Patent Description:
Since ancient times, humans have found that using belts to tighten severed limbs, then coupled with sticks to tighten and pressurize, can effectively reduce blood loss.

However, most tourniquets in the prior art only have a single tightening device, for example, only one rod member, one ratchet, or one buckle, etc. Therefore, due to size difference between to-be-compressed limbs, when using the tightening device, it is difficult to ensure reliable compression, which is prone to cause insufficient pressure force.

In addition, in requirements of modern combat first aid, when personally operating a tourniquet, a person is required to complete all steps of pressurizing a limb within <NUM> seconds to prevent excessive blood loss. However, as mentioned above, because the tourniquets in the prior art have the aforesaid problems, when operated the tourniquet by one person, it is more difficult to complete the hemostasis steps within the time limit, causing many difficulties. Related art is disclosed in <CIT>, <CIT>, <CIT>, <CIT>, <CIT>, <CIT> and <CIT>.

The invention is defined by appended claim <NUM>. In the tourniquet with multi-angle tightening device of the present application, as the tightening device that can pressurize at multiple angles is used, the pressure force to a limb is sufficient, and efficiency of tourniquet usage is increased, so using the tourniquet is more convenient. Furthermore, in some embodiments of the present application, more than one tightening device is provided, which not only can achieve the aforesaid effects, but also has better reliability.

On the basis of the aforesaid purpose, the present application provides a tourniquet with a multi-angle tightening device, including a tourniquet main body, a first tightening device, and a fixing element. The first tightening device is rotatably disposed on the tourniquet main body and includes at least three pillar-shaped structures. The at least three pillar-shaped structures respectively extend outward from a rotation center of the first tightening device. There is a first width between any two adjacent pillar-shaped structures. The fixing element is disposed adjacent to the first tightening device and is disposed on the tourniquet main body. The first width is wider than the second width of the fixing element to avoid interference between the first tightening device and the fixing element. A distance from the rotation center of the first tightening device to the fixing element is less than an extension length of any one of the at least three pillar-shaped structures from the rotation center. The fixing element comprises at least one limit unit, a first curved portion, and a second curved portion. The at least one limit unit is disposed between the first curved portion and the second curved portion, the first curved portion forms a first groove, and the second curved portion forms a second groove, and concave directions of the first groove and the second groove are opposite. One of the pillar-shaped structures of the first tightening device is extended to the fixing element to be positioned against one of the first curved portion or the second curved portion.

Preferably, the tourniquet main body includes a first tightening strip, a second tightening strip, and a cover layer. A first portion and a second portion of the second tightening strip are connected to the first tightening strip, a third portion of the second tightening strip is movably disposed on the first tightening strip, and the cover layer covers the first tightening strip and the second tightening strip.

Preferably, the first tightening device is connected to the third portion of the second tightening strip through an opening of the cover layer.

Preferably, a first interval between the at least one limit unit and a top of a lateral wall of the first curved portion and a second interval between the at least one limit unit and a top of a lateral wall of the second curved portion are less than a thickness of the first tightening device.

Preferably, the multi-angle tightening device further includes a second tightening device. The second tightening device corresponds to the first tightening device and is disposed on the tourniquet main body, and the fixing element is disposed between the first tightening device and the second tightening device.

Preferably, a first attachment structure and a second attachment structure are respectively disposed on a bottom surface and a top surface of the tourniquet main body. After the tourniquet main body is wound around, the first attachment structure and the second attachment structure are attached to each other.

In order to understand the technical features, content and advantages of the present application, and the effects which can achieve, the present application is hereby accompanied with the drawings and described in detail in the form of embodiments as follows. The drawings which are only for purpose of illustration and auxiliary explanation, and may not be the true proportion and precise configuration after the implementation of the present application. Therefore, it should not be interpreted based on the proportion and configuration relationship of the accompanied drawings, and limit the scope of rights of the present application in actual implementation.

The embodiments of the present application will be described below with reference to the relevant drawings. For ease of understanding, the same components in the following embodiments are described with the same symbols.

Please refer to <FIG>, which are a first top view, first to second sectional views, first to fourth implementation schematic diagrams, a schematic diagram of a first tightening device, and a schematic diagram of a fixing element according to a tourniquet with a multi-angle tightening device of the present application.

The present application provides a tourniquet with a multi-angle tightening device, including a tourniquet main body <NUM>, a first tightening device <NUM>, and a fixing element <NUM>. The first tightening device <NUM> is rotatably disposed on the tourniquet main body <NUM> and includes at least three pillar-shaped structures. The at least three pillar-shaped structures respectively extend outward from a rotation center of the first tightening device <NUM>. There is a first width W1 between the pillar-shaped structures. The fixing element <NUM> is disposed adjacent to the first tightening device <NUM> and is disposed on the tourniquet main body <NUM>.

As illustrated in part (a) to part (c) of <FIG>, a number of the pillar-shaped structures can be three, four, six, etc. In detail, the number of pillar-shaped structures can also be any number such as five or more than six. Furthermore, as illustrated in <FIG>, the first width W1 is wider than the second width W2 of the fixing element <NUM> to avoid interference between the first tightening device <NUM> and the fixing element <NUM>. In addition, a position defined by the first width W1 depends on the length of the pillar-shaped structure and a position of the fixing element <NUM>.

A distance from the rotation center of the first tightening device <NUM> to the fixing element <NUM> is less than an extension length of any one of the pillar-shaped structures from the rotation center. In other words, the length of the pillar-shaped structures must be ensured to be sufficiently extended to the fixing element <NUM> so that the fixing element <NUM> can fix the position of the first tightening device <NUM>.

In one embodiment, the tourniquet main body <NUM> can penetrate a first buckle <NUM> and a second buckle <NUM>. Therefore, the length of the tourniquet main body <NUM> can be adjusted, and the position of the tourniquet main body <NUM> can be restricted. When hemostasis is required, the tourniquet main body <NUM> can be wound around the limb that needs hemostasis, and then the first tightening device <NUM> can be used to tighten the tourniquet main body <NUM>, so that the tourniquet main body <NUM> can further pressurize the limb.

More detailly, taking the first tightening device <NUM> including three pillar-shaped structures as an example, when rotating the first tightening device <NUM>, at most rotating for every <NUM> degrees, the position of the first tightening device <NUM> can be fixed by the fixing element <NUM>.

Similarly, if the first tightening device <NUM> includes four pillar-shaped structures, when rotating the first tightening device <NUM>, at most rotating for every <NUM> degrees, the position of the first tightening device <NUM> can be fixed by the fixing element <NUM>.

Similarly, if the first tightening device <NUM> includes six pillar-shaped structures, when rotating the first tightening device <NUM>, at most rotating for every <NUM> degrees, the position of the first tightening device <NUM> can be fixed by the fixing element <NUM>. Therefore, the present invention is suitable to users of various body types.

Furthermore, the fixing element <NUM> includes at least one limit unit <NUM>, a first curved portion <NUM>, and a second curved portion <NUM>. The at least one limit unit <NUM> can be disposed between the first curved portion <NUM> and the second curved portion <NUM>. The first curved portion <NUM> forms a first groove. The second curved portion <NUM> forms a second groove. Concave directions of the first groove and the second groove are opposite.

Therefore, if the first tightening device <NUM> is rotated, the second tightening strip <NUM> will move toward a top surface of the cover layer <NUM>, causing the tourniquet main body <NUM> to be tightened and to pressurize a limb. Furthermore, in one embodiment, in order to make the first tightening device <NUM> be not easily damaged, the first tightening device <NUM> can include aluminum alloy.

As illustrated in <FIG>, in order to fix the first tightening device <NUM> and the second tightening device <NUM>, the first tightening device <NUM> can be positioned against one of the first curved portion <NUM> or the second curved portion <NUM>.

As illustrated in <FIG>, in one embodiment, the limit unit <NUM> of the present application can be disposed between the first curved portion <NUM> and the second curved portion <NUM>. For example, the limit unit <NUM> can be disposed at the center of the fixing element <NUM>. The limiting unit <NUM> can be made of elastic material, such as polypropylene (Polypropylene, PP). A first interval G1 between the limit unit <NUM> and the top of the lateral wall of the first curved portion <NUM>, and a second interval G2 between the limit unit <NUM> and the top of the lateral wall of the second curved portion <NUM> are less than a thickness D1 of the first tightening device <NUM> and the second tightening device <NUM>.

Therefore, after the first tightening device <NUM> passes through the first curved portion <NUM> or the second curved portion <NUM>, and the limit unit <NUM>; the first tightening device <NUM> is restricted in the first curved portion <NUM> or the second curved portion <NUM>.

Furthermore, a top of the limit unit <NUM> can be a three-dimensional structure with a smooth curved surface such as a hemisphere, an ellipsoid, etc., and the tops of the lateral walls of the first curved portion <NUM> and the second curved portion <NUM> can be rounded or chamfered to facilitate the first tightening device <NUM> and the second tightening device <NUM> to slide through.

As illustrated in <FIG>, in another embodiment, the limit unit <NUM> of the present application can also be disposed at another position. For example, two limit units <NUM> can be respectively disposed at the top of the lateral walls of the first curved portion <NUM> and the second curved portion <NUM> adjacent to the fixing element <NUM>. The limiting units <NUM> can also be made of elastic material, such as polypropylene (Polypropylene, PP). The first interval G1 between the limit unit <NUM> and the top of the lateral wall of the first curved portion <NUM>, and the second interval G2 between the limit unit <NUM> and the top of the lateral wall of the second curved portion <NUM> are less than the thickness D1 of the first tightening device <NUM> and the second tightening device <NUM>.

In one embodiment, as illustrated in <FIG>, the tourniquet main body <NUM> includes a first tightening strip <NUM>, a second tightening strip <NUM>, and a cover layer <NUM>. As illustrated in <FIG>, a first portion and a second portion of the second tightening strip <NUM> are connected to the first tightening strip <NUM>, and a third portion of the second tightening strip <NUM> is movably disposed on the first tightening strip <NUM>. The cover layer <NUM> can cover the first tightening strip <NUM> and the second tightening strip <NUM>. The first tightening device <NUM> is connected to the third portion of the second tightening strip <NUM> through an opening of the cover layer <NUM>.

In detail, the first portion and the second portion of the second tightening strip <NUM> can be respectively located at two ends of the first tightening strip <NUM>. The first portion of the second tightening strip <NUM> can be sewed together with the first tightening strip <NUM>, and the second portion of the second tightening strip <NUM> and one end of the first tightening strip <NUM> can be connected to the first buckle <NUM>.

Furthermore, in this embodiment, the first interval G1 between the limit unit <NUM> and the top of the lateral wall of the first curved portion <NUM>, and the second interval G2 between the limit unit <NUM> and the top of the lateral wall of the second curved portion <NUM> are less than the thickness D1 of the first tightening device <NUM>. Therefore, similar to the embodiment in which the limit unit <NUM> is disposed at the center of the fixing element <NUM>, the first tightening device <NUM> can be restricted in the first curved portion <NUM> and the second curved portion <NUM>.

Similarly, in this embodiment, the top of the limit unit <NUM> can also be a three-dimensional structure with a smooth curved surface such as a hemisphere, an ellipsoid, etc., and the tops of the lateral walls of the first curved portion <NUM> and the second curved portion <NUM> can be rounded or chamfered to facilitate the first tightening device <NUM> and the second tightening device <NUM> to slide through.

In addition to the aforesaid embodiment including the second tightening strip <NUM>, the present application can also have other implementation forms. As illustrated in <FIG>, the second tightening strip <NUM> and the third tightening strip <NUM> can also need not to be provided in the tourniquet with the multi-angle tightening device of the present application. In detail, the first tightening device <NUM> can be directly disposed on the first tightening strip <NUM>. As illustrated in <FIG>, when the first tightening device <NUM> includes pillar-shaped structures, the fixing element <NUM> needs to be provided. When the first tightening device <NUM> is a ratchet or other tightening device that can fix its own position, the fixing element <NUM> can be omitted.

In addition to the aforesaid embodiments, as illustrated in <FIG>, in order to realize the multi-angle tightening function, the tourniquet with the multi-angle tightening device of the present invention can further include a second tightening device <NUM>. The second tightening device <NUM> can correspond to the first tightening device <NUM> and is disposed on the tourniquet main body <NUM>. The fixing element <NUM> is disposed between the first tightening device <NUM> and the second tightening device <NUM>.

In one embodiment, as illustrated in <FIG>, as there is the second tightening device <NUM>, the first tightening device <NUM> can include at least two pillar-shaped structures, which form a rod member, and the second tightening device <NUM> can also be a rod member.

In one embodiment, the tourniquet main body <NUM> can be wound around the limb which needs hemostasis, and then the tourniquet main body <NUM> can be tightened by the first tightening device <NUM>, so that the tourniquet main body <NUM> can further pressurize the limb. After that, the first tightening device <NUM> is fixed in position by the fixing element <NUM>. Besides, due to differences in the limb sizes among individuals, when the first tightening device <NUM> is fixed by the fixing element <NUM>, the pressure force to the limbs may not be enough. At this time, the second tightening device <NUM> can be used to make the tourniquet main body <NUM> to be further tightened, thereby making the tourniquet main body <NUM> can further pressurize the limb, thus achieving the effect of multi-angle tightening.

In this embodiment, as the first tightening device <NUM> can also include at least three pillar-shaped structures (for example, the first tightening device <NUM> in <FIG> includes four pillar-shaped structures), the user can also only use the first tightening device <NUM> to pressurize the limb, and the second emergency device <NUM> can be used depending on requirement.

In one embodiment, the tourniquet main body <NUM> can include a first tightening strip <NUM>, a second tightening strip <NUM>, and a cover layer <NUM>. As illustrated in <FIG>, a first portion and a second portion of the second tightening strip <NUM> can be connected to the first tightening strip <NUM>, and a third portion of the second tightening strip <NUM> is movably disposed on the first tightening strip <NUM>. The cover layer <NUM> can cover the first tightening strip <NUM> and the second tightening strip <NUM>. The first tightening device <NUM> and the second tightening device <NUM> are connected to the third portion of the second tightening strip <NUM> through an opening of the cover layer <NUM>.

In detail, the first portion of the second tightening strip <NUM> can be sewed on the first tightening strip <NUM>. One end of the first tightening strip <NUM> and the second portion of the second tightening strip <NUM> can be connected to the first buckle <NUM>. Furthermore, as the third portion of the second tightening strip <NUM> is not sewed on the first tightening strip <NUM>, so the third portion of the second tightening strip <NUM> is movably disposed on the first tightening strip <NUM>.

Therefore, when the first tightening device <NUM> and the second tightening device <NUM> are rod members, if the first tightening device <NUM> and the second tightening device <NUM> are rotated, the second tightening strip <NUM> will move toward a top surface of the cover layer <NUM>, causing the tourniquet main body <NUM> to be tightened and to pressurize a limb. Furthermore, in one embodiment, in order to make the first tightening device <NUM> and the second tightening device <NUM> be not easily damaged, the first tightening device <NUM> and the second tightening device <NUM> can include aluminum alloy.

As illustrated in <FIG>, in order to fix the first tightening device <NUM> and the second tightening device <NUM>, the first tightening device <NUM> can be positioned against one of the first curved portion <NUM> or the second curved portion <NUM>, and the second tightening device <NUM> can be positioned against another one of the first curved portion <NUM> or the second curved portion <NUM>. In this configuration, even the pressure force of the first tightening device <NUM> to the first curved portion <NUM> or the second curved portion <NUM> is insufficient, the second tightening device <NUM> can further be used for secondary tightening to complete the process of pressing and hemostasis.

Therefore, after the first tightening device <NUM> passes through the first curved portion <NUM> or the second curved portion <NUM>, and the limit unit <NUM>; the first tightening device <NUM> is restricted in the first curved portion <NUM> or the second curved portion <NUM>. Similarly, after the second tightening device <NUM> passes through the first curved portion <NUM> or the second curved portion <NUM>, and the limit unit <NUM>; the second tightening device <NUM> is restricted in the first curved portion <NUM> or the second curved portion <NUM>.

Furthermore, in this embodiment, the first interval G1 between the limit unit <NUM> and the top of the lateral wall of the first curved portion <NUM>, and the second interval G2 between the limit unit <NUM> and the top of the lateral wall of the second curved portion <NUM> are less than the thickness D1 of the first tightening device <NUM> and the second tightening device <NUM>. Therefore, similar to the embodiment in which the limit unit <NUM> is disposed at the center of the fixing element <NUM>, the first tightening device <NUM> and the second tightening device <NUM> can be restricted in the first curved portion <NUM> and the second curved portion <NUM>.

Please refer to <FIG>, the first tightening device <NUM> and the second tightening device <NUM> can not only be the rod member including the pillar-shaped structures, but also can be in other forms. The plurality of tightening devices can make the tourniquet body <NUM> to pressurize the limbs multiple times.

In one embodiment, as illustrated in <FIG>, the first tightening device <NUM> can be a rod member, and the second tightening device <NUM> can be a ratchet or other tightening device that can fix its own position. In one embodiment, as illustrated in <FIG>, the first tightening device <NUM> can be a ratchet or other tightening device that can fix its own position, and the second tightening device <NUM> can be a rod member. In one embodiment, as illustrated in <FIG>, the first tightening device <NUM> can be a ratchet or other tightening device that can fix its own position, and the second tightening device <NUM> can also be a ratchet or other tightening device that can fix its own position.

Different forms of the tourniquet with the multi-angle tightening device provided in <FIG> of the present application can also have the structures in <FIG>. For example, the tourniquet main body <NUM> can also include the first tightening strip <NUM>, the second tightening strip <NUM>, and the cover layer <NUM>. The first curved portion <NUM> and the second curved portion <NUM> can also be formed in the fixing element <NUM>. Furthermore, there is only one rod member in <FIG>, so after the tourniquet main body <NUM> is tightened to pressurize a limb, only one rod member is restricted by the first curved portion <NUM> or the second curved portion <NUM>. Related descriptions can refer to the aforesaid structures, and will not be repeated herein again.

In <FIG>, the tourniquet with the multi-angle tightening device includes a tourniquet main body <NUM>, a first tightening device <NUM>, and a second tightening device <NUM>. The first tightening device <NUM> can be disposed on the tourniquet main body <NUM>. The second tightening device <NUM> corresponds to the first tightening device <NUM> and is disposed on the tourniquet main body <NUM>.

Furthermore, the first tightening device <NUM> can be a ratchet or other tightening device that can fix its own position, and the second tightening device <NUM> can also be a ratchet or other tightening device that can fix its own position. If the first tightening device <NUM> and the second tightening device <NUM> are both ratchets or other tightening devices that can fix their own positions, there is no need to additionally dispose the fixing element <NUM>, and the aforesaid fixing effect and the effect of pressurizing the limb with the tourniquet main body <NUM> multiple times can thereby being achieved.

In addition, the tourniquet with the multi-angle tightening device provided in <FIG> can also have the structures in <FIG>. Specifically, the tourniquet main body <NUM> can also include the first tightening strip <NUM>, the second tightening strip <NUM>, and the cover layer <NUM>. Furthermore, there is no rod member in the structures disclosed in <FIG>, so no fixing element <NUM> is required to be further disposed.

In one embodiment, as illustrated in <FIG> and <FIG>, the tourniquet main body <NUM> can include a first tightening strip <NUM>, a second tightening strip <NUM>, and a cover layer <NUM>. As illustrated in <FIG>, a first portion and a second portion of the second tightening strip <NUM> can be connected to the first tightening strip <NUM>, and a third portion of the second tightening strip <NUM> is movably disposed on the first tightening strip <NUM>. The cover layer <NUM> can cover the first tightening strip <NUM> and the second tightening strip <NUM>. The first tightening device <NUM> and the second tightening device <NUM> are connected to the third portion of the second tightening strip <NUM> through an opening of the cover layer <NUM>.

In detail, the first portion and the second portion of the second tightening strip <NUM> can be sewed on the first tightening strip <NUM>. Furthermore, as the third portion of the second tightening strip <NUM> is not sewed on the first tightening strip <NUM>, so the third portion of the second tightening strip <NUM> is movably disposed on the first tightening strip <NUM>.

Therefore, when the first tightening device <NUM> and the second tightening device <NUM> are rod members, if the first tightening device <NUM> and the second tightening device <NUM> are rotated, the second tightening strip <NUM> will move toward a top surface of the cover layer <NUM>, causing the tourniquet main body <NUM> to be tightened and to pressurize a limb.

In addition to the aforesaid disclosed structures, in one embodiment, as illustrated in <FIG>, the tourniquet main body <NUM> can include a third tightening strip <NUM>. A length of the third pressure strip <NUM> is shorter than that of the second tightening strip <NUM>. Two ends of the third tightening strip <NUM> are connected to the first tightening strip <NUM>, the second tightening strip <NUM>, or the cover layer <NUM>. The first tightening device <NUM> is connected to the third portion of the second tightening strip <NUM> through the opening of the cover layer <NUM>, and the second tightening device <NUM> is connected to the third tightening strip <NUM>.

In one embodiment, as illustrated in <FIG>, <FIG>, <FIG>, and <FIG>, at least one first tightening device <NUM> or second tightening device <NUM> is a rod member. The tourniquet main body <NUM> can include a first tightening strip <NUM>, a second tightening strip112, a third tightening strip <NUM>, and a cover layer <NUM>.

As illustrated in <FIG>, a first portion and a second portion of the second tightening strip <NUM> can be connected to the first tightening strip <NUM>, and a third portion of the second tightening strip <NUM> is movably disposed on the first tightening strip <NUM>. A first portion and a second portion of the third tightening strip <NUM> can be connected to the first tightening strip <NUM>, and a third portion of the third tightening strip <NUM> is movably disposed on the first tightening strip <NUM>. Both the second tightening strip <NUM> and the third tightening strip <NUM> can be sewed on the first tightening strip <NUM>. The cover layer <NUM> can cover the first tightening strip <NUM>, the second tightening strip <NUM>, and the third tightening strip <NUM>. The first tightening device <NUM> and the second tightening device <NUM> are connected to the second tightening strip <NUM> and the third portion of the third tightening strip <NUM> through the opening of the cover layer <NUM>.

Additionally, regarding the relationship of the first tightening device <NUM>, the second tightening device <NUM>, and the fixing element <NUM>, reference may be made to the aforesaid embodiments. In this embodiment, if the first tightening device <NUM> and the second tightening device <NUM> are rotated, the second tightening strip <NUM> can move toward the top surface of the cover layer <NUM>, and the third tightening strip <NUM> can move toward the top surface of the cover layer <NUM>, causing the tourniquet main body <NUM> to be tightened and to pressurize a limb.

As illustrated in <FIG>, a first portion and a second portion of the second tightening strip <NUM> can be connected to the first tightening strip <NUM>, and a third portion of the second tightening strip <NUM> is movably disposed on the first tightening strip <NUM>. A first portion and a second portion of the third tightening strip <NUM> can be connected to the second tightening strip <NUM>, and a third portion of the third tightening strip <NUM> is movably disposed on the second tightening strip <NUM>. The second tightening strip <NUM> can be sewed on the first tightening strip <NUM>. The third tightening strip <NUM> can be sewed on the first tightening strip <NUM>. The cover layer <NUM> can cover the first tightening strip <NUM>, the second tightening strip <NUM>, and the third tightening strip <NUM>. The first tightening device <NUM> and the second tightening device <NUM> are connected to the second tightening strip <NUM> and the third portion of the third tightening strip <NUM> through the opening of the cover layer <NUM>.

In one embodiment, as illustrated in <FIG>, <FIG>, <FIG>, and <FIG>, at least one first tightening device <NUM> or second tightening device <NUM> is a rod member. Another one of the first tightening device <NUM> or second tightening device <NUM> is a ratchet or other tightening device that can fix its own position. The tourniquet main body <NUM> can include a first tightening strip <NUM>, a second tightening strip112, a third tightening strip <NUM>, and a cover layer <NUM>.

As illustrated in <FIG>, a first portion and a second portion of the second tightening strip <NUM> can be connected to the first tightening strip <NUM>, and a third portion of the second tightening strip <NUM> is movably disposed on the first tightening strip <NUM>. A first portion and a second portion of the third tightening strip <NUM> can be connected to the cover layer <NUM>, and a third portion of the third tightening strip <NUM> is movably disposed on the cover layer <NUM>. The second tightening strip <NUM> can be sewed on the first tightening strip <NUM>. The third tightening strip <NUM> can be sewed on the cover layer <NUM>. The cover layer <NUM> can cover the first tightening strip <NUM> and the second tightening strip <NUM>. The first tightening device <NUM> is connected to the second tightening strip <NUM> and the third portion of the third tightening strip <NUM> through the opening of the cover layer <NUM>.

Additionally, regarding the relationship of the first tightening device <NUM>, the second tightening device <NUM>, and the fixing element <NUM>, reference may be made to the aforesaid embodiments. In this embodiment, if the first tightening device <NUM> and the second tightening device <NUM> are rotated, the second tightening strip <NUM> can move toward the top surface of the cover layer <NUM>, and the third tightening strip <NUM> can roll up part of the cover layer <NUM>, causing the tourniquet main body <NUM> to be tightened and to pressurize a limb.

In one embodiment, as illustrated in <FIG>, and <FIG> to <FIG>, the first tightening device <NUM> can be a ratchet or other tightening device that can fix its own position, and the second tightening device <NUM> can also be a ratchet or other tightening device that can fix its own position. The tourniquet main body <NUM> can include a first tightening strip <NUM>, a second tightening strip112, a third tightening strip <NUM>, and a cover layer <NUM>.

Additionally, in this embodiment, as the first tightening device <NUM> and the second tightening device <NUM> can be ratchets or other tightening devices that can fix their own positions, no fixing element <NUM> is additionally disposed, and related descriptions can refer to the aforesaid embodiments. In this embodiment, if the first tightening device <NUM> and the second tightening device <NUM> are rotated, the second tightening strip <NUM> can move toward the top surface of the cover layer <NUM>, and the third tightening strip <NUM> can move toward the top surface of the cover layer <NUM>, causing the tourniquet main body <NUM> to be tightened and to pressurize a limb.

Additionally, in this embodiment, as the first tightening device <NUM> and the second tightening device <NUM> can be ratchets or other tightening devices that can fix their own positions, no fixing element <NUM> is additionally added, and related descriptions can refer to the aforesaid embodiments. In this embodiment, if the first tightening device <NUM> and the second tightening device <NUM> are rotated, the second tightening strip <NUM> can move toward the top surface of the cover layer <NUM>, and the third tightening strip <NUM> can move toward the top surface of the cover layer <NUM>, causing the tourniquet main body <NUM> to be tightened and to pressurize a limb.

Additionally, in this embodiment, no fixing element <NUM> is additionally disposed, and related descriptions can refer to the aforesaid embodiments. In this embodiment, if the first tightening device <NUM> and the second tightening device <NUM> are rotated, the second tightening strip <NUM> can move toward the top surface of the cover layer <NUM>, and the third tightening strip <NUM> can roll up part of the cover layer <NUM>, causing the tourniquet main body <NUM> to be tightened and to pressurize a limb.

In addition to the aforesaid embodiment including the second tightening strip <NUM> and the third tightening strip <NUM>, the present application can also have other implementation forms. As illustrated in <FIG> and <FIG>, the second tightening strip <NUM> and the third tightening strip <NUM> can also need not to be provided in the tourniquet with the multi-angle tightening device of the present application. In detail, the first tightening device <NUM> and the second tightening device <NUM> can be sewed on the first tightening strip <NUM>. Furthermore, the first tightening device <NUM> and the second tightening device <NUM> can be rod members, ratchets or other tightening devices that can fix their own positions. When at least one of the first tightening device <NUM> and the second tightening device <NUM> is the rod member, as illustrated in <FIG>, the fixing element <NUM> needs to be provided. When the first tightening device <NUM> is a ratchet or other tightening device that can fix its own position, and the second tightening device <NUM> can also be a ratchet or other tightening device that can fix its own position, and the fixing element <NUM> may not be disposed.

Furthermore, as illustrated in <FIG>, <FIG>, <FIG>, and <FIG> to <FIG>. , the first attachment structure <NUM> and the second attachment structure <NUM> can be respectively disposed on a bottom surface and a top surface of the tourniquet main body <NUM>. Therefore, after the tourniquet main body <NUM> is wound around, the first attachment structure <NUM> and the second attachment structure <NUM> are attached to each other.

In one embodiment, the first attachment structure <NUM> and the second attachment structure <NUM> can include Velcro or other re-attachable elements. Therefore, after a user easily wind the tourniquet main body <NUM> up, the user can attach the first attachment structure <NUM> and the second attachment structure <NUM> to each other at first, and then uses the first tightening device <NUM> and the second tightening device <NUM> to tighten the tourniquet main body <NUM> to pressurize the limb. In this embodiment, using the first attachment structure <NUM> and the second attachment structure <NUM> can make the tourniquet main body <NUM> be more convenient for usage, thereby reducing emergency time.

Additionally, in one embodiment, please refer to <FIG>, in addition to the aforesaid structures, the tourniquet with multi-angle tightening device of the present application can also include a third attachment structure <NUM>. The third attachment structure <NUM> can be connected to the tourniquet main body <NUM>. The third attachment structure <NUM> is a strip structure, and one surface of the third attachment structure <NUM> is an attachment surface, which can be a Velcro or other re-attachable elements.

After the tourniquet main body <NUM> is wound around, the third attachment structure <NUM> can be attached to the first attachment structure <NUM> or the second attachment structure <NUM>. Another surface of the third attachment structure <NUM> is a surface for writing. The time that the tourniquet body <NUM> has being wound around can be written by a user on the writing surface of the third adhesive structure <NUM>, so as to avoid secondary injury caused by excessive pressurized time to a limb.

In one embodiment, one or both of the aforesaid first attachment structure <NUM> or the second attachment structure <NUM> can be omitted, and only the third attachment structure <NUM> is used to fix the tourniquet main body <NUM> after winding.

In summary, the tourniquet with the multi-angle tightening device of the present application has various implementation forms. In the tourniquet with the multi-angle tightening device of the present application, as the limb can be pressurized at multiple angles, the problem that different limb sizes cannot be reliably pressurized for hemostasis can be solved. The present application can increase the efficiency of using the tourniquet so that the tourniquet can be more convenient to use. Furthermore, as there is more than one tightening device, the tourniquet can still be used even any one of the tightening devices being failure, so the tourniquet with the multi-angle tightening device of the present application has better reliability.

Claim 1:
A tourniquet with a multi-angle tightening device, comprising:
a tourniquet main body (<NUM>);
a first tightening device (<NUM>), rotatably disposed on the tourniquet main body (<NUM>), and comprising at least three pillar-shaped structures, wherein the at least three pillar-shaped structures respectively extend outward from a rotation center of the first tightening device (<NUM>), and there is a first width (W1) between any two adjacent pillar-shaped structures; and
a fixing element (<NUM>), disposed adjacent to the first tightening device (<NUM>), and disposed on the tourniquet main body (<NUM>),
wherein the first width (W1) is wider than a second width of the fixing element (<NUM>) to avoid interference between the first tightening device (<NUM>) and the fixing element (<NUM>), a distance from the rotation center of the first tightening device (<NUM>) to the fixing element (<NUM>) is less than an extension length of any one of the at least three pillar-shaped structures from the rotation center; wherein the tourniquet with a multi-angle tightening device is characterized in that
the fixing element (<NUM>) comprises at least one limit unit (<NUM>), a first curved portion (<NUM>), and a second curved portion (<NUM>); the at least one limit unit (<NUM>) is disposed between the first curved portion (<NUM>) and the second curved portion (<NUM>), the first curved portion (<NUM>) forms a first groove, and the second curved portion (<NUM>) forms a second groove, and concave directions of the first groove and the second groove are opposite; and
the length of the pillar-shaped structures of the first tightening device (<NUM>) extends to the fixing element (<NUM>) to be positioned against one of the first curved portion (<NUM>) or the second curved portion (<NUM>) so that the fixing element (<NUM>) can fix the position of the first tightening device (<NUM>).