CN103536986A - Contrast agent injection device - Google Patents
Contrast agent injection device Download PDFInfo
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- CN103536986A CN103536986A CN201310543079.8A CN201310543079A CN103536986A CN 103536986 A CN103536986 A CN 103536986A CN 201310543079 A CN201310543079 A CN 201310543079A CN 103536986 A CN103536986 A CN 103536986A
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- injection
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- logic decision
- control system
- injection head
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Abstract
The invention provides a contrast agent injection device which at least comprises an injection head, a needle cylinder, a push rod, a sensing module and a master control system. The push rod moves in the needle cylinder to realize injection. The master control system is respectively connected with the sensing module and a push control system for driving the push rod to move, the sensing module is fixedly arranged at the injection head and used for acquiring inclination angle information of the needle cylinder before injection and in injection, and the master control system drives the push control system to perform injection only when judging that the injection head is suitable for injection according to the acquired information. The inclination angle information of the needle cylinder is determined according to the inclination angle information detected by the sensing module, so that whether the injection head is suitable for injection or not can be judged, and potential safety hazards caused by bubbles in high-pressure injection of contrast agents are effectively eliminated.
Description
Technical field
The present invention relates to medical instruments field, relate in particular to a kind of contrast medium injection deivice.
Background technology
Digital subtraction angiography (DSA) is the angiography method of imaging of assisting by electronic computer, is to be applied to clinical a kind of brand-new x-ray since the seventies to check new technique.It is that appliance computer program is carried out twice imaging and completed.Before injecting contrast agent, first carry out imaging for the first time, and with computer, convert image to digital signal and store.Inject after contrast agent, re-imaging also converts digital signal to.Twice digital subtraction, eliminates identical signal, obtains a blood-vessel image that only has contrast agent.This image is the shown image of conventional cerebral angiography more used, and more clear and directly perceived, some meticulous blood vessel structures also can show.
There are in the prior art some drawbacks in the injection device that injection contrast agent is used, such as, when the syringe of injection head upward time the bubble in syringe can gather the top of syringe, once when injection, incident angle selection is improper like this, bubble will be with contrast-medium injection in human body, and this is danger close.In prior art, can only rely on medical personnel before injection, to check bubble and the angle of inclination of adjusting injection head avoids this problem to occur, but artificial operation is when always having carelessness.Again such as, when carrying out the injection of contrast agent, when device such as is subject to clashing into, topples at the fortuitous event, if also proceed injection, will bring injury to human body.So existing contrast medium injection deivice exists many potential safety hazards.
Summary of the invention
The technical problem to be solved in the present invention is the potential safety hazard of bringing because of bubble while how effectively to eliminate contrast agent high-pressure injection.
In order to solve this technical problem, the invention provides a kind of contrast medium injection deivice, at least comprise injection head, syringe and push rod, described push rod is injected by mobile realization the in described syringe, described injection head is fixedly connected with syringe, this contrast medium injection deivice also comprises induction module and turn-key system, described turn-key system is connected with described induction module and the propulsion control system that drives described push rod to move respectively, described induction module is fixedly located on described injection head, in order to gather the angle of inclination information of described syringe, only when described turn-key system judges described in described injection head is when being suitable for injecting that according to the information collecting turn-key system just drives described propulsion control system to inject.
Preferably, under the angle that described injection head is suitable for injection is described push rod mobile direction is tilted in described syringe when injecting, and be greater than 30 degree with the acute angle angle of horizontal plane.
Preferably, described turn-key system comprises comparing unit, logic decision processor and control unit, described comparing unit is connected with logic decision processor with described induction module respectively, described control unit is connected with propulsion control system with described logic decision processor respectively, described logic decision processor is in order to judge whether described injection head is suitable for injection, and then controls the running of described propulsion control system.
Preferably, described comparing unit compares in order to angle of inclination information that described induction module is collected and default information, and then comparative result is transferred to described logic decision processor;
Described logic decision processor is in order to judge according to this comparative result whether the inclination situation of injection head is suitable for injection, only when result of determination is when being suitable for injecting, described control unit just drives described propulsion control system, and described push rod is moved in described syringe, realizes injection.
Preferably, under when described push rod is used for injecting, in described syringe, mobile direction is tilted to, and be greater than 30 while spending with the acute angle angle of horizontal plane, described logic decision processor just judges that the inclination situation of described injection head is suitable for injection, otherwise described logic decision processor is unsuitable for injection by the inclination situation of judging described injection head.
Preferably, when injection, described induction module detects the motion conditions of described injection head in real time, when the motion conditions of described injection head exceeds default safety range, described logic decision processor judges that described injection head is unsuitable for injection, and then drive described propulsion control system to decommission, realize and stop injection.
Preferably, when injection, when the cephalomotor acceleration of described injection exceeds default safety range, described logic decision processor judges that described injection head is unsuitable for injection.
Preferably, described contrast medium injection deivice also comprises a display screen, and described display screen is connected with described logic decision processor, in order to the result of determination of described logic decision processor is presented on described display screen.
Preferably, described induction module is gravity sensor.
Preferably, described propulsion control system is motor.
The present invention is by analyzing the stressed and movement locus of bubble, find that whether it exists and whether can be all closely bound up with the tilt condition of syringe to these situations in human body with contrast-medium injection, so the present invention utilizes induction module to realize detection and the feedback to syringe inclination situation, in the present invention, induction module is fixedly located on described syringe or injection head, thereby make induction module in three dimensions, realize movement and the rotation of synchronizeing with syringe and injection head, so, the angle of inclination information detecting by induction module be the angle of inclination information of syringe, and then can utilize described turn-key system to determine whether to be suitable for injection, and then propulsion control system is controlled, thereby the potential safety hazard of bringing because of bubble while effectively eliminating contrast agent high-pressure injection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the contrast medium injection deivice that provides of one embodiment of the invention;
Fig. 2 is the schematic flow sheet of injecting in an embodiment of the present invention the described contrast medium injection deivice of front use;
Fig. 3 is the schematic flow sheet that uses described contrast medium injection deivice while injecting in an embodiment of the present invention.
The specific embodiment
Below with reference to Fig. 1 and Fig. 2, contrast medium injection deivice provided by the invention is described in detail, it is the present invention's one optional embodiment, can think that those skilled in the art can modify and polish it in the scope that does not change the present invention's spirit and content.
Please refer to Fig. 1, the present embodiment provides a kind of contrast medium injection deivice, at least comprise push rod, syringe and the injection head being fixedly connected with one end of described syringe, described push rod is injected by mobile realization the in described syringe, further, the end of described push rod arranges piston, described push rod enters described syringe from the other end of described syringe, and by the movement of push rod, realize the movement of piston, and then realize and injecting, described contrast medium injection deivice also comprises induction module and turn-key system, described turn-key system is connected with described induction module and the propulsion control system that drives described push rod to move respectively, described induction module is fixedly located on described injection head, in order to gather the angle of inclination information of described injection head, only when described turn-key system judges described in described injection head is when being suitable for injecting that according to the information collecting turn-key system just drives described propulsion control system to inject.Here alleged " injection ", both can comprise the startup of the front start injection of injection, also can comprise the driving of the continuation injection in injection.To changing the means of syringe angle, be no matter manually or automatically, all should belong to one of means that the present invention protects.
In the present embodiment, described propulsion control system is motor.
The present embodiment utilizes induction module to realize detection and the feedback to syringe inclination situation, in the present embodiment, induction module is fixedly located on described injection head, described injection head is fixedly connected with syringe, thereby make induction module, syringe is realized movement and the rotation of synchronizeing in three dimensions with injection head, so, the angle of inclination information detecting by induction module be the angle of inclination information of syringe, and then can utilize described turn-key system to determine whether to be suitable for injection, and then propulsion control system is controlled, thereby the potential safety hazard of bringing because of bubble while effectively eliminating contrast agent high-pressure injection.
Induction module described in the present embodiment is gravity sensor, also can be gravity sensing chip, and in the present embodiment, its mechanism of action is, by gravity sensing device, direction signal is converted to level signal, then by gathering the angle that relatively draws measured object and horizontal plane.In mobile phone, conventionally also use this gravity sensor, but, the present invention is not limited to this, even not by this mechanism or similar devices, as long as realized medium dip angle information of the present invention detect this function induction module, even if use a plurality of induction apparatuss, also all can think that it is the present invention's one optional embodiment.
In another optional embodiment of the present invention, described induction module also can adopt direction inductor device, be to weigh by the inertia force size of certain direction of induction the device that its acceleration and gravity are responded to direction and direction variation, specifically, in direction inductor device, triaxial accelerometer be can be provided with, X-axis, Y-axis and Z axis are divided into.The solid space that these three axles form is enough to detect the exercises of testee.
The present invention is by analyzing the stressed and movement locus of bubble, find that whether it exists and whether can be all closely bound up with the tilt condition of syringe to these situations in human body with contrast-medium injection, further, the present invention creatively finds the optimum selection of this inclination situation in practice: to be suitable for the angle of injection be described push rod to described injection head under in described syringe, mobile direction is tilted to when injecting, and be greater than 30 degree with the acute angle angle of horizontal plane.
This optimum selection is combined with induction module, contrast medium injection deivice provided by the present invention has also been made other system and has comprehensively been improved, specifically, in the present embodiment, please refer to Fig. 1, described turn-key system has at least comprised comparing unit, logic decision processor (CPU) and control unit, described comparing unit is connected with logic decision processor (CPU) with described induction module respectively, described control unit is connected with propulsion control system with described logic decision processor (CPU) respectively, described logic decision processor (CPU) is in order to judge whether described injection head is suitable for injection, its data that can come according to described comparing unit transmission are judged, and then control the running of described propulsion control system.
Please refer to Fig. 2 and Fig. 3, described comparing unit compares in order to angle of inclination information that described induction module is collected and default information, and then comparative result is transferred to described logic decision processor (CPU); Here mentioned presupposed information can be the scope at angle of inclination in the present embodiment, for example oblique under, and with the scope of horizontal plane angle be 0 to 30 this description of degree, surpass this scope and be considered as being suitable for injection.But, even if this presupposed information is not set as to an angular range, or this angular range is not set as to 0 to 30 degree, and as long as meet by the comparison with prestored information, can realize the judgement that whether is suitable for injection, just can think that its means have still dropped in protection scope of the present invention;
Described logic decision processor (CPU) is in order to judge according to this comparative result whether the inclination situation of injection head is suitable for injection, before injection, only when result of determination is when being suitable for injecting, described control unit just drives described propulsion control system, described push rod is moved in described syringe, realize injection; In when injection, when result of determination is when being unsuitable for injecting, described control unit stops the running of described propulsion control system, stops injection process.
In the present embodiment, under when described push rod is used for injecting, in described syringe, mobile direction is tilted to, and be greater than 30 while spending with the acute angle angle of horizontal plane, described logic decision processor (CPU) just judges that the inclination situation of described injection head is suitable for injection, otherwise, described logic decision processor (CPU) is unsuitable for injection by the inclination situation of judging described injection head, and then can change the angle of inclination of described syringe, the incident direction of final injection head is tilted to down, and is greater than 30 degree with the acute angle angle of horizontal plane.
Further, in another optional embodiment, when injection, described induction module also detects the motion conditions of described injection head in real time, when the motion conditions of described injection head exceeds default safety range, described logic decision processor judges that described injection head is unsuitable for injection, and then drives described propulsion control system to decommission, and realizes and stops injection.Assert the required parameter kind of safety range can people for setting, for instance, when injection, when the cephalomotor acceleration of described injection exceeds default safety range, described logic decision processor judges that described injection head is unsuitable for injection, the concrete numerical value of acceleration, can test acquisition by limited number of time, and without doing too much and enumerate at this.For this reason, described induction module can be connected with described logic decision processor (CPU), also can be as shown in Fig. 1 of the present embodiment, by comparing unit, be connected with described logic decision processor (CPU), thereby by comparing unit, realize the comparison of default safety range, can certainly be connected with logic decision processor (CPU) by other devices, as long as meeting the motion conditions that described induction module detects exceeds after safety range, can make described logic decision processor (CPU) be judged to be and be unsuitable for injection, should think that it does not depart from protection scope of the present invention.
That is to say, when injection, be no matter when angle that described induction module detects described injection head be while being unsuitable for the angle of injection or when described induction module motion conditions that described injection head detected exceeds safety range, as long as there is the situation of one of them, described logic decision processor (CPU) will determine that it is and be unsuitable for injection, thereby stops the running of described propulsion control system.
Described contrast medium injection deivice also can comprise a display screen, and described display screen is connected with described logic decision processor (CPU), in order to the result of determination of described logic decision processor (CPU) is presented on described display screen.So that medical worker checks.Where necessary, described contrast medium injection deivice also can be with the parts that show the functions such as the anglec of rotation of syringe and alarm.
In the present embodiment, can also comprise a rotating mechanism, described syringe is connected with rotating mechanism, and by the rotation of described rotating mechanism, realizes the variation of described syringe angle.Specifically, the rotating shaft of rotating mechanism and syringe can be fixed, so the rotation of rotating shaft is by the rotary synchronous with syringe.And the concrete data such as the amplitude whether rotating mechanism rotates, rotates all can be controlled by described turn-key system.
Except the potential safety hazard that bubble produces, in prior art, also exist contrast medium injection deivice the safety problem that fortuitous event brings such as to be subject to clashing into, topple over, to this, the present invention by having carried out effective control to the use of induction module to this danger when injecting.When injection, whether the motion that described induction module detects described injection head exceeds safety range, if exceed safety range, injection process will be stopped.Motion exceeds the dangerous results that safety range can be thought fortuitous events such as being clashed into and topple over, so, by the situation of detection campaign, specifically, for speed and the situation such as acceleration of motion, can effectively prevent from clashing into and topple over after waiting fortuitous event to occur and also continue to inject the injury to human body bringing.And the means that stop injection process can be original warning and manual interventions, can also adopt the means of automatization.So the present invention has solved the potential safety hazard brought because of bubble and injection timer by arranging of induction module and the potential safety hazard that fortuitous event brings such as has been subject to clashing into, topple over simultaneously.
Claims (10)
1. a contrast medium injection deivice, at least comprise injection head, syringe and push rod, described push rod is injected by mobile realization the in described syringe, described injection head is fixedly connected with syringe, it is characterized in that: also comprise induction module and turn-key system, described turn-key system is connected with described induction module and the propulsion control system that drives described push rod to move respectively, described induction module is fixedly located on described injection head, in order to gather the angle of inclination information of described syringe, only when described turn-key system judges that according to the information collecting described injection head is when being suitable for injecting, described turn-key system just drives described propulsion control system to inject.
2. contrast medium injection deivice as claimed in claim 1, is characterized in that: under the angle that is suitable for injection of described injection head is described push rod mobile direction is tilted in described syringe when injecting, and be greater than 30 degree with the acute angle angle of horizontal plane.
3. contrast medium injection deivice as claimed in claim 1, it is characterized in that: described turn-key system comprises comparing unit, logic decision processor and control unit, described comparing unit is connected with logic decision processor with described induction module respectively, described control unit is connected with propulsion control system with described logic decision processor respectively, described logic decision processor is in order to judge whether described injection head is suitable for injection, and then controls the running of described propulsion control system.
4. contrast medium injection deivice as claimed in claim 3, is characterized in that: described comparing unit compares in order to angle of inclination information that described induction module is collected and default information, and then comparative result is transferred to described logic decision processor; Described logic decision processor is in order to judge according to this comparative result whether the inclination situation of injection head is suitable for injection, only when result of determination is when being suitable for injecting, described control unit just drives described propulsion control system, and described push rod is moved in described syringe, realizes injection.
5. contrast medium injection deivice as claimed in claim 4, it is characterized in that: under when described push rod is used for injecting, in described syringe, mobile direction is tilted to, and be greater than 30 while spending with the acute angle angle of horizontal plane, described logic decision processor just judges that the inclination situation of described injection head is suitable for injection, otherwise described logic decision processor is unsuitable for injection by the inclination situation of judging described injection head.
6. contrast medium injection deivice as claimed in claim 3, is characterized in that; When injection, described induction module detects the motion conditions of described injection head in real time, when the motion conditions of described injection head exceeds default safety range, described logic decision processor judges that described injection head is unsuitable for injection, and then drive described propulsion control system to decommission, realize and stop injection.
7. contrast medium injection deivice as claimed in claim 6, is characterized in that: when injection, when the cephalomotor acceleration of described injection exceeds default safety range, described logic decision processor judges that described injection head is unsuitable for injection.
8. contrast medium injection deivice as claimed in claim 3, is characterized in that: also comprise a display screen, described display screen is connected with described logic decision processor, in order to the result of determination of described logic decision processor is presented on described display screen.
9. contrast medium injection deivice as claimed in claim 1, is characterized in that: described induction module is gravity sensor.
10. contrast medium injection deivice as claimed in claim 1, is characterized in that: described propulsion control system is motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543079.8A CN103536986A (en) | 2013-11-05 | 2013-11-05 | Contrast agent injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543079.8A CN103536986A (en) | 2013-11-05 | 2013-11-05 | Contrast agent injection device |
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| Publication Number | Publication Date |
|---|---|
| CN103536986A true CN103536986A (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310543079.8A Pending CN103536986A (en) | 2013-11-05 | 2013-11-05 | Contrast agent injection device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6004285A (en) * | 1996-12-06 | 1999-12-21 | Sugan Co., Ltd. | Injector head for medical use |
| CN101115515A (en) * | 2004-11-11 | 2008-01-30 | 株式会社根本杏林堂 | Chemical liquid infusion system |
| CN100438936C (en) * | 1996-11-22 | 2008-12-03 | 利贝尔-弗拉施姆公司 | Medical fluid injector |
| WO2012155035A1 (en) * | 2011-05-12 | 2012-11-15 | Medrad, Inc. | Fluid injection system having various systems for controlling an injection procedure |
-
2013
- 2013-11-05 CN CN201310543079.8A patent/CN103536986A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438936C (en) * | 1996-11-22 | 2008-12-03 | 利贝尔-弗拉施姆公司 | Medical fluid injector |
| US6004285A (en) * | 1996-12-06 | 1999-12-21 | Sugan Co., Ltd. | Injector head for medical use |
| CN101115515A (en) * | 2004-11-11 | 2008-01-30 | 株式会社根本杏林堂 | Chemical liquid infusion system |
| WO2012155035A1 (en) * | 2011-05-12 | 2012-11-15 | Medrad, Inc. | Fluid injection system having various systems for controlling an injection procedure |
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Application publication date: 20140129 |