CN214966532U

CN214966532U - Fifth metatarsal bone base part fracture guider of foot

Info

Publication number: CN214966532U
Application number: CN202120377059.8U
Authority: CN
Inventors: 郑良孝
Original assignee: Qilu Hospital of Shandong University Qingdao
Current assignee: Qilu Hospital of Shandong University Qingdao
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-12-03
Anticipated expiration: 2031-02-19

Abstract

The utility model belongs to the technical field of medical fracture reduction and fixation, and discloses a fracture fixation guider at the base part of the fifth metatarsus of a foot, wherein a swing arm is arranged on a universal adjuster, and a hollow sleeve is sleeved on the swing arm; 3 Kirschner wire holes are formed in the middle of the hollow sleeve, and the center axes of the 3 Kirschner wire holes are different from each other; the length of the kirschner wire inserted in the kirschner wire hole is 3.5 cm; the diameter is 1.4 mm. The fifth metatarsal base part fracture fixation guider adopts the design of a universal regulator, a swing arm, a hollow sleeve and a guide pin; for the reduction and fixation in the fifth metatarsal bone base fracture operation, a kirschner wire can be conveniently and accurately implanted; the operation time is shortened, the operation efficiency is increased, and bleeding is reduced; the fracture displacement is small, the percutaneous fixation can be realized, the success rate of the operation and the fracture healing rate are increased, and the operation cost of a patient is reduced.

Description

Fifth metatarsal bone base part fracture guider of foot

Technical Field

The utility model belongs to the technical field of medical science fracture reduction fixation, especially, relate to a fixed director of foot fifth metatarsal basilar part fracture.

Background

Currently, the current state of the art commonly used in the industry is such that:

fracture of the fifth metatarsal base of the foot, called dancer fracture, is a avulsion fracture caused by the stress of the fibular side short muscle tendon, also called "JONES fracture", and is one of the most common foot fractures in emergency treatment. Due to the unique anatomical morphology and biomechanical characteristics, the foot fracture has higher incidence. The irregular shape of the fifth metatarsal base part also makes the fracture of the fifth metatarsal difficult to be found in a common X-ray plain film to cause missed diagnosis, delays the operation time to cause fracture nonunion or malformation union, and causes serious traumatic arthritis. Therefore, until now, it was the hot spot for ankle surgery in clinical treatment and research around the fifth metatarsal base fracture.

In summary, the problems of the prior art are as follows:

in the prior art, the fracture at the base of the fifth metatarsal bone is only fixed by plaster, so the recovery time is long, the sequelae are more, long-term chronic pain is easy to cause, and the life quality of a patient is influenced. For the fracture displacement of more than 2mm or the fifth metatarsus-cuboid joint surface of more than 30 percent, experts agree to carry out the operation treatment. The open or closed operation of the fifth metatarsal base part generally requires repeated X-ray fluoroscopy, has large radiation quantity, inaccurate positioning and long operation time, and is easy to damage local blood circulation, thereby causing fracture nonunion.

Disclosure of Invention

To the problem that prior art exists, the utility model provides a following technical scheme: a fracture fixation guider for the fifth metatarsal base of foot. The rubber fixing device comprises an outer frame, wherein a groove is formed in the middle of the outer frame, a base is clamped in the groove, a rubber fixing pad is connected in the base and fixed by a fixing screw, a supporting rod is connected above the base, and the connecting supporting rod is fixed with the outer frame by a connecting screw;

the bone drill is characterized in that a cross arm is arranged on one side of the outer frame and fixed with the outer frame through a locking nut, an adjustable universal guider is fixed on the cross arm and connected with a swing arm, a slide block is sleeved on the swing arm, a bone drill sleeve is sleeved on the slide block, a guide pin sleeve is arranged in the bone drill sleeve of the bone drill sleeve, and 3 Kirschner wire holes are formed in the guide pin sleeve and can be provided with Kirschner wires.

As a further proposal of the utility model, the fracture fixation guider at the base part of the fifth metatarsal bone of foot is also provided with an upper support rod and a lower support rod;

the upper and lower supporting rods are fixedly connected with the outer fixing frame through screws, two ends of each fixing screw are respectively fixed on the supporting rods and the fixing frame, and the supporting rods are connected with the fixing base through fixing bolts.

As a further scheme of the utility model, the solid fixed rubber pad passes through the bolt-up at bracing piece both ends, and nut movable mounting is passed through at the fixed plate both ends at the solid fixed rubber pad both ends, can dismantle.

As a further proposal of the utility model, the corresponding position of the supporting rod is provided with a groove, a buckle and a groove joint.

As a further proposal of the utility model, the fixed plate is two, and the middle part is provided with a groove, and the joint has the backup pad regulating block in the groove.

Book (I)Utility modelHas the advantages and positive effects that:

as a further improvement of the utility model, the bottom that the device supported is provided with the supporting pad, and the bottom both sides fixed connection through fixing bolt and device.

As a further aspect of the present invention, the swing arm is connected to the universal angle formed by the horizontal arm support. Two groups of adjusting grooves are symmetrically arranged on the front side and the rear side of the cross arm; horizontal angle adjusting bolts are arranged in the two groups of adjusting grooves, and a universal adjuster is arranged on the cross arm;

the universal adjuster is connected with a swing arm, and a sliding block is arranged in the middle of the swing arm; the inside bone of having cup jointed of slider bores the sleeve, the telescopic inboard of bone drill has the guide pin sleeve.

After adopting the structure, the invention has the beneficial effects that: the invention has simple structure, reasonable design, accurate positioning of the implant guide pin or the kirschner wire implant, good position, no need of repeated fluoroscopy, effectively shortened operation time and improved operation efficiency.

The fracture displacement is small, the percutaneous closed reduction and fixation can be realized, the success rate of the operation and the fracture healing rate are increased, and the operation cost of a patient is reduced.

The utility model has simple installation, convenient operation and wide clinical practical application, simplifies the operation of doctors in the operation, shortens the operation time, and adopts the design of universal regulator, swing arm, hollow sleeve and guide pin as the fifth metatarsus basilar part fracture guider; for the reduction and fixation in the fifth metatarsal bone base fracture operation, a kirschner wire can be conveniently and accurately implanted; the operation time is shortened, the operation efficiency is increased, and bleeding is reduced; the fracture displacement is small, the percutaneous fixation can be realized, the success rate of the operation and the fracture healing rate are increased, and the operation cost of a patient is reduced.

Drawings

Fig. 1 is a schematic structural view of a fracture fixation guide for the fifth metatarsal base of a foot according to an embodiment of the present invention.

Fig. 2 is a schematic side view provided by an embodiment of the present invention.

Fig. 3 is a top view provided by an embodiment of the present invention.

Fig. 4 is a right side view provided by the embodiment of the present invention.

In the figure: 1. an outer frame; 2. a base fixing screw; 3. a rubber pad; 4. a base; 5. a support bar; 6. a connecting screw; 7. a cross arm; 8. locking the nut; 9. a universal adjuster; 10. swinging arms; 11. a slider; 12. a bone drill sleeve; 13. a guide pin sleeve; 14. a kirschner wire.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

The technical scheme of the patent is further described in detail in the following detailed description in combination with the attached drawings.

As shown in fig. 1 and 4, the utility model provides a technical solution, a fracture guider device at the bottom of foot fifth metatarsal base, which comprises an outer frame 1, and is characterized in that a groove is arranged in the middle of the outer frame 1, a base 4 is clamped in the groove, a rubber fixing pad 3 is connected in the base 4, the fixing pad 3 is fixed by a fixing screw 2, a support rod 5 is connected above the base 4, and the support rod 5 is fixed with the outer frame 1 by a connecting screw 6;

the bone drill is characterized in that a cross arm 7 is arranged on one side of the outer frame 1, the cross arm 7 is fixed with the outer frame 1 through a locking nut 8, an adjustable universal guider 9 is fixed on the cross arm 7, the universal guider 9 is connected with a swing arm 10, a slide block 11 is sleeved on the swing arm 10, a bone drill sleeve 12 is sleeved on the slide block 11, a guide pin sleeve 13 is arranged in the

bone drill sleeve

12, 3 Kirschner wire holes are formed in the guide pin sleeve 13, and a Kirschner wire 14 can be installed.

A cross arm 7 is installed on one side of the outer frame, the left end and the right end of the cross arm 7 are both fixed and movably connected with a side frame of the outer frame 1 through adjustable locking nuts 8, an adjustable universal guider 9 is fixed on the cross arm 7, the universal guider 9 is connected with a swing arm 10, a slide block 11 is sleeved on the swing arm 10, a bone drill sleeve 12 is sleeved on the slide block 11, a detachable guide pin sleeve 13 is installed in the

bone drill sleeve

12, 3 Kirschner wire holes are formed in the guide pin sleeve 13, Kirschner wires 14 can be installed, and the centers of the 3 Kirschner wire holes are different axially; the length of the kirschner wire inserted in the kirschner wire hole is 3.5 cm; the diameter is 1.4 mm;

the support rod is movably connected with the outer frame through a bolt, two ends of the rubber pad 3 are respectively fixed on the support rod and the outer frame, and two ends of the support rod are riveted in the outer frame and can be detached.

The outer frame 1 is two, and the centre is provided with the recess, and the joint has bracing piece 5 and base 4 in the recess.

The working principle of the invention is as follows: the device is fixed on a bedstead, the affected foot of a patient is placed on a rubber fixing pad 3, the height is adjusted to be the most suitable height by adjusting a locking nut 8 and a cross arm 7, and then the direction of a bone drill sleeve 12 is adjusted by adjusting the angle of a universal guide 9 and a swing arm 10 and a slide block 11, so that a guide pin sleeve 13 in the bone drill sleeve is aligned with the fracture end of the fifth metatarsal base part of the foot, and the metatarsal fracture of the patient is fixed.

Although the foregoing invention has been described in detail with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A guider for fixing fracture at the base of the fifth metatarsus of foot comprises an outer frame (1) and is characterized in that a groove is formed in the middle of the outer frame (1), a base (4) is connected in the groove in a clamping mode, a rubber fixing pad (3) is connected in the base (4), the fixing pad (3) is fixed through a fixing screw (2), a support rod (5) is connected above the base (4), and the connecting support rod (5) is fixed with the outer frame (1) through a connecting screw (6);

there is xarm (7) on outrigger (1) one side, xarm (7) are fixed with outrigger (1) through lock nut (8), be fixed with adjustable universal director (9) on xarm (7), swing arm (10) are connected to universal director (9), the cover is equipped with slider (11) on swing arm (10), the cover is equipped with bone drill sleeve (12) on slider (11), be equipped with guide pin sleeve (13) in bone drill sleeve (12), there are 3 ke shi needle holes in guide pin sleeve (13), mountable ke shi needle (14).

The hollow sleeve is provided with a middle opening, and the center axes of the 3 Kirschner wire holes are different from each other; the length of the kirschner wire inserted in the kirschner wire hole is 3.5 cm; the diameter is 1.4 mm;

the fracture fixation guider for the fifth metatarsal base part of the foot is also provided with an outer frame (1);

a cross arm (7) is arranged on the side of the outer frame (1), and the front end and the rear end of the cross arm (7) are movably connected with the side surface of the outer frame (1) through locking nuts (8);

two groups of adjusting grooves are symmetrically arranged on the front side and the rear side of the cross arm (7); horizontal angle adjusting bolts are arranged in the two groups of adjusting grooves, and a universal adjuster (9) is arranged on the cross arm (7);

the universal adjuster (9) is connected with a swing arm (10), and a sliding block (11) is arranged in the middle of the swing arm (10); the inside of slider (11) has cup jointed bone drill sleeve (12), there is guide pin sleeve (13) bone drill sleeve (12) inboard.

2. The fifth metatarsal base fracture fixation guide of the foot according to claim 1, further comprising a support rod (5);

the supporting rod (5) is fixedly connected with the outer fixing frame (1) through a connecting screw (6), two ends of the fixing screw (6) are respectively fixed on the supporting rod (5) and the outer fixing frame (1), and the supporting rod is connected with the fixing base through a fixing bolt.

3. The apparatus for fixing and guiding the fracture of the fifth metatarsal base of the foot according to claim 1, characterized in that the fixing rubber pad (3) is fixed to the base by means of a bolt (2).

4. The metatarsal base fracture fixation guide device according to claim 1, wherein the cross arm (10) is snap-fitted with a universal adjuster (9), and a groove is provided at a position corresponding to the universal adjuster (9), and the snap-fit is snap-fitted with the groove.

5. The apparatus for fixing and guiding fracture of the fifth metatarsal base of foot according to claim 1, wherein the external fixator (1) is made of two pieces, and a groove is arranged in the middle, and a cross bar locking screw is clamped in the groove.