Automatic paper changing structure of slit lamp microscope for ophthalmology

Abstract

This utility model discloses an automatic paper-changing structure for an ophthalmic slit-lamp microscope, mounted on a support. The automatic paper-changing structure includes a paper strip, an unwinding roller, a winding roller, and a paper-changing drive mechanism. Both the winding roller and the unwinding roller are located within the inner cavity of the support. The paper-changing drive mechanism is poweredly connected to the winding roller. The support surface of the support has a paper outlet hole and a paper return hole. The paper outlet hole is near the unwinding roller, and the paper return hole is near the winding roller. The two ends of the paper strip are connected to the unwinding roller and the winding roller, respectively. The paper strip extends through the paper outlet hole to the outside of the support surface of the support and then passes through the paper return hole back into the inner cavity of the support. This automatic paper-changing structure allows for automatic paper changing without the need for manual sterilization, saving manpower and ensuring one-time paper changing per person, maintaining cleanliness and hygiene.

Description

Technical Field

[0001] This utility model relates to an ophthalmic slit-lamp microscope examination instrument, specifically to an automatic paper changing structure for an ophthalmic slit-lamp microscope examination instrument. Background Technology

[0002] Slit-lamp microscopes are widely used in ophthalmology to observe the structure and condition of the eye. In routine examinations, patients often place their chin directly on a chin rest, with their forehead touching the rest. Currently available equipment lacks automatic sterilization mechanisms. If a patient is not sterilized after contact and another patient is treated, this violates medical industry sterilization standards and poses a risk of cross-infection. Some medical institutions use chin pads, changing them after each patient. However, this requires manual replacement, and the pads are difficult to separate, often remaining in place, or many are torn off, resulting in waste. Other departments use disinfectant wipes to manually clean the contact area, but this undoubtedly increases the workload for doctors and the cost of medical supplies.

[0003] In an era of rapid development of artificial intelligence, ophthalmologists hope that slit-lamp microscopes can have a built-in automatic sensing, convenient, safe and hygienic paper-changing function for each patient.

[0004] Current improvements to chin rest pads and forehead pads are not ideal. For example, patent CN202120284901.3 discloses an improved slit lamp chin rest pad. This patent designs a pad box and compression spring to place the pad inside and folds the paper into a tissue-pulling shape, thus removing only one sheet each time, preventing waste. However, this solution still requires medical staff to manually remove the paper, failing to achieve automated removal. Patent CN201520221602.X discloses a slit lamp forehead pad. This design features a hollow box-shaped body with an openable top cover. The tissue roll is placed inside the body, allowing paper to exit from one side and enter from the other. While this design achieves automated tissue removal, the limited volume of the forehead pad means that both new and used tissues can only be placed inside, necessitating frequent tissue changes by medical staff. On the other hand, cross-contamination can occur when new and old tissues are placed together. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned problems and provide an automatic paper changing structure for an ophthalmic slit-lamp microscope. This automatic paper changing structure can change the paper automatically without the need for manual disinfection, saving manpower and ensuring that the paper is changed only once per person, which is clean and hygienic.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] An automatic paper-changing structure for an ophthalmic slit-lamp microscope is mounted on a bracket. The automatic paper-changing structure includes a paper tape, an unwinding roller, a winding roller, and a paper-changing drive mechanism.

[0008] Both the take-up and unwind rolls are located in the inner cavity of the bracket, and the paper changing drive mechanism is poweredly connected to the take-up roll. The bracket has a paper outlet hole and a paper take-up hole on its support surface. The paper outlet hole is close to the unwind roll, and the paper take-up hole is close to the take-up roll. The two ends of the paper strip are respectively connected to the unwind roll and the take-up roll. The paper strip passes through the paper outlet hole, extends to the outside of the support surface of the bracket, and passes through the paper take-up hole back into the inner cavity of the bracket.

[0009] The working principle of the automatic paper-changing structure of the above-mentioned ophthalmic slit-lamp microscope is as follows:

[0010] During an eye examination, the examinee places their chin on the paper strip of the chin support and their forehead on the paper strip of the forehead support. After the examination, once the examinee is away from the support, the paper-changing drive mechanism rotates the take-up wheel at a certain angle, pulling the paper strip towards the take-up wheel. This causes the paper strip outside the support surface of the support to move through the take-up hole towards the take-up wheel. The used paper strip gradually winds up onto the take-up wheel, while the unused paper strip is transferred from the paper exit hole to outside the support surface of the support, thus automatically completing the paper-changing operation of the chin and forehead supports.

[0011] In a preferred embodiment of this utility model, the bracket is provided with a detachable structure, which includes a sealing plate and screws. The sealing plate forms one side or surface of the bracket, and the screws detachably fix the sealing plate to the bracket body. Thus, when the paper tape needs to be replaced, the screws can be removed, the sealing plate can be taken off, and the internal structure of the bracket can be exposed to remove the old paper tape roll and load the new paper tape.

[0012] In a preferred embodiment of this utility model, the support surface of the bracket is a concave arc-shaped surface, which can increase the contact area with the chin and forehead, and provide a more stable support function.

[0013] Furthermore, the support surface of the bracket is provided with several shuttle holes, which are located between the paper output hole and the paper receiving hole; the several shuttle holes divide the support surface of the bracket into several independent small support surfaces.

[0014] Furthermore, the interior of the bracket is provided with several guide rods corresponding to the shuttle holes, and the number of guide rods is the same as the number of shuttle holes; along the conveying direction, the paper tape located outside the tray surface of the bracket enters the interior of the bracket through the shuttle hole, passes around the corresponding guide rod, and then comes out through the shuttle hole and extends forward.

[0015] With the above structure, the arc-shaped support surface of the bracket can be divided into multiple small support surfaces. These small support surfaces are close to a flat structure, so the paper tape can be tightly attached to each small support surface. That is, the paper tape can be tightly attached to the arc-shaped support surface of the bracket, preventing the paper tape from separating from the arc-shaped support surface and affecting the normal support function.

[0016] In a preferred embodiment of this utility model, the paper changing drive mechanism includes a paper changing drive motor and a paper changing transmission assembly, wherein the paper changing transmission assembly is connected between the paper changing drive motor and the winding wheel.

[0017] Furthermore, the output shaft of the paper-changing drive motor is perpendicular to the axis of the take-up reel; the paper-changing transmission assembly includes a bevel gear assembly. In this way, arranging the paper-changing drive motor along the length of the bracket, i.e., with the output shaft of the paper-changing drive motor parallel to the length direction of the bracket, allows the paper-changing drive motor and the bracket to be better integrated, making it more practical and aesthetically pleasing.

[0018] Furthermore, the paper-changing drive mechanism also includes a motor cover for enclosing the paper-changing drive motor.

[0019] In a preferred embodiment of this utility model, the bracket includes a chin bracket and a forehead bracket, wherein the axes of the take-up roller and the unwind roller in the chin bracket are both horizontally arranged, and the axes of the take-up roller and the unwind roller in the forehead bracket are both vertically arranged.

[0020] In a preferred embodiment of this utility model, the chin support and the forehead support are respectively connected to the bracket via a vertical adjustment structure.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The automatic paper-changing structure of this invention can automatically complete the paper changing operation of the chin support and forehead support without the need for manual disinfection, saving manpower and ensuring one paper change per person, which is clean and hygienic. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the automatic paper-changing structure of this utility model applied to an ophthalmic slit-lamp microscope.

[0024] Figure 2 This is an exploded three-dimensional structural diagram of the automatic paper changing structure and the bracket of this utility model.

[0025] Figure 3 This is a three-dimensional structural diagram of the bracket of this utility model.

[0026] Figure 4 This is an exploded three-dimensional structural diagram of the paper-changing drive mechanism of this utility model. Detailed Implementation

[0027] To enable those skilled in the art to fully understand the technical solution of this utility model, the present utility model will be further described below in conjunction with the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0028] See Figure 1 The automatic paper-changing structure of the ophthalmic slit-lamp microscope in this embodiment is set on a bracket, which includes a chin bracket 1 and a forehead bracket 2. The chin bracket 1 and the forehead bracket 2 are respectively connected to the support via a vertical adjustment structure.

[0029] See Figure 1-3 The automatic paper changing structure includes a paper belt 3, an unwinding roller 4, a winding roller 5, and a paper changing drive mechanism. The winding roller 5 and the unwinding roller 4 are both located in the inner cavity of the bracket. The paper changing drive mechanism is poweredly connected to the winding roller 5. The bracket has a paper outlet hole 6 and a paper take-up hole 7 on its support surface. The paper outlet hole 6 is close to the unwinding roller 4, and the paper take-up hole 7 is close to the winding roller 5. The two ends of the paper belt 3 are respectively connected to the unwinding roller 4 and the winding roller 5. The paper belt 3 extends through the paper outlet hole 6 to the outside of the support surface of the bracket and returns to the inner cavity of the bracket through the paper take-up hole 7.

[0030] Furthermore, the axes of the take-up roller 5 and the unwind roller 4 in the chin support 1 are both horizontally arranged, while the axes of the take-up roller 5 and the unwind roller 4 in the forehead support 2 are both vertically arranged.

[0031] See Figure 1-3 The bracket is equipped with a detachable structure, which includes a sealing plate 8 and screws 9. The sealing plate 8 forms one side or surface of the bracket, and the screws 9 detachably fix the sealing plate 8 to the bracket body. Thus, when it is necessary to replace the paper tape 3, the screws 9 can be removed, the sealing plate 8 can be removed, the internal structure of the bracket can be exposed, the old paper tape 3 roll can be removed, and the new paper tape 3 can be loaded.

[0032] See Figure 3 The support surface of the bracket is a concave arc surface, which can increase the contact area with the chin and forehead, and provide a more stable support.

[0033] See Figure 3 The support surface of the bracket is also provided with a number of shuttle holes 10, which are located between the paper output hole 6 and the paper receiving hole 7; the number of shuttle holes 10 divides the support surface of the bracket into a number of independent small support surfaces.

[0034] Furthermore, the interior of the bracket is provided with a number of guide rods 11 corresponding to the shuttle holes 10, and the number of guide rods 11 is the same as the number of shuttle holes 10; along the conveying direction, the paper tape 3 located outside the tray surface of the bracket enters the interior of the bracket through the shuttle hole 10, passes around the corresponding guide rod 11, and then comes out of the shuttle hole 10 and extends forward.

[0035] With the above structure, the arc-shaped support surface of the bracket can be divided into multiple small support surfaces. These small support surfaces are close to a flat structure, so that the paper strip 3 can be tightly attached to each small support surface. That is, the paper strip 3 can be tightly attached to the arc-shaped support surface of the bracket, preventing the paper strip 3 from separating from the arc-shaped support surface and affecting the normal support function.

[0036] See Figure 4 The paper changing drive mechanism includes a paper changing drive motor 12 and a paper changing transmission assembly, which is connected between the paper changing drive motor 12 and the winding wheel 5.

[0037] Furthermore, the output shaft of the paper-changing drive motor 12 is perpendicular to the axis of the take-up reel 5; the paper-changing transmission assembly includes a bevel gear assembly. Thus, arranging the paper-changing drive motor 12 along the length of the bracket, i.e., with the output shaft of the paper-changing drive motor 12 parallel to the length direction of the bracket, allows the paper-changing drive motor 12 to be better integrated with the bracket, making it more practical and aesthetically pleasing.

[0038] Furthermore, the paper-changing drive mechanism also includes a motor cover 13 for enclosing the paper-changing drive motor 12.

[0039] See Figure 1-3 The working principle of the automatic paper-changing structure of the above-mentioned ophthalmic slit-lamp microscope is as follows:

[0040] During an eye examination, the examinee places their chin on the paper strip 3 of the chin support 1 and their forehead on the paper strip 3 of the forehead support 2. After the examination, once the examinee is away from the support, the paper-changing drive mechanism drives the take-up wheel 5 to rotate at a certain angle, pulling the paper strip 3 towards the take-up wheel 5. This causes the paper strip 3, which is currently outside the support surface of the support, to move towards the take-up wheel 5 through the take-up hole 7. The used paper strip 3 gradually winds up onto the take-up wheel 5, while the unused paper strip 3 is transferred from the paper outlet hole 6 to outside the support surface of the support, thus automatically completing the paper-changing operation of the chin support 1 and the forehead support 2.

[0041] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. An automatic paper changing structure of an ophthalmic slit lamp microscope, characterized by, Mounted on a tray, the automatic paper changing structure includes a paper belt, an unwinding reel, a rewinding reel, and a paper changing drive mechanism; Both the take-up and unwind rolls are located in the inner cavity of the bracket, and the paper changing drive mechanism is poweredly connected to the take-up roll. The bracket has a paper outlet hole and a paper take-up hole on its support surface. The paper outlet hole is close to the unwind roll, and the paper take-up hole is close to the take-up roll. The two ends of the paper strip are respectively connected to the unwind roll and the take-up roll. The paper strip passes through the paper outlet hole, extends to the outside of the support surface of the bracket, and passes through the paper take-up hole back into the inner cavity of the bracket.

2. The automatic paper changing structure of the slit lamp microscope for ophthalmic examination according to claim 1, wherein The bracket is provided with a detachable structure, which includes a sealing plate and screws. The sealing plate forms one side or surface of the bracket, and the screws detachably fix the sealing plate to the bracket body.

3. The automatic paper-changing structure of the ophthalmic slit-lamp microscope examination instrument according to claim 1, characterized in that, The support surface of the bracket is a concave arc-shaped surface.

4. The automatic paper-changing structure of the ophthalmic slit-lamp microscope examination instrument according to claim 3, characterized in that, The tray surface is also provided with several shuttle holes, which are located between the paper output hole and the paper receiving hole; the several shuttle holes divide the tray surface into several independent small tray surfaces.

5. The automatic paper-changing structure of the ophthalmic slit-lamp microscope examination instrument according to claim 4, characterized in that, The tray has several guide rods inside that correspond to the shuttle holes, and the number of guide rods is the same as the number of shuttle holes. Along the conveying direction, the paper tape outside the tray enters the interior of the tray through the shuttle hole, passes around the corresponding guide rod, and then comes out of the shuttle hole and extends forward.

6. The automatic paper-changing structure of the ophthalmic slit-lamp microscope examination instrument according to claim 1, characterized in that, The paper changing drive mechanism includes a paper changing drive motor and a paper changing transmission assembly, wherein the paper changing transmission assembly is connected between the paper changing drive motor and the winding wheel.

7. The automatic paper-changing structure of the ophthalmic slit-lamp microscope examination instrument according to claim 6, characterized in that, The output shaft of the paper-changing drive motor is perpendicular to the axis of the take-up reel; the paper-changing transmission assembly includes a bevel gear assembly.

8. The automatic paper-changing structure of the ophthalmic slit-lamp microscope examination instrument according to claim 6, characterized in that, The paper-changing drive mechanism also includes a motor cover for enclosing the paper-changing drive motor.

9. The automatic paper-changing structure of the ophthalmic slit-lamp microscope examination instrument according to claim 1, characterized in that, The bracket includes a chin bracket and a forehead bracket. The axes of the take-up and unwinding rollers in the chin bracket are both horizontally arranged, while the axes of the take-up and unwinding rollers in the forehead bracket are both vertically arranged.

10. The automatic paper-changing structure of the ophthalmic slit-lamp microscope examination instrument according to claim 9, characterized in that, The chin support and forehead support are connected to the bracket via a vertical adjustment structure.

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