CN110898286A - Infusion pump with adjustable flow rate and flow rate regulator thereof - Google Patents
Infusion pump with adjustable flow rate and flow rate regulator thereof Download PDFInfo
- Publication number
- CN110898286A CN110898286A CN201911103279.5A CN201911103279A CN110898286A CN 110898286 A CN110898286 A CN 110898286A CN 201911103279 A CN201911103279 A CN 201911103279A CN 110898286 A CN110898286 A CN 110898286A
- Authority
- CN
- China
- Prior art keywords
- flow
- valve core
- liquid
- shell
- flow rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 192
- 239000003814 drug Substances 0.000 claims abstract description 72
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000011550 stock solution Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000036592 analgesia Effects 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 238000002512 chemotherapy Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
Landscapes
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an infusion pump with adjustable flow rate and a flow rate regulator thereof, and relates to the technical field of medical instruments. A flow-rate-adjustable infusion pump comprises a liquid storage part and a flow rate regulator which are communicated through a connecting pipeline, wherein the output end of the flow rate regulator is provided with a liquid outlet; the flow rate regulator comprises a valve core and a shell, wherein the valve core is sleeved inside the shell and can rotate relative to the shell; the liquid medicine flow regulating valve is characterized in that a liquid inlet pipeline and a liquid outlet pipeline are arranged on the shell, a plurality of flow guide pipes with different flow conducting rates are arranged in the valve core, the flow guide pipes are equidistantly arranged on the vertical surface of the valve core in a layered mode, each layer of flow guide pipe and other layers of flow guide pipes are arranged in an angled mode, and one flow guide pipe in the valve core is regulated through rotating the valve core and is communicated with the liquid inlet pipeline and the liquid outlet pipeline on the shell to provide corresponding liquid medicine flow. The flow-regulating valve is simple in regulating mode, can accurately regulate flow, and is convenient to mount and dismount.
Description
Technical Field
The invention relates to the technical field of medical instruments.
Background
Infusion pumps, as a device for delivering liquids and gases, are widely used for continuous or intermittent administration of a small amount of medication such as postoperative analgesia, chemotherapy, etc.; the infusion pump can be used for assisting the injection of a patient through doctors and nurses, and can also be used for adjusting the dosage of the medicament according to the pain degree by the patient, if the dosage is too small, the analgesic effect cannot be achieved, and if the dosage is too large, the side effect is generated on the patient, so the adjustment of the dosage of the medicament is an important problem. Accordingly, infusion pumps are typically equipped with a flow regulator for controlling the flow rate of the liquid in the infusion line.
At present, a flow regulator in an infusion apparatus is basically of a gate tube type, flow is easy to change along with time change in a pipeline controlled by the gate tube type regulator, and the problems of low regulation precision and unstable flow change exist in practical application. In order to realize precise adjustment, the prior art also provides a rotary precise flow regulator, and compared with a brake pipe type flow regulator, the rotary precise flow regulator has the advantages of better sealing performance, higher flow regulation precision, and too complex internal structure, and for a regulator with smaller volume requirement, the too complex internal structure causes the flow regulator to be difficult to perform injection molding, the flow error between finished products is larger, the yield is low, and the large-scale popularization is difficult to realize.
Disclosure of Invention
It is an object of the present invention to overcome the deficiencies of the prior art by to provide an adjustable flow rate infusion pump and flow rate regulator therefor. According to the infusion pump with the adjustable flow speed, the guide pipes with different conduction flows in the valve core are communicated with the liquid inlet pipeline and the liquid outlet pipeline through rotation of the valve core, so that different liquid medicine flows can be selected, the adjusting mode is simple, the flow can be accurately adjusted, and the infusion pump is convenient to mount and dismount.
To achieve the above object, the present invention provides the following solution
A flow-rate-adjustable infusion pump comprises a liquid storage part and a flow rate regulator which are communicated through a connecting pipeline, wherein the output end of the flow rate regulator is provided with a liquid outlet;
the flow rate regulator comprises a valve core and a shell, wherein the valve core is sleeved inside the shell and can rotate relative to the shell; the liquid medicine flow regulating valve is characterized in that a liquid inlet pipeline and a liquid outlet pipeline are arranged on the shell, a plurality of flow guide pipes with different flow conducting rates are arranged in the valve core, the flow guide pipes are equidistantly arranged on the vertical surface of the valve core in a layered mode, each layer of flow guide pipe and other layers of flow guide pipes are arranged in an angled mode, and one flow guide pipe in the valve core is regulated through rotating the valve core and is communicated with the liquid inlet pipeline and the liquid outlet pipeline on the shell to provide corresponding liquid medicine flow.
Furthermore, the pipe diameters of all layers of flow guide pipes in the valve core are the same, and the flow conducting rate of the flow guide pipe is adjusted by installing flow limiting pipes with the same outer diameter and inner diameter but different lengths in the pipeline of the flow guide pipe.
Furthermore, 4 flow guide pipes are arranged in the valve core, the 4 flow guide pipes are arranged on the vertical surface of the valve core in 4 layers at equal intervals, and the 4 flow guide pipes are uniformly distributed at an angle of 45 degrees on the horizontal surface of the valve core; and one guide pipe in the valve core can be communicated with the liquid inlet pipeline and the liquid outlet pipeline when the valve core rotates by 45 degrees.
Furthermore, 4 honeycomb ducts pass through the center line of the valve core and penetrate through the valve core, and the conduction flow of the honeycomb ducts is 2ml/h, 4ml/h, 6ml/h and 8ml/h from small to large.
Further, the liquid inlet pipeline on the shell comprises a liquid inlet pipe and a liquid medicine inflow groove, and an outlet of the liquid inlet pipe is communicated with the liquid medicine inflow groove; the liquid outlet pipeline comprises a liquid outlet pipe and a liquid medicine outflow groove, an inlet of the liquid outlet pipe is communicated with the liquid medicine outflow groove, and an outlet of the liquid outlet pipe is a liquid outlet; the rotary valve core enables one guide pipe to correspond to the liquid medicine inlet groove and the liquid medicine outlet groove, so that liquid medicine can enter the liquid outlet pipe from the liquid inlet pipe through the guide pipe to reach the liquid outlet.
Further, the liquid inlet pipe and the liquid outlet pipe are arranged at an angle of 180 degrees, the liquid medicine flowing into the groove and the liquid medicine flowing out of the groove are vertically arranged on the shell and are the same in height, and the height of each layer of flow guide pipe capable of covering the valve core enables the two ends of each layer of flow guide pipe to correspond to the liquid medicine flowing into the groove and the liquid medicine flowing out of the groove respectively.
Furthermore, the shell is provided with position indication marks of the liquid medicine inflow groove and the liquid medicine outflow groove, and the surface of the valve core is provided with a rotating handle and position indication marks and/or flow indication marks of each guide pipe.
Further, the liquid outlet is provided with a liquid outlet joint, and the connecting pipeline is provided with a medicine adding port for adding medicine.
Further, the liquid storage part comprises a pump shell and a silica gel liquid storage bag arranged in a cavity formed by the pump shell.
The invention also provides a flow rate regulator of the infusion pump, which comprises a valve core and a shell, wherein the valve core is sleeved in the shell and can rotate relative to the shell; the liquid medicine flow regulating valve is characterized in that a liquid inlet pipeline and a liquid outlet pipeline are arranged on the shell, a plurality of flow guide pipes with different flow conducting rates are arranged in the valve core, the flow guide pipes are equidistantly arranged on the vertical surface of the valve core in a layered mode, each layer of flow guide pipe and other layers of flow guide pipes are arranged in an angled mode, and one flow guide pipe in the valve core is regulated through rotating the valve core and is communicated with the liquid inlet pipeline and the liquid outlet pipeline on the shell to provide corresponding liquid medicine flow.
Compared with the prior art, the invention has the following advantages and positive effects that the diversion pipes with different conduction flow rates in the valve core are communicated with the liquid inlet pipeline and the liquid outlet pipeline through the rotation of the valve core, so that different liquid medicine flow rates can be selected, the adjusting mode is simple, the flow rate can be accurately adjusted, and the installation and the disassembly are convenient.
Drawings
Fig. 1 is a schematic structural diagram of an adjustable flow rate infusion pump according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a flow rate regulator according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a housing of a flow rate regulator according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a valve core installed in a housing according to an embodiment of the present invention.
Fig. 5 is a front view of a flow rate regulator provided in an embodiment of the present invention.
Fig. 6 is a side view of a flow rate regulator provided in an embodiment of the present invention.
Fig. 7 is a schematic flow rate adjustment diagram of a flow rate adjuster according to an embodiment of the present invention.
Reference character
An adjustable flow rate infusion pump 10;
a liquid storage part 100, a pump shell 110, a cavity 120 and a liquid storage bag 130;
a flow rate regulator 200;
the valve core 210, the shell 211, the delivery pipe 212, the rotating handle 213 and the indicating mark 214;
the device comprises a shell 220, a shell 221, a groove 222, a liquid inlet pipe 223, a liquid medicine inflow groove 224, a liquid outlet pipe 225, a liquid medicine outflow groove 226 and a groove indication mark 227;
a fluid inlet 280, a fluid outlet 290;
the connection pipe 300 is connected to the outside of the container,
the liquid outlet joint 400 is arranged on the upper surface of the shell,
a dosing port 500.
Detailed Description
The adjustable flow rate infusion pump and its flow rate regulator disclosed in the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that technical features or combinations of technical features described in the following embodiments should not be considered as being isolated, and they may be combined with each other to achieve better technical effects. In the drawings of the embodiments described below, the same reference numerals appearing in the respective drawings denote the same features or components, and may be applied to different embodiments. Thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
It should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes and other dimensions, should be construed as falling within the scope of the invention unless the function and objectives of the invention are affected. The scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that described or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
Examples
Referring to fig. 1, an adjustable flow rate infusion pump is provided for an embodiment of the present invention.
The adjustable flow rate infusion pump 10 comprises a liquid storage part 100 and a flow rate regulator 200 which are communicated through a connecting pipeline 300, wherein the output end of the flow rate regulator 200 is provided with a liquid outlet 290.
The liquid outlet 290 may be provided with a liquid outlet joint 400, as required.
The connecting pipeline 300 can be provided with a medicine adding port so that an operator can add medicines according to needs.
The reservoir 100 includes a pump housing 110 and a silicone reservoir 130 mounted within a cavity 120 formed by the pump housing 110. Of course, the reservoir 130 may be made of other materials as required, and should not be construed as limiting the structure of the present invention.
The flow rate regulator 200 includes a regulating valve composed of a valve core 210 and a housing 220. Referring to fig. 2, the spool sleeve 210 is received in an internal recess of the housing 220 and is rotatable relative to the housing 220.
The outer shell 220 is provided with a liquid inlet pipeline and a liquid outlet pipeline, the valve core 210 is provided with a plurality of guide pipes 220 with different conduction flow rates, the guide pipes 220 are arranged in layers at equal intervals on the vertical surface of the valve core 210, and each layer of guide pipe 220 and other layers of guide pipes 220 are arranged at an angle. In operation, one of the flow tubes 220 of the valve core is adjusted by rotating the valve core 210 to communicate with the liquid inlet and outlet pipes on the housing to provide corresponding liquid medicine flow.
In this embodiment, the housing 211 of the valve core 210 preferably has a cylindrical structure, and a plurality of flow conduits 220 are arranged in layers at equal intervals on the vertical surface of the cylinder, and each layer is provided with one flow conduit 220.
The housing 221 of the housing 220 has an elliptic cylinder structure, and a cylindrical groove 222 is formed in the housing 221, and the size of the cylindrical groove 222 is matched with that of the housing 211 of the valve core 210, so that the housing 211 of the valve core 210 can be accommodated in the groove 222.
In this embodiment, the tube diameters of the flow guide tubes 212 of the valve cores 210 are the same, and the flow rate of the flow guide tube is adjusted by installing flow-limiting tubes with the same outer diameter and inner diameter but different lengths in the tubes of the flow guide tubes 212. At this point, the flow rate of the infusion pump is adjusted to the tubing flow rate of the corresponding delivery tube 212.
Preferably, as a typical mode, 4 flow guide pipes 212 are arranged in the valve core 210, and the 4 flow guide pipes 212 are arranged in 4 layers at equal intervals on the vertical surface of the valve core 210.
Meanwhile, the 4 flow guide pipes 212 are uniformly distributed at an angle of 45 degrees on the horizontal plane of the valve core 210. Thus, for every 45 degrees of rotation of the valve core 210, one of the fluid conduits 212 of the valve core 210 can communicate with the fluid inlet and outlet lines of the housing 220.
Preferably, the 4 delivery pipes 212 each pass through the valve body 210 along the center line thereof. Taking the valve core 210 as a cylinder, that is, 4 delivery tubes 212 pass through the axis of the rotation surface of the fixed straight line of the cylinder, and the length of the delivery tube 212 is the diameter of the circular surface of the cylinder. In this embodiment, the flow rate of the flow guide tube 212 is 2ml/h, 4ml/h, 6ml/h and 8ml/h sequentially from small to large.
As shown in fig. 2 and 3, the liquid inlet pipe on the housing 220 may include a liquid inlet pipe 223 and a liquid medicine inlet groove 224, and an outlet of the liquid inlet pipe 223 is communicated with the liquid medicine inlet groove 224; the liquid outlet pipe comprises a liquid outlet pipe 225 and a liquid medicine outflow groove 226, an inlet of the liquid outlet pipe 225 is communicated with the liquid medicine outflow groove 226, and an outlet of the liquid outlet pipe 225 is a liquid outlet 290. In operation, rotation of the valve core 210 causes a fluid conduit 212 to correspond to the fluid inlet slot 224 and the fluid outlet slot 226, such that fluid may enter through the fluid conduit 212 from the fluid inlet 280 and then through the fluid inlet 223 into the fluid outlet 225 to the fluid outlet 290.
As shown in fig. 3 and 4, the liquid inlet pipe 223 and the liquid outlet pipe 225 are arranged at an angle of 180 degrees, and the liquid medicine inlet groove 224 and the liquid medicine outlet groove 226 are vertically arranged on the housing 220 and have the same height. As shown in fig. 2, 5 and 6, inlets of the respective fluid conduits may be communicated with the chemical solution inlet groove 224, and outlets of the respective fluid conduits may be communicated with the chemical solution outlet groove 226. Therefore, both ends of each layer of the flow guide tube 212 can be respectively corresponding to the chemical liquid inflow groove 224 and the chemical liquid outflow groove 226.
In this embodiment, it is preferable that the housing 220 is provided with position indicators of the liquid inlet 224 and the liquid outlet 226, the valve core 210 is provided with a rotation handle 213 on the surface thereof, and the position indicators and/or the flow indicators of the respective delivery tubes 212.
The position indication marks can indicate the horizontal position of each flow guide pipe in the valve core, and an operator can conveniently adjust the rotation angle to select the corresponding flow guide pipe. By way of example and not limitation, triangular markers may be used, for example.
The flow indicating mark corresponds to the conduction flow of the flow guide pipe, so that an operator can conveniently adjust the rotation angle to select the corresponding flow. By way of example and not limitation, scale values, such as arabic numerals 2, 4, 6, and 8, are provided on the surface of the case of the valve core 210 according to the conduction flow values of the flow guide tube, such as 2ml/h, 4ml/h, 6ml/h, and 8ml/h, to represent the corresponding flow values, or the corresponding flow magnitudes are represented by grade values, such as i, ii, iii, and sex.
By way of example only, the flow adjustment process of the adjustable flow rate infusion pump 10 described above is described in detail below with reference to fig. 7.
First, in the original state, the valve core 210 and the outer shell 220 of the present invention are communicated with the liquid inlet pipeline and the liquid outlet pipeline of the outer shell through the first layer of the guide pipe 212 on the valve core 210, so as to realize the communication of the inner and outer guide channels. After the liquid medicine enters the valve core 210, the liquid medicine flows from the liquid inlet pipeline to the first guide pipe 212 and then flows out from the liquid outlet pipeline.
When the valve core 210 rotates 45 degrees along with the central line, the flow guide holes 212 of the fourth layer are communicated with the liquid inlet pipeline and the liquid outlet pipeline of the shell, and the flow guide pipe 212 of the first layer is not communicated with the liquid inlet pipeline and the liquid outlet pipeline any more, so that the liquid medicine flows to the flow guide pipe 212 of the fourth layer.
If the valve core 210 rotates 45 degrees, the third layer of draft tube 212 is communicated with the liquid inlet pipeline and the liquid outlet pipeline of the shell, and the fourth layer of draft tube 212 is not communicated with the liquid inlet pipeline and the liquid outlet pipeline, the liquid medicine flows to the third layer of draft tube 212.
If the valve core 210 rotates 45 degrees again, the second layer of draft tube 212 is communicated with the liquid inlet pipeline and the liquid outlet pipeline of the shell, and the third layer of draft tube 212 is not communicated with the liquid inlet pipeline and the liquid outlet pipeline, the liquid medicine flows to the second layer of draft tube 212.
Because the conduction flow of each layer of the guide pipe is different, different guide pipes are connected to the liquid outlets, and therefore liquid medicines with different flows are provided. Therefore, the flow guide holes on different layers are selected to be communicated with the liquid inlet pipeline and the liquid outlet pipeline of the shell according to different rotating positions of the valve core, so that liquid medicines with different flow rates can be provided, and the valve is ingenious in structure and convenient to use.
In another embodiment of the present invention, a flow rate regulator for an infusion pump is also provided.
The flow rate regulator comprises a valve core and a shell, wherein the valve core is sleeved inside the shell and can rotate relative to the shell; the liquid medicine flow regulating valve is characterized in that a liquid inlet pipeline and a liquid outlet pipeline are arranged on the shell, a plurality of flow guide pipes with different flow conducting rates are arranged in the valve core, the flow guide pipes are equidistantly arranged on the vertical surface of the valve core in a layered mode, each layer of flow guide pipe and other layers of flow guide pipes are arranged in an angled mode, and one flow guide pipe in the valve core is regulated through rotating the valve core and is communicated with the liquid inlet pipeline and the liquid outlet pipeline on the shell to provide corresponding liquid medicine flow.
The valve core preferably adopts a cylindrical structure, a plurality of guide pipes are arranged on the vertical surface of the cylinder in an equidistant layered mode, and each layer is provided with one guide pipe.
The shell is of an elliptic cylinder structure, a cylinder groove is formed in the shell, and the size of the cylinder groove is matched with that of the valve core, so that the valve core can be accommodated in the groove.
The pipe diameters of the flow guide pipes of all layers in the valve core are the same, and the conduction flow of the flow guide pipes is adjusted by installing flow limiting pipes with the same outer diameter and inner diameter but different lengths in the pipelines of the flow guide pipes. At this time, the flow rate of the infusion pump is adjusted to the flow rate of the corresponding duct of the flow guide tube.
Preferably, as a typical mode, 4 guide pipes are arranged in the valve core, and the 4 guide pipes are arranged on the vertical surface of the valve core at equal intervals and in 4 layers.
Meanwhile, the 4 guide pipes are uniformly distributed at an angle of 45 degrees on the horizontal plane of the valve core. Therefore, when the valve core rotates by 45 degrees, one guide pipe in the valve core can be communicated with the liquid inlet pipeline and the liquid outlet pipeline on the shell.
Preferably, the 4 flow guide pipes all pass through the valve core and pass through the valve core. Taking the case that the valve core adopts a cylinder, that is, 4 guide pipes all pass through the axis of the rotating surface of the fixed straight line of the cylinder, and the length of each guide pipe is the diameter of the circular surface of the cylinder. In the embodiment, the conduction flow of the flow guide pipe is sequentially 2ml/h, 4ml/h, 6ml/h and 8ml/h from small to large.
The liquid inlet pipeline on the shell can comprise a liquid inlet pipe and a liquid medicine inflow groove, and the outlet of the liquid inlet pipe is communicated with the liquid medicine inflow groove; the liquid outlet pipeline comprises a liquid outlet pipe and a liquid medicine outflow groove, the inlet of the liquid outlet pipe is communicated with the liquid medicine outflow groove, and the outlet of the liquid outlet pipe is a liquid outlet. During operation, rotatory case makes a honeycomb duct and liquid medicine flow go into the groove and liquid medicine outflow groove correspond for the liquid medicine can get into from the inlet through this honeycomb duct, then gets into the drain pipe through the feed liquor pipe and reaches the liquid outlet.
Other technical features are referred to in the previous embodiments and are not described herein.
It is within the scope of the disclosure that the various components may be selectively and operatively combined in any number. In addition, terms like "comprising," "including," and "having" should be interpreted as inclusive or open-ended, rather than exclusive or closed-ended, by default, unless explicitly defined to the contrary. All technical, scientific, or other terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. Common terms found in dictionaries should not be interpreted too ideally or too realistically in the context of related art documents unless the present disclosure expressly limits them to that. Any changes and modifications of the present invention based on the above disclosure will be within the scope of the appended claims.
Claims (10)
1. The utility model provides an adjustable velocity of flow infusion pump, includes stock solution portion and velocity of flow regulator through the connecting tube intercommunication, and the output of velocity of flow regulator is provided with liquid outlet, its characterized in that:
the flow rate regulator comprises a valve core and a shell, wherein the valve core is sleeved inside the shell and can rotate relative to the shell; the liquid medicine flow regulating valve is characterized in that a liquid inlet pipeline and a liquid outlet pipeline are arranged on the shell, a plurality of flow guide pipes with different flow conducting rates are arranged in the valve core, the flow guide pipes are equidistantly arranged on the vertical surface of the valve core in a layered mode, each layer of flow guide pipe and other layers of flow guide pipes are arranged in an angled mode, and one flow guide pipe in the valve core is regulated through rotating the valve core and is communicated with the liquid inlet pipeline and the liquid outlet pipeline on the shell to provide corresponding liquid medicine flow.
2. The adjustable flow rate infusion pump of claim 1, wherein: the pipe diameters of the guide pipes in all layers in the valve core are the same, and the conduction flow of the guide pipe is adjusted by installing flow limiting pipes with the same outer diameter and inner diameter but different lengths in the pipeline of the guide pipe.
3. The adjustable flow rate infusion pump of claim 1 or 2, wherein: the valve core is internally provided with 4 guide pipes, the 4 guide pipes are arranged on the vertical surface of the valve core at equal intervals in 4 layers, and the 4 guide pipes are uniformly distributed at an angle of 45 degrees on the horizontal surface of the valve core; and one guide pipe in the valve core can be communicated with the liquid inlet pipeline and the liquid outlet pipeline when the valve core rotates by 45 degrees.
4. The adjustable flow rate infusion pump of claim 3, wherein: the 4 honeycomb ducts pass through the center line of the valve core and penetrate through the valve core, and the conduction flow of the honeycomb ducts is 2ml/h, 4ml/h, 6ml/h and 8ml/h from small to large.
5. The adjustable flow rate infusion pump of claim 1 or 2, wherein: the liquid inlet pipeline on the shell comprises a liquid inlet pipe and a liquid medicine inflow groove, and an outlet of the liquid inlet pipe is communicated with the liquid medicine inflow groove; the liquid outlet pipeline comprises a liquid outlet pipe and a liquid medicine outflow groove, an inlet of the liquid outlet pipe is communicated with the liquid medicine outflow groove, and an outlet of the liquid outlet pipe is a liquid outlet; the rotary valve core enables one guide pipe to correspond to the liquid medicine inlet groove and the liquid medicine outlet groove, so that liquid medicine can enter the liquid outlet pipe from the liquid inlet pipe through the guide pipe to reach the liquid outlet.
6. The adjustable flow rate infusion pump of claim 5, wherein: the liquid inlet pipe and the liquid outlet pipe are arranged at an angle of 180 degrees, the liquid medicine inlet groove and the liquid medicine outlet groove are vertically arranged on the shell and are the same in height, and the height of each layer of flow guide pipe capable of covering the valve core enables the two ends of each layer of flow guide pipe to correspond to the liquid medicine inlet groove and the liquid medicine outlet groove respectively.
7. The adjustable flow rate infusion pump of claim 6, wherein: the shell is provided with a liquid medicine inlet groove and a liquid medicine outlet groove, and the surface of the valve core is provided with a rotary handle and position indication marks and/or flow indication marks of each flow guide pipe.
8. The adjustable flow rate infusion pump of claim 1, wherein: the liquid outlet is provided with a liquid outlet joint, and the connecting pipeline is provided with a medicine adding port for adding medicine.
9. The adjustable flow rate infusion pump of claim 1, wherein: the liquid storage part comprises a pump shell and a silica gel liquid storage bag arranged in a cavity formed by the pump shell.
10. A flow rate regulator for an infusion pump, characterized by: the valve core is sleeved inside the shell and can rotate relative to the shell; the liquid medicine flow regulating valve is characterized in that a liquid inlet pipeline and a liquid outlet pipeline are arranged on the shell, a plurality of flow guide pipes with different flow conducting rates are arranged in the valve core, the flow guide pipes are equidistantly arranged on the vertical surface of the valve core in a layered mode, each layer of flow guide pipe and other layers of flow guide pipes are arranged in an angled mode, and one flow guide pipe in the valve core is regulated through rotating the valve core and is communicated with the liquid inlet pipeline and the liquid outlet pipeline on the shell to provide corresponding liquid medicine flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103279.5A CN110898286B (en) | 2019-11-13 | 2019-11-13 | Infusion pump capable of adjusting flow rate and flow rate regulator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911103279.5A CN110898286B (en) | 2019-11-13 | 2019-11-13 | Infusion pump capable of adjusting flow rate and flow rate regulator thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110898286A true CN110898286A (en) | 2020-03-24 |
| CN110898286B CN110898286B (en) | 2024-08-13 |
Family
ID=69817156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911103279.5A Active CN110898286B (en) | 2019-11-13 | 2019-11-13 | Infusion pump capable of adjusting flow rate and flow rate regulator thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110898286B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6569128B1 (en) * | 1999-09-22 | 2003-05-27 | Advanced Infusion Corporation | Catheter with adjustable flow restrictor |
| CN2841018Y (en) * | 2005-07-12 | 2006-11-29 | 新乡市驼人医疗器械有限公司 | Disposable infusion pump flow-speed switch |
| US20080017260A1 (en) * | 2006-07-20 | 2008-01-24 | Seik Oh | Multirate tubing flow restrictor |
| KR20100035350A (en) * | 2008-09-26 | 2010-04-05 | 에이스메디칼 주식회사 | Equipment system to supply liquid medicine with a supply amount controller of the fixed type and a supply amount controller of the freed type |
| CN201701567U (en) * | 2010-03-13 | 2011-01-12 | 闫思俊 | Infusion apparatus flow velocity control valve |
| CN102300541A (en) * | 2009-02-02 | 2011-12-28 | 株式会社玗荣医疗器 | Drug solution dose controller |
| CN203598299U (en) * | 2013-12-04 | 2014-05-21 | 胡祖荣 | Medicine infusion device |
| CN204158805U (en) * | 2014-11-27 | 2015-02-18 | 扬州市明星医塑器材有限公司 | A kind of rotary Flow-rate adjustment infusion pump |
| CN105521538A (en) * | 2014-10-20 | 2016-04-27 | 贝克顿·迪金森控股私人有限公司 | Vein flow regulator |
| CN211584637U (en) * | 2019-11-13 | 2020-09-29 | 袁红斌 | Adjustable flow rate infusion pump and flow rate regulator of infusion pump |
-
2019
- 2019-11-13 CN CN201911103279.5A patent/CN110898286B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6569128B1 (en) * | 1999-09-22 | 2003-05-27 | Advanced Infusion Corporation | Catheter with adjustable flow restrictor |
| CN2841018Y (en) * | 2005-07-12 | 2006-11-29 | 新乡市驼人医疗器械有限公司 | Disposable infusion pump flow-speed switch |
| US20080017260A1 (en) * | 2006-07-20 | 2008-01-24 | Seik Oh | Multirate tubing flow restrictor |
| KR20100035350A (en) * | 2008-09-26 | 2010-04-05 | 에이스메디칼 주식회사 | Equipment system to supply liquid medicine with a supply amount controller of the fixed type and a supply amount controller of the freed type |
| CN102300541A (en) * | 2009-02-02 | 2011-12-28 | 株式会社玗荣医疗器 | Drug solution dose controller |
| CN201701567U (en) * | 2010-03-13 | 2011-01-12 | 闫思俊 | Infusion apparatus flow velocity control valve |
| CN203598299U (en) * | 2013-12-04 | 2014-05-21 | 胡祖荣 | Medicine infusion device |
| CN105521538A (en) * | 2014-10-20 | 2016-04-27 | 贝克顿·迪金森控股私人有限公司 | Vein flow regulator |
| CN204158805U (en) * | 2014-11-27 | 2015-02-18 | 扬州市明星医塑器材有限公司 | A kind of rotary Flow-rate adjustment infusion pump |
| CN211584637U (en) * | 2019-11-13 | 2020-09-29 | 袁红斌 | Adjustable flow rate infusion pump and flow rate regulator of infusion pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110898286B (en) | 2024-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211584637U (en) | Adjustable flow rate infusion pump and flow rate regulator of infusion pump | |
| CN105561442B (en) | Infusion flow speed regulator | |
| JP2018520826A (en) | selector | |
| CN204601274U (en) | Flow rate of liquid adjusting device | |
| CN204158805U (en) | A kind of rotary Flow-rate adjustment infusion pump | |
| CN106762860A (en) | A kind of fluid flow built-in stabilizers based on jet flow cavitation | |
| CN110898286B (en) | Infusion pump capable of adjusting flow rate and flow rate regulator thereof | |
| CN201618217U (en) | Multichannel infusion set | |
| CN102089022A (en) | Medical apparatus for controlling flow | |
| JP2003513759A (en) | Pressure-responsive flow regulator and drug delivery device using the same | |
| CN101905046B (en) | Micro-dose flow regulator | |
| CN211561415U (en) | Exhaust system of variable-speed infusion pump, flow controller and infusion pump | |
| CN105641779B (en) | Infusion flow speed regulator | |
| CN206027670U (en) | Device of multichannel among control microchannel reactor reaction sequence | |
| CN206577203U (en) | A kind of flow regulator | |
| CN204358162U (en) | Thermostatic valve hot and cold water flow control device | |
| CN106798956A (en) | A kind of multithread quantity regulating device of infusion pump | |
| CN111001063A (en) | Exhaust system of variable-speed infusion pump and application | |
| CN204840513U (en) | Disposable infusion pump uses many flow regulator | |
| CN207203157U (en) | Murphy type burette | |
| CN206315340U (en) | A kind of flow regulator | |
| CN219022983U (en) | Three-way valve capable of adjusting flow velocity | |
| CN210675239U (en) | Constant volume bottle for experiments | |
| CN203677659U (en) | Medical dial type precision flow regulator | |
| JP6722591B2 (en) | Wearable flow control device for delivering fluid to a patient |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230517 Address after: 6th Floor, Emergency Department, Changzheng Hospital, No. 415, Fengyang Road, Huangpu District, Shanghai, 200003 Applicant after: SHANGHAI CHANGZHENG Hospital Address before: 415 Department of Anesthesiology, Changzheng Hospital, Fengyang Road, Shanghai, Huangpu District 200003, China Applicant before: Yuan Hongbin Applicant before: Zou Zui |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |