CN106601104B - Wound bleeding hemostasis model adopting air pressure sensor and using method thereof - Google Patents
Wound bleeding hemostasis model adopting air pressure sensor and using method thereof Download PDFInfo
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Abstract
The invention discloses a wound bleeding hemostasis model adopting an air pressure sensor and a using method thereof, wherein the model comprises the following components: the blood pressure balance water bag comprises an annular air pressure sensing air bag, a pressure sensor communicated with the annular air pressure sensing air bag, a control system electrically connected with the pressure sensor, a blood system electrically connected with the control system, and a pressure balance water bag connected with the blood system and used for adjusting the pressure in the blood system. Wherein the control system is capable of regulating the flow of blood within the blood system. When in use, the medical hemostatic bandage is bound on the annular air pressure sensing air bag. The wound bleeding hemostasis model has the advantages that the bundling pressure at any angle is equal, and medical workers can train wound bleeding hemostasis operation, so that the medical workers can quickly and skillfully master the hemostasis operation.
Description
Technical Field
The invention relates to a wound bleeding hemostasis model, in particular to a wound bleeding hemostasis model adopting an air pressure sensor and a using method thereof.
Background
Traumatic bleeding is the most common accidental injury we encounter, whether it is a knife cut impact or a car accident collision, and needs to be treated as soon as possible. The most common trauma in our life is as little as cut and scratch and as large-area hemorrhage after trauma. The blood volume of the general adult is 7-8 percent of the body weight (about 4000-; when the dosage exceeds 40%, the life is threatened, and symptoms such as unconsciousness, shock and the like appear. Therefore, in wound emergency treatment, rapid hemostasis is most important, and hemostasis is achieved only by uniform binding pressure.
At present, the domestic teaching model for simulating bleeding from trauma of four limbs of a human body and stopping bleeding adopts air bag sensing with a single fixed position, and is difficult to operate. When the tourniquet is used for binding, the binding pressure is unstable and is limited by the angle of the direction position during binding, and the sensing pressure is different from the binding position and angle.
Disclosure of Invention
The invention aims to provide a wound bleeding hemostasis model adopting an air pressure sensor and a using method thereof, the model solves the problems of difficult operation, unstable bundling pressure and the like in the prior art, the bundling pressure at any angle is equal, and the wound bleeding hemostasis model can help medical staff to train wound bleeding hemostasis operation, so that the medical staff can master the hemostasis operation quickly and skillfully.
In order to achieve the above object, the present invention provides a wound bleeding hemostasis model using a pressure sensor, the model comprising: the blood pressure balance water bag comprises an annular air pressure sensing air bag, a pressure sensor communicated with the annular air pressure sensing air bag, a control system electrically connected with the pressure sensor, a blood system electrically connected with the control system, and a pressure balance water bag connected with the blood system and used for adjusting the pressure in the blood system.
Wherein the control system is capable of regulating the flow of blood within the blood system.
When the tourniquet is in use, the medical tourniquet bandage is bound on the annular air pressure sensing air bag, and the annular air pressure sensing air bag deforms under the binding pressure.
The blood system comprises: the blood supply part, the diaphragm blood pump that is connected with the blood supply part, the arterial blood circulation part and the venous blood circulation part that are connected with the diaphragm blood pump.
Wherein, the diaphragm blood pump is electrically connected with the control system.
The blood supply component comprises: a blood bag was simulated.
The arterial blood circulation component comprises: the blood pump comprises an arterial blood loop communicated with the diaphragm blood pump and a plurality of first electromagnetic valves electrically connected with a control system.
The first electromagnetic valve is arranged on the arterial blood vessel loop and used for controlling the flow rate of arterial blood.
The arterial blood loop is a U-shaped pipeline, an arterial blood outlet is formed in the U-shaped pipeline, two ends of the U-shaped pipeline are communicated with the diaphragm blood pump, one end of the U-shaped pipeline is communicated with the pressure balance water bag, and the other end of the U-shaped pipeline is communicated with the venous blood circulation component.
The venous blood circulation component comprises: the venous blood vessel is communicated with the arterial blood vessel loop, and a plurality of second electromagnetic valves are electrically connected with the control system.
Wherein, the second electromagnetic valve is arranged on the vein blood vessel and used for controlling the flow rate of the vein blood.
Wherein, a venous bleeding opening is arranged on the venous vessel.
The annular air pressure sensing air bag is made of soft elastic plastic, and the diameter of the annular air pressure sensing air bag is 4 cm-45 cm.
The annular air pressure sensing air bag is communicated with the pressure sensor through an air pipeline.
And a display is arranged on the control system.
The invention also provides a method for simulating bleeding hemostasis of a wound by using the air pressure sensor, which is realized by using the bleeding hemostasis model of the wound by using the air pressure sensor and comprises the following steps:
step 1: setting a bleeding mode of a blood system in a control system, wherein the bleeding mode is an arterial bleeding mode when a first electromagnetic valve is opened and a second electromagnetic valve is closed, the bleeding mode is a venous bleeding mode when the second electromagnetic valve is opened and the first electromagnetic valve is closed, and the bleeding mode is an arteriovenous bleeding mode when the first electromagnetic valve and the second electromagnetic valve are simultaneously opened;
step 2: when an artery or vein bleeds, an operator uses a tourniquet to tie up the annular air pressure sensing air bag, and the pressure sensor receives the air pressure in the annular air pressure sensing air bag, converts the air pressure into an electric signal and sends the electric signal to the control system;
and 3, step 3: the control system judges the electric signal in the step 2 and a set standard value, the electric signal is the binding pressure, the binding pressure is divided into three states of insufficient pressure, moderate pressure and overlarge pressure, and a display displays the numerical value of the binding pressure; the binding pressure refers to the gas pressure in the annular air pressure sensing air bag under the binding of the tourniquet;
and 4, step 4: when the pressure is moderate, the control system controls the first electromagnetic valve or/and the second electromagnetic valve to be closed, and the wound hemostasis is successful; when the pressure is insufficient, the first electromagnetic valve or/and the second electromagnetic valve is still opened, and the hemostasis is unsuccessful; when the pressure is too high, the wound hemostasis is successful; the operator adjusts the bundling force according to the bundling pressure value to make the pressure moderate;
and 5: the binding hemostasis time can not exceed 1h each time, the tourniquet needs to be loosened slowly after 1h, and the step 1-4 is repeated after 10-15 min.
The moderate pressure refers to the bundling pressure of 250mmHg-300mmHg, the insufficient pressure refers to the bundling pressure of less than 250mmHg, and the excessive pressure refers to the bundling pressure of more than 300 mmHg.
The wound bleeding hemostasis model adopting the air pressure sensor and the using method thereof solve the problems of difficult operation, unstable bundling pressure and the like in the prior art, and have the following advantages:
(1) the annular air pressure sensing air bag is adopted in the model, so that when an operator (such as medical training personnel) operates, the binding pressure is the same when the annular air pressure sensing air bag is bound at any position, the binding pressure is stable, and the annular air pressure sensing air bag is not limited by any binding position and angle;
(2) the model and the method can judge whether the bundling pressure of an operator is proper or not in time through the control system, and can correct the operation error of the operator in time;
(3) the model and the method can visually enable an operator to see the condition of bleeding from the wound, so that the operator can adapt to the emergency rescue condition and help the operator to quickly and skillfully master the hemostasis operation.
Drawings
Fig. 1 is a schematic structural diagram of a wound bleeding hemostasis model using a pressure sensor according to the present invention.
Fig. 2 is a schematic flow chart of the method for simulating bleeding and hemostasis of a wound by using the air pressure sensor.
Fig. 3 is a schematic diagram of the application of the model of hemostasis by bleeding from trauma on an arm using a pressure sensor according to the present invention.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of a wound bleeding hemostasis model using a pressure sensor according to the present invention, the model including: the blood pressure control device comprises a ring-shaped air pressure sensing air bag 10, a pressure sensor 20 communicated with the ring-shaped air pressure sensing air bag 10, a control system 30 electrically connected with the pressure sensor 20, a blood system electrically connected with the control system 30, and a pressure balancing water bag 50 connected with the blood system and used for adjusting the pressure in the blood system. The control system 30 can regulate and control the flow of blood in the blood system, and a display is provided on the control system 30 to display the gas pressure in the annular air pressure sensing balloon 10. When the pressure balancing water bag 50 is in operation, a certain gas pressure exists in the pressure balancing water bag 50, and when the blood pressure in the blood system is too low to make the blood flow out, the pressure balancing water bag 50 automatically compensates the pressure to make the blood flow out.
In the use state, the medical hemostatic bandage is bound on the annular air pressure sensing air bag 10, and the annular air pressure sensing air bag 10 deforms (changes in shape and internal pressure) under the binding pressure.
The blood system includes: the blood supply part 41, the membrane blood pump 42 connected with the blood supply part 41, the arterial blood circulation part and the venous blood circulation part connected with the membrane blood pump 42. Wherein, the membrane blood pump 42 is electrically connected with the control system 30; the blood-supplying member 41 includes: the blood used in the simulated blood bag is a commercially available simulated blood.
The arterial blood circulation member includes: an arterial blood circuit 431 in communication with the membrane blood pump 42, and a plurality of first solenoid valves 432 electrically connected to the control system 30. The first solenoid valve 432 is provided on the arterial blood circuit 431 to control the flow rate of arterial blood. The arterial blood circuit 431 is a U-shaped pipe, on which an arterial bleeding port is provided, one end of which is communicated with the membrane blood pump 42 and the pressure balance water sac 50 through a three-way adapter, and the other end is communicated with the membrane blood pump 42 and the venous blood circulation component through a three-way adapter. The arterial blood circuit 431 may be made of materials including (but not limited to): PVC (PolyVinyl Chloride) transparent hose.
The venous blood circulation component comprises: a venous blood vessel 441 in communication with the arterial blood vessel circuit 431, and a plurality of second solenoid valves 442 electrically connected to the control system 30. The second solenoid valve 442 is provided on the venous blood vessel 441 for controlling the flow rate of venous blood. The venous blood vessel 441 is provided with a venous bleeding opening, and the venous blood vessel 441 is made of materials including (but not limited to): PVC (PolyVinyl Chloride) transparent hose.
Preferably, the number of the first electromagnetic valves 432 is two, the first electromagnetic valves are respectively arranged on two parallel pipelines of the U-shaped pipeline, the artery bleeding port is arranged in the middle of the U-shaped pipeline, the simulation blood flows out of the two parallel pipelines of the U-shaped pipeline through the U-shaped pipeline and is converged in the middle of the U-shaped pipeline, and flows out of the artery bleeding port, and the number of the second electromagnetic valves 442 is one, so that the bleeding amount and the bleeding speed of the artery during bleeding can be visually and vividly displayed to be obviously larger than the bleeding amount and the bleeding speed of the vein.
The annular air pressure sensing bag 10 and the pressure sensor 20 are communicated through an air duct 60, the annular air pressure sensing bag 10 has the same shape and diameter as the upper arm or thigh of the human body, preferably, the diameter is 4cm to 45cm, soft elastic plastic is adopted, and the inner ring of the annular air pressure sensing bag 10 is provided with a lining. Because the annular air pressure sensing air bag 10 is annular (see fig. 1), the stress is the same no matter at any position or angle, the pressure in the annular air pressure sensing air bag 10 can be stabilized, and an operator can accurately master the bundling pressure when using the model of the invention.
As shown in fig. 3, in order to illustrate the use of the model for hemostasis of wound bleeding using a pressure sensor in an arm according to the present invention, the pressure sensor 20, the control system 30 and the blood system may be disposed in a control box, the annular pressure sensing bladder 10 is installed in the upper limb or lower limb prosthesis, such as the upper arm 1/3 or the thigh, the annular pressure sensing bladder 10 is connected to the pressure sensor 20 in the control box through the gas pipe 60, the arterial blood outlet in the control box is connected to the first arterial blood outlet 2 on the lower arm of the arm prosthesis through the arterial pipe 1, and the venous blood outlet in the control box is connected to the first venous blood outlet 4 on the lower arm of the arm prosthesis through the venous pipe 3. The materials used for the above-mentioned pipes include (but are not limited to): PVC (PolyVinyl Chloride) transparent hose.
The present invention also provides a method for simulating bleeding and hemostasis of a wound by using an air pressure sensor, as shown in fig. 2, which is a schematic flow chart of the method for simulating bleeding and hemostasis of a wound by using an air pressure sensor according to the present invention, and the method is implemented by using the above-mentioned model for bleeding and hemostasis of a wound by using an air pressure sensor, and comprises:
step 1 (S1): setting a bleeding mode of the blood system in the control system 30, wherein the bleeding mode is an arterial bleeding mode (bleeding from the arterial blood circuit 431 and simulating bleeding from the human artery) when the first solenoid valve 432 is opened and the second solenoid valve 442 is closed, the bleeding mode is a venous bleeding mode (bleeding from the venous blood vessel 441 and simulating bleeding from the human vein) when the second solenoid valve 442 is opened and the first solenoid valve 432 is closed, and the bleeding mode is an arteriovenous bleeding mode (bleeding from the arterial blood circuit 431 and the venous blood vessel 441 simultaneously and simulating bleeding from the human artery and the vein simultaneously) when the first solenoid valve 432 and the second solenoid valve 442 are opened simultaneously;
step 2 (S2): when bleeding from artery or vein, the operator uses the tourniquet to tie the annular air pressure sensing air bag 10, the pressure sensor 20 receives the air pressure inside the annular air pressure sensing air bag 10, and converts the air pressure into electric signal to send to the control system 30; the annular air pressure sensing air bag 10 is used as a model of four limbs (upper arm 1/3 or thigh) of a human body;
step 3 (S3): the control system 30 judges the electric signal in the step 2 and a set standard value, the electric signal is the binding pressure, the binding pressure is divided into three states of insufficient pressure, moderate pressure and overlarge pressure, and a display displays the numerical value of the binding pressure; the binding pressure refers to the gas pressure in the annular air pressure sensing air bag under the binding of the tourniquet;
step 4 (S4): when the pressure is moderate, the control system 30 controls the first electromagnetic valve 432 or/and the second electromagnetic valve 442 to be closed, and the wound hemostasis is successful; when the pressure is insufficient, the first electromagnetic valve 432 or/and the second electromagnetic valve 442 are still opened, and the hemostasis is unsuccessful; when the pressure is too high, the wound hemostasis is successful; the operator adjusts the bundling force according to the bundling pressure value to make the pressure moderate;
step 5 (S5): the binding hemostasis time cannot exceed 1h every time, the tourniquet needs to be loosened slowly after 1h, the step 1-4 is repeated after 10-15min, and the limbs are injured due to overlarge binding pressure and overlong binding time.
The moderate pressure means that the bundling pressure is 250mmHg-300mmHg, the insufficient pressure means that the bundling pressure is less than 250mmHg, and the excessive pressure means that the bundling pressure is more than 300 mmHg.
In conclusion, the wound bleeding hemostasis model adopting the air pressure sensor and the using method thereof can be used for teaching and training wound hemostasis of medical workers, and can correct operation errors of operators in time, so that the operators can adapt to emergency rescue conditions, and the operators can be helped to master hemostasis operation quickly and skillfully.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
1. A model for hemostasis in bleeding from wounds using a pressure transducer, the model comprising:
an annular air pressure sensing air bag (10),
a pressure sensor (20) communicated with the annular air pressure sensing air bag (10),
a control system (30) electrically connected to the pressure sensor (20),
a blood system electrically connected to the control system (30), and
a pressure balancing water bladder (50) connected to the blood system for regulating pressure within the blood system;
the control system (30) can regulate and control the flow of blood in the blood system;
when in use, the medical hemostatic bandage is bound on the annular air pressure sensing air bag (10), and the annular air pressure sensing air bag (10) deforms under the binding pressure;
the blood system comprises:
a blood supply member (41) for supplying blood,
a membrane blood pump (42) connected to the blood supply unit (41),
an arterial blood circulation component and a venous blood circulation component connected to a diaphragm blood pump (42);
the membrane blood pump (42) is electrically connected with the control system (30);
the arterial blood circulation component comprises:
an arterial blood circuit (431) in communication with the diaphragm blood pump (42), an
A plurality of first solenoid valves (432) electrically connected to the control system (30);
the first electromagnetic valve (432) is arranged on the arterial blood vessel loop (431) and is used for controlling the flow rate of arterial blood;
the arterial blood loop (431) is a U-shaped pipeline, an arterial blood outlet is arranged on the U-shaped pipeline, two ends of the U-shaped pipeline are communicated with the diaphragm blood pump (42), one end of the U-shaped pipeline is also communicated with the pressure balance water bag (50), and the other end of the U-shaped pipeline is also communicated with the venous blood circulation component.
2. The model for hemostasis and hemorrhage with wound of claim 1, wherein the blood-supplying member (41) comprises: a blood bag was simulated.
3. The model of claim 1, wherein the venous blood circulation component comprises:
a venous vessel (441) in communication with the arterial vessel circuit (431), and
a plurality of second solenoid valves (442) electrically connected to the control system (30);
the second electromagnetic valve (442) is arranged on the venous blood vessel (441) and is used for controlling the flow rate of venous blood; the vein vessel (441) is provided with a vein bleeding port.
4. The model of claim 1, wherein the annular air pressure sensing balloon (10) is made of soft elastic plastic with a diameter of 4-45 cm.
5. The model for hemostasis and hemorrhage with wound employing air pressure sensor as claimed in claim 1, wherein the annular air pressure sensing balloon (10) and the pressure sensor (20) are in communication via a gas conduit (60).
6. The model of claim 1, wherein the control system (30) is provided with a display.
7. A method for simulating bleeding hemostasis of a wound by using a pneumatic sensor, which is implemented by using the bleeding hemostasis model for a wound using a pneumatic sensor as claimed in any one of claims 1 to 6, and which comprises:
step 1: setting a bleeding mode of the blood system in the control system (30), wherein the bleeding mode is an arterial bleeding mode when the first electromagnetic valve (432) is opened and the second electromagnetic valve (442) is closed, the bleeding mode is a venous bleeding mode when the second electromagnetic valve (442) is opened and the first electromagnetic valve (432) is closed, and the bleeding mode is an arteriovenous bleeding mode when the first electromagnetic valve (432) and the second electromagnetic valve (442) are opened simultaneously;
and 2, step: when an artery or vein bleeds, an operator uses a tourniquet to tie the annular air pressure sensing air bag (10), the pressure sensor (20) receives the air pressure inside the annular air pressure sensing air bag (10) and converts the air pressure into an electric signal to be sent to the control system (30);
and 3, step 3: the control system (30) judges the electric signal in the step (2) and a set standard value, the electric signal is the binding pressure, the binding pressure is divided into three states of insufficient pressure, moderate pressure and overlarge pressure, and a display displays the numerical value of the binding pressure; the binding pressure refers to the gas pressure in the annular air pressure sensing air bag under the binding of the tourniquet;
and 4, step 4: when the pressure is moderate, the control system (30) controls the first electromagnetic valve (432) or/and the second electromagnetic valve (442) to be closed, and the wound hemostasis is successful; when the pressure is insufficient, the first electromagnetic valve (432) or/and the second electromagnetic valve (442) is still opened, and the hemostasis is unsuccessful; when the pressure is too high, the wound hemostasis is successful; the operator adjusts the bundling force according to the bundling pressure value to make the pressure moderate;
and 5: the binding hemostasis time can not exceed 1h each time, the tourniquet needs to be loosened slowly after 1h, and the step 1-4 is repeated after 10-15 min.
8. The method of claim 7, wherein the moderate pressure is a strapping pressure of 250mmHg to 300mmHg, the insufficient pressure is a strapping pressure of less than 250mmHg, and the excessive pressure is a strapping pressure of greater than 300 mmHg.
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| CN112325938B (en) * | 2020-10-30 | 2022-06-28 | 中国人民解放军陆军军医大学 | Upper limbs tourniquet effect measuring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303811A (en) * | 2008-04-29 | 2008-11-12 | 中国人民解放军军事医学科学院卫生装备研究所 | Model for training hemostasis operation of artery and vein |
| CN204755422U (en) * | 2015-06-25 | 2015-11-11 | 崴立机电（苏州）有限公司 | Loop circuit oil hydraulic system unit |
| CN204904688U (en) * | 2015-08-04 | 2015-12-23 | 苏州大学 | Heart blood circulation model |
| CN206726608U (en) * | 2017-02-28 | 2017-12-08 | 上海嘉奕医学科技有限公司 | A kind of traumatic bleeding hemostasis model using baroceptor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6790043B2 (en) * | 2002-03-28 | 2004-09-14 | Board Of Trustees Of The University Of Arkansas | Method and apparatus for surgical training |
| US20090011394A1 (en) * | 2006-04-14 | 2009-01-08 | Simquest Llc | Limb hemorrhage trauma simulator |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303811A (en) * | 2008-04-29 | 2008-11-12 | 中国人民解放军军事医学科学院卫生装备研究所 | Model for training hemostasis operation of artery and vein |
| CN204755422U (en) * | 2015-06-25 | 2015-11-11 | 崴立机电（苏州）有限公司 | Loop circuit oil hydraulic system unit |
| CN204904688U (en) * | 2015-08-04 | 2015-12-23 | 苏州大学 | Heart blood circulation model |
| CN206726608U (en) * | 2017-02-28 | 2017-12-08 | 上海嘉奕医学科技有限公司 | A kind of traumatic bleeding hemostasis model using baroceptor |
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