Automatic hemostatic device for junction part
By designing an automatic hemostasis device, which combines an expansion element and a pressure detection element, the automatic adjustment of the pressure at the junction is achieved, solving the problem of unstable pressure in existing technologies and improving the hemostasis effect and safety in emergency situations.
Patent Information
- Application Number
- CN202422730134.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing hemostatic devices at junctions are difficult to maintain stable pressure in unsupervised environments and are prone to loosening during transport, leading to hemostasis failure. They also cannot automatically adjust the pressure when medical resources are scarce or during transport.
An automatic hemostasis device was designed, comprising a tourniquet body, an expansion element, a pressure detection element, and a control module. The device automatically adjusts the pressure through the expansion element and foam material package, and achieves real-time monitoring and automatic adjustment by combining the pressure detection element and the control module to ensure that the pressure is within a suitable range. It also automatically controls the expansion or contraction of the expansion element without supervision.
It achieves stable control of compression force in an unsupervised environment, reduces complications caused by excessive compression force, improves wearing comfort and stability, reduces the risk of loosening during patient transport, and ensures blood supply to the lower limbs.
Smart Images
Figure CN223504283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure hemostasis technology, and in particular to an automatic hemostasis device for junctional areas. Background Technology
[0002] In emergency situations, bleeding from groin and high leg injuries can only be controlled by compressing the femoral artery in the groin. However, in special circumstances, such as battlefields and large-scale natural disaster sites, there is often a shortage of medical personnel and long medical evacuation times, requiring more intelligent emergency equipment.
[0003] Existing hemostatic devices for junctional areas all use a bandage to secure the device around the pelvis, and most of them are inflated by hand holding the air bag. In an unsupervised environment, the inflated air bag can only maintain a constant pressure. If the tourniquet loosens during the transport of the injured person, it will lead to hemostasis failure. Some inflatable devices now use an air pump for inflation, which can reduce the workload to some extent. However, the inflated air bag can still only maintain a constant pressure. If the tourniquet needs to be loosened, it still requires manual control. Utility Model Content
[0004] The purpose of this invention is to provide an automatic hemostasis device for junctional areas to solve the problems existing in the prior art, stably fix it to the injured person, and automatically adjust the pressure.
[0005] To achieve the above objectives, this utility model provides the following solution:
[0006] This utility model provides an automatic hemostasis device for junctional areas, including a tourniquet body, an expansion element, a pressure detection element, and a control module. The tourniquet body can be formed into a ring and used to surround the patient's groin area, and the two ends of the tourniquet body can be detachably connected. The tourniquet body has the expansion element and several foam material packs on the side that contacts the patient. The expansion element is used to compress the patient's inguinal artery. The pressure detection element is installed on the side of the expansion element that contacts the patient. The pressure detection element and the control module are electrically connected, and the control module can control the expansion element to expand or contract according to the real-time pressure value detected by the pressure detection element.
[0007] Preferably, the expansion element is an inflatable compression airbag, and there are two inflatable compression airbags, each of which is provided with a pressure detection element.
[0008] Preferably, the system also includes an air pump, the air outlet of which is connected to the air inlet of the inflatable compression airbag, the air pump being connected to the control module, and the control module being able to control the opening and closing of the air pump.
[0009] Preferably, it also includes a deflation valve, which is connected to the air outlet of the inflatable compression airbag, and is electrically connected to the control module, which can control the opening and closing of the deflation valve.
[0010] Preferably, the pressure sensing element is an integrated sensor array.
[0011] Preferably, the control module is equipped with a display screen and an automatic control button. The display screen is used to display the pressure value detected by the pressure detection element in real time, and the automatic control button can control the opening and closing of the pressure detection element and the control module.
[0012] Preferably, there are multiple foam material packages, and the multiple foam material packages are arranged sequentially along the length direction of the tourniquet body; the foam material packages and the tourniquet body can be detachably connected.
[0013] Preferably, one end of the tourniquet body is provided with a buckle, and the other end of the tourniquet body is provided with a slot, and the buckle can be inserted into the slot.
[0014] Preferably, the tourniquet body has an adjustable band at one end for connecting the buckle, the adjustable band has a body Velcro, one end of the adjustable band is fixed to the tourniquet body, and the adjustable band can pass through the connecting ring on the buckle and allow the body Velcro to be pasted parallel to the buckle.
[0015] Preferably, it also includes two leg connecting straps, which are symmetrically arranged, and the upper ends of the two leg connecting straps are connected to the lower side of the tourniquet body. The width of the leg connecting straps gradually increases from the direction closer to the tourniquet body, and the lower end of the leg connecting straps is fixed with an elastic band. The elastic band can drive the leg connecting straps to form a ring and be used to wrap around the patient's thigh. The two ends of the elastic band are fixed by leg Velcro.
[0016] The present invention achieves the following technical advantages over the prior art:
[0017] This invention provides an automatic hemostasis device for the junction area. The tourniquet body can be formed into a ring and used to wrap around the patient's groin. Both ends of the tourniquet body are detachable, facilitating the wearing and removal of the tourniquet. The tourniquet body has an expansion element and several foam material packs on the side that contacts the patient. The expansion element is used to compress the inguinal artery, thereby achieving hemostasis. After effective hemostasis is achieved, water is injected into the foam material packs using a syringe. The foam material packs absorb water and automatically expand and shape according to the patient's body shape to fit the pelvis and waist well, improving wearing comfort and stability, and reducing the risk of injury during transport. To prevent loosening and secondary injuries caused by bumpy transport, a pressure detection element is installed on the side of the expansion element that contacts the patient. This element is used to detect the pressure between the expansion element and the patient's body surface in real time. The pressure detection element is electrically connected to the control module, which can control the expansion element to expand or contract based on the real-time pressure value detected by the pressure detection element. In other words, it can time and automatically adjust the magnitude of the compression force based on the detection results. This solves the complications caused by excessive pressure and prolonged application of traditional emergency hemostatic compression devices. Furthermore, through the above design, the compression time can be automatically determined during unsupervised transport, and the contraction of the expansion element can be automatically controlled at regular intervals to ensure blood supply to the lower limbs. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the automatic hemostasis device at the junction of the present invention when it is deployed.
[0020] Figure 2 This is a schematic diagram of the automatic hemostasis device at the junction of the present invention when worn.
[0021] Figure 3 This is a schematic diagram showing the connection between the elastic adjustment band and the buckle in this utility model;
[0022] Figure 4 This is a schematic diagram of the control module, air pump, and air release valve in this utility model;
[0023] Figure 5 This is a schematic diagram of the arrangement of the integrated sensor array in this utility model;
[0024] Figure 6This is a schematic diagram of the integrated sensor array for detecting arteries in this utility model;
[0025] Figure 7 The pulse wave amplitude value of gradient transformation when the pressure sensor detects an artery in this utility model;
[0026] In the diagram: 1-Inflatable airbag, 2-Integrated sensor array, 3-Foam material package, 4-Control module, 5-Pressure sensor, 6-Air pump, 7-Deflator valve, 8-Snap fastener, 9-Slot, 10-Tightness adjustment strap, 11-Leg connecting strap, 12-Elastic strap, 13-Leg Velcro. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] The purpose of this invention is to provide an automatic hemostasis device for junctional areas to solve the problems existing in the prior art, stably fix it to the injured person, and at the same time, automatically adjust the pressure.
[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0030] like Figures 1-7As shown, this embodiment provides an automatic hemostasis device for the junction area, including a tourniquet body, an expansion element, a pressure detection element, and a control module 4. The tourniquet body can be formed into a ring and used to wrap around the patient's groin area, and the two ends of the tourniquet body can be detached and connected, thus facilitating the wearing and removal of the tourniquet body. The tourniquet body has an expansion element and several foam material packs 3 on the side that contacts the patient. The expansion element is used to compress the patient's inguinal artery, thereby achieving the effect of compression hemostasis. After achieving effective compression hemostasis, water is injected into the foam material packs 3 using a syringe, thereby causing the foam material packs 3 to absorb water and automatically expand and shape according to the patient's body shape to fit the shape of the human pelvis and waist, improving wearing comfort. The design ensures adaptability and stability, reducing loosening and secondary injuries caused by bumps during patient transport. A pressure detection element is installed on the side of the expansion element that contacts the patient and is used to detect the pressure between the expansion element and the patient's body surface in real time. The pressure detection element and the control module 4 are electrically connected, and the control module 4 can control the expansion element to expand or contract based on the real-time pressure value detected by the pressure detection element. That is, it can time and automatically adjust the magnitude of the compression force according to the detection results, solving the complications caused by excessive pressure and prolonged time of traditional emergency hemostatic compression devices. At the same time, through the above design, the compression time can be automatically determined during unsupervised transport, and the contraction of the expansion element can be automatically controlled at regular intervals to ensure blood supply to the lower limbs.
[0031] Specifically, the expansion element is an inflatable compression airbag 1, which can expand and contract the inflatable compression airbag 1 by inflating and deflating the airbag. There are two inflatable compression airbags 1, which are respectively set on both lower limbs. Each inflatable compression airbag 1 is equipped with a pressure detection element to realize the individual detection of the pressure of each inflatable compression airbag 1.
[0032] This embodiment also includes an air pump 6, which is a miniature air pump. The air outlet of the air pump 6 is connected to the air inlet of the inflatable compression airbag 1. The air pump 6 inflates the inflatable compression airbag 1 to increase the pressure. The air pump 6 is connected to the control module 4, and the control module 4 can control the opening and closing of the air pump 6 to achieve automatic inflation.
[0033] This embodiment also includes a deflation valve 7, which is connected to the air outlet of the inflatable compression airbag 1. The deflation valve 7 releases air from the inflatable compression airbag 1, thereby reducing the pressure by contracting the inflatable compression airbag 1. The deflation valve 7 is electrically connected to the control module 4, and the control module 4 can control the opening and closing of the deflation valve 7 to achieve automatic deflation.
[0034] The pressure detection element is an integrated sensor array 2. Through multi-point detection, it can detect pressure and pulse wave gradient changes in the area above and around the artery, thus locating the artery. When the pressure point is detected to shift or loosen, the signal is transmitted to the control module 4, which then triggers an audible and visual alarm.
[0035] The control module 4 is equipped with a display screen and automatic control buttons. The display screen shows the pressure value detected by the pressure detection element in real time for medical personnel to view. The automatic control buttons control the opening and closing of the pressure detection element and the control module 4, thereby controlling the automatic control function. This allows for automatic inflation and deflation in an unsupervised environment, based on the magnitude of the pressure and the duration of effective compression, achieving intermittent hemostasis and blood supply, effectively reducing the rate of lower limb necrosis and amputation in injured patients. Simultaneously, manual inflation and deflation are also possible when sufficient personnel are available.
[0036] There are multiple foam material packs 3, and the multiple foam material packs 3 are arranged sequentially along the length of the tourniquet body. This allows it to automatically conform to uneven areas of the pelvis and waist according to the different body types of the injured person. While achieving stable fixation, it does not put extra pressure on the injured person, thereby improving the comfort of use and the stability of wearing.
[0037] The foam material pack 3 can be detachably connected to the tourniquet body. The foam material pack 3 is a disposable item, and by replacing the foam material pack 3, the automatic hemostasis device at the junction can be reused.
[0038] One end of the tourniquet body is provided with a buckle 8, and the other end of the tourniquet body is provided with a slot 9. The buckle 8 can be inserted into the slot 9 to achieve quick wearing and removal.
[0039] The tourniquet body has an adjustable band 10 at one end for connecting the buckle 8. The adjustable band 10 has a Velcro fastener. One end of the adjustable band 10 is fixed to the tourniquet body. The adjustable band 10 can pass through the connecting ring on the buckle 8 and make the Velcro fastener parallel to the body. By adjusting the adjustable band 10, the length of the Velcro fastener can be adjusted, thereby adjusting the coverage area of the tourniquet body to suit patients of different body types.
[0040] This embodiment also includes two leg connecting straps 11, which are symmetrically arranged and used to fix the patient's two thighs respectively. The upper ends of the two leg connecting straps 11 are connected to the lower side of the tourniquet body. The width of the leg connecting straps 11 gradually increases from the direction closer to the tourniquet body to improve wearing comfort. The lower ends of the leg connecting straps 11 are fixed with elastic bands 12. The elastic bands 12 can drive the leg connecting straps 11 to form a ring and wrap around the patient's thigh. The two ends of the elastic bands 12 are fixed by semi-circular leg Velcro 13, so as to achieve a tight fit between the leg connecting straps 11 and the human body, prevent loosening caused by the patient's movement, and enhance stability in conjunction with the tourniquet body.
[0041] The usage method of this embodiment is as follows:
[0042] Place the tourniquet body in the groin area and the leg connecting strap 11 in the thigh area. Then connect the buckle 8 and the slot 9. Align the inflatable compression bladder 1 with the femoral artery above the groin. Then tighten the tension adjustment strap 10 to make the tourniquet body in close contact with the pelvis. After achieving effective compression hemostasis, use a syringe to directly inject water into the foam material pack 3. The foam material pack 3 will automatically absorb water and expand to conform to the shape of the human pelvis and waist. The foam material pack 3 can be replaced at any time after a single use.
[0043] In practical applications, it is necessary to set the pressure threshold range for the inflation and compression of the airbag 1. After pressing the automatic control button, the automatic mode is activated: the integrated sensor array 2 starts detection. When the pressure is higher than the threshold, the air pump 6 stops working and the vent valve 7 opens until the pressure drops to the threshold range to prevent over-compression. When the pressure is lower than the threshold, the vent valve 7 closes and the air pump 6 starts until the pressure reaches the threshold. After the threshold is reached, the internal timer starts timing and records the effective compression time.
[0044] Simultaneously, arterial position detection is performed. When compression displacement is detected, the central controller of control module 4 drives the buzzer and indicator light to issue an audible and visual alarm. The principle of arterial position detection is described in [link to relevant documentation]. Figure 6 When the automatic control mode is activated, the integrated sensor array 2 detects the pressure value on the surface of the airbag. Pressure sensors 5, located directly above and on either side of the artery, will detect similar... Figure 7 The pulse wave amplitude is transformed by the gradient. The position corresponding to the pressure sensor 5 with the largest amplitude is directly above the artery. The position of the artery is automatically detected by the pressure value detected by the pressure sensor 5. When the integrated sensor array 2 cannot detect the pressure gradient change that rises and then falls, it is determined that the pressure has shifted, and the control module 4 will issue an audible and visual alarm.
[0045] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. An automatic hemostasis device for junctional areas, characterized in that: The tourniquet includes a tourniquet body, an expansion element, a pressure detection element, and a control module. The tourniquet body can be formed into a ring and used to wrap around the patient's groin. The two ends of the tourniquet body can be detachably connected. The tourniquet body has the expansion element and several foam material packs on the side that contacts the patient. The expansion element is used to compress the patient's inguinal artery. The pressure detection element is installed on the side of the expansion element that contacts the patient. The pressure detection element and the control module are electrically connected. The control module can control the expansion element to expand or contract according to the real-time pressure value detected by the pressure detection element.
2. The automatic hemostasis device for the junction area according to claim 1, characterized in that: The expansion element is an inflatable compression airbag, and there are two inflatable compression airbags, each of which is provided with a pressure detection element.
3. The automatic hemostasis device for the junction area according to claim 2, characterized in that: It also includes an air pump, the air outlet of which is connected to the air inlet of the inflatable compression airbag, the air pump is connected to the control module, and the control module can control the opening and closing of the air pump.
4. The automatic hemostasis device for the junction area according to claim 2, characterized in that: It also includes a deflation valve, which is connected to the air outlet of the inflatable compression airbag. The deflation valve is electrically connected to the control module, and the control module can control the opening and closing of the deflation valve.
5. The automatic hemostasis device for the junction area according to claim 1, characterized in that: The pressure detection element is an integrated sensor array.
6. The automatic hemostasis device for the junction area according to claim 1, characterized in that: The control module is equipped with a display screen and an automatic control button. The display screen is used to display the pressure value detected by the pressure detection element in real time, and the automatic control button can control the opening and closing of the pressure detection element and the control module.
7. The automatic hemostasis device for the junction area according to claim 1, characterized in that: The foam material package is multiple, and the multiple foam material packages are arranged sequentially along the length direction of the tourniquet body; the foam material package and the tourniquet body can be detachably connected.
8. The automatic hemostasis device for the junction area according to claim 1, characterized in that: One end of the tourniquet body is provided with a buckle, and the other end of the tourniquet body is provided with a slot, and the buckle can be inserted into the slot.
9. The automatic hemostasis device for the junction area according to claim 8, characterized in that: The tourniquet body has an adjustable band at one end for connecting the buckle, and the adjustable band has a Velcro fastener. One end of the adjustable band is fixed to the tourniquet body, and the adjustable band can pass through the connecting ring on the buckle and allow the Velcro fastener to be attached parallel to the tourniquet body.
10. The automatic hemostasis device for the junction area according to claim 1, characterized in that: It also includes two leg connecting straps, which are symmetrically arranged. The upper ends of the two leg connecting straps are connected to the lower side of the tourniquet body. The width of the leg connecting straps gradually increases from the direction closer to the tourniquet body. The lower end of the leg connecting straps is fixed with an elastic band. The elastic band can move the leg connecting straps to form a ring and wrap around the patient's thigh. The two ends of the elastic band are fixed by leg Velcro.