Intelligent pressurizing tourniquet

The automated design of the intelligent pressurized tourniquet solves the problems of inaccurate pressure control and time-consuming and labor-intensive manual adjustment of traditional tourniquets, achieving an efficient and safe hemostasis process. It is suitable for different groups of people and improves blood collection efficiency and safety.

CN120643275APending Publication Date: 2025-09-16TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Application Number
CN202510855163.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

Traditional tourniquets have inaccurate pressure control, causing pain and skin allergies, and require manual adjustment, which is time-consuming and labor-intensive. They are especially inefficient in emergency or large-scale blood collection scenarios, and there is a safety hazard of forgetting to release the tourniquet, leading to limb ischemia and necrosis.

Method used

An intelligent pressurized tourniquet has been designed, which includes a binding ring, an airbag device and a processing module. It automatically tightens and loosens through the driving gear, and automatically increases and releases pressure in combination with the inflation and deflation of the airbag. It is equipped with a pressure sensor and a timer to ensure force and time control, and has a built-in inner membrane and an electronic screen display. It is suitable for people of different age groups.

Benefits of technology

It realizes the automated hemostasis process, improves the operating comfort and efficiency, avoids discomfort and safety hazards, is suitable for children and adults, and reduces the workload of medical staff.

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Abstract

The invention relates to the technical field of medical equipment, in particular to an intelligent compression tourniquet, which comprises a binding ring belt, a compression tourniquet body and a compression tourniquet body, the binding ring belt is used for sleeving an arm of a patient and comprises a ring belt and a driving gear, and the ring belt is tightened or loosened through the driving gear; the air bag device comprises an outer-layer air bag and an inflation and deflation mechanism, and the outer-layer air bag is embedded in the inner layer of the ring belt and used for achieving inflation pressurization and deflation decompression; the processing module is connected with the binding ring belt, the pressure sensor, the air bag device and the timer and used for controlling the driving gear to rotate in the first direction and tightening the binding ring belt when the binding ring belt sleeves the arm of the patient and reaches the binding position; the control device is further used for controlling the inflation and deflation mechanism to inflate the outer-layer air bag to achieve hemostasis and pressurization, controlling the inflation and deflation mechanism to deflate the outer-layer air bag and controlling the driving gear to rotate in the second direction and loosen the binding ring belt when the preset duration is reached, and the two hands of medical workers are liberated through automatic binding of the tourniquet and automatic pressure relief and unbinding, so that the medical workers can conveniently and rapidly carry out hemostasis. And the blood sampling efficiency is also improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an intelligent pressurized tourniquet. Background Art

[0002] Tourniquets are often used during routine blood drawing and infusion. Traditional tourniquets use rubber tourniquets that are manually tied and pressure controlled to stop bleeding. However, due to different techniques used by different operators, pressure control is often not in place, which can easily cause pain and skin allergies, and is especially unfriendly to pediatric patients.

[0003] Traditional tourniquets are often forgotten by medical staff, leading to limb ischemia and necrosis, posing a safety hazard. Moreover, medical staff need to manually adjust the tightness, which is time-consuming and laborious, especially in emergency or large-scale blood collection scenarios, which is relatively inefficient.

[0004] Therefore, how to provide an intelligent tourniquet to improve blood collection efficiency and safety is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In view of the above problems, the present invention provides an intelligent pressure tourniquet that overcomes the above problems or at least partially solves the above problems.

[0006] The present invention provides an intelligent pressure tourniquet, comprising:

[0007] A binding belt, used for being put on the patient's arm, comprises a belt and a driving gear, wherein the belt is tightened or loosened by the driving gear;

[0008] The airbag device includes an outer airbag and an inflation and deflation mechanism. The outer airbag is embedded in the inner layer of the annular belt and is used to achieve inflation and deflation.

[0009] The processing module is connected to the binding ring belt, the airbag device and the timer, and is used to control the driving gear to rotate in a first direction to tighten the ring belt when the binding ring belt is placed on the patient's arm and reaches the binding position; it is also used to control the inflation and deflation mechanism to inflate the outer airbag to achieve hemostasis and pressurization, and when the preset time is reached, control the inflation and deflation mechanism to deflate the outer airbag and control the driving gear to rotate in a second direction to loosen the ring belt.

[0010] Preferably, it further comprises: a pressure sensor, which is arranged inside the binding ring and connected to the processing module, and is used to monitor the tightening force;

[0011] The processing module is used to determine whether the tightening force reaches a threshold value, and if so, control the driving gear to stop rotating.

[0012] Preferably, it also includes:

[0013] An inner membrane folding storage mechanism, used for storing a plurality of inner membranes, wherein the inner membranes are used for lining between the binding ring and the patient's arm;

[0014] The clamping part is arranged on the inner ring of the binding ring belt, and the inner ring of the binding ring belt is provided with a slide rail. By pushing the clamping part, the clamping part clamps an inner membrane and moves along the slide rail, thereby realizing the renewal and replacement of the inner membrane.

[0015] Preferably, the inner membrane folding storage mechanism comprises:

[0016] A fixed part and a movable conveyor belt, wherein the movable conveyor belt surrounds the periphery of the fixed part, and the inner films are sequentially connected and wound around the outside of the movable conveyor belt.

[0017] Preferably, it also includes:

[0018] The electronic screen is set on the outside of the binding ring and is used to display the timing and the remaining amount of endometrium.

[0019] Preferably, the electronic screen is further used for:

[0020] Displays cartoon playback or video teaching videos.

[0021] Preferably, the electronic screen further includes:

[0022] A speaker module is used to provide encouraging voice to soothe the emotions of child patients.

[0023] Preferably, it also includes:

[0024] The battery module is used to supply power to the binding ring, the airbag device and the processing module respectively.

[0025] Preferably, the airbag device further includes: an inner airbag, which is arranged on the inner circle of the outer airbag and is used to further adjust and increase the pressure.

[0026] Preferably, the processing module is further configured to:

[0027] When used on children, control the pressure range to 20-120 mmHg;

[0028] When used by adults, control the pressure range between 80 and 140 mmHg.

[0029] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0030] The present invention provides an intelligent pressurized tourniquet, comprising: a binding ring belt, which is used to be sleeved on the patient's arm, comprising a ring belt and a driving gear, and the ring belt is tightened or loosened by the driving gear; an airbag device, comprising an outer airbag and an inflation and deflation mechanism, the outer airbag being embedded in the inner layer of the ring belt, and being used to achieve inflation and pressurization and deflation and decompression; a processing module, connected to the binding ring belt and the airbag device, and used to control the driving gear to rotate in a first direction to tighten the binding ring belt when the binding ring belt is sleeved on the patient's arm and reaches the binding position; and further used to control the inflation and deflation mechanism to inflate the outer airbag to achieve hemostasis and pressurization, and to time the pressurization maintenance time through a timer. When the time reaches a preset time, the inflation and deflation mechanism is controlled to deflate the outer airbag, and the driving gear is controlled to rotate in a second direction to loosen the binding ring belt. By automatically binding the tourniquet and automatically releasing the pressure, the hands of medical staff are freed, and the blood collection efficiency is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. Throughout the drawings, the same reference figures denote the same components. In the drawings:

[0032] Figure 1 A schematic structural diagram of an intelligent pressure tourniquet in an embodiment of the present invention is shown;

[0033] Figure 2 A structural schematic diagram of the inner membrane folding storage structure in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0034] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0035] Example 1:

[0036] The embodiment of the present invention provides an intelligent compression tourniquet, such as Figure 1 Shown, including:

[0037] The binding belt 101 is used to be put on the patient's arm, including a belt and a driving gear, and the belt is tightened or loosened by the driving gear;

[0038] The airbag device 102 includes an outer airbag and an inflation and deflation mechanism. The outer airbag is embedded in the inner layer of the annular belt and is used to achieve inflation and deflation.

[0039] The processing module 104 is connected to the binding ring belt 101 and the airbag device 102, and is used to control the driving gear to rotate in a first direction to tighten the ring belt when the binding ring belt 101 is put on the patient's arm and reaches the binding position; it is also used to control the inflation and deflation mechanism to inflate the outer airbag to achieve hemostasis and pressurization, and when the preset time is reached, control the inflation and deflation mechanism to deflate the outer airbag and control the driving gear to rotate in a second direction to loosen the ring belt.

[0040] Tourniquets are used during infusion or blood draws, but conventional tourniquets are not only uncomfortable but also time-consuming and labor-intensive, making them difficult to operate. The intelligent pressurized tourniquet provided by the present invention not only automatically applies pressure to stop bleeding but also releases pressure at a fixed time, improving operator comfort and efficiency.

[0041] In an embodiment of the present invention, the band is widened to avoid discomfort caused by pressure. One end of the band is wrapped around the drive gear, and the band can be tightened when the drive gear rotates in a first direction and loosened when the drive gear rotates in a second direction, the first direction and the second direction being opposite.

[0042] The ring belt can be set to large, medium or small, which is suitable for people of different age groups. For people of different age groups, the size can be set directly to improve adjustment efficiency.

[0043] The airbag device 102 includes an outer airbag and an inflation / deflation mechanism. The outer airbag is embedded within the inner layer of the annular belt and is used to achieve inflation and deflation. The inflation / deflation mechanism is controlled by a motor. During inflation, air is pumped into the outer airbag, causing inflation. During deflation, the air is slowly expelled from the outer airbag, causing deflation.

[0044] Pressure hemostasis is achieved through airbag pressurization. Moreover, this process is automatically achieved after the binding ring 101 is tightened, freeing the hands of medical staff and improving the efficiency of hemostasis.

[0045] After the airbag is inflated, the pressurization can be controlled to maintain a preset time. Specifically, the timer can be set according to the set time, for example, 2 minutes, 5 minutes, etc.

[0046] The pressurization duration is controlled to end after 2 minutes. Specifically, when the timer reaches a preset time, the processing module 104 prompts whether to deflate or continue pressurization. If blood collection is not completed at this time, the user can choose to continue pressurization by manually selecting "Continue" on the touch screen or by voice control, which controls the inflation and deflation mechanism to maintain pressurization. If blood collection is completed at this time, the inflation and deflation mechanism controls the outer airbag to deflate and the drive gear to rotate in the second direction. By controlling both deflation and relaxation simultaneously, the efficiency of hemostasis recovery is improved.

[0047] In an optional embodiment, the intelligent pressure tourniquet further includes: a pressure sensor, which is arranged inside the binding ring 101 and connected to the processing module 104 for monitoring the tightening force. The pressure sensor can be evenly distributed inside the binding ring 101.

[0048] The processing module 104 is further configured to determine whether the tightening force reaches a threshold value, and if so, control the driving gear to stop rotating.

[0049] Pressure monitoring is used to avoid excessive pressure causing patient discomfort, and to avoid insufficient pressure that fails to stop bleeding.

[0050] In an optional embodiment, the intelligent pressure tourniquet further includes:

[0051] The inner membrane folding storage mechanism is used to store multiple inner membranes, and the inner membranes are used to cushion between the binding ring 101 and the patient's arm;

[0052] The clamping part is arranged on the inner ring of the binding ring belt. The inner ring of the binding ring belt 101 is provided with a slide rail. By pushing the clamping part, the clamping part clamps an inner membrane and moves along the slide rail to realize internal renewal and replacement.

[0053] Specifically, if Figure 2 As shown, the inner membrane folding storage structure includes:

[0054] The fixed portion 201 and the movable conveyor belt 202 are wrapped around the fixed portion 201 , and the inner film 203 is sequentially connected and wrapped around the movable conveyor belt 202 .

[0055] Since the end of the endothelium is exposed, the clamping part can clamp the end of the endothelium and slide along the track to pull out the endothelium. The entire endothelium is sheathed outside the annulus, which can isolate the annulus from the patient's arm, thereby playing a role in safety and hygiene.

[0056] Moreover, each patient tears off the inner membrane 203 after use, and the inner membrane 203 can be replaced and updated when the next patient uses it.

[0057] In an optional embodiment, the intelligent pressurized tourniquet further includes: an electronic screen 105, which is arranged outside the binding ring 101 and is used to display the timing status and the remaining amount of the inner membrane.

[0058] Specifically, a fixed duration is set for each pressurization hemostasis, and the countdown is displayed on the electronic screen, so that the pressurization hemostasis duration can be clearly understood. Moreover, the amount of endometrium can also be counted to avoid timely storage when the endometrium is insufficient.

[0059] In an optional embodiment, the electronic screen 105 is further used to:

[0060] Display cartoons or educational videos. Since most children are afraid of injections or blood draws, playing cartoons or educational videos can effectively alleviate children's fear.

[0061] Moreover, the electronic screen is also provided with a speaker module for providing encouraging voices, which can soothe the emotions of child patients and facilitate the smooth progress of blood drawing or infusion.

[0062] The airbag device 102 also includes an inner airbag, positioned within the inner ring of the outer airbag, for further adjusting and increasing pressure. The inner airbag's pressure is lower than that of the outer airbag, allowing for further micro-pressure adjustment. This dual-layer pressure control allows for more precise pressure control.

[0063] In an optional embodiment, the intelligent compression tourniquet is suitable for use not only on children but also on adults. Therefore, processing module 103 is further configured to control the pressure range between 20 and 120 mmHg for children and between 80 and 140 mmHg for adults. This multi-mode control system is suitable for different populations. Furthermore, for children, more detailed pressure control ranges can be set for different age groups.

[0064] In an optional embodiment, the intelligent pressurized tourniquet further includes: a battery module for supplying power to the binding ring 101, the airbag device 102 and the processing module 103 respectively. The battery module specifically adopts a storage battery that can be charged and discharged for repeated use.

[0065] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0066] The present invention provides an intelligent pressurized tourniquet, comprising: a binding ring belt, which is used to be sleeved on the patient's arm, comprising a ring belt and a driving gear, and the ring belt is tightened or loosened by the driving gear; an airbag device, comprising an outer airbag and an inflation and deflation mechanism, the outer airbag being embedded in the inner layer of the ring belt, and being used to achieve inflation and pressurization and deflation and decompression; a processing module, which is connected to the binding ring belt and the airbag device, and is used to control the driving gear to rotate in a first direction to tighten the binding ring belt when the binding ring belt is sleeved on the patient's arm and reaches the binding position; and is also used to control the inflation and deflation mechanism to inflate the outer airbag to achieve hemostasis and pressurization, and when a preset time is reached, control the inflation and deflation mechanism to deflate the outer airbag, and control the driving gear to rotate in a second direction to loosen the binding ring belt. By automatically binding the tourniquet and automatically releasing the pressure, the hands of medical staff are freed, and the blood collection efficiency is also improved.

[0067] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0068] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An intelligent pressure tourniquet, characterized in that: include: A binding belt, used for being put on the patient's arm, comprises a belt and a driving gear, wherein the belt is tightened or loosened by the driving gear; The airbag device includes an outer airbag and an inflation and deflation mechanism. The outer airbag is embedded in the inner layer of the annular belt and is used to achieve inflation and deflation. The processing module is connected to the binding ring belt, the airbag device and the timer, and is used to control the driving gear to rotate in a first direction to tighten the ring belt when the binding ring belt is placed on the patient's arm and reaches the binding position; it is also used to control the inflation and deflation mechanism to inflate the outer airbag to achieve hemostasis and pressurization, and when the preset time is reached, control the inflation and deflation mechanism to deflate the outer airbag and control the driving gear to rotate in a second direction to loosen the ring belt.

2. The intelligent pressure tourniquet according to claim 1, characterized in that: Also includes: A pressure sensor is provided inside the binding ring and connected to the processing module to monitor the tightening force; The processing module is used to determine whether the tightening force reaches a threshold value, and if so, control the driving gear to stop rotating.

3. The intelligent pressure tourniquet according to claim 1, characterized in that: Also includes: An inner membrane folding storage mechanism, used for storing a plurality of inner membranes, wherein the inner membranes are used for lining between the binding ring and the patient's arm; The clamping part is arranged on the inner ring of the binding ring belt, and the inner ring of the binding ring belt is provided with a slide rail. By pushing the clamping part, the clamping part clamps an inner membrane and moves along the slide rail, thereby realizing the renewal and replacement of the inner membrane.

4. The intelligent pressure tourniquet according to claim 3, characterized in that: The inner membrane folding storage mechanism comprises: A fixed part and a movable conveyor belt, wherein the movable conveyor belt surrounds the periphery of the fixed part, and the inner films are sequentially connected and wound around the outside of the movable conveyor belt.

5. The intelligent pressure tourniquet according to claim 3, characterized in that: Also includes: The electronic screen is set on the outside of the binding ring and is used to display the timing and the remaining amount of endometrium.

6. The intelligent pressure tourniquet according to claim 5, characterized in that: The electronic screen is also used for: Displays cartoon playback or video teaching videos.

7. The intelligent pressure tourniquet according to claim 1, characterized in that: The electronic screen also includes: A speaker module is used to provide encouraging voice to soothe the emotions of child patients.

8. The intelligent pressure tourniquet according to claim 1, characterized in that: Also includes: The battery module is used to supply power to the binding ring, the airbag device and the processing module respectively.

9. The intelligent pressure tourniquet according to claim 1, characterized in that: The airbag device further includes an inner airbag, which is arranged on the inner circle of the outer airbag and is used to further adjust and increase the pressure.

10. The intelligent pressure tourniquet according to claim 1, characterized in that: The processing module is further configured to: When used on children, control the pressure range to 20-120 mmHg; When used by adults, control the pressure range between 80 and 140 mmHg.