Display mechanism convenient for observing grinding of injection needle

Abstract

The utility model relates to a display mechanism, in particular to a display mechanism convenient for observing grinding of an injection needle. The display mechanism is composed of a positioning support, a microscopic camera and a displayer, the microscopic camera is arranged on the positioning support, and the microscopic camera is connected with the displayer. According to the display mechanism, the tip of the injection needle can be shot by the microscopic camera and then amplified and displayed on the display, so that the descending distance of the injection needle can be conveniently and clearly observed, the distance between the injection needle and the grinding wheel can be effectively controlled, the injection needle and the grinding wheel can be ensured to be just contacted and ground, and the contact stress is not too large; the purpose that the injection needle can be polished and cannot be damaged is achieved. Through magnified observation, visual fatigue can be effectively reduced, and then the working intensity is effectively reduced. The problem that an injection needle is prone to damage due to the fact that an existing water dripping system can only lubricate and cannot control the distance between the injection needle and a grinding wheel is solved.

Description

Technical Field

[0001] The utility model relates to a display mechanism, in particular to a display mechanism for conveniently observing the grinding of an injection needle. Background Art

[0002] The IVF micromanipulator needle (or simply the needle) is a hollow glass tube with an outer diameter of approximately 350μm. Its tip is ground into a wedge shape. Needles are typically polished with a grinding wheel. However, due to the high-speed rotation of the grinding wheel and the small diameter of the needle, the needle is weak and can be easily damaged by the grinding wheel. Patent application number CN209477922U discloses an automatic dripping system for washing in vitro fertilization micromanipulator needles. The system consists of an inlet pipe, an inlet valve, a dripping pipe, a bracket, a water container, a water guide pipe, a filter tank, a filter connector, and an outlet pipe. The filter tank and bracket are placed on one side of a grinding workbench. A water outlet is provided on the wall of the filter tank, which is connected to one end of the outlet pipe via a filter connector. The other end of the outlet pipe is connected to a wastewater tank. A dripping pipe is fixed above the bracket, one end of which is fixed to one end of the inlet pipe via an inlet valve. The other end of the inlet pipe is connected to a dedicated water tank, and the other end of the dripping pipe is suspended above the water container. The water container is mounted outside the grinding wheel on the grinding workbench. A water guide pipe is installed at the bottom of the water container, and the outlet of the water guide pipe is located above the filter tank. This automatic dripping system has a simple structure, facilitates needle washing, and lubricates and cools the grinding wheel, solving the problems of inconvenient operation and low efficiency in existing technologies.

[0003] The aforementioned dripping system lubricates the grinding wheel through dripping water, effectively protecting the needle. However, needle damage is not only related to lubrication but also to contact between the needle and the grinding wheel. Furthermore, the small diameter of the needle makes it difficult to observe the distance between the needle tip and the grinding wheel. A large distance between the needle and the grinding wheel prevents the grinding wheel from properly polishing the needle. Furthermore, if the interaction force between the needle and the abrasive material is too strong, the high-speed rotation of the grinding wheel can easily damage the needle tip. Therefore, it is necessary to design a display mechanism that allows for easy observation of needle grinding to address these issues. Summary of the Invention

[0004] The purpose of the utility model is to provide a display mechanism for conveniently observing the grinding of the injection needle, which can effectively control the distance between the injection needle and the grinding wheel, so as to solve the problem that the existing drip system can only lubricate but cannot control the distance between the injection needle and the grinding wheel, resulting in easy damage to the injection needle.

[0005] The technical solution of the utility model is:

[0006] A display mechanism for convenient observation of injection needle grinding consists of a positioning bracket, a micro camera and a display. The characteristics are: the positioning bracket is provided with a micro camera, and the micro camera is connected to the display via a universal serial bus (VGA, DVI, HDMI or USB data cable).

[0007] The positioning bracket is composed of a supporting main rod, a rotating seat, a supporting cross bar and a height adjustment rod. The top end of the supporting main rod is movably installed with a rotating seat through a bearing, the supporting cross bar is inserted on the rotating seat, and the end of the supporting cross bar is inserted with a height adjustment rod. A height adjustment screw is threadedly installed on the end surface of the supporting cross bar on the outside of the height adjustment rod, and the height adjustment screw is abutted against the height adjustment rod to lock the height of the height adjustment rod; the bottom end of the height adjustment rod is fixedly connected to the microscope camera.

[0008] A set screw is threadedly mounted on the top end surface of the rotating seat, and the set screw is abutted against the supporting cross bar to lock the angle and horizontal position of the supporting cross bar.

[0009] Preferably, the model of the microscope camera is a Leica IC90 E stereo microscope camera.

[0010] Preferably, the display model is Advantech PPC-3120 industrial touch panel computer.

[0011] Furthermore, the microscope camera is provided with a wind shield, which is connected to the air source through an air duct.

[0012] The beneficial effects of the present invention are:

[0013] This display mechanism facilitates observation of needle grinding. Using a microscope camera, it captures the needle tip and displays a magnified image on the display. This allows for easy and clear observation of the needle's downward movement, effectively controlling the gap between the needle and the grinding wheel. This ensures that the needle and grinding wheel are in perfect contact during grinding, without excessive contact stress, ensuring that the needle can be ground without damage. This magnified observation effectively reduces visual fatigue and, consequently, workload. This solution addresses the problem of existing drip systems that only provide lubrication but fail to control the gap between the needle and the grinding wheel, leading to needle damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the assembly of the wind hood of the utility model;

[0017] Figure 4 This is a schematic diagram of the use state of the utility model (without wind hood);

[0018] Figure 5 This is a schematic diagram of the utility model (with a wind hood) in use.

[0019] In the figure: 1. Microscope camera, 2. Display, 3. Support main rod, 4. Rotating seat, 5. Support cross bar, 6. Height adjustment rod, 7. Height adjustment screw, 8. Set screw, 9. Air hood, 10. Air duct, 11. Injection needle, 12. Grinding wheel. DETAILED DESCRIPTION

[0020] This display mechanism, which facilitates observation of needle grinding, consists of a positioning bracket, a microcamera 1, and a display 2. The positioning bracket is mounted with the microcamera 1, which is used to photograph the needle tip. Preferably, the microcamera 1 is a Leica IC90 E stereomicroscope camera. The positioning bracket adjusts and positions the microcamera 1. Adjustment of the positioning allows the microcamera 1 to be moved above the needle, placing the needle tip within the adjustable focal length of the microcamera 1. The microcamera 1 is connected to the display 2 via a universal serial bus (VGA, DVI, HDMI, or USB data cable). The display 2 magnifies and displays the image of the needle tip captured by the microcamera 1. This allows for clear and convenient observation of the gap between the needle and the grinding wheel, allowing for adjustment and control of the needle's height. This ensures that the needle contacts the grinding wheel for grinding while also preventing damage from the high-speed rotation of the grinding wheel. Furthermore, magnified observation of the needle tip effectively reduces visual fatigue and significantly reduces labor intensity. Preferably, the display 2 is Advantech PPC-3120 industrial touch panel computer.

[0021] The positioning bracket is composed of a supporting main rod 3, a rotating seat 4, a supporting cross bar 5 and a height adjustment rod 6. The top end of the supporting main rod 3 is movably mounted with the rotating seat 4 through a bearing. The supporting cross bar 5 is inserted into the rotating seat 4. The end of the supporting cross bar 5 is inserted with the height adjustment rod 6. A height adjustment screw 7 is threadedly mounted on the end face of the supporting cross bar 5 outside the height adjustment rod 6. The height adjustment screw 7 is connected to the height adjustment rod 6 to lock the height of the height adjustment rod 6; the bottom end of the height adjustment rod 6 is fixedly connected to the micro camera 1. The function of the height adjustment rod 6 is to adjust the vertical distance between the micro camera 1 and the injection needle by adjusting the height of the height adjustment rod 6. The function of the supporting cross bar 5 is to adjust the horizontal position of the height adjustment rod 6 by adjusting the support cross bar 5 to insert into the rotating seat 4, thereby adjusting the horizontal position of the height adjustment rod 6, thereby adjusting the horizontal distance between the micro camera 1 and the end of the injection needle. The function of the rotating base 4 is to drive the support cross bar 5 to rotate during the rotation of the rotating base 4 relative to the supporting main rod 3, thereby driving the rotation of the height adjustment rod 6, thereby driving the microscope camera 1 to rotate, and in conjunction with the adjustment of the support cross bar 5, further adjust the distance between the microscope camera 1 and the injection needle in the horizontal direction, and then in conjunction with the height adjustment rod 6 to adjust the height of the microscope camera 1, and adjust the position of the microscope camera 1 so that the microscope camera 1 can clearly capture the tip of the injection needle.

[0022] A set screw 8 is threadedly installed on the top end surface of the rotating seat 4, and the set screw 8 is connected to the supporting cross bar 5 to lock the angle of the supporting cross bar 5, thereby locking the angle between the height adjustment rod 6 and the horizontal direction, and locking the horizontal position of the supporting cross bar 5.

[0023] When adjusting the display mechanism for convenient observation of needle grinding, in order to avoid the water used for lubrication splashing onto the microscope camera 1 and affecting the shooting, fix the microscope camera 1 3-5 cm above the needle tip during grinding (see the attached manual). Figure 4 ). The specific adjustment process is as follows: rotate the rotating seat 4 to align the end of the supporting crossbar 5 with the top of the injection needle end. After the supporting crossbar 5 is rotated into place, loosen the set screw 8 and adjust the horizontal position and angle of the height adjustment rod 6 so that the height adjustment rod 6 is vertically aligned downward with the injection needle end. After the adjustment is completed, tighten the set screw 8 to lock the horizontal position and angle of the height adjustment rod 6. After tightening the set screw 8, loosen the height adjustment screw 7 and adjust the height of the height adjustment rod 6, thereby adjusting the height of the microscope camera 1 so that the microscope camera 1 can clearly capture the injection needle end while ensuring that water is not easily splashed on the microscope camera 1.

[0024] As an improvement, the microscope camera 1 is provided with a wind hood 9, which is connected to the air source through the air duct 10, so that the air source can sequentially convey dry and clean protective gas to the bottom of the microscope camera 1 through the air duct 10 and the wind hood 9, thereby forming a wind curtain to prevent splashing water and water vapor from entering the microscope camera 1, thereby enabling the microscope camera 1 to shoot the injection needle tip at a closer distance and a more appropriate angle.

[0025] When adjusting the display mechanism for convenient observation of needle grinding, fix the micro camera 1 at a position 0.5-1.5 cm above the needle tip and shoot at an angle of 0-60 degrees to the horizontal direction, so that the shooting is clearer and the distance between the needle tip and the grinding wheel can be observed more conveniently (see the attached manual). Figure 5 ).

[0026] This display mechanism facilitates observation of needle grinding. Microscopic camera 1 captures the needle tip and displays it magnified on display 2, allowing for easy and clear observation of the needle's downward movement. This effectively controls the distance between the needle and the grinding wheel, ensuring that the needle and grinding wheel are in perfect contact during grinding without excessive contact stress, ensuring that the needle can be ground without damage. This magnified observation effectively reduces visual fatigue and, in turn, reduces workload. This solves the problem of existing drip systems that only provide lubrication but fail to control the distance between the needle and the grinding wheel, leading to needle damage.

Claims

1. A display mechanism for conveniently observing injection needle grinding, which consists of a positioning bracket, a microscopic camera (1) and a display (2), and is characterized in that: A microscopic camera (1) is provided on the positioning bracket, and the microscopic camera (1) is connected to a display (2) via a universal serial bus; The positioning bracket is composed of a supporting main rod (3), a rotating seat (4), a supporting cross bar (5) and a height adjustment rod (6). The top end of the supporting main rod (3) is movably mounted with a rotating seat (4) through a bearing, the rotating seat (4) is plugged with a supporting cross bar (5), the end of the supporting cross bar (5) is plugged with a height adjustment rod (6), and a height adjustment screw (7) is threadedly mounted on the end surface of the supporting cross bar (5) outside the height adjustment rod (6). The height adjustment screw (7) is abutted against the height adjustment rod (6) to lock the height of the height adjustment rod (6); the bottom end of the height adjustment rod (6) is fixedly connected to the microscope camera (1).

2. A display mechanism for conveniently observing injection needle grinding according to claim 1, characterized in that: A set screw (8) is threadedly mounted on the top end surface of the rotating seat (4), and the set screw (8) is abutted against the supporting cross bar (5) to lock the angle and horizontal position of the supporting cross bar (5).

3. The display mechanism for conveniently observing injection needle grinding according to claim 1, characterized in that: The model of the microscope camera (1) is a Leica IC90 E stereo microscope camera.

4. The display mechanism for conveniently observing injection needle grinding according to claim 1, characterized in that: The model of the display (2) is Advantech PPC-3120 industrial touch panel computer.

5. The display mechanism for conveniently observing injection needle grinding according to claim 1, characterized in that: The microscope camera (1) is provided with a wind hood (9), which is connected to an air source via an air duct (10).

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