Steel wire hook for orthopedic threading device

Abstract

The utility model relates to the technical field of threading devices, in particular to a steel wire hook for an orthopedic threading device, which comprises a hook body and a support rod fixedly mounted on one side of the hook body, two groups of elastic rings are fixedly mounted on the side wall of an inner cavity of the hook body, and a plurality of groups of raised strips are fixedly mounted on the side walls of inner cavities of the two groups of elastic rings. Air bags are fixedly mounted on the side walls of the inner cavities of the two groups of elastic rings; the air bag in the elastic ring is inflated and deflated through the driving part, so that the elastic ring is expanded and contracted, the steel wire can be transiently fixed in an auxiliary manner when the tension, angle and the like of the steel wire are adjusted in cooperation with a protruding strip in the elastic ring, and the steel wire can be adjusted by rotating a knob according to the actual adjusting condition. The steel wire fixing device is convenient to operate and use, and meanwhile, the conditions of displacement looseness, insufficient traction force and the like of the steel wire can be effectively reduced when tension, angle and the like are adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of threading device, specifically relates to a steel wire hook for orthopedic threading device. BACKGROUND

[0002] The steel wire hook for orthopedic threading device is a medical instrument, which is usually used in fracture treatment or surgical operation, especially in orthopedic surgery for fixing fracture site or traction of skeleton. Its main function is to guide steel wire or other traction material through the threading device, so as to fix the skeleton and help fracture healing. In order to facilitate the traction of the steel wire, the hook is generally hollow. The steel wire passes through the inside of the hook, and then the tension of the steel wire is stabilized by using the hook to ensure the proper traction or fixation of the fracture site. After adjusting the angle and proper tension, the steel wire can be fixed by screwing or directly twisting the steel wire on the threading device. However, before the steel wire is fixed, the steel wire is still movable in the hook when the tension and angle are adjusted, which may cause displacement and insufficient traction, thereby affecting the treatment effect.

[0003] Therefore, the steel wire hook for orthopedic threading device is provided. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the steel wire hook for orthopedic threading device can effectively solve the problem of displacement, insufficient traction and other situations when the tension and angle of the steel wire are adjusted before being fixed, thereby affecting the treatment effect.

[0005] To achieve the above purpose, the utility model discloses the following technical scheme:

[0006] The utility model provides a steel wire hook for orthopedic threading device, including hook body and the support rod of fixed installation of one side of hook body, and the handle of fixed installation of the one end of support rod away from hook body, the inner chamber side wall of hook body is fixedly installed with two groups of elastic ring, the inner chamber side wall of two groups of elastic ring all is fixedly installed with a plurality of groups of convex strip, and the inner chamber side wall of two groups of elastic ring still all is fixedly installed with gasbag, the surface of two groups of gasbags is fixedly installed with connecting pipe spare, the one end of connecting pipe spare away from gasbag is fixed and passes through elastic ring and extends to the inside of support rod,

[0007] Wherein, the one end of connecting pipe spare extending to the inside of support rod is equipped with drive part, and drive part sets up in the inside of support rod, and through drive part can inflate and exhaust to gasbag inside.

[0008] Further, the drive part includes a piston cylinder fixedly installed at the one end of the connecting pipe extending into the support rod, and the piston cylinder is fixedly installed on the inner chamber side wall of the support rod.

[0009] Further, the inner cavity side wall of the piston cylinder is sleeved with a sealing piston, one side of the sealing piston is fixedly installed with a push-pull rod, and one end of the push-pull rod away from the sealing piston is fixedly installed with a threaded sleeve.

[0010] Further, the inner cavity side wall of the threaded sleeve is threadedly connected with a lead screw, one end of the lead screw is fixedly installed with a connecting rod, and one end of the connecting rod away from the lead screw is rotatably arranged through the support rod.

[0011] Further, one end of the connecting rod rotatably arranged through the support rod is fixedly installed with a gear, and one side of the gear away from the support rod is rotatably arranged at one end of the handle close to the support rod.

[0012] Further, the surface of the gear is engaged with a gear ring, the surface of the gear ring is fixedly installed with a knob, and the surface of the knob is rotatably arranged on the inner cavity side wall of the handle.

[0013] Compared with the known prior art, the technical scheme of the utility model has the following beneficial effects:

[0014] The driving member arranged in the support rod can inflate and deflate the air bag in the elastic ring, so that the elastic ring can expand and contract, and the protruding strip in the elastic ring can temporarily assist in fixing the steel wire when adjusting the tension angle of the steel wire, and the expansion and contraction of the elastic ring can be controlled by rotating the knob according to the actual adjustment condition, so that the steel wire can be loosened and simply fixed, the operation is convenient, and the displacement and loosening of the steel wire and the insufficient traction force can be effectively reduced when adjusting the tension angle. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0016] Figure 1 It is the first perspective structure schematic diagram of the utility model;

[0017] Figure 2 It is the support rod partial cross-sectional structure schematic diagram of the utility model;

[0018] Figure 3 It is the piston cylinder and the hook body partial cross-sectional structure schematic diagram of the utility model;

[0019] Figure 4 It is the elastic ring partial cross-sectional structure schematic diagram of the utility model;

[0020] Figure 5 Figure is the partial structure diagram of the gear and the tooth ring and the related components of the utility model.

[0021] The reference signs in the figure respectively represent: 1, hook body; 2, handle; 3, support rod; 4, knob; 5, piston cylinder; 6, screw rod; 7, threaded sleeve; 8, connecting rod; 9, push-pull rod; 10, sealing piston; 11, connecting pipe fitting; 12, elastic ring; 13, air bag; 14, protruding strip; 15, gear; 16, tooth ring. DETAILED DESCRIPTION

[0022] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] The utility model will be further described below in combination with embodiments.

[0024] A steel wire hook for orthopedic threading device, including hook body 1 and the support rod 3 of fixed installation on one side of hook body 1, and the handle 2 of fixed installation on the end of support rod 3 away from hook body 1, the inner cavity side wall of hook body 1 is fixedly installed with two sets of elastic rings 12, the inner cavity side wall of two sets of elastic rings 12 is fixedly installed with several groups of protruding strips 14, and the inner cavity side wall of two sets of elastic rings 12 is also fixedly installed with air bags 13, the surface of two sets of air bags 13 is fixedly installed with connecting pipe fittings 11, one end of connecting pipe fittings 11 away from air bag 13 is fixed through elastic ring 12 and extends to the inside of support rod 3, wherein, the end of connecting pipe fittings 11 extending to the inside of support rod 3 is provided with a driving element, and the driving element is arranged in the inside of support rod 3, the inside of air bag 13 can be inflated and exhausted by the driving element,

[0025] Specifically, first, the steel wire can be threaded through the hook body 1, then the position of the steel wire is adjusted, the patient's fracture site is fixed or pulled, and the tension and angle of the steel wire can be adjusted according to the actual treatment condition. In the adjustment process, the air bags 13 in the two sets of elastic rings 12 can be inflated or exhausted by the driving element in the inside of the support rod 3 cooperating with the connecting pipe fittings 11. When inflated, the two sets of air bags 13 can be inflated, so that the elastic rings 12 on the surface of the two sets of air bags 13 are deformed, the inner diameter can be reduced, and the steel wire can be simply fixed by cooperating with the multiple protruding strips 14 on the inner cavity side wall. When the tension and angle of the steel wire are adjusted, displacement loosening, insufficient traction and other conditions can occur.

[0026] Specific, drive includes the connection pipe 11 extends to the inside of the support rod 3 one end fixed installation of the piston cylinder 5, and the piston cylinder 5 is fixedly installed in the inner cavity side wall of the support rod 3, the inner cavity side wall of the piston cylinder 5 is sleeved with the sealing piston 10, one side of the sealing piston 10 is fixedly installed with the push-pull rod 9, the end away from the sealing piston 10 of the push-pull rod 9 is fixedly installed with the threaded sleeve 7, the inner cavity side wall of the threaded sleeve 7 is threadedly connected with the lead screw 6, one end of the lead screw 6 is rotatably installed in the inner cavity side wall of the support rod 3, and the other end of the lead screw 6 is fixedly installed with the connecting rod 8, the end away from the lead screw 6 of the connecting rod 8 is rotatably through the support rod 3, and the end of the connecting rod 8 through the support rod 3 is fixedly installed with the gear 15, the side away from the support rod 3 of the gear 15 is rotatably installed in the end of the handle 2 close to the support rod 3, the surface of the gear 15 is engaged with the gear ring 16, the surface of the gear ring 16 is fixedly installed with the knob 4, and the surface of the knob 4 is rotatably installed in the inner cavity side wall of the handle 2;

[0027] Specific, by rotating the knob 4 rotatably installed inside the handle 2, the gear ring 16 can be driven to rotate, and then the gear 15 engaged with the gear ring 16 can be used to drive the connecting rod 8 and the lead screw 6 fixedly installed at one end of the connecting rod 8 to rotate, because the push-pull rod 9 is limited by the piston cylinder 5 and the sealing piston 10, when the lead screw 6 rotates, the push-pull rod 9 can be driven to move linearly through the threaded sleeve 7, driving the sealing piston 10 to move in the piston cylinder 5, cooperating with the connection pipe 11 fixedly installed at one end of the piston cylinder 5, the inflation and suction of the two groups of air bags 13 can be completed.

[0028] The working principle of the utility model is: first, the steel wire can be threaded through the hook body 1, then the position of the steel wire is adjusted, the patient's fracture site is fixed or pulled, and the tension and angle of the steel wire can be adjusted according to the actual treatment condition, in the adjusting process, by rotating the knob 4 rotatably installed inside the handle 2, the gear ring 16 can be driven to rotate, and then the gear 15 engaged with the gear ring 16 can be used to drive the connecting rod 8 and the lead screw 6 fixedly installed at one end of the connecting rod 8 to rotate, because the push-pull rod 9 is limited by the piston cylinder 5 and the sealing piston 10, when the lead screw 6 rotates, the push-pull rod 9 can be driven to move linearly through the threaded sleeve 7, driving the sealing piston 10 to move in the piston cylinder 5, cooperating with the connection pipe 11 fixedly installed at one end of the piston cylinder 5, the inflation and suction of the two groups of air bags 13 can be completed.

[0029] The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. An orthopedic wire passer, characterized by, The utility model relates to a hook body (1) and the support rod (3) of one side fixed mounting of hook body (1), and handle (2) is fixedly installed in the end of support rod (3) away from hook body (1), the inner chamber lateral wall of hook body (1) is fixedly installed with two groups of elastic ring (12), the inner chamber lateral wall of two groups of elastic ring (12) is fixedly installed with several groups of convex strip (14) all, and the inner chamber lateral wall of two groups of elastic ring (12) still all fixedly installs air bag (13), the surface of two groups of air bag (13) is fixedly installed with connecting pipe spare (11), and the one end of connecting pipe spare (11) away from air bag (13) is fixed through elastic ring (12) and extends to the inside of support rod (3); Wherein, the one end of connecting pipe spare (11) extending to the inside of support rod (3) is equipped with drive part, and drive part sets up in the inside of support rod (3), and through drive part, the inside of air bag (13) can be inflated and exhaust. Drive part includes the piston cylinder (5) of connecting pipe spare (11) extending to the one end fixed installation of support rod (3), and piston cylinder (5) is fixedly installed in the inner chamber lateral wall of support rod (3).

2. The steel wire hook for an orthopedic introducer according to claim 1, wherein The inner chamber lateral wall of piston cylinder (5) is sleeved with sealing piston (10), and one side of sealing piston (10) is fixedly installed with push-pull rod (9), and the one end of push-pull rod (9) away from sealing piston (10) is fixedly installed with threaded sleeve (7).

3. The steel wire hook for an orthopedic introducer according to claim 2, wherein The inner chamber lateral wall of threaded sleeve (7) is threadedly connected with lead screw (6), and the other end of lead screw (6) is fixedly installed with connecting rod (8), and the one end of connecting rod (8) away from lead screw (6) is rotatably through support rod (3).

4. The steel wire hook for an orthopedic introducer according to claim 3, wherein The one end of connecting rod (8) through support rod (3) is fixedly installed with gear (15), and the one side of gear (15) away from support rod (3) is rotatably installed in the one end of handle (2) close to support rod (3).

5. The steel wire hook for an orthopedic introducer according to claim 4, wherein The surface of gear (15) is engaged with the connection of gear ring (16), and the surface of gear ring (16) is fixedly installed with knob (4), and the surface of knob (4) is rotatably installed in the inner chamber lateral wall of handle (2).

6. The steel wire hook for an orthopedic introducer according to claim 5, wherein ​

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