Neonatal radial artery blood sampling device, system and method of application control

Abstract

The application relates to a new-born radial artery blood sampling device, system and application control method, which can accurately locate the position of the strongest arterial pulsation by using ultrasonic technology and display the position on a display screen, so that an operator can accurately determine a blood sampling point; a miniature automatic blood sampling needle can be inserted into the artery according to the position of the strongest pulsation to directly complete sampling, and accurate sampling can reduce the occurrence of blood sampling complications and avoid the occurrence of hematoma and infection caused by the difference of puncture parts and puncture angles. When the blood sampling is completed, the operator can press an end button to automatically retract the blood sampling needle, press a replacement button to automatically discard the old blood sampling needle, and greatly reduce the occurrence of needle stick injury events possibly caused by the operator in the operation process. When an abnormal condition occurs in the blood sampling process, the operator can terminate the blood sampling operation at any time, and reduce the damage possibly caused to the new-born. All parts in contact with the new-born are made of disposable materials and can be discarded after use, so that cross infection is prevented.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of medical devices, in particular to a neonatal radial artery blood sampling device, system, and application control method and electronic device. BACKGROUND

[0002] Newborn blood sampling is an important operation in pediatric clinical work, and is an important basis for clinical diagnosis, rescue and medication. However, the diagnosis of neonatal diseases usually requires a large amount of blood samples to assist in treatment. The radial artery is relatively high in success rate of puncture and relatively low in complications due to its superficial location, and is currently the preferred position for arterial blood sampling. There are many methods in clinical practice to improve the success rate of neonatal radial artery blood sampling, such as the most direct touch method, the quarter joint touch method, the "cross" method, the visual method, and the direct vision method, to reduce the pain of the child and the occurrence of complications such as infection and hematoma at the puncture site. However, most premature infants have poor circulation, and the radial artery pulse is relatively weak, so the touch method is easily affected by subjective consciousness or not easy to touch. In addition, the neonatal population has small body surface area, thin blood vessels, and is prone to restlessness, making it difficult to collect arterial blood, which seriously affects the success rate of blood sampling. At the same time, during the blood sampling process, the restlessness of the child due to pain affects the nurse's perception of the pulsation point, which can easily lead to the needle being blindly inserted in and out of the skin, causing bruising, bleeding, hematoma at the blood sampling site, and infection and thrombosis at the puncture site.

[0003] During the process of arterial puncture and sample collection by nurses in clinical practice, different puncture sites and puncture angles need to be selected, and the incidence of complications after puncture and sample re-collection is related to the process of collection operation and the selection of tools. When blood is collected clinically, the position with the strongest pulsation needs to be determined by touch to determine the selection of needle insertion point and angle, but due to the difference in hand feeling of the operator, there is obvious individual difference in puncture site and puncture angle.

[0004] Some documents show that nurses are prone to needle stick injuries when performing arterial blood sampling, and the most common link is when the needle cap is retracted and the needle is removed. In the study, 44.44% of nurses used ordinary syringes, 45.78% used professional arterial blood sampling devices, and only 9.78% of nurses used safety needle stick prevention blood samplers. Therefore, it is urgent to solve the problems existing in clinical infant puncture to facilitate nurses to perform puncture and blood sampling. SUMMARY

[0005] To solve the above problems, the present application provides a neonatal radial artery blood sampling device, system, and application control method and electronic device.

[0006] In one aspect of the present application, a neonatal radial artery blood sampling device is provided, comprising:

[0007] a micro blood sampling needle 10 for collecting blood;

[0008] A sampling device shell 1, which is hollow inside and has an open slot 4 at the bottom;

[0009] A telescopic motor 14, which is arranged inside the right side of the sampling device shell 1, and the telescopic rod 8 of which is arranged horizontally along the open slot 4;

[0010] A hinge assembly, which is used to mount the micro blood lancet 10 on the telescopic rod 8 and can adjust the puncture angle of the micro blood lancet 10;

[0011] A Doppler ultrasound probe 5, which is arranged inside the left side of the sampling device shell 1, is used to scan and collect the blood flow echo signal of the radial artery of the newborn, and is fed back to the controller MCU 2;

[0012] The controller MCU 2, which is arranged on the outer side of the sampling device shell 1, is used to process the blood flow echo signal, generate the blood flow echo signal data of the radial artery, and transmit it to the touch screen 3 in real time; and control the telescopic motor 14 to extend and retract;

[0013] The touch screen 3, which is arranged on the outer side of the sampling device shell 1, is used to receive the blood flow echo signal data and display the blood flow echo signal diagram of the radial artery in real time, so that the nurse can determine the blood sampling point according to the scanning point corresponding to the signal peak on the blood flow echo signal diagram; and input the corresponding blood sampling time t1 to the controller MCU 2; the controller MCU 2 calculates the telescopic time t2 of the telescopic motor 14 according to the blood sampling time t1;

[0014] The blood sampling module 201, which is used to input the blood sampling work instruction to the controller MCU 2 after the nurse determines the blood sampling point, adjusts the puncture angle of the micro blood lancet 10 relative to the blood sampling point, and contacts the end of the micro blood lancet 10 with the blood sampling point; the controller MCU 2 controls the telescopic motor 14 to start extending and drive the micro blood lancet 10 to puncture and sample blood in response to the blood sampling work instruction; when the timing t2 ends, the controller MCU 2 controls the telescopic motor 14 to start retracting and take out the micro blood lancet 10;

[0015] The power module, which is used to supply power;

[0016] The telescopic motor 14, the Doppler ultrasound probe 5, the touch screen 3, the blood sampling module 201, and the power module are electrically connected to the controller MCU 2 respectively.

[0017] As an optional embodiment of the present application, the controller MCU 2 is also used to:

[0018] Calculate the blood flow velocity of the radial artery according to the blood flow echo signal;

[0019] And,

[0020] According to the time t2 and the blood flow velocity, the blood sampling flow is calculated;

[0021] and,

[0022] The blood flow velocity and the blood sampling flow are forwarded to the touch screen 3 for display, and are also forwarded to the communication module;

[0023] and,

[0024] The blood flow echo signal is judged whether an abnormality occurs, and if so, an abnormality alarm signal is generated and forwarded to the touch screen 3 for alarm.

[0025] As an optional embodiment of the present application, optionally further comprising:

[0026] The communication module is used for reporting the blood sampling flow to a background server, and the blood sampling flow of the current newborn is recorded by the background server;

[0027] The communication module is electrically connected with the controller MCU2.

[0028] As an optional embodiment of the present application, optionally, the hinge assembly comprises:

[0029] The first hinge 9 is arranged on the telescopic rod 8;

[0030] The second hinge 13 is arranged on the micro blood sampling needle 10;

[0031] When the second hinge 13 rotates relative to the first hinge 9 around the hinge point, the puncture angle of the micro blood sampling needle 10 relative to the blood sampling point is synchronously adjusted;

[0032] The first hinge 9 is hinged with the second hinge 13.

[0033] As an optional embodiment of the present application, optionally, the hinge assembly further comprises:

[0034] The positioning clamp plate 11 is arranged on the second hinge 13 and is clamped in the first hinge 9.

[0035] As an optional embodiment of the present application, optionally, a scale 7 is arranged on the outside of the sampling device shell 1, and an observation window 6 is arranged for nurses to observe the telescopic condition of the telescopic rod 8.

[0036] As an optional embodiment of the present application, optionally, the Doppler ultrasound probe 5 is further used for:

[0037] When blood sampling, the puncture position signal of the micro blood sampling needle 10 in the radial artery is scanned and fed back to the controller MCU2;

[0038] The controller MCU2 is also used for:

[0039] processing the puncture position signal to generate the puncture position signal data of the micro blood lancet 10 in the radial artery and forwarding the data to the touch screen 3 in real time;

[0040] The touch screen 3 is also used for:

[0041] displaying the puncture position graph of the micro blood lancet 10 in the radial artery in real time.

[0042] In another aspect of the present application, a neonatal radial artery blood sampling system is provided, which comprises:

[0043] a neonatal radial artery blood sampling device;

[0044] a background server configured to record the blood flow of the current neonate;

[0045] The neonatal radial artery blood sampling device is in communication connection with the background server.

[0046] In another aspect of the present application, an application control method of the neonatal radial artery blood sampling system is also provided, which comprises the following steps:

[0047] activating the neonatal radial artery blood sampling device, and collecting the blood flow echo signal of the radial artery of the neonate by the Doppler ultrasound probe and feeding back to the controller MCU2;

[0048] The controller MCU2 processes the blood flow echo signal to generate the blood flow echo signal data of the radial artery and forwards the data to the touch screen 3 in real time;

[0049] The touch screen 3 receives the blood flow echo signal data and displays the blood flow echo signal graph of the radial artery in real time, so as to facilitate the nurse to determine the blood sampling point according to the scanning point corresponding to the signal peak on the blood flow echo signal graph;

[0050] After the nurse determines the blood sampling point, adjusts the puncture angle of the micro blood lancet 10 relative to the blood sampling point, and contacts the end of the micro blood lancet 10 to the blood sampling point, the corresponding blood sampling time t1 is input to the controller MCU2; the controller MCU2 calculates the extension time t2 of the extension motor 14 according to the blood sampling time t1;

[0051] The nurse presses the blood sampling module 201 to input the blood sampling work instruction to the controller MCU2;

[0052] The controller MCU2 controls the extension motor 14 to start extending to drive the micro blood lancet 10 to puncture and sample blood in response to the blood sampling work instruction;

[0053] During the blood sampling process, the controller MCU2:

[0054] According to the blood flow echo signal, the blood flow velocity of the radial artery is calculated;

[0055] According to the time t2 and the blood flow velocity, the blood sampling flow is calculated;

[0056] The blood flow velocity and the blood sampling flow are forwarded to the touch screen 3 for display, and are also forwarded to the communication module; the blood sampling flow is reported to the background server by the communication module, and the blood sampling flow of the current newborn is recorded by the background server;

[0057] And,

[0058] The blood flow echo signal is judged whether an abnormality occurs, and if so, an abnormality alarm signal is generated and forwarded to the touch screen 3 for alarm;

[0059] The timing t2 ends, and the telescopic motor 14 is controlled to start contraction, and the micro blood sampling needle 10 is taken out;

[0060] The blood sampling ends.

[0061] Another aspect of the present application also provides an electronic device, comprising:

[0062] A processor;

[0063] A memory for storing processor executable instructions;

[0064] The processor is configured to implement the application control method when executing the executable instructions.

[0065] Technical effects of the present application:

[0066] The present application can accurately locate the position of the strongest arterial pulsation by using ultrasonic technology, and display it on the display screen. The operator can accurately determine the blood sampling point, and reduce the difference caused by hand feeling. The micro automatic blood sampling needle configured by the device is a relatively thinner and shorter blood sampling needle in the clinic. It can automatically and accurately insert the artery according to the position of the strongest pulsation. The other end of the blood sampling needle can be directly connected to a syringe or a blood sampling test tube to directly complete sampling. Accurate sampling can reduce the occurrence of blood sampling complications and avoid the occurrence of hematoma and infection caused by the difference of puncture part and puncture angle. When the blood sampling ends, the operator can press the end button to automatically retract the blood sampling needle. Pressing the replacement button can automatically discard the old blood sampling needle, greatly reducing the occurrence of needle stick injuries caused by the operator during operation. At the same time, the device is equipped with an emergency feedback system. When an abnormality occurs during blood sampling, the operator can terminate the blood sampling operation at any time to reduce the possible damage to the newborn. All parts that come into contact with the newborn are made of disposable materials and can be discarded after use to prevent cross infection.

[0067] Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0068] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the present disclosure and serve to explain the principles of the present disclosure.

[0069] Figure 1 Fig. 1 shows a structure diagram of the application of the present application;

[0070] Figure 2 Fig. 2 shows a control circuit diagram of the application of the present application;

[0071] Figure 3 Fig. 3 shows a structure diagram of the composition of the present application;

[0072] Figure 4 Fig. 4 shows another structure diagram of the application of the present application;

[0073] Figure 5 Fig. 5 shows a schematic diagram of the application of the present application. DETAILED DESCRIPTION

[0074] Various exemplary embodiments, features, and aspects of the present disclosure will be explained hereinafter with reference to the drawings. The same reference numbers in different drawings represent the same or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0075] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0076] In addition, for the purpose of convenience and brevity, detailed descriptions of well-known devices, methods, and circuits will be omitted so as not to obscure the concepts of the present disclosure. It will be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present disclosure and achieve the same ends that it accomplishes.

[0077] In the present scheme, various electronic facilities, such as power supply, MCU chip, touch screen (display and input), ultrasonic probe (ultrasonic probe using Doppler series), telescopic motor, and communication module, can be configured and selected by the user, such as 5G communication module, etc. The present embodiment is not limited to a specific application model.

[0078] For the micro blood taking needle used, a one-time rotary type anti-needle-sticking safety venous blood taking needle is preferred, which can be replaced after use (replaced by a nurse) and automatically recovered after puncture to realize automatic needle taking. The blood taking needle provided in the patent CN105078475A is preferred.

[0079] Embodiment 1

[0080] As shown in Figure 1 and 2 , in one aspect of the present application, a neonatal radial artery blood taking device is provided, comprising:

[0081] a micro blood taking needle 10 for collecting blood;

[0082] a sampling device shell 1, which is hollow inside and provided with an open slot 4 at the bottom;

[0083] a telescopic motor 14, which is arranged inside the right side of the sampling device shell 1, and a telescopic rod 8 thereof is arranged horizontally along the open slot 4;

[0084] a hinge assembly for mounting the micro blood taking needle 10 on the telescopic rod 8 and capable of adjusting the puncture angle of the micro blood taking needle 10;

[0085] a Doppler ultrasound probe 5, which is arranged inside the left side of the sampling device shell 1, for scanning and collecting blood flow echo signals of the neonatal radial artery and feeding back to a controller MCU 2;

[0086] a controller MCU 2, which is arranged on the outer side of the sampling device shell 1, for processing the blood flow echo signals, generating blood flow echo signal data of the radial artery, and forwarding the data to a touch screen 3 in real time; and controlling the telescopic motor 14 to extend and retract;

[0087] a touch screen 3, which is arranged on the outer side of the sampling device shell 1, for receiving the blood flow echo signal data and displaying a blood flow echo signal graph of the radial artery in real time, so as to facilitate a nurse to determine a blood taking point according to a scanning point corresponding to a signal peak on the blood flow echo signal graph, and input a corresponding blood taking time t1 to the controller MCU 2; the controller MCU 2 calculates an extension and retraction time t2 of the telescopic motor 14 according to the blood taking time t1;

[0088] The blood sampling module 201 is used to input a blood sampling instruction to the controller MCU2 after the nurse determines the blood sampling point, adjusts the puncture angle of the micro blood lancet 10 relative to the blood sampling point, and contacts the end of the micro blood lancet 10 with the blood sampling point; the controller MCU2 controls the telescopic motor 14 to start extending to drive the micro blood lancet 10 to puncture and sample blood in response to the blood sampling instruction; and the telescopic motor 14 starts to retract to take out the micro blood lancet 10 when the timing t2 ends.

[0089] The power module is used for power supply.

[0090] The telescopic motor 14, the Doppler ultrasound probe 5, the touch screen 3, the blood sampling module 201 and the power module are electrically connected with the controller MCU2 respectively.

[0091] The scheme mainly realizes the following functions:

[0092] 1. Arterial pulsation sensing positioning system: This system uses ultrasonic technology to accurately locate the position of the artery of the newborn. By providing real-time images of the artery on the display screen of the device, medical personnel can accurately determine the blood sampling point, thereby reducing unnecessary repeated attempts and increased discomfort.

[0093] The Doppler ultrasound host and probe, the processor and the display screen are preferentially used to measure the echo signal of the blood flow and calculate the blood flow velocity and flow.

[0094] The principle of ultrasonic blood flow measurement is to use the characteristics that ultrasonic waves are affected by reflection, scattering, refraction, absorption, etc. of different tissues when propagating in substances. When ultrasonic waves pass through blood, they encounter blood components such as red blood cells, and the mass and speed difference of these components is related to factors such as ultrasonic frequency and intensity, thereby generating echo signals.

[0095] In the process of ultrasonic blood flow measurement, ultrasonic waves pass through the blood vessel area to be detected, part of which is absorbed by blood, part of which is scattered by blood waves, and part of which directly returns to the ultrasonic probe to form echo signals. According to the strength, frequency and other characteristics of the echo signals, the blood flow velocity, flow and other parameters can be calculated.

[0096] The principle of ultrasonic blood flow measurement is based on the Doppler effect. According to the principle of Doppler shift, when ultrasonic waves and moving red blood cells move relative to each other, the frequency of the echo signal will change. By measuring the frequency change of the echo signal, the speed and flow rate of red blood cells can be calculated to obtain blood flow information.

[0097] 2. Micro automatic blood sampling needle: Once the arterial location is confirmed by the ultrasound positioning system, this extremely thin blood sampling needle will automatically and accurately insert into the artery for blood collection. This process aims to reduce pain and discomfort for the newborn. The blood sampling needle is replaceable and can be automatically retracted after blood collection. The operator can press the needle replacement button to detach the used blood sampling needle from the blood collection device. The blood sampling needle can be directly connected to a test tube or a syringe.

[0098] 3. Real-time feedback monitoring: During blood collection, the device will monitor the blood flow and needle position in real time to ensure smooth blood collection. Any abnormality will be immediately notified to medical staff through the device's alarm system, so that the blood collection can be adjusted or stopped in time. Simplified operation interface: The entire device is designed with a simplified operation interface, allowing medical staff to easily start and control the blood collection process, and quickly respond even in emergency situations. Emergency automatic needle withdrawal function: To further ensure safety, if the system detects a serious abnormality or the operator presses the emergency button, the blood sampling needle will be automatically and quickly withdrawn, reducing potential harm to the newborn.

[0099] 4. Sterile disposable components: All parts that come into contact with the newborn's skin are made of sterile disposable materials and are discarded after use, effectively preventing cross-infection.

[0100] The device will be described in detail below.

[0101] In combination with the drawings Figure 1 and 2 The blood collection device of the present scheme is mainly composed of a sampling device shell (which can be a hollow cylindrical tube or other rectangular tube, etc., made of plastic). Inside the sampling device shell, a telescopic motor is provided, and a micro blood sampling needle is movably connected to the telescopic rod of the telescopic motor through a hinge assembly.

[0102] The tail of the micro blood sampling needle can be connected to a syringe or a blood collection test tube. The hinge assembly can rotate and engage to adjust the puncture angle of the micro blood sampling needle.

[0103] The telescopic motor is controlled by a controller MCU (referred to as controller or MCU) provided on the sampling device shell. Under the driving of the telescopic motor, the micro blood sampling needle can be driven to puncture and collect blood according to the adjusted puncture angle. In the present scheme, by default, when the blood sampling needle pierces the blood vessel, blood enters the micro blood sampling needle for collection; when it exits the blood vessel, collection stops.

[0104] The specific nursing process should be implemented in combination with the clinical blood collection operation steps.

[0105] An open slot is provided at the lower part of the sampling device shell to allow the telescopic rod to drive the micro blood sampling needle to extend forward and retract after blood collection.

[0106] On the outside of the sampling device shell is also installed a touch screen, the touch screen is connected with the controller, the nurse can input corresponding control parameters and blood sampling instructions and so on to the controller through the touch screen.

[0107] The nurse can input the corresponding blood sampling time through the touch screen in advance, and the blood sampling amount is calculated according to the blood sampling time and the calculated blood sampling speed (calculated from the ultrasonic blood flow echo signal, such as 3ml blood per second). The controller needs to calculate the extension time of the telescopic motor according to the blood sampling time, such as three seconds of blood sampling, then control the puncture needle to enter the blood vessel for three seconds, and then withdraw. Here, the time of the puncture needle retracting needs to be considered, so the time required for the puncture needle to complete a round trip from penetration to withdrawal needs to be considered as the extension time T2.

[0108] A button is provided on the controller, which is a blood sampling module. The button where the blood sampling module is located can be pressed by the nurse when puncturing to input the blood sampling control instruction to the controller, so that the controller controls the telescopic motor to extend, so as to drive the micro blood sampling needle to move forward and puncture to sample blood. After blood sampling is completed, the telescopic motor is reversed to retract the blood sampling needle.

[0109] The type of telescopic motor is not limited in this scheme. The telescopic rod of the telescopic motor is concentrically arranged with the axis of the sampling device shell, and the telescopic motor is horizontally deepened from the right side port of the sampling device shell (to the shaft shoulder of the central hole inside the sampling device shell), and then fixed in the right part inside the sampling device shell through the end cover.

[0110] An ultrasonic detection device is also provided in this scheme. A Doppler ultrasonic probe is provided on the sampling device shell, which is composed of an ultrasonic wave emitting probe and an ultrasonic wave receiving probe. Before puncturing, the device is held to scan the line of the radial artery blood vessel (the nurse marks the blood vessel scanning route on the baby's body surface in advance, or determines the scanning route of the blood vessel by herself), and then the activated ultrasonic probe is used to perform ultrasonic scanning on the radial artery to obtain blood flow echo signals at each position, so as to determine the place with the strongest pulse as the blood sampling puncture point.

[0111] The controller controls the ultrasonic wave emitting probe and the receiving probe respectively, the ultrasonic wave emitting probe emits ultrasonic wave signals, the receiving probe receives the echo signals feedback by the blood flow and feeds back to the controller, the controller processes the blood flow echo signals to generate blood flow echo signal data (including pulse frequency, blood flow, etc.) of each part of the radial artery. The blood flow echo signal data will be visually displayed on the touch screen with the horizontal axis as the scanning distance and the vertical axis as the signal value of each blood flow echo signal.

[0112] Therefore, the blood flow echo signal graph of the radial artery can be displayed on the touch screen, and the blood flow echo signal values of different pulse points can be found on the blood flow signal echo signal graph, and the nurse can determine the puncture point on the radial artery according to the signal peak value displayed on the graph, that is, the blood vessel position point corresponding to the maximum peak value as the scanning point, and the blood sampling is performed by puncture, thereby saving the nurse to find the best puncture blood sampling position.

[0113] As shown in Figure 4 When the blood sampling point is determined, the nurse rotates the hinge assembly to adjust the puncture angle of the micro blood sampling needle 10 relative to the blood sampling point.

[0114] In this embodiment, the hinge assembly can be manually adjusted or electrically adjusted. Manual adjustment is preferred.

[0115] As an optional embodiment of the present application, the controller MCU2 is also used to:

[0116] According to the blood flow echo signal, the blood flow velocity of the radial artery is calculated;

[0117] and,

[0118] According to the time t2 and the blood flow velocity, the blood sampling flow is calculated;

[0119] and,

[0120] The blood flow velocity and the blood sampling flow are forwarded to the touch screen 3 for display, and are also forwarded to the communication module;

[0121] and,

[0122] Determine whether the blood flow echo signal is abnormal, and if so, generate an abnormal alarm signal and forward it to the touch screen 3 for alarm.

[0123] During blood sampling, continuous ultrasonic detection is performed, so the blood flow echo signal can be displayed in real time on the touch screen. If the blood flow velocity is slow or fast, etc. Abnormal, the controller monitors and alarms, and the corresponding abnormal alarm signal is displayed on the touch screen 3. The abnormal alarm signal can be an abnormal alarm sound or a flashing alarm signal, so that the touch screen can directly respond.

[0124] The system can preset the corresponding type of abnormal alarm signal in advance, such as the signal of slow blood flow, which can be directly called and activated by the controller.

[0125] As an optional embodiment of the present application, it also includes:

[0126] The communication module is used to report the blood sampling flow to the background server, and the background server records the blood sampling flow of the current newborn;

[0127] The communication module is electrically connected with the controller MCU2.

[0128] The device can also be provided with a data communication module on the blood sampling device, such as a Bluetooth or 5G wireless communication module, which can report the blood sampling flow to the background server. The specific communication mode and connection can be communicated by the administrator, so that the background nurse collects the blood sampling flow of the newborn on the same day and records it in the background.

[0129] As shown in Figure 3 As an optional embodiment of the present application, the hinge assembly comprises:

[0130] The first hinge 9 is arranged on the telescopic rod 8.

[0131] The second hinge 13 is arranged on the micro blood sampling needle 10.

[0132] When the second hinge 13 rotates relative to the first hinge 9 around the hinge point, the puncture angle of the micro blood sampling needle 10 relative to the blood sampling point is adjusted synchronously.

[0133] The first hinge 9 is hingedly connected with the second hinge 13.

[0134] The second hinge 13 is a sleeve ring for sleeving the micro blood sampling needle 10 (the micro blood sampling needle 10 is fitted in the sleeve ring of the second hinge 13), and the micro blood sampling needle 10 is hung on the first hinge 9 above.

[0135] The top of the first hinge 9 is fixedly connected with the telescopic rod 8, and the lower right corner of the lower end is hingedly connected with the upper right corner of the second hinge 13.

[0136] Therefore, the relative rotation can be adjusted to adjust the angle of the micro blood sampling needle 10. Here, the hinge point adopts a riveting structure, but can be rotated, or the clamping force between the first hinge 9 and the second hinge 13 can be adjusted by a bolt structure, and when the angle is adjusted, the first hinge 9 and the second hinge 13 are clamped by the bolt.

[0137] Here, a rotating shaft (which can be driven by a motor, and the motor can be a servo motor controlled by a controller, and the specific rotation parameters correspond to the puncture angle, which can be calculated by a nurse and input through a touch screen) can be arranged at the lower right corner of the first hinge 9, and the upper right corner of the second hinge 13 is fixedly fitted on the rotating shaft.

[0138] As an optional embodiment of the present application, the hinge assembly further comprises:

[0139] The positioning clamp plate 11 is arranged on the second hinge 13 and is clamped in the first hinge 9.

[0140] As an optional embodiment of the present application, the sampling device shell 1 is optionally provided with an observation window 6 with a scale 7 on the outer side, for nurses to observe the extension of the telescopic rod 8.

[0141] The positioning clamp plate 11 is mainly used for positioning during rotation to avoid shaking of the puncture needle.

[0142] As an optional embodiment of the present application, the Doppler ultrasound probe 5 is also used for:

[0143] When blood sampling, the puncture position signal of the micro blood sampling needle 10 in the radial artery is scanned and fed back to the controller MCU2;

[0144] The controller MCU2 is also used for:

[0145] Processing the puncture position signal to generate the puncture position signal data of the micro blood sampling needle 10 in the radial artery and forwarding it to the touch screen 3 in real time;

[0146] The touch screen 3 is also used for:

[0147] Real-time display of the puncture position map of the micro blood sampling needle 10 in the radial artery.

[0148] During blood sampling, the device will monitor the flow of blood and the position of the needle in real time to ensure the smooth progress of blood sampling. Any abnormal situation will immediately notify the medical staff through the alarm system of the device so as to adjust or stop blood sampling in time.

[0149] Simplify the operation interface: the entire device is designed with a simplified operation interface, so that medical staff can easily start and control the blood sampling process, and can quickly respond even in emergency situations.

[0150] During the puncture process, the ultrasound probe is activated in real time and performs sampling monitoring to collect corresponding ultrasound data. The blood sampling needle can be visualized under the ultrasound data, so the position of the blood sampling needle in the blood vessel can be displayed on the touch screen in synchronization. The operation method of the blood sampling needle in the blood vessel using the ultrasound image can be combined with the existing Doppler ultrasound technology to perform ultrasound contrast in the blood vessel, and can be combined with the clinical Doppler ultrasound system to complete the blood sampling needle contrast display of the present scheme.

[0151] The Doppler ultrasound system can be set beside the bed and can communicate data with the controller of the present scheme. The data collected by the ultrasound probe can be converted to the Doppler ultrasound system by the controller in synchronization, and the puncture contrast image of the puncture needle in the radial artery can be generated by the Doppler ultrasound system after processing, and fed back to the controller, and then forwarded to the touch screen for display by the controller.

[0152] If the corresponding ultrasonic contrast image processing program is configured in the controller embedded program in the scheme, the image data collected by the ultrasound can also be image processed, and the corresponding micro blood sampling needle puncture position map data in the radial artery can be generated and synchronized in real time to the touch screen for display, which is convenient for nurses to observe the puncture position of the blood sampling needle and other visual blood sampling operations.

[0153] The device can also be provided with a handle 12 on the sampling device shell 1, which is convenient for nurses to operate.

[0154] The device can also be fixed beside the bed, and after adjusting the angle, the puncture distance is calculated, and the device automatically advances the needle, but a fixer is needed to fix the baby's arm, and the specific fixer can be determined by the nurse. A mechanical arm can also be used instead to realize automatic operation.

[0155] In another aspect of the present application, a neonatal radial artery blood sampling system is provided, comprising:

[0156] A neonatal radial artery blood sampling device;

[0157] A background server for recording the current neonatal blood sampling flow;

[0158] The neonatal radial artery blood sampling device is in communication connection with the background server.

[0159] The system is understood in combination with the functions of the above device.

[0160] Obviously, those skilled in the art should understand that all or part of the processes in the above embodiments can be completed by a computer program instructing related hardware, and the program can be stored in a computer readable storage medium. The program can include the processes of the above-mentioned control embodiments when executed. Those skilled in the art can understand that all or part of the processes in the above embodiments can be completed by a computer program instructing related hardware, and the program can be stored in a computer readable storage medium. The program can include the processes of the above-mentioned control embodiments when executed. The storage medium can be a magnetic disc, an optical disc, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid state drive (SSD), etc. The storage medium can also include a combination of the above-mentioned types of memories.

[0161] Embodiment 2

[0162] Based on the implementation principle of embodiment 1, another aspect of the present application also proposes an application control method of the neonatal radial artery blood sampling system, which comprises the following steps:

[0163] The neonatal radial artery blood sampling device is activated, the Doppler ultrasound probe scans and collects the blood flow echo signal of the neonatal radial artery, and feeds back to the controller MCU2;

[0164] The controller MCU2 processes the blood flow echo signal to generate the blood flow echo signal data of the radial artery, and transmits it to the touch screen 3 in real time;

[0165] The touch screen 3 receives the blood flow echo signal data and displays the blood flow echo signal diagram of the radial artery in real time, so as to facilitate the nurse to determine the blood sampling point according to the scanning point corresponding to the signal peak on the blood flow echo signal diagram;

[0166] After the nurse determines the blood sampling point, adjusts the puncture angle of the micro blood sampling needle 10 relative to the blood sampling point, and contacts the end of the micro blood sampling needle 10 with the blood sampling point, the corresponding blood sampling time t1 is input to the controller MCU2; The controller MCU2 calculates the extension time t2 of the telescopic motor 14 according to the blood sampling time t1;

[0167] The nurse presses the blood sampling module 201 to input the blood sampling work instruction to the controller MCU2;

[0168] The controller MCU2 controls the telescopic motor 14 to start extending to drive the micro blood sampling needle 10 to puncture and sample blood in response to the blood sampling work instruction;

[0169] During the blood sampling process, the controller MCU2:

[0170] According to the blood flow echo signal, the blood flow velocity of the radial artery is calculated;

[0171] According to the time t2 and the blood flow velocity, the blood sampling flow is calculated;

[0172] The blood flow velocity and the blood sampling flow are forwarded to the touch screen 3 for display, and are also forwarded to the communication module; the communication module reports the blood sampling flow to the background server, and the background server records the blood sampling flow of the current neonatal;

[0173] And,

[0174] If the abnormal blood flow echo signal appears, an abnormal alarm signal is generated and forwarded to the touch screen 3 for alarm;

[0175] When the time t2 ends, the telescopic motor 14 starts to contract to take out the micro blood sampling needle 10;

[0176] The blood sampling is completed.

[0177] The specific steps are understood in combination with Embodiment 1.

[0178] The modules or steps of the application described above can be implemented by a general computing system, which can be centralized on a single computing system or distributed on a network composed of multiple computing systems. Alternatively, the modules or steps can be implemented by program codes executable by a computing system, so that they can be stored in a storage system and executed by a computing system, or they can be respectively manufactured into individual integrated circuit modules, or multiple modules or steps among them can be manufactured into a single integrated circuit module. Thus, the application is not limited to any specific combination of hardware and software.

[0179] Embodiment 3

[0180] As Figure 5 Further, another aspect of the present application also provides an electronic device, comprising:

[0181] a processor;

[0182] a memory for storing processor-executable instructions;

[0183] wherein the processor is configured to implement the application control method when executing the executable instructions.

[0184] The electronic device of the embodiments of the present disclosure includes a processor and a memory for storing processor-executable instructions. Wherein the processor is configured to implement the application control method of any of the preceding embodiments when executing the executable instructions.

[0185] Here, it should be pointed out that the number of processors can be one or more. Meanwhile, the electronic device of the embodiments of the present disclosure can also include an input system and an output system. Wherein the processor, the memory, the input system and the output system can be connected through a bus, or connected through other ways, which is not limited here.

[0186] The memory as a computer readable storage medium can be used to store software programs, computer executable programs and various modules, such as programs or modules corresponding to the application control method of the embodiments of the present disclosure. The processor executes the software programs or modules stored in the memory, thereby performing various functional applications and data processing of the electronic device.

[0187] The input system can be used to receive input numbers or signals. Wherein the signals can be key signals related to the user settings and function control of the device / terminal / server. The output system can include display devices such as display screens.

[0188] Having described above several embodiments of the disclosure, any modifications and variations that fall within the scope of the described embodiments are also intended to be within the scope of the disclosure. As will be apparent to those skilled in the art, some modifications and variations to the embodiments described above can be practiced while staying within the scope and spirit of the described embodiments. The foregoing description of the described embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the described embodiments to the precise form disclosed. Many modifications and variations are possible in light of the above teachings. It is intended that the disclosed embodiments be limited only by the claims.

Claims

1. A neonatal radial artery blood sampling device, characterized by, The device comprises: a micro blood lancet (10) for collecting blood; a sampling device shell (1) which is hollow inside and has an open slot (4) at the bottom; a telescopic motor (14) arranged inside the right side of the sampling device shell (1), and a telescopic rod (8) of the telescopic motor (14) is arranged horizontally along the open slot (4); a hinge assembly for mounting the micro blood lancet (10) on the telescopic rod (8) and capable of adjusting the puncture angle of the micro blood lancet (10); a Doppler ultrasound probe (5) arranged inside the left side of the sampling device shell (1) for scanning the blood flow echo signal of the radial artery of a newborn and feeding back to a controller MCU (2); the controller MCU (2) is arranged on the outer side of the sampling device shell (1) for processing the blood flow echo signal, generating the blood flow echo signal data of the radial artery and forwarding the data to a touch screen (3) in real time, and controlling the telescopic motor (14) to extend and retract; the touch screen (3) is arranged on the outer side of the sampling device shell (1) for receiving the blood flow echo signal data and displaying the blood flow echo signal diagram of the radial artery in real time, so that the nurse can determine the blood collection point according to the scanning point corresponding to the signal peak on the blood flow echo signal diagram; and inputting the corresponding blood collection time t1 to the controller MCU (2); the controller MCU (2) calculates the telescopic time t2 of the telescopic motor (14) according to the blood collection time t1; a blood collection module (201) for inputting a blood collection work instruction to the controller MCU (2) after the nurse determines the blood collection point, adjusts the puncture angle of the micro blood lancet (10) relative to the blood collection point and contacts the end of the micro blood lancet (10) with the blood collection point; the controller MCU (2) controls the telescopic motor (14) to start extending to drive the micro blood lancet (10) to puncture and collect blood; when the time t2 is up, the controller MCU (2) controls the telescopic motor (14) to start retracting to take out the micro blood lancet (10); a power module for power supply; the controller MCU (2) is further used for: calculating the blood flow velocity of the radial artery according to the blood flow echo signal; and, calculating the blood collection flow according to the time t2 and the blood flow velocity; and, forwarding the blood flow velocity and the blood collection flow to the touch screen (3) for display and to a communication module; and, judging whether the blood flow echo signal is abnormal, and generating an abnormal alarm signal and forwarding the signal to the touch screen (3) for alarm if the signal is abnormal; the telescopic motor (14), the Doppler ultrasound probe (5), the touch screen (3), the blood collection module (201) and the power module are electrically connected with the controller MCU (2).

2. The neonatal radial artery blood sampling device of claim 1, wherein, Further comprising: a communication module for reporting the blood collection flow to a background server, and recording the blood collection flow of the current newborn by the background server; the communication module is electrically connected with the controller MCU (2).

3. The neonatal radial artery blood sampling device of claim 1, wherein, The hinge assembly comprises: a first hinge (9) arranged on the telescopic rod (8); a second hinge (13) arranged on the micro blood lancet (10); When the second hinge (13) rotates relative to the first hinge (9) around the hinge point, the puncture angle of the micro blood lancet (10) relative to the blood sampling point is adjusted synchronously. The first hinge (9) is hingedly connected with the second hinge (13).

4. The neonatal radial artery blood sampling device of claim 3, wherein, The hinge assembly further comprises: A positioning clamp plate (11) is arranged on the second hinge (13) and is clamped in the first hinge (9).

5. The neonatal radial artery blood sampling device of claim 1, wherein, An observation window (6) with a scale (7) is further arranged on the outer side of the sampling device shell (1), which is used for nurses to observe the extension of the telescopic rod (8).

6. The neonatal radial artery blood sampling device of claim 1, wherein, The Doppler ultrasound probe (5) is further used for: When blood sampling, scanning the puncture position signal of the micro blood lancet (10) in the radial artery and feeding back to the controller MCU (2); The controller MCU (2) is further used for: Processing the puncture position signal, generating the puncture position signal data of the micro blood lancet (10) in the radial artery, and forwarding to the touch screen (3) in real time; The touch screen (3) is further used for: Real-time display of the puncture position map of the micro blood lancet (10) in the radial artery.

7. A neonatal radial artery blood sampling system, characterized by, It comprises: The neonatal radial artery blood sampling device according to any one of claims 1-6; A background server is used for recording the blood sampling flow of the current neonate; The neonatal radial artery blood sampling device is in communication connection with the background server.

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