CN109420220B - Self-adaptive flow rate control method for high-pressure injector - Google Patents
Self-adaptive flow rate control method for high-pressure injector Download PDFInfo
- Publication number
- CN109420220B CN109420220B CN201710733066.5A CN201710733066A CN109420220B CN 109420220 B CN109420220 B CN 109420220B CN 201710733066 A CN201710733066 A CN 201710733066A CN 109420220 B CN109420220 B CN 109420220B
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- Prior art keywords
- pressure
- injection
- flow rate
- injector
- self
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 51
- 239000007924 injection Substances 0.000 claims abstract description 51
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000002872 contrast media Substances 0.000 description 4
- 206010053649 Vascular rupture Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 229940039231 contrast media Drugs 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/16854—Monitoring, detecting, signalling or eliminating infusion flow anomalies by monitoring line pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/48—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for varying, regulating, indicating or limiting injection pressure
- A61M5/484—Regulating injection pressure
Abstract
The invention discloses a self-adaptive flow rate control method of a high-pressure injector, wherein in the injection process, the injection pressure P is detected in real time through a pressure detection device in the injector, if the actual measured pressure P is greater than the limit pressure P0, the flow rate is reduced for injection, and the injection speed is preferably lower than 1 ml/s; if the measured pressure P is greater than the interrupt pressure P1, interrupting injection; when injecting at low flow rate, detect whether actual measurement pressure P is less than recovery pressure P2, if P is less than P2, inject according to rated flow V, otherwise continue to inject at low flow rate, it has greatly made things convenient for medical personnel's use, guaranteed injection safety, alleviateed patient's misery, design scientific and reasonable, convenient to use.
Description
Technical field:
the invention relates to a self-adaptive flow rate control method for a high-pressure injector, and belongs to the technical field of high-pressure injectors.
The background technology is as follows:
when a patient performs CT scanning, in order to obtain a clearer image effect, a contrast medium is generally required to be injected into a human body. During injection, the injector can perform injection at a rated speed set by medical staff. But the syringe may be raised when the passage of blood vessels in the body is blocked or the connected disposable components restrict the flow of contrast media. If the medical device is not handled in time, serious problems such as vascular rupture or damage of disposable parts can be caused, injection safety is affected, and health of patients is endangered.
In the conventional high-pressure injector, injection is continuously performed at a set speed when a contrast medium is injected. When the blockage occurs, medical staff cannot find and respond in time, so that serious consequences are caused, and the health of patients is endangered. Still other high pressure injectors may detect pressure in real time as the contrast agent is injected and address the problem of occlusion that occurs, but the method is typically to stop the injection directly. Although serious consequences can be effectively avoided. However, the blockage sometimes occurs only at a moment, and the blockage problem may be eliminated after a period of time, and if the injection is stopped at the moment, medical staff is required to reset and start the high-pressure injector, so that the workload is increased.
The invention comprises the following steps:
aiming at the technical problem to be solved, the invention provides a self-adaptive flow rate control method of a high-pressure injector, wherein in the injection process, the injection pressure P is detected in real time through a pressure detection device in the injector, if the actual measured pressure P is larger than the limit pressure P0, the flow rate is reduced for injection, and the injection speed is preferably lower than 1 ml/s; if the measured pressure P is greater than the interrupt pressure P1, interrupting injection; when injecting at low flow rate, detect whether actual measurement pressure P is less than recovery pressure P2, if P is less than P2, inject according to rated flow V, otherwise continue to inject at low flow rate, it has greatly made things convenient for medical personnel's use, guaranteed injection safety, alleviateed patient's misery, design scientific and reasonable, convenient to use.
A self-adaptive flow rate control method of a high-pressure injector comprises the following steps: starting a high-pressure injector, setting a rated flow rate V and a limit pressure P0, and calculating an interrupt pressure P1 and an injection recovery pressure P2 by a system; after the setting is completed, the injection is started: in the injection process, the injection pressure P is detected in real time by a pressure detection device in the injector, if the measured pressure P is larger than the limit pressure P0, the flow rate is reduced for injection, and the injection speed is preferably lower than 1 ml/s; if the measured pressure P is greater than the interrupt pressure P1, interrupting injection; when injecting at low flow rate, detecting whether the measured pressure P is smaller than the recovery pressure P2, if P is smaller than P2, injecting at rated flow rate V, otherwise, continuing to inject at low flow rate.
Preferably, the limit pressure P0 is between 100 and 300psi, and the injection interruption pressure p1= (1.1 to 1.5) x P0; injection recovery pressure p2= (0.6-0.8) P0.
The invention has the beneficial effects that: in the injection process, the injection pressure P is detected in real time through a pressure detection device in the injector, if the measured pressure P is larger than the limit pressure P0, the flow rate is reduced for injection, and the injection speed is preferably lower than 1 ml/s; if the measured pressure P is greater than the interrupt pressure P1, interrupting injection; when injecting at low flow rate, detect whether actual measurement pressure P is less than recovery pressure P2, if P is less than P2, inject according to rated flow V, otherwise continue to inject at low flow rate, it has greatly made things convenient for medical personnel's use, guaranteed injection safety, alleviateed patient's misery, design scientific and reasonable, convenient to use.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
Fig. 1 is a schematic diagram of a control method of the present invention.
The specific embodiment is as follows:
for the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
As shown in fig. 1, a method for controlling the self-adaptive flow rate of a high-pressure injector is as follows: starting a high-pressure injector, setting a rated flow rate V and a limit pressure P0, and calculating an interrupt pressure P1 and an injection recovery pressure P2 by a system; after the setting is completed, the injection is started: in the injection process, the injection pressure P is detected in real time by a pressure detection device in the injector, if the measured pressure P is larger than the limit pressure P0, the flow rate is reduced for injection, and the injection speed is preferably lower than 1 ml/s; if the measured pressure P is greater than the interrupt pressure P1, interrupting injection; when injecting at low flow rate, detecting whether the measured pressure P is smaller than the recovery pressure P2, if P is smaller than P2, injecting at rated flow rate V, otherwise, continuing to inject at low flow rate.
Preferably, the limit pressure P0 is between 100 and 300psi, and the injection interruption pressure p1= (1.1 to 1.5) x P0; injection recovery pressure p2= (0.6-0.8) P0.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A high pressure injector with self-adaptive flow rate, characterized in that: the self-adaptive flow rate control module is used for starting the high-pressure injector, setting rated flow rate V and limit pressure P0, wherein the limit pressure P0 is between 100 and 300psi, and calculating to obtain interrupt pressure P1 and injection recovery pressure P2, and injection interrupt pressure P1= (1.1-1.5) is equal to P0; injection recovery pressure p2= (0.6-0.8) P0; after the setting is completed, the injection is started: in the injection process, detecting the injection pressure P in real time by a pressure detection device in the injector, and if the measured pressure P is greater than the limit pressure P0, reducing the flow rate to perform injection; the reduced flow rate injection rate is below 1 ml/s; if the measured pressure P is greater than the interrupt pressure P1, interrupting injection; when injecting at the reduced flow rate, detecting whether the measured pressure P is smaller than the recovery pressure P2, if P is smaller than P2, injecting at the rated flow rate V, otherwise, continuing to inject at the reduced flow rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710733066.5A CN109420220B (en) | 2017-08-24 | 2017-08-24 | Self-adaptive flow rate control method for high-pressure injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710733066.5A CN109420220B (en) | 2017-08-24 | 2017-08-24 | Self-adaptive flow rate control method for high-pressure injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109420220A CN109420220A (en) | 2019-03-05 |
| CN109420220B true CN109420220B (en) | 2024-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710733066.5A Active CN109420220B (en) | 2017-08-24 | 2017-08-24 | Self-adaptive flow rate control method for high-pressure injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109420220B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114796733A (en) * | 2022-04-13 | 2022-07-29 | 苏州恒瑞迪生医疗科技有限公司 | Injection speed control system and method |
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|---|---|---|---|---|
| CN2609501Y (en) * | 2003-04-01 | 2004-04-07 | 陈硕 | Multifunction remote-control digital contrast apparatus |
| WO2008117747A1 (en) * | 2007-03-23 | 2008-10-02 | Nemoto Kyorindo Co., Ltd. | Chemical injector and control method of chemical injector |
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| CN101549183A (en) * | 2009-04-29 | 2009-10-07 | 深圳市安特高科实业有限公司 | High-pressure safe injection method and system |
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| CN201399126Y (en) * | 2009-04-03 | 2010-02-10 | 郑晓林 | High pressure injection leaking sewing automatic controller |
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| CN204218921U (en) * | 2014-11-07 | 2015-03-25 | 北京大学深圳医院 | CT high-pressure injection pressure detecting alarm device and CT high pressure injector |
| CN104689421A (en) * | 2013-12-03 | 2015-06-10 | 乌尔里希有限及两合公司 | Injector for injecting a fluid and method for controlling an injector |
| CN104841025A (en) * | 2015-04-16 | 2015-08-19 | 河南科技大学第一附属医院 | Device used for airtight lumbar puncturing and cerebrospinal fluid replacing |
| CN205698741U (en) * | 2016-03-02 | 2016-11-23 | 广州友沃医疗设备有限公司 | There is the high pressure injector of pressure detecting function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090131832A1 (en) * | 2007-11-20 | 2009-05-21 | Innovamedica S.A.P.I. De C.V. | Electronic Syringe with Safety System for Spinal Injection |
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2017
- 2017-08-24 CN CN201710733066.5A patent/CN109420220B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2609501Y (en) * | 2003-04-01 | 2004-04-07 | 陈硕 | Multifunction remote-control digital contrast apparatus |
| CN103656786A (en) * | 2003-11-04 | 2014-03-26 | 史密斯医疗Asd公司 | Syringe pump rapid occlusion detection system |
| WO2008117747A1 (en) * | 2007-03-23 | 2008-10-02 | Nemoto Kyorindo Co., Ltd. | Chemical injector and control method of chemical injector |
| CN101470036A (en) * | 2007-12-28 | 2009-07-01 | 北京谊安医疗系统股份有限公司 | Block pressure detection and processing equipment and method for injection pump |
| 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 |
| CN201399126Y (en) * | 2009-04-03 | 2010-02-10 | 郑晓林 | High pressure injection leaking sewing automatic controller |
| CN101549183A (en) * | 2009-04-29 | 2009-10-07 | 深圳市安特高科实业有限公司 | High-pressure safe injection method and system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109420220A (en) | 2019-03-05 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210317 Address after: 210029 Block A, 8th Floor, 301 Hanzhongmen Street, Gulou District, Nanjing City, Jiangsu Province Applicant after: Nanjing Jusha Display Technology Co.,Ltd. Applicant after: NANJING JUSHA MEDICAL TECHNOLOGY Co.,Ltd. Address before: 210003 No.5, Hongmiao Lane 1, Fujian Road, Gulou District, Nanjing City, Jiangsu Province Applicant before: NANJING GANKONGTONG CHEMICAL PRODUCT OPERATION PORTION |
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