CN112755332A - Fluid infusion system and use method thereof - Google Patents

Abstract

The invention relates to a fluid infusion system, which at least comprises an operation analysis unit, a control component and an infusion component, wherein the control component controls the infusion component to inject according to a preset injection speed on the basis of an injection instruction sent by the operation analysis unit, the infusion component comprises a clamping sleeve used for locking an injector, the clamping sleeve is provided with at least one first opening used for instantly switching automatic infusion into manual infusion, and under the condition that the control component responds to a switching instruction sent by the operation analysis unit, the control component controls a push rod used for pushing a push handle of the injector in the clamping sleeve to be separated from the push handle in a certain distance mode, so that the push handle is manually and instantly controlled by a hand through the first opening to conduct infusion. Through the infusion device that can in time switch over automatic infusion and manual infusion for medical personnel intervene automatic infusion in time, protect patient's infusion safety.

Description

Fluid infusion system and use method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a fluid infusion system and a using method thereof.

Background

Intravenous infusion is a method of administering small amounts or a single type of drug substance intravenously using a syringe. However, for a particular drug, the time and rate of infusion needs to be determined according to the patient's condition. However, manual infusion has the disadvantages that: (1) the speed is not stable; (2) the injection cannot be completed in the required time. Relevant clinical cases are as follows.

Case one: a 68 year old patient with a clinical manifestation of abnormal mental performance: the symptom is that the user does not sleep for 24 hours, the door is opened when the user sees the room, and the user does not know the family when the user sees the room! For clear disease diagnosis, the exclusion of the relevant diseases requires a preliminary PET examination! 10mg intravenous infusion of diazepam was required before examination, over a period of 5 minutes! Three PET examinations were not successfully scheduled. The reason is that: the sedative dare not to be injected too much and is worried about causing side effects; and the PET developer exceeds the time limit after the drug acts! Namely, the prior art cannot accurately measure and calculate the safe dosage and the infusion time.

Case two: the boy patient needs to perform lumbar puncture examination on the second day of admission, and the male patient does not cooperate with the female patient. The physician administers diazepam in small doses, 5mg, for greater than 5 minutes of intravenous infusion, prior to pre-examination. The uniform speed and precision of the 2.5ml liquid medicine can not be achieved easily by finishing the manual operation within 5 minutes on average. Moreover, diazepam is not additionally soluble in enzymes and can cause discoloration. In this case, too, the infusion rate cannot be calculated accurately and a uniform infusion can be achieved.

Case three: patients of age 73, who were admitted to the hospital with lung infection, had received neurology as a cerebral infarction. The patient who is admitted to the hospital on the next day has rapid heart rate and rapid respiration and cough with pink foam sputum and has acute left heart failure with respiratory failure, and the intubation of the trachea is completed! Patient's tooth close dysphoria! Force 5mg hydrostatic push given following the doctor's advice, patient calm at 2.5mg infusion! Successful intubation! That is, current automatic infusion devices are not capable of automatically stopping infusion based on changes in patient condition.

Based on the above practical cases, although the prior art has a device for partial automatic infusion, the prior automatic infusion device is huge, the operation complexity is also improved, medical staff needs to be additionally trained on the use mode of the device, the medical staff cannot be allowed to perform infusion or stop with one hand under emergency conditions, and the device can also take into account the change of the state of a patient. Moreover, the infusion rate is related to the status of the patient, privacy disorders. The infusion rate cannot be analyzed by scientific calculation and the infusion is stopped in time when the patient's condition changes. Therefore, there is a need for an infusion device that can allow a healthcare worker to operate with one hand and that can be portable, where the infusion protocol of the infusion device needs to be scientifically analyzed to provide an additional reference to the healthcare worker.

Patent document CN107456625B discloses a fluid infusion device and a drive system thereof. Wherein the drive system comprises: an active member; the driving mechanism is used for driving the driving component to rotate; a driven member configured to cooperate with the driving member to enable relative rotation while causing relative displacement therebetween, wherein one of the driving member and the driven member is configured to: responsive to resistance of movement of the other of the driving member and the driven member in a first direction pushing a piston of the fluid infusion device, generating movement in a second direction opposite the first direction; and a detection mechanism for detecting whether or not a movement of one of the driving member and the driven member in the second direction satisfies a set condition. With the related embodiments of the present invention, accurate and timely determination of the status of the fluid infusion device is facilitated. Although this type of infusion device is capable of automatic infusion of a certain drug. However, the fluid infusion device does not facilitate a quick transition from automatic infusion to manual infusion. For patients with emotional states and unstable spirits, the injection process is unstable when injecting the spiritual drugs, and the phenomenon of change of the injection condition is easy to occur, and medical staff needs to change the injection into manual infusion to complete the infusion of the medicament urgently. Therefore, how to realize the instant conversion between automatic infusion and manual infusion is an unsolved problem in dealing with emergency situations.

Patent CN 110038190 a discloses an automatic iv injection device which provides a feasible small electromechanical device that uses a stepping motor to ensure a constant injection, and also discloses using a resistance speed regulation to set the injection speed and the injection amount. The patent is designed without considering the problem of certain dangerous drugs, particularly the injection of mental control drugs, and the clinical intravenous bolus injection is often used for the dangerous drugs or the emergency requirements, so the application range is extremely limited.

Although the infusion device can perform automatic infusion and manual infusion on a certain medicine, the problem of convenience in operation of medical staff is not considered, for example, the injection angle is adjusted according to the body micromotion of a patient, and the infusion device is not suitable for the infusion of mental control medicines, and the injection speed is required to be adjusted at any time according to the state change of the patient. In addition, such devices are suitable for long-term use by patients, and are less suitable for use in non-acute episodes than in emergency intravenous infusion applications.

External equipment for realizing intravenous infusion by using an electric motor is also utilized in the prior art, but the external equipment in the prior art is controlled in a simpler way by using the electric motor, the infusion is started in a switch control way, and the speed and the start and stop are determined by medical staff only. For example, external automatic propulsion devices attached to conventional syringes have been disclosed in the prior art, which essentially utilize a stepper motor to effect propulsion. Since it is directly mounted on the rear of the syringe, the length, weight and center of gravity of the syringe after mounting are greatly changed, resulting in a significant change in the manner of operation. When medical staff face emergency, the common operation method of the medical staff is changed, and uncertain risks can be brought to mental control type medicine infusion, so that the automatic infusion equipment is not used for clinical records, particularly mental control type medicines.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

In view of the deficiencies of the prior art, the present invention provides a fluid infusion system, which at least comprises an operation analysis unit, a control component and an infusion component,

the control component controls the infusion component to automatically inject according to a preset injection speed based on the injection instruction sent by the operation analysis unit. When the infusion assembly installs injection device additional, can lead to whole injection device length, volume and weight all to appear changing, its injection mode still needs additional training moreover, has constituted the study cost to medical personnel on the contrary (this is also the reason that other similar equipment among the prior art is difficult to popularize and use). However, by means of the invention, the medical staff can obviously reduce the operation risk when injecting the mental control medicine due to the simultaneous attention of the injection scheme and the inquiry information and/or the medical operation information. Moreover, when a dangerous condition occurs, the traditional injector can stop infusion only by being pulled out immediately, and for other automatic infusion devices in the prior art, medical staff often hesitate to know how to stop, but the invention adopts an injection mode allowing single-hand operation, so that the infusion can be stopped immediately without pulling out a needle, and special risks under special conditions are effectively avoided. Particularly, the technical scheme of the invention can distinguish personal risks of medical care personnel from other systemic risks, is beneficial to the comprehensive popularization of automatic infusion equipment, can be beneficial to the correlation analysis between intravenous infusion medicines and disease conditions, and has important significance for the causal relationship analysis of medical treatment, medicines and patient diseases. The causal relationship analysis can be deep into the desensitized patient data (certain key information of the patient can be irrevocably incorporated into the injection scheme analysis), so the causal relationship and database is particularly beneficial to the medical informatization and intelligentization construction in the future.

Wherein the infusion set includes a snap-fit sleeve for locking the syringe. The clamping sleeve is provided with at least one first opening for switching automatic infusion into manual infusion in real time. Under the condition that the control component responds to a switching instruction sent by the operation and analysis unit, the control component controls a pushing rod which is used for pushing a pushing handle of the injector and is arranged in the clamping and fixing sleeve to be separated from the pushing handle in a certain distance, so that the pushing handle is manually controlled by a hand through the first opening in real time for infusion.

Preferably, a micro motor is arranged at one end of the clamping sleeve, and a pushing rod connected with the micro motor moves according to a preset pushing groove, so that the pushing rod contacts the pushing handle and moves according to a preset injection speed.

Preferably, one end of the push rod, which is in contact with the push handle, is provided with at least one sensing probe,

the sensing probe is in communication connection with the operation analysis unit, and the operation analysis unit determines abnormal conditions in the injection process based on changes of pressure values between the pushing rod and the pushing handle transmitted by the sensing probe.

Preferably, at least one clamping portion for clamping the syringe tube in a manner of locking the extending edge of the syringe is arranged in the clamping sleeve, the clamping portion is arranged adjacent to the at least one second opening, and the clamping portion can provide a stressed position for at least one finger during manual infusion under the condition that the control assembly responds to a switching instruction sent by the operation analysis unit.

Preferably, the operation analysis unit is respectively connected with at least one first information interaction port and at least one second information interaction port, and the operation analysis unit analyzes the safety risk and/or the operational contradiction of the injection scheme based on the individual privacy information received by the first information interaction port and the injection scheme and/or the medical operation information received by the second information interaction port.

Preferably, in the case that the injection scheme contradicts the personal characteristic information, the inquiry information and/or the medical operation information of the patient, the operation analysis unit feeds back at least one injection scheme adjustment suggestion to the connected information interaction port. By means of the automatic infusion assembly, it is possible to objectively determine whether there is a problem with the infusion protocol depending on the patient's condition (physical condition), and to minimize the operational risk for the infusion personnel. For emergency situations, when one of the patient's condition and the injection scheme is wrong, medical disputes are often caused, and at the moment, the specific operating personnel can be used as the first responsible person to bear huge psychological pressure. Thus, no automatic infusion device would be accepted by medical personnel until the use of the present device, since existing automatic infusion devices are not able to give any support other than automatic infusion. After the risk occurs, because new equipment is introduced, an uncertain risk is brought to the operator. When the device of the invention is put into use, the liability can be determined more objectively, if unfortunate, by attributing both the injection protocol originating from the prescription and the patient's condition originating from the patient or his family members. The technical scheme of the invention can be clinically applied because the injection instructions and related data can be objectively restored.

Preferably, the operation analysis unit feeds back the injection speed and/or the injection duration of at least one injection scheme to the connected information interaction port based on the preset time of the medical operation information.

Speed and duration are also extremely important aspects for responsibility division when objectively tracing data. According to the invention, the operation analysis unit records the time point and the injection duration of a single injection while displaying the speed and the duration, so that historical data can be formed for automatically demonstrating the use of the equipment, and beneficial data can be comprehensively and automatically accumulated in the future. The historical data referred to herein is the storage of injection rates and durations in relation to patient personal characteristic information, interrogation information and/or medical procedure information, and in particular also in relation to injection protocols. These data accumulation storage processes are done in a desensitized manner (i.e., in the case of hidden patient privacy data), and the accumulated data can be used back to support medical informatization construction, which forms the basis for causal relationship analysis between electronic prescriptions (i.e., the injection protocol referred to herein or derived from analysis thereof) and patient conditions.

Preferably, the operation analysis unit is provided with at least one programmable port, and the operation analysis unit performs reasonable index analysis on the personal characteristic information, the inquiry information, the medical operation information and/or the injection scheme drawn by the medical staff based on the operation analysis algorithm/operation analysis scheme input by the programmable port. The programmable interface can interact with various injection scheme software and databases already disclosed in the prior art, and provides a data interface for the automatic infusion device of the invention to be incorporated into a causal analysis system.

Preferably, the operation analysis unit sends an execution time range of the injection scheme through at least one information interaction port based on preset time of the medical operation information, and/or the operation analysis unit sends prompt information through at least one early warning module when the execution time range is close to. When the causal relationship is analyzed, the 'execution time range' and the 'prompt information sent by the early warning module' form key time parameters, and particularly, if the interruption condition occurs, the 'execution time range' can still be used for accurately analyzing the working time of the automatic infusion equipment according to the execution time accumulated by multiple starts, so that the medicine quantity is deduced. By means of the 'warning module sending out prompt information', the infusion end time can be accurately determined; in particular, the operation analysis unit can respond to the prompt message sent by the early warning module to execute data correlation operation, in particular to form data correlation operation between an electronic prescription (i.e. the injection scheme or the injection scheme obtained by analysis) and the condition of a patient, thereby supporting the future causal analysis process.

The invention provides a use method of a fluid infusion system, which is characterized in that the system at least comprises an operation analysis unit, a control component and an infusion component,

the syringe is locked in the clamping sleeve,

during automatic infusion, the control component controls the infusion component to inject according to a preset injection speed based on the injection instruction sent by the operation analysis unit,

the automatic infusion is immediately switched into manual infusion, the control component responds to a switching instruction sent by the operation analysis unit to control a pushing rod which is arranged in the clamping and fixing sleeve and used for pushing a pushing handle of the injector to be separated from the pushing handle in a certain distance, and therefore the pushing handle is manually and immediately controlled by a hand through the first opening to carry out manual infusion.

Preferably, the privacy information is input into at least one first information interaction port, the inquiry information, the injection scheme and/or the medical operation information is input into at least one second information interaction port,

the operation analysis unit analyzes the safety risk and/or the operation contradiction of the injection scheme based on the personal privacy information received by the first information interaction port and the injection scheme and/or the medical operation information received by the second information interaction port,

confirming the injection protocol if the safety risk is below a risk threshold or if the injection protocol is not inconsistent with the medical procedure information.

Drawings

FIG. 1 is a schematic diagram of the logic blocks of the fluid infusion system of the present invention;

FIG. 2 is a schematic view of a first angled configuration of the infusion assembly of the present invention;

FIG. 3 is a schematic view of a second angle configuration of the infusion assembly of the present invention; .

FIG. 4 is a schematic view of another infusion set in accordance with the present invention;

FIG. 5 is a schematic view of the extended state of the extended memory device of the present invention;

FIG. 6 is a schematic view of the compression-extension-compression variation of the extended memory assembly of the present invention.

List of reference numerals

10: an arithmetic analysis unit; 20: a port; 21: a programmable port; 22: a first information interaction port; 23: a second information interaction port; 30: an infusion device; 31: a control component; 32: an infusion assembly; 33: a prompt component; 40: a display component; 321: a communication line; 322: a micro motor; 323: a propulsion tank; 325: a push handle; 326: clamping and fixing the sleeve; 327: an injector; 328: a push rod; 329: a sensing probe; 331: a clamping part; 332: an extension edge; 333: a first opening; 334: a second opening. 8: an extended memory component; 80: an opening; 81: a main body; 82: an extension table; 83: a first end; 84: a second end.

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

In the prior art, the automatic infusion device is bulky in length, volume and weight, cannot adjust the dosage and advance based on the state change of a patient in the injection process, and cannot control the angle and closing condition of automatic infusion by hand.

In view of the deficiencies of the prior art, the present invention provides a fluid infusion system and a method for using the same, and also provides a fluid infusion device capable of switching between an automatic mode and a manual mode in real time.

Example 1

As shown in fig. 1, the fluid infusion system of the present invention includes at least an arithmetic analysis unit 10, at least one port 20, and at least one infusion device 30. The arithmetic and analytical unit 10 establishes communication connections with the at least one port 20 and the at least one infusion device 30, respectively, for the transmission of data information and the transmission of electrical energy. Preferably, the communication connection may be wired or wireless.

The operation analysis unit 10 may be one or more of a server, an application specific integrated chip, a logic computation chip, and a processor. The operation analysis unit 10 is used for performing comprehensive calculation on the input inquiry information, personal characteristic information, privacy information, medical history information, medical operation information and/or injection scheme, and calculating to obtain a fluid injection scheme matched with the current disease condition of the patient. At least the patient's name, sex, age, injection dosage, injection rate, etc. are included in the infusion protocol. The injection regimen can be calculated, for example, according to the adult usage and amounts specified in the diazepam specification, for example: 10-30 mg of basal anesthesia or vein general anesthesia. Sedation, hypnosis or acute alcohol withdrawal, 10mg is started, and 5-10 mg is added every 3-4 h later as required. The total amount of the 24 hours is limited to 40-50 mg. Beginning to perform intravenous injection on the status epilepticus and serious frequent epilepsy, and increasing the dosage as required or even reaching the maximum dosage every 10-15 min. Tetanus may require a larger dose. Intravenous injection should be slow, 2-5 mg/min.

The ports 20 include a programmable port 21, a first information exchange port 22 and a second information exchange port 23. The programmable port 21, the first information interaction port 22 and the second information interaction port 23 are respectively in communication connection with the operation analysis unit 10.

The programmable port 21 is used for editing and modifying the algorithm executed by the operation analysis unit and the program of the analysis scheme, so as to be more suitable for updating the diagnosis and treatment characteristic schemes of a plurality of departments, thereby improving the accuracy of the operation analysis unit. The programmable port 21 is capable of interfacing with a server, computer, or the like.

The first information exchange port 22 and the second information exchange port 23 may be mechanical ports or virtual ports. The mechanical port can be in data connection with a plurality of terminals only, so that data information can be transmitted. The virtual port may be a program port. For example, the intelligent terminal enters an information interaction interface by scanning the two-dimensional code to input and check information. Preferably, the first information interaction port 22 and the second information interaction port 23 comprise terminal devices capable of performing interactive operations such as information input and display.

The first information interaction port 22 is used for the patient to interactively input personal privacy information, medical history information, personal characteristic information mode and the like. For psychological reasons such as protection of personal privacy and ethics, patients may forget or unwilling to faithfully inform doctors of partial private information such as medication information related to aids, venereal diseases, disease history, etc., which hides certain risks from the doctor's injection protocol determination. Therefore, the patient or the guardian can input the privacy information through the first information interaction port 22 under the condition that the doctor is not visible, so that the privacy of the patient can be protected, and the medical risk that the injection scheme of the doctor is contradictory to the privacy information of the patient can be avoided.

The second information interaction port 23 is used for medical staff to input a plurality of information such as inquiry information, disease judgment information and the like for patients, and can check injection schemes.

Preferably, the arithmetic and analysis unit 10 is connected to at least one display assembly 40 for displaying information related to the injection protocol so that the injection is performed and the subject being performed is able to understand the injection protocol in a timely manner.

The infusion device 30 is used for executing automatic infusion operation according to the injection instruction sent by the operation analysis unit. As shown in fig. 2-3, the infusion device 30 includes at least a control assembly 31 and an infusion assembly 32. The control assembly 31 may be a controller for controlling the infusion rate, infusion time, start, stop, prompt message, etc. operation of the infusion assembly 32.

As shown in fig. 2-3, the infusion set 32 includes at least a micro-motor 322 and a capture sleeve 326. The micro-motor 322 is disposed at one end of the clamping sleeve 326 and establishes a communication link with the control assembly 31. The housing of the clamping sleeve 326 may be a complete hollow cylinder or may be an open cylinder. Open barrel, i.e., the barrel is not a complete circle in radial cross-section, but is half a circle, so long as the syringe 327 can be snapped in place. Preferably, the size of the cavity in the clamping sleeve is matched with that of the medical injector, and the clamping sleeve can be set to be in various specifications. Preferably, the cavity in the captive sleeve is capable of receiving part or all of the volume of the syringe itself. Preferably, the cavity in the retaining sleeve is capable of accommodating the full volume of the syringe, thereby further facilitating the securement of the syringe body to prevent movement of the syringe.

Preferably, the cavity in the clamping sleeve is provided with an elastic layer which is in contact with the surface of the syringe, so that the contact between the cavity of the clamping sleeve and the syringe is tighter, and the clamping sleeve and the syringe cannot slide relatively.

At least one pushing groove 323 and at least one clamping portion 331 are disposed in the clamping sleeve 326. The push groove 323 is provided in a direction parallel to the central axis of the chucking sleeve 326, thereby allowing the push rod 328 of the micro motor 322 to extend in the direction of the push groove 323. The push groove corresponds to the axial position of the push handle 325 of the syringe, thereby allowing the push rod 328 to contact the push handle 325 and push the push handle to inject at a preset rate.

The clamping part 331 can be configured as a clamping component or a clamping groove for clamping the protruding extending edge 332 at one end of the injector, so that the injector body can be prevented from moving, and the part for providing force application for medical care personnel during manual infusion can be used. Preferably, the specific shape of the locking portion 331 can be set according to the shape of the extension side of the syringe.

Preferably, the end of the push rod 328 contacting the push handle is provided with a sensing probe 29 for detecting the guide position

The position of the component, and whether the component is in contact with the push handle or not. Preferably, the sensing probe can be an infrared probe, a position sensor, a pressure sensor and the like, as long as the sensing probe can sense the contact between the push rod and the push handle.

Preferably, the push rod 328 does not directly contact the push handle 325. One end of the pushing groove close to the pushing handle is provided with a guide component. The guide assembly moves within the advancement groove 323 in a manner based on the movable contact of the push handle 325 of the syringe. That is, the flipper assembly does not have a fixed position, but its position is flexible, depending on the contact position of the push handle 325. The guide assembly is in contact with the push handle 325 in a non-pressure contact. The guide assembly is contacted with the push handle in an approximately pressureless mode, and the guide assembly pushes the push handle to perform infusion according to the injection speed in the injection scheme under the pushing action of the push rod. The guide assembly moves on the propelling groove without resistance through the movable shifting assembly, so that the guide assembly can drive the guide assembly on the groove wall of the propelling groove in a small resistance or even a resistance-free mode. Preferably, the displacement assembly may be a sliding slot or a track provided on a slot wall of the propulsion slot. The arrangement of the guiding component can ensure that the moving direction of the push rod 328 can not deviate when the push handle applies force, so that the push handle is more uniform in hand and the moving speed is more stable. The automatic infusion according to the invention takes the problem of injection stop into consideration, and the arrangement of the guide component in the clamping sleeve constitutes the simplest technical scheme, because the length of the guide component and the length of the clamping sleeve are known, and the infusion quantity can be accurately given by only depending on the stroke under the condition of achieving emergency stop by single-hand operation. Accurate support is given to determining the emergency plan when an emergency occurs. In addition, the guide assembly is contacted with the push handle in an approximately pressureless mode, namely the guide assembly is arranged in a floating mode, the guide assembly is arranged in a floating mode to help sudden stop, and convenience is provided for pressure measurement. Preferably, the operation analysis unit associates the travel measurement of the guide assembly with the execution time range and/or the warning information sent by the warning module, and uses the associated data for future causal analysis.

The sensing probe 329 is capable of transmitting the pressure values to the control unit and/or the arithmetic and analysis unit 10 in real time while the push rod 328 is in contact with the pilot assembly. The operation and analysis unit 10 can analyze the movement of the push handle and the injection of the fluid based on the change of the pressure value, so as to further analyze whether the muscle of the patient is stiff or not and whether the needle is broken or not according to the abnormal condition of the fluid.

The arithmetic analysis unit determines the start time of injection based on pressure data and/or pressure application time between the push rod and the guide assembly detected by the sensing probe, and the arithmetic analysis unit determines the end time of injection based on the movement stop time of the push rod; whereby the budget analysis unit determines the duration of the automatic infusion. Advantageously, the side of the float-mounted positioning assembly facing away from the push rod is minimally affected by muscle vibration of the patient, and more accurate pressure data can be provided. Preferably, the guide assembly which is arranged in a floating manner forms a columnar pressure sensing part, and the whole body of the guide assembly realizes power supply and signal transmission by means of a slide way in the clamping sleeve. Cylindrical pressure sensors of 2 to 4 cm diameter are common sensors in the art with a resolution that can meet the range of infusion pressures. Such a cylindrical pressure sensor, together with a rear stepping motor, constitutes a component that is much heavier than an injector, requiring a medical worker to hold it with one hand during injection, and thus, in actual use, constitutes an automatic injection mechanism that extends wholly obliquely downward.

Preferably, the locking sleeve 326 is provided with at least one first opening 333 at a position corresponding to the range of movement of the push handle. Preferably, the first opening 333 may be one or two. In the case where two first openings 333 are provided, the two first openings may be symmetrically provided. The first opening 333 is beneficial for medical care personnel to change automatic infusion into immediate manual infusion when the automatic infusion is stopped, and immediate manual pressing of the push handle can be realized without detaching the injector from the clamping sleeve.

Preferably, the housing outer side surface of the clamping sleeve is provided with at least one protrusion for applying force. Preferably, two protrusions are symmetrically disposed at two ends of the first opening 333, so that when the medical staff presses the push handle, the index finger or middle finger of the hand can fixedly clamp the sleeve to complete the injection.

Preferably, the trim portion 331 of the trim sleeve 326 is adjacently disposed with at least one second opening 334. The second opening 334 is used to fixedly clamp the sleeve when the push handle is pushed by hand. For example, when the medical staff changes to manually push the syringe with one hand, the thumb presses the push handle, and the index finger and/or the middle finger reversely presses the catching portion 331 through the second opening 334, thereby performing the manual injection.

The projections that clamp the outer surface of the housing of the sleeve and the second openings 334 may or may not be present at the same time.

The infusion device 30 of the present invention allows a medical worker to operate with one hand both during automatic infusion and manual infusion, so that the other hand of the medical worker can perform operations such as suspension, injection speed adjustment, immediate manual operation and the like on automatic infusion while observing the mood and state changes of a patient.

Preferably, the fastening sleeve of the present invention is provided with at least one prompting component 33, such as an LED prompting light, connected to the control component. The LED indicator light can display at least three colors such as red, green and yellow to respectively show injectability, injection stopping and human intervention.

The method of generating or analyzing the injection protocol by the arithmetic and analysis unit of the present invention is as follows.

The operation analysis unit 10 performs comprehensive analysis on the input inquiry information, the personal characteristic information, the privacy information, the medical history information, the medical operation information and/or the injection scheme according to a preset analysis scheme, and analyzes whether the injection scheme input by the current medical staff has operation contradiction and/or safety risk with the inquiry information, the personal characteristic information, the privacy information, the medical history information and the medical operation information.

Preferably, in the automatic infusion process, the operation analysis unit predicts a predicted end time of the injection based on the start time of the injection and the injection speed, and when the predicted end time is inconsistent with the medical operation information, the operation analysis unit sends an injection speed adjustment suggestion lower than a safety threshold to the terminal of the medical staff through at least one information interaction port, and when the terminal of the medical staff feeds back confirmation information of the injection speed adjustment suggestion, the operation analysis unit sends an updated injection scheme to the control unit. The time variable in the causal analysis process is key information, "start time of injection" can be determined based on pressure data provided from a sensing probe of the guide assembly or a guide assembly constituting the pressure sensing section, "start time of injection" is determined and recorded only when the pressure data reaches a value exceeding a first threshold value, "end time of injection" is determined and recorded only when the pressure data is lower than a second threshold value. Preferably, the arithmetic analysis unit compares the "predicted end time" with the "end time of injection" for iteratively updating the initial algorithm of the arithmetic analysis unit to optimize the analysis accuracy.

The first threshold value is the starting pressure capable of reflecting the starting movement of the push end, and the actual value is determined according to the specific component type and test at the time of factory shipment. The second threshold value is the pressure capable of reflecting the stop of the push end, and the actual value is determined according to the specific component type and test when the push end leaves the factory. At the moment when the pushing end stops moving, if the pushing rod is still in a pushing state, the second threshold value is larger than the first threshold value.

In the medical information and intelligent wave, the causal analysis is an important subject, and the intravenous infusion constitutes an excellent data object for the causal analysis because of the urgency and the commonness; the invention can effectively form a large amount of desensitization data, establish the relevance between the drug and the patient condition and form a key database for the future causal analysis.

Specifically, in the case that an injection scheme is inconsistent with the operation and/or the safety risk of the inquiry information, the personal characteristic information, the privacy information, the medical history information and the medical operation information, the operation and analysis unit 10 feeds back the risk prompt and the modification suggestion of the injection scheme to the second information interaction port of the medical staff. And the medical staff inputs the modified injection scheme through the second information interaction port based on the received risk prompt and the modification suggestion until the risk value of the injection scheme is lower than the preset risk threshold value. Wherein, the information in the risk prompt does not contain the privacy information of the patient, and only prompts the risk index existing in the medical staff and the modification suggestion. In the invention, under the condition that the patient can input the private information through the first information interaction port and only the person can know the private information, the patient can input the private information more easily to ensure the safe use of personal medicament. Therefore, the medical staff is reminded to modify the injection scheme by matching the invisible personal characteristic information of the medical care with the injection scheme based on the psychological characteristics of the patient, so that the patient wishes to input the privacy information by the operation and analysis unit, and the safety degree of the injection scheme is improved.

On the basis that the medical staff inputs the confirmation instruction for the injection scheme, the operation analysis unit sends a control instruction to the control assembly according to the determined injection scheme, so that the control assembly performs injection according to the determined injection scheme.

Prior art, the patient requires a preliminary PET examination! 10mg intravenous infusion of diazepam was required before examination, over a period of 5 minutes! Three PET examinations were not successfully scheduled. The reason is that: drugs for sedation and fatigue are dare not to be injected more, and the side effect is feared to be caused; and the PET developer exceeds the time limit after the drug acts!

In the present invention, after the patient takes the PET imaging agent, the medical staff inputs the time for taking the PET imaging agent and the scheduled time for the PET examination, and also inputs the injection schedule. The operation analysis unit can analyze whether the current injection scheme has operation contradiction and/or safety risk with the factors based on the current time, the effective time of the PET developing agent, the personal characteristic information of the patient, the inquiry information and the diagnosis information, and analyze and feed back the injection speed, the injection dosage, the injection execution time range and the like which can be borne by the medical staff and the patient. After the medical staff grasps the information of the injection speed, the injection dosage, the injection execution time range and the like which can be borne by the patient, the newly determined injection scheme can be conveniently implemented. Thus, the fluid infusion system of the present invention provides additional information to the healthcare worker in determining the infusion protocol to reduce the difficulty of the healthcare worker in determining the infusion protocol and performing the infusion protocol. Particularly for emergency patients with abnormal and unstable mind, an executable, effective and low-safety-risk injection scheme can be quickly analyzed, and the efficiency of treating the patients can be improved.

In the present invention, the method by which a healthcare worker operates a fluid infusion system is as follows.

When the healthcare worker begins to perform an injection protocol on the patient, the healthcare worker draws the injected medication with the syringe and adjusts to a pre-injection state. Medical personnel will be in the syringe of the state of pre-injection and the solid sleeve of card that the specification matches and adapt to newly fixedly for the syringe imbeds in the solid sleeve of card with stable fixed mode. As shown in fig. 2, the push handle of the syringe is in a movable state. When medical personnel singly hold the solid sleeve of card and prick the needle to the injection site, the position guide subassembly based on the action of gravity with push away the handle with can not make the mode that pushes away the handle removal with push away the handle contact. After the injection angle is adjusted by one hand of the medical staff, the clamping sleeve is stably held. The other hand of the medical care personnel starts a motor switch on the clamping sleeve. After receiving a signal for starting the motor, the control unit controls the motor to rotate according to the preset injection speed, so that the push rod connected with the micro motor is controlled to move according to the preset injection speed. When the push rod 29 is in contact with the push handle, a strong contact signal is sent by the sensing probe 29 to the control unit, so that the control unit calculates the start time of the injection. When the injection is completed and the push rod cannot move, the control unit calculates the end time of the injection. That is, after the injection is completed, the medical staff can close the switch with one hand to turn off the micro motor, and the turn-off time is the end time of the injection. Preferably, the micro motor of the present invention may be a stepping motor.

In the prior art, for emergency infusions of psychotropic drugs, full infusion may not be required to achieve the desired sedated state in the patient. However, manual infusion is too slow because automatic infusion does not timely stop the infusion in response to changes in the patient's mental state. According to the invention, as medical staff controls the injection angle of the clamping sleeve by one hand and pays attention to the injection process, the injection needle head can be stabilized based on the shaking of a mental patient, the needle head is prevented from shifting or falling off, automatic infusion can be stopped in time and the needle can be pulled out based on the change of the mental state of the patient, and thus the side effect of medicines caused by excessive injection is avoided. For example, a 73 year old patient who entered neurology with a cerebral infarction had a coronary heart disease and a pulmonary infection at the time of admission. The patient who is admitted to the hospital on the next day has rapid heart rate and rapid respiration and cough with pink foam sputum and has acute left heart failure with respiratory failure, and the intubation of the trachea is completed! Patient's tooth close dysphoria! The injection protocol was 5mg hydrostatic push given force, with the patient quiet at 2.5mg infusion! Successful intubation! At the moment, the medical staff can turn off the switch in time to pull out the syringe needle, thereby avoiding the injection of excessive force. At this time, the control assembly sends the actual injection time and the injection speed of the injection protocol to the arithmetic and analysis unit. The arrangement is beneficial to the dynamic update of the logical operation relation of the operation analysis unit, so that the reasonable judgment of the injection scheme is more accurate.

In the prior art, the injection speed of automatic infusion devices is constant, which is advantageous for controlling the overall injection completion time. However, the pain sensation from the hydraulic pressure that the patient can withstand is not the same. Some patients can bear more pain and some patients can bear less pain. Particularly for unconscious and mentally unstable adult patients, the obvious painful stimulus easily causes the patients to struggle, and the medical staff has difficulty in controlling the behavior of the adult patients, resulting in the dangerous occurrence of injection or the situation of needle withdrawal. It is therefore necessary to adjust the injection speed as time permits, depending on the injection situation. However, a real difficulty is that the healthcare worker is not certain of the time for completion of the injection after adjusting the injection speed. Particularly where the completion time of the injection of the medicament is associated with subsequent medical procedures, it is more difficult for the healthcare worker to determine whether adjusting the injection speed will affect the subsequent medical procedures, such as the failure of the PET projection agent. Preferably, in response to the deficiencies of the prior art, the display assembly 40 of the present invention displays an injection protocol content that also includes an adjustable injection speed range. For example, the adjustable injection speed range is shown as "+ A, -B", i.e. the current injection speed may at most also be increased by A or decreased by B. Preferably, the clamping sleeve is provided with a speed control assembly connected with the control unit for adjusting the injection speed. The speed control assembly may be a mechanical button or a touch button. Preferably, the speed control assembly can be provided in combination with or adjacent to the switch for convenient operation by the medical personnel.

Preferably, the injection protocol content displayed by the display assembly 40 also includes a predicted remaining time for completion of the injection. The medical staff can adjust according to the reaction of the patient after knowing the adjustable speed range of the injection speed. For example, patients experience intolerable pain and can slow down the rate of injection. For example, when the remaining time of injection is less than the interval time between subsequent medical procedures, the injection speed can be increased when the proper range is not sensitive to the patient.

For fluid infusion, in a conventional medical operation, a medical staff can feel abnormal stiffness of muscles based on a phenomenon of large infusion pressure through pure manual infusion, and can divert attention in a chatting manner to relax a patient so as to facilitate injection. The automatic infusion device injects according to a preset injection speed regardless of whether a muscular region of an injection site of a patient is tense, resulting in a sharp increase in pain of the patient and lacking in humanization. The use of automatic infusion devices tends to make medical personnel more concerned about the progress of the injection and reduce psychological distraction to the patient. Therefore, how to reduce pain during automatic infusion and take care of the stressful mood of the patient are problems which cannot be solved at present.

In the invention, the operation analysis unit compares the pressure value change of the sensing probe in the appointed time of the start of injection with the pressure sample to evaluate whether the injection muscle has over-stiffness. Preferably, the specified time may be 1 minute or 30 seconds.

The pressure samples are input into the analysis operation unit and the storage unit in advance, and refer to the pressure value range of the ordinary people in the relaxed state and the designated injection part. Preferably, the initial pressure sample is provided for adjusting the initial rotation speed of the micro-motor 22, and the subsequent rotation speed is adjusted according to the pressure value variation curve of the sensing probe, thereby implementing a time-sharing adaptive injection scheme under the precondition of coping with the tension. Preferably, the initial pressure sample is corrected as follows.

Corrections to the initial pressure sample are derived by correlating operational contradiction indices and/or safety risk indices for an injection protocol analytically determined based on the patient's personal characteristics information, interrogation information, medical procedure information, and/or an injection protocol drawn up by a healthcare worker with the initial pressure sample. During the injection, by feeding back the injection speed and/or the injection duration of at least one injection protocol to the connected information interaction port based on the preset time of the medical operation information, the injection speed and/or the injection duration can be used to adjust the subsequent rotation speed to perform a "time-sharing" adaptive injection protocol, thereby coping with stress and pain intolerance.

For example, the operation analysis unit analyzes whether the patient has the possibility of muscular stiffness to influence the injection of the medicament by changing the pressure value of the push handle within 30 seconds. At 30 seconds, if the pressure value of the push handle of the injection device of the patient is obviously different from the pressure sample, the operation analysis unit sends an instruction to the control unit to adjust the color of the LED indicator lamp, so that the medical care personnel is prompted to carry out psychological persuasion or care on the patient, and the patient can relax muscles. In particular, the emotional instability and pain intolerance described above are usually manifested as pressure value changes, so that a simple determination of the pressure value enables a caregiver to easily and easily cope with stress and pain intolerance when using the automatic infusion device of the present invention. Pressure sample data may be collected by an initialization study, such as a manual infusion by an experienced caregiver manually driving the push rod 28 within the push slot 23 multiple times during the initialization phase, and the collected pressure sample data may be used as an initial pressure sample for the automatic infusion device of the present invention to guide a subsequent automatic infusion task, especially to help a nurse to train a nurse.

The invention provides a using method of a fluid infusion system, the system at least comprises an operation analysis unit, a control component and an infusion component, an injector is locked in a clamping sleeve, during automatic infusion, the control component controls the infusion component to inject according to a preset injection speed based on an injection instruction sent by the operation analysis unit, the automatic infusion is instantly switched into manual infusion, the control component controls a push rod used for pushing a push handle of the injector in the clamping sleeve to be separated from the push handle in a certain distance in response to the switching instruction sent by the operation analysis unit, and therefore a hand manually controls the push handle in instant through a first opening so as to carry out manual infusion.

Preferably, privacy information is input into at least one first information interaction port, inquiry information, injection schemes and/or medical operation information is input into at least one second information interaction port, and the operation analysis unit analyzes the safety risk and/or the operational contradiction of the injection schemes based on the individual privacy information received by the first information interaction port and the injection schemes and/or medical operation information received by the second information interaction port. Confirming the injection protocol if the safety risk is below a risk threshold or if the injection protocol is not inconsistent with the medical procedure information.

Example 2

This embodiment is a further improvement of embodiment 1, and repeated contents are not described again.

Because the high-precision sensor is adopted to determine the propelling pressure, the propelling pressure is always limited by the resolution of the sensor, and the high requirements on the precision and the resolution of the sensor are simultaneously provided due to small pressure change in the subsequent tracking process. Example 2 therefore seeks to provide a practical and less costly solution. The push rod 328 connected to the micro motor 322 is not limited to a mechanical rod, but may be an extension memory assembly 8. For example, as shown in fig. 4 to 6, one end of the extended memory module 8 is connected to a mechanical end of a micro motor capable of transmitting temperature and/or current, and the other end of the extended memory module is provided with a sensing probe 329.

Since the push rod 328 formed by the memory extension element 8 can have a relatively linear elongation characteristic, the sensing probe can determine whether it is pushing only by determining the presence of a pressure exceeding a certain threshold, and since the elongation characteristic of the memory extension element 8 is only related to the input parameter applied, it is not necessary to continuously measure the stroke during pushing, but rather only to determine the end of the stroke. The end-of-travel measurement can be implemented in various forms of particularly compact means for the person skilled in the art, and the input means for applying the input parameters can be external means, such as a PWM unit in the power supply, so that the present solution constitutes a light-weight operating part. For the medical staff, the weight of the hand is obviously reduced, which is helpful for paying attention to the operation related to the patient.

A deformable limiting device, for example, at least one wire, is axially disposed in the memory extension assembly 8. Preferably, the wire can be replaced with other mechanical components having the function of a system. One end of the wire is connected to the mechanical end of the micro-motor and the other end of the wire is connected to the sensing probe 329. The micro-motor regulates and controls the infusion rate of the extended memory assembly by controlling the extension rate of the wire.

The extension memory assembly of the present invention is clearly distinguished from a conventional spring. As shown in FIG. 4, the extended memory component of the present invention is formed of a shape memory alloy. Shape memory alloys, such as copper-nickel-aluminum or nickel-titanium alloys, are metallic materials that change shape upon application of an input parameter (e.g., heat or electrical current). Shape memory alloys are capable of achieving differential shape changes under differential conditions. For example, shape memory alloys have a low temperature shape and a high temperature shape. Application of a hot firing current to the shape memory alloy in the low temperature shape causes the shape memory alloy to assume the high temperature shape. By modifying the different memorized shapes, the shape memory alloy is able to elongate. In the present invention, the memory spring formed of the shape memory alloy can longitudinally extend or retract the extended memory assembly along the advancing slot from the current position by a change in temperature and/or current, thereby achieving the purpose of advancing the advancing syringe.

In the initial state, the extended memory assembly 8 is in a compressed state. The memory-extending component is heated to or above a critical temperature for deformation, and the shape of the memory-extending component is changed to the extended position. The extended memory component in the extended state is rapidly cooled, and the extended memory component is restored to the compressed state. Preferably, the extension memory assembly 8 of the present invention is a shape memory alloy formed according to selected conditions that exerts a substantially constant force on the push handle when extended. This is essentially different from the nature of the spring force associated with the length of the extension and retraction in a conventional spring.

Preferably, in the case that the extension length of the extension memory member 8 exceeds 0.8 to 0.9mm, the force generated by the extension memory member 8 is constant until it is fully extended.

As shown in fig. 6, the memory element 8 is extended in each shape. a1 shows a radial view of the extension memory assembly 8 in a compressed state. a2 shows an axial view of the extension memory assembly 8 in a compressed state. b1 shows a radial view of the extension memory assembly 8 in the extended state. b2 shows an axial view of the extension memory assembly 8 in the extended state. c1 shows a radial view of the extended memory assembly 8 in a cooled compressed state. c2 shows an axial view of the extended memory assembly 8 in a cooled compressed state.

As shown in FIG. 6, the memory extension assembly 8 is provided with a plurality of openings 80 and an extension edge 82. The opening 80 is interconnected with an extended edge 82 that borders the opening. Preferably, the shape of the opening starts in an arcuate manner from a first end 83 at the outer edge of the body of the extension memory member and rotates inwardly along a non-linear path to a second end 84 which approaches the central position of the body. Preferably, a plurality of openings are provided around the center of the body of the extension memory assembly 8. Preferably, the first end 83 of each opening 80 is angularly offset relative to the outer edge of the body of the extension memory assembly. The second end 84 of each opening 80 is oppositely angularly offset relative to the center of the body of the extension memory assembly 8. Preferably, the width of the opening 80 may be constant or may vary along its length. Preferably, the width of the opening 80 gradually narrows as it approaches the first end 83 or the second end 84, and gradually widens in a central region of the opening 80.

In the unactivated state by temperature and/or current, the extended memory component 8 is in a compressed state with a flat surface and a thickness S, as shown in fig. a1 and a 2.

As shown in fig. b1 and b2, when the memory extension assembly 8 is in an extended state after being activated by temperature and/or current, the shape of the extension edge 82 changes to extend the entire memory extension assembly 8.

In the event of rapid cooling, the extended memory assembly 8 returns to the compressed state, as shown in figures c1 and c 2. Preferably, the extension memory component 8 is the most basic body shown in the figure, and the extension length of the body can be longer in practical application. In the example of fig. 6, the extended memory component 8 has a diameter of 9.1 mm and a thickness S in the compressed state of 0.4 mm. The length of the extended memory component 8 after being subjected to temperature and/or electrical activation is 6.8 millimeters. I.e., a compression ratio of 17, which is not achieved by conventional stainless steel springs and coil springs. By providing the memory extension assembly 8, the propulsion duct of the present invention can be significantly shortened without the need for a protruding retraction space.

The present invention provides a more detailed description of the infusion set with the extended memory assembly 8.

As shown in FIG. 4, the infusion assembly step of the present invention includes a micro-motor for adjusting the position of the stop means to limit the rate of extension by means of a coiled wire. The invention is also provided with at least one activation device connected to the control assembly. The activation means may be a heating/cooling means or may be a current application and control means. Preferably, and for safety reasons, the activation device of the present invention is selected to be a temperature control device capable of controlling the temperature and applying heat to the extended memory assembly 8. Preferably, the activation temperature of the memory extension element 8 is close to the temperature of the human body, for example, the temperature range is 30-38 degrees. I.e. the medical staff using the device will not feel the hands overheated after the extended memory assembly 8 has warmed up. The safety problems such as scald and the like can not be caused.

After the extension memory member 8 is activated by temperature, the extension is started. At this time, the micro motor is synchronously started, the wire is released at a preset speed, and one end of the extension memory component 8 advances at a preset injection speed based on the speed limit of a sensing probe connected with the wire. After contacting the push handle, the push handle is continuously pushed at a preset speed so that the medicament is injected into the patient.

After the arithmetic analysis unit determines that the extension memory assembly 8 stops extending based on the signal transmitted by the sensing probe 329, the infusion is completed or manually stopped. At this time, the arithmetic and analysis unit sends an instruction to the control unit to control the temperature control device to apply the extremely low temperature to the extended memory unit 8, so that the extended memory unit 8 starts to return to the compressed state. At the same time, the control assembly controls the micro-motor to assist in compressing the memory extension assembly 8 into the compressed state by way of the contracting wire.

The infusion set of the invention can reduce the space occupied by the propelling groove by arranging the extension memory component 8 which can extend and recover the compression. That is, in the initial state, the arrangement of the memory extension assembly 8 in the propulsion groove requires only a very small space, which is a great advantage over the propulsion rod. When the manual pushing device is pushed manually, the extension memory assembly 8 is compressed rapidly in an auxiliary mode through the limiting device, namely the metal wire, and the obstruction and the influence of a traditional pushing rod on a manual space can be avoided. Meanwhile, the infusion assembly can obviously reduce the weight, so that medical staff can move and use the infusion assembly according to the body posture when changing the infusion assembly into manual infusion, and the infusion assembly does not have the defect that the infusion assembly needs to be arranged on a table for use due to large volume and heavy weight.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A fluid infusion system, characterized in that the system at least comprises an arithmetic and analysis unit, a control component and an infusion component,

the control component controls the infusion component to automatically inject according to the preset injection speed based on the injection instruction sent by the operation analysis unit,

wherein the content of the first and second substances,

the infusion assembly includes a snap-fit sleeve for locking the syringe,

the clamping sleeve is provided with at least one first opening for switching automatic infusion into manual infusion in real time,

under the condition that the control component responds to a switching instruction sent by the operation and analysis unit, the control component controls a pushing rod which is used for pushing a pushing handle of the injector and is arranged in the clamping and fixing sleeve to be separated from the pushing handle in a certain distance, so that the pushing handle is manually controlled by a hand through the first opening in real time for infusion.

2. The fluid infusion system according to claim 1, wherein a micro motor is provided at one end of the clamping sleeve, and a push rod connected to the micro motor moves according to a preset push groove, so that the push rod contacts the push handle and moves according to a preset injection speed.

3. The fluid infusion system of claim 2, wherein an end of the push rod in contact with the push handle is provided with at least one sensing probe,

the sensing probe is in communication connection with the operation analysis unit,

the operation analysis unit determines abnormal conditions in the injection process based on the change of the pressure value between the push rod and the push handle transmitted by the sensing probe.

4. The fluid infusion system of claim 3, wherein the retaining sleeve has at least one retaining portion disposed therein for retaining the syringe barrel in a manner that locks the extended rim of the syringe,

the clamping part is arranged adjacent to the at least one second opening,

in the case that the control assembly responds to a switching instruction sent by the arithmetic and analysis unit, the clamping part can provide a stressed position for at least one finger during manual infusion.

5. The fluid infusion system according to claim 4, wherein the computational analysis unit is connected to at least one first information exchange port and at least one second information exchange port, respectively,

the operation analysis unit analyzes the safety risk and/or the operation contradiction of the injection scheme based on the personal privacy information received by the first information interaction port and the injection scheme and/or the medical operation information received by the second information interaction port.

6. The fluid infusion system of claim 5, wherein the computational analysis unit feeds back at least one injection protocol adjustment recommendation to a connected information interaction port in the event that the injection protocol contradicts patient personal characteristics, interrogation information, and/or medical procedure information.

7. Fluid infusion system according to one of the preceding claims, wherein the arithmetic analysis unit feeds back the injection speed and/or injection duration of at least one injection protocol to a connected information interaction port based on a preset time of the medical operation information.

8. The fluid infusion system according to any of claims 1 to 7, wherein said operational analysis unit is provided with at least one programmable port,

the operation analysis unit analyzes the personal characteristic information, the inquiry information, the medical operation information and/or the injection scheme drawn by the medical staff reasonably based on the operation analysis algorithm/operation analysis scheme input by the programmable port.

9. A method of using a fluid infusion system, the system comprising at least an arithmetic analysis unit, a control unit and an infusion unit,

the syringe is locked in the clamping sleeve,

during automatic infusion, the control component controls the infusion component to inject according to a preset injection speed based on the injection instruction sent by the operation analysis unit,

the automatic infusion is immediately switched into manual infusion, the control component responds to a switching instruction sent by the operation analysis unit to control a pushing rod which is arranged in the clamping and fixing sleeve and used for pushing a pushing handle of the injector to be separated from the pushing handle in a certain distance, and therefore the pushing handle is manually and immediately controlled by a hand through the first opening to carry out manual infusion.

10. The method of using a fluid infusion system of claim 9, wherein entering privacy information into at least one first information exchange port, entering interrogation information, injection protocol and/or medical procedure information into at least one second information exchange port,

the operation analysis unit analyzes the safety risk and/or the operation contradiction of the injection scheme based on the personal privacy information received by the first information interaction port and the injection scheme and/or the medical operation information received by the second information interaction port,

confirming the injection protocol if the safety risk is below a risk threshold or if the injection protocol is not inconsistent with the medical procedure information.

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