TWM513672U - Detachable fixation lamp device and handheld ophthalmoscope - Google Patents

Description

External fixation lamp device and hand-held ophthalmoscope

The present invention relates to a fixation lamp device and an ophthalmoscope, and more particularly to an external fixation lamp device and a hand-held ophthalmoscope including the fixation lamp device.

The ophthalmoscope is a visual inspection tool used to observe the base of the eyeball, for example, to observe whether the retina, the optic disc, and the distribution of blood vessels are abnormal. The fixation source directs the subject to rotate the eyeball to a specific direction so that the operator can obtain the desired viewing range. Most of the conventional fixation light source systems introduce the fixation light source into the imaging system with the relay lens and then enter the substrate of the eyeball under test. Therefore, the conventional fixation light source system needs to use a larger number of lenses and the volume cannot be effectively reduced. Not suitable for handheld ophthalmoscopes. It will be appreciated that a hand-held ophthalmoscope that lacks a fixation source system will limit the observable range.

In view of this, how to integrate the fixation light source system into the hand-held ophthalmoscope is currently the goal of great efforts.

The present invention provides an external fixation lamp device and a hand-held ophthalmoscope, which are connected to the handheld ophthalmoscope by means of external connection of the fixation lamp device, and are guided by the rotation of the unmeasured eyeball. By measuring the rotation of the eyeball, the volume of the fixation lamp device can be effectively reduced and detachably integrated with the hand-held ophthalmoscope.

An external fixation lamp device according to an embodiment of the present invention is configured to be disposed on a hand-held ophthalmoscope. The external fixation lamp device comprises a light-emitting element, a joint and a movable arm. The illuminating element is used to provide a fixed light. The joint is detachably coupled to the hand held ophthalmoscope. The movable arm connects the light emitting element and the joint portion, wherein the movable arm moves the light emitting element relative to the joint portion to guide a non-measured eyeball to rotate to a specific direction.

A hand-held ophthalmoscope according to another embodiment of the present invention comprises a bottom eyepiece body and an external fixation light device. The ophthalmoscope main body includes an imaging lens module and a main body. The imaging lens module is configured to converge light reflected from one of the substrates of one of the tested eyeballs. The main body has a casing for holding the hand and an image sensing component, wherein the image sensing component is disposed in the casing for capturing the reflected light concentrated by the imaging lens module to form an image. The external fixation lamp device comprises a light-emitting element, a joint and a movable arm. The illuminating element is used to provide a fixed light. The joint is detachably coupled to the imaging lens module or the main body. The movable arm connects the light emitting element and the joint portion, wherein the movable arm moves the light emitting element relative to the joint portion to guide a non-measured eyeball to rotate to a specific direction.

In the following, the specific embodiments and the accompanying drawings are explained in detail, and it is easier to understand the purpose, technical content, characteristics and effects achieved by the present invention.

The various embodiments of the present invention will be described in detail below with reference to the drawings. In addition to the detailed description, the present invention may be widely practiced in other embodiments, and any alternatives, modifications, and equivalent changes of the described embodiments are included in the scope of the present invention. quasi. In the description of the specification, a number of specific details are provided for the reader to have a more complete understanding of the present invention; however, the present invention may be implemented without omitting some or all of the specific details. In addition, well-known steps or elements are not described in detail to avoid unnecessarily limiting the present invention. The same or similar elements in the drawings will be denoted by the same or similar symbols. It is to be noted that the drawings are for illustrative purposes only and do not represent the actual dimensions or quantities of the components. Some of the details may not be fully drawn in order to facilitate the simplicity of the drawings.

Referring to FIGS. 1 through 4, a hand-held ophthalmoscope according to an embodiment of the present invention includes an eyepiece body 11 and an external fixation lamp device 12. The ophthalmoscope main body 11 includes an imaging lens module 111 and a main body 112. Referring to FIG. 3, the imaging lens module 111 is configured to converge light reflected from one of the substrates of one of the tested eyeballs 20. For example, the imaging lens module 111 includes an illumination element 1111 and an imaging lens group including a plurality of lenses 1112. The illumination component 1111 is configured to provide an illumination light L1 incident on the substrate of the eyeball 20 under test. The imaging lens group concentrates the reflected light L2 from the base of the eyeball 20 under test. Preferably, the imaging lens module 111 can include a diaphragm 1113 disposed between the plurality of lenses 1112. The aperture 1113 is disposed inside the imaging lens module 111 to increase symmetry to eliminate aberrations of some odd-order items, thereby improving image quality.

The main body 112 has a housing 1121 for handheld and an image sensing component 1122. The image sensing component 1122 is disposed in the housing 1121. The image sensing component 1122 is configured to capture the reflected light L2 collected by the imaging lens module 111 to form an image, and is displayed on a display module 1123. In an embodiment, the user can use the adjustment ring 1124 exposed outside the housing 1121 to drive the image sensing component 1122 to move linearly along the optical axis of the imaging lens module 111 (ie, the direction of the arrow A) to adjust the appropriate focal length. In an embodiment, the imaging lens module 111 is connected to the host 112 in a replaceable manner, and the host 112 can be combined with different imaging lens modules 111 for different detections.

Referring to FIG. 1 and FIG. 4 , the external fixation lamp device 12 includes a light-emitting element 121 , a joint portion 122 , and a movable arm 123 . The light emitting element 121 is used to provide a fixed light. In an embodiment, the light emitting element 121 can be a light emitting diode. Preferably, the light-emitting element 121 can be a red light-emitting diode. It will be appreciated that the power source required for illumination of the illumination element 121 can be supplied by the battery 124, as shown in FIG. 4, or by the host 112 in a suitable circuit design. The joint portion 122 is detachably coupled to the ophthalmoscope main body 11. The movable arm 123 is connected between the light emitting element 121 and the joint portion 122. The movable arm 123 can move the light-emitting element 121 relative to the joint portion 122 to guide the unmeasured eyeball to rotate to a specific direction, so that the measured eyeball also rotates to a specific direction with the unmeasured eyeball, thereby obtaining an operation. The range of observations desired. For example, referring to FIG. 4, the operator movable arm 123 fixes the light-emitting element 121 to the upper, lower, left or right position to guide the eyeball to the upper, lower, left or right direction to facilitate the operator. Observe the base of the eyeball under test.

In an embodiment, the joint 122 includes a quick release structure. For example, referring to FIG. 4, pulling the fixing rod 1221 in the direction of the arrow B can release the annular clamping portion, and the operator can remove the external fixation lamp device 12. On the other hand, the fixing rod 1221 is pressed back in the opposite direction of the arrow B, and the annular holding portion is clamped and connected to the imaging lens module 111. Alternatively, in an embodiment, the joint portion may include a resilient member, such as a spring-loaded clip or an elastic strap, such that the external fixation light device can also be detachably coupled to the ophthalmoscope body 11. It should be noted that in the embodiment shown in FIG. 1 and FIG. 4, the joint portion 122 is annular to be sleeved on the imaging lens module 111, as shown in FIG. However, it is not limited thereto, and the joint portion can also be connected to the host in other suitable manners (for example, snapping or snapping).

In an embodiment, the movable arm 123 can be a flexible tubular body (such as a coil) or a multi-joint linkage, so that the operator can flex the movable arm 123 arbitrarily to move the light-emitting element 121 to a specific position, as shown in FIG. 4 . Shown. Referring to FIG. 5, in another embodiment, the movable arm includes a fixed rod 123a and a movable rod 123b. One end of the fixing rod 123a is connected to the joint portion 122. One end of the movable rod 123b is pivotally connected to the other end of the fixed rod 123a, and the other end of the movable rod 123b is connected to the light emitting element 121. According to this configuration, the light-emitting element 121 can be rotated to a specific direction with respect to the pivot shaft 123c.

In summary, the external fixation lamp device and the hand-held ophthalmoscope are connected to the hand-held ophthalmoscope by means of external connection of the fixation lamp device, and the eyeball under test is controlled by guiding the rotation of the unmeasured eyeball. The non-measured eyeball is rotated to a specific direction to facilitate observation, and therefore, the volume of the fixation lamp device of the present invention can be effectively reduced and detachably integrated with the hand-held ophthalmoscope.

The embodiments described above are only for explaining the technical idea and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them according to the scope of the patent. That is, the equivalent changes or modifications made by the people in accordance with the spirit revealed by this creation should still be covered by the scope of the patent of this creation.

11‧‧‧Eyescope main body
111‧‧‧ imaging lens module
1111‧‧‧Lighting components
1112‧‧‧ lens
1113‧‧‧Light
112‧‧‧Host
1121‧‧‧ Shell
1122‧‧‧Image sensing components
1123‧‧‧Display module
1124‧‧‧Adjustment ring
12‧‧‧External fixation lamp unit
121‧‧‧Lighting elements
122‧‧‧Combination
1221‧‧‧Fixed rod
123‧‧‧Active arm
123a‧‧‧ fixed rod
123b‧‧‧ activity pole
123c‧‧‧ pivot shaft
124‧‧‧Battery
20‧‧‧Accepted eyeballs
L1‧‧‧ illumination light
L2‧‧‧ reflected light

1 is a perspective view showing an exploded state of a hand-held ophthalmoscope according to an embodiment of the present invention. Fig. 2 is a perspective view showing the combined state of the hand-held ophthalmoscope according to an embodiment of the present invention. 3 is a schematic view showing the main body of the ophthalmoscope of the hand-held ophthalmoscope according to an embodiment of the present invention. 4 is a schematic view showing an external fixation lamp device of an embodiment of the present invention. Fig. 5 is a schematic view showing another embodiment of the external fixation lamp device of the present invention.

11‧‧‧Eyescope main body

111‧‧‧ imaging lens module

112‧‧‧Host

1123‧‧‧Display module

121‧‧‧Lighting elements

122‧‧‧Combination

123‧‧‧Active arm

Claims (18)

An external fixation lamp device for setting in a hand-held ophthalmoscope, the external fixation lamp device comprising: a light-emitting element for providing a fixation light; and a joint portion detachably Connected to the hand-held ophthalmoscope; and a movable arm connecting the light-emitting element and the joint, wherein the movable arm moves the light-emitting element relative to the joint to guide a non-measured eyeball to a specific direction. The external fixation lamp device of claim 1, wherein the light emitting element comprises a light emitting diode. The external fixation lamp device of claim 1, wherein the illuminating element comprises a red light emitting diode. The external fixation lamp device of claim 1, wherein the joint portion comprises a quick release structure. The external fixation lamp device of claim 1, wherein the joint portion comprises a resilient member. The external fixation lamp device of claim 1, wherein the joint portion is an annular shape to be sleeved on one of the handheld lens modules of the hand-held ophthalmoscope. The external fixation lamp device of claim 1, wherein the movable arm comprises a flexible tubular body or a multi-joint linkage. The external fixation lamp device of claim 1, wherein the movable arm comprises a fixing rod and a movable rod, wherein one end of the fixing rod is connected to the joint portion, and one end of the movable rod is pivotally connected to the fixing rod At the other end, the other end of the movable rod is connected to the light emitting element. A hand-held ophthalmoscope comprising: an eyepiece body comprising: an imaging lens module for concentrating light reflected from a substrate of one of the tested eyeballs; and a host having a housing for hand-held and An image sensing component, wherein the image sensing component is disposed in the casing, and is configured to capture the reflected light concentrated by the imaging lens module to form an image; and an external fixation lamp device, including a light-emitting element for providing a fixation light; a joint portion detachably coupled to the imaging lens module or the main body; and a movable arm connecting the light-emitting element and the joint portion, wherein The movable arm moves the light emitting element relative to the joint to guide a non-measured eyeball to rotate to a specific direction. The hand-held ophthalmoscope of claim 9, wherein the imaging lens module is coupled to the host in a replaceable manner. The hand-held ophthalmoscope according to claim 9, wherein the imaging lens module comprises: an illumination element for providing an illumination light incident on the substrate of the eyeball to be tested; and an imaging lens group for Converging the reflected light from the substrate of the subject's eye. The hand-held ophthalmoscope according to claim 9, wherein the light-emitting element of the external fixation lamp device comprises a light-emitting diode. The hand-held ophthalmoscope according to claim 9, wherein the light-emitting element of the external fixation lamp device comprises a red light-emitting diode. The hand-held ophthalmoscope according to claim 9, wherein the joint portion of the external fixation lamp device comprises a quick release structure. The hand-held ophthalmoscope according to claim 9, wherein the joint portion of the external fixation lamp device comprises a resilient member. The hand-held ophthalmoscope according to claim 9, wherein the joint portion of the external fixation lamp device is in a ring shape to be sleeved on the imaging lens module. The hand-held ophthalmoscope according to claim 9, wherein the movable arm of the external fixation lamp device comprises a flexible tubular body or a multi-joint linkage. The hand-held ophthalmoscope according to claim 9, wherein the movable arm of the external fixation lamp device comprises a fixing rod and a movable rod, wherein one end of the fixing rod is connected to the joint portion, and one end of the movable rod is The other end of the movable rod is pivotally connected to the other end of the fixed rod, and the other end of the movable rod is connected to the light emitting element.