CN209859454U - Teaching model for demonstration of vascular access lesion - Google Patents
Teaching model for demonstration of vascular access lesion Download PDFInfo
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- CN209859454U CN209859454U CN201920479511.4U CN201920479511U CN209859454U CN 209859454 U CN209859454 U CN 209859454U CN 201920479511 U CN201920479511 U CN 201920479511U CN 209859454 U CN209859454 U CN 209859454U
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Abstract
The utility model provides a teaching model for demonstrating vascular access lesion, which comprises an arm shell, a vascular model and a lesion module, wherein the arm shell is of a hollow structure; the blood vessel model is detachably fixed in the arm shell, and the head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model are all detachable into a plurality of segmented closed splicing structures and respectively comprise a healthy blood vessel segment and a diseased blood vessel segment; a lesion module is mounted in the lesion vessel segment; the teaching model also includes simulated muscles, and the blood vessel model is powered by a small water pump and injected with liquid to simulate blood circulation. The utility model discloses a detachable construction is convenient for change, is favorable to prolonging the life of model. In addition, the structure of segment type combination connection can simulate the pathological changes at different positions by the combination splicing of healthy vessel segments and pathological change vessel segments at different positions, thereby facilitating the study and practice of students on the pathological changes at different positions.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a teaching mode for vascular access pathological change demonstration.
Background
The precondition for hemodialysis is that a reliable vascular access is available and the quality of the vascular access directly affects the dialysis and quality of life of the patient. An arteriovenous fistula (AVF) refers to a vascular channel established by the anastomosis of an arteriovenous under the skin, is the most common vascular access of a hemodialysis patient at present, and is called a 'life line' of the patient.
Due to the long-term use of internal fistulas, lesions of the internal fistulas inevitably occur. Common lesions of internal fistulas include stenosis, thrombosis, and venous hemangioma; relatively little is known about these lesions for medical personnel and patients, and learning is required about the location of lesion creation and treatment regimens. However, no teaching demonstration device specially used for patient health education and medical personnel training exists in the market at present. Therefore, a teaching demonstration device for common lesions of an internal fistula vascular access is needed, which is used for teaching and demonstrating various common lesions of the vascular access to medical staff and patients; visual, visible and tactile teaching demonstration is provided for patients and medical care personnel, and the understanding of the medical care personnel and the patients on common lesions of the vascular access are improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a teaching model for demonstrating vascular access lesion.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a teaching model for demonstrating vascular access lesion comprises an arm shell, a vascular model and a lesion module, wherein the arm shell is consistent with the forearm of a human body in shape and is of a hollow structure; the blood vessel model is detachably fixed in the arm shell and comprises a head vein blood vessel model, a radial artery blood vessel model and an ulnar artery blood vessel model which are communicated according to the position of the internal fistula of the human body; the head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model are all closed splicing structures which can be disassembled into a plurality of sections, and each section of splicing structure of the head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model comprises a healthy blood vessel section and a diseased blood vessel section; the diseased module is mounted in the diseased vessel segment.
The teaching model is characterized in that the arm shell is of a symmetrically-detachable structure, the arm shell and the blood vessel model are both made of elastic materials, the teaching model further comprises simulated muscles, and the simulated muscles are detachably filled between the arm shell and the blood vessel model; the blood vessel model is a communicated loop and comprises an inlet and an outlet, the inlet and the outlet are both connected with a miniature water pump, and the blood vessel model is powered by the miniature water pump and injects liquid to simulate blood circulation.
Preferably, the arm shell and the blood vessel model are connected through a fixing frame, the fixing frame is fixed inside the arm shell, and the blood vessel model is clamped and fixed on the fixing frame.
Preferably, the head vein model, the radial artery model and the ulnar artery model are different in color.
Preferably, the head vein vessel model, the radial artery vessel model and the ulnar artery model are spliced by combining the healthy vessel segment and the diseased vessel segment.
Preferably, the lesion module is made of silica gel or plasticine, and the lesion module can be movably fixed at different positions inside the lesion blood vessel section so as to simulate the conditions of stenosis, venous hemangioma or thrombus.
Preferably, the lesion module is integrally disposed on the lesion blood vessel section, and the lesion module and the lesion blood vessel section are both made of the same elastic transparent material.
Preferably, the arm shell and the simulated muscle are both made of transparent materials.
Preferably, the water pump is a power adjustable water pump, the water pump being adapted to vary the flow rate simulating blood circulation.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model is used for explaining some problems of vascular access for students, such as stenosis, venous hemangioma and thrombus. Adopt detachable construction, arm casing and blood vessel model are detachable symmetrical structure, are convenient for open when the demonstration and see concrete internal fistula structure for the student, and blood vessel model detachably installs in the arm casing to head vein blood vessel model, radial artery blood vessel model and ulnar artery blood vessel model also are detachable connection structure, and such structure is convenient for change, is favorable to prolonging the life of model. In addition, the cephalic vein blood vessel model, the radial artery blood vessel model and the ulnar artery blood vessel model are all segment type combined connection structures, each segment comprises a healthy blood vessel segment and a diseased blood vessel segment, and the healthy blood vessel segments and the diseased blood vessel segments at different positions are spliced in a combined mode, so that pathological changes at different positions can be simulated, and students can learn and practice pathological changes at different positions conveniently. The two ends of the blood vessel passage are connected with the water pump for injecting water into the blood vessel passage and simulating the change of the blood flow rate by using the water pump, thereby being beneficial to more truly carrying out simulation training.
Drawings
Fig. 1 is a schematic structural diagram of a teaching model for demonstrating vascular access lesion.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, the utility model provides a teaching model for demonstrating vascular access lesion, which comprises an arm shell, a vascular model and a lesion module, wherein the arm shell is in accordance with the forearm of a human body in shape, and the arm shell is of a hollow structure; the blood vessel model is detachably fixed in the arm shell and comprises a head vein blood vessel model, a radial artery blood vessel model and an ulnar artery blood vessel model which are communicated according to the position of the internal fistula of the human body; the student can remember the shape of the internal fistula on the human arm by being familiar with the distribution of the blood vessel model. The head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model are all closed splicing structures which can be disassembled into a plurality of sections, and each section of splicing structure of the head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model comprises a healthy blood vessel section and a diseased blood vessel section; therefore, the head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model can be formed by jointly splicing healthy blood vessel segments and diseased blood vessel segments, the number of the healthy blood vessel segments and the diseased blood vessel segments can be adjusted at any time, so that the conditions of different diseased numbers can be conveniently simulated, and the device is high in flexibility and operability. The diseased module is mounted in the diseased vessel segment.
The teaching model is characterized in that the arm shell is of a symmetrically-detachable structure, the arm shell and the blood vessel model are made of elastic materials, the teaching model further comprises simulation muscles, and the simulation muscles are detachably filled between the arm shell and the blood vessel model; the blood vessel model is a communicated loop and comprises an inlet and an outlet, the inlet and the outlet are both connected with a miniature water pump, and the blood vessel model is powered by the miniature water pump and injects liquid to simulate blood circulation. The arm shell is of a symmetrically detachable structure, so that the arm shell can be detached during teaching, and the distribution of the blood vessel access and the condition of simulating pathological changes can be observed more intuitively; the model is made of elastic materials, so that the elasticity and the softness of human skin can be better simulated, simulated muscles can be filled between the arm shell and the blood vessel model, and a more real simulated environment can be provided when students practice operations such as puncture. The entry or exit linkage small-size water pump at the blood vessel model, pour into liquid into in to the blood vessel model, can be used for simulating the circulation that flows of blood, it is more true when the student practices the operation, simulation muscle can only fill the first half that needs the puncture when the puncture is practiced, in case take place the pjncture needle puncture when the puncture too deeply like this, puncture the lower extreme of blood vessel model, liquid in the simulation blood vessel will leak the arm casing in, can feed back the exercise condition directly perceivedly, remind student misoperation.
Preferably, the arm shell is connected with the blood vessel model through a fixing frame, the fixing frame is fixed in the arm shell, the blood vessel model is clamped on the fixing frame, the blood vessel model can be erected and fixed at a proper height, and the distance between the blood vessel model and the arm shell is reduced as much as possible; and the mount can be height-adjustable's mount, for blood vessel model fixed position's training or exercise model, the utility model discloses a blood vessel model height can be adjusted at any time, can operate in a flexible way.
Preferably, the head vein model, the radial artery model and the ulnar artery model are different in color, so that the head vein model, the radial artery model and the ulnar artery model can be distinguished by naked eyes of a user.
Preferably, the cranial vein vessel model, the radial artery vessel model and the ulnar artery model are formed by combining and splicing the healthy vessel segments and the diseased vessel segments, so that the number of the healthy vessel segments and the diseased vessel segments can be adjusted at any time to conveniently simulate the conditions of different diseased numbers, a completely healthy vessel passage can be simulated by splicing, a diseased vessel model or vessel models with multiple diseased regions can be simulated, and the models can be repeatedly used.
In one embodiment, the lesion module is made of silica gel or plasticine, and the lesion module is movably fixed at different positions in the lesion blood vessel segment to simulate conditions of stenosis, venous hemangioma or thrombus, and the like.
In another embodiment, the lesion module is integrally arranged on the lesion blood vessel section, the lesion module and the lesion blood vessel section are both made of the same elastic transparent material, the lesion module and the lesion blood vessel section are integrally connected, and compared with the detachable connection, the integrally connected lesion blood vessel section is fixed in lesion area, but is closer to the real puncture in all aspects when puncture is practiced.
Preferably, the arm casing with the simulation muscle is transparent material, is convenient for direct observation blood vessel model simulation's the condition of vascular access when teaching or exercise to puncture and take place the error, for example puncture position is inaccurate or puncture too deeply.
Preferably, the water pump is a power-adjustable water pump, and the water pump is used for changing the flow rate of the simulated blood circulation, so that the blood flow rate of different patients can be simulated, and the authenticity of the simulation is increased.
From the foregoing, the present invention is directed to explaining some problems of vascular access, such as stenosis, venous hemangioma and thrombosis, for students. Adopt detachable construction, arm casing and blood vessel model are detachable symmetrical structure, are convenient for open when the demonstration and see concrete internal fistula structure for the student, and blood vessel model detachably installs in the arm casing to head vein blood vessel model, radial artery blood vessel model and ulnar artery blood vessel model also are detachable connection structure, and such structure is convenient for change, is favorable to prolonging the life of model. In addition, the cephalic vein blood vessel model, the radial artery blood vessel model and the ulnar artery blood vessel model are all segment type combined connection structures, each segment comprises a healthy blood vessel segment and a diseased blood vessel segment, and the healthy blood vessel segments and the diseased blood vessel segments at different positions are spliced in a combined mode, so that pathological changes at different positions can be simulated, and students can learn and practice pathological changes at different positions conveniently. The two ends of the blood vessel passage are connected with the water pump for injecting water into the blood vessel passage and simulating the change of the blood flow rate by using the water pump, thereby being beneficial to more truly carrying out simulation training.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (8)
1. A teaching model for vascular access lesion demonstration is characterized in that: the arm shell is consistent with the shape of the forearm of a human body, and is of a hollow structure; the blood vessel model is detachably fixed in the arm shell and comprises a head vein blood vessel model, a radial artery blood vessel model and an ulnar artery blood vessel model which are communicated according to the position of the internal fistula of the human body; the head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model are all closed splicing structures which can be disassembled into a plurality of sections, and each section of splicing structure of the head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model comprises a healthy blood vessel section and a diseased blood vessel section; the diseased module is mounted in the diseased vessel segment;
the teaching model is characterized in that the arm shell is of a symmetrically-detachable structure, the arm shell and the blood vessel model are both made of elastic materials, the teaching model further comprises simulated muscles, and the simulated muscles are detachably filled between the arm shell and the blood vessel model; the blood vessel model is a communicated loop and comprises an inlet and an outlet, the inlet and the outlet are both connected with a miniature water pump, and the blood vessel model is powered by the miniature water pump and injects liquid to simulate blood circulation.
2. A teaching model for vascular access pathology demonstration according to claim 1, characterized in that: the arm shell and the blood vessel model are connected through a fixing frame, the fixing frame is fixed inside the arm shell, and the blood vessel model is fixedly clamped on the fixing frame.
3. A teaching model for vascular access pathology demonstration according to claim 1, characterized in that: the head vein model, the radial artery model and the ulnar artery model are different in color.
4. A teaching model for vascular access pathology demonstration according to claim 1, characterized in that: the head vein blood vessel model, the radial artery blood vessel model and the ulnar artery model are formed by combining and splicing the healthy blood vessel segment and the diseased blood vessel segment.
5. A teaching model for vascular access pathology demonstration according to claim 1, characterized in that: the pathological change module is made of silica gel or plasticine and can be movably fixed at different positions in the pathological change blood vessel section so as to simulate the pathological conditions of stenosis, venous hemangioma or thrombus and the like.
6. A teaching model for vascular access pathology demonstration according to claim 1, characterized in that: the lesion module is integrally arranged on the lesion blood vessel section, and the lesion module and the lesion blood vessel section are both made of the same elastic transparent material.
7. A teaching model for vascular access pathology demonstration according to claim 1, characterized in that: the arm shell and the simulated muscle are both made of transparent materials.
8. A teaching model for vascular access pathology demonstration according to claim 1, characterized in that: the water pump is a power adjustable water pump used to vary the flow rate of the simulated blood circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920479511.4U CN209859454U (en) | 2019-04-10 | 2019-04-10 | Teaching model for demonstration of vascular access lesion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920479511.4U CN209859454U (en) | 2019-04-10 | 2019-04-10 | Teaching model for demonstration of vascular access lesion |
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| CN209859454U true CN209859454U (en) | 2019-12-27 |
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| CN201920479511.4U Expired - Fee Related CN209859454U (en) | 2019-04-10 | 2019-04-10 | Teaching model for demonstration of vascular access lesion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564093A (en) * | 2020-04-08 | 2020-08-21 | 宁波创导三维医疗科技有限公司 | Transradial artery puncture model with replaceable simulated blood vessel module |
| CN113487948A (en) * | 2021-07-01 | 2021-10-08 | 吉林大学 | Deep vascular anastomosis operation training platform for microneurosurgery |
-
2019
- 2019-04-10 CN CN201920479511.4U patent/CN209859454U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564093A (en) * | 2020-04-08 | 2020-08-21 | 宁波创导三维医疗科技有限公司 | Transradial artery puncture model with replaceable simulated blood vessel module |
| CN113487948A (en) * | 2021-07-01 | 2021-10-08 | 吉林大学 | Deep vascular anastomosis operation training platform for microneurosurgery |
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Granted publication date: 20191227 |