CN211433233U

CN211433233U - External fixator for tubular bone fracture

Info

Publication number: CN211433233U
Application number: CN201921689064.1U
Authority: CN
Inventors: 刘玉田; 陈振兵; 姜涛; 刘卫
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-09-08
Anticipated expiration: 2029-10-10

Abstract

The utility model relates to a tubulose bone fracture external fixation ware, including mount, connecting axle and connecting screw, the mount includes main mount and vice mount, main mount with vice mount is the arc, main mount with the top of vice mount is equipped with the fixed fork, main mount with the tail end of vice mount is equipped with the screw hole, main mount with the middle section of vice mount is equipped with the connecting hole, the connecting axle passes the connecting hole, connecting screw passes the screw hole will main mount with the tail end connection of vice mount, be equipped with set screw on the main mount, set screw's top is passed set screw hole that is equipped with on the main mount with the connecting axle contact. The utility model is used for the external fixation of hand tubulose fracture, regulation fixed position that can be convenient prevents effectively that the slippage from with not hard up, guarantees fixed effect.

Description

External fixator for tubular bone fracture

The technical field is as follows:

the utility model relates to the technical field of medical equipment, concretely relates to tubulose bone fracture external fixation ware.

Background art:

the skeleton of human body is mainly tubular skeleton, under the impact of large external force, the tubular skeleton of human body may be broken by impact, i.e. common fracture, in daily life, fracture fixing frame is usually required for serious fracture. In the prior art, different fixing frames are usually selected and used for fixing according to the fracture mode of tubular bones and the specific positions of fractures, the external fracture fixator is characterized in that a fixing support is arranged outside a fractured limb to assist in supporting the bones, and various displacements of the corrected bones in the healing process are generated. Patent application number is CN 201711019685.4's patent through set up the mount main part and the vice body of mount that can mutual rotation regulation on the connecting axle, carries out the locking and fixes through the position adjustment back to the relative mount main part of the vice body of mount for press from both sides the tubulose skeleton at tight fracture position, can assemble work before the art outside the patient body, simplify the operation flow, practice thrift the operation time. However, the structure is complex, the contact part with the fracture part is in single-line contact, the pressing force is provided through the limiting device, the surface of the tubular skeleton is generally arc-shaped, the skeleton is easy to loose and slip when being subjected to external force, secondary wound is caused, and the top end of the fixing frame needs to be pressed on the surface of the skeleton after being opened on the skin, so that a large wound is caused, and pain is caused to a patient.

The utility model has the following contents:

technical problem to be solved

The utility model aims at providing a tubulose bone fracture external fixation ware for the external fixation of tubulose skeleton fracture department solves current external fixation device and takes place the centre gripping untight and the slippage easily when tubulose skeleton receives external force, arouses secondary wound, and causes the problem of great wound on skin.

The technical scheme is as follows:

in order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a tubulose bone fracture external fixation ware, includes mount, connecting axle and connecting screw, the mount includes main mount and vice mount, main mount with vice mount is the arc, main mount with the top of vice mount is equipped with the stationary fork, be equipped with on the stationary fork and insert the needle, main mount with the tail end of vice mount is equipped with the screw hole, main mount with the middle section of vice mount is equipped with the connecting hole, the connecting axle passes the connecting hole, connecting screw passes the screw hole will main mount with the end connection of vice mount, be equipped with set screw on the main mount, set screw's top is passed set screw hole that is equipped with on the main mount with the connecting axle contacts.

The fixing fork at the top ends of the main fixing frame and the auxiliary fixing frame is used for clamping and fixing tubular bones, the insertion needles penetrate through skin and are in contact with the outer surfaces of the tubular bones, the insertion needles are tightly pressed on the outer surfaces of the tubular bones through the matching of the connecting screws and the threaded holes, the clamping is firm and cannot slip, the main fixing frame and the auxiliary fixing frame can rotate around the connecting shaft so as to adjust the clamping angle, and after the adjustment is finished, the positioning screws are screwed into the positioning screw holes to lock the positions of the fixing frames.

Furthermore, the fixing frame has at least three pairs and is arranged on the connecting shaft in parallel, the fixing frame can slide on the connecting shaft along the connecting hole, the clamping position can be adjusted according to the length of the tubular skeleton and the position of the fracture wound surface, and the operation is convenient.

Furthermore, the number of the insertion needles is four, the insertion needles are distributed on the fixing fork in a claw shape, and the four insertion needles penetrate through the skin and are fixed on the surface of a bone at the fracture part, so that the fixation is firm.

Furthermore, a rubber gasket is arranged in the connecting hole, the top end of the positioning screw is in contact with the rubber gasket, and the rubber gasket is used for increasing the friction force between the connecting shaft and the fixing frame, so that the main fixing frame and the auxiliary fixing frame are ensured not to be loosened after being fixed on the connecting shaft by the positioning screw.

Furthermore, the diameter of the insertion needle is 0.5mm-1mm, so that the wound of the insertion needle on the skin is small, the insertion needle is easy to recover, and the pain of a patient is relieved.

(III) the beneficial effects are as follows:

compared with the prior art, the utility model discloses the beneficial effect who produces is: (1) the fixing forks with the insertion needles are arranged at the top ends of the main fixing frame and the auxiliary fixing frame, so that the fixing frame can adjust the clamping position according to the length of the tubular skeleton and the position of the fracture wound surface, firm fixation is ensured, and the phenomenon that the fixing frame slips and loosens when the tubular skeleton is subjected to external force to cause secondary trauma is effectively prevented; (2) the insertion needle with the diameter of only 0.5mm-1mm is arranged at the front end of the fixing fork, so that the insertion needle penetrates through the skin of a patient to be in contact with the surface of a bone, the wound on the surface of the skin is reduced, and the pain of the patient is easy to recover and relieve.

Description of the drawings:

in order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below.

Fig. 1 is a front sectional view schematically illustrating an external fixator for tubular bone fracture according to an embodiment of the present invention;

FIG. 2 is a schematic side sectional view of an external fixator for fracture of tubular bone according to an embodiment of the present invention;

FIG. 3 is an enlarged partial perspective view of the external fixator for tubular bone fracture according to the embodiment of the present invention at the I position;

in the figure: 1. a fixed mount; 11. a main fixing frame; 12. a secondary mount; 2. a connecting shaft; 3. a connecting screw; 4. a fixed fork; 5. inserting a needle; 6. a threaded hole; 7. connecting holes; 8. a set screw; 9. positioning screw holes; 10. rubber gasket

The specific implementation mode is as follows:

the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, fig. 2 and fig. 3, the external fixer for tubular bone fracture comprises a fixing frame 1, a connecting shaft 2 and a connecting screw 3, wherein the fixing frame 1 comprises a main fixing frame 11 and an auxiliary fixing frame 12, the main fixing frame 11 and the auxiliary fixing frame 12 are both arc-shaped, a fixing fork 4 is arranged at the top ends of the main fixing frame 11 and the auxiliary fixing frame 12, an insertion needle 5 is arranged on the fixing fork 4, a threaded hole 6 is arranged at the tail end of the main fixing frame 11 and the tail end of the auxiliary fixing frame 12, a connecting hole 7 is arranged in the middle section of the main fixing frame 11 and the middle section of the auxiliary fixing frame 12, the connecting shaft 2 passes through the connecting hole 7, the connecting screw 3 passes through the threaded hole 6 to connect the tail ends of the main fixing frame 11 and the auxiliary fixing frame 12, a positioning.

Preferably, the fixing frame 1 has at least three pairs and is arranged on the connecting shaft 2 in parallel, the fixing frame 1 can slide on the connecting shaft 2 along the connecting hole 7, the clamping position can be adjusted according to the length of the tubular skeleton and the position of the fracture wound surface, and the operation is convenient.

Preferably, four insertion needles 5 are distributed on the fixing fork 4 in a claw shape, and the four insertion needles 5 penetrate through the skin and are fixed on the surface of the bone at the fracture part, so that the fixation is ensured to be firm.

Preferably, a rubber gasket 10 is arranged in the connecting hole 7, the top end of the positioning screw 8 is in contact with the rubber gasket 10, and the rubber gasket 10 is used for increasing the friction force between the connecting shaft 2 and the fixing frame 1 and ensuring that the main fixing frame 11 and the auxiliary fixing frame 12 are not loosened after being fixed on the connecting shaft 2 by the positioning screw 8.

Preferably, the diameter of the insertion needle 5 is 0.5mm to 1mm, which ensures that the insertion needle 5 opens a small wound on the skin, is easy to recover, and relieves the pain of the patient.

The embodiment of the utility model provides an application method of tubular bone fracture external fixator as follows:

when the tubular bone fracture is clamped and fixed, the fracture is manually reset firstly, then the tubular bone is clamped and fixed by using the fixing fork 4 at the top ends of the main fixing frame 11 and the auxiliary fixing frame 12, the four insertion needles 5 penetrate through the skin to be in contact with the outer surface of the tubular bone, the insertion needles 5 are tightly pressed on the outer surface of the tubular bone through the matching of the connecting screw 3 and the threaded holes 6, the clamping is firm and cannot slip, the main fixing frame 11 and the auxiliary fixing frame 12 can rotate around the connecting shaft 2 and slide along the connecting shaft 2, so that the clamping angle and the clamping position can be adjusted, the positioning screw hole 9 is screwed in through the positioning screw 8 after the adjustment is finished, and the top end of the positioning screw 8 is tightly pressed on the connecting shaft 2 to lock the position of the.

To sum up, the utility model provides a tubulose bone fracture external fixation ware for the external fixation of tubulose bone fracture department solves current external fixation device and takes place the centre gripping easily when tubulose bone receives external force not tightly and the slippage, arouses secondary wound, and causes the problem of great wound on skin.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims

1. An external fixer for tubular bone fracture, which is characterized in that: including mount, connecting axle and connecting screw, the mount includes main mount and vice mount, main mount with vice mount is the arc, main mount with the top of vice mount is equipped with the stationary fork, be equipped with the insert needle on the stationary fork, main mount with the tail end of vice mount is equipped with the screw hole, main mount with the middle section of vice mount is equipped with the connecting hole, the connecting axle passes the connecting hole, connecting screw passes the screw hole will main mount with the end connection of vice mount, be equipped with set screw on the main mount, set screw's top is passed set screw hole that is equipped with on the main mount with the connecting axle contact.

2. The external fixator for tubular bone fracture of claim 1, wherein: the fixing frame has at least three pairs and is arranged on the connecting shaft in parallel.

3. The external fixator for tubular bone fracture of claim 1, wherein: the number of the insertion needles is four, and the insertion needles are distributed on the fixing fork in a claw shape.

4. The external fixator for tubular bone fracture of claim 1, wherein: and a rubber gasket is arranged in the connecting hole, and the top end of the positioning screw is contacted with the rubber gasket.

5. The external fixator for tubular bone fracture according to claim 1 or 3, wherein: the diameter of the insertion needle is 0.5mm-1 mm.