CN209629795U - A kind of intramedullary nail proximal end bolt is oriented to locking device - Google Patents

Abstract

The utility model discloses a kind of intramedullary nail proximal end bolts to be oriented to locking device, including guide pipe, inlet port is provided at the top of the guide pipe, and wearing layer is provided on the inside of guide pipe, the bottom of the guide pipe is uniformly hinged with limit clamping plate, and the inside for limiting clamping plate is all provided with mounting groove, the inside of the mounting groove is all provided with extruding spring, and the one end for squeezing spring is all provided with limited block, erosion resistant coating is provided on the outside of the guide pipe, and guide pipe is internally provided with the first siphunculus, is provided with handle at the top of the guide pipe side.The utility model is equipped with guide pipe, pass through the use of guide pipe, can the intramedullary nail position to patient's body search, it is convenient that tail cap is installed and fixed, and the generation of tail cap dropping situations in installation process is efficiently avoided, operating time is saved, the setting of handle on guide pipe, so that taking for device is more convenient with fixation, practicability is higher.

Description

A kind of intramedullary nail proximal end bolt is oriented to locking device

Technical field

The utility model relates to medical device technical field, specially a kind of intramedullary nail proximal end bolt is oriented to locking device.

Background technique

Intramedullary nail is the common internal fixation device of orthopaedics, for the treatment of tubular bone fracture, the general structure packet of intramedullary nail Include main nail, pinning and tail cap, it is generally the case that need to be placed in tail in main nail centre bore tail end after completing replacement and fixation to fracture On the one hand cap closes intramedullary nail centre bore port, reduce port to soft tissue excitation, on the other hand avoid soft tissue and poroma long Enter in intramedullary nail centre bore, convenient for withdrawing from internal fixation device after the second stage of union, existing tail cap is by designing the tail of interior hexagonal Cap head and the short thin external thread rod being structure as a whole with tail cap head are constituted, and in practical applications, this tail cap is due to patient body position Or the reasons such as patient's experience merging intramedullary nail is difficult, is especially placed in femoral interlocking nail, it tends to be difficult to make tail cap screw thread and marrow Interior oncomelania line engagement, screws in difficulty, and out of alignment, or even generation lesion influences therapeutic effect after merging soft tissue, in addition, by It is threaded into intramedullary nail centre bore screw thread difficulty in tail cap, tail cap often falls off from hand, drops into operative site notch, when Often there is finding the very long operating time problem of tail cap occupancy that falls off, therefore needs a kind of intramedullary nail proximal end bolt guiding locking dress It sets.

Utility model content

The purpose of this utility model is to provide a kind of intramedullary nail proximal end bolts to be oriented to locking device, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions: a kind of intramedullary nail proximal end bolt guiding locking dress It sets, including guide pipe, inlet port is provided at the top of the guide pipe, and be provided with wearing layer on the inside of guide pipe, it is described to lead It is uniformly hinged with limit clamping plate to the bottom of pipe, and the inside for limiting clamping plate is all provided with mounting groove, the inside of the mounting groove It is all provided with extruding spring, and the one end for squeezing spring is all provided with limited block, is provided with erosion resistant coating on the outside of the guide pipe, And guide pipe is internally provided with the first siphunculus, and handle, and the inside setting of handle are provided at the top of the guide pipe side There is the second siphunculus, second siphunculus is connected to the first siphunculus, and the bottom of the handle is hinged with pressing plate, and at the top of pressing plate One end far from hinged place is provided with reset spring, and the top of the reset spring is fixedly connected with handle, the pressing plate Top is provided with silk thread, and silk thread runs through the second siphunculus and the first siphunculus, and the one end of the silk thread far from pressing plate all extends to The inside of mounting groove, and silk thread is all fixedly connected with limited block.

Preferably, the length of the guide pipe is 5cm.

Preferably, expansion cover is provided at the top of the inlet port.

Preferably, the limit clamping plate is provided with four groups, and the angle between adjacent limit clamping plate is 90 °.

Preferably, the bottom of the pressing plate is evenly arranged with convex block that fits the finger, and convex block is provided with five groups.

Preferably, the shape of the handle is L-type.

Compared with prior art, the utility model has the beneficial effects that intramedullary nail proximal end bolt guiding locking device installation Have guide pipe, by the use of guide pipe, can the intramedullary nail position to patient's body search, it is convenient that tail cap is pacified It fills and fixed, and efficiently avoids the generation of tail cap dropping situations in installation process, save operating time, held on guide pipe Setting so that taking for device is more convenient with fixation, practicability is higher, and guiding bottom of the tube four groups of limit clamping plates are set It sets, the spring, limited block, silk thread by limiting clamping plate and position limiting clamp intralamellar part are used cooperatively, so that device is in use The bore of guide pipe bottom end can be changed, when bore reduces, convenient for the insertion of device, lookup with intramedullary nail reduces patient institute The injury received, and when bore increase, convenient for intramedullary nail is clamped and fixed, improve the stability of device, it is ensured that tail cap Installation site it is accurate.

Detailed description of the invention

Fig. 1 is the main view schematic cross-sectional view of the utility model；

Fig. 2 is the limit clamp region schematic diagram of the utility model；

Fig. 3 is the partial structural diagram of the utility model.

In figure: 1, limiting clamping plate；2, guide pipe；3, wearing layer；4, erosion resistant coating；5, the first siphunculus；6, inlet port；7, silk Line；8, the second siphunculus；9, pressing plate；10, convex block；11, reset spring；12, handle；13, mounting groove；14, spring is squeezed；15, Limited block.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-3, a kind of embodiment provided by the utility model: a kind of intramedullary nail proximal end bolt is oriented to locking device, Including guide pipe 2, the top of guide pipe 2 is provided with inlet port 6, and the inside of guide pipe 2 is provided with wearing layer 3, guide pipe 2 Bottom is uniformly hinged with limit clamping plate 1, and the inside for limiting clamping plate 1 is all provided with mounting groove 13, and the inside of mounting groove 13 is all set It being equipped with and squeezes spring 14, and the one end for squeezing spring 14 is all provided with limited block 15, the outside of guide pipe 2 is provided with erosion resistant coating 4, And guide pipe 2 is internally provided with the first siphunculus 5, handle 12 is provided at the top of 2 side of guide pipe, and the inside of handle 12 is set It is equipped with the second siphunculus 8, the second siphunculus 8 is connected to the first siphunculus 5, and the bottom of handle 12 is hinged with pressing plate 9, and pressing plate 9 is pushed up Portion is provided with reset spring 11 far from one end of hinged place, and the top of reset spring 11 is fixedly connected with handle 12, pressing plate 9 Top is provided with silk thread 7, and silk thread 7 runs through the second siphunculus 8 and the first siphunculus 5, and the one end of silk thread 7 far from pressing plate 9 all extends To the inside of mounting groove 13, and silk thread 7 is all fixedly connected with limited block 15.

In this embodiment: the length of guide pipe 2 is 5cm, carries out using inlet port convenient for the crowd to different obese degrees 6 top is provided with expansion cover, and tail cap is facilitated to enter the inside of guide pipe 2, and limit clamping plate 1 is provided with four groups, and adjacent limit Angle between the clamping plate 1 of position is 90 °, improves limit clamping plate 1 to the limit effect of intramedullary nail, the bottom of pressing plate 9 is uniformly set It is equipped with convex block 10 that fits the finger, and convex block 10 is provided with five groups, finger is facilitated to press pressing plate 9, handle 12 Shape is L-type, is limited convenient for the hand to user.

Working principle: before use, intramedullary nail is mounted on patient's body, in use, hand grip 12, keeps pressing plate 9 Open configuration, due to pressing plate 9 open, silk thread 7 is pullled, and due to the silk thread inside mounting groove 13 all with limited block 15 It is fixedly connected, therefore silk thread 7 is pullled 15 pairs of extruding springs 14 of limited block and squeezed, the silk thread 7 limited between 1 inside of clamping plate is long Degree is reduced, and the bottom end of limit clamping plate 1 is shunk, and on one point, then, limit clamping plate 1 is inserted by hand-held device with guide pipe 2 for polymerization To inside the wound mouth of patient, on one point due to the polymerization of limit clamping plate 1, the resistance in insertion process is reduced, guide pipe 2 is inserted Enter more convenient, and damage when reducing insertion to muscle, after limit clamping plate 1 is contacted with intramedullary nail, to the progress of pressing plate 9 Pressing, pressing plate 9 do not apply pulling force to silk thread 7, and the extruding spring 14 inside mounting groove 13 pushes limited block 15 to be resetted, and limit 7 length of silk thread between 1 inside of clamping plate of position increases, and limit clamping plate 1 is expanded automatically, then, persistently pushes to guide pipe 2, The top of intramedullary nail is bonded with the bottom of guide pipe 2, then, unclamps pressing plate 9, reset spring 11 pushes pressing plate 9 to be answered Position, pressing plate 9 pull silk thread 7, and limit clamping plate 1 is shunk, and are fitted in the top on the outside of intramedullary nail, consolidate to device It is fixed, after the fixed completion of device, tail cap is placed on to the inside of guide pipe 2, then tail cap is tightened in marrow using screwdriver The top of nail, is installed for tail cap, then presses pressing plate 9, and limit clamping plate 1 opens, and slightly moves up guide pipe 2, Limit clamping plate 1 is moved to the top of intramedullary nail, then unclamps pressing plate 9, limit clamping plate 1 clamps, and bottom end flocks together, will Device extraction.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (6)

1. a kind of intramedullary nail proximal end bolt is oriented to locking device, including guide pipe (2), it is characterised in that: the top of the guide pipe (2) Portion is provided with inlet port (6), and wearing layer (3) are provided on the inside of guide pipe (2), and the bottom of the guide pipe (2) is uniformly cut with scissors It is connected to limit clamping plate (1), and the inside for limiting clamping plate (1) is all provided with mounting groove (13), the inside of the mounting groove (13) is all It is provided with and squeezes spring (14), and the one end for squeezing spring (14) is all provided with limited block (15), the outside of the guide pipe (2) It is provided with erosion resistant coating (4), and guide pipe (2) is internally provided with the first siphunculus (5), is set at the top of guide pipe (2) side It is equipped with handle (12), and handle (12) is internally provided with the second siphunculus (8), second siphunculus (8) and the first siphunculus (5) are even Logical, the bottom of the handle (12) is hinged with pressing plate (9), and one end at the top of pressing plate (9) far from hinged place is provided with again Position spring (11), the top of the reset spring (11) is fixedly connected with handle (12), is provided at the top of the pressing plate (9) Silk thread (7), and silk thread (7) is through the second siphunculus (8) and the first siphunculus (5), the one end of the silk thread (7) far from pressing plate (9) The inside of mounting groove (13) is all extended to, and silk thread (7) is all fixedly connected with limited block (15).

2. a kind of intramedullary nail proximal end bolt according to claim 1 is oriented to locking device, it is characterised in that: the guide pipe (2) length is 5cm.

3. a kind of intramedullary nail proximal end bolt according to claim 1 is oriented to locking device, it is characterised in that: the inlet port (6) expansion cover is provided at the top of.

4. a kind of intramedullary nail proximal end bolt according to claim 1 is oriented to locking device, it is characterised in that: the limit clamping plate (1) four groups are provided with, and the angle between adjacent limit clamping plate (1) is 90 °.

5. a kind of intramedullary nail proximal end bolt according to claim 1 is oriented to locking device, it is characterised in that: the pressing plate (9) bottom is evenly arranged with convex block that fits the finger (10), and convex block (10) is provided with five groups.

6. a kind of intramedullary nail proximal end bolt according to claim 1 is oriented to locking device, it is characterised in that: the handle (12) Shape be L-type.