Wearable radial artery compression hemostat

Abstract

The utility model discloses a kind of wearable radial artery compression hemostat, specifically related to radial artery hemostasis technical field, including the bandage of being put on the hand of patient, the bandage inside is equipped with multiple air bags, the air bag is equipped with film pressure sensor with the side away from bandage, every air bag is communicated with trachea, multiple trachea one end is communicated with the inflation and deflation control box for the inflation and deflation of air bag, the inflation and deflation control box top is equipped with the controller for receiving the pressure value monitored by film pressure sensor.The utility model is automatically inflated by setting extrusion plate group that can automatically extrude inflatable ball, automatically deflated assembly that can be automatically deflated is set to realize the automatic decompression deflation to puncture point, entire operation process does not need artificial control, not only simplify operation procedure, but also can accurately control the pressure change in radial artery compression hemostasis each process.

Description

Technical Field

[0001] This utility model relates to the field of radial artery hemostasis technology, and more specifically to a wearable radial artery compression hemostatic device. Background Technology

[0002] The radial artery is one of the two main branches of the brachial artery (upper arm artery) at the elbow crease; the other branch is the ulnar artery. The radial artery is one of the main blood supply arteries to the forearm. Its superficial location makes it easily palpable, and therefore it is frequently chosen as the access route in medical procedures such as punctures and interventional surgeries. Especially in the treatment of coronary artery disease, radial artery puncture is primarily used for percutaneous coronary intervention (PCI) and diagnostic coronary angiography. Its core function is to provide a minimally invasive and safe vascular access route, facilitating subsequent procedures by the physician.

[0003] Bandaging after radial artery puncture has always been a challenge for medical staff. Various existing hemostatic devices often fail to achieve adequate hemostasis due to the condition of the puncture site or the blood vessel itself, and are prone to compression complications (such as blisters, skin ulceration, and device displacement). Too tight a device can cause skin ulceration and block blood supply to distal vessels; too loose a device fails to achieve hemostasis. Furthermore, the pressure value is difficult to control, lacking quantifiable values ​​and thus challenging to manage.

[0004] Although a combination of a membrane pressure sensor and a balloon has been used clinically to compress and stop bleeding at the radial artery puncture site, as shown in prior art publication CN213430344U, this method can quantify the pressure value for hemostasis. However, radial artery puncture requires partial decompression every 2 hours, which requires manual timing and deflation. The deflation amount also requires constant monitoring of the membrane pressure sensor value and control based on this change. The inflation process requires manual pushing of the syringe or squeezing of the inflation balloon, and the inflation amount also requires constant monitoring of the membrane pressure sensor value and control based on this change. This operation is relatively cumbersome, and the inflation and deflation amounts are easily affected by human factors, resulting in errors. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a wearable radial artery compression hemostat. It achieves automatic inflation by setting a compression plate assembly that can automatically squeeze the inflation ball, and achieves automatic decompression and deflation of the puncture point by setting a deflation component that can automatically depressurize. The entire operation process does not require manual control, which not only simplifies the operation steps, but also enables precise control of pressure changes in each process of radial artery compression hemostasis, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wearable radial artery compression hemostat, comprising a wristband worn on the patient's hand, with multiple airbags on the inner side of the wristband, and a thin-film pressure sensor on the side of each airbag away from the wristband. After the airbags are inflated, they compress the radial artery puncture site to stop bleeding and squeeze the thin-film pressure sensor to measure the pressure at the puncture point. Each airbag is connected to an air tube, and one end of each air tube is connected to an inflation / deflation control box for inflating and deflating the airbags. The top of the inflation / deflation control box is equipped with a controller for receiving the pressure values ​​monitored by the thin-film pressure sensor.

[0007] The inflation / deflation control box includes a box body. Inside the box body, on both sides, there are deflation components and inflation balls controlled by a controller. On both sides of the inflation balls, there are compression plates for squeezing the inflation balls. After being squeezed by the compression plates, the inflation balls send air into the airbag.

[0008] The venting assembly includes a venting pipe connected to each air tube. A squeezing head is provided on one side of the venting pipe for squeezing the venting pipe. When the squeezing head does not squeeze the venting pipe, the gas in the airbag is released sequentially through the air tube and the venting pipe.

[0009] In a preferred embodiment, two parallel partitions are fixed inside the box body. The two partitions divide the internal cavity of the box body into a left cavity, a middle cavity, and a right cavity from left to right. The deflation component is located in the left cavity, the inflatable ball is located in the right cavity, one end of the air tube extends through one partition into the middle cavity, and one end of the inflatable ball extends through the other partition into the middle cavity.

[0010] The vent pipe is located in the left cavity, and a vertical plate is fixed in the left cavity. Multiple extrusion rods are arranged side by side through the vertical plate. One end of each extrusion rod is fixed to an extrusion head, and the other end of each extrusion rod is equipped with an electromagnet. The electromagnet is fixed to the side wall of the box. When the electromagnet is energized, it attracts the extrusion rod. A spring is sleeved on the outer end of each extrusion rod. One end of the spring is fixed to the vertical plate, and the other end of the spring is fixed to the extrusion head. When the electromagnet attracts the extrusion rod, the extrusion head compresses the spring and does not extrude the vent pipe.

[0011] In a preferred embodiment, the extrusion plate assembly includes two extrusion plates respectively disposed on both sides of the inflatable ball. The bottom ends of the two extrusion plates are connected to reciprocating screws by threads. The two reciprocating screws rotate to drive the extrusion plates to move linearly in opposite directions. The bottom ends of the extrusion plates contact the inner wall of the box.

[0012] In a preferred embodiment, two reciprocating lead screws are fixed, one end of which is movably connected to the inner wall of the box via a bearing, and the other end of which is equipped with a bevel gear set, which is driven to rotate by a motor, which is mounted on the inner wall of the box.

[0013] In a preferred embodiment, the top of the vent pipe is open, and the top of the vent pipe passes through the top of the box and communicates with the outside.

[0014] In a preferred embodiment, the outer ends of multiple tracheas are fitted with protective sleeves to protect the tracheas from the outside. The protective sleeves can also bind the multiple tracheas to prevent them from getting tangled together, which helps to keep the pipeline neat.

[0015] In a preferred embodiment, the hand strap has a through hole in the middle for the patient's thumb to pass through, and Velcro is sewn on both sides of the hand strap, and the two sides of the hand strap are glued together by the Velcro.

[0016] In a preferred embodiment, a charging interface for charging the controller and motor is installed on the side wall of the housing.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] This invention can not only monitor the pressure applied to the radial artery puncture site by the airbag in real time through a thin-film pressure sensor, but also control the deflation component to release part of the gas in the airbag in a timed manner through the controller to perform a pressure relief operation. At the same time, the pressure change caused by the gas in the airbag can be monitored in real time by the thin-film pressure sensor, so that the controller can automatically stop the deflation operation after the pressure decreases to the set value.

[0019] Similarly, the inflation process is also controlled by the controller to squeeze the inflation ball with the compression plate group. During the inflation process, the membrane pressure sensor can also monitor the pressure changes at the radial artery puncture point in real time, and can automatically stop the inflation operation when the pressure increases to the set value. The entire inflation and deflation process does not require manual control, which helps to reduce the workload of medical staff and can also accurately control the inflation and deflation volume and pressure changes during the inflation and deflation process. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention worn on a patient's hand;

[0021] Figure 2 This is a back view of the present invention worn on a patient's hand.

[0022] Figure 3 This is a schematic diagram of the hand strap of this utility model after it has been unfolded.

[0023] Figure 4 This is a schematic diagram of the hand strap, airbag, and thin-film pressure sensor of this utility model after being unfolded.

[0024] Figure 5 This is a schematic diagram of the inflation / deflation control box and controller of this utility model;

[0025] Figure 6 This is a schematic diagram of the inflation / deflation control box and deflation assembly of this utility model;

[0026] Figure 7 This is a schematic diagram of the inflation / deflation control box and the extrusion plate assembly of this utility model;

[0027] The attached figures are labeled as follows:

[0028] 1. Hand straps; 2. Airbag; 3. Air tube; 4. Inflation / depression control box; 5. Controller; 6. Protective sleeve; 7. Thin-film pressure sensor; 8. Velcro;

[0029] 41. Box body; 42. Divider; 43. Inflatable ball; 44. Compression plate assembly; 45. Vertical plate; 46. Deflator assembly;

[0030] 441. Extrusion plate; 442. Reciprocating lead screw; 443. Bevel gear set; 444. Motor;

[0031] 461. Vent pipe; 462. Extrusion head; 463. Extrusion rod; 464. Electromagnet; 465. Spring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Refer to the instruction manual appendix Figure 1-3 This utility model provides a wearable radial artery compression hemostat, including a wristband 1 that is worn on the patient's hand. The wristband 1 has a through hole in the middle for the patient's thumb to pass through. Velcro 8 is sewn onto both sides of the wristband 1, and the two sides of the wristband 1 are glued together by the Velcro 8 so that the wristband 1 can be... Figure 1 , Figure 2 The image shown is of the patient's hand wrapped in clothing.

[0034] Multiple airbags 2 are provided inside the wrist strap 1. A thin-film pressure sensor 7 is located on the side of each airbag 2 away from the wrist strap 1. This thin-film pressure sensor 7 can be a flexible pressure sensor of model MD30-60. This flexible pressure sensor is made by one-time patching of a novel nano-pressure-sensitive material with a comfortable Young's modulus ultra-thin film substrate, possessing both waterproof and pressure-sensitive functions. When the sensor senses external pressure, its resistance changes. A simple circuit allows the sensor to convert the pressure signal into an electrical signal of corresponding intensity after sensing the pressure change. Therefore, when the airbags 2 inflate, they not only compress and stop bleeding at the radial artery puncture site but also squeeze the thin-film pressure sensor 7, causing a change in its resistance, thereby measuring the pressure at the puncture point. The pressure change monitored by the thin-film pressure sensor 7 allows for precise control of the pressure applied to the radial artery puncture point. The positional relationship between the wrist strap 1, airbags 2, and thin-film pressure sensor 7 is as follows: Figure 3 As shown, in actual use, the airbag 2 needs to be aligned with the radial artery puncture point, and then a layer of gauze should be placed over the puncture site to isolate the membrane pressure sensor 7, so as to avoid direct contact between the membrane pressure sensor 7 and the patient's skin.

[0035] In order to facilitate the inflation and deflation of airbag 2, such as Figure 5 As shown, each airbag 2 is connected to an air tube 3. The outer ends of multiple air tubes 3 are covered with protective sleeves 6 to protect the air tubes 3 from the outside. The protective sleeves 6 can also bind the multiple air tubes 3 to prevent them from getting tangled together, which helps to keep the pipeline neat.

[0036] Multiple air tubes 3 are connected to an inflation / deflation control box 4 for inflating and deflating the airbag 2. The top of the inflation / deflation control box 4 is equipped with a controller 5 for receiving the pressure value monitored by the thin-film pressure sensor 7 (the controller 5 can be a TFT LCD display controller series of model ML86240, which supports both analog and digital inputs and has a built-in timing controller that can be directly connected to various LCDs). Medical staff can flexibly set the pressure value required by different patients through the controller 5, and can also set the pressure relief interval (usually 2 hours) and the pressure value after pressure relief to ensure precise control of pressure changes during the inflation / deflation process.

[0037] In this embodiment, the structure of the inflation / deflation control box 4 is as follows: Figure 6 and Figure 7As shown: It includes a box body 41, inside which are fixed two parallel partitions 42, which divide the internal cavity of the box body 41 into a left cavity, a middle cavity and a right cavity from left to right; an inflatable ball 43 controlled by a controller 5 is provided on one side of the inside of the box body 41, the inflatable ball 43 is located in the right cavity, one end of the air tube 3 extends into the middle cavity through one partition 42, and one end of the inflatable ball 43 extends into the middle cavity through the other partition 42;

[0038] The inflatable ball 43 has compression plate assemblies 44 on both sides for compressing the inflatable ball 43. Specifically, the compression plate assembly 44 includes two compression plates 441 respectively located on both sides of the inflatable ball 43. The bottom ends of both compression plates 441 are threaded to reciprocating screws 442. The bottom ends of the compression plates 441 contact the inner wall of the box body 41. The two reciprocating screws 442 are fixed, with one end of one reciprocating screw 442 movably connected to the inner wall of the box body 41 via a bearing, and the other end of the reciprocating screw 442 is equipped with a bevel gear set 443. The bevel gear set 443 is driven to rotate by a motor 444 (which can be an RF-300 series motor, such as RF-300CA) mounted on the inner wall of the box body 41. After the motor 444 drives the bevel gear set 443 to rotate, causing the two reciprocating screws 442 to rotate, the two reciprocating screws... The lead screw 442 rotates and drives the compression plate 441 to move towards the center and to both sides, so as to repeatedly compress the inflatable ball 43. After being compressed, the inflatable ball 43 sends air into the central cavity. The air is transported through the central cavity to the inside of the trachea 3, and then input into the airbag 2 through the trachea 3. After the airbag 2 is inflated, it compresses the radial artery puncture point to stop bleeding. At the same time, it also compresses the membrane pressure sensor 7. The membrane pressure sensor 7 detects the pressure change at the radial artery puncture point and transmits the pressure change to the controller 5 in real time. When the pressure value increases to the value set in advance by the medical staff, the controller 5 automatically controls the motor 444 to stop working and stops inflating the airbag 2. This is to accurately control the pressure value required for compression hemostasis and avoid the error caused by manual adjustment.

[0039] Because the radial artery puncture site needs to be loosened periodically for decompression, this invention also includes a venting assembly 46, controlled by the controller 5, on the other side of the housing 41. This venting assembly 46 is located within the left cavity, specifically as follows: Figure 6 and Figure 7As shown: The venting assembly 46 includes a venting pipe 461 connected to each air pipe 3. The top end of the venting pipe 461 is open, and the top end of the venting pipe 461 passes through the top of the box body 41 and communicates with the outside. A squeezing head 462 for squeezing the venting pipe 461 is provided on one side of the venting pipe 461. The venting pipe 461 is located in the left cavity, and a vertical plate 45 is fixed in the left cavity. Multiple squeezing rods 463 are arranged side by side through the vertical plate 45. One end of the squeezing rod 463 is fixed to the squeezing head 462, and the other end of the squeezing rod 463 is fixed to the squeezing head 462. An electromagnet 464 is provided at one end. The electromagnet 464 can be a suction cup electromagnet of model DSD1610. The electromagnet 464 is fixed to the side wall of the box 41. When the electromagnet 464 is energized, it attracts the extrusion rod 463. A spring 465 is fitted around the outer end of the extrusion rod 463. One end of the spring 465 is fixed to the vertical plate 45, and the other end is fixed to the extrusion head 462. When the electromagnet 464 attracts the extrusion rod 463, the extrusion head 462 compresses the spring 465 and does not extrude the vent pipe 461. This state is as follows: Figure 6 As shown, the gas in the airbag 2 can be released through the trachea 3 and the vent tube 461 to deflate. When the gas in the airbag 2 decreases, the pressure it applies to the radial artery puncture site will also decrease. Therefore, the thin-film pressure sensor 7 located on one side of the airbag 2 can monitor the change in this pressure value in real time. When the pressure value drops to the value preset by the medical staff, the controller 5 will automatically control the electromagnet 464 to de-energize so that it no longer attracts the squeezing rod 463. Then, the squeezing rod 463 will push the squeezing head 462 to squeeze the vent tube 461 under the elastic force of the compressed spring 465 to prevent the gas in the airbag 2 from continuing to leak out, so as to ensure that the pressure value after relaxation is the same as the value set by the medical staff.

[0040] The entire inflation and deflation process of this invention is simple to operate. Under the automatic control of the controller 5, it is also conducive to the precise control of pressure value changes during the compression hemostasis process, reducing human intervention and the impact of human error on pressure value adjustment.

[0041] In addition, this utility model also has a charging interface installed on the side wall of the box 41 for charging the controller 5 and the motor 444, so that it can be operated independently without connecting to a power cord, thereby further enhancing the convenience of use. Moreover, while controlling the deflation of the airbag 2, the controller 5 also sends a message to the nurse station, notifying the nurse in charge of the patient to observe in real time whether there is any blood seepage around the radial artery puncture site during the deflation process. If so, the controller 5 can be directly operated to stop the deflation and then control the compression plate assembly 44 to squeeze the inflation ball 43 to inflate the airbag 2, so as to prolong the compression time and ensure the hemostasis effect.

[0042] Meanwhile, to facilitate observation of any blood seepage at the puncture site, the hand strap 1 is made of soft white fabric, which contrasts sharply with the blood, allowing medical staff to observe the blood seepage in a timely manner and take appropriate measures.

[0043] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wearable radial artery compression hemostat, comprising a wristband (1) worn on a patient's hand, wherein the wristband (1) has a plurality of airbags (2) disposed on its inner side, and the airbags (2) and the side away from the wristband (1) are provided with thin-film pressure sensors (7), characterized in that: Each of the airbags (2) is connected to an air tube (3), and one end of the multiple air tubes (3) is connected to an inflation / deflation control box (4) for inflating and deflating the airbags (2). The top of the inflation / deflation control box (4) is provided with a controller (5) for receiving the pressure value monitored by the membrane pressure sensor (7). The inflation / deflation control box (4) includes a box body (41). Inside the box body (41), on both sides, there are deflation components (46) and inflation balls (43) controlled by a controller (5). On both sides of the inflation balls (43), there are compression plate groups (44) for squeezing the inflation balls (43). After being squeezed by the compression plate groups (44), the inflation balls (43) send air into the airbag (2). The venting assembly (46) includes a venting pipe (461) connected to each air pipe (3). A squeezing head (462) for squeezing the venting pipe (461) is provided on one side of the venting pipe (461). When the squeezing head (462) does not squeeze the venting pipe (461), the gas in the airbag (2) is discharged sequentially through the air pipe (3) and the venting pipe (461).

2. The wearable radial artery compression hemostat according to claim 1, characterized in that: The box (41) has two parallel partitions (42) fixed inside. The two partitions (42) divide the internal cavity of the box (41) into a left cavity, a middle cavity and a right cavity from left to right. The deflation assembly (46) is located in the left cavity, the inflatable ball (43) is located in the right cavity, one end of the air tube (3) passes through one partition (42) and extends into the middle cavity, and one end of the inflatable ball (43) passes through the other partition (42) and also extends into the middle cavity. The vent pipe (461) is located in the left cavity, and a vertical plate (45) is fixed in the left cavity. Multiple extrusion rods (463) are arranged side by side through the vertical plate (45). One end of the extrusion rod (463) is fixed to the extrusion head (462), and the other end of the extrusion rod (463) is equipped with an electromagnet (464). The electromagnet (464) is fixed on the side wall of the box body (41). When the electromagnet (464) is energized, it attracts the extrusion rod (463). A spring (465) is sleeved on the outer end of the extrusion rod (463). One end of the spring (465) is fixed to the vertical plate (45), and the other end of the spring (465) is fixed to the extrusion head (462). When the electromagnet (464) attracts the extrusion rod (463), the extrusion head (462) compresses the spring (465) and does not extrude the vent pipe (461).

3. The wearable radial artery compression hemostat according to claim 2, characterized in that: The extrusion plate assembly (44) includes two extrusion plates (441) respectively located on both sides of the inflatable ball (43). The bottom ends of the two extrusion plates (441) are connected to reciprocating screws (442) by screws. The two reciprocating screws (442) rotate to drive the extrusion plates (441) to move linearly in opposite directions. The bottom ends of the extrusion plates (441) are in contact with the inner wall of the box body (41).

4. A wearable radial artery compression hemostat according to claim 3, characterized in that: Two reciprocating lead screws (442) are fixed. One end of one reciprocating lead screw (442) is movably connected to the inner wall of the box (41) through a bearing. The other reciprocating lead screw (442) is equipped with a bevel gear set (443) at one end. The bevel gear set (443) is driven to rotate by a motor (444), which is mounted on the inner wall of the box (41).

5. A wearable radial artery compression hemostat according to claim 1, characterized in that: The top of the vent pipe (461) is open, and the top of the vent pipe (461) passes through the top of the box body (41) and communicates with the outside.

6. A wearable radial artery compression hemostat according to claim 1, characterized in that: Multiple tracheas (3) are covered with protective sleeves (6) to protect the tracheas (3) from the outside.

7. A wearable radial artery compression hemostat according to claim 1, characterized in that: The wrist strap (1) has a through hole in the middle for the patient's thumb to pass through, and Velcro (8) is sewn on both sides of the wrist strap (1). The two sides of the wrist strap (1) are glued together by the Velcro (8).

8. A wearable radial artery compression hemostat according to claim 4, characterized in that: The box (41) has a charging interface installed on its side wall for charging the controller (5) and the motor (444).

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