Hemostasis assembly for cold compress after vein blood sampling

Abstract

The invention relates to the technical field of medical instruments, in particular to a hemostasis assembly for cold compress after vein blood sampling, which comprises a pressing block, a pressing rod for adjusting pressing force is arranged at the center of the pressing block, a storage cavity for storing a cold source is arranged in the pressing block, and the storage cavity is annularly arranged by taking the pressing rod as the center; the center of the storage cavity communicates with a pressing cavity, the pressing rod is located in the pressing cavity, and the periphery of the pressing cavity communicates with a plurality of exchange pipes located below the storage cavity. A temperature adjusting assembly is further arranged in the pressing block, the temperature adjusting assembly comprises an adjusting cavity, a heat exchange agent with the volume changing based on the skin temperature is arranged in the adjusting cavity, and a sealing plate used for adjusting the exchange pipe to communicate with the storage cavity is arranged above the adjusting cavity; according to the temperature change between a patient and a cold source, the frostbite risk is reduced, and the hemostasis effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a hemostatic component used for cold compress after venous blood sampling. Background Art

[0002] After venous blood sampling, pressure is often used to stop bleeding, but blood sampling punctures the skin surface and internal veins at the same time, and simply pressing may cause hematoma. Cold compresses can shrink blood vessels to reduce continued blood seepage. At the same time, cold compresses can reduce the sensitivity of nerve endings, relieve pain, and shrink surrounding tissues to reduce the formation of hematomas.

[0003] However, direct contact of a cold source such as ice cubes or a cold towel with the skin through cold compresses, or long cold compresses, may cause frostbite on the skin, especially for people with sensitive skin or poor blood circulation, who may suffer from bleeding symptoms. Therefore, direct long-term contact of the cold source with the skin should be avoided during cold compresses. Therefore, the present invention provides a hemostatic component for cold compresses after venous blood sampling, which is used to reduce the risk of frostbite according to the temperature change between the patient and the cold source, and ensure the hemostatic effect. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a hemostatic component for cold compress after venous blood collection, which is used to reduce the risk of frostbite and ensure the hemostatic effect according to the temperature change between the patient and the cold source.

[0005] In order to achieve the above-mentioned object, the technical scheme of the present invention is as follows: a hemostatic component for cold compress after venous blood sampling, comprising a pressing block, a pressing rod for adjusting the pressing force is provided at the center of the pressing block, a storage cavity for storing a cold source is provided in the pressing block, and the storage cavity is arranged in a ring shape with the pressing rod as the center; The center of the storage cavity is connected to a pressing cavity, the pressing rod is located in the pressing cavity, and the pressing cavity is connected to a plurality of exchange tubes around it, and the exchange tubes are located below the storage cavity; A temperature regulating component is also provided in the pressing block, and the temperature regulating component includes a regulating cavity, in which a heat exchanger whose volume changes based on the skin temperature is provided, and a closing plate for regulating the exchange tube to communicate with the storage cavity is provided above the regulating cavity.

[0006] The technical principle of the above scheme is as follows: First, based on the position of the patient's blood collection site, press the pressing rod at the center of the pressing block against the blood collection site and adjust the basic pressing force. Then, the pressing block is attached to the patient's skin as a whole with medical tape, and the temperature of the patient's skin is measured by adjusting the heat exchanger in the cavity to control the connection between the cold source pre-stored in the storage cavity and the exchange tube, thereby achieving cold compress temperature regulation.

[0007] The above scheme has the following beneficial effects: 1. Compared with the prior art, this solution predicts the patient's skin temperature through a heat exchanger, and then through the connectivity between the storage chamber and the exchange tube, it can reduce the cold stimulation to the patient due to excessive temperature difference when the device is just used, thereby improving the patient's comfort.

[0008] 2. In this solution, during the cold compress process, the higher the patient's skin temperature is, the greater the temperature difference between the patient's skin temperature and the cold source is. The internal channel is blocked by controlling the closing plate to reduce the instantaneous injection of cold air to reduce the irritation to the patient's skin and reduce the risk of frostbite.

[0009] 3. In this solution, during continuous use, the closure of the initial pressing plate is utilized to slow down the degree of cold air release, so as to achieve the effect of slowly releasing cold air, achieve long-term cold compress, and facilitate hemostasis.

[0010] Furthermore, a rotating chamber is opened in the pressing block, the rotating chamber is located between the storage chamber and the exchange tube, and the closing plate is located in the rotating chamber; The number of the regulating chambers corresponds to that of the storage chambers. The temperature regulating assembly further includes a plurality of sliders and a plurality of connecting pipes. The sliders are slidably matched with the regulating chambers. The rotating chamber is connected with the storage chamber and the exchange pipe through the connecting pipes. One end of the closing plate is hinged to the slider, and the other end of the closing plate is hinged to the side of the rotating chamber away from the regulating chamber; when the closing plate moves to the highest point, the closing plate abuts against the connecting pipe at the bottom of the storage chamber; when the closing plate moves to the lowest point, the closing plate abuts against the connecting pipe at the top of the exchange tube.

[0011] Beneficial effect: The heat exchanger absorbs heat and evaporates, thereby increasing its own volume to push the slider to move, so that the closing plate moves to the side close to the storage cavity, thereby reducing the cold air exchange channel of the storage cavity. The cold air in the storage cavity can only enter the air duct along the pressing cavity to slow down the heat rise rate inside the air duct, thereby reducing the cold stimulation to the skin when it is first used.

[0012] Furthermore, a plurality of cover plates are clamped on the pressing block, and the positions of the cover plates correspond to those of the storage chambers.

[0013] Beneficial effect: by opening and closing the cover plate, it is convenient to open the storage cavity and place the cold source in advance, which is convenient for use.

[0014] Furthermore, the bottom of the pressing block is arc-shaped, and a plug is clamped on the top of the pressing block.

[0015] Beneficial effect: The concave space formed by the pressing block allows the pressing block to be adsorbed on the patient's body surface, making it easy to flexibly adjust the position of the device, thereby facilitating the pressing rod to press and contact with the blood collection site.

[0016] Furthermore, transparent plates are fixedly connected to the top and bottom of the pressing block, and the transparent plates are arranged in a ring shape with the pressing rod as the center.

[0017] Beneficial effects: The transparent plate makes it easy to observe the position of the hemostasis during the pressing operation, and achieves accurate positioning, so as to determine the contact between the pressing rod and the skin at the blood collection site and adjust the pressing length, so as to maintain an appropriate pressing force.

[0018] Furthermore, the exchange tubes in the pressing block are arranged in a circle shape.

[0019] Beneficial effect: The exchange tubes are arranged in a zigzag pattern to increase the contact area between the exchange tubes and the skin, so as to achieve uniform cooling treatment at the blood collection site.

[0020] Furthermore, the pressing rod is rotatably matched with a nut block, and the nut block is threadedly connected to the center of the pressing block.

[0021] Beneficial effect: The nut block and the pressing block are connected by threads, so as to maintain the pressing depth of the pressing rod during the contact process with the blood collection site, so as to form a stable pressing to stop bleeding.

[0022] Furthermore, a moving cavity is opened at the center of the nut block, a partition is slidably fitted in the moving cavity, the partition is fixedly connected to the pressing rod, and a spring is provided between the partition and the top of the nut block; The temperature regulating assembly also includes an air duct, which is connected to a pressure relief valve. One end of the air duct is located on the side of the slider close to the heat exchanger, and the other end of the air duct passes through the closing plate, the pressing block and the pressing rod in sequence to be connected to the movable cavity, and the other end of the air duct is located below the partition.

[0023] Beneficial effect: When the heat exchanger absorbs heat and evaporates, the volume of the heat exchanger in the regulating chamber will gradually increase. When the release condition of the pressure relief valve is reached, the pressing rod has been pressed for a period of time and the skin temperature has dropped. The heat exchanger increases the pressure inside the movable chamber to push the partition to move upward, thereby reducing the initial pressing depth of the blood collection point, reducing the pressing force, and reducing the occurrence of excessive pressing to stop bleeding.

[0024] Furthermore, the pressing block is in a disc shape, and the regulating cavity is arranged in a ring shape with the exchange tube as the center.

[0025] Beneficial effect: Since the pressing block is disc-shaped, during the contact process of the pressing block, the adjustment cavity will first contact the skin to determine the patient's surface skin temperature at the current time for adjustment.

[0026] Furthermore, a side of the storage cavity close to the pressing rod is higher than a side of the storage cavity away from the pressing rod.

[0027] Beneficial effect: The height difference formed by the storage cavity facilitates the melting of the cold source or the condensation of water droplets from the surrounding air by the cold source, so that the water droplets converge to the side away from the pressing rod, reducing the probability of water flow contacting the blood collection site.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric diagram of an embodiment of a hemostatic component for cold compress after venous blood sampling according to the present invention; Figure 2 A bottom view of an embodiment of a hemostatic component for cold compress after venous blood sampling according to the present invention; Figure 3 for Figure 2 AA section diagram of ; Figure 4 for Figure 3 An enlarged schematic diagram of a local B; Figure 5 for Figure 3 An enlarged schematic diagram of local C.

[0030] The figure marks in the drawings of the specification include: 1. pressing block; 11. transparent plate; 12. plug; 13. cover plate; 14. rotating chamber; 2. pressing rod; 21. nut block; 22. moving chamber; 23. partition; 3. adjusting chamber; 31. heat exchanger; 32. slider; 4. storage chamber; 5. exchange tube; 6. pressing chamber; 7. closing plate; 71. connecting tube; 72. air duct. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The following is further described in detail through specific implementation methods: As attached Figures 1 to 5 As shown: A hemostatic component for cold compress after venous blood sampling, including a disc-shaped pressing block 1. In this embodiment, the pressing block 1 is made of a deformable rubber layer, the bottom of the pressing block 1 is arc-shaped, and a plug 12 is clamped on the top of the pressing block 1. A pressing rod 2 for adjusting the pressing force is provided at the center of the pressing block 1, and transparent plates 11 are welded on the top and bottom of the pressing block 1, and the transparent plates 11 are arranged in a ring with the pressing rod 2 as the center.

[0035] The pressing rod 2 is rotatably matched with a nut block 21 on the outside, and the nut block 21 is threadedly connected to the center of the pressing block 1; a movable cavity 22 is opened at the center of the nut block 21, and a partition 23 is slidably matched in the movable cavity 22. The partition 23 and the pressing rod 2 are integrally formed, and a spring (not shown in the figure) is provided between the partition 23 and the top of the nut block 21.

[0036] A storage chamber 4 for storing a cold source (in this embodiment, the cold source is ice cubes) is provided in the pressing block 1. The storage chamber 4 is arranged in a ring shape with the pressing rod 2 as the center. The side of the storage chamber 4 close to the pressing rod 2 is higher than the side of the storage chamber 4 away from the pressing rod 2. A plurality of cover plates 13 are clamped on the pressing block 1, and the positions of the cover plates 13 and the storage chamber 4 correspond. A pressing chamber 6 is connected at the center of the storage chamber 4. The pressing rod 2 is located in the pressing chamber 6. A plurality of exchange tubes 5 are connected around the pressing chamber 6. The exchange tubes 5 are located below the storage chamber 4. The exchange tubes 5 in the pressing block 1 are arranged in a circular shape.

[0037] A temperature regulating component is also provided in the pressing block 1, and the temperature regulating component includes a regulating chamber 3, which is arranged in a ring shape with the exchange tube 5 as the center; a heat exchanger 31 whose volume changes based on the skin temperature is provided in the regulating chamber 3. In this embodiment, the heat exchanger 31 is mercury, and a closing plate 7 is provided above the regulating chamber 3 for regulating the exchange tube 5 to communicate with the storage chamber 4.

[0038] A rotating chamber 14 is opened in the pressing block 1, and the rotating chamber 14 is located between the storage chamber 4 and the exchange tube 5, and the closing plate 7 is located in the rotating chamber 14; the number of the regulating chambers 3 corresponds to that of the storage chambers 4, and the temperature regulating assembly also includes a plurality of sliders 32 and a plurality of connecting tubes 71, the sliders 32 slide in cooperation with the regulating chamber 3, and the rotating chamber 14 is connected with the storage chamber 4 and the exchange tube 5 through the connecting tube 71; one end of the closing plate 7 is hinged to the slider 32, and the other end of the closing plate 7 is hinged to the side of the rotating chamber 14 away from the regulating chamber 3; when the closing plate 7 moves to the highest point, the closing plate 7 abuts against the connecting tube 71 at the bottom of the storage chamber 4; when the closing plate 7 moves to the lowest point, the closing plate 7 abuts against the connecting tube 71 at the top of the exchange tube 5.

[0039] The temperature adjustment assembly also includes an air guide pipe 72, in which a pressure relief valve (not shown) is connected. One end of the air guide pipe 72 is located on the side of the slider 32 close to the heat exchanger 31, and the other end of the air guide pipe 72 passes through the closing plate 7, the pressing block 1 and the pressing rod 2 to communicate with the moving chamber 22, and the other end of the air guide pipe 72 is located below the partition 23. The specific implementation process is as follows: In this embodiment, ice cubes are used as the cold source for illustration. First, the nurse or the patient places the pre-prepared ice cubes into the storage chamber 4 by opening the cover plate 13 .

[0040] Based on the position of the patient's blood collection site, the nurse or patient uses the transparent plate 11 set on the pressing block 1 to observe the position of the hemostasis site during the pressing operation. Then, through the concave space formed by the pressing block 1, when the pressing block 1 contacts the patient's skin, the air at the bottom of the pressing block 1 is squeezed out. When the atmospheric pressure difference is formed inside and outside the pressing block 1, the pressing block 1 is adsorbed on the patient's body surface, which is convenient for flexible adjustment of the position of the device, so that the pressing rod 2 is convenient for pressing and contacting the blood collection site, and then the device is stably bonded by medical tape. The plug 12 is opened to balance the air pressure difference inside and outside the pressing block 1, so as to facilitate the removal of the device. Then, based on the threaded connection between the nut block 21 and the pressing block 1, the initial pressing depth of the pressing rod 2 is adjusted, and the position of the pressing rod 2 is maintained by the support of the spring.

[0041] At the same time, since the pressing block 1 is disc-shaped, during the contact process of the pressing block 1, the regulating chamber 3 will first contact the skin to determine the current patient's surface skin temperature for adjustment. When the patient's skin temperature is higher, the volume of the heat exchanger 31 evaporates, the greater the rise of the sealing plate 7, and the greater the degree of blockage of the connecting pipe 71; it also means that the greater the difference between the patient's skin temperature and the temperature of the cold source, the stimulation of the patient's skin is reduced by reducing the instantaneous injection of cold air.

[0042] When the heat exchanger 31 absorbs heat and evaporates, the volume of the heat exchanger 31 in the regulating chamber 3 will gradually increase. When the release condition of the pressure relief valve is reached, the pressing rod 2 has been pressed for a period of time and the skin temperature has dropped. At this time, the flow rate in the blood vessel is slow and the pressing force should be reduced. The heat exchanger 31 is discharged into the movable chamber 22 through the air guide tube 72. The pressure inside the movable chamber 22 increases to push the partition 23 to move upward, so as to reduce the initial pressing depth of the blood collection site, reduce the pressing force, and reduce the occurrence of excessive pressing to stop bleeding. At the same time, due to the limitation of the pressure relief valve, the pressure inside the movable chamber 22 increases to push the partition 23 to move upward for a short distance, which is consistent with the coagulation of the wound at the blood collection site, so as to improve the hemostasis effect.

[0043] During the continuous cold compress process, the height difference formed by the storage chamber 4 facilitates the melting of the cold source or the condensation of water droplets from the surrounding air by the cold source, so that the water droplets converge to the side away from the pressing rod 2, reducing the probability of the water flow contacting the blood collection site. At the same time, due to the characteristics of cold air sinking and hot air flowing upward, when the closing plate 7 does not block the connecting pipe 71 of the storage chamber 4, the cold air in the storage chamber 4 can more easily enter the exchange tube 5 for cold compress treatment.

[0044] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A hemostatic component for cold compress after venous blood collection, characterized in that: It comprises a pressing block (1), wherein a pressing rod (2) for adjusting the pressing force is provided at the center of the pressing block (1), a storage cavity (4) for storing a cold source is provided inside the pressing block (1), and the storage cavity (4) is arranged in a ring shape with the pressing rod (2) as the center; The storage chamber (4) is connected to a pressing chamber (6) at its center, the pressing rod (2) is located in the pressing chamber (6), and the pressing chamber (6) is connected to a plurality of exchange tubes (5) around it, and the exchange tubes (5) are located below the storage chamber (4); A temperature regulating component is also provided in the pressing block (1), the temperature regulating component comprising a regulating chamber (3), a heat exchanger (31) whose volume changes based on the skin temperature is provided in the regulating chamber (3), and a sealing plate (7) for regulating the exchange tube (5) to communicate with the storage chamber (4) is provided above the regulating chamber (3).

2. The hemostatic component for cold compress after venous blood sampling according to claim 1, characterized in that: A rotating chamber (14) is formed in the pressing block (1), the rotating chamber (14) is located between the storage chamber (4) and the exchange tube (5), and the closing plate (7) is located in the rotating chamber (14); The number of the regulating chambers (3) corresponds to that of the storage chambers (4), and the temperature regulating assembly further comprises a plurality of sliders (32) and a plurality of connecting pipes (71). The sliders (32) are slidably matched with the regulating chambers (3), and the rotating chamber (14) is connected to the storage chamber (4) and the exchange pipe (5) via the connecting pipes (71); One end of the closing plate (7) is hinged to the slider (32), and the other end of the closing plate (7) is hinged to a side of the rotating chamber (14) away from the regulating chamber (3); when the closing plate (7) moves to the highest point, the closing plate (7) abuts against the connecting pipe (71) at the bottom of the storage chamber (4); when the closing plate (7) moves to the lowest point, the closing plate (7) abuts against the connecting pipe (71) at the top of the exchange tube (5).

3. The hemostatic component for cold compress after venous blood sampling according to claim 2, characterized in that: A plurality of cover plates (13) are clamped onto the pressing block (1), and the positions of the cover plates (13) correspond to those of the storage chamber (4).

4. The hemostatic component for cold compress after venous blood sampling according to claim 3, characterized in that: The bottom of the pressing block (1) is arc-shaped, and a plug (12) is clamped on the top of the pressing block (1).

5. The hemostatic component for cold compress after venous blood sampling according to claim 4, characterized in that: The top and bottom of the pressing block (1) are fixedly connected with transparent plates (11), and the transparent plates (11) are arranged in a ring shape with the pressing rod (2) as the center.

6. The hemostatic component for cold compress after venous blood sampling according to claim 5, characterized in that: The exchange tubes (5) in the pressing block (1) are arranged in a circle shape.

7. The hemostatic component for cold compress after venous blood sampling according to claim 6, characterized in that: The pressing rod (2) is externally rotatably matched with a nut block (21), and the nut block (21) is threadedly connected to the center of the pressing block (1).

8. The hemostatic component for cold compress after venous blood sampling according to claim 7, characterized in that: A moving cavity (22) is formed at the center of the nut block (21), a partition (23) is slidably fitted in the moving cavity (22), the partition (23) is fixedly connected to the pressing rod (2), and a spring is provided between the partition (23) and the top of the nut block (21); The temperature regulating assembly further comprises an air guide pipe (72), the air guide pipe (72) being connected to a pressure relief valve, one end of the air guide pipe (72) being located on a side of the slider (32) close to the heat exchanger (31), the other end of the air guide pipe (72) passing through the closing plate (7), the pressing block (1) and the pressing rod (2) in sequence to be connected to the movable chamber (22), and the other end of the air guide pipe (72) being located below the partition plate (23).

9. The hemostatic component for cold compress after venous blood sampling according to claim 8, characterized in that: The pressing block (1) is in the shape of a disk, and the regulating chamber (3) is arranged in a ring shape with the exchange tube (5) as the center.

10. The hemostatic component for cold compress after venous blood sampling according to claim 9, characterized in that: A side of the storage chamber (4) close to the pressing rod (2) is higher than a side of the storage chamber (4) away from the pressing rod (2).

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