CN208641441U - A kind of syringe pump survey pressure and anti-self-flow device - Google Patents
A kind of syringe pump survey pressure and anti-self-flow device Download PDFInfo
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- CN208641441U CN208641441U CN201721552350.4U CN201721552350U CN208641441U CN 208641441 U CN208641441 U CN 208641441U CN 201721552350 U CN201721552350 U CN 201721552350U CN 208641441 U CN208641441 U CN 208641441U
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- syringe
- pressure
- extension tube
- syringe pump
- operable valve
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Abstract
The utility model discloses a kind of syringe pumps to survey pressure and anti-self-flow device, it is related to medical transfusion control technology field, it includes syringe pump, the pushing hands being mounted on syringe pump, drives the syringe pushed, the infusion extension tube being connected with syringe and the syringe needle being mounted in extension tube by syringe pump, further includes having the pressure operable valve for preventing the medical fluid in extension tube positioned at syringe needle one end to be back in syringe being mounted in extension tube and the pressure monitoring device for measuring vein pressure；Compared with prior art, the advantageous effects that this programme has are as follows: this programme is by sealing in pressure operable valve and pressure monitoring device in syringe extension tube, so that the injecting liquid drug speed in extension tube is more steady, medical fluid back suction risk is reduced, measurement patient's vein pressure is also more accurate.
Description
Technical field
The utility model relates to medical transfusion control technology fields, and in particular to a kind of syringe pump survey pressure and anti-gravity flow dress
It sets.
Background technique
Syringe pump is a kind of medical injection device, is made of stepper motor and its driver, lead screw and bracket etc., is had past
Lead screw, the nut moved again, therefore also referred to as lead screw pumps.It can be accurate, micro, consistent by a small amount of medical fluid using it
It is pumped into patient's body, convenient, timing is operated, quantifies, drug concentration and speed can be adjusted at any time according to state of an illness needs in use process
Degree, drug are able to maintain effective blood drug concentration in patient's body.With micro-injection pump critical, it can effectively mitigate shield
Scholar's workload improves working efficiency, and can accurately, safely and effectively cooperate doctor's rescue work.In clinical use, syringe pump
It needs using corresponding syringe and extension tube consumptive material.
Referring to shown in attached Fig. 1 and 2, attached drawing 1 is existing syringe pump apparatus structural schematic diagram, and Fig. 2 is the silk inside syringe pump
Thick stick matches the structural schematic diagram of transmission with screw.Existing syringe pump apparatus includes syringe pump 3 ', syringe 2 ', extension tube
1 ', pushing hands 4 ', syringe needle 5 ', lead screw 6 ' and screw 7 ', the clamping syringe 2 ' on syringe pump 3 ', the front end connection of syringe 2 '
Extension tube 1 ', 1 ' connecting needle 5 ' of extension tube are equipped with pushing hands 4 ' in 3 ' outside of syringe pump, and pushing hands 4 ' connects screw inside syringe pump
7 ', screw 7 ' is matched with lead screw 6 ', is moved along a straight line by the rotational movement screw 7 ' of lead screw 6 ', to push syringe
Medical fluid is injected patient's body through extension tube 1 ' and syringe needle 5 ' by 2 '.
In the above-mentioned course of work, since screw-nut itself there is processing gap in transmission engagement process, so
When patient's end position is higher than syringe, patient end medical fluid pressure will be greater than medical fluid pressure in syringe, to push
Syringe push handle counter motion, so that medical fluid back suction re-injection emitter；And when patient's end position is lower than syringe, patient end
Medical fluid pressure will be less than medical fluid pressure in syringe and can thus to inject to will drive the movement of syringe push handle
Pump work process Chinese medicine liquid flow speed wave moves larger, and to patient safety, there may be certain risks.
Summary of the invention
In view of the deficiencies in the prior art, pressure is surveyed the purpose of this utility model is to provide a kind of syringe pump and prevent certainly
Device is flowed, which surveys pressure and anti-self-flow device can increase syringe pump course of work Chinese medicine liquid flow speed stability, reduces medicine
Liquid back suction risk, so that injection pump work is more safe and reliable, while can also precise measurement Venous Blood pressure.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of syringe pump surveys pressure and anti-self-flow device comprising syringe pump, the pushing hands being mounted on the syringe pump, by institute
It states syringe pump and drives syringe, the infusion extension tube being connected with the syringe and the needle being mounted in extension tube pushed
Head further includes having to be mounted in extension tube to be used to that the medical fluid in extension tube positioned at described syringe needle one end to be prevented to be back to the note
Pressure operable valve in emitter and the pressure monitoring device for measuring vein pressure.
Further, the pressure operable valve is mounted between the pressure monitoring device and syringe.
Further, the pressure operable valve, which closes on, is mounted on the syringe side.
Further, the pressure operable valve is using the adjustable one-way valve structures of cracking pressure.
Compared with prior art, the advantageous effects that this programme has are as follows: this programme passes through in syringe extension tube
Pressure operable valve and pressure monitoring device are sealed in, so that the injecting liquid drug speed in extension tube is more steady, reduces medical fluid back suction
Risk, measurement patient's vein pressure is also more accurate, furthermore by pressure operable valve be arranged pressure monitoring device and syringe it
Between and close on that pressure monitoring device can be made to survey pressure energy to the vein of patient positioned at syringe side is enough more stable and accurate
Ground measures.
Detailed description of the invention
Fig. 1 is existing syringe pump apparatus structural schematic diagram.
Fig. 2 matches the structural schematic diagram of transmission for the lead screw inside existing syringe pump with screw.
Fig. 3 is that syringe pump surveys pressure and anti-self-flow device structural schematic diagram in the present embodiment.
Description of symbols in figure:
1- syringe needle, 2- extension tube, 3- pressure monitoring device, 4- pressure operable valve, 5- syringe, 6- syringe pump, 7- pushing hands.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
The present embodiment is directed to the lead screw in existing syringe pump apparatus and screw, and there are gaps in transmission work, lead to medicine
Flow velocity fluctuation is larger, and a kind of syringe pump that may be generated certain risk to patient safety and propose surveys pressure and anti-gravity flow dress
It sets.The injecting liquid drug speed in extension tube 2 can be made more by surveying pressure and anti-self-flow device using the syringe pump in the present embodiment
Steadily, medical fluid back suction risk is reduced, measurement patient's vein pressure is also more accurate.
Referring to shown in attached drawing 3, attached drawing 3 is that the syringe pump in the present embodiment surveys pressure and anti-self-flow device structural schematic diagram,
Including syringe pump 6, the pushing hands being mounted on syringe pump 67, the syringe 5 pushed is driven by syringe pump 6, is connected with syringe 5
Infusion extension tube 2 and the syringe needle 1 being mounted in extension tube 2 further include having to be mounted in extension tube 2 to be used to prevent extension tube
The pressure operable valve 4 that medical fluid in 2 positioned at 1 one end of syringe needle is back in syringe 5 and the pressure prison for measuring vein pressure
Surveying device 3, (pressure monitoring device 3 is existing common vein pressure measuring device, predominantly utilizes the pressure of monitoring medical fluid
Force value and the vein pressure that patient is perceived by corresponding sensor indirect reaction).Pressure operable valve 4 in the present embodiment is also
It is common one-way valve structures.In order to which opening for pressure operable valve 4 can be adjusted according to actual needs in practical work process
Pressure is opened, the adjustable one-way valve structures of cracking pressure can be used in the above-mentioned pressure operable valve 4 in the present embodiment.
The present embodiment, which surveys pressing element in order to vein of the pressure monitoring device 3 to patient, has more stable and accurate measurement to tie
Fruit, pressure operable valve 4 is mounted between pressure monitoring device 3 and syringe 5 and is closed on is mounted on 5 side of syringe.
When syringe pump 6 works, lead screw transmission drives pushing hands 7 to move along a straight line, and the push handle of syringe 5 is pushed to squeeze injection
Medical fluid in device 5, medical fluid are pressed into 5 connecting pin of extension tube 2 and syringe, when medical fluid reaches the unlatching pressure of pressure operable valve 4
When power, pressure operable valve 4 is opened, and medical fluid flows through and enters patient's body through the final syringe needle 1 of pressure monitoring device 3.Due to pressure
Opening valve 4 has the characteristic unidirectionally opened, therefore when patient's end position is higher than 5 position of syringe, medical fluid pressure is remote in syringe needle 1
Greater than medical fluid pressure in syringe 5, once reverse flow occurs in 2 Chinese medicine liquid of extension tube, pressure operable valve 4 can be closed, and make medicine
Liquid is unable to reverse flow.And when patient's end position is lower than 5 position of syringe, although medical fluid pressure is greater than syringe needle 1 in syringe 5
Locate medical fluid pressure, but since pressure operable valve 4 has certain cracking pressure, so medical fluid in syringe 5 will not be made to flow automatically
Enter patient's body.So that the medical fluid flow velocity that syringe pump 6 injects patient's body is more steady, it is also safer to patient.Separately
Outside, due to the introducing of pressure operable valve 4 so that the flow velocity of liquid medicine injection is more steady, so going here and there in the downstream of pressure operable valve 4
Enter pressure monitoring device 3, which is monitored the vein pressure of patient, and numerical value also can be more stable and smart
Really.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technology, then the utility model is also intended to include these modifications and variations.
Claims (4)
1. a kind of syringe pump surveys pressure and anti-self-flow device comprising syringe pump, the pushing hands being mounted on the syringe pump, by described
Syringe pump drives syringe, the infusion extension tube being connected with the syringe and the syringe needle being mounted in extension tube pushed,
It is characterized by also including have the medical fluid reflux for preventing from being located at described syringe needle one end in extension tube being mounted in extension tube
To the pressure operable valve in the syringe and the pressure monitoring device for measuring vein pressure.
2. a kind of syringe pump according to claim 1 surveys pressure and anti-self-flow device, it is characterised in that: the pressure operable valve
It is mounted between the pressure monitoring device and syringe.
3. a kind of syringe pump according to claim 1 surveys pressure and anti-self-flow device, it is characterised in that: the pressure operable valve
It closes on and is mounted on the syringe side.
4. a kind of syringe pump according to claim 1 surveys pressure and anti-self-flow device, it is characterised in that: the pressure operable valve
To use the adjustable one-way valve structures of cracking pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721552350.4U CN208641441U (en) | 2017-11-20 | 2017-11-20 | A kind of syringe pump survey pressure and anti-self-flow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721552350.4U CN208641441U (en) | 2017-11-20 | 2017-11-20 | A kind of syringe pump survey pressure and anti-self-flow device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208641441U true CN208641441U (en) | 2019-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721552350.4U Active CN208641441U (en) | 2017-11-20 | 2017-11-20 | A kind of syringe pump survey pressure and anti-self-flow device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208641441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327509A (en) * | 2019-08-01 | 2019-10-15 | 巨翊科瑞医疗技术(上海)有限公司 | It is a kind of to prevent gravity flow valve based on transfusion system |
-
2017
- 2017-11-20 CN CN201721552350.4U patent/CN208641441U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327509A (en) * | 2019-08-01 | 2019-10-15 | 巨翊科瑞医疗技术(上海)有限公司 | It is a kind of to prevent gravity flow valve based on transfusion system |
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