Radial artery hemostat capable of automatically setting pressure

Abstract

The invention belongs to the technical field of radial artery haemostat, and particularly relates to an automatic pressure setting radial artery haemostat which comprises an elastic ring, the elastic ring is provided with a notch, an elastic connecting piece is fixedly connected to the notch, and a rubber contact block and a compression block are fixedly installed on the inner diameter wall of the elastic ring to increase friction force. A pressure applying assembly is mounted on the outer diameter wall of the elastic ring, and the pressure applying assembly is matched with the limiting assembly, so that gas pressure can be quickly transmitted into the compression block, and an affected part of a patient can be quickly compressed; meanwhile, the limiting assembly can adjust the pressure on the pressure applying assembly, so that the pressure applying assembly is controlled to reduce the required pressure, automatic pressure relief can be achieved when the affected part swells, and the adverse effect on the body caused by long-time swelling of the affected part is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of radial artery hemostat, in particular to a radial artery hemostat capable of automatically setting pressure. Background Art

[0002] The radial artery is one of the terminal branches of the brachial artery. It is slightly smaller than the ulnar artery and has branches such as the radial recurrent artery, muscular branch, wrist palm branch, superficial palmar branch, dorsal wrist branch, and dorsal palmar artery. The radial artery hemostat is used to close and compress the puncture point to stop bleeding after surgical operations such as arterial interventional surgery or after the removal of arteriovenous indwelling needles at the end of surgery.

[0003] After searching, a Chinese patent with publication number CN111513796B discloses a radial artery hemostat with automatic pressure setting, including a ring band mounted on a limb, and also including: a ring-shaped airbag fixed in the ring band; a hemostasis component for radial artery hemostasis arranged on the inner ring surface of the airbag; a first trachea connected to and fixed on the airbag, the end of the first trachea being detachably connected to a second trachea; a third trachea and a fourth trachea connected to the end of the second trachea via a three-way joint; a pressure gauge installed on the second trachea; an inflation component arranged at the end of the third trachea for inflating the airbag; a shell component connected to and fixed at the end of the fourth trachea; and an automatic pressure relief component arranged inside the shell component.

[0004] In the prior art, the radial artery hemostat is mainly composed of a bandage, an adhesive tape, a pressure plate, a compression head and a spiral handle. The above technical solution replaces the bandage, adhesive tape, pressure plate, compression head and other components with an air bag, and uses an inflation component to inflate the air bag to achieve compression hemostasis of the radial artery. By setting an automatic pressure relief component, the problem of inconvenience in unbuttoning the hemostat when the patient's wrist is swollen is solved; and by setting an air pressure detection device, the pressure relief process is completed by observing with a barometer and using an electric device. In clinical applications, since the hemostat is usually used on the patient's wrist or forearm, when the above technical solution is applied to the patient's wrist or forearm, the multiple tracheas on it will hinder the patient's normal movements, and the patient's movements may compress the trachea, which is easy to cause a slow pressure relief process or failure of the pressure relief process. Summary of the invention

[0005] The object of the present invention is to provide a radial artery hemostat with automatic pressure setting to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A radial artery hemostat with automatic pressure setting comprises an elastic ring, the elastic ring is provided with a notch and an elastic connector is fixedly connected to the notch, and a rubber contact block and a compression block are fixedly installed on the inner diameter wall of the elastic ring;

[0008] A pressure assembly is installed on the outer diameter wall of the elastic ring, and the pressure assembly includes a pressing plate rotatably installed on the outside of the elastic ring. An airbag is fixedly connected between the pressing plate and the outer diameter wall of the elastic ring, and the airbag is connected to the compression block.

[0009] Furthermore, the pressing plate includes an arc-shaped rotating part rotatably connected to the outside of the elastic ring, and the end of the arc-shaped rotating part extends in the direction of the arc-shaped rotating part to form an arc. Part of the airbag is fixedly connected between the arc-shaped rotating part and the elastic pressing part. When the arc-shaped rotating part turns toward the elastic ring, the airbag between the arc-shaped rotating part and the elastic pressing part shrinks. When the elastic pressing part contacts the upper part of the airbag, the arc-shaped rotating part and the elastic pressing part jointly compress the remaining part of the airbag.

[0010] Furthermore, a limiting assembly is installed on the outer side of the elastic ring, and a shifting rod is fixedly connected to the end of the arc-shaped rotating part.

[0011] Furthermore, the limiting assembly comprises a connecting frame fixedly mounted on the outer diameter wall of the elastic ring and a sliding limiting frame, a spring sheet is obliquely fixedly connected to the connecting frame, and a limiting plate is mounted on the sliding limiting frame.

[0012] Furthermore, the limiting component also includes a sliding rod, a slot for the sliding rod to pass through is opened in the sliding limit frame, an insertion block is fixedly connected to the top of the sliding rod, a spring is fixedly connected between the insertion block and the slot of the sliding limit frame, and a plurality of slots corresponding to the insertion blocks are opened at the bottom of the limiting plate.

[0013] Furthermore, the bottom end of the slide rod extends out of the slide limit frame, and the bottom end of the slide rod is fixedly connected to a pull rod.

[0014] Furthermore, the elastic connecting member comprises two arc-shaped connecting plates fixedly connected to two ends of the elastic ring, and an elastic band is fixedly connected between the two arc-shaped connecting plates.

[0015] Furthermore, an insert strip is fixedly connected to the outer side of one of the arc-shaped connecting plates, and an insert shell corresponding to the arc-shaped connecting plate is fixedly connected to the outer side of the other arc-shaped connecting plate, and an inclined blocking block is elastically slidably connected to the insert shell via a spring.

[0016] Furthermore, the compression block includes a rubber block fixedly mounted on the inner diameter wall of the elastic ring, a compression bag is embedded in the rubber block, the compression bag is provided with two bags in contact with the patient's limbs and a bag at the top connecting the two bags, and a connecting tube is installed between the top of the compression bag and the pressure assembly.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can quickly transfer gas pressure to the compression block through the cooperation of the pressure component and the limiting component, and quickly compress the patient's affected part to achieve the hemostasis function; at the same time, the limiting component can adjust the pressure of the pressure component, thereby controlling the pressure component to reduce the required pressure, and automatically release the pressure when the affected part swells, thereby avoiding long-term swelling of the affected part and causing adverse effects on the body;

[0019] 2. The present invention can enlarge the size of the present invention by providing an elastic connector to adapt to the thickness of the affected part of different patients, thereby expanding the scope of application of the present invention. At the same time, the elastic connector can be snapped together to reduce the inner diameter of the elastic ring so that the elastic ring fits outside the affected part;

[0020] 3. The present invention causes the arc-shaped rotating part and the elastic pressing part. After the spring sheet releases the limit on the lever, the elastic pressing part can quickly pop out under the action of its own elastic force, so that the airbag quickly absorbs the gas that compresses the bag body and releases the pressure quickly, thereby achieving the purpose of rapid decompression. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0023] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the present invention;

[0024] Figure 3 It is a schematic diagram of the split structure of the limiting component of the present invention;

[0025] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 5 It is a schematic diagram of the split structure of the compression block of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the limiting component of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the elastic connecting member of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the pressing plate of the present invention.

[0030] In the figure: 1. elastic ring; 2. elastic connecting member; 201. arc-shaped connecting plate; 202. elastic band; 203. insert strip; 204. insert shell; 205. inclined blocking block; 3. rubber contact block; 4. compression block; 401. rubber block; 402. compression bag body; 403. connecting pipe; 5. pressure component; 501. pressing plate; 5011. arc-shaped rotating part; 5012. elastic pressing part; 502. air bag; 5013. lever; 6. limiting component; 601. connecting frame; 602. spring sheet; 603. sliding limit frame; 604. limit plate; 605. sliding rod; 606. insert block; 607. pull rod; 608. slot. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] Reference Figures 1 to 8 A radial artery hemostat with automatic pressure setting includes an elastic ring 1, the elastic ring 1 is provided with a notch and an elastic connector 2 is fixedly connected to the notch, a rubber contact block 3 and a compression block 4 are fixedly installed on the inner diameter wall of the elastic ring 1, the rubber contact block 3 is used to contact with the patient's limb to increase friction, and the compression block 4 is used to contact with the patient's wrist or forearm where bleeding is to be stopped;

[0034] A pressure assembly 5 is installed on the outer diameter wall of the elastic ring 1, and the pressure assembly 5 is used to provide air pressure to the compression block 4. The pressure assembly 5 includes a pressing plate 501 rotatably installed on the outside of the elastic ring 1, and an air bag 502 is fixedly connected between the pressing plate 501 and the outer diameter wall of the elastic ring 1, and the air bag 502 is connected to the compression block 4.

[0035] In the prior art, hemostasis of the radial artery is performed by a hemostat. A common hemostat is composed of a bandage, an adhesive tape, a pressure plate, a compression head and a spiral handle, which has a good fixing effect to stop bleeding. If the affected part is compressed for a long time, swelling of varying degrees will occur, which will have an adverse effect on the body. In order to quickly reduce the pressure on the affected part when swelling occurs, the present invention proposes the following improvement scheme: by providing an elastic connector 2, the size of the present invention can be enlarged to adapt to the thickness of the affected part of different patients, thereby expanding the scope of application of the present invention; at the same time, the elastic connector 2 can be buckled together to reduce the inner diameter of the elastic ring 1 so that the elastic ring 1 fits outside the affected part; by providing an arc-shaped rotating part 5011 and an elastic pressing part 5012, after the spring sheet 602 releases the limit on the lever 5013, the elastic pressing part 5012 can be quickly ejected under the action of its own elastic force, so that the airbag 502 quickly absorbs the gas that compresses the balloon body 402, so that it is quickly depressurized, thereby achieving the purpose of rapid decompression.

[0036] Specifically, the pressing plate 501 includes an arc-shaped rotating part 5011 rotatably connected to the outside of the elastic ring 1, and the end of the arc-shaped rotating part 5011 extends toward the direction of the arc-shaped rotating part 5011 to form an elastic pressing part 5012. The elastic pressing part 5012 is arc-shaped, and part of the airbag 502 is fixedly connected between the arc-shaped rotating part 5011 and the elastic pressing part 5012. When the arc-shaped rotating part 5011 turns toward the elastic ring 1, the airbag 502 between the arc-shaped rotating part 5011 and the elastic pressing part 5012 shrinks. When the elastic pressing part 5012 contacts the upper part of the airbag 502, the arc-shaped rotating part 5011 and the elastic pressing part 5012 jointly compress the remaining part of the airbag 502.

[0037] Specifically, a limiting assembly 6 is installed on the outer side of the elastic ring 1, and a lever 5013 is fixedly connected to the end of the arc-shaped rotating part 5011. The limiting assembly 6 is used to limit the position of the arc-shaped rotating part 5011 and the elastic pressing part 5012 when the lever 5013 is inserted into the limiting assembly 6.

[0038] Before use, the annular body composed of the elastic ring 1 and the elastic connecting member 2 is first put on the patient's hand and moved to the part to be hemostatic, then stopped at the part to be hemostatic, and then the position of the compression block 4 is calibrated, and the lever 5013 is toggled to rotate the arc-shaped rotating part 5011 and the elastic pressing part 5012 toward the elastic ring 1. During this process, the airbag 502 is compressed by the elastic pressing part 5012 and folded. The folded position is the position where the end of the elastic pressing part 5012 is located. As the pressing plate 501 continues to rotate, the airbag 502 between the arc-shaped rotating part 5011 and the elastic pressing part 5012 is pressurized, and the gas in the airbag 502 is pressed into the compression block 4 until After the pressing plate 501 completely compresses the airbag 502, the gas in the airbag 502 is completely passed into the compression block 4. After the gas is passed into the compression block 4, the air pressure increases, and the expanded compression block 4 will compress the radial artery at the site of the patient to be hemostatic, thereby playing a role in hemostasis. When the pressing plate 501 is fully rotated into place, the lever 5013 is stuck on the limiting component 6 to prevent the pressing plate 501 from bouncing up and causing the airbag 502 to recover, so that the patient's hemostatic site can be quickly compressed, thereby playing a role in rapid hemostasis and easy operation. At the same time, only the pressing plate 501 needs to be rotated, which is simple to operate, and the gas compression method can also transmit pressure well, and at the same time will not excessively compress other parts of the patient, thereby improving the compression effect.

[0039] During the rotation of the arc-shaped rotating part 5011, the elastic pressing part 5012 will rotate toward the arc-shaped rotating part 5011 under the transfer of pressure and compress the bag body 402. Then, during the flipping process, the elastic pressing part 5012 will also press on the top of the airbag 502, compressing the airbag 502 on the elastic ring 1 until the airbag 502 is completely compressed. When the pressing plate 501 rotates, the arc-shaped rotating part 5011 and the elastic pressing part 5012 will rotate upward. When the arc-shaped rotating part 5011 and the elastic pressing part 5012 rotate to a vertical state, the elastic pressing part 5012 will be pressed toward the arc-shaped rotating part 5011 under the action of pressure. Then, the arc-shaped rotating part 5011 and the elastic pressing part 5012 are attached to the elastic ring 1, and are restricted by the restriction component 6 after the lever 5013 is inserted into the restriction component 6.

[0040] Specifically, the limiting component 6 includes a connecting frame 601 and a sliding limiting frame 603 fixedly mounted on the outer diameter wall of the elastic ring 1, a spring sheet 602 is obliquely fixedly connected to the connecting frame 601, a limiting plate 604 is installed on the sliding limiting frame 603, and the limiting plate 604 is used to limit the spring sheet 602. The limiting component 6 also includes a sliding rod 605, and a slot for the sliding limiting frame 603 to pass through is opened in the sliding limiting frame 605. The top of the sliding rod 605 is fixedly connected with an insert block 606, and the insert block 606 is fixedly connected to the slot of the sliding limiting frame 603. The bottom of the spring limit plate 604 is provided with a plurality of slots 608 corresponding to the plug block 606, the bottom end of the slide rod 605 extends to the outside of the sliding limit frame 603, and the bottom end of the slide rod 605 is fixedly connected with a pull rod 607, and by setting an arc-shaped rotating portion 5011 and an elastic pressing portion 5012, after the spring sheet 602 releases the restriction on the lever 5013, the elastic pressing portion 5012 can pop out quickly under the action of its own elastic force, so that the airbag 502 can quickly absorb the gas that compresses the bag body 402, so that it can quickly release the pressure, thereby achieving the purpose of rapid decompression.

[0041] When the lever 5013 rotates to the spring sheet 602, the pressure will cause the spring sheet 602 to deflect downward, freeing up space for the lever 5013 to enter the connecting frame 601, and then the spring sheet 602 will return to its original position. The lever 5013 will be pressed against the bottom of the spring sheet 602 under the action of the residual air pressure of the airbag 502 and the elastic force of the arc-shaped rotating part 5011 itself. At the same time, the limit plate 604 will limit the upward rotation of the spring sheet 602. The more the limit plate 604 covers the spring sheet 602, the more the spring sheet 602 can move upward. The smaller the rotating part is, the greater the pressure that the lever 5013 needs to overcome the elastic force of the spring sheet 602 to deform the spring sheet 602 and break away from the restraint of the spring sheet 602. Before the elastic ring 1 is installed, the limit plate 604 can be pushed to adjust the size of the limit plate 604 above the spring sheet 602, so as to control the size of the elastic force that the lever 5013 can overcome. That is, when the area covered by the limit plate 604 on the spring sheet 602 is small, the spring sheet 602 will produce a greater resistance to the lever 5013. Since the compression block 4 is in contact with the affected part of the patient, if the affected part swells abnormally, it will generate pressure on the compression block 4, forcing the gas pressure in the compression block 4 to be transmitted to the airbag 502. If the pressure in the airbag 502 is too high, it will generate a certain pressure on the elastic pressing part 5012, generating a force for the elastic pressing part 5012 to rotate upward, so that the lever 5013 generates pressure on the spring sheet 602. If the area of ​​the spring sheet 602 covered by the limiting plate 604 is relatively large at this time, the lever 5013 causes the spring sheet 602 to rotate upward. It is easier to produce upward deformation and break away from the pressure of the spring sheet 602. The limiting plate 604 covers a larger area of ​​the spring sheet 602, and it is more difficult for the lever 5013 to cause the spring sheet 602 to produce upward deformation. Therefore, the position of the limiting plate 604 can be adjusted as needed, so that when the affected part swells, the spring sheet 602 can release the obstruction of the lever 5013, so that the airbag 502 can recover quickly, and the compression block 4 can release the pressure on the affected part, thereby achieving the effect of automatic decompression, avoiding excessive swelling of the affected part to bring adverse effects on the body.

[0042] The limit plate 604 can slide in the sliding limit frame 603, and the sliding limit frame 603 can limit the limit plate 604. During the sliding of the limit plate 604, the slot 608 at the bottom of the limit plate 604 will pass through the plug block 606 at the top of the slide rod 605. The top of the plug block 606 has an inclined surface. During the movement of the limit plate 604, the plug block 606 will be compressed downward for a distance until the next slot 608 is stuck on the plug block 606. When the patient's affected part is excessively swollen, but the position of the limit plate 604 is too small, the pull rod 607 can be pulled downward to disengage the plug block 606 from the slot 608. Since the spring sheet 602 and the limit plate 604 are both in an inclined state, the spring sheet 602 is also under pressure from the lever 5013 at this time. 2 will transfer part of the pressure to the limit plate 604, and the limit plate 604 will slide under the action of its own gravity, and cooperate with the pressure from the spring sheet 602 to accelerate the sliding of the limit plate 604, so that the area of ​​the limit plate 604 covering the spring sheet 602 is rapidly reduced, so that the lever 5013 can easily deform the spring sheet 602 upward and break away from the space surrounded by the connecting frame 601 and the spring sheet 602. At this time, the pressing plate 501 will pop out quickly under the elastic force of the arc-shaped rotating part 5011 itself, and force the space inside the airbag 502 to increase rapidly, and the gas in the compression block 4 is sucked into the airbag 502, thereby quickly reducing the gas pressure in the compression block 4, playing a role of active decompression, and preventing the limit plate 604 from being improperly positioned and causing the inability to automatically decompress.

[0043] Specifically, the elastic connecting member 2 includes two arc-shaped connecting plates 201 fixedly connected to the two ends of the elastic ring 1, an elastic band 202 is fixedly connected between the two arc-shaped connecting plates 201, an insert strip 203 is fixedly connected to the outer side of one of the arc-shaped connecting plates 201, and an insert shell 204 corresponding to the arc-shaped connecting plate 201 is fixedly connected to the outer side of the other arc-shaped connecting plate 201, and an inclined blocking block 205 is elastically slidably connected to the insert shell 204 through a spring.

[0044] After the annular body formed by the elastic ring 1 and the elastic connector 2 is put on the affected part, the two ends of the elastic ring 1 are pressed to make the two arc-shaped connecting plates 201 approach each other, so that the inserting strip 203 is inserted into the inserting shell 204 and is stuck by the inclined blocking block 205. The length of the elastic band 202 can be extended to the deformation range of the annular body formed by the elastic ring 1 and the elastic connector 2 to adapt to affected parts of different thicknesses.

[0045] Specifically, the compression block 4 includes a rubber block 401 fixedly mounted on the inner diameter wall of the elastic ring 1, and a compression bag 402 is embedded in the rubber block 401. The compression bag 402 is provided with two bags in contact with the patient's limbs and a bag located at the top connecting the two bags. A connecting tube 403 is installed between the top of the compression bag 402 and the pressure component 5.

[0046] The gas in the airbag 502 will pass into the compression bag 402 through the connecting tube 403, and compress the affected part through the two compression bags 402. Multiple compression bags 402 can exert better compression on the affected part and achieve better hemostasis effect. By setting the elastic connector 2, the size of the present invention can be enlarged to adapt to the thickness of the affected part of different patients, thereby expanding the scope of application of the present invention. At the same time, the elastic connector 2 can be snapped together to reduce the inner diameter of the elastic ring 1 so that the elastic ring 1 fits outside the affected part.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A radial artery hemostat with automatic pressure setting, comprising an elastic ring (1), wherein the elastic ring (1) is provided with a notch and an elastic connector (2) is fixedly connected to the notch, characterized in that: A rubber contact block (3) and a pressure block (4) are fixedly mounted on the inner diameter wall of the elastic ring (1); A pressure assembly (5) is mounted on the outer diameter wall of the elastic ring (1), and the pressure assembly (5) comprises a pressing plate (501) rotatably mounted on the outer side of the elastic ring (1), an air bag (502) is fixedly connected between the pressing plate (501) and the outer diameter wall of the elastic ring (1), and the air bag (502) is connected to the compression block (4).

2. A radial artery hemostat with automatic pressure setting according to claim 1, characterized in that: The pressing plate (501) comprises an arc-shaped rotating part (5011) rotatably connected to the outside of the elastic ring (1); the end of the arc-shaped rotating part (5011) extends in the direction of the arc-shaped rotating part (5011) to form an elastic pressing part (5012); the elastic pressing part (5012) is arc-shaped; part of the airbag (502) is fixedly connected between the arc-shaped rotating part (5011) and the elastic pressing part (5012); when the arc-shaped rotating part (5011) turns toward the elastic ring (1), the airbag (502) between the arc-shaped rotating part (5011) and the elastic pressing part (5012) contracts; when the elastic pressing part (5012) contacts the upper part of the airbag (502), the arc-shaped rotating part (5011) and the elastic pressing part (5012) jointly compress the remaining part of the airbag (502).

3. A radial artery hemostat with automatic pressure setting according to claim 2, characterized in that: A limiting assembly (6) is installed on the outer side of the elastic ring (1), and a lever (5013) is fixedly connected to the end of the arc-shaped rotating portion (5011).

4. A radial artery hemostat with automatic pressure setting according to claim 3, characterized in that: The limiting assembly (6) comprises a connecting frame (601) fixedly mounted on the outer diameter wall of the elastic ring (1) and a sliding limiting frame (603); a spring sheet (602) is fixedly and obliquely connected to the connecting frame (601); and a limiting plate (604) is mounted on the sliding limiting frame (603).

5. A radial artery hemostat with automatic pressure setting according to claim 4, characterized in that: The limiting component (6) also includes a sliding rod (605), a slot for the sliding rod (605) to pass through is opened in the sliding limit frame (603), an insert block (606) is fixedly connected to the top of the sliding rod (605), a spring is fixedly connected between the insert block (606) and the slot of the sliding limit frame (603), and a plurality of slots (608) corresponding to the insert block (606) are opened at the bottom of the limiting plate (604).

6. A radial artery hemostat with automatic pressure setting according to claim 5, characterized in that: The bottom end of the sliding rod (605) extends outside the sliding limit frame (603), and the bottom end of the sliding rod (605) is fixedly connected to a pull rod (607).

7. A radial artery hemostat with automatic pressure setting according to claim 6, characterized in that: The elastic connecting member (2) comprises two arc-shaped connecting plates (201) fixedly connected to two ends of the elastic ring (1), and an elastic band (202) is fixedly connected between the two arc-shaped connecting plates (201).

8. The radial artery hemostat with automatic pressure setting according to claim 7, characterized in that: An insert strip (203) is fixedly connected to the outer side of one of the arc-shaped connecting plates (201), and an insert shell (204) corresponding to the arc-shaped connecting plate (201) is fixedly connected to the outer side of the other arc-shaped connecting plate (201), and an inclined surface blocking block (205) is elastically slidably connected to the insert shell (204) via a spring.

9. A radial artery hemostat with automatic pressure setting according to claim 8, characterized in that: The compression block (4) comprises a rubber block (401) fixedly mounted on the inner diameter wall of the elastic ring (1), wherein a compression sac (402) is embedded in the rubber block (401), wherein the compression sac (402) is provided with two sacs in contact with the patient's limbs and a sac located at the top to connect the two sacs, and a connecting pipe (403) is installed between the top of the compression sac (402) and the pressure-applying assembly (5).

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