Tourniquet trousers

Abstract

This application relates to the field of medical device technology and discloses a hemostatic trousers, including a trouser body, a balloon, and a control component. The balloon is disposed on the inner side of the trouser body and includes a first balloon and a second balloon connected to each other. The first balloon has a first cavity and is expandable to increase the volume of the first cavity. The second balloon has a second cavity and is expandable to increase the volume of the second cavity. The control component is disposed between the first and second cavities and is used to control the connection or disconnection between the first and second cavities. The overall volume of the balloon in this hemostatic trousers is adjustable, allowing operators to rationally select the inflatable balloon according to different patients, thus improving the applicability of the hemostatic trousers to different patients.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a hemostatic trousers. Background Technology

[0002] This section provides only background information related to the present invention and is not necessarily prior art.

[0003] In some animal clinical trials, it is necessary to puncture the femoral vein to create a puncture site. The delivery device is then inserted into the blood vessel through the puncture site to deliver the interventional medical device within the blood vessel. Typically, the puncture site on the femoral vein is relatively large, and after delivery, the operator needs to apply pressure to the wound for an extended period to achieve hemostasis, making the procedure quite laborious. Summary of the Invention

[0004] The purpose of this invention is to at least alleviate the problem of laborious hemostasis procedures at puncture sites. This purpose is achieved through the following technical solution:

[0005] A first aspect of the present invention provides a hemostatic trouser, comprising:

[0006] Pants body;

[0007] A balloon is disposed on the inside of the pants. The balloon includes a first balloon body and a second balloon body connected to each other. The first balloon body has a first cavity and can be inflated to increase the volume of the first cavity body. The second balloon body has a second cavity and can be inflated to increase the volume of the second cavity body.

[0008] A control component is disposed between the first cavity and the second cavity, and is used to control the connection or separation between the first cavity and the second cavity.

[0009] According to the hemostatic pants of the present invention, the volume of the balloon can be increased by filling the first and / or second balloons with gas, so that when the hemostatic pants are worn on an animal, the balloon can fit against the patient's puncture site, achieving pressure hemostasis, reducing the need for manual pressure hemostasis and alleviating the operator's workload. Simultaneously, the first cavity of the first balloon and the second cavity of the second balloon can be controlled by a control component, allowing the first or second balloon to expand independently or simultaneously. For example, when the patient wears the hemostatic pants, the first and second cavities of the balloon can be disconnected initially, with the first balloon filled with gas. If the balloon cannot meet the need for pressure hemostasis in this state, the control component can be used to connect the first and second cavities, allowing gas to enter the second cavity and inflate the second balloon. Thus, the overall volume of the balloon is adjustable, allowing the operator to rationally select the inflatable balloon for different patients, improving the applicability of the hemostatic pants to various patients.

[0010] In addition, the hemostatic pants according to the present invention may also have the following additional technical features:

[0011] In some embodiments of the present invention, the first bladder contains gas, which makes the pressure inside the first cavity greater than the external pressure. In the state where the first cavity and the second cavity are not connected, the pressure inside the first cavity is greater than the pressure inside the second cavity. The second bladder is further away from the pants than the first bladder.

[0012] In some embodiments of the present invention, the elastic modulus of the outer wall of the second capsule is less than that of the outer wall of the first capsule.

[0013] In some embodiments of the present invention, a connecting hole is provided between the first cavity and the second cavity of the balloon, and a control component is provided corresponding to the connecting hole and used to control the opening or closing of the connecting hole.

[0014] In some embodiments of the present invention, the control component includes a drive member and a control member. The control member is disposed in the communication hole. One end of the drive member is connected to the control member, and the other end of the drive member extends out of the trouser body. The drive member is used to drive the control member to connect or disconnect the first cavity and the second cavity.

[0015] In some embodiments of the present invention, the driving component includes a pull rod, and the control component includes an elastic sealing component connected to the pull rod. The elastic sealing component is used to seal the connecting hole.

[0016] In some embodiments of the present invention, an inflation channel is provided inside the driving component, the inflation channel is connected to the first cavity, and a sealing plug is detachably connected to the end of the inflation channel away from the first cavity.

[0017] In some embodiments of the present invention, the hemostatic pants further include a throttling tube, at least a portion of which is disposed within the second cavity. One end of the throttling tube is connected to a connecting hole, and a plurality of air vents are arranged on the tube wall of the throttling tube, which are connected to the second cavity.

[0018] In some embodiments of the present invention, multiple air outlets are arranged at intervals along the axial direction of the throttling tube, a control element is disposed inside the throttling tube, and a driving element is capable of driving the control element to move along the axial direction of the throttling tube. The control element can control the number of air outlets connected to the connecting hole.

[0019] In some embodiments of the present invention, a first bladder is connected to the trouser body, and a second bladder is disposed on the side of the first bladder away from the trouser body. The second bladder has a first side for contact with a wound, and the first side is provided with a coagulation material or a fluid guiding structure.

[0020] In some embodiments of the present invention, the trouser body includes a trouser body and an elastic band, the elastic band being connected to the trouser body, and a balloon being disposed on the elastic band and located on the side of the elastic band facing inward toward the trouser body. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 A schematic diagram of a hemostatic trousers according to some embodiments of this application is shown;

[0023] Figure 2 This schematically illustrates a balloon in some embodiments of the present application where the first cavity and the second cavity are disconnected from each other;

[0024] Figure 3 schematically shown Figure 2 A magnified view of a portion of the image;

[0025] Figure 4 A schematic diagram illustrating the communication between the first cavity and the second cavity of a balloon in some embodiments of this application is shown.

[0026] Figure 5 schematically shown Figure 4 A magnified view of a portion of the image;

[0027] Figure 6 A schematic diagram illustrating a liquid-guiding structure provided on the first surface of a second capsule according to some embodiments of this application is shown.

[0028] Figure 7 A schematic diagram illustrating a liquid-guiding structure provided on the first surface of a second capsule according to other embodiments of this application is shown.

[0029] Figure 8 A schematic diagram of a balloon according to some embodiments of this application is shown;

[0030] Figure 9 The diagram illustrates the assembly of the control components and the throttle tube according to some embodiments of this application.

[0031] The attached figures are labeled as follows:

[0032] 100. Pant body; 110. Pant frame; 120. Elastic band; 130. Velcro;

[0033] 200. Balloon; 210. First balloon body; 211. First cavity; 220. Second balloon body; 221. Second cavity; 222. First surface; 223. Fluid guiding structure; 224. Protrusion; 230. Partition; 240. Connecting hole;

[0034] 300. Control component; 310. Drive component; 312. Inflation channel; 313. Sealing and plugging component; 320. Control component; 321. Elastic ring structure; 322. Elastic plugging part; 323. Vent hole; 324. Outlet;

[0035] 400, throttling tube; 410, vent. Detailed Implementation

[0036] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0037] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0038] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0039] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0040] Example 1

[0041] like Figures 1 to 7 As shown, according to an embodiment of the present invention, a hemostatic trouser is provided, including a trouser body 100, a balloon 200, and a control assembly 300. The balloon 200 is disposed inside the trouser body 100 and includes a first balloon 210 and a second balloon 220 connected to each other. The first balloon 210 has a first cavity 211 and is inflatable to increase the volume of the first cavity 211. The second balloon 220 has a second cavity 221 and is inflatable to increase the volume of the second cavity 221. The control assembly 300 is disposed between the first cavity 211 and the second cavity 221 for connecting or disconnecting the first cavity 211 and the second cavity 221.

[0042] The trousers 100 are worn on the patient's body. Figure 1 The schematic diagram illustrates a hemostatic trousers according to some embodiments of this application. The trouser body 100 may include a trouser body 110 and a restraint that secures the trouser body 110 to the patient's body. The restraint is typically positioned around the patient's waist. Specific restraints may be elastic elements such as rubber bands, or inelastic connecting ropes, etc. In one specific embodiment, reference continues... Figure 1 As shown, the restraint includes Velcro 130. The female and male parts of Velcro 130 are respectively connected to the pant body 100 at the position corresponding to the patient's waist. After the pant body 100 is put on the patient's body, the female and male parts are connected to restrain the pant body 100 at the patient's waist.

[0043] The balloon 200 can inflate after the hemostatic pants are put on to compress the wound (e.g., puncture site). Specifically, the balloon 200 is positioned inside the pants 100, so that when the pants 100 are worn on the patient's body, the pants 100 can restrict the balloon 200. When the patient's puncture site or other wound comes into contact with the balloon 200, due to the restriction effect of the pants 100, the balloon 200 can apply pressure to the wound when its volume is appropriately inflated.

[0044] Please refer to Figure 2 , Figure 2 The diagram schematically illustrates a balloon 200 of some embodiments of this application with its first cavity 211 and second cavity 221 disconnected from each other. The first cavity 211 is a sealed cavity formed by the first balloon body 210. The expansion process of the first balloon body 210 can involve filling the first cavity 211 with gas or liquid, causing the first balloon body 210 to expand outward under the pressure difference between the first cavity 211 and the outside. To enable the first balloon body 210 to expand, it can be made of a polymer material, specifically elastic materials such as rubber, plastic, silicone, or latex. The first balloon body 210 can be a compliant balloon or a non-compliant balloon.

[0045] The second cavity 221 is a sealed cavity formed by the second capsule 220. The expansion process of the second capsule 220 can involve filling the second cavity 221 with gas or liquid, causing the second capsule 220 to expand outward under the pressure difference between the first cavity 211 and the outside. To enable the second capsule 220 to expand, it can be made of a polymer material, specifically elastic materials such as rubber, plastic, silicone, or latex. The second capsule 220 can be a compliant or non-compliant balloon.

[0046] The first capsule 210 and the second capsule 220 can be independent capsule structures that are interconnected. Alternatively, the first capsule 210 and the second capsule 220 can be integrally formed capsule structures, for example, by blow molding or dip coating. In some embodiments, such as... Figure 2 As shown, the first sac 210 and the second sac 220 are integrally formed. The sac 200 is provided with a partition 230, and the two sides of the partition 230 are the first cavity 211 and the second cavity 221, respectively.

[0047] The control component 300 is used to control the connection and disconnection between the first cavity 211 and the second cavity 221. The control component 300 can be configured in various ways, as long as it enables switching between connection and disconnection between the first cavity 211 and the second cavity 221. For example, a connecting pipe can be provided between the first cavity 211 and the second cavity 221, and the control component 300 can be a control valve located on the connecting pipe to control its connection and disconnection, thus controlling the connection or disconnection of the first cavity 211 and the second cavity 221. Alternatively, a connecting hole 240 can be provided between the first cavity 211 and the second cavity 221, and the control component 300 can block or avoid the connecting hole 240 to achieve connection or disconnection between the first cavity 211 and the second cavity 221. When the first cavity 211 is connected to the second cavity 221, the gas in the first cavity 211 enters the second cavity 221, and the pressure between the first cavity 211 and the second cavity 221 eventually tends to be the same. When the first cavity 211 and the second cavity 221 are disconnected, the first capsule 210 can expand independently.

[0048] In this embodiment, when the hemostatic pants are in use, the first sac 210 can be filled with gas or liquid to inflate the balloon 200. Specifically, when the hemostatic pants are not in use, the balloon 200 may not be filled with liquid or gas, i.e., the balloon 200 is deflated. When the hemostatic pants are needed, the first sac 210 of the balloon 200 is then filled with liquid or gas to inflate the balloon 200. Alternatively, the hemostatic pants may already have the first sac 210 filled with gas or liquid when not in use, i.e., the balloon 200 has already been partially or completely inflated when not in use.

[0049] According to this embodiment of the hemostatic pants, gas can be first inflated into the first bladder 210 to increase the volume of the balloon 200. When the hemostatic pants are worn on an animal, the balloon 200 can conform to the patient's puncture site, achieving pressure-based hemostasis. This reduces the need for manual pressure application and alleviates the operator's workload. When the first bladder 210 cannot provide sufficient pressure, the first cavity 211 of the first bladder 210 can be connected to the second cavity 221 of the second bladder 220, causing the second bladder 220 to expand and provide stronger pressure. This makes the overall volume of the balloon 200 adjustable, improving the applicability of the hemostatic pants to different patients.

[0050] For example, when the patient is wearing hemostatic pants, the first cavity 211 and the second cavity 221 of the balloon 200 can be disconnected first, and the first bladder 210 is filled with gas. If the balloon 200 cannot meet the needs of applying pressure to stop bleeding in the patient's wound under this state, the control component 300 can be used to connect the first cavity 211 and the second cavity 221. Gas enters the second cavity 221 from the first cavity 211, causing the second bladder 220 to expand, so that the overall volume of the balloon 200 is adjustable. When the first cavity 211 and the second cavity 221 are connected, the amount of air can be increased into the first cavity 211, causing the second bladder 220 to expand, thereby increasing the overall volume of the balloon 200. Alternatively, the difference in elastic modulus between the first bladder 210 and the second bladder 220 can be used to make the volume change of the second bladder 220 (which is also the volume change of the second cavity 221) greater than the volume change of the first bladder 210 (which is also the volume change of the first cavity 211) when the same amount of gas is used.

[0051] The first bladder 210 may be provided with a one-way inflation port, through which air can be pumped into the first bladder 210. The gas injected into the first cavity 211 of the first bladder 210 is compressed due to the restriction effect of the first bladder 210, making the air pressure inside the first bladder 210 greater than the external air pressure, thereby causing the first bladder 210 to expand.

[0052] According to some embodiments of this application, optionally, the first bladder 210 is pre-stored with gas, the gas makes the pressure inside the first cavity 211 greater than the external pressure, and when the first cavity 211 and the second cavity 221 are disconnected, the pressure inside the first cavity 211 is greater than the pressure inside the second cavity 221.

[0053] The gas pre-stored in the first capsule 210 can be air. When gas is pre-stored in the first capsule 210, the gas should be a high-pressure gas with a relatively high pressure. The gas fills the first cavity 211, causing the first capsule 210 to be in an expanded state under the action of the filled gas. The control component 300 disconnects the first cavity 211 from the second cavity 221. At this time, the second cavity 221 of the second capsule 220 may contain a small amount of gas or no gas, that is, the pressure inside the second capsule 220 can be basically the same as the outside pressure.

[0054] By pre-filling the first capsule 210 with gas, the hemostatic pants can be used directly and are easy to operate. When using the hemostatic pants, the balloon 200 is first put on the patient's body with the first capsule 210 inflated. Then, observe whether the balloon 200 can effectively stop the bleeding of the patient's wound. If it cannot effectively stop the bleeding of the patient's wound, the control component 300 can connect the first cavity 211 and the second cavity 221, so that the gas in the first cavity 211 can enter the second cavity 221, causing the second capsule 220 to expand. At this time, both the first capsule 210 and the second capsule 220 have a certain amount of expansion. Compared with the first capsule 210 expanding alone, the shape of the balloon 200 will change when the first capsule 210 and the second capsule 220 expand simultaneously, which makes it easier to adjust the balloon 200 so that it can better stop the bleeding of the patient's wound.

[0055] Optionally, in some embodiments, the elastic modulus of the second capsule 220 may be less than that of the first capsule 210.

[0056] During the elastic deformation stage, the stress and strain of a material are directly proportional (i.e., they conform to Hooke's Law). The proportionality coefficient can be called the elastic modulus. The larger the elastic modulus, the smaller the deformation of the material under the same stress. The smaller the elastic modulus, the larger the deformation of the material under the same stress.

[0057] Specifically, the first capsule 210 and the second capsule 220 can be made of different materials, such that the elastic modulus of the first capsule 210 is greater than that of the second capsule 220. Alternatively, the first capsule 210 and the second capsule 220 can be made of the same material, but the thickness of the first capsule 210 is designed to be greater than that of the second capsule 220, thereby making the elastic modulus of the first capsule 210 greater than that of the second capsule 220. When the first capsule 210 and the second capsule 220 have a shared partition 230, the partition 230 can have the same elastic modulus as the first capsule 210, that is, the elastic modulus of the partition 230 is greater than that of the first capsule 210, so that when the second capsule 220 expands, it can mainly expand unidirectionally away from the first capsule 210.

[0058] In this embodiment, by setting the elastic modulus of the second bladder 220 to be less than that of the first bladder 210, the second bladder 220 expands more easily than the first bladder 210. Under the same inflation volume, the deformation of the second bladder 220 is greater than that of the first bladder 210. Thus, when gas can be pre-stored in the first bladder 210 and the expansion volume of the first bladder 210 is insufficient for applying pressure to stop bleeding from the wound, the control component 300 connects the first cavity 211 and the second cavity 221. Gas enters the second cavity 221 from the first cavity 211, causing the second bladder 220 to expand. The total expansion volume of the first bladder 210 and the second bladder 220 is greater than the expansion volume of the first bladder 210 when the connection between the first cavity 211 and the second cavity 221 is broken. That is, the high-pressure airflow entering the second bladder 220 increases the overall volume of the balloon 200. In other words, after the first balloon 210 and the second balloon 220 are connected, the second balloon 220 can expand rapidly under the pressure of the airflow (the airflow formed by the gas in the first cavity 211) to compress the wound and achieve the effect of hemostasis. The overall volume of the balloon 200 when the first cavity 211 and the second cavity 221 are connected is greater than the overall volume of the balloon 200 when the first cavity 211 and the second cavity 221 are disconnected, so that the balloon 200 can fit better to the patient's puncture site and other wounds.

[0059] In this embodiment, by setting the elastic modulus of the second bladder 220 to be less than that of the first bladder 210, the balloon 200 can be used without an external inflation device. The size of the balloon 200 can be adjusted by controlling the control component 300 without additional inflation, making the hemostatic pants more convenient and adaptable to use.

[0060] Optional, refer to Figure 2 and Figure 3 and combined Figure 4 and Figure 5 , Figure 3 schematically shown Figure 2 A magnified view of a portion of the image. Figure 4 The diagram schematically illustrates the communication between the first cavity 211 and the second cavity 221 of the balloon 200 according to some embodiments of this application. Figure 5 schematically shown Figure 4 The enlarged view shows that in some embodiments, the balloon 200 is provided with a communication hole 240 between the first cavity 211 and the second cavity 221, and the control component 300 is provided with the communication hole 240 and is used to control the opening or closing of the communication hole 240.

[0061] In this embodiment, the balloon 200 can be an integral structure. The first balloon body 210 and the second balloon body 220 share a common partition 230. A connecting hole 240 can be disposed on the partition 230. One end of the connecting hole 240 communicates with the first cavity 211, and the other end of the connecting hole 240 communicates with the second cavity 221. A control component 300 can be disposed within the connecting hole 240 to control the opening or closing of the connecting hole 240. Alternatively, the control component 300 can be disposed at the end of the connecting hole 240 to open or close the connecting hole 240 by blocking or avoiding the end of the connecting hole 240. When the control component 300 opens the connecting hole 240, the first cavity 211 and the second cavity 221 are connected; when the control component 300 closes the connecting hole 240, the first cavity 211 and the second cavity 221 are disconnected.

[0062] In this embodiment, the first cavity 211 and the second cavity 221 are connected or disconnected by setting a connecting hole 240 in cooperation with the control component 300, which is simple in structure.

[0063] Additionally, it should be noted that in this embodiment, the second capsule 220 can be used as the part that contacts the wound. When the connecting hole 240 is provided, its diameter is typically small. Airflow (the airflow formed by the gas in the first cavity 211) enters the second capsule 220 after passing through the connecting hole 240. As the airflow passes through the small-area connecting hole 240, a Joule-Thomson effect (i.e., throttling cooling) can be formed, causing the airflow temperature to drop and creating a cooling sensation on the sidewall of the second capsule 220. This achieves hemostasis through compression while simultaneously reducing pain at the wound. Furthermore, the low temperature promotes blood coagulation and facilitates hemostasis. The flow area of ​​the connecting hole 240 is related to the air pressure within the first cavity 211. The ratio of air pressure to the flow area of ​​the connecting hole 240 can be set as needed to achieve a better Joule-Thomson effect.

[0064] The Joule-Thomson effect is a phenomenon in which the temperature of a gas changes with pressure during throttling. The process of gas expanding through a porous plug or throttling valve is called adiabatic throttling expansion. In this embodiment, the connecting hole 240 is equivalent to forming a throttling valve.

[0065] In one specific embodiment, continue referring to 2 to Figure 5 As shown, the control component 300 includes a drive member 310 and a control member 320. The control member 320 is disposed in the communication hole 240. One end of the drive member 310 is connected to the control member 320, and the other end of the drive member 310 extends out of the outside of the trouser body 100. The drive member 310 is used to drive the control member 320 to connect or disconnect the communication between the first cavity 211 and the second cavity 221.

[0066] The driving component 310 can be a pull rope or a pull rod, etc. In this embodiment, the driving component 310 is described as a pull rod. The control component 320 is a switch mechanism that directly controls the opening or closing of the connecting hole 240.

[0067] In one implementation, the control element 320 can be inserted from the first cavity 211 into the communicating hole 240 to close the communicating hole 240. At this time, one end of the drive element 310 extends into the first bladder 210 and is located within the first cavity 211 to connect with the control element 320, while the other end of the drive element 310 extends out of the first bladder 210 and is located outside the balloon 200. Figure 2 and Figure 3 As shown, the control component 320 can block the connecting hole 240, disconnecting the first cavity 211 from the second cavity 221; the operator can move the drive component 310 in the direction of arrow A (to the left) by pulling the drive component 310, positioning the control component 320 on the side where the connecting hole 240 connects to the first cavity 211, as shown. Figure 4 and Figure 5 As shown, at this time, the connecting hole 240 is connected to the first cavity 211, and the first cavity 211 is connected to the second cavity 221 through the connecting hole 240. The gas in the first cavity 211 can flow to the second cavity 221 along arrow C.

[0068] It should be noted that the control element 320 can also be inserted into the communicating hole 240 from the second cavity 221 to close the communicating hole 240. In this case, one end of the drive element 310 can extend into the second pouch 220 and connect with the drive element 310. Typically, one of the first pouch 210 and the second pouch 220 is positioned close to the wound, and the other is positioned away from the wound. The control element 320 can be placed in the pouch away from the wound to facilitate the operator's operation. This embodiment mainly uses the example of the first pouch 210 being connected to the trouser body 100 and the second pouch 220 being fitted to the wound for explanation.

[0069] In this embodiment, the connection or disconnection of the first cavity 211 and the second cavity 221 is controlled by the driving component 310 acting on the control component 320. One end of the driving component 310 is located on the outside of the trouser body 100, which facilitates the operator's control operation of the control component 300.

[0070] In one embodiment, the drive member 310 includes a pull rod, and the control member 320 includes an elastic plug connected to the pull rod. The elastic plug is used to block the connecting hole 240.

[0071] Specifically, one end of the elastic sealing member can extend into the connecting hole 240 to block the connecting hole 240, and the other end of the elastic sealing member is connected to the driving member 310 (i.e., the pull rod). The driving member 310 can pull the elastic sealing member out of the connecting hole 240, so that the first bladder 210 and the second bladder 220 are connected, and the high-pressure airflow in the first bladder 210 enters the second bladder 220.

[0072] The flexible sealing component can be made of materials such as rubber, silicone, latex, or soft plastic.

[0073] In this embodiment, the connecting hole 240 is sealed by an elastic sealing element, which can achieve a good sealing effect.

[0074] In a specific implementation, such as Figure 3 and Figure 5 As shown, the elastic plugging component includes an elastic annular structure 321 and an elastic sealing portion 322. The elastic annular structure 321 surrounds the circumferential sidewall of the pull rod, achieving a fixed connection between the elastic plugging component and the pull rod. The elastic sealing portion 322 is an integral structure with the elastic annular structure 321, and is connected to the end of the elastic annular structure 321 away from the pull rod, and is used to insert into the connecting hole 240. The radial dimension of the elastic annular structure 321 along the connecting hole 240 is larger than the diameter of the connecting hole 240, and also larger than the radial dimension of the elastic sealing portion 322 along the connecting hole 240. Thus, when the elastic plugging component seals the connecting hole 240, the elastic annular structure 321 adheres to the sidewall of the partition portion 230 and covers the connecting hole 240, forming a seal at one end of the connecting hole 240. This improves the sealing performance of the elastic plugging component in the connecting hole 240 and allows for positioning of the elastic plugging component within the connecting hole 240. The radial dimension of the elastic sealing part 322 along the connecting hole 240 can be slightly larger than the diameter of the connecting hole 240, so that the elastic sealing part 322 can be interference-fitted into the connecting hole 240, so that the elastic sealing part has good sealing performance for the connecting hole 240.

[0075] In some embodiments, such as Figures 2 to 4 As shown, the driving component 310 may also be provided with an inflation channel 312, which is connected to the first cavity 211 or the second cavity 221, and the end of the inflation channel 312 away from the first cavity 211 is detachably connected to a sealing plug 313.

[0076] The inflation channel 312 can extend through both ends of the drive member 310, that is, connect the end of the drive member 310 located on the outside of the pant body 100 with the end of the drive member 310 located inside the balloon 200, so that air can be inflated into the balloon 200 through the inflation channel 312. Specifically, the inflation channel 312 can be connected to the first cavity 211, and air can be inflated into the first cavity 211 through the inflation channel 312; or the inflation channel 312 can be connected to the second cavity 221, and air can be inflated into the second cavity 221 through the inflation channel 312.

[0077] Reference Figure 3 and Figure 5 As shown, in this embodiment, the elastic sealing part 322 is provided with a vent 323 communicating with the inflation channel 312, and the elastic sealing part 322 is provided with an outlet 324 communicating with the vent 323. When the elastic sealing member is sealed in the connecting hole, the outlet 324 on the elastic sealing part 322 is located in the second cavity 221. At this time, air can be inflated into the second cavity 221 through the inflation channel 312. When the elastic sealing member is completely located in the first cavity 211, the elastic sealing part 322 can abut against the end of the connecting hole 240 facing the first cavity 211, so that the first cavity 211 and the second cavity 221 are sealed, and air can be vented into the first cavity 211 at this time.

[0078] It should be noted that an outlet 324 communicating with the inflation channel 312 can also be directly provided on the driving component 310. For example, one end of the driving component 310 extends into the first cavity 211, and an outlet 324 is provided on the driving component 310 to inflate the first cavity 211.

[0079] The sealing plug 313 can be located at the end of the inflation channel 312 outside the pant body 100. The sealing plug 313 can be a rubber, silicone, or a check valve. When inflation is not required, the sealing plug 313 seals the inflation channel 312. When the bladder needs to be inflated, the sealing plug 313 can be removed, or a one-way sealing structure can be provided on the sealing plug 313 to inflate the balloon 200. After inflation is complete, the sealing plug 313 blocks the inflation channel 312 to prevent the high-pressure airflow inside the balloon 200 from overflowing.

[0080] According to some embodiments of this application, optionally, the first bladder 210 is connected to the pant body 100, and the second bladder 220 is disposed on the side of the first bladder 210 away from the pant body 100. The second bladder 220 has a first side for contact with the wound, and the first side is provided with a coagulation material or a fluid guiding structure 223.

[0081] Among them, the coagulation material is a material that can promote blood coagulation. The coagulation material can be coated on the first surface 222 to form a coagulation material layer. When the balloon 200 is attached to and pressed against the wound, the coagulation material can come into contact with the wound, promote blood coagulation, and improve the efficiency and effect of hemostasis.

[0082] The fluid-conducting structure 223 is a structure that increases the difficulty of blood flowing out from the first surface 222 of the second capsule 220. The fluid-conducting structure 223 can be a hydrophilic layer formed of a hydrophilic material. Due to the hydrophilic properties of the hydrophilic layer, blood is more likely to remain on the first surface 222 and less likely to flow to the edge of the hydrophilic layer, thus increasing the difficulty of blood sliding off the surface of the second capsule 220.

[0083] The fluid-guiding structure 223 can also be a structure that guides blood from the edge of the first side surface to the center. Specifically, the middle part of the first side surface can be made more hydrophilic, while the edge of the first surface 222 can be made more hydrophobic. Under the effect of the wetting gradient, the fluid-guiding structure 223 can cause more blood to gather towards the center of the wound, reducing the possibility of blood flowing outward and improving hemostasis efficiency and effect. Specifically, the hydrophilicity and hydrophobicity of the fluid-guiding structure 223 can be achieved by using different hydrophilic materials. For example, a more hydrophilic material can be used in the middle part of the first side surface, while a material with lower hydrophilicity can be used at the edge of the first surface 222. The fluid-guiding structure 223 can also achieve different hydrophilicities through micropatterns. Several ways to achieve different hydrophilicities through micropatterns are given below.

[0084] In one way, such as Figure 6 As shown, Figure 6 The schematic diagram shows a first surface 222 of the second capsule 220 of some embodiments of the present application having a liquid guiding structure 223. The liquid guiding structure 223 includes a plurality of protrusions 224, which are spaced apart. The height L of the protrusions 224 at the edge of the first surface 222 is greater than the height of the protrusions 224 on both sides of the middle of the first surface 222.

[0085] In this context, the protrusion 224 refers to a structure that protrudes relative to the first surface 222. The height L of the protrusion 224 refers to the protrusion height of the protrusion 224 relative to the first surface 222 in a direction perpendicular to the first surface 222. The protrusion 224 can be cylindrical, cuboid, triangular prism, or other similar structures. The protrusion 224 can be formed by electrospinning on the first surface 222, or by coating the first surface 222 with a hydrophilic or hydrophobic coating, followed by laser etching or imprinting of the corresponding coating.

[0086] In this embodiment, as Figure 6As shown, multiple protrusions 224 have a columnar structure and are arrayed on the outflow surface. Any two adjacent protrusions 224 are spaced apart, forming a grid-like structure. The spacing between adjacent protrusions 224 is between 20 micrometers and 200 micrometers, specifically 20 micrometers, 40 micrometers, 50 micrometers, 80 micrometers, 90 micrometers, 100 micrometers, 150 micrometers, 180 micrometers, and 200 micrometers. The height L is between 2 micrometers and 30 micrometers, specifically 2 micrometers, 5 micrometers, 10 micrometers, 15 micrometers, 20 micrometers, 25 micrometers, and 30 micrometers. It can be understood that for the micropattern, within a certain height range, the height of the protrusion 224 is directly proportional to the contact angle between the first surface 222 and the fluid. The greater the height of the protrusion 224, the larger the contact angle between the fluid and the first surface 222, thus making the first surface 222 more hydrophobic (i.e., less hydrophilic). The height difference of the protrusions 224 creates a hydrophobic difference on the first surface 222, allowing blood to flow along... Figure 6 Arrow B indicates the direction of the flow.

[0087] In another implementation, such as Figure 7 As shown, Figure 7 A schematic diagram of a second capsule 220 according to other embodiments of this application is shown, showing a liquid-guiding structure 223 provided on the first surface 222. The liquid-guiding structure 223 includes a plurality of protrusions 224, and the spacing H between the protrusions 224 at the edge of the first surface 222 is smaller than the spacing H between the protrusions 224 in the middle of the first surface 222. The spacing between two adjacent protrusions 224 is inversely proportional to the contact angle of the fluid on the first surface 222; the larger the spacing, the smaller the contact angle, thereby making the hydrophilicity of the first surface 222 in the middle greater than that at the edge.

[0088] It should be noted that hydrophobicity and hydrophilicity are relative concepts. The stronger the hydrophobicity, the weaker the hydrophilicity, and vice versa. In this embodiment, the hydrophobicity and hydrophilicity of the middle and edges of the first surface 222 can be tested by methods such as contact angle testing or Zeta potential analysis (Zeta is also known as Zeta potential, which refers to the potential of the shear surface).

[0089] It should also be noted that the liquid-guiding structure 223 in this embodiment is not limited to the structure given above. For example, differences in hydrophilicity can also be achieved through differences in the cross-sectional area of ​​the protrusions 224. In this embodiment, the first surface 222 can also be set as a rough surface, which can be used to increase platelet adhesion to promote coagulation.

[0090] In some embodiments of this application, optionally, the trouser body 100 includes a trouser body 110 and an elastic band 120, the elastic band 120 being connected to the trouser body 110, and the balloon 200 being disposed on the elastic band 120 and located on the side of the elastic band 120 facing the inside of the trouser body 110.

[0091] The elastic band 120 is an elastic band that makes the trousers 100 elastic at that location. The elastic band 120 can be connected to a restraining element on the trousers 100. Specifically, in this embodiment, as... Figure 1 As shown, the elastic band 120 is connected to the Velcro 130 corresponding to the waistband of the trouser body 100. The balloon 200 is mounted on the elastic band 120. When the waistband Velcro 130 is fastened, the elastic band 120 is tightened to make the balloon 200 fit the wound location. At the same time, due to the tension applied to the balloon 200 by the elastic band 120, the balloon 200 is prevented from expanding outwards towards the wound when it inflates, thus allowing the balloon to expand more easily towards the wound. When the first balloon 210 is pre-filled with gas and its expansion is insufficient to meet the wound hemostasis requirements, the elastic band 120's binding effect allows the second balloon 220 to expand better towards the wound. Furthermore, the binding effect of the elastic band 120 allows the overall volume of the balloon 200 to increase, resulting in greater pressure on the wound.

[0092] Example 2

[0093] This embodiment can be further improved based on Embodiment 1.

[0094] Specifically, in this embodiment, to enhance the inflation and cooling effect of the second capsule 220, optional features include: Figure 8 , Figure 8 The schematic diagram illustrates a balloon 200 according to some embodiments of this application. The hemostatic pants also include a throttling tube 400, at least a portion of which is disposed within a second cavity 221. One end of the throttling tube 400 is connected to a connecting hole 240. Multiple air vents 410 are arranged on the wall of the throttling tube 400, and these vents 410 are connected to the second cavity 221. The throttling tube 400 can be a flexible tube.

[0095] One end of the throttling tube 400 can be inserted into the connecting hole 240. The throttling tube 400 has multiple air outlets 410 arranged on the tube wall at least in the second cavity 221. The multiple air outlets 410 can all be configured as through holes with a small area.

[0096] In this embodiment, the throttling tube 400 is inserted into and communicates with the connecting hole 240. After the high-pressure airflow from the first bladder 210 passes through the small air outlet 410 on the throttling tube 400, it can accelerate the inflation and cooling effect on the second bladder 220, making the second bladder 220 more effective at stopping the bleeding of the wound.

[0097] With the throttling tube 400 provided, the control element 320 of the control assembly 300 can be disposed within the throttling tube 400 to control the opening and closing of the connecting hole 240. Refer to 8, and further combine... Figure 9 , Figure 9 The schematic diagram illustrates the assembly of the control component 300 and the throttle tube 400 in some embodiments of this application. This embodiment provides a method in which a control component 320 is disposed in the throttle tube 400 to control the connection or disconnection of the first cavity 211 and the second cavity 221.

[0098] like Figure 8 and Figure 9 As shown, multiple air outlets 410 are arranged at intervals along the axial direction of the throttling tube 400. The control element 320 is disposed inside the throttling tube 400. The driving element 310 can drive the control element 320 to move along the axial direction of the throttling tube 400. The control element 320 disconnects the air outlet 410 located on the side of the control element 320 away from the connecting hole 240 from the connecting hole 240.

[0099] Specifically, the control element 320 includes an elastic annular structure 321, which is inserted into the throttle tube 400. When the balloon 200 is in its initial state, the elastic annular structure 321 is located on the side of all air outlets 410 closest to the first balloon body 210, preventing airflow from entering the second balloon body 220 through the air outlets 410. When it is necessary to compress the puncture site, i.e., when it is necessary for the first balloon body 210 and the second balloon body 220 to connect, the drive element 310 moves the elastic annular structure 321 towards the side closest to the second balloon body 220. Figure 8 The movement of the right side of the first bladder 210 connects the vent 410 with the second bladder 220, allowing airflow into the second bladder 220. Furthermore, the position of the elastic annular structure 321 within the throttling tube 400 controls the number of vents 410 connected to the first bladder 210, thus allowing adjustment of the inflation rate by regulating the position of the elastic annular structure 321 within the throttling tube 400.

[0100] It should be noted that the adjustment of the inflation rate between the first bladder 210 and the second bladder 220 is not limited to the form given above. In other embodiments, the control element 320 can also be configured as a structure that realizes the airflow release rate by rotation. For example, the elastic annular structure 321 of the control element 320 is provided with an opening in the circumference, and then the size of the opening is adjusted by a rotation mechanism.

[0101] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A hemostatic pant characterized in that, include: Pants body; A balloon is disposed on the inner side of the pants body. The balloon includes a first bladder and a second bladder connected to each other. The first bladder has a first cavity and can be inflated to increase the volume of the first cavity. The second bladder has a second cavity and can be inflated to increase the volume of the second cavity. The balloon has a connecting hole between the first cavity and the second cavity. A control component is provided corresponding to the connecting hole and is used to control the opening or closing of the connecting hole, so as to control the connection or separation between the first cavity and the second cavity; The control component includes a drive element and a control element. The control element is disposed in the communication hole. One end of the drive element is connected to the control element, and the other end of the drive element extends out of the pants body. By pushing or pulling the drive element, the control element is driven to move linearly, so that the first cavity and the second cavity are connected or disconnected.

2. The hemostatic pant as claimed in claim 1, characterized in that The first bladder contains gas, which makes the pressure inside the first cavity greater than the external pressure. When the first cavity and the second cavity are not connected, the pressure inside the first cavity is greater than the pressure inside the second cavity. The second bladder is further away from the pants than the first bladder.

3. The hemostatic pant as claimed in claim 2, characterized in that The elastic modulus of the outer wall of the second capsule is less than that of the outer wall of the first capsule.

4. The hemostatic pants according to any one of claims 1-3, characterized in that, The driving component includes a pull rod, and the control component includes an elastic sealing element connected to the pull rod. The elastic sealing element is used to seal the connecting hole.

5. The hemostatic pant according to any one of claims 1-3, characterized in that, The drive unit is provided with an inflation channel, which is connected to the first cavity, and a sealing plug is detachably connected to the end of the inflation channel away from the first cavity.

6. The hemostatic pant according to any one of claims 1-3, characterized in that, The hemostatic pants also include a throttling tube, at least a portion of which is disposed within the second cavity. One end of the throttling tube is connected to the connecting hole, and a plurality of air vents are arranged on the tube wall of the throttling tube, which are connected to the second cavity.

7. The hemostatic pants according to claim 6, characterized in that, The plurality of air outlets are arranged at intervals along the axial direction of the throttling tube, the control element is disposed inside the throttling tube, and the driving element is capable of driving the control element to move along the axial direction of the throttling tube, wherein the control element can control the number of air outlets connected to the connecting hole.

8. The hemostatic pants according to any one of claims 1-3, characterized in that, The first bladder is connected to the trouser body, and the second bladder is disposed on the side of the first bladder away from the trouser body. The second bladder has a first side for contact with the wound, and the first side is provided with a coagulation material or a fluid guiding structure.

9. The hemostatic pant according to any one of claims 1-3, characterized in that, The pants body includes a pant body and an elastic band, the elastic band being connected to the pant body, and the balloon being disposed on the elastic band and located on the side of the elastic band facing the inside of the pant body.

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