CN106726115B

CN106726115B - Eyelid function corrector

Info

Publication number: CN106726115B
Application number: CN201611199561.4A
Authority: CN
Inventors: 周传棣; 范先群; 张赫
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2016-12-22
Filing date: 2016-12-22
Publication date: 2023-01-20
Anticipated expiration: 2036-12-22
Also published as: CN106726115A

Abstract

The invention discloses an eyelid function corrector, which comprises a spectacle frame and a spectacle frame, relates to the field of medical instruments, and further comprises a power supply, an electric wire, a motor, a gear, a cam group, a lever pair and an eyelid laminator group; the electric wire is arranged on the glasses frame, a first end of the electric wire is connected with the power supply, and a second end of the electric wire is connected with the motor; the motor is located the central junction of spectacle-frame, with the gear links to each other and drives the gear operation, the cam group with the gear cooperation, the cam group supports the lever pair, the lever pair set up in spectacle-frame upper portion, the lever pair with eyelid laminating group connects, eyelid laminating group cooperation the lever is to the motion. The eyelid function corrector of the invention can restore the visual field of the ptosis patient in a way of being closest to the natural physiological state by simulating the movement of the normal eyelid and maintain the health of the microenvironment of the ocular surface.

Description

Eyelid function corrector

Technical Field

The invention relates to the field of medical equipment, in particular to an eyelid function corrector.

Background

In clinic, especially in the specialized diagnosis and treatment process of the orbit diseases, patients with ptosis and incomplete eyelid closure are often seen, the ptosis can cause the upper visual field to be blocked when the patients look at the eye level, great inconvenience is brought to the working and living of the patients, and even the safe walking of the patients is seriously influenced.

At present, the mainstream treatment method is to lift the eyelids by using an operation method, but when a patient sleeps after the operation, the eyelids cannot be completely closed, the ocular surface can be damaged, and even a serious patient has corneal ulcer to cause blindness. Also because of this serious surgical complication, a significant proportion of patients, e.g., patients who are negative for Bell signs, are not amenable to such surgery, and current medical practice is ineligible for such patients.

Wahm limited company in its patent "compositions and methods for the non-surgical treatment of ptosis (CN 201280011433.6)" teaches the use of oxymetazoline and phenylephrine in a suitable formulation for administration to a patient for increasing the patient's field of view. However, such drugs significantly increase the blood pressure of patients and are not suitable for long-term use, and the amount of the drug to be administered is difficult to reasonably estimate according to the severity of the ptosis of each patient.

The patent "eye lid lifting paste (CN 201020296557.1)" pertaining to longhua hospital, medical university in shanghai proposes to control eyelid droop by using the elastic potential energy of a spring. However, the method only supports the eyelids, causes the patient to feel large resistance when closing the eyes, is easy to cause fatigue, and is not suitable for long-time wearing; therefore, the eyelid lifting patch cannot ensure that the eyelids of the patient move rhythmically like a normal person, so that the eye surface of the patient is difficult to maintain the normal covering of the eyelid and conjunctiva and the moistening of the tears, and the eye surface state of the normal person is achieved. And the elastic potential energy is difficult to control when in use, and is difficult to be universally used for each patient due to different disease severity of each patient.

In order to relieve the pain of such patients and to remedy the disadvantages of surgical treatment, those skilled in the art have been devoted to developing a pair of spectacles with the assistance and simulation of eyelid movements to simulate the movements of normal human eyelids, to restore the visual field of patients with ptosis in a manner most close to the natural physiological state, and to maintain the health of the microenvironment of the ocular surface. The eyelid function corrector is mainly used for assisting eyelid movement, reducing the influence of diseases on life on the premise of avoiding operation pain, and still needing operation or medicine if ptosis or incomplete eyelid closure needs to be treated.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to solve the problem of the occlusion of the upper visual field when the patient looks straight up by using an eyelid orthosis.

In order to achieve the purpose, the invention provides an eyelid function corrector, which comprises a glasses frame and a glasses frame, and is characterized by further comprising a power supply 1, an electric wire 2, a motor 3, a gear 4, a cam group 5, a lever pair 6 and an eyelid laminator group 7; the electric wire 2 is arranged on the glasses frame, a first end of the electric wire 2 is connected with the power supply 1, and a second end of the electric wire 2 is connected with the motor 3; the motor 3 is located the central junction of spectacle-frame, with gear 4 links to each other and drives gear 4 operates, cam group 5 with gear 4 cooperation, cam group 5 supports lever pair 6, lever pair 6 is set up in spectacle-frame upper portion, lever pair 6 with eyelid laminating group 7 is connected, eyelid laminating group 7 cooperation the lever is to 6 movements.

Further, the cam set 5 includes a first cam 51 and a second cam 52, and the first cam 51 and the second cam 52 are respectively disposed on two sides of the gear 4.

Further, the first cam 51 includes a cam body 511 and a cam gear 512, the first cam 51 is engaged with the gear 4 through the cam gear 512, and the second cam 52 is engaged with the gear 4 through the cam gear 512.

Further, when the gear 4 rotates, the first cam 51 rotates in the same direction by engaging with the gear 4, and the second cam 52 rotates in the opposite direction by engaging with the gear 4.

Further, the maximum diameter of the first cam 51 occupies the entire gear arc at a ratio of T/T + T, where T is a blink cycle and T is a blink time.

Furthermore, the time of one rotation of the gear is set to be T + T, T is a blinking period, and T is a blinking time.

In a preferred embodiment, the lever pair 6 comprises a first lever 61 and a second lever 62, the first cam 51 supports the first lever 61, the second cam 52 supports the lever 62, the first lever 61 is movably connected to the eyeglass frame by a support shaft 611, and the support shaft 611 is provided as a fulcrum of the first lever 61.

Further, the eyelid doubler set 7 comprises a first eyelid doubler 71 and a second eyelid doubler 72, the first lever 61 and the first eyelid doubler 71 are movably connected through a connecting shaft 612, and the second lever 62 and the second eyelid doubler 72 are movably connected through a connecting shaft 612.

Further, the first eyelid applier 71 is arranged in a long strip shape, protruding ears 712 are arranged in the middle of the first eyelid applier 71, through holes 711 are formed in the ears 712, the first eyelid applier 71 is matched with the connecting shaft 612 through the through holes 711 and movably connected with the first lever 61, the first eyelid applier 71 is in contact with the eyelid of a wearer, the surface of the first eyelid applier 71 is smooth, the eyelid texture is soft, and corners are in arc transition.

Further, the first cam 51 cooperates with the gear 4 to move, the first cam 51 drives the first lever 61 to move, when the cam rotates, the first lever 61 converts the circular motion of the first cam 51 into a linear motion reciprocating up and down, and the first eyelid fitting device 71 cooperates with the first lever 61 to reciprocate up and down.

In another preferred embodiment, the power source is a battery.

Further, the power supply is disposed on both sides of the eyeglass frame.

The eyelid function corrector of the invention can restore the visual field of the ptosis patient in a way of being closest to the natural physiological state by simulating the movement of the normal eyelid and maintain the health of the microenvironment of the ocular surface. In addition, the eyelid function corrector is economical and practical, so that the patient can avoid the pain of the operation and can wear the eyelid function corrector for a long time. In addition, the method does not need any medicine taken by the patient, and avoids the side effect of the whole body. In addition, the mechanism can tailor the maximum and minimum diameters of the cam in the mechanism, and their respective proportions, based on the habits of measuring eyelid height and interrogating the patient for blinking, to better control the amplitude and timing of movement of the eyelid depressor.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is an overall perspective view of a preferred embodiment of the present invention;

FIG. 2 is an overall front view of a preferred embodiment of the present invention;

FIG. 3 is a cam set according to a preferred embodiment of the present invention;

FIG. 4 is a first cam of a preferred embodiment of the present invention;

FIG. 5 is a first lever of a preferred embodiment of the present invention;

FIG. 6 is a first lever of a preferred embodiment of the present invention engaged with a cam set and an eyelid doubler;

FIG. 7 is an eyelid doubler in accordance with a preferred embodiment of the present invention;

figure 8 is a schematic view of a gear driven cam set and eyelid doubler in accordance with a preferred embodiment of the present invention.

In the figure, 1-power source, 2-wire, 3-motor, 4-gear, 5-cam group, 51-first cam, 511-cam body, 512-cam gear, 52-second cam, 6-lever pair, 61-first lever, 611-supporting shaft, 612-connecting shaft, 62-second lever, 7-eyelid jointer, 71-first eyelid jointer, 711-through hole, 712-lug.

Detailed Description

The preferred embodiment of the eyelid function corrector according to the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiment. In the following description of the preferred embodiments of the present invention, specific details are set forth in order to provide a thorough understanding of the present invention.

Example 1:

as shown in fig. 1 and fig. 2, the invention provides an eyelid function corrector, which comprises a glasses frame, a power supply 1, an electric wire 2, a motor 3, a gear 4, a cam set 5, a lever pair 6 and an eyelid doubler 7; electric wire 2 arranges on the spectacle-frame, the first end of electric wire 2 is connected with power 1, this power 1 is the battery, this power 1 arranges in the spectacle-frame both sides, the second end of electric wire 2 is connected with motor 3, motor 3 is located the central junction of spectacle-frame, link to each other and drive the operation of gear 4 with gear 4, cam group 5 and the cooperation of gear 4, cam group 5 supports the lever to 6, the lever is to 6 being set up in spectacle-frame upper portion, the lever is to 6 being connected with eyelid laminating group 7, eyelid laminating group 7 cooperation lever is to 6 movements.

As shown in fig. 3, the cam block 5 includes a first cam 51 and a second cam 52, and the first cam 51 and the second cam 52 are respectively provided on both sides of the gear 4. When the gear 4 rotates, the first cam 51 rotates in the same direction by engaging with the gear 4, and the second cam 52 rotates in the opposite direction by engaging with the gear 4.

As shown in fig. 4, the first cam 51 includes a cam body 511 and a cam gear 512, the first cam 51 is engaged with the gear 4 through the cam gear 512, and the second cam 52 is engaged with the gear 4 through the cam gear 512. The motor operates at the uniform velocity in this design, controls the motion of lever through cam radial's change, and the motion is steady, and motor motion frequency is lower relatively, because this glasses need be worn for a long time to this kind of patient, and this design is favorable to the long-time operation of motor, and the mode that other motors drove needs the operating speed of the operation of single chip microcomputer control motor, needs the programming, and motor rotation speed is at the uniform velocity, and operating frequency is high, the easy problem that appears in the course of the work.

The first cam 51 has a maximum diameter setting angle section of (0 to 152.75 °), a minimum diameter setting angle section of (221.37 to 291.37 °), a maximum cam diameter of 3.25mm, and a minimum cam diameter of 1.82mm.

The maximum diameter of the first cam 51 occupies the entire gear arc at a ratio of T/T + T, T being a blink cycle and T being a blink duration. The time for one rotation of the gear 4 is set to T + T, T is a blink cycle, and T is a blink time. The cam is preferably made of light and hard material, and the thickness of the cam is 0.8-1.2mm. According to statistics, normal people blink ten times per minute on average, normally blink once in 2-6 seconds, and each blink takes 0.2-0.4 second. Taking blink every 3 seconds and blink every 0.3 second as an example, the time for one rotation of the gear is set to be 3.3 seconds, and the maximum diameter of the whole circumference is set to be 10/11 of the circular arc of the gear.

As shown in fig. 2, 5 and 6, the pair of levers 6 includes a first lever 61 and a second lever 62, the first cam 51 supports the first lever 61, the second cam 52 supports the second lever 62, the first lever 61 is movably connected to the eyeglass frame by a support shaft 611, and the support shaft 611 is provided as a fulcrum of the first lever 61. The fulcrum of the first lever 61 and the second lever 62 is horizontally positioned 6-8mm inward of the outer edge of the frame, and when the first lever 61 contacts with the maximum diameter of the cam of the first cam 51, the first lever does not exceed the upper edge of the frame, when the first lever 61 contacts with the minimum diameter of the cam of the first cam 51, the first lever is not lower than the lower edge of the frame, and when the second lever 62 contacts with the maximum diameter of the cam of the second cam 52, the second lever does not exceed the upper edge of the frame, and when the second lever 62 contacts with the minimum diameter of the cam of the second cam 52, the second lever is not lower than the lower edge of the frame. The distance between the support shaft 611 and the outer edge of the first lever 61 is 3-5mm along the radial central axis, the distance between the contact point of the support shaft 611 and the first cam 51 is 45-50mm along the radial central axis, and when the contact point of the support shaft 611 and the first cam 51 is in the distance interval, the lever moment is large.

As shown in fig. 5 and 6, the eyelid doubler set 7 includes a first eyelid doubler 71 and a second eyelid doubler 72, the first lever 61 is movably connected with the first eyelid doubler 71 through a connecting shaft 612, and the second lever 62 is movably connected with the second eyelid doubler 72 through a connecting shaft 612. The connecting shaft 612 is located at the middle point of the contact point of the central shaft of the first lever 61 and the first cam 51 in the radial direction, and by the arrangement, the first eyelid tightener 71 has stronger stability.

As shown in fig. 7, the first eyelid fitting device 71 is configured in a long strip shape, a protruding ear 712 is disposed in the middle of the first eyelid fitting device 71, a through hole 711 is disposed on the ear 712, the first eyelid fitting device 71 is movably connected with the first lever 61 through the through hole 711 matching with the connecting shaft 612, the first eyelid fitting device 71 is in contact with an eyelid of a wearer, the surface of the first eyelid fitting device 71 is smooth, the corners of the first eyelid fitting device are in arc transition, the first eyelid fitting device is made of silica gel, and a friction point (not shown) is disposed on the surface of the first eyelid fitting device to increase friction.

As shown in fig. 6, the first cam 51 drives the first lever 61 to move, when the cam rotates, the first lever 61 converts the circular motion of the first cam 51 into a linear motion reciprocating up and down, the first eyelid adhesion device 71 is matched with the first lever 61 to reciprocate up and down, the second cam 52 drives the second lever 62 to move, when the cam rotates, the second lever 62 converts the circular motion of the second cam 52 into a linear motion reciprocating up and down, and the second eyelid adhesion device 72 is matched with the second lever 62 to reciprocate up and down.

As shown in fig. 8, the rotation direction of the gear 5 is F, the first cam 51 rotates in cooperation with the gear 4, the rotation direction is F, the first cam 51 drives the first lever 61 to move, when the first cam 51 rotates, the first lever 61 converts the circular motion of the first cam 51 into the linear motion of the first eyelid jointer 71 reciprocating up and down, when the distance between the central axis of the first cam 51 and the contact point of the first cam 61 is the minimum radius of the first cam 51, the first eyelid jointer is located at the position a, the eyelid of the patient is closed, when the distance between the central axis of the first cam 51 and the contact point of the first cam 61 passes through the minimum cam radius, the distance between the central axis of the first cam 51 and the contact point of the first lever 61 is gradually increased, the eyelid is gradually lifted up to the maximum radius of the cam, the first eyelid jointer 71 is located at the position B, the eyelid of the patient is completely opened, after a few seconds, the first cam 51 runs to the radius of the first cam 51, and as the distance between the maximum axis of the central axis of the contact point of the first cam 51 and the first lever 61 is gradually decreased, the first cam 51 and the first cam contact point of the eyelid is closed, the first cam 51 is located at the minimum cam radius of the first cam 51, the first cam, the eye of the first cam, the first cam 51 is completely closed.

Example 2:

as shown in fig. 1 and fig. 2, the invention provides an eyelid function corrector, which comprises a glasses frame, a power supply 1, an electric wire 2, a motor 3, a gear 4, a cam set 5, a lever pair 6 and an eyelid doubler 7; electric wire 2 arranges on the spectacle-frame, the first end of electric wire 2 is connected with power 1, this power 1 is the battery, this power 1 arranges in the spectacle-frame both sides, the second end of electric wire 2 is connected with motor 3, motor 3 is located the central junction of spectacle-frame, link to each other and drive gear 4 operation with gear 4, cam group 5 and gear 4 cooperation, cam group 5 supports lever pair 6, the lever pair 6 is set up in spectacle-frame upper portion, the lever pair 6 is connected with eyelid laminating group 7, eyelid laminating group 7 cooperation lever pair 6 moves.

As shown in fig. 3, the cam group 5 includes a first cam 51 and a second cam 52, and the first cam 51 and the second cam 52 are respectively provided on both sides of the gear 4. When the gear 4 rotates, the first cam 51 rotates in the same direction by engaging with the gear 4.

As shown in fig. 4, the first cam 51 includes a cam body 511 and a cam gear 512, and the first cam 51 is engaged with the gear 4 through the cam gear 512.

The maximum diameter of the first cam 51 occupies the entire gear arc at a ratio of T/T + T, T being a blink cycle and T being a blink duration. The time for one rotation of the gear 4 is set to T + T, T is a blink cycle, and T is a blink time. According to statistics, normal people blink for ten times per minute on average, normally blink for 2-6 seconds, and each blink takes 0.2-0.4 second. Here, taking an example of blinking once in 1 second and 0.1 second per blink, the time for one rotation of the gear is set to 1.1 second, and the maximum diameter is set to be 10/11 of the entire circular arc of the gear in the entire circumference.

As shown in fig. 5 and 6, the lever pair 6 includes a first lever 61 and a second lever 62, the first cam 51 supports the first lever 61, the first lever 61 is movably connected with the eyeglass frame by a support shaft 611, and the support shaft 611 is provided as a fulcrum of the first lever 61.

As shown in fig. 5 and 6, the eyelid doubler set 7 includes a first eyelid doubler 71 and a second eyelid doubler 72, and the first lever 61 and the first eyelid doubler 71 are movably connected by a connecting shaft 612.

As shown in fig. 7, the first eyelid applier 71 is configured to be a long strip, a protruding ear 712 is arranged in the middle of the first eyelid applier 71, a through hole 711 is arranged on the ear 712, the first eyelid applier 71 is movably connected with the first lever 61 through the through hole 711 and the connecting shaft 612, the first eyelid applier 71 is in contact with an eyelid of a wearer, the first eyelid applier 71 is smooth in surface, soft in texture, and in arc transition at corners, the first eyelid applier is made of silica gel, and friction points (not shown in the drawing) are arranged on the surface to increase friction.

As shown in fig. 6, the first cam 51 drives the first lever 61 to move, and when the cam rotates, the first lever 61 converts the circular motion of the first cam 51 into a linear motion reciprocating up and down, and the first eyelid retractor 71 cooperates with the first lever 61 to reciprocate up and down.

As shown in fig. 8, the rotation direction of the gear 5 is F, the first cam 51 rotates in cooperation with the gear 4, the rotation direction is F, the first cam 51 drives the first lever 61 to move, when the first cam 51 rotates, the first lever 61 converts the circular motion of the first cam 51 into the linear motion of the first eyelid laminator 71 reciprocating up and down, when the distance between the contact point of the central axis of the first cam 51 and the first lever 61 is the minimum radius of the first cam 51, the first eyelid laminator is located at position a, the eyelid of the patient is closed, when the distance between the central axis of the first cam 51 and the contact point of the first cam 61 passes through the minimum cam radius, the distance between the central axis of the first cam 51 and the contact point of the first lever 61 is gradually increased, the eyelid is gradually lifted up, when the maximum radius of the cam is reached, the first eyelid laminator 71 is located at position B, the eyelid of the patient is completely opened, after a few seconds, the first cam 51 runs to the radius end point, and as the distance between the maximum axis of the contact point of the first cam 51 and the first cam 61 is gradually decreased, the distance between the first cam 51 and the first cam is completely closed.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. An eyelid function corrector comprises a spectacle frame and a spectacle frame, and is characterized by further comprising a power supply (1), an electric wire (2), a motor (3), a gear (4), a cam group (5), a lever pair (6) and an eyelid doubler (7); the electric wire (2) is arranged on the glasses frame, a first end of the electric wire (2) is connected with the power supply (1), and a second end of the electric wire (2) is connected with the motor (3); the motor (3) is located at the central connection position of the glasses frame, is connected with the gear (4) and drives the gear (4) to operate, the cam group (5) is matched with the gear (4), the cam group (5) supports the lever pair (6), the lever pair (6) is arranged at the upper part of the glasses frame, the lever pair (6) is connected with the eyelid laminating group (7), and the eyelid laminating group (7) is matched with the lever pair (6) to move; the cam group (5) comprises a first cam (51) and a second cam (52), the first cam (51) and the second cam (52) are respectively arranged on two sides of the gear (4), the first cam (51) comprises a cam body (511) and a cam gear (512), the first cam (51) is matched with the gear (4) through the cam gear (512), and the second cam (52) is matched with the gear (4) through the cam gear (512); the lever pair (6) comprises a first lever (61) and a second lever (62), the first cam (51) supports the first lever (61), the second cam (52) supports the second lever (62), the first lever (61) is movably connected with the glasses frame through a support shaft (611), the support shaft (611) is arranged as a fulcrum of the first lever (61), the eyelid doubler group (7) comprises a first eyelid doubler (71) and a second eyelid doubler (72), the first lever (61) and the first eyelid doubler (71) are movably connected through a connecting shaft (612), and the second lever (62) and the second eyelid doubler (72) are movably connected through a connecting shaft (612); the maximum diameter of the first cam (51) occupies the whole gear circular arc at a ratio of T/(T + T), and the time of one rotation of the gear is set to be T + T, wherein T is a blinking period and T is a time for blinking.

2. The eyelid function orthosis according to claim 1, characterized in that the first cam (51) rotates in the same direction by engaging the gear (4) and the second cam (52) rotates in the opposite direction by engaging the gear (4) when the gear (4) rotates.

3. The eyelid function corrector according to claim 1, characterized in that the first eyelid doubler (71) is configured as a long strip and a protruding ear (712) is provided in the middle of the first eyelid doubler (71), a through hole (711) is provided on the ear (712), the first eyelid doubler (71) is movably connected to the first lever (61) through the through hole (711) in cooperation with the connecting shaft (612), the first eyelid doubler (71) is in contact with the eyelid of the wearer, the surface of the first eyelid doubler (71) is smooth, and the corners adopt circular arc transition.

4. The eyelid function orthosis according to claim 3, wherein the first cam (51) is coupled to the gear (4) for movement, the first cam (51) moves the first lever (61), the first lever (61) converts a circular movement of the first cam (51) into a linear movement reciprocating up and down when the first cam rotates, and the first eyelid tightener (71) is coupled to the first lever (61) for reciprocating up and down.