CN218186919U - Guider for hallux valgus operation - Google Patents
Guider for hallux valgus operation Download PDFInfo
- Publication number
- CN218186919U CN218186919U CN202221695838.3U CN202221695838U CN218186919U CN 218186919 U CN218186919 U CN 218186919U CN 202221695838 U CN202221695838 U CN 202221695838U CN 218186919 U CN218186919 U CN 218186919U
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- Prior art keywords
- guide
- needle
- sleeve
- hallux valgus
- piece
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- 206010061159 Foot deformity Diseases 0.000 title claims abstract description 22
- 208000001963 Hallux Valgus Diseases 0.000 title claims abstract description 22
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000001356 surgical procedure Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008092 positive effect Effects 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 210000001872 metatarsal bone Anatomy 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010072170 Skin wound Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to the technical field of medical instruments, in particular to a guider for hallux valgus surgery, which comprises a positioning needle, a guide piece, a guide needle sleeve and a first fixing component; the positioning needle and the guide needle sleeve are respectively connected with the guide piece, and the guide needle sleeve is used for guiding the needle insertion and withdrawal of the guide needle; the guide part is provided with a circular arc-shaped guide rail, the guide pin sleeve can slide along a circular arc-shaped path relative to the guide part under the guidance of the guide rail so as to be arranged in a crossed manner, and the first fixing component is used for fixing the guide pin sleeve on the guide part. The utility model provides a hallux valgus for operation director has the guide effect to the guide pin, can guarantee that guide pin and location needle are located the coplanar. The guide for the hallux valgus operation can realize accurate and quick screw guide pin insertion, and has positive effects of shortening operation time, reducing operation wound and saving medical resources.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a bullnose is used in operation of hallux valgus.
Background
At present, the minimally invasive hallux valgus orthopedic technology is developed to the third generation, namely, minimally invasive osteotomy of the distal metatarsal chevron and osteotomy of the proximal phalanx akin are carried out and fixed by screws. The technique can realize percutaneous minimally invasive abrasive drilling osteotomy and percutaneous outward metatarsal distal end displacement, thereby achieving the purpose of correcting the interplantar angle and the hallux valgus angle.
This technique typically employs percutaneous cannulated screw fixation, requiring access from the proximal base of the metatarsal to the distal end of the distal metatarsal, which is displaced outward. The existing technology is to place the guide pin through the skin blindly, and the C-arm machine is screwed into the screw along the guide pin to fix after confirming the satisfied position of the guide pin. Generally, 2 screws are inserted through the metatarsal osteotomy end, and the lateral screws preferably pass through the "inner and outer" passages (i.e., the screws enter from the medial cortex of the proximal metatarsal, and then exit from the lateral cortex and enter the distal metatarsal osteotomy end) to achieve a strong fixation.
After the distal end of the metatarsal is moved outwards, the screw passes through the narrow channel at the osteotomy end. Therefore, in order to achieve the goal of placing two screws in a narrow channel, the guide pin is often adjusted repeatedly for many times when being placed, and the C-arm machine is confirmed by multiple perspectives, which results in long operation time, more skin wounds and high infection risk. Therefore, an auxiliary tool is urgently needed to be designed, and a doctor can conveniently and accurately and quickly insert the screw guide pin.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a guider for hallux valgus operation.
Specifically, the technical scheme of the utility model is:
a guide for a hallux valgus operation comprises a positioning needle, a guide piece, a guide needle sleeve and a first fixing component; the positioning needle and the guide pin sleeve are respectively connected with the guide piece, and the guide pin sleeve is used for guiding the needle insertion and needle withdrawal of the guide pin; the guide part is provided with a circular arc-shaped guide rail, the guide pin sleeve can slide along a circular arc-shaped route relative to the guide part under the guidance of the guide rail so as to arrange the guide pins in a crossed manner, and the first fixing component is used for fixing the guide pin sleeve on the guide part.
Preferably, a second fixing component is further included; the guide part is used for guiding the relative movement between the guide part and the positioning needle so as to parallelly place the guide needle; the second fixing component is used for fixedly connecting the guide piece with the positioning needle.
Preferably, the guide part is a through hole arranged on the guide part, the positioning needle passes through the through hole, and the diameter of the through hole is matched with the outer diameter of the needle tail of the positioning needle; the second fixing component comprises two nuts, the two nuts are in threaded connection with the needle tail of the positioning needle, and the guide piece is clamped between the two nuts.
Preferably, the guide piece is provided with two limiting grooves corresponding to the two nuts, the nuts are arranged in the limiting grooves, and the limiting grooves are used for limiting the radial movement of the nuts.
Preferably, the guide piece is provided with angle scales along the guide rail.
Preferably, the first fixing component comprises a fixing sleeve, a pressing block, a compression spring, a guide block and a locking nut; the guide rail is formed by arranging an arc-shaped through hole on the guide piece, the fixed sleeve is provided with a screw rod, and the screw rod sequentially penetrates through the pressing block, the compression spring, the guide block and the arc-shaped through hole on the guide piece to be in threaded connection with the locking nut.
Preferably, the pressing block and the guide block are respectively provided with a yielding groove corresponding to the compression spring, the pressing block and the guide block are respectively provided with an anti-skidding tooth, and the anti-skidding tooth on the pressing block is meshed with the anti-skidding tooth on the guide block.
The utility model has the advantages of:
the utility model provides a hallux valgus for operation director has the guide effect to the guide pin, can guarantee that guide pin and location needle are located the coplanar. The guide for the hallux valgus operation can realize accurate and quick screw guide pin insertion, and has positive effects of shortening operation time, reducing operation wound and saving medical resources.
Drawings
FIG. 1 is a view of the construction of a guide for hallux valgus surgery;
FIG. 2 is a block diagram of the guide shown in FIG. 1;
FIG. 3 is a block diagram of another perspective of the guide shown in FIG. 1;
FIG. 4 is an exploded view of the first securing assembly shown in FIG. 1;
fig. 5 is an exploded view of the first fixing assembly shown in fig. 1 from another perspective.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In one embodiment, as shown in fig. 1, the guide for hallux valgus surgery provided by the present invention comprises a positioning needle 1, a guide 2, a guide needle cannula 3 and a first fixing component 5; the positioning needle 1 and the guide pin sleeve 3 are respectively connected with the guide part 2, and the guide pin sleeve 3 is used for guiding the needle insertion and needle withdrawal of a guide pin (not shown); the guide part 2 is provided with a circular arc-shaped guide rail 21, the guide pin cannula 3 can slide along a circular arc-shaped path relative to the guide part 2 under the guidance of the guide rail 21 so as to be inserted with guide pins in a crossed manner, and the first fixing component 5 is used for fixing the guide pin cannula 3 on the guide part 2.
When in use, the positioning needle 1 is firstly placed into the distal end of the metatarsal from the inner lower part to the outer upper part, and the distal end of the metatarsal can be rotationally reset by rotating the positioning needle 1. Then, fix guide pin sleeve 3 in a required position to put into a guide pin from guide pin sleeve 3, fix guide pin sleeve 3 in another required position again, and put into another guide pin from guide pin sleeve 3, so far just crossed and put into two guide pins, convenient operation.
In this embodiment, the guide for hallux valgus surgery further comprises a second fixing member 4; the positioning needle 1 is connected with the guide part 2 in a relatively movable manner, the guide part 2 is provided with a guide part, and the guide part is used for guiding the relative movement between the guide part 2 and the positioning needle 1; the second fixing component 4 is used for fixedly connecting the guide 2 with the positioning needle 1. Adopt the design that guide part 2 can move 1 relative to the pilot pin for can be at 1 unchangeable and do not tear open the condition of guide pin sleeve pipe 3 in the position of pilot pin, thereby remove guide part 2 and change the position of guide pin sleeve pipe 3 for the metatarsal, realize the parallel translation of guide pin sleeve pipe 3, thereby realize that the parallel puts into two guide pins, the guide pin mode of putting into is more nimble, and the doctor can select the parallel to put into or alternately puts into according to the condition by oneself.
In the present embodiment, as shown in fig. 2 and 3, the guiding portion is a through hole 22 provided on the guiding element 2, the positioning pin 1 passes through the through hole 22, and the diameter of the through hole 22 matches with the outer diameter of the needle tail of the positioning pin 1, so that the positioning pin 1 can guide the movement of the guiding element 2; the second fixing component 4 comprises two nuts 41, the two nuts 41 are in threaded connection with the needle tail of the positioning needle 1, and the guide 2 is clamped between the two nuts 41. In other embodiments, the guiding portion may have other structures, such as a groove formed on the guiding member 2; correspondingly, the second fixing element 4 can also have other configurations.
In the present embodiment, two limiting grooves 23 are provided on the guide 2 corresponding to the two nuts 41, the nuts 41 are provided in the limiting grooves 23, and the limiting grooves 23 are used for limiting the radial movement of the nuts 41.
In this embodiment, as shown in figure 3, guide 2 is provided with angular graduations 24 along guide rail 21 for indicating the angular position of needle cannula 3 when rotating needle cannula 3 relative to guide 2.
In the present embodiment, as shown in fig. 4 and 5, the first fixing member 5 includes a fixing sleeve 51, a pressing block 52, a compression spring 53, a guide block 54, and a lock nut 55; the guide rail 21 is formed by arranging an arc-shaped through hole on the guide part 2, the fixed sleeve 51 is provided with a screw 511, and the screw 511 sequentially passes through the pressing block 52, the compression spring 53, the guide block 54 and the arc-shaped through hole on the guide part 2 and is in threaded connection with the locking nut 55.
In this embodiment, the pressing block 52 and the guiding block 54 are respectively provided with an abdicating groove corresponding to the compression spring 53, the pressing block 52 and the guiding block 54 are respectively provided with an anti-slip tooth, the anti-slip tooth 521 on the pressing block 52 is engaged with the anti-slip tooth 541 on the guiding block 54, so as to prevent the pressing block 52 from rotating relative to the guiding block 54.
The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention. It should be understood that any modification, equivalent replacement, or improvement made by those skilled in the art after reading the present specification shall fall within the scope of the present invention.
Claims (7)
1. A hallux valgus surgical guide is characterized in that: comprises a positioning needle, a guide piece, a guide needle sleeve and a first fixing component; the positioning needle and the guide needle sleeve are respectively connected with the guide piece, and the guide needle sleeve is used for guiding the needle insertion and withdrawal of the guide needle; the guide part is provided with a circular arc-shaped guide rail, the guide pin sleeve can slide along a circular arc-shaped route relative to the guide part under the guidance of the guide rail so as to arrange the guide pins in a crossed manner, and the first fixing component is used for fixing the guide pin sleeve on the guide part.
2. The hallux valgus surgical guide of claim 1, wherein: the device also comprises a second fixing component; the positioning needle is connected with the guide piece in a relatively movable manner, the guide piece is provided with a guide part, and the guide part is used for guiding the relative movement between the guide piece and the positioning needle so as to parallelly place the guide needle; the second fixing component is used for fixedly connecting the guide piece with the positioning needle.
3. The hallux valgus surgical guide of claim 2, wherein: the guide part is a through hole arranged on the guide part, the positioning needle penetrates through the through hole, and the diameter of the through hole is matched with the outer diameter of the needle tail of the positioning needle; the fixed subassembly of second includes two nuts, two nuts and the backshank threaded connection of pilot pin, and the guide presss from both sides and locates between two nuts.
4. A hallux valgus surgical guide according to claim 3, wherein: two limiting grooves are formed in the guide piece corresponding to the two nuts, the nuts are arranged in the limiting grooves, and the limiting grooves are used for limiting the radial movement of the nuts.
5. A hallux valgus surgical guide according to claim 1, wherein: the guide piece is provided with angle scales along the guide rail.
6. The hallux valgus surgical guide of claim 1, wherein: the first fixing component comprises a fixing sleeve, a pressing block, a compression spring, a guide block and a locking nut; the guide rail is formed by arranging an arc through hole on the guide piece, the fixed sleeve is provided with a screw, and the screw sequentially penetrates through the pressing block, the compression spring, the guide block and the arc through hole on the guide piece and is in threaded connection with the lock nut.
7. A hallux valgus surgical guide according to claim 6, wherein: all be equipped with the groove of stepping down corresponding to compression spring on briquetting and the guide block, all be equipped with anti-skidding tooth on briquetting and the guide block, anti-skidding tooth on the briquetting meshes with anti-skidding tooth on the guide block mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221695838.3U CN218186919U (en) | 2022-07-04 | 2022-07-04 | Guider for hallux valgus operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221695838.3U CN218186919U (en) | 2022-07-04 | 2022-07-04 | Guider for hallux valgus operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218186919U true CN218186919U (en) | 2023-01-03 |
Family
ID=84647866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221695838.3U Active CN218186919U (en) | 2022-07-04 | 2022-07-04 | Guider for hallux valgus operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218186919U (en) |
-
2022
- 2022-07-04 CN CN202221695838.3U patent/CN218186919U/en active Active
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| GR01 | Patent grant |