CN216148175U - Anti-skid pressurizing fixing device for orthopedic hallux valgus osteotomy - Google Patents
Anti-skid pressurizing fixing device for orthopedic hallux valgus osteotomy Download PDFInfo
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- CN216148175U CN216148175U CN202122233768.1U CN202122233768U CN216148175U CN 216148175 U CN216148175 U CN 216148175U CN 202122233768 U CN202122233768 U CN 202122233768U CN 216148175 U CN216148175 U CN 216148175U
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- osteotomy
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Abstract
The utility model relates to an anti-skid pressurizing and fixing device for hallux valgus osteotomy, which can be used for percutaneous pressurizing and fixing an osteotomy end after a hallux valgus minimally invasive osteotomy is subjected to three-dimensional orthopedic treatment, preventing a fixing needle from sliding, and facilitating the taking out of the osteotomy end after the osteotomy end is healed, can be used for minimally invasive and open hallux valgus orthopedic operation, and belongs to the field of medical instruments. The pressurizing and fixing device comprises a fixing needle, wherein the fixing needle is in a slender needle shape and consists of a tip part, a body part, a thread part and a tail end, the tip part is in a triangular pyramid shape, the body part is a gradually thickened section, the diameter of the body part is increased by 0.2mm compared with that of the tip part, the thread part is provided with threads, the bone cortex is positioned on the near side, the fixing needle is prevented from loosening and slipping, and a breakable groove is arranged between the tail part and the thread part.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an anti-slipping pressurized fixing device for hallux valgus osteotomy correction, which is specially used for fixing hallux valgus minimally invasive osteotomy and distal end osteotomy three-dimensional correction, has small percutaneous pressurized fixing wound and stable and reliable anti-slipping fixation and can also be used for osteotomy operation with limited incision.
Background
Hallux valgus is the most common foot deformity of middle-aged and old women, and brings great inconvenience to the middle-aged and old women who wear shoes and daily life. Various treatment methods for hallux valgus, such as metatarsophalangeal joint fusion, proximal metatarsal stem osteotomy, metatarsal stem osteotomy and distal metatarsal osteotomy, have the advantages of high surgical trauma, long postoperative recovery time, multiple complications and the like. The minimally invasive osteotomy for treating mild and moderate hallux valgus deformity is favored by patients at home and abroad. Due to the fact that a plurality of minimally invasive osteotomies are not fixed or are not fixed firmly, the osteotomies are poor in healing, not connected, the distal metatarsal heads are displaced (upwards or downwards pressed), and the surgical curative effect is seriously affected by the occurrence of deformity recurrence, hallux inversion, metastatic metatarsalgia and the like. The minimally invasive osteotomy operation realizes rapid and accurate pressurization and stable fixation, ensures the curative effect of the operation, and is difficult to achieve by the fixation of a pure thin kirschner wire. The hollow compression screw is used for fixation, so that the price is high, and the hollow compression screw needs to be taken out after a secondary operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a thumb valgus osteotomy orthopedic anti-slip pressurizing fixing device, which solves the problems in the background technology that: how to realize rapid and accurate pressurization and stable fixation and ensure the curative effect of the operation, and the aim is difficult to achieve by the fixation of a pure thin kirschner wire; the hollow compression screw is used for fixation, so that the price is high, and the hollow compression screw needs to be taken out in a secondary operation.
In order to achieve the purpose, the utility model provides the following technical scheme: the anti-slip pressurizing and fixing device for the hallux valgus osteotomy comprises a fixing needle, wherein the fixing needle is in a slender needle shape and sequentially comprises a needle point part, a thickening part, a thread part and a tail end from a needle point direction to a needle tail direction.
Preferably, the diameter of the thickened part is gradually increased by 0.2mm compared with the diameter of the needle tip part.
Preferably, the threaded portion is an equidistant clockwise thread located at the proximal first metatarsal cortical bone.
Preferably, a breakable groove is formed between the tail end and the thread part and used for breaking and removing the tail end after fixing is completed.
Preferably, the needle tip portion has a triangular pyramid shape.
Preferably, the fixing pin is made of a titanium alloy material.
Preferably, the pressing and fixing device further comprises a clamping ring fixedly installed on the tail end and arranged on one side of the breakable groove far away from the needle tip.
Preferably, the hallux valgus osteotomy orthopedic anti-slip compression fixation device further comprises a fixation assembly, the fixation assembly comprising:
the right side of the connecting shell is connected into the output end of the electric drill, and the left side of the connecting shell is provided with an opening and a detachable shell cover;
the T-shaped rod is fixed on the right side of the T-shaped rod and is arranged on the inner wall of the connecting shell, a groove is formed in the left side of the T-shaped rod, and one end, far away from the needle point, of the tail end is clamped in the groove.
Preferably, the hallux valgus osteotomy orthopedic anti-slip compression fixation device, the fixation assembly further comprises:
the top end of the fixed rod is fixed on the inner wall of the top end of the connecting shell, an opening is formed in the bottom end of the fixed rod, and a sliding groove is formed in the fixed rod;
the sliding block is connected in the sliding groove in a sliding mode, the top end of the sliding block is fixedly provided with a pressing rod, the bottom end of the sliding block is fixedly provided with a moving rod, and the moving rod penetrates through the opening to be in contact with the tail end;
the top end of the pressure rod penetrates through the connecting shell and is fixedly connected with a pressing block;
the adjusting spring I is sleeved outside the pressure rod, the top end of the adjusting spring I is fixed on the inner wall of the sliding groove, and the bottom end of the adjusting spring I is fixed on the sliding block;
and the adjusting spring II is sleeved outside the moving rod, the top end of the adjusting spring II is fixed on the sliding block, and the bottom end of the adjusting spring II is fixed on the inner wall of the sliding groove.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a schematic representation of the distal osteotomy end of the metatarsal using the novel fixation (left foot);
FIG. 3 is a schematic structural view of the fixing pin 1 of the present invention screwed into a portion of the T-bar;
FIG. 4 is a schematic structural view of the fixing pin 1 of the present invention fully screwed into the T-bar;
FIG. 5 is an enlarged view of a portion of FIG. 4 according to the present invention.
The components in the figure are:
the device comprises a fixing needle 1, a needle tip 2, a thickening part 3, a thread part 4, a tail end 5, a breakable groove 6, a first metatarsal 7, a second metatarsal 8, a connecting shell 9, a fixing component 10, a shell cover 11, a 12T-shaped rod, a groove 13, a first adjusting spring 14, a second adjusting spring 15, a clamping ring 16, a fixing rod 17, an opening 18, a sliding block 19, a sliding groove 20, a pressing rod 21, a moving rod 22 and a pressing block 23.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
The embodiment of the utility model provides a hallux valgus osteotomy anti-skidding pressurizing fixing device (taking the far-end minimally invasive osteotomy of a left metatarsal head as an example), which comprises a fixing needle 1 as shown in figures 1-2, wherein the fixing needle 1 is in an elongated needle shape, and the fixing needle 1 sequentially comprises a needle tip part 2, a thickening part 3, a thread part 4 and a tail end 5 from a needle tip direction to a needle tail direction.
Optionally, the diameter of the thickened part 3 is gradually increased by 0.2mm compared with the diameter of the needle tip part 2 (the diameter of the tail end of the thickened part 3 is increased by 0.2mm compared with the tail end of the needle tip part 2).
Alternatively, the thread part 4 is an equidistant clockwise thread, and is located at the proximal first metatarsal 7 cortical bone (cortical bone is the bone surface structure relative to the medullary bone, taking the tubular bone structure of femur or humerus as an example, the whole bone is similar to the shape of a water pipe, cortical bone is the pipe wall of the water pipe, and cortical bone is the material in the water pipe cavity.
Optionally, a breakable groove 6 is arranged between the tail end 5 and the threaded portion 4, and is used for breaking off the tail end 5 after fixing is completed.
Optionally, the needle tip portion 2 is triangular pyramid shaped.
Optionally, the fixing pin 1 is made of a titanium alloy material.
The working principle of the technical scheme is as follows: lying a patient on the back on an operating table, enabling the toes to face upwards, then enabling a medical worker to make a 1cm long longitudinal incision on the center of the inner side of the neck of the first metatarsal bone 7, sequentially cutting the metatarsal bones to the periosteum, separating the metatarsal sides and the dorsal side along the periosteum surface, enabling an operator to hold a handle to place an osteotomy guide plate in the incision to the inner side of the metatarsal neck, enabling a support arm of the osteotomy guide plate to be tightly attached to the first metatarsal bone 7 to be inserted into the dorsal side and the metatarsal sides of the neck of the first metatarsal bone 7, adjusting the osteotomy guide plate up and down to determine the position of an osteotomy line, cutting bones through the osteotomy guide plate by a micro saw, prying open the osteotomy end by a micro bone knife to release outer soft tissues, clamping a second metatarsal bone 8 and the first metatarsal bone 7 by a reduction forceps, pushing the head of the first metatarsal bone 7 to the outer side to a required position, performing fluoroscopy by a C-arm, measuring the length of a distal metatarsal bone oblique distal metatarsal bone head 0.5cm at the proximal end of the metatarsal bone cutting line, selecting an anti-slip-off pressurizing fixing needle 1 with a proper length, and inserting an electric drill, the C-arm fluoroscopy pressure needle is positioned satisfactorily, the thread part 4 is positioned in the proximal cortical bone of the first metatarsal 7 (figure 2), the tail end 5 is broken off, the micro oscillating saw removes the protruding bone at the osteotomy end, the skin is sutured, the hallux is kept neutral, and then the pressure dressing is carried out by using alcohol gauze.
The beneficial effects of the above technical scheme are: because the antiskid takes off pressurization fixed needle 1 progressively and progressively grows thickly, plays the effect of pressurization fracture end, screw thread portion 4 is located near-end cortex lycii department, plays the effect that the pressurization antiskid was taken off, fixed needle 1 adopts titanium alloy material, and the operation is easy and simple to handle, and soft tissue damage is little, and the antiskid is taken off the pressurization and is fixed, labour saving and time saving, and postoperative osteotomy end healing is fast, and clinical curative effect is reliable and stable, cuts the concrescence of bone end and gets rid of the fixed needle convenience (through anticlockwise rotation the screw thread portion 4 of fixed needle 1 comes it to take out), need not the secondary operation.
The utility model solves the problems in the prior art that: the rapid and accurate pressurization and stable fixation are realized, the curative effect of the operation is ensured, and the purpose is difficult to achieve by the fixation of a pure thin kirschner wire; the hollow compression screw is used for fixation, so that the price is high, and the hollow compression screw needs to be taken out in a secondary operation.
Example 2
In one embodiment of the present invention, on the basis of embodiment 1 above, as shown in fig. 3 to 4;
the pressing and fixing device also comprises a clamping ring 16 which is fixedly arranged on the tail end 5 and is arranged on one side of the breakable groove 6 far away from the needle tip part 2.
Optionally, the orthopedic anti-skid compression fixation device for hallux valgus osteotomy further comprises a fixation assembly 10, wherein the fixation assembly 10 comprises:
the right side of the connecting shell 9 is connected into an output end (output shaft) of the electric drill, and the left side of the connecting shell 9 is provided with an opening and a detachable shell cover 11;
The working principle of the technical scheme is as follows: when the fixing needle 1 needs to be used, the shell cover 11 is firstly detached, then the tail end 5 of the fixing needle 1 is clamped in the groove 13 in the T-shaped rod 12, then the connecting shell 9 is connected in the electric drill (can be detachably connected, such as clamped), and the electric drill is started at the same time, so that the connecting shell 9 rotates.
The beneficial effects of the above technical scheme are: connect casing 9 through setting up, it will to be convenient connect casing 9 and electric drill and be connected through setting up recess 13 to the one end joint of keeping away from needle point portion 2 with tail end 5 is connected in recess 13, be convenient for fixed needle 1 with be connected being connected of casing 9.
Example 3
In an embodiment of the present invention, on the basis of the above-described embodiment 2, as shown in fig. 5,
the orthopedic antiskid of hallux valgus osteotomy pressurization fixing device still includes:
the top end of the fixing rod 17 is fixed on the inner wall of the top end of the connecting shell 9, an opening 18 is formed in the bottom end of the fixing rod 17, and a sliding groove 20 is formed in the fixing rod 17;
the sliding block 19 is connected in the sliding groove 20 in a sliding mode, the top end of the sliding block 19 is fixedly provided with a pressing rod 21, the bottom end of the sliding block 19 is fixedly provided with a moving rod 22, and the moving rod 22 penetrates through the opening 18 to be in contact with the tail end 5;
the top end of the pressure rod 21 penetrates through the connecting shell 9 and is fixedly connected with a pressing block 23;
the first adjusting spring 14 is sleeved outside the pressure lever 21, the top end of the first adjusting spring 14 is fixed on the inner wall of the sliding groove 20, and the bottom end of the first adjusting spring is fixed on the sliding block 19;
and the second adjusting spring 15 is sleeved outside the moving rod 22, the top end of the second adjusting spring 15 is fixed on the sliding block 19, and the bottom end of the second adjusting spring is fixed on the inner wall of the sliding groove 20.
The working principle of the technical scheme is as follows: when the fixing needle 1 is connected into the T-shaped rod 12, the bottom end of the moving rod 22 abuts against the inclined surface of the clamping ring 16, the moving rod 22 moves upwards under the action of the first adjusting spring 14 and the second adjusting spring 15 until the moving rod 22 passes through the whole clamping ring 16, the moving rod 22 falls back again and corresponds to the breakable groove 6, after the first metatarsal bone 7 is fixed by the fixing needle 1, a medical staff member presses the pressing block 23 downwards, the pressing block 23 drives the sliding block 19 to move downwards in the sliding groove 20 and compresses the first adjusting spring 14 and the second adjusting spring 15, the moving rod 22 is driven to move into the breakable groove 6, and the tail end 5 and the thread part 4 are broken.
The beneficial effects of the above technical scheme are: through setting up movable rod 22 and rand 16, be favorable to preventing that fixed needle 1 from becoming flexible back to the left side shift out connect in the casing 9, through with movable rod 22 and breakable groove 6 correspond, be favorable to separating fixed needle 1 tail end 5 and screw thread portion 4, through the setting of regulating spring one 14 and regulating spring two 15, be favorable to the movable rod 22 is automatic to be retracted after the rupture is accomplished.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (7)
1. The anti-skidding pressurizing fixing device for the hallux valgus osteotomy is characterized by comprising a fixing needle (1), wherein the fixing needle (1) is in a slender needle shape, and the fixing needle (1) sequentially comprises a needle tip part (2), an enlarged part (3), a thread part (4) and a tail end (5) from a needle tip direction to a needle tail direction;
the diameter of the thickening part (3) is gradually increased by 0.2mm compared with the diameter of the needle tip part (2);
the thread part (4) is an equidistant clockwise thread and is positioned at the cortical bone of a first metatarsal bone (7) at the near end.
2. A hallux valgus osteotomy orthopedic anti-slip compression fixation device according to claim 1, characterized in that a breakable groove (6) is provided between the trailing end (5) and the threaded portion (4) for breaking off the trailing end (5) after fixation is completed.
3. A hallux valgus osteotomy orthopedic anti-slip compression fixation device according to claim 1 wherein the pinpoint (2) is triangular pyramid shaped.
4. The hallux valgus osteotomy orthopedic anti-slip compression fixation device according to claim 1, characterized in that the fixation pin (1) is made of a titanium alloy material.
5. A hallux valgus osteotomy orthopedic anti-slip compression fixation device of claim 2,
the pressurizing and fixing device also comprises a clamping ring (16) which is fixedly arranged on the tail end (5) and is arranged on one side of the breakable groove (6) far away from the needle tip part (2).
6. A hallux valgus osteotomy anti-skid compression fixation device according to claim 5 further comprising a fixation assembly (10), the fixation assembly (10) comprising:
the right side of the connecting shell (9) is connected into the output end of the electric drill, and the left side of the connecting shell (9) is provided with an opening and a detachable shell cover (11);
t type pole (12), T type pole (12) right side is fixed connect on casing (9) inner wall, just T type pole (12) left side is equipped with recess (13), the one end joint that pinpoint portion (2) was kept away from in tail end (5) is in recess (13).
7. The hallux valgus osteotomy orthopedic anti-slip compression fixation device of claim 6 wherein the fixation assembly (10) further comprises:
the top end of the fixing rod (17) is fixed on the inner wall of the top end of the connecting shell (9), an opening (18) is formed in the bottom end of the fixing rod (17), and a sliding groove (20) is formed in the fixing rod (17);
the sliding block (19) is connected in the sliding groove (20) in a sliding mode, a pressing rod (21) is fixedly installed at the top end of the sliding block (19), a moving rod (22) is fixedly installed at the bottom end of the sliding block (19), and the moving rod (22) penetrates through the opening (18) to be in contact with the tail end (5);
the top end of the pressure lever (21) penetrates through the connecting shell (9) and is fixedly connected with a pressing block (23);
the first adjusting spring (14) is sleeved outside the pressure lever (21), the top end of the first adjusting spring (14) is fixed on the inner wall of the sliding groove (20), and the bottom end of the first adjusting spring (14) is fixed on the sliding block (19);
and a second adjusting spring (15), wherein the second adjusting spring (15) is sleeved outside the moving rod (22), the top end of the second adjusting spring (15) is fixed on the sliding block (19), and the bottom end of the second adjusting spring is fixed on the inner wall of the sliding groove (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122233768.1U CN216148175U (en) | 2021-09-15 | 2021-09-15 | Anti-skid pressurizing fixing device for orthopedic hallux valgus osteotomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122233768.1U CN216148175U (en) | 2021-09-15 | 2021-09-15 | Anti-skid pressurizing fixing device for orthopedic hallux valgus osteotomy |
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| Publication Number | Publication Date |
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| CN216148175U true CN216148175U (en) | 2022-04-01 |
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| CN202122233768.1U Active CN216148175U (en) | 2021-09-15 | 2021-09-15 | Anti-skid pressurizing fixing device for orthopedic hallux valgus osteotomy |
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| CN (1) | CN216148175U (en) |
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2021
- 2021-09-15 CN CN202122233768.1U patent/CN216148175U/en active Active
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