CN103479417B - Inferior tibiofibular joint hinge type flexible retainer - Google Patents
Inferior tibiofibular joint hinge type flexible retainer Download PDFInfo
- Publication number
- CN103479417B CN103479417B CN201310476609.1A CN201310476609A CN103479417B CN 103479417 B CN103479417 B CN 103479417B CN 201310476609 A CN201310476609 A CN 201310476609A CN 103479417 B CN103479417 B CN 103479417B
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- Prior art keywords
- screw
- nail pressing
- universal
- hinge type
- tibia
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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 kind of Inferior tibiofibular joint hinge type flexible retainer, comprise universal fibula screw and tibia screw, tibia screw inner hollow, and be connected with the first nail pressing and the second nail pressing; Tibia screw is connected rearward end and forms a complete ball-and-socket hole with the first nail pressing, one end of universal fibula screw is spherical head, and spherical head is connected in ball-and-socket hole, forms hinge type and connects.Inferior tibiofibular joint hinge type flexible retainer of the present invention, being used for the treatment of lower tibiofibula fracture and Inferior tibiofibular syndesmosis split disease clinically, is a kind of flexible inner fixing device meeting body biomechanics.The spherical head of universal fibula screw is connected in the ball-and-socket hole of tibia screw, defines complete spherical linkage formula connect by the first nail pressing, and can meet universal fibula screw has sufficient mobility in any direction.Both Inferior tibiofibular joint can have been made to obtain stable internal fixtion, met again the normal physiological activity of Inferior tibiofibular joint simultaneously, broken nail phenomenon can not 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 a kind of orthopaedics Inferior tibiofibular joint hinge type flexible retainer.
Background technology
Ankle joint the standing of people, walk, run the postures such as jumping under all subject very large load, Inferior tibiofibular joint is significant to the integrity and stability that maintain ankle joint.Sprained ankle, often with Distal tibiofibular diastasis, after reset, 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 relative to tibia, strong internal fixtion, by hindering the normal physiological activity of lower tibiofibula, makes ankle joint not obtain early exercise, even causes bone pressure necrosis, screw loosening even screw extraction, 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 change of joint capsule, ligament, periarticular tissue and bone, finally cause fibrous ankylosis and the functional disorder in joint.Therefore, ankle joint fixedly need keep peroneotibial normal fine motion.
Summary of the invention
The present invention is exactly to solve above-mentioned the problems of the prior art, provides after one can reset to Inferior tibiofibular syndesmosis split and plays effective fixing, can meet again the Inferior tibiofibular joint 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:
Inferior tibiofibular joint hinge type flexible retainer of the present invention, comprises universal fibula screw and tibia screw, tibia screw inner hollow, and is connected with the first nail pressing and the second nail pressing; Tibia screw is connected rearward end and forms a complete ball-and-socket hole with the first nail pressing, one end of universal fibula screw is spherical head, and spherical head is connected in ball-and-socket hole, forms hinge type and connects; Gap is left between the hole wall in spherical head and ball-and-socket hole.
The spherical head of described universal fibula screw forms interior hexagonal hole.
The outer surface of described tibia screw is provided with length and buckles sharp screw thread.
The inner surface of described tibia screw is provided with flat thread, is connected with the first nail pressing and the second nail pressing by flat thread.
The first described nail pressing is formed with interior hexagonal hole vertically.
One end of the second described nail pressing is formed with interior hexagonal hole.
The advantage that the present invention has and good effect are:
Inferior tibiofibular joint hinge type flexible retainer of the present invention, being used for the treatment of lower tibiofibula fracture and Inferior tibiofibular syndesmosis split disease clinically, is a kind of flexible inner fixing device meeting body biomechanics.The spherical head of universal fibula screw is connected in the ball-and-socket hole of tibia screw, defines complete spherical linkage formula connect by the first nail pressing, and can meet universal fibula screw has sufficient mobility in any direction.Both Inferior tibiofibular joint can have been made to obtain stable internal fixtion, met again the normal physiological activity of Inferior tibiofibular joint simultaneously, broken nail phenomenon can not be produced.Use hinge type flexible retainer of the present invention, operation process is simple to operate, save time, facilitate, effectively.
Accompanying drawing explanation
Fig. 1 is the structural representation of Inferior tibiofibular joint 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 pressing
3. tibia screw 4. second nail pressing
5. ball-and-socket hole 6. spherical head
7. the sharp screw thread of the long button of hexagonal hole 8. in
9. flat thread 10. tibia
11. fibulas.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, Inferior tibiofibular joint hinge type flexible retainer of the present invention is described further.Following each embodiment is not only limitation of the present invention for illustration of the present invention.
Fig. 1 is the structural representation of Inferior tibiofibular joint hinge type flexible retainer of the present invention.As shown in Figure 1, Inferior tibiofibular joint hinge type flexible retainer of the present invention, 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, one 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.
First nail pressing 2 is formed with interior hexagonal hole vertically, and periphery wall is provided with flat thread.Diameter larger one end periphery wall of the second nail pressing 4 is provided with flat thread, and 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, one end of universal fibula screw 1 is spherical head 6, and the spherical head 6 of universal fibula screw 1 forms interior hexagonal hole 7.The interior hexagonal hole of universal fibula screw spherical head is identical with the interior hexagonal hole of the first nail pressing, and during installation, use a kind of special six side's apparatuses to complete, operation technique is saved time simply again.
Fig. 3 is the structural representation of tibia screw of the present invention.The outer surface of tibia screw 3 is provided with length and buckles sharp screw thread 8, after installation, have good hold to spongy bone, good fixation can be played to fracture.The inner surface of tibia screw 3 is provided with flat thread 9, and flat thread 9 screws with the flat thread on the first nail pressing 2 and the second nail pressing 4 periphery wall and is connected.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 is very superior with the anti-performance that releases, and plays strong horizontal fixation after resetting to Distal tibiofibular diastasis.
Tibia screw 3 and the first nail pressing 2 assemble the complete ball-and-socket hole of rear formation one, coincide with the bulb of universal fibula screw 1, for the same centre of sphere, form dynamic cooperation, and certain gap is there is 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 have good centering, without the need to the superb mounting technique of doctor, operation is installed and accurately facilitates again.
The present invention is according to the bone footpath difference of different people, and tibia screw length is designed to 10 specifications, every 2mm mono-grade, and product length is corresponding is designed to 10 specifications, every 2mm mono-grade, length L=40mm-58mm.Operation can select suitable specification for each individuality, thus the psychological need of each skeleton of more fitting, make therapeutic effect more desirable.
Inferior tibiofibular joint hinge type flexible retainer of the present invention adopts hinge type to connect, universal fibula screw and tibia screw adopt spherical linkage formula to be connected, after Operation, namely fixing peroneotibial relative position can laterally be lifted, the activity need of the convalescence after Miles operation patient can be met again, universal fibula screw can freely rotate, thus 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 punched by same center line on lower tibiofibula bone, depth measurement apparatus is used to measure bone footpath, choose the tibia screw of suitable specification, adopt and special six sides follow closely apparatus and universal fibula screw, the first nail pressing and tibia set screws are dressed up one.First universal fibula screw is loaded 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 tibia screw formed complete in ball-and-socket, match with the bulb of universal fibula screw, define complete spherical linkage formula connect by the first nail pressing, can meet universal fibula screw has sufficient mobility in any direction.When the first nail pressing is threaded to 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 the need to the Non-follow control of doctor.All-in-one-piece screw assembly will be assembled simultaneously through lower tibiofibula bone, lower tibiofibula bone will be fixed.Then screw in the second nail pressing and lock, by the first and second nail pressing double lockings, guaranteeing that universal fibula screw can not get loose.Installation, very simply and effectively.
The universal fibula screw of this device and the first nail pressing are designed to identical interior hexagonal hole, by using a kind of special six side's apparatuses to hold during dress simultaneously, universal fibula screw and tibia screw coaxial, guarantee the installation direction of universal fibula screw and position controlled.Operation technique is simple, reliably save time again.
Inferior tibiofibular joint hinge type flexible retainer of the present invention, smart structural design, after Operation, can implement flexible fixing to Inferior tibiofibular joint place, both fixed peroneotibial relative position, and had the effect that laterally lift is fixing, the demand of the convalescence after Miles operation patient activity can be met again.Universal fibula screw provides the relative displacement making Inferior tibiofibular joint.This flexible retainer is good to the centrifugation of curing lower tibiofibula bone.
Claims (6)
1. an Inferior tibiofibular joint hinge type flexible retainer, comprises universal fibula screw (1) and tibia screw (3), it is characterized in that: tibia screw (3) inner hollow, and is 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), one 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; Gap is left between the hole wall of spherical head (6) and ball-and-socket hole (5).
2. Inferior tibiofibular joint hinge type flexible retainer according to claim 1, is characterized in that: the spherical head (6) of universal fibula screw (1) forms interior hexagonal hole (7).
3. Inferior tibiofibular joint hinge type flexible retainer according to claim 1, is characterized in that: the outer surface of tibia screw (3) is provided with length and buckles sharp screw thread (8).
4. Inferior tibiofibular joint hinge type flexible retainer according to claim 1, is characterized in that: the inner surface of tibia screw (3) is provided with flat thread (9), is connected with the first nail pressing (2) and the second nail pressing (4) by flat thread.
5. Inferior tibiofibular joint hinge type flexible retainer according to claim 4, is characterized in that: the first nail pressing (2) is formed with interior hexagonal hole vertically.
6. Inferior tibiofibular joint hinge type flexible retainer according to claim 4, is characterized in that: one 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 CN103479417A (en) | 2014-01-01 |
| CN103479417B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111407468B (en) * | 2020-03-05 | 2022-02-22 | 西安交通大学医学院第二附属医院 | High-density surface orthopedic metal implant |
| CN114376701B (en) * | 2021-12-21 | 2023-02-14 | 长春圣博玛生物材料有限公司 | High-strength screw |
Citations (4)
| 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 |
| CN1925805A (en) * | 2004-03-26 | 2007-03-07 | 斯恩蒂斯有限公司 | Articulated bone screw |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10129490A1 (en) * | 2001-06-21 | 2003-01-02 | Helmut Mueckter | Implantable screw for stabilization of joint or bone fracture, has flexible shaft which interconnects proximal head portion and distal insertion portion of elongated screw body |
| US9138261B2 (en) * | 2010-04-06 | 2015-09-22 | Seaspine, Inc. | System and methods for correcting spinal deformities |
-
2013
- 2013-10-14 CN CN201310476609.1A patent/CN103479417B/en active Active
Patent Citations (4)
| 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 |
| CN1925805A (en) * | 2004-03-26 | 2007-03-07 | 斯恩蒂斯有限公司 | Articulated bone screw |
| 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 |
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| CN103479417A (en) | 2014-01-01 |
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