CN220604213U

CN220604213U - Venous blood sampling exercise model

Info

Publication number: CN220604213U
Application number: CN202322281854.9U
Authority: CN
Inventors: 王冠杰; 黄新; 闫媛; 孙宏; 陆莎; 吴娟; 霍敏; 姜雯; 白洁; 杜旭升
Original assignee: Xi'an central hospital
Current assignee: Xi'an central hospital
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2024-03-15
Anticipated expiration: 2033-08-24

Abstract

The utility model provides a vein blood sampling exercise model, wherein a model body comprises a rubber inner layer, a sponge middle layer and a rubber outer layer from inside to outside, wherein the rubber inner layer is provided with a simulated blood vessel; the outer side of the model body is provided with a simulated blood storage box and a miniature liquid circulating pump, the liquid outlet end of the blood storage box is communicated with the liquid inlet end of the miniature liquid circulating pump through a pipeline, the liquid outlet end of the miniature liquid circulating pump is communicated with the near-center end of a simulated blood vessel through a first hose, and the liquid inlet end of the blood storage box is communicated with the far-center end of the simulated blood vessel through a second hose; the upper end of the model body near the center end is provided with a push type trigger switch, and the push type trigger switch is electrically connected with the miniature liquid circulating pump through a lead. The operation of binding the tourniquet can increase the blood pressure and the flow velocity in the simulated blood vessel, has similar effect as the operation of binding the tourniquet in the real blood sampling operation, and can lead the blood to enter the puncture tube quickly after successful puncture, thereby improving the operational sense of reality of the model and improving the experience of students.

Description

Venous blood sampling exercise model

Technical Field

The utility model belongs to the field of medical teaching aids, and particularly relates to a venous blood sampling exercise model.

Background

The clinical skill teaching is an important component in the medical education system engineering, the clinical simulation teaching is implemented by means of the medical simulation model, the training room is constructed into a simulated medical environment, clinical diagnosis and treatment situations of various clinical departments are simulated, the health and privacy of clinical patients are maintained, a teaching scheme is designed according to clinical common problems, and the practical opportunity of medical students is increased. Venous blood collection is a basic operation of medical school nursing profession, although the operation is not complicated in procedure, the operation is not easy to achieve a certain proficiency degree, and because the medical simulation model has higher fault tolerance, students can overcome tension emotion during skill operation, and through repeated exercise, the memory of the operation process is enhanced, skill operation techniques are standardized, so that the aim of proficiently mastering relevant clinical skills is fulfilled.

The current intravenous blood sampling exercise model can only perform single puncture exercise, has larger difference from the actual blood sampling operation in operation, and mainly comprises the following aspects: firstly, the existing vein blood sampling exercise model cannot simulate a real blood sampling flow from a tourniquet, and a blood circulation pump needs to be manually started in advance to start vein blood circulation, so that the model does not accord with the real blood sampling operation; secondly, when blood is collected, the cushion block is required to be placed at the lower end of the model to enable the model to incline to one side of a human body, so that the actual blood collection operation can be met, and the operation is troublesome.

In view of the foregoing, there is a need to design a model for intravenous blood sampling exercise that overcomes the above-mentioned problems.

Disclosure of Invention

The object of the present utility model is to provide a model for intravenous blood sampling exercise that overcomes the above problems.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a model of venous blood collection exercise comprising:

a model body which can be sleeved on the arm of a human body;

the model body sequentially comprises a rubber inner layer, a sponge middle layer and a rubber outer layer from inside to outside, wherein the rubber inner layer is provided with a simulated blood vessel arranged along the length direction of the model body;

the outer side of the model body is provided with a simulated blood storage box and a miniature liquid circulating pump, the liquid outlet end of the blood storage box is communicated with the liquid inlet end of the miniature liquid circulating pump through a pipeline, the liquid outlet end of the miniature liquid circulating pump is communicated with the near-center end of the simulated blood vessel through a first hose, and the liquid inlet end of the blood storage box is communicated with the far-center end of the simulated blood vessel through a second hose;

the upper end of the near-center end of the model body is provided with a push type trigger switch, and the push type trigger switch is electrically connected with the miniature liquid circulating pump through a lead;

the lower extreme of the nearly heart end of model body can be dismantled and is connected with the supporting shoe.

The aim and the technical problems of the utility model can be further realized by adopting the following technical measures.

Further, the push type trigger switch comprises an insulating box body arranged in the rubber inner layer, a negative electrode conductor arranged in the insulating box body in a vertically sliding manner, a positive electrode conductor fixed at the bottom in the insulating box body, and a compression rod inserted into the upper end of the insulating box body and penetrating out of the upper end of the model body, wherein a reset spring is sleeved on the outer wall of the compression rod, and two ends of the reset spring are fixedly connected with the negative electrode conductor and the inner top wall of the insulating box body respectively;

the positive electrode conductor is electrically connected with the positive electrode end of the storage battery arranged in the rubber inner layer through the positive electrode conductive connector, and the negative electrode conductor is electrically connected with the negative electrode end of the storage battery through the negative electrode conductive connector.

Further, the upper end of depression bar is equipped with the briquetting, the upper end of briquetting is followed the width direction of model body has seted up the arc recess.

Further, the first hose and the second hose are provided with check valves with opposite directions inside.

Further, a plurality of branch simulated blood vessels are arranged on the simulated blood vessel.

Further, the lower extreme of the nearly heart end of model body is equipped with the slotting, the both sides of slotting are equipped with multiunit first fixed band and second fixed band respectively, be equipped with the magic subsides that mutually matches on first fixed band and the second fixed band respectively and collude face and the magic subsides matte.

Further, the upper end of the supporting block is arc-shaped matched with the model body, flexible fixing pieces are respectively arranged on two sides of the supporting block, and the flexible fixing pieces are respectively adhered to two sides of the model body through magic tapes.

Further, the supporting block is of a box body structure, and one side of the supporting block is provided with a cover plate capable of being opened and closed.

Further, the lower end of the distal end of the model body is adhered with a wrist pad through a magic tape.

Further, the model body is of a sleeve structure matched with the shape of the arm.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the venous blood sampling exercise model, the model body is of a structure capable of being sleeved on the arms of a human body, so that students can conveniently wear the model body on the arms for students to exercise, the model is more visual, and the model has an immersive operation experience sense; the blood pressure and the flow velocity in the simulated blood vessel can be increased after the miniature liquid circulating pump is started, and the push type trigger switch is arranged at the upper end of the near-heart end of the model body, so that the push type trigger switch can be pushed down to trigger through the binding tourniquet, the miniature liquid circulating pump is started to realize the effect of increasing the blood pressure in the simulated blood vessel and accelerating the flow velocity of the blood, the operation of the binding tourniquet is set as the necessary operation to start, the blood pressure and the flow velocity in the simulated blood vessel can be increased through the operation of the binding tourniquet, the effect of the operation of the binding tourniquet is similar to that of the real blood sampling operation, blood can quickly enter the puncture tube after puncture is successful, the operational sense of the model is improved, and students have the operation sense of being in the scene when operating the model.

2. According to the venous blood sampling exercise model, the supporting block is detachably connected to the lower end of the proximal end of the model body, so that the proximal end of the model body can be inclined to one side of a human body, the operation requirement of actual blood sampling operation is met, blood sampling of students is facilitated, the operation process is more real, and the experience of the students is improved.

3. According to the venous blood sampling exercise model, the wrist pad is arranged at the lower end of the distal end of the model body, so that the wrist of a student wearing the model body can be supported conveniently, and the student is more comfortable.

4. According to the venous blood sampling exercise model, the supporting blocks are arranged to be of the box body structure, so that objects required by blood sampling such as tourniquets and cotton swabs can be stored conveniently.

Drawings

FIG. 1 is a schematic view of the overall structure of a model for training venous blood collection provided by the utility model;

FIG. 2 is a right side view of the intravenous blood collection exercise model provided by the present utility model at the knob;

FIG. 3 is a schematic cross-sectional view of a push-type trigger switch according to an embodiment of the present utility model;

reference numerals illustrate:

1. a model body; 11. a rubber inner layer; 12. a sponge intermediate layer; 13. a rubber outer layer; 14. slotting; 15. a first fixing strap; 151. hook-on surface of the magic tape; 16. a second fixing strap; 161. a magic tape suede;

2. simulating a blood vessel; 21. branching to simulate a blood vessel;

3. a simulated blood storage cassette; 31. a second hose; 32. a one-way valve;

4. a micro liquid circulation pump; 41. a pipe; 42. a first hose; 43. a wire;

5. a push-type trigger switch; 51. an insulating case; 52. a negative electrode conductor; 53. a positive electrode conductor; 54. a compression bar; 55. a return spring; 56. a positive electrode conductive connection body; 57. a negative electrode conductive connector; 58. briquetting; 59. an arc-shaped groove;

6. a support block; 61. a flexible fixing piece; 62. a cover plate;

7. a storage battery;

8. a wrist pad.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 3, an exercise model for venous blood collection includes:

a model body 1 which can be sleeved on the arm of a human body; the student wearing the arm support device is convenient for students to practice, is more visual, and has the feeling of being in the presence of operation experience;

the model body 1 sequentially comprises a rubber inner layer 11, a sponge middle layer 12 and a rubber outer layer 13 from inside to outside, wherein the rubber inner layer 11 is provided with a simulated blood vessel 2 arranged along the length direction of the model body 1; the rubber inner layer 11 is contacted with human skin more closely, and the comfort level is high; the sponge interlayer 12 is filled between the fixed rubber inner layer 11 and the rubber outer layer 13 and can fix the inner parts thereof; the rubber outer layer 13 is more similar to the skin of a human body, so that puncture is facilitated; the simulated blood vessel 2 is made of silica gel or rubber, so that puncture is facilitated;

the outside of the model body 1 is provided with a simulated blood storage box 3 and a miniature liquid circulating pump 4, the liquid outlet end of the blood storage box 3 is communicated with the liquid inlet end of the miniature liquid circulating pump 4 through a pipeline 41, the liquid outlet end of the miniature liquid circulating pump 4 is communicated with the near-center end of the simulated blood vessel 2 through a first hose 42, and the liquid inlet end of the blood storage box 3 is communicated with the telecentric end of the simulated blood vessel 2 through a second hose 31;

the upper end of the near-center end of the model body 1 is provided with a push type trigger switch 5, and the push type trigger switch 5 is electrically connected with the miniature liquid circulating pump 4 through a lead 43;

specifically, the simulated blood storage box 3, the miniature liquid circulating pump 4 and the simulated blood vessel 2 are sequentially communicated to form a loop, the miniature liquid circulating pump 4 can increase the blood pressure and the flow rate in the simulated blood vessel 2 after being started, and the push type trigger switch 5 is arranged at the upper end of the near-heart end of the model body 1, so that the push type trigger switch 5 can be pushed down to trigger by the binding tourniquet, the miniature liquid circulating pump 4 is started to realize the functions of increasing the blood pressure in the simulated blood vessel 2 and accelerating the flow rate of the blood, the operation of the binding tourniquet is set as the necessary operation to start, and the blood pressure and the flow rate in the simulated blood vessel 2 can be increased by the operation of the binding tourniquet, so that the effect of the operation of the binding tourniquet is similar to that of the operation of the binding tourniquet in the real blood sampling operation, blood can quickly enter the puncture tube after puncture is successful, the operational realism of the model is improved, and students have the realistic operation sense when operating the model;

the lower end of the proximal end of the model body 1 is detachably connected with a supporting block 6. The model body 1 can be inclined to one side of a human body by raising the support pad at the near-center end of the model body 1, so that the operation requirement of actual blood sampling operation is met, the blood sampling of students is facilitated, the operation process is more real, and the experience of the students is improved.

Preferably, the push-type trigger switch 5 includes an insulating box body 51 disposed in the rubber inner layer 11, a negative electrode conductor 52 disposed in the insulating box body 51 in a manner of sliding up and down, a positive electrode conductor 53 fixed at the bottom of the insulating box body 51, and a compression rod 54 inserted into the upper end of the insulating box body 51 and penetrating out of the upper end of the model body 1, wherein a return spring 55 is sleeved on the outer wall of the compression rod 54, and two ends of the return spring 55 are fixedly connected with the negative electrode conductor 52 and the inner top wall of the insulating box body 51 respectively;

the positive electrode conductor 53 is electrically connected to the positive electrode terminal of the battery 7 provided in the rubber inner layer 11 via a positive electrode conductive connector 56, and the negative electrode conductor 52 is electrically connected to the negative electrode terminal of the battery 7 via a negative electrode conductive connector 57.

Specifically, the tourniquet is tied up at the upper end of the compression bar 54, the compression bar 54 drives the negative electrode conductor 52 to move downwards to contact with the positive electrode conductor 53, the butt joint of the positive electrode and the negative electrode of the storage battery 7 is realized, a loop is formed, current is generated, the micro liquid circulating pump 4 is electrified and started, then a blood loop is formed among the simulated blood storage box 3, the micro liquid circulating pump 4 and the simulated blood vessel 2, the simulated blood in the simulated blood vessel 2 generates pressure, and after puncture is successful, the blood directly flows into the puncture tube to realize successful puncture, the structure is ingenious, the sense of reality of simulation operation is improved, and the interestingness is increased.

Preferably, a pressing block 58 is provided at the upper end of the pressing rod 54, and an arc-shaped groove 59 is provided at the upper end of the pressing block 58 along the width direction of the mold body 1. When the tourniquet is bound, the tourniquet can be well positioned only by being bound in the arc-shaped groove 59 at the upper end of the pressing block 58, and the tourniquet is prevented from slipping in operation.

Preferably, the first hose 42 and the second hose 31 are provided with opposite check valves 32 inside. The opening of the check valve 32 in the first hose 42 is directed to the side of the simulated blood storage container 3 so that the simulated blood in the simulated blood vessel 2 can flow only to the side of the simulated blood storage container 3; the one-way valve 32 in the second hose 31 is opened toward the side of the simulated blood vessel 2, so that blood can only flow from the micro-liquid circulation pump 4 to the side of the simulated blood vessel 2;

in order to increase the puncture site, the simulated blood vessel 2 is provided with a plurality of branched simulated blood vessels 21.

Preferably, a slit 14 is provided at the lower end of the proximal end of the model body 1, two sides of the slit 14 are respectively provided with a plurality of groups of first fixing bands 15 and second fixing bands 16, and the first fixing bands 15 and the second fixing bands 16 are respectively provided with a hook-and-loop surface 151 and a hook-and-loop surface 161 which are matched with each other.

Preferably, the upper end of the supporting block 6 is arc-shaped matched with the model body 1, and two sides of the supporting block 6 are respectively provided with a flexible fixing piece 61, and the flexible fixing pieces 61 are respectively adhered to two sides of the model body 1 through velcro. The model body 1 is fixed on the arm through the first fixing belt 15 and the second fixing belt 16, and then the support block 6 is stuck on the lower end of the model body 1 through the flexible fixing sheet 61, so that the whole model is inclined to one side of an operator.

In order to facilitate storage, the supporting block 6 has a box structure, and a cover plate 62 that can be opened and closed is provided on one side of the supporting block. The inside of the supporting block 6 can be provided with a tourniquet, a cotton swab and other objects required for blood collection.

Preferably, the lower end of the distal end of the model body 1 is adhered with a wrist pad 8 through a magic tape, so that the wrist of a student wearing the model body 1 is supported conveniently, and the student is more comfortable.

Preferably, the model body 1 is a sleeve structure matched with the shape of an arm.

The present utility model has been further described with reference to the examples, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides a vein blood sampling exercise model, includes model body (1) that can overlap on human arm, its characterized in that:

the model body (1) sequentially comprises a rubber inner layer (11), a sponge middle layer (12) and a rubber outer layer (13) from inside to outside, wherein a simulated blood vessel (2) arranged along the length direction of the model body (1) is arranged on the rubber inner layer (11);

the model is characterized in that a simulated blood storage box (3) and a miniature liquid circulating pump (4) are arranged on the outer side of the model body (1), the liquid outlet end of the blood storage box (3) is communicated with the liquid inlet end of the miniature liquid circulating pump (4) through a pipeline (41), the liquid outlet end of the miniature liquid circulating pump (4) is communicated with the near-center end of the simulated blood vessel (2) through a first hose (42), and the liquid inlet end of the blood storage box (3) is communicated with the far-center end of the simulated blood vessel (2) through a second hose (31);

the upper end of the near-center end of the model body (1) is provided with a push type trigger switch (5), and the push type trigger switch (5) is electrically connected with the miniature liquid circulating pump (4) through a lead (43);

the lower end of the near-heart end of the model body (1) is detachably connected with a supporting block (6).

2. The model for intravenous blood sampling exercise of claim 1, wherein:

the push type trigger switch (5) comprises an insulating box body (51) arranged in the rubber inner layer (11), a negative electrode conductor (52) arranged in the insulating box body (51) in a vertically sliding mode, a positive electrode conductor (53) fixed at the inner bottom of the insulating box body (51) and a pressing rod (54) inserted into the upper end of the insulating box body (51) and penetrating out of the upper end of the model body (1), a reset spring (55) is sleeved on the outer wall of the pressing rod (54), and two ends of the reset spring (55) are fixedly connected with the negative electrode conductor (52) and the inner top wall of the insulating box body (51) respectively;

the positive electrode conductor (53) is electrically connected to the positive electrode end of the storage battery (7) provided in the rubber inner layer (11) through a positive electrode conductive connector (56), and the negative electrode conductor (52) is electrically connected to the negative electrode end of the storage battery (7) through a negative electrode conductive connector (57).

3. The model for intravenous blood sampling exercise according to claim 2, wherein the upper end of the pressing rod (54) is provided with a pressing block (58), and the upper end of the pressing block (58) is provided with an arc-shaped groove (59) along the width direction of the model body (1).

4. The model of claim 1, wherein the first hose (42) and the second hose (31) are each provided with a one-way valve (32) of opposite direction inside.

5. The model for intravenous blood sampling exercise according to claim 1, wherein a plurality of branched simulated blood vessels (21) are provided on the simulated blood vessel (2).

6. The venous blood sampling exercise model according to claim 2, wherein a slit (14) is formed in the lower end of the proximal end of the model body (1), a plurality of groups of first fixing bands (15) and second fixing bands (16) are respectively arranged on two sides of the slit (14), and a hook-and-loop surface (151) and a hook-and-loop surface (161) which are matched with each other are respectively arranged on the first fixing bands (15) and the second fixing bands (16).

7. The venous blood sampling exercise model according to claim 1, wherein the upper end of the supporting block (6) is arc-shaped matched with the model body (1), flexible fixing sheets (61) are respectively arranged on two sides of the supporting block (6), and the flexible fixing sheets (61) are respectively adhered to two sides of the model body (1) through magic tapes.

8. The model for intravenous blood sampling exercise according to claim 1, wherein the supporting block (6) is a box structure, and one side of the supporting block is provided with a cover plate (62) which can be opened and closed.

9. The model for intravenous blood sampling exercise according to claim 1, wherein the lower end of the distal end of the model body (1) is adhered with a wrist pad (8) by a velcro.

10. The model for intravenous blood sampling exercise according to claim 1, wherein the model body (1) is a sleeve structure matching the shape of an arm.