A hemostatic device

Abstract

The present invention relates to the technical field of medical devices, and in particular to a hemostatic device for expelling blood. The present invention adopts an ingenious design to solve the problem that the existing hemostatic device for expelling blood and stopping bleeding cannot meet the requirements of expelling blood and stopping bleeding during surgery on limbs with open wounds, and cannot timely adjust the pressure required for expelling blood or stopping bleeding according to the individual physical differences of patients. The present invention has the characteristics of simple structure, convenient use, wide application range, adjustable pressure, etc., and can be used for different parts of different patients.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a hemostatic hemostatic device used for expelling blood and stopping bleeding during surgery. Background Art

[0002] The tourniquet is a surgical medical device invented by Petit in 1718 for hemostasis and exsanguination in clinical trauma rescue and surgical operations. It played a very important role in early surgical operations. According to statistics, in surgical operations, especially limb operations, about 70% of operations require hemostasis and / or exsanguination to achieve a nearly bloodless state, in order to reduce the amount of bleeding at the surgical site and ensure a good field of vision in the surgical area. The tourniquets commonly used at present are rubber tubes or cloth belts with adjustable tightness. During their use, there are often problems such as poor hemostasis effect, inability to completely stop bleeding or exsanguination, easy to cause venous blood stasis, blood coagulation in blood vessels, leading to superficial vein or deep vein thrombosis, and difficulty in controlling hemostasis pressure during use, and strong compression and tightening of the tied parts.

[0003] In order to overcome the above-mentioned deficiencies and shortcomings in the use of the tourniquet, the technical personnel in this field have studied and designed several hemostatic and blood-driving devices, which have produced certain positive effects, but none of them completely solves the above-mentioned problems.

[0004] The invention patent "Hemostatic tourniquet" with application number 201310121103.5 discloses a hemostatic hemostatic device, which is composed of a silicone rubber ring, an elastic band and a nylon drawstring, wherein the silicone rubber ring is in the shape of a bracelet, and its elastic force provides the pressure required for hemostatic hemostasis and hemostasis; the elastic band is made of spandex, designed as a stocking with two ends open, and rolled on the silicone rubber ring; the two ends of the nylon drawstring are fixed on the upper end of the elastic band. When in use, the silicone rubber ring is pulled from the distal end of the limb to the proximal end of the limb by using the elastic band and the nylon drawstring. In this pulling process, the purpose of hemostatic hemostasis is achieved, and the elastic force of the silicone rubber ring is relied on to achieve the purpose of hemostatic hemostasis for the limb part below the silicone rubber ring. It has the characteristics of being easy to use and having good hemostatic hemostatic effect. However, due to the fixed inner diameter of the silicone rubber ring, the hemostatic hemostatic pressure generated by it during use is directly related to the diameter of the use part, and cannot be adjusted, making it poorly applicable and unable to meet the use needs of different parts of various people.

[0005] The invention patent "Device for draining blood from a limb" with application number 02824809.0 discloses a blood-dispelling and hemostatic device composed of an elastic contraction ring, an elastic tightening sleeve and an auxiliary bandage, wherein the elastic contraction ring and the elastic tightening sleeve wound on the elastic contraction ring constitute an elastic contraction ring belt device with an inner diameter, and the auxiliary bandage is wound on the elastic contraction ring belt device to play an auxiliary operation role. When in use, as it is gradually unfolded on the limb, its inner diameter increases and applies a pressure higher than the arterial blood pressure of the limb to the limb. The invention has the characteristics of simple structure and good blood-dispelling effect, but because the elastic force and initial length of the elastic contraction ring belt device are fixed, the pressure applied to the body cannot be actively adjusted, and it cannot meet the needs of different people and different use parts. During use, it is necessary to prepare and replace products of various specifications to meet the use needs of different patients, which is inconvenient to use.

[0006] Based on this, the present invention is based on the prior art and after in-depth research and practice, finally designs the hemostatic hemostatic device described in the present invention. The hemostatic hemostatic device is designed to be a tube that can be closed into a ring. It can be directly wrapped around any part of the limb and connected to the interfaces at both ends to form a ring for use as needed, or it can be first connected to form a ring and then inserted from the end of the limb for use. Therefore, compared with the existing hemostatic hemostatic device, it has a wider range of uses, especially when performing surgical hemostatic hemostasis on a limb with an open wound, two hemostatic hemostatic devices of the present invention can be used to achieve hemostatic and hemostatic operations, that is: first use one of the hemostatic hemostatic devices to insert it into the distal end of the limb, move it to the wound site to a suitable position to achieve hemostasis, and then use the other hemostatic hemostatic device to wrap around a suitable position proximal to the open wound and connect the interfaces at both ends to form a ring to achieve hemostasis. The elastic force of the elastic tube of the hemostatic hemostatic device is designed to be adjustable according to needs. Therefore, compared with the existing hemostatic hemostatic devices, the elastic force of the elastic tube can be adjusted in time according to the patient's blood pressure, the circumference of the use site and other parameters to ensure that specific hemostatic and hemostatic pressure can be generated during use. There is no need to prepare and replace products of various specifications, which is more convenient to use. Under the premise of ensuring the hemostatic and hemostatic effect, the safety of the tissue at the use site is protected to the greatest extent and the patient's experience of use is improved. Summary of the invention

[0007] The present invention aims to solve the problem that the existing exsanguination and hemostasis device cannot meet the requirements of exsanguination and hemostasis during surgery on limbs with open wounds, and cannot timely adjust the exsanguination and hemostasis pressure according to the specific conditions of the patient's blood pressure and the size of the use part to meet the use needs of different patients and different parts.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0009] A hemostatic device is characterized in that it is a tube with a certain elasticity, with interfaces at both ends, which can be connected end to end to form a ring, thereby applying pressure to a body to make blood flow out of the body; the hemostatic device comprises an elastic tube, an elastic band and a drawstring; the elastic band and the drawstring are wound on the elastic tube.

[0010] The middle part of the elastic tube of the present invention comprises an elastic inner core, a spring and a sleeve from inside to outside.

[0011] The elastic inner core, spring and both ends of the sleeve described in the present invention are respectively connected to the interfaces at both ends of the elastic tube, and the connection methods include but are not limited to adhesive connection, inlaying, bundling, snapping, hooking and integrated molding.

[0012] The elastic inner core of the present invention is composed of multiple rubber bands and / or springs and / or other elastic materials that are connected to the interfaces and have the same size and length; the material of the spring is one or more of metal, plastic, polymer material, etc., and its two ends are fixedly connected to the interface 1 and the interface 2; the material of the sleeve is one or more of rubber, plastic, polymer material, etc. with a certain elasticity, its inner diameter is equivalent to the outer diameter of the spring, it is sleeved on the outer surface of the spring, and its two ends are fixedly connected to the interface 1 and the interface 2.

[0013] The interfaces at both ends of the elastic tube of the present invention are composed of an interface 1 and an interface 2, and the interface 1 and the interface 2 are connected together by means of buckle or screwing;

[0014] Preferably, the connection between the interface 1 and the interface 2 is preferably a snap connection;

[0015] Preferably, a knob is designed between the interface 1 and the interface 2, which is connected to the interface 1 and the interface 2 by means of snapping and / or screwing and / or hooking; a scale is designed on the knob, and a blade is installed on the knob. When the knob is turned, the blade can rotate inside the elastic tube and cut a corresponding number of rubber bands and / or springs and / or other elastic materials.

[0016] The elastic band of the present invention is a bandage with a certain elastic force; the drawstring roll may be designed with a handle;

[0017] Preferably, the elastic band is impregnated with antibacterial components.

[0018] The hemostatic pressure of the present invention is mainly provided by the elastic force of the elastic inner core (rubber band and / or spring and / or other elastic material). The purpose of using the spring is mainly to support and maintain the shape of the hemostatic hemostatic device when in use (that is, its longitudinal section is always similar to a cylinder), so that it is easy to reach the use part of the limb in a rolling manner, further reducing the friction between the hemostatic hemostatic device and the skin, and using it more labor-saving and convenient; because when the spring is pulled up, a corresponding gap will be generated on its surface, and the gap will affect the integrity of the contact surface between the hemostatic hemostatic device and the skin, which is not conducive to complete hemostatic hemostasis and is easy to pinch the skin when the spring contracts. Therefore, the present invention designs a sleeve on the surface of the spring to solve the above problems.

[0019] The principle of adjusting the pressure of the hemostatic ring according to the size of the use part and the patient's blood pressure is as follows: the elastic force generated by the spring, sleeve and rubber band (or spring and other elastic materials) of the same size and material is proportional to the length they are stretched, that is, F (elastic force) = K (elastic coefficient) × S (stretched length). Therefore, when the circumference of the use part is known to be L and the patient's blood pressure is P, the pressure required for hemostatic hemostasis is F1. In order to make the hemostatic hemostatic device produce a minimum hemostatic hemostasis pressure F not lower than F1, the number of rubber bands n required to be used can be calculated by the following formula:

[0020] (1): F ≥ F1

[0021] (2): F= K1×(L-L1)+K2×(L-L1)+n×K3×(L-L1)

[0022] That is: n = [F - (K1 + K2) × (L - L1)] / K3 × (L - L1)

[0023] Where K1, K2 and K3 are the elastic coefficients of the sleeve, plastic spring and rubber band respectively; L1 is the circumference of the pre-extraction hemostatic device. The number of rubber bands n required can be calculated from (1) and (2) (since n is a positive integer, the n value calculated according to the above formula with decimals is rounded up and not rounded down. For example, when the calculated result is 20.14, the n value is 21, that is, 21 rubber bands are required). Since K1, K2, K3 and L1 are all fixed values, the number of rubber bands n used each time is only related to the patient's blood pressure P (because the pressure acting on the patient's skin is attenuated to a certain extent when it is transmitted to the blood vessels, so F1 is positively correlated with the patient's blood pressure P) and the circumference L of the use site. Therefore, the optimal number of rubber bands to be used can be calculated according to the different blood pressures of different patients and the size of different sites. When using, cut off the excess rubber bands and you can use it and get the appropriate expulsion and hemostasis pressure.

[0024] The beneficial technical effects brought by the present invention are as follows:

[0025] 1. The hemostatic hemostatic device provided by the present invention has a simple structure, is easy to use, has a wide range of applications, and is highly practical, and can meet the needs of patients in different parts of the body and of different types.

[0026] 2. The hemostatic hemostatic device provided by the present invention can adjust the elastic force of the elastic tube used according to the patient's blood pressure and the size of the site of use, so that the hemostatic hemostatic device can produce a pressure not less than the blood pressure of the site of use, which can achieve the effect of hemostasis and hemostasis without exerting excessive pressure on the site of action, which can greatly reduce the pain of the patient and minimize the damage to the organs and tissues at the site of action, avoiding the occurrence of complications. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attached Figure 1 Schematic diagram of the unfolded hemostatic device

[0028] Attached Figure 2 Schematic diagram of a closed hemostatic hemostat

[0029] Attached Figure 3 Schematic diagram of the longitudinal section of the hemostatic device

[0030] Attached Figure 4 Schematic diagram of the combination of interface 1 and knob

[0031] Attached Figure 5 Schematic diagram of interface 1

[0032] Attached Figure 6 Schematic diagram of interface 2

[0033] Attached Figure 7 Knob diagram

[0034] Attached Figure 8 Schematic diagram of the sleeve, spring and rubber band

[0035] Figure numerals: 1 is a drawstring, 2 is an elastic band, 3 is a knob, 4 is an interface 1, 5 is an interface 2, 6 is a clip 1, 7 is a sleeve, 8 is a spring, 9 is a rubber band, 10 is a scale on the knob, 11 is a reading mark point, 12 is an inner hole of the interface 1, 13 is a clip 2, 14 is a blade on the knob clip, 15 is an elastic inner core connecting hook on the interface, 16 is a spring hook on the interface, 17 is a sleeve connecting position on the interface, 18 is a rubber band (spring and other elastic materials) support ring, and 19 is the inner hole of the knob. DETAILED DESCRIPTION

[0036] The following examples further describe the preparation process and beneficial effects of the present invention. They are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the following examples based on the technical essence of the present invention fall within the protection scope of the present invention.

[0037] Example 1

[0038] A kind of hemostatic device, as attached Figure 1 and attached Figure 2 As shown, it comprises an elastic tube, an elastic band (2) and a drawstring (1); the elastic tube has an interface 1 (4) and an interface 2 (5) at both ends, and the interface 2 (5) has a clip 1 (6), and the clip 1 (6) passes through the inner hole (12) of the interface 1 (4) to connect the interface 1 (4) and the interface 2 (5) together, so that the elastic tube is connected end to end to form a ring; the elastic band (2) and the drawstring (1) are wound around the elastic tube with the elastic tube as the axis. As shown in the attached Figure 3 As shown, the middle part of the elastic tube is composed of an elastic inner core, a spring (8) and a sleeve (7) from the inside to the outside, and the two ends of the elastic inner core, the spring (8) and the sleeve (7) are respectively fixedly connected to the interface 1 (4) and the interface 2 (5) at the two ends of the elastic tube, and together constitute the main component of the hemostatic device - the elastic tube. Figure 4 As shown, the clip 2 (13) on the scaled knob (3) passes through the inner hole (12) of the interface 1 (4) to connect the scaled knob (3) and the interface 1 (4) together. A blade (14) is arranged on the top of the clip 2 (13). When the scaled knob (3) is rotated, the blade (14) on the clip 2 (13) rotates accordingly and can cut the corresponding position and number of rubber bands (9), thereby changing the number of rubber bands connected to the interface 1 (4) and the interface 2 (5), thereby achieving the purpose of adjusting the elastic force of the elastic tube.

[0039] The above technical solution is the basic technical solution of the present invention. The basic method of using the hemostatic hemostatic device is: firstly, measuring the patient's blood pressure and the circumference of the use part, and calculating the number of rubber bands (9) required to be used according to the circumference and blood pressure, rotating the knob (3) to the specified scale, and cutting off the excess rubber bands (9). When in use, the clip 1 (6) of the interface 2 (5) is passed through the inner hole (19) of the knob (3) and the inner hole (12) of the interface 1 (4) in sequence, and is connected with the knob (3) and the interface 1 (4) so ​​that the elastic tube is in a ring shape and is inserted into the distal end of the use site (such as the hand or foot) or the hemostatic device is wrapped around a specific part of a limb, and the clip 1 (6) of the interface 2 (5) is passed through the inner hole (19) of the knob (3) and the inner hole (12) of the interface 1 (4) in sequence, and is connected with the knob (3) and the interface 1 (4) so ​​that the hemostatic device is in a ring shape. The drawstring (1) is pulled forcefully, and the hemostatic device is moved to the designated position proximal to the limb in a rolling manner on the limb, thereby achieving the hemostatic and hemostatic functions.

[0040] Example 2

[0041] A kind of hemostatic device, as attached Figure 1 and attached Figure 2As shown, it comprises an elastic tube, an elastic band (2) and a drawstring (1); the elastic tube has an interface 1 (4) and an interface 2 (5) at both ends, and the interface 2 (5) has a clip 1 (6), and the clip 1 (6) passes through the inner hole (12) of the interface 1 (4) to connect the interface 1 (4) and the interface 2 (5) together, so that the elastic tube is connected end to end to form a ring; the elastic band (2) and the drawstring (1) are wound around the elastic tube with the elastic tube as the axis. As shown in the attached Figure 3 As shown, the middle part of the elastic tube is composed of an elastic inner core, a spring (8) and a sleeve (7) from the inside to the outside, and the two ends of the elastic inner core, the spring (8) and the sleeve (7) are respectively fixedly connected to the interface 1 (4) and the interface 2 (5) at the two ends of the elastic tube, and together constitute the main component of the hemostatic device - the elastic tube. Figure 4 As shown, the clip 2 (13) on the scaled knob (3) passes through the inner hole (12) of the interface 1 (4) to connect the scaled knob (3) and the interface 1 (4) together. A blade (14) is arranged on the top of the clip 2 (13). When the scaled knob (3) is rotated, the blade (14) on the clip 2 (13) rotates accordingly and can cut the corresponding position and number of rubber bands (9), thereby changing the number of rubber bands connected to the interface 1 (4) and the interface 2 (5), thereby achieving the purpose of adjusting the elastic force of the elastic tube.

[0042] Preferably, the interface 1 (4) has a reading mark point (11) for marking the position of the rotation of the knob (3).

[0043] Preferably, the elastic inner core is composed of a closed ring-shaped rubber band (9), and the connection method between the elastic inner core and the interface is a hooking method, that is, the rubber band (9) is hooked on the elastic inner core connecting hook (15) on the interface.

[0044] Preferably, the spring (8) is made of stainless steel, and is connected to the interface in a hooking manner, that is, the spring (8) is hooked on a spring hook (16) on the interface.

[0045] Preferably, the connection between the sleeve (7) and the interface is by gluing, that is, the sleeve (7) is glued to the sleeve connection portion (17) on the interface.

[0046] Example 3

[0047] A kind of hemostatic device, as attached Figure 1 and attached Figure 2As shown, it comprises an elastic tube, an elastic band (2) and a pull rope (1); the elastic tube has an interface 1 (4) and an interface 2 (5) at both ends, the inner hole (12) of the interface 1 (4) has an internal thread, and one side of the interface 2 (5) is a threaded shaft, which is screwed into the inner hole (12) of the interface 1 (2), and the interface 1 (4) and the interface 2 (5) are connected together, so that the elastic tube is connected end to end to form a ring; the elastic band (2) and the pull rope (1) are wound on the elastic tube with the elastic tube as the axis. The middle part of the elastic tube is composed of an elastic inner core, a spring (8) and a sleeve (7) from the inside to the outside, and the two ends of the elastic inner core, the spring (8) and the sleeve (7) are respectively fixedly connected to the interface 1 (4) and the interface 2 (5) at both ends of the elastic tube, and together constitute the main component of the hemostatic device - the elastic tube. The clamp 2 (13) on the scaled knob (3) passes through the inner hole (12) of the interface 1 (4) to connect the scaled knob (3) and the interface 1 (4) together. A blade (14) is arranged on the top of the clamp 2 (13). When the scaled knob (3) is rotated, the blade (14) on the clamp 2 (13) rotates accordingly and can cut the corresponding position and number of rubber bands (9), thereby changing the number of rubber bands connected to the interface 1 (4) and the interface 2 (5), thereby achieving the purpose of adjusting the elastic force of the elastic tube.

[0048] Preferably, the elastic inner core is composed of a strip-shaped rubber band (9), and the connection method between the elastic inner core and the interface is a bundling method, that is, the rubber band (9) is tied to the elastic inner core connection hook (15) on the interface.

[0049] Preferably, the spring (8) is made of stainless steel, and is connected to the interface in a snap-fit ​​manner, that is, the spring (8) is snap-fitted onto a spring hook (16) on the interface.

[0050] Preferably, the connection between the sleeve (7) and the interface is a bundling method, that is, the sleeve (7) is bundled at the sleeve connection portion (17) on the interface.

[0051] Preferably, the elastic band (2) is a bandage with a certain elastic force;

[0052] Example 4

[0053] A kind of hemostatic device, as attached Figure 1 and attached Figure 2 As shown, it comprises an elastic tube, an elastic band (2) and a drawstring (1); the elastic tube has an interface 1 (4) and an interface 2 (5) at both ends, and the interface 2 (5) has a clip 1 (6), and the clip 1 (6) passes through the inner hole (12) of the interface 1 (4) to connect the interface 1 (4) and the interface 2 (5) together, so that the elastic tube is connected end to end to form a ring; the elastic band (2) and the drawstring (1) are wound around the elastic tube with the elastic tube as the axis. As shown in the attached Figure 3As shown, the middle part of the elastic tube is composed of an elastic inner core, a spring (8) and a sleeve (7) from the inside to the outside, and the two ends of the elastic inner core, the spring (8) and the sleeve (7) are respectively fixedly connected to the interface 1 (4) and the interface 2 (5) at the two ends of the elastic tube, and together constitute the main component of the hemostatic device - the elastic tube. Figure 4 As shown, the clip 2 (13) on the scaled knob (3) passes through the inner hole (12) of the interface 1 (4) to connect the scaled knob (3) and the interface 1 (4) together. A blade (14) is arranged on the top of the clip 2 (13). When the scaled knob (3) is rotated, the blade (14) on the clip 2 (13) rotates accordingly and can cut the corresponding position and number of rubber bands (9), thereby changing the number of rubber bands connected to the interface 1 (4) and the interface 2 (5), thereby achieving the purpose of adjusting the elastic force of the elastic tube.

[0054] Preferably, the outer diameter of the spring (8) is slightly smaller than the outer diameter of the interface; the inner diameter of the sleeve (7) is equal to the outer diameter of the spring (8), and the outer diameter is equal to the outer diameter of the interface.

[0055] Preferably, a rubber band support ring (18) is provided inside the interface, and the height of the support ring (18) is higher than the elastic inner core connecting hook (15), so that the rubber band (9) forms a certain oblique angle after being connected to the elastic inner core connecting hook (15), and a corresponding space is generated between the rubber band (9) and the interface wall, so as to facilitate cutting of the rubber band (9) when the blade (14) rotates.

[0056] Preferably, the interface 2 (5) is provided with latching teeth or concave-convex points on the surface in contact with the knob (3); when the interface 2 (5) is connected to the knob (3) and the interface 1 (4), the latching teeth or concave-convex points can fix the interface 2 (5) and the knob (3) together, thereby preventing the knob (3) from rotating as the hemostatic device rolls on the limb during use.

[0057] Example 5

[0058] A kind of hemostatic device, as attached Figure 1 and attached Figure 2 As shown, it comprises an elastic tube, an elastic band (2) and a drawstring (1); the elastic tube has an interface 1 (4) and an interface 2 (5) at both ends, and the interface 2 (5) has a clip 1 (6), and the clip 1 (6) passes through the inner hole (12) of the interface 1 (4) to connect the interface 1 (4) and the interface 2 (5) together, so that the elastic tube is connected end to end to form a ring; the elastic band (2) and the drawstring (1) are wound around the elastic tube with the elastic tube as the axis. As shown in the attached Figure 3As shown, the middle part of the elastic tube is composed of an elastic inner core, a spring (8) and a sleeve (7) from the inside to the outside, and the two ends of the elastic inner core, the spring (8) and the sleeve (7) are respectively fixedly connected to the interface 1 (4) and the interface 2 (5) at the two ends of the elastic tube, and together constitute the main component of the hemostatic device - the elastic tube. Figure 4 As shown, the clip 2 (13) on the scaled knob (3) passes through the inner hole (12) of the interface 1 (4) to connect the scaled knob (3) and the interface 1 (4) together. A blade (14) is arranged on the top of the clip 2 (13). When the scaled knob (3) is rotated, the blade (14) on the clip 2 (13) rotates accordingly and can cut the corresponding position and number of rubber bands (9), thereby changing the number of rubber bands connected to the interface 1 (4) and the interface 2 (5), thereby achieving the purpose of adjusting the elastic force of the elastic tube.

[0059] Preferably, the spring is made of plastic (8), and is connected to the interface by integral molding.

[0060] Preferably, the connection between the sleeve (7) and the interface is in a bundling manner, that is, the sleeve (7) is bundled to the rubber hose connection (17) on the interface.

[0061] Preferably, the elastic band (2) is impregnated with an antibacterial component;

[0062] Preferably, the drawstring (1) may be rolled up with a handle.

[0063] Example 6

[0064] A kind of hemostatic device, as attached Figure 1 and attached Figure 2 As shown, it comprises an elastic tube, an elastic band (2) and a drawstring (1); the elastic tube has an interface 1 (4) and an interface 2 (5) at both ends, and the interface 2 (5) has a clip 1 (6), and the clip 1 (6) passes through the inner hole (12) of the interface 1 (4) to connect the interface 1 (4) and the interface 2 (5) together, so that the elastic tube is connected end to end to form a ring; the elastic band (2) and the drawstring (1) are wound around the elastic tube with the elastic tube as the axis. As shown in the attached Figure 3As shown, the middle part of the elastic tube is composed of an elastic inner core, a spring (8) and a sleeve (7) from the inside to the outside, and the two ends of the elastic inner core, the spring (8) and the sleeve (7) are respectively fixedly connected to the interface 1 (4) and the interface 2 (5) at the two ends of the elastic tube, and together constitute the main component of the hemostatic hemostatic device - the elastic tube. When in use, the clip 1 (6) of the interface 2 (5) is passed through the inner hole (12) of the interface 1 (4) and connected to the interface 1 (4), so that the elastic tube is ring-shaped and inserted into the distal end of the use part (such as the hand or foot) or the hemostatic hemostatic device is wrapped around a specific part of the limb, so that the clip 1 (6) of the interface 2 (5) is passed through the inner hole (12) of the interface 1 (4) and connected to the interface 1 (4), so that the hemostatic hemostatic device is ring-shaped, and the pull rope (1) is pulled hard, and the hemostatic hemostatic device moves to the designated position on the limb in a rolling manner toward the proximal end of the limb to achieve the hemostatic and hemostatic functions.

[0065] Preferably, the elastic inner core is composed of a plurality of springs, and the connection between the elastic inner core and the interface is a hooking method, that is, the spring is hooked on the elastic inner core connecting hook (15) on the interface.

[0066] Preferably, the connection between the sleeve (7) and the interface is in a bundling manner, that is, the sleeve (7) is bundled to the rubber hose connection (17) on the interface.

[0067] Preferably, the outer diameter of the spring (8) is slightly smaller than the outer diameter of the interface; the inner diameter of the sleeve (7) is equal to the outer diameter of the spring (8), and the outer diameter is equal to the outer diameter of the interface.

[0068] Preferably, the elastic band (2) is impregnated with an antibacterial component.

[0069] Preferably, the drawstring (1) may be rolled up with a handle.

Claims

1. A hemostatic device, characterized in that: The hemostatic hemostatic device is a tube with a certain elasticity, with interfaces at both ends, which can be connected end to end to form a ring, thereby applying pressure to the body to make blood flow out of the body; the hemostatic hemostatic device comprises an elastic tube, an elastic band and a drawstring; the elastic band and the drawstring are wound on the elastic tube; the middle part of the elastic tube is an elastic core, a spring and a sleeve from the inside to the outside; the two ends of the elastic core, the spring and the sleeve are respectively connected to the interfaces at both ends of the elastic tube; the interfaces at both ends of the elastic tube are composed of interface 1 and interface 2; a knob is designed between interface 1 and interface 2, and the knob is connected to interface 1 and interface 2 respectively by any one of snapping, twisting or hooking; a scale is designed on the knob, and a blade is installed on the knob. When the knob is turned, the blade can rotate inside the elastic tube and cut a corresponding number of rubber bands and / or springs.

2. The hemostatic device according to claim 1, characterized in that: The connection method of the elastic inner core, the spring and the two ends of the sleeve with the interfaces at the two ends of the elastic tube includes but is not limited to one of adhesive connection, inlaying, bundling, snapping, hooking or one-piece molding.

3. The hemostatic device according to claim 1, characterized in that: The elastic inner core is composed of multiple rubber bands and / or springs of the same size and length connected to the interface; the material of the spring is one or both of metal and plastic, and its two ends are fixedly connected to the interface 1 and the interface 2; the material of the sleeve is one or both of rubber and plastic with a certain elasticity, its inner diameter is equivalent to the outer diameter of the spring, it is sleeved on the outer surface of the spring, and its two ends are fixedly connected to the interface 1 and the interface 2.

4. The hemostatic device according to claim 1, characterized in that: The knob is connected to the interface 1 and the interface 2 by snap-on connection.

5. The hemostatic device according to claim 1, characterized in that: The elastic band is a bandage with a certain elastic force; and a handle is designed on the drawstring roll.

6. The hemostatic device according to claim 5, characterized in that: The elastic band is impregnated with antibacterial ingredients.

Images