JPWO2021150887A5

JPWO2021150887A5 - surgical microscope system

Info

Publication number: JPWO2021150887A5
Application number: JP2022545412A
Authority: JP
Publication date: 2024-01-30

Claims

a surgical microscope;
a stereoscopic inverter lens system positionable externally relative to the tympanic membrane and adjustably mounted to the surgical microscope;
a distal lens spaced apart from the stereoscopic inverter lens system and attachable within a portion of the tympanic membrane to facilitate visualization through the tympanic membrane to middle ear sites, the distal lens being incorporated by the distal lens; to the stereoscopic inverter lens system such that an image of the middle ear region, which is displayed, can be transferred to the stereoscopic inverter lens system external to the tympanic membrane for presentation on the surgical microscope. With a distal lens that is positionable
A surgical microscope system equipped with.

The distal lens is
a prism at the proximal end of the distal lens;
and a wide field lens at a distal end of the distal lens.

3. The system of claim 2, wherein at least a portion of the stereoscope inverter lens system is mounted within a speculum.

4. The system of claim 3, wherein the distal lens further comprises a zoom lens or objective lens disposed between the prism and the wide field lens.

5. The system of claim 4, wherein the distal lens comprises two or more stabilizing arms extending radially outwardly from a body of the distal lens.

4. The system of claim 3, wherein the distal lens defines a waist portion having a smaller outer diameter than immediately adjacent proximal and distal portions of the distal lens.

The distal lens includes an air gap of 1-2 mm between the wide-field lens and the objective lens, the objective lens being positioned between the wide-field lens and the prism, and the wide-field lens, the 4. The system of claim 3, wherein the objective lens and the prism are all mechanically coupled together.

8. The system of claim 7, wherein the wide field lens and the objective lens each have an outer diameter of about 1 mm to 3 mm.

8. The system of claim 7, wherein the prism has a proximal surface angled from about 30 degrees to about 60 degrees with respect to a central longitudinal axis of the distal lens.

4. The system of claim 3 , wherein the portion of the stereoscopic inverter lens system mounted within the speculum is positionally adjustable with respect to the speculum.

4. The system of claim 3 , wherein a cavity is defined within the speculum and laterally of the portion of the stereoscopic inverter lens system mounted within the speculum.

4. The system of claim 3 , further comprising a light pipe coupled to the distal lens.

The distal lens includes an elongated tubular member and a plurality of lenses coupled to the tubular member for defining an optical path through the tubular member, the tubular member including a plurality of sections, and the plurality of lenses coupled to the tubular member to define an optical path through the tubular member. 4. The system of claim 3 , wherein the sections allow angulation between the sections.

4. The distal lens includes an elongate tubular member surrounding an optical fiber configured to relay images from a distal end of the distal lens to a proximal end of the distal lens. system.

The distal lens is
a first prism at the proximal end of the distal lens;
a second prism at the distal end of the distal lens;
a zoom lens or an objective lens disposed between the first prism and the second prism;
2. The system of claim 1, comprising:

The distal lens is
a condenser lens at the proximal end of the distal lens and coupled to the housing;
a second lens at the distal end of the distal lens and coupled to the housing;
Equipped with
2. The system of claim 1, wherein the housing defines an interior space between the condenser lens and the second lens.

17. The system of claim 16, wherein the housing includes a radially extending flange or arm.