Education and demonstration – Anatomy – physiology – therapeutic treatment – or surgery... – Anatomical representation
Patent
1986-10-14
1989-02-07
Scherbel, David A.
Education and demonstration
Anatomy, physiology, therapeutic treatment, or surgery...
Anatomical representation
G09B 2332
Patent
active
048028584
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a device for teaching treatment of a skeleton injury, said device comprising one or more artificial parts of the body which are provided with one or more places of injury.
BACKGROUND OF THE INVENTION
A device of the kind mentioned above is previously known from Swedish Pat. No. 7908218-6 (U.S. Pat. No. 4,350,490). However, this known device has a plurality of disadvantages. Thus, the place of injury of the known device cannot be locked, i.e. the artifical part of the body cannot be made stiff in the region of the place of injury . As the device of the present invention preferably consists of an artificial part of the body with at least two places of injury, it is advantageous that the place of injury not being used can be locked, i.e. the part of the body can be made stiff in the region of said place of injury.
Another disadvantage of the known device is that the means simulating muscles in the region of the place of injury are not adjustable in respect of the function of the muscles when the parts of the body on both sides of the place of injury are reciprocally skewed.
The known device has also a drawback in that it lacks the ability, in a simulated fractured leg, to permit turning of the parts located on both sides of the place of injury relative to each other in the longitudinal direction of the part of the body.
It is the object of this invention to present a device which can simulate in a way as lifelike as possible a skeleton fracture of a part of the body as far as the movability of the parts located on both sides of the place of injury relative to each other is concerned. Moreover, it must be possible to lock the places of injury not used in connection with the current teaching, i.e. it must be possible to make the part of the body stiff in the region of the place of injury.
BRIEF DESCRIPTION OF THE DRAWINGS
An illustrative example of a device according to the invention will be described below with reference to the enclosed drawings, in which
FIG. 1 shows a leg dummy with two artificial places of injury,
FIG. 2 shows a detail of a place of injury in a stiff state, and
FIG. 3 shows a detail of a place on injury where a fracture of the artificial part of the body has been simulated.
The leg dummy 1 shown in FIG. 1 consists of two main parts, viz a lower leg part 2 and a thigh-bone part 3.
DETAILED DESCRIPTION
The lower leg part 2 has an upper portion 4 and a lower portion 5 which are made of foamed shape permanent plastic. Between said portions 4, 5 there is arranged a portion 6 of a non-rigid foamed plastic. In each of the portions 4 and 5 a bone-simulating member such as a pipe 7 and 8, respectively, are cast which connect to each other within the portion 6 of non-rigid foamed plastic, said connection being the artificial place of fracture which will be described below more in detail with reference to FIGS. 2 and 3.
In a manner corresponding to the lower leg part 2 the thigh-bone part has an upper portion 9 and a lower portion 10 which are also made of a foamed shape permanent plastic. A connecting portion 11 of non-rigid foamed plastic is disposed between these portions. In each of the upper and lower portions 9 and 10 pipes 12 and 13, respectively, are cast which connect to each other within the connecting portion 11, said connection being made in a manner corresponding to that which will be described more in detail with reference to FIGS. 2 and 3.
As is apparent from FIG. 1 the pipes 7 and 13 are stretched to each other by a joint 14 which, thus, forms the knee-joint of the leg dummy 1 according to the invention.
The build-up of the artificial place of fracture is apparent more in detail from the lower leg part 2 shown in FIG. 2. As is evident from FIG. 2 the pipe 8 is provided with an external thread 15 at its upper end which, thus, is located within the connecting portion 6, an internally threaded sleeve 16 being arranged on said thread 15. The pipe 7 which, thus, is cast in the upper portion 4 has at its lower end a fixed collar 17 which has a larger inside
REFERENCES:
patent: 906566 (1908-12-01), Scherf
patent: 1322733 (1919-11-01), Cone
patent: 1348216 (1920-08-01), Giebeler-Wanke
patent: 2781611 (1957-02-01), Bills et al.
patent: 3895451 (1975-07-01), Smrcka
patent: 4350490 (1982-09-01), Sandeg.ang.rd
patent: 4488433 (1984-12-01), Denton et al.
patent: 4605373 (1986-08-01), Rosen
Lindskog Kjell
Sandegard Jan
Dennison Caroline D.
Procare AB
Scherbel David A.
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