CN211460462U - Unilateral external fixation support - Google Patents
Unilateral external fixation support Download PDFInfo
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- CN211460462U CN211460462U CN201921455649.7U CN201921455649U CN211460462U CN 211460462 U CN211460462 U CN 211460462U CN 201921455649 U CN201921455649 U CN 201921455649U CN 211460462 U CN211460462 U CN 211460462U
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- pressurizing
- extending
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- nail holder
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Abstract
The invention discloses a unilateral external fixation bracket, which comprises: the pressurization extension fixture, be located the left first multi-functional first spare of pressurization extension fixture, be located the second multi-functional first spare on pressurization extension fixture right side, first multi-functional first spare includes pressurization extension nail holder, the b type nail clamp of being connected with pressurization extension nail holder, and the second multi-functional first spare includes the ankle joint nail holder that micro-gap nail holder, be connected with the micro-gap nail holder and the ankle joint nail chuck of being connected with the ankle joint nail holder, the pressurization extension fixture is including adding the extension cover, be located the inside manual pressurization extension screw rod of adding the extension cover, the cover is established and is being connected the outside C type carbon fiber guide arm of manual pressurization extension screw rod, is located the inside slip extension rod that can the horizontal slip of C type carbon fiber guide arm. If two spherical sleeve nail clamps are adopted by the unilateral external fixation bracket joint head, the requirements of bending and rotation can be met, and the unilateral external fixation bracket joint head has better effects on reduction and fixation of wound and fracture at the position close to the joint of a human body.
Description
Technical Field
The invention relates to a single-side external fixing support, and belongs to the technical field of surgical medical instruments.
Background
The commonly used fixing modes for treating the limb fracture comprise an external fixing mode and an internal fixing mode. The external fixation mode comprises a small splint, a plaster bandage, an external fixation bracket, traction braking fixation and the like, and the internal fixation mode comprises incision of muscle tissues through operations, and insertion of steel plates, steel needles, screws and the like.
The internal fixation mode is adopted to treat the fracture of the limbs, so that the reduction of the fracture can be improved, but the removal of the fixing instrument needs a secondary operation, so that the pain is added to a patient, and the infection is very easy to occur during the operation, so that the functional disorder of the limbs after the fracture is healed is caused.
The external fixing bracket is drilled into the two ends of the fracture by a needle or a nail, and then the needle penetrating into the fracture is fixed on the external fixing bracket at the outside of the skin, and has the following functions: can keep the fracture end well reset; the two ends of the fracture can be retracted to prolong the limbs; the compression technology can be utilized to promote fracture healing; can correct early angular and rotational deformities, such as old fracture.
Because the bone screw placement position is inaccurate, the diaphysis is displaced up and down or the angle is deviated, the existing fixing support cannot accurately adjust the deviation of the displacement and the angle in the aspect of solving the problem, and the existing fixing support does not have an effective limb reconstruction fixing support for special cases such as bone deformity caused by congenital or trauma, C-shaped, O-shaped leg and ankle joint bending caused by congenital or trauma.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a single-side external fixing support, which solves the problem that the displacement and angle deviation cannot be accurately adjusted in the conventional fixing support.
In order to achieve the purpose, the invention adopts the following technical scheme: a unilateral external fixation stent comprising: the pressurizing and extending device comprises a pressurizing and extending device, a first multifunctional head piece positioned on the left side of the pressurizing and extending device, and a second multifunctional head piece positioned on the right side of the pressurizing and extending device, wherein the first multifunctional head piece comprises a pressurizing and extending nail holder and a b-shaped nail clamp connected with the pressurizing and extending nail holder, the second multifunctional head piece comprises a micro-motion nail holder, an ankle joint nail holder connected with the micro-motion nail holder and an ankle joint nail chuck connected with the ankle joint nail holder, the pressurizing and extending device comprises a pressurizing and extending sleeve, a manual pressurizing and extending screw rod positioned in the pressurizing and extending sleeve, a C-shaped carbon fiber guide rod sleeved outside the manual pressurizing and extending screw rod, and a sliding and extending rod positioned in the C-shaped carbon fiber guide rod and capable of sliding left and right, a hand wheel is arranged in the pressurizing and extending nail holder, the hand wheel is connected with the manual pressurizing and extending screw rod, the manual pressurizing and extending screw rod is driven to move by rotating the hand wheel, a spring, a fine motion adjusting locking bolt, a limiting bolt, an active pressurizing fine motion eccentric shaft and a fine motion central ball are arranged in the fine motion nail clamping seat, and the fine motion eccentric shaft can be rotated to perform fine motion; and the micro-motion adjustment locking bolt is loosened, and then the passive micro-motion pressurization can be realized.
The b-shaped nail holder comprises a first central sphere and a spherical outer sleeve positioned on the first central sphere, and the first central sphere is connected with the pressurizing and extending nail holder seat through a crankshaft of a central hole.
The micro-motion nail holder is provided with a second central ball body connected with a crankshaft through a central hole through the ankle joint nail holder, and the second central ball body and the micro-motion nail holder are molded into an integral structure.
The ankle joint nail clamping seat and the ankle joint nail clamping head are provided with a third central ball body connected through a crankshaft of a central hole, and the third central ball body and the ankle joint nail clamping head are molded into an integral structure.
The spherical outer sleeves are arranged outside the first central sphere, the second central sphere and the third central sphere and are wrapped outside the spheres by adopting a secondary injection molding process to form a whole, and the spherical outer sleeves can rotate with the first central sphere, the second central sphere and the third central sphere.
The b-th nail clamp and the connecting nail clamp seat can rotate left and right 216 degrees, can rotate obliquely within 360 degrees by 25 degrees, rotate the crankshaft to press down, can directly lock any rotation between the b-th nail clamp and the pressurizing extension nail clamp seat 21, and plays a role in locking the joint.
Compared with the prior art, the invention has the following advantages:
1. a manual pressurizing extension screw rod and a C-shaped carbon fiber guide rod are arranged in the pressurizing extension sleeve; the pressurizing and extending outer sleeve is pushed by rotating the hand wheel, so that the pressurizing and extending functions are realized;
2. the guide rod on the other side slides freely, which is beneficial to the restoration in the operation, and the pressurizing and extending device on the two sides is adopted, so that the pressurizing and extending length is increased by nearly one time compared with that of the guide rod on one side, the guide rod is basically in a closed circular ring shape, and the bearing capacity of the guide rod is far greater than that of the guide rods in other shapes;
3. the b-shaped nail clamp consists of a ball body and a spherical outer sleeve, wherein the central hole is a crankshaft hole and is connected with the nail clamp seat, and the spherical outer sleeve is wrapped outside the ball by adopting a secondary injection molding process to form a whole body but can rotate with the ball. The connecting nail holder can rotate left and right 216 degrees, can rotate obliquely within 360 degrees by 25 degrees, and can directly lock any rotation between the nail clamp and the nail holder by rotating the crankshaft to press down, thereby playing a role in locking the joint.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the sliding extension pole and the extended state of the sliding extension pole of the present invention;
FIG. 3 is an exploded view of the overall structure of the present invention;
FIG. 4 is a schematic view of the structure of the C-shaped carbon fiber guide rod and the sliding extension rod of the present invention;
FIG. 5 is a schematic view of the b-type staple holder of the present invention angularly rotated 25 within 360;
FIG. 6 is a schematic view of a type b staple clip of the present invention rotated side-to-side 216;
in the figure: 1-a pressurized elongation device; 11-adding a rolling long sleeve; 111-manually pressurizing the extension screw; 112-C carbon fiber guide rods; 113-sliding extension bar; 2-a first multi-functional head piece; 21-pressurizing the extension nail holder; 211-hand wheel; type 22-b staple clips; 221-a first central sphere; 222-a spherical shell; 3-a second multi-functional head piece; 31-micro-motion nail holder; 311-a spring; 312-micro-motion adjusting locking bolt; 313-a limit bolt; 314-actively pressurizing the micro eccentric shaft; 315-second central sphere; 32-ankle nail holder; 33-ankle nail cartridge; 331-third central sphere.
Detailed Description
The technical solutions in the implementation of the present invention will be made clear and fully described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, an embodiment of the present invention provides a unilateral external fixation bracket, including: the pressurizing and extending device comprises a pressurizing and extending device 1, a first multifunctional head part 2 positioned on the left side of the pressurizing and extending device 1, and a second multifunctional head part 3 positioned on the right side of the pressurizing and extending device 1, wherein the first multifunctional head part 2 comprises a pressurizing and extending nail holder 21 and a b-shaped nail holder 22 connected with the pressurizing and extending nail holder 21, the second multifunctional head part 3 comprises a micro-motion nail holder 31, an ankle joint nail holder 32 connected with the micro-motion nail holder 31 and an ankle joint nail chuck 33 connected with the ankle joint nail holder 32, the pressurizing and extending device 1 comprises a pressurizing and extending sleeve 11, a manual pressurizing and extending screw 111 positioned inside the pressurizing and extending sleeve 11, a C-shaped carbon guide rod fiber 112 sleeved outside the manual pressurizing and extending screw 111, and a sliding and extending rod 113 positioned inside the C-shaped carbon fiber guide rod 112 and capable of sliding left and right, a hand wheel 211 is arranged inside the pressurizing and extending nail holder 21, and the hand wheel 211 is connected with the manual pressurizing and extending screw, the hand wheel 211 is rotated to drive the manual pressurizing extension screw 111 to move, so as to push the pressurizing extension sleeve 11 to move, a spring 311, a fine-motion adjusting locking bolt 312, a limiting bolt 313 and an active pressurizing fine-motion eccentric shaft 314 are arranged in the fine-motion nail holder 31, and the active pressurizing fine-motion eccentric shaft 314 is rotated to perform fine motion; and the micro-motion adjustment locking bolt 312 is loosened, and then the passive micro-motion pressurization is realized.
The b-clip 22 comprises a first central sphere 221, a spherical jacket 222 outside the first central sphere 221, the first central sphere 221 being connected to the pressurized elongated clip holder 21 by means of a crankshaft.
The micro-motion nail holder 31 is connected with the ankle joint nail holder 32 through a second central sphere 315, and the second central sphere 315 and the micro-motion nail holder 31 are molded into an integral structure.
The ankle nail holder 32 and the ankle nail holder 33 are provided with a third central sphere 331, and the third central sphere 331 and the ankle nail holder 33 are molded into an integral structure.
The outer parts of the first central sphere 221, the second central sphere 315 and the third central sphere 331 are all provided with spherical outer sleeves 222, and the spherical outer sleeves 222 are wrapped on the outer parts of the first central sphere 221, the second central sphere 315 and the third central sphere 331 by adopting a secondary injection molding process to form a whole, but can rotate with the first central sphere, the second central sphere and the third central sphere respectively.
The b-th nail clamp 22 can rotate left and right 216 degrees on the pressurizing and extending nail clamp seat 21, can rotate obliquely within 360 degrees by 25 degrees, rotates a crankshaft to press down, can directly lock any rotation between the b-type nail clamp 22 and the pressurizing and extending nail clamp seat 21, and plays a role in joint locking.
The invention arranges a manual pressurizing extension screw 111 and a C-shaped carbon fiber guide rod 112 in a pressurizing extension sleeve; the hand wheel 211 is rotated to push the pressurizing lengthening sleeve 11, so that the pressurizing lengthening function is achieved.
The other side sliding extension rod 113 adopts free sliding, which is beneficial to the restoration in operation, and adopts a pressurizing extension device at two sides, so that the length of pressurizing extension is increased by nearly one time compared with that of a single side, the shape of the extension rod is basically a closed circular ring shape, and the bearing capacity of the extension rod is far greater than that of guide rods with other shapes.
The pressurizing and extending device 1 comprises a pressurizing and extending sleeve 11, a manual pressurizing and extending screw rod 111 positioned in the pressurizing and extending sleeve 11, a C-shaped carbon fiber guide rod 112 sleeved outside the manual pressurizing and extending screw rod 111, and a sliding extending rod 113 positioned in the C-shaped carbon fiber guide rod 112 and capable of sliding left and right, wherein a hand wheel 211 is arranged in a pressurizing and extending nail holder 21, the hand wheel 211 is connected with the manual pressurizing and extending screw rod 111, the hand wheel 211 is rotated to drive the manual pressurizing and extending screw rod 111 to move so as to push the pressurizing and extending sleeve 11 to move, a spring 311, a fine adjustment locking bolt 312, a limiting bolt 313 and a driving pressurizing fine movement eccentric shaft 314 are arranged in a fine movement nail holder 31, and fine movement can be realized by rotating the driving pressurizing fine movement eccentric; and the micro-motion adjustment locking bolt 312 is loosened, and then the passive micro-motion pressurization is realized.
The b-type nail clip 22 can rotate at 216 degrees left and right on the pressurizing and extending nail clip seat 21, can rotate at 25 degrees obliquely within the range of 360 degrees, and basically meets the rotating angle of the human joint. Such as: hip joints, which can rotate back and forth, and also can rotate inwards and outwards; the knee joint rotates forwards and backwards and also rotates inwards and outwards at an angle of 5-8 degrees; the ankle joint also has the possibility of turning inside and outside, and the elbow joint, the shoulder joint and the wrist joint also have the possibility of turning inside and outside.
If two spherical nail-sleeved clamps are adopted, the joint head of the invention can meet the requirements of bending and rotation, and has better effects on the reduction and fixation of wound and fracture at the position close to the joint of a human body. Especially, the later-stage functional exercise is more convenient and meets the requirement of human joint rotation.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a unilateral external fixation support which characterized in that it includes: the pressurizing and extending device comprises a pressurizing and extending device (1), a first multifunctional head piece (2) positioned on the left side of the pressurizing and extending device (1), and a second multifunctional head piece (3) positioned on the right side of the pressurizing and extending device (1), wherein the first multifunctional head piece (2) comprises a pressurizing and extending nail holder (21) and a b-shaped nail clamp (22) connected with the pressurizing and extending nail holder (21), the second multifunctional head piece (3) comprises a micro-motion nail holder (31), an ankle joint nail holder (32) connected with the micro-motion nail holder (31) and an ankle joint nail holder (33) connected with the ankle joint nail holder (32), the pressurizing and extending device (1) comprises a pressurizing and extending sleeve (11), a manual pressurizing and extending screw rod (111) positioned in the pressurizing and extending sleeve (11), a C-type carbon fiber guide rod (112) sleeved outside the manual pressurizing and extending screw rod (111), and a sliding extending rod (113) positioned in the C-type carbon fiber guide rod (112) and capable of sliding left and right, a hand wheel (211) is arranged in the pressurizing and extending nail holder (21), the hand wheel (211) is connected with a manual pressurizing and extending screw rod (111), the hand wheel (211) is rotated to drive the manual pressurizing and extending screw rod (111) to move so as to push the pressurizing and extending sleeve (11) to move, a spring (311), a fine motion adjusting locking bolt (312), a limiting bolt (313) and a driving pressurizing fine motion eccentric shaft (314) are arranged in the fine motion nail holder (31), and the driving pressurizing fine motion eccentric shaft (314) is rotated to perform fine motion; and the micro-motion pressurization can be realized passively by loosening the micro-motion adjusting locking bolt (312).
2. The unilateral external fixation bracket of claim 1, wherein: the b-shaped nail holder (22) comprises a first central sphere (221) and a spherical outer sleeve (222) positioned outside the first central sphere (221), and the first central sphere (221) is connected with the pressurizing and extending nail holder (21) through a crankshaft.
3. The unilateral external fixation bracket of claim 1, wherein: the micro-motion nail holder (31) is connected with the ankle joint nail holder (32) through a second central sphere (315), and the second central sphere (315) and the micro-motion nail holder (31) are molded into an integral structure.
4. The unilateral external fixation bracket of claim 1, wherein: the ankle joint nail clamping seat (32) and the ankle joint nail clamping head (33) are provided with a third central sphere (331), and the third central sphere (331) and the ankle joint nail clamping head (33) are molded into an integral structure.
5. The unilateral external fixation bracket of claim 2, wherein: the spherical outer sleeves (222) are arranged outside the first central sphere (221), the second central sphere (315) and the third central sphere (331), and the spherical outer sleeves (222) are wrapped outside the first central sphere (221), the second central sphere (315) and the third central sphere (331) by a secondary injection molding process to form a whole, but can rotate with the first central sphere (221), the second central sphere (315) and the third central sphere (331) respectively.
6. The unilateral external fixation bracket of claim 2, wherein: the b-shaped nail clamp (22) can rotate left and right 216 degrees on the pressurizing and extending nail clamp seat (21), can rotate obliquely within 360 degrees for 25 degrees, rotates a crankshaft to press down, can directly lock any rotation between the b-shaped nail clamp (22) and the pressurizing and extending nail clamp seat (21), and plays a role in joint locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455649.7U CN211460462U (en) | 2019-09-04 | 2019-09-04 | Unilateral external fixation support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455649.7U CN211460462U (en) | 2019-09-04 | 2019-09-04 | Unilateral external fixation support |
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| CN211460462U true CN211460462U (en) | 2020-09-11 |
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| CN201921455649.7U Active CN211460462U (en) | 2019-09-04 | 2019-09-04 | Unilateral external fixation support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022073387A1 (en) * | 2020-10-10 | 2022-04-14 | 陈聚伍 | Single-rod dual-nail external fixing frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022073387A1 (en) * | 2020-10-10 | 2022-04-14 | 陈聚伍 | Single-rod dual-nail external fixing frame |
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Effective date of registration: 20230118 Address after: No.73, central North Road, Gulou District, Nanjing, Jiangsu Province, 210000 Patentee after: Nanjing gocen medical equipment LLC Address before: 210000 No.14, Liutang village, Qixia District, Nanjing City, Jiangsu Province Patentee before: Zhang Wei |