Infusion device and needle leakage detection method

Abstract

The application discloses an infusion device and a detection method. The infusion device comprises a liquid driving module, a detection module and a controller. The controller can control the liquid driving module to drive the input liquid provided by the infusion supply module to be injected into the organism through the tube and the needle, and then execute a blood return detection program, which comprises: a driving stopping step of controlling the liquid driving module to stop driving; a judging step of controlling the detection module to detect the state of the section of the tube adjacent to the needle to generate detection information, and then judging whether the blood of the organism returns to the section of the tube adjacent to the needle according to the detection information; if it is determined according to the detection information that the blood of the organism does not return to the section of the tube adjacent to the needle, it is determined that a needle leakage condition occurs around the needle, otherwise, it is determined that the needle leakage condition does not occur around the needle.

Description

TECHNICAL FIELD

[0001] The present application relates to an infusion device and a detection method, in particular, an infusion device capable of detecting needle leakage and a needle leakage detection method for detecting needle leakage. BACKGROUND

[0002] During the process of intravenous infusion, needle leakage may occur due to various conditions (e.g. patient movement, etc.) and the needle head may leave the vein. If the relevant personnel do not timely and properly handle the needle leakage, the input liquid will continuously enter the tissue around the injection site, and the injection site and its surrounding area of the patient may swell, become inflamed, and cause pain. In addition, some chemotherapy agents are corrosive, and if the needle leakage occurs and the relevant nursing personnel do not timely handle it, it may lead to serious consequences, and even the injection site may have to be amputated. SUMMARY

[0003] The present application discloses an infusion device and a needle leakage detection method, which are mainly used to improve the fact that the conventional intravenous injection device (IV PUMP) does not have a needle leakage detection function, and the relevant personnel have to rely on experience to check for needle leakage. Therefore, it is easy to fail to find the needle leakage due to insufficient experience of the personnel.

[0004] One embodiment of the present application discloses an infusion device, which comprises: a liquid driving module connected to at least one infusion supply module, and one end of a tube connected to the liquid driving module, and the other end of the tube connected to a needle head; a detection module for detecting the state of the section of the tube adjacent to the needle head and generating detection information accordingly; and a controller electrically connected to the liquid driving module and the detection module, which can control the liquid driving module to drive the input liquid provided by the infusion supply module to be injected into a living body, and execute a blood return detection program, which comprises: a driving stopping step of controlling the liquid driving module to stop driving; and a judgment step of controlling the detection module to detect the state of the section of the tube adjacent to the needle head to generate the detection information, and judge whether the blood of the living body returns to the section of the tube adjacent to the needle head; wherein if the blood of the living body does not return to the section of the tube adjacent to the needle head, it is determined that the needle leakage occurs, and corresponding prompt information is generated.

[0005] Optionally, the detection module comprises a light emitting unit and a light receiver, the light emitting unit emits a detection light beam to the section of the tube adjacent to the needle head, and the light receiver receives the detection light beam reflected by the liquid in the tube to generate the detection information.

[0006] Optionally, the detection module comprises an image capturing device, and the detection information comprises a captured image.

[0007] Optionally, the infusion device further comprises an input module electrically connected to the controller; wherein the controller controls the liquid driving module to inject a detection amount of the input liquid into the living body before performing the blood return detection procedure when the controller receives a detection instruction outputted by the input module.

[0008] Optionally, the controller is capable of performing an infusion procedure to control the liquid driving module to inject a predetermined amount of the input liquid into the living body.

[0009] Optionally, the input liquid is a medicine liquid, and the infusion device further comprises a withdrawal device electrically connected to the controller; wherein the controller controls the withdrawal device to withdraw the medicine liquid injected into the living body through the tube when the controller determines that the needle leakage condition occurs.

[0010] Optionally, the input liquid is a medicine liquid, and the liquid driving module is further connected to an auxiliary liquid supply unit connected to the tube; wherein the controller controls the liquid driving module to inject an auxiliary liquid provided by the auxiliary liquid supply unit into the living body when the controller determines that the needle leakage condition occurs; and the auxiliary liquid is used to dilute the medicine liquid or to assist the living body to absorb the medicine liquid.

[0011] Optionally, the liquid driving module is further connected to a detection liquid supply unit connected to the tube; wherein the input liquid is a medicine liquid, the detection liquid supply unit is capable of providing a detection liquid different from the medicine liquid, and the controller controls the liquid driving module to inject a detection amount of the detection liquid into the living body before performing the blood return detection procedure.

[0012] Optionally, the infusion device further comprises a blockage detector for detecting a flow condition of the input liquid in the tube; wherein the blockage detector is capable of generating a blockage signal when a blockage condition of the input liquid in the tube occurs, and the blockage detector is capable of transmitting the blockage signal to the controller.

[0013] Optionally, the infusion device further comprises an infusion block module for reducing potential energy of the input liquid in the tube near the needle head from the tube near the liquid driving module to accelerate blood return of the living body to a section of the tube adjacent to the needle head.

[0014] One of the embodiments of the present application discloses a needle leakage detection method, which is executed by a controller of an infusion device, the infusion device is connected with a tube, one end of the tube is connected with a needle, the infusion device can inject an input liquid into a living body through the tube and the needle, during the process that the infusion device injects the input liquid into the living body, the controller of the infusion device can execute the needle leakage detection method, the needle leakage detection method comprises: a stop driving step: stop injecting the input liquid into the living body; a judgment step: detecting a state of a section of the tube adjacent to the needle to generate detection information, and judging whether blood of the living body flows back to the section of the tube adjacent to the needle according to the detection information; if it is judged that the blood of the living body does not flow back to the section of the tube adjacent to the needle, it is judged that a needle leakage condition occurs, and corresponding prompt information is generated; if it is judged that the blood of the living body flows back to the section of the tube adjacent to the needle, it is judged that the needle leakage condition does not occur.

[0015] Optionally, the stop driving step comprises: reducing potential energy of the input liquid in the tube adjacent to the needle from the liquid driving module to accelerate the blood of the living body to flow back to the section of the tube adjacent to the needle.

[0016] In summary, the infusion device and the needle leakage detection method of the present application can help relevant personnel to find the needle leakage condition, so that the relevant personnel can solve the needle leakage condition in real time, so that the harm caused by the needle leakage condition to the living body can be greatly reduced.

[0017] In order to further understand the features and technical contents of the present application, please refer to the following detailed description and drawings of the present application. However, the description and drawings are only used to illustrate the present application, and do not limit the protection scope of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The schematic diagram of the infusion device, the infusion supply module, the tube and the needle of the present application.

[0019] Figure 2 The block schematic diagram of the first embodiment of the infusion device of the present application.

[0020] Figure 3 The flowchart of the blood return detection program of the present application.

[0021] Figure 4 The block schematic diagram of the second embodiment of the infusion device of the present application.

[0022] Figure 5 The block schematic diagram of the third embodiment of the infusion device of the present application.

[0023] Figure 6 The block schematic diagram of the fourth embodiment of the infusion device of the present application.

[0024] Figure 7 A schematic diagram of a fifth embodiment of the infusion apparatus of the present application.

[0025] Figure 8 A schematic diagram of a sixth embodiment of the infusion apparatus of the present application.

[0026] Figure 9 A block schematic diagram of a seventh embodiment of the infusion apparatus of the present application.

[0027] Figure 10 A flowchart of the needle leakage detection method of the present application. DETAILED DESCRIPTION

[0028] In the following description, reference could be made to, or shown in, a particular figure, which is merely used to emphasize that most of the related content described in the subsequent description appears in the particular figure, but does not limit the subsequent description to refer to only the particular figure.

[0029] Reference could be made to Figure 1 and Figure 2 , Figure 1 A schematic diagram of the infusion apparatus, the infusion supply module, the tube and the needle of the present application is shown, Figure 2 A block schematic diagram of the infusion apparatus of the present application is shown. The infusion apparatus A of the present application comprises a controller 1, a liquid driving module 2, an input module 3, a display 4 and a detection module 5. It is noted that the infusion apparatus A of the present application is not limited to necessarily comprise the input module 3 and the display 4.

[0030] The controller 1 is electrically connected to the liquid driving module 2, which is used to connect to one end of the tube C and the infusion supply module B (such as a drip bag). The other end of the tube C is connected to the needle D, which is used to be inserted into the blood vessel (such as a vein) of the living body E. The controller 1 can control the liquid driving module 2 to act, so that the input liquid B1 provided by the infusion supply module B is injected into the living body E through the tube C. The living body E, such as a human, a pet, etc., is not limited herein. The liquid driving module 2, such as a peristaltic air pump, a motor, etc., can be a fluid driving unit, and the controller 1 can control the liquid driving module 2 to act, so that the input liquid B1 provided by the infusion supply module B is injected into the living body E at a stable flow rate and flow volume. More specifically, the infusion apparatus A of the present application, through the cooperation of the controller 1, the liquid driving module 2, etc., can achieve the function of the known intravenous infusion air pump.

[0031] The input module 3 is electrically connected to the controller 1. The input module 3 is configured to provide user operation to control the liquid driving module 2 to operate by the controller 1. Specifically, the input module 3 can include a plurality of physical buttons. A user can press a portion of the physical buttons to set the flow rate and the flow volume of the input liquid B1 provided by the liquid supply module B to be injected into the living body E by the infusion device A. Alternatively, the user can press another portion of the physical buttons to start or stop the operation of the infusion device A. Of course, the input module 3 is not limited to include the physical buttons. In different embodiments, the input module 3 can be integrated with the display 4 as a touch screen. A user can operate the touch screen to control the infusion device A to start or stop the operation, or to set the flow rate and the flow volume of the input liquid B1 provided by the liquid supply module B to be injected into the living body E by the infusion device A.

[0032] In a specific application, the input module 3 can be a wired or wireless interface (e.g., a USB interface, a Bluetooth interface, a Wi-Fi interface, etc.). An external electronic device (e.g., a smart phone, a tablet computer, a remote server, etc.) can transmit information to the infusion device A through the input module 3 in a wireless or wired manner. The infusion device A can be controlled to start or stop the operation, or to set the flow rate and the flow volume of the input liquid B1 provided by the liquid supply module B to be injected into the living body E.

[0033] The display 4 is electrically connected to the controller 1. When a user operates the input module 3, the controller 1 can control the display 4 to display the flow rate and the flow volume. The user can operate the input module 3 and watch the display 4 to set the flow rate and the flow volume of the input liquid B1 provided by the liquid supply module B to be injected into the living body E by the infusion device A. It is noted that in an embodiment in which the infusion device A does not include the display 4, the input module 3 can include a knob. A user can operate the knob to control the infusion device A to inject the input liquid B1 into the living body E at different flow rates and flow volumes.

[0034] The detection module 5 is configured to detect the state of the section of the tube C adjacent to the needle D and to generate detection information 51 accordingly. The detection module 5 can be connected to the controller 1 in a wired or wireless manner. The controller 1 can control the detection module 5 to operate, and the detection module 5 can transmit the detection information 51 to the controller 1. The controller 1 can determine whether the blood of the living body E flows back to the section of the tube C adjacent to the needle D according to the detection information 51.

[0035] ​In actual application, the detection module 5 can be fixed to the section of the tube C adjacent to the needle D by relevant fixing member; or, the detection module 5 can be an assembly independent of the tube C, and the detection module 5 can be set upright on the desktop, and when the detection module 5 is in operation, the position of the organism E inserted with the needle D can be placed below the detection module 5, so that the detection module 5 can detect the section of the tube C adjacent to the needle D.

[0036] Please refer to Figures 1 to 3 , Figure 3 The flowchart shown is the blood return detection procedure of the present application. When the relevant personnel inserts the needle D into the blood vessel of the organism E and starts the infusion device A, the controller 1 controls the liquid driving module 2 to act, and the input liquid B1 provided by the infusion supply module B is injected into the organism E through the tube C and the needle D at a predetermined flow rate and a predetermined flow volume.

[0037] When the infusion supply module B injects the input liquid B1 into the organism E, the controller 1 performs a blood return detection procedure. In actual application, the controller 1 can estimate that the input liquid B1 has been injected into the organism E by controlling the operation time of the infusion supply module B, for example, the controller 1 can start the blood return detection procedure after controlling the infusion supply module B to operate for a predetermined time (for example, 2 minutes). In one embodiment, the predetermined time can be modified by the user.

[0038] In another embodiment, the infusion device further comprises an infusion blocking module to block or reduce the pressure generated by the liquid driving module on the infusion in the tube (for example, to reduce the potential energy of the infusion in the tube near the needle from the tube near the liquid driving module) to accelerate the blood return of the organism to the section of the tube adjacent to the needle, so that the tube near the needle is more likely to appear blood return state. The infusion blocking module can be located below the liquid driving module, or can be located at an appropriate position of the tube between the liquid driving module and the needle. In one embodiment, the infusion blocking module can be a pressurizing device that pressurizes the tube to flatten the tube; another embodiment of the infusion blocking module can be an electric water valve, and the controller 1 outputs a control signal to control the actuation of the electric water valve.

[0039] In another embodiment, the controller 1 may determine whether the infusion fluid B1 has entered the organism E by detecting the operation of the infusion supply module B. For example, the infusion supply module B may include a motor. After controlling the motor to operate, the controller 1 will synchronously monitor the motor's current. When the infusion fluid B1 enters the organism E, the motor's current will change significantly. At this time, the controller 1 can determine that the infusion fluid B1 has entered the organism E and start executing the blood return detection procedure accordingly. Alternatively, the infusion supply module B may include a flow rate detector. The controller 1 is electrically connected to the flow rate detector, which is used to detect the flow rate of the infusion fluid B1 in the tube C. When the controller 1 determines through the flow rate detector that the flow rate of the infusion fluid B1 has slowed down, the controller 1 will determine that the infusion fluid B1 has entered the organism E, and the controller 1 can start executing the blood return detection procedure.

[0040] The blood return test procedure includes the following steps:

[0041] Stop driving step S1: Control the liquid driving module 2 to stop operating, so that the input liquid B1 is no longer injected into the organism E through the tube C;

[0042] Judgment step S2: Control detection module 5 detects the state of the section of tube body C adjacent to needle D to generate detection information 51, and judges whether the blood of organism E flows back to the section of tube body C adjacent to needle D based on detection information 51.

[0043] If the controller 1 determines, based on the detection information 51, that the blood of the organism E has not flowed back to the section of the tube C adjacent to the needle D, then it executes step S31: determining that an extravasation has occurred around the needle D, and generating a corresponding prompt message 11.

[0044] If the controller 1 determines, based on the detection information 51, that the blood of the organism E has flowed back to the section of the tube C near the needle D, then step S32 is executed: determine that there is no needle leakage around the needle D.

[0045] It should be noted that, in order to facilitate Figure 3 The document clearly illustrates the process of the leak detection method of this application in practical applications. Figure 3 Before the stop-drive step S1, an initial step S0 is also shown: controlling the liquid drive module to operate, so that the input fluid provided by the infusion supply module is injected into the organism through the tube and needle at a predetermined flow rate and predetermined flow rate. That is to say, before executing the stop-drive step S1 included in the blood return detection procedure of this application, the input fluid must first be injected into the organism, but how the input fluid is injected into the organism can be selected according to the needs, and the blood return detection procedure of this application does not impose any restrictions on it.

[0046] In actual applications, after the controller 1 generates the prompt information 11, the controller 1 can transmit the prompt information 11 to the display 4 to prompt the user that the needle D is in the needle leakage condition. For example, when the controller 1 determines that the needle D is in the needle leakage condition, the user can see the prompt text such as "needle leakage condition" on the display 4. Conversely, if the controller 1 determines that the needle D is not in the needle leakage condition, the controller 1 can transmit another prompt information to the display 4, and the user can see the prompt text such as "no needle leakage condition" on the display 4. In different embodiments, the controller 1 can transmit the prompt information 11 to an external electronic device (such as a smart phone, a tablet computer, a remote server, etc.) through a wired or wireless manner to notify the relevant personnel.

[0047] In one embodiment, the detection module 5 can include a light emitting unit (such as a light emitting diode) and a light receiver. In the determination step S2, the controller 1 can control the detection module 5 to actuate the light emitting unit to emit a detection light beam to the section of the tube C adjacent to the needle D, and the light receiver can receive the detection light beam reflected by the liquid in the tube C to generate a detection information 51. Then, the controller 1 can obtain the detection information 51 through a wired or wireless manner, and determine whether the blood of the living body E flows back to the section of the tube C adjacent to the needle D according to the detection information 51.

[0048] As mentioned above, generally, the oxyhemoglobin in the blood of the human body can absorb infrared light with a wavelength of 850-1000 nanometers, and the deoxyhemoglobin in the blood can absorb red light with a wavelength of 600-750 nanometers. Therefore, in one embodiment, the detection light beam can be infrared light or red light. When the tube C contains blood, most of the red light or infrared light emitted by the light emitting unit of the detection module 5 will be absorbed by the hemoglobin in the blood, and the light receiver of the detection module 5 can only receive relatively weak infrared or red light. Conversely, when the tube C does not contain blood, the red light or infrared light emitted by the light emitting unit of the detection module 5 will not be absorbed, and the light receiver of the detection module 5 can receive relatively strong infrared light.

[0049] In actual applications, the light emitting unit and the light receiver of the detection module 5 can be fixed in a housing, and the housing can be connected with a bandage for binding to the living body E, and a part of the light emitting unit exposed to the housing and a part of the light receiver exposed to the housing can correspond to abutting against the section of the tube C adjacent to the needle D. In different embodiments, the light emitting unit and the light receiver can also be detachably fixed to the section of the tube C adjacent to the needle D, and the light emitting unit and the light receiver can be arranged on two sides of the tube C and face each other. In different embodiments, the detection module 5 can also include a holding mechanism, and the holding mechanism can be held to the section of the tube C adjacent to the needle D, and when the holding mechanism is held to the section of the tube C adjacent to the needle D, the light emitting unit and the light receiver can be arranged to face each other.

[0050] In another specific embodiment, the detection module 5 can include an image capture device. In the judging step S2, the controller 1 can first control the image capture device to capture an image of the section of the tube C adjacent to the needle D to generate a captured image (i.e., the detection information 51), and then determine whether the needle D has a needle leakage condition according to the captured image. In actual applications, the captured image is a color image (but not limited thereto), and the controller 1 can determine whether blood appears in the tube C by analyzing whether the pixels corresponding to the positions in the tube C in the captured image are red. In different embodiments, the detection module 5 can also include an illumination unit for illuminating the image capture range of the image capture device, so that the image capture device can clearly capture the image around the needle D. Similarly to the foregoing description, the image capture device included in the detection module 5 can be arranged in a housing, and the housing can be fixed to the living body, the tube, etc. by a bandage, a holding mechanism, etc. A part of the image capture device exposed to the housing is arranged adjacent to the tube C, and can be used to capture the image in the tube C.

[0051] In summary, the controller 1 of the infusion device A of the present application can execute a blood return detection program after the input liquid B1 is injected into the living body E, so as to determine whether the needle D has a needle leakage problem by whether the blood of the living body E returns to the section of the tube C adjacent to the needle D. If the controller 1 determines that the needle D has a needle leakage problem, the controller 1 will generate a prompt information 11 in real time, and the relevant personnel can know the needle leakage condition in real time, which can greatly reduce the injection site of the living body E, and prevent swelling, skin ulceration, etc. caused by long-term needle leakage.

[0052] Please refer to Figure 1 and Figure 4 , Figure 4Fig. 2 is a block diagram of a second embodiment of the infusion apparatus of the present application. The second embodiment differs from one of the aforementioned embodiments in that the infusion apparatus A further comprises a prompting device 6 electrically connected to the controller 1, and the controller 1 is capable of controlling the prompting device 6 to act.

[0053] The second embodiment differs from the aforementioned embodiments in another aspect in that the input module 3 is capable of generating a detection instruction 31 according to the operation of a user, and when the controller 1 receives the detection instruction 31, the controller 1 will first control the liquid driving module 2 to act so as to inject a detection amount (for example, 10 cc, but not limited thereto) of the input liquid B1 (for example, a medicinal liquid or a non-medicinal liquid) into the living body E, and then execute a blood return detection procedure; if the controller 1 determines that a needle leakage condition occurs around the needle D, the controller 1 will transmit a prompting information 11 to the prompting device 6 so as to prompt the user that the needle leakage condition occurs around the needle D; if the controller 1 determines that the needle leakage condition does not occur around the needle D, the controller 1 will control the prompting device 6 to act correspondingly so as to prompt the user that the needle leakage condition does not occur around the needle D.

[0054] Specifically, the prompting device 6 may, for example, comprise at least one of a display 61, a sound playing unit 62 and a light emitting unit 63. The input module 3 may, for example, comprise a test button 3A, and after the user (for example, a relevant medical staff) connects one end of the tube C to the infusion apparatus A, connects the other end of the tube C to the needle D, and inserts the needle D into the living body E, the user can press the test button 3A so as to make the input module 3 generate the detection instruction 31.

[0055] When the controller 1 receives the detection instruction 31, the controller 1 will control the liquid driving module 2 to act so as to inject the detection amount of the input liquid B1 into the living body E, and at the same time, the controller 1 can also control the display 61 of the prompting device 6 to display relevant prompting words such as "a blood return detection procedure is being performed…"; after the detection amount of the input liquid B1 is injected into the living body E, the controller 1 will continue to execute the blood return detection procedure.

[0056] After the controller 1 executes the blood return detection procedure, if the controller 1 determines that the needle leakage condition occurs around the needle D, the controller 1 can control the display 61 of the prompting device 6 to display relevant prompting words such as "a needle leakage condition occurs", and the controller 1 can also control the sound playing unit 62 of the prompting device 6 to emit corresponding sound, and control the light emitting unit 63 of the prompting device 6 to emit corresponding light.

[0057] On the contrary, if the controller 1 determines that there is no needle leakage condition around the needle D, the controller 1 can control the display 61 of the prompting device 6 to display a relevant prompt text such as "no needle leakage condition", and the controller 1 can also control the sound playing unit 62 and the light emitting unit 63 of the prompting device 6 to play a specific sound and emit a corresponding light.

[0058] In summary, after the user has completed the installation of the infusion device A, the tube C and the needle D, the user can press the test button 3A (i.e. operate the input module 3) to make the controller 1 inject a test amount of the input liquid B1 into the living body E and execute the blood return detection procedure. Then, the user can know whether there is a needle leakage condition by the operation status of at least one of the display 61, the sound playing unit 62 and the light emitting unit 63 of the prompting device 6. If there is no needle leakage condition, the user can operate the infusion device A to inject the input liquid B1 into the living body E at a predetermined flow rate and flow volume. Otherwise, the user can know that there is a needle leakage condition and check and adjust the tube C and the needle D. It is worth mentioning that in actual applications, the display 61 of the prompting device 6 can also be integrated with the aforementioned display 4 as a single display.

[0059] Please refer to Figure 1 and Figure 5 , Figure 5 is a block schematic diagram showing a third embodiment of the infusion device of the present application. The difference between the present embodiment and one of the aforementioned second embodiments is that the controller 1 can execute an infusion procedure to inject a predetermined amount of the input liquid B1 into the living body E. Specifically, when the controller 1 executes the infusion procedure, the controller 1 controls the liquid driving module 2 to inject the input liquid B1 provided by the infusion supply module B into the living body E at a predetermined flow volume and flow rate, and finally the living body E will be injected with the predetermined amount of the input liquid B1.

[0060] In one of the specific applications, the input module 3 can be, for example, capable of generating infusion information 32 in response to the operation of the user, and the input module 3 can transmit the infusion information 32 to the controller 1, and the controller 1 can execute the infusion procedure in accordance with the infusion information 32 when the controller 1 receives the infusion information 32. For example, the input module 3 can include a plurality of physical buttons, and the controller 1 can control the display 4 to display corresponding information in accordance with the operation condition of the physical buttons, and the user (e.g. a medical staff) can set the infusion amount per minute, the infusion speed per minute, the total infusion amount, etc. of the input liquid by operating the physical buttons and watching the values displayed on the display 4 in accordance with the condition of the patient (e.g. a human being, a pet, etc.), and the input module 3 can generate corresponding infusion information 32 (e.g. including data of the infusion amount per minute of the input liquid, the total infusion amount of the input liquid, the total infusion time of the input liquid, etc.) in response to the operation of the user, and the input module 3 can transmit the infusion information 32 to the controller 1, and the controller 1 can execute the infusion procedure in accordance with the relevant data included in the infusion information 32 when the controller 1 receives the infusion information 32.

[0061] Another difference between the present embodiment and the aforementioned second embodiment is that when the controller 1 receives the detection instruction 31, if the controller 1 is executing the infusion procedure, the controller 1 will first stop executing the infusion procedure and execute the blood return detection procedure, and if the controller 1 determines that there is no needle leakage condition around the needle D after executing the blood return detection procedure, the controller 1 will continue to execute the infusion procedure and control the prompt device 6 to perform corresponding actuation to prompt the user that there is no needle leakage condition around the needle D, and if the controller 1 determines that there is a needle leakage condition around the needle D after executing the blood return detection procedure, the controller 1 will not continue to execute the infusion procedure and control the prompt device 6 to perform corresponding actuation to prompt the user that there is a needle leakage condition around the needle D.

[0062] In short, during the execution of the infusion procedure by the controller 1 to infuse the predetermined amount of the input liquid B1 into the living body E, if the user operates the input module 3 to make the input module 3 transmit the detection instruction 31 to the controller 1, the controller 1 will stop executing the infusion procedure and execute the blood return detection procedure, and the controller 1 will determine whether to continue the infusion procedure in accordance with whether there is a needle leakage condition around the needle D after executing the blood return detection procedure.

[0063] For example, when the user has correctly installed the tube C, the needle D and the infusion device A, and the user operates the infusion device A to start the infusion device A to inject the input liquid B1 into the organism E at the pre-set flow rate and the pre-set flow rate, if the user finds that the flow rate of the input liquid B1 in the tube C is different from the pre-set flow rate, the user can operate the input module 3 to make the input module 3 transmit the detection instruction 31 to the controller 1, thereby making the controller 1 first suspend the execution of the infusion program and execute the blood return detection program. In this way, the user can confirm whether the flow rate of the input liquid in the tube C is slowed down due to the occurrence of the needle leakage condition. Conversely, if the controller 1 determines that there is no needle leakage condition around the needle D, the user can check whether the tube C is pressed by external force or has other problems.

[0064] As described above, the infusion device A according to the embodiment can allow the user to set the flow rate and the flow rate at which the infusion device A injects the input liquid into the organism E by operating the input module 3, and generate the infusion information 32. When the controller 1 executes the infusion program according to the infusion information 32, the user can press the test button 3A at any time to make the controller 1 suspend the current input program and execute the blood return detection program to confirm whether there is a needle leakage condition.

[0065] In one of the different embodiments, during the execution of the infusion program by the controller 1, the controller 1 can also automatically execute the blood return detection program once every predetermined time (for example, 10 minutes) to determine in real time whether there is a needle leakage condition.

[0066] In actual application, if the input liquid is a drug liquid, the controller 1 can first control the liquid driving module 2 to inject a detection amount of the drug liquid into the organism E and execute the blood return detection program before executing the infusion program. If the controller 1 determines that there is no needle leakage condition around the needle D after executing the blood return detection program, the controller 1 will continue to execute the infusion program to inject the remaining amount of the drug liquid into the organism E, and the remaining amount is the difference between the pre-set amount and the detection amount. If the controller 1 determines that there is a needle leakage condition around the needle D after executing the blood return detection program, the controller 1 will not continue to execute the infusion program, and the controller 1 will transmit the prompt information to the prompt device 6 to prompt the user that there is a needle leakage condition around the needle D.

[0067] Specifically, assume that the user sets the infusion device A to inject 300 cc of the medicine into the living body E within 1 hour by operating the input module 3. After the user starts the infusion device A, the controller 1 can first inject 10 cc of the medicine into the living body E and perform the blood return detection procedure. If the controller 1 determines that the needle D does not have the needle leakage condition, the controller 1 will control the liquid driving module 2 to inject the remaining 290 cc of the medicine into the living body E at the pre-set flow rate and flow speed according to the user's setting. Conversely, if the controller 1 determines that the needle D has the needle leakage condition, the controller 1 will not inject the remaining 290 cc of the medicine into the living body E.

[0068] Please refer to Figure 1 and Figure 6 , Figure 6 shows a block diagram of a fourth embodiment of the infusion device of the present application. The biggest difference between this embodiment and the third embodiment described above is that the infusion device A can further include a withdrawing device 7 connected to the tube C, and the withdrawing device 7 is electrically connected to the controller 1. After the controller 1 injects the detection amount of the medicine (i.e. the input liquid B1) into the living body E and performs the blood return detection procedure, if the controller 1 determines that the needle D has the needle leakage condition, the controller 1 can control the withdrawing device 7 to operate to withdraw the medicine injected into the living body E through the tube C, thereby avoiding the medicine from flowing out of the blood vessel to cause damage to part of the tissues of the living body E. In addition, the withdrawing device 7 can also serve as an embodiment of the infusion blocking module, and the withdrawing device 7 can reduce the potential of the infusion in the tube near the needle from the tube near the liquid driving module to accelerate the blood return of the living body to the section of the tube adjacent to the needle.

[0069] Please refer to Figure 5 and Figure 7 , Figure 7 shows a block diagram of a fifth embodiment of the infusion device of the present application. The biggest difference between this embodiment and the third embodiment described above is that the liquid driving module 2 is further connected to an auxiliary liquid supply unit F, and the auxiliary liquid supply unit F is further connected to the tube C. If the controller 1 determines that the needle D has the needle leakage condition, the controller 1 will not perform the infusion procedure, and the controller 1 will control the liquid driving module 2 to inject the auxiliary liquid F1 provided by the auxiliary liquid supply unit F into the living body E. The auxiliary liquid is used to dilute or neutralize the medicine, or the auxiliary liquid is used to assist the living body to absorb the medicine.

[0070] As mentioned above, in the case that the controller 1 injects the biological body with the medicine liquid (i.e. the aforementioned input liquid B1) before executing the blood return detection procedure, if the controller 1 determines that the needle D has a needle leakage condition after executing the blood return detection procedure, the controller 1 can control the withdrawal device 7 to operate to withdraw the medicine liquid injected into the biological body, or the controller 1 can control the liquid driving module 2 to operate to inject the auxiliary liquid provided by the auxiliary liquid supply unit F into the biological body E to dilute the medicine liquid or to assist the biological body to absorb the medicine liquid, thereby greatly avoiding the situation that the relevant tissues of the biological body are damaged by the medicine liquid due to the needle leakage condition.

[0071] Please refer to Figure 5 and Figure 8 , Figure 8 a schematic diagram of a sixth embodiment of the infusion device of the present application is shown. The present embodiment is most different from the aforementioned third embodiment in that the liquid driving module 2 is further connected to the detection liquid supply unit G, and the detection liquid supply unit G is further connected to the tube C.

[0072] After the controller 1 receives the infusion information 32, the controller 1 can first control the liquid driving module 2 to operate to inject the detection liquid G1 into the biological body E in a detection amount, and execute the blood return detection procedure. If the controller 1 determines that the needle D does not have a needle leakage condition after executing the blood return detection procedure, the controller 1 will execute the infusion procedure according to the infusion information 32 to inject the medicine liquid into the biological body E in a predetermined amount. If the controller 1 determines that the needle D has a needle leakage condition after executing the blood return detection procedure, the controller 1 will not execute the infusion procedure, and the controller 1 will transmit a prompt information to the prompt device 6 to prompt the user that the needle D has a needle leakage condition. In other words, the controller 1 first injects the biological body with the detection liquid which will not cause damage to the biological body before executing the infusion procedure, and executes the blood return detection procedure. In this way, even if the controller 1 determines that the needle D has a needle leakage condition after executing the blood return detection procedure, the biological body will not be damaged.

[0073] Please refer to Figure 1 and Figure 9 , Figure 9This is a block diagram illustrating the seventh embodiment of the infusion device of this application. As shown, the biggest difference between this embodiment and the aforementioned fourth embodiment is that the infusion device A further includes a blockage detector 8. The blockage detector 8 is used to detect the flow of the input fluid B1 within the tubing C. When a blockage occurs in the input fluid B1 within the tubing C, the blockage detector 8 generates a blockage signal 81 and transmits the blockage signal 81 to the controller 1. For example, the blockage detector 8 may include a flow rate detection unit and a processor. The flow rate detection unit can detect the flow rate of the input fluid B1 within the tubing C in real time. The processor is electrically connected to the flow rate detection unit, and when the flow rate detection unit detects a significant slowdown in the flow rate of the input fluid B1 within the tubing C, the processor sends a blockage signal 81 to the controller 1.

[0074] When controller 1 executes the infusion procedure, controller 1 will synchronously control the operation of the blockage detector 8. If controller 1 receives a blockage signal 81, controller 1 will stop executing the infusion procedure and execute the blood return detection procedure. If controller 1 determines that there is a needle leak around the needle D after executing the blood return detection procedure, controller 1 will not execute the infusion procedure and will send a prompt message 11 to the prompting device 6 to inform the user that there is a needle leak around the needle D. If controller 1 determines that there is no needle leak around the needle D after executing the blood return detection procedure, controller 1 will not execute the infusion procedure and will send another prompt message to the prompting device 6 to inform the user that the tubing C is blocked. For example, the user can see a prompt message such as "No needle leak has occurred, but the tubing is blocked" on the display 61 of the prompting device 6.

[0075] Please see Figure 10 This diagram illustrates the flow chart of the needle leakage detection method of this application. The needle leakage detection method of this application is executed by the controller of an infusion device. The infusion device is connected to an infusion fluid supply unit and a tubing body. One end of the tubing body is connected to a needle. The infusion device can inject the infusion fluid provided by the infusion fluid supply unit into the organism at a predetermined flow rate and volume through the tubing body and the needle. During the injection of the infusion fluid into the organism, the controller of the infusion device can execute the needle leakage detection method. For specific implementation details of the infusion device, controller, tubing body, and needle described in this embodiment, please refer to the foregoing embodiments, which will not be repeated here. Of course, the infusion device described in this embodiment is not limited to the infusion device described in the foregoing embodiments.

[0076] The method for detecting missing needles in this application includes:

[0077] Stop driving step SX1: Stop injecting the input fluid into the organism;

[0078] Judgment step SX2: Control a detection module to detect the state of the section of the tube body adjacent to the needle, so as to generate detection information, and determine whether the blood of the organism flows back to the section of the tube body adjacent to the needle based on the detection information;

[0079] If it is determined that the blood of the organism has flowed back to the section of the tube near the needle, then step SX31 is executed: determine that a needle leak has occurred around the needle and generate a corresponding prompt message.

[0080] If it is determined that the organism's blood has not flowed back to the section of the tube near the needle, then proceed to step SX32: determine that there is no needle leakage around the needle.

[0081] For a description of the detection module described in this embodiment, please refer to the foregoing embodiments, which will not be repeated here. Of course, as long as the detection module can generate enough information for the controller to determine whether there is blood flowing back into the tube from the section of the tube near the needle, the detection module can be different from the foregoing embodiments.

[0082] It should be noted that, in order to facilitate Figure 10 The document clearly illustrates the process of the leak detection method of this application in practical applications. Figure 10 Before the stop-drive step SX1, an initial step S0 is also shown: controlling the liquid drive module to operate, so that the input fluid provided by the infusion supply module is injected into the organism through the tube and needle at a predetermined flow rate and predetermined flow rate. That is to say, before performing the stop-drive step SX1 included in the needle leakage detection method of this application, the input fluid must first be injected into the organism, but how the input fluid is injected into the organism can be selected according to the needs, and the needle leakage detection method of this application does not impose any restrictions on it.

[0083] In summary, the infusion device and needle leakage detection method of this application can help relevant personnel to detect and resolve needle leakage in real time, thereby significantly reducing the harm caused to organisms by needle leakage.

[0084] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Therefore, all equivalent technical changes made using the description and drawings of this application are included within the protection scope of this application.

Claims

1. An infusion device, characterized by The infusion device comprises: a liquid driving module, which is used to connect at least one infusion supply module, and one end of a tube body connected to the liquid driving module, and the other end of the tube body connected to a needle; a detection module, which is used to detect the state of the section of the tube body adjacent to the needle, and correspondingly generate a detection information; a controller, which is electrically connected to the liquid driving module and the detection module, and is used to control the liquid driving module to act, so that the input liquid provided by the infusion supply module is injected into a living body, and a blood return detection procedure is executed, the blood return detection procedure comprises: a stop driving step: controlling the liquid driving module to stop acting; a judgment step: controlling the detection module to detect the state of the section of the tube body adjacent to the needle, so as to generate the detection information, and judge whether the blood of the living body returns to the section of the tube body adjacent to the needle; wherein, if the blood of the living body does not return to the section of the tube body adjacent to the needle, it is determined that a needle leakage condition occurs, and a corresponding prompt information is generated; the input liquid is a drug liquid, and the infusion device further comprises a withdrawal device, which is electrically connected to the controller, and when the controller determines that the needle leakage condition occurs, the controller will control the withdrawal device to act, so as to withdraw the drug liquid injected into the living body through the tube body.

2. Infusion device according to claim 1, characterized in that The detection module comprises a light emitting unit and a light receiver, the light emitting unit emits a detection light beam to the section of the tube body adjacent to the needle, and the light receiver receives the detection light beam reflected by the liquid in the tube body, and generates the detection information accordingly.

3. The infusion device of claim 1, wherein The detection module comprises an image grabber, and the detection information comprises a grabbed image.

4. The infusion device of claim 1, wherein The infusion device further comprises an input module, which is electrically connected to the controller; wherein, when the controller receives a detection instruction output by the input module, the controller will control the liquid driving module to act, so as to inject a detection amount of the input liquid into the living body, and then execute the blood return detection procedure.

5. The infusion device of claim 1, wherein The controller can execute an infusion procedure to control the liquid driving module to inject a predetermined amount of the input liquid into the living body.

6. The infusion device of claim 1, wherein The input liquid is a drug liquid, and the liquid driving module is further connected to an auxiliary liquid supply unit, which is connected to the tube body; when the controller determines that the needle leakage condition occurs, the controller will control the liquid driving module to act, so as to inject an auxiliary liquid provided by the auxiliary liquid supply unit into the living body; wherein, the auxiliary liquid is used to dilute the drug liquid or to assist the living body to absorb the drug liquid.

7. The infusion device of claim 1, wherein The liquid driving module is further connected to a detection liquid supply unit, which is also connected to the tube; wherein the input liquid is a medical liquid, the detection liquid supply unit can provide a detection liquid, the detection liquid is different from the medical liquid; the controller first controls the liquid driving module to inject a detection amount of the detection liquid into the living body, and then executes the blood return detection program.

8. The infusion device of claim 1, wherein The infusion device further comprises a blockage detector for detecting the flow condition of the input liquid in the tube, the blockage detector can generate a blockage signal when the input liquid in the tube is blocked, and the blockage detector can transmit the blockage signal to the controller.

9. The infusion device of claim 1, wherein The infusion device further comprises an infusion hindering module for reducing the potential energy of the input liquid in the tube near the needle from the input liquid in the tube near the liquid driving module to accelerate the blood return of the living body to the section of the tube adjacent to the needle.

Images