Infusion apparatus needle head fixing device and infusion apparatus

Abstract

The invention discloses an infusion apparatus needle fixing device and an infusion apparatus, and relates to the technical field of infusion apparatuses. According to the infusion apparatus needle head fixing device, the limiter fixes the liquid supply pipe connected with the needle head through the first clamping position, the second clamping position and the wrapping part, the bottom plate is fixed to the proper position of the small arm in cooperation with the binding structure, the needle head can be effectively prevented from shaking, it is ensured that the needle head is stable in the infusion process, and the infusion safety is improved; the hinge assembly of the angle follow-up structure enables the silicone tube to shake moderately, when the infusion tube is collided and the like, the influence on the liquid supply tube can be weakened, and meanwhile, the silicone tube is prevented from being folded and blocked due to excessive shaking; according to physiological status data such as average blood pressure, average heart rate, serum creatinine index, age and weight of a patient, the dripping speed and the pressure are set, and the problems that in the existing infusion process, a needle is prone to shaking, the infusion status is difficult to monitor, infusion parameters are not personalized, and the infusion speed is not well controlled are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion sets, and in particular to an infusion set needle fixing device and an infusion set. Background Art

[0002] An infusion set is a common medical device consisting of a needle, an infusion hose, a drip pot, a flow regulator, a medicine filter, an infusion bottle plug or an infusion bag puncture device and other components. It uses the principle of gravity to allow the medicine in the infusion bottle (bag) to flow into the patient's veins, and can control the drip rate through the flow regulator. There are many types, including ordinary, light-proof, and precision-filtered. When using it, you must strictly follow aseptic operations and carefully check its integrity and expiration date to ensure safe and effective infusion.

[0003] However, the needle of the commonly used infusion device is prone to shaking during the infusion process, which may cause the needle to have an undesirable tilt angle in the blood vessel, puncture the blood vessel and cause the drug to penetrate the blood vessel. In addition, it is inconvenient to monitor the infusion status and the infusion speed is poorly controlled. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an infusion set needle fixing device and an infusion set, which solve the problems of easy shaking of the needle during the prior infusion process, difficulty in monitoring the infusion status, lack of personalization of infusion parameters and poor control of the infusion speed.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an infusion needle fixing device and an infusion set, comprising a stopper provided with a vent hole, an angle follower structure and a buffer structure, wherein: the stopper comprises a bottom plate, and a first clamping position and a second clamping position provided on the bottom plate, the first clamping position and the second clamping position are both used to fix a liquid supply tube connected to the needle, a wrapping portion is provided between the first clamping position and the second clamping position, and the wrapping portion is also used to fix the liquid supply tube connected to the needle; a silicone tube is connected between the liquid supply tube connected to the needle and the infusion tube of the infusion set, and the angle follower structure The first abdominal belt is fixedly connected to the surface of the silicone tube, and the buffer structure is also fixedly connected to the surface of the silicone tube; it also includes a restraining structure for fixing the base plate, the restraining structure includes a first abdominal belt and a second abdominal belt fixed on both sides of the base plate, the first abdominal belt is fixedly connected to a positioning rod via a soft cloth, the first abdominal belt is also fixedly connected to a rope ring, the rope ring is used to be sleeved on the surface of the positioning rod; the second abdominal belt is fixedly connected to an arc-shaped positioning plate, the arc-shaped positioning plate is used to be connected to the positioning rod, the surface of the base plate is also fixedly connected to a covering cloth, and the covering cloth can be fixed to the first abdominal belt via Velcro.

[0006] Furthermore, both ends of the silicone tube are respectively connected to the liquid supply tube and the liquid infusion tube through a fixer, and the fixer includes an annular support portion and a plurality of fixing plates arranged in an annular fixed array on the annular support portion. The liquid supply tube and the liquid infusion tube are both fixedly sleeved on the surface of the annular support portion, and the inner side wall of the fixing plate is fixedly connected to the surface of the silicone tube.

[0007] Furthermore, the angle following structure includes a plurality of hinge components in an array rotating along the extension direction of the silicone tube, the hinge components include a first connector and a second connector, the first connector includes a first fixing ring and an annular buckle fixed on the first fixing ring, the second connector includes a second fixing ring and a positioning column fixed on the second fixing ring; the first fixing ring and the second fixing ring are both fixedly sleeved on the surface of the silicone tube, there is a gap between the first fixing ring and the second fixing ring, and the annular buckle is movably sleeved on the surface of the positioning column.

[0008] Furthermore, the buffer structure includes a plurality of elastic fixing rings, the elastic fixing rings are fixedly connected to the surface of the silicone tube, the hardness of the elastic fixing rings is greater than the hardness of the silicone tube, and an elastic sheet is fixedly connected between two adjacent elastic fixing rings.

[0009] An infusion pump comprises the above-mentioned infusion pump needle fixing device, and also comprises a drip bucket, wherein the drip bucket is connected to an infusion tube, an automatic exhaust mechanism is arranged inside the drip bucket, the top of the drip bucket is connected to a piercing head inserted into a drip bottle through a connecting tube, an extension tube is fixedly connected to the surface of the drip bucket, and a filter is fixedly connected to the inside of the extension tube near the end; it also comprises an infusion data monitoring module and two pipeline opening and closing components, wherein the two pipeline opening and closing components are respectively arranged on the infusion tube and the extension tube; the infusion data monitoring module is used to monitor the state of the infusion pump and control the pipeline opening and closing component according to the state of the infusion pump.

[0010] Furthermore, the pipeline opening and closing assembly includes a snap-on shell and a driving motor fixed on the snap-on shell, an extrusion block is fixedly connected to the output shaft of the driving motor, and surfaces of the two extrusion blocks are respectively connected to surfaces of the infusion tube and the extension tube.

[0011] Further, the infusion data monitoring module includes a snap-on alarm and a snap-on drip rate detector, the snap-on alarm is snapped on the connecting tube, and the snap-on drip rate detector is snapped on the upper part of the drip bucket; the infusion data monitoring module also includes a snap-on liquid level detector and a liquid detector, the snap-on liquid level detector is snapped on the lower part of the drip bucket, a pressure sensor is fixedly connected to the interior of the snap-on liquid level detector, the pressure sensor is connected to the drip bucket, a vibrator is also fixedly connected to the bottom of the snap-on liquid level detector, and the surface of the vibrator is connected to the surface of the drip bucket; the liquid detector is mounted on the bottom plate;

[0012] The infusion data monitoring module also includes a signal communication unit and a data processing unit. The signal communication unit is used to communicate with the data processing center. The signal communication unit is also used to send control instructions to the pipeline opening and closing component to control the action of the pipeline opening and closing component. The data processing unit is used to process the monitoring data and determine the status of the infusion device based on the monitoring data.

[0013] Further, a battery slot is provided on the surface of the bottom plate, a battery is installed inside the battery slot, and the battery slot is closed by a battery cover, the surface of the wrapping portion is connected to a clamping member for clamping the liquid supply pipe, the clamping member includes a clamping block and a fixing plate, the clamping block is fixedly connected to the bottom of the fixing plate, and is used to connect to the liquid supply pipe, and the liquid detector is fixedly connected to the surface of the fixing plate;

[0014] A threaded mounting groove is provided on the surface of the bottom plate, a conductive sheet is fixedly connected to the bottom of the threaded mounting groove, the conductive sheet is electrically connected to the battery, a conductive ring is fixedly connected to the surface of the fixed plate, the surface of the conductive ring is fixedly connected to a protective shell, the protective shell is fixedly connected to the fixed plate, the fixed plate is fixed to the bottom plate by metal screws, the metal screws are connected to the conductive ring and the conductive sheet, and the top of the metal screws is insulated.

[0015] Further, the automatic exhaust mechanism includes an umbrella-shaped drainage sheet and an automatic exhaust member, the drainage sheet is fixedly connected to the upper part of the drip bucket, the bottom of the drainage sheet is fixedly connected to a first water-permeable and gas-blocking membrane, and the first water-permeable and gas-blocking membrane is fixedly connected to a first water-permeable and gas-blocking membrane;

[0016] The automatic exhaust component includes a cylindrical pressure relief pipe with a closed top and a hollow interior, the cylindrical pressure relief pipe is fixedly connected to the bottom of the drip bucket, a plurality of vertical holes are arranged on the outer peripheral wall of the cylindrical pressure relief pipe, the vertical holes are connected to the interior of the drip bucket, a liquid inlet hole is also opened on the top of the inner side wall of the cylindrical pressure relief pipe, the liquid inlet hole is connected to the vertical holes and the interior of the cylindrical pressure relief pipe, and a second water-permeable gas-blocking membrane is also fixedly connected to the interior of the cylindrical pressure relief pipe;

[0017] A self-exhaust two-way support frame is also arranged inside the columnar pressure relief pipe.

[0018] Furthermore, the self-exhaust two-way support frame includes a support part, which is fixed inside the columnar pressure relief pipe and is located below the second water-permeable and gas-blocking membrane. A through hole is provided on the top of the support part, a gas-liquid channel is provided on the side wall of the support part, and a liquid outlet hole is provided on the bottom of the support part.

[0019] The present invention has the following beneficial effects:

[0020] (1) The infusion needle fixing device and the infusion set, the limiter fixes the liquid supply tube connected to the needle through the first clamping position, the second clamping position and the wrapping part, and cooperates with the binding structure to fix the bottom plate at a suitable position of the forearm, which can effectively prevent the needle from shaking, ensure the stability of the needle during the infusion process, reduce the risk of needle displacement and dislocation, and improve the safety of infusion.

[0021] (2) The hinged assembly of the angle follower structure of the infusion needle fixing device allows the silicone tube to swing moderately, which can reduce the impact on the liquid supply tube when the infusion tube is hit, and prevent the silicone tube from folding and clogging due to excessive shaking; the elastic fixing ring and elastic sheet of the buffer structure play a buffering role when the silicone tube is stretched, and the elastic fixing ring has a large hardness, which can prevent the silicone tube from bending and clogging, thereby ensuring the smooth flow of the infusion line.

[0022] (3) The various detectors in the infusion device needle fixing device and the infusion device, and the infusion data monitoring module work together to monitor the status of the infusion device in real time. For example, the snap-on alarm detects the liquid in the connecting tube, the snap-on liquid level detector monitors the liquid level and pressure changes in the drip bucket, and the liquid detector detects the liquid in the liquid supply tube. When an abnormality occurs, it can be handled in a timely manner by controlling the action of the pipeline opening and closing components, starting the vibrator, triggering the alarm, etc., to ensure the safety of infusion and reduce the impact of bubbles, blockages and other problems on patients.

[0023] (4) The needle fixing device and the infusion device of the infusion device determine the matching coefficient based on the physiological status data of the patient, such as average blood pressure, average heart rate, blood creatinine index, age and weight, by comparing with the pre-stored parameter data, and then find the corresponding drip drug data set, determine the most similar drug parameter data through similarity calculation, and obtain the set drip rate and set pressure. This method fully considers the individual differences of patients, improves the accuracy and safety of infusion therapy, and helps the drug to better exert its therapeutic effect.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the limiter of the present invention.

[0026] Figure 2 It is a schematic diagram of the bottom structure of the bottom plate of the present invention.

[0027] Figure 3 It is a schematic diagram of the structure of the first clamping position of the present invention.

[0028] Figure 4 It is a structural schematic diagram of the clamping block of the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the conductive ring of the present invention.

[0030] Figure 6 It is a structural schematic diagram of the fixing plate of the present invention.

[0031] Figure 7 It is a structural schematic diagram of the first connector of the present invention.

[0032] Figure 8 It is a structural schematic diagram of the drip bucket of the present invention.

[0033] Fig. 9 It is a structural schematic diagram of the driving motor of the present invention.

[0034] Fig.10 It is a schematic diagram of the internal structure of the snap-fit ​​liquid level detector of the present invention.

[0035] Fig.11 For the present invention Fig.10 A magnified view of the structure in the middle.

[0036] Fig.12 It is a structural schematic diagram of the extrusion block of the present invention.

[0037] Fig.13 It is a schematic diagram of the internal structure of the drip bucket of the present invention.

[0038] Fig.14 It is a structural schematic diagram of the extrusion block of the present invention.

[0039] In the figure, 1, vent; 2, stopper; 201, bottom plate; 202, first clamping position; 203, second clamping position; 204, winding part; 3, silicone tube; 4, first abdominal belt; 5, second abdominal belt; 6, positioning rod; 7, rope ring; 8, arc positioning plate; 9, covering cloth; 10, annular support part; 11, fixing plate; 12, first clamp; 1201, first fixing ring; 1202, ring buckle; 13, second clamp; 1301, second fixing ring; 1302, positioning column; 14, elastic fixing ring; 15, elastic sheet; 16, drip bucket; 17, extension tube; 18, clamping shell; 19, driving motor; 20, extrusion block; 21, Snap-on alarm; 22. Snap-on drip rate detector; 23. Snap-on liquid level detector; 24. Liquid detector; 25. Pressure sensor; 26. Vibrator; 27. Battery slot; 28. Snap-on fitting; 2801. Snap-on block; 2802. Fixing plate; 29. ​​Threaded mounting groove; 30. Conductive sheet; 31. Conductive ring; 32. Protective shell; 33. Metal screw; 34. Drainage sheet; 35. Second water-permeable and gas-blocking membrane; 36. First water-permeable and gas-blocking membrane; 37. Columnar pressure relief pipe; 38. Vertical hole; 39. Liquid inlet hole; 40. Self-exhaust two-way support frame; 4001. Support part; 4002. Through hole; 4003. Gas-liquid channel; 4004. Liquid outlet hole. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] See also Figure 1-Figure 7 The embodiment of the present invention provides a technical solution: an infusion needle fixing device, comprising a stopper 2 provided with a vent hole 1, an angle follower structure and a buffer structure, wherein: the stopper 2 comprises a bottom plate 201, and a first clamping position 202 and a second clamping position 203 provided on the bottom plate 201, the first clamping position 202 and the second clamping position 203 are both used to fix a liquid supply tube connected to the needle, a wrapping portion 204 is provided between the first clamping position 202 and the second clamping position 203, and the wrapping portion 204 is also used to fix the liquid supply tube connected to the needle; a silicone tube 3 is connected between the liquid supply tube connected to the needle and the infusion tube of the infusion device, and the angle follower structure fixes It is sleeved on the surface of the silicone tube 3, and the buffer structure is also fixedly sleeved on the surface of the silicone tube 3; it also includes a restraining structure for fixing the base plate 201, and the restraining structure includes a first abdominal belt 4 and a second abdominal belt 5 fixed on both sides of the base plate 201, the first abdominal belt 4 is fixedly connected to a positioning rod 6 through a soft cloth, the first abdominal belt 4 is also fixedly connected to a rope ring 7, and the rope ring 7 is used to be sleeved on the surface of the positioning rod 6; the second abdominal belt 5 is fixedly connected to an arc-shaped positioning plate 8, and the arc-shaped positioning plate 8 is used to be connected to the positioning rod 6, the surface of the base plate 201 is also fixedly connected to a covering cloth 9, and the covering cloth 9 can be fixed to the first abdominal belt 4 by Velcro.

[0043] Specifically, both ends of the silicone tube 3 are respectively connected to the liquid supply tube and the liquid infusion tube through a fixer, and the fixer includes an annular support portion 10 and a plurality of fixing plates 11 fixed in an annular array on the annular support portion 10. The liquid supply tube and the liquid infusion tube are both fixedly sleeved on the surface of the annular support portion 10, and the inner side wall of the fixing plate 11 is fixedly connected to the surface of the silicone tube 3.

[0044] During use, the nurse can connect the liquid supply tube connected to the needle to the first clamping position 202, then bypass the winding part 204, and finally connect it to the second clamping position 203. After the needle pierces the patient's blood vessel, the needle is first fixed, and then the bottom plate 201 is placed at a suitable position on the forearm, and the bottom plate 201 is fixed by the binding structure. Specifically, the arc-shaped positioning plate 8 is buckled on the positioning rod 6, and then the rope ring 7 is put on the positioning rod 6 to achieve fixation, and finally covered with a covering cloth 9 to prevent the rope ring 7 from being touched.

[0045] The stopper 2 can be used to fix the needle after it penetrates the blood vessel, thereby preventing the needle from shaking.

[0046] Specifically, the angle following structure includes a plurality of hinged components arranged in a rotation array along the extension direction of the silicone tube 3, the hinged components include a first connector 12 and a second connector 13, the first connector 12 includes a first fixing ring 1201 and an annular buckle 1202 fixed on the first fixing ring 1201, the second connector 13 includes a second fixing ring 1301 and a positioning column 1302 fixed on the second fixing ring 1301; the first fixing ring 1201 and the second fixing ring 1301 are both fixedly sleeved on the surface of the silicone tube 3, there is a gap between the first fixing ring 1201 and the second fixing ring 1301, and the annular buckle 1202 is movably sleeved on the surface of the positioning column 1302.

[0047] In this embodiment, the first connector 12 and the second connector 13 are movably connected, that is, the positioning column 1302 can rotate around the annular buckle 1202, and the gap between the first fixing ring 1201 and the second fixing ring 1301 is small, so the range of movement is limited. In addition, the gap between two adjacent hinged components is also small, so the range of movement is also limited. Since the silicone material is relatively soft, when the range of movement is too large, the silicone tube 3 may be folded and blocked, and the infusion cannot be performed normally. Since the supply tube is fixed to the limiter 2, when the infusion tube is shaken by an accidental collision or other circumstances, the silicone tube 3 with a softer material can shake more easily, thereby reducing the impact of the shaking of the infusion tube on the supply tube. At the same time, the interaction of multiple hinged components can also prevent the silicone tube 3 from shaking too much.

[0048] Specifically, the buffer structure includes a plurality of elastic fixing rings 14 , which are fixedly connected to the surface of the silicone tube 3 , the hardness of the elastic fixing rings 14 is greater than the hardness of the silicone tube 3 , and an elastic sheet 15 is fixedly connected between two adjacent elastic fixing rings 14 .

[0049] The buffer structure can play a buffering role when the silicone tube 3 is stretched by force, and the hardness of the elastic fixing ring 14 is greater than the hardness of the silicone, which can prevent the silicone tube 3 from bending and clogging.

[0050] See also Figure 8-Figure 14 An infusion set comprises the above-mentioned infusion set needle fixing device, and also comprises a drip bucket 16, wherein the interior of the drip bucket 16 is provided with an automatic exhaust mechanism, the drip bucket 16 is connected to an infusion tube, the top of the drip bucket 16 is connected to a piercing head inserted into the interior of a drip bottle through a connecting tube, the surface of the drip bucket 16 is fixedly connected to an extension tube 17, and the interior of the extension tube 17 near the end is fixedly connected to a filter screen; it also comprises an infusion data monitoring module and two pipeline opening and closing components, the two pipeline opening and closing components are respectively arranged on the infusion tube and the extension tube 17; the infusion data monitoring module is used to monitor the state of the infusion set, and control the pipeline opening and closing component according to the state of the infusion set.

[0051] The automatic exhaust mechanism includes an umbrella-shaped drainage sheet 34 and an automatic exhaust member. The drainage sheet 34 is fixedly connected to the upper part of the drip bucket 16. The bottom of the drainage sheet 34 is fixedly connected to a first water-permeable and gas-blocking membrane 36. The first water-permeable and gas-blocking membrane 36 is fixedly connected to the first water-permeable and gas-blocking membrane 36.

[0052] The automatic exhaust member includes a columnar pressure relief pipe 37 with a closed top and a hollow interior, the columnar pressure relief pipe 37 is fixedly connected to the bottom of the drip bucket 16, a plurality of vertical holes 38 are provided on the outer peripheral wall of the columnar pressure relief pipe 37, the vertical holes 38 are communicated with the interior of the drip bucket 16, a liquid inlet hole 39 is also provided on the top of the inner side wall of the columnar pressure relief pipe 37, the liquid inlet hole 39 is communicated with the vertical holes 38 and the interior of the columnar pressure relief pipe 37, and a second water-permeable gas-blocking membrane 35 is also fixedly connected to the interior of the columnar pressure relief pipe 37;

[0053] A self-exhaust two-way support frame 40 is also provided inside the columnar pressure relief pipe 37 .

[0054] The self-exhaust two-way support frame 40 includes a support portion 4001, which is fixed inside the columnar pressure relief pipe 37 and is located below the second water-permeable and gas-blocking membrane 35. A through hole 4002 is provided on the top of the support portion 4001, a gas-liquid channel 4003 is provided on the side wall of the support portion 4001, and a liquid outlet hole 4004 is provided at the bottom of the support portion 4001.

[0055] After the liquid medicine enters the drip bucket 16, it is diverted to both sides through the drainage sheet 34. The first water-permeable gas-blocking membrane 36 isolates the air and performs the first air filtration. In addition, the first water-permeable gas-blocking membrane 36 and the second water-permeable gas-blocking membrane 35 allow gas to pass through when they are not in contact with the liquid, and the gas will be discharged through the extension tube 17. After the liquid medicine passes through, it enters the space between the drip bucket 16 and the columnar pressure relief pipe 37. The liquid medicine enters the columnar pressure relief pipe 37 through the vertical hole 38, and finally enters the columnar pressure relief pipe 37 through the liquid inlet hole 39. After the second water-permeable gas-blocking membrane 35 contacts the liquid medicine, it does not allow gas to pass through, and performs the second automatic exhaust.

[0056] Afterwards, the medicine liquid enters the interior of the support part 4001, and the gas-liquid channel 4003 on the side wall of the support part 4001 allows gas to pass through. Under the action of the surface tension of the medicine liquid, the medicine liquid cannot pass through the gas-liquid channel 4003 temporarily. When the gravity of the medicine liquid increases and breaks through the surface tension, it passes through the gas-liquid channel 4003 and is finally discharged through the liquid outlet 4004.

[0057] The first water-permeable gas-blocking membrane 36 and the second water-permeable gas-blocking membrane 35 can be selected according to the properties of the liquid medicine to facilitate the passage of the liquid medicine. Specifically, the pipeline opening and closing assembly includes a snap-on shell 18 and a drive motor 19 fixed to the snap-on shell 18, and an extrusion block 20 is fixedly connected to the output shaft of the drive motor 19. The surfaces of the two extrusion blocks 20 are respectively connected to the surfaces of the infusion tube and the extension tube 17. A button battery and a communication module can be installed inside the snap-on shell 18 for power supply and communication.

[0058] In this embodiment, the driving motor 19 drives the squeezing block 20 to rotate, so as to squeeze the infusion tube, thereby adjusting the infusion speed. The squeezing of the extension tube 17 can prevent the entry of external gas, and when the squeezing block 20 does not squeeze the extension tube 17, the gas in the drip bucket 16 can be discharged to the outside.

[0059] Specifically, the infusion data monitoring module includes a snap-on alarm 21 and a snap-on drip rate detector 22, wherein the snap-on alarm 21 is snapped on the connecting tube, and the snap-on drip rate detector 22 is snapped on the upper part of the drip bucket 16; the infusion data monitoring module also includes a snap-on liquid level detector 23 and a liquid detector 24, wherein the snap-on liquid level detector 23 is snapped on the lower part of the drip bucket 16, and a pressure sensor 25 is fixedly connected to the interior of the snap-on liquid level detector 23, and the pressure sensor 25 is connected to the drip bucket 16, and a vibrator 26 is also fixedly connected to the bottom of the snap-on liquid level detector 23, and the surface of the vibrator 26 is connected to the surface of the drip bucket 16;

[0060] The snap-on alarm 21, the snap-on dripping rate detector 22, the snap-on liquid level detector 23 and the liquid detector 24 can all adopt the infrared photoelectric principle to perform corresponding monitoring, and can all be equipped with button batteries and communication units.

[0061] The liquid detector 24 is installed on the bottom plate 201. The surface of the bottom plate 201 is provided with a battery slot 27. A battery is installed inside the battery slot 27, and the battery slot 27 is closed by a battery cover. The surface of the wrapping portion 204 is connected to a clamping member 28 for clamping the liquid supply pipe. The clamping member 28 includes a clamping block 2801 and a fixing plate 2802. The clamping block 2801 is fixedly connected to the bottom of the fixing plate 2802 for connecting with the liquid supply pipe. The liquid detector 24 is fixedly connected to the surface of the fixing plate 2802. A threaded mounting groove 29 is provided on the surface, a conductive sheet 30 is fixedly connected to the bottom of the threaded mounting groove 29, and the conductive sheet 30 is electrically connected to the battery. A conductive ring 31 electrically connected to the liquid detector 24 is fixedly connected to the surface of the fixing plate 2802, and a protective shell 32 is fixedly connected to the surface of the conductive ring 31, and the protective shell 32 is fixedly connected to the fixing plate 2802. The fixing plate 2802 is fixed to the bottom plate 201 by metal screws 33, and the metal screws 33 are connected to the conductive ring 31 and the conductive sheet 30, and the top of the metal screws 33 is insulated;

[0062] The infusion data monitoring module also includes a signal communication unit and a data processing unit. The signal communication unit is used to communicate with the data processing center. The signal communication unit is also used to send control instructions to the pipeline opening and closing component to control the action of the pipeline opening and closing component. The data processing unit is used to process the monitoring data and determine the status of the infusion device based on the monitoring data.

[0063] Specifically, when the snap-on alarm 21 detects that there is liquid inside the connecting tube, it sends a connecting tube liquid signal to the signal communication unit. After receiving the connecting tube liquid signal, the signal communication unit sends an action signal to the pipeline opening and closing component connected to the infusion tube, and the driving motor 19 of the pipeline opening and closing component connected to the infusion tube is started, so that the squeezing block 20 squeezes the infusion tube; the snap-on liquid level detector 23 obtains the liquid level height in the drip bucket 16, and the data processing center calculates the theoretical pressure through the liquid level height, and compares the theoretical pressure with the actual pressure measured by the pressure sensor 25. If the difference between the theoretical pressure and the actual pressure is greater than the pressure threshold, the vibrator 26 is started;

[0064] When bubbles exist in the liquid part of the drip bucket 16, under the same liquid level condition, the presence of bubbles indicates that the pressure of the liquid on the pressure sensor 25 will become smaller. At this time, starting the vibrator 26 can realize the upward vibration movement of the bubbles, thereby discharging the gas.

[0065] If the difference between the theoretical pressure and the actual pressure is greater than the pressure threshold, the signal communication unit sends an action signal to the pipeline opening and closing component connected to the extension tube 17, squeezes the extension tube 17, and resets the pipeline opening and closing component connected to the infusion tube; the time when the pipeline opening and closing component connected to the infusion tube is reset and the time when the liquid detector 24 detects the liquid are recorded to obtain the time difference. The data processing center obtains the theoretical time for the liquid to flow from the drip bucket 16 to the winding part 204 based on the drip rate measured by the snap-on drip rate detector 22. If the difference between the time difference and the theoretical time is greater than the time threshold, the snap-on alarm 21 alarms; if there are a large number of bubbles in the infusion tube, the flow speed of the medicine will slow down, and the time difference will become larger, and the difference between the time difference and the theoretical time will become larger. At this time, the snap-on alarm 21 alarms to prompt.

[0066] During the infusion process, the data processing center compares the drip rate and actual pressure with the set drip rate and set pressure to obtain the infusion device state coefficient. If the infusion device state coefficient is greater than the state threshold, the snap-on alarm will sound. The method for obtaining the infusion device state coefficient is as follows:

[0067] Where Zx is the infusion device state coefficient, sv d is the drip rate, cv d To set the drip rate, sp y is the actual pressure, cp y To set the pressure.

[0068] In the present embodiment, during the infusion process, the data processing center collects the two key parameters of dripping speed and actual pressure in real time, and then compares them with the pre-set dripping speed and set pressure respectively. The dripping speed reflects the speed at which the liquid medicine is input into the patient's body, and the pressure is related to the degree of patency of the infusion system. The actual dripping speed and pressure deviate from the set value, which may mean that the infusion process is abnormal. The calculated infusion device state coefficient is compared with the set state threshold. If it is greater than the state threshold, it means that the actual infusion state deviates greatly from the set state, and there may be problems such as blockage of the infusion tube and abnormal infusion speed. At this time, the snap-on alarm alarms to remind medical staff to handle in time.

[0069] Specifically, the method for obtaining the set drip rate and the set pressure is as follows: obtaining the patient's physiological state data before infusion, the physiological state data including average blood pressure, average heart rate, blood creatinine index, age and weight; the data processing center compares the patient's physiological state data with each pre-stored physiological state parameter data one by one to obtain a matching coefficient, the physiological state parameter data including a parameterized average blood pressure, a parameterized average heart rate, a parameterized blood creatinine index, a parameterized age and a parameterized weight; determining the minimum matching coefficient, and based on the minimum matching coefficient, determining to obtain a pre-corresponding stored drip drug data set, the drip drug data set including a number of drip drug parameter data, the drip drug parameter data including the type of drip drug and the content of each drip drug type; performing a similarity function calculation on the actual type of drip drug and the actual content of each drip drug type and the drip drug parameter data, determining the most similar drip drug parameter data, and obtaining the set drip rate and set pressure pre-corresponding to the most similar drip drug parameter data.

[0070] Specifically, the method for obtaining the matching coefficient is as follows:

[0071]

[0072] Among them, Sp is the matching coefficient, Py is the average blood pressure, Px is the average heart rate, Pg is the blood creatinine index, Pn is the age, Pt is the weight, cPy is the reference average blood pressure, cPx is the reference average heart rate, cPg is the reference blood creatinine index, cPn is the reference age, and cPt is the reference weight.

[0073] In this embodiment, the drip rate and pressure are set according to the patient's specific physiological status data, which fully considers the individual differences of patients and can formulate an infusion plan that is more suitable for the patient's own condition, thereby improving the accuracy and safety of treatment. For example, patients of different ages and weights have different tolerances for drug infusion speed and pressure. According to this method, more reasonable infusion parameters can be obtained. By matching drug parameter data to determine infusion parameters, drugs can be infused into the patient's body at a more appropriate speed and pressure, which helps the drugs to better exert their therapeutic effects and reduce the problem of poor treatment effects caused by factors such as improper infusion speed.

[0074] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0075] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An infusion needle fixing device, characterized in that: It comprises a stopper (2) provided with a vent hole (1), an angle follower structure and a buffer structure, wherein: The stopper (2) comprises a base plate (201), and a first clamping position (202) and a second clamping position (203) arranged on the base plate (201), the first clamping position (202) and the second clamping position (203) both being used to fix a liquid supply tube connected to the needle, a wrapping portion (204) being arranged between the first clamping position (202) and the second clamping position (203), the wrapping portion (204) also being used to fix the liquid supply tube connected to the needle; A silicone tube (3) is connected between the liquid supply tube connected to the needle and the liquid infusion tube of the infusion device, the angle follower structure is fixedly sleeved on the surface of the silicone tube (3), and the buffer structure is also fixedly sleeved on the surface of the silicone tube (3); It also includes a restraining structure for fixing the bottom plate (201), the restraining structure including a first abdominal belt (4) and a second abdominal belt (5) fixed on both sides of the bottom plate (201), the first abdominal belt (4) being fixedly connected to a positioning rod (6) via a soft cloth, the first abdominal belt (4) also being fixedly connected to a rope ring (7), the rope ring (7) being used to be sleeved on the surface of the positioning rod (6); The second abdominal belt (5) is fixedly connected with an arc-shaped positioning plate (8), and the arc-shaped positioning plate (8) is used to be connected with the positioning rod (6). The surface of the bottom plate (201) is also fixedly connected with a covering cloth (9), and the covering cloth (9) can be fixed to the first abdominal belt (4) by Velcro.

2. The infusion set needle fixing device according to claim 1, characterized in that: Both ends of the silicone tube (3) are connected to the liquid supply tube and the liquid infusion tube respectively through a fixer, the fixer comprising an annular support portion (10) and a plurality of fixing plates (11) fixed in an annular array on the annular support portion (10), the liquid supply tube and the liquid infusion tube are both fixedly sleeved on the surface of the annular support portion (10), and the inner side wall of the fixing plate (11) is fixedly connected to the surface of the silicone tube (3).

3. The infusion set needle fixing device according to claim 1, characterized in that: The angle follower structure comprises a plurality of hinge components which are arranged in a rotational array along the extension direction of the silicone tube (3), the hinge components comprising a first connector (12) and a second connector (13), the first connector (12) comprising a first fixing ring (1201) and a ring buckle (1202) fixed on the first fixing ring (1201), the second connector (13) comprising a second fixing ring (1301) and a positioning column (1302) fixed on the second fixing ring (1301); The first fixing ring (1201) and the second fixing ring (1301) are both fixedly sleeved on the surface of the silicone tube (3), a gap is provided between the first fixing ring (1201) and the second fixing ring (1301), and the annular buckle (1202) is movably sleeved on the surface of the positioning column (1302).

4. The infusion needle fixing device according to claim 3, characterized in that: The buffer structure comprises a plurality of elastic fixing rings (14), wherein the elastic fixing rings (14) are fixedly connected to the surface of the silicone tube (3), the hardness of the elastic fixing rings (14) is greater than the hardness of the silicone tube (3), and an elastic sheet (15) is fixedly connected between two adjacent elastic fixing rings (14).

5. An infusion set, comprising an infusion set needle fixing device according to any one of claims 1 to 4, comprising a dripping bucket (16), wherein an automatic exhaust mechanism is arranged inside the dripping bucket (16), the dripping bucket (16) is connected to an infusion tube, and the top of the dripping bucket (16) is connected to a piercing head inserted into a dripping bottle through a connecting tube, characterized in that: An extension tube (17) is fixedly connected to the surface of the drip bucket (16), and a filter screen is fixedly connected to the interior of the extension tube (17) near the end; It also includes an infusion data monitoring module and two pipeline opening and closing components, wherein the two pipeline opening and closing components are respectively arranged on the infusion tube and the extension tube (17); The infusion data monitoring module is used to monitor the state of the infusion device and control the pipeline opening and closing component according to the state of the infusion device.

6. An infusion set according to claim 5, characterized in that: The pipeline opening and closing assembly comprises a snap-on shell (18) and a driving motor (19) fixed on the snap-on shell (18); an extrusion block (20) is fixedly connected to the output shaft of the driving motor (19); surfaces of the two extrusion blocks (20) are respectively connected to the surfaces of the infusion tube and the extension tube (17).

7. An infusion set according to claim 6, characterized in that: The infusion data monitoring module comprises a snap-on alarm (21) and a snap-on drip rate detector (22), wherein the snap-on alarm (21) is snap-on on the connecting tube, and the snap-on drip rate detector (22) is snap-on on the upper part of the drip bucket (16); The infusion data monitoring module further comprises a snap-fit ​​liquid level detector (23) and a liquid detector (24), wherein the snap-fit ​​liquid level detector (23) is snap-fitted to the lower part of the drip bucket (16), a pressure sensor (25) is fixedly connected to the interior of the snap-fit ​​liquid level detector (23), and the pressure sensor (25) is connected to the drip bucket (16), and a vibrator (26) is also fixedly connected to the bottom of the snap-fit ​​liquid level detector (23), and the surface of the vibrator (26) is connected to the surface of the drip bucket (16); The liquid detector (24) is mounted on the bottom plate (201); The infusion data monitoring module also includes a signal communication unit and a data processing unit. The signal communication unit is used to communicate with the data processing center. The signal communication unit is also used to send control instructions to the pipeline opening and closing component to control the action of the pipeline opening and closing component. The data processing unit is used to process the monitoring data and determine the status of the infusion device based on the monitoring data.

8. An infusion set according to claim 7, characterized in that: A battery slot (27) is provided on the surface of the bottom plate (201), a battery is installed inside the battery slot (27), and the battery slot (27) is closed by a battery cover; a clamping member (28) for clamping the liquid supply pipe is connected to the surface of the wrapping portion (204); the clamping member (28) comprises a clamping block (2801) and a fixing plate (2802); the clamping block (2801) is fixedly connected to the bottom of the fixing plate (2802) and is used to be connected to the liquid supply pipe; and the liquid detector (24) is fixedly connected to the surface of the fixing plate (2802); The surface of the bottom plate (201) is provided with a threaded mounting groove (29), the bottom of the threaded mounting groove (29) is fixedly connected with a conductive sheet (30), the conductive sheet (30) is electrically connected to a battery, the surface of the fixed plate (2802) is fixedly connected with a conductive ring (31) electrically connected to a liquid detector (24), the surface of the conductive ring (31) is fixedly connected with a protective shell (32), the protective shell (32) is fixedly connected to the fixed plate (2802), the fixed plate (2802) is fixed to the bottom plate (201) by a metal screw (33), the metal screw (33) is connected to the conductive ring (31) and the conductive sheet (30), and the top of the metal screw (33) is insulated.

9. An infusion set according to claim 8, characterized in that: The automatic exhaust mechanism comprises an umbrella-shaped drainage sheet (34) and an automatic exhaust member, wherein the drainage sheet (34) is fixedly connected to the upper part of the drip bucket (16), the bottom of the drainage sheet (34) is fixedly connected to a first water-permeable and gas-blocking membrane (36), and the first water-permeable and gas-blocking membrane (36) is fixedly connected to the first water-permeable and gas-blocking membrane (36); The automatic exhaust component comprises a columnar pressure relief pipe (37) with a closed top and a hollow interior, the columnar pressure relief pipe (37) being fixedly connected to the bottom of the drip bucket (16), a plurality of vertical holes (38) being arranged on the outer peripheral wall of the columnar pressure relief pipe (37), the vertical holes (38) being communicated with the interior of the drip bucket (16), a liquid inlet hole (39) being arranged on the top of the inner side wall of the columnar pressure relief pipe (37), the liquid inlet hole (39) being communicated with the vertical holes (38) and the interior of the columnar pressure relief pipe (37), and a second water-permeable gas-blocking membrane (35) being fixedly connected to the interior of the columnar pressure relief pipe (37); A self-exhaust two-way support frame (40) is also provided inside the columnar pressure relief pipe (37).

10. An infusion set according to claim 9, characterized in that: The self-exhaust two-way support frame (40) comprises a support portion (4001), the support portion (4001) is fixed inside the columnar pressure relief pipe (37) and is located below the second water-permeable gas-blocking membrane (35), a through hole (4002) is provided on the top of the support portion (4001), a gas-liquid channel (4003) is provided on the side wall of the support portion (4001), and a liquid outlet hole (4004) is provided at the bottom of the support portion (4001).

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