CN111383871A

CN111383871A - Be used for medical branch of academic or vocational study to reach accelerator vacuum tube aerating device

Info

Publication number: CN111383871A
Application number: CN201811618176.8A
Authority: CN
Inventors: 王克来; 王建文
Original assignee: Shanghai Zhuoya Medical Technology Co ltd
Current assignee: Shanghai Zhuoya Medical Technology Co ltd
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-07-07

Abstract

The invention relates to a vacuum tube inflating device for a medical accelerator, which comprises: moving the vehicle body: the device comprises a vehicle body bottom plate and a horizontal platform, wherein a vertical plate arranged at the rear end of the vehicle body bottom plate is arranged on the vertical plate; accelerator vacuum tube inflation assembly: including fixing nitrogen cylinder and the molecular pump on vehicle body bottom plate, through relief pressure valve and the three-way valve of fix with screw on the horizontal platform bottom surface, No. 1 mouth of three-way valve pass through the relief pressure valve and be connected with the nitrogen cylinder, No. 2 mouths and the molecular pump of three-way valve are connected, No. 3 mouths and the medical accelerator vacuum tube connection of treating aerifing of three-way valve. Compared with the prior art, the invention has the advantages of safety, reliability, quick vacuum establishment, prolonged service life of the ion pump, convenient operation and the like.

Description

Be used for medical branch of academic or vocational study to reach accelerator vacuum tube aerating device

Technical Field

The invention relates to the field of operation and maintenance of linear accelerators, in particular to a vacuum tube inflating device for a medical accelerator.

Background

The gun filament and the accelerating tube of the medical kodak linear accelerator are assembled in a separated structure, and because the filament is a consumable component, the vacuum is usually required to be firstly broken and then reestablished when the filament is replaced. The method currently used is to introduce nitrogen into the acceleration tube using a clean bag, but during this process it is inevitable that air enters the acceleration tube due to pressure differences and tightness. Air contains oxygen, water vapor and other substances besides nitrogen, and the gases are difficult to be discharged when entering a vacuum system, so that the difficulty of vacuum reestablishment is increased.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a vacuum tube inflating device for a medical accelerator.

The purpose of the invention can be realized by the following technical scheme:

an inflation device for a vacuum tube of a iatrogenic accelerator, the device comprising:

moving the vehicle body: the device comprises a vehicle body bottom plate and a horizontal platform, wherein a vertical plate arranged at the rear end of the vehicle body bottom plate is arranged on the vertical plate;

accelerator vacuum tube inflation assembly: including fixing nitrogen cylinder and the molecular pump on vehicle body bottom plate, through relief pressure valve and the three-way valve of fix with screw on the horizontal platform bottom surface, No. 1 mouth of three-way valve pass through the relief pressure valve and be connected with the nitrogen cylinder, No. 2 mouths and the molecular pump of three-way valve are connected, No. 3 mouths and the medical accelerator vacuum tube connection of treating aerifing of three-way valve.

The bottom surface of the vehicle body bottom plate is provided with 4 universal wheels, and the universal wheels are provided with locking mechanisms.

The automobile body bottom plate on be equipped with respectively with nitrogen cylinder bottom surface and molecular pump bottom surface shape assorted mounting groove, and be equipped with the slipmat in the mounting groove, nitrogen cylinder and molecular pump pass through the floor of side and fix on the automobile body bottom plate.

The vertical plate is provided with a plurality of positioning holes at equal intervals along the vertical direction, and the rear end of the horizontal platform penetrates through the positioning holes in the vertical plate through a shaft pin to perform positioning and adjustment in the vertical direction.

The pressure reducing valve is provided with a pressure gauge.

The front end of the horizontal platform is provided with a horizontal cross rod extending forwards, the horizontal cross rod is provided with 2 supports, and each support is provided with a plastic hoop for fixing a vacuum tube of a medical accelerator to be inflated.

The upper surface of the horizontal platform is also provided with a tray for placing a medical accelerator vacuum tube to be inflated.

And a filter screen is arranged at the outlet of the nitrogen cylinder.

The No. 3 port of the three-way valve is connected with a vacuum tube of the accelerator of the medical accelerator to be inflated through a rubber hose with a plug.

The top end of the vertical plate is provided with a trolley handle.

Compared with the prior art, the invention has the following advantages:

1. safe and reliable: the pressure reducing valve assembled behind the nitrogen cylinder of the device avoids the damage of components caused by sudden change of pressure.

2. The vacuum is established for a short time: whole device keeps apart with external, and the nitrogen gas of pouring into is pure, and when establishing the vacuum, the intraductal gas of acceleration can furthest be arranged, and the ion pump reaches operating condition easily.

3. The service life of the ion pump is prolonged: the accelerating tube is ensured not to be polluted, and the service life of the ion pump can be greatly prolonged.

4. The operation is convenient: the vacuum tube of the accelerator for medical purposes to be inflated is placed on the tray, and when the vacuum tube needs to be inflated and vacuumized, the vacuum tube is fixed on the horizontal cross bar through the hoop, then corresponding inflation and vacuumizing operations are carried out, and the vacuum performance is ensured by the plug.

Drawings

Fig. 1 is a front view of the present invention.

The notation in the figure is:

1. the device comprises a vehicle body bottom plate, 2 vertical plates, 3 horizontal platforms, 4 nitrogen gas bottles, 5 molecular pumps, 6 pressure reducing valves, 7 three-way valves, 8 medical accelerator vacuum tubes to be inflated, 9 horizontal cross rods, 10 trays.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

Examples

As shown in fig. 1, the present invention provides an inflator for a vacuum tube of a kodak accelerator, the inflator comprising:

moving the vehicle body: the trolley comprises a trolley body bottom plate 1, a vertical plate 2 arranged at the rear end of the trolley body bottom plate 1 and a horizontal platform 3 arranged on the vertical plate 2, wherein a trolley handle is arranged at the top end of the

vertical plate

2, 4 universal wheels are arranged on the bottom surface of the trolley body bottom plate 1, and locking mechanisms are arranged on the universal wheels and used for being stopped at fixed operation positions;

accelerator vacuum tube inflation assembly: including fixing nitrogen cylinder 4 and molecular pump 5 on vehicle body bottom plate 1, fix pressure-reducing valve 6 and three-way valve 7 on horizontal platform 3 bottom surface through the screw, No. 1 mouth of three-way valve 7 is connected with nitrogen cylinder 4 through pressure-reducing valve 6, No. 2 mouth of three-way valve 7 is connected with molecular pump 5, No. 3 mouth of three-way valve 7 is connected with medical dache accelerator vacuum tube 8 of treating aerifing through the plastic hose that has the end cap, 4 exits in nitrogen cylinder are equipped with the filter screen, filter out the impurity that probably exists.

Be equipped with respectively on the vehicle body bottom plate 1 with 4 bottom surfaces of nitrogen cylinder and the 5 bottom surface shape assorted mounting grooves of molecular pump, and be equipped with the slipmat in the mounting groove, nitrogen cylinder 4 is fixed on vehicle body bottom plate 1 through the floor of side with molecular pump 5, guarantees nitrogen cylinder 4 and molecular pump 5's stability, prevents to leak gas.

A plurality of locating holes are formed in the vertical plate 2 at equal intervals in the vertical direction, and the rear end of the horizontal platform 3 penetrates through the locating holes in the vertical plate 2 through a shaft pin to be located and adjusted in the vertical direction so as to adapt to the scene requirements of different heights.

The pressure reducing valve 6 is provided with a pressure gauge to ensure whether the high-pressure nitrogen is reduced to normal atmospheric pressure.

The front end of horizontal platform 3 is equipped with the horizontal pole 9 that stretches out forward, is equipped with 2 supports on the horizontal pole 9, is equipped with the plastics staple bolt that is used for fixing the medical accelerator vacuum tube 8 that treats aerify on every support, also can set up a plurality of staple bolts, guarantees to stabilize.

The upper surface of the horizontal platform 3 is also provided with a tray 10 for placing a medical accelerator vacuum tube 8 to be inflated.

The working principle of the invention is as follows:

promote the shallow handle and will remove the automobile body and place suitable position, and adopt locking mechanism fixed position on the universal wheel, it gets down to the accelerator vacuum tube from the tray to need aerify medical department, install on the staple bolt, and connect on the three-way valve through the rubber hose that has the end cap, utilize three-way valve and relief pressure valve, open the relief pressure valve when needs nitrogen gas injection, reduce nitrogen gas to atmospheric pressure, pour into dry pure and clean nitrogen gas into the accelerating tube through connecting tube and three-way valve, aerify, when aerifing and finishing and need set up the vacuum again, only need close the relief pressure valve, and close the valve that links to each other with it, reach the purpose of gaseous and partial physics isolation in vacuum, when needing to carry out the evacuation, then open the passageway of molecular pump and vacuum tube, take down after accomplishing the evacuation and carry out the evacuation operation of aerifing of next vacuum tube.

Claims

1. An inflation device for a vacuum tube of a surgical accelerator, the device comprising:

moving the vehicle body: comprises a vehicle body bottom plate (1), a vertical plate (2) arranged at the rear end of the vehicle body bottom plate (1) and a horizontal platform (3) arranged on the vertical plate (2);

accelerator vacuum tube inflation assembly: including nitrogen cylinder (4) and molecular pump (5) of fixing on vehicle body bottom plate (1), through relief pressure valve (6) and three-way valve (7) of fix with screw on horizontal platform (3) bottom surface, No. 1 mouth of three-way valve (7) be connected with nitrogen cylinder (4) through relief pressure valve (6), No. 2 mouths and molecular pump (5) of three-way valve (7) are connected, No. 3 mouths and the medical branch of the medical science that treats gas filled of three-way valve (7) reach accelerator vacuum tube (8) and are connected.

2. The vacuum tube inflator for the iatrogenic accelerator according to claim 1, wherein 4 universal wheels are arranged on the bottom surface of the vehicle body bottom plate (1), and locking mechanisms are arranged on the universal wheels.

3. The vacuum tube inflating device for the accelerator in the medical department as claimed in claim 1, wherein the vehicle body bottom plate (1) is provided with installation grooves matched with the shapes of the bottom surface of the nitrogen cylinder (4) and the bottom surface of the molecular pump (5), anti-skid pads are arranged in the installation grooves, and the nitrogen cylinder (4) and the molecular pump (5) are fixed on the vehicle body bottom plate (1) through rib plates on the side surfaces.

4. The vacuum tube inflation device for the iatrogenic accelerator according to claim 1, wherein the vertical plate (2) is provided with a plurality of positioning holes at equal intervals along the vertical direction, and the rear end of the horizontal platform (3) is positioned and adjusted in the vertical direction by penetrating through the positioning holes on the vertical plate (2) through a shaft pin.

5. The vacuum tube inflator for an accelerator in accordance with claim 1, wherein the pressure reducing valve (6) is provided with a pressure gauge.

6. The vacuum tube inflator for the iatrogenic accelerator according to claim 1, wherein the front end of the horizontal platform (3) is provided with a horizontal cross bar (9) extending forwards, the horizontal cross bar (9) is provided with 2 brackets, and each bracket is provided with a plastic hoop for fixing the iatrogenic accelerator vacuum tube (8) to be inflated.

7. The vacuum tube inflation device for the iatrogenic accelerator according to claim 1, wherein the upper surface of the horizontal platform (3) is further provided with a tray (10) for placing the iatrogenic accelerator vacuum tube (8) to be inflated.

8. The vacuum tube inflator for the iatrogenic accelerator according to claim 1, wherein a filter screen is arranged at the outlet of the nitrogen cylinder (4).

9. The vacuum tube inflation device for the iatrogenic accelerator according to claim 1, wherein the port 3 of the three-way valve (7) is connected with the iatrogenic accelerator vacuum tube (8) to be inflated through a rubber hose with a plug.

10. The vacuum tube inflation device for the iatrogenic accelerator according to claim 1, wherein a cart handle is arranged at the top end of the vertical upright plate (2).