Slow-release pressurized tourniquet

Abstract

The invention relates to the field of medical auxiliary instruments, in particular to a slow-release pressurization type tourniquet which comprises a liquid storage soft frame, a cover plate is mounted at the top of the liquid storage soft frame, a liquid storage frame is mounted on the upper side of the left portion of the cover plate, a plurality of grooves are formed in the upper side of the liquid storage frame, and an infusion tube is mounted on the front side of the left portion of the liquid storage frame and connected with the cover plate in a penetrating mode. The liquid outlet is located in the liquid storage soft frame, a piston piece is slidably connected into the liquid storage frame, the right portion of the piston piece is provided with an arc face boosting structure and connected with a clamping belt, and a bandage is slidably connected into the liquid storage soft frame and penetrates through the whole liquid storage soft frame. Controllable pressurization is achieved by pushing the piston part to accurately inject liquid, the pressure is uniform and stable, the tissue damage risk is greatly reduced, meanwhile, the firmness and functionality in the complex environment are further ensured through the multi-stage clamping design and introduction of the cloth applying accessory, and the application effect is good. The comprehensive hemostasis advantages of safety, high efficiency and integration of pressurization, constant pressure, thermal therapy and auxiliary medicine application are realized.

Description

Technical Field

[0001] This invention relates to the field of medical assistive devices, and more particularly to a sustained-release pressure tourniquet. Background Technology

[0002] Traditional tourniquets, often made of cloth strips, rubber tubing, or inflatable designs, have significant limitations in actual emergency care. Cloth and rubber tubing tourniquets typically rely on manual knotting to apply pressure, which is difficult to quantify and maintain consistently. Insufficient pressure can lead to hemostasis failure, while excessive pressure can cause secondary injuries such as nerve damage and tissue ischemia and necrosis. Furthermore, they cannot provide continuous and stable pressure and are prone to loosening and failure during patient transport. While inflatable tourniquets offer measurable pressure, their operation usually requires specialized training, they are relatively bulky, and there is a risk of accidental air leakage leading to a sudden drop in pressure. Current technologies generally cannot be used in conjunction with heat therapy to promote blood circulation or to assist in drug application during hemostasis. Overall, their safety, reliability, and versatility need improvement.

[0003] Therefore, a slow-release pressure tourniquet is being developed to address the above problems. Summary of the Invention

[0004] In order to overcome the shortcomings of existing technologies, which generally cannot be combined with heat therapy to promote blood circulation or assist in drug application during hemostasis, and whose overall safety, reliability and multifunctionality need to be improved, this invention provides a sustained-release pressure tourniquet.

[0005] The technical solution of the present invention is: a sustained-release pressure tourniquet, comprising a fluid reservoir frame, a cover plate installed on the top of the fluid reservoir frame, a fluid reservoir frame installed on the upper left side of the cover plate, multiple grooves on the upper side of the fluid reservoir frame, an infusion tube installed on the front left side of the fluid reservoir frame, the infusion tube being connected through the cover plate, the outlet being located inside the fluid reservoir frame, a piston component slidably connected inside the fluid reservoir frame, the piston component having an arc-shaped thrust structure on its right side, a retaining strap connected to the right side of the piston component, and a binding strap slidably connected inside the fluid reservoir frame, the binding strap passing through the entire fluid reservoir frame.

[0006] Furthermore, it is particularly preferred that the device also includes a control component, which is mounted on the upper right side of the cover plate. A heating element is mounted on the control component, with the lower end of the heating element located inside the liquid storage frame. The control component is electrically connected to the heating element, and a temperature sensor is mounted on the control component for monitoring the liquid temperature.

[0007] Furthermore, it is particularly preferred that the liquid storage frame also includes a first locking component, which is rotatably connected to both the left and right sides of the liquid storage frame. Each first locking component has an arc-shaped groove, and both the front and rear sides of the left and right sides of the liquid storage frame are provided with protrusions, which can engage with the arc-shaped grooves on the adjacent first locking components.

[0008] Furthermore, it is particularly preferred that the strap also includes a sliding member, with the sliding member slidably disposed on both the left and right sides of the strap. A second locking member is rotatably connected to each sliding member. The strap passes through the sliding member and presents an inverted V structure in the passing path. The second locking member is flipped over to further secure the strap.

[0009] Furthermore, it is particularly preferred that the device also includes a frame, on which the liquid storage frame is snapped, and a dressing is adhered to the bottom of the frame for absorbing blood and stopping bleeding.

[0010] Furthermore, it is particularly preferred that the lower part of the liquid storage frame has an elastic layer.

[0011] Furthermore, it is particularly preferred that the left end of the cartridge has an L-shaped structure, which can engage with the groove to fix the piston and prevent the piston from rebounding due to hydraulic pressure.

[0012] Furthermore, it is particularly preferred that the right end of the strap has a Velcro strap.

[0013] Furthermore, it is particularly preferred that the first card has a fixing pin.

[0014] Furthermore, it is particularly preferred that the sleeve frame and the liquid storage soft frame have a detachable connection structure.

[0015] By adopting the above technical solution, the advantages of the present invention compared with the prior art are as follows:

[0016] This invention achieves controllable pressurization by precisely injecting liquid through a piston, resulting in uniform and stable pressure that greatly reduces the risk of tissue damage. The mechanical locking structure reliably maintains the preset pressure, avoiding the drawbacks of pressure decay or the need for continuous manual intervention in traditional methods. At the same time, the multi-level locking design and the introduction of dressing accessories further ensure the robustness and functionality in complex environments, achieving comprehensive hemostasis advantages that are safe, efficient, and integrate pressurization, constant pressure, thermotherapy, and auxiliary medication. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0020] Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0021] Figure 5 This is a schematic diagram of a second partial cross-sectional three-dimensional structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the third partial cross-sectional three-dimensional structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the fourth partial cross-sectional three-dimensional structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0025] In the diagram: 1. Liquid storage frame, 2. Cover plate, 3. Liquid storage frame, 4. Infusion tube, 5. Piston, 6. Clamping strap, 7. Strap, 8. Control component, 9. Heating element, 10. First clamping element, 11. Protrusion, 12. Sliding element, 13. Second clamping element, 14. Sleeve frame, 15. Clothing dressing. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] A type of sustained-release pressure tourniquet, such as Figures 1-8As shown, the device includes a liquid storage frame 1 with an elastic layer at the bottom. A cover plate 2 is installed on the top of the liquid storage frame 1. A liquid storage frame 3 is installed on the upper left side of the cover plate 2. Multiple grooves are opened on the upper side of the liquid storage frame 3. An infusion tube 4 is installed on the front left side of the liquid storage frame 3, and the infusion tube 4 is connected to the cover plate 2 through it. The outlet is located inside the liquid storage frame 1. A piston 5 is slidably connected inside the liquid storage frame 3. The piston 5 has an arc-shaped push structure on its right side. A retaining strap 6 is connected to the right side of the piston 5. The left end of the retaining strap 6 has an L-shaped structure, which can engage with the grooves to fix the piston 5 and prevent the piston 5 from rebounding due to hydraulic pressure. A strap 7 is slidably connected inside the liquid storage frame 1, passing through the entire liquid storage frame 1. The right end of the strap 7 has a Velcro fastener. A control component 8 is installed on the upper right side of the cover plate 2. A heating element 9 is installed on the control component 8, and the lower end of the heating element 9 is located inside the liquid storage frame 1. The control component 8 is electrically connected to the heating element 9. A temperature sensor is installed on the control component 8 to monitor the liquid temperature. The left and right sides of the liquid storage soft frame 1 are rotatably connected to the first clip 10. The first clip 10 has a fixing pin and an arc-shaped groove. The front and rear sides of the left and right sides of the liquid storage soft frame 1 are provided with protrusions 11. The protrusions 11 can engage with the arc-shaped grooves on the adjacent first clip 10. The left and right sides of the strap 7 are slidably provided with sliding parts 12. The sliding parts 12 are rotatably connected to the second clip 13. The strap 7 passes through the sliding parts 12 and presents an inverted V structure in the passing path. The second clip 13 is flipped to further fix the strap 7. The liquid storage soft frame 1 is attached to the sleeve frame 1. The sleeve frame 14 and the liquid storage soft frame 1 are detachably connected. The bottom of the sleeve frame 14 is glued with a dressing 15, which is used to absorb blood for hemostasis.

[0028] It should be noted that, when using this product, the bandage 7 is first wrapped around the injured limb and initially secured using the Velcro on its right side. At this point, the elastic layer at the bottom of the reservoir frame 1 adheres to the skin surface. The crucial pressurization process begins with the operator manually pushing the piston 5 to the right. The piston 5 slides within the reservoir frame 3, and its right-side arc-shaped pusher structure optimizes the force distribution, making the pushing process more effortless and stable. The movement of the piston 5 forces the pre-filled liquid in the reservoir frame 3 out through the infusion tube 4 on its left front side. The infusion tube 4 passes through the cover plate 2, and its outlet is located inside the reservoir frame 1. Therefore, the liquid is directly injected into the sealed cavity of the reservoir frame 1. As the liquid... When the hydraulic pressure inside the reservoir frame 1 increases, the elastic portion at its lower part expands outward, applying a uniform, stable, and continuously increasing vertical pressure to the wound on the limb below. This simulates and maintains the effect of manual finger pressure hemostasis. When the applied pressure reaches the expected value, the operator stops pushing the piston 5. At this point, mechanical locking is achieved by engaging the L-shaped structure at the left end of the clamping strap 6 connected to the right side of the piston 5 into the corresponding groove on the upper side of the reservoir frame 3. This design cleverly utilizes the clamping structure to resist the reaction pressure of the liquid, effectively preventing the piston 5 from rebounding. This permanently locks the internal system pressure and the pressure applied to the wound at the required values, achieving... For the purpose of sustained-release pressurization and permanent fixation in a single operation, if auxiliary treatment is required, the control component 8 can be activated. The lower end of the heating element 9 on it extends into the liquid in the reservoir soft frame 1. Under the command of the control component 8, the liquid is heated. An integrated temperature sensor monitors and feeds back data in real time to ensure that the temperature is kept constant within a safe and effective range (37-40℃). The warm liquid applies heat to the wound through the expanded elastic layer, promoting local blood circulation, thereby enhancing the hemostatic effect and providing comfort. To further enhance the fixation of the bandage 7, the second clip 13, which is attached to the two sliding parts 12 on the left and right sides of the bandage 7, can be flipped. Since the bandage 7 has an inverted V-shaped structure when passing through the sliding parts 12, the flipping... The second locking piece 13 can further tighten the bandage 7 to prevent loosening. Furthermore, the first locking piece 10, which is rotatably connected to the left and right sides of the fluid-retaining soft frame 1, can be flipped outwards, allowing its arc-shaped groove to engage with the protrusion 11 on the fluid-retaining soft frame 1. Then, the first locking piece 10 is rotated so that its fixing pins are vertically downwards, and pressing down forcefully will insert the pins into the bandage 7, achieving multi-point rigid fixation and greatly enhancing overall stability to adapt to dynamic environments. If the wound continues to bleed, a detachable sleeve frame 14 can be attached to the bottom of the fluid-retaining soft frame 1. The dressing 15 (containing hemostatic or disinfectant components) adhered to its bottom will directly contact the wound surface. Under the combined action of continuous pressure and heat, it efficiently absorbs blood and promotes coagulation. The entire device achieves precise pressure through active liquid injection, maintains stable pressure through mechanical locking, and provides auxiliary treatment through heat therapy and the dressing 15, achieving a safe, continuous, and controllable multi-functional hemostasis.

[0029] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A sustained-release pressure tourniquet, characterized in that it includes: A liquid storage frame (1) is provided, and a cover plate (2) is installed on the top of the liquid storage frame (1). A liquid storage frame (3) is installed on the upper left side of the cover plate (2). Multiple grooves are opened on the upper side of the liquid storage frame (3). An infusion tube (4) is installed on the front left side of the liquid storage frame (3). The infusion tube (4) is connected to the cover plate (2) in a through manner. The outlet is located inside the liquid storage frame (1). A piston component (5) is slidably connected inside the liquid storage frame (3). The piston component (5) has an arc-shaped push structure on the right side. A clamp (6) is connected to the right side of the piston component (5). A strap (7) is slidably connected inside the liquid storage frame (1). The strap (7) passes through the entire liquid storage frame (1).

2. The sustained-release pressure tourniquet as described in claim 1, characterized in that, It also includes a control component (8), which is installed on the upper right side of the cover plate (2). A heating element (9) is installed on the control component (8), and the lower end of the heating element (9) is located inside the liquid storage soft frame (1). The control component (8) is electrically connected to the heating element (9). A temperature sensor is installed on the control component (8) for monitoring the liquid temperature.

3. The sustained-release pressure tourniquet as described in claim 2, characterized in that, It also includes a first card (10), and the liquid storage soft frame (1) is rotatably connected to the first card (10) on both the left and right sides. The first card (10) has an arc-shaped groove. The front and rear sides of the left and right sides of the liquid storage soft frame (1) are provided with protrusions (11), and the protrusions (11) can engage with the arc-shaped grooves on the adjacent first card (10).

4. A sustained-release pressure tourniquet as described in claim 3, characterized in that, It also includes a sliding member (12), and the left and right sides of the strap (7) are slidably provided with the sliding member (12). The sliding member (12) is rotatably connected with a second clip (13). The strap (7) passes through the sliding member (12) and presents an inverted V structure in the passing path. The second clip (13) is flipped to further fix the strap (7).

5. A sustained-release pressure tourniquet as described in claim 4, characterized in that, It also includes a frame (14), which is snapped onto the liquid storage soft frame (1). A dressing (15) is glued to the bottom of the frame (14) and is used to absorb blood for hemostasis.

6. A sustained-release pressure tourniquet as described in claim 1, characterized in that, The liquid storage soft frame (1) has an elastic layer at the bottom.

7. A sustained-release pressure tourniquet as described in claim 1, characterized in that, The left end of the cassette (6) has an L-shaped structure, which can engage with the groove to fix the piston (5) and prevent the piston (5) from rebounding due to hydraulic pressure.

8. A sustained-release pressure tourniquet as described in claim 1, characterized in that, The right end of the strap (7) has a Velcro strap.

9. A sustained-release pressure tourniquet as described in claim 3, characterized in that, Each of the first card pieces (10) has a fixing pin.

10. A sustained-release pressure tourniquet as described in claim 5, characterized in that, The sleeve frame (14) and the liquid storage soft frame (1) are detachable connection structures.

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