CN203123138U - Heparin pump with blocking and detecting functions - Google Patents
Heparin pump with blocking and detecting functions Download PDFInfo
- Publication number
- CN203123138U CN203123138U CN 201220614525 CN201220614525U CN203123138U CN 203123138 U CN203123138 U CN 203123138U CN 201220614525 CN201220614525 CN 201220614525 CN 201220614525 U CN201220614525 U CN 201220614525U CN 203123138 U CN203123138 U CN 203123138U
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- CN
- China
- Prior art keywords
- contiguous block
- heparin pump
- nut
- detection
- stopping
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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 - Lifetime
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Abstract
The utility model discloses a heparin pump with blocking and detecting functions. The heparin pump with the blocking and detecting functions at least comprises a push rod of an injector, a sliding block connection block, a step motor, a control circuit board of the step motor, a lead screw, a lead screw nut and a baffle, wherein the push rod of the injector is corporately used with the heparin pump; the sliding block connection block is fixedly connected with the push rod and is arranged on the guide rail, and the guide rail is fixed on a side plate of a frame; the step motor and the control circuit board of the step motor are installed on a motor installment plate of the frame; one tail end of the lead screw is directly connected with a drive shaft of the step motor, and the other tail end of the lead screw is connected with a supporting sleeve in a supporting mode; the lead screw nut is connected on a lead screw in a threaded mode and is fixed on a nut connection block, and a spring with preset pressure is compressed in an inner hole of the sliding block connection block by the nut connection block; and the baffle is fixed on the nut connection block, and a detection device used for blocking or no-liquid detecting is fixed on the sliding block connection block. The heparin pump with the blocking and detecting functions is simple in structure and good in reliability.
Description
Technical field
This utility model relates to a kind of heparin pump, especially relates to a kind of heparin pump with the detection of stopping up.
Background technology
Heparin pump is a vitals in the haemodialysis control unit, and the micro-injection pump that heparin pump is equivalent to use clinically is in order to continue injecting heparin in the patient blood.Because blood contacts with air in extracorporeal circulation in the dialysis procedure, and blood coagulation takes place easily, use heparin to prevent blood coagulation.Wherein heparin is clinical anticoagulant commonly used, can prevent that blood from solidifying in external pipeline.
In recent years, along with the fast development of hemodialysis is also more and more higher to the requirement of heparin pump.Blood purification generally adopts the mode of gear drive or band transmission to drive with heparin pump at present, the deficiency that these kinds of drive exist is complex structure, parts are numerous, the defective that reliability is not high, and main is not have or be difficult to realize functions such as obstruction, empty liquid warning.
The utility model content
Technical problem to be solved in the utility model be to provide a kind of simple and reliable for structure and have obstruction, empty liquid detects and the heparin pump of warning function.
This utility model adopts following technical scheme to realize: a kind of heparin pump with the detection of stopping up comprises at least: for the push rod of the syringe that directly promotes to be used with heparin pump; Slide block contiguous block with push rod is fixedly linked be arranged on the guide rail, and guide rail is fixed on the side plate of frame; Be installed in motor and control circuit board thereof on the motor mounting plate of frame; One end directly is connected with the driving shaft of motor, another is terminal and the screw mandrels support set support and connection; Be screwed together feed screw nut on screw mandrel, and the feed screw nut is fixed on the nut contiguous block, and the nut contiguous block is compressed in the endoporus of slide block contiguous block by the spring that axial back-up ring will have a preset pressure; At the nut contiguous block baffle plate is arranged fixedly, be fixed with for the checkout gear that stops up or empty liquid detects at the slide block contiguous block.
Wherein, have detent at baffle plate, be provided with corresponding tongue at the nut contiguous block, and tongue is fixed among the detent.
Wherein, the photoswitch of checkout gear for being used with the end of baffle plate.
Wherein, also comprise: when being used for end at baffle plate and stretching among the photoswitch, the alarm device of alarm signal is sent in controlled circuit board control, and this alarm device connects control circuit board.
Wherein, alarm device is luminous or microphone device.
Wherein, alarm device is flash lamp or loudspeaker.
Wherein, adopt the seam structure that is located by connecting between motor and the motor mounting plate.
Wherein, have the gap between the end of support set and leading screw, and be over-surplus fit structure between the back plate of support set and frame.
Wherein, the end of leading screw is equipped with the coding disk for detection of rotary speed.
Wherein, offer a fixing hole at the nut contiguous block, the steady pin of slide block contiguous block inserts in the fixing hole of nut contiguous block.
Compared with prior art, the utlity model has following beneficial effect:
The simple structure of using the heparin pump that the utility model proposes realizes stopping up and empty liquid is reported to the police, when if obstruction or empty liquid take place, push rod pushes away motionless syringe, push rod and slide block contiguous block are rigidly connected, the slide block contiguous block is also motionless, and motor is contained in the baffle plate on the nut contiguous block rotating drive nut contiguous block compression spring, trigger the photoelectric switching signal on the slide block contiguous block, thereby realize reporting to the police.In addition, this utility model is simple in structure, reliability is preferable.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cross section view among Fig. 1.
The specific embodiment
In conjunction with illustrated in figures 1 and 2, the utility model proposes a kind of simple and reliable for structure, have obstruction, empty liquid and detect heparin pump with warning function, itself and syringe 2 are used.
Specifically, the heparin pump that the utility model proposes comprises: shell 23; Be fixed on frame in the shell 23 by screw, frame is made up of motor mounting plate 15, back plate 21, side plate 16 and base plate 17; Rack-mounted motor transmission system, this motor transmission system comprises motor 4 and control circuit board thereof, screw mandrel 11 and feed screw nut 10, motor 4 is fixedly mounted on the motor mounting plate 15 by a plurality of screws, and in order to adopt the seam structure that is located by connecting between the accurate motor 4 of axial location and the motor mounting plate 15, one end of screw mandrel 11 directly is connected with the driving shaft of motor 4, another of leading screw 11 is terminal by support set 14 support and connection, support set 14 has certain clearance with leading screw 11, and be over-surplus fit structure between support set 14 and the back plate 21, driving shaft driven rotary by motor 4, and feed screw nut 10 is screwed together on screw mandrel 11, and relatively moves with being rotated on the screw mandrel 11 of leading screw 11; Leading screw 11 ends also are equipped with the coding disk 22 for detection of rotary speed; Be screwed the guide rail 19 on side plate 16, on guide rail 19, fix a slide block contiguous block 7 that slides at guide rail 19 by screw; Feed screw nut 10 is fixed on the nut contiguous block 6 by a plurality of screws, and nut contiguous block 6 is compressed in spring 9 in slide block contiguous block 7 endoporus by axial back-up ring 5, and spring 9 is pressed with certain pressure in advance; Baffle plate 20 is fixedly arranged on the nut contiguous block 6, photoswitch 8 is fixedly arranged on the slide block contiguous block 7; For accurate positioning, have detent 201 at baffle plate 20, corresponding tongue 61 is arranged on the nut contiguous block 6, tongue 61 is fixed among the detent 201; And an end of slide block contiguous block 7 fixedly has push rod 1, push rod 1 direct pushing syringe 2.
And, rotate centered by screw mandrel 11 in order to prevent nut contiguous block 6, offer a fixing hole at nut contiguous block 6, the steady pin 71 on the slide block contiguous block 7 inserts in the fixing hole of nut contiguous block 6.
Operation principle of the present utility model is as follows: by the rotation of motor 4 rotating band movable wire bars 11, produce relative translation and be screwed between feed screw nut 10 on the screw mandrel 11 and the screw mandrel 11; Because feed screw nut 10 and nut contiguous block 6 are for rigidly fixing, so 6 and then feed screw nut 10 translations in the same way of nut contiguous block; Nut contiguous block 6 links to each other with slide block contiguous block 7 by spring 9, because motive force is not enough to compress spring 9, thus slide block contiguous block 7 and push rod 1 and then translation in the same way, thus make push rod 1 drive syringe 2 motions.
Therefore, by the direction of rotation of control circuit board change motor 4, can change the direction of rotation of screw mandrel 11, and then change the direction of advance of push rod 1, convenient and swift during mounting of syringe 2.
In addition, only need change the pulse frequency of drive stepping motor 4 by control circuit board, just can change the rotary speed of motor 4, and then change heparin injection speed in the syringe 2, thereby realize fast injection heparin and slow injection heparin function.
Moreover because motor 4 rotating band movable wire stem nuts 10 advance, feed screw nut 10 rigidly fixes with nut contiguous block 6, so nut contiguous block 6 follows feed screw nut 10 to advance, nut contiguous block 6 links to each other with slide block contiguous block 7 by spring.At this moment, when if syringe 2 generation obstructions or empty liquid have taken place, push rod 1 does not promote syringe 2, slide block contiguous block 7 is static, and nut contiguous block 6 compression springs 9 advance, the end of baffle plate 20 stretches among the photoswitch 8, makes control circuit board can't detect the photosignal of photoswitch 8, sends alarm signal thereby trigger alarm device.
Wherein, alarm device can be for any luminous or microphone device, such as flash lamp, loudspeaker etc.
To sum up, the simple structure of using the heparin pump that the utility model proposes realizes stopping up and empty liquid is reported to the police, when if obstruction or empty liquid take place, push rod pushes away motionless syringe, and push rod and slide block contiguous block are rigidly connected, and the slide block contiguous block is also motionless, motor is rotating drive nut contiguous block compression spring, be contained in the baffle plate on the nut contiguous block, trigger the photoswitch on the slide block contiguous block, thereby realize reporting to the police.
The above only is preferred embodiment of the present utility model; not in order to limit this utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. the heparin pump with the detection of stopping up is characterized in that, comprises at least: for the push rod of the syringe that directly promotes to be used with heparin pump; Slide block contiguous block with push rod is fixedly linked be arranged on the guide rail, and guide rail is fixed on the side plate of frame; Be installed in motor and control circuit board thereof on the motor mounting plate of frame; One end directly is connected with the driving shaft of motor, another is terminal and the screw mandrels support set support and connection; Be screwed together feed screw nut on screw mandrel, and the feed screw nut is fixed on the nut contiguous block, and the nut contiguous block is compressed in the endoporus of slide block contiguous block by the spring that axial back-up ring will have a preset pressure; At the nut contiguous block baffle plate is arranged fixedly, be fixed with for the checkout gear that stops up or empty liquid detects at the slide block contiguous block.
2. according to the described heparin pump with the detection of stopping up of claim 1, it is characterized in that, have detent at baffle plate, be provided with corresponding tongue at the nut contiguous block, and tongue is fixed among the detent.
3. according to the described heparin pump with the detection of stopping up of claim 1, it is characterized in that the photoswitch that checkout gear is used for the end with baffle plate.
4. have a heparin pump that stop up to detect according to claim 1 is described, it is characterized in that, also comprise: when being used for end at baffle plate and stretching among the photoswitch, the alarm device of alarm signal is sent in controlled circuit board control, and this alarm device connects control circuit board.
5. according to the described heparin pump with the detection of stopping up of claim 4, it is characterized in that alarm device is luminous or microphone device.
6. according to the described heparin pump with the detection of stopping up of claim 5, it is characterized in that alarm device is flash lamp or loudspeaker.
7. any one describedly has the heparin pump that stop up to detect according to claim 1-6, it is characterized in that, adopts the seam structure that is located by connecting between motor and the motor mounting plate.
8. according to any one described heparin pump with the detection of stopping up of claim 1-6, it is characterized in that having the gap between the end of support set and leading screw, and be over-surplus fit structure between the back plate of support set and frame.
9. according to any one described heparin pump with the detection of stopping up of claim 1-6, it is characterized in that the end of leading screw is equipped with the coding disk for detection of rotary speed.
10. according to any one described heparin pump with the detection of stopping up of claim 1-6, it is characterized in that offer a fixing hole at the nut contiguous block, the steady pin of slide block contiguous block inserts in the fixing hole of nut contiguous block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614525 CN203123138U (en) | 2012-11-20 | 2012-11-20 | Heparin pump with blocking and detecting functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614525 CN203123138U (en) | 2012-11-20 | 2012-11-20 | Heparin pump with blocking and detecting functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203123138U true CN203123138U (en) | 2013-08-14 |
Family
ID=48931172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220614525 Expired - Lifetime CN203123138U (en) | 2012-11-20 | 2012-11-20 | Heparin pump with blocking and detecting functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203123138U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854101A (en) * | 2016-03-22 | 2016-08-17 | 重庆市澳凯龙医疗器械研究有限公司 | Intelligent heparin pushing injector used for CRRT (continuous renal replacement therapy) machine |
| CN110681040A (en) * | 2019-11-08 | 2020-01-14 | 常州市第一人民医院 | Department of respiration is with device of can deepening dosing |
-
2012
- 2012-11-20 CN CN 201220614525 patent/CN203123138U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854101A (en) * | 2016-03-22 | 2016-08-17 | 重庆市澳凯龙医疗器械研究有限公司 | Intelligent heparin pushing injector used for CRRT (continuous renal replacement therapy) machine |
| CN110681040A (en) * | 2019-11-08 | 2020-01-14 | 常州市第一人民医院 | Department of respiration is with device of can deepening dosing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
|
| CX01 | Expiry of patent term |