CN111904374A - Improved generation corneal topography analysis appearance - Google Patents
Improved generation corneal topography analysis appearance Download PDFInfo
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- CN111904374A CN111904374A CN202010938992.8A CN202010938992A CN111904374A CN 111904374 A CN111904374 A CN 111904374A CN 202010938992 A CN202010938992 A CN 202010938992A CN 111904374 A CN111904374 A CN 111904374A
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- corneal topography
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- 238000012876 topography Methods 0.000 title claims abstract description 24
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 210000004087 cornea Anatomy 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0075—Apparatus for testing the eyes; Instruments for examining the eyes provided with adjusting devices, e.g. operated by control lever
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0083—Apparatus for testing the eyes; Instruments for examining the eyes provided with means for patient positioning
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
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- Health & Medical Sciences (AREA)
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- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
Abstract
The invention belongs to the technical field of corneal topography analyzers, and particularly relates to an improved corneal topography analyzer. According to the invention, the effect of effectively adjusting the height of the chin support plate is achieved by arranging the cylinder, the support plate mounting column, the external ring, the handrail column, the pressure spring unit, the axial channel, the annular notch, the opening elastic block unit and the opening column unit on the analyzer base. The invention has the advantages of simple and effective friction clamping structure on the mounting column of the support plate, high strength during clamping, difficult accidental falling, quick and convenient operation for establishing and releasing the clamping action, high stability of the whole structure for adjusting the height of the chin support plate, convenient disassembly and assembly and maintenance, simple and efficient height adjustment of the chin support plate and more convenient and fast cornea detection operation.
Description
Technical Field
The invention belongs to the technical field of corneal topography analyzers, and particularly relates to an improved corneal topography analyzer.
Background
A corneal topography analyzer is an ophthalmic medical device which presents the surface morphology of a cornea in a computer analysis and processing mode, and mainly comprises an instrument base, a Placido disc main body and a computer system.
On the other hand, the existing corneal topography analyzer base is provided with a support frame for placing the chin of a person to be detected, the support frame is generally adjustable in height, the adjusting mode mainly comprises two modes of cylinder support and bolt tightening, the former needs to be provided with a set of cylinder system, so that the size of the base is greatly increased, and the latter needs to tighten a bolt after the height is adjusted, so that the problem is very troublesome, and therefore an improved and novel corneal topography analyzer with the chin support frame convenient for height adjustment is urgently needed in the market.
Chinese utility model patent with patent publication No. CN208002772U and publication No. 2018.10.26 discloses a corneal topography analyzer, the structure of which includes: automatic adaptation platform, adjustment frame, handrail, support frame, face hold in the palm, activity foot, platform, fuselage, rocker, stand, projecting apparatus, automatic adaptation platform install in adjustment frame bottom and adopt interference fit, and the handrail is installed and adopts welded fastening in adjustment frame both sides, and the handrail is installed in the support frame below and is parallel to each other, installs the face in the middle of the support frame and holds in the palm and adopt screw connection, and the activity foot is fixed in the platform top and adopts interference fit, and the platform mounting is in the fuselage below.
However, the corneal topography analyzer in the utility model has the problems that the operation of adjusting the height of the face support is troublesome and not flexible and convenient enough.
Disclosure of Invention
The invention aims to provide an improved corneal topography analyzer which can achieve the effect of effectively adjusting the height of a chin support plate by arranging a cylinder, a support plate mounting column, an external ring, a handrail column, a pressure spring unit, an axial channel, a ring-shaped notch, an opening elastic block unit and a strut column unit on an analyzer base. The invention has the advantages of simple and effective friction clamping structure on the mounting column of the support plate, high strength during clamping, difficult accidental falling, quick and convenient operation for establishing and releasing the clamping action, high stability of the whole structure for adjusting the height of the chin support plate, convenient disassembly and assembly and maintenance, simple and efficient height adjustment of the chin support plate and more convenient and fast cornea detection operation.
The technical scheme adopted by the invention for solving the problems is as follows: an improved corneal topography analyzer comprises an analyzer base, an optical main body, a chin support plate, a support plate mounting column, the armrest column also comprises a cylinder which is arranged on the analyzer base and used for inserting the supporting plate mounting column, an external circular ring which is sleeved on the cylinder and used for mounting the armrest column, a pressure spring unit which is arranged in the cylinder and used for jacking the supporting plate mounting column, an axial groove channel which is arranged on the cylinder, a circumferential groove opening which is arranged on the inner bottom surface of the axial groove channel, and an opening elastic block unit which is arranged on the inner ring surface of the external circular ring and inserted into the circumferential groove opening, and the opening column unit is arranged on the end surface of the inner side of the annular notch and is used for frictionally clamping the supporting plate mounting column by the opening elastic block unit in a mode of inserting the opening elastic block unit first and then jacking the opening elastic block unit inwards in the radial direction.
The further preferred technical scheme is as follows: the axial groove channels and the circumferential groove openings form an L-shaped groove, and 3 groups of L-shaped grooves are uniformly arranged on the cylinder.
The further preferred technical scheme is as follows: the opening elastic block unit rotates towards the direction of a person to be detected through the handrail columns until the two handrail columns are flush with each other, and the opening elastic block unit is sleeved on the opening column unit after rotating; the axial channel is used for inserting and mounting the open elastic block unit.
The further preferred technical scheme is as follows: the opening elastic block unit comprises a rectangular block body arranged on the inner ring surface of the external circular ring, a clamping opening arranged on the front end surface of the rectangular block body in the rotating direction, and a rear baffle plate arranged on the inner ring surface of the external circular ring and positioned on the rear end surface of the rectangular block body in the rotating direction and used for supporting and fixing the rectangular block body in the circumferential direction.
The further preferred technical scheme is as follows: prop up the post unit including setting up on the terminal surface of hoop notch medial surface and being used for inserting the insertion post of block mouth, and set up on inserting the radial medial surface of post and being used for outside jack-up be located on the rectangular block the inside partial semi-cylindrical type of block bore props up the piece, the radial medial surface top of rectangular block is in on the backup pad erection column.
The further preferred technical scheme is as follows: the opening elastic block unit is characterized in that the opening elastic block unit is arranged on an inner ring surface of the outer ring and inserted into a forming reinforcing cylinder in the rectangular block, the forming reinforcing cylinder is arranged on the rectangular block and positioned on a deformation reinforcing sheet in the radial inner side part of the clamping opening, and the clamping opening is arranged on a first clamping inner edge of the clamping opening and is clamped into a chamfer.
The further preferred technical scheme is as follows: the opening elastic block unit also comprises an elastic rope arranged on the clamping opening; the strut unit further comprises a rope body groove, two protruding columns and a second clamping chamfer, wherein the rope body groove is formed in the end face of the insertion column and used for clamping the elastic rope, the two protruding columns are respectively arranged on the upper side face and the lower side face of the rope body groove and used for clamping and fixing the elastic rope which enters the rope, the second clamping chamfer is arranged on the outer side edge of each protruding column, and the distance between the opposite end faces of the two protruding columns is 20-30% of the diameter of the elastic rope.
The further preferred technical scheme is as follows: the sum of the radial thicknesses of the insertion column and the semi-cylindrical support block is 150-200% of the width of the clamping opening.
The further preferred technical scheme is as follows: the pressure spring unit comprises a mounting groove arranged on the inner bottom surface of the cylinder, a clamping groove arranged on the lower end surface of the mounting column of the supporting plate, and a pressure spring with the upper end and the lower end inserted into the clamping groove and the mounting groove respectively.
The further preferred technical scheme is as follows: the pressure spring unit further comprises a spring mounting column arranged on the mounting groove.
According to the invention, the effect of effectively adjusting the height of the chin support plate is achieved by arranging the cylinder, the support plate mounting column, the external ring, the handrail column, the pressure spring unit, the axial channel, the annular notch, the opening elastic block unit and the opening column unit on the analyzer base. The invention has the advantages of simple and effective friction clamping structure on the mounting column of the support plate, high strength during clamping, difficult accidental falling, quick and convenient operation for establishing and releasing the clamping action, high stability of the whole structure for adjusting the height of the chin support plate, convenient disassembly and assembly and maintenance, simple and efficient height adjustment of the chin support plate and more convenient and fast cornea detection operation.
Drawings
FIG. 1 is a schematic view of the structure of an analyzer according to the present invention.
Fig. 2 is a schematic view of a position structure of the pressure spring unit in the present invention.
FIG. 3 is a schematic structural diagram of the position of the "L-shaped" slot in the present invention.
Fig. 4 is a schematic diagram of the position relationship between the open elastic block unit and the circumferential notch in the present invention, and the force f in the diagram is the driving force generated by the natural sagging of the hand of the person to be detected.
Fig. 5 is a schematic view of a position structure of the open elastic block unit according to the present invention.
FIG. 6 is a schematic view showing the use of the strut unit of the present invention clamped into the engagement opening and the rectangular block friction clamp to secure the mounting post of the supporting plate.
FIG. 7 is a schematic view of the position of the protruding pillars of the present invention.
Fig. 8 is a schematic view of the use of the protruding post to catch the fixed elastic cord in the present invention.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example (b): as shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, an improved corneal topography analyzer includes an analyzer base 11, an optical body 12, a chin support plate 13, a support plate mounting post 14, and a handle post 15, and further includes a cylinder 1 provided on the analyzer base 11 and used for insertion of the support plate mounting post 14, an outer ring 2 fitted on the cylinder 1 and used for mounting the handle post 15, a pressure spring unit 3 provided in the cylinder 1 and used for pushing up the support plate mounting post 14, an axial channel 4 provided on the cylinder 1, a circumferential groove 5 provided on an inner bottom surface of the axial channel 4, an open elastic block unit 6 provided on an inner bottom surface of the outer ring 2 and inserted into the circumferential groove 5, and an open elastic block unit 6 provided on an inner side surface of the circumferential groove 5 and used for opening the open elastic block unit 6 by first inserting and then pushing up the open elastic block unit 6 radially inward The elastic block unit 6 frictionally grips the spreader column unit 7 of the backup plate mounting column 14.
The elbow of the person to be measured will naturally hang down on the armrest column 15, so that a force for actively rotating the outer ring 2 is provided, and in this embodiment, the opening elastic block unit 6 is pushed to the opening column unit 7 by the rotation action, so that the opening elastic block unit 6 protrudes inward, and the support plate mounting column 14 at any height can be clamped, and the purpose that the height of the eye is insufficient, the chin support plate 13 is adjusted upward, otherwise, the chin support plate 13 is adjusted downward is achieved, and finally, the eye can be aligned with the optical body 12.
The axial grooves 4 and the circumferential notches 5 form an L-shaped slot, and 3 groups of L-shaped slots are uniformly arranged on the cylinder 1. The opening elastic block unit 6 rotates towards the direction of the person to be detected through the handrail columns 15 until the two handrail columns 15 are flush with each other, and the opening elastic block unit is sleeved on the opening column unit 7 after rotating; the axial channel 4 is used for the insertion mounting of the split elastic block unit 6.
In this embodiment, it is three opening elastic block unit 6, the card is three on the hoop notch 5, just can guarantee outside ring 2's balanced support, opening elastic block unit 6 inserts earlier axial channel 4, rotatory entering again hoop notch 5 blocks at last prop open post unit 7, can realize that above-mentioned opening elastic block unit 6 presss from both sides tightly behind the inside arch the direct purpose of backup pad erection column 14 chin backup pad 13 is by the final purpose of vertical fixed.
The opening elastic block unit 6 includes a rectangular block body 601 disposed on the inner annular surface of the outer ring 2, a locking opening 602 disposed on the front end surface of the rectangular block body 601 in the rotation direction, and a rear baffle 603 disposed on the inner annular surface of the outer ring 2 and located on the rear end surface of the rectangular block body 601 in the rotation direction and used for annularly supporting and fixing the rectangular block body 601. The strut unit 7 comprises an insertion column 701 which is arranged on the end surface of the inner side of the annular notch 5 and used for being inserted into the clamping opening 602, and a semi-cylindrical strut block 702 which is arranged on the radial inner side surface of the insertion column 701 and used for outwards jacking up the radial inner side part of the clamping opening 602 on the rectangular block body 601, wherein the radial inner side surface of the rectangular block body 601 is jacked on the supporting plate mounting column 14.
In this embodiment, the sum of the thickness of the insertion column 701 and the thickness of the semi-cylindrical support block 702 is greater than the width of the engaging opening 602, and the rectangular block 601 is made of rubber with moderate elasticity, so that the radial inner side surface of the rectangular block 601 is changed from being close to the support plate mounting column 14 to being against the support plate mounting column 14, thereby realizing the clamping action on the support plate mounting column 14.
The opening elastic block unit 6 further comprises a forming and reinforcing cylinder 604 arranged on the inner annular surface of the outer ring 2 and inserted into the rectangular block body 601, a deformation reinforcing sheet 605 arranged on the rectangular block body 601 and positioned in the radial inner side part of the clamping opening 602, and a first clamping chamfer arranged on the radial inner edge of the clamping opening 602. The opening elastic block unit 6 further comprises an elastic rope 606 arranged on the engaging opening 602; the strut column unit 7 further comprises a rope groove 703 which is arranged on the end face of the insertion column 701 and used for clamping the elastic rope 606, two protruding columns 704 which are respectively arranged on the upper side face and the lower side face of the rope groove 703 and used for clamping and fixing the elastic rope 606 which enters the rope groove, and a second clamping chamfer which is arranged on the outer edge of each protruding column 704, wherein the distance between the opposite end faces of the two protruding columns 704 is 20-30% of the diameter of the elastic rope 606. The sum of the radial thicknesses of the insertion column 701 and the semi-cylindrical distraction block 702 is 150-200% of the width of the clamping opening 602.
In this embodiment, the purpose of the back baffle 603 is to prevent the entire rectangular block 601 from being lifted up by the insertion column 701 and greatly deformed, the purpose of the forming and reinforcing column 604 is to prevent the rectangular block 601 from being easily pulled off from the inner annular surface of the outer ring 2, and the purpose of the deformation and reinforcing sheet 605 is to ensure a certain rigidity of the radially inner portion of the rectangular block 601 located in the engagement opening 602 and avoid the problem of deformation and collapse immediately after being pressed.
In addition, the elastic rope 606 is easily clamped between the pair of protruding columns 704 with the chamfered outer edge and the right-angled inner edge, and is relatively difficult to slide out, so that after the rectangular block body 601 leaves the inserting column 701, the elastic rope 606 is still hooked by the protruding columns 704, and the problem that the whole split elastic block unit 6 falls off from the annular notch 5 can be avoided.
The pressure spring unit 3 includes an installation groove 301 provided on the inner bottom surface of the cylinder 1, an engagement groove 302 provided on the lower end surface of the supporting plate installation column 14, and a pressure spring 303 having upper and lower ends inserted into the engagement groove 302 and the installation groove 301, respectively.
The pressure spring unit 3 further includes a spring mounting post 304 disposed on the mounting groove 301.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.
Claims (10)
1. An improved corneal topography analyzer comprising an analyzer base (11), an optical body (12), a chin support plate (13), a support plate mounting post (14), and a handrail post (15), characterized in that: the analyzer further comprises a cylinder (1) which is arranged on the analyzer base (11) and used for inserting the supporting plate mounting column (14), an external ring (2) which is sleeved on the cylinder (1) and used for mounting the handrail column (15), a pressure spring unit (3) which is arranged in the cylinder (1) and used for jacking the supporting plate mounting column (14), an axial groove channel (4) which is arranged on the cylinder (1), a circumferential notch (5) which is arranged on the inner bottom surface of the axial groove channel (4), and an opening elastic block unit (6) which is arranged on the inner ring surface of the external ring (2) and inserted into the circumferential notch (5), and the opening column unit (7) is arranged on the end surface of the inner side of the annular notch (5) and is used for frictionally clamping the supporting plate mounting column (14) by the opening elastic block unit (6) in a mode of inserting firstly and then jacking up the opening elastic block unit (6) radially inwards.
2. An improved corneal topography analyzer as defined in claim 1, wherein: the axial groove (4) and the circumferential groove opening (5) form an L-shaped groove, and 3 groups of L-shaped grooves are uniformly arranged on the cylinder (1).
3. An improved corneal topography analyzer as defined in claim 1, wherein: the opening elastic block unit (6) rotates towards the direction of a person to be detected through the handrail columns (15) until the two handrail columns (15) are flush with each other, and the opening elastic block unit is sleeved on the opening column unit (7) after rotating; the axial channel (4) is used for inserting and mounting the open elastic block unit (6).
4. An improved corneal topography analyzer as defined in claim 1, wherein: the opening elastic block unit (6) comprises a rectangular block body (601) arranged on the inner ring surface of the outer ring (2), a clamping opening (602) arranged on the front end surface of the rectangular block body (601) in the rotating direction, and a rear baffle (603) arranged on the inner ring surface of the outer ring (2) and located on the rear end surface of the rectangular block body (601) in the rotating direction and used for annularly supporting and fixing the rectangular block body (601).
5. An improved corneal topography analyzer as defined in claim 4, wherein: prop open post unit (7) including setting up on the terminal surface of hoop notch (5) medial surface and be used for inserting insert post (701) of joint mouth (602), and set up insert on post (701) radial medial surface and be used for outside jack-up lie in on rectangular block body (601) the block (702) is propped open to the semicircle column type of the radial inside part of joint mouth (602), rectangular block body (601) radial medial surface top is in on backup pad erection column (14).
6. An improved corneal topography analyzer as defined in claim 4, wherein: the opening elastic block unit (6) further comprises a forming and reinforcing cylinder (604) which is arranged on the inner ring surface of the outer ring (2) and inserted into the rectangular block body (601), a deformation reinforcing sheet (605) which is arranged on the rectangular block body (601) and located in the radial inner side part of the clamping opening (602), and a first clamping and chamfering edge which is arranged on the radial inner side edge of the clamping opening (602).
7. An improved corneal topography analyzer as defined in claim 5, wherein: the opening elastic block unit (6) further comprises an elastic rope (606) arranged on the clamping opening (602); the opening column unit (7) further comprises a rope body groove (703) which is arranged on the end face of the insertion column (701) and used for clamping the elastic rope (606), two protruding columns (704) which are arranged on the upper side face and the lower side face of the rope body groove (703) respectively and used for clamping and fixing the elastic rope (606) and a second clamping chamfer which is arranged on the outer edge of the protruding column (704), wherein the distance between the opposite end faces of the two protruding columns (704) is 20-30% of the diameter of the elastic rope (606).
8. An improved corneal topography analyzer as defined in claim 5, wherein: the sum of the radial thicknesses of the insertion column (701) and the semi-cylindrical support block (702) is 150-200% of the width of the clamping opening (602).
9. An improved corneal topography analyzer as defined in claim 1, wherein: the pressure spring unit (3) comprises a mounting groove (301) arranged on the inner bottom surface of the cylinder (1), a clamping groove (302) arranged on the lower end surface of the supporting plate mounting column (14), and a pressure spring (303) with the upper end and the lower end inserted into the clamping groove (302) and the mounting groove (301) respectively.
10. An improved corneal topography analyzer as defined in claim 9, wherein: the pressure spring unit (3) further comprises a spring mounting column (304) arranged on the mounting groove (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010938992.8A CN111904374B (en) | 2020-09-09 | 2020-09-09 | Improved generation cornea topography analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010938992.8A CN111904374B (en) | 2020-09-09 | 2020-09-09 | Improved generation cornea topography analyzer |
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| CN111904374A true CN111904374A (en) | 2020-11-10 |
| CN111904374B CN111904374B (en) | 2024-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010938992.8A Active CN111904374B (en) | 2020-09-09 | 2020-09-09 | Improved generation cornea topography analyzer |
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| CN208447620U (en) * | 2017-07-20 | 2019-02-01 | 田岗 | A kind of medical instrument rotary index positioning device |
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| CN211299907U (en) * | 2019-10-18 | 2020-08-21 | 李娟英 | Jaw supporting and adjusting mechanism for ophthalmologic vision detection |
| CN211324936U (en) * | 2019-12-25 | 2020-08-25 | 刘玲玲 | Special patient head elevation angle positioning instrument for ophthalmology department |
| CN212346496U (en) * | 2020-09-09 | 2021-01-15 | 浙江爱视博医疗科技有限公司 | Improved generation corneal topography analysis appearance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR830003653U (en) * | 1982-04-01 | 1983-12-26 | 민문식 | Electric lifting device for optical stand |
| JP2004049688A (en) * | 2002-07-23 | 2004-02-19 | Okamura Corp | Armrest device of chair |
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| CN111904374B (en) | 2024-07-30 |
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