CN217849754U

CN217849754U - Atmospheric low-temperature microwave plasma medical surface treatment instrument

Info

Publication number: CN217849754U
Application number: CN202221966043.1U
Authority: CN
Inventors: 郭峰; 张朝阳; 傅文杰; 黎晓云; 鄢扬; 王宇
Original assignee: Kunshan Plaux Electronics Technology Co ltd
Current assignee: Kunshan Plaux Electronics Technology Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-18
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses a medical surface treatment appearance of atmosphere low temperature microwave plasma belongs to the medical equipment field. The device comprises a shell, wherein a plasma torch, a microwave generator and a carrying disc for placing an object to be processed are arranged in the shell, and the output end of the microwave generator is connected with the plasma torch; the plasma torch is arranged in the shell and close to the top surface of the shell, can move linearly in a horizontal plane and is connected with the gas supply device through a gas pipe; a nozzle of the plasma torch is vertically downward, and the carrying disc is arranged at a corresponding position below the plasma torch; the peripheral side surface of the shell is provided with a plug which can be communicated with an external power supply. The utility model adopts the microwave generator to provide energy for the plasma torch so as to excite the frequency of the plasma, thereby achieving better surface treatment effect; the plasma torch can move along the X direction, the object stage can move along the Y direction, and the surface treatment is more sufficient.

Description

Atmospheric low-temperature microwave plasma medical surface treatment instrument

Technical Field

The utility model relates to a medical equipment field especially relates to a medical surface treatment appearance of atmosphere low temperature microwave plasma.

Background

The plasma is an electric neutral aggregation state formed after gas is ionized, and comprises electrons, ions, neutral particles, free active groups, photons and other particles, and the total number of positive charges and the total number of negative charges are almost equivalent in value. Compared with other physical and chemical methods, the plasma has higher temperature and energy density and has bright optical, electrical and chemical characteristics. The plasma generated by the atmospheric low-temperature plasma surface treatment instrument has high particle kinetic energy and chemical activity, and can be used for treating the surfaces of materials such as high-molecular polymers, plastics, glass, metals, ceramics and the like, thereby achieving the purposes of cleaning, activating, disinfecting, sterilizing, coating and the like.

The traditional medical surface treatment instrument with low-temperature plasma often needs vacuum pumping, is complex in configuration, and has the disadvantages that the treatment object is secondarily polluted, the treatment efficiency is low, and the equipment purchase and maintenance cost is high because metal sputtering generated by bias voltage is inevitable if a cavity and an electrode are made of metal.

The common atmospheric low-temperature plasma medical surface treatment instrument has the excitation frequency of medium frequency (20 KHz-100 KHz) and radio frequency (13.56 MHz), low excitation frequency and ionization rate, and sometimes unsatisfactory effects of discharge treatment such as sterilization and activation.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a medical surface treatment instrument of atmosphere low temperature microwave plasma with high excitation frequency.

The technical scheme of the utility model is that:

an atmospheric low-temperature microwave plasma medical surface treatment instrument comprises a shell, wherein a plasma torch, a microwave generator and a carrying disc for placing an article to be treated are arranged in the shell, and the output end of the microwave generator is connected with the plasma torch; the plasma torch is arranged in the shell and close to the top surface of the shell, can linearly move in a horizontal plane and is connected with the gas supply device through a gas pipe; the spray head of the plasma torch is vertically downward, and the carrying disc is arranged at a corresponding position below the plasma torch; the peripheral side surface of the shell is provided with a plug which can be communicated with an external power supply;

the plasma torch, the microwave generator and the plug are electrically connected with the control center.

Preferably, a door is arranged on one side surface of the shell, the direction parallel to the door in the horizontal plane is X, and the direction perpendicular to the X direction in the horizontal plane is Y direction; a first linear driving mechanism is arranged in the shell and close to the top surface, the driving end of the first linear driving mechanism is arranged along the X direction, and the driving end of the first linear driving mechanism is fixedly connected with the plasma torch and can drive the plasma torch; the first linear driving mechanism is electrically connected with the control center.

Preferably, a second linear driving mechanism is arranged below the plasma torch in the housing, a driving end of the second linear driving mechanism is arranged along the Y direction, and the driving end of the second linear driving mechanism is fixedly connected with the object carrying disc and can drive the object carrying disc; the second linear driving mechanism is electrically connected with the control center.

Preferably, the two ends of the fixed end of the first linear driving mechanism are fixedly provided with support frames extending downwards along the vertical direction, one end, far away from the first linear driving mechanism, of each support frame is fixedly provided with a bearing plate, the upper surface of each bearing plate is fixedly provided with a second linear driving mechanism, the driving end of each second linear driving mechanism is arranged along the Y direction, and is fixedly connected with a loading disc and can drive the loading disc to enter and exit the door.

Preferably, the plasma torch comprises an outer tube, a discharge electrode and a spray head, wherein an inner tube for conveying gas is arranged in the outer tube in a hollow and coaxial manner, and a resonant cavity is formed between the inner tube and the outer tube; and the wall of the outer pipe is provided with an interface communicated with the resonant cavity, and the output end of the microwave generator is connected to the resonant cavity through the interface.

Preferably, a human body identification control switch and a data interface for transmitting data are arranged outside the shell, and the human body identification control switch and the data interface are electrically connected with the control center.

Preferably, the plasma torch is a single or multiple torch head.

Preferably, the carrying plate is an insulating carrying plate.

Preferably, a flow meter for displaying the gas flow is arranged on the peripheral side surface of the shell, and the flow meter is installed on a pipeline of the gas pipe; the side surfaces of the shell are also provided with a plurality of fans communicated with the inside and the outside of the shell.

Preferably, the peripheral side surface where the door is opened is defined as a front surface, the surface opposite to the front surface is a back surface, and a display screen is further arranged on the front surface and electrically connected with the control center.

The utility model has the beneficial technical effects that:

1. a microwave generator is adopted to provide energy for a plasma torch so as to excite the frequency of plasma, thereby achieving better surface treatment effect;

2. the plasma torch can move along the X direction, the objective table can move along the Y direction, and the surface treatment is more sufficient;

3. the shell is provided with intelligent accessories such as a human body recognition control switch, a data interface and the like, so that the use and the operation are more convenient.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the back structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the housing of the present invention;

wherein:

1. a housing; 2. a plasma torch; 3. a microwave generator; 4. a carrier plate; 5. an air tube; 6. a plug; 7. a control center; 8. opening the door; 9. a first linear drive mechanism; 10. a second linear drive mechanism; 11. a fan; 12. a data interface; 13. a flow meter; 14. a display screen; 15. a power switch; 16. starting a switch; 17. a support frame; 18. carrying a plate; 19. three-color lamp.

Detailed Description

In order to make the technical means of the present invention clearer and to implement the present invention according to the content of the specification, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples, which are used for illustrating the present invention and are not intended to limit the scope of the present invention.

Example (b): fig. 1 to 3, the present embodiment provides an atmospheric low-temperature microwave plasma medical surface treatment instrument, which comprises a housing 1, and a plasma torch 2, a microwave generator 3 and a carrying tray 4 for placing an article to be treated are arranged in the housing. The carrying plate is positioned at the position below the plasma torch.

The plasma torch is a discharge load and comprises an outer tube, a discharge electrode and a spray head, wherein an inner tube for conveying gas is arranged in the outer tube in a hollow and coaxial mode, and a resonant cavity is formed between the inner tube and the outer tube. The inner tube is connected with an air supply device through an air tube. The gas supply device is provided with a flow valve for controlling the gas flow. The plasma torch is arranged in the outer shell and close to the top surface of the outer shell, the spray head of the plasma torch faces downwards vertically, and the plasma torch can move linearly in a horizontal plane.

The output of the microwave generator 3 is connected to the plasma torch. The wall of the outer tube of the plasma torch is provided with an interface communicated with the resonant cavity, and the output end of the microwave generator is connected to the resonant cavity through the interface, so that energy is provided for the gas to be ionized.

Preferably, the excitation frequency of the microwave generator is 2.45GHz, and under the same low-power condition, when the excitation frequency is higher, the ionization rate is higher, so that the temperature is really low, and the treatment effect is good.

The plasma torch is characterized by further comprising a control center 7, and the plasma torch, the microwave generator and the gas supply device are electrically connected with the control center. The control center comprises an electric control assembly and a gas circuit control assembly, and the automatic control of the device circuit and the detection control of the gas flow can be realized through the control center. The peripheral side surface of the shell is provided with a plug 6 which can be communicated with an external power supply, and the plug is electrically connected with the control center. The casing is also provided with a power switch 15 and a starting switch 16. When the plug is communicated with an external power supply, the power switch is turned on, and the whole device is in a charged state; and opening the starting switch to start the device to work.

Preferably, the inner layer of the shell is provided with an electromagnetic wave shielding layer. The electromagnetic wave shielding layer generally includes two layers, one of which is a protective layer made of polytetrafluoroethylene; the other layer is an aluminum plate layer, and the surface of the aluminum plate is coated with an insulating material.

The process gas used according to the treatment requirements may be one or a mixture of two or more of compressed air, oxygen, nitrogen, helium, argon or other inert gases, and vaporized water vapor, ethanol, hydrogen peroxide and other monomers may be mixed according to the treatment requirements.

In order to improve the treatment effect, the plasma torch 2 may be a single nozzle, a multi-nozzle, or a matrix type.

A door 8 is arranged on the side surface of the periphery of the shell. The peripheral side surface where the door is opened is defined as a front surface, and the surface opposite to the front surface is a back surface. In order to facilitate the observation of the treatment inside the housing, the door can be made of a transparent material, such as transparent glass or transparent plastic. And setting the direction parallel to the door opening in the horizontal plane as X, and the direction vertical to the X direction in the horizontal plane as Y direction.

A first linear driving mechanism 9 is arranged in the shell 1 and close to the top surface, the driving end of the first linear driving mechanism is arranged along the X direction, and the driving end of the first linear driving mechanism is fixedly connected with the plasma torch 2; the first linear driving mechanism is electrically connected with the control center.

The form of the first linear driving mechanism can be selected in various ways, such as a linear motor, a linear air cylinder, a linear electric cylinder or a screw rod, and can also be a combination of a slide rail and a motor; the specific form is not limited. The first linear driving mechanism is fixed to the housing in various ways, for example, a mounting bracket is fixedly arranged on the top surface of the housing, and the first linear driving mechanism is fixedly connected with the mounting bracket through a fixing screw.

The carrying plate 4 is arranged at a corresponding position below the plasma torch 1. To enhance the surface treatment and facilitate the placement or removal of items, the carrier tray may be arranged to move in the Y direction and may be able to approach and extend from the door 8. A second linear driving mechanism 10 is arranged below the plasma torch in the shell, the driving end of the second linear driving mechanism is arranged along the Y direction, and the driving end of the second linear driving mechanism is fixedly connected with the object carrying disc and can drive the object carrying disc; the second linear driving mechanism is electrically connected with the control center.

In order to cooperate with the carrier plate to extend from the door, the door may be resiliently abutted against the housing by a resilient member. The second linear driving mechanism drives the object carrying disc to open the door when the door is normally closed and the object to be processed is taken and placed. The loading plate returns to the inner part of the shell, and then the door is opened and is closed again under the action of the elastic force.

The form of the second linear drive mechanism is the same as the form of the first linear drive mechanism. The second linear drive mechanism may be mounted in a variety of ways, for example, directly on the back of the housing. For example, as shown in fig. 3, two ends of a fixed end of the first linear driving mechanism are both fixedly provided with a support frame 17 extending vertically downward, one end of the support frame away from the first linear driving mechanism is fixedly provided with a bearing plate 18, an upper surface of the bearing plate is fixedly provided with a second linear driving mechanism along the Y direction, a driving end of the second linear driving mechanism moves along the Y direction, and the driving end is fixedly connected with the bearing plate and can drive the bearing plate to move in and out to open the door.

The peripheral side of the shell is provided with a plurality of fans 11 communicated with the inside and the outside of the shell. The fans are all installed on the back of the shell. Preferably, two fans are provided and arranged in an up-down arrangement. The internal temperature can be lowered by the fan.

The shell outside is equipped with human body identification control switch, and human body identification control switch all is connected with control center electric connection. The human body recognition control switch has various forms, such as a fingerprint control switch and an iris switch.

The outer part of the shell is provided with a data interface 12 for transmitting data, and the data interface is electrically connected with the control center. The data interface may be a USB interface or a Type-c interface, etc.

In order to avoid secondary pollution of the treated object, the object carrying disc can be made of insulating materials, such as polytetrafluoroethylene, ceramics, quartz glass and the like.

The peripheral side surface of the shell is provided with a flowmeter 13 for displaying the gas flow, and the flowmeter is arranged on a pipeline of the gas pipe.

The front face is also provided with a display screen 14 which is electrically connected with the control center. The preferred display screen may be a touch screen through which process parameters such as air intake, discharge operation, and movement of the first and second linear drive mechanisms are set.

The front surface of the shell is also provided with a three-color lamp 19 which is electrically connected with the control center and can display the three states of waiting, running and failure of the whole device.

The top surface of the shell is provided with a pipe hole for connecting a gas pipe and other lines inside the shell to the outside of the shell. The pipe hole is sealed.

The utility model discloses a theory of operation is: firstly, the power supply is connected with an external power supply through a plug; and a power switch is turned on to ensure that the high-frequency wire and the air pipe are connected perfectly. And a starting switch is turned on, the fan is turned on, the display screen can automatically retrieve the states of electric control and air circuit control, and normal operation can be performed after self-checking is finished. Then, clicking to open the door, opening the door to open, and ejecting the object carrying disc. After the object to be processed is placed on the object carrying disc, the second linear driving device brings the object carrying disc back, and the door is automatically closed. Secondly, operate through the display screen, transfer out processing parameter, adjust the parameter of admitting air, discharging, adjust the motion of first, two straight line drive arrangement to drive plasma torch and carry the thing dish motion, microwave generator work, plasma torch is normal then begins to discharge, and the discharge state can be looked over through display screen and transparent opening the door, and the trichromatic lamp can show according to waiting for, operation and three kinds of states of trouble. And thirdly, after the plasma treatment is finished, stopping the work of the flow meter, the microwave generator and the plasma torch, and driving the carrying plate to be ejected and opened by the second linear driving device, so that the article can be taken out. Finally, the carrier plate is cleaned.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a medical surface treatment appearance of atmosphere low temperature microwave plasma which characterized in that: the device comprises a shell (1), wherein a plasma torch (2), a microwave generator (3) and a carrying disc (4) for placing an object to be processed are arranged in the shell, and the output end of the microwave generator (3) is connected with the plasma torch; the plasma torch is arranged in the shell and close to the top surface of the shell, can move linearly in a horizontal plane and is connected with a gas supply device through a gas pipe (5); the spray head of the plasma torch is vertically downward, and the object carrying disc (4) is arranged at a corresponding position below the plasma torch; a plug (6) capable of being communicated with an external power supply is arranged on the peripheral side surface of the shell;

the plasma torch, the microwave generator and the plug are electrically connected with the control center (7).

2. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 1, characterized in that: a door (8) is arranged on one side surface of the periphery of the shell, the direction parallel to the door in the horizontal plane is X, and the direction vertical to the X direction in the horizontal plane is Y direction; a first linear driving mechanism (9) is arranged in the shell and close to the top surface, the driving end of the first linear driving mechanism is arranged along the X direction, and the driving end of the first linear driving mechanism is fixedly connected with the plasma torch (2) and can drive the plasma torch; the first linear driving mechanism is electrically connected with the control center.

3. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 2, characterized in that: a second linear driving mechanism (10) is arranged below the plasma torch in the shell, the driving end of the second linear driving mechanism is arranged along the Y direction, and the driving end of the second linear driving mechanism is fixedly connected with the object carrying disc and can drive the object carrying disc; the second linear driving mechanism is electrically connected with the control center.

4. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 2, characterized in that: the two ends of the fixed end of the first linear driving mechanism are fixedly provided with a support frame (17) which extends downwards along the vertical direction, one end, away from the first linear driving mechanism, of the support frame is fixedly provided with a bearing plate (18), the upper surface of the bearing plate is fixedly provided with a second linear driving mechanism (10), the driving end of the second linear driving mechanism is arranged along the Y direction, fixedly connected with a loading plate and capable of driving the loading plate to enter and exit the door (8).

5. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 1, characterized in that: the plasma torch comprises an outer tube, a discharge electrode and a spray head, wherein an inner tube for conveying gas is arranged in the outer tube in a hollow and coaxial mode, and a resonant cavity is formed between the inner tube and the outer tube; and the pipe wall of the outer pipe is provided with an interface communicated with the resonant cavity, and the output end of the microwave generator is connected to the resonant cavity through the interface.

6. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 1, characterized in that: the shell is externally provided with a human body identification control switch and a data interface (12) for transmitting data, and the human body identification control switch and the data interface are electrically connected with the control center.

7. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 1, characterized in that: the plasma torch is a single nozzle or a multi-nozzle.

8. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 1, characterized in that: the carrying plate is an insulated carrying plate.

9. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 1, characterized in that: a flowmeter (13) for displaying gas flow is arranged on the peripheral side surface of the shell and is installed on a pipeline of the gas pipe; the peripheral side surface of the shell is also provided with a plurality of fans (11) which are communicated with the inside and the outside of the shell.

10. The atmospheric low-temperature microwave plasma medical surface treatment instrument according to claim 2, characterized in that: the peripheral side face where the opening door is located is defined as a front face, the face opposite to the front face is a back face, and a display screen (14) is further arranged on the front face and electrically connected with the control center.