CN109224187B - Infusion driving device - Google Patents

Infusion driving device Download PDF

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Publication number
CN109224187B
CN109224187B CN201811195018.6A CN201811195018A CN109224187B CN 109224187 B CN109224187 B CN 109224187B CN 201811195018 A CN201811195018 A CN 201811195018A CN 109224187 B CN109224187 B CN 109224187B
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CN
China
Prior art keywords
driving
shell
infusion
crankshaft
cavity
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Application number
CN201811195018.6A
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Chinese (zh)
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CN109224187A (en
Inventor
胡国雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Zhongke Biomedical Electronics Co ltd
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Shenzhen Zhongke Biomedical Electronics Co ltd
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Priority to CN201811195018.6A priority Critical patent/CN109224187B/en
Publication of CN109224187A publication Critical patent/CN109224187A/en
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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
    • A61M5/142—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
    • A61M5/16804—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
    • 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

Abstract

The invention discloses an infusion driving device, which comprises a shell, a crankshaft pivoted in a cavity of the shell, a plurality of driving sheets sequentially arranged at intervals in parallel along the length direction of the crankshaft, and a limiting shaft penetrating through the driving sheets and used for preventing the driving sheets from swinging to two sides; the side wall of the cavity of the shell is provided with a plurality of sliding grooves, the driving plates move up and down along the corresponding sliding grooves under the driving action of the crankshaft, and the upper surface of the shell is provided with a long groove for exposing the driving end of the driving plate along the length direction. Through the design of the structure, the driving piece can be effectively limited to swing left and right when sliding along the chute through the arrangement of the limiting shaft, so that the driving precision of the infusion driving device is effectively improved, meanwhile, the processing precision of the chute can be effectively reduced, and the production cost of the infusion driving device is reduced.

Description

Infusion driving device
Technical Field
The invention relates to the technical field of medical equipment, in particular to an infusion driving device.
Background
The infusion pump is widely applied as a medical instrument for controlling the infusion amount by entering and stopping, and when a driving piece of the infusion pump in the prior art slides along a sliding groove in a shell of the infusion pump, a certain gap exists between the driving piece and the sliding groove, so that the phenomenon of side-to-side swing can occur when the driving piece moves up and down along the sliding groove, and the infusion precision of the infusion pump is greatly affected.
Disclosure of Invention
The invention aims to provide an infusion driving device, which can effectively prevent the driving piece from swinging in the left and right directions through the arrangement of limiting shafts penetrating through a plurality of driving pieces, thereby effectively improving the driving precision of the infusion driving device.
To achieve the purpose, the invention adopts the following technical scheme:
an infusion driving device comprises a shell, a crankshaft pivoted in a cavity of the shell, a plurality of driving sheets sequentially arranged at intervals in parallel along the length direction of the crankshaft, and a limiting shaft penetrating through the driving sheets and used for preventing the driving sheets from swinging to two sides; the side wall of the cavity of the shell is provided with a plurality of sliding grooves, the driving plates move up and down along the corresponding sliding grooves under the driving action of the crankshaft, and the upper surface of the shell is provided with a long groove for exposing the driving end of the driving plate along the length direction.
The upper end and/or the lower end of the driving piece are/is provided with a limiting groove along the movement direction, and the limiting shaft penetrates through the limiting groove.
The limiting groove is arranged as a waist-shaped groove, and the limiting groove is in sliding fit with the limiting shaft.
The two ends of the limiting shaft are fastened with the cavity wall of the shell, and the limiting shaft and the end shaft of the crankshaft are arranged at intervals in parallel.
The lower bottom surface of the shell is provided with a containing cavity, and the containing cavity is in through connection with the long groove.
The long groove is positioned right above the containing cavity, and the groove width of the long groove is smaller than the width of the containing cavity.
The two opposite side walls of the storage cavity are provided with the sliding grooves along the height direction of the cavity, and the sliding grooves are in sliding fit with the side walls of the driving piece.
The width of the driving end of the driving piece is equal to or smaller than that of the long groove.
One end of the shell is provided with a driving mechanism for driving the crankshaft to rotate.
The invention has the beneficial effects that: the invention provides an infusion driving device which comprises a shell, a crankshaft pivoted in a cavity of the shell, a plurality of driving sheets sequentially arranged at intervals in parallel along the length direction of the crankshaft, and a limiting shaft penetrating through the driving sheets and used for preventing the driving sheets from swinging to two sides; the side wall of the cavity of the shell is provided with a plurality of sliding grooves, the driving plates move up and down along the corresponding sliding grooves under the driving action of the crankshaft, and the upper surface of the shell is provided with a long groove for exposing the driving end of the driving plate along the length direction. Through the design of the structure, the driving piece can be effectively limited to swing left and right when sliding along the chute through the arrangement of the limiting shaft, so that the driving precision of the infusion driving device is effectively improved, meanwhile, the processing precision of the chute can be effectively reduced, and the production cost of the infusion driving device is reduced.
Drawings
Fig. 1 is a first isometric view of an infusion drive unit of the present invention.
Fig. 2 is a second isometric view of an infusion drive unit according to the present invention.
Fig. 3 is an isometric view of fig. 1 with the housing removed.
Fig. 4 is an isometric view of the housing of fig. 2.
Fig. 5 is an isometric view of fig. 1 mated with a drive mechanism.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 5, the present embodiment provides an infusion driving device, which includes a housing 1, a crankshaft 2 pivotally connected in a cavity of the housing 1, a plurality of driving plates 3 sequentially arranged in parallel and at intervals along a length direction of the crankshaft 2, and a limiting shaft 4 penetrating the driving plates 3 for preventing the driving plates 3 from swinging to two sides; a plurality of sliding grooves 11 are formed in the side wall of the cavity of the casing 1, the driving plates 3 move up and down along the corresponding sliding grooves 11 under the driving action of the crankshaft 2, and long grooves 12 for exposing the driving ends 31 of the driving plates 3 are formed in the upper surface of the casing 1 along the length direction.
Specifically, the housing in this embodiment is integrally formed by injection molding, a crankshaft is arranged in the middle of the cavity of the housing in a penetrating manner, and two ends of the crankshaft are matched with side walls at two ends of the cavity through bearings;
further, in this embodiment, in order to ensure that the plurality of driving plates can move up and down smoothly and accurately, two limiting grooves for penetrating the limiting shafts are formed along the up-down movement direction of the driving plates, the limiting grooves are respectively located at two sides of the crankshaft 2, and the end parts of the two limiting shafts are fastened with the side walls at two ends of the cavity;
in the embodiment, the limiting groove is a waist-shaped groove, the width of the waist-shaped groove is equal to the outer diameter of the limiting shaft, so that the driving piece is effectively limited to swing left and right when sliding up and down along the sliding groove, and the driving precision of the transfusion driving device is further effectively improved; compared with the prior art, the method has the advantages that the dependence on the accuracy of the sliding groove is effectively reduced, the processing accuracy requirement of the sliding groove is further effectively reduced, and the production cost of the shell is greatly reduced.
In addition, because the shell adopts the integrated into one piece setting that adopts above-mentioned structural design's infusion drive arrangement, in order to make things convenient for the installation of drive piece the lower bottom surface of casing 1 has seted up and has accomodate chamber 14, accomodate chamber 14 with elongated slot 12 link up, further, elongated slot 12 is located accomodate chamber 14 directly over, just elongated slot 12's groove width is less than accomodate the width of chamber 14, accomodate chamber 14's opposite both sides wall has seted up along the cavity direction of height spout 11, spout 11 with the lateral wall sliding fit of drive piece 3, the width of the drive end of drive piece 3 equals or is less than elongated slot 12's width. With this structural design casing, formed effectual prescribing a limit to a plurality of driving pieces that arrange in proper order along bent axle length direction, and then can make the driving piece smooth and easy along the spout slide from top to bottom under the bent axle effort to this drive end that makes the driving piece exposes and controls the liquid velocity of flow of transfer line according to the setting of bent axle drive route.
In this embodiment, as shown in fig. 5, one end of the housing 1 is provided with a driving mechanism 5 for driving the crankshaft 2 to rotate, and the driving mechanism drives a driven gear disposed at the end of the crankshaft to rotate through a driving gear disposed at the end of the driving motor, so as to drive the crankshaft to rotate, and forms the extrusion of a driving piece on the infusion tube through a pressing plate 6 disposed at the uppermost part of the housing.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (9)

1. An infusion driving device, characterized in that: the device comprises a shell, a crankshaft pivoted in a cavity of the shell, a plurality of driving sheets sequentially arranged at intervals in parallel along the length direction of the crankshaft, and a limiting shaft penetrating through the driving sheets and used for preventing the driving sheets from swinging to two sides; the side wall of the cavity of the shell is provided with a plurality of sliding grooves, the driving plates move up and down along the corresponding sliding grooves under the driving action of the crankshaft, and the upper surface of the shell is provided with a long groove for exposing the driving end of the driving plate along the length direction.
2. An infusion drive unit according to claim 1, wherein: and the upper end and/or the lower end of the driving piece are/is provided with a limiting groove along the movement direction, and the limiting shaft penetrates through the limiting groove.
3. An infusion drive unit according to claim 2, wherein: the limiting groove is arranged as a waist-shaped groove, and the limiting groove is in sliding fit with the limiting shaft.
4. An infusion drive unit according to claim 1, wherein: the two ends of the limiting shaft are fastened with the cavity wall of the shell, and the limiting shaft and the end shaft of the crankshaft are arranged at intervals in parallel.
5. An infusion drive unit according to claim 1, wherein: the lower bottom surface of the shell is provided with a containing cavity, and the containing cavity is in through connection with the long groove.
6. An infusion drive unit according to claim 5, wherein: the long groove is positioned right above the containing cavity, and the groove width of the long groove is smaller than the width of the containing cavity.
7. An infusion drive unit according to claim 5, wherein: the opposite side walls of the storage cavity are provided with the sliding grooves along the height direction of the cavity, and the sliding grooves are in sliding fit with the side walls of the driving piece.
8. An infusion drive unit according to claim 1, wherein: the width of the driving end of the driving piece is equal to or smaller than the width of the long groove.
9. An infusion drive unit according to claim 1, wherein: one end of the shell is provided with a driving mechanism for driving the crankshaft to rotate.
CN201811195018.6A 2018-10-15 2018-10-15 Infusion driving device Active CN109224187B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811195018.6A CN109224187B (en) 2018-10-15 2018-10-15 Infusion driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811195018.6A CN109224187B (en) 2018-10-15 2018-10-15 Infusion driving device

Publications (2)

Publication Number Publication Date
CN109224187A CN109224187A (en) 2019-01-18
CN109224187B true CN109224187B (en) 2023-09-22

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109621081B (en) * 2019-01-30 2023-12-08 深圳中科生物医疗电子有限公司 Infusion pump with different-speed clutch mechanism
CN109621080B (en) * 2019-01-30 2023-09-15 深圳中科生物医疗电子有限公司 Infusion pump
CN109663171B (en) * 2019-01-31 2023-10-27 深圳中科生物医疗电子有限公司 Infusion pump provided with worm clutch mechanism
CN109793963B (en) * 2019-01-31 2023-11-28 深圳中科生物医疗电子有限公司 Infusion pump with position-adjustable driving device
CN109701109B (en) * 2019-03-13 2024-01-30 深圳中科生物医疗电子有限公司 Infusion mechanism
CN109718423B (en) * 2019-03-13 2023-11-10 深圳中科生物医疗电子有限公司 Infusion device
CN113144333B (en) * 2021-05-26 2024-02-02 深圳中科生物医疗电子有限公司 Infusion device and infusion pump

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JPH03261489A (en) * 1990-03-13 1991-11-21 Skylite Ind Co Ltd Oscillating implement
JP2001137340A (en) * 1999-11-18 2001-05-22 Opt:Kk Portable intravenous injection device
JP2011239873A (en) * 2010-05-17 2011-12-01 Ricoh Co Ltd Infusion pump
CN202154911U (en) * 2011-06-24 2012-03-07 苏州市力得医疗器械设备厂 High-precision intelligent infusion pump
CN203763582U (en) * 2013-08-26 2014-08-13 苏州鼎诺医疗设备有限公司 Infusion pump
CN105363094A (en) * 2015-11-20 2016-03-02 深圳影迈科技股份有限公司 Infusion pump and infusion equipment
WO2016198197A1 (en) * 2015-06-11 2016-12-15 Fresenius Vial Sas Infusion device comprising a wobbling device for acting onto a pump module
CN106421976A (en) * 2016-08-08 2017-02-22 上海金怡医疗科技有限公司 Extruding-swinging type eccentric wheel drive mechanical and electrical integration system
CN209270495U (en) * 2018-10-15 2019-08-20 深圳中科生物医疗电子有限公司 A kind of infusion driving device

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US6770067B2 (en) * 2001-09-07 2004-08-03 Medtronic Minimed, Inc. Infusion device and driving mechanism for same
US6929619B2 (en) * 2002-08-02 2005-08-16 Liebel-Flarshiem Company Injector
US8137314B2 (en) * 2006-08-23 2012-03-20 Medtronic Minimed, Inc. Infusion medium delivery device and method with compressible or curved reservoir or conduit
US7572240B2 (en) * 2006-06-21 2009-08-11 Nanma Manufacturing Co., Ltd. Massage apparatus system
IT1403780B1 (en) * 2010-12-02 2013-10-31 Cane Spa DEVICE FOR THE INFUSION OF DRUGS.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03261489A (en) * 1990-03-13 1991-11-21 Skylite Ind Co Ltd Oscillating implement
JP2001137340A (en) * 1999-11-18 2001-05-22 Opt:Kk Portable intravenous injection device
JP2011239873A (en) * 2010-05-17 2011-12-01 Ricoh Co Ltd Infusion pump
CN202154911U (en) * 2011-06-24 2012-03-07 苏州市力得医疗器械设备厂 High-precision intelligent infusion pump
CN203763582U (en) * 2013-08-26 2014-08-13 苏州鼎诺医疗设备有限公司 Infusion pump
WO2016198197A1 (en) * 2015-06-11 2016-12-15 Fresenius Vial Sas Infusion device comprising a wobbling device for acting onto a pump module
CN105363094A (en) * 2015-11-20 2016-03-02 深圳影迈科技股份有限公司 Infusion pump and infusion equipment
CN106421976A (en) * 2016-08-08 2017-02-22 上海金怡医疗科技有限公司 Extruding-swinging type eccentric wheel drive mechanical and electrical integration system
CN209270495U (en) * 2018-10-15 2019-08-20 深圳中科生物医疗电子有限公司 A kind of infusion driving device

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