A radial artery compression hemostasis device

Abstract

This application relates to the field of medical devices, specifically disclosing a radial artery compression hemostasis device, including a connecting ring for attaching the hemostasis device to the limb requiring hemostasis; a presser mounted on the connecting ring and applying pressure to the puncture site, the presser including an observation chamber, a pressing element, and an operating element, the observation chamber being transparent and located around the pressing element, the operating element controlling the pressing element to apply pressure to the puncture site; a semiconductor cooling plate providing heat or cold to the pressing element to change its temperature; a power supply providing power to the semiconductor cooling plate; a temperature sensor electrically connected to the power supply and maintaining contact with the pressing element to continuously measure its temperature; a controller controlling the power supply's on / off state based on feedback from the temperature sensor and temperature settings; and a display showing the temperature. This application has the effect of adjusting the compression temperature.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a radial artery compression hemostasis device. Background Technology

[0002] After arterial puncture, a pressure hemostat is usually used for temporary hemostasis. The radial artery is one of the most important arteries in the upper limb. It originates from the inner side of the elbow and extends along the forearm and wrist, supplying blood to the arm and hand. If radial artery bleeding occurs, measures need to be taken to stop the bleeding quickly. A pressure hemostat can be used to directly compress the bleeding site and apply pressure for at least 5 minutes to promote clotting.

[0003] There are already related radial artery hemostasis devices, such as the patent with publication number CN106725704B, which discloses a radial artery compression hemostasis device, including a compression band and a fixing band. The compression band has a hollow structure, and a compression airbag is provided in the hollow structure. An air inlet tube is connected to the compression airbag. The air inlet tube is connected to the compression band body and connected to the inflation airbag through an inflation tube. The fixing band has a locking device at the end, which consists of several pressing protrusions on one end face of the fixing band and several corresponding blocking grooves on the opposite end face of the pressing protrusions on the other end face of the fixing band. A cavity is formed between the inner wall and the outer wall of the air inlet tube. An air inlet connected to the air inlet channel is provided at the lower end of the cavity. Several air outlets are provided in the cavity. Corresponding to the air outlets, several expansion protrusions of elastic material are provided on the inner wall of the air inlet tube. Several fixing grooves are provided on the outer walls on both sides of the inflation tube corresponding to the expansion protrusions.

[0004] However, all current hemostatic devices only have the function of compression hemostasis. In fact, the appropriate temperature can accelerate the hemostasis effect, but due to technical reasons, there are no relevant products at present. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a radial artery compression hemostasis device.

[0006] The radial artery compression hemostasis device provided in this application adopts the following technical solution:

[0007] A radial artery compression hemostasis device, characterized in that:

[0008] Includes a connecting ring for attaching the hemostatic device to the limb requiring hemostasis;

[0009] The presser is mounted on the connecting ring and applies pressure to the puncture site. The presser includes an observation chamber, a pressing element, and an operating element. The observation chamber is located around the pressing element and is transparent. The operating element controls the pressing element to apply pressure to the puncture site.

[0010] A semiconductor cooling plate provides heat or cold to the pressing component to change its temperature.

[0011] The power supply provides power to the semiconductor cooling plate;

[0012] A temperature sensor is electrically connected to a power source and maintains contact with the pressing component to continuously measure the temperature of the pressing component.

[0013] The controller controls the power supply switch based on feedback from the temperature sensor and the set temperature.

[0014] The monitor displays the temperature.

[0015] By employing the above technical solution, after power is supplied to the thermoelectric cooling plate, the hot or cold energy of the plate is transferred to the pressure points. These pressure points typically come into direct or indirect contact with the skin, ensuring the pressure point is at a suitable set temperature. The thermoelectric cooling plate can provide heat or cold, allowing for the selection of an appropriate temperature for treatment based on the patient's specific needs and condition. For example, heat therapy can promote blood circulation, while cold therapy can reduce swelling and pain. A temperature sensor monitors the temperature of the pressure points in real time and feeds the data back to the controller. The controller then controls the power switch based on the set temperature, ensuring the pressure point temperature remains within the set range.

[0016] Optionally, a first conductive element and a second conductive element are provided on the inner wall of the observation chamber. One electrode of the power supply is connected to the first conductive element, and the other electrode of the power supply is connected to the second conductive element. One end of the semiconductor cooling plate is in sliding contact with the first conductive element to maintain electrical connection, and the other end of the semiconductor cooling plate is in sliding contact with the second conductive element to maintain electrical connection. The semiconductor cooling plate is attached to the pressing element and can move synchronously.

[0017] By adopting the above technical solution, since this product uses a semiconductor cooling plate to directly contact the pressing component to transfer heat, the semiconductor cooling plate will also move, and the semiconductor cooling plate will maintain electrical connection through sliding contact.

[0018] Optionally, the operating component includes a screw and a slider, the screw being threadedly connected to the observation chamber, the screw being rotatably connected to the slider, and the slider being slidably engaged with the observation chamber.

[0019] By adopting the above technical solution, rotating the screw can drive the slider to press down, and the slider can drive the pressing device to press down. Through the cooperation of the screw and the slider, the operating device can precisely control the pressure applied by the pressing device to the puncture site, ensuring hemostasis while avoiding excessive pressure that could cause injury to the patient.

[0020] Optionally, the slider is made of a material with good thermal conductivity and is located between the pressing element and the semiconductor cooling plate.

[0021] By adopting the above technical solution, the slider can indirectly transfer heat, and its design also facilitates the installation of the thermoelectric cooling plate. The slider is generally made of insulating material.

[0022] Optionally, a power supply slot is formed on the connecting ring for placing a power source, wherein the power source is a storage battery or a dry cell battery.

[0023] Optionally, notches are provided at both ends of the power slot to facilitate the removal of the battery.

[0024] By adopting the above technical solution, the power slot on the connecting ring facilitates the installation of storage batteries or dry batteries to power the semiconductor cooling plate, and the notches at both ends of the power slot facilitate the removal and replacement of the batteries.

[0025] Optionally, the side of the connecting strip opposite to the presser is provided with an enlarged fitting portion.

[0026] By adopting the above technical solution, the enlarged fitting part on the opposite side of the connecting strap and the presser increases the contact area between the hemostatic device and the limb, improves the stability of fixation, and reduces the displacement of the device during use.

[0027] Optionally, the pressing member has an adhesive portion formed thereon, and the adhesive portion is covered with release paper.

[0028] By adopting the above technical solution, the adhesive portion on the pressing component can be protected by release paper. During use, the release paper is peeled off, and the protective sticker is adhered to the adhesive portion. The protective sticker can be understood as a band-aid.

[0029] Optionally, the adhesive portion can be detachably mounted on the pressing member.

[0030] By adopting the above technical solution, the adhesive part can be adhered to the skin together with the protective film.

[0031] Optionally, the adhesive part has a connecting piece, which is fixed to the pressing member in an intermittent connection manner.

[0032] By adopting the above technical solution, the connecting piece and the pressing part are fixed by intermittent connection, which not only ensures the fixing effect of the adhesive part, but also facilitates disassembly.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. This radial artery compression hemostasis device achieves a series of functions such as hemostasis, pressure regulation, temperature control, and temperature monitoring and display through the coordinated work of multiple components such as connecting ring, presser, semiconductor cooling plate, power supply, temperature sensor, controller, and display, providing a comprehensive and effective solution for radial artery compression hemostasis;

[0035] 2. The observation chamber of the compression device is transparent, allowing medical staff to directly observe the condition of the puncture site, such as whether there is bleeding or swelling, and adjust the hemostasis strategy in a timely manner;

[0036] 3. The operating mechanism, through the cooperation of the screw and the slider, can precisely control the pressure applied to the puncture site by the pressing device, ensuring hemostasis while avoiding excessive pressure that could cause injury to the patient;

[0037] 4. The semiconductor cooling plate can provide heat or cold. The appropriate temperature can be selected for treatment according to the patient's specific needs and condition. For example, heat therapy can promote blood circulation, while cold therapy can reduce swelling and pain. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0039] Figure 2 This is a structural diagram of the screw, slider, and semiconductor cooling plate;

[0040] Figure 3 yes Figure 1 The upper closed section of the observation room is hidden inside, displaying the first conductive component and the second conductive component;

[0041] Figure 4 This is a structural diagram of the first state of the control component;

[0042] Figure 5 This is a structural diagram of the second state of the control component.

[0043] Reference numerals: 1. Connecting ring; 2. Presser; 3. Enlarged bonding part; 4. Observation chamber; 5. Pressing element; 6. Screw; 7. Slider; 8. First conductive element; 9. Second conductive element; 10. Power supply slot; 11. Power supply; 12. Notch; 13. Display; 14. Controller; 15. Semiconductor cooling plate; 16. Adhesive part; 17. Release paper; 18. Connecting piece; 19. Protective film; 20. Temperature sensor; 21. First contact a; 22. First contact b; 23. First contact c 24. Second contact a; 25. Second contact b; 26. Second contact c; 27. Control switch; 28. First switching element; 29. ​​Second switching element; 30. Insulating plate; 31. First contact a; 32. First contact b; 33. First contact c; 34. Second contact a; 35. Second contact b; 36. Second contact c; 37. Rotating shaft; 38. Translation push block; 39. Limit block; 40. Control rod; 41. Limit ring; 42. Elastic element; 43. Guide rod. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0045] This application discloses a radial artery compression hemostasis device. (Refer to...) Figure 1 The radial artery compression hemostasis device includes a connecting ring 1 and a presser 2.

[0046] The connecting ring 1 itself is existing technology and can be implemented in the manner described in the background document, or it can be a hook and loop fastener (similar to a blood pressure monitor strap) or a belt-like structure. Therefore, it will not be described in detail. The difference lies in that, compared to a typical connecting ring 1, the connecting ring 1 of this application has enlarged fitting portions 3 formed at both ends along its axial direction (arm length direction), and the enlarged fitting portions 3 are integrally formed with the connecting ring 1. The enlarged fitting portions 3 increase the contact area between the hemostatic device and the limb, improve the stability of fixation, and reduce the displacement of the device during use.

[0047] The presser 2 is fixed on the connecting strap, and the position of the presser 2 is exactly opposite to the enlarged fitting part 3 (face to face). It can be understood that the presser 2 is located on the wrist side and the enlarged fitting part 3 is located on the back of the hand side.

[0048] The presser 2 is mounted on the connecting ring 1 and applies pressure to the puncture site. The presser 2 includes an observation chamber 4, a pressing element 5, and an operating element. The observation chamber 4 is located around the pressing element 5 and is transparent. The operating element controls the pressing element 5 to apply pressure to the puncture site. The observation chamber 4 can be fixed to the connecting strip by adhesive. The connecting strip is made of a soft material or a flexible material with a certain deformation capacity to adjust the size of the connecting strip. The observation chamber 4 is specifically a square frame structure, with one end open near the limb and the other end closed. The operating chamber includes a screw 6 and a slider 7. The screw 6 passes through the closed end of the square frame and is threaded to it. The slider 7 is at least partially attached to the inner wall of the square frame so that the slider 7 can only slide. The end of the screw 6 is rotatably connected to the slider 7 so that the screw 6 can only rotate relative to the slider 7. Specifically, the end of the screw 6 forms a diameter larger than the end of the screw 6, and the slider 7 has a rotating hole of the same size as the end. When the screw 6 rotates, the slider 7 can only move with the screw 6 to press or release. The slider 7 and the pressing component 5 can be directly connected or indirectly connected. This solution uses a direct connection method, where the pressing component 5 and the slider 7 are connected by adhesive. In this solution, the pressing component 5 is preferably a PP rubber sheet.

[0049] To accelerate hemostasis or provide a more comfortable compression method, a temperature control component is added to this solution. The temperature control component specifically includes a semiconductor cooling plate 15, a temperature sensor, a controller 14, and a power supply 11.

[0050] The semiconductor cooling plate 15 is bonded to the slider 7, which is made of a material with good thermal conductivity, such as polyetheretherketone (PEEK) or modified polypropylene (modified with thermally conductive materials). A first conductive element 8 and a second conductive element 9 are installed on the inner wall of the observation chamber 4. The first conductive element 8 and the second conductive element 9 are generally fixed to the inner wall of the observation chamber 4 by bonding. In this design, both the first conductive element 8 and the second conductive element 9 are strip-shaped structures. A power supply slot 10 for placing a power supply 11 is formed on one side of the connecting ring 1 located in the observation chamber 4. The power supply 11 is a rechargeable battery or a dry cell battery, allowing the patient to move freely without needing to stay in a specific location. Notches 12 are provided at both ends of the battery slot for easy battery removal and replacement. One electrode of the power supply 11 is connected to the first conductive element 8, and the other electrode is connected to the second conductive element 9. One end of the semiconductor cooling plate 15 slides in contact with the first conductive element 8 and maintains an electrical connection, while the other end of the semiconductor cooling plate 15 slides in contact with the second conductive element 9 and maintains an electrical connection.

[0051] The display 13 and controller 14 are both located on the opposite side of the observation chamber 4, thus achieving structural balance. The power supply 11 powers both the display 13 and controller 14. The temperature sensor 20 is also located on the inner wall of the observation chamber 4. In this design, the temperature sensor 20 is elongated and extends along the sliding direction of the pressing member 5 to ensure that at least a portion of the pressing member 5 remains in contact with the temperature sensor during movement. The power supply 11 powers the temperature sensor via wires, which can be pre-embedded within the observation chamber 4 and inserted during injection molding. The wires between the power supply 11 and the first conductive member 8 and the second conductive member 9 can also be pre-embedded or connected later.

[0052] Apart from the semiconductor cooling plate 15, the first conductive component 8, and the second conductive component 9, the remaining equipment that generally does not require electricity is made of plastic materials such as PP. Plastic materials generally have good corrosion resistance and are not easily rusted or damaged by contact with moisture, disinfectants, or other substances during daily use and cleaning, thus extending the lifespan of the device and reducing maintenance costs. The observation window is generally made of heat-insulating materials, such as modified PP (with heat-insulating material added to PP), rigid polyurethane foam, or extruded polystyrene foam (XPS board).

[0053] To reduce the risk of injury, a protective patch 19 is typically applied after compression. For ease of operation and safety, in this design, the pressing member 5 has an adhesive portion 16 at each end along the arm's length. The adhesive portion 16 generally has only one adhesive side near the arm, with release paper 17 attached to it. The lower surface of the adhesive portion 16 is flush with the lower surface of the pressing member 5 (the lower surface refers to the side near the arm). In actual use, the release paper 17 is first removed, and the protective patch 19 is then adhered to the adhesive portion 16. The protective patch 19 is typically a skin protector 19 with hemostatic properties, such as a band-aid. The non-adhesive side of the protective patch 19 is then pressed against the adhesive portion 16, with the adhesive side facing the skin. After compression, the protective patch 19 remains on the skin.

[0054] To ensure the skin protector 19 remains adhered to the skin, the adhesive portion 16 is detachably mounted on the pressing member 5. This allows the adhesive portion 16 to be separated from the pressing member 5, leaving it and the skin protector 19 on the skin. Specifically, the adhesive portion 16 consists of a connecting piece 18 and adhesive attached to the connecting piece 18, with release paper 17 adhered to the adhesive. The connecting piece 18 can be fixed to the pressing member 5 using an intermittent connection method. An intermittent connection can be understood as connecting the connecting piece 18 and the pressing member 5 through several small connection points, with intervals between these points. This intermittent connection method ensures both the fixation effect of the adhesive portion 16 and facilitates disassembly.

[0055] The controller 14 is further equipped with a control component, which is used to switch the connection between the positive and negative terminals of the power supply 11 and the semiconductor cooling plate 15, switch the direction of current flow, and ultimately exchange the functions of the cold and hot ends of the semiconductor cooling plate 15, i.e., the cold end generates heat and the hot end cools. The control component includes a first contact a21, a first contact b22, a first contact c23, a second contact a24, a second contact b25, a second contact c26, a control switch 27, a first switching element 28, and a second switching element 29. The first switching element 28 has a first contact portion a31, a first contact portion b32, and a first contact portion c33, and the second switching element 29 has a second contact portion a34, a second contact portion b35, and a second contact portion c36. The first switching element 28 and the second switching element 29 are connected as a whole by an insulating component, specifically an insulating plate 30. The control switch 27 includes a rotating shaft 37, a translation push block 38, a limit block 39, a control rod 40, a limit ring 41, and an elastic element 42. A groove is formed on the controller 14, and the translation push block 38 moves within the groove. One end of the control rod 40 is rotatably connected to the translation push block 38. The rotating shaft 37 is fixed in the middle of the control rod 40. The limit ring 41 is fixed to the inner wall of the controller 14. One end of the rotating shaft 37 extends into the limit ring 41, allowing the shaft to rotate relative to the limit ring 41 and move along the length of the limit ring 41 (the length of the limit ring 41 is perpendicular to the extension direction of the groove). The elastic element 42 is a V-shaped metal structure, with its bottom fixed to the inner wall of the controller 14 housing. Its deformable sides can rotate relative to the bottom. The upper end of the elastic element 42 abuts against the insulating plate 30. Two guide rods 43 pass through the insulating plate 30 and are fixed to the housing of the controller 14. This structure reduces the size of the controller 14 by using a translation pusher 38 to move in conjunction with the housing of the controller 14.

[0056] As shown in the figure, first contact a21 and first contact b22 are two contacts branching off from one end of the wire connecting to the semiconductor cooling plate 15; second contact a24 and second contact b25 are two contacts branching off from the other end of the wire connecting to the semiconductor cooling plate 15. First contact c23 is a contact on the wire connecting to one electrode of the power supply 11, and second contact c26 is a contact on the wire connecting to the other electrode of the power supply 11.

[0057] In the first state, such as Figure 4 As shown, the first contact part a31 is always in contact with the first contact point c23, and the first contact part b32 is in contact with the first contact point b22; the second contact part a34 is always in contact with the second contact point c26, and the second contact part b35 is in contact with the second contact point b25. At this time, the cold end is below and the hot end is above, that is, the cold end is closer to the skin. At this time, the control lever 40 and the insulating plate 30 can be understood as being in a state of no contact or having some small gaps.

[0058] Pushing the translation pusher 38 causes the rotating shaft 37 to move downwards and rotate horizontally. When the control rod 40 is perpendicular to the insulating plate 30, the rotating shaft 37 is at its lowest position. To maintain stable contact, the translation pusher 38 continues to move, and the rotating shaft 37 moves upwards a short distance until the control rod 40 abuts against the limiting block 39. At this point, the control rod 40 tilts to the other side. Because this tilt is steeper, the rotating shaft 37 still moves downwards compared to the first state, and the contact point between the control rod 40 and the insulating plate 30 also moves downwards.

[0059] like Figure 5 At this time, the first contact portion a31 is always in contact with the first contact point c23, the second contact portion a34 is always in contact with the second contact point c26, the first contact portion c33 is in contact with the second contact point a24, and the second contact portion c36 is in contact with the first contact point a21, which is in the second state with the hot end facing down. The breaking of the contact is not described.

[0060] This application offers the following advantages: The radial artery compression hemostasis device, through the coordinated operation of multiple components including a connecting ring 1, a presser 2, a semiconductor cooling plate, a power supply 11, a temperature sensor, a controller 14, and a display 13, achieves a series of functions such as hemostasis, pressure regulation, temperature control, and temperature monitoring and display, providing a comprehensive and effective solution for radial artery compression hemostasis. The observation chamber 4 of the presser 2 is transparent, allowing medical personnel to directly observe the puncture site, such as for bleeding or swelling, and adjust the hemostasis strategy accordingly. The operating mechanism, through the cooperation of the screw 6 and the slider 7, can precisely control the pressure applied to the puncture site by the presser 5, ensuring hemostasis while avoiding excessive pressure that could damage the patient. The semiconductor cooling plate 15 can provide heat or cold, allowing for the selection of an appropriate temperature for treatment based on the patient's specific needs and condition; for example, heat therapy can promote blood circulation, while cold therapy can reduce swelling and pain.

[0061] The implementation principle of the radial artery compression hemostasis device in this application embodiment is as follows: Before use, peel off the release paper 17 and flatten the protective sticker 19 and stick it onto the adhesive part 16. After inserting the power supply 11, the controller 14 automatically heats the pressing part 5 to the set temperature after the semiconductor cooling plate 15 is powered on, according to the set temperature. Due to design reasons, the actual temperature will fluctuate slightly up and down within the set temperature range. Then, manually rotate the screw 6 to fit the puncture site. The patient's comfort level can be assessed by asking them. A pressure sensor can also be added to the pressing part 5 for better pressure control. However, in reality, each patient's perception of pressure is different; therefore, asking the patient about their comfort level is a better approach.

[0062] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0063] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0064] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A radial artery compression hemostasis device, characterized in that: Includes a connecting ring for attaching the hemostatic device to the limb requiring hemostasis; The presser is mounted on the connecting ring and applies pressure to the puncture site. The presser includes an observation chamber, a pressing element, and an operating element. The observation chamber is located around the pressing element and is transparent. The operating element controls the pressing element to apply pressure to the puncture site. A semiconductor cooling plate provides heat or cold to the pressing component to change its temperature. The power supply provides power to the semiconductor cooling plate; A temperature sensor is electrically connected to a power source and maintains contact with the pressing component to measure the temperature of the pressing component in real time. The controller controls the power supply switch based on feedback from the temperature sensor and the set temperature. The monitor displays the temperature. The observation chamber wall is provided with a first conductive element and a second conductive element. One electrode of the power supply is connected to the first conductive element, and the other electrode of the power supply is connected to the second conductive element. One end of the semiconductor cooling plate is in sliding contact with the first conductive element to maintain electrical connection, and the other end of the semiconductor cooling plate is in sliding contact with the second conductive element to maintain electrical connection. The semiconductor cooling plate is attached to the pressing element and can move synchronously. The controller also includes a control component used to switch the connection between the positive and negative terminals of the power supply and the semiconductor cooling plate, changing the direction of current flow, ultimately causing the cold and hot ends of the semiconductor cooling plate to switch functions, i.e., the cold end generates heat and the hot end cools. The control component includes a first contact a, a first contact b, a first contact c, a second contact a, a second contact b, a second contact c, a control switch, a first switching element, and a second switching element. The first switching element has a first contact portion a, a first contact portion b, and a first contact portion c, and the second switching element has a second contact portion a, a second contact portion b, and a second contact portion c. The first and second switching elements are connected as a whole by an insulating component, specifically an insulating element. The control switch includes a rotating shaft, a translation push block, a limit block, a control rod, a limit ring, and an elastic element. A groove is formed on the controller, and the translation push block moves within the groove. One end of the control rod is rotatably connected to the translation push block, and the rotating shaft is fixed in the middle of the control rod. The limit ring is fixed to the inner wall of the controller, and one end of the rotating shaft extends into the limit ring. The rotating shaft can rotate relative to the limit ring and move along the length direction of the limit ring, which is perpendicular to the extension direction of the groove. The elastic element is a V-shaped metal structure, and its bottom is fixed to the inner wall of the controller housing. It can rotate relative to its bottom on both sides due to its deformation capacity. The upper end of the elastic element abuts against an insulating plate. Two guide rods pass through the insulating plate and are fixed to the controller housing. First contact a and first contact b are two contacts branching off from one end of the wire connecting the semiconductor cooling plate; second contact a and second contact b are two contacts branching off from the other end of the wire connecting the semiconductor cooling plate; first contact c is a contact on the wire connecting one electrode of the power supply, and second contact c is a contact on the wire connecting the other electrode of the power supply.

2. The radial artery compression hemostasis device according to claim 1, characterized in that: The operating component includes a screw and a slider. The screw is threadedly connected to the observation chamber, the screw is rotatably connected to the slider, and the slider is slidably engaged with the observation chamber.

3. The radial artery compression hemostasis device according to claim 2, characterized in that: The slider is made of a material with good thermal conductivity and is located between the pressing element and the semiconductor cooling plate.

4. The radial artery compression hemostasis device according to claim 1, characterized in that: The connecting ring has a power slot for placing a power source, which is a storage battery or a dry cell battery.

5. The radial artery compression hemostasis device according to claim 4, characterized in that: The battery slot has notches at both ends to facilitate battery removal.

6. The radial artery compression hemostasis device according to claim 1, characterized in that: The connecting ring has an enlarged fitting portion on the side opposite to the presser.

7. The radial artery compression hemostasis device according to claim 1, characterized in that: An adhesive portion is formed on the pressing element, and release paper is covered on the adhesive portion.

8. The radial artery compression hemostasis device according to claim 7, characterized in that: The adhesive part is detachably mounted on the pressing part.

9. A radial artery compression hemostasis device according to claim 8, characterized in that: The adhesive part has a connecting piece, and the connecting piece is fixed to the pressing member in an intermittent connection manner.

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