Stepless light shutter for reducing inhaled particulate matters

Abstract

The utility model discloses a stepless light chopper for reducing suction type particulate matters, which comprises a light chopper main body, a light shading component and a control part, the main body is provided with a through hole penetrating along the axis, the through hole is used for laser to pass through, the light shading component is arranged in the through hole, the light shading component is used for adjusting the size of the through hole, and the light shading component comprises a control part and a plurality of blade modules. The multiple blade modules are circumferentially arranged around the axis of the through hole, the multiple blade modules are mutually stacked and surround the axis of the through hole to form a light passing interval, and the control piece is connected with the blade modules and controls the multiple blade modules to be close to or away from the axis of the through hole at the same time so as to adjust the size of the light passing interval. The size of the light passing interval is adjusted by moving the multiple blade modules at the same time, then the size of the laser spot is adjusted, the overall size can be reduced by arranging the shading assembly in the through hole, and then the overall structure is more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of shutters, and more specifically to a stepless shutter for reducing inhalable particulate matter. Background Art

[0002] In laser surgery, when performing laser / intense pulsed light treatment on a patient, the treatment area often varies in size, but the light spots emitted by the laser / intense pulsed light treatment instrument are often of a relatively fixed size or have a limited adjustable range, and linear stepless adjustment of the size cannot be achieved. At this time, a shutter is needed to assist in controlling the size of the light spot finally hitting the treatment area. Most of the existing shutters are plastic plates attached to the device, with several round holes of different diameters, or are cut out by doctors themselves from white paper with different sizes for standby. This not only easily gets lost but also is rather troublesome to select different apertures each time, so there is room for improvement. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a stepless shutter for reducing inhalable particulate matter that can adjust the aperture size for convenient use.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A stepless shutter for reducing inhalable particulate matter, including a shutter main body, a through hole penetrating along the axis is provided on the main body, and the through hole is used for the laser to pass through;

[0006] A light-shielding component, the light-shielding component is arranged in the through hole, the light-shielding component is used for adjusting the size of the through hole, the light-shielding component includes a control member and a plurality of blade modules, the plurality of blade modules are circumferentially arranged around the axis of the through hole, the plurality of blade modules are stacked on each other and surround the axis of the through hole to form a light-passing interval, and the control member is connected to the blade module and simultaneously controls the plurality of blade modules to move closer to or away from the axis of the through hole to adjust the size of the light-passing interval.

[0007] As a further improvement of the utility model, the moving path of the blade module is a curve.

[0008] As a further improvement of the utility model, the blade module includes a sheet body, an installation chamber is formed around the through hole, and one end of the sheet body is provided with a rotating rod and is rotatably connected to the installation chamber through the rotating rod.

[0009] As a further improvement of the utility model, the control member includes a rotating ring, a circumferentially arranged control chamber is provided in the main body, an opening is formed on one side of the main body corresponding to the control chamber, the rotating ring is rotatably arranged in the control chamber, one end of each of the plurality of rotating rods penetrates into the control chamber and is provided with a gear, and the gear is threadedly connected to the inner wall of the rotating ring.

[0010] As a further improvement of the present utility model, multiple said gears are arranged horizontally.

[0011] As a further improvement of the present utility model, a control rod is provided corresponding to the opening of the rotating ring, the control rod is used to drive the rotating ring to rotate, and the opening is arc-shaped to limit the moving range of the control rod.

[0012] As a further improvement of the present utility model, the side surface of the sheet body corresponding to the light passing interval is an arc surface.

[0013] As a further improvement of the present utility model, an air extraction chamber is formed inside the main body, and a plurality of air extraction holes communicating with the air extraction chamber are provided circumferentially inside the through hole.

[0014] As a further improvement of the present utility model, a connecting portion extends outward from the side wall of the main body, an air extraction channel communicating with the air extraction chamber is formed inside the connecting portion, and a connecting end is formed at one end of the air extraction channel corresponding to the connecting portion away from the main body.

[0015] Advantages of the present utility model:

[0016] 1. By simultaneously moving multiple blade modules, the size of the light passing interval is adjusted, and then the size of the laser spot is adjusted;

[0017] 2. By arranging the light shielding component inside the through hole, the overall volume can be reduced, and thus the overall structure is more compact. Description of the drawings

[0018] Figure 1 Schematic diagram of the overall installation of the present utility model;

[0019] Figure 2 Schematic diagram of the light passing interval of the present utility model;

[0020] Figure 3 Schematic cross-sectional view of the overall installation of the present utility model;

[0021] Figure 4 Schematic diagram of the installation of the control member and the blade module of the present utility model.

[0022] Reference numerals: 1, main body; 2, through hole; 3, shielding component; 4, control member; 5, blade module; 6, light passing interval; 7, installation chamber; 8, rotating rod; 9, rotating ring; 10, control chamber; 11, opening; 12, gear; 13, control rod; 14, arc surface; 15, air extraction chamber; 16, air extraction hole; 17, connecting portion; 18, air extraction channel; 19, connecting end. Detailed implementation manners

[0023] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Among them, the same components are denoted by the same reference numerals.

[0024] As Figures 1-4 shown, a stepless light shutter for reducing inhalable particulate matter includes a light shutter main body 1, and a through hole 2 penetrating along the axis is provided on the main body 1, and the through hole 2 is used for the laser to pass through.

[0025] Preferably, it further includes a light shielding component, and the light shielding component is arranged in the through hole 2. The light shielding component is used to adjust the size of the through hole 2 to control the size of the light spot passing through the laser. The light shielding component includes a control member 4 and a plurality of blade modules 5. Specifically, in this embodiment, the number of blade modules 5 is 8, and the plurality of blade modules 5 are circumferentially arranged around the axis of the through hole 2. The plurality of blade modules 5 are stacked on top of each other and form a light passing interval 6 around the axis of the through hole 2. The mutually stacked blade modules 5 make their upper end faces form a shielding surface. Further, an absorbent layer or a protective layer can be coated on the shielding surface to avoid damage to the shielding surface caused by the laser. The shielding surface is used to shield part of the laser to control the laser to pass through the through hole 2 only from the light passing interval 6, thereby realizing the adjustment of the light spot size. The control member 4 is connected to the blade module 5 and simultaneously controls the plurality of blade modules 5 to move closer to or away from the axis of the through hole 2 to adjust the size of the light passing interval 6.

[0026] During use, the main body 1 is connected to the laser emitting component so that the axis of the laser emitted by the laser emitting component is aligned with the axis of the through hole 2. Then, the operator controls the movement of the plurality of blade modules 5 through the control member 4, thereby adjusting the size of the light passing interval 6, and further realizing the adjustment of the light spot size.

[0027] Preferably, the movement path of the blade module 5 is a curve. Through the curve movement mode, it can be ensured that there will be no gap between adjacent blade modules 5 at different positions, resulting in the failure of the light spot size adjustment.

[0028] For the curvilinear movement of the blade module 5, the blade module 5 includes a blade body, an installation chamber 7 is formed around the through hole 2, and one end of the blade body is provided with a rotating rod 8 and is rotatably connected to the installation chamber 7 through the rotating rod 8.

[0029] Preferably, the control member 4 includes a rotating ring 9, and a circumferentially arranged control chamber 10 is provided inside the main body. Specifically, the control chamber 10 is arranged corresponding to the lower end of the installation chamber 7, and an opening 11 is formed on the lower end face of the main body corresponding to the control chamber 10. The rotating ring 9 is rotatably arranged in the control chamber 10, and one end of each of the plurality of rotating rods 8 penetrates into the control chamber 10 and is provided with a gear 12, and the gear 12 is threadedly connected to the inner wall of the rotating ring 9.

[0030] During use, the rotating ring 9 is rotated through the opening 11. Due to the threaded connection between the gear 12 and the rotating ring 9, multiple gears 12 can rotate simultaneously in the same direction. Then, the rotating rod 8 drives the multiple sheet bodies to move simultaneously, thereby realizing the simultaneous control of multiple blade modules 5, and further realizing the stepless adjustment of the size of the light passing interval 6. At the same time, the control method of the rotating ring 9 and the gear 12 makes the adjustment very convenient for intraoperative use.

[0031] Preferably, in order to further reduce the overall volume, multiple gears 12 are arranged horizontally, which can effectively reduce the required thickness of the rotating ring 9 to reduce the size of the control chamber 10.

[0032] Preferably, the rotating ring 9 is provided with a control rod 13 corresponding to the opening 11. The control rod 13 is used to drive the rotation of the rotating ring 9. The opening 11 is arc-shaped to limit the moving range of the control rod 13, thereby preventing the rotating ring 9 from rotating too much and causing the sheet body to collide with the installation chamber 7 and be damaged.

[0033] Preferably, the side surface of the sheet body corresponding to the light passing interval 6 is an arc surface 14, in order to make the light passing interval 6 closer to a circle, which is convenient for medical staff to use.

[0034] Preferably, an air extraction chamber 15 is formed in the main body 1. Specifically, the air extraction chamber 15 is arranged corresponding to the upper end of the installation chamber 7, and a plurality of air extraction holes 16 communicating with the air extraction chamber 15 are circumferentially arranged on the inner periphery of the through hole 2.

[0035] During use, an external air extractor is connected to the air extraction chamber 15. The air extractor extracts dust located between the light shielding component and the laser emitting component through the air extraction chamber 15 and the air extraction holes 16, thereby reducing the adverse effects of dust on the laser, and at the same time being able to suck away the smoke and dust to improve the comfort of the patient.

[0036] Preferably, a connecting portion 17 extends outward from the side wall of the main body 1. An air extraction channel 18 communicating with the air extraction chamber 15 is formed in the connecting portion 17, and a connecting end 19 is formed at the end of the connecting portion 17 away from the main body 1 corresponding to the air extraction channel 18.

[0037] During use, the air extraction chamber 15 is connected to the connecting end 19 to achieve the air extraction effect. The extended connecting portion 17 can make the connecting end 19 in an independent state, which is convenient for connecting the connecting end 19 to the air extractor.

[0038] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A stepless shade for reducing inhalable particulate matter, characterized in that: It comprises a shutter body (1), the body (1) is provided with a through hole (2) penetrating along the axis, the through hole (2) is used for allowing laser to pass through; A shading component, the shading component is arranged in the through hole (2), the shading component is used to adjust the size of the through hole (2), the shading component comprises a control component (4) and a plurality of blade modules (5), the plurality of blade modules (5) are arranged circumferentially around the axis of the through hole (2), the plurality of blade modules (5) are stacked on each other and surround the axis of the through hole (2) to form a light-transmitting interval (6), the control component (4) is connected to the blade modules (5) and simultaneously controls the plurality of blade modules (5) to move closer to or farther from the axis of the through hole (2) so as to adjust the size of the light-transmitting interval (6); The moving path of the blade module (5) is curved; The blade module (5) comprises a sheet body, a mounting chamber (7) is formed around the through hole (2), and a rotating rod (8) is provided at one end of the sheet body and is rotatably connected to the mounting chamber (7) via the rotating rod (8); The control member (4) comprises a rotating ring (9), a control chamber (10) arranged circumferentially in the main body, an opening (11) is formed on one side of the main body corresponding to the control chamber (10), the rotating ring (9) is rotatably arranged in the control chamber (10), one end of each of the plurality of rotating rods (8) penetrates into the control chamber (10) and is provided with a gear (12), and the gear (12) is threadedly connected to the inner wall of the rotating ring (9).

2. The stepless light shield for reducing inhalable particulate matter according to claim 1, characterized in that: The plurality of gears (12) are arranged at the same level.

3. The stepless light shield for reducing inhalable particulate matter according to claim 1, characterized in that: The rotating ring (9) is provided with a control rod (13) corresponding to the opening (11), and the control rod (13) is used to drive the rotating ring (9) to rotate. The opening (11) is arc-shaped to limit the movement range of the control rod (13).

4. The stepless light shield for reducing inhalable particulate matter according to claim 1, characterized in that: The side surface of the sheet body corresponding to the light-transmitting area (6) is a curved surface (14).

5. The stepless light shield for reducing inhalable particulate matter according to claim 1, characterized in that: An air extraction chamber (15) is formed in the main body (1), and a plurality of air extraction holes (16) in communication with the air extraction chamber (15) are provided in the circumferential direction of the through hole (2).

6. The stepless light shield for reducing inhalable particulate matter according to claim 5, characterized in that: The side wall of the main body (1) extends outward to form a connecting portion (17), and an exhaust passage (18) communicating with the exhaust chamber (15) is formed in the connecting portion (17). The exhaust passage (18) forms a connecting end (19) corresponding to an end of the connecting portion (17) away from the main body (1).

Images