (16) abuts against the first pipe member (15), and a tooth groove structure is provided between the two, two strip-shaped protrusions (1703) are formed on the outer wall of the third pipe member (17), and two strip-shaped grooves are provided on the inner wall of the second pipe member (16), and the strip-shaped grooves are adapted to the strip-shaped protrusions (1703); Wherein, a second cylindrical spring (12) is also sleeved on the outer periphery of the third pipe fitting (17), one end of the second cylindrical spring (12) is connected to the second pipe fitting (16), and the other end is connected to a convex ring (1701) fixed on the outer wall of the third pipe fitting (17).

4. A laparoscope needle holder with both holding and releasing functions according to claim 3, characterized in that: The tooth-groove structure comprises a plurality of driving teeth equidistantly arranged along the circumference of the first pipe member (15) toward one end of the second pipe member (16), and a plurality of groove bodies equidistantly arranged along the circumference of the second pipe member (16) toward one end of the first pipe member (15); Wherein, the groove body is adapted to the driving tooth, and a first abutment surface (1601) and a second abutment surface (1602) are formed in each of the groove bodies, the central axis of the second tube (16) is on the first abutment surface (1601), and the second abutment surface (1602) intersects with the central axis of the second tube (16).

5. The laparoscope needle holder with both holding and releasing functions according to claim 2, characterized in that: The elastic positioning mechanism comprises a guide ring (18) fixed inside the first pipe (2), a slide rail is provided on the inner wall of the guide ring (18), and a plurality of sliders (19) are slidably engaged in the slide rail, and each of the plurality of sliders (19) is connected to the third pipe member (17) via a group of elastic members; The elastic member comprises a guide cylinder (20) fixed on the outer wall of the third tube (17) and an internal rod (21) slidably arranged in the guide cylinder (20); one end of the internal rod (21) is fixedly connected to the slider (19), and the other end is fixed to a first truncated table (2001) slidably arranged in the guide cylinder (20); a fourth columnar spring (14) sleeved on the outer circumference of the internal rod (21) is further arranged in the guide cylinder (20); two ends of the fourth columnar spring (14) are respectively connected to the inner wall of the guide cylinder (20) and the first truncated table (2001).

6. A laparoscope needle holder with both holding and releasing functions according to claim 2, characterized in that: A gap is reserved between the outer wall of the first pipe (15) and the inner wall of the first pipe (2); the elastic toggle mechanism comprises an arc block (25) slidably arranged in the gap, a toggle member (24) fixed to the arc block (25), and an elastic connecting member connected to the toggle member (24); a convex column (2501) is fixedly arranged on the arc block (25); a sliding groove (1501) adapted to the convex column (2501) is arranged on the outer wall of the first pipe (15); the convex column (2501) extends into the sliding groove (1501) and is slidably connected to the first pipe (15); and the sliding groove (1501) is arranged along a spiral; The outer wall of the first pipe (2) is formed with an assembly portion (22), and two cylindrical chambers are arranged in the assembly portion (22). The elastic connecting member includes a pull rod (23) slidably arranged in the cylindrical chamber and fixed to the toggle member (24), and one end of the pull rod (23) away from the toggle member (24) is fixed to a second cone (2301) slidably arranged in the cylindrical chamber, and a third cylindrical spring (13) is also sleeved on the outer periphery of the pull rod (23), and the two ends of the third cylindrical spring (13) are respectively connected to the inner wall of the cylindrical chamber and the second cone (2301).

7. A laparoscope needle holder with both holding and releasing functions according to claim 2, characterized in that: The clamping mechanism comprises a casing (6) rotatably mounted on an end of the second pipe (3) away from the first pipe (2) via an axle pin (301), a first clamping portion (4) fixed to the casing (6), and a second clamping portion (5) rotatably mounted on the casing (6); a sleeve (7) is slidably mounted on the casing (6), and the sleeve (7) is connected to the deflection drive mechanism.

8. The laparoscope needle holder with both holding and releasing functions according to claim 7, characterized in that: The deflection drive mechanism comprises a pushing structure arranged in the second pipe (3) and a threaded driving member installed on the handle (1), the threaded driving member comprises a screw rod (26) rotatably installed on the handle (1), a threaded sleeve (27) sleeved on the screw rod (26) and threadedly connected to the screw rod (26), and a push rod (28) fixed to the threaded sleeve (27); The push rod (28) extends into the first pipe (15), passes through the second pipe (16) and the third pipe (17), and is connected to the pushing structure. The first pipe (2) is provided with a strip opening for the push rod (28) to move.

9. A laparoscope needle holder with both holding and releasing functions according to claim 8, characterized in that: A ring body (10) is fixedly provided on the inner wall of the second pipe (3); the pushing structure comprises a driven rod (9) slidably connected to the ring body (10), and a connecting rod (8) connecting one end of the driven rod (9) away from the push rod (28) and the sleeve (7); one end of the connecting rod (8) is fixed to the driven rod (9), and the other end is hinged to the sleeve (7); A boss (901) is fixed to one end of the driven rod (9) away from the connecting rod (8), and the boss (901) abuts against the push rod (28). A first cylindrical spring (11) is also sleeved on the outer periphery of the driven rod (9), and one end of the first cylindrical spring (11) is connected to the boss (901), and the other end abuts against the ring body (10).

10. Use of a laparoscope needle holder with both holding and releasing functions as described in any one of claims 1 to 9 in internal medicine surgery.

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