CN102783998A - Hinge type dragging external fixing device - Google Patents
Hinge type dragging external fixing device Download PDFInfo
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- CN102783998A CN102783998A CN2012101551290A CN201210155129A CN102783998A CN 102783998 A CN102783998 A CN 102783998A CN 2012101551290 A CN2012101551290 A CN 2012101551290A CN 201210155129 A CN201210155129 A CN 201210155129A CN 102783998 A CN102783998 A CN 102783998A
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Abstract
The invention discloses a hinge type dragging external fixing device which comprises two parallel screws, a rotating central pin, a maintaining reset pin, a fixing dragging pin and nuts. Sliding grooves are arranged along the axial direction of the screws, and installing through holes are arranged at the bottoms of the screws. Two ends of the rotating central pin are inserted in the installing through holes of the screws respectively, and the rotating central pin penetrates through the center of a lateral side of a near finger joint bone. Two ends of the maintaining reset pin are inserted in the sliding grooves respectively, and the maintaining reset pin transversely penetrates through the center of a lateral side of a near end of a middle finger joint bone. Two ends of the fixing dragging pin are inserted in the sliding grooves of the two screws respectively, and the fixing dragging pin transversely penetrates through the center of the lateral side of a far end of the middle finger joint bone. The nuts are matched with threads of the screws and used for limiting positions of the fixing dragging pin and the maintaining reset pin respectively. The hinge type dragging external fixing device can maintain centrality reset of joints and prevent the joints from dislocating again. By means of the device, functional training can be conducted early, and active stretching movement of the joints can be conducted on the same day after operation so as to be favorable for fast healing of joint articular cartilages and fast recovery of joint functions. The device is light in appearance, easy to operate and easy in clinical popularization.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly, relate to a kind of hinge type traction external fixer.
Background technology
At present, fracture or fracture companion dislocation in the finger proximal phalangeal joints, the treatment difficulty, traditional internal fixation device such as Kirschner wire and plate screw can't be accomplished anatomical reduction and strong internal fixation for overground fracture, postoperative can't early ambulant, unsatisfactory curative effect.Miniature external fixer keeps normal joint space when can keep embolia, but can not early functional exercise, and effect is not good yet.
Therefore, how can keep the joint and the reduction of the fracture stable in, carry out the joint active movement, become the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of hinge type traction external fixer, with can keep the joint and the reduction of the fracture stable in, carry out the joint active movement.
For realizing above-mentioned purpose, the present invention provides following technical scheme:
A kind of hinge type traction external fixer comprises:
Screw rod is two, and is arranged in parallel, and said screw rod axial arrangedly has a chute along it, and the bottom of said screw rod offers installation through holes;
Two ends are inserted in respectively in the installation through holes of two said screw rods, are used to cross the center of rotation pin at center, proximal phalanx head side;
Two ends are inserted in respectively in the chute of two said screw rods, are used to cross the pin that resets of keeping at center, middle phalanx near-end side;
Two ends are inserted in respectively in the chute of two said screw rods, are used to cross the fixed traction pin at center, middle phalanx far-end side;
Cooperate with said screw flight, be respectively applied for said fixed traction pin of restriction and the said nut of keeping the pin position that resets.
Preferably, in above-mentioned hinge type traction external fixer, also comprise the reinforcement stabilization needle, the two ends of said reinforcement stabilization needle are inserted in respectively in the chute of two said screw rods, and are positioned at the top of said chute, and said reinforcement stabilization needle is fixed through nut.
Preferably, in above-mentioned hinge type traction external fixer, said center of rotation pin, keep the pin that resets, said reinforcement stabilization needle and said fixed traction pin and be arranged in parallel.
Preferably, in above-mentioned hinge type traction external fixer, said center of rotation pin, keep the pin that resets, said reinforcement stabilization needle and said fixed traction pin and be Kirschner wire.
Preferably, in above-mentioned hinge type traction external fixer, the length of said screw rod is 80mm, and pitch is 1mm, and the engineering diameter is 4mm, and the depth of thread is 0.4mm.
Preferably, in above-mentioned hinge type traction external fixer, the long end of said chute is 75mm, and width is 1.2mm, and said installation through holes diameter is 1.2mm, and said chute and installation through holes are positioned at same plane.
Preferably, in above-mentioned hinge type traction external fixer, said center of rotation pin, keep the Kirschner wire that the pin that resets, said reinforcement stabilization needle and said fixed traction pin are diameter 1.2mm.
Can find out that from above-mentioned technical scheme hinge type traction external fixer provided by the invention can provide lasting pull strength to proximal phalangeal joints, thereby keep the natural joint gap.The normal tension that this both can recover joint capsule and side para-ligament prevents the contracture of joint capsule and side para-ligament effectively, can alleviate the joint load again, eliminates stress, the quickly-healing that help fracture and the functional rehabilitation of hands of the joint other end to fracture end.The centration that the present invention can keep the joint resets, and can prevent that the joint from dislocating once more.And functional exercise early, carried out the activity of initiatively bending and stretching in joint after surgery the same day, and this quickly-healing and function of joint that helps articular cartilage is recovered as early as possible.Profile of the present invention is light and handy, and is simple to operate, is easy to clinical expansion.
Description of drawings
The hinge type that Fig. 1 provides for the embodiment of the invention draws the structural representation of external fixer;
The cutaway view of the screw rod that Fig. 2 provides for the embodiment of the invention.
The specific embodiment
The invention discloses a kind of hinge type traction external fixer, with can keep the joint and the reduction of the fracture stable in, carry out the joint active movement.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
See also Fig. 1 and Fig. 2, the cutaway view of the screw rod that the structural representation of the hinge type traction external fixer that Fig. 1 provides for the embodiment of the invention, Fig. 2 provide for the embodiment of the invention.
The disclosed hinge type of embodiment of the invention traction external fixer is mainly used in fracture or fracture companion dislocation in the finger proximal phalangeal joints, can keep the joint and the reduction of the fracture stable in, carry out the joint active movement.This hinge type traction external fixer comprises screw rod 1, center of rotation pin 5, keeps the pin 4 that resets, fixed traction pin 3 and strengthen stabilization needle 2.
Wherein, screw rod 1 is two, and is arranged in parallel, and said screw rod 1 axial arrangedly has a chute 11 along it, and the bottom of said screw rod 1 offers installation through holes 12.
The two ends of center of rotation pin 5 are inserted in respectively in the installation through holes 12 of two screw rods 1; Be that side para-ligament starting point (anteroposterior position X-ray sheet shows the bone property projection small in ends of proximal phalanx neck) is parallel to proximal phalangeal joints and penetrates in center, proximal phalanx head side; Center of rotation pin 5 passes in the installation through holes 12 of screw rod 1, and and the both sides screw rod between form hinge arrangement.Effect is 1, countertraction, 2, proximal phalangeal joints stretches and bend when movable as the center.
The two ends of keeping the pin 4 that resets are inserted in respectively in the chute 11 of two screw rods 1, cross center, middle phalanx near-end side, keep that the joint centration resets and the pressurization of sclerite stable.
The two ends of fixed traction pin 3 are inserted in respectively in the chute 11 of two screw rods 1, cross center, middle phalanx far-end side, and traction finger tip during application makes proximal phalangeal joints keep the natural joint gap, plays the fixed traction effect.Nut 6 and screw rod 1 threaded engagement are respectively applied for restriction fixed traction pin 3 and the position of keeping the pin 4 that resets.
Hinge type traction external fixer provided by the invention can provide lasting pull strength to proximal phalangeal joints, thereby keep the natural joint gap.The normal tension that this both can recover joint capsule and side para-ligament prevents the contracture of joint capsule and side para-ligament effectively, can alleviate the joint load again, eliminates stress, the quickly-healing that help fracture and the functional rehabilitation of hands of the joint other end to fracture end.The centration that the present invention can keep the joint resets, and can prevent that the joint from dislocating once more.And functional exercise early, carried out the activity of initiatively bending and stretching in joint after surgery the same day, and this quickly-healing and function of joint that helps articular cartilage is recovered as early as possible.Profile of the present invention is light and handy, and is simple to operate, is easy to clinical expansion.
In order further to optimize technique scheme, the embodiment of the invention also can comprise strengthens stabilization needle 2, and the two ends of strengthening stabilization needle 2 are inserted in respectively in the chute 11 of two screw rods 1, and are positioned at the top of chute 11, strengthens stabilization needle 2 and fixes through nut.Strengthen stabilization needle 2 and be used to strengthen mechanical stability of the present invention.
In the present embodiment, center of rotation pin 5, keep the pin 4 that resets, strengthen stabilization needle 2 and fixed traction pin 3 is arranged in parallel.Center of rotation pin 5, keep the pin 4 that resets, strengthen the Kirschner wire that stabilization needle 2 and fixed traction pin 3 are diameter 1.2mm.
The length of screw rod 1 is 80mm, and pitch is 1mm, and the engineering diameter is 4mm, and the depth of thread is 0.4mm.Wherein, the long end of chute 11 is 75mm, and width is 1.2mm.
Center of rotation pin 5 is arranged in the screw rod 1 bottom installation through holes 12; In center, proximal phalanx head side; Be that side para-ligament starting point (anteroposterior position X-ray sheet shows the bone property projection small in ends of proximal phalanx neck) is parallel to proximal phalangeal joints and penetrates, effect is 1, countertraction 2, proximal phalangeal joints stretch that bend should be as the center when movable.
Keep the pin 4 that resets and be arranged in screw rod 1 chute 11, cross center, middle phalanx near-end side, be used to keep that the joint centration resets and the pressurization of sclerite is stable.
In the present embodiment, center of rotation pin 5 is connected with the hinge form with the installation through holes 12 of both sides screw rod 1 bottom.Center of rotation pin 5, keep reset pin 4 and fixed traction pin 3 and be arranged in parallel, and center of rotation pin 5, keep reset pin 4 and fixed traction pin 3 and be Kirschner wire.
Screw rod 1 and nut 6 are special; Should select roentgenolucent material for use; Center of rotation pin 5 links to each other with the hinge form with the installation through holes 12 of screw rod 1, keep reset pin 4 and fixed traction pin 3 with strengthen stabilization needle 2 and link to each other with screw rod 1 chute 11, and fix with the nut 6 that the screw thread of screw rod 1 is complementary.The length of screw rod 1 is 80mm, and pitch is 1mm, and the engineering diameter is 4mm, and the depth of thread is 0.4mm.Wherein, the long end of chute 11 is 75mm, and width is 1.2mm.
Method for using of the present invention:
1, at first X line perspective location penetrates center of rotation pin 5;
2, center of rotation pin 5 is cut short made it expose the about 6mm of both sides skin outward, the two ends of center of rotation pin 5 are inserted in the installation through holes 12 of two screw rods 1;
3, be parallel to interphalangeal joint far away in the middle phalanx far-end and penetrate fixed traction pin 3, simultaneously the two ends of fixed traction pin 3 are inserted in the chute 11 of both sides screw rod 1;
4, the traction finger tip makes the joint or the reduction of the fracture, and the pull needle that is tightened 3 both sides nuts are fixed traction pin 3 fixedly;
5, dorsal part is unstable if still there is the palm in the joint; Then need unclamp the nut at fixed traction pin 3 two ends; Again after the embolia, between center of rotation pin 5 and fixed traction pin 3, penetrate in the chute 11 through the both sides screw rod and keep the pin 4 that resets then; In X line perspective down after the adjustment pull strength amount, the pull needle that is tightened 3 and keep the nut at pin 4 two ends that reset;
6, will strengthen stabilization needle 2 with nut and be fixed in screw rod farthest in the end slot, be used for strengthening the mechanical stability of this device;
7, at last in X line perspective passive activity joint down, it is big or small to observe fracture and stability of joint and joint space.Adjust as the case may be;
8, second day after operation can carry out initiatively joint stretch bend movable.
Each embodiment adopts the mode of going forward one by one to describe in this description, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (7)
1. a hinge type traction external fixer is characterized in that, comprising:
Screw rod (1) is two, and is arranged in parallel, and said screw rod (1) axial arrangedly has a chute (11) along it, and the bottom of said screw rod (1) offers installation through holes (12);
Two ends are inserted in respectively in the installation through holes (12) of two said screw rods (1), are used to cross the center of rotation pin (5) at center, proximal phalanx head side;
Two ends are inserted in respectively in the chute (11) of two said screw rods (1), and what be used to cross center, middle phalanx near-end side keeps the pin that resets (4);
Two ends are inserted in respectively in the chute (11) of two said screw rods (1), are used to cross the fixed traction pin (3) at center, middle phalanx far-end side;
With said screw rod (1) threaded engagement, be respectively applied for restriction said fixed traction pin (3) and the said nut (6) of keeping the pin that resets (4) position.
2. hinge type traction external fixer according to claim 1; It is characterized in that; Also comprise and strengthen stabilization needle (2); The two ends of said reinforcement stabilization needle (2) are inserted in respectively in the chute (11) of two said screw rods (1), and are positioned at the top of said chute (11), and said reinforcement stabilization needle (2) is fixed through nut.
3. hinge type according to claim 2 traction external fixer is characterized in that, said center of rotation pin (5), keeps the pin that resets (4), said reinforcement stabilization needle (2) and said fixed traction pin (3) and is arranged in parallel.
4. hinge type according to claim 3 traction external fixer is characterized in that, said center of rotation pin (5), keeps the pin that resets (4), said reinforcement stabilization needle (2) and said fixed traction pin (3) and is Kirschner wire.
5. according to each described hinge type traction external fixer of claim 1-4, it is characterized in that the length of said screw rod (1) is 80mm, pitch is 1mm, and the engineering diameter is 4mm, and the depth of thread is 0.4mm.
6. hinge type traction external fixer according to claim 5 is characterized in that the long end of said chute (11) is 75mm, and width is 1.2mm.
7. hinge type according to claim 5 traction external fixer is characterized in that, said center of rotation pin (5), keeps the Kirschner wire that the pin that resets (4), said reinforcement stabilization needle (2) and said fixed traction pin (3) are diameter 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210155129.0A CN102783998B (en) | 2012-05-15 | 2012-05-15 | Hinge type dragging external fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210155129.0A CN102783998B (en) | 2012-05-15 | 2012-05-15 | Hinge type dragging external fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102783998A true CN102783998A (en) | 2012-11-21 |
| CN102783998B CN102783998B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210155129.0A Expired - Fee Related CN102783998B (en) | 2012-05-15 | 2012-05-15 | Hinge type dragging external fixing device |
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| Country | Link |
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| CN (1) | CN102783998B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015089439A (en) * | 2013-11-06 | 2015-05-11 | 国立大学法人名古屋大学 | External skeletal fixation device for finger joint bone fracture therapy |
| CN109044510A (en) * | 2018-06-26 | 2018-12-21 | 叶智江 | Phalanges Mini-size external fixer |
| GB2598482A (en) * | 2021-09-07 | 2022-03-02 | Kings Tree Innovations Ltd | External fixator and kit comprising the same |
| CN114617624A (en) * | 2022-03-09 | 2022-06-14 | 四川大学华西医院 | Lifting reduction auxiliary device for femoral shaft fracture operation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685206A1 (en) * | 1994-05-26 | 1995-12-06 | Waldemar Link (GmbH & Co.) | Finger bone fixator |
| FR2855040A1 (en) * | 2003-05-23 | 2004-11-26 | Comptoir Hospitalier Orthopedi | Finger e.g. thumb, bone setting device for treating periarticular fracture, has two parallel pins placed on either side of lesion to be treated, and elastic module including two flasks and moving two pins away from each other |
| CN1579335A (en) * | 2004-05-10 | 2005-02-16 | 左中男 | Sport-type regulatable phalanx external fixing carriage |
| US20110034924A1 (en) * | 2009-08-10 | 2011-02-10 | Virak Tan | Orthopedic external fixator and method of use |
-
2012
- 2012-05-15 CN CN201210155129.0A patent/CN102783998B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685206A1 (en) * | 1994-05-26 | 1995-12-06 | Waldemar Link (GmbH & Co.) | Finger bone fixator |
| FR2855040A1 (en) * | 2003-05-23 | 2004-11-26 | Comptoir Hospitalier Orthopedi | Finger e.g. thumb, bone setting device for treating periarticular fracture, has two parallel pins placed on either side of lesion to be treated, and elastic module including two flasks and moving two pins away from each other |
| CN1579335A (en) * | 2004-05-10 | 2005-02-16 | 左中男 | Sport-type regulatable phalanx external fixing carriage |
| US20110034924A1 (en) * | 2009-08-10 | 2011-02-10 | Virak Tan | Orthopedic external fixator and method of use |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015089439A (en) * | 2013-11-06 | 2015-05-11 | 国立大学法人名古屋大学 | External skeletal fixation device for finger joint bone fracture therapy |
| CN109044510A (en) * | 2018-06-26 | 2018-12-21 | 叶智江 | Phalanges Mini-size external fixer |
| CN109044510B (en) * | 2018-06-26 | 2020-11-20 | 叶智江 | Miniature external fixer for phalanx |
| GB2598482A (en) * | 2021-09-07 | 2022-03-02 | Kings Tree Innovations Ltd | External fixator and kit comprising the same |
| GB2598482B (en) * | 2021-09-07 | 2022-12-21 | Kings Tree Innovations Ltd | External fixator and kit comprising the same |
| WO2023037169A1 (en) | 2021-09-07 | 2023-03-16 | Kings Tree Innovations Limited | External fixator, kit comprising the same, and method of fixation |
| CN114617624A (en) * | 2022-03-09 | 2022-06-14 | 四川大学华西医院 | Lifting reduction auxiliary device for femoral shaft fracture operation |
| CN114617624B (en) * | 2022-03-09 | 2023-05-23 | 四川大学华西医院 | Lifting and resetting auxiliary device for femoral shaft fracture operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102783998B (en) | 2015-05-27 |
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Granted publication date: 20150527 Termination date: 20210515 |