CN217510578U - External bone extender of shin bone - Google Patents
External bone extender of shin bone Download PDFInfo
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- CN217510578U CN217510578U CN202220078389.1U CN202220078389U CN217510578U CN 217510578 U CN217510578 U CN 217510578U CN 202220078389 U CN202220078389 U CN 202220078389U CN 217510578 U CN217510578 U CN 217510578U
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Abstract
The utility model discloses an external bone extender of shin bone, a serial communication port, include: a fixed plate, a slide block and a driving device; the fixing plate is provided with a plurality of first fixing holes which penetrate through the fixing plate so as to fix the tibia through the first fixing holes; a sliding groove is formed in the length direction of the fixing plate, the sliding block is connected to the sliding groove in a sliding mode, and a plurality of second fixing holes are formed in the sliding block; the driving device is arranged on the fixed plate and connected to the sliding block so as to drive the sliding block to slide along the length direction of the fixed plate. The utility model discloses an external bone extender of shin bone is small, and the normal life influence to the patient among the rehabilitation process is less, and stability is high, and the bone section skew is little, and treatment is good.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to an external bone extender of shin bone.
Background
A missing tibial bone injury is a severe bone injury. When the biological tissue is slowly pulled, a certain tension is generated, and the regeneration and active growth of the tissue can be stimulated. It grows in the same way as fetal tissue in cell division. Human bones have great regeneration potential and plasticity as well as epithelial tissues and connective tissues of human bodies. The proper stress traction is given to the bone, and the bone and the attached muscles, fascia, blood vessels and nerves grow synchronously. Ilizarov (Calif. Alizallov, Russian orthopedists) concluded in clinical experiments that the generation of new bone is most suitable at a traction speed of 1mm per day, and the completion of traction speed of 1mm per day in 4-6 times is the current gold standard for traction speed and rhythm. According to the principle, a tibia extender is mostly adopted to assist in treatment of the tibia lost bone injury.
The tibia extender can be generally divided into two forms of an annular external fixator and a single-arm rail-type fixator.
However, the operation of the annular external fixing frame is complicated, the operation has certain risks, and the injury of blood vessels and nerves is easily caused by improper operation of doctors; needs to penetrate soft tissues of the lower leg, causes local pain of the lower leg, and indirectly causes the limitation of the joint movement function; the achilles tendon contracture and deformity healing; the rehabilitation process affects the normal life and the like.
The stability of the single-arm rail type fixing frame is not as good as that of an annular external fixing frame, and angular deformity is found when the single-arm rail type fixing frame is extended, so that the correction is difficult; bone segment deviation, skin cutting, osteogenesis imperfecta, high unhealed rate of the concierge end and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an external bone extender of shin bone is provided to solve prior art, the operation is complicated, to patient's injury nature big, poor stability lead to healing bad scheduling problem.
In order to solve the technical problem, according to the utility model discloses an aspect provides an external bone extender of shin bone, include: a fixed plate, a slide block and a driving device;
the fixing plate is provided with a plurality of first fixing holes which penetrate through the fixing plate, so that the tibia can be fixed through the first fixing holes;
a sliding groove is formed in the length direction of the fixing plate, the sliding block is connected to the sliding groove in a sliding mode, and a plurality of second fixing holes are formed in the sliding block;
the driving device is arranged on the fixed plate and connected to the sliding block so as to drive the sliding block to slide along the length direction of the fixed plate.
In some embodiments, a through groove is provided on the fixing plate, and the through groove is provided along the length direction of the fixing plate.
In some embodiments, the drive device comprises a screw and a sleeve;
the screw rod is rotatably connected to the fixing plate, and the sleeve is fixedly connected to one side of the sliding block;
the screw rod stretches into the sleeve, and threads matched with the screw rod are arranged on the inner wall of the sleeve.
In some embodiments, the drive device comprises a screw and a nut;
the screw rod is fixedly connected to one side of the sliding block, and the nut is rotatably connected to the fixing plate;
the screw rod is in threaded connection with the nut.
In some embodiments, the first fixing holes are respectively disposed at two sides of the fixing plate along the length direction, and are symmetrically disposed along two ends of the length direction.
In some embodiments, the second fixing holes are symmetrically arranged along both sides of the length direction of the slider.
In some embodiments, the number of the first fixing holes is 16 to 24, the number of the second fixing holes is 6 to 10, and the first fixing holes and the second fixing holes are threaded holes.
In some embodiments, flanges are arranged on two sides of the fixing plate in the length direction, so that the sliding block is clamped in the sliding groove.
In some embodiments, a plurality of the first fixing holes pass through the flange and the fixing plate.
In some embodiments, the fixing plate is provided with a scale.
Compared with the prior art, the utility model obvious advantage and beneficial effect have. Borrow by above-mentioned technical scheme, the utility model relates to an external bone extender of shin bone can reach comparable technical progress nature and practicality to have the wide use value in industry, it has following advantage at least:
compared with the annular external fixing frame, the external tibia bone extender has small volume and has less influence on the normal life of a patient in the rehabilitation process; compared with a single-arm rail type fixing frame, the fixing frame is high in stability, small in bone segment deviation and good in treatment effect.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic perspective view illustrating an external tibial bone extender according to an embodiment of the present invention;
fig. 2 is a schematic side view of the external tibial bone extender according to an embodiment of the present invention.
[ notation ] to show
10: fixing plate
101: first fixing hole
102: sliding chute
103: through groove
104: flanging
20: sliding block
201: second fixing hole
30: driving device
301: screw rod
302: sleeve barrel
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the predetermined purpose of the present invention, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments for the specific implementation and effects of the external tibial bone extender according to the present invention.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
The embodiment of the utility model provides an external bone extender of shin bone, as shown in fig. 1, the external bone extender of shin bone includes: a fixed plate 10, a slider 20 and a driving device 30.
Wherein, a plurality of first fixing holes 101 are arranged on the fixing plate 10, so as to fix the tibia through the first fixing holes 101; a sliding groove 102 is formed along the length direction of the fixing plate 10, the sliding block 20 is slidably connected to the sliding groove 102, and a plurality of second fixing holes 201 are formed in the sliding block 20; the driving device 30 is disposed on the fixed plate 10 and connected to the slider 20 to drive the slider 20 to slide along the length direction of the fixed plate 10.
Specifically, the fixing plate 10 is provided with a plurality of first fixing holes 101 therethrough. The fixing plates 10 are fixed at both ends of the affected part of the tibia through the first fixing holes 101.
The fixed plate 10 is provided with a slide groove 102 along a length direction thereof, and both sides of the slider 20 are inserted into the slide groove 102 so that the slider 20 can slide with respect to the fixed plate 10. The slide block 20 is provided with a plurality of second fixing holes 201 for fixing the bone blocks to be moved, and a through groove 103 is provided on the bottom of the slide groove 102 (i.e., the fixing plate 10) in the longitudinal direction of the fixing plate 10 along the longitudinal direction of the slide groove 102. The driving device 30 is disposed on the fixed plate 10 and connected to the slider 20. The driving device 30 drives the sliding block 20 to move along the sliding slot 102, and finally the position change of the sliding block 20 relative to the fixed plate 10 is realized.
In one embodiment, as shown in fig. 1, the driving device 30 includes a screw 301 and a sleeve 302. The screw 301 is rotatably engaged with the fixing plate 10, the sleeve 302 is fixedly disposed on one side of the slider 20, and threads are formed on the inner wall of the sleeve 302 to threadedly engage the screw 301 with the sleeve 302. The drive sleeve 302 can then be moved along the slide groove 102 by rotating the screw 301. Through adopting threaded connection, can conveniently and adjust the distance of extension accurately.
Wherein, the sleeve 302 may be disposed on one side of the sliding block 20 facing the fixing plate 10, or may be disposed on one side of the sliding block 20 facing away from the fixing plate 10, which is not limited by the present invention.
Preferably, the sleeve 302 is a cylindrical sleeve.
In another embodiment, the drive device 30 includes a nut (not shown) and a screw (not shown). The nut is rotatably clamped on the fixing plate 10, the screw is fixedly arranged on one side of the sliding block 20, and the screw is in threaded connection with the nut. The screw can then be driven along the chute 102 by turning the nut.
Wherein, the screw rod can be set up on one side of slider 20 towards fixed plate 10, also can set up on one side of slider 20 dorsad fixed plate 10, the utility model discloses do not use this as the limit.
In one embodiment, as shown in fig. 2, flanges 104 are disposed on two sides of the fixing plate 10 in the length direction, and the sliding block 20 is locked in the sliding slot 102 by the flanges 104 to prevent the sliding block 20 from separating from the sliding slot 102.
In this embodiment, a plurality of first fixing holes 101 penetrate the flange 104 and the fixing plate 10 to further improve the stability of the screw when fixing the bone by the screw.
In one embodiment, as shown in fig. 1, the first fixing holes 101 are respectively disposed at both sides of the fixing plate 10 in the length direction, and are symmetrically disposed at both ends in the length direction.
Further, the number of the first fixing holes 101 is 16 to 24, and the first fixing holes 101 are provided as screw holes to fix the proximal end and the distal end of the affected part of the tibia by screws.
In one embodiment, the number of the second fixing holes 201 is 6 to 10, and the second fixing holes 201 are provided as threaded holes to fix the bone moving blocks by screws.
Further, the screws penetrate through the through slots 103 arranged on the fixing plate 10 and enter into the human body, so that the bone block for bone moving is fixed.
In one embodiment, the fixed plate 10 is provided with a scale (not shown) to facilitate observation of the distance the slider 20 moves.
Preferably, the scale is provided along the length of the fixing plate 10.
The utility model discloses an external bone extender of shin bone, it is small, it is less to patient's normal life influence among the recovered process, stability is high, and the bone section skew is little, and treatment is good.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (10)
1. An external tibial bone extender, comprising: a fixed plate, a slide block and a driving device;
the fixing plate is provided with a plurality of first fixing holes which penetrate through the fixing plate so as to fix the tibia through the first fixing holes;
a sliding groove is formed in the length direction of the fixing plate, the sliding block is connected to the sliding groove in a sliding mode, and a plurality of second fixing holes are formed in the sliding block;
the driving device is arranged on the fixed plate and connected to the sliding block so as to drive the sliding block to slide along the length direction of the fixed plate.
2. The external tibial bone extender of claim 1, wherein a through slot is formed in the fixing plate, and the through slot is formed along a length direction of the fixing plate.
3. The external tibial bone extender of claim 1 or 2, wherein said drive means comprises a screw and a sleeve;
the screw rod is rotatably connected to the fixing plate, and the sleeve is fixedly connected to one side of the sliding block;
the screw rod stretches into in the sleeve, be provided with on the sleeve inner wall with the screw thread that the screw rod matches.
4. The external tibial bone extender of claim 1 or 2, wherein said drive means comprises a screw and nut;
the screw rod is fixedly connected to one side of the sliding block, and the nut is rotatably connected to the fixing plate;
the screw rod is in threaded connection with the nut.
5. The external tibial bone extender of claim 1, wherein said first fixing holes are respectively formed at both sides of said fixing plate in a length direction, and are symmetrically formed along both ends of said length direction.
6. The external tibial bone extender of claim 5, wherein said second plurality of fixation holes are symmetrically disposed along both sides of the length of said slider.
7. The external tibial bone extender of claim 6, wherein said first fixing holes are 16-24, said second fixing holes are 6-10, and said first fixing holes and said second fixing holes are threaded.
8. The external tibial bone extender of claim 1, wherein flanges are provided on both sides of the fixing plate in the length direction, so that the sliding block is engaged in the sliding groove.
9. The external tibial bone extender of claim 8, wherein a plurality of said first fixation holes extend through said flange and said fixation plate.
10. The external tibial bone extender of claim 1, wherein said fixation plate has graduations disposed thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220078389.1U CN217510578U (en) | 2022-01-12 | 2022-01-12 | External bone extender of shin bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220078389.1U CN217510578U (en) | 2022-01-12 | 2022-01-12 | External bone extender of shin bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217510578U true CN217510578U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220078389.1U Active CN217510578U (en) | 2022-01-12 | 2022-01-12 | External bone extender of shin bone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217510578U (en) |
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2022
- 2022-01-12 CN CN202220078389.1U patent/CN217510578U/en active Active
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