TWI818812B - Smart hemostasis device - Google Patents

Abstract

A smart hemostasis device is provided. The smart hemostasis device includes a pressurizer pump, an air pressure sensor, a shunt chamber, a first air pressure tourniquet, a pressure relief valve, a venous air valve, a second air pressure tourniquet and a microprocessor. The shunt chamber is connected to the pressurizer pump via a first communication tube. The first air pressure tourniquet is connected to the shunt chamber via a second communication tube. The pressure relief valve is connected to the shunt chamber via a third communication tube. The venous air valve is connected to the air pressure sensor via a fourth communication tube. The venous air valve is connected to the shunt chamber via a fifth communication tube. The second air pressure tourniquet is connected to the venous valve via a sixth communication tube. The venous air valve is used to open or close the sixth communication tube. The microprocessor is electrically connected to the pressurizer pump, pressure relief valve, air pressure sensor and venous air valve. The smart hemostasis device can provide appropriate pressure force to stop bleeding.

Description

Intelligent hemostatic device

The present invention relates to an intelligent hemostatic device, in particular to an intelligent hemostatic device with an inflatable tourniquet.

Since the blood pressure in the renal dialysis tube is usually high, when the drainage needle is removed, a large amount of blood will leak from the puncture point of the dialysis tube. Therefore, pressure must be applied to the needle insertion point until the puncture point of the dialysis tube and the wound on the arm are The blood coagulates.

Please refer to FIG. 1 , which is a schematic diagram of a traditional tourniquet 7 . Most kidney dialysis fistulas are bleeding by wrapping and binding the wound on the arm with a tourniquet 7 , which is a bandage made of elastic fiber. Therefore, when the pressure of the tourniquet 7 is too high, it is easy to cause the renal dialysis fistula to narrow and become embolized, causing insufficient blood supply to the terminal circulation and causing tissue hypoxia. On the contrary, when the pressure of the tourniquet 7 is insufficient, the wound of the renal dialysis fistula will not be able to stop bleeding, and the patient will be at risk of excessive blood loss.

In addition to the above-mentioned problems, the traditional tourniquet 7 also has the following shortcomings:

1. Unable to control the correct pressurization time.

2. Blood leakage from renal dialysis fistula cannot be detected in time.

3. It is impossible to know whether the patient removed the tourniquet early.

Therefore, how to improve the above-mentioned problems is worthy of consideration by those with ordinary knowledge in this field.

The object of the present invention is to provide an intelligent hemostatic device that can control the pressure and pressurization time of the tourniquet and also has the function of detecting bleeding.

The intelligent hemostasis device of the present invention includes a pressurizer pump, a pneumatic pressure sensor, a shunt chamber, a first pneumatic tourniquet, a pressure relief valve, a venous air valve, a second pneumatic tourniquet and a microprocessor. Wherein, the shunt chamber is connected to the pressurizer pump through a first communication pipe. The first pneumatic tourniquet is connected to the shunt chamber through a second communication tube. The pressure relief valve is connected to the shunt chamber through a third communication pipe. The venous air valve is connected to the air pressure sensor through a fourth communication tube, and the venous air valve is connected to the shunt chamber through a fifth communication tube. In addition, the second pneumatic tourniquet is connected to the venous air valve through a sixth communication tube, and the venous air valve is used to open or close the sixth communication tube. In addition, the microprocessor is electrically connected to the pressurizer pump, pressure relief valve, air pressure sensor and intravenous air valve.

The above-mentioned intelligent hemostatic device further includes a first blood bleed sensor, and the first blood bleed sensor is disposed on the first pneumatic tourniquet.

The above-mentioned intelligent hemostatic device further includes a first photoplethysmogram sensor, and the first photoplethysmogram sensor is disposed on the first pneumatic tourniquet.

The above-mentioned intelligent hemostatic device further includes a second bleeding sensor, and the second bleeding sensor is provided on the second pneumatic tourniquet.

The above-mentioned intelligent hemostatic device further includes a second photoplethysmography sensor, and the second photoplethysmography sensor is disposed on the second pneumatic tourniquet.

In the above-mentioned smart hemostatic device, the first blood bleed sensor and the second blood bleed sensor are used to detect whether a patient has bleeding, and the first photoplethysmogram sensor and the third The diphotoplethysmography sensor is used to measure the patient's heart rate value, blood oxygen value, and blood flow velocity value.

In the above-mentioned intelligent hemostatic device, when the air pressure sensed by the air pressure sensor reaches a first predetermined value, the microprocessor commands the venous air valve to close the sixth communication tube, and when the air pressure sensor When the sensed air pressure reaches a second predetermined value, the microprocessor commands the pressurizer pump to stop inflating.

The above-mentioned intelligent hemostasis device also includes a display screen, which is electrically connected to the microprocessor and is used to display the patient's heart rate value, blood oxygen value and blood flow velocity value.

The above-mentioned intelligent hemostasis device also includes an energy storage module that is electrically connected to the microprocessor, the pressurizer pump, and the air pressure sensor.

The above-mentioned intelligent hemostasis device also includes a wireless transmission module, the wireless transmission module is electrically connected to the microprocessor, and the wireless transmission module is network connected to a cloud server.

The invention has the following advantages:

1. Helps control the correct pressure path

2. Helps control the correct pressurization time.

3. Helps in timely detection of blood leakage from renal dialysis fistula.

4. It can be known whether the patient removed the tourniquet early.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings.

10: Intelligent hemostatic device

11: Pressurizer pump

12:Air pressure sensor

13:Triage room

14: The first pneumatic tourniquet

15: Pressure relief valve

16:Venous air valve

17: Second pneumatic tourniquet

18:Microprocessor

19: The first blood bleed sensor

21: First photoplethysmography sensor

22: Second blood bleed sensor

23: Second photoplethysmography sensor

24:Display screen

25:Energy storage module

26:Wireless transmission module

7: Traditional tourniquet

81:First connecting pipe

82:Second connecting pipe

83:Third connecting pipe

84:Fourth connecting pipe

85:Fifth connecting pipe

86:Sixth connecting pipe

Figure 1 shows a schematic diagram of a traditional tourniquet 7.

2A and 2B are schematic diagrams of the smart hemostatic device 10 of this embodiment being used on the arm.

Please refer to FIGS. 2A and 2B , which are schematic diagrams of the smart hemostatic device 10 of this embodiment being used on the arm. In this embodiment, the intelligent hemostatic device 10 includes a pressurizer pump 11, a pressure sensor (Pressure Sensor) 12, a shunt chamber 13, a first pneumatic tourniquet 14, a pressure relief valve 15, a Venous air valve 16, a second pneumatic tourniquet 17, a microprocessor 18, a first bleeding sensor 19, a first photoplethysmography (PPG) sensor 21, a second bleeding blood sensor 22, second photoplethysmography (PPG) sensor 23, a display screen 24, an energy storage module 25 and a wireless transmission module 26. Among them, the microprocessor 18 is electrically connected to the pressurizer pump 11, the pressure relief valve 15, the air pressure sensor 12, the venous air valve 16, the first blood bleed sensor 19, and the first photoplethysmogram sensor. 21 , a second blood bleed sensor 22 , and a second photoplethysmogram sensor 23 . To be more specific, micro details The processor 18 is used to command the pressurizer pump 11, the pressure relief valve 15, the air pressure sensor 12, the venous air valve 16, the first bleed sensor 19, the first photoplethysmogram sensor 21, and the The second blood bleed sensor 22 and the second photoplethysmogram sensor 23 operate.

In the above, the first pneumatic tourniquet 14 is wrapped around the wound of the patient's arterial fistula, and the first pneumatic tourniquet 14 is connected to the shunt chamber 13 through a second communication tube 82 . Furthermore, the branch chamber 13 is connected to the pressurizer pump 11 via a first communication pipe 81 . Therefore, when the pressurizer pump 11 receives the command from the microprocessor 18 to operate, the pressurizer pump 11 can control the first pneumatic hemostasis through the first communication tube 81 , the shunt chamber 13 and the second communication tube 82 . The band 14 is inflated so that the first pneumatic tourniquet generates compressive force to force the arterial fistula wound to stop bleeding.

In addition, the second pneumatic tourniquet 17 is wrapped around the wound of the patient's venous fistula, the second pneumatic tourniquet 17 is connected to the venous air valve 16 through a sixth communication tube 86, and the venous air valve 16 is connected through a sixth connecting tube 86. The fifth communication pipe 85 connects the distribution chamber 13 . Therefore, when the pressurizer pump 11 receives a command from the microprocessor 18 to operate, the pressurizer pump 11 can pass through the first communication tube 81 , the shunt chamber 13 and the fifth communication tube 85 , the venous air valve 16 and The sixth communication tube 86 inflates the second pneumatic tourniquet 17 so that the second pneumatic tourniquet generates a compressive force to force the wound of the vein to stop bleeding.

In this embodiment, the microprocessor 18 can command the intravenous air valve 16 to open or close the sixth communication tube 86 . For example, when the air pressure sensed by the air pressure sensor 12 reaches a first predetermined value, the intravenous air valve 16 will close the sixth communication tube 86; in this way, the gas delivered by the pressurizer pump 11 will only It is introduced into the first pneumatic tourniquet 14 but not into the second pneumatic tourniquet 17 . This helps the first pneumatic tourniquet 14 continue to increase the wrapping and binding pressure on the wound of the arterial fistula (compared to the wound of the venous fistula, the wound of the arterial fistula requires greater compressive force to stop bleeding).

In addition, the venous air valve 16 is connected to the air pressure sensor 12 through a fourth communication tube 84, so when the venous air valve 16 opens the sixth communication tube 86, according to Pascal's principle, the air pressure sensor 12 can The internal pressures of the first pneumatic tourniquet 14 and the second pneumatic tourniquet 17 are detected.

In this embodiment, when the air pressure sensed by the air pressure sensor 12 reaches a second predetermined value, the microprocessor 18 commands the pressurizer pump 11 to stop inflating. Here, the first predetermined value refers to the pressure value that can prevent the wound corresponding to the venous fistula from continuing to ooze blood, and the second predetermined value refers to the pressure value that can prevent the wound corresponding to the arterial fistula from continuing to ooze blood.

In addition, the pressure relief valve 15 is connected to the shunt chamber 13 through a third communication pipe 83, and the pressure relief valve 15 deflates the first pneumatic tourniquet 14 through the third communication pipe 83, the shunt chamber 13 and the second communication pipe 82. . In a similar manner, the pressure relief valve 15 can simultaneously deflate the second pneumatic tourniquet 17 through the third communication tube 83 , the shunt chamber 13 , the fifth communication tube 85 , the venous air valve 16 and the sixth communication tube 86 . Therefore, compared with the traditional tourniquet 7, the intelligent hemostasis device 10 of this embodiment can adjust the pressure to suit the wound of arterial fistula and the wound of venous fistula through the pressurizer pump 11, air pressure sensor 12 and pressure relief valve 15. Pressure Road.

In addition, since the pressurizer pump 11 and the pressure relief valve in this case are operated by commands from the microprocessor 18, the intelligent hemostasis device 10 can control the pressurization time required for the wound (general pressure) through the microprocessor 18. The time it takes for the wound to stop bleeding is usually about 2 hours).

Referring to FIG. 2B , the first bleeding sensor 19 is disposed on the first pneumatic tourniquet 14 , and the second bleeding sensor 22 is disposed on the second pneumatic tourniquet 17 . Among them, the first blood leakage sensor 19 corresponds to the position of the wound of the arterial fistula, and the second blood leakage sensor 22 corresponds to the position of the wound of the venous fistula. The first blood leakage sensor 19 and the second blood leakage sensor 19 correspond to the position of the wound of the arterial fistula. The blood leakage sensor 22 is used to detect whether the patient's wound is bleeding. In this embodiment, when slight bleeding is detected, the device emits two long "beep-beep-" prompts and immediately increases the pressure time of the wound. In addition, when severe bleeding is detected, the device will continuously beep for a long time and immediately increase the pressure on the wound.

In addition, the first photoplethysmogram sensor 21 is disposed on the first pneumatic tourniquet 14 , and the second photoplethysmogram sensor 23 is disposed on the second pneumatic tourniquet 17 . Among them, the first photoplethysmogram sensor 21 and the second photoplethysmogram sensor 23 are used to measure the patient's heart rate value, blood oxygen value and blood flow velocity value. Moreover, the display screen 24 is used to display the measured heart rate value, Blood oxygen value and blood flow velocity value. In addition, the wireless transmission module 26 uploads the measured heart rate value, blood oxygen value and blood flow velocity value to a cloud server (not shown). In this way, multiple health data of the patient can be observed for a longer period of time. In addition, during the process of continuously applying pressure to the wound, if the cloud server does not receive the patient's health data, it can be known that the patient may have removed the first pneumatic tourniquet 14 or the second pneumatic tourniquet early. Take 17.

In addition, the energy storage module 25 is, for example, a lithium battery. The energy storage module 25 is electrically connected to the microprocessor 18 , the pressurizer pump 11 , the air pressure sensor 12 and the display screen 24 . Specifically, the energy storage module 25 is used to provide power to the microprocessor 18, the pressurizer pump 11, the air pressure sensor 12 and the display screen 24.

To sum up, the intelligent hemostatic device 10 of the present invention can inflate and pressurize or exhaust and depressurize according to the wounds of arterial fistulas and venous fistulas.

Although the present invention has been disclosed above in terms of preferred embodiments, they are not intended to limit the present invention. Anyone with ordinary skill in the art may make slight changes and modifications without departing from the spirit and scope of the present invention. , therefore, the protection scope of the present invention shall be subject to the scope of the appended patent application.

10: Intelligent hemostatic device

11: Pressurizer pump

12:Air pressure sensor

13:Triage room

14: The first pneumatic tourniquet

15: Pressure relief valve

16:Venous air valve

17: Second pneumatic tourniquet

18:Microprocessor

24:Display screen

25:Energy storage module

26:Wireless transmission module

81:First connecting pipe

82:Second connecting pipe

83:Third connecting pipe

84:Fourth connecting pipe

85:Fifth connecting pipe

86:Sixth connecting pipe

Claims (8)

An intelligent hemostatic device, including: a pressurizer pump; an air pressure sensor; a shunt chamber connected to the pressurizer pump via a first communication tube; a first pneumatic tourniquet via a second communication tube The tube is connected to the shunt chamber; a first bleeding sensor is arranged on the first pneumatic tourniquet; a pressure relief valve is connected to the shunt chamber via a third communication tube; a venous air valve is connected to the shunt chamber via a first The four-connected pipe is connected to the air pressure sensor, and the venous air valve is connected to the shunt chamber through a fifth connecting pipe; a second pneumatic tourniquet is connected to the venous air valve through a sixth connecting pipe, and the venous air valve is connected to the shunt chamber through a fifth connecting pipe. The valve is used to open or close the sixth communication pipe; and a microprocessor is electrically connected to the pressurizer pump, the pressure relief valve, the air pressure sensor and the venous air valve. The intelligent hemostatic device according to claim 1 further includes a first photoplethysmogram sensor, and the first photoplethysmogram sensor is disposed on the first pneumatic tourniquet. The intelligent hemostatic device according to claim 1 further includes a second bleeding sensor, and the second bleeding sensor is provided on the second pneumatic tourniquet. The intelligent hemostatic device according to claim 3 further includes a second photoplethysmogram sensor, and the second photoplethysmography sensor is disposed on the second pneumatic tourniquet. The intelligent hemostatic device as described in claim 1, wherein when the air pressure sensed by the air pressure sensor reaches a first predetermined value, the microprocessor commands the venous air valve to close the sixth communication tube, and when the air pressure sensor When the air pressure sensed by the sensor reaches a second predetermined value, the microprocessor commands the pressurizer pump to stop inflating. The intelligent hemostatic device as described in any one of claims 1 to 5, further includes a display screen, the display screen is electrically connected to the microprocessor. The intelligent hemostatic device according to any one of claims 1 to 5, further comprising an energy storage module electrically connected to the microprocessor, the pressurizer pump, and the air pressure sensor device. The intelligent hemostatic device as described in any one of claims 1 to 5, further includes a wireless transmission module, the wireless transmission module is electrically connected to the microprocessor, and the wireless transmission module is network connected to a Cloud server.

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