CN113100870A

CN113100870A - Medical tourniquet

Info

Publication number: CN113100870A
Application number: CN202110541022.9A
Authority: CN
Inventors: 黄枫铭
Original assignee: Zhejiang Chinese Medicine University ZCMU
Current assignee: Zhejiang Chinese Medicine University ZCMU
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-07-13

Abstract

The invention provides a medical tourniquet and relates to the field of medical instruments. The method comprises the following steps: the inner part of the band body is provided with a memory metal elastic sheet which has an arch structure, and the band body is provided with a hemostatic part; it does not require continuous manual compression to stop bleeding.

Description

Medical tourniquet

Technical Field

The invention relates to the field of medical instruments, in particular to a medical tourniquet.

Background

The medical institution transfuses, draws blood and transfuses blood in the conventional treatment and rescue, and the cotton swab is pressed on the affected part for one-time use when stopping bleeding; or applied to emergency hemostasis when limb bleeding and bleeding caused by field snake and insect bites.

The operation method requires that the user always presses the affected part with hands, which is troublesome and laborious.

Disclosure of Invention

The invention aims to provide a medical tourniquet which does not need continuous pressing by hands to stop bleeding.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a medical tourniquet, including the area body, take the inside memory metal shell fragment that is of area body, memory metal shell fragment has domes, and the area body is provided with hemostasis portion.

In some embodiments of the present invention, a temperature control portion is disposed on a contact surface of the hemostatic portion and the band, and the temperature control portion contains a TDD hydrophilic polymer gel, a cooling agent, and water.

In some embodiments of the present invention, the hemostatic section includes a first cotton layer, a first sponge layer, a second cotton layer, a second sponge layer, and a third cotton layer stacked in sequence.

In some embodiments of the present invention, the first sponge layer and the second sponge layer have a first sponge layer and a second sponge layer, and the first sponge layer and the second sponge layer have a second sponge layer and a third sponge layer, wherein the first sponge layer and the second sponge layer have a first sponge layer and a second sponge layer.

In some embodiments of the present invention, the medicine storage bag is a film made of sodium alginate, and the liquid medicine is filled in the film.

In some embodiments of the present invention, the first cotton layer and the third cotton layer have thrombin on their facing surfaces.

In some embodiments of the present invention, pseudo-ginseng is laid between the first cotton layer and the first sponge layer, madder is laid between the first sponge layer and the second cotton layer, cattail pollen is laid between the second cotton layer and the second sponge layer, and ophicalcite is laid between the second sponge layer and the third cotton layer.

In some embodiments of the present invention, a magnetic member is disposed at an end of the strap body.

In some embodiments of the present invention, the closed end of the bag is connected to the side of the strap, and the open end of the bag is provided with a drawstring.

In some embodiments of the present invention, the bag body is an elastic bag body.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the embodiment of the invention provides a medical tourniquet which comprises a strap body, wherein a memory metal elastic sheet is arranged inside the strap body, the memory metal elastic sheet is of an arch structure, and the strap body is provided with a hemostasis part. In daily life, a wound part needs to be pressed after arterial or intravenous injection, the wall of a blood vessel is damaged due to needle tube puncture, and if the blood is not pressed afterwards, blood may seep from the blood vessel puncture part to the tissues around the blood vessel to cause subcutaneous blood stasis. Therefore, the compression should be performed for more than one minute later, which is a slightly longer time than the normal prothrombin time, to prevent subcutaneous congestion. In the prior art, pressing an injection part by using a cotton swab is the most common hemostasis operation, and although a rubber band is also used for hemostasis, the cotton swab is mainly used for emergency treatment of limb hemorrhage. When the belt body needs to be used, the belt body is placed above the limb to be worn, the belt body is linear at the moment, downward pressure is applied to the belt body, the memory metal elastic sheet is bent, the arch structure with the supporting function is made to be invalid, the memory metal elastic sheet is restored to a curled state by utilizing the characteristics of the memory metal elastic sheet, the belt body is wound on the limb, a user can adjust the tightness degree of the belt body on the limb by adjusting the end part of the belt body, the user does not need to use the other hand to continuously press the injection part at the moment, and convenience is brought to the user. After use, the hemostatic sections are discarded and replaced. In the early stage of preparation of injection, a user can firstly wind the belt body on the hand just like a bracelet; in addition, the coiled belt body also occupies less space in the bag, so that the portable belt has the advantage of convenience in carrying. The invention has simple structure, reasonable design, low cost and recycling use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a general schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic illustration of a belt body according to an embodiment of the present invention;

FIG. 3 is a schematic view of a hemostatic section according to an embodiment of the invention.

Icon: 100-memory metal elastic sheet, 101-arch structure, 102-magnetic suction piece, 110-hemostasis part, 111-first cotton layer, 112-first sponge layer, 113-second cotton layer, 114-second sponge layer, 115-third cotton layer, 200-bag body and 201-drawstring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, the term "plurality" if present means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1-3, embodiments of the present invention are shown.

As shown in fig. 1 and 2, an embodiment of the present application provides a medical tourniquet, which includes a strap body, a memory metal spring 100 is disposed inside the strap body, the memory metal spring 100 has an arch structure 101, and the strap body is provided with a hemostasis portion 110.

In the embodiment, the memory metal dome 100 is wrapped with a layer of plastic, which is intended to prevent and prevent the sharpness of the memory metal dome 100 from cutting the belt body. The strap body is connected with the sides of the memory metal elastic sheet 100 through glue, and the memory metal elastic sheet 100 can be straightened and bent, so that the memory metal elastic sheet 100 is prevented from shrinking inside the strap body during bending. The belt body can be made of anti-allergic rubber or textile cloth. In consideration of the characteristic of recycling use of the present invention, the present invention must have convenience for cleaning, so the belt body in this embodiment is preferably made of anti-allergic rubber, if contaminated with stains such as blood, the stained part is wiped with alcohol, and a good cleaning feedback can be obtained, and the woven cloth is easily penetrated by stains, but is not limited in other embodiments.

In this embodiment, the hemostatic section 110 and the band body must be detachable, so that the used hemostatic section 110 must be discarded for the next use after the use, thereby preventing cross infection and saving the cost of frequent band body replacement. The detachable manner is not limited to: the two pieces are adhered to each other through magic tapes; or a notch or window for installing the hemostatic section 110 is provided on the band body.

In daily life, a wound part needs to be pressed after arterial or intravenous injection, the wall of a blood vessel is damaged due to needle tube puncture, and if the blood is not pressed afterwards, blood may seep from the blood vessel puncture part to the tissues around the blood vessel to cause subcutaneous blood stasis. Therefore, the compression should be performed for more than one minute later, which is a slightly longer time than the normal prothrombin time, to prevent subcutaneous congestion. In the prior art, pressing an injection part by using a cotton swab is the most common hemostasis operation, and although a rubber band is also used for hemostasis, the cotton swab is mainly used for emergency treatment of limb hemorrhage.

When the belt body needs to be used, the belt body is placed above the limb needing to be worn, the belt body is linear at the moment, downward pressure is applied to the belt body, the memory metal elastic sheet 100 is bent, the arch structure 101 playing a supporting role is made to be invalid, the memory metal elastic sheet 100 is restored to a curled state by utilizing the characteristics of the memory metal elastic sheet, the belt body is wound on the limb, a user can adjust the tightness degree of the belt body on the limb by adjusting the end part of the belt body, the user does not need to continuously press an injection part by using the other hand at the moment, and convenience is provided for the user. After use, the hemostatic section 110 is discarded and replaced. In the early stage of preparation of injection, a user can firstly wind the belt body on the hand just like a bracelet; in addition, the belt body in a curling state also occupies a small space when being put into the bag, so the portable belt has the advantage of convenient carrying. The invention has simple structure, reasonable design, low cost and recycling use.

In some embodiments of the present invention, the contact surface of the hemostatic section 110 and the band body is provided with a temperature control section, and the temperature control section contains TDD hydrophilic polymer gel, a cooling agent and water.

In this embodiment, the cooling agent is preferably a natural plant, such as peppermint. The cooling agent is dissolved in the TDD hydrophilic macromolecule hydrophilic gel by virtue of the high moisture retention advantage of the gel, has a better skin permeation effect, and has a heat-removing effect together with the heat absorption of water vaporization, so that the local temperature is reduced, and the TDD hydrophilic macromolecule hydrophilic gel can be recycled for multiple times. Cold compress is generally used to help the local tissues vasoconstrict, reducing local swelling. And (6) hot compress. The ice compress can be clinically used for acute injury, such as sprain or severe local hemorrhage and swelling, and the blood vessel is contracted by cold compress to reduce local hemorrhage and swelling. Therefore, the invention is not only suitable for hemostasis, but also can be worn on the affected part for other purposes.

As shown in fig. 3, in some embodiments of the present invention, the hemostatic section 110 includes a first cotton layer 111, a first sponge layer 112, a second cotton layer 113, a second sponge layer 114, and a third cotton layer 115, which are sequentially stacked, wherein a medicine storage bag is disposed on a surface where the first cotton layer 111 and the first sponge layer 112 are attached, and a medicine storage bag is disposed on a surface where the second sponge layer 114 and the third cotton layer 115 are attached, and the medicine storage bag contains liquid medicine.

In this embodiment, the first cotton layer 111, the second cotton layer 113 and the third cotton layer 115 are the same, the first cotton layer 111 and the third cotton layer 115 are opposite sides of the hemostatic section 110, and any one of the first cotton layer 111 and the third cotton layer 115 may contact with the skin or the belt; the first and second sponge layers 112, 114 are the same substance. When the user breaks the medicine storage bag, the liquid medicine of the medicine storage bag permeates the whole hemostatic part 110 layer by layer, and the permeation is avoided due to the arrangement of the plurality of cotton layers. The first sponge layer 112 and the second sponge layer 114 both have good water absorbability, and absorb the whole amount of liquid medicine therein, and the user lightly presses the hemostatic portion 110, so that the liquid medicine of the first sponge layer 112 and the second sponge layer 114 permeates into the affected part. The liquid medicament in the medicament storage bag can be iodophor or other medicaments for promoting wound healing.

In some embodiments of the invention, the drug reservoir is a membrane made of sodium alginate, and the liquid drug is infused into the membrane.

In this example, dry or wet seaweed (algae) was crushed, washed with water to remove impurities, extracted with strong alkaline water, clarified to obtain a crude alginate solution, precipitated with calcium chloride to obtain a colored calcium alginate, decolorized, deodorized, treated with acid to remove soluble impurities to obtain a precipitate of alginic acid, reacted with sodium carbonate to obtain sodium alginate, dried, pulverized, and sieved to obtain sodium alginate powder. The sodium alginate is a polymer of beta anhydrous dextro-sodium mannuronate. The sodium alginate is white or light yellow powder, and almost odorless and tasteless. Sodium alginate is soluble in water, and insoluble in organic solvent such as ethanol, diethyl ether, chloroform, etc. Sodium alginate is nontoxic, LD50 is more than 5000mg/kg, and can be made into film: firstly, sodium alginate solution is evaporated and dehydrated to prepare a strippable film; squeezing the solution soluble in sodium alginate into water-compatible non-solvent such as acetone or isopropanol to obtain film. The liquid medicine is filled into the film and then processed and sealed, so that the liquid medicine forms a colloid state, does not seep or shrink, is not in direct contact with air, and prolongs the storage time.

In some embodiments of the invention, the first cotton layer 111 and the third cotton layer 115 both have thrombin.

In this embodiment, the thrombin directly contacts with the wound surface to perform the blood stopping function, and any one of the first cotton layer 111 and the third cotton layer 115 is a layer that may directly contact with the skin, so that the user does not need to distinguish the front side from the back side in order to use the hemostatic section 110, and the thrombin is disposed on both the first cotton layer 111 and the third cotton layer 115. Blood coagulation factors are various protein components involved in the blood coagulation process, and lack of blood coagulation factors causes blood coagulation dysfunction and makes it difficult to stop bleeding when bleeding symptoms occur. The physiological role of thrombin is to be activated when a blood vessel bleeds, to bind platelets together and to fill leaks in the blood vessel, a process known as coagulation. Thrombin directly acts on the last step of blood coagulation process to promote the conversion of soluble fibrinogen in blood plasma into insoluble fibrin, thus achieving the purpose of quick-acting hemostasis, promoting the mitosis of epithelial cells and accelerating wound healing, and being a quick-acting local hemostatic. Therefore, the thrombin is arranged to assist users with blood coagulation dysfunction, the application range of the invention is expanded, and different trauma people are considered.

In some embodiments of the present invention, notoginseng is laid between the first cotton layer 111 and the first sponge layer 112, madder is laid between the first sponge layer 112 and the second cotton layer 113, cattail pollen is laid between the second cotton layer 113 and the second sponge layer 114, and ophicalcite is laid between the second sponge layer 114 and the third cotton layer 115.

Wherein the medicinal properties of the raw materials are as follows:

notoginseng radix, the dry root of Panax notoginseng of Araliaceae, is recorded in compendium of materia medica to "stop bleeding, dispel blood and relieve pain, incised wound, traumatic injuries, sores on rolling stick, and bleeding, and it is chewed or not mixed with it, and its blood stops. It is also known as hematemesis, epistaxis, bloody dysentery, metrorrhagia, menorrhagia, puerperal lochiorrhagia, blood-moving pain, red eye, carbuncle, swelling, and snake bite; ben Cao Shi Xin (New materia Medica) dispels blood and relieves pain. It is indicated for hematemesis and epistaxis. Dysentery with bloody stool and metrorrhagia. Blood-shot eyes, abscess and swelling. Has effects of removing blood stasis, stopping bleeding, promoting blood circulation, and relieving pain, and can be used for treating hemorrhage and swelling and pain due to blood stasis.

Radix Rubiae, root and rhizome of Rubia cordifolia of Rubiaceae, collecting in spring and autumn, removing silt, and sun drying. The main treatment functions are as follows: cooling blood, promoting blood circulation, removing blood stasis, and dredging channels, and can be used for stopping bleeding without blood stasis;

pollen Typhae is dried pollen of Typha angustifolia, Typha orientalis or plants of the same genus of Typhaceae. Collecting yellow male inflorescence at the upper part of the cattail pollen in summer, sun-drying, rolling, sieving pollen, shearing male flowers, and sun-drying to obtain pollen with male flowers, namely cattail pollen. Ben Cao gang mu (compendium of materia Medica) "Cool blood and activate blood, relieve pain of heart and abdomen"; in this Jing, the heart, abdomen and bladder have the functions of cold and heat, promoting urination, stopping bleeding and removing blood stasis. Taking for a long time can lighten the body, benefit strength and prolong the life of the immortal spirit. Can be used for treating traumatic hemorrhage, traumatic injury with swelling and pain, and stranguria with blood with pain.

Ophicalcite, the metamorphic rock, serpentine marble, are mined and the miscellaneous stones and silt are removed. The product is a granular and dense block aggregate, and is in irregular block shape, with edges and corners, but not sharp. White or light grey white, with dot or strip serpentine sandwiched between them, light green or light yellow, known as "halo", having a starry luster when observed by light. Heavy, hard and not easy to break. Light smell and bland taste. Ben Cao gang mu (compendium of materia Medica) for all kinds of blood loss and eye drop and nebula. The main treatment is traumatic hemorrhage.

Experimental group 1:

6 g of pseudo-ginseng, 10 g of ophicalcitum, 6 g of cattail pollen and 5 g of madder are taken, the raw materials are cleaned, pulverized and mixed, and ointment is prepared;

the usage and dosage are as follows: the ointment is applied to the wound.

Experimental group 2:

taking 12 g of pseudo-ginseng, 11 g of ophicalcitum, 13 g of cattail pollen and 12 g of madder. Cleaning the above materials, pulverizing, mixing, and making into unguent.

The usage and dosage are as follows: the ointment is applied to the wound.

Experimental group 3:

the preparation method comprises the steps of cleaning 9 g of pseudo-ginseng, 11 g of ophicalcitum, 11 g of cattail pollen and 10 g of madder, pulverizing and mixing the raw materials, and preparing the mixture into paste.

The usage and dosage are as follows: the ointment is applied to the wound.

Clinical experiments are as follows:

1. experimental strains: staphylococcus aureus, pseudomonas aeruginosa and escherichia coli.

2. And (3) strain culture medium: nutrient agar medium and nutrient broth medium.

3. The bacteriostasis experiment comprises an experiment group and a control group, wherein the experiment group is a mixed hemostatic and bactericidal medicine of pseudo-ginseng, madder, cattail pollen and ophicalcite, and the control group adopts a sodium chlorate disinfectant.

1. The specific experimental steps are as follows:

(1) preparing a bacterial liquid: respectively inoculating the two groups of strains on two agar culture media, culturing at 37 ℃ for 24 hours, respectively selecting typical colonies from the two groups of strains, respectively inoculating the typical colonies into two fresh nutrient broth culture media, and culturing at the same temperature for 18 hours for later use;

(2) respectively taking 50ml of the sterilization medicine and 50ml of the sodium chlorate disinfectant, respectively placing the sterilization medicine and the sodium chlorate disinfectant into dilution containers, respectively diluting the two dilution solutions by 10 times, respectively placing the two dilution solutions into two containers, and placing the two containers under aseptic conditions for later use;

(3) respectively diluting the experimental strains cultured in the nutrient broth in the step (1) for 18 hours by 50 times with sterile nutrient broth, respectively packaging each strain in two culture dishes, and respectively marking a control group and an experimental group;

(4) and (3) dripping the diluted solution of the disinfectant obtained in the step (2) into a culture dish of an experimental group, and dripping the diluted solution of the sodium chlorate disinfectant into a culture dish of a control group.

5. Experimental observation and measurement:

bacterial strain	Experimental group	Control group	Residual area of bacterial colony
				Staphylococcus aureus	1％	15％	-
Pseudomonas aeruginosa	2％	27％	-
				Escherichia coli	0.5％	26％	-

TABLE 1

The above experiment was observed and the residual area of the strain was measured, and the specific results are shown in table 1.

6. After the measurement is finished, the culture dishes are placed under the aseptic condition and are kept stand for three days, tracking and observation find that the colonies of the control group continue to propagate, and the colonies of the experimental group have no change.

7. The experimental results are as follows: the bactericidal capacity of the experimental group is far greater than that of the control group, and the continuous propagation of strains can be inhibited.

In some embodiments of the invention, the ends of the strap are provided with magnetically attractive elements 102.

In this embodiment, the magnetic attraction piece 102 is a magnet and can be attracted to the memory metal elastic piece 100, when the belt body is wound on the limb, the user can adjust the degree of tightness of the winding by attracting the magnetic attraction piece 102 and the memory metal elastic piece 100, and the use is flexible.

In some embodiments of the invention, the closed end of the pouch 200 is attached to the side of the strap, and the open end of the pouch 200 has a drawstring 201.

In this embodiment, the bag body 200 is disposed at one end of the belt body having the magnetic member 102, before use, the belt body is stored in the bag body 200, the user stretches the belt body from the bag, and then the bag body 200 is turned over; after the use, the belt body is bent and rolled up, then the bag body 200 is turned over, so that the belt body is contained in the bag body 200, and finally the drawstring 201 is tightened. The sanitary standard of the belt body is improved by the bag body 200, and the belt body is prevented from being interfered by other pollutants and is prevented from being damaged by certain hard objects in the bag when the belt body is directly held by hands or placed in the bag. In addition, the portable electric heating device is more convenient for users to carry.

In some embodiments of the present invention, the pouch 200 is an elastic pouch 200.

In summary, the invention has at least the following advantages or benefits:

the embodiment of the invention provides a medical tourniquet, which comprises a strap body, wherein a memory metal elastic sheet 100 is arranged inside the strap body, the memory metal elastic sheet 100 is provided with an arch structure 101, and the strap body is provided with a hemostasis part 110. In daily life, a wound part needs to be pressed after arterial or intravenous injection, the wall of a blood vessel is damaged due to needle tube puncture, and if the blood is not pressed afterwards, blood may seep from the blood vessel puncture part to the tissues around the blood vessel to cause subcutaneous blood stasis. Therefore, the compression should be performed for more than one minute later, which is a slightly longer time than the normal prothrombin time, to prevent subcutaneous congestion. In the prior art, pressing an injection part by using a cotton swab is the most common hemostasis operation, and although a rubber band is also used for hemostasis, the cotton swab is mainly used for emergency treatment of limb hemorrhage. When the belt body needs to be used, the belt body is placed above a limb needing to be worn, downward pressure is applied to the belt body, the memory metal elastic sheet 100 is bent, and therefore the arch structure 101 with the supporting function is made to be invalid, the memory metal elastic sheet 100 is restored to the curled state by the aid of characteristics of the memory metal elastic sheet, the belt body is wound on the limb, a user can adjust the tightness of the belt body on the limb by adjusting the end portion of the belt body, at the moment, the user does not need to continuously press an injection part with the other hand, and convenience is brought to the user. After use, the hemostatic section 110 is discarded and replaced. At the preparation earlier stage of injection, the user can be earlier with the area body winding on hand just as bracelet is general, consequently has convenient to carry's advantage. The invention has simple structure, reasonable design, low cost and recycling use.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The medical tourniquet is characterized by comprising a strap body, wherein a memory metal elastic piece is arranged inside the strap body, the memory metal elastic piece is of an arch structure, and a tourniquet portion is arranged on the strap body.

2. The medical tourniquet according to claim 1, wherein a temperature control part is disposed on a contact surface of the tourniquet part and the band body, and the temperature control part contains a TDD hydrophilic polymer gel, a cooling agent and water.

3. The medical tourniquet according to claim 1, wherein the tourniquet comprises a first cotton layer, a first sponge layer, a second cotton layer, a second sponge layer and a third cotton layer stacked in sequence.

4. The medical tourniquet according to claim 3, wherein a drug storage bag is arranged on the surface of the first sponge layer which is attached to the first sponge layer, and a drug storage bag is arranged on the surface of the second sponge layer which is attached to the third sponge layer, and the drug storage bag contains liquid drug.

5. The medical tourniquet according to claim 4, wherein the drug storage pouch is a thin film made of sodium alginate, and the liquid drug is infused in the thin film.

6. The medical tourniquet of claim 3 wherein the abutting faces of the first and third cotton layers each have thrombin.

7. The medical tourniquet according to claim 3, wherein pseudo-ginseng is laid between the first cotton layer and the first sponge layer, madder is laid between the first cotton layer and the second cotton layer, cattail pollen is laid between the second cotton layer and the second sponge layer, and ophicalcite is laid between the second sponge layer and the third cotton layer.

8. The medical tourniquet according to any of claims 1 to 7, wherein the end of the band body is provided with a magnetically attractive element.

9. The medical tourniquet according to claim 1, further comprising a pouch body, wherein the closed end of the pouch body is connected to the side of the strap body, and the open end of the pouch body is provided with a drawstring.

10. The medical tourniquet of claim 9 wherein the pouch is an elastic pouch.