Method of forming a tourniquet for finger or toe tourniqueting and tourniquet thereof

Abstract

This invention discloses a method for forming a tourniquet for hemostasis of fingers or toes, and the tourniquet thereof. The method includes: forming a main air bladder pre-filled with gas; forming an auxiliary air bladder located on one side of the main air bladder, pre-filled with gas that can be squeezed into the inner cavity of the main air bladder, and whose inner walls can be fixedly connected together after the gas is squeezed out; forming a fixing band on the outside of the auxiliary air bladder and the main air bladder, respectively fixedly connected to the outer surfaces of the two air bladders and respectively provided with connectors at both ends; when stopping bleeding of fingers or toes, fixing the fixing band and the two air bladders inside to the site of hemostasis of the finger or toe by a pair of connectors of the fixing band, squeezing the auxiliary air bladder to allow the pre-filled gas inside to enter the main air bladder and mix with the pre-filled gas inside the main air bladder to apply pressure to the site of hemostasis. The tourniquet of this invention has a simple structure, is easy to use, can accurately locate and stop bleeding at the site of hemostasis for patients undergoing finger or toe surgery, is not easily displaced, provides rapid and effective hemostasis, has low manufacturing cost, and is easy to promote.

Description

Technical Field

[0001] This invention relates to the field of medical technology, and more particularly to a method for forming a tourniquet for stopping bleeding in fingers or toes, and the tourniquet thereof. Background Technology

[0002] The number of patients with malignant melanoma, nail matrix tumor, nail pigmented nevus, and ingrown toenail of the fingers and toes is increasing year by year. Finger and toe injuries are also common in daily life. Because the fingers and toes have rich blood supply, many capillaries, and a lot of nerve distribution, they are sensitive to pain. Tourniquets are often used in dermatological surgery and orthopedic limb surgery for emergency treatment or first aid, in order to reduce bleeding, provide a clear surgical field, and prevent the spread of malignant cells.

[0003] However, orthopedics and dermatology departments do not have dedicated tourniquets for surgeries on distal limbs such as fingers and toes. To stop bleeding, these departments often use rubber tourniquets. However, rubber tourniquets are tied far from the surgical site and have a wide range of effect, which can easily cause adverse effects on other normal distal limbs, resulting in poor hemostasis, difficulty in surgical procedures, and discomfort for patients.

[0004] In addition, the operating room also uses finger cot tourniquets for hemostasis during finger surgery. For example, the tourniquet disclosed in Chinese Patent No. CN202982117U, entitled "Finger Cot Hemostatic Tourniquet," is composed of a finger cot. The finger cot has a sheath-like structure, is hollow, open at the base of the finger, and has a circular hole at the tip for inserting the finger. Although this finger cot is simple to use and can compress blood vessels in the finger to stop bleeding, it can easily cause patient discomfort during use, and excessive pressure can lead to necrosis at the wearing site. Furthermore, it is easily forgotten after surgery, causing adverse events. Alternatively, the tourniquet disclosed in Chinese Patent No. CN 210727818U, entitled "Annular Airbag Type Finger Base Tourniquet," can also be used for hemostasis. It includes an outer ring, an inner ring, and a hand-operated inflatable ball. An airbag is located between the outer and inner rings, and the airbag and the hand-operated inflatable ball are connected by an inflation tube. This tourniquet can be used for pressure hemostasis at the base of the finger, but the balloon needs to be inflated by squeezing the balloon by hand, which is complicated and inconvenient to use during surgery. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems and provide a method for forming a tourniquet for stopping bleeding in fingers or toes, as well as the tourniquet itself. The tourniquet has a simple structure, is easy to use, can accurately locate and stop bleeding at the site of surgery in patients with fingers or toes, is not easily displaced, stops bleeding quickly and effectively, has low manufacturing cost, and can be used in various places where bleeding control of fingers or toes is required, such as orthopedics, dermatology, operating rooms, and homes, making it easy to promote.

[0006] To achieve the above-mentioned objectives of the present invention, one aspect of the present invention provides a method for forming a tourniquet for stopping bleeding in fingers or toes, comprising:

[0007] This forms a main air bladder pre-filled with gas.

[0008] An auxiliary airbag is formed on one side of the main airbag, pre-filled with gas that can be squeezed into the inner cavity of the main airbag, and whose inner walls can be fixedly connected together after the gas is squeezed out.

[0009] A fixing strap is formed on the outside of the auxiliary airbag and the main airbag, with an inner wall that is fixedly connected to the outer surfaces of both airbags and a connector at each end.

[0010] When it is necessary to stop bleeding on a finger or toe, the fixing strap and the two airbags inside are fixed to the bleeding site of the finger or toe by a pair of connectors of the fixing strap. The auxiliary airbag is squeezed to allow the pre-filled gas inside to enter the main airbag and mix with the pre-filled gas in the main airbag to form pressurized gas to apply pressure to the bleeding site for hemostasis.

[0011] Preferably, when the fixing strap and the two internal airbags are fixed to the bleeding site of the finger or toe by a pair of connectors of the fixing strap, the main airbag is attached to the bleeding site of the finger or toe, while the auxiliary airbag is located on the side of the bleeding site.

[0012] Preferably, the main airbag and the auxiliary airbag are connected by a connecting airbag.

[0013] Preferably, after squeezing the auxiliary airbag to allow the pre-inflated gas inside to enter the main airbag and mix with the pre-inflated gas inside the main airbag to form pressurized gas for applying pressure to the hemostatic site, the method further includes: folding the auxiliary airbag outward relative to the main airbag so that the folded auxiliary airbag is fitted outside the main airbag and applies pressure to the hemostatic site a second time for hemostasis.

[0014] Furthermore, the present invention also provides a tourniquet formed by the method described above, comprising: a main air bladder pre-filled with gas; an auxiliary air bladder located on one side of the main air bladder, pre-filled with gas that can be squeezed into the inner cavity of the main air bladder, and whose inner walls can be fixedly connected together after the gas is squeezed out; and a fixing strap disposed outside the auxiliary air bladder and the main air bladder, the inner walls of which are fixedly connected to the outer surfaces of the two respectively, and the two ends of which are respectively provided with connectors; wherein, when it is necessary to stop bleeding on a finger or toe, the fixing strap and the two air bladders inside are fixed to the bleeding site of the finger or toe by a pair of connectors of the fixing strap, and the auxiliary air bladder is squeezed to allow the pre-filled gas inside to enter the main air bladder and mix with the pre-filled gas inside the main air bladder to form pressurized gas to apply pressure to the bleeding site for hemostasis.

[0015] Preferably, the inner wall of the auxiliary airbag is provided with an adhesive layer.

[0016] Preferably, the inner wall of the main airbag is smooth.

[0017] Preferably, a connecting airbag is provided between the main airbag and the auxiliary airbag to connect their inner cavities.

[0018] Preferably, the portion of the fixing strap located between the main airbag and the auxiliary airbag is provided with a folding line to facilitate the folding of the auxiliary airbag relative to the main airbag.

[0019] Preferably, the back of the fixing strap is provided with a folding adhesive strip for fixing the backs of the fixing straps at corresponding positions of the two airbags together after the auxiliary airbag is folded relative to the main airbag.

[0020] Preferably, the fixing strap is a latex strap made of latex.

[0021] Compared with the prior art, the method for forming a tourniquet for stopping bleeding in fingers or toes and the tourniquet of the present invention have the following advantages:

[0022] 1. The tourniquet formed by the method of the present invention has a simple structure and is easy to use. It can accurately locate and stop bleeding at the bleeding site of patients undergoing finger or toe surgery. It is not easy to shift, stops bleeding quickly and effectively, and has low manufacturing cost. It can be used in various places where bleeding of fingers or toes is required, such as orthopedics, dermatology, operating rooms, and homes, and is easy to promote.

[0023] 2. The tourniquet of the present invention has a main air bladder and an auxiliary air bladder, each pre-filled with a certain amount of gas. By squeezing the auxiliary air bladder, the gas inside can enter the main air bladder to form pressurized gas. Thus, the pressure of the pressurized gas can be determined according to the actual situation of the site to be hemostatic. The operation is simple and convenient.

[0024] 3. In this invention, the tourniquet allows the inner walls of the auxiliary airbag to adhere together after the gas inside is squeezed out, effectively preventing the backflow of the squeezed-out gas. This ensures that the pressure of the main airbag on the hemostatic site remains constant, guaranteeing the hemostatic effect.

[0025] 4. The tourniquet of this invention, after the gas inside the auxiliary airbag is squeezed out, can be folded together with the fixing strap at the corresponding position on the outside of the main airbag, thereby applying secondary pressure to the hemostasis site, improving the hemostasis effect and being simple and easy to implement.

[0026] 5. The two ends of the fixing strap of this invention can be detachably connected together by connectors, so that the tightness can be adjusted according to the thickness of the patient's fingers or toes, making it more practical, more comfortable and safer for the patient to use, and with better hemostasis effect.

[0027] The present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is a front view of the tourniquet for stopping bleeding in fingers or toes according to the present invention;

[0029] Figure 2 This is a top view of the tourniquet for stopping bleeding in fingers or toes according to the present invention (with the auxiliary airbag in the state before compression);

[0030] Figure 3 This is a top view of the tourniquet used for stopping bleeding in fingers or toes according to the present invention (with the auxiliary airbag in the compressed state);

[0031] Figure 4 This is a schematic diagram of the auxiliary airbag of the present invention being folded outside the main airbag;

[0032] Figure 5 This is a frontal view of the fingertip side when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is in the pre-compression state;

[0033] Figure 6 This is a frontal view of the nail side when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is in the pre-compression state;

[0034] Figure 7 This is a schematic diagram of the side of the finger when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is in the state before compression;

[0035] Figure 8 This is a frontal view of the fingertip side when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is in a compressed state;

[0036] Figure 9 This is a frontal view of the nail side when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is in a compressed state;

[0037] Figure 10 This is a schematic diagram of the side of the finger when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is in a compressed state;

[0038] Figure 11 This is a frontal view of the fingertip side when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is folded outside the main airbag;

[0039] Figure 12 This is a frontal view of the nail side when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is folded outside the main airbag;

[0040] Figure 13 This is a schematic diagram of the side of the finger when the tourniquet of the present invention is placed on the finger and the auxiliary airbag is folded outside the main airbag;

[0041] Figure 14 This is a cross-sectional view of the auxiliary airbag of the present invention;

[0042] Figure 15 This is a top view of the fixing strap with a folded adhesive strip on the back side, as described in this invention. Detailed Implementation

[0043] like Figures 1-3 , Figure 15 The figures show different structural diagrams of the tourniquet for fingers and toes according to the present invention. As shown in the figures, the tourniquet for fingers and toes according to the present invention includes: a main air bladder 4 pre-filled with gas; an auxiliary air bladder 2 located on one side of the main air bladder, pre-filled with gas that can be squeezed into the inner cavity of the main air bladder, and whose inner walls can be fixedly connected together after the gas is squeezed out; a fixing band 1 located on one side of the auxiliary air bladder, pre-filled with gas and whose inner cavity is connected to the inner cavity of the auxiliary air bladder; and a fixing band 1 located outside the auxiliary air bladder and the main air bladder, whose inner walls are fixedly connected to the outer surfaces of both, and whose two ends are respectively provided with connecting members. When it is necessary to stop bleeding on the fingers or toes, the fixing band and the two air bladders inside are fixed to the bleeding site of the fingers or toes by a pair of connecting members of the fixing band. The auxiliary air bladder is squeezed to allow the pre-filled gas inside to enter the main air bladder and mix with the pre-filled gas inside the main air bladder. Under the action of the fixing band, a pressurized gas is formed to apply pressure to the bleeding site for hemostasis.

[0044] Specifically, the tourniquet of the present invention includes: a fixing band with a first connector 5 at one end and a second connector 6 at the other end, and auxiliary airbags and main airbags arranged side by side along the width direction of the fixing band on the inner wall of the fixing band.

[0045] The fastening strap is a latex tape made of latex. Two connectors are fixed at both ends by adhesive, sewing, or other methods of existing technology. One connector is located on the inner wall (also known as the front) of the fastening strap, and the other connector is located on the outer wall (also known as the back). The pair of connectors can each use a male hook and loop fastener and a female hook and loop fastener, or other structures that can be detachably connected together in existing technology.

[0046] The auxiliary airbag and the main airbag are elongated, medium-sized airbags extending along the length of the fixing belt. Each airbag is pre-filled with a fixed amount of gas, and their inner cavities are connected by a connecting airbag 3 positioned between them. Both the auxiliary and main airbags are made of existing elastic materials to allow for expansion and contraction; the connecting airbag can also be made of elastic material. The auxiliary and main airbags are externally and fixedly connected to the inner wall of the fixing belt, such as by adhesive or other existing methods.

[0047] When the tourniquet of this invention is placed on the area to be hemostatically controlled on the patient's finger or toe, the main airbag is positioned over the area to be hemostatically controlled, and the auxiliary airbag is located to one side of the main airbag (see [link]). Figures 5-7This allows the main airbag to apply pressure to the area on the patient's finger or toe to stop bleeding after the fixation band has been in place. The auxiliary airbag, depending on the situation, can use its own gas and internal gas to apply pressure to the main airbag once or twice: during pressure application, squeezing the auxiliary airbag forces gas into the main airbag, causing it to inflate and apply pressure to the area to stop bleeding (see...). Figure 3 , Figures 8-10 If further pressurization is required after the first pressurization, the auxiliary cuff can be folded over and placed over the main cuff, allowing the main and auxiliary cuffs to work together to apply secondary pressure to the hemostatic site (see [link]). Figures 11-13 ).

[0048] During the design process, the inner wall of the main airbag is smooth, while the inner wall of the auxiliary airbag is provided with an adhesive layer 8 (such as...). Figure 14 As shown, the adhesive layer can be an adhesive pre-coated onto the inner wall of the auxiliary airbag during manufacturing. When the tourniquet, pre-filled with gas in both the auxiliary and main airbags, is in its unused initial state, the inner walls of the auxiliary airbag near the connecting airbag and / or the connecting airbag are temporarily bonded together, preventing communication between the auxiliary and main airbags. When the tourniquet is to be used, squeezing the auxiliary airbag causes the gas pressure inside to overcome the adhesive force of the bonded portion of the airbag's inner walls, temporarily separating the bonded inner walls and creating a channel for gas from the auxiliary airbag to enter the main airbag. After the gas in the auxiliary airbag is completely compressed into the main airbag, external force can permanently bond the auxiliary airbag and the connecting airbag together. This prevents gas from easily entering the main airbag during storage and transportation, causing the inner wall of the auxiliary airbag to stick together and keeping the main airbag in an inflated state, which could lead to product failure. In addition, it can effectively prevent the gas squeezed into the main airbag from flowing back, ensuring that the pressure of the main airbag on the hemostasis site remains constant and ensuring the hemostasis effect.

[0049] Furthermore, a one-way valve can be installed on the inner wall of the connecting airbag, allowing gas to flow only from the auxiliary airbag towards the main airbag. This further ensures that gas can only flow from the auxiliary airbag to the main airbag, and not from the main airbag back into the auxiliary airbag. This one-way valve can be a medical-grade one-way valve.

[0050] During surgery, the gas in the auxiliary airbag is usually squeezed into the main airbag to achieve hemostasis at the site to be stopped. However, during surgery, there may be situations where the pressure of the corresponding part of the main airbag at the site to be stopped is still insufficient after the gas in the auxiliary airbag enters the main airbag. In this case, further pressure needs to be applied. This invention applies pressure again by folding the auxiliary airbag, whose inner walls are permanently bonded together after the gas has been squeezed out, and the corresponding tourniquet part outside the main airbag.

[0051] To facilitate the smooth folding of the auxiliary airbag to the outside of the main airbag after the gas inside is expelled, this invention may also provide a folding line (not shown in the figure) on the fixing strap located between the main airbag and the auxiliary airbag to allow the auxiliary airbag to fold relative to the main airbag. Furthermore, since the backs of the fixing straps at corresponding positions of the two airbags will contact each other back-to-back after the auxiliary airbag folds relative to the main airbag, to prevent the outer fixing strap and auxiliary airbag from tilting relative to the inner fixing strap and main airbag, thus affecting the pressure application and hemostasis effect, this invention may also provide a folding adhesive 7 (see figure) on the back of the fixing strap for attaching the two together. Figure 15 This device utilizes existing technology to adhere two objects together. Correspondingly, a peelable layer can be added to the outside of the adhesive. In use, the peelable layer is removed to expose the adhesive surface of the adhesive, and the two fixing straps are then glued back-to-back using the adhesive surfaces of the fixing straps at the corresponding positions of the two airbags.

[0052] It should be noted that when fabricating a tourniquet, the dimensions and relative positions of the aforementioned connectors, fold lines, fold adhesive tape, air bladders, and fixation straps can be determined according to the actual situation. The pressure of the pre-inflated gas in the two air bladders can also be predetermined based on the actual situation. Furthermore, during fabrication, the dimensions of the tourniquet and air bladder can be determined according to the different thicknesses of the fingers or toes or the appropriate bandaging area required clinically. For example, tourniquets of different sizes (large, medium, and small) with different air bladders can be designed. When applying a tourniquet for hemostasis, the position of the tourniquet on the finger or toe can be determined as needed based on the location of the area to be hemostatically controlled.

[0053] As can be seen, the tourniquet of this invention, through the main airbag, can precisely locate the site of hemostasis, while the auxiliary airbag can work in conjunction with the main airbag to achieve primary or secondary pressure on the site of hemostasis, making the main airbag less prone to displacement during hemostasis and achieving better hemostatic effect; manual squeezing of the auxiliary airbag can pressurize the main airbag once, eliminating the need for additional pressurizing components, and the gas will not flow back after squeezing, making it simple to operate, easy to learn, time-saving and labor-saving. The entire tourniquet consists of only a few components, with a simple structure, low processing and manufacturing costs, and is easy to promote and apply, solving the problem of needing to pressurize the fingers or toes of patients in orthopedics and dermatology. It addresses the challenges of hemostasis; reduces the incidence of adverse events such as patients forgetting to remove the tourniquet post-surgery; decreases the risk of intraoperative skin bleeding due to improper tourniquet application; reduces the risk of postoperative infection; facilitates medical and nursing procedures, reduces complex workflows and workload, and streamlines the entire surgical process, bringing benefits to patients; during surgery, the connection length of the connectors at both ends of the fixation strap can be adjusted according to the thickness of the patient's fingers or toes, making it more comfortable to use; post-surgery, the tourniquet can be removed directly by opening the connectors (such as Velcro), making it more convenient to use; and the tourniquet can be sterile and disposable, enhancing its practicality.

[0054] In addition to providing the tourniquet described above, this invention also provides a method for forming a tourniquet for stopping bleeding on a finger or toe, comprising:

[0055] This forms a main air bladder pre-filled with gas.

[0056] An auxiliary airbag is formed on one side of the main airbag, pre-filled with gas that can be squeezed into the inner cavity of the main airbag, and whose inner walls can be fixedly connected together after the gas is squeezed out.

[0057] A fixing strap is formed on the outside of the auxiliary airbag and the main airbag, with an inner wall that is fixedly connected to the outer surfaces of both airbags and a connector at each end.

[0058] When it is necessary to stop bleeding on a finger or toe, the fixing strap and the two airbags inside are fixed to the bleeding site of the finger or toe by a pair of connectors of the fixing strap. The auxiliary airbag is squeezed to allow the pre-filled gas inside to enter the main airbag and mix with the pre-filled gas in the main airbag to form pressurized gas to apply pressure to the bleeding site for hemostasis.

[0059] The pair of connectors at both ends of the fixing strap can be male and female hook and loop fasteners. When the male and female hook and loop fasteners are glued together, the fixing strap and the two airbags located on its inner wall can form a ring-shaped hemostatic sleeve that can cover the area to be hemostatically stopped on the fingers or toes.

[0060] When securing the strap and its two internal airbags to the area on the finger or toe where hemostasis is to be achieved via a pair of connectors, the main airbag should be positioned against the area, while the auxiliary airbag should be located beside it (i.e., above or below the main airbag when viewed along the length of the finger or toe; see [reference]). Figures 5-10 The main airbag applies pressure to the site of hemostasis, while the auxiliary airbag provides additional pressure to the main airbag.

[0061] Depending on actual needs, the auxiliary airbag can provide one or two auxiliary pressurization effects to the main airbag.

[0062] When additional pressure is required, place the tourniquet on the finger or toe where hemostasis is to be achieved and align the main airbag with the area to be hemostatic. Then, glue the two ends of the tourniquet together as needed. Squeeze the auxiliary airbag to allow the pre-inflated gas inside to enter the main airbag and mix with the pre-inflated gas inside the main airbag to form pressurized gas. The pressurized gas will inflate the main airbag and apply pressure to the area to be hemostatic.

[0063] When it is necessary to improve the hemostasis effect of pressure application according to the actual situation, after the above-mentioned auxiliary pressure application operation, the part of the auxiliary airbag can be folded outward relative to the part of the main airbag, so that the folded auxiliary airbag and the corresponding fixing strap are fitted outside the main airbag and the corresponding fixing strap, thereby further tightening the main airbag and realizing secondary pressure hemostasis of the hemostasis site by the main airbag.

[0064] Furthermore, when folding the auxiliary airbag, it can be done along the folding line set on the fixing belt between the main airbag and the auxiliary airbag. After the auxiliary airbag is folded relative to the main airbag, the back of the fixing belt is glued together using the folding adhesive on the back of the fixing belt, thereby increasing the pressure hemostasis effect.

[0065] Although the present invention has been described in detail above, the present invention is not limited thereto. Those skilled in the art can make modifications based on the principles of the present invention. Therefore, all modifications made in accordance with the principles of the present invention should be understood as falling within the protection scope of the present invention.

Claims

1. A tourniquet for stopping bleeding in fingers or toes, comprising: The main airbag is pre-filled with gas. An auxiliary airbag located on one side of the main airbag is pre-filled with gas that can be squeezed into the inner cavity of the main airbag, and whose inner walls can be fixedly connected together after the gas is squeezed out. Fixing straps are installed on the inner walls of the auxiliary airbag and the main airbag, respectively, and are fixedly connected to the outer surfaces of the two airbags, with connecting pieces at both ends; The inner wall of the auxiliary airbag is provided with an adhesive layer, and the part of the fixing strap located between the main airbag and the auxiliary airbag is provided with a folding line to facilitate the folding of the auxiliary airbag relative to the main airbag. When it is necessary to stop bleeding on a finger or toe, the fixing strap and the two airbags inside are fixed to the bleeding site of the finger or toe by a pair of connectors of the fixing strap. The auxiliary airbag is squeezed to allow the pre-filled gas inside to enter the main airbag and mix with the pre-filled gas in the main airbag to form pressurized gas to apply pressure to the bleeding site for hemostasis.

2. The tourniquet according to claim 1, wherein the inner wall of the main air bladder is smooth.

3. The tourniquet according to claim 2, wherein a connecting airbag is provided between the main airbag and the auxiliary airbag to connect their inner cavities.

4. The tourniquet according to claim 3, wherein the back of the fixing strap is provided with a folding adhesive for fixing the backs of the fixing straps at corresponding positions of the two airbags together after the auxiliary airbag is folded relative to the main airbag.

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