CN109662767B - Near joint deformity correction external fixation support - Google Patents
Near joint deformity correction external fixation support Download PDFInfo
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- CN109662767B CN109662767B CN201811600706.6A CN201811600706A CN109662767B CN 109662767 B CN109662767 B CN 109662767B CN 201811600706 A CN201811600706 A CN 201811600706A CN 109662767 B CN109662767 B CN 109662767B
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- seat
- bone needle
- bone
- needle seat
- external fixation
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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
Abstract
The invention discloses an external fixation support for correcting near-joint deformity, which comprises a fixed seat, a swinging seat capable of being connected to the fixed seat in a swinging manner, a bone needle seat unit capable of being connected to the swinging seat in a sliding manner and a driving mechanism, wherein the driving mechanism is connected with the swinging seat and the bone needle seat unit to drive the bone needle seat unit to slide, the bone needle seat unit comprises a bone needle seat, a bone needle cover and a locking mechanism, a placing groove for placing bone needles is arranged on the bone needle seat, and the locking mechanism locks the bone needle seat and the bone needle cover to fixedly clamp the bone needles on the placing groove through the bone needle seat and the bone needle cover. It has the following advantages: the bone needle seat can be adjusted through swinging and can also be adjusted through sliding, so that the actual condition of a patient can be freely adjusted during operation, the operation is simple, and the phenomenon of correcting dislocation and deviation is effectively solved. The locking mechanism locks the bone needle seat and the bone needle cover so as to fix and clamp the bone needle on the placing groove through the bone needle seat and the bone needle cover, the locking is firm and reliable, and the use is convenient.
Description
Technical Field
The invention relates to a medical instrument, in particular to an external fixing bracket for correcting near-joint deformity.
Background
The prior external fixing device for treating the proximal joint angulation deformity, such as CN201968807U, is a tubular external fixing frame with an adjustable and micro-motion device, and consists of a back nut, a spring, a short shaft component, a locking screw, a long shaft component, a gasket, a mandrel and a movable head component, wherein the center through hole of the back nut is provided with reticulate patterns and round holes on the outer surface; the left end of the locking screw is provided with an external thread and an internal hexagonal hole, and the right end of the locking screw is provided with a step; the left end of the mandrel is provided with threads, the right end of the mandrel is provided with a threaded hole, and the right end of the mandrel is provided with two symmetrical longitudinal grooves. Firstly, determining the operation position, determining the implantation depth and the implantation direction of a spicule, drilling, penetrating the spicule, installing an external fixing frame, and adjusting the external fixing frame to meet the operation requirement. The malposition during the correction and the reduction is easy to cause in the using process, and the recovery of the patient is poor.
Disclosure of Invention
The invention provides an external fixation bracket for correcting near joint deformity, which overcomes the defects of the external fixation bracket in the background technology.
The technical scheme adopted by the invention for solving the technical problem is as follows:
nearly joint deformity corrects external fixation support, which comprises a fixed base, can swing the swing seat of connection at the fixing base, can sliding connection bone needle seat unit and actuating mechanism on the swing seat, this actuating mechanism connects this swing seat and bone needle seat unit and slides in order to drive bone needle seat unit, this bone needle seat unit includes the bone needle seat, bone needle lid and locking mechanism, this bone needle seat facial make-up has supplied the standing groove that the bone needle placed, this bone needle seat of locking mechanism locking and bone needle lid are in order to cover the bone needle that the fixation clamp is located the standing groove through bone needle seat and bone needle.
In one embodiment: the bone needle seat is connected on the swing seat in a sliding way, and the driving mechanism is connected with the swing seat and the bone needle seat.
In one embodiment: the drive mechanism includes a lead screw and nut mechanism.
In one embodiment: the end surface of the swing seat is concavely provided with a sliding chute, the bone needle seat is convexly provided with a sliding block in a protruding way, and the sliding block is connected in the sliding chute in a sliding way; the screw rod nut mechanism comprises a screw rod which can be rotatably arranged on the swing seat and an internal thread hole which is arranged in the sliding block, and the screw rod is in threaded connection with the internal thread hole.
In one embodiment: the end surface of the swing seat is also concavely provided with a guide groove, and a guide part is convexly arranged below the bone needle seat and is in adaptive connection with the guide groove.
In one embodiment: the bone needle seat is provided with a clamping block, and the top surface of the clamping block is concavely provided with the placing groove.
In one embodiment: the bone needle seat is concavely provided with an upper and lower through mounting groove, the bottom surface of the clamping block is convexly provided with an extending part, the peripheral wall of the extending part is concavely provided with an annular groove, the extending part extends into the mounting groove from top to bottom, the annular groove is provided with an O-shaped ring, the bottom surface of the clamping block is propped against the bone needle seat, and the O-shaped ring is propped against the bottom surface of the bone needle seat.
In one embodiment: this mounting groove is rectangular groove, should stretch into portion and rectangular groove width adaptation, and stretch into the portion and can adjust rectangular groove length direction relatively.
In one embodiment: the bone needle seat is convexly provided with two fixing parts and a connecting part positioned between the two fixing parts, and the top surface of the connecting part is concavely provided with the placing groove.
In one embodiment: the top surface of the connecting part is also provided with matching surfaces positioned at two sides of the placing groove; the locking mechanism comprises a screw which passes through the bone needle cover and is locked on the fixing part or the matching surface.
In one embodiment: the swing seat comprises a connecting seat and two side plates which are fixedly connected to the connecting seat at intervals in parallel; the fixed seat is concavely provided with two insertion grooves, and the two side plates are respectively inserted into the two insertion grooves; and a locking screw is additionally arranged and is used for connecting the fixed seat and the two side plates and connecting the two side plates and the fixed seat together.
Compared with the background technology, the technical scheme has the following advantages:
the bone needle seat can be adjusted through swinging and can also be adjusted through sliding, so that the actual condition of a patient can be freely adjusted during operation, the operation is simple, and the phenomenon of correcting dislocation and deviation is effectively solved. The locking mechanism locks the bone needle seat and the bone needle cover so as to fix and clamp the bone needle on the placing groove through the bone needle seat and the bone needle cover, the locking is firm and reliable, and the use is convenient.
The mounting groove that runs through from top to bottom is concavely equipped with to the spicule seat, and the protruding portion of stretching into that is equipped with in clamp splice bottom surface, and the portion periphery wall that stretches into is concavely equipped with the ring channel, and the portion of stretching into is from the top down stretched into the mounting groove, and the annular channel facial make-up has connect O shape circle, and the clamp splice bottom surface props to lean on the spicule seat, and O shape circle props to lean on in the spicule seat.
The mounting groove is rectangular groove, stretches into portion and rectangular groove width adaptation, and stretches into the portion and can adjust convenient adjusting position relative rectangular groove length direction.
The spicule seat is equipped with two fixed parts and a connecting portion that is located between two fixed parts to the epirelief, and the connecting portion top surface is concave to be equipped with foretell standing groove, and the connecting portion top surface still has the fitting surface that is located the standing groove both sides, and locking mechanism includes the screw, and the screw passes spicule lid and lock joint at this fixed part or this fitting surface, convenient assembling.
Drawings
The invention is further described with reference to the following figures and detailed description.
Fig. 1 is a perspective view of an external fixation brace in accordance with an embodiment.
Fig. 2 is a schematic view showing an example of use of the external fixation bracket according to the embodiment.
FIG. 3 is a cross-sectional schematic view of an embodiment of an external fixation bracket.
Fig. 4 is one of the exploded perspective views of an external fixation bracket of an embodiment.
Fig. 5 is a second exploded perspective view of the external fixation bracket of the embodiment.
Fig. 6 is one of the illustrations of the correction of the external fixation stent of the embodiment.
FIG. 7 is a second illustration of the correction of the external fixation frame according to the embodiment.
Fig. 8 is a third illustration of the correction of the external fixation frame according to the embodiment.
Detailed Description
Referring to fig. 1 to 5, the external fixation frame for correcting proximal joint deformity includes a fixing base 10, a swing base 20 capable of being swing-connected to the fixing base 10, a bone needle base unit 30 capable of being slide-connected to the swing base 20, and a driving mechanism 40, wherein the driving mechanism 40 connects the swing base 20 and the bone needle base unit 30 to drive the bone needle base unit 30 to slide, the bone needle base unit 30 includes a bone needle base 31, a bone needle cover 32, and a locking mechanism 33, the bone needle base 31 is provided with a placing groove 311 for placing bone needles, and the locking mechanism 33 locks the bone needle base 31 and the bone needle cover 32 to fix and clamp the bone needles on the placing groove 311 through the bone needle base 31 and the bone needle cover 32.
The swing seat 20 comprises a connecting seat 21 and two side plates 22 fixedly connected to the connecting seat 21 in parallel at intervals; the fixed seat 10 is concavely provided with two insertion grooves 11, and the two side plates 22 are respectively inserted into the two insertion grooves 11; a locking screw 12 is further provided, and the locking screw 12 connects the fixed seat 10 and the two side plates 22 to connect the two side plates 22 and the fixed seat 10 together, so that the swinging seat 20 can swing relative to the fixed seat 10. Whether the swinging seat 20 can swing relative to the fixed seat 10 can be controlled by the tightness of the locking screw 12 according to requirements, such as: the locking screw 12 is loosened to enable the insertion groove 11 to clamp the side plate 22, relative swinging of the insertion groove and the side plate is limited through static friction force, and the locking is released to enable a gap to be reserved between the insertion groove and the side plate or reduce acting force, so that the static friction force is reduced, and the insertion groove and the side plate can swing relatively.
The bone needle seat 311 is slidably connected to the swing seat 20, and the driving mechanism 40 connects the swing seat 20 and the bone needle seat 311. In the concrete structure: the top end face of the connecting seat 21 of the swinging seat 20 is concavely provided with a sliding groove 23, the bone needle seat 31 is convexly provided with a sliding block 312, and the sliding block 312 is connected in the sliding groove 23 in a sliding manner; this actuating mechanism 40 includes lead screw nut mechanism, and this lead screw nut mechanism is including can rotating lead screw 41 of locating the connecting seat 21 of swing seat 20 and locating the internal thread hole 42 in the slider 312, and this lead screw 41 spiro union is this internal thread hole 42, then can drive the slider through rotating the lead screw and slide, drives the relative swing seat of bone needle seat and slides, realizes the spicule and adjusts, and it is convenient to adjust, adjusts the precision height, can realize the auto-lock. Finally, the top end face of the connecting seat 21 of the swinging seat 20 is further concavely provided with a guide groove 24, and a guide part is further convexly arranged below the bone needle seat 31 and is in fit connection with the guide groove 24; one end of the screw rod 41 extends out of the connecting base 21, and a control groove for inserting a tool is concavely arranged on the end surface of the screw rod 41.
The two clamping blocks 34 are installed on the bone needle seat 31, and the top surfaces of the two clamping blocks 34 are concavely provided with the placing grooves 311; the bone needle holder 31 is concavely provided with a mounting groove 313 which penetrates through the bone needle holder 31 up and down, the bottom surface of the clamping block 34 is convexly provided with an extending part 341, the peripheral wall of the extending part 341 is concavely provided with an annular groove 343, the extending part 341 extends into the mounting groove 313 from top to bottom, the annular groove is provided with an O-shaped ring 342, the bottom surface of the clamping block 34 is propped against the bone needle holder 31, and the O-shaped ring 342 is propped against the bottom surface of the bone needle holder 31 so as to lock the relative positions of the clamping block 34 and the bone needle holder 31; this mounting groove 313 is rectangular groove, should stretch into portion and rectangular groove width adaptation, and stretch into the portion and can adjust rectangular groove length direction relatively.
The bone needle holder 31 is provided with two fixing portions 314 and a connecting portion 315 between the two fixing portions 314 in an upward protruding manner, and the top surface of the connecting portion 315 is provided with the above-mentioned placing groove 311 in a recessed manner; the top surface of the connecting portion 315 also has mating surfaces located at both sides of the placement groove 311; the locking mechanism 33 comprises a screw that passes through the bone pin cover and locks to the fixation portion or the mating surface.
Fix the fixing base on shin bone A, not only can adjust the needle file through the swing but also can adjust the needle file through sliding, patient's actual conditions freely adjusts when guaranteeing the operation, easy operation effectively solves the phenomenon of correcting the dislocation skew. Specifically, as shown in fig. 6 to 8, the osteotomy is shown as a1 in the figure, the bone needle is shown as D in the figure, the bone force lines a2 and A3 after the osteotomy intersect at an included angle, the bone force lines a2 and A3 are not on the same axis, at this time, the A3 and a2 can be made parallel by swinging the swinging seat 20, the distance between the A3 and the a2 is shown as C in the figure, and the bone force lines a2 and A3 are on the same axis by sliding the bone needle seat unit 30, so that the perfect correction is realized. According to needs, this external fixation frame still is provided with angle scale B, can directly perceivedly know through angle scale B and correct the angle.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.
Claims (8)
1. Nearly joint deformity corrects external fixation support, its characterized in that: the bone needle seat unit comprises a bone needle seat, a bone needle cover and a locking mechanism, wherein the bone needle seat unit is connected with the swing seat in a swinging mode, can be connected to the swing seat in a sliding mode and comprises a bone needle seat, the bone needle cover and the locking mechanism; the bone needle seat is connected on the swinging seat in a sliding way, and the driving mechanism is connected with the swinging seat and the bone needle seat; the driving mechanism comprises a screw rod and nut mechanism; the end surface of the swing seat is concavely provided with a sliding chute, the bone needle seat is convexly provided with a sliding block in a protruding way, and the sliding block is connected in the sliding chute in a sliding way; the screw rod nut mechanism comprises a screw rod which can be rotatably arranged on the swing seat and an internal thread hole which is arranged in the sliding block, and the screw rod is in threaded connection with the internal thread hole.
2. The external fixation frame for correcting proximal arthroplasty as claimed in claim 1, wherein: the end surface of the swing seat is also concavely provided with a guide groove, and a guide part is convexly arranged below the bone needle seat and is in adaptive connection with the guide groove.
3. The external fixation stent for correcting proximal arthroplasty according to claim 1 or 2, wherein: the bone needle seat is provided with a clamping block, and the top surface of the clamping block is concavely provided with the placing groove.
4. The external fixation frame for correcting proximal arthroplasty of claim 3 wherein: the bone needle seat is concavely provided with an upper and lower through mounting groove, the bottom surface of the clamping block is convexly provided with an extending part, the peripheral wall of the extending part is concavely provided with an annular groove, the extending part extends into the mounting groove from top to bottom, the annular groove is provided with an O-shaped ring, the bottom surface of the clamping block is propped against the bone needle seat, and the O-shaped ring is propped against the bottom surface of the bone needle seat.
5. The external fixation frame for correcting proximal arthroplasty of claim 4 wherein: this mounting groove is rectangular groove, should stretch into portion and rectangular groove width adaptation, and stretch into the portion and can adjust rectangular groove length direction relatively.
6. The external fixation stent for correcting proximal arthroplasty according to claim 1 or 2, wherein: the bone needle seat is convexly provided with two fixing parts and a connecting part positioned between the two fixing parts, and the top surface of the connecting part is concavely provided with the placing groove.
7. The external fixation frame for correcting proximal arthroplasty of claim 6 wherein: the top surface of the connecting part is also provided with matching surfaces positioned at two sides of the placing groove; the locking mechanism comprises a screw which passes through the bone needle cover and is locked on the fixing part or the matching surface.
8. The external fixation stent for correcting proximal arthroplasty according to claim 1 or 2, wherein: the swing seat comprises a connecting seat and two side plates which are fixedly connected to the connecting seat at intervals in parallel; the fixed seat is concavely provided with two insertion grooves, and the two side plates are respectively inserted into the two insertion grooves; and a locking screw is additionally arranged and is used for connecting the fixed seat and the two side plates and connecting the two side plates and the fixed seat together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811600706.6A CN109662767B (en) | 2018-12-26 | 2018-12-26 | Near joint deformity correction external fixation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811600706.6A CN109662767B (en) | 2018-12-26 | 2018-12-26 | Near joint deformity correction external fixation support |
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| Publication Number | Publication Date |
|---|---|
| CN109662767A CN109662767A (en) | 2019-04-23 |
| CN109662767B true CN109662767B (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811600706.6A Active CN109662767B (en) | 2018-12-26 | 2018-12-26 | Near joint deformity correction external fixation support |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112075996B (en) * | 2020-09-14 | 2021-08-06 | 杭州键嘉机器人有限公司 | Positioning and locking device for orthopedic surgery |
| CN113855271B (en) * | 2021-09-28 | 2023-06-30 | 北京市春立正达医疗器械股份有限公司 | Tibia extramedullary force line adjusting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058600U (en) * | 1989-07-17 | 1990-06-27 | 西安市红十字会医院 | Multi-functional fixing device for reduction of the fracture |
| CN1132067A (en) * | 1995-01-06 | 1996-10-02 | 小罗伯特·E·布思 | Instrumentation for use in orthopaedic surgery |
| US6102911A (en) * | 1997-02-13 | 2000-08-15 | Orthofix S.R.L. | Orthopaedic apparatus, particularly for the surgical correction of bone deformities |
| CN101262826A (en) * | 2005-09-15 | 2008-09-10 | Mikai股份公司 | Apparatus for treating malformative and traumatic conditions affecting the knee area |
| CN106691556A (en) * | 2016-11-18 | 2017-05-24 | 周海东 | Multi-azimuth reduction external fixator for bone fracture |
-
2018
- 2018-12-26 CN CN201811600706.6A patent/CN109662767B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058600U (en) * | 1989-07-17 | 1990-06-27 | 西安市红十字会医院 | Multi-functional fixing device for reduction of the fracture |
| CN1132067A (en) * | 1995-01-06 | 1996-10-02 | 小罗伯特·E·布思 | Instrumentation for use in orthopaedic surgery |
| US6102911A (en) * | 1997-02-13 | 2000-08-15 | Orthofix S.R.L. | Orthopaedic apparatus, particularly for the surgical correction of bone deformities |
| CN101262826A (en) * | 2005-09-15 | 2008-09-10 | Mikai股份公司 | Apparatus for treating malformative and traumatic conditions affecting the knee area |
| CN106691556A (en) * | 2016-11-18 | 2017-05-24 | 周海东 | Multi-azimuth reduction external fixator for bone fracture |
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| Publication number | Publication date |
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| CN109662767A (en) | 2019-04-23 |
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