CN108261584A - A kind of slidingtype regulation and control dropper of multifunctional adaptive continuous transfusion system - Google Patents

Abstract

The invention discloses a sliding control dropper of a multifunctional self-adaptive continuous infusion device, which includes an infusion controller (4) and a dropper (5), and is characterized in that the infusion controller (4) includes a transmission shaft (41) , motor (42), central controller (43), infusion control mechanism manual switch (46), sliding spool (47), vertical infusion channel of sliding spool (471), horizontal infusion channel of sliding spool (472), Hydraulic cylinder (48), hydraulic cylinder support (481); transmission shaft (41) one end links to each other with motor (42), and the other end links to each other with sliding spool (47), thereby drives sliding spool (47) to rotate. The multi-sliding control dropper of the present invention can set and automatically adjust the infusion speed according to the actual situation of the patient. During the infusion process, the infusion speed is automatically adjusted and always in the optimal flow rate state, avoiding the problem of inaccurate flow rate in manual adjustment. Thereby, the possible serious consequences caused by improper infusion speed are reliably avoided.

Description

A sliding control dropper of a multifunctional self-adaptive continuous infusion device

technical field

The invention relates to the field of medical devices, in particular to a sliding control dropper of a multifunctional adaptive continuous infusion set.

technical background

The infusion set is a commonly used medical device for intravenous injection. As shown in Figure 1, the infusion set is generally composed of a bottle stopper piercer protective cover, a bottle stopper piercer, an air filter, a water stop clip, a Muphi dropper, an infusion length Consists of conduit, flow regulating device, liquid medicine filter and conical joint. The infusion set usually has only one infusion channel, the upper end is connected with the infusion bottle, and the lower end is used in conjunction with the intravenous infusion needle, and is mainly used for clinical gravity infusion. In the process of actual clinical intravenous infusion, due to the needs of treating the state of an illness, it is often necessary to carry out continuous infusion of multiple bottles of infusion bottles to the patient. At present, the continuous infusion of multiple bottles of infusion bottles in clinical practice is inseparable from the real-time monitoring of medical staff, and medical staff often need to take care of infusion patients in multiple wards. It takes a lot of time and energy for medical staff to repeatedly replace infusion bottles. In addition, the traditional infusion method also has obvious shortcomings in the following aspects:

1. The current clinical intravenous infusion cannot automatically adjust the infusion speed according to the actual situation of the patient. A reasonable infusion rate should be determined by factors such as the patient's age, condition, and the nature of the drug. Improper setting of the infusion rate may cause heart failure or other serious consequences in the patient. The current infusion speed can only be accomplished by manually observing the flow rate of the medicinal solution in the Murphy dropper and manually adjusting the flow regulating device. On the one hand, the flow rate set by observing the Murphy dropper is limited by objective conditions such as the personal ability of the medical staff, so it cannot be guaranteed to be completely accurate; Personnel can also make adjustments, and such unprofessional adjustments risk disrupting the normal infusion process.

2. Traditional multi-bottle infusion bottle continuous infusion requires manual replacement of infusion bottles, and this process is not only time-consuming and labor-intensive, but also damages the reliability of the entire infusion process and affects the quality of infusion therapy. First of all, the process of manually changing the infusion bottle is very troublesome. When changing the infusion bottle, if the infusion liquid level is lower than the lower part of the Murphy's dropper, you need to re-air or re-inject the IV: if the liquid level is only a short distance below the dropper, usually wrap the infusion tube from the bottom up Squeeze out the air gradually; if the liquid level is much lower than the dropper, you need to open the conical joint to discharge the air from the lower end. Secondly, the method of expelling air from the outside of the infusion set by squeezing the infusion tube wall will also cause damage to the infusion tube. The damaged infusion tube will affect the infusion performance of the infusion set, thereby reducing the reliability of the infusion set, and in severe cases, cause infusion accidents. Furthermore, manual replacement of the infusion bottle interrupts the continuity of the infusion, which not only requires additional time costs, but also affects the quality of the entire infusion treatment.

3. The infusion of traditional infusion sets requires manual confirmation before infusion and cleaning after infusion. In particular, before transfusion of blood or precious medicinal liquid, it must be tested with normal saline to confirm that the intravenous delivery is correct before the formal delivery can be carried out; at the same time, at the end of the infusion, in order to avoid retention of the medicinal liquid in the infusion tube, it is necessary to perform saline flushing To avoid wastage of liquid medicine. At present, pre-infusion confirmation and post-infusion cleaning must be done manually by medical staff, which increases the workload of clinical infusion and is very inconvenient.

4. When there is a small amount of liquid medicine remaining in the Mufei’s dropper, due to the low pressure, there will always be a part of the liquid medicine remaining in the pipeline, resulting in a waste of liquid medicine and affecting the therapeutic effect, and it will be automatically reserved after the needle is pulled out Cause unnecessary liquid pollution.

Aiming at the continuous infusion of multiple bottles, the patent titled "Pressure Differential Nursing-free Automatic Bottle-changing Infusion Set and Monitoring System" (application number: CN103705998A) was announced, and its main defects are: 1. It can only realize continuous infusion of multiple bottles The continuous infusion in the case of the infusion reduces the workload of the medical staff to replace the infusion bottle, and does not involve the problems of automatic exhaust, automatic stop of the infusion and prevention of residual liquid in the tube; On the one hand, it will put forward great requirements on the infusion space, on the other hand, when multiple bottles are continuously infused, due to the limited height from the patient to the medical staff, it will be difficult for the nurses to hang the infusion bottles; 3. Adopt buoyancy valve Different suspension heights cause multiple buoyancy valves to generate pressure differences, which also makes it difficult for infusion space and nurses to hang infusion bottles; The structure is complex, affected by the layout of the infusion set and the arrangement of the infusion bottle, there is a problem of reliability. Reliability is very important for the infusion set. If the continuous infusion of the infusion bottle does not enter the infusion set in time, there will be a section of air in the middle, which will cause larger accident.

Contents of the invention

Aiming at the many shortcomings and deficiencies of traditional infusion sets, the present invention aims to solve the following problems: 1. Automatic multi-bottle continuous infusion without manual intervention; 2. Automatically complete pre-infusion confirmation and post-infusion cleaning; 3. According to the actual situation of patients Setting and automatically adjusting the infusion flow rate provides a multifunctional self-adaptive continuous infusion device; 4. Input the medicinal liquid at the end of the infusion as much as possible to reduce the waste of medicinal liquid and unnecessary pollution.

The specific technical solution of the present invention is to provide a sliding control dropper for a multifunctional self-adaptive continuous infusion device, which includes an infusion controller and a dropper, wherein:

Infusion controller includes transmission shaft, motor, central controller, manual switch of infusion control mechanism, sliding spool, vertical infusion channel of sliding spool, horizontal infusion channel of sliding spool, hydraulic cylinder, hydraulic cylinder support;

One end of the transmission shaft is connected to the motor, and the other end is connected to the sliding valve core, so as to drive the sliding valve core to rotate;

The tail of the motor is connected to the hydraulic cylinder, and the extension and shortening of the hydraulic cylinder drives the motor and the sliding valve core to slide up and down, and the hydraulic cylinder is fixed to the fixed support block through the hydraulic cylinder support;

The central controller is integrated with the motor, and controls the positive and negative rotation of the motor, and at the same time controls the sliding spool to slide up and down; the vertical infusion channel of the sliding spool and the horizontal infusion channel of the sliding spool are set inside the sliding spool, and the The straight infusion channel is located at the axis of the sliding spool, and the eight horizontal infusion channels of the sliding spool are evenly distributed along the circumference at the same height as the sliding spool, and are all connected to the vertical infusion channel; the dropper is set on the vertical infusion channel directly below the .

Beneficial effects of the present invention:

1. The multifunctional continuous infusion device provided by the present invention can realize the function of automatic multi-bottle continuous infusion without manual intervention. On the one hand, it solves the problem that the traditional multi-bottle continuous infusion requires manual frequent replacement of infusion bottles, saving a lot of time and energy for medical staff; on the other hand, it effectively guarantees the reliability and quality of the entire infusion process. Through the sliding control dropper, the volume of the device is greatly reduced, and the hydraulic control method reduces the difficulty of control, and at the same time achieves the effect of fast response and low cost.

2. The multifunctional continuous infusion device provided by the present invention can automatically complete the pre-infusion confirmation and post-infusion cleaning of the continuous infusion of multiple bottles of precious medicinal liquid. On the one hand, it can ensure the correct and safe venous delivery. On the other hand, while avoiding the waste of precious medicinal liquid, it overcomes the shortage of manual cleaning after the traditional infusion, which greatly reduces the workload of clinical infusion, which is very convenient.

3. The multifunctional continuous infusion device provided by the present invention can set and automatically adjust the infusion speed according to the actual situation of the patient, and automatically adjust the infusion speed during the infusion process and always be in the optimal flow rate state, avoiding the inaccurate flow rate caused by manual adjustment The problem, thus reliably avoiding the serious consequences that may be caused by improper infusion speed.

4. At the end of the infusion, a small amount of medicinal liquid remains in the Mufei dropper, increasing the pressure of the medicinal liquid in the pipeline, and inputting the remaining medicinal liquid to reduce the waste of medicinal liquid and unnecessary contamination of medicinal liquid.

5. Since the infusion channels of the fixed support block are at different heights in the height direction, the central controller can be used to control the motor to drive the sliding valve core to rotate more than 45 degrees to stop the infusion of the infusion set, which is convenient for stopping the infusion when an accident occurs in the infusion.

Description of drawings

Fig. 1 is the structural representation of existing infusion set

Fig. 2 is the structural representation of the multifunctional self-adaptive continuous infusion device provided by the present invention

Fig. 3 is a sectional view of the regulating dropper along the A-A direction in Fig. 2

Fig. 4 is a sectional view of the regulating dropper along the B-B direction in Fig. 3

Figure 5 is a cross-sectional view of the fixed support block along the C-C direction in Figure 4

Figure 6 is the position indication panel of the sliding spool in Figure 2

Correspondence between reference numerals and parts names in Fig. 1: upper part 1' of infusion set, bottle stopper puncture protector 11', bottle stopper puncturer 12', air filter 13', water stop clip 14', transfusion Middle part 2', Murphy's dropper 21', lower part 3' of infusion set, long infusion catheter 31', liquid medicine filter 32', conical joint 33', flow regulating device 34'; upper part 1 of infusion set, bottle stopper Puncture protector 11, bottle stopper puncturer 12, air filter 13, water stop clip 14, middle part of infusion set 2, control dropper 21, conical joint 22, lower part of infusion set 3, long infusion catheter 31, liquid medicine filter 32 , conical joint 33; infusion controller 4, transmission shaft 41, motor 42, central controller 43, flow sensor 44, infrared position sensor 45, manual switch 46 of infusion control mechanism, sliding spool 47, vertical infusion channel of sliding spool 471, sliding spool horizontal infusion channel 472, hydraulic cylinder 48, hydraulic cylinder support 481, dropper 5, dropper wall 51, liner 52, infusion cone interface 53, fixed support block 54, fixed support block infusion channel 541, Sliding spool position indicator panel 6.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, it is a structural schematic diagram of an existing infusion set. The existing infusion set is composed of an upper part 1' of the infusion set, a middle part 2' of the infusion set, and a lower part 3' of the infusion set. Among them, the upper part 1' of the infusion set includes: a bottle stopper puncture protector 11', a bottle stopper puncturer 12', an air filter 13', and a water-stop clip 14'; the middle part 2' of the infusion set includes: a Murphy dropper 21' ; The lower part 3' of the infusion set includes: a long infusion catheter 31', a liquid medicine filter 32', a conical joint 33', and a flow regulating device 34'. Each component is connected successively according to the order shown in Fig. 1, and the cork piercer 12' is connected with the infusion bottle, and the conical joint 34' is connected with the intravenous infusion needle, thus forming the complete structure of the existing infusion set.

Fig. 2 is a schematic structural diagram of the multifunctional self-adaptive continuous infusion set provided by the present invention, which is composed of an upper part 1 of the infusion set, a middle part 2 of the infusion set, and a lower part 3 of the infusion set in sequence. Among them, the upper part 1 of the infusion set includes: a bottle stopper puncture protector 11, a bottle stopper puncturer 12, an air filter 13, and a water stop clip 14; the middle part 2 of the infusion set includes: a control dropper 21, a conical joint 22; Including: a long infusion catheter 31, a liquid medicine filter 32, and a conical joint 33. Comparing the multifunctional self-adaptive continuous infusion device with the existing infusion device, it can be seen that the present invention adds a control dropper 21, and reduces the original Murphy's dropper 21' and flow regulating device 34' at the same time. It should be noted that, in the multifunctional self-adaptive continuous infusion set designed by the present invention, the overall structure of the upper part 1 of the infusion set and the lower part 3 of the infusion set are the same as those of the prior art, and each of the upper part 1 of the infusion set and the lower part 3 of the infusion set For the connection modes among the components, reference can be made to the prior art. The upper part 1 of the infusion set, the middle part 2 of the infusion set and the lower part 3 of the infusion set are connected sequentially through the conical joint 22, the cork piercer 12 is connected with the infusion bottle, and the conical joint 33 is connected with the intravenous infusion needle, thus forming a multifunctional self-adaptive The complete structure of the continuous infusion set.

Fig. 3 and Fig. 4 are the cross-sectional views of the regulating dropper 21 in Fig. 2, and at this time the sliding valve core 47 is in the initial position, that is, the horizontal infusion channel 472 on the sliding valve core is guaranteed according to the number of infusion bottles when the last bottle of infusion bottle is It communicates with the lowest infusion channel 541 on the fixed support block 54 .

As shown in Figure 4, in this embodiment, the regulating dropper 21 includes an infusion controller 4 and a dropper 5, wherein:

Infusion controller 4 comprises drive shaft 41, motor 42, central controller 43, flow sensor 44, infrared position sensor 45, infusion control mechanism manual switch 46, slide spool 47, slide spool vertical infusion channel 471, slide spool Horizontal infusion channel 472, hydraulic cylinder 48, hydraulic cylinder support 481.

One end of the transmission shaft 41 is connected with the motor 42, and the other end is connected with the sliding valve core 47, thereby driving the sliding valve core 47 to rotate. The tail of the motor 42 is connected to the hydraulic cylinder 48. The extension and shortening of the hydraulic cylinder drives the motor 42 and the sliding valve core 47 to slide up and down. The hydraulic cylinder 48 is fixed to the fixed support block 54 through the hydraulic cylinder support 481 . It is explained here that the hydraulic cylinder 481 adopted in the present invention is non-rotating, that is, the piston rod cannot rotate. The flow sensor 44 is located inside the infusion cone interface 53 and is used to detect the flow rate of the medical solution. The infrared position sensor 45 is located at the end of the infusion channel 541 of the fixed support block, and is used to detect the relative positional relationship between the infusion channel 541 of the fixed support block and the horizontal infusion channel 472 of the sliding spool.

The central controller 43 is integrated with the motor 42, and controls the forward and reverse rotation of the motor 42 according to the liquid medicine flow rate information fed back by the flow sensor 44 and the position information fed back by the infrared position sensor 45, thereby controlling the sliding spool 47 to slide up and down. The manual switch 46 of the infusion control mechanism is located on the fixed support block 54, and the up and down position of the sliding valve core 47 can be changed manually. The vertical infusion channel 471 of the sliding spool and the horizontal infusion channel 472 of the sliding spool are arranged inside the sliding spool 47, the vertical infusion channel 471 of the sliding spool is located at the axial center of the sliding spool 47, and its depth accounts for half of the height of the sliding spool 47 ; The eight horizontal infusion channels 472 of the sliding spool are evenly distributed on the same height of the sliding spool 47 along the circumference, and all communicate with the vertical infusion channel 471 .

The manual switch 46 of the infusion control mechanism can control the position of the sliding spool 47 manually, and make the horizontal infusion channel 472 on the sliding spool 47 communicate with the different infusion channels 541 on the fixed support block as required, and selectively connect The required infusion bottle. The control function part and the executive function part are connected according to the connection mode shown in FIG. 4 , so as to form a complete infusion controller 4 . The dropper 5 is arranged directly below the vertical infusion channel 471 .

The dropper 5 includes: a dropper wall 51 , a liner 52 , an infusion cone interface 53 , a fixed support block 54 , and a fixed support block infusion channel 541 . In actual use, the infusion conical interface 53 on the upper end of the regulating dropper can be provided with two specifications of 4 interfaces and 8 interfaces according to clinical needs.

As shown in FIG. 4 , the dropper wall 51 , the liner 52 , the infusion cone interface 53 , and the fixed support block 54 are combined into a complete dropper 5 in the manner shown in FIG. 4 .

The material of the dropper wall 51 is stainless steel, which provides a temporary storage space for the liquid medicine and is the basis of the dropper 5 . The 54 pieces of fixed supports are made of hard plastic, which can reduce the weight of the entire dropper 5 to the greatest extent and will not be deformed at the same time.

The dropper wall 51 and the fixed support block 54 are threadedly connected, and the infusion cone interface 53 is arranged at the entrance of the fixed support block infusion channel 541 by threaded connection, so that it can be disassembled during disinfection and cleaning, thereby ensuring the control of the inside of the dropper 21. Clean and sanitize completely and thoroughly. What liner 52 used is rubber material, is glued into a whole with fixed support 54, and effect is to protect fixed support 54.

The sliding spool 47 is made of copper alloy and designed into a cylindrical structure to ensure the high reliability and low failure rate of the overall structure of the regulating dropper 21 . The contact gap between the sliding valve core 47 and the fixed support block 54 is relatively small to ensure good contact and reliable sealing.

The sliding spool 47 of the infusion controller 4 is installed inside the fixed support block 54 of the dropper 5, the flow sensor 44 is installed inside the infusion cone interface 53 at the upper end of the dropper 5, and the infusion controller 4 and the dropper 5 are combined into a complete The regulation dropper 21.

Fig. 5 is a sectional view of the fixed support block along the C-C direction in Fig. 4. As shown in the figure, the larger the overlapping area of the infusion channel 541 of the fixed support block and the horizontal infusion channel 471 of the sliding spool, the faster the liquid medicine flow rate, and vice versa.

FIG. 6 is a position indicating panel of the sliding valve core 47 in FIG. 2 , which can display the position information of the sliding valve core 47 relative to the fixed support block 54 in real time.

The multifunctional self-adaptive continuous infusion set provided by the present invention mainly realizes different functions by adjusting the dropper 21 . Further description will be given below in conjunction with specific examples.

Specific embodiment 1, the multifunctional continuous infusion device of the present invention can realize the function of automatic multi-bottle continuous infusion of medicinal liquid without manual intervention. As shown in FIG. 2 , in actual use, firstly, an appropriate control dropper 21 is selected according to the number of required infusion bottles. Secondly, connect the upper part 1 of the infusion set for the final infusion with the lowest height infusion cylinder interface 53 on the fixed support block 54, and the other upper parts of the infusion set are connected with other infusion cone interfaces 53 on the fixed support block from low to high in order of injection. connect. Since there is only one infusion channel 472 on the sliding spool 47 , it can only be kept in communication with one of the infusion channels 541 on the fixed support block 54 . At the same time, the sliding spool 47 has sufficient length so that when the sliding spool infusion channel 471 communicates with the highest or lowest infusion channel 541 of the fixed support block 54, all other infusion channels on the fixed support block 54 are closed. As shown in FIG. 3 , only one position of the infusion channel of the regulating dropper 21 is in a connected state, and the rest are in a closed state. Finally, all the infusion bottles are suspended in place at one time, and each infusion bottle is connected with the multifunctional self-adaptive continuous infusion device by using the cork piercer 12. At this time, the first infusion bottle starts to automatically infuse. When the first infusion bottle infusion is completed When the flow rate of the flow sensor 44 arranged in the channel is 0, the central controller 43 will control the motor 42 and the hydraulic cylinder 48 to drive the sliding spool 47 to rotate and slide to the position where the second infusion bottle communicates. 45 feeds back the position of the sliding spool 47, and at the same time the flow sensor 44 provided in the second channel feeds back the flow velocity signal to ensure that the sliding spool 47 slides accurately to the communication position of the second infusion bottle, and the rest of the infusion bottles are all closed at this time. When the second infusion bottle medicinal liquid is also transfused, repeat the previous steps, and so on, until the medicinal liquid of the last infusion bottle is transfused, the central controller 43 controls the hydraulic cylinder 48 to drive the sliding spool 47 to slide to the set position. Closed state position (sliding spool infusion channels are lower than all infusion channels on the fixed support block), all infusion channels are closed.

Specific embodiment 2, the multifunctional continuous infusion device in this embodiment can automatically complete the pre-infusion confirmation and post-infusion cleaning of the continuous infusion of multiple bottles of precious medicinal liquid. The process of continuous infusion of multiple bottles of precious medicinal liquid is similar to that of continuous infusion of multiple bottles of common medicinal liquid, as shown in Figure 2. The brine, referred to as confirmation of cleaning with brine) to select the appropriate regulation dropper 21. Secondly, connect the upper part of the infusion set with saline for cleaning with an infusion cylinder interface 53 on the fixed support block 54. The principle is to ensure that the final infusion bottle is connected with the lowest height infusion cylinder interface 53, and the other upper parts of the infusion set are in accordance with the injection method. The opposite sequence is connected with other infusion cone interfaces 53 whose height is from low to high on the fixed support block. As shown in FIG. 3 , only one position of the infusion channel of the regulating dropper 21 is in a connected state, and the rest are in a closed state. Finally, all the infusion bottles are suspended in place at one time, and each infusion bottle is connected with the multifunctional self-adaptive continuous infusion device by using the cork piercer 12. At this time, the first infusion bottle (confirming the saline for cleaning) will automatically infuse the liquid, when After the medical staff confirms that the infusion is normal, manually adjust the manual switch 46 of the regulating and controlling dropper 21 to be adjusted to the open state of the second infusion bottle, and now the first infusion bottle (confirming the saline solution for cleaning) is closed; when the second infusion bottle transfusion is completed, The flow rate of the flow sensor 44 set in this passage is 0, the central controller 43 will control the motor 42 and the hydraulic cylinder 48 to drive the sliding valve core 47 to rotate and slide to the position where the third infusion bottle is connected, and the infrared position sensor 45 will feed back the motor 42 rotation position, and the flow sensor 44 that is arranged on the third channel feeds back the flow rate signal to ensure that the sliding valve core 47 slides accurately to the connected state position of the third infusion bottle, and all the other infusion bottles are closed at this time. When the third infusion bottle medicinal liquid is also lost, repeat the previous steps, and so on, until the last bottle of medicinal liquid infusion bottle is lost, the central controller 43 controls the central controller 43 to control the hydraulic cylinder 48 to drive the sliding valve core 47 Slide to the set closed state position (the height of the infusion channel of the sliding spool is lower than that of all the infusion channels on the fixed support block), and close all the infusion channels. When the medical personnel pull out the needle, adjust the manual switch 46 of the infusion control mechanism to the open state of the first infusion bottle (confirm the saline for cleaning), and the remaining medicinal liquid in the infusion set will continue to be input into the human body, and the infusion set will automatically clean the remaining medicinal liquid Work.

Specific embodiment 3, the multifunctional continuous infusion device in this embodiment can set and automatically adjust the infusion speed according to the actual situation of the patient. FIG. 5 is a cross-sectional view of the fixed support block 54 in FIG. 3 . The different overlapping areas of the infusion channel 541 of the fixed support block and the infusion channel 472 of the sliding valve core can realize different control of the liquid medicine flow rate. As shown in Figure 3 and Figure 5, during the actual infusion process, the flow sensor 44 feeds back the actual liquid medicine flow rate in real time, and the infrared position sensor 45 feeds back the position of the sliding valve core infusion channel 472 relative to the fixed support block infusion channel 541 in real time relation. When the actual medicinal liquid flow rate fed back by the flow sensor 45 is different from the pre-set infusion rate, the central controller 43 controls the motor 42 to adjust the position of the sliding spool 47 according to the position information of the sliding spool 47 fed back by the infrared position sensor 45, Thus, the overlapping area of the infusion channel 472 on the sliding valve core and the infusion channel 541 of the fixed support block is changed, thereby changing the flow rate of the liquid medicine, and finally keeping the actual flow rate of the liquid medicine consistent with the preset infusion rate.

In specific embodiment 4, when the infusion ends, the medicinal liquid remains in a small amount in the dropper 21 and the infusion tube 31. Because the pressure is too low, there is always a part of the medicinal liquid remaining in the infusion tube 31, and the sliding valve core 47 is in a closed state (sliding The infusion channel 472 of the spool 47 is lower than all the infusion channels 541 on the fixed support block 54), at this time, the central controller 43 controls the hydraulic cylinder 47 to move downward, and the downward movement of the sliding spool 47 is used to squeeze the middle of the infusion tube 31. increase the pressure of the medicinal liquid in the infusion tube 31, and input the remaining medicinal liquid to reduce the waste of medicinal liquid.

Specific embodiment 5, since the infusion channels 541 of the fixed support block 54 are in different height positions in the height direction, the central controller 43 can be used to control the motor 42 to drive the sliding valve core 47 to rotate more than 45 degrees, stop the infusion set, and be convenient when an accident occurs in the infusion Stop the infusion if necessary.

The multifunctional self-adaptive continuous infusion set provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principles and implementation modes of the present invention, and the descriptions of the above embodiments are only used to help understand the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (5)

1. a kind of slidingtype regulation and control dropper of multifunctional adaptive continuous transfusion system, including infusion controller (4) and dropper (5), it is characterised in that it is characterized in that：

Infusion controller (4) is opened manually including transmission shaft (41), motor (42), master controller (43), infusion control mechanism Close (46), sliding valve core (47), the vertical infusion channel of sliding valve core (471), the horizontal infusion channel of sliding valve core (472), hydraulic pressure Cylinder (48), hydraulic cylinders bearing (481)；

Transmission shaft (41) one end is connected with motor (42), and the other end is connected with sliding valve core (47), so as to drive slide-valve Core (47) rotates；

Motor (42) tail portion connection liquid cylinder pressure (48), hydraulic cylinder elongation, which is shortened, to be driven on motor (42) and sliding valve core (47) Lower slider, hydraulic cylinder (48) are fixed on fixed support block (54) by hydraulic cylinders bearing (481)；

Master controller (43) is integrated with motor (42), and controls the positive and negative rotation of motor (42), is controlled simultaneously Sliding valve core (47) slides up and down；The vertical infusion channel of sliding valve core (471) and the horizontal infusion channel of sliding valve core (472) setting Internal in sliding valve core (47), the vertical infusion channel of sliding valve core (471) is positioned at sliding valve core (47) shaft core position, eight slips The horizontal infusion channel of spool (472) is uniformly distributed circumferentially in the identical height of sliding valve core (47), and logical with vertical infusion Road (471) is connected；Dropper (5) is arranged on the underface of vertical infusion channel (471).

2. the slidingtype regulation and control dropper of multifunctional adaptive continuous transfusion system according to claim 1, it is characterised in that：Also Including flow sensor (44) and infrared position sensor (45), wherein：

Flow sensor (44) is internal positioned at infusion circular cone interface (53), for detecting the flow velocity of liquid；

Infrared position sensor (45) is defeated for detecting fixed support block positioned at the end of fixed support block infusion channel (541) The relative position relation of liquid channel (541) and the horizontal infusion channel of sliding valve core (472)；

The location information that the liquid flow rate information and infrared position sensor (45) fed back according to flow sensor (44) are fed back is used In the positive and negative rotation of control motor (42).

3. the slidingtype regulation and control dropper of multifunctional adaptive continuous transfusion system according to claim 1, it is characterised in that：It is defeated Hydraulic control mechanism manual switchs (46) in fixed support block (54), can change sliding valve core (47) by manually mode Upper-lower position.

4. the slidingtype regulation and control dropper of multifunctional adaptive continuous transfusion system according to claim 1, it is characterised in that：Drop Pipe (5) includes：Dropper wall (51), infusion circular cone interface (53), fixed support block (54), fixed support block infusion channel (541)； To be threadedly coupled between dropper wall (51) and fixed support block (54), infusion circular cone interface (53), which is connected through a screw thread, to be set to admittedly Determine supporting block infusion channel (541) inlet.

5. the slidingtype regulation and control dropper of multifunctional adaptive continuous transfusion system according to claim 1, it is characterised in that：It is defeated Fixed support block (54) of the sliding valve core (47) of fluid controller (4) mounted on dropper (5) is internal, flow sensor (44) installation Infusion circular cone interface (53) in dropper (5) upper end is internal.