CN114176712A - Secondary osteotomy device for femoral condyle test - Google Patents
Secondary osteotomy device for femoral condyle test Download PDFInfo
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- CN114176712A CN114176712A CN202111478339.9A CN202111478339A CN114176712A CN 114176712 A CN114176712 A CN 114176712A CN 202111478339 A CN202111478339 A CN 202111478339A CN 114176712 A CN114176712 A CN 114176712A
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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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
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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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/171—Guides or aligning means for drills, mills, pins or wires for 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention discloses a secondary osteotomy device for a femoral trial condyle, which comprises a femoral trial condyle body, wherein a base is arranged in the middle of the femoral trial condyle body, an operation cavity is arranged in the base, a mounting plate is arranged at the top of the operation cavity on the base, two sides of the femoral trial condyle body are respectively provided with a butting plate, two sides of the bottom of the femoral trial condyle body are respectively provided with a cushion block, a fixing component convenient to position is arranged in the operation cavity on the base, two sides of the femoral trial condyle body are respectively provided with a clamping block in a sliding manner, a containing cavity is formed in each clamping block, and the fixing component is connected with an adaptive component with an automatic adjusting function; the beneficial effects are that: according to the invention, the base is additionally arranged on the femur trial condyle body, and the motor is started through the control button, so that the effect that the clamping block abuts against the inner side of the femur is achieved, the femur trial condyle test fixture is suitable for positioning the femurs with different sizes, the automation degree is high, the positioning and installation can be rapidly carried out, the operation time is reduced, the operation risk is further reduced, and the subfissure risk of the osteotomy surface is avoided.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a secondary osteotomy device for femoral condyle test.
Background
The knee joint is an important weight bearing joint of the lower limb, and the structure and function of the knee joint are the most complicated of the joints of the human body. The knee joint of a person is an important joint, has various functions of walking, running, jumping, squatting and the like, and bears the weight of the body of the person. Once the knee joint is diseased, the articular cartilage is destroyed, changing from an originally smooth, as-mirror surface to a rough or even defective surface, further deforming the femoral condyle. The problems of inconvenient walking, limited activity, limping and difficult even easy action are caused. To the extent that the above disease has progressed, the joint has been destroyed, requiring surgery. The artificial knee joint replaces the original damaged joint to restore the walking function
In the knee joint replacement surgery, generally, a femoral surface injury or necrosis part is cut for the first time, after a trial condyle is installed, secondary resection is performed on the femur, auxiliary instruments are needed to position the position of the secondary resection along with the surgery, and in the positioning process, the secondary resection is generally operated in a splicing installation mode, so that on one hand, the surgery time is prolonged, the surgery risk is increased, and on the other hand, the subfissure risk of a resection surface is increased in the splicing process.
Disclosure of Invention
The invention aims to provide a secondary osteotomy device for a femoral trial condyle, which is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a thighbone examination condyle secondary cuts bone device, includes thighbone examination condyle body, the middle part of thighbone examination condyle body is provided with the base, the inside of base is provided with the operation chamber, the top that lies in the operation chamber on the base is provided with the mounting panel, the both sides of thighbone examination condyle body all are provided with the support board, the bottom both sides of thighbone examination condyle body all are provided with the cushion, it is provided with the fixed subassembly of the location of being convenient for to lie in the operation intracavity on the base, the both sides of thighbone examination condyle body all slide and are provided with the clamp splice, seted up on the clamp splice and held the chamber, the opening part that lies in holding the chamber on the clamp splice has the fixed plate through the fix with screw, the adaptation subassembly that has the automatically regulated function is connected on the fixed subassembly.
Preferably, the front end of the base is provided with an inner filler block, and the inner filler block is in an inner eight-arc structure similar to the end surface of the inner side of the femur.
Preferably, fixed subassembly includes the transmission worm, the transmission worm passes through the bearing and rotates the connection on the base, the one end of transmission worm runs through the base and is provided with the motor, fixed connection between the output of motor and the transmission worm, be connected with the screw rod through the bearing rotation on the base.
Preferably, a connecting rod is arranged between the two screw rods, the thread turning directions of the two screw rods are opposite, a worm wheel is fixedly sleeved on the connecting rod, and the worm wheel and the transmission worm are meshed with each other.
Preferably, the two screw rods are sleeved with moving blocks, the moving blocks are respectively in threaded connection with the two screw rods, the two screw rods are internally and externally, a traction rod is arranged on one side of each moving block, and one end of each traction rod penetrates through the base and is welded with the clamping block.
Preferably, the adaptation subassembly includes the ejector pin, the ejector pin slides and pegs graft on the clamp splice, the one end of ejector pin is provided with the briquetting, the both sides that hold the chamber all are provided with the supporting shoe, the top of clamp splice is provided with the second gasbag.
Preferably, a first air bag is arranged between the pressing block and the accommodating cavity, a return spring is arranged between the pressing block and the supporting block, and a connecting pipe is arranged between the first air bag and the second air bag.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the femur trial condyle positioning device, the base is additionally arranged on the femur trial condyle body, the motor is started through the control button, the output end of the motor rotates to drive the transmission worm to rotate, the worm wheel and the connecting rod also rotate along with the transmission worm, at the moment, the two screw rods rotate to drive the two moving blocks to be away from each other along the axial direction of the screw rods, the clamping blocks abut against the inner sides of the femur, the femur trial condyle positioning device is suitable for positioning the femurs with different sizes, the automation degree is high, the femur trial condyle positioning device can be quickly positioned and installed, the operation time is shortened, the operation risk is further reduced, and the risk of subfissure of the osteotomy surface is avoided;
2. according to the invention, the adapter assembly is additionally arranged on the clamping block, when the clamping block abuts against the femur and the ejector rod is extruded by the femur, the ejector rod moves towards the direction of the accommodating cavity, the pressing block extrudes the first air bag, the first air bag is limited by the accommodating cavity, the gas of the first air bag is compressed into the second air bag through the connecting pipe, and then the second air bag expands to be attached to the femur, so that the irregular arc structure of the femur is adapted, and the positioning and fixing stability of the femur is ensured;
3. according to the invention, the inner lining block and the cushion block are additionally arranged on the femur test condyle body, the femur is inserted into the femur test condyle body in a sliding mode, the inner lining block is attached to the inner side of the femur, the cushion block supports and limits the bottom of the femur, and the left side and the right side of the femur are protected by the support plates, so that the femur is prevented from moving out of the femur test condyle body.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a base of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 2 at A in accordance with the present invention;
FIG. 4 is a partial cross-sectional view of a clamp block of the present invention;
fig. 5 is an enlarged schematic view of the structure of fig. 4 at B.
In the figure: a femur trial condyle body 1; a base 2; an operating chamber 21; a mounting plate 22; an inner pad 3; a resisting plate 4; a cushion block 5; a drive worm 6; a motor 61; a screw 62; a connecting rod 63; a worm gear 64; a moving block 65; a pull rod 66; a clamping block 7; the accommodation chamber 71; a fixed plate 72; a top rod 8; a briquette 81; a support block 82; a first air bladder 83; a return spring 84; a second air bag 85; a connecting tube 86.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a secondary osteotomy device for a femoral condyle test comprises a femoral condyle test body 1, an arc-shaped shell matched with a femur of the femoral condyle test body 1, a base 2 fixedly connected to the middle of the femoral condyle test body 1, the base 2 used for installing a fixing component in advance and saving operation time, an operation cavity 21 arranged in the base 2, a mounting plate 22 fixedly installed on the top of the operation cavity 21 on the base 2, the mounting plate 22 fixed on the base 2 through screws for facilitating the installation of the fixing component, an inner lining block 3 fixedly connected to the front end of the base 2, the inner lining block 3 having an inner 'eight' arc-shaped structure similar to the inner side surface of the femur, the inner lining block 3 used for positioning the femur and facilitating the sliding insertion of the femur on the femoral condyle test body 1, abutting plates 4 arranged on both sides of the femoral condyle test body 1, the abutting plates 4 fixed on the side surface of the femoral condyle test body 1 through screws, and cushion blocks 5 arranged on both sides of the bottom of the femoral condyle test body 1, cushion 5 is used for supporting thighbone, and the thighbone of being convenient for location is pegged graft the thighbone slip on thighbone examination condyle body 1, and lining block 3 and the inboard laminating of thighbone this moment, cushion 5 support spacingly to the bottom of thighbone, and support board 4 protects the left and right sides of thighbone, prevents that the thighbone from shifting out outside thighbone examination condyle body 1.
A fixing component convenient for positioning is arranged in the operation cavity 21 on the base 2, the fixing component comprises a transmission worm 6, the transmission worm 6 is rotatably connected on the base 2 through a bearing, one end of the transmission worm 6 penetrates through the base 2 and is fixedly provided with a motor 61, the output end of the motor 61 is fixedly connected with the transmission worm 6, the motor 61 provides kinetic energy for the transmission worm 6, meanwhile, a microprocessor is arranged on the motor 61, the starting of the motor 61 is controlled through a control button, when the control button motor 61 is pressed to stop, the whole fixing component is fixed at a certain position and is not repeated in detail in the prior art, a screw 62 is rotatably connected on the base 2 through a bearing, a connecting rod 63 is welded between the two screw 62, a worm wheel 64 is fixedly sleeved on the connecting rod 63, the worm wheel 64 is meshed with the transmission worm 6, and moving blocks 65 are sleeved on the two screw 62, the moving block 65 is respectively connected with the inner thread and the outer thread between the two screw rods 62, the thread turning directions of the two screw rods 62 are opposite, the two moving blocks 65 are used for moving away from or close to each other, the two moving blocks 65 can move simultaneously, the fixing time is saved, a traction rod 66 is fixedly installed on one side of the moving block 65, the arrangement of the traction rod 66 prevents the moving block 65 from rotating along with the rotation of the screw rods 62, the effect of guiding the moving blocks 65 to move in a limiting manner is achieved, the clamping blocks 7 are connected to the two sides of the femoral condyle body 1 in a sliding manner, one end of the traction rod 66 penetrates through the base 2 and is welded with the clamping blocks 7, the clamping blocks 7 are of circular arc block structures, the butting to the femur is facilitated, the motor 61 is started through a control button, the rotation of the output end of the motor 61 drives the transmission worm 6 to rotate, and the rotation of the transmission worm 6 enables the worm wheel 64 and the connecting rod 63 to rotate along with the rotation, because the screw thread turning directions of the two screw rods 62 are opposite, the two moving blocks 65 are driven by the rotation of the two screw rods 62 to be away from each other along the axial direction of the screw rods 62, and the clamping blocks 7 abut against the inner sides of the thighbones, so that the positioning device is suitable for positioning the thighbones with different sizes.
The clamping block 7 is provided with a containing cavity 71, a fixing plate 72 is fixed at an opening of the containing cavity 71 on the clamping block 7 through a screw, an adaptive assembly with an automatic adjusting function is connected onto the fixing assembly, the fixing plate 72 is convenient to install the adaptive assembly, the adaptive assembly comprises a mandril 8, the mandril 8 is inserted on the clamping block 7 in a sliding mode, one end of the mandril 8 penetrates through the fixing plate 72 and is welded with a pressing block 81, supporting blocks 82 are welded on two sides of the containing cavity 71, a first air bag 83 is fixedly connected between the pressing block 81 and the containing cavity 71, the first air bag 83 is filled with gas, a return spring 84 is fixedly connected between the pressing block 81 and the supporting blocks 82, a second air bag 85 is fixedly installed at the top of the clamping block 7, a connecting pipe 86 is communicated between the first air bag 83 and the second air bag 85, when the mandril 8 is extruded under the action of external force, the mandril 8 moves towards the containing cavity 71, and then the pressing block 81 extrudes the first air bag 83, at this moment, the reset spring 84 is compressed under the action of the extrusion force between the pressing block 81 and the supporting block 82, the first air bag 83 is limited by the accommodating cavity 71, the air of the first air bag 83 is compressed into the second air bag 85 through the connecting pipe 86, and the second air bag 85 is positioned outside the clamping block 7, so that the second air bag 85 is expanded and attached to the femur, the irregular arc-shaped structure of the femur is adapted, and the stability of positioning and fixing is guaranteed.
The working principle is as follows: in actual work, a femur is inserted on the femur trial condyle body 1 in a sliding manner, the inner lining block 3 is attached to the inner side of the femur, the cushion block 5 supports and limits the bottom of the femur, the left side and the right side of the femur are protected by the abutting plates 4 to prevent the femur from moving out of the femur trial condyle body 1, the motor 61 is started through the control buttons, the rotation of the output end of the motor 61 drives the transmission worm 6 to rotate, the rotation of the transmission worm 6 enables the worm wheel 64 and the connecting rod 63 to rotate along with the rotation, because the thread turning directions of the two screw rods 62 are opposite, the rotation of the two screw rods 62 simultaneously drives the two moving blocks 65 to be away from each other along the axial direction of the screw rods 62, the clamping block 7 abuts against the inner side of the femur, the positioning device is suitable for positioning of femurs with different sizes, when the clamping block 7 abuts against the femur and the ejector rod 8 is under the action of femur extrusion, the ejector rod 8 moves towards the direction of the accommodating cavity 71, and the pressing block 81 extrudes the first air bag 83, at this moment, the reset spring 84 is compressed under the action of the extrusion force between the pressing block 81 and the supporting block 82, the first air bag 83 is limited by the accommodating cavity 71, the air of the first air bag 83 is compressed into the second air bag 85 through the connecting pipe 86, and the second air bag 85 is positioned outside the clamping block 7, so that the second air bag 85 is expanded and attached to the femur, the irregular arc-shaped structure of the femur is adapted, and the stability of positioning and fixing is guaranteed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a thighbone examination condyle secondary cuts bone device, includes thighbone examination condyle body (1), its characterized in that: the middle part of thighbone examination condyle body (1) is provided with base (2), the inside of base (2) is provided with operation chamber (21), the top that lies in operation chamber (21) on base (2) is provided with mounting panel (22), the both sides of thighbone examination condyle body (1) all are provided with to board (4), the bottom both sides of thighbone examination condyle body (1) all are provided with cushion (5), lie in the fixed subassembly that is provided with the location of being convenient for on base (2) in operation chamber (2), the both sides of thighbone examination condyle body (1) are all slided and are provided with clamp splice (7), seted up on clamp splice (7) and held chamber (71), the opening part that lies in holding chamber (71) on clamp splice (7) has fixed plate (72) through the fix with screw, the adaptation subassembly that the last connection of fixed subassembly has the automatically regulated function.
2. The device of claim 1, wherein: an inner filler block (3) is arranged at the front end of the base (2), and the inner filler block (3) is of an inner eight-arc structure similar to the end surface of the inner side of the femur.
3. The device of claim 1, wherein: the fixed subassembly includes drive worm (6), drive worm (6) rotate through the bearing and connect on base (2), the one end of drive worm (6) is run through base (2) and is provided with motor (61), fixed connection between the output of motor (61) and drive worm (6), be connected with screw rod (62) through the bearing rotation on base (2).
4. The device of claim 3, wherein: two be provided with connecting rod (63) between screw rod (62), the screw thread of two screw rods (62) is turned to opposite, the fixed cover is connected with worm wheel (64) on connecting rod (63), intermeshing between worm wheel (64) and transmission worm (6).
5. The device of claim 3, wherein: moving blocks (65) are sleeved on the two screw rods (62), the moving blocks (65) are respectively in threaded connection with the two screw rods (62) in an internal and external mode, a traction rod (66) is arranged on one side of each moving block (65), and one end of each traction rod (66) penetrates through the base (2) and is welded with the clamping block (7).
6. The device of claim 1, wherein: the adaptation subassembly includes ejector pin (8), ejector pin (8) slide and peg graft on clamp splice (7), the one end of ejector pin (8) is provided with briquetting (81), the both sides that hold chamber (71) all are provided with supporting shoe (82), the top of clamp splice (7) is provided with second gasbag (85).
7. The device of claim 6, wherein: a first air bag (83) is arranged between the pressing block (81) and the accommodating cavity (71), a return spring (84) is arranged between the pressing block (81) and the supporting block (82), and a connecting pipe (86) is arranged between the first air bag (83) and the second air bag (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478339.9A CN114176712B (en) | 2021-12-06 | 2021-12-06 | Femur trial condyle secondary osteotomy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478339.9A CN114176712B (en) | 2021-12-06 | 2021-12-06 | Femur trial condyle secondary osteotomy device |
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| CN114176712A true CN114176712A (en) | 2022-03-15 |
| CN114176712B CN114176712B (en) | 2023-07-07 |
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| CN202111478339.9A Active CN114176712B (en) | 2021-12-06 | 2021-12-06 | Femur trial condyle secondary osteotomy device |
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| Publication number | Publication date |
|---|---|
| CN114176712B (en) | 2023-07-07 |
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