CN108478274B - Medical bone surgery steel plate broken nail treatment method - Google Patents
Medical bone surgery steel plate broken nail treatment method Download PDFInfo
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- CN108478274B CN108478274B CN201810179148.4A CN201810179148A CN108478274B CN 108478274 B CN108478274 B CN 108478274B CN 201810179148 A CN201810179148 A CN 201810179148A CN 108478274 B CN108478274 B CN 108478274B
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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
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
Abstract
The invention belongs to the technical field of medical instruments, and particularly relates to a broken nail processing method for a medical orthopedic surgery steel plate, which comprises a rotary table, a drilling and cutting module, a nail taking module and a lifting module, wherein the rotary table is used for installing the drilling and cutting module and the nail taking module; the drilling and cutting module is used for drilling the long screw and cutting the long screw into a plurality of sections, so that the long screw can be taken out section by section conveniently; the screw taking module is used for taking out each section of the long screws cut by the drilling and cutting module one by one; the lifting module is used for realizing the up-and-down movement of the drilling and cutting module, and meanwhile, the drilling and cutting module and the nail taking module are ensured to be in the same position of the rotating axis in working. The invention adopts the mode of taking out the long screw in sections, can avoid the re-fracture of the screw and has good screw taking effect.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a medical bone surgery steel plate broken nail treatment method.
Background
With the development of orthopedic technology, a screw is generally used to cooperate with a steel plate to fix a fracture part clinically, and when the steel plate and the screw are taken out, the screw is broken and slides due to various reasons such as a thread locking system between the steel plate and the screw and the problem of rusting, the steel plate cannot be smoothly detached and the screw cannot be taken out, so that an orthopedist is difficult to avoid, and the clinician feels difficult. The problem that needs to be solved at present is that the broken steel plate and screw can be successfully taken out without causing further damage to bone because the nail channel has to be reamed and grooved in order to take out the residual screw, which not only affects the tissue blood supply, but also reduces the bone mass in the fixing area and the bone strength.
At present, the most is to tightly clamp the part of the broken nail exposed out of the bone by using instruments such as tweezers and the like, then rotate the tweezers in a reverse direction with force to take out the broken nail, in the process, the broken nail can only be rotated and pulled outwards by hand with force, the force application angle and force application magnitude cannot be ensured, and the nail taking speed is slow due to the fact that an operator does not have assistance, so that the bone is easily damaged additionally; the other method for taking out the broken nail is that a hole is drilled in the middle of the broken nail by a pistol drill, then the broken nail extractor is rotated in, the surface of the broken nail extractor is designed to be a reverse thread, therefore, the broken nail extractor needs to rotate anticlockwise, and the broken nail extractor can rotate reversely after the acting torque is larger than the thread friction torque of the broken nail.
Some technical schemes for taking broken nails in orthopedics also appear in the prior art, for example, a Chinese patent with application number 201620361911 discloses a device for taking out broken nails in orthopedics operation, which comprises a handle, a vertical supporting rod and a fixing and clamping device, wherein a shell is connected with a connecting rod through welding, the shell is arranged between the connecting rods, the vertical supporting rod is fixedly connected with the connecting rods through a first pin, a movable sleeve and a fixing screw, the connecting rod is arranged between the vertical supporting rods, the bottom of the vertical supporting rod is provided with a fixing device and a bolt, a main power chamber and a first motor are arranged below the handle, the first motor is rotationally connected with the screw rod through a first transmission shaft and a first coupling, and the first transmission shaft, the first coupler and the screw rod are arranged in the telescopic device chamber, the screw rod is tightly connected with the fixed clamping device through threads, and the bottom of the fixed clamping device is provided with a fixed clamping claw. Although the technical scheme can realize the taking out of the broken nail, the technical scheme can only carry out the nail taking operation on the broken nail with a part exposed outside the bone; moreover, when the broken screw is long, the torque force required for taking out the whole screw at one time is large, so that the screw is easy to break in the bone, and the screw taking process is time-consuming and labor-consuming.
In view of the above, the method for treating broken nails of medical steel plates for orthopedic operations, provided by the invention, has the advantages that the long screws are taken out in a segmented manner, the screws can be prevented from being broken again, the nail taking effect is good, the application range is wide, and the method has the following specific beneficial effects:
1. according to the medical bone surgery steel plate broken nail processing method, the drilling cutting module, the nail taking module and the lifting module are matched with each other to work, a long screw can be cut into multiple sections, then the screw is taken out one section by one section, the torsion force required when one section of broken nail is taken out is small, the screw is prevented from being broken again, meanwhile, the screw is easy to take out, and the nail taking effect is good.
2. According to the medical treatment method for broken steel plate nails in orthopedic surgery, the lubricating module is used for providing lubricating liquid for lubricating the drilling and cutting module during working, so that the problems that the temperature rises too high in the cutting process, the human body is uncomfortable, and the bone is damaged are avoided; meanwhile, the lubricating liquid can be recycled, and the use cost is reduced.
3. According to the medical bone surgery steel plate broken nail processing method, the drilling cutting module and the nail taking module are located on two sides of the lifting module, and the lifting module can replace the positions of the drilling cutting module and the nail taking module, so that the rotation axes of the nail taking module and the drilling cutting module are in the same straight line when the nail is operated, and the bone is prevented from being damaged.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a medical bone surgery steel plate broken nail treatment method which is mainly used for taking out broken nails of long screws in orthopedics department. According to the invention, the long screw can be taken out in sections by the mutual matching work of the drilling cutting module, the screw taking module and the lifting module, the screw can not be broken again in the screw taking process, and the screw taking effect is good; meanwhile, the lubricating module is arranged, so that the lubricating and cooling can be carried out in the nail taking process, and the damage to bones in the nail taking process is reduced.
1. The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a medical bone surgery steel plate broken nail processing method, which comprises a rotary table, a drilling and cutting module, a nail taking module and a lifting module, wherein the rotary table is used for installing the drilling and cutting module and the nail taking module; the drilling and cutting module is used for drilling the long screws and cutting the long screws into a plurality of sections, so that the long screws can be taken out section by section conveniently; the screw taking module is used for taking out each section of the long screws cut by the drilling and cutting module one by one; the lifting module is used for realizing the up-and-down movement of the drilling and cutting module and ensuring that the rotation axes of the drilling and cutting module and the nail taking module are in the same position during working;
the nail taking method comprises the following steps:
the method comprises the following steps: moving the drilling and cutting module above the broken nail, and driving the drilling and cutting module to move downwards under the driving of the lifting module to drill a bottom hole on the broken nail;
step two: the drilling and cutting module continues to move downwards, so that the depth of a bottom hole in the broken nail is close to the length of the broken nail;
step three: after the drilling and cutting module completes the drilling work of the broken nail, the drilling and cutting module moves upwards for a certain distance to cut the broken nail from the inside of the broken nail so as to horizontally cut the broken nail;
step four: the drilling and cutting module continues to move upwards for a certain distance to horizontally cut off the broken nail;
step five: repeating the step four, and cutting the broken nail into a plurality of sections by the drilling and cutting module;
step six: the rotary table rotates to enable the nail taking module to move above the broken nail, and the nail taking module enters the screw;
step seven: and manually rotating the nail taking module to take out the cut nails one by one.
The drilling and cutting module comprises a drill rod, a drilling motor, a driving wheel, a winding wheel, a coil spring, a cutting strip, a cutting motor and a lubricating module, wherein the drilling motor is arranged on the turntable; the drill rod is vertically arranged below the rotary table, the upper end of the drill rod is connected with an output shaft of a drilling motor, a cutting cavity is arranged in the bottom end of the drill hole, and an outlet is horizontally formed in the bottom of the cutting cavity and communicated with the outside; the number of the driving wheels is two, and the driving wheels are symmetrically arranged at the bottom of the cutting cavity of the drill rod in the left-right direction; the winding wheel is arranged above the cavity of the drill rod, and one end of the winding wheel is provided with a coil spring; one end of the cutting strip is wound on the winding wheel, the other end of the cutting strip horizontally penetrates through an outlet at the bottom of the drill rod after penetrating through the two driving wheels, and the cutting strip is used for horizontally cutting the long screw; the cutting motor is arranged in the drill rod and used for driving the driving wheel to rotate; the lubricating module is used for realizing lubrication when the cutting module performs cutting, and simultaneously reduces the temperature during cutting to avoid causing damage to bones. When the drilling machine works, the drilling motor drives the drill rod to rotate, and meanwhile, the hydraulic cylinder drives the drilling cutting module to move downwards, so that the drill rod punches broken nails; then, the cutting motor drives the driving wheel to rotate, the driving wheel horizontally pushes out the cutting strip along the outlet of the drill rod, in the process, the drilling motor always keeps rotating, the cutting strip gradually moves outwards under the driving of the cutting motor, the broken nail is cut off by cutting the broken nail a little, and the broken nail is cut into a plurality of sections by repeating the cutting operation.
The lubricating module comprises a liquid storage tank, a filter screen and a water suction pump, a liquid inlet is formed in the bottom end of the drill rod, a liquid guide groove is formed in the side wall of the drill rod, and the liquid guide groove is communicated with the liquid inlet; the liquid storage tank is arranged at the top of a cutting cavity of the drill rod, a filter screen is arranged in the liquid storage tank, the liquid storage tank is divided into a left cavity and a right cavity by the filter screen, the left cavity is used for placing lubricating liquid, the right cavity is used for storing dirty water sucked back after cutting, and the right cavity is connected with a liquid guide groove on the drill rod; the water suction pump is used for pumping dirty water into the cavity on the right side of the liquid storage tank through the liquid inlet and the liquid guide groove. In the process that the drill rod punches the broken nail and the cutting strip cuts off the screw, lubricating liquid in the liquid storage tank flows out to lubricate and cool the cutting part, meanwhile, the water suction pump works to pump the lubricating liquid carrying sundries in the hole back to the right chamber of the liquid storage tank, and the lubricating liquid in the right chamber of the liquid storage tank flows back to the left chamber again under the filtration of the filter screen, so that the cyclic utilization is realized.
The nail taking module comprises a nail taking rod, a rotating handle, an air bag, a friction plate and a spring, wherein the middle section of the nail taking rod is of an external thread structure, the nail taking rod is vertically installed on the turntable through threaded connection, an annular groove is coaxially arranged at the bottom end of the nail taking rod, a sliding groove is horizontally arranged in the annular groove along the radial direction, the sliding groove is communicated with the outer circumferential surface of the nail taking rod, the number of the sliding grooves is at least three, and the sliding grooves are uniformly arranged; the air bag is of an annular structure and is arranged in the annular groove of the nail taking rod, and the air bag is used for pushing the friction plate to move outwards; the friction plate is positioned in the sliding groove of the nail taking rod and can horizontally move along the sliding groove; the spring is positioned in the circular groove of the nail taking rod, one end of the spring is connected with the friction plate, and the other end of the spring is fixed at the bottom of the circular groove. After the drilling and cutting module cuts the long screw into a plurality of sections, the rotating handle is rotated to enable the screw taking rod to enter the screw, then the air bag is inflated, the air bag pushes the friction plate out along the sliding groove of the screw taking rod, the friction plate is contacted with the inner wall of the screw, and the friction plate firmly compresses the screw; and then the rotating handle is rotated reversely, and the screw rotates along with the screw taking rod under the driving of the friction plate, so that the broken screw is taken out.
The lifting module comprises a hydraulic cylinder and a rotating motor, and the hydraulic cylinder is vertically arranged; the rotary motor is arranged at the top end of a piston rod of the hydraulic rod in a built-in mode, an output shaft of the rotary motor is arranged in the middle of the rotary table, and the rotary table is in contact with the piston rod of the hydraulic cylinder. After the drilling and cutting module finishes working, the rotating motor rotates to enable the screw taking module to move to the position above the screw, so that the screw taking module can be aligned to the center hole of the screw to operate.
The invention has the beneficial effects that:
1. according to the medical bone surgery steel plate broken nail processing method, the drilling cutting module, the nail taking module and the lifting module are matched with each other to work, a long screw can be cut into multiple sections, then the screw is taken out one section by one section, the torsion force required when one section of broken nail is taken out is small, the screw is prevented from being broken again, meanwhile, the screw is easy to take out, and the nail taking effect is good.
2. According to the medical treatment method for broken steel plate nails in orthopedic surgery, the lubricating module is used for providing lubricating liquid for lubricating the drilling and cutting module during working, so that the problems that the temperature rises too high in the cutting process, the human body is uncomfortable, and the bone is damaged are avoided; meanwhile, the lubricating liquid can be recycled, and the use cost is reduced.
3. According to the medical bone surgery steel plate broken nail processing method, the drilling cutting module and the nail taking module are located on two sides of the lifting module, and the lifting module can replace the positions of the drilling cutting module and the nail taking module, so that the rotation axes of the nail taking module and the drilling cutting module are in the same straight line when the nail is operated, and the bone is prevented from being damaged.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a staple removal method of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 1 at B;
in the figure: the drilling and cutting device comprises a rotary table 1, a drilling and cutting module 2, a nail taking module 3, a lifting module 4, a drill rod 21, a drilling motor 22, a driving wheel 23, a winding wheel 24, a cutting strip 25, a lubricating module 5, a liquid storage tank 51, a filter screen 52, a water suction pump 53, a nail taking rod 31, a rotary handle 32, an air bag 33, a friction plate 34, a hydraulic cylinder 41 and a rotary motor 42.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
2. As shown in fig. 1 to 4, the medical bone surgery steel plate broken nail processing method comprises a rotary table 1, a drilling and cutting module 2, a nail taking module 3 and a lifting module 4, wherein the rotary table 1 is used for installing the drilling and cutting module 2 and the nail taking module 3; the drilling and cutting module 2 is used for drilling long screws and cutting the long screws into a plurality of sections, so that the long screws can be taken out section by section; the screw taking module 3 is used for taking out each section of the long screws cut by the drilling and cutting module 2 one by one; the lifting module 4 is used for realizing the up-and-down movement of the drilling and cutting module 2 and ensuring that the rotation axes of the drilling and cutting module 2 and the nail taking module 3 are in the same position during working;
the nail taking method comprises the following steps:
the method comprises the following steps: moving the drilling and cutting module 2 to the position above the broken nail, and driving the drilling and cutting module 2 to move downwards under the driving of the lifting module 4 to drill a bottom hole on the broken nail;
step two: the drilling and cutting module 2 continues to move downwards, so that the depth of a bottom hole in the broken nail is close to the length of the broken nail;
step three: after the drilling and cutting module 2 completes the work of drilling the broken nail, the drilling and cutting module 2 moves upwards for a certain distance, and the broken nail is cut from the inside of the broken nail so as to horizontally cut the broken nail;
step four: the drilling and cutting module 2 continues to move upwards for a certain distance to horizontally cut off the broken nail;
step five: repeating the step four, and cutting the broken nail into a plurality of sections by the drilling and cutting module 2;
step six: the rotary table 1 rotates to enable the nail taking module 3 to move above the broken nails, and the nail taking module 3 enters the screw;
step seven: the nail taking module 3 is manually rotated to take out the cut nails one by one.
The drilling and cutting module 2 comprises a drill rod 21, a drilling motor 22, a driving wheel 23, a winding wheel 24, a coil spring, a cutting strip 25, a cutting motor and a lubricating module 5, wherein the drilling motor 22 is arranged on the turntable 1; the drill rod 21 is vertically arranged below the turntable 1, the upper end of the drill rod 21 is connected with an output shaft of a drilling motor 22, a cutting cavity is arranged in the bottom end of a drill hole, and an outlet is horizontally formed in the bottom of the cutting cavity and communicated with the outside; the number of the driving wheels 23 is two, and the driving wheels 23 are symmetrically arranged at the bottom of the cutting cavity of the drill rod 21 in the left-right direction; the winding wheel 24 is arranged above the cavity of the drill rod 21, and one end of the winding wheel 24 is provided with a coil spring; one end of the cutting strip 25 is wound on the winding wheel 24, the other end of the cutting strip 25 horizontally penetrates through an outlet at the bottom of the drill rod 21 after passing through the two driving wheels 23, and the cutting strip 25 is used for horizontally cutting the long screw; the cutting motor is arranged in the drill rod 21 and is used for driving the driving wheel 23 to rotate; the lubricating module 5 is used for realizing lubrication when the cutting module performs cutting, and simultaneously reduces the temperature during cutting to avoid causing damage to bones. When the device works, the drilling motor 22 drives the drill rod 21 to rotate, and meanwhile, the hydraulic cylinder 41 drives the drilling and cutting module 2 to move downwards, so that the drill rod 21 punches broken nails; then, the cutting motor drives the driving wheel 23 to rotate, the driving wheel 23 horizontally pushes out the cutting strip 25 along the outlet of the drill rod 21, in the process, the drilling motor 22 always keeps rotating, the cutting strip 25 gradually moves outwards under the driving of the cutting motor, the broken nail is cut off by cutting the broken nail a little by a little, and the broken nail is cut into a plurality of sections by repeating the cutting operation.
The lubricating module 5 comprises a liquid storage tank 51, a filter screen 52 and a water suction pump 53, a liquid inlet is formed in the bottom end of the drill rod 21, a liquid guide groove is formed in the side wall of the drill rod 21, and the liquid guide groove is communicated with the liquid inlet; the liquid storage tank 51 is arranged at the top of a cutting cavity of the drill rod 21, a filter screen 52 is arranged in the liquid storage tank 51, the liquid storage tank 51 is divided into a left cavity and a right cavity by the filter screen 52, the left cavity is used for placing lubricating liquid, the right cavity is used for storing dirty water sucked back after cutting, and the right cavity is connected with a liquid guide groove in the drill rod 21; the water suction pump 53 is used for pumping dirty water into the chamber on the right side of the liquid storage tank 51 through the liquid inlet and the liquid guide groove. In the process that the drill rod 21 punches the broken nail and the cutting strip 25 cuts off the screw, lubricating liquid in the liquid storage tank flows out to lubricate and cool the cutting part, meanwhile, the water suction pump 53 works to pump the lubricating liquid carrying sundries in the hole back to the right cavity of the liquid storage tank 51, the lubricating liquid in the right cavity of the liquid storage tank 51 flows back to the left cavity again under the filtration of the filter screen 52, and the recycling is realized.
The nail taking module 3 comprises a nail taking rod 31, a rotating handle 32, an air bag 33, a friction plate 34 and a spring, wherein the middle section of the nail taking rod 31 is of an external thread structure, the nail taking rod 31 is vertically installed on the turntable 1 through threaded connection, a circular groove is coaxially arranged at the bottom end of the nail taking rod 31, a sliding groove is horizontally arranged in the circular groove along the radial direction, the sliding groove is communicated with the outer circumferential surface of the nail taking rod 31, the number of the sliding grooves is at least three, and the sliding grooves are uniformly arranged; the air bag 33 is of an annular structure, the air bag 33 is arranged in an annular groove of the nail taking rod 31, and the air bag 33 is used for pushing the friction plate 34 to move outwards; the friction plate 34 is positioned in the sliding groove of the nail taking rod 31, and the friction plate 34 can horizontally move along the sliding groove; the spring is positioned in the circular groove of the nail taking rod 31, one end of the spring is connected with the friction plate 34, and the other end of the spring is fixed at the bottom of the circular groove. After the drilling and cutting module 2 cuts the long screw into a plurality of sections, the rotating handle 32 is rotated to enable the screw taking rod 31 to enter the screw, then the air bag 33 is inflated, the air bag 33 pushes the friction plate 34 out along the sliding groove of the screw taking rod 31, the friction plate 34 is in contact with the inner wall of the screw, and the friction plate 34 firmly compresses the screw; then the rotating handle 32 is rotated reversely, the screw is driven by the friction plate 34 to rotate along with the screw taking rod 31, and therefore the broken screw is taken out.
The lifting module 4 comprises a hydraulic cylinder 41 and a rotating motor 42, and the hydraulic cylinder 41 is vertically arranged; the rotating motor 42 is arranged at the top end of a piston rod of the hydraulic rod, an output shaft of the rotating motor 42 is arranged at the middle position of the turntable 1, and the turntable 1 is in contact with the piston rod of the hydraulic cylinder 41. After the drilling and cutting module 2 finishes working, the rotating motor 42 rotates to enable the nail taking module 3 to move to the position above the screw, so that the nail taking module 3 can be aligned to the center hole of the screw to operate.
The specific working process is as follows:
when the device works, the drilling motor 22 drives the drill rod 21 to rotate, and meanwhile, the hydraulic cylinder 41 drives the drilling and cutting module 2 to move downwards, so that the drill rod 21 punches broken nails; then, the cutting motor drives the driving wheel 23 to rotate, the driving wheel 23 horizontally pushes out the cutting strip 25 along the outlet of the drill rod 21, in the process, the drilling motor 22 always keeps rotating, the cutting strip 25 gradually moves outwards under the driving of the cutting motor, the broken nail is cut off by cutting the broken nail a little by a little, and the broken nail is cut into a plurality of sections by repeating the cutting operation. In the process that the drill rod 21 punches the broken nail and the cutting strip 25 cuts off the screw, lubricating liquid in the liquid storage tank flows out to lubricate and cool the cutting part, meanwhile, the water suction pump 53 works to pump the lubricating liquid carrying sundries in the hole back to the right cavity of the liquid storage tank 51, the lubricating liquid in the right cavity of the liquid storage tank 51 flows back to the left cavity again under the filtration of the filter screen 52, and the recycling is realized.
After the drilling and cutting module 2 cuts the long screw into a plurality of sections, the rotating motor 42 rotates to enable the screw taking module 3 to move above the screw, so that the screw taking module 3 can be ensured to be aligned with the central hole of the screw to operate; then, the rotating handle 32 is rotated to enable the screw taking rod 31 to enter the screw, then the air bag 33 is inflated, the air bag 33 pushes the friction plate 34 out along the sliding groove of the screw taking rod 31, the friction plate 34 is in contact with the inner wall of the screw, and the screw is tightly pressed by the friction plate 34; then the rotating handle 32 is rotated reversely, the screw is driven by the friction plate 34 to rotate along with the screw taking rod 31, and therefore the broken screw is taken out.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a medical bone surgery steel sheet is broken nail and is got nail ware which characterized in that: the nail taking device comprises a turntable (1), a drilling and cutting module (2), a nail taking module (3) and a lifting module (4), wherein the turntable (1) is used for installing the drilling and cutting module (2) and the nail taking module (3); the drilling and cutting module (2) is used for drilling the long screws and cutting the long screws into a plurality of sections, so that the long screws can be taken out section by section conveniently; the screw taking module (3) is used for taking out each section of the long screws cut by the drilling and cutting module (2) one by one; the lifting module (4) is used for realizing the up-and-down movement of the drilling cutting module (2), and simultaneously ensuring that the rotation axes of the drilling cutting module (2) and the nail taking module (3) are in the same position when in work;
the nail taking module (3) comprises a nail taking rod (31), a rotating handle (32), an air bag (33), a friction plate (34) and a spring, wherein the middle section of the nail taking rod (31) is of an external thread structure, the nail taking rod (31) is vertically installed on the turntable (1) through threaded connection, a circular groove is coaxially arranged at the bottom end of the nail taking rod (31), a sliding groove is horizontally arranged in the circular groove along the radial direction, the sliding groove is communicated with the outer circumferential surface of the nail taking rod (31), the number of the sliding grooves is at least three, and the sliding grooves are uniformly arranged; the air bag (33) is of an annular structure, the air bag (33) is arranged in a circular groove of the nail taking rod (31), and the air bag (33) is used for pushing the friction plate (34) to move outwards; the friction plate (34) is positioned in a sliding groove of the nail taking rod (31), and the friction plate (34) can horizontally move along the sliding groove; the spring is positioned in the circular groove of the nail taking rod (31), one end of the spring is connected with the friction plate (34), and the other end of the spring is fixed at the bottom of the circular groove;
the drilling and cutting module (2) comprises a drill rod (21), a drilling motor (22), a driving wheel (23), a winding wheel (24), a coil spring, a cutting strip (25), a cutting motor and a lubricating module (5), wherein the drilling motor (22) is arranged on the turntable (1); the drill rod (21) is vertically arranged below the turntable (1), the upper end of the drill rod (21) is connected with an output shaft of a drilling motor (22), a cutting cavity is arranged in the bottom end of the drilling hole, and an outlet is horizontally formed in the bottom of the cutting cavity and communicated with the outside; the number of the driving wheels (23) is two, and the driving wheels (23) are symmetrically arranged at the bottom of the cutting cavity of the drill rod (21) in the left-right direction; the winding wheel (24) is arranged above the cavity of the drill rod (21), and one end of the winding wheel (24) is provided with a coil spring; one end of the cutting strip (25) is wound on the winding wheel (24), the other end of the cutting strip (25) penetrates through the two driving wheels (23) and then horizontally penetrates out of an outlet at the bottom of the drill rod (21), and the cutting strip (25) is used for horizontally cutting the long screw; the cutting motor is arranged in the drill rod (21) and is used for driving the driving wheel (23) to rotate; the lubricating module (5) is used for realizing lubrication when the cutting module performs cutting, and simultaneously reduces the temperature during cutting to avoid causing damage to bones.
2. The medical bone surgery steel plate broken nail extractor according to claim 1, which is characterized in that: the lubricating module (5) comprises a liquid storage tank (51), a filter screen (52) and a water suction pump (53), a liquid inlet is formed in the bottom end of the drill rod (21), a liquid guide groove is formed in the side wall of the drill rod (21), and the liquid guide groove is communicated with the liquid inlet; the liquid storage tank (51) is arranged at the top of a cutting cavity of the drill rod (21), a filter screen (52) is arranged in the liquid storage tank (51), the liquid storage tank (51) is divided into a left cavity and a right cavity by the filter screen (52), the left cavity is used for containing lubricating liquid, the right cavity is used for storing dirty water sucked back after cutting, and the right cavity is connected with a liquid guide groove on the drill rod (21); the water suction pump (53) is used for pumping dirty water into a cavity on the right side of the liquid storage tank (51) through the liquid inlet and the liquid guide groove.
3. The medical bone surgery steel plate broken nail extractor according to claim 1, which is characterized in that: the lifting module (4) comprises a hydraulic cylinder (41) and a rotating motor (42), and the hydraulic cylinder (41) is vertically arranged; the rotary motor (42) is arranged at the top end of a piston rod of the hydraulic rod in a built-in mode, an output shaft of the rotary motor (42) is arranged in the middle of the rotary table (1), and the rotary table (1) is in contact with the piston rod of the hydraulic cylinder (41).
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| CN201810179148.4A CN108478274B (en) | 2018-03-05 | 2018-03-05 | Medical bone surgery steel plate broken nail treatment method |
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| CN201810179148.4A CN108478274B (en) | 2018-03-05 | 2018-03-05 | Medical bone surgery steel plate broken nail treatment method |
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| CN108478274A CN108478274A (en) | 2018-09-04 |
| CN108478274B true CN108478274B (en) | 2020-10-16 |
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| US5697935A (en) * | 1995-09-12 | 1997-12-16 | Medex Marketing, Inc. | Device and method for removing fastening implements from bone |
| US8377100B2 (en) * | 2000-12-08 | 2013-02-19 | Roger P. Jackson | Closure for open-headed medical implant |
| WO2012112986A2 (en) * | 2011-02-18 | 2012-08-23 | Intrinsic Medical, Llc | Surgical fastener and associated systems and methods |
| CN105342688A (en) * | 2015-12-18 | 2016-02-24 | 顾利华 | Medical micro cutter |
| CN105997230B (en) * | 2016-05-03 | 2018-04-10 | 季振涛 | It is easy to take out the orthopedic nail extractor of broken nail |
| CN105852959B (en) * | 2016-05-03 | 2018-06-05 | 烟台海研制药有限公司 | Orthopaedics takes nail equipment |
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2018
- 2018-03-05 CN CN201810179148.4A patent/CN108478274B/en active Active
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| CN108478274A (en) | 2018-09-04 |
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