CN105688312A - Device for adjusting conveying flow of medicine liquid - Google Patents

Device for adjusting conveying flow of medicine liquid Download PDF

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Publication number
CN105688312A
CN105688312A CN201610140724.5A CN201610140724A CN105688312A CN 105688312 A CN105688312 A CN 105688312A CN 201610140724 A CN201610140724 A CN 201610140724A CN 105688312 A CN105688312 A CN 105688312A
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CN
China
Prior art keywords
cam
section
crushing block
medicinal liquid
liquid feed
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
Application number
CN201610140724.5A
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Chinese (zh)
Other versions
CN105688312B (en
Inventor
李立辉
蒋予川
李波波
吴佳
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Beijing Ksh Medical Technology Co ltd
Original Assignee
Beijing KSH Technology Institute
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
Application filed by Beijing KSH Technology Institute filed Critical Beijing KSH Technology Institute
Priority to CN201610140724.5A priority Critical patent/CN105688312B/en
Publication of CN105688312A publication Critical patent/CN105688312A/en
Application granted granted Critical
Publication of CN105688312B publication Critical patent/CN105688312B/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means 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
    • A61M5/16877Adjusting flow; Devices for setting a flow rate
    • A61M5/16881Regulating valves

Abstract

The invention relates to a device for adjusting the conveying flow of medicine liquid. The device comprises a shell, a rotary shaft, a plurality of cams, extruding blocks, a liquid inlet tube and a liquid outlet tube. The rotary shaft is rotationally arranged in the shell, the cams are coaxially and fixedly arranged on the rotary shaft, and the liquid inlet tube and the liquid outlet tube are arranged in the shell and communicated through a plurality of connecting tubes. Elastic tube segments made of elastic materials are arranged on the connecting tubes, the elastic tube segments of the connecting tubes are correspondingly arranged below the cams, and the extruding blocks are arranged between the elastic tube segments of the connecting tubes and the cams. The cams are rotated through the rotary shaft, the cams push the extruding blocks to vertically move, and then adjustment on closing, opening and flow of the connecting tubes is achieved. According to the technical scheme, the device has the advantages that the structure is simple, the inner diameter of flow limiting tube segments of the connecting tubes is only 0.05 mm to 0.07 mm, and the flow of the medicine liquid can be precisely adjusted by adjusting the number of the elastic tube segments, closed or opened by rotating the rotary shaft, of the connecting tubes.

Description

A kind of device for regulating medicinal liquid feed flow
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of device for regulating medicinal liquid feed flow。
Background technology
At present, the non-electric drive infusion pump flow on market cannot manual adjustments, flow or flow velocity are fixed, it is impossible to realize suitably regulating according to the individual instances of patient;And the flow regulator on common infusion pipeline is manual pinch-roller type, uninterrupted is generally according to the experience manual adjustments of medical personnel, and the speed that uninterrupted is also according to dropping liquid is estimated, very inaccuracy。
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention there is provided a kind of device for regulating medicinal liquid feed flow, and this device is provided with some flow shelves, can the transporting velocity of even regulation medicinal liquid。
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of device for regulating medicinal liquid feed flow, it includes housing, rotating shaft, cam, crushing block, feed tube and drain pipe;Rotating shaft is rotatably arranged in housing, several cam coaxial hearts are fixedly installed on the rotary shaft, feed tube and drain pipe are arranged in housing, connected by some connecting tubes between feed tube with drain pipe, connecting tube is provided with the elastic pipeline section being made up of elastomeric material, the elastic pipeline section of connecting tube is correspondingly arranged at the lower section of cam, is provided with crushing block between connecting tube elasticity pipeline section and cam;Crushing block can be arranged in housing up or down, and under the elastic force effect of connecting tube elasticity pipeline section, crushing block tends to moving upward and being resisted against on cam;Rotating cam by rotating shaft, cam driven crushing block moves up and down, and then realizes the adjustment to the closedown of connecting tube, folding and flow。
Further, the cross section contour of described cam includes close segments and folding section;When described crushing block is resisted against in the close segments of cam, crushing block completely cuts through the connection of connecting tube;When crushing block is resisted against in the folding section of cam, crushing block fully opens the connection of connecting tube;Described close segments is circular arc。
Further, described folding section includes all-pass section;The all-pass section of all of cam overlaps on axis projection face, and all of described crushing block is resisted against in all-pass section simultaneously, and all of described connecting tube is simultaneously open-minded, and the flow velocity between described feed tube and drain pipe is maximum。
Further, the described device for regulating medicinal liquid feed flow includes the n that is arranged in order described cam;The starting point of the close segments circular arc of n described cam overlaps on axis projection face;Setting radian corresponding to described all-pass section as α, the radian of the close segments of the i-th cam is i (2 π-α)/n;Wherein n, i are positive integer, i≤n。
Further, the described device for regulating medicinal liquid feed flow includes the n that is arranged in order described cam;Being provided with jth+1 beginning section of closing in the described folding section of jth cam, wherein j, n are positive integer, j≤n-1;When jth crushing block is resisted against jth+1 beginning section of closing on jth cam, jth+1 crushing block is resisted against in the close segments on jth+1 cam。
Further, described all-pass section, n-1 described jth+1 beginning section of closing are linear type;All-pass section on same cam and being connected by the line that smoothly transits between the beginning section of closing。
Further, the length of n-1 the described beginning section of closing is identical。
Further, the described device for regulating medicinal liquid feed flow includes the 5-8 that is arranged in order described cam。
Further, one end of described rotating shaft is provided with flow adjustment knob。
Further, the cylindrical of described flow adjustment knob is marked with flow labelling。
Further, the cylindrical of described flow adjustment knob is provided with anti-skidding strip groove or anti-skidding burr。
Further, described connecting tube also including current limliting pipeline section, the internal orifice dimension of described current limliting pipeline section is 0.05-0.07mm。
Further, the material of the elastic pipeline section of described connecting tube is silica gel。
Further, described current limliting pipeline section is made by by hard material。
Further, described housing includes upper shell and lower house;The two ends of described connection axle are rotatably arranged in lower house by bearing shell;The endcapped of described feed tube and drain pipe。
Further, described cam and described rotating shaft are made into integration, and rotating shaft center is provided with steel axle。
(3) beneficial effect
The technique scheme of the present invention has the advantages that present configuration is simple, and the internal diameter of connecting tube current limliting pipeline section is only 0.05-0.07mm, by rotating the quantity that rotating shaft is closed or opened connecting tube elasticity pipeline section, and can accurate regulating flow quantity。
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the transverse sectional view of the embodiment of the present invention;
Fig. 3 is the front view of Fig. 1 in the embodiment of the present invention;
Fig. 4 is the rotating shaft sectional view of the embodiment of the present invention;
Fig. 5 is the side view of the cam set of the embodiment of the present invention;
Fig. 6 is the side view of the 6th cam of the embodiment of the present invention;
Fig. 7 is the side view of the 5th cam of the embodiment of the present invention;
Fig. 8 is the side view of the 4th cam of the embodiment of the present invention;
Wherein, 1: housing;2: rotating shaft;2a: steel axle;3: cam;3a: close segments;3b: folding section;3b1: all-pass section;3b2: begin the section of closing;5: feed tube;6: drain pipe;7: connecting tube;7a: elastic pipeline section;7b: current limliting pipeline section;8: crushing block;9: flow adjustment knob;10: bearing shell;
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail。Following example are used for illustrating the present invention, but can not be used for limiting the scope of the present invention。
In describing the invention, it is necessary to explanation, except as otherwise noted, " multiple " are meant that two or more;Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention。Additionally, term " first ", " second ", " the 3rd " etc. are only for descriptive purposes, and it is not intended that indicate or hint relative importance。
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly;Can be mechanically connected, it is also possible to be electrical connection;Can be joined directly together, it is also possible to be indirectly connected to by intermediary。For the ordinary skill in the art, visual concrete condition understands above-mentioned term concrete meaning in the present invention。
As Figure 1-3, a kind of device for regulating medicinal liquid feed flow that the present embodiment provides, it includes housing 1, rotating shaft 2, cam 3, crushing block 8, feed tube 5 and drain pipe 6;Rotating shaft 2 is rotatably arranged in housing 1 by bearing shell 10, and 6 cam 3 concentrics are fixedly installed on rotating shaft 2;Feed tube 5 and drain pipe 6 are arranged in parallel in housing, the endcapped of feed tube 5 and drain pipe 6, it is respectively arranged with inlet and liquid outlet, connected by 6 connecting tubes 7 between feed tube 5 with drain pipe 6, connecting tube 7 includes the elastic pipeline section 7a being made up of silica gel and the current limliting pipeline section 7b being made up of hard material, and the internal orifice dimension of current limliting pipeline section 7b is 0.06mm。Elastic pipeline section 7a and current limliting pipeline section 7b links together。The elastic pipeline section 7a of connecting tube 7 is correspondingly arranged at the lower section of cam 3, is provided with crushing block 8 between connecting tube elasticity pipeline section 7a and cam 3;Crushing block 8 can be arranged in housing 1 up or down, and under the elastic force effect of connecting tube elasticity pipeline section 7a, crushing block 8 tends to moving upward and being resisted against on cam 3;Rotating cam by rotating shaft 2, cam 3 drives crushing block 8 to move up and down, and then realizes the adjustment to the closedown of connecting tube 7, folding and flow。
One end of rotating shaft 2 is provided with flow adjustment knob 9。The cylindrical of flow adjustment knob 9 is marked with flow labelling and anti-skidding strip groove or anti-skidding burr。Housing 1 includes upper shell 1b and lower house 1a;The two ends connecting axle 2 are rotatably arranged in lower house 1a by bearing shell 10;And the endcapped of feed tube 5 and drain pipe 6, and it is respectively arranged with inlet and liquid outlet。
As shown in Figure 4, cam 3 and rotating shaft 2 are made into integration, and rotating shaft 2 center studs with steel axle 2a, it is prevented that cam 3 and rotating shaft 2 occur bending and deformation because of insufficient strength, cause disabler。
As viewed in figures 5-8, the cross section contour of cam 3 includes close segments 3a and folding section 3b;When crushing block 8 is resisted against on the close segments 3a of cam, crushing block 8 completely cuts through the connection of connecting tube 7;When crushing block 8 is resisted against on the folding section 3b of cam 3, crushing block 8 fully opens the connection of connecting tube 7。It is provided with smooth transition curve between close segments 3a and folding section 3b。
Folding section 3b includes all-pass section 3b1;The all-pass 3b1 section of several cams overlaps on axis projection face, and when 6 crushing blocks 8 are resisted against on the all-pass section 3b1 on 6 cams simultaneously, 6 connecting tubes 7 are simultaneously open-minded, and the flow velocity between feed tube 5 and drain pipe 6 is maximum。
Close segments 3a is circular arc, and the starting point of the close segments 3a circular arc of 6 cams 3 overlaps on axis projection face;Setting radian corresponding to all-pass section as α, the radian of the close segments of the i-th cam is i (2 π-α)/6;Wherein i is positive integer, i≤6。
Being provided with jth+1 beginning section of a closing 3b2 on the folding section 3b of jth cam, wherein j is positive integer, j≤5;When jth crushing block is resisted against jth+1 beginning section of the closing 3b2 on jth cam, jth+1 crushing block 8 starts to abut against on the close segments 3a on jth+1 cam 3。All-pass section, 5 jth+1 beginning section of closing 3b2 are linear type;All-pass section on same cam and being connected by the line that smoothly transits between the beginning section of closing。The length of 5 the beginning section of closing 3b2 is identical。
Specifically, as shown in Figure 6, the cross section contour of the 6th cam includes close segments 3a and folding section 3b;Folding section 3b comprises an all-pass section 3b1, is connected by the line that smoothly transits between all-pass section 3b1 and close segments 3a。
As it is shown in fig. 7, the cross section contour of the 5th cam includes close segments 3a and folding section 3b;Folding section 3b comprises an all-pass section 3b1 and one the 6th section of the closing 3b26 that begins, when the 5th crushing block is resisted against on the 6th upper beginning section of the closing 3b26 of the 5th cam, 6th crushing block then starts to abut against in the close segments on the 6th cam, and namely the 6th cam starts extruding and cuts off the 6th connecting tube。At this moment other 5 connecting tubes still keep opening state。
As shown in Figure 8, the cross section contour of the 4th cam includes close segments 3a and folding section 3b;Folding section 3b comprises an all-pass section 3b1 and one the 5th section of the closing 3b25 that begins, when the 4th crushing block is resisted against on the 5th upper beginning section of the closing 3b25 of the 4th cam, 5th crushing block then can be resisted against in the close segments on the 5th cam, and namely the 5th cam starts extruding and cuts off the 5th connecting tube。
Other cam structures the like。
By the setting of said structure, linear folding section has locking rotating shaft and prevents the effect of its rotation, and except all-pass section, the beginning section of closing in the folding section of each cam is end to end successively on axis projection face, and the section of closing that begins between two is not overlapping, it is connected by the line that smoothly transits between all-pass section with the beginning section of closing, thus achieving between cam and crushing block smooth and easy in relative rotation most possibly, namely ensure that in flow adjustment process and seamlessly transit, it is to avoid prior art adjusts the phenomenon of process flow generation larger fluctuation。
Embodiments of the invention provide for example with for the purpose of describing, and are not exhaustively or limit the invention to disclosed form。Many modifications and variations are apparent from for the ordinary skill in the art。Selecting and describing embodiment is in order to principles of the invention and practical application are better described, and makes those of ordinary skill in the art it will be appreciated that the present invention is thus design is suitable to the various embodiments with various amendments of special-purpose。

Claims (10)

1. the device being used for regulating medicinal liquid feed flow, it is characterised in that it includes housing, rotating shaft, cam, crushing block, feed tube and drain pipe;Rotating shaft is rotatably arranged in housing, several cam coaxial hearts are fixedly installed on the rotary shaft, feed tube and drain pipe are arranged in housing, connected by some connecting tubes between feed tube with drain pipe, connecting tube is provided with the elastic pipeline section being made up of elastomeric material, the elastic pipeline section of connecting tube is correspondingly arranged at the lower section of cam, is provided with crushing block between connecting tube elasticity pipeline section and cam;Crushing block can be arranged in housing up or down, and under the elastic force effect of connecting tube elasticity pipeline section, crushing block tends to moving upward and being resisted against on cam;Rotating cam by rotating shaft, cam driven crushing block moves up and down, and then realizes the adjustment to the closedown of connecting tube, folding and flow。
2. the device for regulating medicinal liquid feed flow according to claim 1, it is characterised in that the cross section contour of described cam includes close segments and folding section;When described crushing block is resisted against in the close segments of cam, crushing block completely cuts through the connection of connecting tube;When crushing block is resisted against in the folding section of cam, crushing block fully opens the connection of connecting tube;Described close segments is circular arc。
3. the device for regulating medicinal liquid feed flow according to claim 2, it is characterised in that include all-pass section in described folding section;The all-pass section of all cams overlaps on axis projection face, and all of described crushing block is resisted against in all-pass section simultaneously, and all of described connecting tube is simultaneously open-minded, and the flow velocity between described feed tube and drain pipe is maximum。
4. the device for regulating medicinal liquid feed flow according to claim 3, it is characterised in that the described device for regulating medicinal liquid feed flow includes n the described cam being arranged in order;The starting point of the close segments circular arc of n described cam overlaps on axis projection face;Setting radian corresponding to described all-pass section as α, the radian of the close segments of the i-th cam is i (2 π-α)/n;Wherein n, i are positive integer, i≤n。
5. the device for regulating medicinal liquid feed flow according to claim 3, it is characterised in that the described device for regulating medicinal liquid feed flow includes n the described cam being arranged in order;Being provided with jth+1 beginning section of closing in the described folding section of jth cam, wherein j, n are positive integer, j≤n-1;When jth crushing block is resisted against jth+1 beginning section of closing on jth cam, jth+1 crushing block is resisted against in the close segments on jth+1 cam。
6. the device for regulating medicinal liquid feed flow according to claim 5, it is characterised in that described all-pass section, n-1 described jth+1 beginning section of closing is linear type;All-pass section on same cam and being connected by the line that smoothly transits between the beginning section of closing。
7. the device for regulating medicinal liquid feed flow according to claim 6, it is characterised in that the length of n-1 the described beginning section of closing is identical。
8. the device for regulating medicinal liquid feed flow according to claim 1, it is characterised in that the described device for regulating medicinal liquid feed flow includes 5-8 the described cam being arranged in order。
9. the device for regulating medicinal liquid feed flow according to claim 1, it is characterised in that one end of described rotating shaft is provided with flow adjustment knob;The cylindrical of described flow adjustment knob is marked with flow labelling;The cylindrical of described flow adjustment knob is provided with anti-skidding strip groove or anti-skidding burr。
10. the device for regulating medicinal liquid feed flow according to claim 1, it is characterised in that also including current limliting pipeline section in described connecting tube, the internal orifice dimension of described current limliting pipeline section is 0.05-0.07mm。
CN201610140724.5A 2016-03-11 2016-03-11 Device for adjusting liquid medicine conveying flow Active CN105688312B (en)

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CN105688312B CN105688312B (en) 2024-03-08

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020162590A1 (en) * 2001-03-23 2002-11-07 Ferton Holding S.A. Valve arrangement for a medical apparatus
CN2543527Y (en) * 2002-05-24 2003-04-09 李勇 Infusicn regulator
CN101687076A (en) * 2006-12-22 2010-03-31 世界科技有限公司 Flow controller
CN101766848A (en) * 2008-12-29 2010-07-07 北京谊安医疗系统股份有限公司 Infusion set
CN201551670U (en) * 2009-11-20 2010-08-18 孙建斌 Micro infusion controller
CN102218174A (en) * 2011-06-02 2011-10-19 闫云涛 Infusion set flow rate controller
CN202223641U (en) * 2011-09-02 2012-05-23 上海大学 Intelligent safe transfusion system
CN203303431U (en) * 2013-05-15 2013-11-27 深圳市深科医疗器械技术开发有限公司 Infusion pump
WO2014062013A1 (en) * 2012-10-18 2014-04-24 주식회사 우영메디칼 Apparatus for controlling flow of chemical liquid
CN203861678U (en) * 2014-05-29 2014-10-08 哈尔滨理工大学 Disposable infusion set capable of conveniently adjusting flow
CN204582166U (en) * 2015-03-26 2015-08-26 江苏阳普医疗科技有限公司 A kind of transfusion variator
CN204840513U (en) * 2015-07-13 2015-12-09 南昌贝欧特医疗科技股份有限公司 Disposable infusion pump uses many flow regulator
CN204864366U (en) * 2015-05-25 2015-12-16 美敦力公司 Flow regulator and fluid infusion equipment
CN205549135U (en) * 2016-03-11 2016-09-07 北京科联升华应用技术研究所 A device for adjusting liquid medicine delivery flow

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020162590A1 (en) * 2001-03-23 2002-11-07 Ferton Holding S.A. Valve arrangement for a medical apparatus
CN2543527Y (en) * 2002-05-24 2003-04-09 李勇 Infusicn regulator
CN101687076A (en) * 2006-12-22 2010-03-31 世界科技有限公司 Flow controller
CN101766848A (en) * 2008-12-29 2010-07-07 北京谊安医疗系统股份有限公司 Infusion set
CN201551670U (en) * 2009-11-20 2010-08-18 孙建斌 Micro infusion controller
CN102218174A (en) * 2011-06-02 2011-10-19 闫云涛 Infusion set flow rate controller
CN202223641U (en) * 2011-09-02 2012-05-23 上海大学 Intelligent safe transfusion system
WO2014062013A1 (en) * 2012-10-18 2014-04-24 주식회사 우영메디칼 Apparatus for controlling flow of chemical liquid
CN203303431U (en) * 2013-05-15 2013-11-27 深圳市深科医疗器械技术开发有限公司 Infusion pump
CN203861678U (en) * 2014-05-29 2014-10-08 哈尔滨理工大学 Disposable infusion set capable of conveniently adjusting flow
CN204582166U (en) * 2015-03-26 2015-08-26 江苏阳普医疗科技有限公司 A kind of transfusion variator
CN204864366U (en) * 2015-05-25 2015-12-16 美敦力公司 Flow regulator and fluid infusion equipment
CN204840513U (en) * 2015-07-13 2015-12-09 南昌贝欧特医疗科技股份有限公司 Disposable infusion pump uses many flow regulator
CN205549135U (en) * 2016-03-11 2016-09-07 北京科联升华应用技术研究所 A device for adjusting liquid medicine delivery flow

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Inventor after: Li Lihui

Inventor after: Peng Jian

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Inventor before: Jiang Yuchuan

Inventor before: Li Bobo

Inventor before: Wu Jia

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Address after: Room 601, 6th Floor, Building 1, No. 8 Shixing East Street, Shijingshan District, Beijing, 100041

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Country or region after: China

Address before: O, innovation park, Badachu science and Technology Park, Shijingshan District, Beijing

Patentee before: BEIJING KSH TECHNOLOGY INSTITUTE

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