CN103479417A - Distal tibiofibular syndesmosis hinge type flexible fixing device - Google Patents
Distal tibiofibular syndesmosis hinge type flexible fixing device Download PDFInfo
- Publication number
- CN103479417A CN103479417A CN201310476609.1A CN201310476609A CN103479417A CN 103479417 A CN103479417 A CN 103479417A CN 201310476609 A CN201310476609 A CN 201310476609A CN 103479417 A CN103479417 A CN 103479417A
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- China
- Prior art keywords
- screw
- hinge type
- tibia
- universal
- fibula
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
Abstract
The invention discloses a distal tibiofibular syndesmosis hinge type flexible fixing device. The distal tibiofibular syndesmosis hinge type flexible fixing device comprises a universal fibula screw and a tibia screw, wherein the inner portion of the tibia screw is hollow, the tibia screw is connected with a first pressing nail and a second pressing nail, an integral ball socket hole is formed in an end portion of the tibia screw after the tibia screw is connected with the first pressing nail, one end of the universal fibula screw is a ball-shaped head portion, and the ball-shaped head portion is connected into the ball socket hole to form hinge type connection. The distal tibiofibular syndesmosis hinge type flexible fixing device is clinically used for treating distal tibiofibular fractures and distal tibiofibular syndesmosis separation diseases and is a flexible internal fixation device which conforms to human biomechanics. The ball-shaped head portion of the universal fibula screw is connected into the ball socket hole of the tibia screw, the integral ball-shaped hinge type connection is formed through the first pressing nail, and therefore the requirement that the universal tibia screw has enough mobility in any direction can be met. Stable internal fixation can be provided for distal tibiofibular syndesmosis, meanwhile, the requirement of tibiofibular syndesmosis for normal physiological activities can be met, and no nail breaking phenomenon can be produced.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of human body inner fixer, be specifically related to lower tibiofibula associating hinge type flexible retainer for a kind of orthopaedics.
Background technology
Ankle joint is all bearing very large load in standing, walk, run under the postures such as jumping of people, and integrity and stability that lower tibiofibula is combined maintaining ankle joint are significant.Sprained ankle often separates with lower tibiofibula, after resetting, maintains firm fixing comparatively difficulty, usually uses screw, steel bolt, steel plate to add the method that screw etc. rigidly fixes.And fibula has certain activity with respect to tibia, the strong interior fixing normal physiological activity that will hinder lower tibiofibula, make ankle joint can not obtain early exercise, even causes even screw extraction of bone pressure necrosis, screw loosening, operative failure.
When distal tibial fracture and sprained ankle, the fixing blood supply disorder that can cause surrounding tissue of ankle joint, tissue ischemia, anoxia can cause the useless property the used variation of joint capsule, ligament, periarticular tissue and bone, finally cause fibrous ankylosis and the functional disorder in joint.Therefore, the fixing of ankle joint need to keep peroneotibial normal fine motion.
Summary of the invention
The present invention is exactly in order to solve above-mentioned the problems of the prior art, provides after a kind of can resetting to the lower tibiofibula combined separation to play effectively fixingly, can meet again the lower tibiofibula associating hinge type flexible retainer of the normal physiological fine motion demand of shin calf associating.
In order to achieve the above object, the present invention adopts following technical scheme:
Lower tibiofibula associating hinge type flexible retainer of the present invention, comprise universal fibula screw and tibia screw, tibia screw inner hollow, and be connected with the first nail pressing and the second nail pressing; The tibia screw is connected rearward end and forms a complete ball-and-socket hole with the first nail pressing, an end of universal fibula screw is spherical head, and spherical head is connected in the ball-and-socket hole, forms hinge type and connects; Leave gap between the hole wall in spherical head and ball-and-socket hole.
The spherical head of described universal fibula screw forms interior hexagonal hole.
Be provided with the long sharp screw thread of buckleing on the outer surface of described tibia screw.
The inner surface of described tibia screw is provided with flat thread, by flat thread, with the first nail pressing, with the second nail pressing, is connected.
Described the first nail pressing is formed with interior hexagonal hole vertically.
One end of described the second nail pressing is formed with interior hexagonal hole.
Advantage and good effect that the present invention has are:
Lower tibiofibula associating hinge type flexible retainer of the present invention, be used for the treatment of lower tibiofibula fracture and lower tibiofibula combined separation disease clinically, is a kind of flexible inner fixing device that meets body biomechanics.The spherical head of universal fibula screw is connected in the ball-and-socket hole of tibia screw, has formed complete spherical linkage formula by the first nail pressing and has connected, and can meet universal fibula screw has sufficient mobility in any direction.Both can make lower tibiofibula combine and obtain stable interior fixing, meet again the normal physiological activity of lower tibiofibula associating simultaneously, and can not produce the broken nail phenomenon.Use hinge type flexible retainer of the present invention, operation process is simple to operate, save time, facilitate, effectively.
The accompanying drawing explanation
Fig. 1 is the structural representation of lower tibiofibula associating hinge type flexible retainer of the present invention;
Fig. 2 is the structural representation of universal fibula screw of the present invention;
Fig. 3 is the structural representation of tibia screw of the present invention;
Fig. 4 is the using state schematic diagram of flexible retainer of the present invention.
Critical piece symbol description in accompanying drawing:
1. universal fibula screw 2. first nail pressings
3. tibia screw 4. second nail pressings
5. ball-and-socket hole 6. spherical head
7. interior hexagonal hole 8. length are detained sharp screw thread
9. flat thread 10. tibias
11. fibula.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, lower tibiofibula associating hinge type flexible retainer of the present invention is described further.Following each embodiment is not only limitation of the present invention for the present invention is described.
Fig. 1 is the structural representation of lower tibiofibula associating hinge type flexible retainer of the present invention.As shown in Figure 1, lower tibiofibula associating hinge type flexible retainer of the present invention, comprise universal fibula screw 1 and tibia screw 3.Tibia screw 3 inner hollow, and be connected with the first nail pressing 2 and the second nail pressing 4.Tibia screw 3 is connected rearward end and forms a complete ball-and-socket hole 5 with the first nail pressing 2, an end of universal fibula screw 1 is spherical head 6, and spherical head 6 is connected in ball-and-socket hole 6, forms hinge type and connects.
The first nail pressing 2 is formed with interior hexagonal hole vertically, is provided with flat thread on periphery wall.Be provided with flat thread on the larger end periphery wall of the diameter of the second nail pressing 4, inside is formed with interior hexagonal hole.
Fig. 2 is the structural representation of universal fibula screw of the present invention.As shown in Figure 2, an end of universal fibula screw 1 is spherical head 6, hexagonal hole 7 in the spherical head 6 of universal fibula screw 1 forms.The interior hexagonal hole of universal fibula screw spherical head is identical with the interior hexagonal hole of the first nail pressing, during installation, uses a kind of special-purpose six side's apparatuses to complete, and operation technique is saved time simply again.
Fig. 3 is the structural representation of tibia screw of the present invention.Be provided with length on the outer surface of tibia screw 3 and buckle sharp screw thread 8, after installation, spongy bone is had to good hold, to fracture, can play good fixation.The inner surface of tibia screw 3 is provided with flat thread 9, and flat thread 9 and the first nail pressing 2 screw and are connected with flat thread on the second nail pressing 4 periphery walls.Flat thread can bear larger axial force than regular screw threads, after the first nail pressing and the second nail pressing screw, limit universal fibula screw and can not produce lateral displacement, locking property and the anti-performance that releases are very superior, and to lower tibiofibula, separation is played strong horizontal fixation after resetting.
Form a complete ball-and-socket hole after tibia screw 3 and the first nail pressing 2 assemblings, with the bulb of universal fibula screw 1, coincide, for the same centre of sphere, form movingly, and there is certain gap between spherical head 5 and the first nail pressing 2, universal fibula screw 1 can freely rotate, but range of activity is controlled.Button-head hinge formula connection simultaneously makes universal fibula screw 1 and tibia screw 3 that good centering be arranged, and without doctor's superb mounting technique, operation is installed accurately convenient again.
The present invention is according to the bone footpath difference of different people, and the tibia screw length is designed to 10 specifications, mono-grade of every 2mm, corresponding 10 specifications, mono-grade of every 2mm, the length L=40mm-58mm of being designed to of product length.Operation can be selected suitable specification for each individuality, thereby the psychological need of each human body skeleton of more fitting makes therapeutic effect more desirable.
Lower tibiofibula associating hinge type flexible retainer of the present invention adopts hinge type to connect, universal fibula screw adopts the spherical linkage formula to be connected with the tibia screw, after Operation, can laterally lift fixing peroneotibial relative position, can meet the convalescence after Miles operation patient's activity need again, universal fibula screw can freely rotate, thereby realizes the physiological characteristics of peroneotibial relative displacement.
Fig. 4 is the using state schematic diagram of flexible retainer of the present invention.As shown in Figure 4, of the present invention to install and use process as follows: in art, first on the lower tibiofibula bone, by the same center line, punch, use the depth measurement apparatus to measure the bone footpath, choose the tibia screw of suitable specification, adopt nail apparatus on special-purpose six sides that universal fibula screw, the first nail pressing and tibia set screws are dressed up to one.At first universal fibula screw is packed in the ball-and-socket hole of tibia screw, the bulb of universal fibula screw and interior ball-and-socket hole are coincide.Screw in the first nail pressing to bottom, with the tibia screw, form complete interior ball-and-socket, match with the bulb of universal fibula screw, formed complete spherical linkage formula by the first nail pressing and connected, can meet universal fibula screw has sufficient mobility in any direction.When the first nail pressing is threaded to the bottom, hole, the bulb of the first nail pressing and universal fibula screw forms certain gap, meets the fine motion of universal fibula screw, and without doctor's manual control.To assemble the all-in-one-piece screw assembly simultaneously through the lower tibiofibula bone, the lower tibiofibula bone will be fixed.Then screw in the second nail pressing locking, by the first and second nail pressing double lockings, guarantee that universal fibula screw can not get loose.Installation, very simple and effective.
Universal fibula screw and first nail pressing of this device are designed to identical interior hexagonal hole, during by dress, use a kind of special-purpose six side's apparatuses to hold simultaneously, and universal fibula screw and tibia screw are coaxial, guarantee that the installation direction of universal fibula screw and position are controlled.Operation technique simply, reliably save time again.
Lower tibiofibula associating hinge type flexible retainer of the present invention, structural design is ingenious, after Operation, can implement the lower tibiofibula place of associating flexible fixing, both fix peroneotibial relative position, and had and laterally lift fixing effect, can meet again the demand of the convalescence after Miles operation patient activity.Universal fibula screw provides the relative displacement that makes the lower tibiofibula associating.This flexible retainer is good to the centrifugation of curing the lower tibiofibula bone.
Claims (6)
1. a lower tibiofibula is combined the hinge type flexible retainer, and it is characterized in that: this flexible retainer comprises universal fibula screw (1) and tibia screw (3), tibia screw (3) inner hollow, and be connected with the first nail pressing (2) and the second nail pressing (4); Tibia screw (3) is connected rearward end and forms a complete ball-and-socket hole (5) with the first nail pressing (2), an end of universal fibula screw (1) is spherical head (6), and spherical head (6) is connected in ball-and-socket hole (5), forms hinge type and connects; Leave gap between the hole wall of spherical head (6) and ball-and-socket hole (5).
2. lower tibiofibula associating hinge type flexible retainer according to claim 1, is characterized in that: hexagonal hole (7) in the spherical head (6) of universal fibula screw (1) forms.
3. lower tibiofibula associating hinge type flexible retainer according to claim 1, is characterized in that: be provided with the long sharp screw thread (8) of buckleing on the outer surface of tibia screw (3).
4. lower tibiofibula according to claim 1 is combined the hinge type flexible retainer, and it is characterized in that: the inner surface of tibia screw (3) is provided with flat thread (9), by flat thread, with the first nail pressing (2), with the second nail pressing (4), is connected.
5. lower tibiofibula according to claim 4 is combined the hinge type flexible retainer, and it is characterized in that: the first nail pressing (2) is formed with interior hexagonal hole vertically.
6. lower tibiofibula according to claim 4 is combined the hinge type flexible retainer, and it is characterized in that: an end of the second nail pressing (4) is formed with interior hexagonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476609.1A CN103479417B (en) | 2013-10-14 | 2013-10-14 | Inferior tibiofibular joint hinge type flexible retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310476609.1A CN103479417B (en) | 2013-10-14 | 2013-10-14 | Inferior tibiofibular joint hinge type flexible retainer |
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| Publication Number | Publication Date |
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| CN103479417A true CN103479417A (en) | 2014-01-01 |
| CN103479417B CN103479417B (en) | 2015-08-26 |
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| CN201310476609.1A Active CN103479417B (en) | 2013-10-14 | 2013-10-14 | Inferior tibiofibular joint hinge type flexible retainer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111407468A (en) * | 2020-03-05 | 2020-07-14 | 西安交通大学医学院第二附属医院 | High-density surface orthopedic metal implant |
| CN114376701A (en) * | 2021-12-21 | 2022-04-22 | 长春圣博玛生物材料有限公司 | High-strength screw |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5037426A (en) * | 1988-09-19 | 1991-08-06 | Marlowe Goble E | Procedure for verifying isometric ligament positioning |
| WO1997033537A1 (en) * | 1996-03-13 | 1997-09-18 | Bramlet Dale G | Arthroplasty joint assembly |
| US20020198527A1 (en) * | 2001-06-21 | 2002-12-26 | Helmut Muckter | Implantable screw for stabilization of a joint or a bone fracture |
| CN1925805A (en) * | 2004-03-26 | 2007-03-07 | 斯恩蒂斯有限公司 | Articulated bone screw |
| US20130096624A1 (en) * | 2010-04-06 | 2013-04-18 | Seaspine, Inc. | System and methods for correcting spinal deformities |
| CN203483489U (en) * | 2013-10-14 | 2014-03-19 | 天津正天医疗器械有限公司 | Distal tibiofibular syndesmosis hinge type flexible fixator |
-
2013
- 2013-10-14 CN CN201310476609.1A patent/CN103479417B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5037426A (en) * | 1988-09-19 | 1991-08-06 | Marlowe Goble E | Procedure for verifying isometric ligament positioning |
| WO1997033537A1 (en) * | 1996-03-13 | 1997-09-18 | Bramlet Dale G | Arthroplasty joint assembly |
| US20020198527A1 (en) * | 2001-06-21 | 2002-12-26 | Helmut Muckter | Implantable screw for stabilization of a joint or a bone fracture |
| CN1925805A (en) * | 2004-03-26 | 2007-03-07 | 斯恩蒂斯有限公司 | Articulated bone screw |
| US20130096624A1 (en) * | 2010-04-06 | 2013-04-18 | Seaspine, Inc. | System and methods for correcting spinal deformities |
| CN203483489U (en) * | 2013-10-14 | 2014-03-19 | 天津正天医疗器械有限公司 | Distal tibiofibular syndesmosis hinge type flexible fixator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111407468A (en) * | 2020-03-05 | 2020-07-14 | 西安交通大学医学院第二附属医院 | High-density surface orthopedic metal implant |
| CN114376701A (en) * | 2021-12-21 | 2022-04-22 | 长春圣博玛生物材料有限公司 | High-strength screw |
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| Publication number | Publication date |
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| CN103479417B (en) | 2015-08-26 |
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