CN202146466U - Heparin pump with pipe diameter detecting structure - Google Patents
Heparin pump with pipe diameter detecting structure Download PDFInfo
- Publication number
- CN202146466U CN202146466U CN201120199616U CN201120199616U CN202146466U CN 202146466 U CN202146466 U CN 202146466U CN 201120199616 U CN201120199616 U CN 201120199616U CN 201120199616 U CN201120199616 U CN 201120199616U CN 202146466 U CN202146466 U CN 202146466U
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- heparin pump
- syringe
- screw mandrel
- pressure head
- panel
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Abstract
The utility model discloses a heparin pump with a pipe diameter detecting structure, comprising a protecting bush which guides the direction of acting force to be vertically downward, a screw rod which is connected with the protecting bush, a panel which is arranged at the lower end of the protecting bush, a fixing mechanism which is used for fixing a syringe on the panel and is fixedly arranged on the panel, a pressure head which is occluded with the screw rod, a detector which is used for detecting the working status of each group of optoelectronic switches and comprises at least one group of optoelectronic switches, and a controller which is used for recognizing the syringe according to the conducting state of each group of optoelectronic switches when syringes with different pipe diameters are used and is connected with the detector. By adopting the pipe diameter detecting structure, an injecting pipe is recognized by detecting the pipe diameter of the syringe through the pipe diameter detecting structure, so that the heparin pump can be matched with syringes with different models and specifications for use, and the heparin pump with the pipe diameter detecting structure has the advantages that the structure is simple, the operation is fast and convenient and the practical applicability is strong.
Description
Technical field
This utility model relates to the heparin pump in a kind of haemodialysis control unit, especially relates to a kind of caliber detection architecture that has, and discerns the heparin pump of syringe through the caliber that detects syringe.
Background technology
Heparin pump (Heparin Pump) is for the purpose of the independence in the haemodialysis control unit.The micro-injection pump that heparin pump is equivalent to use clinically is in order to continue injecting heparin in patient blood.Owing to contact with air in extracorporeal circulation in the blood dialysis, blood coagulation takes place easily, use heparin pump to prevent blood coagulation.Wherein, heparin is clinical anticoagulant commonly used, can prevent that blood from solidifying in external pipelines such as dialyser.
In recent years, also increasingly high along with the hemodialysis industry is fast-developing to the requirement of heparin pump, except basic function of use and warning function, also require simple and quick.At present, some heparin pump product adopts motor positive and inverse to regulate injection volume.
In addition, at present syringe has multiple model and specification, how can use with the syringe collocation of different model and specification separately on same heparin pump, has become one of technical barrier of current urgent need solution.
Summary of the invention
This utility model proposes a kind of heparin pump with caliber detection architecture, discerns syringe through the caliber that detects syringe, make heparin pump can with the syringe collocation use of different model and specification separately.
This utility model adopts following technical scheme to realize: a kind of heparin pump with caliber detection architecture comprises: active force is directed to sheath vertically downward; The screw mandrel that is connected with sheath; Be arranged on the panel of sheath lower end; Be used for syringe is fixed on the fixed mechanism on the panel, comprise pull bar, fixed block and spring, the wherein terminal fixed block that connects of pull bar, another terminal spring that connects; Pressure head with screw mandrel interlock setting; Be arranged on and be used to detect the detector of respectively organizing the photoswitch duty on the pull bar, it comprises at least one group of photoswitch; Respectively organize the controller of the conducting state identification syringe of photoswitch when being used for, its connection detector according to the syringe that uses different tube diameters.
In a preferred embodiment, pressure head is provided with a groove that is used for partly holding syringe center pillar handle beyond the Great Wall.
In a preferred embodiment, the heparin pump of said manual adjustments also comprises: be fixedly connected on the motor on the panel, its rotating shaft connects screw mandrel and drives the screw mandrel rotation through gear.
In a preferred embodiment, motor is biphase six line hybrid step motors, and the stepping angle is 1.8 °.
In a preferred embodiment, said heparin pump also comprises: pressure head is locked on the screw mandrel, and perhaps with the knob of pressure head release from the screw mandrel, knob connects pressure head.
Compared with prior art, the utlity model has following beneficial effect:
This utility model is through being provided with the caliber detection architecture; Detect the caliber of syringe by the caliber detection architecture and discern syringe; Heparin pump can be used with the syringe collocation of different model and specification separately; And be provided with and have the locking function knob, can the fixed position of free adjustment pressure head on screw mandrel, thus realization condition is provided for the syringe of packing into fast.The utlity model has simple in structure, swift and convenient to operate and practical advantage.
Description of drawings
Fig. 1 is the structural representation of this utility model;
Fig. 2 is the structural scheme of mechanism of caliber detection architecture;
Fig. 3 is the electrical connection sketch map of each element in the caliber detection architecture.
The specific embodiment
This utility model proposes a kind of heparin pump with caliber detection architecture, discerns syringe 4 through the caliber that detects syringe, make heparin pump can with the syringe 4 collocation uses of different model and specification separately.
Wherein, shown in dotted portion among Fig. 1, syringe 4 comprises: urceolus 41, and its bottom has liquid outlet, and the upper end is provided with annular shelves ring 411; Be set in the plunger 42 in the urceolus 41, its end is the handle 421 of diameter greater than the circle of plunger 42.
In conjunction with illustrated in figures 1 and 2, the heparin pump that this utility model proposes comprises: vertically disposed screw mandrel 12; Connect the sheath 11 that is arranged on screw mandrel 12 upper ends, sheath 11 is for making the effect guide rail vertically downward of pressure; Be socketed on the screw mandrel 12; With screw mandrel 12 interlocks and can depend on the pressure head 14 that screw mandrel 12 slides up and down; And a groove 141 is set on the pressure head 14; Handle 421 parts on the plunger 42 of syringe 4 are arranged at groove 141, drive plunger 42 by pressure head 14 pulling handles 421 and do piston motion up or down at urceolus 41; Connect the knob 13 of pressure head 14, be used for pressure head 14 is locked at screw mandrel 12, perhaps pressure head 14 release from the screw mandrel 12 is unclamped; Be connected the panel 16 of sheath 11 lower ends; Be arranged on and be used on the panel 16 syringe 4 is fixed on the fixed mechanism on the panel 16; This fixed mechanism comprises pull bar 151, fixed block 152 and spring 153; The one terminal fixed block 152 that connects of pull bar 151; Another terminal spring 153 that connects, fixed mechanism is used for drawing the position to being fixed on panel 16 syringe 4, makes it can gravitate and fall down; Be fixedly connected on the motor 17 on the panel 16, gear connection screw mandrel 12 is passed through in its rotating shaft, drives screw mandrel 12 rotations, drives pressure head 14 from moving down to following; Be arranged on the caliber detection architecture on the pull bar 151.
Wherein, panel 16 matching and fixing mechanisms and pressure head 14 be syringe 4 fixedly: handle 421 parts of plunger 42 are nested in the groove 141 on the pressure head 14, drive plunger 42 by pressure head 14 pulling handles 421 and do piston motion up or down at urceolus 41; Shelves ring 411 parts on the urceolus 41 are nested on the panel 16; And the pull bar 151 in the fixed mechanism spurs fixed block 152 towards the direction motion of drawing close panel 16 under the elastic force effect of spring 153, and urceolus 41 is fixed on the panel 16.
When needs are packed into when having the syringe 4 of injection; The available hands locking knob 13 that turns clockwise lightly; Move up and down pressure head 14 along sheath 11 and screw mandrel 12 directions then; Adjust to shelves ring 411 parts that suitable position is nested in the groove 141 on the pressure head 14, on the urceolus 41 handle 421 parts on the syringe 4 and be nested on the panel 16, external rotation locking knob 13 during another mistake is with pressure head 14 fixed position on screw mandrel 12 that is locked; So far, syringe 4 heparin pump of having packed into fast.
Then, motor 17 is started working, and rotates through gear drive screw mandrel 12, and pressure head 14 is moved downward, and sheath 11 is as the guide rail of exerting pressure to syringe 4, and the effect that makes pressure vertically downward.Handle 421 by on 14 pairs of plungers 42 of pressure head applies pressure from top to bottom, promotes plunger 42 and in urceolus 41, moves downward, and makes the injection in the syringe 4 be input in the body or pipeline.
In addition, motor 17 is that its rotation moves with fixed angle step by step, does not have cumulative error, can accomplish accurate control as the specific type of electric machine of control usefulness.In a preferred embodiment, what motor 17 was selected for use is biphase six line hybrid step motors, and the stepping angle is 1.8 °, cooperates motor-drive circuit 171 to control by Fig. 3 middle controller 184.
In conjunction with Fig. 2 and shown in Figure 3, in a preferred embodiment, heparin pump can detect the syringe 4 that caliber is 10ml, 20ml and three kinds of specifications of 30ml.In this embodiment, the caliber detection architecture specifically comprises: be arranged on the detector 183 on the pull bar 151, it comprises first group of photoswitch 181 and second group of photoswitch 182; Detector 183 is used to detect first group of photoswitch 181 and second group of photoswitch 182 duty; The controller 184 of connection detector 183.
When heparin pump is loaded onto caliber and is the syringe 4 of 10ml; Because of syringe 4 calibers little; First group of photoswitch 181 and second group of photoswitch 182 are all blocked by pull bar 151, and detector 183 detections this moment send pulse signals also can not for controller 184 less than any signal.
When heparin pump is loaded onto caliber and is the syringe 4 of 20ml; Because of syringe 4 calibers increase; Pull bar 151 need move from right direction to a left side in Fig. 2, and first group of photoswitch 181 still blocked by pull bar 151, and second group of photoswitch 182 conducting; This moment, detector 183 detected second group of photoswitch 182 Continuity signal, sent pulse signal to controller 184 and sent a pulse.
When heparin pump is loaded onto caliber and is the syringe 4 of 30ml; Because of syringe 4 calibers big; First group of photoswitch 181 and second group of photoswitch 182 are not all stopped by pull bar 151; This moment, detector 183 detected first group of photoswitch 181 and second group of photoswitch 182 Continuity signal respectively, sent pulse signal to controller 184 and sent two pulse signals.
Therefore, controller 184 is judged the syringe 4 of three kinds of different calibers respectively through the pulse signal that detector under three kinds of different state 183 sends.
Certainly, can discern the more syringe 4 of multitube footpath kind in order to make heparin pump, can increase one or more groups photoswitch, its operation principle is all identical in the foregoing description, no longer enumeration.
The above is merely the preferred embodiment of this utility model; Not in order to restriction this utility model; Any modification of being done within all spirit and principles at this utility model, be equal to replacement and improvement etc., all should be included within the protection domain of this utility model.
Claims (6)
1. heparin pump with caliber detection architecture, said heparin pump comprises: active force is directed to sheath (11) vertically downward; The screw mandrel (12) that is connected with sheath (11); Be arranged on the panel (16) of sheath (11) lower end; Be used for syringe (4) is fixed on the fixed mechanism on the panel (16), comprise pull bar (151), fixed block (152) and spring (153), the wherein terminal fixed block (152) that connects of pull bar (151), another terminal spring (153) that connects; Pressure head (14) with screw mandrel (12) interlock setting; It is characterized in that said heparin pump also comprises: be arranged on and be used to detect the detector (183) of respectively organizing the photoswitch duty on the pull bar (151), it comprises at least one group of photoswitch; Respectively organize the controller (184) of the conducting state identification syringe (4) of photoswitch when being used for, its connection detector (183) according to the syringe (4) that uses different tube diameters.
2. according to the said heparin pump of claim 1, it is characterized in that pressure head (14) is provided with one and is used for the groove (141) that part is held the handle (421) on syringe (4) plunger (42) with caliber detection architecture.
3. according to the said heparin pump with caliber detection architecture of claim 1, it is characterized in that, also comprise: be fixedly connected on the motor (17) on the panel (16), its rotating shaft connects screw mandrel (12) and drives screw mandrel (12) rotation through gear.
4. according to the said heparin pump of claim 3, it is characterized in that motor (17) is biphase six line hybrid step motors with caliber detection architecture.
5. according to the said heparin pump of claim 4, it is characterized in that the stepping angle of motor (17) is 1.8 ° with caliber detection architecture.
6. according to any one said heparin pump of claim 1-5 with caliber detection architecture; It is characterized in that; Said heparin pump also comprises: pressure head (14) is locked on the screw mandrel (12); Perhaps with pressure head 14) go up the knob (13) of release from screw mandrel (12), knob (13) connects pressure head (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120199616U CN202146466U (en) | 2011-06-15 | 2011-06-15 | Heparin pump with pipe diameter detecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120199616U CN202146466U (en) | 2011-06-15 | 2011-06-15 | Heparin pump with pipe diameter detecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202146466U true CN202146466U (en) | 2012-02-22 |
Family
ID=45587545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120199616U Expired - Fee Related CN202146466U (en) | 2011-06-15 | 2011-06-15 | Heparin pump with pipe diameter detecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202146466U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103830785A (en) * | 2012-11-20 | 2014-06-04 | 广州市暨华医疗器械有限公司 | Heparin pump |
| CN107982588A (en) * | 2017-11-28 | 2018-05-04 | 重庆山外山血液净化技术股份有限公司 | Blood purification anticoagulant pump |
-
2011
- 2011-06-15 CN CN201120199616U patent/CN202146466U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103830785A (en) * | 2012-11-20 | 2014-06-04 | 广州市暨华医疗器械有限公司 | Heparin pump |
| CN107982588A (en) * | 2017-11-28 | 2018-05-04 | 重庆山外山血液净化技术股份有限公司 | Blood purification anticoagulant pump |
| CN107982588B (en) * | 2017-11-28 | 2024-04-12 | 重庆山外山血液净化技术股份有限公司 | Anticoagulation pump for blood purification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20200615 |