CN102266601B - Injector and injection pump pressure detection mechanism - Google Patents
Injector and injection pump pressure detection mechanism Download PDFInfo
- Publication number
- CN102266601B CN102266601B CN 201010620179 CN201010620179A CN102266601B CN 102266601 B CN102266601 B CN 102266601B CN 201010620179 CN201010620179 CN 201010620179 CN 201010620179 A CN201010620179 A CN 201010620179A CN 102266601 B CN102266601 B CN 102266601B
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- syringe
- injection pipeline
- syringe pump
- pressure
- circuit unit
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Abstract
The invention provides an injector and an injection pump pressure detection system. The injector comprises a needle head, a tubular shell, a flexible injection pipeline and a pressure sensor, wherein the flexible injection pipeline is connected between the needle head and the shell; and the pressure sensor is jointed on the outer wall of the injection pipeline. According to the injector and the injection pump detection system, the pressure sensor is directly arranged on the outer wall of the injection pipeline, so that the pressure change of the injection pipeline can be detected directly. Compared with the prior art, the detection system has the advantage that: middle procedures and steps are reduced remarkably, so that quick detection is realized and the accuracy of a detected pressure value is very high.
Description
Technical field
The present invention relates to medical instruments field, in particular to a kind of syringe and syringe pump pressure detecting system.
Background technology
In medical field, using syringe to such as the operational objectives injection of human body or transfusion the time, often need to monitor and detect the pressure in the injection pipeline, to guarantee certain pressure size.In the prior art, useful syringe pump comes injector-actuated, wherein, the internal piston of the drive mechanism promotion syringe pump of syringe pump moves liquid to be input in the operational objectives such as human body with respect to the shell of syringe pump, drive mechanism at syringe pump is provided with pressure transducer, when the injection loine pressure changes, this pressure size is passed to syringe piston by the injection pipeline first, syringe piston passes to drive mechanism with this pressure again, such as passing to travelling gear or leading screw, the stressed pressure that indirectly detects in the injection pipeline that detects travelling gear by pressure transducer changes.In this detection mode, the intermediate link that experiences owing to the pressure transmission is too complicated, thereby the larger deviation of pressure existence that is finally detected by pressure transducer, and does not possess the ability of real-time detection.
Summary of the invention
Propose the present invention for addressing the above problem, and the present invention proposes a kind of syringe and syringe pump pressure detecting system, its can direct-detection by the pressure of injection pipeline to syringe, greatly improved real-time and the accuracy of detected pressures.
According to an aspect of the present invention, provide a kind of syringe, it comprises: syringe needle; Tube-like envelope; The flexible injection pipeline is connected between described syringe needle and the described shell; And pressure transducer, be engaged on the outer wall of described injection pipeline.
Further, described syringe also comprises the treatment circuit unit, and described pressure transducer is electrically connected to described treatment circuit unit, detected pressure signal is transferred to described treatment circuit unit.
Further, described flexible injection pipeline is made of plastics.
According to a further aspect in the invention, provide a kind of syringe pump pressure detecting system, having comprised: syringe pump comprises the treatment circuit unit; And syringe, be connected with described syringe pump, wherein, described syringe comprises: syringe needle; Tube-like envelope; The flexible injection pipeline is connected between described syringe needle and the described shell; And pressure transducer, be engaged on the outer wall of described injection pipeline, wherein, described pressure transducer is electrically connected to described treatment circuit unit, detected pressure signal is transferred to described treatment circuit unit.
Further, described syringe pump comprises fixed part, and described fixed part engages with the shell of described syringe, so that described syringe is fixedly attached to described syringe pump.
Further, described syringe comprises the piston that is positioned at described shell, and described syringe pump comprises drive rod, and described drive rod promotes described piston, so that described piston moves with respect to described shell, realizes promoting injection;
Further, described syringe route plastics are made.
According to syringe of the present invention and syringe pump detection system owing to pressure transducer is set directly on the outer wall of injection pipeline so that its can direct-detection the pressure of injection pipeline change.Than prior art, link and factor obviously reduce in the middle of it, thereby it is very high to detect force value accuracy rapid and that detect.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 schematically shows has the according to the preferred embodiment of the invention syringe pump pressure detecting system of syringe.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments syringe of the present invention and syringe pump pressure detecting system in detail.
Fig. 1 shows has the according to the preferred embodiment of the invention syringe pump pressure detecting system of syringe.This syringe pump pressure detecting system comprises syringe 10 and syringe pump 30, and syringe 10 is connected to syringe pump 30.Syringe 10 comprises: syringe needle 12, and it is used for engaging to inject with injection object such as human body 40; Tube-like envelope 16; Flexible injection pipeline 14 is connected between syringe needle 12 and the shell 16.Syringe 10 also comprises the piston 18 that is positioned at shell 16, and this piston 18 can be with respect to shell 16 move left and right.Unlike the prior art, the syringe 10 according to the embodiment of the invention also comprises the pressure transducer 20 that is bonded on flexible injection pipeline 14 outer walls.But these pressure transducer 20 sensing flexible injection pipelines 14 is stressed.
In this embodiment of the present invention, be provided with treatment circuit unit 32 on the syringe pump 30, pressure transducer 20 is connected to this treatment circuit unit 32 by holding wire 22.Thus, treatment circuit unit 32 receives from the pressure signal of pressure transducer 20 and by the inter-process part this signal is processed to draw pressure size in the flexible injection pipeline 14.
Certainly, it will be understood by those skilled in the art that treatment circuit unit 32 also can not be arranged on the syringe pump 30.
In addition, preferably, flexible injection pipeline 14 can be made of plastics.
Syringe pump detection system according to the embodiment of the invention, during injecting, when the pressure in the flexible injection pipeline 14 changes, such as when obstruction or bending occur in injection pipeline 14, injection pipeline 14 internal pressures increase, the outer wall pressure of injection pipeline 14 changes, but the current pressure signal of pressure transducer 20 real-time samplings that is bonded on the outer wall is also directly passed to treatment circuit unit 32 via holding wire 22 with this signal, to carry out subsequent calculations and processing.
According to syringe of the present invention and syringe pump detection system owing to pressure transducer is set directly on the outer wall of injection pipeline so that its can direct-detection the pressure of injection pipeline change.Than prior art, link and factor obviously reduce in the middle of it, thereby it is very high to detect force value accuracy rapid and that detect.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a syringe is characterized in that, comprising:
Syringe needle (12);
Tube-like envelope (16);
Flexible injection pipeline (14) is connected between described syringe needle (12) and the described shell (16); And
Pressure transducer (20) is engaged on the outer wall of described flexible injection pipeline (14), the described flexible injection pipeline of sensing (14) stressed.
2. syringe according to claim 1, it is characterized in that, described syringe also comprises treatment circuit unit (32), and described pressure transducer (20) is electrically connected to described treatment circuit unit (32), detected pressure signal is transferred to described treatment circuit unit (32).
3. syringe according to claim 1 is characterized in that, described flexible injection pipeline (14) is made of plastics.
4. syringe pump pressure detecting system comprises:
Syringe pump (30) comprises treatment circuit unit (32); And
Syringe (10) is connected with described syringe pump (30),
It is characterized in that, described syringe (10) comprising:
Syringe needle (12);
Tube-like envelope (16);
Flexible injection pipeline (14) is connected between described syringe needle (12) and the described shell (16); And
Pressure transducer (20) is engaged on the outer wall of described flexible injection pipeline (14), the described flexible injection pipeline of sensing (14) stressed;
Wherein, described pressure transducer (20) is electrically connected to described treatment circuit unit (32), detected pressure signal is transferred to described treatment circuit unit (32).
5. syringe pump pressure detecting system according to claim 4, it is characterized in that, described syringe pump (30) comprises fixed part (38), described fixed part (38) engages with the shell (16) of described syringe (10), so that described syringe (10) is fixedly attached to described syringe pump (30).
6. syringe pump pressure detecting system according to claim 4, it is characterized in that, described syringe (10) comprises the piston (18) that is positioned at described shell (16), described syringe pump (30) comprises drive rod (34), described drive rod (34) promotes described piston (18), so that described piston (18) is mobile with respect to described shell (16).
7. syringe pump pressure detecting system according to claim 4 is characterized in that, described injection pipeline (14) is made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010620179 CN102266601B (en) | 2010-12-31 | 2010-12-31 | Injector and injection pump pressure detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010620179 CN102266601B (en) | 2010-12-31 | 2010-12-31 | Injector and injection pump pressure detection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102266601A CN102266601A (en) | 2011-12-07 |
| CN102266601B true CN102266601B (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010620179 Expired - Fee Related CN102266601B (en) | 2010-12-31 | 2010-12-31 | Injector and injection pump pressure detection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102266601B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015171778A1 (en) * | 2014-05-06 | 2015-11-12 | The University Of North Carolina At Chapel Hill | Devices, systems, and methods for volumetrically measuring syringe fluid |
| CN105214179B (en) * | 2015-11-06 | 2019-01-29 | 广州中医药大学第一附属医院 | A kind of Multifunctional nerve blockage puncture needle |
| CN111084915A (en) * | 2019-12-31 | 2020-05-01 | 无锡物联网创新中心有限公司 | Micro-power injection device and batching equipment |
| CN111282096B (en) * | 2020-02-26 | 2020-12-15 | 张晓红 | Robot injector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728505Y (en) * | 2004-09-17 | 2005-09-28 | 冯威健 | Injection pump |
| CN101239010A (en) * | 2007-01-29 | 2008-08-13 | 伊西康内外科公司 | External mechanical pressure sensor for gastric band pressure measurements |
| CN201350284Y (en) * | 2009-01-05 | 2009-11-25 | 深圳圣诺医疗设备有限公司 | High pressure injector for monitoring injection pressure in real time |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060213249A1 (en) * | 2005-03-28 | 2006-09-28 | Medrad, Inc. | Devices, systems and method for calibration of systems |
-
2010
- 2010-12-31 CN CN 201010620179 patent/CN102266601B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728505Y (en) * | 2004-09-17 | 2005-09-28 | 冯威健 | Injection pump |
| CN101239010A (en) * | 2007-01-29 | 2008-08-13 | 伊西康内外科公司 | External mechanical pressure sensor for gastric band pressure measurements |
| CN201350284Y (en) * | 2009-01-05 | 2009-11-25 | 深圳圣诺医疗设备有限公司 | High pressure injector for monitoring injection pressure in real time |
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| Publication number | Publication date |
|---|---|
| CN102266601A (en) | 2011-12-07 |
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