CN109044510B - Miniature external fixer for phalanx - Google Patents
Miniature external fixer for phalanx Download PDFInfo
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- CN109044510B CN109044510B CN201810722656.2A CN201810722656A CN109044510B CN 109044510 B CN109044510 B CN 109044510B CN 201810722656 A CN201810722656 A CN 201810722656A CN 109044510 B CN109044510 B CN 109044510B
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- fracture
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- control arm
- needle portion
- correction
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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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
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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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
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- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Surgical Instruments (AREA)
Abstract
The invention relates to a phalange miniature external fixator, which comprises a front needle part for fixing a fracture far end, a rear needle part for fixing a fracture near end, a fracture rotation correction device and a rotation correction guide seat, wherein the front needle part and the rear needle part move relatively along the fracture phalange long axis direction in a consistent manner and are driven and positioned by a traction device, at least one group of correction control components are arranged on the finger correction device, each correction control component comprises a rotary control arm and a bone nail arranged on the rotary control arm, an arc-shaped guide groove extending along the circumferential direction of the phalanx is arranged on the rotary correction guide seat, the rotating control arm extends along the length direction of the phalanx, the rotating control arm can be arranged on the rotating correction guide seat in a mode of rotating around the axis of the rotating control arm and sliding along the arc-shaped guide groove, and the rotating control arm is locked and unlocked by the position locking structure and assembled on the rotating correction guide seat. The correction reliability of the rotary deformity of the fracture is strong, the operability is high, the reduction of the fracture is facilitated, and the purpose of early functional exercise is achieved.
Description
Technical Field
The invention relates to the technical field of surgical medical instruments, in particular to a phalanx miniature external fixator for fracture reduction treatment or deformity phalanx correction.
Background
The external fixator has simple structure, convenient assembly and disassembly operation, and simple and convenient secondary disassembly after fracture healing. The biggest advantage is that the early function exercise after the fracture end is fixed can be realized, the joint stiffness is prevented, and the disability rate is reduced. The traditional phalanx miniature external fixator is mostly imported, and has the defects of high price, complex operation and the like.
In order to solve the technical problems, the inventor designs a phalange miniature external fixator, which is disclosed in Chinese patent invention (with the patent number of CN201610045668.7, the name of the invention is 'finger miniature external fixator'), the technology realizes the functions of axially stretching, drawing and compressing the fracture part of a finger upwards, simultaneously, wing parts are arranged on two arms of the back needle part of the finger miniature external fixator, and the two arms achieve the function of rotationally positioning within a small angle (within a range of 20 degrees) through upper and lower positioning screws of the wing parts, so as to realize the rotational correction within the small angle range of the fracture part; however, in the clinical use process, the effect of realizing the rotation correction of the fracture part by the upper and the lower screws on the two wings is not ideal.
Disclosure of Invention
The invention aims at: in order to overcome the defects in the prior art, the invention provides the phalanx miniature external fixator, which can better realize the lateral rotary reduction and fixation of the phalanx fracture, improve the reliability and operability of the rotary correction of the fracture and improve the healing effect of the fracture.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a miniature external fixator of phalanx, is including the anterior needle portion that is used for fixing fracture anterior, the back needle portion at fixed fracture rear portion, but anterior needle portion and back needle portion relative movement and this moving direction are unanimous with the major axis direction of fracture phalanx, and the relative movement of anterior needle portion and back needle portion passes through draw gear drive and fixes a position its characterized in that: still including the rotatory orthotic devices of fracture, the rotatory orthotic devices of fracture is equipped with at least a set of correction control assembly including being fixed in the rotatory guide holder of correcting on the front needle portion on the rotatory guide holder of correcting, and correction control assembly includes the rotation control arm and installs the bone nail on the rotation control arm, is equipped with the arc guide way along phalanx circumference direction on the rotatory guide holder of correcting, the rotation control arm extends along phalanx length direction, and the rotation control arm can rotate around self axis to set up on the rotatory guide holder of correcting in order to follow the gliding mode of arc guide way, the rotation control arm is through position locking structure locking, unblock assembly on the rotatory guide holder of correcting.
By adopting the technical scheme, the front needle part or the rear needle part is driven by the traction device to have controllable continuous traction force along the axial direction of the phalanx, namely the length direction, especially when the fracture angulation displacement condition is met, the fracture rotation correction device is arranged on the front needle part, the rotation control arm is fixedly connected with the fracture far end through the bone nail, the external remote control adjustment of the fracture far end rotation deformity is achieved through the rotation adjustment of the control arm per se and the adjustment of the rotation adjustment along the arc-shaped guide groove, and the true resetting and fixing of the fracture coronal plane and the sagittal plane are realized.
Preferably, the rotary control arm is provided with a bone nail mounting groove along the length direction thereof, and the position of the bone nail fixed in the bone nail mounting groove is adjustable. Under the structural design, the bone nail can be conveniently fixed at any axial position of the phalangeal fracture.
Preferably, the bone nail comprises a rod-shaped main body, an external thread is arranged on the rod-shaped main body, two clamping nuts are screwed on the upper thread of the rod-shaped main body, and the bone nail is clamped and fixed on the rotary control arm through the two clamping nuts, so that the clamping and fixing position of the bone nail along the length direction of the bone nail is adjustable. Under this structural design, make things convenient for the fixed mounting of bone nail, the bone nail after the fixed fracture piece of simultaneous control lifts and pushes down, realizes the local regulation that resets to the fracture piece.
Preferably, the position locking structure includes centre gripping lock nut and centre gripping lock end, centre gripping lock end is located on the rotation control arm, and centre gripping lock end has axial clamping part and guiding axle portion, arc guide way is upwards link up the setting along rotation control arm length direction, guiding axle portion cross-under in the arc guide way and with arc guide way movable guide cooperation, guiding axle portion is equipped with the lock screw who connects soon with centre gripping lock nut, centre gripping lock nut connects soon on guiding axle portion to thereby constitute the centre gripping with the cooperation of axial clamping part and be fixed in on the rotation correction guide holder. Under this structural design, have simple structure, convenient operation's advantage.
Preferably, preceding needle portion includes preceding needle file, and preceding needle file is including the preceding installation arm that is both sides and distributes, and two preceding installation arms are equipped with the preceding location pinhole that can supply the installation of preceding location needle in each other one end, and two preceding installation arms link up through preceding connecting plate between the other end separately, back needle portion includes back needle file, and back needle file is including the back installation arm that is both sides and distributes, and two back installation arms are equipped with the back location pinhole that can supply the installation of back location needle in each other one end separately, link up through back connecting plate between two back installation arms respectively other ends, the last lower wall of back installation arm extends inwards has the alar part, and this alar part has the installation cavity with preceding installation arm adaptation, and the terminal surface is equipped with set screw respectively about this alar part, and this set screw passes alar part terminal surface and preceding installation. Under this structural design, preceding needle portion fixes a position through alar part, set screw with back needle portion, and preceding needle portion has rotatable and axial displacement's activity space on back needle portion, makes things convenient for rotatory orthotic devices of fracture to rotate the remote control to the fracture piece, and convenient and better assurance fracture piece is rotatory to be reset, in addition, fixes the rotation angle between its preceding needle portion and the back needle portion through the set screw of alar part.
Preferably, preceding needle portion and back needle portion all are U type structure, and this preceding needle portion is arranged in back needle portion inner chamber, the fixed end of two preceding pilot pins that correspond to be equipped with preceding pilot pin hole on the preceding needle portion is the inside side offset setting, has the interval that supplies preceding pilot pin tip to stretch into between the fixed end of preceding pilot pin and the back installation arm inside wall of back needle portion. Under this structural design, the end of preceding pilot pin can stretch into in the interval, this kind of setting that keeps the determining deviation, the back installation arm that makes the fixed end of preceding pilot pin and back needle portion does not interfere with each other, remains the length of certain preceding needle portion pilot pin, prevents the slippage, avoids preceding fixed end of preceding pilot pin to excessively paste and lean on the back installation arm inside wall department in back needle portion, makes preceding pilot pin deviate from the fixed end of preceding pilot pin easily under the exogenic action.
Preferably, the traction device comprises an adjusting screw rod, one end of the adjusting screw rod sequentially penetrates through the rear needle part and the front needle part, the adjusting screw rod and the front needle part are matched in an axial positioning mode of the adjusting screw rod and are connected in a radial rotating matched mode of the adjusting screw rod, the adjusting screw rod is in threaded connection with the rear needle part, and the other end of the adjusting screw rod forms an operation end. Under the structural design, the traction device realizes traction on the fracture position, the front needle part is arranged in the rear needle part, the front needle part is positioned with the front end of the finger fracture through the front positioning needle, and the rear needle part is positioned with the rear end of the finger fracture through the rear positioning needle.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a phalangeal micro external fixator according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rear needle portion structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of the front needle portion structure according to the embodiment of the present invention;
FIG. 4 is an exploded view of a fracture rotation correction device in accordance with an embodiment of the present invention;
the bone screw comprises a front needle part 1, a front mounting arm 11, a front positioning needle fixing end 111, a front connecting plate 12, a rear needle part 2, a rear mounting arm 21, a wing part 211, a positioning screw 212, a rear connecting plate 22, an adjusting screw rod 3, a rotary correction guide seat 4, an arc-shaped guide groove 41, a rotary control arm 5, a bone screw mounting groove 51, a bone screw 6, external threads 61, a clamping nut 7, a clamping locking nut 8, a clamping locking end head 9, an axial clamping part 91, a guide shaft part 92, a locking thread 921 and an interval I.
Detailed Description
Referring to the attached drawings 1-4, the invention discloses a phalanx miniature external fixator, which comprises a front needle part 1 used for fixing the front part of a fracture and a rear needle part 2 used for fixing the rear part of the fracture, wherein the front needle part 1 and the rear needle part 2 can move relatively, the moving direction is matched with the length direction of a fractured phalanx, the relative movement of the front needle part 1 and the rear needle part 2 is driven and positioned by a traction device, and the front needle part 1 and the rear needle part 2 respectively fix two sides of the fractured part. The traction device comprises an adjusting screw rod 3, one end of the adjusting screw rod 3 sequentially penetrates through a back needle part 2 and a front needle part 1, the adjusting screw rod 3 and the front needle part 1 are matched in a positioning mode in the axial direction of the adjusting screw rod 3 and are connected in a radial rotating matching mode of the adjusting screw rod 3, the adjusting screw rod 3 is in threaded connection with the back needle part 2, and the other end of the adjusting screw rod 3 forms an operation end. The front needle part is arranged in the rear needle part, the front needle part is positioned with the front end of the finger fracture through the front positioning needle, the rear needle part is positioned with the rear end of the finger fracture through the rear positioning needle, and the operation end of the adjusting screw rod is rotated to drive the rear needle part and the front needle part to generate relative displacement, so that the distance between the fracture parts is lengthened or shortened, and the effects of treating shortened phalange deformity or lengthened phalange and the like are achieved.
The front needle part 1 comprises a front needle base, the front needle base comprises front mounting arms 11 which are distributed on two sides, one end of each of the two front mounting arms 11 is provided with a front positioning needle base (namely a front positioning needle fixing end 111) for mounting a front positioning needle, a front positioning needle hole is arranged on the front positioning needle base, the other end of each of the two front mounting arms 11 is connected through a front connecting plate 12, the rear needle part 2 comprises a rear needle base, the rear needle base comprises rear mounting arms 21 which are distributed on two sides, one end of each of the two rear mounting arms 21 is provided with a rear positioning needle hole for mounting a rear positioning needle, the other end of each of the two rear mounting arms 21 is connected through a rear connecting plate 22, the front needle base and the rear needle base are integrally in a rectangular frame structure, the front needle base is positioned in the rear needle base, wing parts 211 extend inwards from the upper wall and the lower wall of the rear mounting arms 21, and the wing parts 211 are arranged, the rear mounting arms 21 on both sides are provided with wing portions 211, the wing portions 211 are respectively provided with a threaded hole up and down for screwing a positioning screw 212, the wing portions 211 are provided with mounting cavities matched with the front mounting arms 11, the positioning screws 212 respectively penetrate through the end faces of the wing portions 211 to be abutted against the front mounting arms 11, and the front mounting arms 11 and the mounting cavities are matched in a cylindrical shape. The anterior needle part and the posterior needle part are positioned through the wing part and the positioning screw, the anterior needle part has a movable space capable of rotating and moving axially on the posterior needle part, and the anterior needle part and the posterior needle part have a rotary correction function for realizing a certain angle of fracture to a certain extent, but in the clinical process, the inventor finds that the correction effect for the rotation of the lateral fracture cannot reach the ideal condition, and therefore, the inventor further improves and designs:
the device also comprises a fracture rotation correction device, the fracture rotation correction device comprises a rotation correction guide seat 4 fixed on the front needle part 1, in the embodiment, the rotation correction guide seat 4 is fixed on a front connecting plate 12 of the front needle part 1 and is detachably mounted by adopting a fastening piece such as a screw and the like, of course, other fixing modes which are feasible in the prior art can also be adopted, at least one group of correction control components are arranged on the rotation correction guide seat 4, according to the condition of the fracture part, 2 or more groups of correction control component designs can also be adopted on the rotation correction guide seat 4 to ensure the correction and fixing effect of the fracture part, the correction control components comprise a rotation control arm 5 and a bone nail 6 arranged on the rotation control arm 5, an arc-shaped guide groove 41 extending along the circumferential direction of the phalanx is arranged on the rotation correction guide seat 4, the rotation control arm 5 extends along the length direction of the phalan, the rotary control arm 5 can rotate around the axis of the rotary control arm, and is arranged on the rotary correction guide seat 4 in a sliding mode along the arc-shaped guide groove 41, the rotary control arm 5 is locked by the position locking structure and is assembled on the rotary correction guide seat 4 in an unlocking mode, therefore, the rotary control arm can rotate by itself to achieve the rotary correction of the fracture part fixedly connected with the fixing nail, meanwhile, the rotary control arm can move along the arc-shaped guide groove to achieve the rotary correction of the fracture part fixedly connected with the fixing nail, the multi-dimensional resetting correction is realized, the position locking structure locks the rotary control arm by the rotary control arm to rotate and correct the guide seat after the rotary correction of the fracture part is completed, the correction position of the fracture part is kept, and the good rotary correction of the fracture deformity is realized. In addition, the front needle part 1 and the rear needle part 2 are matched by the wing part 211 and the positioning screw 212 to achieve positioning and fixing, so that the fracture rotary correction device can fix the corrected fracture part conveniently, and the effect of fracture correction is improved.
As a further arrangement of the invention, the bone nail 6 comprises a rod-shaped main body, the rod-shaped main body is provided with an external thread 61, the rod-shaped main body is screwed with two clamping nuts 7, and the bone nail 6 is clamped and fixed on the rotary control arm 5 through the two clamping nuts 7, so that the clamping and fixing position of the bone nail along the length direction of the bone nail can be adjusted. Threaded bone nail has the advantage of firmly reliable with the fracture piece is fixed, cooperates two clamping nut simultaneously, makes things convenient for the fixed mounting of bone nail on the rotation control arm, and the clamping position of simultaneous control bone nail realizes making things convenient for the fracture piece regulation of side position, and the regulation that resets of fracture piece makes things convenient for.
The rotary control arm 5 is provided with a bone nail installation groove 51 along the length direction, and the position of the bone nail 6 fixed in the bone nail installation groove 51 can be adjusted. The position of the bone nail can be conveniently determined, and the bone nail can be better fixed at the optimal position of the fracture block.
In this embodiment, the position locking structure comprises a clamping lock nut 8 and a clamping lock head 9, the clamping and locking end head 9 is arranged on the rotary control arm 5, the clamping and locking end head 9 can be integrally formed with or assembled and fixed on the rotary control arm 5, the clamping and locking end head 9 is provided with an axial clamping part 91 and a guide shaft part 92, the arc-shaped guide groove 41 is axially and penetratingly arranged along the length direction of the rotation control arm 5, the guide shaft portion 92 is inserted into the arc-shaped guide groove 41 and movably guided and matched with the arc-shaped guide groove 41 (guiding for self-rotation of the rotation control arm and sliding along the arc-shaped guide groove), the guiding axle part 92 is provided with a locking thread 921 screwed with the clamping lock nut 8, the clamping lock nut 8 is screwed on the guiding axle part 92, and cooperates with the axial clamping portion 92 to constitute clamping fixation to the rotation correction guide 4. Has the advantages of simple structure and convenient operation.
Preceding needle portion 1 and back needle portion 2 all are U type structure, and this preceding needle portion 1 is arranged in 2 inner chambers of back needle portion, the fixed end 111 of two preceding pilot pins that correspond to be equipped with preceding pilot pin hole on preceding needle portion 1 is the inside side offset setting, has the interval I that supplies preceding pilot pin tip to stretch into between the fixed end 111 of preceding pilot pin and the back installation arm 21 inside wall of back needle portion 2. Like this, the end of preceding pilot pin can stretch into in the interval, and it is reliable to guarantee that preceding pilot pin fixes on preceding pilot pin fixed end, avoids preceding fixed end of pilot pin too to paste and lean on in the back installation arm inside wall department of back needle portion, makes preceding pilot pin deviate from preceding fixed end of pilot pin easily under the exogenic action.
Claims (7)
1. The utility model provides a miniature external fixator of phalanx, is including the anterior needle portion that is used for fixing fracture anterior, the back needle portion at fixed fracture rear portion, but anterior needle portion and back needle portion relative movement and this moving direction are unanimous with the major axis direction of fracture phalanx, and the relative movement of anterior needle portion and back needle portion passes through draw gear drive and fixes a position its characterized in that: still including the rotatory orthotic devices of fracture, the rotatory orthotic devices of fracture is equipped with at least a set of correction control assembly including being fixed in the rotatory guide holder of correcting on the front needle portion on the rotatory guide holder of correcting, and correction control assembly includes the rotation control arm and installs the bone nail on the rotation control arm, is equipped with the arc guide way along phalanx circumference direction on the rotatory guide holder of correcting, the rotation control arm extends along phalanx length direction, and the rotation control arm can rotate around self axis to set up on the rotatory guide holder of correcting in order to follow the gliding mode of arc guide way, the rotation control arm is through position locking structure locking, unblock assembly on the rotatory guide holder of correcting.
2. The phalangeal micro external fixator of claim 1, wherein: the rotary control arm is provided with a bone nail mounting groove along the length direction, and the position of the bone nail fixed in the bone nail mounting groove can be adjusted.
3. The phalangeal micro external fixator according to claim 1 or 2, wherein: the bone nail comprises a rod-shaped main body, an external thread is arranged on the rod-shaped main body, two clamping nuts are screwed on the upper thread of the rod-shaped main body, and the bone nail is clamped and fixed on the rotary control arm through the two clamping nuts, so that the clamping and fixing position of the bone nail along the length direction of the bone nail is adjustable.
4. The phalangeal micro external fixator of claim 1, wherein: the position locking structure comprises a clamping locking nut and a clamping locking end, wherein the clamping locking end is arranged on the rotary control arm, the clamping locking end is provided with an axial clamping part and a guide shaft part, the arc guide groove is axially communicated along the length direction of the rotary control arm, the guide shaft part is inserted into the arc guide groove and is matched with the arc guide groove in a movable guide way, the guide shaft part is provided with a locking thread which is connected with the clamping locking nut in a rotating way, the clamping locking nut is connected onto the guide shaft part in a rotating way, and the clamping locking nut is matched with the axial clamping part to form clamping to be fixed on the rotary correction guide seat.
5. The phalangeal micro external fixator of claim 1, wherein: preceding needle portion includes preceding needle file, and preceding needle file is including the preceding installation arm that is both sides and distributes, and two preceding installation arms are equipped with the preceding location pinhole that can supply the installation of preceding location needle in one end separately, link up through preceding connecting plate between two preceding installation arms other ends separately, back needle portion includes back needle file, and back needle file is including the back installation arm that is both sides and distributes, and two back installation arms are equipped with the back location pinhole that can supply the installation of back location needle in one end separately, link up through back connecting plate between two back installation arms other ends separately, the last lower wall of back installation arm extends inwards has the alar part, and this alar part has the installation cavity with preceding installation arm adaptation, and the terminal surface is equipped with set screw respectively about this alar part, and this set screw passes alar part terminal surface and preceding installation arm butt respectively.
6. The phalangeal micro external fixator of claim 5, wherein: preceding needle portion and back needle portion all are U type structure, and this preceding needle portion is arranged in back needle portion inner chamber, the fixed end of two preceding pilot pins that correspond to be equipped with preceding pilot pin hole in preceding needle portion are the inside side skew setting, have the interval that supplies preceding pilot pin tip to stretch into between the fixed end of preceding pilot pin and the back installation arm inside wall of back needle portion.
7. The phalangeal micro external fixator of claim 1, wherein: the traction device comprises an adjusting screw rod, one end of the adjusting screw rod sequentially penetrates through the rear needle part and the front needle part, the adjusting screw rod and the front needle part are matched in an axial positioning mode of the adjusting screw rod and are connected with the adjusting screw rod in a radial rotating matched mode, the adjusting screw rod is in threaded connection with the rear needle part, and the other end of the adjusting screw rod forms an operation end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810722656.2A CN109044510B (en) | 2018-06-26 | 2018-06-26 | Miniature external fixer for phalanx |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810722656.2A CN109044510B (en) | 2018-06-26 | 2018-06-26 | Miniature external fixer for phalanx |
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| CN109044510A CN109044510A (en) | 2018-12-21 |
| CN109044510B true CN109044510B (en) | 2020-11-20 |
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| CN201810722656.2A Active CN109044510B (en) | 2018-06-26 | 2018-06-26 | Miniature external fixer for phalanx |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010077309A2 (en) * | 2008-12-17 | 2010-07-08 | Nutek Orthopaedics, Inc. | External fixation apparatus with adjustable pin clamping means and convergent bone pins |
| CN102783998A (en) * | 2012-05-15 | 2012-11-21 | 王华柱 | Hinge type dragging external fixing device |
| CN105708530A (en) * | 2016-01-22 | 2016-06-29 | 叶智江 | Miniature finger external fixation frame |
| CN207412283U (en) * | 2017-03-24 | 2018-05-29 | 重庆医科大学附属永川医院 | Fracture splint |
| CN207429146U (en) * | 2017-03-30 | 2018-06-01 | 苏州宇翔医疗器械有限公司 | A kind of orthopedic fingers and palms bone stent of correction |
-
2018
- 2018-06-26 CN CN201810722656.2A patent/CN109044510B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010077309A2 (en) * | 2008-12-17 | 2010-07-08 | Nutek Orthopaedics, Inc. | External fixation apparatus with adjustable pin clamping means and convergent bone pins |
| CN102783998A (en) * | 2012-05-15 | 2012-11-21 | 王华柱 | Hinge type dragging external fixing device |
| CN105708530A (en) * | 2016-01-22 | 2016-06-29 | 叶智江 | Miniature finger external fixation frame |
| CN207412283U (en) * | 2017-03-24 | 2018-05-29 | 重庆医科大学附属永川医院 | Fracture splint |
| CN207429146U (en) * | 2017-03-30 | 2018-06-01 | 苏州宇翔医疗器械有限公司 | A kind of orthopedic fingers and palms bone stent of correction |
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| CN109044510A (en) | 2018-12-21 |
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