Tourniquet

Abstract

The tourniquet comprises a tourniquet body and an identification mark, and the tourniquet body is used for surrounding the arm of a user and is provided with a reference part; the identification mark is arranged on the belt body and at least comprises a first mark and a second mark, the belt body is constructed to enable the reference part to be selectively aligned with any one of the first mark and the second mark during use, and the first mark is constructed to be used for representing the arm circumference of the arm of a user; the second identifier is configured to represent the intensity of pressure applied to the arm, and the intensity of pressure represented by the second identifier corresponds to the arm circumference represented by the first identifier. According to the technical scheme, standard pressure calibration can be correspondingly provided for arms with different arm circumferences, so that an operator can judge the pressure applied to the arms by the tourniquet conveniently, the use requirements such as vein blood drawing, blood flow control and hemostasis are met through the tourniquet, the operation difficulty is reduced, and the operation efficiency is improved. And the device has the advantages of simple structure and low manufacturing cost.

Description

Technical Field

[0001] This disclosure relates to the field of medical device technology, and more specifically, to a tourniquet. Background Technology

[0002] When drawing blood, a tourniquet is usually tied tightly around the arm to block venous blood flow, reduce venous reflux, and make the vein bulge so that it is easier to insert the needle to draw blood.

[0003] In related technologies, a pressure detector is installed on the tourniquet to determine the pressure applied to the arm, thus avoiding insufficient pressure that could cause bleeding or excessive pressure that could impede blood flow and affect blood collection. However, this method makes the tourniquet structure more complex and the manufacturing cost higher, resulting in lower applicability. Summary of the Invention

[0004] The purpose of this disclosure is to provide a tourniquet that allows operators to judge the pressure applied to the arm by the tourniquet, reduces the difficulty of operation, and has the advantages of simple structure and low manufacturing cost.

[0005] To achieve the above objectives, this disclosure provides a tourniquet, comprising: a tourniquet body for wrapping around a user's arm and having a reference portion; and an identification mark disposed on the tourniquet body and including at least a first mark and a second mark, wherein the tourniquet body is configured such that, in use, the reference portion can be selectively aligned with either the first mark or the second mark, the first mark being configured to indicate the arm circumference of the user's arm, and the second mark being configured to indicate the pressure applied to the arm, wherein the pressure indicated by the second mark corresponds to the arm circumference indicated by the first mark.

[0006] Optionally, the number of the first identifiers is one or more, and the plurality of the first identifiers are arranged at intervals along the extension direction of the belt body; the number of the second identifiers is one or more, and the plurality of the second identifiers are arranged at intervals along the extension direction of the belt body; wherein, the pressure represented by each second identifier corresponds one-to-one with the arm circumference represented by each first identifier, and the structural features of the pair of first identifiers and second identifiers representing a corresponding pair of arm circumferences and pressures are the same.

[0007] Optionally, each of the first identifiers is constructed with different structural features, or each of the second identifiers is constructed with different structural features.

[0008] Optionally, the structural features of the first identifier include at least one of a coating structure, a color structure, a pattern structure, a shape structure, and a text structure; and / or, the structural features of the second identifier include at least one of a coating structure, a color structure, a pattern structure, a shape structure, and a text structure.

[0009] Optionally, the second identifier is used to indicate that the pressure applied to the arm is 10 mmHg-220 mmHg.

[0010] Optionally, the identification mark further includes a third mark, which indicates that the pressure applied to the arm is greater than the pressure applied to the arm as indicated by the second mark; the pressure indicated by the third mark corresponds to the arm circumference indicated by the first mark and / or the pressure indicated by the second mark. Optionally, the belt body has a first surface and a second surface arranged opposite to each other along its own thickness direction, and the identification mark is provided on at least one of the first surface and the second surface.

[0011] Optionally, the identification mark is provided on both the first surface and the second surface; wherein, under the same arm circumference, the second mark located on the first surface is configured to indicate a different pressure applied to the arm than the second mark located on the second surface; and / or, the structural features of the identification mark located on the first surface are configured to be different from the structural features of the identification mark located on the second surface.

[0012] Optionally, the tourniquet further includes a locking portion configured to lock the tourniquet body in an unlockable manner in a use position when the tourniquet body is wrapped around the user's arm and the reference portion is selectively aligned with either the first mark or the second mark.

[0013] Optionally, the locking part includes a fixing clip, which, in the use position, can clamp onto the reference part and the corresponding first mark or second mark; or, the locking part includes a snap-fit ​​structure, which, in the use position, can lock onto the reference part and the corresponding first mark or second mark.

[0014] Through the above-described technical solution, namely the tourniquet provided in this disclosure, the tourniquet has a first mark and a second mark on its body. The first mark is configured to indicate the user's arm circumference, and the second mark is configured to indicate the pressure applied to the arm. The pressure indicated by the second mark corresponds to the arm circumference indicated by the first mark. Thus, by setting the first and second marks, a standard pressure calibration can be provided for arms with different circumferences. That is, the pressure applied by the tourniquet to the corresponding arm can be appropriately adjusted, achieving hemostasis without causing excessive pressure on the arm, facilitating subsequent procedures such as blood collection and reducing user discomfort. Therefore, when using the tourniquet body… For example, the reference part of the tourniquet body can be adaptively aligned with the first mark to determine the circumference of the user's arm. Then, based on the corresponding arm circumference value, the reference part can be directly and adaptively adjusted to align with the second mark corresponding to that arm circumference value. This allows the tourniquet to be tightened appropriately on the user's arm. Therefore, by setting the first and second marks, the operator can easily determine the pressure applied by the tourniquet to the arm, reducing the possibility of insufficient pressure causing bleeding in the arm, or excessive pressure causing poor blood flow, affecting issues such as blood collection. The operation is simple and reduces user discomfort.

[0015] In addition, by using the first and second markings, the operator can intuitively and clearly judge the pressure applied to the arm by the tourniquet. Compared with related technologies, there is no need to add components such as pressure detectors to the tourniquet. Obviously, the overall structure of the tourniquet provided in this disclosure is simpler and easier to install and prepare on site, reducing production and manufacturing costs and making it more applicable.

[0016] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the tourniquet provided in the first embodiment of this disclosure; Figure 2 yes Figure 1 A magnified view of a portion of location A in the diagram; Figure 3 This is a schematic diagram of a tourniquet provided in a second embodiment of the present disclosure, wherein the tourniquet body is exemplarily shown wrapped around the user's arm.

[0018] Explanation of reference numerals in the attached figures 1-Body; 110-First surface; 2-Arm; 3-Identification mark; 310-First mark; 320-Second mark; 4-Locking part; 410-Fixing clip; 420-Snap-on structure. Detailed Implementation

[0019] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0020] In this disclosure, unless otherwise stated, "inner" and "outer" refer to the inner and outer contours relative to the outline of the component or structure itself. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same elements.

[0021] According to a first aspect of this disclosure, a tourniquet is provided, with reference to... Figures 1 to 3 As shown, the tourniquet includes a band body 1 and an identification mark 3. The band body 1 is used to wrap around the user's arm 2 and has a reference portion. The identification mark 3 is disposed on the band body 1 and includes at least a first mark 310 and a second mark 320. The band body 1 is configured such that the reference portion can be selectively aligned with either the first mark 310 or the second mark 320 during use. The first mark 310 is configured to indicate the arm circumference of the user's arm 2, and the second mark 320 is configured to indicate the pressure applied to the arm 2. The pressure indicated by the second mark 320 corresponds to the arm circumference indicated by the first mark 310.

[0022] Through the above-described technical solution, namely the tourniquet provided in this disclosure, the tourniquet has a first identifier 310 and a second identifier 320 on its body 1. The first identifier 310 is configured to indicate the circumference of the user's arm 2, and the second identifier 320 is configured to indicate the pressure applied to the arm 2. The pressure indicated by the second identifier 320 corresponds to the arm circumference indicated by the first identifier 310. Thus, by setting the first identifier 310 and the second identifier 320, a standard pressure calibration can be provided for arms 2 with different circumferences. That is, the pressure applied by the tourniquet to the corresponding arm 2 can be made more appropriate, achieving hemostasis without causing excessive pressure on the arm 2, facilitating subsequent procedures such as blood collection and reducing user discomfort. When using the tourniquet body 1, for example, the reference part of the tourniquet body 1 can be adaptively aligned with the first mark 310, thereby enabling the determination of the arm circumference of the user's arm 2. Subsequently, based on the corresponding arm circumference value of the arm 2, the reference part can be directly and adaptively adjusted to align with the second mark 320 corresponding to that arm circumference value, so that the tourniquet can be tightened on the user's arm 2 with a suitable tightness. Therefore, by setting the first mark 310 and the second mark 320 as described above, it is convenient for the operator to judge the pressure applied by the tourniquet on the arm 2, reducing the possibility of insufficient pressure applied by the tourniquet causing bleeding in the arm, or excessive pressure causing poor blood flow affecting problems such as blood collection. The operation is simple and can reduce user discomfort.

[0023] It should be noted that the reference portion (not shown) of the aforementioned tourniquet body 1 can be understood as serving as a reference zero point after the tourniquet body 1 is wrapped around the user's arm 2. Thus, when the tourniquet body 1 is in use, by aligning the reference zero point with the corresponding first mark 310 or second mark 320, the operator can determine and measure the arm circumference of the user's arm 2, and accurately determine the pressure applied to the arm 2 by the operator. This disclosure does not specifically limit the exact design location of the reference portion (e.g., the reference zero point), and those skilled in the art can design it adaptively according to actual application needs.

[0024] In addition, by using the first mark 310 and the second mark 320, the operator can intuitively and clearly judge the pressure applied by the tourniquet to the arm 2. Compared with related technologies, there is no need to add components such as pressure detectors to the tourniquet. Obviously, the overall structure of the tourniquet provided by this disclosure is simpler and easier to install and prepare on site, reducing production and manufacturing costs and having higher applicability.

[0025] It should be noted that this disclosure does not specifically limit the number of the first identifier 310 and the second identifier 320. Those skilled in the art can adapt the number of the first identifier 310 and the second identifier 320 according to actual application needs. For example, in some embodiments not shown, the number of the first identifier 310 can be one, and the number of the second identifier 320 can also be one. With such an arrangement, in scenarios such as a tourniquet being used for single use by a user, after measuring and obtaining the arm circumference value of the user's arm 2, the corresponding tourniquet can be provided to the user to facilitate subsequent blood collection operations. That is, the operator can make a more intuitive judgment based on the first identifier 310 on the tourniquet and provide the user with a tourniquet corresponding to the arm circumference value of the obtained arm 2.

[0026] It is understood that the specific embodiment in which the number of the first identifier 310 and the number of the second identifier 320 can both be one is exemplary. For example, in some alternative embodiments, refer to Figures 1 to 3 As shown, there can be multiple first markings 310, and these first markings 310 are arranged at intervals along the extension direction of the belt body 1. There can also be multiple second markings 320, and these second markings 320 are arranged at intervals along the extension direction of the belt body 1. The pressure represented by each second marking 320 corresponds one-to-one with the arm circumference represented by each first marking 310. With this arrangement, when the belt body 1 is in use, for example, the reference part of the belt body 1 can be adaptively aligned with the corresponding first marking 310, thereby enabling the measurement and judgment of the arm circumference of the user's arm 2. Subsequently, based on the measured arm circumference value of the arm 2, the reference part can be directly and adaptively adjusted to align with the second marking 320 corresponding to that arm circumference value, so that the tourniquet can be tightened on the user's arm 2 with a more suitable tightness. This is beneficial to improving the applicability of the tourniquet and meeting the multi-purpose use requirements of the tourniquet.

[0027] When the number of first identifiers 310 is multiple, this disclosure does not specifically limit the number and arrangement of the multiple first identifiers 310. The purpose is to enable the multiple first identifiers 310 to measure and judge arms 2 with different arm circumferences. Those skilled in the art can design them adaptively according to actual application needs.

[0028] Furthermore, when there are multiple second identifiers 320, this disclosure does not specifically limit the number and arrangement of the multiple second identifiers 320. The purpose is to design them to correspond one-to-one with the multiple first identifiers 310, so that after the base part of the tourniquet body 1 is adaptively aligned with the corresponding second identifier 320, the tourniquet can be tied to the corresponding arm 2 with a suitable tightness, so as to achieve the hemostasis effect without causing excessive pressure on the arm 2. Those skilled in the art can design them adaptively according to actual application needs. For example, the number and arrangement of each second identifier 320 can be designed adaptively according to the material and related structural dimensions (such as the thickness, width and length of the tourniquet body 1).

[0029] Optionally, in some embodiments, the second identifier 320 is used to indicate that the pressure applied to the arm 2 can be, for example, 10 mmHg-220 mmHg. This arrangement allows the tourniquet to meet different usage needs. For example, the tourniquet can meet the usage needs of most users, such as venous blood draw, blood flow control, and hemostasis. It is understood that the specific embodiment of the second identifier 320 indicating the pressure applied to the arm 2 is exemplary, and this disclosure is not limited thereto. Those skilled in the art can adapt it according to actual application needs.

[0030] It should be noted that after the tourniquet is tightly wrapped around the corresponding arm 2 and the reference part of the tourniquet body 1 is adaptively aligned with the corresponding second mark 320, in order to more intuitively demonstrate the effect of the tourniquet on the user's arm 2, this disclosure exemplarily uses the second mark 320 to represent the pressure applied to the arm 2 in millimeters of mercury (mmHg). It can be understood that since 1 mmHg ≈ 0.133 kPa, the second mark 320 can also be used to represent the pressure applied to the arm 2 converted to kilopascals (kPa). This disclosure does not make specific limitations in this regard.

[0031] Additionally, it should be noted that, for ease of understanding, the second mark 320 mentioned above, used to indicate the pressure applied to the arm 2, can also be understood by those skilled in the art as follows: after, for example, the tourniquet is tightly bound to the corresponding arm 2, and the reference portion of the tourniquet body 1 is adaptively aligned with the corresponding second mark 320, the second mark 320 can be used to indicate, for example, the tightening force, or force, or pressure, or binding pressure applied to the arm 2 by the tourniquet, so as to achieve the use requirements such as venous blood draw, blood flow control, and hemostasis through the tourniquet.

[0032] For example, in some embodiments, each second identifier 320 can be configured such that when the body 1 is in use, the second identifier 320 is used to indicate that the pressure applied to the arm 2 can be, for example, 50 mmHg-70 mmHg. This arrangement can achieve the goal of tightening the tourniquet to the corresponding arm 2 with a suitable tightness, so as to facilitate subsequent operations such as drawing blood from the arm 2.

[0033] Additionally, in some exemplary embodiments, each second identifier 320 may be configured such that, when the body 1 is in use, the second identifier 320 indicates that the pressure applied to the arm 2 can be, for example, 100 mmHg-120 mmHg. This arrangement allows the tourniquet to be tightened appropriately on the corresponding arm 2, facilitating operations such as arterial hemostasis at the arm 2. This disclosure is not limited thereto.

[0034] Considering that in order to provide more intuitive visual cues for the identification mark 3 and reduce the difficulty of use for operators, in some embodiments, reference is made to... Figure 1 and Figure 2 As shown, when the number of first markings 310 and second markings 320 is multiple, and the pressure represented by each second marking 320 corresponds one-to-one with the arm circumference represented by each first marking 310, the structural features of the pair of first markings 310 and second markings 320 representing the corresponding pair of arm circumferences and pressures can be the same. With this arrangement, when the band body 1 is in use, for example, the reference part of the band body 1 can be adaptively aligned with the corresponding first marking 310, thereby enabling the measurement and judgment of the arm circumference of the user's arm 2. Subsequently, based on the measured arm circumference value of the arm 2, the reference part can be directly and adaptively adjusted to be aligned with the second marking 320 corresponding to that arm circumference value. That is, it can be understood that the reference part can be directly adjusted to be aligned with the second marking 320 that has the same structural features as the first marking 310. This operation is convenient and can enable the tourniquet to be tied on the user's arm 2 with a suitable tightness, so as to facilitate operations such as venous blood draw or arterial hemostasis.

[0035] Additionally, in some implementations, references Figure 1 and Figure 2 As shown, each of the first identifiers 310 can be constructed with different structural features. This arrangement allows the operator to receive more intuitive visual cues through the first identifiers 310 with different structural features. This makes it easier for the operator to quickly identify and complete the measurement of the user's arm 2 circumference when using a tourniquet, which helps to reduce the difficulty of operation and improves accuracy.

[0036] It is understood that in other alternative embodiments, the second identifiers 320 may be constructed with different structural features. This disclosure does not specifically limit such variations, and those skilled in the art can design them adaptively according to actual application needs.

[0037] Those skilled in the art can adapt the specific structure of the first identifier 310 and the second identifier 320 according to the actual application requirements. The purpose is to enable the identification identifier 3 (such as the first identifier 310 and the second identifier 320) to provide more intuitive visual prompts and reduce the difficulty of use for operators.

[0038] For example, in some embodiments, the structural features of the first identifier 310 may include at least one of the following: coating structure (e.g., spraying different coating identifiers), color structure (e.g., spraying different color identifiers), pattern structure (e.g., setting different icons or symbols), shape structure (e.g., setting scale identifiers with different shapes), and text structure (e.g., setting different text identifiers, number identifiers, or letter identifiers). This arrangement, by adaptively designing the specific structure of each first identifier 310, can provide more intuitive visual cues, reduce the difficulty of use for operators, and has the advantages of simple structure and ease of on-site installation and preparation. This disclosure is not limited thereto.

[0039] In addition, in some embodiments, the structural features of the second identifier 320 may include at least one of the following: coating structure (e.g., spraying different coating identifiers), color structure (e.g., spraying different color identifiers), pattern structure (e.g., setting different icons or symbols), shape structure (e.g., setting scale identifiers with different shapes), and text structure (e.g., setting different text identifiers, number identifiers, or letter identifiers). This is so that by adaptively designing the specific structure of each second identifier 320, more intuitive visual cues can be provided to the operator, reducing the difficulty of operation for the operator, and having the advantages of simple structure and easy installation and preparation. This disclosure is not limited thereto.

[0040] It should be noted that the specific embodiment in which the structural features of the pair of first identifiers 310 and second identifiers 320 representing the corresponding pair of arm circumferences and pressures are the same is exemplary. In other alternative embodiments, the structural features of the pair of first identifiers 310 and second identifiers 320 representing the corresponding pair of arm circumferences and pressures may also be different. This disclosure does not specifically limit such variations. The purpose is to facilitate identification by operators and reduce the difficulty of operation for operators. Those skilled in the art can design adaptively according to actual application needs.

[0041] Optionally, in some embodiments not shown, the identification mark 3 may also include a third mark (not shown). The third mark indicates that the pressure applied to the arm 2 is greater than the pressure applied to the arm 2 indicated by the second mark 320. The pressure indicated by the third mark corresponds to the arm circumference indicated by the first mark 310 and / or the pressure indicated by the second mark 320. With this arrangement, the applicability of the tourniquet can be improved by setting the third mark. That is, after the reference part of the tourniquet body 1 is adaptively aligned with the corresponding third mark, since the pressure applied to the arm 2 is greater than the pressure applied to the arm 2 indicated by the second mark 320, the tightening force, tightening force, action force, pressure, or binding pressure applied to the arm 2 by the tourniquet can be greater. In this way, in emergency situations, the tourniquet can quickly and completely block arterial blood flow, buy time for subsequent treatment, and meet the multi-purpose use requirements of the tourniquet.

[0042] It should be noted that this disclosure does not specifically limit the number, location, or structural features of the third identifier. Those skilled in the art can design it adaptively according to actual application needs. For example, there can be multiple third identifiers, corresponding to the number of first identifiers 310 and second identifiers 320. The specific structural features of the third identifier can be designed adaptively according to the actual application needs of the tourniquet, with reference to the structural features of the first identifiers 310 and second identifiers 320. This disclosure will not elaborate further here.

[0043] In order to improve the applicability of tourniquets, in some implementations, reference is made to... Figure 1 and Figure 2 As shown, the tourniquet body 1 may have a first surface 110 and a second surface arranged opposite to each other along its own thickness direction. At least one of the first surface 110 and the second surface may be provided with an identification mark 3. For example, the identification mark 3 may be provided on both the first surface 110 and the second surface. With such arrangement, it is possible to realize, for example, venous blood drawing and arterial hemostasis operations through different surfaces of the tourniquet (e.g., the first surface 110 and the second surface), thereby improving the applicability of the tourniquet and meeting the multi-purpose use requirements of the tourniquet.

[0044] It should be noted that the above-mentioned identification mark 3 may be provided only on the first surface 110, or the above-mentioned identification mark 3 may be provided only on the second surface. This disclosure does not specifically limit such variations, and those skilled in the art can design them adaptively according to actual application needs.

[0045] In addition, considering that identification marks 3 are provided on both the first surface 110 and the second surface, in order to facilitate the distinction between the uses of the first surface 110 and the second surface, in some embodiments, the structural features of the identification mark 3 located on the first surface 110 can be constructed to be different from the structural features of the identification mark 3 located on the second surface. In this way, the identification marks 3 with different structural features can provide operators with more intuitive visual prompts, making it easier for operators to distinguish the uses of the first surface 110 and the second surface.

[0046] For example, in some embodiments, the identification mark 3 may further include a fourth mark (not shown) respectively disposed on the first surface 110 and a fifth mark (not shown) disposed on the second surface. The fourth mark may include, for example, a mark on the first surface 110 indicating blood drawing, and the fifth mark may include, for example, a mark on the second surface indicating hemostasis. In this way, by distributing different marks on different surfaces (e.g., the first surface 110 and the second surface), it is convenient to provide operators with more intuitive visual prompts, so as to facilitate operators to distinguish the uses of the first surface 110 and the second surface. The overall structure is simple and easy to install and manufacture.

[0047] Furthermore, in order to enable operations such as venous blood draw and arterial hemostasis to be performed separately through different surfaces of the tourniquet (e.g., the first surface 110 and the second surface), in some embodiments, based on the identification mark 3 provided on both the first surface 110 and the second surface, the second mark 320 located on the first surface 110 for indicating the pressure applied to the arm 2 can be configured differently from the second mark 320 located on the second surface for indicating the pressure applied to the arm 2. That is, it can be understood that the specific design position of the second mark 320 can be adaptively designed on the first surface 110 and the second surface respectively, so that the identification mark 3 on the first surface 110 of the tourniquet can be used to perform operations such as venous blood draw, while the identification mark 3 on the second surface of the tourniquet can be used to perform operations such as arterial hemostasis.

[0048] It is understood that, for example, when the aforementioned third mark is adaptively designed on the first surface 110 and the second surface respectively, the third mark on the first surface 110 for indicating the pressure applied to the arm 2 may be different from the third mark on the second surface for indicating the pressure applied to the arm 2.

[0049] In some implementations, reference Figures 1 to 3As shown, the tourniquet may also include a locking part 4. The locking part 4 is configured such that when the tourniquet body 1 is wrapped around the user's arm 2 and the reference part is selectively aligned with either the first mark 310 or the second mark 320 in the use position, the tourniquet body 1 can be unlockably locked in the use position. With this arrangement, the tourniquet can be stably tightened on the corresponding arm 2 by the setting of the locking part 4, so that the deformation of the tourniquet body 1 can provide the aforementioned pressure to the corresponding arm 2, so as to facilitate, for example, venous blood draw or arterial hemostasis, with high reliability.

[0050] It should be noted that, in order to reduce the possibility of pain in the user's arm 2 caused by pressure from the locking part 4 at the locking position of the tourniquet body 1 and the locking part 4, after the tourniquet body 1 is tightly bound to the corresponding arm 2, the elasticity of the tourniquet body 1 can be used to first pull the locking position of the tourniquet body 1 and the locking part 4 away from the user's arm 2, and then lock the locking part 4 at the above-mentioned locking position. After the locking part 4 is locked, the elasticity of the tourniquet body 1 can be used to spring back the locking position of the tourniquet body 1 and the locking part 4 to fit the user's arm 2. In this way, the tourniquet can be stably bound to the corresponding arm 2, while reducing the possibility of pain in the user's arm 2 caused by pressure from the locking part 4.

[0051] In this disclosure, the specific structure of the locking part 4 is not specifically limited. The purpose is to enable the tourniquet to be stably and tightly bound to the corresponding arm 2. Those skilled in the art can adapt the specific structure of the locking part 4 according to the actual application requirements.

[0052] Exemplarily, in some implementations, reference is made to Figure 3 As shown, the locking part 4 may include a fixing clip 410. In the use position, the fixing clip 410 can clamp onto the base part and the corresponding first mark 310 or second mark 320. Thus, by setting the fixing clip 410, the tourniquet can be stably tied to the corresponding arm 2. Furthermore, by adaptively adjusting the position of the fixing clip 410 clamping onto the base part and the corresponding identification mark 3 (e.g., the first mark 310, the second mark 320, and the third mark), the tightness of the tourniquet body 1 can be adjusted to achieve the purpose of different users, such as venous blood drawing or arterial hemostasis. The structure is relatively simple and the operation is convenient.

[0053] The reference portion can be constructed in any suitable manner. For example, when the locking portion 4 includes a fixing clip 410, the reference portion can adopt at least one of the following: coating structure, color structure, pattern structure, shape structure or text structure, so as to facilitate the identification of the position of the reference portion and thus facilitate the alignment of the reference portion with the corresponding first mark 310 or second mark 320.

[0054] Furthermore, this disclosure does not specifically limit the specific structure of the aforementioned fixing clip 410. Those skilled in the art can design it adaptively according to actual application needs. For example, the fixing clip 410 can be any existing suitable medical shaping clip or medical molding clip, etc. The purpose is to enable the tourniquet to be stably tied to the corresponding arm 2 through the setting of the fixing clip 410.

[0055] Alternatively, refer to Figure 1 As shown, the locking part 4 may also include a buckle structure 420. In the use position, the buckle structure 420 can be locked to the base part and the corresponding first mark 310 or second mark 320. In this way, by setting the buckle structure 420, the tourniquet can be stably tied to the corresponding arm 2. And by adaptively adjusting the position of the buckle structure 420 locked to the corresponding identification mark 3 (e.g., the first mark 310, the second mark 320 and the third mark), the tightness of the tourniquet body 1 can be adjusted to achieve the purpose of different users, such as venous blood drawing or arterial hemostasis.

[0056] In this disclosure, the specific structure of the buckle structure 420 is not specifically limited. For example, the buckle structure 420 can be a common connecting buckle used on existing tourniquets. After passing through the buckle structure 420 at one end of the tourniquet body 1, the tourniquet can be stably tied to the corresponding arm 2. Those skilled in the art can design it adaptively according to actual application needs.

[0057] Additionally, it should be noted that when the locking part 4 includes the snap-fit ​​structure 420, a certain structural feature on the snap-fit ​​structure 420 can also serve as a reference part. For example, the edge of either end of the snap-fit ​​structure 420 in the extension direction of the belt body 1 can serve as a reference part, so as to align the reference part with the corresponding first mark 310 or second mark 320. Of course, the reference part can also adopt at least one of the following: coating structure, color structure, pattern structure, shape structure or text structure. When assembling the snap-fit ​​structure 420, the snap-fit ​​structure 420 can also be installed at the reference part, for example, the end edge of the snap-fit ​​structure 420 can be aligned with the reference part.

[0058] Alternatively, in some embodiments not shown, the locking part 4 may also include, for example, a Velcro structure, so that after the band body 1 is wrapped around the user's arm 2, the tourniquet can be stably fastened to the corresponding arm 2 by the Velcro structure. It is understood that the Velcro structure should be positioned to avoid the identification mark 3 so that the identification mark 3 can be observed; for example, the Velcro structure may be positioned in the middle of the width direction of the band body 1, while the identification mark 3 may be positioned at both ends of the width direction of the band body 1.

[0059] In addition, when the locking part 4 includes a Velcro structure, the reference part can adopt at least one of the following: coating structure, color structure, pattern structure, shape structure or text structure. In this way, after the reference part is aligned with the corresponding second mark 320, it can be fixed by the Velcro structure.

[0060] Based on the above embodiments, this disclosure exemplarily describes the process of using the tourniquet as follows: For example, when intravenous blood draw is required, the tourniquet body 1 is first wrapped around the user's arm 2. Then, for example, the reference part of the tourniquet body 1 is adaptively aligned with the corresponding first mark 310 on the first surface 110 to measure the arm circumference of the user's arm 2. Subsequently, based on the measured arm circumference value, the operator can directly and adaptively adjust the reference part to align with the second mark 320 on the first surface 110 corresponding to the arm circumference value. After the reference part is aligned with the corresponding second mark 320, the reference part can be unlockably locked to the corresponding second mark 320 by the locking part 4. In this way, the tourniquet can be stably and tightly bound to the corresponding arm 2, and the tourniquet can be tied to the user's arm 2 with a suitable tightness to facilitate subsequent intravenous blood draw.

[0061] Similarly, for example, when arterial hemostasis is required, the tourniquet body 1 is first wrapped around the user's arm 2. Then, for example, the reference part of the tourniquet body 1 is adaptively aligned with the corresponding first mark 310 on the second surface to measure the arm circumference of the user's arm 2. Subsequently, based on the measured arm circumference value, the operator can directly and adaptively adjust the reference part to align with the second mark 320 on the second surface corresponding to the arm circumference value. After the reference part is aligned with the corresponding second mark 320, the reference part can be unlockably locked to the corresponding second mark 320 by the locking part 4. In this way, the tourniquet can be stably and tightly bound to the corresponding arm 2, and the tourniquet can be bound to the user's arm 2 with a suitable tightness, thus achieving the purpose of arterial hemostasis.

[0062] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0063] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0064] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A tourniquet, characterized in that, include: It includes a body designed to wrap around the user's arm and has a reference section; and An identification mark is provided on the belt body and includes at least a first mark and a second mark. The belt body is configured such that, in use, the reference portion can be selectively aligned with either the first mark or the second mark. The first mark is configured to indicate the arm circumference of the user's arm, and the second mark is configured to indicate the pressure applied to the arm. The pressure indicated by the second mark corresponds to the arm circumference indicated by the first mark.

2. The tourniquet according to claim 1, characterized in that, The number of the first identifiers is one or more, and the plurality of the first identifiers are arranged at intervals along the extension direction of the belt body; the number of the second identifiers is one or more, and the plurality of the second identifiers are arranged at intervals along the extension direction of the belt body. The pressure represented by each of the second identifiers corresponds one-to-one with the arm circumference represented by each of the first identifiers, and the structural features of the corresponding pair of first identifiers and second identifiers representing the arm circumference and the pressure are the same.

3. The tourniquet according to claim 2, characterized in that, Each of the first identifiers is constructed with different structural features, or each of the second identifiers is constructed with different structural features.

4. The tourniquet according to claim 2 or 3, characterized in that, The structural features of the first identifier include at least one of coating structure, color structure, pattern structure, shape structure, and text structure; And / or, The structural features of the second identifier include at least one of coating structure, color structure, pattern structure, shape structure, and text structure.

5. The tourniquet according to claim 1, characterized in that, The second identifier is used to indicate that the pressure applied to the arm is 10 mmHg-220 mmHg.

6. The tourniquet according to claim 1, characterized in that, The identification mark further includes a third mark, which indicates that the pressure applied to the arm is greater than the pressure applied to the arm as indicated by the second mark; The pressure represented by the third identifier corresponds to the arm circumference represented by the first identifier and / or the pressure represented by the second identifier.

7. The tourniquet according to claim 1, characterized in that, The belt body has a first surface and a second surface arranged opposite to each other along its own thickness direction, and the identification mark is provided on at least one of the first surface and the second surface.

8. The tourniquet according to claim 7, characterized in that, The identification mark is provided on both the first surface and the second surface; Wherein, within the same arm circumference, the second mark located on the first surface is used to indicate a pressure applied to the arm that is different from the pressure applied to the arm indicated by the second mark located on the second surface; and / or, The structural features of the identification mark located on the first surface are constructed to be different from the structural features of the identification mark located on the second surface.

9. The tourniquet according to claim 1, characterized in that, The tourniquet also includes a locking part configured such that when the tourniquet body is wrapped around the user's arm in a use position such that the reference part can be selectively aligned with either the first mark or the second mark, the tourniquet body can be unlockably locked in the use position.

10. The tourniquet according to claim 9, characterized in that, The locking part includes a retaining clip, which, in the usage position, can clamp onto the base part and the corresponding first or second mark; or... The locking part includes a snap-fit ​​structure, which, in the usage position, can snap onto the base part and the corresponding first mark or second mark.

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