CN107833516B - Medium supply system for puncture/intubation training and method for simulating aspiration medium - Google Patents
Medium supply system for puncture/intubation training and method for simulating aspiration medium Download PDFInfo
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- CN107833516B CN107833516B CN201710839166.6A CN201710839166A CN107833516B CN 107833516 B CN107833516 B CN 107833516B CN 201710839166 A CN201710839166 A CN 201710839166A CN 107833516 B CN107833516 B CN 107833516B
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- 238000012549 training Methods 0.000 title claims abstract description 42
- 238000002627 tracheal intubation Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims description 151
- 210000001124 body fluid Anatomy 0.000 claims description 3
- 239000010839 body fluid Substances 0.000 claims description 3
- 230000003902 lesion Effects 0.000 claims description 2
- 239000008280 blood Substances 0.000 description 9
- 210000004369 blood Anatomy 0.000 description 9
- 230000002572 peristaltic effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000004872 arterial blood pressure Effects 0.000 description 5
- 201000003144 pneumothorax Diseases 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 206010002091 Anaesthesia Diseases 0.000 description 3
- 230000037005 anaesthesia Effects 0.000 description 3
- 230000003444 anaesthetic effect Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 230000036770 blood supply Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000005228 Pericardial Effusion Diseases 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000002064 heart cell Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009593 lumbar puncture Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
- G09B23/285—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas
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Abstract
The invention relates to a medium supply system for puncture/intubation training and a method for simulating an aspiration medium, which comprise a communication device (330), a medium supply device (500) and a controller (402), wherein the communication device comprises a first connecting end, a second connecting end and a third connecting end, at least the third connecting end is communicated with the second connecting end, the first output end of the medium supply device (500) is connected with the third connecting end of the communication device (330) through a pipeline (403), the third connecting end is positioned between the first connecting end and the second connecting end, and the controller (402) is electrically connected with the medium supply device (500).
Description
Technical Field
The invention relates to a medium supply system for puncture/intubation training and a method for simulating aspiration medium.
Background
In medical teaching simulation training, when carrying out puncture training, adopt the syringe needle to carry out the acupuncture to the water pocket, simulate the operation of puncture, adopt the puncture model and the syringe needle of this kind of structure, easily puncture the water pocket, the water pocket quantity is many, consequently, need carry out comprehensive improvement to the training model for puncture, this unit has developed novel puncture model through research and development, when puncture, not directly inhale the medium through the syringe needle, but supply the medium to the cylinder through supplying the medium device, realize the suction work to the medium, but when carrying out the simulation teaching of puncture/intubate, can only penetrate the degree of depth in the emulation human tissue through the syringe needle and judge whether the operation is correct, but lack this kind of medium supply device for puncture training in the prior art, make above-mentioned puncture training unable go on smoothly consequently need improve prior art's medium supply device.
Disclosure of Invention
The invention aims to provide a medium supply system for puncture/intubation training and a method for simulating an aspiration medium, aiming at the defect of high training cost caused by the fact that a water bag is easy to damage when a syringe and the water bag are adopted to simulate puncture intubation operation in the prior art.
The invention aims at realizing the following technical scheme:
the medium supply system for puncture/intubation training comprises a communication device (330), a medium supply device (500) and a controller (402), wherein the communication device comprises a first connecting end, a second connecting end and a third connecting end, at least the third connecting end is communicated with the second connecting end, the first output end of the medium supply device (500) is connected with the third connecting end of the communication device (330) through a pipeline (403), the third connecting end is positioned between the first connecting end and the second connecting end, and the controller (402) is in electric signal connection with the medium supply device (500);
the device also comprises a pressure sensing device (401), wherein the pressure sensing device (401) is arranged on a pipeline (403) between the communication device (330) and the medium supply device (500), and the pressure sensing device (401) is electrically connected with the controller;
the medium supply device (500) is an air pump, the air outlet end (529) of the air pump (501) is connected with the inlet end of the pipeline (403), and the air pump is connected with the controller through an electric signal;
the medium supply device (500) is a liquid supply device, the liquid supply device comprises at least one liquid container and a normally closed electromagnetic valve, each liquid container is provided with the normally closed electromagnetic valve, liquid is arranged in the liquid container, the normally closed electromagnetic valve is electrically connected with the controller, and the liquid in the liquid container is controlled to be switched on and off with the supply pipeline (403) through the normally closed electromagnetic valve;
the liquid pump is electrically connected with the controller, and the input end of the liquid pump is connected with the liquid outlet of the liquid container;
the medium supply device (500) comprises a gas supply device and a liquid supply device, the gas supply device is an air pump, the liquid supply device comprises a liquid pump and a liquid container, liquid is arranged in the liquid container, the liquid pump and the air pump are respectively and electrically connected with the controller, when the liquid pump works, the liquid in the liquid container is supplied into the pipeline (403) through the liquid pump (524), the air outlet end (529) of the air pump is connected with the inlet of the pipeline (403), and the air pump and the liquid pump are respectively and electrically connected with the controller;
the liquid container is connected with the air outlet end, the air outlet end is controlled to be opened and closed through a fourth normally closed electromagnetic valve (528), and the fourth normally closed electromagnetic valve (528) is connected with the controller 402 in an electric signal mode.
A method for simulating aspiration medium during puncture/intubation training is provided, wherein a controller controls a medium supply device to output medium according to case setting so as to simulate aspiration medium operation;
controlling, by the controller, the medium supply device to output a medium according to the obtained pressure signal;
the medium supply device is adopted.
According to the medium supply system and the method for simulating the sucking medium, the medium is conveyed into the injector through the pump body to simulate the sucking of the medium by the actual puncture or intubation injector, so that various colors of liquid can be supplied to replace substances sucked in the puncture or intubation under the control of the controller, the thrust action of pressure in the puncture or intubation on the propeller is simulated by supplying gas into the injector cylinder, a set of puncture/intubation training device can adapt to the needs of training of various cases, the process is highly simulated, the training efficiency of students is improved, the feeling in the simulation training is closer to the actual operation feeling, and the quality of simulation teaching is improved.
The communication device provided by the invention is provided with three connecting ends, at least two connecting ends are communicated, and the two communicated connecting ends can be connected with the syringe and the medium supply device and are different from the needle or the cannula end, so that the medium can be conveyed into the syringe, but the medium supplied into the syringe cannot enter the needle or the cannula.
Drawings
FIG. 1 is a schematic diagram of the principle and construction of a medium supply system for puncture/intubation training of the present invention;
FIG. 2 is a schematic illustration of the connection of a cannula to a communication device in a cannula training device;
FIG. 3 is a schematic view of an embodiment of a puncture/cannula training medium supply system of the present invention, with a syringe attached;
FIG. 4 is a schematic view showing a connection structure between the puncture syringe and the communication device according to the present invention.
Description of the reference numerals
301-needle;
302-a syringe; 303-syringe; 304-push plug
330-communicating means; 331—connection end one; 332-a second connecting end; 333-connector three
401-pressure sensing means;
402-a controller;
403-piping;
500-medium supply means;
501-an air pump;
502-a liquid container; 521-first liquid container; 522-liquid container two; 523-liquid container three; 524-a liquid pump; 525-normally closed solenoid valve one; 526-a normally closed electromagnetic valve II; 527-normally closed solenoid valve III; 528-normally closed solenoid valve four; 529-an air outlet end;
503-normally open solenoid valve.
601-insert section;
Detailed Description
The invention is further described below in connection with specific examples:
as shown in fig. 1, a medium supply system for puncture/intubation training includes a communication device 330, a pressure sensing device 401, a medium supply device 500, and a controller 402, wherein an output end of the medium supply device 500 is communicated with an input end of the communication device 330 through a pipeline 403, the pressure sensing device 401 is disposed on the pipeline 403 between the communication device 330 and the medium supply device 500, and the pressure sensing device and the medium supply device are respectively communicated with the controller 402. The communication device comprises three connection ends, namely a first connection end 331, a second connection end 332 and a third connection end 333, wherein at least the second connection end and the third connection end are communicated, and the third connection end is used as an input end to be communicated with the first output end of the medium supply device through a communication pipeline 403. As shown in fig. 2, when the medium supply system for puncture/intubation training is used in an intubation training device, one end of an intubation tube is an insertion end, the other end of the intubation tube is connected with a first connecting end of a communication device, a needle cylinder 303 of a syringe is connected with a second connecting end, and a third connecting end is positioned between the first connecting end and the second connecting end; as shown in fig. 4, when the puncture training device is used, the connection end is connected with the needle 301, the connection end two is communicated with the syringe 303, the syringe 302 is used as a propelling device, the syringe is used as a plug of the propelling device, and the needle rod is used as a propelling plug 304.
The use process and the working principle are illustrated by taking puncture operation training as an example. In use, the plunger 304 of the injector is pushed or pulled back in the syringe 303, when pushed, the pressure in the syringe is increased, when pulled back, the pressure in the syringe is reduced to negative pressure, the pressure sensing device 401 detects the pressure in the syringe 303 of the injector 302, the pressure sensor transmits the detected pressure signal to the controller 402, when the pressure in the syringe 302 is negative pressure, the controller 402 controls the medium supply device 500 to output the medium, the medium enters the syringe 303 of the injector 302 through the pipeline 403 from the communication device 330, the medium is sucked into the syringe, and the sucking action is simulated to be completed. Preferably, the pressure sensing device 401 is a pressure sensor, and the pressure sensor can accurately detect whether the syringe 302 is positive or negative.
The pressure sensing device 401 may not be provided, and when the medium is required to be conveyed into the syringe to simulate the operation of drawing out body fluid from a human body, the controller can convey the medium into the syringe by controlling the supply device, and a pump is required to be arranged in the medium supply device.
As shown in fig. 3, the medium supply device 500 may be a gas supply device, a liquid supply device, or a liquid/gas mixed supply device, and different medium supply devices may be provided according to the needs of the case. In the case of the air supply device, a micro air pump is preferable as the air supply device, and the pressure of the human body in the puncturing operation of pneumothorax and the like can be simulated by the air pump. In the case of a liquid supply device, the liquid supply device consists of at least one liquid container for containing liquid and a normally closed electromagnetic valve, wherein each liquid container is provided with a normally closed electromagnetic valve, the normally closed electromagnetic valve is arranged on a pipeline between the communication device and the liquid container and controls the liquid to be output from the liquid container through a liquid container communication pipeline 403. The medium supply device with the structure can be used for directly conveying the medium into the syringe by the liquid container when negative pressure is formed in the syringe, and simulates the operation process of extracting body fluid from a lesion through the syringe in puncture or intubation. The liquid supply device may be provided with a liquid pump, wherein an output port of the liquid container is connected to an input end of the liquid pump, and an output end of the liquid pump is connected to a pipe 403. The liquid pump is preferably a peristaltic pump. The liquid supply device with the pump body is mainly used for passive liquid supply, for example, in arterial puncture operation, arterial pressure is high, when a needle head is inserted to a correct depth and position, a pushing plug can automatically draw back under the pressure of a human body, at the moment, blood automatically enters a needle cylinder under the action of arterial pressure when puncture is simulated by a liquid pump, and the pump can be used for beating a heart when heart is punctured by heart cells. When the liquid pump has a backflow preventing structure, a normally open electromagnetic valve can be arranged on the pipeline 403, when the liquid pump works and the medium is conveyed into the needle cylinder through the liquid pump, the normally open electromagnetic valve is closed, so that the liquid in the liquid container is conveyed into the needle cylinder through the liquid pump, and when the liquid pump with the backflow preventing structure does not work, the liquid container and the pipeline 403 can be communicated.
When the medium supply device 500 is formed by mixing a gas supply device and a liquid supply device, it may be configured to include an air pump 501, where the air pump and the three liquid supply devices are combined to form different medium supply devices, for example, a medium supply device with a liquid pump is combined with the liquid supply device with a structure that the air pump 501, the liquid pump 524, at least one liquid container 502 and a normally closed solenoid valve are included, each liquid container is respectively provided with a normally closed solenoid valve, an air outlet end of the air pump 501, an output end of the liquid pump and a liquid outlet end of the liquid container 502 are all connected with an inlet of the pipeline 403, liquid in the liquid container 502 is supplied into the pipeline 403 through the liquid pump 524, and when the liquid pump has a backflow prevention structure, a normally open solenoid valve is disposed on the pipeline, and a normally open solenoid valve may be disposed for each liquid container, and a solenoid valve may also be disposed to control the on-off of a plurality of liquid containers and the communication devices. A plurality of liquid containers can be arranged to be respectively communicated with the liquid pump, and the communication device is controlled to be communicated with each liquid container through a normally open electromagnetic valve.
In practical puncture and intubation, such as arterial puncture, the needle tube reaches the correct puncture position and the pushing plug is automatically withdrawn under the action of arterial pressure. The specific scene is that the case is set into arterial puncture, when the needle is pricked to the correct depth, the controller starts the liquid pump, the liquid pump conveys the liquid in the liquid container to the scene that the blood is pressed into the syringe by the simulated arterial pressure, and in order to simulate the real scene, red liquid is set in the liquid container as the blood.
The construction and principles of the present invention will now be described in detail by way of example only with reference to a specific embodiment.
As shown in fig. 4, the medium supply device 500 includes a micro air pump 501 and a liquid container 502, the liquid container 502 includes a first liquid container 521, a second liquid container 522 and a third liquid container 523, output ends of the first liquid container 521, the second liquid container 522 and the third liquid container 523 are respectively connected with inlet ends of the pipeline 403, outlets of the first liquid container 521, the second liquid container 522 and the third liquid container 523 are respectively and correspondingly connected with a first normally closed electromagnetic valve 525, a second normally closed electromagnetic valve 526 and a third normally closed electromagnetic valve 527, and the first normally closed electromagnetic valve 525, the second normally closed electromagnetic valve 526 and the third normally closed electromagnetic valve 527 are respectively and electrically connected with the controller 402.
The device described above can be used for various cases of puncture and catheterization procedures. When in use, different cases are input into the medium control device, and the medium supply device is controlled by the controller to supply different mediums according to different cases and training purposes.
The following describes an example of the training for performing the heart puncture. The heart puncture is a complex puncture, red liquid and yellow liquid may be sucked in during the puncture process, the yellow liquid represents effusion, the red liquid represents blood in the embodiment of the invention, for example, when a patient is pericardial effusion, a syringe needle is pricked to a correct depth, a pushing plug is withdrawn to form negative pressure in a syringe, the pressure sensor detects the negative pressure during suction, the suction operation is considered to be performed, the normally closed electromagnetic valve II 526 is opened, the yellow liquid is sucked out of the liquid container II and enters the syringe, when the puncture depth exceeds a specified depth, the controller controls the normally closed switch to be opened, and the red liquid is supplied into the syringe by the liquid container III through the liquid pump. Under the same suction action, when the controller controls the medium supply device according to the setting of the case and the anesthesia is performed before the thoracocentesis, when the anesthesia needle is penetrated to different depths, the anesthesia needle needs to be withdrawn first to observe whether effusion is withdrawn, for example, no effusion or blood is withdrawn, then anesthetic can be injected, for example, the effusion is withdrawn to indicate that the puncture needle enters the pleural layer, and then anesthetic can not be injected again. If the operation does not accord with the correct operation flow controller, an alarm is sent; when the arterial puncture is carried out, as the blood pressure in the artery is very high, the suction is not needed, the needle cylinder can be automatically jacked up by the artery, the pushing plug can automatically retreat, and the blood can automatically enter the needle cylinder. According to the invention, the operation training process is simulated through case setting, after the case is selected, when the needle is punched to the correct position, the controller controls the corresponding medium providing device to provide a medium, the liquid pump drives red liquid in the liquid container III to enter the needle cylinder, the process that blood automatically enters the needle cylinder is simulated, preferably, the peristaltic pump is adopted as the liquid pump, arterial pressure is simulated by the peristaltic pump, the blood is conveyed into the needle cylinder, and likewise, the peristaltic pump can simulate the blood supply action of the heart, when the heart and the cell are punched, the peristaltic pump simulates the blood supply action of the heart, the controller controls the water pump to act at the frequency of simulating the heart rate, and the red liquid serving as simulated blood enters the needle cylinder under the action of the peristaltic pump; when pneumothorax puncture is carried out, the pressure of pneumothorax is very big, can push back the propulsion plug of cylinder, and gas can enter into in the cylinder, when adopting this device to carry out pneumothorax puncture operation training, after the needle thorns correct position, the controller is according to the case control air pump work of setting up, inputs gas in the cylinder, then the action of gas entering into the cylinder in the simulation pneumothorax puncture. When lumbar puncture is performed, transparent liquid is used as cerebrospinal fluid to provide medium.
According to the medium supply system, the medium is conveyed into the injector through the pump body to simulate the suction of the medium by the actual puncture or intubation injector, so that various colors of liquid can be supplied to replace substances sucked in the puncture or intubation according to different cases under the control of the controller, the thrust action of pressure in the puncture or intubation on the propeller is simulated by supplying gas into the injector cylinder, a set of puncture/intubation training device can adapt to the needs of training of various cases, the process is highly simulated, the training efficiency of students is improved, the feeling in the simulated training is closer to the actual operation feeling, and the quality of simulated teaching is improved. The controller 402 controls the normally-closed electromagnetic valve III 527 to open and the peristaltic pump to work, so that the liquid in red color is filled into the syringe 302, different mediums are injected into the syringe 302 aiming at different cases, and students can more directly observe the puncture/cannula conditions aiming at different cases, so that the teaching quality is improved.
Preferably, the first liquid container 521, the second liquid container 522 and the third liquid container 523 are commonly connected with an air outlet end 529, a fourth normally-closed electromagnetic valve 528 is arranged on the air outlet end, and the fourth normally-closed electromagnetic valve 528 is electrically connected with the controller 402, so that the controller 402 can control the fourth normally-closed electromagnetic valve 528 to be opened, so that the air in the first liquid container 521, the second liquid container 522 and the third liquid container 523 is discharged from the air outlet end, and the liquid in the first liquid container 521, the second liquid container 522 and the third liquid container 523 is convenient to flow out. As shown in fig. 2, an injector for puncture training comprises a needle 301, a needle cylinder 303 and a communication device 330, wherein the needle 301 and the needle cylinder 303 are connected through the communication device 330, the communication device comprises a communication device body, an inner hole is arranged in the communication device body, at least three connecting ends are arranged on the communication device body, namely a connecting end one 331, a connecting end two 332 and a connecting end three 333, the connecting end three is positioned between the connecting end two and the connecting end one, the connecting end one 331 and the connecting end two 332 are preferably arranged in a linear mode, the needle head is connected by the connecting end one 331, the connecting end two 332 is connected with the needle cylinder, the connecting end three 333 is arranged between the connecting end one 331 and the connecting end two 332, at least the connecting end two 332 and the connecting end three 333 are communicated, so that the needle cylinder is communicated with the connecting end three 333, the connecting end three 333 is connected with the output end of a pipeline 403, and the needle cylinder 303 is communicated with a medium supply system through the communication device 330. The communication device 330 may be a tee joint, that is, the first connection end 331, the second connection end 332, and the third connection end 333 are mutually communicated, and the needle 301 and the syringe 303 can be connected through the action of the tee joint, and also the communication between the medium supply system and the syringe 303 can be realized, and the medium in the medium supply system enters the syringe 303 through the tee joint. Preferably, the communication device 330 is two-way, only the second connecting end 332 and the third connecting end 333 are connected, and the third connecting end 333 is connected with the first output end of the medium supply system, so that the needle is not communicated with the medium supply system, only the needle cylinder 303 is communicated with the medium supply system, the medium in the medium supply system can enter the needle cylinder 303 and cannot enter the needle 301, and inconvenience in use caused by the medium entering the needle 301 is avoided, in the embodiment, the communication device 330 can be fixedly connected with the needle 301 and the needle cylinder 303 or can be detachably connected, preferably, the communication device 330 is detachably connected with the needle 301 and the needle cylinder 303, so that the needle cylinder 303 or the needle cylinder 303 can be replaced after being damaged, the communication device 330 is not required to be replaced, the service life of the communication device 330 is prolonged, and the cost is reduced. The communication device is connected with the needle head and the needle cylinder through threads or clamping connection or plug connection.
Claims (7)
1. The medium supply system for puncture/intubation training is characterized by comprising a communication device (330), a medium supply device (500) and a controller (402), wherein the communication device comprises a first connecting end, a second connecting end and a third connecting end, at least the third connecting end is communicated with the second connecting end, the first output end of the medium supply device (500) is connected with the third connecting end of the communication device (330) through a pipeline (403), the third connecting end is positioned between the first connecting end and the second connecting end, the controller (402) is connected with the medium supply device (500) through electric signals,
the device also comprises a pressure sensing device (401), wherein the pressure sensing device (401) is arranged on a pipeline (403) between the communication device (330) and the medium supply device (500), the pressure sensing device (401) is electrically connected with the controller, the pressure sensing device (401) detects the pressure in the syringe (302) and the syringe (303), the pressure sensor transmits the detected pressure signal to the controller (402), when the syringe (302) is in negative pressure, the controller (402) controls the medium supply device (500) to output a medium, and the medium is sucked into the syringe (303) of the syringe (302) through the pipeline (403) by the communication device (330) to simulate and finish sucking action.
2. The puncture/cannula training medium supply system according to claim 1, wherein the medium supply device (500) is an air pump, an air outlet end (529) of the air pump (501) is connected with an inlet end of the pipeline (403), the air pump is electrically connected with a controller, the pressure of a human body in the puncture operation is simulated by the air pump, when the pressure is high, the controller controls the air pump to work to input the air into the needle cylinder, and the action of the air entering the needle cylinder when the pressure is high is simulated.
3. A puncture/cannula training medium supply system as set forth in claim 1, characterized in that the medium supply device (500) is a liquid supply device, the liquid supply device comprises at least one liquid container and a normally closed solenoid valve, each liquid container is provided with a normally closed solenoid valve, liquid is arranged in the liquid container, the normally closed solenoid valve is electrically connected with the controller, the liquid in the liquid container is controlled to be connected with the supply pipeline (403) through the normally closed solenoid valve, and the medium supply device is used for directly conveying medium into the syringe from the liquid container when negative pressure is formed in the syringe, and simulating the operation process of extracting body fluid from a lesion through the syringe in puncture or cannula operation.
4. A puncture/cannula training medium supply system as claimed in claim 3, characterized in that it comprises a liquid pump, the input of which is connected to the liquid outlet of the liquid container, and the output of which is connected to the pipeline (403), the liquid pump being electrically connected to the controller for simulating the action of delivering liquid into the syringe when the plunger is automatically withdrawn under the pressure of the human body itself.
5. A puncture/cannula training medium supply system as claimed in claim 1, characterized in that the medium supply means (500) comprise a gas supply means and a liquid supply means, the gas supply means being a gas pump, the liquid supply means comprising a liquid pump and at least one liquid container, each liquid container being provided with a respective normally closed solenoid valve, a liquid being provided in the liquid container, the liquid pump and the gas pump being electrically connected to the controller, respectively, the liquid in the liquid container being fed into the pipeline (403) via the liquid pump (524) when the liquid pump is in operation, the gas outlet end (529) of the gas pump being connected to the inlet of the pipeline (403), the gas pump, respectively, being electrically connected to the controller by the gas pump, the liquid pump.
6. A puncture/cannula training medium supply system as set forth in claim 3, wherein the liquid container is connected to an air outlet port, the air outlet port being controlled to be turned on and off by a fourth normally closed solenoid valve (528), the fourth normally closed solenoid valve (528) being electrically connected to the controller (402).
7. A method for simulating aspiration medium during puncture/intubation training, characterized in that a controller controls a medium supply device to output different mediums according to case settings so as to simulate aspiration medium operation, and the medium supply system for puncture/intubation training according to claim 1 is used for supplying the mediums.
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| CN201710839166.6A CN107833516B (en) | 2017-09-08 | 2017-09-08 | Medium supply system for puncture/intubation training and method for simulating aspiration medium |
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| CN201710839166.6A CN107833516B (en) | 2017-09-08 | 2017-09-08 | Medium supply system for puncture/intubation training and method for simulating aspiration medium |
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| CN107833516B true CN107833516B (en) | 2024-03-15 |
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| CN111653144B (en) * | 2020-07-13 | 2024-12-10 | 山东中医药高等专科学校 | A simulation training device for acupuncture needle techniques |
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