CN217133889U - A Human Simulation Model of Spinal Cord Puncture with Automatic Fluid Rehydration - Google Patents

Abstract

The utility model discloses a spinal puncture manikin with automatic fluid infusion, which comprises a workbench and a sitting posture simulation manikin fixed on the workbench, wherein the manikin utilizes a closed pressure-regulating type circulation automatic fluid infusion system to connect a fluid inlet, a vertebral model sac cavity, a fluid storage device and a fluid infusion tank in series through a delivery pipe, and an adjustable water pump is connected with the vertebral model sac cavity in parallel and is used for adjusting the circulation speed of simulation fluid in the vertebral model sac cavity and the fluid storage device; puncture holes are correspondingly formed in the correct puncture points of the vertebra, simulation skin is fixed on the outer surface of the correct puncture points so as to cover the puncture holes, and capsule cavities of the vertebra model are fixed in the model corresponding to the puncture holes; the vertebral model sac cavity, the liquid storage device and the liquid supplementing groove fixed on the operating platform are connected through a conveying pipe; this model supplies student's operation exercise to use, improves the actual operation level, has practiced thrift the time of changing the liquid device that holds, and convenient more personnel of waiting to train carry out the continuous operation exercise.

Description

A Human Simulation Model of Spinal Cord Puncture with Automatic Fluid Rehydration

technical field

The utility model relates to a spinal cord puncture teaching model, belonging to the field of medical teaching, in particular to a spinal cord puncture human simulation model for automatic fluid supplementation.

Background technique

Spinal puncture is lumbar puncture, or the professional name is lumbar puncture. Its purpose is to release cerebrospinal fluid through lumbar puncture or lumbar puncture, and then analyze the composition of cerebrospinal fluid, such as whether there is infection, degree of infection, white blood cell condition, protein content, etc. Disease can be identified. For example, in patients with meningitis in neurology, a definite diagnosis can be obtained through the puncture of hydrocephalus. Therefore, puncture itself is a means of diagnosis and treatment, and more of a means of diagnosis. It can also be a treatment method in neurosurgery, such as lumbar-peritoneal shunt. For example, after some major operations, the patient has fever, and through lumbar puncture, some bloody cerebrospinal fluid is released, and the cerebrospinal fluid is re-balanced. This is a treatment Means; Spinal cord puncture is a medical method that doctors must master, and requires doctors to be skilled, but medical students cannot master technical operations only by learning theoretical knowledge, and practicing on patients is not only dangerous. , but also increase the suffering of patients and increase the tension in the doctor-patient relationship. However, in the process of using the existing spinal cord puncture, it cannot quickly perform continuous training when there are many people to be trained. And the existing spinal puncture model cannot simulate human cerebrospinal fluid circulation in real time.

SUMMARY OF THE INVENTION

In order to solve the above problems and enable medical students to master clinical operation skills before entering the clinic, the utility model provides a spinal cord puncture human body simulation model for automatic rehydration, which is used by students for operation practice, improves the practical operation level, and improves the clinical teaching environment. , to improve the quality of teaching and cultivate outstanding medical talents.

In order to achieve the above object, the technical scheme adopted by the present utility model is:

A spinal cord puncture human body simulation model for automatic fluid supplementation, comprising a workbench, a spinal cord puncture human body simulation model fixed on the workbench, the The circulating automatic liquid replenishment system includes: a liquid inlet, a pressure-injection check valve located in the liquid inlet direction at the liquid inlet, and a model located behind the pressure-injection check valve, which is communicated through a conveying pipe according to the flow direction of the simulated liquid and arranged in sequence. The cavity, the liquid storage device and the liquid replenishment tank, and an adjustable water pump; the two ends of the adjustable water pump are installed with an input pipe and an output pipe, the input pipe is connected to the liquid storage device, and the output pipe is connected to the model bladder cavity. It is connected in parallel with the model capsule; the pressure-injection check valve can prevent the backflow of the simulated fluid, and the adjustable water pump is used to adjust the circulation speed of the simulated fluid between the model capsule and the liquid storage device; the spinal cord puncture human simulation model is placed in the spinal cord The correct puncture point corresponds to a puncture hole, the human body model is a hollow structure, and the outer surface is fixed with a simulated skin to cover the puncture hole, the interior of the model corresponds to the position of the puncture hole to fix the spinal model capsule, and the interior of the spinal model capsule is filled with simulated fluid; The vertebral model sac is connected to a liquid storage device through a conveying pipe, and the liquid storage device is connected to a liquid replenishing tank fixed on the operating table through the conveying pipe.

Further, the injection type one-way valve includes an inner layer, an opening formed on the inner layer, and an outer elastic blocking band covering the opening; the opening includes at least one, and each opening is covered with the elastic blocking band.

Further, the spinal cord puncture human body simulation model adopts a sitting posture, the back is slightly arched, the simulated lumbar vertebrae are placed on the waist of the simulated human body puncture model, and the spinal model cyst is built in.

Further, the workbench includes an operating table, an operating table panel and a moving device, on which is installed a spinal cord puncture human simulation model in a sitting position, and the conveying tube of the sitting spinal cord puncture human simulation model extends from the buttocks and respectively. The liquid inlet and the liquid replenishment port are fixed on the operation panel. The liquid inlet position is equipped with a conveying pipe with a pressure-injection check valve. The moving device is at least four universal wheels installed on the periphery of the bottom of the workbench. , the universal wheel is equipped with a fixing device.

Further, the liquid inlet is located on the operating table panel, and is connected to the vertebral model capsule through a delivery tube, and a pressure-injection check valve is installed in the delivery tube at the liquid inlet to the direction of the vertebral model capsule. .

Further, a normally open solenoid valve is installed in the conveying pipe between the liquid storage device and the liquid replenishment tank, and a second one-way valve in the direction from the liquid replenishment tank to the liquid storage device is installed in parallel with the solenoid valve. Start key control on the console panel.

Further, the fluid storage device of the spinal cord puncture human body simulation model is fixed inside the human body model, and is installed with two conveying tubes, one conveying tube is connected to the vertebral model capsule, and the other is connected to the fluid replenishing tank.

Further, the liquid replenishment tank is provided with an air inlet for maintaining a constant pressure of the system for liquid replenishment, and the air inlet can also be used as a liquid addition port of the liquid replenishment tank.

Further, the liquid replenishing tank is made of transparent material to facilitate observation of the remaining simulated liquid in the liquid storage device.

The working principle of the utility model is introduced: a spinal cord puncture human body simulation model for automatic fluid supplementation. The simulated liquid is injected into the model through the pressure injection type one-way valve of the liquid inlet pipeline on the operating console panel, and the simulated fluid is opened from the pressure injection type one-way valve. Open the elastic blocking belt, flow to the delivery tube through the blocking belt outlet at the front end of the elastic blocking belt and fill the thoracocentesis model capsule and the liquid storage device in turn, and then open the solenoid valve frequently to enter the rehydration tank until the simulated fluid is filled with the rehydration tank. Or when the simulated fluid enters the rehydration tank, use the air inlet (ie, the liquid addition port) to add the simulated fluid. After filling the fluid, start the start button on the control panel to connect the power supply to close the normally open solenoid valve, and adjust the simulated fluid in the spine through the adjustable water pump. The circulation speed between the model capsule cavity and the fluid storage device. At this time, a puncture needle is used to extract the simulated fluid in the spinal model capsule cavity, and a negative pressure is formed between the spinal model capsule cavity and the liquid storage device. The second one-way valve is automatically opened, and the simulated fluid in the rehydration tank automatically flows to the fluid storage device and the vertebral model capsule, and the fluid circulation flow rate and pressure between the vertebral model capsule and the fluid storage device can be adjusted arbitrarily by an adjustable water pump.

Compared with the prior art, the beneficial effects of the present utility model are:

(1) The liquid in the model capsule is an automatic rehydration system, which simplifies the operation steps;

(2) For the first time, the pressure-injection check valve is used for liquid injection, which can effectively avoid the pressure inconstancy caused by the inflow of the model capsule caused by the backflow and reverse pumping of the simulated liquid;

(3) Continuous automatic rehydration, which is convenient for students to carry out continuous puncture practice or examination;

(4) Use an adjustable water pump to adjust the circulating flow rate to simulate the circulation of cerebrospinal fluid in the human body, and the simulation is more realistic.

Description of drawings

Fig. 1 is the working flow chart of the automatic rehydration system of the spinal cord puncture human simulation model of a kind of automatic rehydration of the present utility model;

Fig. 2 is a schematic diagram of the working state of the pressure-injection check valve forward perfusion of the simulated liquid at the liquid inlet of a spinal cord puncture human simulation model for automatic rehydration of the present utility model;

3 is a schematic diagram of the state of the pressure-injection check valve reverse suction pressure-injection check valve at the liquid inlet of a spinal cord puncture human simulation model for automatic rehydration of the present invention;

4 is a front view of a spinal cord puncture human simulation model of the present invention;

5 is a side view of a spinal cord puncture human simulation model of the present invention;

FIG. 6 is a workbench of a spinal cord puncture human simulation model of the present invention.

Among them, 1~ liquid inlet; 2~ pressure injection check valve; 3~ model bladder; 4~ liquid storage device; 5~ liquid replenishment tank; 6~ normally open solenoid valve; 7~ second check valve; 8-conveying pipe; 9-adjustable water pump; 10-opening; 11-elastic blocking belt; 12-blocking belt outlet; 13-human body simulation model for spinal cord puncture; 14-workbench; 15-operating table; 16-operating table panel ; 17 ~ mobile device; 18 ~ fixed device; 19 ~ start key.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clear, the present utility model will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.

Embodiment 1: As shown in Figure 1, a closed constant pressure circulating automatic liquid replenishment system, including a liquid inlet 1, a spine model capsule 3, an adjustable water pump 9, a liquid storage device 4 and a liquid replenishment tank 5, through the liquid inlet The pressure-injection check valve 2 of port 1 is filled with the simulated liquid, and the simulated liquid flows from the elastic blocking belt 11 covered by the opening 10 of the pressure-injected one-way valve 2, and flows to the conveying pipe through the blocking belt outlet 12 at the front end of the elastic blocking belt 11 8. After filling the vertebral model capsule 3 and the fluid storage device 4 in turn, open the solenoid valve 6 and enter the fluid replenishment tank 5 frequently until the simulated fluid fills the fluid replenishment tank 5 or the simulated fluid enters the fluid replenishment tank. After filling the liquid, start the start button 19 to connect the power supply to close the normally open solenoid valve 6, adjust the adjustable water pump 9, change the circulation speed of the simulated liquid in the rehydration tank 5 and the vertebral model capsule 3, and conduct puncture teaching. Or test, extract the liquid in the vertebral model capsule cavity 3 outward, and a negative pressure is formed in the capsule cavity, which forms a pressure difference with the liquid storage device 4 and the liquid replenishment tank 5, and the simulated liquid flows from the liquid replenishment tank 5 to the liquid storage through the second one-way valve 7. The device 4 then flows to the vertebral model capsule 3 to form automatic fluid supplementation. At this time, the entire system is in a state of constant pressure.

Example 2: Application of a closed pressure-regulating circulatory automatic rehydration system in a spinal cord puncture human simulation model.

A spinal cord puncture human body simulation model for automatic fluid supplementation, comprising a workbench 14, a sitting posture simulated human body puncture model 13 fixed on the workbench 14, and the spinal cord puncture human body simulation model adopts a closed pressure-regulating circulating automatic fluid supplement system, and is transported through a conveying tube 8. The liquid inlet 1, the vertebral model capsule cavity 3, the liquid storage device 4 and the rehydration tank 5 are connected in series, and the adjustable water pump 9 and the vertebral model capsule cavity 3 are connected in parallel through the conveying pipe. Directional valve 2, pressure injection check valve 2 includes an inner layer, an opening 10 on the inner layer, and an outer elastic blocking band 11 covering the opening 10, and the simulated liquid passes through the blocking band outlet 12 at the front end of the elastic blocking band 11. Flow to the delivery tube 8 and then enter into the spinal model capsule 3; adjust the circulation speed of the simulated fluid between the spinal model capsule 3 and the liquid storage device 4 through the adjustable water pump 9; the spinal cord puncture human simulation model corresponds to the correct spinal cord puncture point A puncture hole is opened, the human body model is a hollow structure, a simulated skin is fixed on the outer surface to cover the puncture hole, the spine model capsule cavity 3 is fixed in the corresponding puncture hole position inside the model, and the capsule cavity is filled with simulated liquid; the puncture position is the back waist The puncture point is generally connected to the posterior and superior poles of the two iliac, and the puncture needle should pass through the skin, subcutaneous tissue, supraspinous ligament, interspinous ligament between the spinous processes, ligamentum flavum, and epidural space in sequence, and the needle should pass through the ligament and the dura mater. When the resistance suddenly disappears, you can feel a sense of disappointment. Adults are in the third, fourth or fourth and fifth lumbar intervertebral space, and neonates, in the intervertebral space below the third and fourth lumbar vertebrae; The liquid replenishment tank 5 on the platform 15 is connected, and an adjustable water pump 9 is added between the bladder cavity and the liquid storage device 4. In the working state, under the action of the adjustable water pump 9 after the power is turned on, the liquid flows between the liquid storage device 4 and the spine model bladder. Accelerate the circulation flow between the cavities 3 to simulate the situation of human spinal cord effusion; start the start button 19 to connect the power supply to close the solenoid valve, adjust the adjustable water pump 9 to simulate the circulation of fluid in the spinal cord, use the puncture needle to perform puncture training on the model, and extract the spinal cord Puncture the simulated fluid in the capsule cavity 3 of the spine model. At this time, a negative pressure is formed in the capsule cavity, which forms a pressure difference with the liquid storage device 4 and the fluid replenishing tank 5. The second one-way valve 7 is automatically opened, and the simulated fluid passes through the second one-way valve. 7 Flow from the rehydration tank 5 to the liquid storage device 4 and then to the spine model capsule 3 to form automatic rehydration. The simulated fluid flow mechanism is: liquid rehydration tank 5 → second one-way valve 7 → liquid storage device 4 → adjustable water pump 9 → spine Model capsule 3 → suction tube.

It should be understood that, the above-mentioned specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, but not to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention. Furthermore, the appended claims of this invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalents of such scope and boundaries.

Claims (9)

1. a spinal cord puncture human body simulation model of automatic rehydration, it is characterized in that, comprise workbench (14), be fixed on the spinal cord puncture human body simulation model (13) on workbench (14), described spinal cord puncture human body simulation model adopts A closed pressure regulating type circulating automatic liquid replenishing system, the closed pressure regulating type circulating automatic liquid replenishing system comprises: a liquid inlet (1), which is communicated with a conveying pipe (8) according to the flow direction of the simulated liquid and arranged in sequence at the liquid inlet (1). ), the pressure-injection check valve (2) in the liquid inlet direction at ), the model cavity (3) behind the pressure-injection check valve (2), the liquid storage device (4) and the refill tank (5), And an adjustable water pump (9); the two ends of the adjustable water pump (9) are provided with an input pipe and an output pipe, the input pipe is connected to the liquid storage device (4), and the output pipe is connected to the model capsule cavity (3) for the liquid feeding direction The pipe (8) is connected in parallel with the model bladder (3); the pressure-injection check valve (2) can prevent the backflow of the simulated fluid, and the adjustable water pump (9) is used to adjust the simulated fluid between the model bladder (3) and the model bladder (3). The circulation speed between the liquid storage devices (4); the spinal cord puncture human body simulation model is provided with a puncture hole corresponding to the correct puncture point of the spinal cord, the human body model is a hollow structure, and the outer surface is fixed with a simulated skin to cover the puncture hole, and the inside of the model corresponds to The position of the puncture hole is fixed in the spine model capsule (3), and the interior of the spine model capsule (3) is filled with simulated liquid; the spine model capsule (3) is connected to a liquid storage device (4) through a conveying pipe (8), and the liquid storage device (4) It is connected with the liquid replenishing tank (5) fixed on the operating table (15) through the conveying pipe (8). 2. the spinal cord puncture human body simulation model of a kind of automatic rehydration according to claim 1, is characterized in that, described pressure injection type one-way valve (2) comprises inner layer, opening (10) provided on inner layer and An outer elastic blocking band (11) covering the opening (10); the opening (10) includes at least one, and each opening (10) covers the elastic blocking band. 3. the spinal cord puncture human body simulation model of a kind of automatic rehydration according to claim 1, is characterized in that, described spinal cord puncture human body simulation model (13) adopts sitting posture, the back is slightly arched, and the simulated lumbar vertebrae are placed in the simulated human body. The waist of the model is punctured, and the vertebral model capsule (3) is built. 4. A spinal cord puncture human simulation model for automatic rehydration according to claim 1, wherein the workbench (14) comprises an operating table (15), an operating table panel (16) and a moving device (17) a spinal cord puncture human body simulation model (13) in a sitting posture is installed on the operating table (15), and the conveying tube (8) of the sitting posture spinal cord puncture human body simulation model (13) extends from the buttocks and is respectively fixed on the operation panel The position of the liquid inlet and the liquid replenishment port, the liquid inlet position is equipped with a conveying pipe with a pressure-injection check valve, and the moving device (17) is at least four universal directions installed on the periphery of the bottom of the workbench (14) respectively. wheel, the swivel wheel is equipped with a fixing device (18). 5. The spinal cord puncture human body simulation model of a kind of automatic rehydration according to claim 1, is characterized in that, described liquid inlet (1) is located on operating console panel (16), through conveying tube (8) and spine model The bladder (3) is connected, and a pressure-injection check valve (2) is installed in the delivery pipe (8) at the liquid inlet (1) in the direction from the liquid inlet to the spine model bladder (3). 6. The spinal cord puncture human body simulation model of a kind of automatic rehydration according to claim 1, is characterized in that, in the conveying pipe (8) between described liquid storage device (4) and rehydration tank (5), there is a constant Open the solenoid valve (6), and install the second check valve (7) in parallel with the solenoid valve in the direction from the liquid replenishing tank (5) to the liquid storage device (4). 16) Upper start key (19) control. 7. the spinal cord puncture human body simulation model of a kind of automatic rehydration according to claim 1, is characterized in that, the liquid storage device (4) of described spinal cord puncture human body simulation model (13) is fixed on the inside of the human body model, and is installed with. Two conveying pipes (8), one conveying pipe (8) is connected to the vertebral model capsule (3), and the other is connected to the fluid replenishing tank (5). 8. The spinal cord puncture human body simulation model of a kind of automatic rehydration according to claim 1, is characterized in that, described rehydration tank (5) is provided with air inlet, for maintaining system constant pressure infusion, described air inlet It can also be used as the liquid adding port of the liquid replenishing tank (5). 9 . The spinal cord puncture human body simulation model for automatic rehydration according to claim 1 , wherein the rehydration tank (5) is made of transparent material to facilitate observation of the remaining simulated liquid in the liquid storage device (4). 10 .

Images