CN202682434U - Control system of peristaltic pump for blood purification - Google Patents

Control system of peristaltic pump for blood purification Download PDF

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Publication number
CN202682434U
CN202682434U CN 201220360385 CN201220360385U CN202682434U CN 202682434 U CN202682434 U CN 202682434U CN 201220360385 CN201220360385 CN 201220360385 CN 201220360385 U CN201220360385 U CN 201220360385U CN 202682434 U CN202682434 U CN 202682434U
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CN
China
Prior art keywords
peristaltic pump
control circuit
control system
blood purification
pump
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.)
Expired - Lifetime
Application number
CN 201220360385
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Chinese (zh)
Inventor
高光勇
童锦
任应祥
李昔华
卢继珍
王勇清
谢川
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.)
Sws Hemodialysis Care Co ltd
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Chongqing Shanwaishan Science & Technology Co Ltd
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Priority to CN 201220360385 priority Critical patent/CN202682434U/en
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Publication of CN202682434U publication Critical patent/CN202682434U/en
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Abstract

The utility model discloses a control system of a peristaltic pump for blood purification and relates to a part of a blood hemodialysis machine. The control system comprises a control circuit and a motor driving circuit, wherein the output end of the control circuit is connected with the input end of the motor driving circuit; the first input end of the control circuit is connected with the signal output end of a position sensor; and the second input end of the control circuit is connected with the signal output end of an angular velocity sensor. By using the control system, the rotating speed of the peristaltic pump can be rapidly adjusted, so that the rotating speed of the peristaltic pump is stable, and the backflow phenomenon is not easy to generate during use; the rotating speed of the peristaltic pump is kept stable, so that the loss of the peristaltic pump is reduced and the life of the peristaltic pump is prolonged; in addition, the control system also has the advantages of no pollution, high precision, good sealing performance and the like.

Description

A kind of blood purification peristaltic pump control system
Technical field
This utility model relates to a kind of haemodialysis control unit parts, particularly relates to a kind of blood purification peristaltic pump control system and method.
Background technology
Peristaltic pump is widely used in the blood cleaning equipment owing to its pollution-free, advantages such as precision is high, good airproof performance.Conventional peristaltic pump control system only can be regulated the accumulative total speed that peristaltic pump fortune circles, and can not realize the adjusting of peristaltic pump angular velocity.
Traditional peristaltic pump is subjected to structural limitations, pump is when running to different angles, suffered resistance is inconsistent, and it is not very stable causing its rotating speed, so pump can produce a stream of pulses when running, pressure in the pipeline is changed greatly, backflow phenomenon appears in stream of pulses that peristaltic pump is produced simultaneously, affects the stability of pump line internal pressure and flow, the alarming line that easily exceeds blood cleaning equipment affects the comfortableness of patient simultaneously.
The utility model content
Because the defects of prior art, technical problem to be solved in the utility model provide a kind of can be to the blood purification that the angular velocity of peristaltic pump is regulated peristaltic pump control system.
For achieving the above object, this utility model provides a kind of blood purification peristaltic pump control system, comprises control circuit and motor-drive circuit; The outfan of described control circuit connects the input of described motor-drive circuit; The signal output part of the first input end link position sensor of described control circuit; The signal output part of the second input joint angle velocity sensor of described control circuit, better, described control circuit is single-chip microcomputer.
Described position sensor is used for the circumferential position of monitoring peristaltic pump pump shaft; Described angular-rate sensor is used for monitoring the magnitude of angular velocity of described peristaltic pump pump shaft; The outfan of described control circuit connects the input of described motor-drive circuit; The signal output part of the first input end link position sensor of described control circuit; The signal output part of the second input joint angle velocity sensor of described control circuit.
Fixing control signal amount of described control circuit output controls described peristaltic pump rotation for described motor-drive circuit during use; Described position sensor records the circumferential position of described peristaltic pump pump shaft and data is passed to described control circuit, described angular-rate sensor is measured the magnitude of angular velocity of described peristaltic pump pump shaft correspondence on each circumferential position and data is passed to described control circuit, thereby draws the target angular velocity value of described each circumferential position of peristaltic pump pump shaft.
Then, described control circuit output control signal amount controls described peristaltic pump rotation for described motor-drive circuit; Described control circuit gathers the actual angular speed value of described each circumferential position of peristaltic pump pump shaft by described position sensor and angular-rate sensor, and the target angular velocity value that obtains is deducted the actual angular speed value of each circumferential position of pump shaft, draw the velocity variations difference of described each circumferential position of pump shaft.
Velocity variations difference by described each circumferential position of pump shaft of drawing draws corresponding control signal amount difference at last; With the control signal amount difference of described fixing control signal amount and described each circumferential position of pump shaft and as the correcting controlling signal amount of described each circumferential position of pump shaft; Described control circuit output calibration control signal amount is controlled described peristaltic pump and is rotated, until each circumferential position of the pump shaft of described peristaltic pump all reaches the target angular velocity value that obtains.
Described position sensor is installed on the motor output shaft of described peristaltic pump, and is better, and described position sensor can also be installed on the pump shaft of described peristaltic pump.
The beneficial effects of the utility model are: the velocity of rotation that this utility model can the quick adjustment peristaltic pump, so that the velocity-stabilization that peristaltic pump rotates, be not prone to backflow phenomenon during use, owing to keeping the stabilization of speed of peristaltic pump, reduced the loss of peristaltic pump, improved the life-span of peristaltic pump, in addition, pollution-free, the advantages such as precision is high, good airproof performance that this utility model also has.
Description of drawings
Fig. 1 is circuit theory schematic diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, a kind of blood purification peristaltic pump control system, comprise control circuit 1 and motor-drive circuit 2, the outfan of described control circuit 1 connects the input of described motor-drive circuit 2, the signal output part of the first input end link position sensor 3 of described control circuit 1, the signal output part of the second input joint angle velocity sensor 4 of described control circuit 1.
Described control circuit 1 adopts chip microcontroller, certainly, also can be realized by programmable logic controller (PLC) or other control circuits, and it all should be included in by in the determined protection domain of claims.
During use, described position sensor 3 and angular-rate sensor 4 are installed on the motor output shaft of described peristaltic pump, position sensor 3 and angular-rate sensor 4 send the signal that detects to described control circuit 1, described control circuit 1 sends a signal to motor-drive circuit 2 after the data that receive are compared, and the control peristaltic pump rotates.
Described position sensor 3 is used for the circumferential position of monitoring peristaltic pump pump shaft, described angular-rate sensor 4 is used for monitoring the magnitude of angular velocity of described peristaltic pump pump shaft, therefore for reaching this purpose, described position sensor 3 also can be installed on the pump shaft of described peristaltic pump with angular-rate sensor.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all in the art technical staff comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.

Claims (2)

1. a blood purification peristaltic pump control system comprises control circuit (1) and motor-drive circuit (2); The outfan of described control circuit (1) connects the input of described motor-drive circuit (2); It is characterized in that: the signal output part of the first input end link position sensor (3) of described control circuit (1); The signal output part of the second input joint angle velocity sensor (4) of described control circuit (1).
2. a kind of blood purification peristaltic pump control system as claimed in claim 1, it is characterized in that: described control circuit (1) is single-chip microcomputer.
CN 201220360385 2012-07-25 2012-07-25 Control system of peristaltic pump for blood purification Expired - Lifetime CN202682434U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220360385 CN202682434U (en) 2012-07-25 2012-07-25 Control system of peristaltic pump for blood purification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220360385 CN202682434U (en) 2012-07-25 2012-07-25 Control system of peristaltic pump for blood purification

Publications (1)

Publication Number Publication Date
CN202682434U true CN202682434U (en) 2013-01-23

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CN 201220360385 Expired - Lifetime CN202682434U (en) 2012-07-25 2012-07-25 Control system of peristaltic pump for blood purification

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CN (1) CN202682434U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102743803A (en) * 2012-07-25 2012-10-24 重庆山外山科技有限公司 Peristaltic pump control system for purifying blood and method thereof
CN105233363A (en) * 2015-08-28 2016-01-13 重庆工商职业学院 High-precision peristaltic pump control method
CN105587649A (en) * 2014-11-06 2016-05-18 保定申辰泵业有限公司 Novel operating method of peristaltic pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102743803A (en) * 2012-07-25 2012-10-24 重庆山外山科技有限公司 Peristaltic pump control system for purifying blood and method thereof
CN102743803B (en) * 2012-07-25 2015-01-28 重庆山外山科技有限公司 Peristaltic pump control system for purifying blood and method thereof
CN105587649A (en) * 2014-11-06 2016-05-18 保定申辰泵业有限公司 Novel operating method of peristaltic pump
CN105233363A (en) * 2015-08-28 2016-01-13 重庆工商职业学院 High-precision peristaltic pump control method
CN105233363B (en) * 2015-08-28 2018-12-25 重庆工商职业学院 high precision peristaltic pump control method

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C14 Grant of patent or utility model
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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Peristaltic pump control system for purifying blood and method thereof

Effective date of registration: 20130820

Granted publication date: 20130123

Pledgee: Chongqing Sanxia bank Limited by Share Ltd. New District Branch

Pledgor: Gao Guangyong|CHONGQING SHANWAISHAN SCIENCE & TECHNOLOGY Co.,Ltd.

Registration number: 2013990000593

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20150203

Granted publication date: 20130123

Pledgee: Chongqing Sanxia bank Limited by Share Ltd. New District Branch

Pledgor: Gao Guangyong|CHONGQING SHANWAISHAN SCIENCE & TECHNOLOGY Co.,Ltd.

Registration number: 2013990000593

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Peristaltic pump control system for purifying blood and method thereof

Effective date of registration: 20150205

Granted publication date: 20130123

Pledgee: Chongqing Sanxia bank Limited by Share Ltd. New District Branch

Pledgor: Gao Guangyong|CHONGQING SHANWAISHAN SCIENCE & TECHNOLOGY Co.,Ltd.

Registration number: 2015990000104

C56 Change in the name or address of the patentee
CB03 Change of inventor or designer information

Inventor after: Gao Guangyong

Inventor after: Tong Jin

Inventor after: Ren Yingxiang

Inventor before: Gao Guangyong

Inventor before: Tong Jin

Inventor before: Ren Yingxiang

Inventor before: Li Xihua

Inventor before: Lu Jizhen

Inventor before: Wang Yongqing

Inventor before: Xie Chuan

COR Change of bibliographic data
CP03 Change of name, title or address

Address after: The 401121 northern New District of Chongqing municipality Mount Huangshan Road No. 5 South Building Mercury Technology Development Center

Patentee after: SWS HEMODIALYSIS CARE CO.,LTD.

Address before: 401121, B building, mercury science building, No. 5 Mount Huangshan Avenue, North New District, Chongqing, Yubei District

Patentee before: CHONGQING SHANWAISHAN SCIENCE & TECHNOLOGY Co.,Ltd.

PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20160531

Granted publication date: 20130123

Pledgee: Chongqing Sanxia bank Limited by Share Ltd. New District Branch

Pledgor: SWS HEMODIALYSIS CARE CO.,LTD.

Registration number: 2015990000104

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PM01 Change of the registration of the contract for pledge of patent right

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Registration number: 2015990000104

Pledgor after: CHONGQING SHANWAISHAN SCIENCE & TECHNOLOGY Co.,Ltd.

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PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Peristaltic pump control system for purifying blood and method thereof

Effective date of registration: 20170310

Granted publication date: 20130123

Pledgee: Export Import Bank of China

Pledgor: SWS HEMODIALYSIS CARE CO.,LTD.

Registration number: 2017980000035

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CP02 Change in the address of a patent holder

Address after: 401123 Tzu Chi Road, Liangjiang New Area, Chongqing, No. 1

Patentee after: SWS HEMODIALYSIS CARE CO.,LTD.

Address before: The 401121 northern New District of Chongqing municipality Mount Huangshan Road No. 5 South Building Mercury Technology Development Center

Patentee before: SWS HEMODIALYSIS CARE CO.,LTD.

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