A fingertip capillary refill time monitoring device

Abstract

The utility model relates to medical instrument technical field, concretely is a fingertip capillary refill time monitoring device, including the casing, the casing bottom is equipped with a plurality of stand, the stand bottom is equipped with the base, is equipped with the placement seat on the base, the casing bottom is equipped with the electric push rod, the power output end of electric push rod penetrates the casing bottom and sets up towards the base direction, the power output end of electric push rod is equipped with the mounting bracket, be equipped with the pressing plate on the mounting bracket, be equipped with the pressure sensor between electric push rod and mounting bracket, the casing bottom is equipped with the optical sensor towards the placement seat, the casing one side is equipped with touch -control display screen, the inside of casing is equipped with integrated controller.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a device for monitoring the refill time of fingertip capillaries. Background Technology

[0002] Capillary refill time (CRT) is an important indicator for assessing peripheral circulation status and is widely used in clinical diagnosis and monitoring. Traditional CRT monitoring methods mainly rely on healthcare professionals manually pressing on the patient's finger and then observing the time it takes for the fingertip color to return to its original state. However, this method has the following problems: 1. Human error: Individual differences exist among medical staff in judging the pressure, duration, and color change of the compression, leading to inaccurate measurement results.

[0003] 2. Inefficient: The manual measurement process is cumbersome, requiring each measurement to be pressed and observed individually, which is extremely inefficient for monitoring a large number of patients.

[0004] 3. Lack of data recording: Traditional methods cannot record measurement data in real time, which is not conducive to subsequent analysis and research. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a fingertip capillary refill time monitoring device. The device uses an electric push rod to drive a pressure plate on the mounting bracket to press the finger on the placement seat. The pressure force is sent to the integrated controller through a pressure sensor to ensure that the pressure plate on the finger is maintained at 3-7N. During the pressing process, the device monitors the change in finger color through an optical sensor and sends the data to the integrated controller. Finally, the monitoring data is displayed on a touch screen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A device for monitoring the refill time of fingertip capillaries includes a housing, multiple columns at the bottom of the housing, a base at the bottom of each column, a placement seat on the base, an electric actuator at the bottom of the housing, a power output end of the electric actuator passing through the bottom of the housing and facing the base, a mounting bracket at the power output end of the electric actuator, a pressure plate on the mounting bracket, a pressure sensor between the electric actuator and the mounting bracket, an optical sensor at the bottom of the housing facing the placement seat, a touch screen display on one side of the housing, and an integrated controller inside the housing.

[0007] Preferably, the mounting bracket has a U-shaped structure, and the end of the mounting bracket is provided with a transparent pressure plate.

[0008] Preferably, the pressure plate is provided with sliding sleeves at both ends, and the sliding sleeves are detachably connected to both ends of the U-shaped structure mounting bracket.

[0009] Preferably, the pressure plate is made of transparent acrylic material, and the mounting bracket is made of stainless steel material.

[0010] Preferably, the optical sensor is located at the bottom of the housing and above the placement base, which is made of rubber.

[0011] Preferably, the center of the placement seat is provided with a groove for placing fingers, and the corners of the placement seat are rounded.

[0012] Preferably, the top cover is detachably connected to the housing, and the bottom of the top cover is connected to the electric actuator.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model has a simple structure. The electric push rod drives the pressure plate on the mounting bracket to press the finger on the placement seat. The pressure force is sent to the integrated controller through the pressure sensor to ensure that the pressure plate on the finger is maintained at 3-7N. During the pressing process, the change in finger color is monitored by the optical sensor and sent to the integrated controller. Finally, the monitoring data is displayed on the touch screen, which reduces human error, ensures monitoring efficiency, and facilitates medical staff to record the test results for subsequent use.

[0014] 2. The transparent pressure plate in this device ensures the sensitivity of the optical sensor and the effective observation of fingertip color changes. The transparent acrylic pressure plate not only ensures high signal quality received by the optical sensor and reduces signal attenuation caused by the opacity of the material, but also has high impact resistance, able to withstand a certain amount of pressure without easily breaking. This makes the pressure plate more durable during use and reduces damage caused by accidental impacts or drops. The stainless steel mounting bracket ensures the strength of the mounting bracket itself and is corrosion-resistant, ensuring the service life of this device.

[0015] 3. The grooves in this device ensure that the patient's finger is precisely aligned with the optical sensor and transparent pressure plate during placement. This precise alignment is crucial for accurately measuring capillary refill time, as any positional deviation can affect the optical sensor's accuracy in detecting changes in fingertip color. The grooves also ensure that the finger is in a consistent position each time, reducing measurement errors caused by positional variations and improving the repeatability and reliability of the measurement results. The rounded corners reduce the risk of scratches to the patient's fingers from the placement base's edges, especially during finger movement or placement, providing a gentler contact and avoiding injury from sharp edges.

[0016] 4. The sliding sleeve and the two ends of the U-shaped mounting bracket of this device are detachably connected, which facilitates the quick installation and maintenance of the pressure plate. This design allows the pressure plate to be easily removed from the mounting bracket for cleaning, replacement, or repair.

[0017] 5. The design of the sliding sleeve of this device allows the pressure plate to be adjusted on the U-shaped structure mounting frame to accommodate fingers of different sizes, thereby improving the versatility and flexibility of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the compression device.

[0019] In the diagram: 1. Base; 2. Column; 3. Housing; 4. Electric actuator; 5. Pressure sensor; 6. Mounting bracket; 7. Pressure plate; 8. Optical sensor; 9. Integrated controller; 10. Placement seat; 11. Touch screen; 12. Sliding sleeve; 13. Top cover. Detailed Implementation

[0020] 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.

[0021] Example 1 A device for monitoring the refill time of fingertip capillaries, with the following structure: Figures 1-3 As shown, the device includes a housing 3, with multiple columns 2 at the bottom of the housing 3. A base 1 is located at the bottom of each column 2, and a placement seat 10 is located on the base 1. An electric actuator 4 is located at the bottom of the housing 3, with its power output end penetrating through the bottom of the housing 3 and facing the base 1. A mounting bracket 6 is located at the power output end of the electric actuator 4, and a pressure plate 7 is located on the mounting bracket 6. A pressure sensor 5 is located between the electric actuator 4 and the mounting bracket 6. An optical sensor 8 is located at the bottom of the housing 3 facing the placement seat 10. A touch screen display 11 is located on one side of the housing 3, and an integrated controller 9 is located inside the housing 3.

[0022] When a patient requiring monitoring places their finger on the placement seat 10, the touch display screen 11 controls the simultaneous activation of the electric actuator 4 and the optical sensor 8. The power output of the electric actuator 4 drives the mounting bracket 6 downward. Since the pressure plate 7 on the mounting bracket 6 is located above the placement seat 10, it facilitates pressure on the finger placed on the placement seat 10 as the mounting bracket 6 moves downward. The pressure sensor 5 between the mounting bracket 6 and the electric actuator 4 can monitor the pressure force of the pressure plate 7 on the finger in real time. The pressure sensor 5 transmits the pressure signal to the integrated controller 9, which sends a signal to the electric actuator 4 to ensure that the pressure force of the pressure plate 7 on the finger is maintained at 3-7N and controls the electric actuator 4. Maintain pressure on the finger for 2 seconds to ensure the pressure plate 7 applies pressure for 2 seconds. When the optical sensor 8 detects that the finger color has turned pale, the integrated controller 9 sends a signal to the electric actuator 4. The electric actuator 4 moves the mounting bracket 6 upward to ensure that the pressure plate 7 leaves the finger. The optical sensor 8 can record the process of the fingertip changing from pale to normal pink. The optical sensor 8 sends the recorded signal to the integrated controller 9, which sends the monitoring information to the touch screen 11. It can monitor the time it takes for the fingertip to change from pale to normal pink, as well as the pressure applied by the pressure plate 7, reducing human error, ensuring monitoring efficiency, and facilitating medical staff to record the test results for subsequent use.

[0023] The mounting bracket 6 has a U-shaped structure, and a transparent pressure plate 7 is provided at one end of the mounting bracket 6. The pressure plate 7 is made of transparent acrylic material, and the mounting bracket 6 is made of stainless steel material.

[0024] The transparent pressure plate 7 ensures the sensitivity of the optical sensor 8 and the effective observation of fingertip color changes. The transparent acrylic pressure plate 7 not only ensures high signal quality received by the optical sensor 8 and reduces signal attenuation caused by the opacity of the material, but also has high impact resistance and can withstand a certain amount of pressure without easily breaking. This makes the pressure plate 7 more durable during use and reduces damage caused by accidental impacts or drops. The stainless steel mounting bracket 6 ensures the strength of the mounting bracket itself and is corrosion resistant, ensuring the service life of the device.

[0025] The optical sensor 8 is located at the bottom of the housing 3 and above the placement seat 10, which is made of rubber.

[0026] The optical sensor 8 located above the placement seat 10 can effectively monitor changes in fingertip color. The rubber placement seat 10 not only has a relatively smooth surface, making it easy to clean and disinfect, which can effectively reduce the risk of cross-infection, but also provides comfortable support due to the good softness and elasticity of rubber, reducing the pressure and discomfort of the patient's fingers.

[0027] The center of the placement seat 10 is provided with a groove for placing fingers, and the corners of the placement seat 10 are rounded.

[0028] The grooves ensure that the patient's finger is precisely aligned with the optical sensor 8 and the transparent pressure plate 7 during placement. This precise alignment is crucial for accurately measuring capillary refill time, as any positional deviation can affect the optical sensor 8's accuracy in detecting changes in fingertip color. The grooves also ensure that the finger position is consistent with each measurement, reducing measurement errors caused by positional variations and improving the repeatability and reliability of the measurement results. The rounded corners reduce the risk of scratches to the patient's finger from the edges of the placement seat 10, especially during finger movement or placement, providing a gentler contact and avoiding injury from sharp edges.

[0029] Example 2 Based on Embodiment 1, the pressure plate 7 is provided with sliding sleeves 12 at both ends, and the sliding sleeves 12 are detachably connected to both ends of the U-shaped structure mounting bracket 6.

[0030] Prolonged use can cause scratches or contamination on the surface of the acrylic pressure plate 7. The sliding sleeve 12 and the two ends of the U-shaped mounting bracket 6 are detachably connected, facilitating the quick installation and maintenance of the pressure plate 7. This design allows the pressure plate 7 to be easily removed from the mounting bracket 6 for cleaning, replacement, or repair.

[0031] Furthermore, the design of the sliding sleeve 12 allows the pressure plate 7 to be positioned on the U-shaped structure mounting bracket 6 to accommodate fingers of different sizes, improving the versatility and flexibility of the equipment.

[0032] The top cover 13 is detachably connected to the housing 3, and the bottom of the top cover 13 is connected to the electric push rod 4.

[0033] The top cover 13 can protect the internal electric actuator 4 and other electronic components, prevent dust, liquid and other contaminants from entering, and extend the service life of the equipment; and facilitates quick opening of the top cover 13 for maintenance and replacement of internal components.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations, additions, subtractions, or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A device for monitoring the refill time of fingertip capillaries, comprising a housing (3), characterized in that, The bottom of the housing (3) is provided with multiple columns (2), and the bottom end of each column (2) is provided with a base (1). The base (1) is provided with a placement seat (10). The bottom of the housing (3) is provided with an electric actuator (4). The power output end of the electric actuator (4) passes through the bottom of the housing (3) and is set towards the base (1). The power output end of the electric actuator (4) is provided with a mounting bracket (6). The mounting bracket (6) is provided with a pressure plate (7). A space is provided between the electric actuator (4) and the mounting bracket (6). There is a pressure sensor (5), and an optical sensor (8) facing the placement seat (10) is provided at the bottom of the housing (3). A touch screen (11) is provided on one side of the housing (3). An integrated controller (9) is provided inside the housing (3). The mounting bracket (6) is a U-shaped structure. A transparent pressure plate (7) is provided at the end of the mounting bracket (6). Sliding sleeves (12) are provided at both ends of the pressure plate (7). The sliding sleeves (12) are detachably connected to both ends of the U-shaped structure mounting bracket (6).

2. The fingertip capillary refill time monitoring device according to claim 1, characterized in that, The pressure plate (7) is made of transparent acrylic material, and the mounting bracket (6) is made of stainless steel material.

3. The fingertip capillary refill time monitoring device according to claim 1, characterized in that, The optical sensor (8) is located at the bottom of the housing (3) and above the placement seat (10), which is made of rubber.

4. The fingertip capillary refill time monitoring device according to claim 1, characterized in that, The middle part of the placement seat (10) is provided with a groove for placing fingers, and the corners of the placement seat (10) are rounded.

5. The fingertip capillary refill time monitoring device according to claim 1, characterized in that, A top cover (13) is detachably connected to the housing (3), and the bottom of the top cover (13) is connected to the electric push rod (4).

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