CN112155710B - Nail taking device for orthopedics department - Google Patents
Nail taking device for orthopedics department Download PDFInfo
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- CN112155710B CN112155710B CN202010983201.3A CN202010983201A CN112155710B CN 112155710 B CN112155710 B CN 112155710B CN 202010983201 A CN202010983201 A CN 202010983201A CN 112155710 B CN112155710 B CN 112155710B
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
- A61B17/8886—Screwdrivers, spanners or wrenches holding the screw head
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Abstract
The invention provides an orthopedic nail taking device applied to the field of orthopedics, which comprises: the nail pulling device comprises a shell, a slotting module, a nail pulling module and a driving motor; the device is provided with the slotting module, the scraper mounting disc is buckled on the broken nail, and then the driving motor is connected with the first speed reducing mechanism through the clutch connecting mechanism to drive the rotary scraper to rotate around the outer surface of the broken nail, so that a groove for buckling the clamping jaw assembly can be scraped on the outer surface of the broken nail; the nail pulling module is arranged to fix the clamping jaw and the groove scraped by the slotting module, so that broken nails are slowly lifted and pulled out, and the operation is simple; the clutch connecting mechanism is arranged, so that the broken nail can be connected with the driving motor to receive power when the broken nail is pressed against the scraper mounting disc, and the damage to a human body caused by mechanical misrotation is prevented; set up two reduction gears and can adjust the translation rate of scraper and fixed cover according to practical application, this device can provide power to two modules through setting up a driving motor moreover, simple structure, and the application is wide.
Description
Technical Field
The invention relates to the field of orthopedics, in particular to a nail taking device for orthopedics.
Background
In the orthopedic surgery, the internal fixation of the screw combined with the steel plate and the hollow nail is a common method, particularly, the half-thread cancellous bone screw and the half-thread hollow nail are more widely applied, and the advantages of the method are that the biomechanics principle is met, the broken end of the fracture can be effectively pressurized, the stable state and the strength of rehabilitation training can be met after the fracture is fixed, and the early functional exercise is combined to promote the fracture healing. However, although the process of taking out the hollow nail is relatively simple and quite simple, the hollow nail cannot be rotated frequently, part of bone nails are tightly combined with bone, the bone nails are broken and damaged, and a forcep extractor has to be used, so that the operation has high destructiveness to the bone, and unnecessary pain is caused to a patient.
The mechanism is communicated and fed back with orthopedic medical staff of various hospitals, and the structures of the existing fixing nail and the existing nail taking device for orthopedics are mainly disclosed as US20040082959A1, US07144399B2, US06923648B1 and CN107693106B, wherein the nail taking device disclosed as CN107693106B is particularly representative, and the nail taking device is mainly characterized in that a punching mechanism and a nail taking head are arranged, a thread drill is arranged on the punching mechanism, a thread drill can drill a thread hole in the hollow broken nail, the nail taking head is in threaded connection with the thread hole, the broken nail can be taken out by rotating a cross rod, the structure is reasonable, the operation is convenient, compared with the traditional mode of engraving external threads on the surface of the broken nail, the bone damage is smaller, and the pain of a patient is relieved; can effectually prescribe in the top of punching the mechanism with the connecting rod position through setting up first installation side lever and second installation side lever, be convenient for carry on the dop of connecting rod bottom and punch the draw-in groove in the mechanism and be connected, punch the mechanism simultaneously and prescribe a limit to the connecting rod position through first installation side lever when boring the hole, need not to hold by hand, the operation degree of difficulty has been reduced, but the mounting means of this kind of structure is more complicated, and need say earlier the mount and fix and aim at, and it often more difficult the matching with little disconnected nail to get the pin fin, so regulation relapse, it is more loaded down with trivial details to operate, so develop an easy operation and can take out the main development direction of disconnected nail device for present orthopedics fast.
Disclosure of Invention
The invention aims to provide an orthopedic broken nail taking-out device aiming at the defects of the existing orthopedic broken nail taking-out grabbing device.
In order to overcome the defects of the prior art, the invention adopts the following technical scheme:
an orthopedic nail removal device comprising: a shell body, a plurality of first connecting rods and a plurality of second connecting rods,
the slotting module is used for slotting on the nail to facilitate the connection and fixation of the nail pulling module and the nail;
the nail pulling module is used for being connected with the slotted buckle of the nail and pulling out the nail after connection;
and the driving motor is respectively connected with the slotting module and the topping module and is used for providing power for the slotting module and the nail pulling module.
Furthermore, the driving motor is a double-head shaft motor, one shaft of the driving motor is connected with the slotting module, and the other shaft of the driving motor is connected with the nail pulling module.
Further, the slotting module comprises a clutch connecting mechanism, a first speed reducing mechanism and a scraper mechanism, the clutch connecting mechanism comprises an inner insection disc, a first return spring, a bevel gear, an installation limiting disc and a first rotating shaft, the inner insection disc is arranged on a rotating shaft close to the front side of the driving motor, one end of the first rotating shaft far away from the driving motor is connected with the first speed reducing mechanism, one end of the first rotating shaft, which is close to the driving motor, is provided with a bevel gear, the installation limiting disc is arranged on one side of the first speed reducing mechanism, which is close to the driving motor, and is sleeved on the peripheries of the first rotating shaft and the bevel gear, one end of the first return spring is abutted with the installation limiting disc, the other end of the first return spring is abutted with the driving motor, the bevel gear can be in threaded connection with the internal threaded disc, and the bevel gear is separated from the internal threaded disc by a first return spring.
Further, the scraper mechanism comprises a second rotating shaft, a scraper mounting disc and a scraper assembly, one end of the second rotating shaft is connected with the first speed reducing mechanism, the other end of the second rotating shaft is connected with the scraper mounting disc, and the scraper assembly is arranged on the scraper mounting disc;
the scraper component comprises a rotary scraper and a mounting frame, the mounting frame is rotatably installed on the scraper mounting disc, the rotary scraper is rotatably arranged on the mounting frame, coil springs which are abutted to the mounting frame and the scraper mounting disc respectively are arranged on the mounting frame, and the rotary scraper and the mounting frame are all provided with multiple groups and are respectively arranged on the scraper mounting disc in a surrounding manner.
Further, the nail pulling module comprises a second speed reducing mechanism, a coupler, a screw rod, a second reset spring, a limiting sleeve, a third reset spring and a fixing sleeve, one end of the second speed reducing mechanism is connected with the driving motor, the other end of the second speed reducing mechanism is connected with the coupler, the other end of the coupler is connected with the screw rod, the limiting sleeve is arranged at the periphery of the coupler, the second reset spring is arranged between the limiting sleeve and the second speed reducing mechanism, one end of the second reset spring faces the abutting part of the limiting sleeve, the other end of the second reset spring abuts against the second speed reducing mechanism, the fixing sleeve is arranged on the screw rod in a sliding manner, the third reset spring is arranged between the limiting sleeve and the fixing sleeve, one end of the third reset spring abuts against the limiting sleeve, the other end of the third reset spring abuts against the fixing sleeve, and the fixing sleeve is arranged on the screw rod in a sliding manner, the fixed sleeve is provided with a clamping jaw structure.
Furthermore, the periphery of fixed cover is provided with spacing lug, the casing with the position that spacing lug matches is provided with spacing spout, spacing lug is in slide setting in the spacing spout.
The beneficial effects obtained by the invention are as follows:
the grooving module is arranged, and a groove for buckling the clamping jaw assembly can be scraped on the outer surface of the broken nail by buckling the scraper mounting disc on the broken nail and then connecting the driving motor with the first speed reducing mechanism through the clutch connecting mechanism to drive the rotary scraper to rotate around the outer surface of the broken nail; the nail pulling module is arranged to fix the clamping jaw and the groove scraped by the slotting module, so that broken nails are slowly lifted and pulled out, and the operation is simple; the clutch connecting mechanism is arranged, so that the broken nail can be connected with the driving motor to receive power when the broken nail is pressed against the scraper mounting disc, and the damage to a human body caused by mechanical misrotation is prevented; set up two reduction gears and can adjust the translation rate of scraper and fixed cover according to practical application, this device can provide power, simple structure, so this nail device application is wide to two modules through setting up a driving motor moreover.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a schematic cross-sectional structure of the present invention.
Fig. 3 is a schematic structural view of the doctor mechanism of the present invention.
Fig. 4 is a schematic structural view of a second reduction mechanism of the present invention.
Fig. 5 is a schematic structural diagram of the slotting mechanism of the present invention.
In the figure: the automatic nail pulling device comprises a shell 1, a slotting module 2, a clutch connecting mechanism 21, an internal thread disc 211, a first return spring 212, a bevel gear 213, an installation limiting disc 214, a first rotating shaft 215, a first speed reducing mechanism 22, a first shell 221, a first rear cover 222, a first bearing 223, a first installation turntable 224, a first pinion set 225, a first gear turntable 226, a second pinion set 227, a second central gear 228, a scraper mechanism 23, a second rotating shaft 231, a scraper installation disc 232, a scraper component 233, a rotary scraper 2331, an installation frame 2332, a nail pulling module 3, a second speed reducing mechanism 31, a second shell 311, a second rear cover 312, a second bearing 313, a second installation turntable 314, a third pinion set 315, a second gear turntable 316, a fourth pinion set 317, a third gear turntable 318, a fifth pinion set 319, a fourth central gear 310, a coupler 32, a screw rod 33, a second return spring 34, a second speed reducing mechanism 227, a second shell 310, a second central gear and a fourth central gear 310, Stop collar 35, third reset spring 36, fixed cover 37, clamping jaw subassembly 38, driving motor 4.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or assembly must have a specific orientation, be constructed and operated in a specific orientation, and the terms such as "front", "rear", etc. are described based on the fact that one end near the slotted module is a front end and one end near the nail pulling module is a rear end, so the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the first embodiment, as shown in fig. 1 to 4:
an orthopedic nail removal device comprising: a housing 1;
the slotting module 2 is used for slotting on a nail to facilitate the connection and fixation of the nail pulling module 3 and the nail;
the nail pulling module 3 is used for being connected with the slotted buckle of the nail and pulling out the nail after connection;
the driving motor 4 is respectively connected with the slotting module 2 and the topping module and is used for providing power for the slotting module 2 and the nailing module 3;
the driving motor 4 is a double-end shaft motor, one shaft of the driving motor 4 is connected with the slotting module 2, and the other shaft is connected with the nail pulling module 3;
the slotting module 2 comprises a clutch connecting mechanism 21, a first reducing mechanism 22 and a scraper mechanism 23, the clutch connecting mechanism 21 comprises an inner insection disc 211, a first reset spring 212, a bevel gear 213, an installation limiting disc 214 and a first rotating shaft 215, the inner insection disc 211 is installed on a rotating shaft close to the front side of the driving motor 4, one end of the first rotating shaft 215, far away from the driving motor 4, is connected with the first reducing mechanism 22, the bevel gear 213 is installed at one end of the first rotating shaft 215, close to the driving motor 4, the installation limiting disc 214 is installed at one side of the first reducing mechanism 22, close to the driving motor 4, and is sleeved on the peripheries of the first rotating shaft 215 and the bevel gear 213, one end of the first reset spring 212 is abutted against the installation limiting disc 214, the other end is abutted against the driving motor 4, and the bevel gear 213 can be in threaded connection with the inner insection disc 211, a first return spring 212 separates the bevel gear 213 from the internal toothed disc 211;
the scraper mechanism 23 comprises a second rotating shaft 231, a scraper mounting disc 232 and a scraper assembly 233, one end of the second rotating shaft 231 is connected with the first speed reducing mechanism 22, the other end of the second rotating shaft is connected with the scraper mounting disc 232, and the scraper assembly 233 is arranged on the scraper mounting disc 232;
the scraper assembly 233 comprises a rotary scraper 2331 and a mounting frame 2332, the mounting frame 2332 is rotatably mounted on the scraper mounting plate 232, the rotary scraper 2331 is rotatably arranged on the mounting frame 2332, the mounting frame 2332 is provided with coil springs which are respectively abutted against the mounting frame 2332 and the scraper mounting plate 232, and the rotary scraper 2331 and the mounting frame 2332 are respectively provided with a plurality of groups which are respectively arranged on the scraper mounting plate 232 in a surrounding manner;
the nail pulling module 3 comprises a second speed reducing mechanism 31, a coupler 32, a screw rod 33, a second reset spring 34, a limit sleeve 35, a third reset spring 36 and a fixed sleeve 37, one end of the second speed reducing mechanism 31 is connected with the driving motor 4, the other end of the second speed reducing mechanism is connected with the coupler 32, the other end of the coupler 32 is connected with the screw rod 33, the limit sleeve 35 is arranged at the periphery of the coupler 32, the second reset spring 34 is arranged between the limit sleeve 35 and the second speed reducing mechanism 31, one end of the second reset spring 34 is opposite to the limit sleeve 35, the other end of the second reset spring is opposite to the second speed reducing mechanism 31, the fixed sleeve 37 is slidably arranged on the screw rod 33, the third reset spring 36 is arranged between the limit sleeve 35 and the fixed sleeve 37, one end of the third reset spring 36 is opposite to the limit sleeve 35, the other end of the screw rod is abutted to the fixed sleeve 37, the fixed sleeve 37 is arranged on the screw rod 33 in a sliding manner, and the fixed sleeve 37 is provided with a clamping jaw structure;
the periphery of fixed cover 37 is provided with spacing lug, casing 1 with the position that spacing lug matches is provided with spacing spout, spacing lug is in slide setting in the spacing spout.
Second embodiment, the present embodiment is further described in the above embodiments, and it should be understood that the present embodiment includes all the technical features described above and is further described in detail:
an orthopedic nail removal device comprising:
the shell 1 is also sequentially arranged in the shell 1 from front to back;
the slotting module 2 is used for slotting on the nail to facilitate the nail pulling module 3 to be connected and fixed with the nail,
the nail pulling module 3 is used for being connected with the slotted buckle of the nail and pulling out the nail after connection;
the driving motor 4 is respectively connected with the slotting module 2 and the topping module and is used for providing power for the slotting module 2 and the nailing module 3;
the shell 1 comprises a scraper mounting chamber, a first speed reducing mechanism 22 mounting chamber, a first return spring 212 mounting chamber, a driving motor 4 mounting chamber, a second speed reducing mechanism 31 mounting chamber, a second return spring 34 mounting chamber, a third return spring 36 mounting chamber and a fixing sleeve 37 mounting chamber which are sequentially arranged from front to back and are communicated with each other;
the driving motor 4 is arranged in the mounting chamber of the driving motor 4, the driving motor 4 is a double-end shaft motor, one shaft of the driving motor 4 is connected with the slotting module 2, and the other shaft is connected with the nail pulling module 3;
the slotting module 2 comprises a clutch connecting mechanism 21, a first reducing mechanism 22 and a scraper mechanism 23, the clutch connecting mechanism 21 is arranged in a first reset spring 212 installation chamber, the clutch connecting mechanism 21 comprises an inner insection disc 211, a first reset spring 212, a bevel gear 213, an installation limiting disc 214 and a first rotating shaft 215, the inner insection disc 211 is installed on a rotating shaft close to the front side of the driving motor 4, one end of the first rotating shaft 215 far away from the driving motor 4 is connected with the first reducing mechanism 22, the bevel gear 213 is installed at one end of the first rotating shaft 215 close to the driving motor 4, the installation limiting disc 214 is installed at one side of the first reducing mechanism 22 close to the driving motor 4 and sleeved on the peripheries of the first rotating shaft 215 and the bevel gear 213, one end of the first reset spring 212 is abutted to the installation limiting disc 214, the other end of the bevel gear 213 is abutted against the driving motor 4, the bevel gear 213 can be in threaded connection with the internal threaded disc 211, and the bevel gear 213 is separated from the internal threaded disc 211 by a first return spring 212;
the scraper mechanism 23 comprises a second rotating shaft 231, a scraper mounting disc 232 and a scraper assembly 233, one end of the second rotating shaft 231 is connected with the first speed reducing mechanism 22, the other end of the second rotating shaft is connected with the scraper mounting disc 232, and the scraper assembly 233 is arranged on the scraper mounting disc 232;
the scraper assembly 233 comprises a rotary scraper 2331 and a mounting frame 2332, the mounting frame 2332 is rotatably mounted on the scraper mounting plate 232, the rotary scraper 2331 is rotatably arranged on the mounting frame 2332, the mounting frame 2332 is provided with coil springs which are respectively abutted against the mounting frame 2332 and the scraper mounting plate 232, and the rotary scraper 2331 and the mounting frame 2332 are respectively provided with a plurality of groups which are respectively arranged on the scraper mounting plate 232 in a surrounding manner;
the nail pulling module 3 comprises a second speed reducing mechanism 31, a coupler 32, a screw rod 33, a second reset spring 34, a limiting sleeve 35, a third reset spring 36, a fixed sleeve 37 and a clamping jaw assembly 38, one end of the second speed reducing mechanism 31 is connected with the driving motor 4, the other end of the second speed reducing mechanism is connected with the coupler 32, the coupler 32 is further connected with the screw rod 33, the limiting sleeve 35 is arranged at the periphery of the coupler 32, the second reset spring 34 is arranged between the limiting sleeve 35 and the second speed reducing mechanism 31, one end of the second reset spring 34 is opposite to the limiting sleeve 35, the other end of the second reset spring is opposite to the second speed reducing mechanism 31, the fixed sleeve 37 is slidably arranged on the screw rod 33, the third reset spring 36 is arranged between the limiting sleeve 35 and the fixed sleeve 37, one end of the third reset spring 36 is opposite to the limiting sleeve 35, the other end of the clamping jaw is abutted to the fixed sleeve 37, the fixed sleeve 37 is slidably arranged on the screw rod 33, the clamping jaw assembly 38 is arranged at the outer end of the fixed sleeve 37, and the clamping jaw structure is used for being clamped with a scraping groove scraped by the rotary scraper 2331;
the lateral surface of fixed cover 37 is provided with spacing lug, casing 1 with the position that spacing lug corresponds is provided with spacing spout, spacing lug slides and sets up spacing spout.
Third embodiment, the present embodiment is further described in the above embodiments, and it should be understood that the present embodiment includes all the technical features described above and is further described in detail: further as shown in connection with fig. 5:
an orthopedic nail removal device comprising:
the shell 1 is also sequentially arranged in the shell 1 from front to back;
the slotting module 2 is used for slotting on the nail to facilitate the nail pulling module 3 to be connected and fixed with the nail,
the nail pulling module 3 is used for being connected with the slotted buckle of the nail and pulling out the nail after connection;
the driving motor 4 is respectively connected with the slotting module 2 and the topping module and is used for providing power for the slotting module 2 and the nailing module 3;
the shell 1 comprises a scraper mounting chamber, a first speed reducing mechanism mounting chamber, a first reset spring mounting chamber, a driving motor mounting chamber, a second speed reducing mechanism mounting chamber, a second reset spring mounting chamber, a third reset spring mounting chamber and a fixed sleeve mounting chamber which are sequentially arranged from front to back and are communicated with each other;
the shell 1 is provided with a control key and a key mounting groove, the control key is arranged on the key mounting groove, and the control key is electrically connected with the driving motor 4;
the driving motor 4 is arranged in the mounting chamber of the driving motor 4, the driving motor 4 is a double-end shaft motor, one shaft of the driving motor 4 is connected with the slotting module 2, and the other shaft is connected with the nail pulling module 3;
the slotting module 2 comprises a clutch connecting mechanism 21, a first speed reducing mechanism 22 and a scraper mechanism 23, the clutch connecting mechanism 21 is arranged in a first return spring 212 installation chamber, the first speed reducing mechanism 22 comprises a first machine shell 221, a first rear cover 222 arranged at the rear part of the first machine shell 221, a first bearing 223, a first installation turntable 224, a first pinion set 225, a first gear turntable 226, a second pinion set 227 and a second central gear 228 which are sequentially arranged in the first machine shell 221 from front to back, a first installation shaft which is annularly arranged is arranged on the rear side surface of the first installation turntable 224, the first pinion set 225 and the second pinion have the same structure and respectively comprise a plurality of gears with the same shape, the gears of the first pinion set 225 are respectively and rotatably arranged on the first installation shaft, a first central gear is arranged at the center of one side of the first gear turntable 226, a plurality of second mounting shafts are arranged on the other side in an annular manner, gears of the first pinion set 225 are all meshed with a first central gear of the first gear turntable 226, gears of the second pinion set 227 are respectively and rotatably arranged on second mounting shafts of the first gear turntable 226, gears of the second pinion set 227 are meshed with a second central gear 228 arranged in the center, the inner surface of the first machine shell 221 is provided with insections, and gears of the first pinion set 225 and gears of the second pinion set 227 are all meshed with the insections of the first machine shell 221;
the clutch connecting mechanism 21 comprises an internal fluted disc 211, a first return spring 212, a bevel gear 213, an installation limiting disc 214 and a first rotating shaft 215, wherein the internal fluted disc 211 is installed on the rotating shaft close to the front side of the driving motor 4, and one end of the first rotating shaft 215 penetrates through a first rear cover 222 of the first speed reducing mechanism 22 and is connected with a second central gear 228; the other end of the first return spring is connected with the bevel gear 213, the mounting limit disc 214 is connected with the first rear cover 222 of the first speed reducing mechanism 22, the mounting limit disc 214 is sleeved on the peripheries of the first rotating shaft 215 and the bevel gear 213, one end of the first return spring 212 is abutted against the mounting limit disc 214, the other end of the first return spring is abutted against the driving motor 4, the bevel gear 213 can be in threaded connection with the internal thread disc 211, and the bevel gear 213 is separated from the internal thread disc 211 by the first return spring 212;
the scraping mechanism is arranged in the scraping installation chamber, the scraping mechanism 23 comprises a second rotating shaft 231, a scraping installation disk 232 and a scraping component 233, one end of the second rotating shaft 231 is connected with the first installation rotating disk 224, the other end of the second rotating shaft is connected with the scraping installation disk 232, and the scraping component 233 is arranged on the scraping installation disk 232;
the scraper assembly 233 comprises a rotary scraper 2331, a mounting frame 2332 and coil springs, wherein the mounting frame is arranged in an L shape, the mounting frame 2332 is rotatably mounted on the scraper mounting plate 232, the rotary scraper 2331 is rotatably arranged on the mounting frame 2332, the mounting frame 2332 is provided with coil springs which are respectively abutted against the mounting frame 2332 and the scraper mounting plate 232, the rotary scraper 2331, the mounting frame 2332 and the coil springs are respectively provided with a plurality of groups and are respectively arranged on the scraper mounting plate 232 in a surrounding manner, in the embodiment, the rotary scraper is made of diamond materials, and the coil springs are used for providing elasticity so that the rotary scraper can be continuously abutted against the surface of a fixed nail to scrape a groove on the outer surface of the nail;
the nail pulling module 3 comprises a second speed reducing mechanism 31, a coupler 32, a screw 33, a second return spring 34, a limiting sleeve 35, a third return spring 36, a fixing sleeve 37 and a clamping jaw assembly 38, wherein the second speed reducing mechanism 31 is arranged in a second speed reducing mechanism 31 installation chamber;
the second speed reducing mechanism 31 includes a second housing 311 and a second rear cover 312 disposed on a side of the second housing 311 close to the drive motor;
the structure of the second installation turntable 314 is the same as that of the first installation turntable 224, the structures of the second gear turntable 316 and the third gear turntable 318 are the same as that of the first gear turntable 226, a third central gear is arranged at the center of one side, a third installation shaft which is annularly arranged is arranged on the other side surface, the structures of the third pinion set 315, the fourth pinion set 317 and the fifth pinion set 319 are all the same as that of the first pinion set 225, and gears of the third pinion set 315 are respectively and rotatably arranged on the third installation shaft of the second installation turntable 314, the gears of the fourth pinion set 317 are rotatably arranged on a third mounting shaft of the second gear turntable 316 and are respectively meshed with a third central gear arranged at the center of the third gear turntable 318, the gears of the fifth pinion set 319 are rotatably arranged on the mounting shaft of the third gear turntable 318 and are respectively meshed with a fourth central gear 310 arranged at the center, and the fourth central gear 310 is connected with a rotating shaft of the driving motor 4; the inner surface of the second housing 311 is provided with insections, and the gears of the third pinion set 315, the fourth pinion set 317 and the fifth pinion set 319 are all engaged with the insections of the second housing 311;
the rotating shaft on the other side of the driving motor 4 penetrates through the first rear cover 222 of the second speed reducing mechanism 31 and is connected with the central gear of the second speed reducing mechanism 31, the second mounting turntable 314 of the second speed reducing mechanism 31 is connected with the coupler 32, the other end of the coupler 32 is connected with the screw rod 33, the stop collar 35 is arranged on the periphery of the coupler 32, the second return spring 34 is arranged between the stop collar 35 and the second speed reducing mechanism 31, one end of the second return spring 34 is opposite to the stop collar 35 in the abutting joint, the other end of the second return spring is abutted against the second speed reducing mechanism 31, the fixed collar 37 is slidably arranged on the screw rod 33, the third return spring 36 is arranged between the stop collar 35 and the fixed collar 37, one end of the third return spring 36 is abutted against the stop collar 35, and the other end of the fixed collar 37 is abutted against the fixed collar 37, the fixing sleeve 37 is slidably arranged on the screw rod 33, and the clamping jaw assembly 38 is rotatably arranged on the fixing sleeve 37;
the lateral surface of fixed cover 37 is provided with spacing lug, the medial surface of the third reset spring 36 installation room of casing 1 and fixed cover 37 installation room is provided with spacing spout, spacing lug slides and sets up spacing spout.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
In conclusion, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that these examples are illustrative only and are not intended to limit the scope of the invention. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (5)
1. An orthopedic nail removal device, comprising: a housing;
the slotting module is used for slotting on the nail to facilitate the connection and fixation of the nail pulling module and the nail;
the nail pulling module is used for being connected with the slotted buckle of the nail and pulling out the nail after connection;
the driving motor is respectively connected with the slotting module and the topping module and is used for providing power for the slotting module and the nail pulling module;
the driving motor is a double-head shaft motor, one shaft of the driving motor is connected with the slotting module, and the other shaft of the driving motor is connected with the nail pulling module;
the slotting module comprises a clutch connecting mechanism, a first speed reducing mechanism and a scraper mechanism, the clutch connecting mechanism comprises an inner insection disc, a first reset spring, an umbrella-shaped gear, an installation limiting disc and a first rotating shaft, the inner insection disc is arranged on a rotating shaft close to the front side of the driving motor, one end of the first rotating shaft far away from the driving motor is connected with the first speed reducing mechanism, one end of the first rotating shaft, which is close to the driving motor, is provided with a bevel gear, the installation limiting disc is arranged on one side of the first speed reducing mechanism, which is close to the driving motor, and is sleeved on the peripheries of the first rotating shaft and the bevel gear, one end of the first return spring is abutted with the installation limiting disc, the other end of the first return spring is abutted with the driving motor, the bevel gear can be in threaded connection with the internal threaded disc, and the bevel gear is separated from the internal threaded disc by a first return spring.
2. The orthopedic nail removal device according to claim 1, wherein the scraper mechanism comprises a second rotating shaft, a scraper mounting plate and a scraper assembly, one end of the second rotating shaft is connected with the first speed reducing mechanism, the other end of the second rotating shaft is connected with the scraper mounting plate, and the scraper assembly is arranged on the scraper mounting plate.
3. The orthopedic nail extractor according to claim 2, wherein the scraper assembly comprises a rotary scraper and a mounting frame, the mounting frame is rotatably mounted on the scraper mounting disk, the rotary scraper is rotatably disposed on the mounting frame, the mounting frame is provided with coil springs respectively abutting against the mounting frame and the scraper mounting disk, the rotary scraper and the mounting frame are provided with a plurality of groups, and the groups are respectively circumferentially disposed on the scraper mounting disk.
4. The nail removing device for orthopedics department as claimed in claim 1, wherein the nail pulling module comprises a second speed reducing mechanism, a coupler, a screw rod, a second return spring, a stop collar, a third return spring and a fixed collar, one end of the second speed reducing mechanism is connected with the driving motor, the other end of the second speed reducing mechanism is connected with the coupler, the other end of the coupler is connected with the screw rod, the stop collar is arranged at the periphery of the coupler, the second return spring is arranged between the stop collar and the second speed reducing mechanism, one end of the second return spring is in abutting contact with the stop collar in a facing manner, the other end of the second return spring is in abutting contact with the second speed reducing mechanism, the fixed collar is slidably arranged on the screw rod, the third return spring is arranged between the stop collar and the fixed collar, and one end of the third return spring is in abutting contact with the stop collar, the other end with fixed cover butt, be provided with clamping jaw structure on the fixed cover.
5. The orthopedic nail extractor according to claim 4, wherein the fixing sleeve is provided with a limiting protrusion at the periphery thereof, the housing is provided with a limiting sliding groove at a position matching with the limiting protrusion, and the limiting protrusion is slidably disposed in the limiting sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983201.3A CN112155710B (en) | 2020-09-17 | 2020-09-17 | Nail taking device for orthopedics department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983201.3A CN112155710B (en) | 2020-09-17 | 2020-09-17 | Nail taking device for orthopedics department |
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| Publication Number | Publication Date |
|---|---|
| CN112155710A CN112155710A (en) | 2021-01-01 |
| CN112155710B true CN112155710B (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010983201.3A Active CN112155710B (en) | 2020-09-17 | 2020-09-17 | Nail taking device for orthopedics department |
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| Country | Link |
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| CN (1) | CN112155710B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0009138A1 (en) * | 1978-09-04 | 1980-04-02 | Metallwerk Plansee Gesellschaft M.B.H. | Device for driving or extracting intramedullary nails |
| CN2678587Y (en) * | 2004-03-08 | 2005-02-16 | 吴同军 | Extractor for bone screw |
| CN200963182Y (en) * | 2006-10-27 | 2007-10-24 | 翁习生 | Broken nail extraction apparatus |
| CN203634280U (en) * | 2014-01-02 | 2014-06-11 | 张鹏 | Orthopedic department screw extractor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7144399B2 (en) * | 2002-10-25 | 2006-12-05 | Zimmer Technology, Inc. | Instrumentation guide for orthopedic surgery |
| CN2776321Y (en) * | 2004-12-06 | 2006-05-03 | 胡斌祥 | Broken nail extractor |
| CN201426771Y (en) * | 2009-05-20 | 2010-03-24 | 于晓峰 | Nail pulling device for orthopedics department |
| CN106983555A (en) * | 2017-05-24 | 2017-07-28 | 王海军 | A kind of Orthopeadic Surgery device for fetching nail |
-
2020
- 2020-09-17 CN CN202010983201.3A patent/CN112155710B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0009138A1 (en) * | 1978-09-04 | 1980-04-02 | Metallwerk Plansee Gesellschaft M.B.H. | Device for driving or extracting intramedullary nails |
| CN2678587Y (en) * | 2004-03-08 | 2005-02-16 | 吴同军 | Extractor for bone screw |
| CN200963182Y (en) * | 2006-10-27 | 2007-10-24 | 翁习生 | Broken nail extraction apparatus |
| CN203634280U (en) * | 2014-01-02 | 2014-06-11 | 张鹏 | Orthopedic department screw extractor |
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|---|---|
| CN112155710A (en) | 2021-01-01 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Yongchao Inventor after: Ge Wei Inventor after: Jia Zhike Inventor after: Yang Zehua Inventor before: Yang Zehua |
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Effective date of registration: 20210714 Address after: 458030 Hebi people's Hospital, 115 Jiuzhou Road, Qibin District, Hebi City, Henan Province Applicant after: THE PEOPLE'S HOSPITAL OF HEBI Address before: 415000 Department of orthopedics, Xiangya Changde hospital, Yueyue Avenue, west of Langzhou North Road, Wuling District, Changde City, Hunan Province Applicant before: Yang Zehua |
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