Adjustable external eyelid speculum
By designing an adjustable external eyelid speculum, which uses an arc-shaped eyelid pulling arm and a torsion spring to achieve contactless eyelid opening, the infection risk and operational difficulty of conventional eyelid speculum are solved, improving examination accuracy and patient compliance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-16
- Publication Date
- 2026-03-13
Smart Images
Figure CN121647587A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of ophthalmic clinical equipment technology, specifically relating to an adjustable external eyelid opener. Background Technology
[0002] In elderly individuals, eyelid muscle atrophy is common. Children often cannot cooperate during eye examinations, and their eyes may involuntarily move during fixation tests, all of which hinder the smooth progress of ophthalmological examinations. In these cases, an eyelid speculum is necessary. However, with conventional eyelid speculum, the hooks must contact the eye and conjunctiva, increasing the risk of infection. Furthermore, the metal material of the speculum increases eye pressure and pain, reducing patient compliance. Clinically, physicians often use cotton swabs to gently pry open the eyelids from the skin side. This method is not only difficult to perform, but also prevents the patient's face from adhering to the instrument, reducing accuracy and increasing examination time. It also results in a poor patient experience, accompanied by symptoms such as tearing and red eyes. Additionally, ingrown eyelashes are common in the elderly and children with facial obesity. When the eyelashes curve inwards, even with a conventional eyelid speculum, the eyelashes on both sides of the hook remain inwards, causing discomfort and inevitably affecting examination efficiency. Summary of the Invention
[0003] In view of the problems of conventional eyelid openers described in the background art, the purpose of this invention is to provide an adjustable external eyelid opener.
[0004] To achieve the above objectives, the specific technical solution adopted by the present invention is as follows: An adjustable external eyelid opener includes two symmetrically placed eyelid traction arms. Each eyelid traction arm is integrally formed from a first arc-shaped traction arm and a second arc-shaped traction arm, with the tail of the first arc-shaped traction arm connected to the head of the second arc-shaped traction arm. The arc directions of the first and second arc-shaped traction arms are opposite, and the arc length of the first arc-shaped traction arm is greater than that of the second arc-shaped traction arm. The curvature of the first arc-shaped traction arm is adapted to the physiological curvature of the human eye socket. The width of the first arc-shaped traction arm is adapted to the size of the physiological gap between the human eye socket and the eyeball. The tail of the second arc-shaped traction arm is flat and large, serving as a handle, while the width of the remaining part is less than or equal to the width of the first arc-shaped traction arm. A dumbbell-shaped component is fixedly fitted in the middle of the first arc-shaped traction arm, and an elliptical component is fixedly fitted at the end. Two eyelid pulling arms are cross-hinged at the connection between the first and second arc-shaped pulling arms. A spring is provided between the two second arc-shaped pulling arms near the cross-hinged position. The two ends of the spring are fixed to the top surface of the two second arc-shaped pulling arms respectively. The spring ensures that the two eyelid pulling arms are in a naturally open state.
[0005] Preferably, the elliptical component and the dumbbell-shaped component each have through holes adapted to the first arc-shaped pulling arm. The first arc-shaped pulling arm passes through the through holes on the elliptical component and the dumbbell-shaped component respectively, thereby fixing both components onto the first arc-shaped pulling arm.
[0006] Preferably, the two outer ends of the through hole are sealed with adhesive to secure the oval / dumbbell-shaped component.
[0007] Preferably, the spring is a torsion spring; each of the two eyelid pulling arms has a pin hole at the connection between the first arc-shaped pulling arm and the second arc-shaped pulling arm, the two pin holes are placed facing each other, and a matching pin is inserted into the pin hole; the helical part of the torsion spring is sleeved on the pin, and the two torsion arms at both ends of the torsion spring are respectively fixed to the top surface of the two second arc-shaped pulling arms.
[0008] Preferably, the parts of the first arc-shaped pull arm and the second arc-shaped pull arm, except for the handle, are all thin strips or thin cylinders.
[0009] Ideally, the eyelid pull arm is made of corrosion-resistant metal material, while the oval and dumbbell-shaped components are made of flexible materials.
[0010] Ideally, the eyelid pull arm is made of titanium alloy or stainless steel, while the oval and dumbbell-shaped components are made of silicone or rubber.
[0011] Compared to conventional eyelid openers, this invention has the following advantages: (1) When using the eyelid opener of the present invention, it is placed outside the eyelid and does not directly contact the eye and eyelid conjunctiva, thus reducing the risk of ocular surface infection; (2) When the eyelid opener of the present invention is used, the eyelid pulling arm is relatively thin and located in the physiological gap between the eye socket and the eyeball, which will not cause too much pressure on the eye, greatly reducing the pain and improving patient compliance. (3) The spring at the cross hinge position of the present invention can bring the eyelid pulling device into a close state when the two handles are pressed, and bring the eyelid pulling device into an open state when the handles are not pressed (released). Therefore, the eyelid opener of the present invention can easily open the eyelid by pressing and then releasing the handles, and the operation is simple. (4) When the eyelid opener of the present invention is used, it can make the eyelid and eyelashes turn outward, which can relieve eye discomfort and improve examination efficiency. Attached Figure Description
[0012] Figure 1 : A schematic diagram of the overall main structure of the eyelid opener of this invention; Figure 2 : A schematic diagram of the main structure of a single eyelid traction arm; The attached figures are labeled as follows: 1-eyelid pulling arm, 101-first arc-shaped pulling arm, 102-second arc-shaped pulling arm; 2-elliptical component; 3-dumbbell-shaped component; 4-torsion spring; 5-handle; 6-pin hole; 7-pin. Detailed Implementation
[0013] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0014] Example 1
[0015] like Figures 1-2As shown, an adjustable external eyelid opener includes two symmetrically placed eyelid traction arms 1. Each eyelid traction arm 1 is integrally formed from a first arc-shaped traction arm 101 and a second arc-shaped traction arm 102, with the tail of the first arc-shaped traction arm 101 connected to the head of the second arc-shaped traction arm 102. The arc directions of the first arc-shaped traction arm 101 and the second arc-shaped traction arm 102 are opposite, and the arc length of the first arc-shaped traction arm 101 is greater than the arc length of the second arc-shaped traction arm 102. The curvature of the first arc-shaped traction arm 101 is adapted to the physiological curvature of the human eye socket. The first arc-shaped traction arm 101 is thin and strip-shaped, and its width is adapted to the size of the physiological gap between the human eye socket and the eyeball. The tail of the second arc-shaped traction arm 102 is flat and large (i.e., the tail of the second arc-shaped traction arm 102 is flatter than the part of the second arc-shaped traction arm 102 near its tail). The handle 5 is wider than the other part, and the width of the rest is the same as the width of the first arc-shaped pulling arm 101. A dumbbell-shaped component 3 is fixedly sleeved in the middle of the first arc-shaped pulling arm 101, and an elliptical component 2 is fixedly sleeved at the end. The two eyelid pulling arms 1 are cross-hinged at the connection between the first arc-shaped pulling arm 101 and the second arc-shaped pulling arm 102. The cross-hinged structure is as follows: each of the two eyelid pulling arms 1 has a pin hole 6 at the connection between the first arc-shaped pulling arm 101 and the second arc-shaped pulling arm 102. The two pin holes 6 are placed facing each other, and a matching pin 7 is inserted into the pin hole 6. A torsion spring 4 is provided at the cross-hinged position. The spiral part of the torsion spring 4 is sleeved on the pin 7. The two ends of the torsion spring 4 are respectively fixed to the top surface of the two second arc-shaped pulling arms 102. The torsion spring 4 ensures that the two eyelid pulling arms 1 are in a naturally open state. The elliptical component 2 and the dumbbell-shaped component 3 each have through holes adapted to the first arc-shaped pulling arm 101. The first arc-shaped pulling arm 101 passes through the through holes on the elliptical component 2 and the dumbbell-shaped component 3 respectively. The two outer ends of the through holes are respectively sealed with adhesive, thereby fixing the elliptical component 2 and the dumbbell-shaped component 3 onto the first arc-shaped pulling arm 101. The eyelid pulling arm 1 is made of titanium alloy, while the elliptical component 2 and the dumbbell-shaped component 3 are both made of silicone.
[0016] The method of using the eyelid opener of this invention is as follows: 1. Placement method: Press the upper and lower handles 5 inward with your thumb and index finger respectively, so that the two eyelid pulling arms 1 come together; instruct the patient to close their eyes, place the oval parts 2 of the upper and lower eyelid pulling arms 1 on the upper and lower eyelids close to the nose, place the dumbbell parts 3 of the upper and lower eyelid pulling arms 1 on the center of the upper and lower eyelids respectively, and place the second arc-shaped pulling arm 102 near the cross hinge position to contact and fit against the temporal skin; slowly release the two handles 5, under the elastic force of the torsion spring 4, the upper and lower first arc-shaped pulling arms 101 open outward respectively, and the upper and lower oval parts 2 and dumbbell parts 3, along with the upper and lower eyelids, enter the physiological space between the upper and lower eye sockets and the eyeball respectively. At this time, the upper and lower first arc-shaped pulling arms 101 together fix the eyelid opener; 2. Removal method: Press the upper and lower handles 5 inward again with your thumb and index finger to bring the two eyelid pulling arms 1 together. The upper and lower oval parts 2 and dumbbell-shaped parts 3 will bring the upper and lower eyelids out of the physiological gap between the upper and lower eye sockets and the eyeballs respectively. Remove the eyelid opener and move it away from the eyelids.
Claims
1. An adjustable external eyelid opener, characterized in that: It includes two eyelid pulling arms placed symmetrically one above the other. Each eyelid pulling arm is integrally formed from a first arc-shaped pulling arm and a second arc-shaped pulling arm, and the tail of the first arc-shaped pulling arm and the head of the second arc-shaped pulling arm are connected. The arc directions of the first arc-shaped pulling arm and the second arc-shaped pulling arm are opposite, and the arc length of the first arc-shaped pulling arm is greater than the arc length of the second arc-shaped pulling arm. The curvature of the first arc-shaped pulling arm is adapted to the physiological curvature of the human eye socket; the width of the first arc-shaped pulling arm is adapted to the size of the physiological gap between the human eye socket and the eyeball; the tail of the second arc-shaped pulling arm is flat and large as a handle, and the width of the rest is less than or equal to the width of the first arc-shaped pulling arm; a dumbbell-shaped component is fixedly fitted in the middle of the first arc-shaped pulling arm, and an elliptical component is fixedly fitted at the end; Two eyelid pulling arms are cross-hinged at the connection between the first and second arc-shaped pulling arms. A spring is provided between the two second arc-shaped pulling arms near the cross-hinged position. The two ends of the spring are fixed to the top surface of the two second arc-shaped pulling arms respectively. The spring ensures that the two eyelid pulling arms are in a naturally open state.
2. The adjustable external eyelid opener as described in claim 1, characterized in that: The elliptical component and the dumbbell-shaped component each have through holes adapted to the first arc-shaped pulling arm. The first arc-shaped pulling arm passes through the through holes on the elliptical component and the dumbbell-shaped component respectively, thereby fixing both components onto the first arc-shaped pulling arm.
3. The adjustable external eyelid opener as described in claim 2, characterized in that: The two outer ends of the through hole extend inward and are sealed with adhesive to secure the oval / dumbbell-shaped component.
4. The adjustable external eyelid opener as described in claim 1, characterized in that: The spring is a torsion spring; each of the two eyelid pulling arms has a pin hole at the connection between the first arc-shaped pulling arm and the second arc-shaped pulling arm, the two pin holes are placed facing each other, and a matching pin is inserted into the pin hole; the helical part of the torsion spring is sleeved on the pin, and the two torsion arms at both ends of the torsion spring are respectively fixed to the top surface of the two second arc-shaped pulling arms.
5. The adjustable external eyelid opener as described in claim 1, characterized in that: Except for the handle, the parts of both the first and second arc-shaped pull arms are thin strips or thin cylinders.
6. The adjustable external eyelid opener as described in any one of claims 1 to 5, characterized in that: The eyelid pull arm is made of corrosion-resistant metal, while the oval and dumbbell-shaped components are made of flexible materials.
7. The adjustable external eyelid opener as described in claim 6, characterized in that: The eyelid puller arm is made of titanium alloy or stainless steel, while the oval and dumbbell-shaped parts are made of silicone or rubber.