CN100585448C - Medical microscope - Google Patents
Medical microscope Download PDFInfo
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- CN100585448C CN100585448C CN200810021489A CN200810021489A CN100585448C CN 100585448 C CN100585448 C CN 100585448C CN 200810021489 A CN200810021489 A CN 200810021489A CN 200810021489 A CN200810021489 A CN 200810021489A CN 100585448 C CN100585448 C CN 100585448C
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- pair
- gathering sill
- outer end
- driving stem
- interpupillary distance
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- 238000007373 indentation Methods 0.000 claims description 4
- 230000001954 sterilising effect Effects 0.000 abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 5
- 210000001747 pupil Anatomy 0.000 abstract 4
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002683 hand surgery Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention provides a medical microscope, comprising a microscope body; a pair of right-angle prism tables which are symmetrically arranged; a pair of oculars, wherein, the distance between the axis lines of the oculars is pupil distance; a pair of driving rods, wherein, the internal end parts of the driving rods are fixedly connected with the internal end parts of the right-angle prism tables at the same side respectively; an adjusting knob which is rotatablely arranged around the first rotating shaft and provided with a guiding surface vertical to the first rotating shaft; a pair of guiding troughs which take the intersection point of the first rotating shaft and the guiding surface as a symmetric center and is opened on the guiding surface in a central symmetry way. The external end parts of the driving rods are embedded inside the guiding troughs and can slide along the guiding troughs. When the external end parts of the pair of driving rods are respectively arranged at the internal end parts of the pair of guiding troughs, the pupil distance is not less than 78mm; when the external end parts of the pair of driving rods are respectively arranged at the external end parts of the pair of guiding troughs, the pupil distance is not more than 48mm. the pupil distance adjusting operation of the medical microscope is simple and precise, the processing cost is low and the sterilization is convenient.
Description
Technical field
The present invention relates to a kind of medical microscope.
Background technology
Medical microscope is widely used in numerous medical fields such as ophthalmology, ear-nose-throat department, the department of stomatology, neurosurgery, hand surgery, gynaecology.And the eyepiece essential parts that are medical microscope.Because the binocular interpupillary distance of human eye varies with each individual, generally between 48mm～78mm, so need be provided with can stepless variation between 48mm～78mm the interpupillary distance governor motion, the doctor of convenient different interpupillary distances uses this medical microscope.
Accompanying drawing 2 is structural representations of another kind of interpupillary distance governor motion of the prior art.Can relatively rotate between the right-angle prism seat (1) but can not move by being fixedly installed on a pair of gear (2) engagement on the right-angle prism seat (1), and making.A pair of knob (3) links together by screw rod (7), and is threaded mutually with pair of straight angle prism seat (1) respectively.During rotary knob (3),, can drive right-angle prism seat (1) by screw thread and draw close mutually or open, thereby regulate distance between the pair of straight angle prism seat (1) though screw rod (7) can't move left and right.Though the interpupillary distance governor motion Principles of Regulation of said structure are simple, operation is also uncomplicated, and it is also very convenient to sterilize, and needs bimanualness in use, the processing more complicated of part such as gear and screw thread during fabrication, and cost is higher.
Summary of the invention
The object of the present invention is to provide and only adopt one-handed performance just can regulate interpupillary distance between a pair of eyepiece accurately, and sterilization is convenient, the medical microscope of low cost of manufacture.
The technical solution used in the present invention is:
A kind of medical microscope comprises: the microscope body; The right-angle prism seat of symmetrically arranged pair of right and left, each described right-angle prism seat all around the pivot axis of passing this right-angle prism seat self inner end be arranged on the described microscope body, described pair of rotary axes line is parallel to each other; The eyepiece of pair of right and left, this eyepiece is fixedly installed on the outer end of described right-angle prism seat, and axial line parallels with described pivot center, and the distance between the axial line of a pair of described eyepiece is an interpupillary distance.This medical microscope also comprises: pair of right and left driving stem, the inner end of this driving stem are fixedly connected with the inner end of the described right-angle prism seat of homonymy respectively; First rotation axis with the perpendicular extension of described pivot center; Be arranged on a adjusting knob on the described microscope body rotationally around described first rotation axis, this adjusting knob possesses and the perpendicular spigot surface of described first rotation axis; Intersection point with described first rotation axis and described spigot surface is a symcenter, the center is opened in a pair of gathering sill on the described spigot surface symmetrically, the nearer end of the described symcenter of the distance of this gathering sill is an inner end, an end far away is the outer end, the outer end of a pair of described driving stem is embedded in respectively in this a pair of gathering sill, and can slide along described gathering sill.Described gathering sill is to offer along the curve that satisfies following condition: when the outer end of a pair of described driving stem was positioned at the inner end of a pair of described gathering sill respectively, described interpupillary distance was not less than 78 millimeters; When the outer end of a pair of described driving stem was positioned at the outer end of a pair of described gathering sill respectively, described interpupillary distance was not more than 48 millimeters.
There is not flex point in described gathering sill for what offer along level and smooth curve on this curve.
Described gathering sill is to offer along the curve that satisfies following condition: when the outer end of a pair of described driving stem was positioned at the inner end of a pair of described gathering sill respectively, described interpupillary distance was 78 millimeters; When the outer end of a pair of described driving stem was positioned at the outer end of a pair of described gathering sill respectively, described interpupillary distance was 48 millimeters.
Described gathering sill is for offering along the curve that satisfies following condition: when the outer end of a pair of described driving stem rotates through 1 when spending from arbitrary position of this gathering sill around described symcenter along a pair of described gathering sill respectively, described interpupillary distance zooms out or indentation M millimeter, and the numerical value of this M is 0.1～0.3.
Described gathering sill is for offering along the curve that satisfies following condition: when the outer end of a pair of described driving stem rotates through 1 when spending from arbitrary position of this gathering sill around described symcenter along a pair of described gathering sill respectively, described interpupillary distance zooms out or indentation M millimeter, and the numerical value of this M is 0.16～0.18.
Have following advantage according to medical microscope of the invention process:
1, adjusting knob can be by injection mo(u)lding, and processing is simple, and manufacturing cost is very low.
2, only need one hand just can operate this adjusting knob, realize the adjusting of interpupillary distance, easy to operate.
3, can dispose the sterilization cover, not need to be the sterilization worry.
Description of drawings
Accompanying drawing 1 is the front view of interpupillary distance governor motion of the prior art;
Accompanying drawing 2 is the front view of another kind of interpupillary distance governor motion in the prior art;
Accompanying drawing 3 is the scheme of installation of right-angle prism seat and driving stem;
Accompanying drawing 4 is the front view of the spigot surface of adjusting knob;
Accompanying drawing 5 is a partial perspective view of the present invention;
Accompanying drawing 6 is the principle schematic of right-angle prism seat and driving stem;
Accompanying drawing 7 is the principle schematic of adjusting knob;
Wherein: 1, right-angle prism seat; 2, gear; 3, knob; 7, screw rod; 9, driving stem; 10, eyepiece; 11, microscope body; 12, adjusting knob; 13, trip bolt; 14, gathering sill; 15, spigot surface; A, first rotation axis; B, pivot center; L, interpupillary distance.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described:
Shown in accompanying drawing 2,3,4, constitute by microscope body 11, symmetrically arranged pair of right and left right-angle prism seat 1, a pair of eyepiece 10, a pair of driving stem 9, an adjusting knob 12 according to medical microscope of the invention process.
Wherein: each right-angle prism seat 1 all can rotate around the pivot center b that passes self inner end body 11 that adjusts the telescope to one's eyes mutually.Eyepiece 10 is fixedly installed on the outer end of right-angle prism seat 1, and its axial line parallels with pivot center b, and the distance between the axial line of this a pair of eyepiece 10 is interpupillary distance L.
The inner end of a pair of driving stem 9 is fixedly connected with the inner end of the right-angle prism seat 1 of homonymy respectively, and the bearing of trend of driving stem 9 and pivot center b are perpendicular.
Adjusting knob 12 is arranged on the microscope body 11 rotationally around the first rotation axis a, and this first rotation axis a parallels with described pivot center b.On adjusting knob 13, possesses perpendicular spigot surface 15 with the first rotation axis a.Offer a pair of gathering sill 14 on spigot surface 15, this a pair of gathering sill 14 is a symcenter with the intersection point of the first rotation axis a and spigot surface 15, the center symmetry.An end nearer apart from symcenter of gathering sill 14 is inner end, and an end far away is the outer end.
The outer end of a pair of driving stem 9 is embedded in respectively in this a pair of gathering sill 14, and can slide along gathering sill 14.
Key of the present invention is to design the guide rail curve of suitable gathering sill 14.In order to make the adjusting of interpupillary distance steadily balanced, preferably can make the guide rail curve satisfy following condition:
When the outer end of a pair of driving stem 9 was positioned at the inner end of a pair of gathering sill 14 respectively, interpupillary distance L was 78 millimeters of maximal values, and when the outer end of a pair of driving stem 9 was positioned at the outer end of a pair of gathering sill 14 respectively, interpupillary distance L was 48 millimeters of minimum value.And, when the outer end of a pair of driving stem 9 respectively along a pair of gathering sill 14 from arbitrary position of this gathering sill 14 during around the symcenter unit of rotating through angle, the change of interpupillary distance L should be a constant numerical value.
Could guarantee like this: when rotating adjusting knob 12 with identical speed, the change speed of interpupillary distance L is steady state value.If reference mark on adjusting knob 12 can make that also scale is even, be convenient to operation.
In the actual processing, can adopt trace-point method to obtain in certain degree of accuracy scope, to satisfy the curve of approximation of above-mentioned condition.
Shown in accompanying drawing 5,6:
Interpupillary distance is L,
Distance between the center, outer end of a pair of driving stem 9 is 2Y,
Distance from pivot center b to eyepiece 10 the center is A,
Distance between the pair of rotary axes line b is 2B,
Distance from pivot center b to driving stem 9 the outer end is C,
Angle (radian) between right-angle prism seat 1 and the driving stem 9 is D,
Right-angle prism seat 1 is X1 with the angle of y between centers,
Then satisfy following system of equations between L and the Y:
Angle sin (X1)=(L/2-B)/A
Angle Y1=X1+D-π
Length Y=B-C*Sin (Y1)
Promptly get as minor function through conversion:
(L/2)＝Asin{arcsin[(Y-B)/C]-D}+B
Be [48,78] millimeter between the fluctuation zone of interpupillary distance L,, can obtain the numerical value of N interpupillary distance L, the corresponding numerical value that also can obtain N Y this interval N five equilibrium.
The angular range that driving stem 9 can rotate in gathering sill 14 is [0, (2 π-E)], and the actual angle that turns over is Y2.With the same N five equilibrium of described angular range, just can obtain the numerical value of N angle Y2.
On spigot surface 15, be that limit is set up polar coordinates with the symcenter, just can obtain point on N the polar coordinates by said method: (Y, Y2).These points are retouched out with level and smooth curve, promptly got required guide rail curve.
In order when guaranteeing the curve degree of accuracy, to avoid excessive workload, preferably select 400～500 points to be used to describe curve.This work can be finished down easily the auxiliary of computer software.Add man-hour, dig out gathering sill 14 according to this curve.
In the present embodiment, the constant E of angle selects π, and like this, the slewing area of adjusting knob 12 is wider, can guarantee the degree of accuracy that interpupillary distance L regulates.In this angular range, when driving stem 9 rotations 1 were spent, the change of interpupillary distance L was about 0.16 millimeter, and degree of accuracy is enough to satisfy user demand.
Certainly, if do not require too high degree of accuracy, also can directly use and gradually open helical as the guide rail curve.At this moment, proportional between the anglec of rotation between the center, outer end of driving stem 9 apart from 2Y and adjusting knob 12, but the relation between the anglec of rotation of interpupillary distance L and adjusting knob 12 has certain gap, that is to say, when diverse location the rotate through unit angle of driving stem 9 in gathering sill 14, the change of interpupillary distance L is uneven.But just can reduce this inhomogeneous influence that causes by describing scale as far as possible.And no matter take which kind of guide rail curve, and can both realize stepless speed changing adjustment for interpupillary distance L, therefore as long as error is not too big, just can not influence function of the present invention and use.
In order to make the easy to operate of adjusting knob 12; adjusting knob 12 is fixed on the medical microscope by trip bolt 13; adjusting knob 12 can rotate relative to trip bolt 13; slide in gathering sill 14 thereby drive a pair of driving stem 9, and then drive pair of straight angle prism seat 1 and draw close mutually or open.
As mentioned above, we are illustrated according to aim of the present invention fully, but the present invention is not limited to the foregoing description and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope of technological thought permission of the present invention.
Claims (5)
1, a kind of medical microscope comprises: microscope body (11); The right-angle prism seat (1) of symmetrically arranged pair of right and left, each described right-angle prism seat (1) all is arranged on the described microscope body (11) rotationally around the pivot center (b) that passes this right-angle prism seat (1) self inner end, and described pair of rotary axes line (b) is parallel to each other; The eyepiece of pair of right and left (10), this eyepiece (10) is fixedly installed on the outer end of described right-angle prism seat (1), and axial line parallels with described pivot center (b), and the distance between the axial line of a pair of described eyepiece (10) is interpupillary distance (L),
It is characterized in that: this medical microscope also comprises:
Pair of right and left driving stem (9), the inner end of this driving stem (9) are fixedly connected with the inner end of the described right-angle prism seat (1) of homonymy respectively;
First rotation axis (a) with the perpendicular extension of described pivot center (b);
Be arranged on a adjusting knob (12) on the described microscope body (11) rotationally around described first rotation axis (a), this adjusting knob (13) possesses the spigot surface (15) perpendicular with described first rotation axis (a);
Intersection point with described first rotation axis (a) and described spigot surface (15) is a symcenter, the center is opened in a pair of gathering sill (14) on the described spigot surface (15) symmetrically, the nearer end of the described symcenter of distance of this gathering sill (14) is an inner end, an end far away is the outer end, the outer end of a pair of described driving stem (9) is embedded in respectively in this a pair of gathering sill (14), and can slide along described gathering sill (14)
Described gathering sill (14) is to offer along the curve that satisfies following condition:
When the outer end of a pair of described driving stem (9) was positioned at the inner end of a pair of described gathering sill (14) respectively, described interpupillary distance (L) was not less than 78 millimeters; When the outer end of a pair of described driving stem (9) was positioned at the outer end of a pair of described gathering sill (14) respectively, described interpupillary distance (L) was not more than 48 millimeters.
2, a kind of medical microscope according to claim 1 is characterized in that: there is not flex point in described gathering sill (14) for what offer along level and smooth curve on this curve.
3, a kind of medical microscope according to claim 1 and 2 is characterized in that: described gathering sill (14) is to offer along the curve that satisfies following condition:
When the outer end of a pair of described driving stem (9) was positioned at the inner end of a pair of described gathering sill (14) respectively, described interpupillary distance (L) was 78 millimeters; When the outer end of a pair of described driving stem (9) was positioned at the outer end of a pair of described gathering sill (14) respectively, described interpupillary distance (L) was 48 millimeters.
4, a kind of medical microscope according to claim 3 is characterized in that: described gathering sill (14) is to offer along the curve that satisfies following condition:
When the outer end of a pair of described driving stem (9) rotates through 1 when spending around described symcenter in arbitrary position of this gathering sill (14) certainly along a pair of described gathering sill (14) respectively, described interpupillary distance (L) zooms out or indentation M millimeter, and the numerical value of this M is 0.1～0.3.
5, a kind of medical microscope according to claim 4 is characterized in that: described gathering sill (14) is to offer along the curve that satisfies following condition:
When the outer end of a pair of described driving stem (9) rotates through 1 when spending around described symcenter in arbitrary position of this gathering sill (14) certainly along a pair of described gathering sill (14) respectively, described interpupillary distance (L) zooms out or indentation M millimeter, and the numerical value of this M is 0.16～0.18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021489A CN100585448C (en) | 2008-08-05 | 2008-08-05 | Medical microscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810021489A CN100585448C (en) | 2008-08-05 | 2008-08-05 | Medical microscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101334522A CN101334522A (en) | 2008-12-31 |
| CN100585448C true CN100585448C (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810021489A Active CN100585448C (en) | 2008-08-05 | 2008-08-05 | Medical microscope |
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| CN (1) | CN100585448C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009037921B4 (en) * | 2009-08-19 | 2014-02-13 | Carl Zeiss Meditec Ag | Tube for surgical microscope |
| CN102579003B (en) * | 2012-03-03 | 2013-09-25 | 连云港天诺光学仪器有限公司 | Hand-operated integrated refractometer |
| DE102015217079B4 (en) * | 2015-09-07 | 2017-03-23 | Olympus Winter & Ibe Gmbh | Optical system of a stereo video endoscope, stereo video endoscope and method of manufacturing an optical system for a stereo video endoscope |
| CN105372809B (en) * | 2015-12-03 | 2018-06-15 | 赵益民 | Regulating mechanism, application method and the binocular magnifier of binocular magnifier |
| CN108802987A (en) * | 2018-06-01 | 2018-11-13 | 长沙得悦科技发展有限公司 | A kind of accurate interpupillary adjustment mechanism of surgical operation microscope |
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- 2008-08-05 CN CN200810021489A patent/CN100585448C/en active Active
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| Publication number | Publication date |
|---|---|
| CN101334522A (en) | 2008-12-31 |
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| C06 | Publication | ||
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Owner name: SUZHOU ZUMAX MEDICAL CO., LTD. Free format text: FORMER NAME: SUZHOU JIEMEI MEDICAL APPARATUS CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 215129 Suzhou high tech Zone, Jiangsu, the United States and the British street, No. 36 Patentee after: Zumax Medical Co., Ltd. Address before: 215011 No. 9 Deng Wei Road, hi tech Zone, Jiangsu, Suzhou Patentee before: Suzhou Jiemei Medical Apparatus Co., Ltd. |
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| CP03 | Change of name, title or address |
Address after: No.5, Zhiying street, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou Sumai Medical Technology Co.,Ltd. Address before: 215129 No. 36 Ying Street, hi tech Zone, Jiangsu, Suzhou Patentee before: Suzhou Sumai Medical Equipment Co.,Ltd. |