CN201012197Y - Resonance high pressure syringe - Google Patents
Resonance high pressure syringe Download PDFInfo
- Publication number
- CN201012197Y CN201012197Y CNU2007200834282U CN200720083428U CN201012197Y CN 201012197 Y CN201012197 Y CN 201012197Y CN U2007200834282 U CNU2007200834282 U CN U2007200834282U CN 200720083428 U CN200720083428 U CN 200720083428U CN 201012197 Y CN201012197 Y CN 201012197Y
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- air
- air pump
- pressure
- magnetic resonance
- magnetic field
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- Expired - Fee Related
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Abstract
The utility model is a high-pressure injector used for the inspection of magnetic resonance; the whole device consists of two parts including an injector body and an air pump. The full body part is made of the plastic, which mainly consists of a gas storage tank, a three-connecting air valve and a cylinder piston component. The three units are connected by a connecting tube, which can pass through the magnetic resonance inspecting room safely; the device is with the better magnetic field compatibility. The air pump is provided with an air-pressure meter and an air-transfer tube; the air-pressure meter can display the pressure of the output air; the air-transfer tube can be connected with the intake mouth of the injector body; the whole air pump is not equipped with the magnetic field compatibility. When being used, the air pump is put outside of the inspecting room.
Description
Affiliated technical field
This utility model is that a kind of magnetic resonance strengthens used high-pressure injection device when checking, utilizes it can carry out the fast injection of contrast agent in Magnetic Resonance (MR) Room/ MRI Room.
Background technology
High pressure injector used in the magnetic resonance enhanced ct scans need be worked under high-intensity magnetic field, require it that good magnetic field compatibility is arranged, CT (computed-tomography) strengthens and employed general high voltage syringe operation of DSA (digital subtraction angiography) angiography and control technology maturation now, can not enter Magnetic Resonance (MR) Room/ MRI Room because not having the magnetic field compatibility and use.At present, the many dependence on import of domestic magnetic resonance special high-pressure syringe, and cost an arm and a leg, have only some large hospitals just to be equipped with, this has limited its clinical practice greatly.
Summary of the invention
In order to overcome the problem that the general high voltage syringe does not have the magnetic field compatibility, this utility model provides a kind of high-pressure injection device of air pressure promotion, and this syringe can use in Magnetic Resonance (MR) Room/ MRI Room, has good magnetic field compatibility.
The technical scheme that its technical problem that solves this utility model adopts is: whole high-pressure injection device is made up of syringe main frame and air pump two parts.Host machine part all is made of plastics, and mainly contains air accumulator, and three-way air valve and cylinder-piston assembly constitute, and is connected by connection tube between them, can pass in and out the magnetic resonance examination chamber safely, has good magnetic field compatibility.The air pump part is by air compressor, and air gauge and appendix constitute, and do not have the magnetic field compatibility, can only place outside the inspection chamber.During use, place magnetic resonance examination outdoor in the syringe main frame earlier,, and close gas check valve, its air accumulator is inflated to certain pressure with air pump with the piston return.Then air pump is separated with main frame, main frame can enter the magnetic resonance examination chamber and use.Open three-way air valve during injection and make air accumulator inner high voltage gas promote piston-advance, and then the pushing syringe injection.Its ultimate principle is that air accumulator inner high voltage gas enters cylinder through three-way air valve control and promotes the piston motion, and then pushing syringe overcomes the resistance intravasation chamber of contrast agent at conduit and injection needle, at this moment the speed of contrast-medium injection is corresponding with the pressure size of gases at high pressure, become approximate proportional relationship, regularly injection speed is constant when gas pressure intensity one.The volume of air accumulator is much larger than maximum cylinder volume in this utility model, the piston setting in motion during to the piston stop motion air accumulator and volume of cylinder sum change very little, can think that the volume of gases at high pressure is constant substantially, its pressure is also constant, so injection speed is at the uniform velocity.
The beneficial effects of the utility model are, the syringe main frame has good magnetic field compatibility, can place the indoor fast injection operation of carrying out contrast agent Anywhere of magnetic resonance examination, and simple in structure, and cost is low.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is this utility model structural representation.
Fig. 2 is the D structure figure of embodiment of the present utility model.
1. syringe main frames among the figure, 2. three-way air valve, 3. cylinder-piston assembly, 4. syringe, 5. air accumulator, 6. air inlet, 7. appendix, 8. air pump, 9. air gauge.
The specific embodiment
In Fig. 1, each parts of syringe main frame (1) all are made of plastics, its interior reservoir gas tank (5), three-way air valve (2), link to each other by the conduit order with cylinder-piston assembly (3), three-way air valve (2) make cylinder-piston assembly (3) can be respectively and air accumulator (5) or ambient atmosphere be connected, air accumulator (5) is provided with the air inlet (6) of a band valve inside, can and air pump (8) appendix (7) be connected.Air pump (8) part is provided with air gauge (9), and air gauge (9) can show the pressure of exporting gas.For guaranteeing injection speed at the uniform velocity, volume of gas storage tank will be far longer than the maximum volume of cylinder, and the volume of best air accumulator is 20-30 a times of maximum cylinder volume.
In the embodiment shown in Figure 2, each parts of syringe main frame (1) all are made of plastics, three-way air valve (2) one ends are connected with atmosphere in it, one end communicates with air accumulator (5), the other end communicates with cylinder-piston assembly (3), have on the air accumulator (5) band valve inside air inlet (6), can and air pump (8) appendix (7) be connected, air pump (8) is provided with air gauge (9).During use, place magnetic resonance examination outdoor in syringe main frame (1) earlier; Again three-way air valve (2) is pushed the state that cylinder is communicated with atmosphere, allow the piston return; Air pump appendix (7) and air accumulator air inlet (6) are connected then, open air pump (8), observe air gauge (9), close air pump when air pressure reaches appointment air pressure, and appendix (7) is separated with air accumulator air inlet (6); Install syringe (4), bring syringe main frame (1) in the magnetic resonance examination chamber, stir three-way air valve (2) behind the blood vessel that punctured and cylinder-piston assembly (3) and air accumulator (5) are connected to carry out contrast-medium injection.
Claims (1)
1. magnetic resonance high pressure injector, whole high-pressure injection device is made up of syringe main frame and air pump two parts, it is characterized in that: host machine part all is made of plastics, it is interior by air accumulator, three-way air valve and cylinder-piston assembly constitute, and connect with connection tube between them, the air pump part is by air compressor, and air gauge and appendix constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200834282U CN201012197Y (en) | 2007-02-02 | 2007-02-02 | Resonance high pressure syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200834282U CN201012197Y (en) | 2007-02-02 | 2007-02-02 | Resonance high pressure syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201012197Y true CN201012197Y (en) | 2008-01-30 |
Family
ID=39023984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200834282U Expired - Fee Related CN201012197Y (en) | 2007-02-02 | 2007-02-02 | Resonance high pressure syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201012197Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075712A (en) * | 2016-07-25 | 2016-11-09 | 江西高大生物医疗科技有限公司 | A kind of uniform mixing sprayer of medical biliquid |
| CN108814602A (en) * | 2018-05-07 | 2018-11-16 | 哈尔滨理工大学 | A kind of encircling type breast tissue fixed device under the environment for nuclear-magnetism |
| CN109893720A (en) * | 2019-03-01 | 2019-06-18 | 浙江师范大学 | A kind of piezo-stack type pneumatic injection system |
| CN109922847A (en) * | 2016-11-01 | 2019-06-21 | 赛诺菲-安万特德国有限公司 | Cubing component |
| CN114712622A (en) * | 2022-04-19 | 2022-07-08 | 安徽理工大学 | Implanted magnetic injection pump |
-
2007
- 2007-02-02 CN CNU2007200834282U patent/CN201012197Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075712A (en) * | 2016-07-25 | 2016-11-09 | 江西高大生物医疗科技有限公司 | A kind of uniform mixing sprayer of medical biliquid |
| CN109922847A (en) * | 2016-11-01 | 2019-06-21 | 赛诺菲-安万特德国有限公司 | Cubing component |
| US11246984B2 (en) | 2016-11-01 | 2022-02-15 | Sanofi-Aventis Deutschland Gmbh | Volume measuring arrangement |
| CN108814602A (en) * | 2018-05-07 | 2018-11-16 | 哈尔滨理工大学 | A kind of encircling type breast tissue fixed device under the environment for nuclear-magnetism |
| CN109893720A (en) * | 2019-03-01 | 2019-06-18 | 浙江师范大学 | A kind of piezo-stack type pneumatic injection system |
| CN109893720B (en) * | 2019-03-01 | 2021-02-19 | 浙江师范大学 | Piezoelectric stack type pneumatic injection system |
| CN114712622A (en) * | 2022-04-19 | 2022-07-08 | 安徽理工大学 | Implanted magnetic injection pump |
| CN114712622B (en) * | 2022-04-19 | 2023-08-15 | 安徽理工大学 | Implanted magnetic force injection pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 |