CN212913346U - Orthopaedic nail locking device - Google Patents

Abstract

The utility model provides an orthopedics is whole to reply and is locked nail ware, including the connecting seat, the sliding seat, the screw rod, lead the cylinder, lock pin fin and centre gripping subassembly, the sliding seat includes the connecting rod of X type, the upper and lower end of connecting rod is provided with a pair of first rod cover and a pair of second rod cover respectively, the centre gripping subassembly sets up in first rod cover one side, the centre gripping subassembly includes the pipe box, press from both sides tight reed, the supporting rod, a spring, adapter sleeve and regulation pole, the inner wall upside of pipe box is provided with a pair of tight reed of the central line direction arch camber of leading the cylinder towards, the supporting rod is V type and its opening towards the guide cylinder body, the supporting rod, the adapter sleeve connects gradually with the regulation pole, the spring sets up. The device increases the balance capability and the movement stability of the movable seat and the guide column body by increasing the connecting nodes of the movable seat, the screw and the guide column body; utilize the centre gripping subassembly to provide the shock attenuation protection effect for the guide pillar body, the clamping performance is good, and the utilization ratio is higher, reasonable in design, simple structure are fit for extensive the popularization.

Description

Orthopaedic nail locking device

Technical Field

The utility model belongs to the technical field of medical equipment, especially, relate to an orthopedics is whole to reply and is locked nail ware.

Background

In the treatment of fracture reduction, generally adopt bone nail and lock nail mechanism more, the cooperation orthopedics external fixation frame uses, and this bone nail and lock nail mechanism's function is mainly, is hit into the skeleton with the bone nail, then locks the bone nail on the mount with lock nail mechanism to reach the purpose of fixed skeleton.

In the prior art, patent CN201920078538.2 discloses an orthopedics restoration lock nail ware, relates to medical instrument technical field, this orthopedics restoration lock nail ware, including the sliding seat, the inside fixedly connected with damping of sliding seat adds the cover admittedly, and the cylinder is led to the inside fixedly connected with that the damping adds the cover, leads the bottom of the laminating connection first lock ring of top of cylinder, the top of the bottom fixed connection second lock ring of guide pillar body, the one end of the equal fixed connection rubber column in top both ends of first lock ring, the bottom of the top fixed connection damping piece of first lock ring. This orthopedics restoration lock nail ware can guarantee the fixed of leading the cylinder through first lock ring and second lock ring, and the surface that first lock ring and second lock ring closed is comparatively crude, has increased the fastness of the guide pillar body, prevents to lead the cylinder and takes place the accuracy that the displacement influences fracture end adjustment counterpoint when using, influences the use of lock nail ware, can reduce the vibration that leads the cylinder and receive when using through damping piece and rubber column. The device has the problems that firstly, the movable seat has short span on the screw rod or the guide post body, the moving stability is poor, the fixing quality of the lock nail is not ensured, and the problem of head warping is easy to occur, so that the fixing difficulty of the lock nail is increased; secondly, the rubber column in the vibration damping reinforcing sleeve has poor elastic recovery capability, low stability and short service life; and thirdly, the guide post body is clamped by adopting a buckling ring, the diameter of the inner ring of the buckling ring must be consistent with that of the guide post body, otherwise, the stability of the guide post body after locking is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

The utility model provides a nail locking device for orthopedics department, which has the advantages of reasonable design, simple structure, higher stability, good fixing performance, longer service life and higher utilization rate.

In order to achieve the above object, the utility model adopts the technical scheme that, the utility model provides an orthopedics is whole to restore lock nail ware, including connecting seat, sliding seat, screw rod, guide cylinder and lock nail head, the top of connecting seat is provided with the connecting hole, the connecting seat passes through the screw rod and is connected with the sliding seat, it sets up inside the sliding seat to lead the cylinder, the lock nail head sets up the tip at the guide cylinder, the sliding seat includes the connecting rod of X type, the upper end interval of connecting rod is greater than the lower extreme interval, the upper and lower end of connecting rod is provided with a pair of first rod cover and a pair of second rod cover respectively, first rod cover is connected with the screw rod is concentric, second rod cover is connected with the guide cylinder is concentric, every second rod cover is provided with the centre gripping subassembly that is used for centre gripping guide cylinder in its opposite side with another second rod cover, the centre gripping subassembly includes the pipe box, The clamping device comprises clamping reeds, clamping rods, a spring, a connecting sleeve and an adjusting rod, wherein a pair of clamping reeds is arranged on the upper side of the inner wall of the pipe sleeve, each clamping reed is arched and arches towards the direction of the central line of the guide pillar body, each clamping rod is V-shaped, the opening of each clamping rod faces towards the guide pillar body, the connecting sleeve is arranged at the bottom of each clamping rod, the bottom of each connecting sleeve is in threaded connection with the top of the adjusting rod, and the spring is arranged between the connecting sleeve and the adjusting rod.

Preferably, the inner wall of the pipe sleeve is provided with a spring groove for placing the clamping spring and a spring groove for placing the spring.

Preferably, the concave side of the clamping spring is provided with a secondary spring opposite to the arching direction of the clamping spring.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the utility model provides an orthopedic reduction nail locking device, which increases the balance capability and the movement stability of a movable seat and a guide cylinder body by increasing the connecting nodes of the movable seat, a screw rod and the guide cylinder body; utilize the centre gripping subassembly to provide the shock attenuation protection effect for the guide pillar body, the clamping performance is good and elastic recovery ability is better, and the supporting rod can be stably connected with the guide pillar body of difference moreover, and stability is better, and the utilization ratio is higher. The utility model relates to a rationally, simple structure, be fit for extensive popularization.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of an orthopedic reduction nail locking device provided by an embodiment;

FIG. 2 is a front view of a clamping assembly provided by an embodiment;

FIG. 3 is a side view of a clamping assembly provided by an embodiment;

in the above figures, 1, a connecting seat; 2. a movable seat; 21. a connecting rod; 22. a first rod sleeve; 23. a second rod sleeve; 3. a screw; 4. a guide cylinder; 5. locking the nail head; 6. a clamping assembly; 61. pipe sleeve; 62. clamping the reed; 63. a clamping rod; 64. a spring; 65. connecting sleeves; 66. adjusting a rod; 67. a reed groove; 68. a spring slot; 69. and (5) a secondary reed.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment, as shown in fig. 1, fig. 2 and fig. 3, the utility model provides an orthopedics is whole to restore lock nail ware, including connecting seat 1, sliding seat 2, screw rod 3, guide pillar body 4 and lock pin head 5, the top of connecting seat 1 is provided with the connecting hole, connecting seat 1 passes through screw rod 3 and is connected with sliding seat 2, and guide pillar body 4 sets up inside sliding seat 2, and lock pin head 5 sets up the tip at guide pillar body 4. The structure of the connecting seat 1, the guide pillar 4, the screw 3 and the locking pin head 5 is the prior art, and the description of this embodiment is omitted. The utility model discloses a key is to the structure of sliding seat is provided and is improved to a centre gripping subassembly that has elasticity clamping capacity is provided, with stability and the utilization ratio of this device at the fixed lock nail in-process that improves.

Specifically, the utility model provides a sliding seat 2 includes the connecting rod 21 of X type, the upper end interval of connecting rod 21 is greater than the lower extreme interval, the upper and lower end of connecting rod 21 is provided with a pair of first rod cover 22 and a pair of second rod cover 23 respectively, first rod cover 21 is connected with screw rod 3 is concentric, second rod cover 22 is connected with guide pillar body 4 is concentric, each second rod cover is provided with the centre gripping subassembly 6 that is used for centre gripping guide pillar body 4 on its opposite side with another second rod cover, centre gripping subassembly 6 includes pipe box 61, clamping reed 62, clamping rod 63, spring 64, adapter sleeve 65 and regulation pole 66, the inner wall upside of pipe box 61 is provided with a pair of clamping reed 62, clamping reed 62 is the arch and rises towards the central line direction of guide pillar body 4 and presss from both sides, rod 63 is the V type and its opening towards guide pillar body 4, adapter sleeve 65 sets up in the bottom of clamping rod 63, the bottom of adapter sleeve 65 and the top threaded connection of regulation pole 66, the spring 64 is arranged between the connecting sleeve 65 and the adjusting lever 66. Wherein, the upper end span of connecting rod 21 is little can guarantee that it has sufficient accommodation space between the bottom of screw rod 3 and connecting seat 1, and the lower extreme span of connecting rod 21 can form longer connection system rather than the upper end greatly, increased moreover with connecting seat 1, guide pillar body 4's connected node, thereby improved the mobility stability of sliding seat 2 on screw rod 3, guarantee moreover that sliding seat 2 has higher balancing power with the stationary phase of guide pillar body 4, moreover, the steam generator is simple in structure, and the practicality is higher. Meanwhile, the movable seat 2 of the device adopts a structure of four rod sleeves, so that the connection requirement is ensured, the volume of parts can be reasonably compressed, the flexibility is good, and the operability is high

The clamping assembly 6 in the device has an elastic clamping effect. The height of the connecting sleeve 65 and the clamping rod 63 in the pipe sleeve can be changed by changing the height position of the adjusting rod 66, the spring 64 plays a balancing role between the connecting sleeve 65 and the adjusting rod 66, and particularly before the guide post body 4 does not extend into the clamping assembly 6, the spring 64 can stably pull the connecting sleeve 65 towards the direction of the adjusting rod 66, so that the guide post body 4 can smoothly extend into the pipe sleeve 61. The clamping rod 63 adopts a V-shaped structure to effectively ensure that the clamping rod and the guide post body always have two supporting points, although the guide post body 4 with different diameters is adopted, the device can still be directly put into use, in addition, two supporting points provided by two clamping reeds 62 in the clamping assembly 6 form a clamping system of the guide post body 4 in the pipe sleeve 61, especially, the clamping spring 62 can provide reasonable adjusting allowance for upward movement of the guide post body, the elastic recovery capability is better, and the connection stability of the medical lock pin on the human body is favorably ensured.

In order to improve the job stabilization nature of centre gripping subassembly, the utility model discloses be provided with the spring groove 68 that is used for placing the reed groove 67 of clamping reed and is used for placing the spring on the inner wall of pipe box 61, clamping reed 62 can adopt the form of joint to connect in reed groove 67, and the available fix with screw of its tip is at the pipe box 61 inner wall moreover, and spring groove 68 then provides reasonable installation space in order to guarantee that it plays support and connection effect at the pipe box inner wall for spring 64's setting.

Further, the present invention is provided with an auxiliary spring piece 69 having an opposite arching direction to the concave side of the clamping spring piece 62. Auxiliary spring 69 can support clamping spring 62, improving its elastic recovery ability, preventing it from generating plastic deformation due to transition fatigue, being beneficial to ensuring the elasticity of clamping spring 62, and effectively prolonging its actual service life.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (3)

1. An orthopedic restoration nail locking device comprises a connecting seat, a movable seat, a screw rod, a guide cylinder body and a nail locking head, wherein a connecting hole is formed in the top of the connecting seat, the connecting seat is connected with the movable seat through the screw rod, the guide cylinder body is arranged inside the movable seat, and the nail locking head is arranged at the end part of the guide cylinder body. The clamping reed is arched and arches towards the central line direction of the guide post body, the clamping rod is V-shaped, the opening of the clamping rod faces towards the guide post body, the connecting sleeve is arranged at the bottom of the clamping rod, the bottom of the connecting sleeve is in threaded connection with the top of the adjusting rod, and the spring is arranged between the connecting sleeve and the adjusting rod.

2. The orthopedic reduction tacker according to claim 1, wherein a spring groove for placing a clamping spring and a spring groove for placing a spring are provided on the inner wall of said sleeve.

3. The orthopedic reduction tacker according to claim 2, characterised in that the concave side of said clamping reed is provided with a secondary reed opposite to its arching direction.

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