CN113990162A - Utilize supplementary Colles fracture external fixation's of AR equipment teaching aid - Google Patents
Utilize supplementary Colles fracture external fixation's of AR equipment teaching aid Download PDFInfo
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- CN113990162A CN113990162A CN202111318960.9A CN202111318960A CN113990162A CN 113990162 A CN113990162 A CN 113990162A CN 202111318960 A CN202111318960 A CN 202111318960A CN 113990162 A CN113990162 A CN 113990162A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
Abstract
The invention discloses a teaching aid for assisting external fixation of Colles fracture by utilizing AR equipment, which comprises a teaching aid structure, wherein a power supply is electrically connected with the teaching aid structure, and the teaching aid structure is electrically connected with the AR equipment. The teaching aid structure includes the radius front end, be provided with the fixed block on the radius front end and rotate the blind hole, the one end setting of pull rod is in rotating the blind hole, the other end and the pressure disk of pull rod are articulated, the pressure disk sets up in the shoulder hole on the radius middle part, the pressure disk cooperates with reset spring's one end, reset spring's the other end and the cooperation at the bottom of the hole of shoulder hole, be provided with the PCB board on the radius middle part, be provided with switch button group on the PCB board, it is protruding to be provided with the button of trigger switch button group on the radius front end, the student passes through the different cooperation modes between adjustment radius front end and the radius middle part, can make this teaching aid demonstrate different connection state, different connection state directly simulates out the different states of Colles fracture, the Colles fracture state picture that shows corresponding on AR equipment according to connection state.
Description
Technical Field
The invention relates to the technical field of fracture teaching aid equipment, in particular to a teaching aid for assisting Colles fracture external fixation by utilizing AR equipment.
Background
Colles fracture refers to a fracture of the cancellous bone at the lower end of the radius. The fractures are in cancellous bone parts within the range of 2-3 cm at the lower end of the radius, and Colles fractures are one of the most frequently occurring fractures of a human body, account for 10% of all fractures and are more suitable for adults. The most causes of the disease are flat ground falling, and when the palm props up the ground and the wrist joint is in the dorsal extension and the forearm internal rotation position, violence concentrates on the distal cancellous bone of the radius to cause fracture, and the typical symptom is silver fork-shaped deformity. At present, Colles fracture is mainly treated by external fixation through manual reduction. Traction, pushing, pressing, etc. are required to correct angulation, and ultimately reposition. The whole process depends on the operation experience of a clinician, and the skill can be fully mastered through a large amount of exercises. Therefore, the Colles fracture reduction simulation teaching aid is a tool for primary learning and connection of medical students. However, the existing Colles fracture reduction teaching aid has two defects: firstly, the mechanical structure that the fracture resets is simple, and the experience that the exercise resets and real operation are felt to have the gap, can not reach the purpose of exercise. Secondly, the theory is separated from the operation, so that students cannot fully understand the purposes of traction and extrusion and cannot realize the combination of the theory and practice.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a teaching aid for assisting Colles fracture external fixation by utilizing AR equipment.
The purpose of the invention is realized by the following technical scheme:
the utility model provides an utilize supplementary Colles of AR equipment fracture external fixation's teaching aid, includes teaching aid structure, power and AR equipment, the power with the teaching aid structure electricity is connected, the teaching aid structure with the AR equipment electricity is connected.
Further, the teaching aid structure comprises a radius front end, a pull rod, a pressure plate, a reset spring, a radius middle part, a first cover plate, a PCB (printed circuit board) and an elastic component, wherein a first plane and a second plane are arranged on the radius front end, the first plane and the second plane are oppositely arranged, a fixed block used for fixing the radius front end is fixedly arranged on the first plane, a rotating blind hole perpendicular to the second plane is arranged in the middle of the second plane, a long pin perpendicular to the rotating blind hole is arranged in the rotating blind hole, one end of the pull rod is hinged with the middle part of the long pin, the other end of the pull rod is hinged with one surface of the pressure plate through a short pin, the long pin is arranged in parallel with the short pin, a third plane matched with the second plane is arranged on the radius middle part, a stepped hole penetrating through and perpendicular to the third plane is arranged in the middle of the third plane, the smaller end of the cross section area of the stepped hole is close to the third plane, the pressure plate is arranged in a hole with the larger cross section area of the stepped hole, the pressure plate cannot rotate in the stepped hole and is matched with one end of the reset spring in a compressed state, the other end of the reset spring is matched with the hole bottom with the larger cross section area of the stepped hole, the third plane is further provided with a limiting blind hole perpendicular to the third plane, the side wall of the limiting blind hole is provided with a through cable hole, the elastic component is arranged at the bottom of the limiting blind hole and is matched with the lower surface of the PCB, the upper surface of the PCB is matched with the first cover plate, the first cover plate is arranged at the opening part of the limiting blind hole and is matched with the opening part, and the upper surface of the first cover plate and the third plane are positioned on the same plane, the PCB is electrically connected with the power supply, the PCB is electrically connected with the AR equipment, a switch button group is arranged on the PCB, a button hole matched with the switch button group is formed in the first cover plate, a button bulge used for triggering the switch button group is fixedly arranged on the second plane, and a limit adjusting component used for enabling the button bulge to touch the switch button group is arranged between the second plane and the third plane.
Further, the switch button group comprises a downward deviation button, a reset button, an upward deviation button and a fracture button which are sequentially arranged, the downward deviation button, the reset button, the upward deviation button and the fracture button are all arranged on a first straight line, the two adjacent buttons are arranged at equal intervals, and the center distance between the two buttons is H1The first straight line is perpendicular to the long pin
Furthermore, the limiting and adjusting assembly comprises a plurality of first adjusting protrusions and at least four first adjusting grooves, and the first adjusting protrusions are used for adjusting the position of the first adjusting groovesProtruding with first regulation recess cooperation just first regulation arch is in can not rotate in the first regulation recess, it is a plurality of first regulation recess sets up on the second straight line, the second straight line with first straight line is parallel, and adjacent two equidistant setting between the first regulation recess, two central distance between the first regulation recess is H2In which H is1= H2。
Further, the first adjusting protrusion is fixedly arranged on the third plane, and the first adjusting groove is arranged on the second plane; or the first adjusting bulge is fixedly arranged on the second plane, and the first adjusting groove is arranged on the third plane.
Further, spacing adjusting part includes that a plurality of second adjust protruding and at least four second and adjust the recess, the second adjust protruding with the cooperation of second regulation recess, it is a plurality of the second is adjusted the recess and is set up on the third straight line, the third straight line with the second straight line is parallel, and adjacent two equidistant setting between the second adjusts the recess, two central distance between the second adjusts the recess is H3In which H is3= H2。
Furthermore, the second adjusting protrusion is fixedly arranged on the first cover plate, and the first adjusting groove is arranged on the second plane; or the second adjusting bulge is fixedly arranged on the second plane, and the second adjusting groove is fixedly arranged on the first cover plate.
Further, elastic component includes PCB pressure spring and guide bar, the bottom of spacing blind hole is fixed at least to be provided with two perpendicular to the third planar the guide bar, be provided with on the PCB board with guide bar complex guiding hole, the PCB pressure spring cover is established the guide bar, the one end of PCB pressure spring with the bottom contact of spacing blind hole, the other end of PCB pressure spring with the PCB board contact.
Further, a fourth plane parallel to the third plane is arranged on the middle portion of the radius, a second cover plate used for blocking the stepped hole is arranged on the fourth plane, an ulna is arranged on the second cover plate, an ulna hole matched with the end portion of the ulna is formed in the second cover plate, the radius is arranged on the middle portion of the radius, and the end portion of the radius is fixedly connected with the middle portion of the radius after penetrating through the radius hole in the second cover plate.
Further, be provided with microcontroller and communication module on the PCB board, microcontroller's power supply end with the power electricity is connected, down inclined to one side button, reset button, upward inclined to one side button and fracture button all with microcontroller's input electricity is connected, microcontroller's output with communication module electricity is connected, communication module with AR equipment electricity is connected.
The invention has the beneficial effects that:
1) in this scheme, the student can make this teaching aid demonstrate different connection states through the different cooperation modes between adjustment radius front end and the radius middle part, and different connection states directly simulate out the different states of Colles fracture, and different connection states can trigger the different buttons that set up on the PCB board on this teaching aid, and different buttons correspond different signals, then give AR equipment with this signal transmission, can audio-visually see Colles fracture state on AR equipment.
2) Through the effect of the first adjusting protrusion and the second adjusting protrusion, the adjustment between the front end of the radius and the middle part of the radius is more convenient, the front end of the radius and the middle part of the radius cannot rotate, the operation difficulty of a student is reduced, and the learning of the student is facilitated.
Drawings
FIG. 1 is a perspective structural view of the teaching aid;
FIG. 2 is a perspective exploded view of the structure of the teaching aid;
FIG. 3 is a perspective view of a PCB;
FIG. 4 is a perspective view of the middle portion of the radius;
FIG. 5 is a perspective view of the anterior end of the radius;
FIG. 6 is a front view of the structure of the teaching aid;
FIG. 7 is a sectional view taken along line A-A of FIG. 6;
fig. 8 is a sectional view taken along line B-B of fig. 6 (i.e., a view showing a connection between the middle radius portion and the front radius portion in a completely reduced state);
FIG. 9 is a view showing a connection structure of the middle portion of the radius and the front end of the radius in a declination state;
FIG. 10 is a view showing a connection structure of the middle portion of the radius and the front end of the radius in an upward deviated state;
FIG. 11 is a view showing a connection structure of the middle portion of the radius and the front end of the radius in a complete fracture state;
FIG. 12 is a picture seen in an AR device in a fully reset state;
FIG. 13 is a picture seen in an AR device in a down-biased state;
FIG. 14 is a picture seen in an AR device in an up-biased state;
FIG. 15 is a picture as seen in the AR device in a full fracture state;
FIG. 16 is a picture as seen in an AR device in a stretched state;
in the figure, 1-radius front end, 2-pull rod, 3-press disk, 4-reset spring, 5-radius middle part, 6-first cover plate, 7-PCB plate, 8-first plane, 9-second plane, 10-fixed block, 11-rotating blind hole, 12-long pin, 13-short pin, 14-third plane, 15-stepped hole, 16-limit blind hole, 17-cable hole, 18-button hole, 19-button bulge, 20-downward bias button, 21-reset button, 22-upward bias button, 23-fracture button, 24-first regulation bulge, 25-first regulation groove, 26-second regulation bulge, 27-second regulation groove, 28-PCB pressure spring, 29-guide rod, 30-guide hole, 31-fourth plane, 32-second cover, 33-ulna, 34-ulna hole, 35-radius, 36-radius hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-16, the present invention provides a technical solution:
the utility model provides an utilize supplementary Colles of AR equipment fracture external fixation's teaching aid, includes teaching aid structure, power and AR equipment, and the power is connected with the teaching aid structure electricity, and the teaching aid structure is connected with AR equipment electricity. Wherein, the AR equipment is prior art equipment, and the power is the 7 power supplies of PCB board in the teaching aid structure, and the teaching aid structure can simulate the multiple state of Colles fracture, and the AR equipment is given to PCB board 7 different states that will detect, and the automatic show of AR equipment presets the Colles fracture picture in AR equipment inside, makes the student more can audio-visual see the result when the operation like this, makes things convenient for the student to study. The teaching aid structure total simulation Colles fracture state corresponds to the button one-to-one on PCB board 7, and the button on PCB board 7 corresponds to the Colles fracture picture one-to-one that AR equipment is inside to be preset, just so can realize simulating Colles fracture state and Colles fracture picture one-to-one in the teaching aid structure.
In some embodiments, the teaching aid structure comprises a radius front end 1, a pull rod 2, a pressure plate 3, a reset spring 4, a radius middle part 5, a first cover plate 6, a PCB (printed circuit board) 7 and an elastic component, wherein the radius front end 1 is provided with a first plane 8 and a second plane 9, the first plane 8 and the second plane 9 are arranged oppositely, a fixed block 10 for fixing the radius front end 1 is fixedly arranged on the first plane 8, the middle part of the second plane 9 is provided with a rotating blind hole 11 perpendicular to the second plane 9, a long pin 12 perpendicular to the rotating blind hole 11 is arranged in the rotating blind hole 11, one end of the pull rod 2 is hinged in the rotating blind hole 11 and hinged with the middle part of the long pin 12, the other end of the pull rod 2 is hinged with one surface of the pressure plate 3 through a short pin 13, the long pin 12 is arranged parallel to the short pin 13, the radius middle part 5 is provided with a third plane 14 matched with the second plane 9, the middle part of the third plane 14 is provided with a stepped hole 15 penetrating through and perpendicular to the third plane 14, the smaller end of the cross section area of the stepped hole 15 is arranged close to the third plane 14, the pressure plate 3 is arranged in a hole with the larger cross section area of the stepped hole 15, the pressure plate 3 cannot rotate in the stepped hole 15, the pressure plate 3 is matched with one end of the reset spring 4 in a compressed state, the other end of the reset spring 4 is matched with the bottom of the hole with the larger cross section area of the stepped hole 15, the third plane 14 is also provided with a limiting blind hole 16 perpendicular to the third plane 14, the side wall of the limiting blind hole 16 is provided with a through cable hole 17, an elastic component is arranged at the bottom of the limiting blind hole 16 and matched with the lower surface of the PCB 7, the upper surface of the PCB 7 is matched with the first cover plate 6, the first cover plate 6 is arranged at the opening part of the limiting blind hole 16 and matched with the opening part, the upper surface of the first cover plate 6 and the third plane 14 are on the same plane, the PCB 7 is electrically connected with a power supply, and the PCB 7 is electrically connected with AR equipment, a switch button group is arranged on the PCB 7, a button hole 18 matched with the switch button group is arranged on the first cover plate 6, a button bulge 19 used for triggering the switch button group is fixedly arranged on the second plane 9, and a limit adjusting component used for enabling the button bulge 19 to touch the switch button group is arranged between the second plane 9 and the third plane 14. Wherein, the teaching aid structure mainly is used for simulating different states in Colles fracture, and reset spring 4 is in compression state always, prevents to separate completely between radius front end 1 and the radius middle part 5, sets up pull rod 2, pressure disk 3, long round pin 12 and short round pin 13 and can realize producing the dislocation simulation between radius front end 1 and the radius middle part 5, can also realize reseing in the simulation, can repeated exercise many times, has made things convenient for student's study. In this teaching aid structure, the cross-section of radius front end 1 and radius middle part 5 all is oval, and radius front end 1 is provided with the long round pin hole that runs through along oval major axis direction, and long round pin 12 sets up in long round pin hole, and the both ends of pull rod 2 all are provided with the through-hole that runs through, and long round pin 12 and short round pin 13 insert two through-holes respectively in, and long round pin 12 is parallel to each other with short round pin 13, and long round pin 12 and short round pin 13 all are perpendicular with pull rod 2. The both ends setting of short pin 13 is on two engaging lugs, and two engaging lugs are fixed in the one end of boss, and the other end of boss is fixed continuous with the middle part of pressure disk 3. The cross-section of pressure disk 3 is circular, is the symmetry on pressure disk 3's edge and is provided with two sliders, is provided with two on the inner wall of shoulder hole 15 with slider complex spout, the purpose that sets up like this prevents that pressure disk 3 from rotating in shoulder hole 15. In practical operation, the radius front end 1 is separated from the radius middle part 5, so that the first adjusting protrusion 24 is separated from the first adjusting groove 25, and then moves along a first straight line, when the first adjusting protrusion 24 is matched with another first adjusting groove 25, the first adjusting protrusion 24 is inserted into the first adjusting groove 25 under the action of the pull rod 2, the pressure plate 3 and the return spring 4, so that the position change between the radius front end 1 and the radius middle part 5 can be realized, and the corresponding button protrusion 19 can be changed from pressing the previous button to pressing another button, and the change can be seen from the AR device synchronously. In this scheme, first plane 8 is parallel to each other with second plane 9, and fixed block 10 sets up at the middle part of first plane 8, and whole teaching aid structure passes through fixed block 10 to be fixed and makes things convenient for the student to operate on a support. The return spring 4 simulates the real traction hand feeling, and the traction force of the return spring 4 is 200N/2 mm. The middle radius part 5 is connected with the first cover plate 6 through bolts.
In some embodiments, the switch button group comprises a downward-biased button 20, a reset button 21, an upward-biased button 22 and a fracture button 23 which are arranged in sequence, the downward-biased button 20, the reset button 21, the upward-biased button 22 and the fracture button 23 are all arranged on a first straight line, the two adjacent buttons are arranged at equal intervals, and the center distance between the two buttons is H1The first line is perpendicular to the long pin 12. The PCB 7 is provided with a microcontroller and a communication module, the power supply end of the microcontroller is electrically connected with a power supply, the lower deflection button 20, the reset button 21, the upper deflection button 22 and the fracture button 23 are electrically connected with the input end of the microcontroller, the output end of the microcontroller is electrically connected with the communication module, and the communication module is electrically connected with the AR equipment. Wherein, communication module is prior art's bluetooth, also be provided with the bluetooth at AR equipment, can carry out the transmission of information through two bluetooth, the button 20 that inclines downwards, reset button 21, upward incline button 22 and fracture button 23 all can be the pressure sensor among the prior art, every pressure sensor is independently connected with microcontroller electricity, when the pressure sensor who corresponds receives the protruding 19 pressure of button, this pressure sensor gives microcontroller with signal transmission, handle the back through microcontroller and give the bluetooth with signal transmission, make AR equipment display the picture content of corresponding state through the bluetooth, make the student can directly perceivedly see the result. The pressure sensor can also be replaced by other modes, for example, a switch is used for replacing, two ends of the switch are connected with the microcontroller, when an electric signal is on a corresponding interface on the microcontroller, the signal can be transmitted to the Bluetooth, and finally, the AR equipment can display picture content in a corresponding state. In this scheme, four states are set: first, a complete reduction state, the middle radius 5 and the radiusThe normal connection between the anterior ends 1, the connection configuration between the mid-radius 5 and the anterior radius 1 is shown in fig. 8, with the button projection 19 acting on the reset button 21, and the result shown in the AR device is shown in fig. 12; a downward deviation state, wherein the middle radius part 5 moves a distance to one side relative to the front radius end 1, the connecting structure between the middle radius part 5 and the front radius end 1 is shown in fig. 9, and the button bulge 19 acts on the downward deviation button 20, and the result shown in the AR device is shown in fig. 13; ③ upward deviation state, the middle radius 5 moves a distance to the other side relative to the front radius 1, the connecting structure between the middle radius 5 and the front radius 1 is shown in fig. 10, and at this time, the button projection 19 acts on the upward deviation button 22, and the result shown in the AR device is shown in fig. 14; and a complete fracture state, wherein on the basis of the deviated state, the middle radius 5 continues to move a distance to the other side relative to the front radius end 1, the connection structure between the middle radius 5 and the front radius end 1 is shown in fig. 11, and the button projection 19 acts on the fracture button 23, and the result shown in the AR device is shown in fig. 15. Wherein, under the effect of spacing adjusting part, when realizing the change between several kinds of states, the separation will be realized between radius middle part 5 and radius front end 1, can show the picture of tensile state in the AR equipment this moment, as shown in fig. 16.
In some embodiments, the limiting adjustment assembly comprises a plurality of first adjustment protrusions 24 and at least four first adjustment grooves 25, the first adjustment protrusions 24 are matched with the first adjustment grooves 25, the first adjustment protrusions 24 cannot rotate in the first adjustment grooves 25, the plurality of first adjustment grooves 25 are arranged on a second straight line, the second straight line is parallel to the first straight line, the two adjacent first adjustment grooves 25 are arranged at equal intervals, and the center distance between the two first adjustment grooves 25 is H2In which H is1= H2. In the simulation process, a certain offset distance is needed between the middle part 5 of the radius and the front end 1 of the radius, so that a limit adjusting assembly is arranged, the limit adjusting assembly can be adjusted for four times, and the four times of adjustment correspond to four states of Colles fracture one by one. The pull rod 2 is in a diagonal state in the rest of the state except for the completely reset state, in order to make the stateThe radius middle part 5 and the radius front end 1 do not rotate, so the first adjusting bulge 24 can not rotate in the first adjusting groove 25, in the scheme, the cross section of the first adjusting bulge 24 is oval, and the cross section of the first adjusting bulge 24 can be set to be square, etc. Because realize four position control at least in this scheme, so the quantity of first regulation recess 25 is four at least, in order to make this teaching aid structure durable, so first regulation arch 24 sets up two at least, is provided with four in this scheme, and the central distance between two adjacent first regulation archs 24 is H2And is fitted with the first regulation recess 25.
In some embodiments, the first adjusting protrusion 24 is fixedly disposed on the third plane 14, and the first adjusting recess 25 is disposed on the second plane 9; or the first regulating protrusion 24 is fixedly arranged on the second plane 9 and the first regulating groove 25 is arranged on the third plane 14. In the teaching aid structure, the two setting modes can be applied.
In some embodiments, the limiting adjustment assembly comprises a plurality of second adjustment protrusions 26 and at least four second adjustment grooves 27, the second adjustment protrusions 26 are matched with the second adjustment grooves 27, the plurality of second adjustment grooves 27 are arranged on a third straight line, the third straight line is parallel to the second straight line, two adjacent second adjustment grooves 27 are arranged at equal intervals, and the central distance between two adjacent second adjustment grooves 27 is H3In which H is3= H2. In order to balance the force and facilitate the operation, a second adjusting protrusion 26 and a second adjusting recess 27 are provided. And the second regulating protrusion 26 and the second regulating recess 27 are provided at one side of the drawbar 2 and the first regulating protrusion 24 and the first regulating recess 25 are provided at the other side of the drawbar 2. In this embodiment, two second adjusting protrusions 26 are provided, and the center distance between the two second adjusting protrusions 26 is H2And engages with the second regulation recess 27.
In some embodiments, the second adjustment protrusion 26 is fixedly disposed on the first cover plate 6, and the first adjustment groove 25 is disposed on the second plane 9; or the second adjusting projection 26 is fixedly arranged on the second plane 9 and the second adjusting groove 27 is fixedly arranged on the first cover plate 6. In the teaching aid structure, the two setting modes can be applied. According to the scheme, the second adjusting protrusion 26 is fixedly arranged on the first cover plate 6, and the first adjusting groove 25 is arranged on the second plane 9.
In some embodiments, the elastic component includes a PCB compression spring 28 and a guide rod 29, at least two guide rods 29 perpendicular to the third plane 14 are fixedly disposed at the bottom of the blind limiting hole 16, a guide hole 30 matched with the guide rod 29 is disposed on the PCB 7, the PCB compression spring 28 is sleeved on the guide rod 29, one end of the PCB compression spring 28 contacts with the bottom of the blind limiting hole 16, and the other end of the PCB compression spring 28 contacts with the PCB 7. The purpose of setting up elastic component is in order to reduce the protruding 19 impact force to PCB board 7 of button, makes PCB board 7 can only reciprocate at spacing blind hole 16 simultaneously, if PCB board 7 can also move to spacing blind hole 16 lateral wall at spacing blind hole 16, then button protruding 19 exists probably can not press on the button of PCB board 7, causes AR to establish to distinguish the show picture failure.
In some embodiments, a fourth plane 31 parallel to the third plane 14 is disposed on the middle radius 5, a second cover plate 32 for blocking the stepped hole 15 is disposed on the fourth plane 31, an ulna 33 is disposed on the second cover plate 32, an ulna hole 34 matched with an end of the ulna 33 is disposed on the second cover plate 32, a radius 35 is disposed on the middle radius 5, and an end of the radius 35 passes through a radius hole 36 of the second cover plate 32 and is fixedly connected to the middle radius 5. In the simulation, the ulna 33 and the radius 35 are both mounted on the teaching aid in order to make the teaching aid more realistic. The middle radius part 5 is connected with the second cover plate 32 through bolts, the ulna 33 is directly inserted into the ulna hole 34, and the middle radius part 5 is connected with the end part of the radius 35 through threads.
According to the invention, students can enable the teaching aid to present different connection states by adjusting different matching modes between the front end of the radius and the middle part of the radius, the different connection states can directly simulate different states of Colles fracture, different buttons arranged on the PCB can be triggered by the different connection states on the teaching aid, the different buttons correspond to different signals, and then the signals are transmitted to the AR equipment, so that the Colles fracture state can be visually seen on the AR equipment.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an utilize supplementary Colles fracture external fixation's of AR equipment teaching aid which characterized in that: including teaching aid structure, power and AR equipment, the power with the teaching aid structure electricity is connected, the teaching aid structure with the AR equipment electricity is connected.
2. The teaching aid for assisting Colles fracture external fixation by using AR equipment as claimed in claim 1, wherein: the teaching aid structure comprises a radius front end (1), a pull rod (2), a pressure plate (3), a reset spring (4), a radius middle part (5), a first cover plate (6), a PCB (7) and an elastic component, wherein a first plane (8) and a second plane (9) are arranged on the radius front end (1), the first plane (8) and the second plane (9) are oppositely arranged, a fixing block (10) used for fixing the radius front end (1) is fixedly arranged on the first plane (8), a rotating blind hole (11) perpendicular to the second plane (9) is arranged in the middle of the second plane (9), a long pin (12) perpendicular to the rotating blind hole (11) is arranged in the rotating blind hole (11), one end of the pull rod (2) is arranged in the rotating blind hole (11) and hinged with the middle of the long pin (12), the other end of the pull rod (2) is hinged with one face of the pressure plate (3) through a short pin (13), the long pin (12) is arranged in parallel with the short pin (13), a third plane (14) matched with the second plane (9) is arranged on the middle part (5) of the radius, a stepped hole (15) penetrating through and perpendicular to the third plane (14) is arranged in the middle part of the third plane (14), the smaller cross-sectional area end of the stepped hole (15) is close to the third plane (14), the pressure plate (3) is arranged in a hole with the larger cross-sectional area of the stepped hole (15), the pressure plate (3) cannot rotate in the stepped hole (15), the pressure plate (3) is matched with one end of the reset spring (4) in a compression state, the other end of the reset spring (4) is matched with the bottom of the hole with the larger cross-sectional area of the stepped hole (15), the third plane (14) is further provided with a limiting blind hole (16) perpendicular to the third plane (14), a penetrating cable hole (17) is formed in the side wall of the limiting blind hole (16), the elastic component is arranged at the bottom of the limiting blind hole (16) and matched with the lower surface of the PCB (7), the upper surface of the PCB (7) is matched with the first cover plate (6), the first cover plate (6) is arranged at the opening of the limiting blind hole (16) and matched with the opening, the upper surface of the first cover plate (6) and the third plane (14) are located on the same plane, the PCB (7) is electrically connected with the power supply, the PCB (7) is electrically connected with the AR equipment, a switch button group is arranged on the PCB (7), and a button hole (18) matched with the switch button group is arranged on the first cover plate (6), a button bulge (19) used for triggering the switch button group is fixedly arranged on the second plane (9), and a limit adjusting assembly enabling the button bulge (19) to touch the switch button group is arranged between the second plane (9) and the third plane (14).
3. The teaching aid for assisting Colles fracture external fixation by using AR equipment as claimed in claim 2, wherein: the switch button group comprises a lower deviation button (20), a reset button (21), an upper deviation button (22) and a fracture button (23) which are sequentially arranged, the lower deviation button (20), the reset button (21), the upper deviation button (22) and the fracture button (23) are all arranged on a first straight line, the two adjacent buttons are arranged at equal intervals, and the center distance between the two buttons is H1Said first straight line being perpendicular to said long pin (12)。
4. The teaching aid for assisting Colles fracture external fixation by using AR equipment as claimed in claim 3, wherein: spacing adjusting part includes a plurality of first regulation archs (24) and at least four first regulation recesses (25), first regulation arch (24) with first regulation recess (25) cooperation just first regulation arch (24) are in can not rotate in first regulation recess (25), and are a plurality of first regulation recess (25) set up on the second straight line, the second straight line with first straight line is parallel, and adjacent two equidistant setting between first regulation recess (25), two central distance between first regulation recess (25) is H2In which H is1= H2。
5. The teaching aid for assisting Colles fracture external fixation by using AR equipment as claimed in claim 4, wherein: the first adjusting protrusion (24) is fixedly arranged on the third plane (14), and the first adjusting groove (25) is arranged on the second plane (9); or the first adjusting bulge (24) is fixedly arranged on the second plane (9), and the first adjusting groove (25) is arranged on the third plane (14).
6. A teaching aid for assisting Colles fracture external fixation by using AR device according to claim 4 or 5, characterized in that: spacing adjusting part includes that a plurality of second adjust protruding (26) and at least four second adjust recess (27), protruding (26) are adjusted to the second with second adjusts recess (27) cooperation, and is a plurality of second adjusts recess (27) and sets up on the third straight line, the third straight line with the second straight line is parallel, and adjacent two equidistant setting between second adjusts recess (27), two central distance between second adjusts recess (27) is H3In which H is3= H2。
7. The teaching aid for assisting Colles fracture external fixation by using AR equipment as claimed in claim 6, wherein: the second adjusting protrusion (26) is fixedly arranged on the first cover plate (6), and the first adjusting groove (25) is arranged on the second plane (9); or the second adjusting bulge (26) is fixedly arranged on the second plane (9), and the second adjusting groove (27) is fixedly arranged on the first cover plate (6).
8. A teaching aid for assisting Colles fracture external fixation using an AR device as claimed in claim 2, 3, 4 or 5, wherein: elastic component includes PCB pressure spring (28) and guide bar (29), the bottom of spacing blind hole (16) is fixed at least to be provided with two perpendicular to third plane (14) guide bar (29), be provided with on PCB board (7) with guide bar (29) complex guiding hole (30), PCB pressure spring (28) cover is established guide bar (29), the one end of PCB pressure spring (28) with the bottom contact of spacing blind hole (16), the other end of PCB pressure spring (28) with PCB board (7) contact.
9. A teaching aid for assisting Colles fracture external fixation using an AR device as claimed in claim 2, 3, 4 or 5, wherein: be provided with on radius middle part (5) with fourth plane (31) that third plane (14) are parallel, be provided with on fourth plane (31) and be used for the shutoff second apron (32) of shoulder hole (15), be provided with ulna (33) on second apron (32), be provided with on second apron (32) with ulna (33) tip complex ulna hole (34), be provided with radius (35) on radius middle part (5), the tip of radius (35) passes behind radius hole (36) on second apron (32) with radius middle part (5) are fixed continuous.
10. A teaching aid for assisting Colles fracture external fixation using AR device as claimed in claim 3, 4 or 5, wherein: be provided with microcontroller and communication module on PCB board (7), microcontroller's power supply end with the power electricity is connected, down inclined to one side button (20), reset button (21), upward inclined to one side button (22) and fracture button (23) all with microcontroller's input electricity is connected, microcontroller's output with the communication module electricity is connected, communication module with AR equipment electricity is connected.
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| CN202111318960.9A CN113990162B (en) | 2021-11-09 | 2021-11-09 | Utilize supplementary Colles fracture external fixation's of AR equipment teaching aid |
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| CN113990162B (en) | 2023-04-07 |
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