CN205339094U - Point miniature external fixation frame - Google Patents
Point miniature external fixation frame Download PDFInfo
- Publication number
- CN205339094U CN205339094U CN201620065485.7U CN201620065485U CN205339094U CN 205339094 U CN205339094 U CN 205339094U CN 201620065485 U CN201620065485 U CN 201620065485U CN 205339094 U CN205339094 U CN 205339094U
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- pin portion
- fracture
- arm
- screw rod
- adjusting screw
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Abstract
The utility model discloses a point miniature external fixation frame, including the back needle portion that is used for the anterior preceding needle portion of fixed fracture, fixed fracture rear portion, but preceding needle portion and the back needle relative movement of portion and this moving direction and fracture indicate the length direction adaptation of bone, and the preceding needle portion and the relative movement of back needle portion pass through draw gear drive and location. The utility model discloses the structure mainly is applicable to and indicates the bone fracture, indicates the bone cripetura, indicates correction such as bone extension around, needle portion is fixed broken bone front and back portion, and the butt joint is fixed to be connected fixedly to the fracture position, and preceding needle portion can pull in axis of ordinates direction under draw gear's effect with back needle portion and prolong and the cripetura, then still be equipped with rotary positioning device in the needle portion for ascending rotation angle of needle portion axle and location reach the effect of correcting the fracture rotation deformity before adjusting. The realization is to the solid that the indicates bone fracture position correction that resets, moreover this simple structure, light in weight, convenient operation, bear the patient little.
Description
Technical field
This utility model belongs to technical field of medical instruments, especially a kind of finger miniature external fixer for fracture convalescent period or deformity phalanges rectification.
Background technology
At present, hand fractures principle should be reached following 3 requirements: (1) makes every effort to anatomical reduction；(2) light it is firmly fixed again；(3) early ambulant and functional exercise.Clinic currently mainly adopts following three kinds of modes to treat Phalangeal fracture.Fix in the first Kirschner wire.Because it is easy and simple to handle, inexpensive, be always up treatment fracture of metacarpal bone and phalanges of fingers most common method, but its shortcoming to be stability maintenance poor, the bad process of intra-articular fracture, often need to cut interior fixing；Fix in the second miniature steel plate or screw.Miniature steel plate is superior to other internal fixation methods in surface rigidity, the stability of fracture site and union of fracture.But the shortcoming that miniature steel plate is fixed is necessary open reduction, to damaging surrounding tissue greatly, it is unfavorable for the healing fractured, costly, and there is the interior problem fixed of second operation taking-up.For in the fracture of remote joint and intra-articular fracture tend not to application or application poor effect；The third phalanges external fixator Phalangeal fracture.Its advantage: external fixator simple in construction, it is simple to charge and discharge operations, after union of fracture, it is not necessary to second operation removes interior fixing, it is simple to movable fracture site lower articular as early as possible, it is prevented that ankylosis, hands functional rehabilitation early, better function.Applying external fixator in current clinic and be imported product, its common ground is that single armed is fixed, expensive, complicated operation, and fixing nail is often inserted by finger dorsal part or back of the body outside, it is easy to damage tendon, causes adhesion of tendon.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provides a kind of finger miniature external fixer, and this fixed mount has processing ease, both arms fixed traction not easily shifts and has reseting fracture position from stereo directional, and reaches the effect of continuous traction.
To achieve these goals, the technical solution adopted in the utility model is: a kind of finger miniature external fixer, it is characterized in that: include the rear pin portion at the front pin portion for fixing fracture front portion, fixing fracture rear portion, described front pin portion and rear pin portion can relative movement and this moving direction adaptive with the length direction of fracture phalanges, the relative movement in front pin portion and rear pin portion is driven by traction apparatus and positions.
In said structure, the both sides of fracture site are fixed by front pin portion and rear pin portion respectively, simultaneously, before being driven by traction apparatus, pin portion or rear pin portion are axially the pull strength that length direction has controlled persistence along phalanges, and fracture deformity effect is corrected in the rotation realizing small angle range in the radial direction and width of phalanges especially fracture site, and the pull strength performance of this structure balances more, and, easy to operate, simple in construction is light and handy, and patient will not cause big impact.
As further setting of the present utility model, described adjusting screw rod is provided with securing member near position, operating side, and this securing member outer peripheral face is provided with convex tendon spaced apart.
In said structure, securing member is anchored on adjusting screw rod near operating side place, for fastening screw after adjusting screw rod adjustment is appropriate so that it is will not loosen in long-term application；This securing member is screw rod fastener, the similar plum blossom shape of its profile.
As further setting of the present utility model, described traction apparatus includes adjusting screw rod, this adjusting screw rod one end sequentially passes through rear pin portion and front pin portion, adjusting screw rod and front pin portion are in the axial location fit of adjusting screw rod, and be connected in adjusting screw rod radial rotating, adjusting screw rod is threadeded with rear pin portion, and the adjusting screw rod other end constitutes operating side.
In said structure, this traction apparatus has draw, front pin portion is placed in inside rear pin portion, front pin portion is by prelocalization pin and location, fracture of finger front end, rear pin portion is by rear positioning needle and location, fracture of finger rear end, there is relative displacement after being driven by the operating side of rotation adjusting screw rod in this utility model, elongates or shorten the distance between fracture site, playing and treat the effect such as phalanges shortened deformity or phalanges prolongation between pin portion and front pin portion.
As further setting of the present utility model, described front pin portion includes front needle seat, front needle seat includes the front installation arm of distribution in both sides, arm each one end is installed before two and is provided with the prelocalization pin hole being available for the installation of prelocalization pin, arm is installed before two be each connected by front connecting plate between the other end, described rear pin portion includes rear needle stand, rear needle stand includes the rear installation arm of distribution in both sides, arm each one end is installed after two and is provided with the rear positioning pinholes being available for the installation of rear positioning needle, arm is installed after two be each connected by rear connecting plate between the other end, arm is installed after described and is provided with rotary positioning apparatus.
In said structure, front needle seat and all rectangular mount structure of rear needle stand entirety, front needle seat is positioned at inside rear needle stand, front and back connecting plate is parallel to each other, front installation arm and rear installation (can act as adjustment fracture rotation deformity) between arm mutually at an angle, the rear positioning needle installed in the prelocalization pin of prelocalization pin hole installation and rear portion positioning pinholes is parallel to each other with front and back connecting plate respectively, namely when this fixed mount is inserted front and back positioning needle and Kirschner wire, Kirschner wire and phalanges vertical relation must be kept, thus ensureing that the stable equilibrium to fracture anterior posterior is stable, the tractive force balance that when ensureing tractive, phalanges is subject to is uniform.
As further setting of the present utility model, described rotary positioning apparatus includes the alar part extended inwardly by lower wall on rear installation arm, this alar part has the installation cavity adaptive with front installation arm, this alar part upper and lower end face is respectively equipped with location screw, and this location screw is each passed through alar part end face and abuts with front installation arm.
In said structure, alar part installs 1/3 place of the nearly connecting plate one end of arm rest after being arranged on, both sides are installed arm and are equipped with alar part, and this alar part respectively arranges a screwed hole up and down for being screwed into location screw.Slide in front pin portion in rear pin portion, the anglec of rotation between its front pin portion and rear pin portion is fixed by the location screw of alar part, adjusting screw rod is then for regulating front pin portion and rear pin portion distance along phalanges length direction, it is achieved it is stable that three-point mount reaches final fastening.
As further setting of the present utility model, one end that described front installation arm deviates from front connecting plate is provided with needle holder, and one end that described rear installation arm deviates from rear connecting plate also is provided with needle holder, and described needle holder is provided with the installing hole that at least 2 group pore sizes are different.
In said structure, one end that each self installation arm in front pin portion and rear pin portion deviates from operating side is respectively equipped with three place's Kirschner wire circular hole and above-mentioned installing holes, the aperture of this installing hole respectively 1.0mm, 1.2mm, 1.5mm；In clinic, the Kirschner wire diameter of application is 0.8mm, 1.0mm, 1.2mm, 1.5mm etc.；One piece of Kirschner wire can be inserted when operation is installed or insert pulling force when two pieces of Kirschner wires increase anti-traction.
As further setting of the present utility model, all U-shaped structure in described front pin portion and rear pin portion, this front pin portion is arranged in all curved structure of rear pin portion inner chamber, front connecting plate and rear connecting plate and arranges.
In said structure, all curved structure of front and back connecting plate, before and after this, connecting plate is connected, with front and back installation arm, the ring part structure formed in opening shape, and the opening of this ring part then arranges installing hole for installing Kirschner wire, forms closing structure after installing Kirschner wire.
Adopt such scheme, this utility model structure is primarily adapted for use in Phalangeal fracture, phalanges cripetura, phalanges prolongations etc. are corrected, by pin portion, front and back, knochenbruch front and rear part is fixed, front pin portion is by conventional rustless steel Kirschner wire (1.0mm, 1.2mm, 1.5mm) it is fixed on fracture front end, fracture rear end is fixed in rear pin portion in the same way, simultaneously, by adjusting screw rod, phalanges front portion is carried out axially stretching and drawing effect, realize longitudinal both arms fixed traction, this pull strength is kept to continue balance and stability, phalanges is more easy to be restored, secondly, rear pin portion two-arm is provided with alar part, by the screw of location up and down of alar part, two-arm is reached low-angle (within 20 ° of scopes) and rotate positioning action, realize fracture site is carried out the rotational correction within small angle range, realize three-dimensional reset of fracture site is corrected, and this simple in construction, lightweight, easy to operate, patient burden is little.
Below in conjunction with accompanying drawing, this utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is this utility model specific embodiment structural representation；
Accompanying drawing 2 is pin portion structural representation after this utility model specific embodiment；
Accompanying drawing 3 is pin portion structural representation before this utility model specific embodiment；
Front pin portion 1, front installation arm 11, front connecting plate 12, rear pin portion 2, rear installation arm 21, rear connecting plate 22, needle holder 3, installing hole 31, alar part 4, location screw 5, adjusting screw rod 6, operating side 61, securing member 7.
Detailed description of the invention
Specific embodiment of the utility model is finger miniature external fixer as Figure 1-3, rear pin portion 2 including the front pin portion 1 anterior for fixing fracture, fixing fracture rear portion, front pin portion 1 and rear pin portion 2 can relative movement and this moving direction adaptive with the length direction of fracture phalanges, the relative movement in front pin portion 1 and rear pin portion 2 is driven by traction apparatus and positions.Traction apparatus includes adjusting screw rod 6, this adjusting screw rod 6 one end sequentially passes through rear pin portion 2 and front pin portion 1, adjusting screw rod 6 and front pin portion 1 are in the axial location fit of adjusting screw rod 6, and be connected in adjusting screw rod 6 radial rotating, adjusting screw rod 6 is threadeded with rear pin portion 2, adjusting screw rod 6 other end constitutes operating side 61, and this operating side 61 is interior hexagonal (hexagon)nut structure.Front pin portion 1 in the present embodiment is for fixing one end near finger tip, and then pin portion 2 is for fixing one end that phalanges is connected with wrist；Certainly, current pin portion 1, for fixing one end that phalanges is connected with wrist, can also realize when then pin portion 2 is used for fixing finger tip one end.Above-mentioned adjusting screw rod 6 can axially position radial rotating and be connected with front pin portion 1, adjusting screw rod 6 is then threadeded with rear pin portion 2, after being driven by adjusting screw rod 6, pin portion 2 elongates or shortens the distance between two knochenbruch, play treatment restitution, adjusting screw rod 6 can also be changed into be rotationally connected with rear pin portion 2 axially-fixed and radial, threaded with front pin portion 1, realize the movable of front pin portion 1.
The both sides of fracture site are fixed by front pin portion 1 and rear pin portion 2 respectively, simultaneously, before being driven by traction apparatus, pin portion 1 or rear pin portion 2 are axially the pull strength that length direction has controlled persistence along phalanges, and fracture deformity effect is corrected in the rotation realizing small angle range in the radial direction and width of phalanges especially fracture site, the pull strength performance of this structure balances more, and, easy to operate, simple in construction is light and handy, and patient will not cause big impact.
Above-mentioned adjusting screw rod 6 is provided with securing member 7 near position, operating side 61, and this securing member 7 outer peripheral face is provided with convex tendon spaced apart.Securing member 7 is anchored on adjusting screw rod 6 near operating side 61 place, when adjusting screw rod 6 adjust appropriate after for fastening screw so that it is will not loosen in long-term application；This securing member 7 is screw rod fastener, the similar plum blossom shape of its profile.
Above-mentioned traction apparatus includes adjusting screw rod 6, this adjusting screw rod 6 one end sequentially passes through rear pin portion 2 and front pin portion 1, adjusting screw rod 6 and front pin portion 1 are in the axial location fit of adjusting screw rod 6, and be connected in adjusting screw rod 6 radial rotating, adjusting screw rod 6 is threadeded with rear pin portion 2, and adjusting screw rod 6 other end constitutes operating side 61.This traction apparatus has draw, it is internal that front pin portion 1 is placed in rear pin portion 2, front pin portion 1 is by prelocalization pin and location, fracture of finger front end, rear pin portion 2 is by rear positioning needle and location, fracture of finger rear end, relative displacement is there is between pin portion 2 and front pin portion 1 in this utility model after being driven by the operating side 61 of rotation adjusting screw rod 6, elongate or shorten the distance between fracture site, playing the treatment effect such as phalanges shortened deformity or phalanges prolongation.
Above-mentioned front pin portion 1 includes front needle seat, front needle seat includes the front installation arm 11 of distribution in both sides, the respective one end of arm 11 is installed before two and is provided with the prelocalization pin hole being available for the installation of prelocalization pin, install before two between the respective other end of arm 11 and be connected by front connecting plate 12, rear pin portion 2 includes rear needle stand, rear needle stand includes the rear installation arm 21 of distribution in both sides, the respective one end of arm 21 is installed after two and is provided with the rear positioning pinholes being available for the installation of rear positioning needle, installing after two between the respective other end of arm 21 and be connected by rear connecting plate 22, rear arm 21 of installing is provided with rotary positioning apparatus.Front needle seat and all rectangular mount structure of rear needle stand entirety, front needle seat is positioned at inside rear needle stand, front and back connecting plate 22 is parallel to each other, front installation arm 11 and rear installation (can act as adjustment fracture rotation deformity) between arm 21 mutually at an angle, the rear positioning needle installed in the prelocalization pin of prelocalization pin hole installation and rear portion positioning pinholes is parallel to each other with front and back connecting plate 22 respectively, namely when this fixed mount is inserted front and back positioning needle and Kirschner wire, Kirschner wire and phalanges vertical relation must be kept, thus ensureing that the stable equilibrium to fracture anterior posterior is stable, the tractive force balance that when ensureing tractive, phalanges is subject to is uniform.
Above-mentioned rotary positioning apparatus includes the alar part 4 extended inwardly by lower wall on rear installation arm 21, this alar part 4 has and the installation cavity of front installation arm 11 adaptation, this alar part 4 upper and lower end face is respectively equipped with location screw 5, and this location screw 5 is each passed through alar part 4 end face and abuts with front installation arm 11.Alar part 4 installs arm 21 near 1/3 place of connecting plate one end after being arranged on, and two rear flank are installed arm 21 and are equipped with alar part 4, and this alar part about 4 respectively arranges a screwed hole for being screwed into location screw 5.Slide in front pin portion 1 in rear pin portion 2, the anglec of rotation between its front pin portion 1 and rear pin portion 2 is fixed by the location screw 5 of alar part 4, adjusting screw rod 6 is then for regulating front pin portion 1 and the rear pin portion 2 distance along phalanges length direction, it is achieved it is stable that three-point mount reaches final fastening.
One end that above-mentioned front installation arm 11 deviates from front connecting plate 12 is provided with needle holder 3, rear installation arm 21 deviates from one end of rear connecting plate 22 and also is provided with needle holder 3, needle holder 3 is provided with 3 groups of different installing holes of pore size 31, the installing hole 31 of the needle holder 3 on front installation arm 11 constitutes above-mentioned prelocalization pin hole, and the installing hole 31 of the rear needle holder 3 installed on arm 21 then constitutes above-mentioned rear positioning pinholes.One end that each self installation arm in front pin portion 1 and rear pin portion 2 deviates from operating side 61 is respectively equipped with three place's Kirschner wire circular holes and above-mentioned installing hole 31, the aperture of this installing hole 31 respectively 1.0mm, 1.2mm, 1.5mm；In clinic, the Kirschner wire diameter of application is 0.8mm, 1.0mm, 1.2mm, 1.5mm etc.；One piece of Kirschner wire can be inserted when operation is installed or insert pulling force when two pieces of Kirschner wires increase anti-traction.
The all U-shaped structure in above-mentioned front pin portion 1 and rear pin portion 2, this front pin portion 1 is arranged in all curved structure of rear pin portion 2 inner chamber, front connecting plate 12 and rear connecting plate 22 and arranges.The front and back all curved structure of connecting plate 22, before and after this, connecting plate 22 is connected, with front and back installation arm 21, the ring part structure formed in opening shape, and the opening of this ring part then arranges installing hole 31 for installing Kirschner wire, forms closing structure after installing Kirschner wire.
Adopt such scheme, this utility model structure is primarily adapted for use in Phalangeal fracture, phalanges cripetura, phalanges prolongations etc. are corrected, by pin portion, front and back 2, knochenbruch front and rear part is fixed, front pin portion 1 is by conventional rustless steel Kirschner wire (1.0mm, 1.2mm, 1.5mm) it is fixed on fracture front end, fracture rear end is fixed in rear pin portion 2 in the same way, simultaneously, by adjusting screw rod 6, phalanges front portion is carried out axially stretching and drawing effect, realize longitudinal both arms fixed traction, this pull strength is kept to continue balance and stability, phalanges is more easy to be restored, secondly, front pin portion 1 two-arm is provided with alar part 4, by the screw of location up and down 5 of alar part 4, two-arm is reached low-angle (within 20 ° of scopes) and rotate positioning action, realize fracture site is carried out the rotational correction within small angle range, realize three-dimensional reset of fracture site is corrected, and this simple in construction, lightweight, easy to operate, patient burden is little.
This utility model is not limited to above-mentioned detailed description of the invention; persons skilled in the art are according to this utility model disclosure; other multiple detailed description of the invention can be adopted to implement of the present utility model; or every employing design structure of the present utility model and thinking; do simple change or change, both fall within protection domain of the present utility model.
Claims (7)
1. a finger miniature external fixer, it is characterized in that: include the rear pin portion at the front pin portion for fixing fracture front portion, fixing fracture rear portion, described front pin portion and rear pin portion can relative movement and this moving direction adaptive with the length direction of fracture phalanges, the relative movement in front pin portion and rear pin portion is driven by traction apparatus and positions.
2. finger miniature external fixer according to claim 1, it is characterized in that: described traction apparatus includes adjusting screw rod, this adjusting screw rod one end sequentially passes through rear pin portion and front pin portion, adjusting screw rod and front pin portion are in the axial location fit of adjusting screw rod, and be connected in adjusting screw rod radial rotating, adjusting screw rod is threadeded with rear pin portion, and the adjusting screw rod other end constitutes operating side.
3. finger miniature external fixer according to claim 2, it is characterised in that: described adjusting screw rod is provided with securing member near position, operating side, and this securing member outer peripheral face is provided with convex tendon spaced apart.
4. the finger miniature external fixer according to claim 1 or 2 or 3, it is characterized in that: described front pin portion includes front needle seat, front needle seat includes the front installation arm of distribution in both sides, arm each one end is installed before two and is provided with the prelocalization pin hole being available for the installation of prelocalization pin, arm is installed before two be each connected by front connecting plate between the other end, described rear pin portion includes rear needle stand, rear needle stand includes the rear installation arm of distribution in both sides, arm each one end is installed after two and is provided with the rear positioning pinholes being available for the installation of rear positioning needle, arm is installed after two be each connected by rear connecting plate between the other end, arm is installed after described and is provided with rotary positioning apparatus.
5. finger miniature external fixer according to claim 4, it is characterized in that: described rotary positioning apparatus includes the alar part extended inwardly by lower wall on rear installation arm, this alar part has the installation cavity adaptive with front installation arm, this alar part upper and lower end face is respectively equipped with location screw, and this location screw is each passed through alar part end face and abuts with front installation arm.
6. finger miniature external fixer according to claim 4, it is characterized in that: one end that described front installation arm deviates from front connecting plate is provided with needle holder, one end that described rear installation arm deviates from rear connecting plate also is provided with needle holder, and described needle holder is provided with the installing hole that at least 2 group pore sizes are different.
7. finger miniature external fixer according to claim 4, it is characterised in that: all U-shaped structure in described front pin portion and rear pin portion, this front pin portion is arranged in all curved structure of rear pin portion inner chamber, front connecting plate and rear connecting plate and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065485.7U CN205339094U (en) | 2016-01-22 | 2016-01-22 | Point miniature external fixation frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065485.7U CN205339094U (en) | 2016-01-22 | 2016-01-22 | Point miniature external fixation frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205339094U true CN205339094U (en) | 2016-06-29 |
Family
ID=56177292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620065485.7U Expired - Fee Related CN205339094U (en) | 2016-01-22 | 2016-01-22 | Point miniature external fixation frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205339094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105708530A (en) * | 2016-01-22 | 2016-06-29 | 叶智江 | Miniature finger external fixation frame |
-
2016
- 2016-01-22 CN CN201620065485.7U patent/CN205339094U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105708530A (en) * | 2016-01-22 | 2016-06-29 | 叶智江 | Miniature finger external fixation frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20190122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |