CN215458569U - Pedicle screw interlocking handle - Google Patents
Pedicle screw interlocking handle Download PDFInfo
- Publication number
- CN215458569U CN215458569U CN202120408294.7U CN202120408294U CN215458569U CN 215458569 U CN215458569 U CN 215458569U CN 202120408294 U CN202120408294 U CN 202120408294U CN 215458569 U CN215458569 U CN 215458569U
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- arm
- arm body
- adjusting
- mounting
- pedicle screw
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- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 210000000988 bone and bone Anatomy 0.000 abstract description 6
- 208000001132 Osteoporosis Diseases 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000002512 anti-withdrawal effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 208000015122 neurodegenerative disease Diseases 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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Abstract
The utility model discloses a pedicle screw interlocking handle, which comprises a connecting part, a sighting arm and a guide sleeve; an external thread is arranged at one end of the connecting part; the aiming arm comprises a first arm body, a second arm body and a mounting arm; the first arm body and the connecting portion are fixedly connected or detachably connected with one end, away from the external thread, of the connecting portion, the first arm body is hinged to the second arm body, one end, away from the first arm body, of the second arm body is hinged to the mounting arm, the mounting arm is provided with a mounting hole, the guide sleeve is mounted in the mounting hole, and the axis of the guide sleeve is intersected with the axis of the connecting portion. This scheme can be through the change of the position of installation arm to change the angle and the position of uide bushing, and then adjust advancing of cortex bone screw or other ordinary medical screw nail angle and advancing the nail position, make medical personnel can adjust according to the patient of the different state of an illness, thereby make the operation effect better, this scheme is better to the patient's of the different states of an illness suitability.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a pedicle screw interlocking handle.
Background
The internal fixation of the pedicle screw is a lumbar internal fixation method which is widely applied at present, but the traditional pedicle screw technology mainly depends on the holding effect of cancellous bone on the screw for fixation, the axial extraction force is obviously reduced in the case of osteoporosis, the fixation strength is reduced, and the fixation failure rate is increased. The holding effect of the cancellous bone on the screw is an important index for measuring the fixing strength of the screw, and the elderly patients with lumbar degenerative diseases accompanied with osteoporosis need stronger inner fixed axial anti-pull force and stability to maintain the stability of the spine after operation.
The existing operation has a scheme of interlocking by using a pedicle screw and a common cortical bone screw or other medical screws, and the medical screws penetrate through an interlocking hole of the pedicle screw so as to solve the problem that the anti-withdrawal force of a single pedicle screw used by an osteoporosis patient is insufficient. The cross-locking pedicle screw sighting device matched with the surgical method comprises a connecting rod, a sighting arm, a sleeve and a guide sleeve, but the guide sleeve of the existing cross-locking pedicle screw sighting device is generally not adjustable, the screw feeding angle and the screw feeding position of a medical screw for cross-locking cannot be adjusted according to the actual condition of the surgery, and the cross-locking pedicle screw sighting device is poor in adaptability to patients with different diseases.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a pedicle screw interlocking handle, which solves one or more technical problems in the prior art and at least provides a beneficial selection or creation condition.
The solution of the utility model for solving the technical problem is as follows:
a pedicle screw interlocking handle comprises a connecting part, an aiming arm and a guide sleeve; an external thread is arranged at one end of the connecting part; the aiming arm comprises a first arm body, a second arm body and a mounting arm; the first arm body and the connecting portion are fixedly connected or detachably connected with one end, away from the external thread, of the connecting portion, the first arm body is hinged to the second arm body, one end, away from the first arm body, of the second arm body is hinged to the mounting arm, the mounting arm is provided with a mounting hole, the guide sleeve is mounted in the mounting hole, and the axis of the guide sleeve is intersected with the axis of the connecting portion.
Through above-mentioned scheme, the external screw thread of connecting portion and the internal thread threaded connection of the crown of a nail of pedicle of vertebral arch nail make interlocking handle and pedicle of vertebral arch nail fixed, medical personnel observe and decide the nail position and the nail angle of advancing of interlocking nail through C arm machine afterwards to adjust the second arm body and installation arm, make the uide bushing to the interlocking nail after the direction, the interlocking nail can accurately enter into to the interlocking hole of pedicle of vertebral arch nail. This scheme can be through the change of the position of installation arm to change the angle and the position of uide bushing, and then adjust advancing of cortex bone screw or other ordinary medical screw nail angle and advancing the nail position, make medical personnel can adjust according to the patient of the different state of an illness, thereby make the operation effect better, this scheme is better to the patient's of the different states of an illness suitability.
As a further improvement of the above technical solution, hinge assemblies are arranged between the first arm body and the second arm body, and between the second arm body and the mounting arm; the hinge assembly comprises an adjusting turntable, a fixed disc and a reset piece, and the adjusting turntable is rotatably connected with the fixed disc; the fixed disc is provided with a plurality of limiting grooves which are distributed in a circumferential array around the rotating axis of the adjusting turntable; a limiting block and an adjusting button are protruded on the same end face of the adjusting turntable, the limiting block is in inserting fit with the limiting groove, and the adjusting button penetrates out of the fixed disk and is connected with the fixed disk in a sliding mode; the reset piece enables the adjusting turntable to always have the tendency of moving towards the fixed disk; a fixed disc of the hinge assembly positioned between the first arm body and the second arm body is fixedly connected with the first arm body, an adjusting turntable is connected with the second arm body in a sliding manner, and the adjusting turntable slides along the protruding direction of the adjusting button; and the fixed disk of the hinge assembly between the second arm body and the installation arm is fixedly connected with the second arm body, the adjusting turntable is connected with the installation arm in a sliding manner, and the adjusting turntable slides along the protruding direction of the adjusting button.
Through the scheme, the limiting block and the limiting groove are separated by pressing the adjusting button, and then the angle between the two components connected with the hinge assembly can be adjusted, so that the angle and the position of the mounting hole in the mounting arm can be adjusted, and the position and the angle of the guide sleeve and the screw feeding angle and the screw feeding position of the common medical screw guided by the guide sleeve can be adjusted. After adjusting suitable position, medical personnel cancel the power of applying to adjustment button, adjust the carousel and receive the effort that resets this moment and be close to the fixed disk, make the stopper peg graft in the spacing groove, fix the relative position of two parts of being connected with hinge assembly. The hinge assembly has simple processes of adjusting and relatively fixing the connected components, and is favorable for the rapid operation of the operation.
As a further improvement of the technical scheme, the adjusting rotary table is provided with a rotation limiting groove which is a polygonal groove body, the second arm body and the mounting arm are provided with rotation limiting blocks, the rotation limiting blocks are matched with the rotation limiting groove, and the rotation limiting blocks are connected with the rotation limiting groove in a sliding mode.
Through above-mentioned scheme, the cooperation of limit commentaries on classics groove and limit commentaries on classics piece can be avoided adjusting the carousel and take place relative rotation with corresponding the component and lead to the problem of the fixed effect variation of hinge assembly.
As a further improvement of the technical scheme, the circumference of the end face of the limiting block, which is far away from the adjusting turntable, is provided with a chamfer.
Through the scheme, the chamfer angle enables the limiting block to be inserted into the limiting groove more simply.
As a further improvement of the technical scheme, the limiting grooves are distributed along the circumference in an equidistant array mode, the number of the limiting blocks is matched with that of the limiting grooves, and the limiting blocks correspond to the limiting grooves one to one.
Through above-mentioned scheme, stability when a plurality of stopper can strengthen adjusting carousel and fixed disk relatively fixed to can prolong the life of interlocking handle.
As a further improvement of the technical scheme, the mounting hole is a threaded hole, an external thread is arranged at one end of the guide sleeve, and the guide sleeve is in threaded connection with the mounting hole.
Through the technical scheme, the guide sleeve and the mounting hole can be connected through threads to ensure the guide sleeve to be installed stably, and the guide sleeve can be finely adjusted to adapt to patients with different diseases.
The utility model has the beneficial effects that: this scheme can be through the change of the position of installation arm to change the angle and the position of uide bushing, and then adjust advancing of cortex bone screw or other ordinary medical screw nail angle and advancing the nail position, make medical personnel can adjust according to the patient of the different state of an illness, thereby make the operation effect better, this scheme is better to the patient's of the different states of an illness suitability.
The utility model is used in the technical field of medical instruments.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the utility model, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic illustration of an explosive structure according to an embodiment of the utility model;
fig. 3 is a schematic view of the overall structure of the adjustment dial according to the embodiment of the present invention.
In the figure, 100, the connecting part; 200. an aiming arm; 210. a first arm body; 220. a second arm body; 230. mounting an arm; 300. a guide sleeve; 400. a hinge assembly; 410. adjusting the turntable; 411. a limiting block; 412. an adjustment button; 413. a rotation limiting groove; 420. fixing the disc; 421. a limiting groove; 430. a reset member; 500. and a rotation limiting block.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the utility model can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1 to 3, a pedicle screw interlocking handle includes a connecting portion 100, an aiming arm 200, and a guide sleeve 300.
One end of the connection part 100 is provided with an external thread.
The aiming arm 200 includes a first arm 210, a second arm 220, and a mounting arm 230.
The first arm 210 is fixedly connected to an end of the connecting portion 100 away from the external thread. The one end that connecting portion 100 was kept away from to first arm body 210 is articulated with second arm body 220, and the one end that first arm body 210 was kept away from to second arm body 220 is articulated with installation arm 230, has seted up the mounting hole on the installation arm 230, and the mounting hole sets up to the screw hole, and the one end of uide bushing 300 is provided with the external screw thread, and uide bushing 300 is installed in the mounting hole, uide bushing 300 and mounting hole threaded connection. The axis of the guide sleeve 300 intersects the axis of the connecting portion 100.
Hinge assemblies 400 are disposed between the first arm 210 and the second arm 220, and between the second arm 220 and the mounting arm 230.
The hinge assembly 400 includes an adjustment dial 410, a fixed disk 420, and a reset member 430, and the adjustment dial 410 is rotatably coupled to the fixed disk 420.
The fixed plate 420 is provided with a plurality of limiting grooves 421, and the plurality of limiting grooves 421 are distributed in an array at equal intervals around the circumference of the rotation axis of the adjusting turntable 410.
The same terminal surface of regulation carousel 410 is gone up the protrusion and is had stopper 411 and adjustment button 412, and the quantity of stopper 411 matches with the quantity of spacing groove 421, stopper 411 and spacing groove 421 one-to-one, stopper 411 and spacing groove 421 grafting cooperation. The circumference of the end face of the limiting block 411 far away from the adjusting turntable 410 is provided with a chamfer. The adjustment button 412 extends out of the fixed plate 420 and is slidably coupled to the fixed plate 420.
The restoring member 430 is provided as a compression spring, and the restoring member 430 causes the dial 410 to always have a tendency to move toward the fixed dial 420.
The fixed disc 420 of the hinge assembly 400 between the first arm 210 and the second arm 220 is fixedly connected with the first arm 210, the adjusting dial 410 is slidably connected with the second arm 220, and the adjusting dial 410 is slidably connected along the protruding direction of the adjusting button 412.
The fixed plate 420 of the hinge assembly 400 between the second arm 220 and the mounting arm 230 is fixedly connected with the second arm 220, the adjusting dial 410 is slidably connected with the mounting arm 230, and the adjusting dial 410 is slidably moved along the protruding direction of the adjusting button 412.
The adjusting turntable 410 is provided with a limited rotation groove 413, the limited rotation groove 413 is a polygonal groove body, the second arm body 220 and the mounting arm 230 are both provided with a limited rotation block 500, the limited rotation block 500 is matched with the limited rotation groove 413, and the limited rotation block 500 is connected with the limited rotation groove 413 in a sliding mode.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.
Claims (6)
1. The utility model provides a pedicle screw interlocking handle which characterized in that: comprises a connecting part (100), an aiming arm (200) and a guide sleeve (300); one end of the connecting part (100) is provided with an external thread; the aiming arm (200) comprises a first arm body (210), a second arm body (220) and a mounting arm (230); the one end fixed connection or the detachable connection of external screw thread are kept away from with connecting portion (100) to first arm body (210), the one end that connecting portion (100) were kept away from in first arm body (210) is articulated with second arm body (220), the one end that first arm body (210) were kept away from in second arm body (220) is articulated with installation arm (230), the mounting hole has been seted up on installation arm (230), uide bushing (300) are installed in the mounting hole, the axis of uide bushing (300) is crossing with the axis of connecting portion (100).
2. The pedicle screw interlocking handle as claimed in claim 1, wherein: hinge assemblies (400) are arranged between the first arm body (210) and the second arm body (220) and between the second arm body (220) and the mounting arm (230);
the hinge assembly (400) comprises an adjusting turntable (410), a fixed disc (420) and a resetting piece (430), wherein the adjusting turntable (410) is rotatably connected with the fixed disc (420); the fixed disc (420) is provided with a plurality of limiting grooves (421), and the limiting grooves (421) are distributed in a circumferential array around the rotating axis of the adjusting turntable (410);
a limiting block (411) and an adjusting button (412) are protruded on the same end face of the adjusting turntable (410), the limiting block (411) is in plug-in fit with the limiting groove (421), and the adjusting button (412) penetrates through the fixed disc (420) and is connected with the fixed disc (420) in a sliding manner;
the reset piece (430) enables the adjusting turntable (410) to always have the tendency of moving towards the fixed disk (420);
a fixed disc (420) of the hinge assembly (400) positioned between the first arm body (210) and the second arm body (220) is fixedly connected with the first arm body (210), an adjusting turntable (410) is connected with the second arm body (220) in a sliding manner, and the adjusting turntable (410) slides along the protruding direction of an adjusting button (412);
the fixed disc (420) of the hinge assembly (400) between the second arm body (220) and the mounting arm (230) is fixedly connected with the second arm body (220), the adjusting turntable (410) is connected with the mounting arm (230) in a sliding mode, and the adjusting turntable (410) slides in the protruding direction of the adjusting button (412).
3. The pedicle screw interlocking handle as claimed in claim 2, wherein: the adjustable rotary table is characterized in that a limited rotary groove (413) is formed in the adjusting rotary table (410), the limited rotary groove (413) is formed into a polygonal groove body, the second arm body (220) and the mounting arm (230) are provided with limited rotary blocks (500), the limited rotary blocks (500) are matched with the limited rotary groove (413), and the limited rotary blocks (500) are connected with the limited rotary groove (413) in a sliding mode.
4. The pedicle screw interlocking handle as claimed in claim 2, wherein: and a chamfer is arranged on the periphery of the end face, far away from the adjusting turntable (410), of the limiting block (411).
5. The pedicle screw interlocking handle as claimed in claim 2, wherein: a plurality of spacing groove (421) distribute along circumference equidistance array, the quantity of stopper (411) and the quantity phase-match of spacing groove (421), stopper (411) and spacing groove (421) one-to-one.
6. The pedicle screw interlocking handle as claimed in claim 1, wherein: the mounting hole is set as a threaded hole, an external thread is arranged at one end of the guide sleeve (300), and the guide sleeve (300) is in threaded connection with the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120408294.7U CN215458569U (en) | 2021-02-24 | 2021-02-24 | Pedicle screw interlocking handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120408294.7U CN215458569U (en) | 2021-02-24 | 2021-02-24 | Pedicle screw interlocking handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215458569U true CN215458569U (en) | 2022-01-11 |
Family
ID=79771208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120408294.7U Expired - Fee Related CN215458569U (en) | 2021-02-24 | 2021-02-24 | Pedicle screw interlocking handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215458569U (en) |
-
2021
- 2021-02-24 CN CN202120408294.7U patent/CN215458569U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |