Actuator suitable for magnetic field environment, piston type injection device and control method

A technology of injection devices and actuators, which is applied in the direction of hypodermic injection devices, syringes, and medical devices, and can solve problems such as unfavorable drive control precision and mutual interference

Pending Publication Date: 2019-04-26
杨斌堂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the application of the magnetic environment, the environment itself already has a magnetic field. When the driving method also adopts the electromagnetic driving method, the two magnetic fields will interfere with each other, which is not conducive to the improvement of the precision of the driving control.

Method used

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  • Actuator suitable for magnetic field environment, piston type injection device and control method
  • Actuator suitable for magnetic field environment, piston type injection device and control method
  • Actuator suitable for magnetic field environment, piston type injection device and control method

Examples

Experimental program
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Effect test

no. 1 example

[0072] Such as figure 1 Shown is the basic structure of the first embodiment of the present invention.

[0073] The controllable stopper 100 includes a first channel 101 and a second channel 102. The controllable stopper 100 also includes a first internal excitation deformation body 500 and a second internal excitation deformation body respectively located in the first channel 101 and the second channel 102. Morph 600;

[0074] Both the first channel 101 and the second channel 102 are provided with a moving contact body 103; the first channel 101 and the second channel 102 are both narrowed from the width along the axial direction, forming a wide mouth and a narrow mouth;

[0075] In the first passage 101, the two ends of the first internal excitation deformation body 500 in the deformation direction are respectively connected to the narrow opening of the first passage 101 and the moving contact body 103;

[0076] In the second channel 102, the two ends of the second interna...

no. 2 example

[0104] Such as image 3 Shown, the second embodiment of the present invention.

[0105] The second embodiment is a preferred example of the basic embodiment and also a preferred example of the first embodiment.

[0106] The actuator applicable to a magnetic field environment also includes a platform structure 901 and a base 902;

[0107] The platform structure 901 is fastened to the moving part 300;

[0108] The moving part 300 is set on the structure 200, and the structure 200 is slidably set on the base 902;

[0109] An included angle is formed between the sliding direction of the structure body 200 and the moving direction of the moving part 300 .

[0110] How the second embodiment works

[0111] The movement of the moving part 300 can drive the platform structure 901 to move along the first direction;

[0112] The movement of the structure body 200 relative to the base 902 can drive the moving part 300 to move in the second direction, so that the platform structure ...

no. 3 example

[0115] Such as Figure 4 Shown, the third embodiment of the present invention. The third embodiment is a preferred example of the first embodiment.

[0116] A piston type injection device provided according to the present invention includes the actuator suitable for use in a magnetic field environment, and the piston type injection device further includes a syringe 907;

[0117]One end of the moving part 300 is fastened to the piston 9071 of the syringe 907;

[0118] The piston type injection device further includes a displacement sensor 908; the displacement sensor 908 is arranged between the sliding block 105 and the limiting sliding groove 106;

[0119] In addition to the one controllable stopper 100 included in the actuator suitable for use in a magnetic field environment, the piston type injection device also includes another controllable stopper 100, wherein the other controllable stopper The device 100 is penetrated by the other end of the moving part 300, and the ho...

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PUM

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Abstract

The invention provides an actuator suitable for a magnetic field environment, a piston type injection device and a control method. According to the actuator, a moving part (300) is arranged on a structural body (200) in a sliding fit mode; controllable dog drivers (100) can lock and release the moving part (300); and the two ends in the deformation direction of an external excitation deformable body (400) are connected to the controllable dog drivers (100) and the structural body (200) correspondingly. The actuator is a non-magnetic motion platform, the deformation of the excitation deformablebody is controlled in a non-magnetic energy excitation mode, and therefore the moving part is driven by utilizing the deformation; for the driving of the moving part, long strokes are achieved through accumulation of short strokes; and by means of the two controllable dog, real-time motion stopping and positioning at any position in a single-step stroke can be achieved.

Description

technical field [0001] The invention relates to the field of precise driving of a non-magnetic excitation source, in particular to an actuator, a piston type injection device and a control method suitable for a magnetic field environment. Background technique [0002] The traditional precision drive mostly adopts the electromagnetic drive method, which uses the electromagnetic principle to obtain a magnetic field, thereby applying a magnetic force to the magnetically sensitive components located in the magnetic field, and then realizing the drive of the magnetically sensitive components. [0003] However, in the application of a magnetic environment, the environment itself already has a magnetic field. When the driving method is also an electromagnetic driving method, the two magnetic fields will interfere with each other, which is not conducive to the improvement of the precision of the driving control. Contents of the invention [0004] In view of the defects in the prio...

Claims

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Application Information

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IPC IPC(8): A61M5/20A61M5/31H02N2/02
CPCA61M5/20A61M5/2033A61M5/31A61M2005/2006A61M2205/19A61M2205/33H02N2/02
Inventor 杨斌堂
Owner 杨斌堂
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