JP7250592B2 - ophthalmic equipment - Google Patents

Description

The present invention relates to an ophthalmic device.

Patent Literature 1 discloses an ophthalmologic apparatus in which an apparatus main body is provided on a base via a driving section. The device body described in Patent Document 1 is provided with an intraocular pressure measurement unit that measures the intraocular pressure of the eye to be examined, and an eye characteristics measurement unit that measures other optical characteristics (ocular characteristics) of the eye to be examined. ing.

The driving unit described in Patent Document 1 is arranged such that the device main body is moved in the vertical direction (Y-axis direction), the front-rear direction (Z-axis direction), and the horizontal direction (X-axis direction) perpendicular to them with respect to the base portion. and move to . Specifically, the drive section described in Patent Document 1 has a Y-axis drive section, a Z-axis drive section, and an X-axis drive section, and the apparatus main body section is arranged in the vertical direction (Y-axis direction) with respect to the base section. ), the longitudinal direction (Z-axis direction), and the lateral direction (X-axis direction).

However, if a slide mechanism is provided to slide the main body of the apparatus, which includes an inspection section including a measurement section and an imaging section, the drive section becomes large-scaled, making it difficult to reduce the size of the ophthalmologic apparatus. be. Moreover, since it is difficult to reduce the size of the ophthalmic apparatus, it is difficult to save space and move the ophthalmic apparatus within the hospital ward. As described above, the ophthalmologic apparatus disclosed in Patent Document 1 has room for improvement in that it is difficult to reduce the size of the ophthalmologic apparatus. Therefore, it is desired to simplify the drive unit and to reduce the size of the ophthalmic apparatus.

JP 2018-51337 A

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ophthalmic apparatus capable of miniaturizing the apparatus.

The object is an ophthalmologic apparatus for optically acquiring data of an eye to be examined, the apparatus main body having an inspection optical system for optically examining the eye to be examined based on light reflected by the eye to be examined; a driving mechanism that supports the device main body and positions the device main body at arbitrary coordinates in a coordinate system having a vertical direction, a front-back direction, and a left-right direction perpendicular to the vertical direction and the front-back direction; The drive mechanism includes two or more arms that rotate about axes extending in the horizontal direction or the vertical direction, three or more arm drive units that rotate the two or more arms, the horizontal direction and the vertical direction. having two or more first axes extending in one of the directions and three or more second axes extending in the other of the horizontal direction and the vertical direction; is held to align the optical axis of the inspection optical system with the direction toward the eye to be inspected.

According to the ophthalmologic apparatus according to the present invention, the drive mechanism supports the apparatus main body having the inspection optical system for optically inspecting the eye to be inspected based on the light reflected by the eye to be inspected, and rotates in the vertical direction and the front-rear direction. The device body is positioned at arbitrary coordinates in a coordinate system having a direction and a horizontal direction. Further, the drive mechanism includes two or more arms, three or more arm drive units, two or more first shafts extending in one of the horizontal direction and the vertical direction, and the horizontal direction and the vertical direction. and three or more second axes extending to either one of the two. The arm rotates about a horizontally or vertically extending axis. The arm driving section rotates the arm. Then, the drive mechanism holds the posture of the apparatus main body and aligns the optical axis of the inspection optical system in the direction toward the eye to be inspected. At this time, the drive mechanism includes two or more first shafts extending in one of the horizontal direction and the vertical direction, and three or more second shafts extending in the other of the horizontal direction and the vertical direction. , make use of

In this way, the drive mechanism does not function as a slide mechanism for sliding the device main body having the inspection optical system, but rotates two or more arms by three or more arm drive units to move the device main body. Position at arbitrary coordinates. Further, the drive mechanism has two or more first axes and three or more second axes when the two or more arms are rotated by the three or more arm drive sections to position the apparatus body at arbitrary coordinates. is used to hold the posture of the main body of the apparatus and align the optical axis of the inspection optical system with the direction toward the eye to be inspected. As a result, it is possible to reduce the size of the ophthalmologic apparatus while ensuring the precision and accuracy of the examination.

In the ophthalmologic apparatus according to the present invention, preferably, the drive mechanism further includes a timing belt that is provided on an arm and rotates according to rotation of the arm to hold the attitude of the apparatus main body. .

According to the ophthalmologic apparatus of the present invention, the posture of the arm at the tip supporting the main body of the apparatus is maintained, and the optical axis of the examination optical system is aligned with the eye to be examined, without necessarily providing an arm drive section for rotating all the arms. You can always match the direction you are heading. Therefore, the number of arm drive units can be reduced, and the size of the ophthalmologic apparatus can be further reduced.

The ophthalmologic apparatus according to the present invention is preferably characterized by further comprising a stand having wheels that support the apparatus main body via the drive mechanism and are provided in a freely directional manner.

According to the ophthalmic device of the present invention, the ophthalmic device further comprises a stand. The stand supports the main body of the apparatus via a drive mechanism, and has wheels that are freely oriented. Therefore, the stand can move freely in all directions. As a result, the ophthalmologic apparatus can be easily and freely moved within the hospital ward.

In the ophthalmologic apparatus according to the present invention, preferably, the stand has a storage section for storing heavy objects including a power source.

According to the ophthalmologic apparatus according to the present invention, the stand accommodates a relatively heavy heavy object such as a power source in the lower part of the ophthalmologic apparatus. As a result, the ophthalmologic apparatus can be freely moved more easily and stably within the hospital ward.

In the ophthalmologic apparatus according to the present invention, preferably, the drive mechanism is provided detachably with respect to the apparatus main body, and is detachably attached to another examination apparatus different from the apparatus main body. do.

According to the ophthalmologic apparatus according to the present invention, by removing the apparatus main body from the drive mechanism, the drive mechanism can be stored in a hospital ward separately from the apparatus main body, for example, with two or more arms folded. . As a result, the size of the ophthalmologic apparatus can be further reduced, and the space of the ophthalmologic apparatus in the hospital ward can be reduced. Further, the drive mechanism is detachable from another inspection apparatus different from the main body of the apparatus. That is, the drive mechanism includes an ophthalmologic measuring device such as an eye refractive test device (refractometer, keratometer) and a tonometer, and an optical coherence tomography (OCT) to obtain a cross-sectional image using an optical coherence tomography (OCT). It is applicable to an ophthalmologic imaging apparatus such as a fundus camera for photographing the fundus. As a result, the ophthalmologic apparatus according to the present invention can be applied to various ophthalmologic measurement apparatuses and ophthalmic imaging apparatuses.

The ophthalmologic apparatus according to the present invention preferably further comprises a suspension arm attached at one end to a fixed portion in the hospital ward and supporting the apparatus main body via the drive mechanism at the other end. It is characterized by

According to the ophthalmologic apparatus according to the present invention, the main unit of the apparatus is not installed on the floor surface of the hospital ward via the drive mechanism, but fixed to the ceiling or wall of the hospital ward by the suspension arm via the drive mechanism. part, or from a fixed part of the device installed in the ward. As a result, it is possible to further save space for the ophthalmologic apparatus in the hospital ward.

ADVANTAGE OF THE INVENTION According to this invention, the ophthalmologic apparatus which can achieve size reduction of an apparatus can be provided.

1 is a side view showing an ophthalmologic apparatus according to a first embodiment of the present invention; FIG. It is a schematic diagram illustrating a first specific example of a drive mechanism of the present embodiment. It is a schematic diagram illustrating a second specific example of the drive mechanism of the present embodiment. FIG. 5 is a schematic diagram illustrating a third specific example of the drive mechanism of the embodiment; FIG. 5 is a side view showing an ophthalmologic apparatus according to a second embodiment of the present invention;

Preferred embodiments of the invention are described in detail below with reference to the drawings.
Since the embodiments described below are preferred specific examples of the present invention, various technically preferable limitations are applied. Unless otherwise stated, the invention is not limited to these modes. Further, in each drawing, the same constituent elements are denoted by the same reference numerals, and detailed description thereof will be omitted as appropriate.

FIG. 1 is a side view showing an ophthalmologic apparatus according to this embodiment.
The ophthalmologic apparatus 10 according to the present embodiment irradiates the subject's eye with light, and acquires information about the characteristics of the subject's eye based on the detection result of the light reflected by the subject's eye. That is, the ophthalmologic apparatus 10 according to this embodiment is an ophthalmologic apparatus that examines an eye to be examined based on light reflected by the eye to be examined. The inspection includes measurement for acquiring characteristics of the eye to be inspected and photographing for acquiring an image of the eye to be inspected.

Examples of ophthalmologic measurement devices include eye refraction testers (refractometers, keratometers) that measure the refractive characteristics of the eye to be examined, tonometers, and specular microscopes that measure corneal characteristics (corneal thickness, cell distribution, etc.). , a wavefront analyzer that obtains aberration information of an eye to be examined using a Hartmann-Shack sensor, an eye axial length measuring device, and the like.

Examples of ophthalmic imaging devices include optical coherence tomography (OCT) to obtain cross-sectional images, a fundus camera to photograph the fundus, and laser scanning using a confocal optical system. Examples include a scanning laser ophthalmoscope (SLO) that obtains an image of the fundus by using a scanning laser ophthalmoscope (SLO), and a slit lamp that obtains an image by cutting a light section of the cornea using a slit light.

As shown in FIG. 1, an ophthalmologic apparatus 10 according to the present embodiment includes a base portion 11, a drive mechanism 12, an apparatus main body portion 13, a display portion 14, a chin support portion 15, and a forehead support portion 16. , provided. The device body 13 is provided on the base 11 via the driving mechanism 12 . The base portion 11 accommodates the control portion 33 and the power source 36 . The chin rest part 15 and the forehead support part 16 are provided outside the apparatus main body part 13 .

In the ophthalmologic apparatus 10 according to the present embodiment, an intraocular pressure measuring section 20 and an eye characteristic measuring section 40 are provided inside the apparatus body section 13 . That is, the ophthalmologic apparatus 10 according to the present embodiment is a composite ophthalmologic apparatus including the intraocular pressure measurement unit 20 and the eye characteristics measurement unit 40 . The intraocular pressure measurement unit 20 measures the intraocular pressure of the subject's eye. The eye characteristic measurement unit 40 measures other optical characteristics (eye characteristics) of the subject's eye. However, at least one of the measurement unit and the imaging unit provided inside the device main body 13 is not limited to the intraocular pressure measurement unit 20 and the eye characteristic measurement unit 40 . For example, the ophthalmologic apparatus 10 may be a compound type ophthalmologic apparatus that includes an optical coherence tomography that obtains cross-sectional images using OCT and a fundus camera that photographs the fundus. That is, the ophthalmologic apparatus 10 according to the present embodiment may be any one of the ophthalmologic imaging apparatus and the ophthalmologic measurement apparatus described above as examples, or may be a combination of any of them. . In this manner, an inspection section including at least one of an imaging section having an imaging function and a measuring section having a measuring function is provided inside the apparatus main body section 13 . In the present embodiment, the case where the intraocular pressure measurement unit 20 and the eye characteristic measurement unit 40 are provided in the device main body 13 as an examination unit will be taken as an example.

Each of the intraocular pressure measurement unit 20 and the eye characteristic measurement unit 40 provided in the apparatus main body 13 has an inspection optical system for optically inspecting the subject's eye. For example, each of the intraocular pressure measurement unit 20 and the eye characteristic measurement unit 40 has an illumination optical system for irradiating the anterior segment and fundus of the eye to be inspected with illumination light, and an anterior segment image and a fundus image of the eye to be inspected. , etc., as an inspection optical system. The light output from the light source of the inspection optical system is applied to the eye to be inspected as light rays parallel to the optical axis O1 of the inspection optical system.

The display unit 14 is formed of a liquid crystal display, and under the control of the control unit 33, displays an image such as an anterior segment image of the subject's eye, test results, and the like. In the present embodiment, the display unit 14 is equipped with a touch panel function. It is possible to perform operations for Further, the display unit 14 uses the function of the touch panel to display a switching icon in each of the eye characteristics measurement mode (measurement mode by the eye characteristics measurement unit 40) and the intraocular pressure measurement mode (measurement mode by the intraocular pressure measurement unit 20). It is possible for the examiner to switch between the eye characteristics measurement mode and the intraocular pressure measurement mode by touching the switching icon. In addition, the operation for performing the measurement may be performed by providing a measurement switch and operating the measurement switch. Further, the operation for moving the apparatus main body 13 may be performed by providing a control lever or a movement operation switch and operating the control lever or the movement operation switch.

The chin support 15 and the forehead support 16 fix the face of the subject (patient), that is, the position of the subject's eye with respect to the device main body 13 during measurement. The chin rest part 15 is a place where the subject rests his/her chin, and the forehead support part 16 is a place where the subject rests the forehead. In the ophthalmologic apparatus 10, the display section 14, the chin support section 15, and the forehead support section 16 are provided on both sides of the device main body section 13. During normal use, the display section 14 can be viewed by the examiner. The chin support part 15 and the forehead support part 16 are on the subject's side. The display unit 14 is rotatably supported by the device main body 13, and the orientation of the display surface can be changed. ). The device main body 13 is moved by the drive mechanism 12 relative to the base 11 , that is, moved relative to the subject's eye (subject's face) fixed by the chin support 15 and the forehead support 16 . is possible.

The drive mechanism 12 can move the apparatus body 13 with respect to the base 11 in the vertical direction and the horizontal direction. The drive mechanism 12 can move in a vertical direction (Y-axis direction), a front-rear direction (Z-axis direction: left-right direction when viewing FIG. 1 from the front), and a left-right direction (X-axis direction: 1 ) and the direction perpendicular to the plane of the paper of FIG. 1). In the specification of the present application, when viewed from the subject whose face is supported by the chin support portion 15 and the forehead support portion 16, the horizontal direction is defined as the X direction, and the vertical direction (vertical direction) is defined as the Y direction. and the direction perpendicular to the Y direction (the depth direction: the direction of the optical axis O1 of the inspection optical system) is the Z direction.

The drive mechanism 12 is electrically connected to the controller 33 and driven under the control of the controller 33 . The control unit 33 constitutes an electrical control system in the ophthalmologic apparatus 10, and comprehensively controls each unit of the ophthalmologic apparatus 10 by a program stored in a built-in storage unit. Although not shown in FIG. 1 for ease of understanding, the ophthalmologic apparatus 10 is provided with a cover member that forms the overall outer shape. is covered by the cover member.

As shown in FIG. 1, the drive mechanism 12 includes three arms 121a, 122a, 121b, three arm drive units 121c, 122c, 123c, three shafts 121y, 122y, 123y, two shafts 121x, 122x. Arm 121a rotates about axis 121y. Arm 122a rotates about axis 122y. Arm 121b rotates about axis 123y and rotates about axis 121x. In the drive mechanism 12 shown in FIG. 1, the three shafts 121y, 122y, 123y extend vertically. The two axes 121x, 122x extend horizontally. A support portion 122b for supporting the device body portion 13 is provided at the tip of the arm 121b. The supporting portion 122b rotates about the shaft 122x while supporting the apparatus body portion 13. As shown in FIG. The device body 13 may be detachably attached to the support 122b. The arm drive units 121c, 122c, 123c rotate the arms 121a, 122a, 121b.

In addition, in the drive mechanism 12 of this embodiment, the number of arms is not limited to three, and may be two or more. Also, the number of axes extending in the vertical direction is not limited to three, and may be two or more. The number of horizontally extending axes is not limited to two, and may be three or more. That is, the drive mechanism 12 of this embodiment includes two or more first shafts extending in one of the horizontal and vertical directions and three or more second shafts extending in the other of the horizontal and vertical directions. and an axis. In the drive mechanism 12 shown in FIG. 1, the two shafts 121x and 122x correspond to an example of the "first shaft" of the invention. The three axes 121y, 122y, 123y correspond to an example of the "second axis" of the invention.

Next, a specific example of the drive mechanism of the present embodiment will be given, and the drive mechanism of the present embodiment will be described in more detail.
FIG. 2 is a schematic diagram illustrating a first specific example of the drive mechanism of this embodiment.

The drive mechanism 12A of the first embodiment corresponds in detail to the drive mechanism 12 described above with respect to FIG. The drive mechanism 12A of the first specific example includes three arms 121a, 122a, 121b, three arm drive units 121c, 122c, 123c, three shafts 121y, 122y, 123y, two shafts 121x, 122x, have The axes 121y, 122y, and 123y of this embodiment extend in the vertical direction and correspond to an example of the "second axis" of the invention. The axes 121x and 122x of this embodiment extend in the horizontal direction and correspond to an example of the "first axis" of the invention. Further, the drive mechanism 12A has a support portion 122b that supports the device body portion 13. As shown in FIG. The device body 13 may be detachably attached to the support 122b.

The first arm 121a is arranged to extend in the horizontal direction and can rotate around a shaft 121y extending in the vertical direction. The axis 121y is the central axis of the first shaft portion 121d. The first shaft portion 121d is fixed to the base portion 11 and protrudes upward from the upper surface of the base portion 11 . The first arm 121a is fitted to the first shaft portion 121d in a first pulley 121e integrally formed with the first arm 121a, and can rotate about the shaft 121y with respect to the first shaft portion 121d. can. A first driving belt 121f is stretched between the first arm driving portion 121c and the first pulley 121e. The first arm driving section 121 c has, for example, a motor and a speed reducer, and operates based on control signals transmitted from the control section 33 . As a result, the first arm 121a rotates about the shaft 121y by driving force transmitted from the first arm driving portion 121c through the first driving belt 121f and the first pulley 121e.

The second arm 122a is arranged to extend in the horizontal direction and can rotate about a shaft 122y extending in the vertical direction. The axis 122y is the central axis of the second shaft portion 122d. The second shaft portion 122d is formed integrally with the third pulley 123e and the fourth pulley 124e. The third pulley 123e, the second shaft portion 122d, and the fourth pulley 124e are arranged side by side in this order from bottom to top in the vertical direction. The second arm 122a is fitted on a second shaft portion 122d in a second pulley 122e integrally formed with the second arm 122a, and can rotate about an axis 122y with respect to the second shaft portion 122d. can. A second drive belt 122f is stretched between the second arm drive portion 122c and the second pulley 122e. The second arm driving section 122 c has, for example, a motor and a reduction gear, and operates based on control signals transmitted from the control section 33 . As a result, the second arm 122a rotates about the shaft 122y by driving force transmitted from the second arm driving portion 122c through the second driving belt 122f and the second pulley 122e. A first timing belt 121g is stretched between the first shaft portion 121d and the third pulley 123e. The diameter of the first shaft portion 121d is the same as the diameter of the third pulley 123e.

The third shaft portion 123d is arranged to extend in the vertical direction, and can rotate with respect to the second arm 122a around a shaft 123y extending in the vertical direction. The axis 123y is the central axis of the third shaft portion 123d. The third shaft portion 123d is provided at the end of the second arm 122a, and passes through the second arm 122a at the end opposite to the second shaft portion 122d. The third shaft portion 123d is formed integrally with the fifth pulley 125e. The third shaft portion 123d and the fifth pulley 125e are arranged side by side along the vertical direction. A second timing belt 122g is stretched between the fourth pulley 124e and the fifth pulley 125e. The diameter of the fourth pulley 124e is the same as the diameter of the fifth pulley 125e.

The third arm 121b can rotate around a horizontally extending axis 121x. The axis 121x is the central axis of the fourth shaft portion 124d. The fourth shaft portion 124d is formed integrally with the third shaft portion 123d and the fifth pulley 125e, and extends along a direction (horizontal direction) orthogonal to the shaft 123y. The third arm 121b is fitted to the fourth shaft portion 124d in a sixth pulley 126e integrally formed with the third arm 121b, and can rotate about the axis 121x with respect to the fourth shaft portion 124d. can. A third driving belt 123f is stretched between the third arm driving portion 123c and the sixth pulley 126e. The third arm driving section 123 c has, for example, a motor and a speed reducer, and operates based on control signals transmitted from the control section 33 . As a result, the third arm 121b rotates about the axis 121x by the driving force transmitted from the third arm driving portion 123c through the third driving belt 123f and the sixth pulley 126e.

The support portion 122b can rotate around a horizontally extending axis 122x. The axis 122x is the central axis of the fifth shaft portion 125d. The fifth shaft portion 125d is formed integrally with the support portion 122b and extends along the horizontal direction. The fifth shaft portion 125d is fitted in a bearing portion 127e integrally formed with the third arm 121b at the end opposite to the sixth pulley 126e. This allows the support portion 122b to rotate around the axis 122x with respect to the third arm 121b. A third timing belt 123g is stretched between the fourth shaft portion 124d and the fifth shaft portion 125d. The diameter of the fourth shaft portion 124d is the same as the diameter of the fifth shaft portion 125d.

Next, the operation of the drive mechanism 12A of this specific example will be described. First, it is assumed that the first arm 121a rotates about the axis 121y by the driving force transmitted from the first arm driving portion 121c through the first driving belt 121f and the first pulley 121e. In this case, since the first shaft portion 121d is fixed to the base portion 11, it does not rotate. On the other hand, the third pulley 123e rotates the first arm 121a, the first timing belt 121g is hung between the first shaft portion 121d and the third pulley 123e, and the first shaft portion 121d is the same as the diameter of the third pulley 123e, it rotates by the same angle relative to the first arm 121a in the direction opposite to that of the first arm 121a. Since the fourth pulley 124e is integrally formed with the third pulley 123e via the second shaft portion 122d, the fourth pulley 124e is positioned relative to the first arm 121a in the same manner as the third pulley 123e. rotate the same angle in the opposite direction. Further, since the second timing belt 122g is stretched between the fourth pulley 124e and the fifth pulley 125e, and the diameter of the fourth pulley 124e is the same as the diameter of the fifth pulley 125e, the fifth The third shaft portion 123d integrally formed with the pulley 125e rotates by the same angle relative to the first arm 121a in the direction opposite to the first arm 121a. Therefore, the third arm 121b and the support portion 122b, which relatively rotate together with the third shaft portion 123d in the rotation direction about the axis extending in the vertical direction, are rotated in the same manner as the third shaft portion 123d. It rotates by the same angle in the direction opposite to the first arm 121a relative to 121a. As a result, the postures of the third arm 121b and the support portion 122b do not change even if the first arm 121a rotates, and are always held in a fixed direction with respect to the rotation direction about the axis extending in the vertical direction.

Subsequently, it is assumed that the second arm 122a rotates about the axis 122y by the driving force transmitted from the second arm driving portion 122c through the second driving belt 122f and the second pulley 122e. In this case, the fourth pulley 124e does not rotate because the fourth pulley 124e is integrally formed with the third pulley 123e and the first arm 121a and the first pulley 121e do not rotate. That is, the fourth pulley 124e does not rotate relative to the first arm 121a. On the other hand, the fifth pulley 125e is controlled by the fact that the second arm 122a rotates, the second timing belt 122g is hung between the fourth pulley 124e and the fifth pulley 125e, and the diameter of the fourth pulley 124e. is the same as the diameter of the fifth pulley 125e, it rotates by the same angle in the opposite direction to the second arm 122a relative to the second arm 122a. Therefore, the third arm 121b and the support portion 122b, which rotate relatively together with the third shaft portion 123d with respect to the rotation direction about the axis extending in the vertical direction, rotates relative to the second arm 122a. It rotates by the same angle in the opposite direction as the arm 122a. As a result, the postures of the third arm 121b and the support portion 122b do not change even if the second arm 122a rotates, and are always held in a fixed direction with respect to the rotation direction about the axis extending in the vertical direction.

Subsequently, it is assumed that the third arm 121b rotates about the axis 121x due to the driving force transmitted from the third arm driving portion 123c through the third driving belt 123f and the sixth pulley 126e. In this case, the fourth shaft portion 124d does not rotate because it is integrally formed with the third shaft portion 123d. On the other hand, the fifth shaft portion 125d rotates the third arm 121b, the third timing belt 123g is hung between the fourth shaft portion 124d and the fifth shaft portion 125d, and the fourth shaft portion 125d rotates. Since the diameter of the portion 124d is the same as the diameter of the fifth shaft portion 125d, it rotates by the same angle relative to the third arm 121b in the direction opposite to the third arm 121b. Since the support portion 122b is integrally formed with the fifth shaft portion 125d, the support portion 122b can be rotated relative to the third arm 121b by the same angle in the direction opposite to the third arm 121b, similarly to the fifth shaft portion 125d. Rotate. As a result, the posture of the support portion 122b does not change even if the third arm 121b rotates, and is always held in a fixed direction with respect to the rotation direction about the axis extending in the horizontal direction.

As a result, even if the first arm 121a, the second arm 122a and the third arm 121b are rotated in a superimposed manner, the posture of the support portion 122b is always held in a fixed direction. Therefore, the driving mechanism 12A of this specific example can hold the posture of the apparatus main body 13 and align the optical axis O1 of the inspection optical system in the direction toward the eye to be inspected.

According to the ophthalmologic apparatus 10 according to the present embodiment, the drive mechanisms 12 and 12A do not function as slide mechanisms for sliding the apparatus main body 13 having the inspection optical system, but the first arm 121a is driven by the first arm. The second arm 122a is rotated by the second arm driving section 122c, the third arm 121b is rotated by the third arm driving section 123c, and the apparatus main body 13 is positioned at arbitrary coordinates. Further, the driving mechanisms 12 and 12A are configured to rotate vertically extending shafts 121y, 122y, and 123y (second shafts) and horizontally extending shafts 121x and 122x when positioning the apparatus main body 13 at arbitrary coordinates. Using (first axis) and , the posture of the apparatus main body 13 is maintained, and the optical axis O1 of the inspection optical system is aligned with the direction toward the eye to be inspected. As a result, it is possible to reduce the size of the ophthalmologic apparatus 10 while ensuring the precision and accuracy of the examination.

A first timing belt 121g and a second timing belt 122g are provided on the first arm portion 12a and the second arm portion 12b. That is, the first timing belt 121g is stretched between the first shaft portion 121d and the third pulley 123e. A second timing belt 122g is stretched between the fourth pulley 124e and the fifth pulley 125e. Furthermore, a third timing belt 123g is stretched between the fourth shaft portion 124d and the fifth shaft portion 125d. Therefore, even if an arm drive section for rotating all of the first arm 121a, the second arm 122a, the third arm 121b, and the support section 122b is not necessarily provided, the three arm drive sections 121c, 122c, and 123c are arranged to rotate the three arms 121a, 122c, and 123c. By rotating 122a and 121b, the posture of the supporting portion 122b that supports the device body portion 13 can be maintained, and the optical axis O1 of the inspection optical system can always be aligned in the direction toward the eye to be inspected. Therefore, the number of arm driving units can be reduced, and the size of the ophthalmologic apparatus 10 can be further reduced.

Further, when the device main body 13 is detachably provided with respect to the support portion 122b, for example, the first arm portion 12a and the second arm portion 12b can be separated by removing the device main body portion 13 from the support portion 122b. In the folded state, the drive mechanisms 12 and 12A can be stored in the hospital ward separately from the device main body 13. As a result, the size of the ophthalmologic apparatus 10 can be further reduced, and the space of the ophthalmologic apparatus 10 in the hospital ward can be reduced.

Further, when the device main body 13 is detachably provided with respect to the support portion 122b, the driving mechanisms 12 and 12A are detachably attached to another inspection device different from the device main body 13. FIG. That is, the driving mechanisms 12 and 12A include an ophthalmologic measuring device such as an eye refraction tester (refractometer, keratometer) and a tonometer, an optical coherence tomograph for obtaining cross-sectional images using OCT, and a fundus camera for photographing the fundus. It can be applied to an ophthalmic imaging apparatus such as As a result, the ophthalmologic apparatus 10 according to this embodiment can be applied to various ophthalmologic measurement apparatuses and ophthalmologic imaging apparatuses.

In the drive mechanism 12A of the first specific example, the timing belts 121g, 122g, and 123g are provided, but the timing belts 121g, 122g, and 123g may not necessarily be provided. For example, it is possible to reduce the number of timing belts by installing more arm drives with motors, speed reducers, and the like. Next, a specific example of a drive mechanism in which more arm drive units are installed and the number of timing belts is reduced as compared with the drive mechanism 12A of this specific example will be described with reference to the drawings.

FIG. 3 is a schematic diagram illustrating a second specific example of the drive mechanism of this embodiment.
The drive mechanism 12B of the second specific example includes two arms 121a and 122a, five arm drive units 121c, 122c, 123c, 124c and 125c, three shafts 121y, 122y and 123y, and two shafts 121x and 122x. and have The axes 121y, 122y, and 123y of this embodiment extend in the vertical direction and correspond to an example of the "second axis" of the invention. The axes 121x and 122x of this embodiment extend in the horizontal direction and correspond to an example of the "first axis" of the invention. Further, the drive mechanism 12B has a support portion 122b that supports the apparatus body portion 13. As shown in FIG. The device body 13 may be detachably attached to the support 122b. The arm driving units 121 c, 122 c, 123 c, 124 c, and 125 c operate based on control signals transmitted from the control unit 33 .

The first arm 121a has one end connected to the first shaft portion 121d and the other end connected to the second shaft portion 122d. The first shaft portion 121d is fixed to the base portion 11 and protrudes upward from the upper surface of the base portion 11 . The first arm 121a can rotate around a vertically extending shaft 121y. The axis 121y is the central axis of the first shaft portion 121d. The first arm 121a can rotate about an axis 121y relative to the first shaft portion 121d by driving force transmitted from a first arm driving portion 121c having, for example, a motor and a speed reducer.

The second shaft portion 122d has one end connected to the first arm 121a and the other end connected to the second arm 122a. The second shaft portion 122d can rotate around a vertically extending shaft 122y. The second shaft portion 122d is driven relative to the first arm 121a about the shaft 122y by a driving force transmitted from a second arm driving portion 122c having, for example, a motor and a speed reducer. can rotate.

The second arm 122a has one end connected to the second shaft portion 122d and the other end connected to the third shaft portion 123d. The second arm 122a can rotate around a horizontally extending axis 121x. The second arm 122a can rotate around the axis 121x relative to the second shaft portion 122d by a driving force transmitted from a third arm driving portion 123c having a motor and a speed reducer, for example.

The third shaft portion 123d has one end connected to the second arm 122a and the other end connected to the support portion 122b. The third shaft portion 123d can rotate around a horizontally extending shaft 122x. The third shaft portion 123d can rotate about the shaft 122x relative to the second arm 122a by a driving force transmitted from a fourth arm driving portion 124c having a motor and a speed reducer, for example.

One end of the support portion 122b is connected to the third shaft portion 123d, and the other end is connected to the apparatus body portion 13. As shown in FIG. The support portion 122b can rotate around a vertically extending shaft 123y. The support portion 122b can rotate about the shaft 123y relatively to the third shaft portion 123d by driving force transmitted from a fifth arm drive portion 125c having a motor and a speed reducer, for example.

Next, the operation of the drive mechanism 12B of this specific example will be described. Assume that the control unit 33 controls the first arm drive unit 121c to rotate the first arm 121a about the axis 121y. In this case, the control section 33 controls the second arm drive section 122c to rotate the second shaft section 122d by the same angle relative to the first arm 121a in the direction opposite to the first arm 121a. As a result, the postures of the second arm 122a and the third shaft portion 123d do not change even when the first arm 121a rotates, and are always held in a fixed direction with respect to the direction of rotation about the axis extending in the vertical direction. be.

Subsequently, it is assumed that the control unit 33 controls the second arm drive unit 122c to rotate the second shaft portion 122d about the shaft 122y. In this case, the control section 33 controls the fifth arm drive section 125c to rotate the support section 122b by the same angle relative to the second shaft section 122d in the direction opposite to the second shaft section 122d. As a result, the posture of the support portion 122b does not change even if the second shaft portion 122d rotates, and is always held in a fixed direction with respect to the direction of rotation about the axis extending in the vertical direction.

Subsequently, it is assumed that the control unit 33 controls the third arm driving unit 123c to rotate the second arm 122a about the axis 121x. In this case, the control section 33 controls the fourth arm drive section 124c to rotate the third shaft section 123d by the same angle relative to the second arm 122a in the direction opposite to the second arm 122a. As a result, the posture of the third shaft portion 123d does not change even if the second arm 122a rotates, and is always held in a fixed direction with respect to the rotation direction about the axis extending in the horizontal direction.

As a result, even if the first arm 121a and the second arm 122a are rotated in a superimposed manner, the posture of the support portion 122b is always held in a fixed direction. Therefore, the drive mechanism 12B of this specific example can hold the posture of the apparatus main body 13 and align the optical axis O1 of the inspection optical system in the direction toward the eye to be inspected.

FIG. 4 is a schematic diagram illustrating a third specific example of the drive mechanism of this embodiment.
The drive mechanism 12C of the third specific example includes two arms 121a and 122a, five arm drive units 121c, 122c, 123c, 124c and 125c, two shafts 125y and 126y, and three shafts 125x, 126x and 127x. and have The axes 125y and 126y of this embodiment extend in the vertical direction and correspond to an example of the "first axis" of the invention. The axes 125x, 126x, and 127x in this embodiment extend in the horizontal direction and correspond to an example of the "second axis" of the invention. Further, the drive mechanism 12C has a support portion 122b that supports the apparatus body portion 13. As shown in FIG. The device body 13 may be detachably attached to the support 122b. The arm driving units 121 c, 122 c, 123 c, 124 c, and 125 c operate based on control signals transmitted from the control unit 33 .

The first arm 121a has one end connected to the second shaft portion 122d and the other end connected to the second arm 122a. The first arm 121a can rotate around a horizontally extending axis 125x. The first arm 121a can rotate about an axis 125x relative to the second shaft portion 122d by a driving force transmitted from a first arm driving portion 121c having, for example, a motor and a speed reducer.

The second shaft portion 122d has one end connected to the first shaft portion 121d and the other end connected to the first arm 121a. The second shaft portion 122d can rotate around a vertically extending shaft 125y. The first shaft portion 121d is fixed to the base portion 11 and protrudes upward from the upper surface of the base portion 11 . The second shaft portion 122d can rotate about an axis 125y relative to the base portion 11 by a driving force transmitted from a fourth arm driving portion 124c having a motor and a speed reducer, for example.

The second arm 122a has one end connected to the first arm 121a and the other end connected to the third shaft portion 123d. The second arm 122a can rotate around a horizontally extending axis 126x. The second arm 122a can rotate about the axis 126x relatively to the first arm 121a by a driving force transmitted from a second arm driving section 122c having a motor, a speed reducer, and the like.

The third shaft portion 123d has one end connected to the second arm 122a and the other end connected to the support portion 122b. The third shaft portion 123d can rotate around a horizontally extending shaft 127x. The third shaft portion 123d can rotate about an axis 127x relative to the second arm 122a by a driving force transmitted from a third arm driving portion 123c having a motor and a speed reducer, for example.

One end of the support portion 122b is connected to the third shaft portion 123d, and the other end is connected to the apparatus body portion 13. As shown in FIG. The support portion 122b can rotate around a vertically extending shaft 126y. The support portion 122b can rotate about an axis 126y relative to the third shaft portion 123d by a driving force transmitted from a fifth arm drive portion 125c having a motor and a speed reducer, for example.

Next, the operation of the driving mechanism 12C of this specific example will be described. Assume that the control unit 33 controls the first arm drive unit 121c to rotate the first arm 121a about the axis 125x. In this case, the control section 33 controls the second arm driving section 122c to rotate the second arm 122a relatively to the first arm 121a by the same angle in the direction opposite to the first arm 121a. As a result, the postures of the second arm 122a and the third shaft portion 123d do not change even when the first arm 121a rotates, and are always held in a fixed direction with respect to the rotation direction about the axis extending in the horizontal direction. be.

Subsequently, it is assumed that the control unit 33 controls the second arm driving unit 122c to rotate the second arm 122a about the axis 126x. In this case, the control section 33 controls the third arm drive section 123c to rotate the third shaft section 123d by the same angle relative to the second arm 122a in the direction opposite to the second arm 122a. As a result, the posture of the third shaft portion 123d does not change even if the second arm 122a rotates, and is always held in a fixed direction with respect to the rotation direction about the axis extending in the horizontal direction.

Subsequently, it is assumed that the controller 33 controls the fourth arm drive section 124c to rotate the second shaft section 122d about the shaft 125y. In this case, the control section 33 controls the fifth arm drive section 125c to rotate the support section 122b by the same angle relative to the second shaft section 122d in the direction opposite to the second shaft section 122d. As a result, the posture of the support portion 122b does not change even if the second shaft portion 122d rotates, and is always held in a fixed direction with respect to the direction of rotation about the axis extending in the vertical direction.

As a result, even if the first arm 121a and the second arm 122a are rotated in a superimposed manner, the posture of the support portion 122b is always held in a fixed direction. Therefore, the drive mechanism 12C of this specific example can hold the posture of the apparatus main body 13 and align the optical axis O1 of the inspection optical system in the direction toward the eye to be inspected.

In addition, in the drive mechanism 12C of the third specific example, an example in which the five arm drive units 121c, 122c, 123c, 124c, and 125c are provided was given, but the number of arm drive units is limited to five. isn't it. For example, similar to the drive mechanism 12A of the first embodiment described above with reference to FIG. 2, it is possible to reduce the number of arm drives by providing a timing belt.

Like the drive mechanism 12A of the first embodiment described above with respect to FIG. 2, the drive mechanism 12B of the second embodiment described above with respect to FIG. Axes 121x and 122x in 12A and 12B, and axes 125y and 126y in drive mechanism 12C) may extend horizontally or vertically. In addition, three or more second axes (axes 121y, 122y, 123y in drive mechanisms 12A and 12B, and axes 125x, 126x, and 127x in drive mechanism 12C) may extend in the horizontal direction or in the vertical direction. may

Next, a second embodiment of the invention will be described.
If the components of the ophthalmologic apparatus 10A according to the second embodiment are the same as those of the ophthalmologic apparatus 10 according to the first embodiment described above with reference to FIGS. However, the differences will be mainly described below.

FIG. 5 is a side view showing an ophthalmologic apparatus according to a second embodiment of the invention.
The ophthalmologic apparatus 10A according to this embodiment further includes a stand 50 as compared with the ophthalmologic apparatus 10 according to the first embodiment. That is, the ophthalmologic apparatus 10A according to this embodiment includes a base portion 11, a drive mechanism 12, an apparatus body portion 13, a display portion 14, a chin rest portion 15, a forehead portion 16, and a stand 50. Prepare.

In the ophthalmologic apparatus 10A according to this embodiment, the apparatus main body 13 is provided on the stand 50 via the drive mechanism 12 and the base section 11 . The stand 50 has a housing portion 502 , a column 503 , legs 504 and wheels 505 , and supports the apparatus body portion 13 via the base portion 11 and the drive mechanism 12 . The post 503 extends vertically, is connected to the base portion 11 at its upper end, and is connected to the leg portion 504 at its lower end. The wheel 505 is rotatably provided at the tip of the leg 504 and is oriented freely. Therefore, the stand 50 can freely move in all directions while supporting the apparatus body 13 via the base 11 and the drive mechanism 12 . The storage portion 502 is fixed to the leg portion 504 and stores relatively heavy objects such as the control portion 33 and the power supply 36 . That is, the storage unit 502 stores relatively heavy objects such as the control unit 33 and the power source 36 in the lower portion of the ophthalmologic apparatus 10A.

According to the ophthalmologic apparatus 10A according to the present embodiment, the ophthalmologic apparatus 10A can be easily and freely moved within the hospital ward. Further, the stand 50 has a storage section 502 for storing relatively heavy objects such as the control section 33 and the power source 36 at the bottom of the ophthalmologic apparatus 10A. That is, the stand 50 accommodates heavy items such as the control unit 33 and the power supply 36 in the storage unit 502 below the ophthalmologic apparatus 10A. As a result, the ophthalmologic apparatus 10A can be moved more easily and stably within the hospital ward.

The drive mechanism provided in the ophthalmologic apparatus 10A according to this embodiment may be the drive mechanism 12A of the first specific example described above with reference to FIG. 2, or the drive mechanism 12B of the second specific example described above with reference to FIG. Alternatively, it may be the drive mechanism 12C of the third specific example described above with reference to FIG.

According to an ophthalmologic apparatus according to another embodiment, the apparatus body 13 may be supported by a suspension arm (not shown) via the drive mechanism 12 and the base 11 . In this case, one end of the suspension arm is attached to a fixed part, such as the ceiling or wall in the hospital ward. Alternatively, one end of the hanging arm may be a fixed part of a given device installed within the hospital ward. The other end of the suspension arm is attached to the base portion 11 .

According to this, the apparatus main body 13 is not installed on the floor of the hospital ward via the drive mechanism 12 and the base part 11, but is suspended by the suspension arm via the drive mechanism 12 and the base part 11, for example, in the hospital ward. It is suspended from a fixed part such as the ceiling or wall of a hospital, or from a fixed part of a device installed in a hospital ward. As a result, it is possible to further save space for the ophthalmologic apparatus in the hospital ward. Thus, the fixed portion to which one end of the suspension arm is attached is any fixed portion in the hospital ward where the suspension arm can support the device main body 13 via the base portion 11 and the drive mechanism 12. may

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the claims. Some of the configurations of the above embodiments may be omitted, or may be arbitrarily combined in a manner different from the above.

10, 10A: ophthalmic device 11: base portion 12, 12A, 12B: drive mechanism 12a: first arm portion 12b: second arm portion 13: apparatus body portion 14: display portion 15: chin rest Part 16: Forehead part 20: Intraocular pressure measurement part 33: Control part 36: Power supply 40: Eye characteristic measurement part 50: Stand 60: Suspension arm 61: Base part 65: Ceiling 121a: first arm 121b: third arm 121c: first arm drive section 121d: first shaft section 121e: first pulley 121f: first drive belt 121g: first timing belt 121x: shaft 121y: shaft 122a: second arm 122b: support portion 122c: second arm drive portion 122d: second shaft portion 122e: second pulley 122f: second drive belt 122g: second timing belt 122x: shaft 122y: shaft 123c: third arm drive section 123d: third shaft section 123e: third pulley 123f: third drive belt 123g: third timing belt 123y: shaft 124c: Fourth arm drive section 124d: Fourth shaft section 124e: Fourth pulley 125c: Fifth arm drive section 125d: Fifth shaft section 125e: Fifth pulley 125x: Shaft 125y: Shaft 126e: Sixth pulley 126x: Shaft 126y: Shaft 127e: Bearing portion 127x: Shaft 502: Storage portion 503: Post 504: Leg portion 505: Wheel O1: Optical axis

Claims (7)

An ophthalmic device for optically acquiring data of an eye to be examined,
an apparatus body having an inspection optical system for optically inspecting the eye to be inspected based on light reflected by the eye;
a driving mechanism that supports the apparatus main body and positions the apparatus main body at arbitrary coordinates in a coordinate system having a vertical direction, a front-rear direction, and a left-right direction perpendicular to the vertical direction and the front-rear direction;
with
The drive mechanism is
two or more arms rotating about axes extending horizontally or vertically;
three or more arm drive units for rotating the two or more arms;
two or more first axes extending in one of the horizontal direction and the vertical direction;
three or more second axes extending in the other of the horizontal direction and the vertical direction;
a timing belt that is provided on the arm and rotates according to the rotation of the arm to hold the posture of the device main body;
has
The timing belt is
A first shaft portion fitted with a first arm out of the two or more arms and a second shaft portion fitted with a second arm out of the two or more arms are integrated at one end a first timing belt entrained between a pulley formed in the
A pulley integrally formed at the other end of the second shaft, and a third shaft integrally formed at the end opposite to the second shaft, the third shaft passing through the second arm. a second timing belt entrained between said pulley;
hung between a fourth shaft portion fitted with a third arm of the two or more arms and a fifth shaft portion integrally formed with a support portion that supports the apparatus main body a third timing belt;
and aligning the optical axis of the inspection optical system with the direction toward the eye to be inspected while maintaining the posture. the first arm rotates about the second axis with respect to the first shaft,
the second arm rotates about the second shaft with respect to the second shaft,
the third arm rotates about the first axis with respect to the fourth shaft,
The arm drive section
a first arm driving section that rotates the first arm;
a second arm driving section that rotates the second arm;
a third arm driving section that rotates the third arm;
The ophthalmic device according to claim 1, characterized by comprising : The diameter of the first shaft portion is the same as the diameter of the pulley integrally formed at the second shaft portion and the one end,
The diameter of the pulley integrally formed with the second shaft portion and the other end portion is the same as the diameter of the pulley integrally formed with the third shaft portion,
The ophthalmologic apparatus according to claim 1 or 2, wherein the diameter of the fourth shaft portion is the same as the diameter of the fifth shaft portion. The ophthalmologic apparatus according to any one of claims 1 to 3, further comprising a stand having wheels that support the apparatus main body via the drive mechanism and are provided in a freely directional manner. 5. The ophthalmologic apparatus according to claim 4 , wherein the stand has a storage section for storing heavy objects including a power source. 6. The driving mechanism according to any one of claims 1 to 5 , wherein the driving mechanism is provided detachably with respect to the apparatus main body, and is detachably attached to another inspection apparatus different from the apparatus main body. ophthalmic device according to . 3. The apparatus according to any one of claims 1 to 3, further comprising a suspension arm attached to a fixed portion in the hospital ward at one end and supporting the device main body via the drive mechanism at the other end. An ophthalmic device according to any one of the preceding claims.

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