WO2024020988A1 - 可调节双目镜筒及手术显微镜 - Google Patents

可调节双目镜筒及手术显微镜 Download PDF

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Publication number
WO2024020988A1
WO2024020988A1 PCT/CN2022/108854 CN2022108854W WO2024020988A1 WO 2024020988 A1 WO2024020988 A1 WO 2024020988A1 CN 2022108854 W CN2022108854 W CN 2022108854W WO 2024020988 A1 WO2024020988 A1 WO 2024020988A1
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WO
WIPO (PCT)
Prior art keywords
eyepiece
adjustment
tube
seat
ring
Prior art date
Application number
PCT/CN2022/108854
Other languages
English (en)
French (fr)
Inventor
王吉龙
徐久麒
管胜
邱涛
周伟忠
Original Assignee
苏州速迈医学科技股份有限公司
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Publication date
Application filed by 苏州速迈医学科技股份有限公司 filed Critical 苏州速迈医学科技股份有限公司
Priority to PCT/CN2022/108854 priority Critical patent/WO2024020988A1/zh
Publication of WO2024020988A1 publication Critical patent/WO2024020988A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/20—Surgical microscopes characterised by non-optical aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
    • G02B21/20—Binocular arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00

Definitions

  • the invention belongs to the technical field of medical devices, and specifically relates to an adjustable binocular lens barrel and a surgical microscope.
  • the main mirror part of the surgical microscope generally includes: lens body, binocular tube, eyepiece, large zoom objective lens, handle, etc.
  • the lens of the surgical microscope should be positioned in a horizontal position.
  • the doctor passes the binocular tube Make observations.
  • the basic principle of the binocular tube is to use a prism system to divide the image formed by the objective lens into two left and right parts, and then use two eyepieces to observe respectively.
  • the difference in magnification between the two lens tubes is not more than 2 to 2.5%.
  • the image formed by the lens tube should be consistent in direction, with a relative tilt of no more than 20" to 30".
  • the divergence angle of the two optical axes in the horizontal plane should be ⁇ 40", and the convergence angle of the two optical axes in the horizontal plane should be ⁇ 20".
  • the two lens tubes The image brightness and field of view size should be consistent.
  • Muscle pain and tension caused by prolonged use of a surgical microscope is a common phenomenon for doctors in various departments at work. 78% of neurosurgeons reported pain after one day of surgery, and 83% of them suffered from musculoskeletal pain.
  • the combination of long surgeries and intense mental concentration places a heavy strain on the surgeon's body. For every inch the head moves forward, the muscles of the head, neck, and upper back must compensate to support the extra 10 pounds. Compromising positions can easily cause pain that can radiate into the arm or area, leading to headaches, chronic pain, and exhaustion.
  • the length of the eyepieces on the binocular tubes of existing surgical microscopes is short and unadjustable, making it difficult to adapt to different surgeons' surgical positions, increasing muscle strain on the waist, neck, and shoulders, and not conforming to ergonomic design, thus affecting surgical efficiency.
  • An object of the present invention is to provide an adjustable binocular tube.
  • An adjustable binocular tube including a connecting seat component, an interpupillary distance adjusting seat, an eyepiece tube seat and an eyepiece tube assembly.
  • the interpupillary distance adjusting seat is connected to the connecting seat component, and the eyepiece tube seat Connected to the interpupillary distance adjustment seat, the eyepiece tube assembly is connected to the eyepiece tube seat, and the connecting seat assembly is provided with an optical hole,
  • the eyepiece tube assembly is connected to the eyepiece tube base through an adjustment mechanism.
  • the adjustment mechanism includes an adjustment ring.
  • the adjustment ring is connected to the eyepiece tube base, and the adjustment ring can Moves relative to the eyepiece tube seat along its axial direction, and the eyepiece tube assembly is connected to the adjustment ring; the connection seat assembly is provided with an optical lens that can cut into or out of the optical hole. .
  • the binocular tube has a first use state and a second use state.
  • the adjustment ring moves in a direction away from the eyepiece tube seat to the first use state. set position, and the optical lens cuts into the aperture;
  • the adjustment ring moves toward the second set position in a direction close to the eyepiece tube seat, and the The optical lens has the optical hole cut out, which means that the binocular tube can achieve two levels of adjustment;
  • the binocular tube has a third use state and a fourth use state.
  • the optical lens cuts out the optical hole, and the adjustment ring faces away from the eyepiece tube.
  • the direction of the seat moves to the first setting position; in the fourth use state, the optical lens cuts into the light hole, and the adjustment ring moves toward the second setting position in the direction close to the eyepiece tube seat. Set location.
  • one end of the adjustment ring is inserted into the interior of the eyepiece tube seat from one end thereof, and the adjustment ring can move out of the eyepiece tube seat or retract into the eyepiece tube seat.
  • the eyepiece tube assembly is connected to the other end of the adjustment ring.
  • the eyepiece tube assembly is inserted into the other end of the adjustment ring, and a sleeve is provided between the eyepiece barrel assembly and the adjustment ring, and the sleeve is preferably Copper sleeve to facilitate the connection of eyepiece tube components, such as plug-in and pull-out connections.
  • the adjustment mechanism further includes a first limiting ring, the first limiting ring is connected to one end of the eyepiece tube seat, and when in the first set position, the The adjustment ring moves out of the eyepiece tube seat until one end of the adjustment ring offsets the first limiting ring.
  • the first limiting ring can limit the adjustment ring and the The above-mentioned disengagement between the eyepiece tube holders can, on the other hand, provide a prompt for the adjustment ring to move to the first setting position, thereby preventing the adjustment range from being exceeded.
  • the adjustment mechanism further includes a second limiting ring, and the second limiting ring is fixedly sleeved on the other end of the adjusting ring.
  • the adjustment ring moves and retracts the eyepiece tube seat until the second limiting ring offsets the first limiting ring.
  • the second limiting ring can give the The adjustment ring is prompted to move to the second set position.
  • the adjustment ring can be moved by operating the second limiting ring.
  • the adjustment ring and the eyepiece tube seat are connected through threads.
  • an external thread is provided on the outer circumference of one end of the adjustment ring
  • an internal thread is provided on the inner circumference of the eyepiece tube seat. Thread, by rotating the adjustment ring, the relative positions of the two can be adjusted.
  • one of the adjustment ring and the eyepiece tube holder is provided with a slide groove, and the other is provided with a slide block.
  • the slide groove is arranged along the axial direction of the adjustment ring.
  • the slide block is located in the slide groove.
  • the slide block is provided on the adjustment ring, and the slide block is provided on the eyepiece tube seat.
  • the optical lens is arranged on the connection base assembly through a switching mechanism
  • the switching mechanism includes an adjustment block
  • the adjustment block is movably connected to the connection base assembly, so
  • the adjustment block is provided with a mounting hole and an escape hole, and the optical lens is arranged on the mounting hole.
  • the switching mechanism further includes an elastic piece, one end of the elastic piece is fixed, and the other end of the elastic piece forms a bending portion; the adjustment block is provided with a first positioning groove and a third positioning groove. Two positioning grooves.
  • the optical lens is cut into the optical hole, the bent part of the elastic piece is inserted into the first positioning groove of the adjusting block; the optical lens is cut out of the
  • the bent part of the elastic piece is inserted into the second positioning groove of the adjustment block.
  • the adjustment block is movably connected to the connection base assembly.
  • the switching mechanism further includes an operating member, the operating member is connected to the connecting seat assembly and cooperates with the adjusting block to control the movement of the adjusting block; the operating member It is connected with the adjusting block through threads.
  • the switching mechanism further includes a moving guide assembly
  • the moving guide assembly includes a guide base and a guide block
  • the guide base is connected to the connecting base assembly
  • the guide block is connected to On the guide base and at least one side of the adjustment block, a guide channel is formed between the guide base and the guide block, and the guide channel moves along the adjustment block.
  • the adjustment block extends in the direction, and the adjustment block is located in the guide channel.
  • the movement guide assembly can ensure the stability of the movement of the adjustment block.
  • the adjustment block can move in the up and down direction relative to the connecting seat assembly, and the mounting holes and escape holes are provided up and down.
  • the optical lens is a single lens with negative refractive power or a single lens with positive refractive power.
  • the binocular tube further includes an optical lens group
  • the optical lens group includes a first right-angle prism, a first lens group, an isosceles right-angle prism, a second right-angle prism, and a first right-angle prism, a first lens group, and a first right-angle prism, which are distributed sequentially along the optical path direction.
  • Prism, Porro prism, second lens group and third lens group, the first lens group, second lens group and third lens group meet the following parameters:
  • the focal length f G2 of the first lens group satisfies 100mm ⁇ f G2 ⁇ 300mm.
  • the first lens group includes a single lens with positive refractive power and a double cemented lens set with negative refractive power.
  • the double cemented lens set satisfies : R 2 is the radius of curvature of the gluing surface, is the effective aperture of the bonding surface;
  • the focal length f G3 of the second lens group satisfies -1 ⁇ f G3 /f G2 ⁇ -0.2.
  • the second lens group includes a doublet lens group with negative refractive power.
  • the doublet lens group satisfies: R 3 is the radius of curvature of the gluing surface, is the effective aperture of the bonding surface;
  • the focal length f G4 of the third lens group satisfies 1 ⁇ f G2 /f G4 ⁇ 10, and the third lens group includes a doublet lens group with positive optical power.
  • the first right-angle prism, the first lens group, the isosceles right-angle prism, and the second right-angle prism are arranged in the connecting seat assembly; the Porro prism is arranged in the interpupillary distance adjustment seat. Inside, the second lens group and the third lens group are arranged in the eyepiece tube holder.
  • the connecting seat assembly includes a lower connecting seat and an upper connecting seat, the lower connecting seat and the upper connecting seat are rotatably connected, and the optical lens is arranged on the lower connecting seat.
  • the interpupillary distance adjustment seat is connected to the upper connecting seat.
  • the eyepiece tube assembly includes an eyepiece tube, an eyepiece adjustment tube, a diopter ring, a diopter adjustment ring and an eyepiece diaphragm, the eyepiece tube is connected to the adjustment ring, and the The eyepiece adjustment tube is connected to the eyepiece tube, the diopter ring is connected to the eyepiece adjustment tube through the diopter adjustment ring, and the eyepiece aperture is connected to the eyepiece tube.
  • Another object of the present invention is to provide a surgical microscope with the above-mentioned adjustable binocular tube.
  • the present invention has the following advantages compared with the prior art:
  • the present invention can provide doctors with a comfortable posture when using the surgical microscope, so that doctors can always focus on their high-precision work; meet the needs of different doctors, work in an ergonomic posture, and help Reduce fatigue when using a surgical microscope.
  • Figure 1 is a three-dimensional schematic diagram of the binocular tube in this embodiment
  • Figure 2 is a schematic side view of the binocular tube in this embodiment
  • Figure 3 is a schematic cross-sectional view of an implementation of the adjustment mechanism in this embodiment (in the first setting position);
  • Figure 4 is a schematic cross-sectional view of an implementation of the adjustment mechanism in this embodiment (in the second setting position);
  • Figure 5 is a schematic bottom view of an implementation of the adjustment mechanism in this embodiment
  • Figure 6 is a schematic cross-sectional view of another embodiment of the adjustment mechanism in this embodiment (in the first setting position);
  • Figure 7 is a schematic cross-sectional view of another embodiment of the adjustment mechanism in this embodiment (in the second setting position);
  • Figure 8 is a schematic diagram of the extended distance of the binocular tube in the first use state in this embodiment.
  • Figure 9 is a schematic diagram of the extended distance of the binocular tube in the second use state in this embodiment.
  • Figure 10 is a schematic diagram of a binocular tube in the prior art
  • Figure 11 is a schematic diagram of the optical lens cutting in in this embodiment.
  • Figure 12 is a schematic diagram of the optical lens cut out in this embodiment.
  • Figure 13 is a schematic diagram of the optical lens assembly with the binocular tube in the first use state in this embodiment
  • Figure 14 is a schematic diagram of the optical lens assembly with the binocular tube in the second use state in this embodiment
  • Figure 15 is a schematic diagram of the radius and thickness of the optical lens group parameters in this embodiment.
  • Figure 16 is a schematic diagram of the binocular tube in the first use state in this embodiment.
  • Figure 17 is a schematic diagram of the binocular tube in the second use state in this embodiment.
  • Adjustment block 700. Installation hole; 701. Avoidance hole; 702. Installation block; 703. First positioning slot; 704. Second positioning slot; 71. Elastic piece; 710. Bending part; 72. Operating part ;73. Guide seat; 74. Guide block;
  • First right-angle prism 81. First lens group; 82. Isosceles right-angle prism; 83. Second right-angle prism; 84. Porro prism; 85. Second lens group; 86. Third lens group.
  • an adjustable binocular tube is adapted to a surgical microscope and includes a connecting seat assembly, an interpupillary distance adjustment seat 2, an eyepiece tube seat 3, an eyepiece tube assembly and an optical lens 4.
  • the connecting seat assembly is used to connect with the lens body of the surgical microscope. It includes a lower connecting seat 10 and an upper connecting seat 11 .
  • the lower connecting seat 10 and the upper connecting seat 11 are rotatably connected to each other.
  • the end surface of the lower connecting seat 10 is the connection end, which is connected to the lens body of the surgical microscope, and the end surface of the lower connecting seat 10 is provided with a light hole 100 to receive light from the lens body of the surgical microscope, and the optical lens 4 is connected to the lower connecting seat. 10 cooperates with the optical hole 100; the interpupillary distance adjustment seat 2 is fixedly connected to the upper connecting seat 11.
  • the eyepiece tube seat 3 is fixedly connected to the interpupillary distance adjustment seat 2, and the eyepiece tube assembly is connected to the eyepiece tube seat 3.
  • the eyepiece tube assembly includes an eyepiece tube 50, an eyepiece adjustment tube 51, a diopter ring 52, a diopter adjustment ring 53, and an eyepiece diaphragm 54.
  • the eyepiece adjustment tube 51 is fixedly connected to the eyepiece tube 50, and the diopter ring 52 passes through the diopter adjustment ring.
  • 53 is connected to the eyepiece adjustment barrel 51, and the eyepiece diaphragm 54 is threadedly connected to the eyepiece barrel 50.
  • the eyepiece tube assembly has not been modified and will not be described in detail here.
  • the eyepiece tube assembly is connected to the eyepiece tube base 3 through an adjustment mechanism;
  • the optical lens 4 is arranged on the end surface of the lower connection base 10 through a switching mechanism.
  • the binocular lens tube has two usage states in one embodiment: the first usage state and the second usage state, realizing two length adjustments of the binocular lens tube. , as shown in Figures 16 and 17.
  • the adjustment mechanism and switching mechanism will be described in detail below.
  • the adjustment mechanism includes an adjustment ring 60, a first limiting ring 61 and a second limiting ring 62.
  • the adjustment ring 60 is connected to the eyepiece tube seat 3, and the adjustment ring 60 can move relative to the eyepiece tube seat 3 along its axial direction
  • the eyepiece tube 50 of the eyepiece tube assembly is connected to the adjustment ring 60.
  • one end of the adjustment ring 60 is inserted into the interior from one end of the eyepiece tube seat 3, and the adjustment ring 60 can move out of the eyepiece tube seat 3 or retract into the eyepiece tube seat 3, and the eyepiece tube 50 can be inserted and pulled out Insert the other end of the adjustment ring 60.
  • a sleeve body 63 is provided between the eyepiece tube 50 and the adjustment ring 60 .
  • the sleeve body 63 is preferably a copper sleeve to facilitate plug-and-pull connection of the eyepiece tube 50 to the adjustment ring 60 .
  • the first limiting ring 61 is fixedly connected to one end of the eyepiece tube holder 3
  • the second limiting ring 62 is fixedly sleeved on the other end of the adjusting ring.
  • the adjusting ring 60 can be moved by operating the second limiting ring 62 .
  • the adjustment ring 60 moves in a direction away from the eyepiece tube base 3 to the first setting position.
  • the first setting position is when the adjustment ring 60 moves out of the eyepiece tube base 3 to the adjustment position.
  • the position when one end of the ring 60 abuts the first limiting ring 61; when the binocular tube is in the second use state, the adjustment ring 60 moves toward the second setting position in a direction close to the eyepiece tube base 3, and the second setting position is The set position is such that the adjustment ring 60 moves and retracts into the eyepiece tube base 3 until the second limiting ring 62 offsets the first limiting ring 61 .
  • the length of the adjustment ring 60 is, for example, 20mm.
  • the binocular tube is in the first use state.
  • the binocular tube can be extended by 23mm compared with the existing structure.
  • the binocular tube is in the second use state.
  • the binocular tube can be extended by 43mm compared to the existing structure.
  • the extended length of the binocular lens tube can be adjusted according to the length of the adjustment ring 60 .
  • the relative movement of the adjustment ring 60 and the eyepiece tube base 3 provides the following two implementation methods:
  • the adjustment ring 60 and the eyepiece tube seat 3 are connected through threads. Specifically: the outer circumference of one end of the adjustment ring 60 is provided with external threads, and the inner circumference of the eyepiece tube seat 3 is Internal threads are provided, and the relative positions of the two can be adjusted by rotating the adjustment ring 60 .
  • one of the adjustment ring 60 and the eyepiece tube base 3 is provided with a chute 600, and the other is provided with a slider 30, and the chute 600 is
  • the adjustment ring 60 extends axially, and the slider 30 is located in the slide groove 600 .
  • the slider 600 is provided on the adjustment ring 60
  • the slider 30 is provided on the eyepiece tube base 3 .
  • the switching mechanism includes an adjustment block 70, an elastic piece 71, an operating member 72 and a moving guide assembly. in:
  • the adjusting block 70 is movably connected to the lower connecting seat 10. Specifically, the adjusting block 70 is connected to the lower connecting seat 10 in a manner that it can move up and down.
  • the adjusting block 70 is provided with a mounting hole 700 and an escape hole 701. The mounting hole 700 and the escape hole 701 are provided. Arranged up and down, a mounting block 702 is provided at the mounting hole 700, and the optical lens 4 is covered on the mounting hole 700 through the mounting block 702.
  • the mounting hole 700 When the binocular tube is in the first use state, the mounting hole 700 is coaxial with the optical hole 100, and the optical lens 4 on the mounting hole 700 cuts into the optical hole 100; as shown in Figure 12: When the binoculars When the barrel is in the second use state, the relief hole 701 is coaxial with the light hole 100, there is no optical lens 4 on the relief hole 701, and the light hole 100 is cut out of the optical lens 4.
  • the optical lens 4 is a single lens with negative refractive power.
  • the adjustment block 70 is provided with a first positioning groove 703 and a second positioning groove 704.
  • the elastic piece 71 The bending portion 710 snaps into the first positioning groove 703 of the adjustment block 70; when the optical lens 4 cuts out the optical hole 100, the bending portion 710 of the elastic piece 71 snaps into the second positioning slot 704 of the adjustment block 70, and the elastic piece 71 passes through the elastic piece. 71 is clicked into the first positioning groove 703 and the second positioning groove 704 to determine whether the optical lens 4 is switched in place.
  • the operating part 72 is connected to the lower connecting seat 10 and cooperates with the adjusting block 70 to control the adjusting block 70 to move up and down.
  • the operating part 72 and the adjusting block 70 are connected through a thread, and the operating part 72 can rotate but not move relative to the lower connecting seat 10.
  • the block 70 is movable but not rotatable relative to the lower connecting seat 10 , so that the adjusting block 70 can be driven to move by rotating the operating member 72 .
  • the mobile guide assembly includes a guide base 73 and a guide block 74.
  • the guide base 73 is connected to the lower connection base 10.
  • the guide block 74 is connected to the guide base 73 and is located on both sides of the adjustment block 70. Between the guide base 73 and the guide block 74 A guide channel is formed, which extends along the moving direction of the adjustment block 70 . Both ends of the adjustment block 70 are located in the guide channel.
  • the binocular tube in this embodiment it has a third use state and a fourth use state.
  • the optical lens 4 cuts out the optical hole 100, and the adjustment ring 60 faces away from the The direction of the eyepiece tube seat 3 moves to the first setting position; in the fourth use state, the optical lens 4 cuts into the aperture 100 and the adjustment ring 60 moves toward the direction of the eyepiece tube seat 3 to the second setting position.
  • the optical lens 4 is a single lens with positive optical power.
  • the principles of the third use state and the fourth use state are similar to those of the first use state and the second use state, and will not be described in detail here.
  • the binocular tube also includes an optical lens group.
  • the optical lens group includes a first right-angle prism 80, a first lens group 81, an isosceles right-angle prism 82, and a second right-angle prism sequentially distributed along the optical path direction.
  • Porro prism 84, second lens group 85 and third lens group 86, first right angle prism 80, first lens group 81, isosceles right angle prism 82, second right angle prism 83 are arranged in the connecting seat assembly;
  • Porro prism 84 is arranged in the interpupillary distance adjustment seat 2, and the second lens group 85 and the third lens group 86 are arranged in the eyepiece tube seat 3.
  • the focal length f G2 of the first lens group 81 satisfies 100mm ⁇ f G2 ⁇ 300mm.
  • the first lens group 81 includes a single lens G2 with positive power and a doublet lens group G3 with negative power.
  • the doublet lens group G3 satisfies: R 2 is the radius of curvature of the gluing surface, is the effective aperture of the glued surface.
  • the focal length f G3 of the second lens group 85 satisfies -1 ⁇ f G3 /f G2 ⁇ -0.2.
  • the second lens group 85 includes a doublet lens group G4 with negative refractive power.
  • the doublet lens group G4 satisfies: R 3 is the radius of curvature of the gluing surface, is the effective aperture of the bonding surface;
  • the focal length f G4 of the third lens group 86 satisfies 1 ⁇ f G2 /f G4 ⁇ 10.
  • the third lens group 86 includes a double cemented lens group with positive power, but there are no requirements for the curvature radius of the cemented surface and the effective aperture of the cemented surface.
  • Radius r is the radius of curvature of the lens surface
  • Thickness d is the center thickness of the lens
  • Nd is the refractive index of d light (wavelength 589.3nm) in optical glass
  • Vd Since the same transparent medium has different refractive indexes for light of different wavelengths, and white light is composed of various colors of light of different wavelengths, the special phenomenon of dispersion will occur when transparent materials refract white light. Abbe number It is an index used to express the dispersion ability of transparent media.
  • the generally used reference base is central dispersion, which is the difference in the refractive index of cyan light and red light.
  • nd, nF and nC are the refractive indices of D light, F light and C light respectively.

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Abstract

一种可调节双目镜筒，包括连接座组件、瞳距调节座(2)、目镜筒座(3)以及目镜筒组件，瞳距调节座(2)连接在连接座组件上，目镜筒座(3)连接在瞳距调节座(2)上，目镜筒组件连接在目镜筒座(3)上，连接座组件上开设有光孔(100)，目镜筒组件通过调节机构连接在目镜筒座(3)上，调节机构包括调节环(60)，调节环(60)连接在目镜筒座(3)上，并且调节环(60)可沿其轴向相对目镜筒座(3)移动，目镜筒组件连接在调节环(60)上；连接座组件上设置有可切入或切出光孔的光学镜片(4)。通过双目镜筒的调节，可以在使用手术显微镜时为医生提供舒适的姿势，使医生能够始终专注于其高精度工作；满足不同医生的使用需求，以人体工程学的姿势工作，帮助减少使用手术显微镜时的疲惫。

Description

可调节双目镜筒及手术显微镜 技术领域
本发明属于医疗器械技术领域，具体涉及一种可调节双目镜筒及手术显微镜。
背景技术
目前，手术显微镜的应用越来越广泛，不仅应用在复杂的临床程序中，而且在许多修复牙科、牙髓学、牙周病、显微外科等治疗程序中也有应用。由于人体工程学的原因，手术显微镜的位置和尺寸应根据操作者的正确工作位置进行调整，以获得最佳的肌肉和视觉工作条件。
手术显微镜的主镜部分一般包括：镜身、双目镜筒、目镜、大变焦物镜、手柄等，在大多数手术中，手术显微镜的镜头应定位在水平位置，此时医生通过双目镜筒进行观察。双目镜筒的基本原理是用一套棱镜系统把物镜所成的像分成左右两个，再分别用两个目镜观察，两个镜筒的放大倍率之差不大于2～2.5％，两个镜筒所成的像在方向上应一致，相对倾斜不大于20"～30"，水平面内两光轴的发散角≤40"，水平面内两光轴的会聚角≤20"，两个镜筒的图像亮度及视场大小应一致。
长时间使用手术显微镜造成肌肉疼痛和紧张是各科室医生在工作时的常见现象，78％的神经外科医生在一天的手术后报告疼痛，其中83％患有肌肉骨骼疼痛。长时间手术加上精神高度集中给医师的身体带来沉重的负担，例如对于头向前移动的每一英寸，头，颈部和上背部的肌肉都必须补偿以支撑额外的10磅体重，这些妥协的体位很容易引起疼痛，并且会扩散到手臂或局部，从而导致头痛，慢性疼痛和精疲力竭。
现有手术显微镜双目镜筒上目镜的长度较短且不可调节，难以适应不同医师的手术体位，增加腰、颈、肩部的肌肉劳损，不符合人体工程学设计，从而影响手术效率。
发明内容
本发明的一个目的是提供一种可调节双目镜筒。
为达到上述目的，本发明采用的技术方案是：
一种可调节双目镜筒，包括连接座组件、瞳距调节座、目镜筒座以及目镜筒组件，所述的瞳距调节座连接在所述的连接座组件上，所述的目镜筒座连接在所述的瞳距调节座上，所述的目镜筒组件连接在所述的目镜筒座上，所述的连接座组件上开设有光孔，
所述的目镜筒组件通过调节机构连接在所述的目镜筒座上，所述的调节机构包括调节环，所述的调节环连接在所述的目镜筒座上，并且所述的调节环可沿其轴向相对所述的目镜筒座移动，所述的目镜筒组件连接在所述的调节环上；所述的连接座组件上设置有可切入或切出所述的光孔的光学镜片。
上述技术方案优选地，所述的双目镜筒具有第一使用状态、第二使用状态，处于第一使用状态下，所述的调节环朝远离所述的目镜筒座的方向移动至第一设定位置，且所述的光学镜片切入所述的光孔；处于第二使用状态下，所述的调节环朝靠近所述的目镜筒座的方向移动至第二设定位置，且所述的光学镜片切出所述的光孔，也就是说所述的双目镜筒可以实现两档调节；
所述的双目镜筒具有第三使用状态、第四使用状态，处于第三使用状态下，所述的光学镜片切出所述的光孔，所述的调节环朝远离所述的目镜筒座的方向移动至第一设定位置；处于第四使用状态下，所述的光学镜片切入所述的光孔，所述的调节环朝靠近所述的目镜筒座的方向移动至第二设定位置。
进一步优选地，所述的调节环的一端从所述的目镜筒座的一端插入至其内部，并且所述的调节环可移动伸出所述的目镜筒座或者缩入所述的目镜筒座内；所述的目镜筒组件连接在 所述的调节环的另一端。
更进一步优选地，所述的目镜筒组件插入至所述的调节环的另一端内，并且所述的目镜筒组件与所述的调节环之间设置有套体，所述的套体优选为铜套，便于目镜筒组件的连接，例如插拔连接等。
更进一步优选地，所述的调节机构还包括第一限位环，所述的第一限位环连接在所述的目镜筒座的一端，处于所述的第一设定位置时，所述的调节环移动伸出所述的目镜筒座至所述的调节环的一端与所述的第一限位环相抵，所述的第一限位环一方面可以限制所述的调节环与所述的目镜筒座之间的脱离，另一方面可以给予所述的调节环移动到所述的第一设定位置的提示，防止超出调节范围。
更进一步优选地，所述的调节机构还包括第二限位环，所述的第二限位环固定套设在所述的调节环的另一端，处于所述的第二设定位置时，所述的调节环移动缩入所述的目镜筒座至使所述的第二限位环与所述的第一限位环相抵，所述的第二限位环一方面可以给予所述的调节环移动到所述的第二设定位置的提示，另一方面可以通过操作所述的第二限位环移动所述的调节环。
上述技术方案优选地，所述的调节环与所述的目镜筒座之间通过螺纹连接，例如所述的调节环一端的外周设置外螺纹，所述的目镜筒座的内周面上设置内螺纹，通过转动所述的调节环实现两者相对位置的移动调节。
上述技术方案优选地，所述的调节环、目镜筒座两者中的一者上开设有滑槽，另一者上设置有滑块，所述的滑槽沿所述的调节环的轴向延伸，所述的滑块位于所述的滑槽内，例如所述的调节环上开设所述的滑槽，所述的目镜筒座上设置所述的滑块。
上述技术方案优选地，所述的光学镜片通过切换机构设置在所述的连接座组件上，所述的切换机构包括调节块，所述的调节块活动连接在所述的连接座组件上，所述的调节块上开设有安装孔、避位孔，所述的光学镜片设置在所述的安装孔上，所述的安装孔与所述的光孔同轴时，所述的光学镜片切入所述的光孔；所述的避位孔与所述的光孔同轴时，所述的光学镜片切出所述的光孔。
进一步优选地，所述的切换机构还包括弹性片，所述的弹性片的一端固定，所述的弹性片的另一端形成折弯部；所述的调节块上开设有第一定位槽、第二定位槽，所述的光学镜片切入所述的光孔时，所述的弹性片的折弯部卡入所述的调节块的第一定位槽内；所述的光学镜片切出所述的光孔时，所述的弹性片的折弯部卡入所述的调节块的第二定位槽内，通过所述的弹性片卡入所述的第一定位槽、第二定位槽可以判断所述的光学镜片是否切换到位。
更进一步优选地，所述的调节块可移动地连接在所述的连接座组件上。
更进一步优选地，所述的切换机构还包括操作件，所述的操作件连接在所述的连接座组件上并与所述的调节块配合控制所述的调节块移动；所述的操作件与所述的调节块之间通过螺纹连接。
更进一步优选地，所述的切换机构还包括移动导向组件，所述的移动导向组件包括导向座、导向块，所述的导向座连接在所述的连接座组件上，所述的导向块连接在所述的导向座上，且位于所述的调节块的至少一侧，所述的导向座与所述的导向块之间形成导向通道，所述的导向通道沿所述的调节块的移动方向延伸，所述的调节块位于所述的导向通道内，通过所述的移动导向组件可以确保所述的调节块移动的稳定性。
更进一步优选地，所述的调节块可相对所述的连接座组件在上下方向上移动，所述的安装孔、避位孔上下设置。
上述技术方案优选地，所述的光学镜片为负光焦度的单透镜或者正光焦度的单透镜。
上述技术方案优选地，所述的双目镜筒还包括光学镜组，所述的光学镜组包括沿光路方向依次分布的第一直角棱镜、第一透镜组、等腰直角棱镜、第二直角棱镜、普罗棱镜、第二透镜组以及第三透镜组，所述的第一透镜组、第二透镜组以及第三透镜组满足以下参数：
所述的第一透镜组焦距f G2满足100mm＜f G2＜300mm，所述的第一透镜组包括具有正光 焦度的单透镜、负光焦度的双胶合透镜组，该双胶合透镜组满足：
Figure PCTCN2022108854-appb-000001
R 2为胶合面曲率半径，
Figure PCTCN2022108854-appb-000002
为胶合面有效孔径；
所述的第二透镜组焦距f G3满足-1＜f G3/f G2＜-0.2，所述的第二透镜组包括具有负光焦度的双胶合透镜组，该双胶合透镜组满足：
Figure PCTCN2022108854-appb-000003
R 3为胶合面曲率半径，
Figure PCTCN2022108854-appb-000004
为胶合面有效孔径；
所述的第三透镜组焦距f G4满足1＜f G2/f G4＜10，所述第三透镜组包括具有正光焦度的双胶合透镜组。
进一步优选地，所述的第一直角棱镜、第一透镜组、等腰直角棱镜、第二直角棱镜设置在所述的连接座组件内；所述的普罗棱镜设置在所述的瞳距调节座内，所述的第二透镜组、第三透镜组设置在所述的目镜筒座内。
上述技术方案优选地，所述的连接座组件包括下连接座、上连接座，所述的下连接座、上连接座之间可转动地连接，所述的光学镜片设置在所述的下连接座上，所述的瞳距调节座连接在所述的上连接座上。
上述技术方案优选地，所述的目镜筒组件包括目镜筒、目镜调节筒、视度环、视度调节环以及目镜光阑，所述的目镜筒连接在所述的调节环上，所述的目镜调节筒连接在所述的目镜筒上，所述的视度环通过所述的视度调节环连接在所述的目镜调节筒上，所述的目镜光阑连接在所述的目镜筒上。
本发明的另一个目的是提供一种具有上述可调节双目镜筒的手术显微镜。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：
本发明通过双目镜筒的调节，可以在使用手术显微镜时为医生提供舒适的姿势，使医生能够始终专注于其高精度工作；满足不同医生的使用需求，以人体工程学的姿势工作，帮助减少使用手术显微镜时的疲惫。
附图说明
附图1为本实施例中双目镜筒的立体示意图；
附图2为本实施例中双目镜筒的侧视示意图；
附图3为本实施例中调节机构一个实施方式的剖视示意图(处于第一设定位置)；
附图4为本实施例中调节机构一个实施方式的剖视示意图(处于第二设定位置)；
附图5为本实施例中调节机构一个实施方式的仰视示意图；
附图6为本实施例中调节机构另一个实施方式的剖视示意图(处于第一设定位置)；
附图7为本实施例中调节机构另一个实施方式的剖视示意图(处于第二设定位置)；
附图8为本实施例中双目镜筒处于第一使用状态下的延长距离示意图；
附图9为本实施例中双目镜筒处于第二使用状态下的延长距离示意图；
附图10为现有技术下双目镜筒的示意图；
附图11为本实施例中光学镜片切入时的示意图；
附图12为本实施例中光学镜片切出时的示意图；
附图13为本实施例中双目镜筒处于第一使用状态下的光学镜组示意图；
附图14为本实施例中双目镜筒处于第二使用状态下的光学镜组示意图；
附图15为本实施例中光学镜组参数中半径、厚度示意图；
附图16为本实施例中双目镜筒处于第一使用状态下的使用状态示意图；
附图17为本实施例中双目镜筒处于第二使用状态下的使用状态示意图。
以上附图中：
10、下连接座；100、光孔；11、上连接座；
2、瞳距调节座；
3、目镜筒座；30、滑块；
4、光学镜片；
50、目镜筒；51、目镜调节筒；52、视度环；53、视度调节环；54、目镜光阑；
60、调节环；600、滑槽；61、第一限位环；62、第二限位环；63、套体；
70、调节块；700、安装孔；701、避位孔；702、安装块；703、第一定位槽；704、第二定位槽；71、弹性片；710、折弯部；72、操作件；73、导向座；74、导向块；
80、第一直角棱镜；81、第一透镜组；82、等腰直角棱镜；83、第二直角棱镜；84、普罗棱镜；85、第二透镜组；86、第三透镜组。
a、基准面；b、对比面。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
如图1、2所示的一种可调节双目镜筒，适配在手术显微镜上，其包括连接座组件、瞳距调节座2、目镜筒座3、目镜筒组件以及光学镜片4。
连接座组件用于与手术显微镜的镜身连接，其包括下连接座10、上连接座11，下连接座10、上连接座11之间可转动地连接。具体的：下连接座10的端面为连接端，与手术显微镜的镜身连接，并且下连接座10的端面开设有光孔100，从手术显微镜的镜身接收光线，光学镜片4连接在下连接座10上与光孔100配合；瞳距调节座2则固定连接在上连接座11上。
目镜筒座3固定连接在瞳距调节座2上，目镜筒组件连接在目镜筒座3上。目镜筒组件包括目镜筒50、目镜调节筒51、视度环52、视度调节环53以及目镜光阑54，目镜调节筒51固定连接在目镜筒50上，视度环52通过视度调节环53连接在目镜调节筒51上，目镜光阑54螺纹连接在目镜筒50上。目镜筒组件没有进行改进，在此不进行展开描述。
在本实施例中：目镜筒组件通过调节机构连接在目镜筒座3上；光学镜片4通过切换机构设置在下连接座10的端面上。双目镜筒通过调节机构、切换机构的配合，使双目镜筒在一种实施方式下具有两种使用状态：第一使用状态和第二使用状态，实现双目镜筒的两种长度调节，如图16、17所示。以下具体对调节机构、切换机构进行详细描述。
如图1-7所示：调节机构包括调节环60、第一限位环61以及第二限位环62。其中：调节环60连接在目镜筒座3上，并且调节环60可沿其轴向相对目镜筒座3移动，目镜筒组件的目镜筒50连接在调节环60上。具体的说：调节环60的一端从目镜筒座3的一端插入至其内部，并且调节环60可移动伸出目镜筒座3或者缩入目镜筒座3内，目镜筒50通过插拔的方式插入在调节环60的另一端。目镜筒50与调节环60之间设置有套体63，套体63优选为铜套，便于目镜筒50插拔连接至调节环60。第一限位环61固定连接在目镜筒座3的一端，第二限位环62固定套设在调节环的另一端，可以通过操作第二限位环62实现调节环60的移动。
当双目镜筒处于第一使用状态下，调节环60朝远离目镜筒座3的方向移动至第一设定位置，该第一设定位置为调节环60移动伸出目镜筒座3至调节环60的一端与第一限位环61相抵时的位置；当双目镜筒处于第二使用状态下，调节环60朝靠近目镜筒座3的方向移动至第二设定位置，该第二设定位置为调节环60移动缩入目镜筒座3至使第二限位环62与第一限位环61相抵。
如图8-10所示：调节环60的长度为如20mm，双目镜筒处于第一使用状态下，双目镜筒 较现有结构可延长23mm，双目镜筒处于第二使用状态下，双目镜筒较现有结构则可延长43mm。当然双目镜筒的延长长度可以根据调节环60的长度调整。
调节环60与目镜筒座3相对移动给出以下两种实施方式：
一种实施方式下：如图3、4所示：调节环60与目镜筒座3之间通过螺纹连接，具体的：调节环60一端的外周设置外螺纹，目镜筒座3的内周面上设置内螺纹，通过转动调节环60实现两者相对位置的移动调节。
另一种实施方式下：如图5-7所示：调节环60、目镜筒座3两者中的一者上开设有滑槽600，另一者上设置有滑块30，滑槽600沿调节环60的轴向延伸，滑块30位于滑槽600内，具体的：调节环60上开设滑槽600，目镜筒座3上设置滑块30。
如图11、12所示：切换机构包括调节块70、弹性片71、操作件72以及移动导向组件。其中：
调节块70活动连接在下连接座10上，具体为调节块70可上下移动地连接在下连接座10上，调节块70上开设有安装孔700、避位孔701，安装孔700、避位孔701上下设置，安装孔700处设置安装块702，光学镜片4通过安装块702覆盖在安装孔700上。
如图11所示：当双目镜筒处于第一使用状态下，安装孔700与光孔100同轴，安装孔700上光学镜片4切入光孔100；如图12所示：当双目镜筒处于第二使用状态下，避位孔701与光孔100同轴，避位孔701上无光学镜片4，光学镜片4切出光孔100。双目镜筒在第一使用状态、第二使用状态下，光学镜片4为负光焦度的单透镜。
弹性片71的一端固定，弹性片71的另一端形成折弯部710；调节块70上开设有第一定位槽703、第二定位槽704，光学镜片4切入光孔100时，弹性片71的折弯部710卡入调节块70的第一定位槽703内；光学镜片4切出光孔100时，弹性片71的折弯部710卡入调节块70的第二定位槽704内，通过弹性片71卡入第一定位槽703、第二定位槽704可以判断光学镜片4是否切换到位。
操作件72连接在下连接座10上并与调节块70配合控制调节块70上下移动，如操作件72与调节块70之间通过螺纹连接，操作件72相对下连接座10可转动不可移动，调节块70相对下连接座10可以移动不可转动，这样，通过旋转操作件72可以带动调节块70移动。
移动导向组件包括导向座73、导向块74，导向座73连接在下连接座10上，导向块74连接在导向座73上，且位于调节块70的两侧，导向座73与导向块74之间形成导向通道，导向通道沿调节块70的移动方向延伸，调节块70的两端均位于导向通道内，通过移动导向组件可以确保调节块70移动的稳定性。
此外，本实施例中的双目镜筒的另一种实施方式中其具有第三使用状态、第四使用状态，处于第三使用状态下，光学镜片4切出光孔100，调节环60朝远离目镜筒座3的方向移动至第一设定位置；处于第四使用状态下，光学镜片4切入光孔100，调节环60朝靠近目镜筒座3的方向移动至第二设定位置。双目镜筒在第三使用状态、第四使用状态下，光学镜片4为正光焦度的单透镜。第三使用状态、第四使用状态与第一使用状态、第二使用状态的原理类似，在此就不进行赘述。
如图13、14所示：双目镜筒还包括光学镜组，光学镜组包括沿光路方向依次分布的第一直角棱镜80、第一透镜组81、等腰直角棱镜82、第二直角棱镜81、普罗棱镜84、第二透镜组85以及第三透镜组86，第一直角棱镜80、第一透镜组81、等腰直角棱镜82、第二直角棱镜83设置在连接座组件内；普罗棱镜84设置在瞳距调节座2内，第二透镜组85、第三透镜组86设置在目镜筒座3内。
第一透镜组81焦距f G2满足100mm＜f G2＜300mm，第一透镜组81包括具有正光焦度的单透镜G2、负光焦度的双胶合透镜组G3，该双胶合透镜组G3满足：
Figure PCTCN2022108854-appb-000005
R 2为胶合面曲率半径，
Figure PCTCN2022108854-appb-000006
为胶合面有效孔径。
第二透镜组85焦距f G3满足-1＜f G3/f G2＜-0.2，第二透镜组85包括具有负光焦度的双胶 合透镜组G4，该双胶合透镜组G4满足：
Figure PCTCN2022108854-appb-000007
R 3为胶合面曲率半径，
Figure PCTCN2022108854-appb-000008
为胶合面有效孔径；
第三透镜组86焦距f G4满足1＜f G2/f G4＜10，第三透镜组86包括具有正光焦度的双胶合透镜组，但对其胶合面曲率半径、胶合面有效孔径没有要求。
以下为双目镜筒处于第一使用状态(表1)、第二使用状态(表2)下光学镜组的参数。
表1
Figure PCTCN2022108854-appb-000009
表2
Figure PCTCN2022108854-appb-000010
Figure PCTCN2022108854-appb-000011
如图15所示：表1、表2中：
半径r为镜片表面曲率半径，
厚度d为镜片中心厚度，
Nd为d光(波长589.3nm)在光学玻璃中的折射率，
Vd的解释：由于同一透明介质对不同波长的光存在折射率的差异，而白光又是由不同波长的各色光组成的，因此透明物质在折射白光时会发生色散这一特殊现象，阿贝数就是用以表示透明介质色散能力的指数，一般使用的参照基数是中部色散，就是青光和红光的折射率之差。
阿贝数Vd＝(nd-1)/(nF-nC)，
nd、nF和nC分别是D光、F光和C光的折射率。
D光—黄光，589.3nm，钠光谱中的D线，
F光—青光，486.1nm，氢光谱中的F线，
C光—红光，656.3nm，氢光谱中的C线。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (22)

  1. 一种可调节双目镜筒，包括连接座组件、瞳距调节座、目镜筒座以及目镜筒组件，所述的瞳距调节座连接在所述的连接座组件上，所述的目镜筒座连接在所述的瞳距调节座上，所述的目镜筒组件连接在所述的目镜筒座上，所述的连接座组件上开设有光孔，其特征在于：
    所述的目镜筒组件通过调节机构连接在所述的目镜筒座上，所述的调节机构包括调节环，所述的调节环连接在所述的目镜筒座上，并且所述的调节环可沿其轴向相对所述的目镜筒座移动，所述的目镜筒组件连接在所述的调节环上；所述的连接座组件上设置有可切入或切出所述的光孔的光学镜片。
  2. 根据权利要求1所述的可调节双目镜筒，其特征在于：所述的双目镜筒具有第一使用状态、第二使用状态，处于第一使用状态下，所述的调节环朝远离所述的目镜筒座的方向移动至第一设定位置，且所述的光学镜片切入所述的光孔；处于第二使用状态下，所述的调节环朝靠近所述的目镜筒座的方向移动至第二设定位置，且所述的光学镜片切出所述的光孔；
    或者所述的双目镜筒具有第三使用状态、第四使用状态，处于第三使用状态下，所述的光学镜片切出所述的光孔，所述的调节环朝远离所述的目镜筒座的方向移动至第一设定位置；处于第四使用状态下，所述的光学镜片切入所述的光孔，所述的调节环朝靠近所述的目镜筒座的方向移动至第二设定位置。
  3. 根据权利要求2所述的可调节双目镜筒，其特征在于：所述的调节环的一端从所述的目镜筒座的一端插入至其内部，并且所述的调节环可移动伸出所述的目镜筒座或者缩入所述的目镜筒座内；所述的目镜筒组件连接在所述的调节环的另一端。
  4. 根据权利要求3所述的可调节双目镜筒，其特征在于：所述的目镜筒组件插入至所述的调节环的另一端内，并且所述的目镜筒组件与所述的调节环之间设置有套体。
  5. 根据权利要求3所述的可调节双目镜筒，其特征在于：所述的调节机构还包括第一限位环，所述的第一限位环连接在所述的目镜筒座的一端，处于所述的第一设定位置时，所述的调节环移动伸出所述的目镜筒座至所述的调节环的一端与所述的第一限位环相抵。
  6. 根据权利要求5所述的可调节双目镜筒，其特征在于：所述的调节机构还包括第二限位环，所述的第二限位环固定套设在所述的调节环的另一端，处于所述的第二设定位置时，所述的调节环移动缩入所述的目镜筒座至使所述的第二限位环与所述的第一限位环相抵。
  7. 根据权利要求1至6中任意一项权利要求所述的可调节双目镜筒，其特征在于：所述的调节环与所述的目镜筒座之间通过螺纹连接。
  8. 根据权利要求1至6中任意一项权利要求所述的可调节双目镜筒，其特征在于：所述的调节环、目镜筒座两者中的一者上开设有滑槽，另一者上设置有滑块，所述的滑槽沿所述的调节环的轴向延伸，所述的滑块位于所述的滑槽内。
  9. 根据权利要求1所述的可调节双目镜筒，其特征在于：所述的光学镜片通过切换机构设置在所述的连接座组件上，所述的切换机构包括调节块，所述的调节块活动连接在所述的连接座组件上，所述的调节块上开设有安装孔、避位孔，所述的光学镜片设置在所述的安装孔上，所述的安装孔与所述的光孔同轴时，所述的光学镜片切入所述的光孔；所述的避位孔与所述的光孔同轴时，所述的光学镜片切出所述的光孔。
  10. 根据权利要求9所述的可调节双目镜筒，其特征在于：所述的切换机构还包括弹性片，所述的弹性片的一端固定，所述的弹性片的另一端形成折弯部；所述的调节块上开设有第一定位槽、第二定位槽，所述的光学镜片切入所述的光孔时，所述的弹性片的折弯部卡入所述的调节块的第一定位槽内；所述的光学镜片切出所述的光孔时，所述的弹性片的折弯部卡入所述的调节块的第二定位槽内。
  11. 根据权利要求9所述的可调节双目镜筒，其特征在于：所述的调节块可移动地连接在所述的连接座组件上。
  12. 根据权利要求11所述的可调节双目镜筒，其特征在于：所述的切换机构还包括操作件，所述的操作件连接在所述的连接座组件上并与所述的调节块配合控制所述的调节块移动； 所述的操作件与所述的调节块之间通过螺纹连接。
  13. 根据权利要求11所述的可调节双目镜筒，其特征在于：所述的切换机构还包括移动导向组件，所述的移动导向组件包括导向座、导向块，所述的导向座连接在所述的连接座组件上，所述的导向块连接在所述的导向座上，且位于所述的调节块的至少一侧，所述的导向座与所述的导向块之间形成导向通道，所述的导向通道沿所述的调节块的移动方向延伸，所述的调节块位于所述的导向通道内。
  14. 根据权利要求11所述的可调节双目镜筒，其特征在于：所述的调节块可相对所述的连接座组件在上下方向上移动，所述的安装孔、避位孔上下设置。
  15. 根据权利要求1所述的可调节双目镜筒，其特征在于：所述的光学镜片为负光焦度的单透镜或者正光焦度的单透镜。
  16. 根据权利要求1所述的可调节双目镜筒，其特征在于：所述的双目镜筒还包括光学镜组，所述的光学镜组包括沿光路方向依次分布的第一直角棱镜、第一透镜组、等腰直角棱镜、第二直角棱镜、普罗棱镜、第二透镜组以及第三透镜组。
  17. 根据权利要求16所述的可调节双目镜筒，其特征在于：
    所述的第一透镜组焦距f G2满足100mm＜f G2＜300mm，
    所述的第二透镜组焦距f G3满足-1＜f G3/f G2＜-0.2，
    所述的第三透镜组焦距f G4满足1＜f G2/f G4＜10。
  18. 根据权利要求17所述的可调节双目镜筒，其特征在于：
    所述的第一透镜组包括具有正光焦度的单透镜、负光焦度的双胶合透镜组，该双胶合透镜组满足：
    Figure PCTCN2022108854-appb-100001
    R 2为胶合面曲率半径，
    Figure PCTCN2022108854-appb-100002
    为胶合面有效孔径；
    所述的第二透镜组包括具有负光焦度的双胶合透镜组，该双胶合透镜组满足：
    Figure PCTCN2022108854-appb-100003
    R 3为胶合面曲率半径，
    Figure PCTCN2022108854-appb-100004
    为胶合面有效孔径；
    所述第三透镜组包括具有正光焦度的双胶合透镜组。
  19. 根据权利要求16所述的可调节双目镜筒，其特征在于：所述的第一直角棱镜、第一透镜组、等腰直角棱镜、第二直角棱镜设置在所述的连接座组件内；所述的普罗棱镜设置在所述的瞳距调节座内，所述的第二透镜组、第三透镜组设置在所述的目镜筒座内。
  20. 根据权利要求1所述的可调节双目镜筒，其特征在于：所述的连接座组件包括下连接座、上连接座，所述的下连接座、上连接座之间可转动地连接，所述的光学镜片设置在所述的下连接座上，所述的瞳距调节座连接在所述的上连接座上。
  21. 根据权利要求1所述的可调节双目镜筒，其特征在于：所述的目镜筒组件包括目镜筒、目镜调节筒、视度环、视度调节环以及目镜光阑，所述的目镜筒连接在所述的调节环上，所述的目镜调节筒连接在所述的目镜筒上，所述的视度环通过所述的视度调节环连接在所述的目镜调节筒上，所述的目镜光阑连接在所述的目镜筒上。
  22. 一种手术显微镜，其特征在于：其包含权利要求1-21中任意一项权利要求所述的可调节双目镜筒。
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