WO2015139573A1 - 输液用双刻度精准定速定量调节器 - Google Patents

输液用双刻度精准定速定量调节器 Download PDF

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Publication number
WO2015139573A1
WO2015139573A1 PCT/CN2015/074056 CN2015074056W WO2015139573A1 WO 2015139573 A1 WO2015139573 A1 WO 2015139573A1 CN 2015074056 W CN2015074056 W CN 2015074056W WO 2015139573 A1 WO2015139573 A1 WO 2015139573A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow rate
fixed base
regulator
rate adjusting
adjusting plate
Prior art date
Application number
PCT/CN2015/074056
Other languages
English (en)
French (fr)
Inventor
胡绍勤
汤丽芬
Original Assignee
胡绍勤
汤丽芬
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201410441176.0A external-priority patent/CN104258488B/zh
Priority claimed from CN201410732464.1A external-priority patent/CN104383623A/zh
Application filed by 胡绍勤, 汤丽芬 filed Critical 胡绍勤
Priority to TW104122335A priority Critical patent/TW201609212A/zh
Publication of WO2015139573A1 publication Critical patent/WO2015139573A1/zh

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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
    • A61M5/141—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor with capillaries for restricting fluid flow
    • 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
    • A61M5/16804—Flow controllers
    • 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
    • A61M5/16804—Flow controllers
    • A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
    • 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
    • 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
    • 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
    • A61M2205/3337—Controlling, regulating pressure or flow by means of a valve by-passing a pump
    • 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
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/586—Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users

Definitions

  • the present invention relates to a medical device, and more particularly to a flow rate regulator for infusion.
  • Flow rate control during infusion is very important, and a reasonable flow rate helps to improve the efficacy and reduce the risk of infusion.
  • the doctor's order is usually delivered at a drip rate. If the condition is heavier or special needs, the flow rate will be released.
  • the flow rate of the special medication is accurate to "drop".
  • the infusion rate is too fast, too much liquid per unit time or excessive drug dose will induce heart failure and blood pressure drop. Waiting for the patient to get worse.
  • the infusion rate is too slow, the amount of fluid entering the body per unit time or the dose of the drug is too small, which may result in failure to correct shock and high blood pressure.
  • the infusion speed and infusion volume are not accurate, and the treatment is delayed, which affects the recovery of the patient's condition and aggravates the patient's economic burden. When the delay is delayed, the patient's condition is aggravated or even died.
  • the existing flow setting type infusion sets adopt the method of steplessly adjusting the cross-sectional size of the infusion channel, and only a plurality of infusion flow rate marks can be directly estimated, and the numerical value span between the identification marks can be used even if corresponding to a certain Speed adjustment on a scale, the actual flow channel and the scale mark will still have a certain deviation of the deviation resulting in the actual flow velocity deviation.
  • the non-infusion flow identification scale it is estimated by the operator, but the clinical estimates tend to be biased, resulting in a larger deviation of the actual flow rate.
  • the basic principles of the existing infusion flow rate regulators are generally the same, and the flow rate is generally adjusted by squeezing the infusion catheter to deform it and changing the cross-sectional area of the catheter. This adjustment is simple and can achieve stepless adjustment of the flow rate, but it is difficult to accurately measure the flow rate, and multiple adjustments are required to achieve the desired value.
  • the regulation of the flow is more dependent on the operator's experience than the flow regulator itself. It cannot be applied when precise control of flow rate regulation is required.
  • Infusion pumps are commonly used when precise control of infusion flow rate is required, but infusion pumps are expensive, unfavorable to promote and complicated to operate, not intuitive and simple, especially when the patient's condition is rapidly changing, and it takes time and effort to install and debug.
  • the utility model relates to a double-scale precise constant speed quantitative regulator for infusion, wherein the regulator comprises a fixed base, and a movable flow rate adjusting plate is fixed above the fixed base, and a liquid inlet and a liquid outlet are arranged below the fixed base;
  • a sealing gasket is arranged between the fixed base and the flow rate adjusting plate, and the sealing hole is provided with through holes corresponding to the liquid inlet and the liquid outlet respectively;
  • the flow rate adjusting plate is provided with liquid flow channels of different apertures, the liquid inlet and the liquid outlet The liquid flow channel is connected; or the fixed base is provided with a liquid inlet main tank and a liquid discharge main tank respectively communicating with the liquid inlet and the liquid outlet, and at least one main tank is provided with different aperture control concaves connected thereto a groove, a speed adjusting groove and a connecting passage provided on the sealing gasket, or a connecting passage formed by the sealing gasket and the flow velocity adjusting plate;
  • a flow rate indicator is provided on the regulator, and the flow rate indicator is composed of a dial and a corresponding flow rate indicator.
  • the utility model relates to a double-scale precise constant-speed quantitative regulator for infusion, wherein the regulator comprises a fixed base, and a movable flow rate adjusting plate is fixed above the fixed base, and the fixed base and the flow rate adjusting plate respectively have a liquid outlet and a liquid inlet; the fixed base a sealing gasket is arranged between the flow rate adjusting plate and the through hole for connecting the liquid outlet and the liquid inlet;
  • At least one of the fixed base or the flow rate adjusting plate is provided with a flow rate adjusting passage, and the flow rate adjusting passage is composed of a main groove and a different aperture speed adjusting groove communicating with the main groove, and the main groove and the liquid outlet of the fixed base or the flow rate adjusting plate
  • the inlet port is connected, and the other end of the speed regulating groove is in communication with the through hole of the gasket;
  • a flow rate indicator is provided on the regulator, and the flow rate indicator is composed of a dial and a corresponding flow rate indicator.
  • the speed regulating groove is radially distributed on one side of the main groove.
  • the liquid flow channels are grooves which are spaced apart from each other, or grooves which continuously change in cross-sectional area.
  • the fixed base extends outwardly with a positioning chassis
  • the flow rate adjusting plate extends outwardly with a positioning movable plate
  • a positioning block is disposed between the positioning chassis and the positioning movable plate.
  • the flow rate adjusting plate is entirely disk-shaped, and the flow rate adjusting plate is fixed to the rotating shaft by its center.
  • the dial is fixed on the fixed base, the corresponding flow rate indicator moves synchronously with the flow rate adjusting plate; or the flow rate indicator is fixed on the fixed base, and the dial is fixed on the flow rate adjusting plate or the rotating shaft.
  • the dial is provided with a double scale.
  • the scales on the dial are offset from each other.
  • the fixed base extends outwardly with a lower support plate, and the lower support plate houses a pipe connecting the liquid outlet.
  • the fixed base extends outwardly with an upper support plate, and the upper support plate houses a pipe communicating with the liquid inlet.
  • a cut-off card position is provided between the fixed base and the flow rate adjusting plate.
  • the inner wall of the fixed base is provided with a snap structure for fixing the flow rate adjusting plate.
  • the fixed base or the flow rate adjusting plate is provided with a gasket positioning column
  • the sealing pad is provided with a positioning hole corresponding to the sealing rod positioning column.
  • the flow rate adjusting plate extends upward with an upper retaining edge surrounding the dial.
  • the fixed base extends outwardly with an upper support plate and a lower support plate, and the upper support plate and the lower support plate respectively receive a pipe connecting the liquid inlet and the liquid outlet, the positioning disk is oriented A lower retaining edge surrounding the positioning chassis extends downwardly, and a fixed base between the upper support plate and the lower support plate is provided with a recess for receiving the lower retaining edge.
  • At least one of the flow rate adjusting plate and the fixed base is provided with at least one through hole for sterilization.
  • the flow rate indicator is provided with a flow rate increase and decrease indicator.
  • the dial is made of a transparent material.
  • the device of the invention can control the infusion flow rate and the flow rate accurately, quickly and stably by changing the size of the liquid channel, and simultaneously and intuitively read the infusion flow rate and the infusion flow rate, which is convenient for one-hand operation, and conforms to various clinical use habits and various kinds.
  • the device of the invention can be applied to both conventional infusion and blood transfusion and intravenous nutrition.
  • the device of the invention has simple structure and high reliability. Discontinuous constant speed regulation of flow can be achieved when the flow channel is provided with a spacer groove or a flow rate adjustment channel using a spacer speed control groove.
  • the liquid flow channel adopts the annular groove or the flow velocity adjustment channel is set by the annular speed regulating groove, the stepless constant speed adjustment can be realized, and the flow rate can be adjusted more easily.
  • the device of the invention can be conveniently sterilized and achieve a satisfactory sterilization effect, so that the product can be well applied to the medical field.
  • Figure 1 is a schematic view showing the structure of a main body of the apparatus of the present invention
  • Figure 2 is a plan view of a fixed base of the device of the present invention.
  • Figure 3 is a top plan view of the apparatus of the present invention.
  • Figure 4 is a schematic view showing another main structure of the apparatus of the present invention.
  • Figure 5 is a schematic view showing another main structure of the apparatus of the present invention.
  • Figure 6 is a schematic view showing another main structure of the apparatus of the present invention.
  • Figure 7 is a plan view of another fixed base of the device of the present invention.
  • Figure 8 is a top plan view showing the lower surface of another flow rate adjusting plate of the apparatus of the present invention.
  • Figure 9 is a plan view of another fixed base of the device of the present invention.
  • Figure 10 is another top plan view of the apparatus of the present invention.
  • Figure 11 is a schematic view showing the structure of another flow rate adjusting passage.
  • a double-scale precise constant speed quantitative regulator for infusion is provided with a movable flow rate adjusting plate 2 fixed above the fixed base 1, including a fixed base 1, and a liquid inlet 11 and a lower portion are arranged below the fixed base 1.
  • a sealing pad 4 is disposed between the fixed base 1 and the flow rate adjusting plate 2, and the sealing pad 4 is provided with through holes corresponding to the liquid inlet 11 and the liquid outlet 12 respectively;
  • the flow rate adjusting plate 2 is provided with liquid flow channels 21 of different pore sizes, and the liquid inlet port 11 and the liquid outlet port 12 communicate with the liquid flow channel 21 through the through holes of the gasket 4;
  • a flow rate indicator 3 is provided on the regulator, and the flow rate indicator consists of a dial 31 and a corresponding flow rate indicator 32.
  • a double-scale precision fixed-speed quantitative regulator for infusion includes a fixed base 1 with a movable flow rate adjustment plate 2 fixed above the fixed base 1, and a liquid inlet below the fixed base 1 Port 11 and liquid outlet 12;
  • the fixed base 1 is provided with a liquid inlet main groove and a liquid discharge main groove respectively communicating with the liquid inlet 11 and the liquid outlet 12, and at least one main groove is provided with different aperture speed regulating grooves 13 communicating with the same.
  • the speed groove 13 is connected with a connecting passage provided on the gasket, or a connecting passage formed by the gasket and the flow rate adjusting plate;
  • a flow rate indicator 3 is provided on the regulator, and the flow rate indicator consists of a dial 31 and a corresponding flow rate indicator 32.
  • the liquid medicine enters the liquid inlet main groove through the liquid inlet port, and then the speed is adjusted by the speed regulating groove, and then the connection passage provided on the gasket, or the gasket and the flow rate
  • the connecting passage formed by the adjusting plate enters the liquid outlet to realize the flow rate adjustment; similarly, when the regulating groove is connected with the liquid outlet, the chemical liquid enters the liquid inlet main groove through the liquid inlet, and then passes through the sealing gasket.
  • the connecting passage, or the connecting passage formed by the gasket and the flow rate adjusting plate enters the speed adjusting groove, and then enters the main liquid discharging tank and flows out from the liquid outlet.
  • the connecting passage on the gasket is preferably a simple groove or a hole; or two through holes are provided in the gasket, and corresponding grooves or holes are formed in the flow rate adjusting plate to form a final communication inlet and outlet.
  • the flow channel of the liquid port is preferably a simple groove or a hole; or two through holes are provided in the gasket, and corresponding grooves or holes are formed in the flow rate adjusting plate to form a final communication inlet and outlet.
  • a double-scale precision fixed-speed quantitative regulator for infusion includes a fixed base 1 with a movable flow rate adjustment plate 2 fixed above the fixed base 1, a fixed base 1 and a flow rate adjustment plate 2 a liquid outlet 12 and a liquid inlet 11 are respectively disposed; a gasket 4 is disposed between the fixed base 1 and the flow rate adjusting plate 2, and the gasket 4 is provided with a through hole for communicating the liquid outlet 12 and the liquid inlet 11;
  • At least one of the fixed base 1 or the flow rate adjusting plate 2 is provided with a flow rate adjusting passage, and the flow rate adjusting passage is composed of a main groove and a different aperture speed adjusting groove communicating with the main groove, and the liquid outlet or the flow rate adjustment of the main groove and the fixed base
  • the liquid inlet of the plate is connected, and the other end of the speed regulating groove is connected with the through hole of the gasket;
  • a flow rate indicator 3 is provided on the regulator, and the flow rate indicator consists of a dial 31 and a corresponding flow rate indicator 32.
  • the liquid When the flow rate adjusting passage is disposed on the flow rate adjusting plate, the liquid enters the main groove through the liquid inlet, and then enters the liquid outlet through the through hole of the speed regulating groove and the sealing block; similarly, when the flow rate adjusting channel is set on the fixed base The liquid enters the through hole on the sealing pad and into the speed regulating groove through the liquid inlet, then enters the main groove, and finally flows out through the liquid outlet.
  • the flow rate adjusting passage formed by the main groove and the speed regulating groove may also be an annular groove C1, and the cross-sectional area of the groove is successively smaller, and is connected to the liquid inlet or the liquid outlet.
  • the end C has the largest cross-sectional area.
  • At least one of the flow rate adjusting plate 2 and the fixed base 1 is provided with at least one through hole 22 for sterilization, and at least two through holes for sterilization are preferably used for inputting the sterilization liquid. (gas), the other is used to export into the sterilizing solution (gas). After the assembly is completed, the through hole for sterilization is closed.
  • the liquid flow channels are spaced-apart grooves or at least one groove whose cross-sectional area continuously changes.
  • the grooves have different apertures (cross-sectional areas) when the flow channels are spaced-apart grooves or the flow rate adjustment channels are spaced-available.
  • the grooves are radially distributed and the different grooves have the same length.
  • the minimum cross-sectional area of adjacent grooves increases sequentially in one direction, such as from left to right, so that when the flow rate is adjusted, the flow rate can be sequentially increased or decreased, and the flow rate can be conveniently adjusted.
  • These spaced grooves can be used as a liquid flow channel to adjust the flow rate alone, or a plurality of grooves can be combined to form a liquid flow channel, which can more accurately adjust the area of the liquid flow channel and more accurately adjust the flow rate. Adjustment.
  • the cross section of the groove can be rectangular, semi-circular, tubular or other shape.
  • the groove is preferably a circular arc shape.
  • the flow channel or the annular velocity regulating groove may also be composed of a plurality of grooves which are concentric with each other.
  • the cross-sectional area of the flow passage is the total cross-sectional area of the plurality of grooves.
  • the cross-sectional area is preferably continuously increased or decreased in one direction, so that the flow rate is continuously increased or decreased correspondingly.
  • the cross section of the groove can be rectangular, semi-circular or other semi-closed shape.
  • the fixed base 1 extends outwardly with a positioning chassis 13
  • the flow rate adjusting plate 2 extends outwardly with a positioning movable plate 23
  • a positioning block 24 is disposed between the positioning chassis 13 and the positioning movable plate 23 .
  • the positioning block may be a matching positioning protrusion and a positioning groove.
  • the positioning block is a hemispherical protrusion and a hemispherical depression that cooperate with each other.
  • the setting of the positioning block can indicate whether the speed regulation is in place, convenient for setting the flow rate, avoiding mistakes during adjustment, and affecting the progress of the infusion.
  • the positioning block can also be set to ensure that the flow rate drifts without changing easily after setting the flow rate.
  • the flow rate adjusting plate is entirely disk-shaped, and the flow rate adjusting plate is fixed to the rotating shaft by its center.
  • the flow rate adjusting plate rotates with the rotating shaft as an axis, and rotates relative to the fixed base.
  • the dial is fixed on the fixed base, the corresponding flow rate indicator moves synchronously with the flow rate adjusting plate; or the flow rate indicator is fixed on the fixed base, and the dial is fixed on the flow rate adjusting plate or the rotating shaft.
  • the scale on the dial is double scale.
  • the units of the two tick marks are different.
  • the first tick mark 34 is the flow unit ml/h
  • the second tick mark 35 on the opposite side is the flow rate unit. Min" it is convenient for the operator to quickly determine the flow rate according to the doctor's advice, and reduce the time required for manual conversion; or the units of the two tick marks are the same, but are staggered and distributed, so that the accuracy of the flow rate adjustment can be further improved by matching the corresponding flow rate adjustment plate.
  • the dial is a sector or a ring
  • the scale main line 36 is one or more complete or incomplete circular or elliptical shapes
  • the scale marking extension lines of the first scale 34 and the second scale 35 pass through the center of the circle.
  • the dial is provided with a flow increase and decrease indicator, such as a flow or flow rate increase side setting to increase the mark, correspondingly, the other side is set to reduce the mark, as shown in Figure 3. Shown.
  • the flow rate indicator is provided with a flow rate increase and decrease indicator.
  • the flow rate increase and decrease indicator can be set on the dial or on the flow rate indicator.
  • the dial is provided with a scale panel, the dial is transparent, and the liquid regulating valve is provided with a scale indicating extension seat and a flow rate flow scale indication, which cooperates with the scale mark on the scale panel of the dial to indicate the infusion of the infusion set. Flow rate and infusion flow status.
  • At least two scale lines are arranged on the scale panel, and the scales of the scale lines are offset from each other; the scale units of the scale lines are the same or different; or the two scale lines share a scale main line, and the scales of the two scale lines are respectively located on the scale
  • the two sides of the main line are staggered and distributed; more preferably, the digital signs are located on different sides of the main line of the scale, and at least two of the digital signs are in different directions and arranged in a wrong position.
  • the dial is a fan or a ring
  • the scale is provided with two scale lines, such as a scale line being the first scale 34, and the flow unit is ml/h, at the first scale 34.
  • the numerical identification values of the first scale 34 and the second scale 35 are in a conversion relationship with each other by the drop coefficient.
  • the fixed base 1 extends outwardly with an upper support plate 15 and a lower support plate 16, and the upper support plate 15 and the lower support plate 16 respectively accommodate pipes communicating with the liquid inlet 11 and the liquid outlet 12 .
  • the support plate When the support plate is adjusted, it can provide better support and facilitate operation. At the same time, it can make the liquid flow more smoothly and smoothly, reduce the influence of human operation on the external infusion tube, and avoid the problems caused by the bending of the infusion tube. .
  • a cut-off card position is provided between the fixed base and the flow rate adjusting plate.
  • the setting of the cut-off card position can well limit the maximum displacement of the flow rate adjusting plate, which is convenient for handling and reduces misoperation.
  • the inner wall of the fixed base 1 is provided with a snap structure 5 for fixing the flow rate adjusting plate 2.
  • the arrangement of the snap structure makes it possible to assemble the fixed base and the flow rate adjusting plate with great ease, and to avoid secondary pollution caused by inconvenient assembly of the assembly after sterilization.
  • the existing sterilization and sterilization components can be fixed to the buckles of the previous one, so that the cavity formed inside the assembled semi-finished products can be connected with the liquid inlets on the fixed base.
  • the liquid ports are connected to each other for better sterilization. After the sterilization is completed, the finished product can be obtained by simply pressing, which helps to reduce the production difficulty and obtain a more thorough sterilization product.
  • the fixed base 1 or the flow rate adjusting plate 2 is provided with a gasket positioning column 14 , and the sealing pad is provided with a positioning hole corresponding to the sealing rod positioning column.
  • the positioning post is not on the same component as the groove or the liquid flow channel with the speed regulation function.
  • the positioning column is disposed on the flow rate adjustment plate; otherwise, if the speed adjustment groove is located at the flow rate When the plate is adjusted, the positioning post is placed on the fixed base.
  • the flow rate adjusting plate 2 extends upward with an upper rim 25 surrounding the dial 31.
  • the fixed base extends outwardly with an upper support plate 15 and a lower support plate 16, and the upper support plate 15 and the lower support plate 16 respectively accommodate pipes communicating with the liquid inlet and the liquid outlet, and are positioned
  • the disc 23 extends downwardly with a lower bead 26 surrounding the positioning chassis 13, and the fixed base 2 between the upper support plate 15 and the lower support plate 16 is provided with a recess for receiving the lower bead 26.
  • the edge of the retaining edge prevents excessive friction during operation and smoother flow adjustment.
  • the dial is made of a transparent material.
  • the flow rate indicator can be placed under the dial to avoid friction between the flow indicator and the dial, causing unnecessary resistance.
  • the double-precision precise fixed-speed quantitative adjuster for infusion comprises a fixed base, a liquid inlet and a liquid outlet under the fixed base, a fixed shaft extending upward in the middle of the fixed base, and a side wall extending on the edge, the fixed shaft and the side wall
  • the flow rate adjusting plate is provided with liquid flow channels of different pore sizes, the liquid flow channels are spaced apart, the cross-sectional area of the liquid flow channel is sequentially increased toward one side, the liquid inlet port and the liquid outlet port are connected through the liquid flow channel;
  • the flow rate adjusting plate is provided Two through holes for sterilization, the through holes are symmetrically distributed on the flow rate adjusting plate;
  • the upper snaps are used to initially fix the flow rate adjusting plate before sterilization, so that a large gap is formed between the flow rate adjusting plate and the fixed base
  • the cavity is convenient for the sterilization gas to fully contact various parts, the sterilization is more convenient and thorough, and the lower buckle is used for further pressing after the sterilization is completed, so that the flow rate adjusting plate is finally fixed on the fixed base;
  • a sealing pad and a cut-off card position are arranged between the fixed base and the flow rate adjusting plate, and the through hole corresponding to the liquid inlet port and the liquid outlet is respectively provided on the sealing pad;
  • the fixing base is provided with a plurality of sealing pad fixing columns, and the sealing pad corresponds to Corresponding through holes are provided;
  • the cut-off card position is a joint protrusion on the fixed base and the edge of the flow rate adjusting plate, wherein the fixed base is provided with two protrusions, and the flow rate adjusting plate is provided with a protrusion, and the flow rate adjusting plate is provided The range of movement is limited between the two projections of the fixed base;
  • the fixed base extends outwardly with a positioning chassis and a support plate.
  • the support plate includes an upper support plate and a lower support.
  • the utility model is convenient for holding the hand, and the upper support plate and the lower support contain a pipe connected with the liquid inlet and the liquid outlet. ;
  • the flow rate adjusting plate has a positioning moving plate extending outwardly, and a positioning block is arranged between the positioning chassis and the positioning moving plate, the positioning block is a matching positioning protrusion and a positioning groove; the edge of the positioning moving plate extends upward and downward respectively Upper and lower retaining edges;
  • the dial forming one of the flow velocity marks is fixed on a fixed shaft fixed on the fixed base.
  • the dial is made of a transparent material, which is fan-shaped or annular, and the main line of the scale is one or more complete or incomplete circular or elliptical shapes.
  • the scale marks of the first scale and the second scale pass through the center of the circle, and the scales of the two scale lines are respectively located on both sides of the main line of the scale, and are evenly distributed with each other; the flow rate increase and decrease indicator, flow rate or flow rate is provided on the dial
  • the increased side is provided with an increased mark, and the other side is set to reduce the mark, so that the direction of adjustment is more clearly indicated when used, the surface of which is slightly lower than the upper edge; the flow rate indicator is located on the upper edge.
  • the upper support plate and the lower support are provided with grooves for accommodating the lower edge, and the plane on which the chassis is positioned is slightly higher than the plane at which the lower edge of the lower edge is located, avoiding Affects the rotation of the flow rate adjustment plate.
  • the structure of the regulator is substantially the same as that of Embodiment 1, except that:
  • the flow rate adjusting plate 2 is not provided with a liquid flow channel, and is provided with a positioning post 14 for fixing the sealing pad 4.
  • the sealing pad 4 is provided with a through hole corresponding to the positioning post 14; the fixed base 1 is respectively provided with the liquid inlet port 11
  • the liquid inlet main groove 211 and the liquid discharge main groove 213 communicating with the liquid outlet 12, wherein one side of the liquid inlet main groove 211 radially extends and has different speed control grooves 212, the speed adjusting groove 212 and the gasket
  • One end of the groove 41 on the fourth side communicates, and the other end of the groove 41 of the gasket 4 is in communication with the liquid discharge main groove 213.
  • the structure of the regulator is basically the same as that of Embodiment 1, except that the implementation of the flow rate adjustment is different:
  • the flow rate adjusting plate 2 is provided with a liquid inlet port 11, the fixed base 1 is provided with a liquid outlet port 12, and the flow rate adjusting plate 2 is provided with a flow rate adjusting channel, and the flow rate adjusting channel is composed of a main groove 211 and different aperture speed regulating grooves communicating with the main groove 212, the main slot 211 is in communication with the liquid inlet port 11, the other end of the speed regulating groove 212 is in communication with the through hole in the gasket 4, and the other end of the through hole in the gasket 4 is connected to the liquid outlet 12 of the fixed base 1.
  • the gasket 4 is fixed to the fixed base 1 by a positioning post 14 provided on the fixed bottom 1.
  • the flow rate adjustment channel can also be arranged on a fixed base, and the connection relationship of each channel can be similarly changed.

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Abstract

输液用双刻度精准定速定量调节器，包括固定底座(1)，固定底座(1)下方设有进液口(11)和出液口(12)，固定底座(1)上方固定有可动的流速调节板(2)，固定底座(1)和流速调节板(2)之间设有密封垫(4)，密封垫(4)上设有对应于进液口(11)和出液口(12)的通孔；流速调节板(2)设有不同孔径的液流通道(21)，进液口(11)和出液口(12)通过液流通道(21)连通；调节器上设有流速标识(3)，流速标识(3)由刻度盘(31)和对应的流速指示器(32)组成。该调节器通过改变液体通道(21)的大小，实现对输液流速、流量的控制精确、快速、稳定，同时直观方便的阅读输液流速和输液流量，方便单手操作，符合临床多种使用习惯、多种应用环境，保证输液安全。特别在普通病人病情突然恶化时，快速满足输液转变为精准控制的紧急需求，赢取抢救时机。

Description

输液用双刻度精准定速定量调节器
技术领域
本发明涉及一种医疗器械，特别涉及一种输液用的流速调节器。
背景技术
输液时的流速控制是非常重要的，合理的流速有助于提高疗效，减少输液时的风险。临床中，医嘱在一般情况下有以滴速下达，病情较重或特殊需要时会以流量下达，特殊用药要求流速精准到“滴”。特别的，对心功能不全、儿童、新生儿、老年病人、危重病人进行输液时，如果输液速度过快，单位时间进入体内的液体过多或药物剂量过大，会诱发心力衰竭、血压下降过快等导致病人病情加重。如果输液速度过慢，单位时间进入体内的液体不足或药物剂量过少，会导致无法纠正休克、血压居高不下等。输液速度和输液量不精准，轻则耽误治疗，影响病人病情恢复和加重病人经济负担；重则延误抢救时机，导致病人病情加重甚至死亡。
临床上也有使用流量设定式输液器，但操作者往往无法直接按滴速医嘱处理，需花费一定时间进行换算，延误治疗。现有的流量设定式输液器均采用无级调节输液通道横截面大小的方法，仅设有若干个输液流量刻度标识可直接简单估读，可使用标识刻度间数值跨度较大，即使对应某一刻度进行调速，实际液流通道与刻度标识仍会存在一定的对位偏差导致实际流速偏差 ，当使用非输液流量标识刻度时需由操作者进行估算，但临床上估算值往往偏差较大，导致实际流速偏差更大。
现有的输液流速调节器的基本原理大致相同，普遍通过挤压输液导管，使其发生形变，改变导管的横截面积来调节流速。这种调节方式简便，可以实现流速的无级调节，但是存在难以精确度量流速，需要进行多次调节才可以达到预期值。流量的调节更多依赖于操作者的经验，而非流速调节器本身。在需要精确控制流速调控的时候，无法应用。
在需要精确控制输液流速时，普遍使用输液泵，但是输液泵价格高昂，不利推广且操作过于复杂，不够直观简便，尤其是在普通病人病情急变时，需费时安装调试方可投入应用。
发明内容
本发明的目的在于提供一种可以精准、直观的输液流速调节器。
本发明所采取的技术方案是：
一种输液用双刻度精准定速定量调节器，调节器包括固定底座，固定底座上方固定有可动的流速调节板，固定底座下方设有进液口和出液口；
固定底座和流速调节板之间设有密封垫，密封垫上设有分别对应于进液口和出液口的通孔；流速调节板设有不同孔径的液流通道，进液口和出液口通过液流通道连通；或固定底座上设有分别与进液口和出液口相连通的进液主槽和出液主槽，至少一条主槽设有与之相连通的不同孔径调速凹槽，调速凹槽与密封垫上设置的连接通道，或密封垫与流速调节板共同形成的连接通道连通；
调节器上设有流速标识，流速标识由刻度盘和对应的流速指示器组成。
一种输液用双刻度精准定速定量调节器，调节器包括固定底座，固定底座上方固定有可动的流速调节板，固定底座和流速调节板分别设有出液口和进液口；固定底座和流速调节板之间设有密封垫，密封垫上设有用于连通出液口和进液口的通孔；
固定底座或流速调节板中的至少一个设有流速调节通道，流速调节通道由主槽和与主槽连通的不同孔径调速凹槽组成，主槽与固定底座的出液口或流速调节板的进液口相连通，调速凹槽的另一端与密封垫的通孔相连通；
调节器上设有流速标识，流速标识由刻度盘和对应的流速指示器组成。
优选的，上述调节器中，调速凹槽呈放射状延伸分布在主槽一侧。
优选的，上述调节器中，液流通道为间隔分布的凹槽，或横截面积连续变化的凹槽。
优选的，上述调节器中，固定底座向外延伸有定位底盘，流速调节板向外延伸有定位动盘，定位底盘和定位动盘之间设有定位块。
优选的，上述调节器中，流速调节板整体为圆盘状，流速调节板通过其圆心固定在转轴上。
优选的，上述调节器中，刻度盘固定在固定底座上，对应的流速指示器与流速调节板同步移动；或流速指示器固定在固定底座上，刻度盘固定在流速调节板或转轴上。
优选的，上述调节器中，刻度盘上设有双刻度。
优选的，上述调节器中，刻度盘上的刻度相互错开。
优选的，上述调节器中，固定底座向外延伸有下支撑板，下支撑板内容纳有连通出液口的管道。
优选的，上述调节器中，固定底座向外延伸有上支撑板，上支撑板内容纳有连通进液口的管道。
优选的，上述调节器中，固定底座和流速调节板之间设有截止卡位。
优选的，上述调节器中，固定底座内壁设有用于固定流速调节板的卡扣结构。
优选的，上述调节器中，固定底座或流速调节板上设有密封垫定位柱，密封垫设有对应密封垫定位柱的定位孔。
优选的，上述调节器中，流速调节板向上延伸有环绕刻度盘的上护缘。
优选的，上述调节器中，固定底座向外延伸有上支撑板和下支撑板，上支撑板和下支撑板内分别容纳有连通进液口和出液口的管道，所述定位动盘向下延伸有环绕定位底盘的下护缘，上支撑板和下支撑板之间的固定底座设有容纳下护缘的凹槽。
优选的，上述调节器中，流速调节板和固定底座中的至少一个设有至少一个灭菌用通孔。
优选的，上述调节器中，流速标识设有流速增减标识。
优选的，上述调节器中，刻度盘由透明材料制成。
本发明的有益效果是：
本发明装置，通过改变液体通道的大小，实现对输液流速、流量的控制精确、快速、稳定，同时直观方便的阅读输液流速和输液流量，方便单手操作，符合临床多种使用习惯、多种应用环境，保证输液安全。特别在普通病人病情突然恶化时，快速满足输液转变为精准控制的紧急需求，赢取抢救时机。本发明装置，既可以应用于常规输液，也可用于输血、静脉营养。
本发明的装置，结构简单，可靠性高。当液流通道采用间隔式凹槽或流速调节通道采用间隔式调速凹槽设置时，可以实现对流量的非连续式定速调节。当液流通道采用环形凹槽或流速调节通道采用环形调速凹槽设置时，可以实现无级定速调节，更易于调节流速。
本发明的装置，可以方便地进行灭菌并取得令人满意的灭菌效果，使得产品可以很好地应用于医疗领域。
附图说明
图1是本发明装置的一种主体结构示意图；
图2是本发明装置的一种固定底座的俯视图；
图3是本发明装置的一种俯视结构图；
图4是本发明装置的另一种主体结构示意图；
图5是本发明装置的另一种主体结构示意图；
图6是本发明装置的另一种主体结构示意图；
图7是本发明装置的另一种固定底座的俯视图；
图8是本发明装置的另一种流速调节板下表面的俯视结构示意图；
图9是本发明装置另一种固定底座的俯视图；
图10是本发明装置的另一种俯视结构图；
图11是另一种流速调节通道的结构示意图。
具体实施方式
下面参照附图，进一步说明本发明的技术方案。
参照图1～4，一种输液用双刻度精准定速定量调节器，固定底座1上方固定有可动的流速调节板2，包括固定底座1，固定底座1下方设有进液口11和出液口12；
固定底座1和流速调节板2之间设有密封垫4，密封垫4上设有分别对应于进液口11和出液口12的通孔；
流速调节板2设有不同孔径的液流通道21，进液口11和出液口12通过密封垫4的通孔和液流通道21连通；
调节器上设有流速标识3，流速标识由刻度盘31和对应的流速指示器32组成。
参照图2、3、5、7，一种输液用双刻度精准定速定量调节器，包括固定底座1，固定底座1上方固定有可动的流速调节板2，固定底座1下方设有进液口11和出液口12；
固定底座1上设有分别与进液口11和出液口12相连通的进液主槽和出液主槽，至少一条主槽设有与之相连通的不同孔径调速凹槽13，调速凹槽13与密封垫上设置的连接通道，或密封垫与流速调节板共同形成的连接通道连通；
调节器上设有流速标识3，流速标识由刻度盘31和对应的流速指示器32组成。
当调速凹槽与进液主槽相连通时，药液通过进液口进入进液主槽，然后通过调速凹槽进行调速，之后通过密封垫上设置的连接通道，或密封垫与流速调节板共同形成的连接通道进入出液口，实现流速调节；类似的，当调速凹槽与出液口相连通时，药液通过进液口进入进液主槽，然后通过密封垫上设置的连接通道，或密封垫与流速调节板共同形成的连接通道进入调速凹槽，接着进入出液主槽，从出液口流出。密封垫上的连接通道最佳是简单的凹槽，也可以是一个孔道；也可以通过在密封垫上设置两个通孔，对应在流速调节板上设置凹槽或孔道形成最终连通进液口和出液口的液流通道。
参照图6、8、9、10，一种输液用双刻度精准定速定量调节器，包括固定底座1，固定底座1上方固定有可动的流速调节板2，固定底座1和流速调节板2分别设有出液口12和进液口11；固定底座1和流速调节板2之间设有密封垫4，密封垫4上设有用于连通出液口12和进液口11的通孔；
固定底座1或流速调节板2中的至少一个设有流速调节通道，流速调节通道由主槽和与主槽连通的不同孔径调速凹槽组成，主槽与固定底座的出液口或流速调节板的进液口相连通，调速凹槽的另一端与密封垫的通孔相连通；
调节器上设有流速标识3，流速标识由刻度盘31和对应的流速指示器32组成。
当流速调节通道设置于流速调节板时，液体通过进液口进入主槽，之后依次通过调速凹槽和密封垫上的通孔进入出液口；类似的，当流速调节通道设置于固定底座时，液体通过进液口依次进入密封垫上的通孔和入调速凹槽，接着进入主槽，最终通过出液口流出。
如图11所示，由主槽和调速凹槽共同构成的流速调节通道也可以是一条环形的凹槽C1，该凹槽的横截面积依次变小，与进液口或出液口相连的尾端C的横截面积最大。这样凹槽转动时，凹槽与出口之间的横截面积也随之变化，实现对流速的调节。
优选的，上述调节器中，流速调节板2和固定底座1中的至少一个设有至少一个灭菌用通孔22，灭菌用通孔优选至少有两个，其中一个用于输入灭菌液（气），另外一个用于导出入灭菌液（气）。在组装完毕后，灭菌用通孔处于封闭状态。
优选的，上述调节器中，液流通道为间隔分布的凹槽，或横截面积连续变化的至少一条凹槽。
当液流通道为间隔分布的凹槽或流速调节通道采用间隔式调速凹槽时，凹槽具有不同的孔径（横截面积）。优选的，凹槽为径向分布，不同的凹槽的长度相同。特别的，相邻的凹槽的最小横截面积朝一个方向依次增大，如由左至右依次增大，这样在进行流速调节时，可以使流速顺次增大或减小，方便调节流速；这些间隔的凹槽既可以单独作为液流通道调节流速，也可以是多个凹槽共同组合形成液流通道，这样可以更为精确的调节液流通道的面积，对流速进行更为精确的调节。凹槽的横截面可以是矩形、半圆形、管状或其他形状。
当液流通道为横截面积连续变化的凹槽或流速调节通道采用环形调速凹槽时，凹槽优选为圆弧形。液流通道或环形调速凹槽也可以由多条凹槽共同组成，这些凹槽彼此间共圆心。这种情况下，液流通道的横截面积为多条凹槽的总横截面积。当凹槽移动时，其与密封垫之间的横截面积也随之变化，进而控制流速。横截面积优选沿一个方向连续增大或减小，方便使流速相应地连续增大或减小。凹槽的横截面可以是矩形、半圆形或其他半封闭形状。
优选的，上述调节器中，固定底座1向外延伸有定位底盘13，流速调节板2向外延伸有定位动盘23，定位底盘13和定位动盘23之间设有定位块24。
定位块可以是相互配合的定位凸起和定位凹槽，特别的，定位块为相互配合的半球状凸起和半球状凹陷。定位块优选有多组。定位块的设置可以指示调速是否到位，方便流速的设定，避免调节时出现失误，影响输液的进程。定位块的设置还可以保证在设定流速后，不会轻易变化，导致流速漂移。
优选的，上述调节器中，流速调节板整体为圆盘状，流速调节板通过其圆心固定在转轴上。调节流速时，流速调节板以转轴为轴心转动，与固定底座呈相对旋转。
优选的，上述调节器中，刻度盘固定在固定底座上，对应的流速指示器与流速调节板同步移动；或流速指示器固定在固定底座上，刻度盘固定在流速调节板或转轴上。
优选的，上述调节器中，刻度盘上的刻度为双刻度。双刻度即刻度盘上设有两条刻度线，两条刻度线的单位不相同，如第一刻度线34为流量单位ml/h，对侧的第二刻度线35为流速单位“滴/min”，方便操作人员根据医嘱快速确定流速，减少人工换算所需的时间；或两条刻度线的单位相同，但相互错开分布，这样配合相应的流速调节板，可以进一步提高流速调节的精度。
特别的，刻度盘为扇形或圆环，刻度主线36为一个或一个以上完整或不完整的圆形或椭圆形，第一刻度34和第二刻度35的刻度标识延长线均通过圆心。为便于在使用时更为清楚地指示调节方向，刻度盘上设有流量增减标识，如流量或流速增大的一侧设置增加标识，对应的，另一侧设置为减少标识，如图3所示。
优选的，上述调节器中，流速标识设有流速增减标识。流速增减标识可以设置在刻度盘，也可以设置在流速指示器上。
特别的，刻度盘上设刻度面板，刻度盘采用透明设计，调液阀上设有刻度指示延长座、流速流量刻度指示，与刻度盘的刻度面板上的刻度标识配合，指示阅读输液器的输液流速和输液流量状态。
更进一步的，刻度面板上设有至少两条刻度线，刻度线的刻度相互错开；刻度线的度量单位相同或不同；或两条刻度线共用一条刻度主线，两条刻度线的刻度分别位于刻度主线的两侧，相互错开分布；更佳的，数字标识位于刻度主线的不同侧，至少两条的数字标识方向不同，呈错位排列。通过这种错位设计，使得每条刻度线上的刻度间距更大，方便准确读数。两条刻度线上的总刻度更多，在方便准确读数的同时，可以进一步提高读数的精度。
一个具体的刻度盘实例为：刻度盘为扇形或圆环，刻度盘上设有两条刻度线，如一条刻度线为第一刻度34，设流量单位ml/h，在第一刻度34对侧设有另一条刻度线为第二刻度35，设流速单位“滴/min”，方便操作人员根据医嘱快速确定流速、流量，减少人工换算所需的时间，如刻度线的度量单位不同时，第一刻度34和第二刻度35的数字标识数值按滴系数互为换算关系。
优选的，上述调节器中，固定底座1向外延伸有上支撑板15和下支撑板16，上支撑板15和下支撑板16内分别容纳有连通进液口11和出液口12的管道。
支撑板在进行调节操作时，可以提供更好的支撑，方便操作，同时可以使液体更为顺畅的流入流出，减少人为操作对外接输液管的影响，也可以避免输液管弯折所引起的问题。
优选的，上述调节器中，固定底座和流速调节板之间设有截止卡位。截止卡位的设置，可以很好地限定流速调节板的最大位移，便于操控，减少误操作。
优选的，上述调节器中，固定底座1内壁设有用于固定流速调节板2的卡扣结构5。
卡扣结构的设置使得可以极为方便地将固定底座和流速调节板组装在一起，避免组件在灭菌后因为不便组装引起二次污染。特别的，当设有两卡扣时，组装时可以先将已经消毒灭菌组件固定在上一道的卡扣，这样组装得到的半成品内部形成的空腔可以与固定底座上的进液口和出液口相连通，可以更好的进行灭菌处理。灭菌完毕后，简单按压即可得到成品，有助于降低生产难度，得到灭菌更为彻底的产品。
优选的，上述调节器中，固定底座1或流速调节板2上设有密封垫定位柱14，密封垫设有对应密封垫定位柱的定位孔。定位柱不与具有调速功能的凹槽或液流通道同在一个部件上，如调速凹槽位于固定底座时，则定位柱设置于流速调节板上；反之，如调速凹槽位于流速调节板时，则定位柱设置于固定底座。
优选的，上述调节器中，流速调节板2向上延伸有环绕刻度盘31的上护缘25。
优选的，上述调节器中，固定底座向外延伸有上支撑板15和下支撑板16，上支撑板15和下支撑板16内分别容纳有连通进液口和出液口的管道，定位动盘23向下延伸有环绕定位底盘13的下护缘26，上支撑板15和下支撑板16之间的固定底座2设有容纳下护缘26的凹槽。
护缘的设置可以避免操作时发生过多的摩擦，使流量调节更为顺畅。
优选的，上述调节器中，刻度盘由透明材料制成。这样，流速指示器可以设置在刻度盘下方，避免流速指示器与刻度盘之间发生摩擦，带来不必要的阻力。
实施例1：
输液用双刻度精准定速定量调节器，包括固定底座，固定底座下方设有进液口和出液口，固定底座中部向上延伸有固定轴，边缘向上延伸有侧壁，固定轴和侧壁上设有上下两道卡扣，通过卡扣固定有可动的流速调节板；
流速调节板设有不同孔径的液流通道，液流通道间隔分布，液流通道的横截面积朝一侧依次增大，进液口和出液口通过液流通道连通；流速调节板上设有两个灭菌用通孔，通孔对称分布在流速调节板上；靠上的卡扣用于在灭菌前将流速调节板初步固定，使流速调节板和固定底座之间形成一个较大的空腔，便于使灭菌气体充分接触各部位，灭菌更为方便彻底，靠下的卡扣用于在灭菌完成后进一步通过按压，使流速调节板最终固定在固定底座上；
固定底座和流速调节板之间设有密封垫和截止卡位，密封垫上设有分别对应于进液口和出液口的通孔；固定底座上设有多个密封垫固定柱，密封垫上对应设有相应的通孔；截止卡位为固定底座和流速调节板边缘上相互配合的突块，其中固定底座上设有两个突块，流速调节板上设有一个突块，将流速调节板的移动范围限制在固定底座的两个突块之间；
固定底座向外延伸有定位底盘和支撑板，支撑板包括上支撑板和下支撑，其用途在于方便持手，上支撑板和下支撑内容纳有与进液口和出液口相连通的管道；
流速调节板向外延伸有定位动盘，定位底盘和定位动盘之间设有定位块，定位块为相互配合的定位凸起和定位凹槽；定位动盘的边缘分别向上和向下延伸出上护缘和下护缘；
构成流速标识之一的刻度盘固定在固定底座上的固定轴上，刻度盘由透明材料制成，为扇形或圆环状，刻度主线为一个或一个以上完整或不完整的圆形或椭圆形，第一刻度和第二刻度的刻度标识延长线均通过圆心，两条刻度线的刻度分别位于刻度主线的两侧，相互错开均匀分布；刻度盘上设有流量增减标识，流量或流速增大的一侧设置增加标识，对应的，另一侧设置为减少标识，便于在使用时更为清楚地指示调节方向，其表面略低于上护缘；流速指示器位于上护缘上，随流速调节板的转动而转动并指示出正确的流速；上支撑板和下支撑上设有容纳下护缘的凹槽，定位底盘所在的平面略高于下护缘最低处所在的平面，避免影响流速调节板的转动。
实施例2：
参照图5和图7，调节器的结构基本同实施例1，不同之处在于：
流速调节板2未设有液流通道，而设有用于固定密封垫4的定位柱14，密封垫4上设有对应定位柱14的通孔；固定底座1上设有分别与进液口11和出液口12相连通的进液主槽211和出液主槽213，其中进液主槽211的一侧放射状延伸分布有不同孔径的调速凹槽212，调速凹槽212与密封垫4上的凹槽41一端相连通，密封垫上4的凹槽41的另一端与出液主槽213连通。
实施例3：
参照图6、图8，调节器的结构基本同实施例1，不同之处在于流速调节的实现有所不同：
流速调节板2设有进液口11，固定底座1设有出液口12，流速调节板2设有流速调节通道，流速调节通道由主槽211和与主槽连通的不同孔径调速凹槽212组成，主槽211与进液口11相连通，调速凹槽212另一端与密封垫4上的通孔连通，密封垫4上通孔的另一端与固定底座1的出液口12连通，密封垫4通过固定底1设置的定位柱14固定在固定底座1上。
类似的，流速调节通道也可以设置在固定底座上，各通道的连接关系类似变更即可。

Claims (19)

  1. 一种输液用双刻度精准定速定量调节器，其特征在于：所述调节器包括固定底座，固定底座上方固定有可动的流速调节板，固定底座下方设有进液口和出液口；
    固定底座和流速调节板之间设有密封垫，密封垫上设有分别对应于进液口和出液口的通孔，流速调节板设有不同孔径的液流通道，进液口和出液口通过液流通道连通；或固定底座上设有分别与进液口和出液口相连通的进液主槽和出液主槽，至少一条主槽设有与之相连通的不同孔径调速凹槽，调速凹槽与密封垫上设置的连接通道，或密封垫与流速调节板共同形成的连接通道连通；
    调节器上设有流速标识，流速标识由刻度盘和对应的流速指示器组成。
  2. 一种输液用双刻度精准定速定量调节器，其特征在于：所述调节器包括固定底座，固定底座上方固定有可动的流速调节板，固定底座和流速调节板分别设有出液口和进液口；固定底座和流速调节板之间设有密封垫，密封垫上设有用于连通出液口和进液口的通孔；
    固定底座或流速调节板中的至少一个设有流速调节通道，流速调节通道由主槽和与主槽连通的不同孔径调速凹槽组成，主槽与固定底座的出液口或流速调节板的进液口相连通，调速凹槽的另一端与密封垫的通孔相连通；
    调节器上设有流速标识，流速标识由刻度盘和对应的流速指示器组成。
  3. 根据权利要求1或2所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述调速凹槽呈放射状延伸分布在主槽一侧。
  4. 根据权利要求1所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述液流通道为间隔分布的凹槽，或横截面积连续变化的凹槽。
  5. 根据权利要求1～3任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述固定底座向外延伸有定位底盘，流速调节板向外延伸有定位动盘，定位底盘和定位动盘之间设有定位块。
  6. 根据权利要求1～5任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述流速调节板整体为圆盘状，流速调节板通过其圆心固定在转轴上。
  7. 根据权利要求1～6任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述刻度盘固定在固定底座上，对应的流速指示器与流速调节板同步移动；或流速指示器固定在固定底座上，刻度盘固定在流速调节板上。
  8. 根据权利要求1～7任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述刻度盘上设有双刻度。
  9. 根据权利要求1～8任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述固定底座向外延伸有下支撑板，下支撑板内容纳有连通出液口的管道。
  10. 根据权利要求1、3～9任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述固定底座向外延伸有上支撑板，上支撑板内容纳有连通进液口的管道。
  11. 根据权利要求1～10任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述固定底座和流速调节板之间设有截止卡位。
  12. 根据权利要求1～11任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述固定底座内壁设有用于固定流速调节板的卡扣结构。
  13. 根据权利要求1～12任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：固定底座或流速调节板上设有密封垫定位柱，密封垫设有对应密封垫定位柱的定位孔。
  14. 根据权利要求8～13任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述刻度盘上的刻度相互错开。
  15. 根据权利要求1～14任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述流速调节板向上延伸有环绕刻度盘的上护缘。
  16. 根据权利要求1、3～15任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：所述固定底座向外延伸有上支撑板和下支撑板，上支撑板和下支撑板内分别容纳有连通进液口和出液口的管道，所述定位动盘向下延伸有环绕定位底盘的下护缘，上支撑板和下支撑板之间的固定底座设有容纳下护缘的凹槽。
  17. 根据权利要求1～16任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：流速调节板和固定底座中的至少一个设有至少一个灭菌用通孔。
  18. 根据权利要求1～17任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：流速标识设有流速增减标识。
  19. 根据权利要求1～18任意一项所述的一种输液用双刻度精准定速定量调节器，其特征在于：刻度盘由透明材料制成。
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CN104258488A (zh) * 2014-03-17 2015-01-07 胡绍勤 输液用双刻度精准定速定量调节器
CN104383623A (zh) * 2014-12-06 2015-03-04 胡绍勤 流速设定式调节器

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CN108607131A (zh) * 2018-04-27 2018-10-02 苏州科技城医院 精密输液管
CN108607131B (zh) * 2018-04-27 2024-01-30 苏州科技城医院 精密输液管

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