CN210301178U - External fixing support device for fracture - Google Patents

Abstract

The utility model discloses a fracture external fixation support device, which comprises a nail and a plate body, wherein compared with the current external fixation support fixed by a nail clamp, the nail plate fixation system formed by the nail and the plate body has the characteristics of portability, small volume and easy carrying; the fracture external fixation support device further comprises a clamping block which is slidably connected to the plate body, a clamping hole which is used for enabling the nail to penetrate through the locking hole and the clamping hole is formed in the clamping block corresponding to the locking hole, the clamping block is further provided with a deviation locking hole, the deviation locking hole deviates from the plate body, the nail is enabled to independently penetrate through the deviation locking hole to fix a target skeleton outside the plate body, and the nail is convenient to put into a backbone with physiological curvature or a fracture broken end with poor resetting.

Description

External fixing support device for fracture

Technical Field

The utility model belongs to the technical field of be applied to bone fracture treatment medical instrument, concretely relates to fracture external fixation support device.

Background

The external fixing support is an external medical instrument widely applied to the fields of wound orthopedics, limb reconstruction and the like, and currently, the external fixing support mostly adopts a nail-bar system, wherein the mode of connecting an external fixing screw and an external fixing bar is nail-clip fixing.

The fixing method has the characteristics of firm fixation, convenient assembly and capability of placing nails from multiple directions, but has the following two main defects: the nail clamp needs longer screws when being fixed, so that the exposed screw length of the limb is longer, the limb of a patient is difficult to move and dress, the carrying convenience of the patient is seriously influenced, and great pain is brought to the patient (particularly the patient who needs to carry the nail clamp for a long time); and (II) in a backbone with physiological curvature or in a fracture broken end area with poor reduction, the external fixation nail clamp system cannot optimize the implantation position of the nail due to large occupation and inflexible structure of the nail clamp, so that the external fixation effect is poor, and further the bone fracture recovery is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an external fixation bracket device for fracture, which comprises a nail and an integrally formed plate body, wherein a locking hole is arranged in the extending direction of the plate body, the nail is fittingly arranged in the locking hole and detachably connected and fixed with the locking hole at one side end part, and the other side end part of the nail is arranged in a target skeleton; but still include sliding connection in the fixture block of plate body, the fixture block corresponds the locking hole and offers the screens hole that is used for the nail to wear to establish locking hole and self simultaneously, and the fixture block still is equipped with skew locking hole, and skew locking hole skew plate body setting makes the nail independently wear to establish skew locking hole in the plate body external fixation target skeleton.

Preferably, the vertical path length from the center of the locking hole to the edge of the extending direction of the plate body is preferably 5mm, 10mm, 15mm or 20 mm.

Preferably, the nail is a threaded nail with a thread at the end part, wherein the end of the nail cap is correspondingly matched with the thread arranged in the locking hole of the plate body, the end of the nail tail is provided with the thread with a preset length, and the middle part of the nail is smooth.

Preferably, the plate body locking hole and the fixture block deviation locking hole are conical threaded holes.

Preferably, the clamping block is provided with clamping plates, the clamping plates are integrally formed on two sides of a U-shaped connecting piece, a U-shaped groove is formed in the inner side of each clamping plate, the clamping block is clamped with the plate body through the U-shaped groove and freely slides in the extending direction of the plate body, the clamping holes are oppositely formed in the clamping plates on the two sides, and when the clamping block is clamped with the plate body, the clamping holes are formed in two sides of the locking hole of the plate body and the center of the clamping hole is in the same straight line.

Preferably, the plate body adopts stainless steel, aluminum alloy or titanium alloy to make, the locking hole is single-row equidistance on the plate body and arranges, the joint board homonymy is equipped with two at least screens holes, and the screen hole corresponds the adaptation with plate body locking hole.

The utility model discloses an external fixation support device for fracture, the beneficial technological effect that can bring as follows:

① the fracture external fixation bracket device comprises a nail and a plate body, wherein the nail plate fixation system formed by the nail and the plate body has the advantages of portability, small volume and easy carrying compared with the current external fixation bracket fixed by a nail clamp;

② the external fixation bracket device for fracture further comprises a fixture block slidably connected to the plate, the fixture block is provided with a locking hole corresponding to the locking hole for the nail to simultaneously penetrate through the locking hole and the self-locking hole, the fixture block is also provided with a deviation locking hole which deviates from the locking hole and is arranged to deviate from the plate, so that the nail independently penetrates through the deviation locking hole to fix the target bone outside the plate, thereby facilitating the nail placement at the physiologically bent backbone or at the fracture end with poor reduction;

③ the nail is a screw with screw thread on its end, wherein the end of the nail cap is matched with the screw thread in the locking hole of the plate body, the locking and fixing of the external fixation nail and the plate body can be realized by the engagement of the screw thread, the end of the nail tail is provided with a screw thread with a preset length, so as to be screwed into the bone, and at the same time, the fixation is firm, the looseness is reduced, and the middle part of the nail is smooth, so as to reduce the influence on the soft tissue.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a middle fracture external fixation support device of the present invention;

FIG. 2 is a schematic view of the middle fracture external fixation system of the present invention in use;

FIG. 3 is a schematic structural view of a middle clip block of the present invention;

fig. 4 is a schematic structural view of the middle nail of the present invention.

Description of the main element symbols:

1: nailing; 2: a plate body; 21: a locking hole; 3: a clamping block; 31: a position clamping hole; 32: offset locking hole

Detailed Description

The external fixing bracket is an external medical appliance widely applied to the fields of trauma orthopedics, limb reconstruction and the like, and mainly has the following functions: the fracture reduction device can keep the fracture end to be well reset; (II) two ends of the backbone can be retracted to prolong limbs; thirdly, the compression technology can be utilized to promote the fracture healing; and (IV) the early deformity can be corrected. At present, the external fixing bracket mostly adopts a nail rod system, wherein the mode of connecting an external fixing screw and an external fixing rod is fixed by a nail clamp. The fixing method has the characteristics of firm fixation, convenient assembly and capability of placing nails from multiple directions, but has the following two main defects: the nail clamp needs longer screws when being fixed, so that the exposed screw length of the limb is longer, the limb of a patient is difficult to move and dress, the carrying convenience of the patient is seriously influenced, and great pain is brought to the patient (particularly the patient who needs to carry the nail clamp for a long time); and (II) in a backbone with physiological curvature or in a fracture broken end area with poor reduction, the external fixation nail clamp system cannot optimize the implantation position of the nail due to large occupation and inflexible structure of the nail clamp, so that the external fixation effect is poor, and further the bone fracture recovery is influenced.

For the inconvenient condition of taking, occupation big, the flexibility is poor that the external fixation mode of solving nail stick system exists, the utility model provides an external fixation support device for fracture has improved nail stick fixing system, provides the nail board bone fracture external fixation system that nail and plate body formed, including nail and plate body, compare the fixed external fixation support of present nail clamp, it has lightly, and is small, the characteristics that carry easily. Specifically, as shown in fig. 1-2, the external fracture fixation device includes a nail 1 and an integrally formed plate body 2, wherein a plurality of locking holes 21 are formed in the extension direction of the plate body 2, the shape and size of the nail are matched with the locking holes, the nail 1 is inserted into the locking holes 21 and detachably connected and fixed with the locking holes 21 at one end, and the other end is inserted into a target bone; furthermore, the fracture external fixation support device also comprises a clamping block 3 which is slidably connected with the plate body 2, a clamping hole 31 is formed in the clamping block 3 corresponding to the locking hole 21, the nail 1 simultaneously penetrates through the locking hole 21 and the clamping hole 31 and is placed into a bone at the end part, in addition, the clamping block 3 is also provided with a deviation locking hole 32, the deviation locking hole 32 is arranged deviating from the plate body, so that the nail independently penetrates through the deviation locking hole to fix a target bone outside the plate body, the nail is conveniently placed at a backbone with physiological bending or a fracture end with poor reduction, and in order to obtain a good fixation effect, the length of a vertical path which deviates from the center of the locking hole 32 and the edge of the plate body 2 in the extending direction is preferably 5mm, 10mm, 15mm or 20 mm. In the embodiment, the nail 1 is a threaded nail (as shown in fig. 4) with a thread at the end part, wherein the end part of the nail cap is correspondingly matched with the thread in the plate body locking hole 21, and the external fixing nail and the plate body can be locked and fixed by meshing the threads; the tail end of the nail is provided with a thread with a preset length so as to be screwed into a bone, and meanwhile, the nail is firmly fixed and the looseness is reduced, and the middle part of the nail is smooth so as to reduce the influence on soft tissues; the plate body locking hole 21 and the latch deviation locking hole 32 are tapered threaded holes.

In order to further rationalize the structure and reduce the cost, in the external fracture fixation bracket device (as shown in fig. 2-3) of the embodiment, the clamping block 3 comprises clamping plates arranged on opposite sides, the clamping plates are integrally formed on two sides of a U-shaped connecting piece, a U-shaped groove is formed on the inner sides of the clamping plates, the clamping block 3 is clamped with the plate body 2 through the U-shaped groove and freely slides in the extending direction of the plate body, the clamping holes 31 are oppositely arranged on the clamping plates on the two sides, and when the clamping block is clamped with the plate body, the clamping holes 31 are positioned on the two sides of the plate body locking hole 21 and are centered on the same straight line, so that a nail can sequentially pass through the clamping holes and the locking. In this embodiment, plate body 2 adopts the steel to make, in other embodiments, the plate body can adopt medical aluminum alloy or titanium alloy material to make, locking hole 21 is single row equidistance on plate body 2 and arranges, the joint board homonymy is equipped with two at least screens hole 31, the interval in screens hole is unanimous with plate body locking hole and screens hole and plate body locking hole can correspond the adaptation respectively and pass by the needle, thereby make the connection of fixture block and plate body more stable, of course, in other embodiments, the joint board except that two screens hole links to each other with the plate body, can also link to each other with the plate body by single screens hole.

The fracture external fixation support device provided by the utility model is introduced in detail, and the principle and the implementation mode of the utility model are explained by applying a specific example, and the explanation of the above example is only used for helping to understand the core idea of the utility model; meanwhile, for the person skilled in the art, according to the idea and method of the present invention, there may be changes in the specific embodiments and the application scope, and in summary, the content of the present specification should not be understood as a limitation to the present invention.

Claims (6)

1. A fracture external fixation support device is characterized by comprising a nail and an integrally formed plate body, wherein a locking hole is formed in the extension direction of the plate body, the nail is fittingly arranged in the locking hole in a penetrating manner, the end part of one side of the nail is detachably connected and fixed with the locking hole, and the end part of the other side of the nail is arranged in a target bone; but still include sliding connection in the fixture block of plate body, the fixture block corresponds the locking hole and offers the screens hole that is used for the nail to wear to establish locking hole and self simultaneously, and the fixture block still is equipped with skew locking hole, and skew locking hole skew plate body setting makes the nail independently wear to establish skew locking hole in the plate body external fixation target skeleton.

2. The external fracture fixation bracket device according to claim 1, wherein the vertical path length of the offset locking hole center from the plate body extending direction edge is preferably 5mm, 10mm, 15mm or 20 mm.

3. The external fixation bracket device for bone fracture of claim 1, wherein the nail is a threaded nail with a thread at the end, wherein the end of the head of the nail is correspondingly matched with the thread arranged in the locking hole of the plate body, the end of the tail of the nail is provided with a thread with a preset length, and the middle of the nail is smooth.

4. The external fracture fixation bracket device of claim 3, wherein the plate locking hole and the fixture block offset locking hole are tapered threaded holes.

5. The external fixation frame device for bone fracture as claimed in claim 1, wherein the clamping block has clamping plates integrally formed at both sides of a U-shaped connecting member and forming a U-shaped groove at the inner side of the clamping plate, the clamping block is clamped to the plate body through the U-shaped groove and freely slides in the extending direction of the plate body, the clamping holes are oppositely formed at the clamping plates at both sides, and when the clamping block is clamped to the plate body, the clamping holes are located at both sides of the locking hole of the plate body and centered on the same straight line.

6. The external fixation frame device for bone fracture as claimed in claim 5, wherein said plate body is made of stainless steel, aluminum alloy or titanium alloy, said locking holes are arranged in a single row and at equal intervals on the plate body, said clamping plate is provided with at least two clamping holes on the same side, and the clamping holes are correspondingly matched with the locking holes on the plate body.

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