Femtosecond laser eye position automatic tracking device

Abstract

The utility model discloses a femtosecond laser eye position automatic tracking device, which belongs to the field of medical equipment, comprises a tracking structure, and a damping spring is arranged between a limiting ring and a fixed tube, and solves the problems that the camera shooting position of an iris recognition instrument is deviated and the imaging quality is influenced because the hand of an operator is easy to touch a planishing cone mirror. In order to solve the problem that the eye position tracking capability of the iris recognition instrument is reduced, a camera is inserted into a mounting ring, a threaded groove is rotated reversely, the threaded groove is rotated out of a threaded groove and a threaded hole, a mounting pipe can be dragged to move along the outer surface of a cross-shaped rod, a clamping plate clamps the camera, the camera is fixed, and the mounting pipe is held by hand and rotated. And when the femtosecond device is impacted, the mounting ring pushes the movable rod to move in the limiting ring and the fixed pipe, and the arranged damping spring performs damping on the movement of the movable rod, so that the camera is prevented from shaking to influence the tracking of the eyeball by the camera.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, and more specifically, to an automatic eye position tracking device of a femtosecond laser. Background Art

[0002] The eyeball is tracked by the iris positioning system in the femtosecond device. Once the cornea deviates from the laser, the laser device will start the positioning system for tracking. If the rotation amplitude is large, the laser will stop automatically. The image acquisition device of the iris recognition device is mainly composed of an iris recognition camera and an iris recognition device controller. The image acquisition device in the iris recognition device controller usually uses a camera to shoot or scan the iris in the eye. In order to facilitate the operator's use, the iris recognition device is usually equipped with auxiliary equipment such as a control panel and a display screen to display information such as operation prompts and comparison results. During the use of the existing second laser device, the laser blade is controlled by the joystick to cut the eyeball. However, in actual operation, the operator's hand is easy to touch the instrument, causing the camera position of the iris recognition device to shift, and the iris recognition device's ability to track the eye position is reduced. Utility Model Content

[0003] The purpose of the utility model is to overcome the problem in the prior art that the operator's hand is easy to touch the flattening cone, causing the camera position of the iris recognition device to shift and the iris recognition device's ability to track the eye position to decrease. A femtosecond laser automatic eye position tracking device is provided to solve the above shortcomings and facilitate use.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0005] The utility model discloses an automatic eye position tracking device for femtosecond laser, comprising a tracking structure, wherein the tracking structure comprises a mounting frame and a shooting hole provided on the front end surface of the mounting frame, a mounting mechanism is provided inside the mounting frame and at the rear end of the shooting hole, a camera is installed inside the mounting frame, and an anti-shake mechanism is installed on the outer surface of the mounting mechanism;

[0006] The anti-shake mechanism includes a fixed tube fixedly installed on the inner wall of the installation frame and a movable rod movably installed inside the movable rod. A limiting ring for limiting the movable rod is installed at one end of the inner part of the fixed tube, and a shock-absorbing spring is installed between the limiting ring and the fixed tube.

[0007] Preferably, the mounting mechanism includes a mounting ring and a rotating groove provided at the upper end of the mounting ring body, a cross-hole rod is movably installed at the upper end of the mounting ring and inside the rotating groove, a driving gear is installed on the outer surface of the cross-hole rod, a threaded hole is provided on the front end surface of the mounting ring at the same height as the cross-hole rod, and a fixing mechanism is installed inside the threaded hole.

[0008] Preferably, movable grooves are provided on both sides of the inner wall of the mounting ring, the movable grooves are communicated with the interior of the rotating groove, mounting columns are movably installed inside the rotating groove, and a clamping area is installed inside the movable groove.

[0009] Preferably, the outer surface of the mounting column has a driven gear and a driving gear, and there are two groups of driving gears, the two groups of driving gears are arranged at the upper end of the movable groove, and the driving gear, the driving gear and the driven gear are meshed and connected.

[0010] Preferably, the clamping area includes a hollow side frame installed on the outer surface of the mounting ring and a T-shaped movable plate slidably installed, triangular teeth are installed on the outer surface of the T-shaped movable plate and on one side close to the driving gear, and a clamping plate is installed at one end of the T-shaped movable plate.

[0011] Preferably, the fixing mechanism comprises a mounting tube and a cross rod which is mounted inside the mounting tube in a limited sliding manner, a thread groove is formed on the outer surface of the mounting tube, and an inner thread ring is threadedly connected to the outer surface of the thread groove.

[0012] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] (1) The utility model is a femtosecond laser eye position automatic tracking device. Through the installation mechanism and the camera, the camera is inserted into the interior of the installation ring. The installation tube is held and rotated, and the driving gear pushes the T-shaped moving plate to move toward the interior of the installation ring. The clamping plate clamps the camera to fix the camera.

[0015] (2) The utility model provides a femtosecond laser automatic eye tracking device. By setting up an anti-shake mechanism, when the femtosecond device is hit, the shock-absorbing spring between the mounting ring and the movable rod will absorb the vibration, thereby preventing the camera from shaking and affecting the camera's tracking of the eyeball. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structure diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the installation mechanism of the utility model;

[0018] Figure 3 This is the internal structure diagram of the installation mechanism of the utility model;

[0019] Figure 4 For the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5This is a structural diagram of the fixing mechanism of the utility model.

[0021] In the figure: 1. tracking structure; 11. mounting frame; 12. shooting hole; 13. camera; 14. mounting mechanism; 141. mounting ring; 142. rotating groove; 143. cross hole rod; 144. driving gear; 145. driven gear; 146. mounting column; 147. clamping area; 1471. hollow side frame; 1472. T-shaped moving plate; 1473. triangular gear; 1474. clamping plate; 148. moving groove; 149. driving gear; 15. anti-shake mechanism; 151. fixing tube; 152. movable rod; 153. limiting ring; 154. shock-absorbing spring; 16. fixing mechanism; 161. cross rod; 162. mounting tube; 163. threaded groove; 164. internal thread ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0024] Combination Figure 1 A femtosecond laser automatic eye position tracking device includes a tracking structure 1, the tracking structure 1 includes a mounting frame 11 and a shooting hole 12 opened on the front end surface of the mounting frame 11, a mounting mechanism 14 is provided inside the mounting frame 11 and at the rear end of the shooting hole 12, a camera 13 is installed inside the mounting frame 11, and an anti-shake mechanism 15 is installed on the outer surface of the mounting mechanism 14.

[0025] The utility model is further described below in conjunction with embodiments.

[0026] Combination Figure 1-5The anti-shake mechanism 15 includes a fixed tube 151 fixedly mounted on the inner wall of the mounting frame 11 and a movable rod 152 movably mounted inside the movable rod 152, a limiting ring 153 for limiting the movable rod 152 is installed at one end of the fixed tube 151, and a shock-absorbing spring 154 is installed between the limiting ring 153 and the fixed tube 151. The mounting mechanism 14 includes a mounting ring 141 and a rotation groove 142 opened at the upper end of the mounting ring 141 body, a cross hole rod 143 is movably installed at the upper end of the mounting ring 141 and inside the rotation groove 142, a driving gear 144 is installed on the outer surface of the cross hole rod 143, a threaded hole is opened on the front end surface of the mounting ring 141 and at a position at the same height as the cross hole rod 143, a fixing mechanism 16 is installed inside the threaded hole, moving grooves 148 are opened on both sides of the inner wall of the mounting ring 141, the moving groove 148 is communicated with the inside of the rotation groove 142, a mounting column 146 is movably installed inside the rotation groove 142, and the inside of the moving groove 148 is installed A clamping area 147 is provided, and a driven gear 145 and a driving gear 149 are provided on the outer surface of the mounting column 146, and the driving gear 149 is provided with two groups. The positions of the two groups of driving gears 149 are arranged at the upper end of the movable groove 148. The active gear 144 and the driving gear 149 are meshed and connected with the driven gear 145. The clamping area 147 includes a hollow side frame 1471 installed on the outer surface of the mounting ring 141 and a T-shaped movable plate 1472 slidably installed. A triangular tooth 1473 is installed on the outer surface of the T-shaped movable plate 1472 and on the side close to the driving gear 149. A clamping plate 1474 is installed at one end of the T-shaped movable plate 1472. The fixing mechanism 16 includes a mounting tube 162 and a cross rod 161 limitedly slidably installed inside the mounting tube 162. A threaded groove 163 is provided on the outer surface of the mounting tube 162. The outer surface of the threaded groove 163 is threadedly connected with an internal threaded ring 164. The inner wall and outer surface of the threaded ring 164 are both threaded.

[0027] In this embodiment: the camera 13 is inserted into the interior of the mounting ring 141, and the thread groove 163 is rotated in the opposite direction. The thread groove 163 is rotated out from the thread groove 163 and the threaded hole, and the mounting tube 162 can be dragged to move along the outer surface of the cross rod 161. The mounting tube 162 is held and rotated, and one end of the cross rod 161 is located inside the cross hole rod 143, so that the cross hole rod 143 drives the driving gear 144 to rotate, and the driving gear 144 is meshed with the driven gear 145 and the driven gear 145 is meshed with the driving gear 149, so that when the driving gear 144 rotates, the driving gear 149 can be driven to rotate, and the triangular teeth 1473 meshed with the driving gear 149 will push the T-shaped moving plate 1472 to the inside of the mounting ring 141 Move, the clamping plate 1474 clamps the camera 13 to fix the camera 13, and presses the mounting tube 162 toward one side of the cross rod 161, so that the inner wall of the mounting tube 162 contacts one end of the cross rod 161, and then rotate the internal thread ring 164, the outer surface of the internal thread ring 164 is threaded in the thread, and the inner side of the internal thread ring 164 is threaded on the outer surface of the thread groove 163 to fix the position of the camera 13. When the femtosecond device is hit, the mounting ring 141 will push the movable rod 152 to move inside the limit ring 153 and the fixed tube 151, and the shock-absorbing spring 154 will dampen the movement of the movable rod 152 to prevent the camera 13 from shaking and affecting the camera 13's tracking of the eyeball.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A femtosecond laser eye position automatic tracking device, comprising a tracking structure (1), characterized in that: The tracking structure (1) comprises a mounting frame (11) and a shooting hole (12) provided on the front end surface of the mounting frame (11); a mounting mechanism (14) is provided inside the mounting frame (11) and at the rear end of the shooting hole (12); a camera (13) is installed inside the mounting frame (11); and an anti-shake mechanism (15) is installed on the outer surface of the mounting mechanism (14); The anti-shake mechanism (15) comprises a fixed tube (151) fixedly mounted on the inner wall of the mounting frame (11) and a movable rod (152) movably mounted inside the movable rod (152); a limiting ring (153) for limiting the movable rod (152) is mounted on one end of the interior of the fixed tube (151); and a shock absorbing spring (154) is mounted between the limiting ring (153) and the fixed tube (151).

2. The femtosecond laser eye position automatic tracking device according to claim 1, characterized in that: The mounting mechanism (14) comprises a mounting ring (141) and a rotation groove (142) provided at the upper end of the mounting ring (141) body; a cross hole rod (143) is movably installed at the upper end of the mounting ring (141) and inside the rotation groove (142); a driving gear (144) is installed on the outer surface of the cross hole rod (143); a threaded hole is provided at the front end surface of the mounting ring (141) and at a position equal to the height of the cross hole rod (143); a fixing mechanism (16) is installed inside the threaded hole.

3. The femtosecond laser eye position automatic tracking device according to claim 2, characterized in that: The inner wall of the mounting ring (141) is provided with movable grooves (148) on both sides. The movable groove (148) is communicated with the interior of the rotating groove (142). The interior of the rotating groove (142) is movably provided with mounting columns (146). The interior of the movable groove (148) is provided with a clamping area (147).

4. The femtosecond laser eye position automatic tracking device according to claim 3, characterized in that: The outer surface of the mounting column (146) is provided with a driven gear (145) and a driving gear (149), and the driving gear (149) is provided with two groups. The two groups of driving gears (149) are arranged at the upper end of the movable groove (148), and the driving gear (144), the driving gear (149) and the driven gear (145) are meshed and connected.

5. The femtosecond laser eye position automatic tracking device according to claim 4, characterized in that: The clamping area (147) includes a hollow side frame (1471) mounted on the outer surface of the mounting ring (141) and a T-shaped movable plate (1472) slidably mounted thereon, triangular teeth (1473) being mounted on the outer surface of the T-shaped movable plate (1472) and on one side close to the driving gear (149), and a clamping plate (1474) being mounted on one end of the T-shaped movable plate (1472).

6. The femtosecond laser eye position automatic tracking device according to claim 2, characterized in that: The fixing mechanism (16) comprises a mounting tube (162) and a cross rod (161) which is mounted inside the mounting tube (162) in a limited sliding manner. A thread groove (163) is provided on the outer surface of the mounting tube (162), and an inner thread ring (164) is threadedly connected to the outer surface of the thread groove (163).

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