A system of intelligent pneumatic tourniquet
Patent Information
- Application Number
- CN202521001065.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-05-20
AI Technical Summary
[0004]由此可见,上述现有技术中,并未将驱血球整合到止血仪中,医护人员仍然需用使用传统手段进行驱血过程,使用时并不方便
[0014] I. The intelligent automatic pneumatic hemostat integrates the functions of a blood-expelling ball and a tourniquet. By using the blood-expelling ball and the tourniquet together, medical staff can more easily expel blood from the limbs with the blood-expelling ball and then use the tourniquet to achieve hemostasis. This makes the surgical field clearer and avoids excessive bleeding caused by excessive residual blood in the limbs.
Smart Images

Figure CN224748075U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hemostasis equipment technology, specifically a system of intelligent pneumatic tourniquet. Background Technology
[0002] Existing pneumatic hemostasis systems utilize an air pump to inflate a tourniquet, thereby applying pressure to the limb to stop bleeding. However, because these systems only stop bleeding, residual blood at the distal end of the limb often requires doctors to elevate the limb or wrap it with a bandage to allow the blood to flow back into the bloodstream. This method is ineffective at removing blood, leading to poor surgical visibility, increased surgical difficulty, and excessive blood loss in the patient.
[0003] For example, Chinese patent document CN204246190U, entitled "Intelligent Automatic Pneumatic Hemostasis Device," includes a data processing device and a connected display device, data acquisition device, and inflation / deflation device. The data acquisition device includes a pulse oximeter for detecting the occlusion pressure of the patient's limb and a pressure sensor for detecting the real-time pressure of the hemostatic cuff. The inflation / deflation device includes a hemostatic cuff and a connected air tube, an air pump for inflation, and a solenoid valve for deflation. The hemostatic cuff is a single-cavity or double-cavity cuff, comprising two cavities capable of alternating inflation and deflation. The pulse oximeter detects the occlusion pressure of the patient's limb, and the pressure required for hemostasis is set based on this occlusion pressure. This intelligent automatic pneumatic hemostasis device achieves the following technical effects: it eliminates the risk of irreversible damage to the patient's limb due to excessive cuff pressure or prolonged compression time, ensuring a clear surgical field and preventing bleeding.
[0004] Therefore, it is evident that the aforementioned existing technologies do not integrate blood-expelling cells into the hemostatic device, and medical personnel still need to use traditional methods to perform the blood-expelling process, which is inconvenient to use. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a system for an intelligent pneumatic tourniquet, which can solve the problems in the prior art.
[0006] This utility model is achieved through the following technical solution: A smart pneumatic tourniquet system of this utility model includes a smart automatic pneumatic tourniquet device. The smart automatic pneumatic tourniquet device includes a blood oxygen probe, a display button module, an ARM module, a blood-repelling cell module, and a tourniquet module. The ARM module establishes a signal connection with the blood oxygen probe, display button module, ARM module, blood-repelling cell module, and tourniquet module. The blood-repelling cell module includes blood-repelling cells, and the tourniquet module includes a tourniquet.
[0007] In a further technical solution, the intelligent automatic pneumatic hemostat is provided with a column at the bottom, and a bracket is provided at the bottom of the column.
[0008] In a further technical solution, the tourniquet module also includes an air tank, a first air pump, a solenoid valve, and a pressure sensor. The first air pump and the solenoid valve establish a signal connection with the ARM module, and the first pressure sensor, the air tank, the tourniquet, the first air pump, and the solenoid valve establish an air circuit connection.
[0009] In a further technical solution, the ARM module collects pressure data from the first pressure sensor. When the tourniquet is connected to the air outlet of the host machine, the tourniquet pressure is consistent with the air tank pressure. The tourniquet pressure is measured by detecting the air tank pressure through the first pressure sensor.
[0010] In a further technical solution, the first pressure sensor establishes an air circuit connection with the air storage tank, the tourniquet establishes an air circuit connection with the air storage tank, the first air pump establishes an air circuit connection with the air storage tank, and the solenoid valve establishes an air circuit connection with the air storage tank.
[0011] A further technical solution includes a blood cell depletion module, which also includes a pressure sensor, a second air pump, a first three-way valve, and a second three-way valve. The second air pump, the first three-way valve, and the second three-way valve establish a signal connection with the ARM module. The ARM module collects pressure data from the second pressure sensor, and the second air pump, the first three-way valve, the second three-way valve, the second pressure sensor, and the blood cell depletion module establish an air circuit connection.
[0012] In a further technical solution, the second air pump is connected to the air circuits of the first three-way valve and the second three-way valve, the first three-way valve and the second three-way valve are connected to the air circuit of the blood cell depletion device, and the second pressure sensor is connected to one side of the air circuit between the first three-way valve, the second three-way valve and the blood cell depletion device.
[0013] The beneficial effects of this utility model are:
[0014] I. The intelligent automatic pneumatic hemostat integrates the functions of a blood-expelling ball and a tourniquet. By using the blood-expelling ball and the tourniquet together, medical staff can more easily expel blood from the limbs with the blood-expelling ball and then use the tourniquet to achieve hemostasis. This makes the surgical field clearer and avoids excessive bleeding caused by excessive residual blood in the limbs.
[0015] 2. The patient's peripheral heart rate is detected by a pulse oximeter. During the detection, the tourniquet applied to the limb is slowly inflated. When the heart rate detected by the pulse oximeter disappears, the measured pressure is the limb occlusion pressure (LOP). Then, a safe fluctuation value is added based on the LOP as the working inflation pressure of the tourniquet. That is, add 40 mmHg when LOP < 130 mmHg, add 60 mmHg when LOP is between 131 and 190 mmHg, and add 80 mmHg when LOP > 190 mmHg, so as to achieve the function of tourniquet in comfortably stopping bleeding in the limb. Attached Figure Description
[0016] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the overall system structure of an intelligent pneumatic tourniquet according to the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of a blood cell;
[0019] Figure 3 A diagram illustrating the use of hemostatic cells and tourniquets on the hand;
[0020] Figure 4 A block diagram showing the electrical connections of an intelligent automatic pneumatic hemostat.
[0021] In the figure, there is a support 11, a column 12, and an intelligent automatic pneumatic hemostat 13. Detailed Implementation
[0022] like Figures 1-4 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationships are consistent in all directions (up, down, left, right, front, back). This utility model discloses an intelligent pneumatic tourniquet system, including an intelligent automatic pneumatic tourniquet device 13. The device 13 has a column 12 at its bottom, and a support 11 at the bottom of the column 12. The device 13 includes a blood oxygen probe, a display button module, an ARM module, a hemostatic cell module, and a tourniquet module. The ARM module establishes a signal connection with the blood oxygen probe, display button module, ARM module, hemostatic cell module, and tourniquet module. The hemostatic cell module includes hemostatic cells, and the tourniquet module includes a tourniquet. The intelligent automatic pneumatic tourniquet device 13 controls the hemostatic cells and tourniquet... The tourniquet is inflated and deflated. When using a tourniquet, it is simply placed on the limb. The blood-dripping cell is moved around on the limb to drive blood flow. The patient's peripheral heart rate is detected by a pulse oximeter. During the detection, the tourniquet is slowly inflated on the limb. When the heart rate detected by the pulse oximeter disappears, the measured pressure is the limb occlusion pressure (LOP). Then, a safe fluctuation value is added to the LOP as the working inflation pressure of the tourniquet. That is, add 40 mmHg when LOP < 130 mmHg, add 60 mmHg when LOP is between 131-190 mmHg, and add 80 mmHg when LOP > 190 mmHg, so as to achieve the function of tourniquet to comfortably stop bleeding on the limb.
[0023] Beneficially, the display button module is used for personnel to operate the intelligent automatic pneumatic hemostasis device 13.
[0024] Advantageously, the tourniquet module further includes an air tank, a first air pump, a solenoid valve, and a pressure sensor. The first air pump and the solenoid valve establish a signal connection with the ARM module, and the first pressure sensor, the air tank, the tourniquet, the first air pump, and the solenoid valve establish an air circuit connection. The ARM module collects pressure data from the first pressure sensor.
[0025] Advantageously, when the tourniquet is connected to the air outlet of the main unit, the tourniquet pressure is consistent with the air tank pressure, and the tourniquet pressure can be measured by detecting the air tank pressure through the first pressure sensor.
[0026] Advantageously, the first pressure sensor establishes an air circuit connection with the air tank, the tourniquet establishes an air circuit connection with the air tank, the first air pump establishes an air circuit connection with the air tank, and the solenoid valve establishes an air circuit connection with the air tank. The first pressure sensor detects the pressure of the air tank to measure the pressure of the tourniquet. After the air tank supplies air to the tourniquet, the tourniquet can be inflated to achieve the hemostasis function. The first air pump supplies air to the air tank, and the solenoid valve controls the air outlet of the air tank and the tourniquet to achieve the function of stopping the tourniquet from working. The other end of the solenoid valve is connected to an external air outlet to achieve the function of air outlet.
[0027] Advantageously, the blood cell depletion module also includes a pressure sensor, a second air pump, a first three-way valve, and a second three-way valve. The second air pump, the first three-way valve, and the second three-way valve establish a signal connection with the ARM module. The ARM module collects pressure data from the second pressure sensor, and the second air pump, the first three-way valve, the second three-way valve, the second pressure sensor, and the blood cell depletion module establish an air circuit connection.
[0028] Advantageously, the second air pump is connected to the air circuits of the first three-way valve and the second three-way valve, the other port of the first three-way valve and the second three-way valve is connected to the air circuit of the blood cell depletion device, and the second pressure sensor is connected to one side of the air circuit between the first three-way valve, the second three-way valve and the blood cell depletion device to collect the pressure information of the blood cell depletion device.
[0029] Advantageously, when the blood-driving cells are inflated, the third port of the first three-way valve is opened, and after the second air pump works, air is drawn from the third port of the first three-way valve, and then inflated into the blood-driving cells after passing through the second three-way valve and the second pressure sensor. Personnel can achieve the blood-driving function by moving the inflated blood-driving cells.
[0030] Advantageously, when the blood cell is degassed, the third port of the second three-way valve is opened. After the second air pump works, the air inside the blood cell is discharged into the external space along the first three-way valve, the second air pump, and the third port of the second three-way valve, thus realizing the function of degassed blood cells. At this time, the blood cell can be removed from the person's limb.
[0031] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. A system for an intelligent pneumatic tourniquet, comprising an intelligent automatic pneumatic tourniquet device (13), the intelligent automatic pneumatic tourniquet device (13) comprising a blood oxygen probe, a display button module, an ARM module, a blood-repelling cell module, and a tourniquet module, characterized in that, The ARM module establishes a signal connection with the blood oxygen probe, the display button module, the ARM module, the blood cell depletion module, and the tourniquet module. The blood cell depletion module includes blood cells, and the tourniquet module includes a tourniquet.
2. The system of an intelligent pneumatic tourniquet according to claim 1, characterized in that: The intelligent automatic pneumatic hemostasis device (13) has a column (12) at its bottom, and a bracket (11) is provided at the bottom of the column (12).
3. The intelligent pneumatic tourniquet system according to claim 1, characterized in that: The ARM module collects pressure data from the first pressure sensor. When the tourniquet is connected to the air outlet of the host and is working, the tourniquet pressure is consistent with the air tank pressure. The tourniquet pressure is measured by detecting the air tank pressure through the first pressure sensor.
4. The intelligent pneumatic tourniquet system according to claim 3, characterized in that: The tourniquet module also includes an air tank, a first air pump, a solenoid valve, and a pressure sensor. The first air pump and the solenoid valve establish a signal connection with the ARM module, and the first pressure sensor, the air tank, the tourniquet, the first air pump, and the solenoid valve establish an air circuit connection.
5. The system of an intelligent pneumatic tourniquet according to claim 3, characterized in that: The first pressure sensor establishes an air circuit connection with the air tank, the tourniquet establishes an air circuit connection with the air tank, the first air pump establishes an air circuit connection with the air tank, and the solenoid valve establishes an air circuit connection with the air tank.
6. A system for an intelligent pneumatic tourniquet according to any one of claims 1-5, characterized in that: The blood cell depletion module also includes a pressure sensor, a second air pump, a first three-way valve, and a second three-way valve. The second air pump, the first three-way valve, and the second three-way valve establish a signal connection with the ARM module. The ARM module collects pressure data from the second pressure sensor. The second air pump, the first three-way valve, the second three-way valve, the second pressure sensor, and the blood cell depletion module establish an air circuit connection.
7. The system of an intelligent pneumatic tourniquet according to claim 6, wherein the second air pump is connected to the air circuits of the first three-way valve and the second three-way valve, the first three-way valve and the second three-way valve are connected to the air circuit of the blood-driving cell, and the second pressure sensor is connected to one side of the air circuit between the first three-way valve, the second three-way valve and the blood-driving cell.
Citation Information
Patent Citations
Intelligent automatic air hemostat
CN204246190U