CN202223618U - Hospital-grade breast pumping device with wide negative pressure range - Google Patents
Hospital-grade breast pumping device with wide negative pressure range Download PDFInfo
- Publication number
- CN202223618U CN202223618U CN2011202715227U CN201120271522U CN202223618U CN 202223618 U CN202223618 U CN 202223618U CN 2011202715227 U CN2011202715227 U CN 2011202715227U CN 201120271522 U CN201120271522 U CN 201120271522U CN 202223618 U CN202223618 U CN 202223618U
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- China
- Prior art keywords
- air chamber
- chamber slide
- negative pressure
- piston
- crank
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- 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 - Fee Related
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Abstract
A hospital-grade breast pumping device with a wide negative pressure range is disclosed, which comprises a case, a stepper motor, an air chamber slide barrel, a crank, a rocker, a piston, a milk collection bottle and a covering cup, wherein one end of the crank is fixedly connected with the rotary shaft of the stepper motor in a transmission way; the front end of the air chamber slide barrel is connected with the case via a fulcrum shaft, and the air chamber slide barrel can rotate around the fulcrum shaft; one end of the rocker is movably connected with the other end of the crank, and the other end of the rocker is fixedly connected with the piston; the piston is disposed in the air chamber slide barrel and movably and hermetically connected with the air chamber slide barrel; a suction tube joint is disposed at the front end of the air chamber slide barrel, and the suction tube joint is connected with the milk collection bottle via a hose; the milk collection bottle is further connected with the covering cup via a hose; and an exhaust hole is disposed on the rear part of the air chamber slide barrel. The hospital-grade breast pumping device with a wide negative pressure range disclosed by the utility model efficiently expands the negative pressure adjustment range which can achieve minus 100 mH to minus 300 mmHg, and any level of negative pressure adjustment can be realized in the negative pressure range; and the processes of sucking, stopping and releasing of an infant while sucking breast milk can be completely simulated.
Description
Technical field
This utility model relates to the articles for daily use, and particularly a kind of wide range of negative pressure hospital level is inhaled newborn device.
Background technology
The humalactor of hospital's level department of obstetrics and gynecology use at present is to produce negative pressure through machinery, sucks out mother's milk with negative pressure.Range of negative pressure realizes through the sealing of adjustments of gas path.
Mode with negative pressure produces suction, draws colostrum, existing related patent U.S. Patent No..Provide the underbalance pulse formula like patent 200820022323.0 and inhaled newborn mode; Patent 200620054035.4 adopts electromagnetic valve, group Pu and control circuit to constitute electric breast pump.But the suction of these patent reports breast range of negative pressure mostly-below the 250mmHg, can not simulate the baby fully and inhale " suction ", " stopping " of breast, the process of " putting ".
The utility model content
The purpose of this utility model exactly in order to solve the problems referred to above that prior art exists, provides a kind of wide range of negative pressure hospital level to inhale newborn device.
To achieve these goals; This utility model has adopted following technical scheme: a kind of wide range of negative pressure hospital level is inhaled newborn device; Comprise cabinet, motor, air chamber slide cartridge, crank, rocking bar, piston, collection feeding bottle and cup; Motor is installed in the cabinet, and the rotating shaft of motor is stretched out from the sidewall of cabinet, and air chamber slide cartridge, crank, rocking bar, piston, collection feeding bottle and cup all are arranged on outside the cabinet; Wherein, an end of crank links to each other with the rotating shaft fixed conveyor of motor, and the front end of air chamber slide cartridge links to each other with cabinet through a fulcrum, and the air chamber slide cartridge can rotate around fulcrum; One end of rocking bar and the other end of crank are movably connected, and the other end and the piston of rocking bar are fixedly linked, and piston is arranged in the air chamber slide cartridge and with air chamber slide cartridge movable sealing and links to each other; Front end at the air chamber slide cartridge is provided with suction attachment, and suction attachment links to each other with the collection feeding bottle through flexible pipe, and the collection feeding bottle also links to each other with cup through flexible pipe, is provided with steam vent at the rear portion of air chamber slide cartridge.
Described motor is two four-wire system motors, through its rotational angular of controller control.
Described steam vent is arranged on the inboard of the intake stroke terminal point of piston.
The total stroke length of described piston is the twice of crank length, and when piston was in start of a run or final position, crank and rocking bar were on same straight line.
The wide range of negative pressure hospital level of this utility model is inhaled newborn device; Owing to adopted above technical scheme; Effectively enlarged the negative pressure range of accommodation; Can reach-100mH～-300mmHg, can realize that in this range of negative pressure the negative pressure of any class is regulated, and can simulate baby's " suction ", " stopping ", " putting " process when sucking breast milk fully.
Description of drawings
Fig. 1 is the frame for movement sketch map of this utility model;
Fig. 2 is the sketch map of two extreme positions of Fig. 1;
Fig. 3 is the control system block diagram;
Fig. 4 is step motor drive and rotating speed control figure.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment this utility model is elaborated.
Referring to Fig. 1, Fig. 2; The wide range of negative pressure hospital level of this utility model is inhaled newborn device; Comprise cabinet 1, motor 2, air chamber slide cartridge 3, crank 4, rocking bar 5, piston 6, collection feeding bottle 7 and cup 8; Motor 2 is installed in the cabinet 1, and the rotating shaft of motor 2 is stretched out from the sidewall of cabinet, and air chamber slide cartridge 3, crank 4, rocking bar 5, piston 6, collection feeding bottle 7 and cup 8 all are arranged on outside the cabinet 1; Wherein, an end of crank 4 links to each other with the rotating shaft fixed conveyor of motor 2, and the front end of air chamber slide cartridge 3 links to each other with cabinet 1 through a fulcrum, and air chamber slide cartridge 3 can rotate around fulcrum; One end of rocking bar 5 and the other end of crank 4 are movably connected, and the other end of rocking bar 5 and piston 6 are fixedly linked, and piston 6 is arranged in the air chamber slide cartridge 3 and with air chamber slide cartridge movable sealing and links to each other; Front end at air chamber slide cartridge 3 is provided with suction attachment 31, and suction attachment 31 links to each other with collection feeding bottle 7 through flexible pipe, and collection feeding bottle 7 also links to each other with cup 8 through flexible pipe, is provided with steam vent 32 at the rear portion of air chamber slide cartridge 3.Steam vent 32 is arranged on the inboard of the intake stroke terminal point of piston 6.
The total stroke length of the piston 6 in this utility model is twices of crank 4 length, and when piston was in start of a run or final position, crank 4 and rocking bar 5 were on same straight line.
Motor in this utility model is two four-wire system motors, through its rotational angular of controller control.Fig. 3 is the Stepping Motor Control system block diagram; Fig. 4 is the driving and the rotating speed control figure of motor.
The work process principle accompanying drawings of this utility model is following:
Motor 2 in this utility model is installed in the cabinet 1; The rotating shaft of motor 2 is stretched out from the sidewall of cabinet; One end of crank 4 links to each other with the rotating shaft fixed conveyor of motor 2, and the front end of air chamber slide cartridge 3 links to each other with cabinet 1 through a fulcrum, and air chamber slide cartridge 3 can rotate around fulcrum; Make the air chamber slide cartridge 3 can be around the fulcrum O shown in Fig. 1
2Rotate.It is that the crank 4 of r is with angular velocity omega that the rotating shaft of motor 2 drives length
1Carry out 360 ° of revolutions, so still be the generation that turning anticlockwise does not influence negative pressure extremely clockwise; Rotating crank 4 drives air chamber slide cartridge 3 around fulcrum O
2With angular velocity omega
2, angular acceleration
2Do the swing of certain angle; It is L that rotating crank 4 also drives length
2Rocking bar 5 and piston 6 do around fulcrum O
2Swing and the resultant motion of moving along the axis of rocking bar 5, the volume of gases will change in the air chamber slide cartridge 3 like this.When rocking bar 5 and piston 6 done away from fulcrum O
2Motion when promptly aspirating, in air chamber slide cartridge 3, just produce certain negative pressure, the simulation baby sucks the process of " suction " of breast milk; And do near fulcrum O when rocking bar 5 and piston 6
2Motion when promptly compressing, in air chamber slide cartridge 3, just produce certain malleation, the simulation baby sucks the process of breast milk " putting ".Obviously, the angular velocity omega of the size of negative pressure, malleation and motor
1, the length r of crank, the inside diameter D of air chamber slide cartridge 3 and stroke (being the stroke of the piston) L of rocking bar 5
1(left and right sides extreme position length among Fig. 2 poor) is relevant.Under the situation that the inside diameter D of crank length r, air chamber slide cartridge 3 is selected, the stroke of rocking bar 5 (being the stroke of piston) L
1Should be 2 times of crank length r, like this size of negative pressure just only with the angular velocity omega of motor 2
1Relevant, can go out the shaft angle rotational speed omega through what regulate motor
1, reach the purpose of regulating vacuum magnitude.Be more cleverly; A steam vent 32 has been opened on the left side at rocking bar 5 and piston 6 intake stroke terminal points; When rocking bar 5 and piston 6 reach the intake stroke terminal point, make the pressure inside and outside the air chamber reach balance through steam vent 32 again, thereby realized that the simulation baby sucks the process that mother's nipple " stops ".Like this, utilize negative pressure, malleation and steam vent, just realized fully that the simulation baby sucks the process of mother's nipple " inhale, stop, put ".In Fig. 2, P
1Be compression travel extreme position, P
2Being the intake stroke extreme position, also is to produce the maximum position of negative pressure; And L
1Be exactly the distance between these two extreme limit of travel positions, its size is the twice of crank length r (being the radius of turn of crank).
This utility model covers on cup 8 on people's the nipple in use, sets range of negative pressure, and starter motor then can be accomplished the process of " inhale, stop, put " in the range of negative pressure of setting, and the milk of sucking-off is collected in the collection feeding bottle 7.
Fig. 3 is the motor angular velocity omega
1Control principle figure.In the figure, MCU is a single-chip microcomputer, accepts negative pressure and " increases " button and negative pressure and " subtract " press button control; Realize changing the output pulse width or the purpose in cycle through MCU; This pulse is the count pulse that the micro-stepping driving of stepping motor device is realized the pulse segmentation, so just can realize changing the purpose of motor angular velocity indirectly, and negative pressure " increases " or the amount of " subtracting "; Just the class of vacuum magnitude is presented on the LCD liquid crystal display screen; Whether buzzer is used for instruction button and is pressed; Power module such as regulates be responsible for for single-chip microprocessor MCU, LCD display, buzzer, negative pressure to draw on the button at power supply, also to the micro-stepping driving of stepping motor device power supply is provided simultaneously.Can be clear that the flow direction and the control of power supply stream, signal flow and control stream among the figure.
Fig. 4 is the situation that is connected of micro-stepping driving of stepping motor device and motor.What motor adopted is two four line motors, and what stepper motor driver adopted is 24V direct current supply, input signal photoelectricity is isolated, altogether positive formula pulse interface.The count pulse CP of micro-stepping driving of stepping motor device is from single-chip microcomputer, and DIR is the control of motor rotation direction, and high level is that clockwise direction rotates, Enable Pin ENA is that high level enables; Two four lines of motor are respectively A+, A-, B+ and B-.
Claims (4)
1. one kind wide range of negative pressure hospital level is inhaled newborn device; It is characterized in that: comprise cabinet, motor, air chamber slide cartridge, crank, rocking bar, piston, collection feeding bottle and cup; Motor is installed in the cabinet; The rotating shaft of motor is stretched out from the sidewall of cabinet, and air chamber slide cartridge, crank, rocking bar, piston, collection feeding bottle and cup all are arranged on outside the cabinet; Wherein, an end of crank links to each other with the rotating shaft fixed conveyor of motor, and the front end of air chamber slide cartridge links to each other with cabinet through a fulcrum, and the air chamber slide cartridge can rotate around fulcrum; One end of rocking bar and the other end of crank are movably connected, and the other end and the piston of rocking bar are fixedly linked, and piston is arranged in the air chamber slide cartridge and with air chamber slide cartridge movable sealing and links to each other; Front end at the air chamber slide cartridge is provided with suction attachment, and suction attachment links to each other with the collection feeding bottle through flexible pipe, and the collection feeding bottle also links to each other with cup through flexible pipe, is provided with steam vent at the rear portion of air chamber slide cartridge.
2. wide range of negative pressure as claimed in claim 1 hospital level is inhaled newborn device, and it is characterized in that: described motor is two four-wire system motors, through its rotational angular of controller control.
3. wide range of negative pressure as claimed in claim 1 hospital level is inhaled newborn device, and it is characterized in that: described steam vent is arranged on the inboard of the intake stroke terminal point of piston.
4. wide range of negative pressure as claimed in claim 1 hospital level is inhaled newborn device, and it is characterized in that: the total stroke length of described piston is the twice of crank length, and when piston was in start of a run or final position, crank and rocking bar were on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202715227U CN202223618U (en) | 2011-07-28 | 2011-07-28 | Hospital-grade breast pumping device with wide negative pressure range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202715227U CN202223618U (en) | 2011-07-28 | 2011-07-28 | Hospital-grade breast pumping device with wide negative pressure range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202223618U true CN202223618U (en) | 2012-05-23 |
Family
ID=46074229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202715227U Expired - Fee Related CN202223618U (en) | 2011-07-28 | 2011-07-28 | Hospital-grade breast pumping device with wide negative pressure range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202223618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895708A (en) * | 2011-07-28 | 2013-01-30 | 上海理工大学 | Hospital grade breast pump device with wide negative pressure range |
-
2011
- 2011-07-28 CN CN2011202715227U patent/CN202223618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895708A (en) * | 2011-07-28 | 2013-01-30 | 上海理工大学 | Hospital grade breast pump device with wide negative pressure range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20120728 |