CN218676308U

CN218676308U - Human spine compression and fracture teaching aid

Info

Publication number: CN218676308U
Application number: CN202222481066.XU
Authority: CN
Inventors: 周红海; 秦明芳; 陈龙豪; 苏少亭
Original assignee: Guangxi University of Chinese Medicine
Current assignee: Guangxi University of Chinese Medicine
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-03-21
Anticipated expiration: 2032-09-20

Abstract

A teaching aid assembly for simulating human spine compression and fracture is characterized in that a support frame is fixed on a base, the horizontal section of the support frame is connected with the upper end of a suspender, and a plurality of vertebra units can be penetrated and fixed on the suspender. The utility model can simulate the conditions of human vertebra compression, vertebra fracture and the like, thereby generating visual impression to the trainees, improving the learning efficiency and deepening the understanding; the teaching aid is sturdy and durable, convenient to operate, and convenient to carry and operate.

Description

Human spine compression and fracture teaching aid

Technical Field

The utility model relates to a teaching aid equipment technical field specifically is a human backbone compression of simulation and fracture teaching aid that bursts.

Background

In the field of medical education and courses of skeletal injuries and fracture types in orthopedics, in order to enable a trainee to have more visual impression, the trainee often performs auxiliary education by means of multimedia audio and video and the like besides text and pattern display in textbooks and books, and obtains a certain good effect. In the actual teaching condition, except above-mentioned teaching means, if can redesign the teaching aid cooperation use about skeletal damage and fracture, can make things convenient for student's multi-angle, closely, can touch etc. more audio-visual mode to observe it, to the biomedical student, can improve its understanding to above-mentioned human skeletal injury greatly.

The prior literature still has no teaching aid for bone injuries such as bone fractures, and particularly, no teaching aid for injuries of human spinal vertebrae is described. The following were retrieved for similar teaching aids or tools:

1. a high-simulation orthopedics first aid multiple surgical skill training and examination model; CN201811517295.4; the medical teaching aid is characterized in that four simulated skins of a high-simulation human body model are made of thermoplastic elastomers such as TPE (thermoplastic elastomer) for simulated subcutaneous tissues and muscles; the skeleton is molded by a hard PVC plus 10 percent X-ray contrast agent mold, and is provided with a simulated medullary cavity and a simulated cancellous bone at the metaphysis; can be developed on X-ray film without metal artifacts; one limb is made into various fractures with fracture lines/sections and is provided with a full-automatic blood circulation simulator for simulating arteriolar connection; making a simulated joint dislocation on the other side of the limbs without fracture; the limb fracture can be fixed by a small splint for emergency treatment, the fracture can be reduced by a fracture manipulation, external fixation such as the small splint can be adopted, and the complicated fracture can be caused by the loss of vivid arteriolar jet hemorrhage of the injured artery during the operation of internal fixation; the orthopedic traction instrument can also be used for various orthopedic operations such as bone traction, joint dislocation, fracture reduction and the like, is used for orthopedic first aid and orthopedic training of various surgical skills of medical students in orthopedics and traumatology in medical colleges and hospitals, and obviously improves the teaching effect.

2. TPLO operation demonstration teaching aid; CN202120819423.1; the utility model provides a TPLO operation demonstration teaching aid, thighbone model below is provided with the tarsal bone model, the one end of tarsal bone model is articulated through first articulated shaft and bottom plate, the other end constitutes spacing cooperation with the stopper that sets up on the bottom plate, the axle core of first articulated shaft is arranged perpendicularly to the bottom plate, be provided with the shin bone model between thighbone model and the tarsal bone model, the lower extreme of shin bone model and tarsal bone model are articulated through second articulated shaft, the up end of shin bone model is the arc recess, the section is arranged in the arc recess and constitutes normal running fit, section up end and thighbone model laminating. During the demonstration, rotate section adjustment section position in the arc recess, when the mechanical axis vertical position of sliced upper plate and shin bone model, can discover until how to stir the tarsal bone model, sliced upper plate edge and thighbone model do not move, and the relative position of section and shin bone model this moment is exactly the shin bone and the relative position of cutting the bone in the TPLO operation, and this teaching aid makes things convenient for mr's demonstration explanation, also is favorable to the student to understand.

3. A model of osteoporosis symptoms; cn202120106347.X; the utility model discloses a belong to orthopedics teaching aid model technical field, specifically be a osteoporosis symptom model, the on-line screen storage device comprises a base, the cavity has been seted up to the inside of base, the upper end of base vertically is provided with the bracing piece, the bracing piece pass through the bearing with the last lateral wall of base rotates to be connected, the lower extreme of bracing piece runs through the inside that the last lateral wall of cavity extends to the cavity and fixes and be provided with first bevel gear, the inside of cavity transversely is provided with the bull stick, the left end of bull stick is fixed and is provided with second bevel gear, second bevel gear with mesh between the first bevel gear, the angle of the model of being convenient for adjust as required makes things convenient for all-round teaching, and better show is convenient for carry out the centre gripping with the model and presses fixedly, when not using, can dismantle the model, prevents that the model from placing for a long time and cause the oxidation in the air, produces the colour difference, influences the teaching.

Although the above prior art documents describe some teaching aids or models relating to bone structure, no teaching aid has been described for teaching spinal injuries and the like.

Disclosure of Invention

The utility model aims at providing a teaching aid for simulating human spinal compression and fracture, which can simulate the conditions of human spinal compression, spinal fracture and the like, thereby generating visual impression to the trainees, improving the learning efficiency and deepening the understanding; the teaching aid is sturdy and durable, convenient to operate, and convenient to carry and operate.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a support frame is fixed on a base, the horizontal section of the support frame is connected with the upper end of a suspender, and a plurality of vertebra units can be penetrated and fixed on the suspender. The appearance of the vertebra units is completely restored in equal proportion according to the vertebra of the human body, and the vertebra units are vertically suspended on the suspension rod, so that the position and the shape of the vertebra when the human body stands are simulated visually. Fixed rings on the support horizontal segment, with the rings cross-under of jib upper end, the jib can carry out the swing of certain degree from this, makes things convenient for the teacher to incline the jib angle, conveniently teaches.

The side part of the vertebra unit is provided with a thread through hole which penetrates to the central through hole, a pressing screw rod can be screwed into the thread through hole, and the end part of the pressing screw rod is contacted with the outer wall of the suspender. The pressing screw rod positions and fixes the vertebra unit and the sliding rod through the screw thread pressing effect, and the vertebra unit can be prevented from freely sliding up and down after being screwed; when the spinal bone units need to be moved or replaced, the spinal bone units can be loosened by reversely unscrewing the compression screw rods.

And a slip ring is arranged on the inner side wall of the central through hole of the vertebra unit. The slip ring may be made of a material having self-lubrication such as teflon.

The vertebral elements can be divided into normal vertebral elements that mimic normal vertebrae and generally compressed vertebral elements that generally mimic damaged vertebrae. The height of the compressed spinal unit is generally flatter than that of a normal spinal unit, and the situation that a certain segment of the spinal unit is damaged by compression can be simulated.

The vertebra unit can be a burst compression vertebra unit which is composed of a part A and a part B, and the two parts are fixedly connected through holes, bolts and nuts in corresponding positions. The split burst compression vertebral bone units can simulate the vertebral bone units cracked due to damage, in order to enable the A and B cracked units to be connected into a whole and fixed on the sliding rod, the two cracked units are connected by adopting bolts and nuts, and in order to enable a trainee to better visually understand the conditions of each cracked unit, the bolts and the nuts can be loosened, and the two cracked units are separated and observed. The surface of the vertebra unit B is also provided with cracks, and the image shows the condition that the vertebra unit B is subjected to compression fracture.

The vertebral element may be a wedge-shaped compressed vertebral element a or a wedge-shaped compressed vertebral element B, both wedge-shaped compressed vertebral element a and wedge-shaped compressed vertebral element B being wedge-shaped, both penetrating the central through hole of the boom being straight or curved matching the boom. Wedge-compressed spinal element A and wedge-compressed spinal element B may simulate an injured spinal element that is wedge-compressed due to a bias voltage, wedge-compressed spinal element A simulating an injury condition that is early in wedge-compression, when the entire spine has not yet been flexed; after the wedge compression vertebra unit B simulates the state of the whole spinal column after being bent after a period of time, after the flexible suspender penetrates into the central through hole of the wedge compression vertebra unit, the penetrating section of the flexible suspender is bent, and the whole spinal column is simulated to be bent integrally due to wedge injury of the spinal column.

The lower end of the suspender is provided with a limiting bead. The limiting beads can be screwed up and fixed at the lower end of the sliding rod through threads, and when the limiting beads are screwed up, the spine bone unit can be prevented from falling off from the lower part of the sliding rod. When the vertebra units need to be replaced, the limiting beads are unscrewed, and the vertebra units can be taken out one by one from the lower part of the sliding rod.

The utility model has the advantages that:

1. the condition simulation of human vertebra injury can be carried out, so that visual impression can be generated for a taught person, the learning efficiency is improved, and the understanding is deepened; this teaching aid can simulate the vertebra injury of various condition: including general spinal compression injury, spinal fracture injury, and spinal wedge compression injury.

2. The utility model discloses the teaching aid is sturdy and durable, and convenient operation carries and operates conveniently.

Description of the drawings:

FIG. 1 is a schematic view of the outer structure of embodiment 1;

FIG. 2 is a top view of a normal spinal unit or a general compressed spinal unit;

FIG. 3 is a schematic structural view of the embodiment 2;

FIG. 4 is a top view schematic of the burst compression spinal unit;

FIG. 5 is a schematic structural view of the embodiment 3; (wedge-shaped compression vertebra unit A)

FIG. 6 is a schematic view of the outer structure of embodiment 3; (wedge-shaped compression vertebra unit B)

The serial numbers and component names in the figures are: 1. a base; 2. a support frame; 3. a boom; 4. a limiting bead; 5. a normal spinal unit; 61. generally compressing the spinal unit; 62. bursting the compressed spinal unit; 63. wedge-compressing spinal unit a; 64. wedge-compressing the spinal unit B; 7. pressing and screwing the rod; 8. a nut; 9. a screw; 10. and a slip ring.

Detailed Description

Example 1

For simulating spinal compression injury, as shown in figures 1 and 2:

a teaching aid for simulating human spine compression and fracture is characterized in that a support frame 2 is fixed on a base 1, the horizontal section of the support frame 2 is connected with the upper end of a suspender 3, and a plurality of vertebra units can be penetrated and fixed on the suspender 3.

The side part of the vertebra unit is provided with a threaded through hole which penetrates to the central through hole, a pressing screw rod 7 can be screwed into the threaded through hole, and the end part of the pressing screw rod 7 is contacted with the outer wall of the suspender 3.

The inner side wall of the central through hole of the vertebra unit is provided with a slip ring 10.

The vertebral bone units may be divided into a normal vertebral bone unit 5 and a general compression vertebral bone unit 61, wherein the normal vertebral bone unit 5 simulates normal vertebral bone and the general compression vertebral bone unit 61 generally compresses simulated injured vertebral bone.

The lower end of the suspender 3 is provided with a limiting bead 4.

Example 2

For use in the case of a spinal compression fracture injury, as shown in figures 3 and 4:

One of the vertebra units can be a burst compression vertebra unit 62, the other vertebra units are normal vertebra units 5, the burst compression vertebra unit 62 is composed of a part A and a part B, and the adjacent parts are fixed in a penetrating mode through holes, bolts and nuts in corresponding positions.

The lower end of the suspender 3 is provided with a limiting bead 4.

Example 3

For simulating spinal biased wedge deformity injury, as shown in figures 5 and 6:

One of the spinal units may be wedge-shaped compressed spinal unit a63 or wedge-shaped compressed spinal unit B64, the other unit may be normal spinal unit 5, and both of wedge-shaped compressed spinal unit a63 and wedge-shaped compressed spinal unit B64 are wedge-shaped, and both are inserted into the central through-hole of the suspension rod 3 to be straight or curved holes matching with the suspension rod 3.

The lower end of the suspender 3 is provided with a limiting bead 4.

Claims

1. The utility model provides a human backbone compression and fracture teaching aid that bursts which characterized in that: a supporting frame (2) is fixed on a base (1), the horizontal section of the supporting frame (2) is connected with the upper end of a suspender (3), and a plurality of vertebra units can be penetrated and fixed on the suspender (3).

2. The human spinal column compression and burst fracture teaching aid of claim 1, which is characterized in that: the side part of the vertebra unit is provided with a threaded through hole which penetrates through the central through hole, a compression screw rod (7) can be screwed into the threaded through hole, and the end part of the compression screw rod (7) is in contact with the outer wall of the suspender (3).

3. The human spinal column compression and burst fracture teaching aid of claim 1, which is characterized in that: and a slip ring (10) is arranged on the inner side wall of the central through hole of the vertebra unit.

4. The human spinal column compression and burst fracture teaching aid of claim 1, which is characterized in that: the vertebral elements may be divided into a normal vertebral element (5) and a general compression vertebral element (61), wherein the normal vertebral element (5) simulates normal vertebra and the general compression vertebral element (61) simulates damaged vertebra.

5. The human spinal column compression and burst fracture teaching aid of claim 4, which is characterized in that: the vertebra unit can be a burst compression vertebra unit (62), the burst compression vertebra unit (62) is composed of a part A and a part B, and the two parts are fixedly connected in a penetrating mode through corresponding through holes, bolts and nuts.

6. The human spinal column compression and burst fracture teaching aid of claim 1, which is characterized in that: the suspender (3) is made of flexible rubber or silica gel.

7. The human spinal column compression and burst fracture teaching aid of claim 1, which is characterized in that: the vertebral element may be a wedge-shaped compressed vertebral element A (63) or a wedge-shaped compressed vertebral element B (64), both wedge-shaped compressed vertebral element A (63) and wedge-shaped compressed vertebral element B (64) being wedge-shaped, the central through hole through both the penetrating boom (3) being a straight hole or a curved hole matching the boom (3).

8. The human spinal column compression and burst fracture teaching aid of claim 1, which is characterized in that: the lower end of the suspender (3) is provided with a limiting bead (4).