Suture needles; veterinary apparatus and instruments;
surgical apparatus and instruments for medical use; surgical
apparatus and instruments for dental use; physiotherapy
apparatus; furniture especially made for medical purposes;
surgical implants comprised of artificial materials;
artificial limbs; orthopedic articles; sutures.
2.
OPTICAL STRUCTURE FOR SURGICAL MICROSCOPES AND SURGICAL MICROSCOPE
An optical structure is provided including a turning unit and a binocular unit which are sequentially arranged along an optical path direction. The turning unit includes a right-angle roof prism. The binocular unit includes a prism/lens group, a first right-angle prism, a second right-angle prism, and an ocular. The prism/lens group includes a small objective lens, or the first right-angle prism and the second right-angle prism are replaced by a rhombic prism. The optical structure is designed as “inverting-inverting”, and the right-angle roof prism shortens an optical length of an internal optical path of the turning unit by about half, which is more conducive to the reduction of the light vignetting of an optical path of observation. Two internal reflections prevent a mirroring phenomenon, and turn an image by 180 degrees, so that an inverting prism can be omitted from the binocular unit.
(1) Suture needles; veterinary apparatus and instruments; surgical apparatus and instruments for medical use; surgical apparatus and instruments for dental use; physiotherapy apparatus; furniture especially made for medical purposes; surgical implants comprised of artificial materials; artificial limbs; orthopedic articles; sutures.
4.
IMAGE NAVIGATION METHOD AND SYSTEM FOR SURGICAL MICROSCOPE
Disclosed are an image navigation method and a system for a surgical microscope. The method comprises fixing a surgical object and a marker, and performing radiation imaging on them to obtain a three-dimensional structure digital image; by means of an image positioning marker, establishing a coordinate system to obtain a relative position between a target affected part and the marker; planning an instrument entry point and a path guide point on the image to generate a navigation path, and transmitting data to a media signal processing apparatus; placing the target affected part and the marker in a microscope field of view, and transmitting a field of view image to the media signal processing apparatus; the media signal processing apparatus identifying the marker to generate a matched three-dimensional space; and, according to the three-dimensional space, superposing a path image corresponding to coordinates and the field of view image to realize real-time navigation. The system comprises the microscope, the media signal processing apparatus, and the marker. The microscope comprises a microscope body and an image enhancement apparatus. The present application can accurately position the surgical instrument entry point and the entry path, and guide a doctor or a related operator to complete a dental diagnosis and treatment surgery, thus improving the surgical precision.
The present invention discloses an image enhancement system and an implementation method therefor. The system comprises a media signal processing apparatus, an image enhancement apparatus, a microscope body, and a binocular tube. The image enhancement apparatus comprises a housing, and a display device and a superposition lens group that are disposed in the housing, the display device is connected to the media signal processing apparatus, the superposition lens group is disposed on a main optical path of the microscope body, the binocular tube is disposed on the microscope body, the display device is configured to receive information data sent by the media signal processing apparatus and convert the received information data into an optical image, the optical image sent by the display device is superposed to the main optical path of the microscope body through the superposition lens group to form a superposed image, and the superposed image can be observed through the binocular tube. In this application, some images with additional information may be superposed into an observation field of view of a microscope, so that an operator can observe required information more intuitively, and compare, superpose, and fuse the information with a real object under the microscope better, thereby improving operation accuracy and precision.
The present invention relates to an optical structure of a surgical microscope and the surgical microscope. The optical structure comprises a turning unit and a binocular unit sequentially arranged in an optical path direction. The turning unit comprises a right-angle roof prism. The binocular unit comprises a prism/lens group, a first right-angle prism, a second right-angle prism, and an ocular lens. The prism/lens group comprises a small objective lens, or the first right-angle prism and the second right-angle prism are replaced with rhombic prisms. The optical structure of the present invention is designed to be "inverted image-inverted image", and the right-angle roof prism enables the optical distance of an optical path in the turning unit to be shortened by about half, which is more beneficial to reducing the light vignetting of an observation optical path, the mirror image phenomenon is avoided by two internal reflections, and the image rotates by 180 degrees, so that an inverted image prism in the binocular unit can be removed, and the structure of the optical lens group in the system is effectively simplified.
The present invention relates to an extension structure and an optical system. The extension structure comprises a first connecting base and a second connecting base. One end of the first connecting base forms a first connecting end, and one end of the second connecting base forms a second connecting end. The first connecting base and the second connecting base can be connected in a relatively rotatable manner, and the rotation axis lines of the first connecting base and the second connecting base are parallel. The optical system is arranged in the extension structure. A surgical microscope, comprising a lens body, the extension structure connected to the lens body, a rotating structure connected to the extension structure, and an eyepiece connected to the rotating structure. The extension structure and the rotating structure enables the eyepiece to move up and down relative to the lens body, the adjustment region is large.
A surgical microscope diagnosis and treatment system comprises a microscopic observation module, a storage module, and an enhanced information image injection module. The microscopic observation module is configured to observe a target object to be observed. The storage module stores a radiatively imaged three-dimensional structure digital image of the target object. The enhanced information image injection module is used for projecting the radiatively imaged three-dimensional structure digital image into an observation field of the microscopic observation module in a manner of an optical image, so as to be superimposed on an optical image under a microscope in the observation field of the microscopic observation module to form a superimposed optical image. According to the surgical microscope diagnosis and treatment system, an additional information image can be superimposed on the optical image under the microscope in a projection manner, so that an operator can conveniently and flexibly observe the target object during a surgery, and can also quickly view a variety of data information related to the surgery.
A61B 34/20 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/20 - Surgical microscopes characterised by non-optical aspects
An adjustable binocular tube, comprising a connecting base assembly, an interpupillary distance adjusting base (2), an eyepiece tube holder (3), and an eyepiece tube assembly. The interpupillary distance adjusting base (2) is connected to the connecting base assembly. The eyepiece tube holder (3) is connected to the interpupillary distance adjusting base (2). The eyepiece tube assembly is connected to the eyepiece tube holder (3). An optical hole (100) is formed in the connecting base assembly. The eyepiece tube assembly is connected to the eyepiece tube holder (3) by means of an adjusting mechanism. The adjusting mechanism comprises an adjusting ring (60). The adjusting ring (60) is connected to the eyepiece tube holder (3), and the adjusting ring (60) can move relative to the eyepiece tube holder (3) in the axial direction of the adjusting ring (60). The eyepiece tube assembly is connected to the adjusting ring (60). The connecting base assembly is provided with an optical lens (4) capable of cutting into or cutting out the optical hole. By means of the adjustment of the binocular tube, a doctor can use a surgical microscope in a comfortable posture, so that the doctor can focus on high-precision work all the time. The use requirements of different doctors are met, and working in an ergonomic posture facilitates reduction of fatigue during use of a surgical microscope.
An optical adapter device and a surgical microscope with the optical adapter device. The optical adapter device comprises a main body housing (20) and an optical lens assembly. Two ends of the main body housing (20) are used for connecting the surgical microscope and a digital camera apparatus (3). The main body housing (20) comprises a first housing section (200), a second housing section (201) and a third housing section (202), wherein the first housing section (200) at least partially extends in the direction of a first axis (a); one end of the second housing section (201) is connected to the other end of the first housing section (200), and the second housing section (201) extends at least in the direction of a second axis (b); and one end of the third housing section (202) is connected to the other end of the second housing section (201), the third housing section (202) extends at least in the direction of a third axis (c), and the first axis (a) and the third axis (c) respectively intersect with the second axis (b). The optical adapter device is adapted to light splitters with different structures, thereby being suitable for a wider range of microscope bodies; the optical adapter device is suitable for various digital apparatuses, observes and records images more clearly, and flexibly operates, thereby improving the diagnosis efficiency; and the optical adapter device has the advantages of modularized production and assembly, a simple structure, good expansibility and a low cost.
A microsurgery auxiliary device provided in the present invention, comprises a lens body (1) and a naked eye 3D display (2), the lens body (1) being internally provided with an imaging unit (10); the imaging unit (10) comprises a large objective lens group (11), a zoom lens group (12), a first tube objective lens (13) and a photosensitive element (14); the large objective lens group (11), the zoom lens group (12), the first tube objective lens (13) and the photosensitive element (14) are sequentially located in the same observation optical path; the large objective lens group (11) comprises at least one positive lens group (111) and at least one negative lens group (112), the positive lens group (111) and the negative lens group (112) are arranged in the same optical axis, and the spacing between the positive lens group (111) and the negative lens group (112) is adjustable; and the naked eye 3D display (2) is connected to the photosensitive element (14), the distance between the naked eye 3D display (2) and an observer (5) is 400-1200 mm, and the viewing angle range of the naked eye 3D display (2) is not less than 120 degrees. The observer can directly perform surgical operations by observing the naked eye 3D display (2), the overall structure of the device is simple, and the system delay is small.
A surgical microscope having assistant's device, comprises a support (1), a microscope body (2), a first naked eye 3D display (3) and a second naked eye 3D display (4). The microscope body (2) is mounted on the support (1), a photosensitive element (24) is arranged in the microscope body (2), the first naked eye 3D display (3) and the second naked eye 3D display (4) are respectively connected to the photosensitive element (24), display directions of the first naked eye 3D display (3) and the second naked eye 3D display (4) are opposite, and directions of an image displayed by the first naked eye 3D display (3) and an image displayed by the second naked eye 3D display (4) are different by 180 degrees. The surgical microscope having assistant's device of the present invention enables an operator (9) and an assistant (10) of different body sizes to maintain reasonable ergonomic postures, see true images of their respective perspectives, observe the state of each other at any time and communicate in facial language, Meanwhile, only one set of stereo optical imaging system is needed, and two persons can observe at the same time by simply assigning and flipping video signals.
An optical adapter for connecting between a beam splitter of a surgical microscope or an ophthalmic slit lamp microscope and a digital camera equipment including mobile phones, tablet computers, cameras, video cameras with image capturing function is provided. The optical adapter includes a lens group located on an optical path and an optical image rotating lens group for adjusting a direction of an optical image on a photosensitive unit of the digital camera equipment. The optical image rotating lens group is configured to be either independently rotatable around optical axis or be set fixedly. Embodiments of the present invention provide a system and method for real-time adjustment of the direction of an optical image on the photosensitive unit of a digital camera equipment, where regardless of the position of the digital camera a satisfactory direction of the optical image can be obtained with a simple user friendly and convenient structure.
Disclosed in the present invention are an enhanced image system and an implementation method therefor. The system comprises a media signal processing device, an enhanced image device, a microscope body, and a binocular barrel. The enhanced image device comprises a housing, and a display device and a superposition lens group that are disposed in the housing; the display device is connected to the media signal processing device; the superposition lens group is arranged on a main optical path of the microscope body; the binocular barrel is provided on the microscope body; the display device is configured to receive information data sent by the media signal processing device, and convert the received information data into an optical image; the optical image sent from the display device is superimposed into the main optical path of the microscope body by means of the superposition lens group to form a superimposed image, and the superimposed image can be observed by means of the binocular barrel. According to the present application, some images having additional information can be superimposed in an observation field of view of a microscope, such that an operator can be facilitated to intuitively observe required information and better compare, superimpose and fuse same with a real object under the microscope, and thus the surgical accuracy and precision are improved.
The present invention relates to an extension structure and an optical system. The extension structure comprises a first connecting base and a second connecting base. One end of the first connecting base forms a first connecting end, and one end of the second connecting base forms a second connecting end. The first connecting base and the second connecting base can be connected in a relatively rotatable manner, and the rotation axis line of the first connecting base and the second connecting base are parallel. The optical system is arranged in the extension structure. A surgical microscope, comprising a lens body, the extension structure connected to the lens body, a rotating structure connected to the extension structure, and an eyepiece connected to the rotating structure. The extension structure and the rotating structure enables the eyepiece to move up and down relative to the lens body. According to the present invention, the adjustment region is large, ensuring that a clinician obtains an ergonomic clinical sitting posture, effectively alleviating and preventing muscle strain of the waist, neck and shoulder, and making the clinician not suffer from cervical spondylosis and lumbar spondylosis; more diversified adjustments are provided to meet the requirements of the dentist's own sitting posture; the structure is simple, and the installation is convenient.
A dental microscopic diagnosis and treatment system, comprising a microscopic observation module, a three-dimensional (3D) imaging module, and an AR display module. The microscopic observation module is used for observing a target object to be observed; the 3D imaging module is used for acquiring a microscopic optical image in an observation field of the microscopic observation module in real time and converting the microscopic optical image into a 3D digital image; the AR display module is worn on the head of an operator, and is used for receiving the 3D digital image outputted by the 3D imaging module, and converting the 3D digital image into an optical image to be displayed in the field of view of the operator. By using the dental microscopic diagnosis and treatment system, during surgery, the operator can conveniently and flexibly observe the target object, and can also rapidly view data information related to the surgery.
A61B 34/20 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
17.
SURGICAL MICROSCOPE DIAGNOSIS AND TREATMENT SYSTEM
A surgical microscope diagnosis and treatment system, comprising a microscopic observation module, a storage module, and an enhanced information image injection module. The microscopic observation module is used for observing a target object to be observed. The storage module stores a radiatively imaged three-dimensional structure digital image of the target object. The enhanced information image injection module is used for projecting the radiatively imaged three-dimensional structure digital image into an observation field of the microscopic observation module in a manner of an optical image, so as to be superimposed on an optical image under a microscope in the observation field of the microscopic observation module to form a superimposed optical image. According to the surgical microscope diagnosis and treatment system, an additional information image can be superimposed on the optical image under the microscope in a projection manner, such that an operator can conveniently and flexibly observe the target object during a surgery, and can also quickly view multiple data information related to the surgery.
A61B 34/20 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A microsurgery auxiliary device, comprising a mirror body (1) and a naked eye 3D display (2), the mirror body (1) being internally provided with an imaging unit (10); the imaging unit (10) comprises a large objective lens group (11), zoom lens groups (12), first tube objective lenses (13) and photosensitive elements (14); the large objective lens group (11), the zoom lens groups (12), the first tube objective lenses (13) and the photosensitive elements (14) are sequentially located in the same observation optical path; the large objective lens group (11) comprises at least one positive lens group (111) and at least one negative lens group (112), the positive lens group (111) and the negative lens group (112) are on the same optical axis, and the spacing between the positive lens group (111) and the negative lens group (112) can be adjusted; the naked eye 3D display (2) is connected to the photosensitive elements (14), the spacing between the naked eye 3D display (2) and an observer (5) is 400-1200 mm, and the viewing angle range of the naked eye 3D display (2) is not less than 120 degrees. Observers can directly perform surgical operations by observing the naked eye 3D display (2), the overall structure of the device is simple, and system delay is small.
An operating microscope for two surgeons, comprising a support (1), a microscope body (2), a first autostereoscopic 3D display (3) and a second autostereoscopic 3D display (4). The microscope body (2) is mounted on the support (1), a photosensitive element (24) is arranged in the microscope body (2), the first autostereoscopic 3D display (3) and the second autostereoscopic 3D display (4) are respectively connected to the photosensitive element (24), the display directions of the first autostereoscopic 3D display (3) and the second autostereoscopic 3D display (4) are opposite, and the directions of an image displayed by the first autostereoscopic 3D display (3) and an image displayed by the second autostereoscopic 3D display (4) are different by 180 degrees. The operating microscope for two surgeons enables an operator (9) and an assistant (10) of different body sizes to maintain reasonable ergonomic postures, see true images of their respective perspectives, observe the state of each other at any time and communicate in facial language. Meanwhile, only one set of stereo optical imaging system is needed, and two persons can observe at the same time by simply assigning and flipping video signals.
An optical adapter for connecting between a beam splitter of a surgical microscope or an ophthalmic slit lamp microscope and a digital camera equipment including mobile phones, tablet computers, cameras, video cameras with image capturing function is provided. The optical adapter includes a lens group located on an optical path and an optical image rotating lens group for adjusting a direction of an optical image on a photosensitive unit of the digital camera equipment. The optical image rotating lens group is configured to be either independently rotatable around optical axis or be set fixedly. Embodiments of the present invention provide a system and method for real-time adjustment of the direction of an optical image on the photosensitive unit of a digital camera equipment, where regardless of the position of the digital camera a satisfactory direction of the optical image can be obtained with a simple user friendly and convenient structure.
A medical otoscope, comprises an otoscope body and an observation apparatus connected to one end of the otoscope body, the other end of the otoscope body having a tapered portion capable of inserting into an ear, the observation apparatus comprising at least one optical lens group arranged along a same optical axis, the optical lens group comprising at least one optical lens capable of moving along the optical axis, central axis of the observation apparatus being coaxial with or deviating from central axis of the otoscope body. The focal length of the medical otoscope can be adjusted by means of arranging two groups of optical lenses movable relative to one another, and the medical otoscope has a simple structure and is convenient for operation.
A61B 1/227 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for ears, i.e. otoscopes
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/06 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor with illuminating arrangements
22.
OPTICAL ADAPTER FOR MICROSCOPE AND METHOD FOR ADJUSTING DIRECTION OF OPTICAL IMAGE
An optical adapter for connecting between a beam splitter (A) of a surgical microscope (D) or an ophthalmic slit lamp microscope (D) and a digital camera equipment (C1, C2, C3) including mobile phones, tablet computers, cameras, video cameras with image capturing function is provided. The optical adapter includes a lens group located on an optical path and an optical image rotating lens group for adjusting a direction of an optical image on a photosensitive unit of the digital camera equipment (C1, C2, C3). The optical image rotating lens group is configured to be either independently rotatable around optical axis or be set fixedly. A system and method for real-time adjustment of the direction of an optical image on the photosensitive unit of a digital camera equipment (C1, C2, C3) are provided, where regardless of the position of the digital camera (C1, C2, C3) a satisfactory direction of the optical image can be obtained with a simple user friendly and convenient
Disclosed is a wireless diagnosis system power supply, which is not connected with an external power supply, and comprises a shell (1), a battery pack (2) provided within the shell, an electrical module (3) connected with the battery pack to adjust the voltage and the current, and a cable handle (4) connected with the electrical module. The power supply provides independent power supply directly without connecting with an external power network, and achieves a reasonable arrangement, a compact structure, a small size, a long service life, power saving, safety and reliability, convenience in clinical use, and high utilization rate of clinic space; and the whole system is portable and easy to install.
H01H 9/00 - Details of switching devices, not covered by groups
H01H 50/18 - Movable parts of magnetic circuits, e.g. armature
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61N 1/20 - Applying electric currents by contact electrodes continuous direct currents
A61B 1/227 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for ears, i.e. otoscopes
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A medical examination otoscope, comprising an otoscope body (1) and an observation apparatus (2) connected to one end of the otoscope (1), the other end of the otoscope body (1) being provided with a tapered part (10) for inserting into the ear, the observation apparatus (2) comprising at least one optical lens group arranged on the same optical axis, the optical lens group comprising at least one optical lens (23) capable of moving on the optical axis, the central axis of the observation apparatus (2) being coaxial to or deviating from the central axis of the otoscope body (1). The focal length of the present medical examination otoscope can be adjusted by means of arranging two optical lenses (22, 23) able to move relative to one another; the structure is simple, and operation is convenient.
A61B 1/227 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for ears, i.e. otoscopes
Disclosed is an observation mask of a dermatoscope (3), comprising a mask body (1) connected to the front end of the dermatoscope (3), and an observation lens (2) arranged on the mask body (1), wherein the mask body (1) and the observation lens (2) are of the same non-metallic material, the observation lens (2) and the mask body (1) are provided integrally, and the observation lens (2) is transparent. The observation mask has a simple structure, is easy to install, can be used in a disposable way, is safe and healthy, and also protects a lens surface of the dermatoscope (3).
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
Disclosed is a zoom objective lens (16) of an operating microscope (10), wherein the zoom objective lens (16) and a lens cone of the operating microscope (10) are provided along a same axis (24). The zoom objective lens (16) comprises a positive lens group (11) and a negative lens group (12) provided along a same axis (24). The positive lens group (11) is provided on an objective lens holder (14), and the negative lens group (12) is provided on a negative lens group holder (15) and directly faces the object under observation (G). The zoom objective lens (16) is changeably connected to a body (20) of the operating microscope through the objective lens holder (14) or a coupling holder, the negative lens group holder (15) is capable of moving in the optical axis (24) direction relative to the objective lens holder (14), and the position of the objective lens holder (14) relative to an illumination system (21) and an observation system (22) remains unchanged. The focus length of this zoom objective lens (16) can be continuously adjusted, and the zoom objective lens can be replaced as a whole. The structures of the illumination system (21) and the observation system (22) of the operating microscope (10) can remain unchanged, and in the zooming process, the positions of the zoom objective lens (16) relative to the illumination system (21) and the observation system (22) remain unchanged. In the zoom objective lens (16), a guide mechanism (17) for leading the negative lens group holder (15) to move in the optical axis (24) direction, and a drive mechanism (18) for driving the negative lens group holder (15) to move in the optical axis (24) direction are provided, thereby causing that the zoom objective lens (16) have a compact structure and is convenient to adjust.
G02B 7/10 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
A61B 90/20 - Surgical microscopes characterised by non-optical aspects
G02B 15/16 - Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
A wireless diagnosis system power supply. The power supply is not connected with an external power supply, and contains a casing (1), a battery pack (2) placed in the casing, an electrical module (3) connected with the battery pack to adjust the voltage and the current, and a cable handle (4) connected with the electrical module. The power supply provides independent power supply directly without connecting with an external power network, and the power supply allows the reasonable arrangement, compact structure, small size, long service life, power saving, safety and reliability, convenience in use for clinical, and high utilization rate of clinic space; and the whole system is portable and easy to install.
Disclosed is an observation cover of a dermatoscope (3), comprising a cover body (1) connected to the front end of the dermatoscope (3), an observation lens (2) arranged on the cover body (1), wherein the cover body (1) and the observation lens (2) are of the same non-metallic material, the observation lens (2) and the cover body (1) are an all-in-one device, and the observation lens (2) is transparent. The observation cover has a simple structure, is easy to install, can be used in a disposable way, is safe and healthy, and also protects a lens surface of the dermatoscope (3).
Disclosed is a zoom objective lens (16) of a surgical microscope (10), wherein the zoom objective lens (16) and the surgical microscope (10) are provided along the same optical axis (24). The zoom objective lens (16) comprises a positive lens group (11) and a negative lens group (12) provided along the same optical axis (24). The positive lens group (11) is provided on an objective lens holder (14), and the negative lens group (12) is provided on a negative lens group holder (15) and directly faces the object under observation (G). The zoom objective lens (16) is replaceably connected to a lens body (20) of the surgical microscope through the objective lens holder (14) or a coupling holder, the negative lens group holder (15) is capable of moving along the optical axis (24) relative to the objective lens holder (14), and the position of the objective lens holder (14) relative to an illumination system (21) and an observation system (22) remains unchanged. The focus of this zoom objective lens (16) can be continuously adjusted, and the zoom objective lens can be replaced as a whole. The structure of the illumination system (21) and the observation system (22) of the surgical microscope (10) can remain unchanged, and in the zoom process, the position of the zoom objective lens (16) relative to the illumination system (21) and the observation system (22) remains unchanged. In the zoom objective lens (16), a guide mechanism (17) for leading the negative lens group (15) to move along the optical axis (24), and a drive mechanism (18) for driving the negative lens group (15) to move along the optical axis (24) are provided, thereby making the zoom objective lens (16) have a compact structure and convenient to adjust.
G02B 7/10 - Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Disclosed is a retinoscope having an illuminating and imaging system, comprising a light source (1), a projecting mirror (4) and a semi-permeable/semi-reflective mirror (5) successively provided along the optical axis of an illuminating beam of light. The optical axes of the projecting mirror (4) and the semi-permeable/semi-reflective mirror (5) are collinear. A light reflecting plane of the semi-permeable/semi-reflective mirror (5) and an optical axis of illumination (OO1) are at 45°. A condensing lens array (2) and a retinoscopy diaphragm (3) are successively provided along the optical axis of illumination (OO1) between the light source (1) and the projecting mirror (4). The optical axis of the condensing lens array (2) and the optical axis of illumination (OO1) overlap, and a plane of the retinoscopy diaphragm (3) is perpendicular to the optical axis of illumination (OO1).
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
Medical apparatus and instruments; surgical apparatus and
instruments; testing apparatus for medical purposes;
diagnostic apparatus for medical purposes; lamps for medical
purposes; dental apparatus; medical ultrasound apparatus;
lasers for medical purposes; galvanic therapeutic
appliances; sphygmomanometers.
Medical apparatus and instruments for use in diagnosis and surgery; surgical apparatus and instruments; [ blood testing apparatus for medical purposes; ]diagnostic apparatus for medical purposes for the diagnosis of the ears, nose, and throat; [ UV lamps for medical purposes; ] dental apparatus, namely, dental microscopes; [ medical ultrasound apparatus; lasers for medical purposes; galvanic therapeutic appliances for muscle stimulation for physical therapy purposes; ] sphygmomanometers
