Surgical magnifier with multi-angle adjusting function

Abstract

The utility model discloses a surgical magnifier with a multi-angle adjusting function, which is characterized in that the angle change of an objective lens shell is driven by the rotation of an outer gear ring of the objective lens shell, and images of different areas can still be observed under the action of refraction under the condition that the neck and the head are not rotated. The objective lens can only rotate on the plane of the mounting shell during rotation, so that the angle adjusting range is still limited, the azimuth angle adjusting structure is arranged, and the eyepiece, the eyepiece shell, the mounting shell, the objective lens shell and the objective lens can be integrally rotated in the sleeve through the azimuth angle adjusting structure, so that the objective lens can be conveniently adjusted. The angle adjustment range of the objective lens is wider, and the use is more comprehensive.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a surgical magnifying glass with a multi-angle adjustment function. Background Art

[0002] The surgical magnifier uses convergent observation technology to converge the observer's binocular vision in a narrow cavity, producing a bright and magnified three-dimensional field of view, providing a unique three-dimensional deep view for examination and treatment. It is a commonly used medical device in medical work.

[0003] Current surgical magnifying glasses do not have the function of angle adjustment. When surgeons use them, the operating area is constantly changing during the operation, so they need to constantly turn their heads to adjust the field of view. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model discloses a surgical magnifying glass with a multi-angle adjustment function. The technical scheme adopted is that it includes an eyepiece, a lens 1, an eyepiece shell, a right-angle prism 1, a mounting shell, an isosceles prism, an objective lens shell, a right-angle prism 2, an objective lens and a lens 2. The remaining parts also include a headband frame, a fastening structure, a mounting frame, an upper rotating shaft, an upper grooved knob, an upper latch, a connecting frame, a lower rotating shaft with a groove, a lower latch, a telescopic connecting shaft, a mounting plate, a sleeve, an azimuth angle adjustment structure, an outer gear ring of the objective lens shell and a limiting rod. The headband frame is provided with a fastening structure, which is used to help doctors wear it stably on their heads. Two mounting frames are fixed in the middle of the left side of the headband frame, and the mounting frame is rotatably installed in the bracket by the upper grooved knob. The driven upper rotating shaft, the mounting frame is provided with a through hole in the front and rear directions, the position of the through hole corresponds to the outer edge groove of the upper slotted knob, the upper latch passes through the through hole and passes through the outer edge groove of the upper slotted knob to limit it, when the upper rotating shaft needs to be rotated, the upper latch can be pulled out to rotate it, after rotating to the use angle, the upper latch is reinserted and passed through the outer edge groove of the upper slotted knob to limit it, one end of the connecting frame is fixed on the upper rotating shaft, and the other end has a groove, the lower slotted rotating shaft is rotatably installed in the groove, the lower end of the connecting frame is also provided with a through hole in the front and rear directions, the lower latch passes through and passes through the outer edge groove of the lower slotted rotating shaft to limit it, the rotation and limiting method of the lower slotted rotating shaft are consistent with the rotation and limiting method of the upper rotating shaft, the lower slotted The front and rear end extensions of the rotating shaft are connected with a telescopic connecting shaft, and the end of the extension of the telescopic connecting shaft is fixed to the sleeve through an integrally formed mounting plate. The distance between the left and right sleeves is adjusted by adjusting the extension length of the telescopic connecting shaft to meet the observation needs of the human eye. The eyepiece is rotatably installed in the sleeve, and a lens 1 is provided inside it. The extension of the left end of the eyepiece is fixed to the eyepiece shell, and a right-angle prism 1 is provided inside it. The eyepiece shell is also fixed to the mounting shell, and an isosceles prism is provided inside the mounting shell. The objective lens shell is fixed to the mounting shell, and a right-angle prism 2 is provided inside it. The left end of the objective lens shell is fixedly connected to the objective lens, and the objective lens has a lens 2. When the image light source passes through the lens 2 and reaches the right-angle prism 2, it is refracted to the isosceles prism, and finally radiates to the straight The right-angle prism 1 finally enters the human eye from the lens 1 after being refracted by the right-angle prism 1. The outer edge of the lower bottom of the objective lens housing is provided with a circle of outer toothed ring of the objective lens housing. A limit rod is fixed on the left end side of the mounting housing. The limit rod is located at the tooth groove of the outer toothed ring of the objective lens housing. The outer toothed ring of the objective lens housing can be rotated manually to change the angle of the objective lens housing. Under the effect of refraction, images of different areas can still be observed without turning the neck and head. Since the objective lens can only be rotated on the plane of the mounting housing when rotating, the adjustment range of the angle is still limited. Therefore, an azimuth angle adjustment structure is provided. The eyepiece, eyepiece housing, mounting housing, objective lens housing and objective lens can be rotated as a whole in the sleeve through the provided azimuth angle adjustment structure.This makes the angle adjustment range of the objective lens wider and more comprehensive.

[0005] As a preferred technical solution of the utility model, the fastening structure includes a clamping arc, an axis, a connecting spring and a limit plate. The connecting spring is fixed to the inner side wall of the headband frame, and the other end of the connecting spring is fixedly connected to the clamping arc. A through hole is opened on the rear side wall of the headband frame at the center of the connecting spring. The axis passes through the through hole, one end is fixedly connected to the side wall of the clamping arc, and the other end is fixed to the limit plate.

[0006] As a preferred technical solution of the utility model, scale grooves are evenly distributed on the outer side wall of the extended portion of the telescopic connecting shaft.

[0007] As a preferred technical solution of the utility model, the limiting rod is a plastic rubber rod.

[0008] As a preferred technical solution of the utility model, the azimuth angle adjustment structure includes a sprocket ring, a chain and a grooved drive ring. A sprocket ring is fixed to the outside of the protruding part of the left end of the sleeve where the eyepiece is located. The two sprocket rings are driven by a chain. A grooved drive ring is fixed to the outer side wall of the end of the right protruding part of the front eyepiece.

[0009] The beneficial effects of the utility model are as follows: the angle of the objective lens housing is changed by the rotation of the outer gear ring of the objective lens housing, and under the effect of refraction, images of different areas can still be observed without rotating the neck and the head. Since the objective lens can only rotate on the plane of the mounting housing when rotating, the adjustment range of the angle is still limited. Therefore, an azimuth angle adjustment structure is provided. Through the provided azimuth angle adjustment structure, the eyepiece, the eyepiece housing, the mounting housing, the objective lens housing and the objective lens can be rotated as a whole in the sleeve, so that the angle adjustment range of the objective lens is wider and the use is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the right side structure of the utility model;

[0012] Figure 3 It is a schematic diagram of the structure of some components of the utility model.

[0013] In the figure: headband frame 1, clamping arc 101, shaft body 102, connecting spring 103, limit plate 104, mounting frame 5, upper rotating shaft 6, upper grooved knob 7, upper latch 8, connecting frame 9, lower grooved rotating shaft 10, lower latch 11, telescopic connecting shaft 12, scale groove 13, mounting plate 14, sleeve 15, eyepiece 16, lens 1 161, sprocket ring 17, chain 18, grooved driving ring 19, eyepiece housing 20, right angle prism 1 201, mounting housing 21, isosceles prism 211, objective lens housing 22, right angle prism 2 221, objective lens 23, lens 2 231, objective lens housing outer gear ring 222, limit rod 223. DETAILED DESCRIPTION

[0014] Example 1

[0015] like Figures 1 to 3As shown, the utility model discloses a surgical magnifying glass with a multi-angle adjustment function, and the technical scheme adopted is that it includes an eyepiece 16, a lens 161, an eyepiece housing 20, a right angle prism 1 201, a mounting housing 21, an isosceles prism 211, an objective lens housing 22, a right angle prism 221, an objective lens 23 and a lens 231, and is characterized in that it includes a headband frame 1, a fastening structure, a mounting frame 5, an upper shaft 6, an upper grooved knob 7, an upper latch 8, a connecting frame 9, a lower grooved shaft 10, a lower latch 11, and a retractable connecting shaft 12, mounting plate 14, sleeve 15, azimuth angle adjustment structure, objective lens housing outer gear ring 222 and limit rod 223, a fastening structure is arranged on the headband frame 1, two mounting frames 5 are fixed on the middle part of the left side of the headband frame 1, the mounting frame 5 is rotatably installed in the bracket of the upper rotating shaft 6 driven by the upper grooved knob 7, the mounting frame 5 is provided with a through hole in the front and rear directions, the position of the through hole corresponds to the outer edge groove of the upper grooved knob 7, the upper latch 8 passes through the through hole from the outer edge groove of the upper grooved knob 7 to limit it, one end of the connecting frame 9 is fixed on the upper rotating shaft 6, and the other end of the connecting frame 9 is fixed on the upper rotating shaft 6. One end has a groove, in which the lower grooved shaft 10 is rotatably installed. The lower end of the connecting frame 9 also has a through hole in the front-to-back direction. The lower latch 11 passes through and passes through the outer edge groove of the lower grooved shaft 10 to limit it. The front and rear end protruding parts of the lower grooved shaft 10 are connected with a telescopic connecting shaft 12. The end of the protruding end of the telescopic connecting shaft 12 is fixed to the sleeve 15 through an integrally formed mounting plate 14. The eyepiece 16 is rotatably installed in the sleeve 15, which has a lens 161 inside. The left end protruding part of the eyepiece 16 is fixed to the eyepiece housing 20. A right-angle prism 201 is provided inside the housing. The eyepiece housing 20 is also fixed on the mounting housing 21. An isosceles prism 211 is provided inside the mounting housing 21. An objective lens housing 22 is fixed on the mounting housing 21. A right-angle prism 221 is provided inside the housing. The left end of the objective lens housing 22 is fixedly connected to the objective lens 23. The objective lens 23 has a lens 2 231 inside. The outer edge of the lower bottom of the objective lens housing 22 has a circle of objective lens housing outer toothed ring 222. A limiting rod 223 is fixed on the side of the left end of the mounting housing 21. The limiting rod 223 passes through the tooth groove of the objective lens housing outer toothed ring 222.

[0016] As a preferred technical solution of the utility model, the fastening structure includes a clamping arc 101, an axle body 102, a connecting spring 103 and a limiting plate 104. The connecting spring 103 is fixed to the inner side wall of the headband frame 1, and the other end of the connecting spring 103 is fixedly connected to the clamping arc 101. A through hole is opened on the rear side wall of the headband frame 1 at the center of the connecting spring 103. The axle body 102 passes through the through hole, with one end fixedly connected to the side wall of the clamping arc 101 and the other end fixed to the limiting plate 104.

[0017] As a preferred technical solution of the present utility model, scale grooves 13 are evenly distributed on the outer side wall of the extended portion of the telescopic connecting shaft 12 .

[0018] As a preferred technical solution of the present utility model, the limiting rod 223 is a plastic rubber rod.

[0019] As a preferred technical solution of the utility model, the azimuth angle adjustment structure includes a sprocket ring 17, a chain 18 and a grooved drive ring 19. The eyepiece 16 is located on the outer side of the left end protruding part of the sleeve 15, and a sprocket ring 17 is fixed thereto. The two sprocket rings 17 are driven by the chain 18. A circle of grooved drive ring 19 is fixed to the outer side wall of the end of the right end protruding part of the front eyepiece 16.

[0020] The working principle of the utility model is as follows: when in use, the image light source passes through the lens 2 231 and reaches the right-angle prism 221, where it is refracted to the isosceles prism 211, and finally projects to the right-angle prism 1 201 after being refracted by the isosceles prism 211, and finally enters the human eye from the lens 1 161 after being refracted by the right-angle prism 1 201. The outer edge of the lower bottom of the objective lens housing 22 has a circle of objective lens housing outer toothed ring 222, and a limiting rod 223 is fixed to the left end side of the housing 21. The limiting rod 223 is at the tooth groove of the objective lens housing outer toothed ring 222, and the objective lens housing outer toothed ring 222 can be rotated manually. Under the obstruction of the limiting rod 223 made of plastic rubber, when it is rotated to the use angle, it can be stably at the current angle, and the rotation of the objective lens housing outer toothed ring 222 drives the angle of the objective lens housing 22 to be adjusted. The eyepiece 23 is changed by the azimuth angle adjustment structure, and the images of different areas can still be observed without rotating the neck and the head under the effect of refraction. Since the objective lens 23 can only rotate on the plane of the mounting shell 21 when rotating, the adjustment range of the angle is still limited. Therefore, an azimuth angle adjustment structure is provided. The eyepiece 16, the eyepiece shell 20, the mounting shell 21, the objective lens shell 22 and the objective lens 23 can be rotated as a whole in the sleeve 15 through the provided azimuth angle adjustment structure, so that the angle adjustment range of the objective lens 23 is wider and the use is more comprehensive. The specific adjustment method is to manually rotate the grooved driving ring 19. Under the action of the chain 18, the two sprocket rings 17 rotate simultaneously to rotate the eyepiece. A damping structure is provided at the rotation connection between the eyepiece and the sleeve so that the eyepiece can be rotated only under manual drive.

[0021] Components not described in detail herein are prior art.

[0022] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the scope of protection of the present invention.

Claims

1. A surgical magnifying glass with a multi-angle adjustment function, comprising an eyepiece (16), a lens 1 (161), an eyepiece housing (20), a right-angle prism 1 (201), a mounting housing (21), an isosceles prism (211), an objective lens housing (22), a right-angle prism 2 (221), an objective lens (23) and a lens 2 (231), characterized in that: The headband frame (1) comprises a fastening structure, a mounting frame (5), an upper rotating shaft (6), an upper grooved knob (7), an upper latch (8), a connecting frame (9), a lower grooved rotating shaft (10), a lower latch (11), a telescopic connecting shaft (12), a mounting plate (14), a sleeve (15), an azimuth angle adjustment structure, an outer toothed ring (222) of an objective lens housing and a limiting rod (223); the headband frame (1) is provided with a fastening structure; the Two mounting frames (5) are fixed at the middle of the left side of the headband frame (1), and an upper rotating shaft (6) driven by an upper grooved knob (7) is rotatably mounted in the mounting frame (5); a through hole is opened in the front-to-back direction of the mounting frame (5), and the position of the through hole corresponds to the outer edge groove of the upper grooved knob (7); an upper latch (8) passes through the through hole and passes through the outer edge groove of the upper grooved knob (7) to limit its position; one end of the connecting frame (9) is fixed to the upper rotating shaft (6) The connecting frame (9) is provided with a groove at the other end, in which the lower grooved rotating shaft (10) is rotatably mounted; the lower end of the connecting frame (9) is also provided with a through hole in the front-to-back direction, through which the lower latch (11) passes and passes through the outer edge groove of the lower grooved rotating shaft (10) to limit its position; the front and rear end protruding parts of the lower grooved rotating shaft (10) are connected with a telescopic connecting shaft (12); the end of the protruding end of the telescopic connecting shaft (12) is fixed to the sleeve (15) through an integrally formed mounting plate (14); the eyepiece (16) is rotatably mounted in the sleeve (15), and a lens 1 (161) is provided inside the sleeve; the left end protruding part of the eyepiece (16) is fixed to the eyepiece housing (20), and the inner The eyepiece housing (20) is fixed on the mounting housing (21) at the same time, and the mounting housing (21) has an isosceles prism (211) inside; the objective lens housing (22) is fixed on the mounting housing (21), and has a right-angle prism (221) inside; the left end of the objective lens housing (22) is fixedly connected to the objective lens (23), and the objective lens (23) has a lens (231) inside; the outer edge of the bottom of the objective lens housing (22) has a circle of objective lens housing outer toothed ring (222); a limit rod (223) is fixed on the side surface of the left end of the mounting housing (21), and the limit rod (223) passes through the tooth groove of the objective lens housing outer toothed ring (222).

2. The surgical magnifying glass with multi-angle adjustment function according to claim 1, characterized in that: The fastening structure comprises a clamping arc (101), an axle (102), a connecting spring (103) and a limiting plate (104); the connecting spring (103) is fixed to the inner wall of the headband frame (1), and the other end of the connecting spring (103) is fixedly connected to the clamping arc (101); a through hole is opened on the rear side wall of the headband frame (1) at the center of the connecting spring (103), and the axle (102) passes through the through hole, with one end fixedly connected to the side wall of the clamping arc (101) and the other end fixed to the limiting plate (104).

3. The surgical magnifying glass with multi-angle adjustment function according to claim 1, characterized in that: Graduation grooves (13) are evenly distributed on the outer side wall of the extended portion of the telescopic connecting shaft (12).

4. The surgical magnifying glass with multi-angle adjustment function according to claim 1, characterized in that: The limiting rod (223) is a plastic rubber rod.

5. The surgical magnifying glass with multi-angle adjustment function according to claim 1, characterized in that: The azimuth angle adjustment structure comprises a sprocket ring (17), a chain (18) and a grooved driving ring (19); a sprocket ring (17) is fixed on the outer side of the left end protruding portion of the eyepiece (16) located on the sleeve (15), and the two sprocket rings (17) are driven by the chain (18); a grooved driving ring (19) is fixed on the outer side wall of the end of the right end protruding portion of the front eyepiece (16).

Images