CN211427695U

CN211427695U - OSCE examination patient model

Info

Publication number: CN211427695U
Application number: CN202020449154.XU
Authority: CN
Inventors: 侯诚
Original assignee: FIRST PEOPLE'S HOSPITAL OF TAICANG
Current assignee: FIRST PEOPLE'S HOSPITAL OF TAICANG
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-09-04
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses an OSCE examination patient model belongs to the model field for the medical science. In the device, a blood pump simulates the pulsation of blood, and the simulated limb is made of flesh-colored silica gel; the blood vessel is paved in a simulated limb according to a human body venous blood vessel model and forms a loop, a thin film piezoelectric sensor is fixed on the blood vessel wall on one side far away from the nearest epidermis, a processor and a display are fixedly connected to a blood pump, the thin film piezoelectric sensor is connected to the processor through a sensing line signal, the display is connected with the processor through a signal, the blood vessel wall is tubular, a blood cavity is formed in the middle of the blood cavity, and two ends of the blood cavity are respectively communicated to the input end and the output end of the blood pump; during examination, if a testee pricks a needle to a deviated or shallow depth, blood backflow, which is a typical phenomenon in intravenous injection, cannot be observed, if the testee pricks the needle to a deep depth, the thin film piezoelectric sensor is touched and transmits a signal to the processor, and the processor sends out the signal and records the number of errors of the testee.

Description

OSCE examination patient model

Technical Field

The utility model relates to a model field for the medical science, in particular to patient's model in OSCE examination.

Background

OSCE is globally called objective structured clinical practice, the objective structured clinical test. It is a method for examining clinical competence, and the clinical competence of examinees is evaluated by medical institutions and licences in many countries and regions at present.

In an OSCE examination, a human body model is usually required to be applied, intravenous injection is one of the most common medical drug delivery means, whether intravenous injection is successful or not is usually hidden under the epidermis, whether a needle penetrates vein injection elements such as a simulated blood vessel wall and the like during injection of a participant is difficult to directly judge, the model in the prior art cannot directly feed back corresponding elements according to the actual operation of an operator, the subjective factor of a person is large, and therefore an OSCE examination patient model capable of feeding back the operation of the operator is required.

SUMMERY OF THE UTILITY MODEL

The utility model provides an OSCE examination patient model can solve the problem that the model that exists generally can't give the direct feedback of corresponding key element according to operator's actual operation among the prior art.

An OSCE exam patient model comprising a blood pump, a simulated blood vessel, a display, and a simulated limb, wherein:

the blood pump simulates the pulsation of blood, and the simulated limb is made of a flesh-colored silica gel material;

the simulated blood vessel is laid in the simulation limb according to the actual venous blood vessel distribution of the human body, and a loop is formed, the simulated blood vessel comprises a sensing line, a processor, a film piezoelectric sensor and a simulated blood vessel wall, the film piezoelectric sensor is fixed to the side away from the nearest epidermis, on the simulated blood vessel wall, the processor is fixedly connected to the blood pump, the film piezoelectric sensor passes through the sensing line signal connection to the processor, the display is connected to the processor signal, the simulated blood vessel wall is tubular, a blood cavity is formed in the middle, and the two ends of the blood cavity are respectively communicated to the input end and the output end of the blood pump.

Preferably, the blood pump comprises a detector, the detector comprises a backflow connector and a gas cylinder, one end of the backflow connector is communicated with the input end of the blood pump, the other end of the backflow connector is communicated with the blood cavity, the gas cylinder is made of transparent materials, a bottle opening of the gas cylinder is communicated with the backflow connector, the gas cylinder is in threaded connection with the backflow connector, and scales are engraved on the gas cylinder.

Preferably, the simulated vessel wall is a novel self-repairing rubber material.

Preferably, the test tube further comprises a sleeve nozzle, the sleeve nozzle comprises an upper sleeve, a lower sleeve, a pressure shell, a plug, a boss, a spring, a liquid collecting bottle and an adjusting handle, the upper sleeve is communicated with an inner cavity of the lower sleeve, the inner diameter of the upper sleeve is in interference fit with a nipple of an injector for an examination, the outer diameter of the lower sleeve is in interference fit with a pintle of a matched needle head, the pressure shell penetrates through the inner cavity of the upper sleeve from the side face, the boss is arranged in the inner cavity of the pressure shell, the plug is used for plugging a gap remained by the boss, two sides of the boss are divided into a first cavity and a second cavity, the spring is located in the second cavity, one end of the spring is abutted to the plug, the other end of the spring is abutted to the adjusting handle, one end of the adjusting handle penetrates through the outer side of the pressure shell, the adjusting handle is in threaded connection with the pressure shell, and the liquid collecting bottle is, the bottle mouth of the liquid collecting bottle is communicated with the second cavity, the liquid collecting bottle is in threaded connection with the pressure shell, the liquid collecting bottle is made of transparent materials, and scales are carved on the liquid collecting bottle.

Preferably, the gap that the boss stayed is round platform form, and is close to the one end in second chamber is the main aspects, the end cap is the diameter and is in the ball between round platform form gap small-end diameter and main aspects diameter.

Preferably, the gas cylinder is made of transparent hard silica gel material.

Preferably, the liquid collecting bottle is made of transparent hard silica gel material.

Has the advantages that: the utility model provides a pair of OSCE examination patient model, during the examination, will the blood pump is opened, lets the blood chamber is full of emulation blood, and the human vein of simulation flows, and the truest intravenous route condition of reduction, if prick partially or the degree of depth is too shallow with the syringe needle by the testee, then can't observe typical phenomenon-blood backward flow when intravenous route, if prick the syringe needle by the testee deeply, then can touch film piezoelectric sensor to with signal transmission extremely the treater, the treater signals, the display count adds one, records the testee number of times of failure.

Drawings

Fig. 1 is a schematic structural diagram of an OSCE examination patient model provided by the present invention;

FIG. 2 is a control diagram of an OSCE examination patient model provided by the present invention;

FIG. 3 is a schematic view of the simulated vascular structure of FIG. 1;

FIG. 4 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 5 is a schematic structural diagram of a mouthpiece of an OSCE examination patient model provided by the present invention;

fig. 6 is a schematic view of the installation and use of fig. 5.

Description of reference numerals:

1-blood pump, 2-simulated blood vessel, 21-sensing line, 22-processor, 23-thin film piezoelectric sensor, 24-simulated blood vessel wall, 25-blood chamber, 3-simulated limb, 4-detector, 41-backflow interface, 42-gas cylinder, 5-sleeve nozzle, 51-upper sleeve, 52-lower sleeve, 53-pressure shell, 531-first chamber, 532-second chamber, 54-plug, 55-boss, 56-spring, 57-liquid collecting bottle, 58-adjusting handle and 6-display.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

Specific example 1:

as shown in fig. 1 to fig. 3, an OSCE examination patient model provided in the embodiment of the present invention includes a blood pump 1, a simulated blood vessel 2, a display 6, and a simulated limb 3, wherein:

the blood pump 1 simulates the pulsation of blood, the simulated limb 3 is made of meat-colored silica gel, opaque silica gel can better check a subject, and the meat-colored simulated limb 3 can restore a real scene to the maximum extent;

the simulated blood vessel 2 is laid in the simulated limb 3 according to the actual vein distribution of the human body and forms a loop, after the common vein is laid according to the actual vein distribution of the human body, a plurality of veins are connected in series to form a single loop, the simulated blood vessel 2 comprises a sensing wire 21, a processor 22, a thin film piezoelectric sensor 23 and a simulated blood vessel wall 24, the simulated blood vessel wall 24 is a novel self-repairing rubber material, the self-repairing material does not need external stimulation, the material capable of self-repairing at normal temperature, such as urea-urethane polymeric material, greatly prolongs the service life of the simulated blood vessel, the thin film piezoelectric sensor 23 is fixed on the simulated blood vessel wall 24 far away from one side closest to the epidermis, and for the operation of a subject, the area of the simulated blood vessel wall 24 coated by the thin film piezoelectric sensor 23 is smaller than one half of the area of the outer side wall of the simulated blood vessel wall 24, when a subject pricks a vein, the misjudgment caused by touching the film piezoelectric sensor 23 is avoided, the processor 22 and the display 6 are fixedly connected to the outer side wall of the blood pump 1, the film piezoelectric sensor 23 is in signal connection with the processor 22 through the sensing wire 21, the display 6 is in signal connection with the processor 22 and is used for receiving and displaying the signal of the film piezoelectric sensor 23, the simulated blood vessel wall 24 is in a tubular shape, a blood cavity 25 is formed in the middle, and two ends of the blood cavity 25 are respectively communicated with the input end and the output end of the blood pump 1;

the specific working process is as follows: when the test device is used, the blood pump 1 is opened, the blood cavity 25 is filled with simulated blood, the venous flow of a human body is simulated, the truest intravenous injection condition is restored, the sleeve nozzle 5 is installed on the test injector before the test, the needle head is installed on the sleeve nozzle 5, and a testee performs intravenous injection test on the simulated limb 3

If the needle is pricked to a certain depth, the patient will not observe the blood reflux, which is the typical phenomenon in intravenous injection, if the needle is pricked too deep, the patient will touch the thin film piezoelectric sensor 23 and transmit the signal to the processor 22, the processor 22 sends out the signal, the display 6 counts up one, records the number of times of the error of the patient,

specific example 2:

in embodiment 1, in addition to determining whether the subject pierces the simulated blood vessel wall, whether the subject exhausts clean air before injection is also one of the key factors, and the common method is that the needle head is moved upward to push the piston rod of the syringe to expel a part of the liquid medicine for air evacuation, but in order to prevent unnecessary dispute between the subject and the examinee, a device capable of visually seeing the actual effect is required, so on the basis of embodiment 1, as shown in fig. 4, the embodiment further includes a detector 4, the detector 4 includes a backflow port 41 and a gas cylinder 42, one end of the backflow port 41 penetrates through to the input end of the blood pump 1, the other end penetrates through to the blood cavity 25, the gas cylinder 42 is made of transparent hard silica gel material, the silica gel has good plasticity, is not easy to damage, and is safe and non-toxic, the opening of the gas cylinder 42 penetrates through to the backflow port 41, the gas cylinder 42 is in threaded connection with the, is used for collecting and displaying the content of the air in the blood cavity 25, and judging whether the subject is qualified or not according to the content;

the specific working process is as follows: if the subject fails to completely empty the air before intravenous injection, the detector 4, which is originally filled with the simulated blood, collects air bubbles, and whether the subject is qualified can be determined according to the collected specific air content.

Specific example 3:

in embodiment 1, in addition to determining whether a candidate pierces a simulated blood vessel wall, the drug delivery speed of the candidate during injection is one of important factors, too high injection may cause too high concentration of the drug solution, which may bring various negative effects to the health of the injected person, and the naked eye determination error of the injection speed of the candidate is large, so a more intuitive determination method is required, therefore, on the basis of embodiment 1, as shown in fig. 5 and 6, the present embodiment further includes a mouthpiece 5, the mouthpiece 5 includes an upper sleeve 51, a lower sleeve 52, a pressure shell 53, a plug 54, a boss 55, a spring 56, a liquid collecting bottle 57 and an adjusting handle 58, the upper sleeve 51 is communicated with the inner cavity of the lower sleeve 52, the inner diameter of the upper sleeve 51 is in interference fit with a nipple of an injector for examination, thereby preventing the mouthpiece 5 from loosening, and the outer diameter of the lower sleeve 52 is in interference fit with a pintle of the needle to prevent the needle from loosening, the pressure shell 53 penetrates through the inner cavity of the upper sleeve 51 from the side, the inner cavity of the pressure shell 53 is provided with a boss 55, a plug 54 is used for plugging a gap left by the boss 55, two sides of the boss 55 are divided into a first cavity 531 and a second cavity 532, the gap left by the boss 55 is in a circular truncated cone shape, one end close to the second cavity 532 is a large end, the plug 54 is a round ball with the diameter between the diameter of the small end and the diameter of the large end of the circular truncated cone-shaped gap, a spring 56 is positioned in the second cavity 532, one end of the spring 56 props against the plug 54, the other end props against an adjusting handle 58 for judging injection pressure, so as to judge whether the medicine feeding speed of a subject is proper or not, one end of the adjusting handle 58 penetrates through the outer side of the pressure shell 53, the adjusting handle 58 is in threaded connection with the pressure shell 53, the pressure threshold can be adjusted according to actual simulation conditions, the liquid collecting bottle 57 is in threaded connection with the pressure shell 53, the liquid collecting bottle 57 is made of transparent hard silica gel materials, scales are marked on the liquid collecting bottle 57 and used for collecting liquid overflowing due to the fact that injection pressure exceeds a threshold value, and therefore whether a test subject is qualified or not is judged.

The specific working process is as follows: if intravenous injection, the tested person is too fast to deliver the medicine, the medicine delivery pressure is increased to exceed the preset pressure threshold, the plug 54 is pushed, the first cavity 531 and the second cavity 532 are communicated, the injection liquid flows into the liquid collecting bottle 57, whether the tested person is qualified or not can be judged according to the collected specific injection liquid content, the preset threshold can be adjusted by adjusting the handle 58, different scenes can be simulated, and the test is more diversified.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims

1. The utility model provides an OSCE examination patient model, includes blood pump (1) and emulation limbs (3), the pulsation of blood is simulated in blood pump (1), emulation limbs (3) are flesh color silica gel material, its characterized in that, including simulation blood vessel (2) and display (6), wherein:

the inside of the simulated blood vessel (2) is laid in the simulated limb (3) according to a human body vein blood vessel model, and forming a loop, the simulated blood vessel (2) comprises a sensing wire (21), a processor (22), a thin film piezoelectric sensor (23) and a simulated blood vessel wall (24), the thin-film piezoelectric sensor (23) is fixed to the simulated blood vessel wall (24) on the side away from the nearest epidermis, the processor (22) and the display (6) are fixedly connected to the blood pump (1), the thin film piezoelectric sensor (23) is connected to the processor (22) through the sensing line (21) signal, the display (6) is in signal connection with the processor (22), the simulated vessel wall (24) is tubular, a blood cavity (25) is formed in the middle, the two ends of the blood cavity (25) are respectively communicated to the input end and the output end of the blood pump (1).

2. The OSCE examination patient model as claimed in claim 1, comprising a detector (4), wherein the detector (4) comprises a backflow port (41) and a gas cylinder (42), one end of the backflow port (41) is communicated to the input end of the blood pump (1), the other end of the backflow port is communicated to the blood cavity (25), the gas cylinder (42) is made of transparent material, the opening of the gas cylinder (42) is communicated to the backflow port (41), the gas cylinder (42) is in threaded connection with the backflow port (41), and scales are carved on the gas cylinder (42).

3. An OSCE examination patient model as claimed in claim 1, characterized in that said simulated vessel wall (24) is of a new self-repairing rubber material.

4. An OSCE examination patient model as claimed in claim 1, further comprising a mouthpiece (5), wherein the mouthpiece (5) comprises an upper sleeve (51), a lower sleeve (52), a pressure shell (53), a stopper (54), a boss (55), a spring (56), a liquid bottle (57) and an adjusting handle (58), the upper sleeve (51) is communicated with the inner cavity of the lower sleeve (52), the inner diameter of the upper sleeve (51) is in interference fit with the nipple of the syringe for examination, the outer diameter of the lower sleeve (52) is in interference fit with the pintle of the matching needle, the pressure shell (53) laterally penetrates to the inner cavity of the upper sleeve (51), the inner cavity of the pressure shell (53) is provided with the boss (55), the stopper (54) is used for blocking the gap left by the boss (55), and the two sides of the boss (55) are divided into a first cavity (531) and a second cavity (532), the spring (56) is located the second cavity (532), one end of the spring (56) is abutted to the plug (54), the other end of the spring (56) is abutted to the adjusting handle (58), one end of the adjusting handle (58) penetrates through the outer side of the pressure shell (53), the adjusting handle (58) is in threaded connection with the pressure shell (53), the liquid collecting bottle (57) is located on the lower side of the pressure shell (53), a bottle opening of the liquid collecting bottle (57) penetrates through the second cavity (532), the liquid collecting bottle (57) is in threaded connection with the pressure shell (53), the liquid collecting bottle (57) is made of transparent materials, and scales are carved on the liquid collecting bottle (57).

5. The OSCE examination patient model of claim 4, wherein the gap left by the boss (55) is truncated cone-shaped, and the end near the second cavity (532) is a large end, and the plug (54) is a round ball with a diameter between the diameter of the small end and the diameter of the large end of the truncated cone-shaped gap.

6. An OSCE examination patient model according to claim 2, characterized in that said gas cylinder (42) is of transparent hard silica material.

7. An OSCE examination patient model according to claim 4, characterized in that the liquid collecting bottle (57) is of transparent hard silicone material.