CN216823417U - Eye pressure gauge measuring head - Google Patents

Abstract

The utility model discloses an eye manometer measuring head, the measuring head to current tonometer adopts the shading paint to pollute the measuring head easily as shading material, produces the problem of harm to the eyes easily when measuring, provides following technical scheme, thin columniform casing including the thick one end of one end, the casing both ends set up the opening, the thin one end of casing sets up the test probe with eyes contact, the thick one end setting of casing is used for the eyepiece that eyes looked over, test probe and eyepiece all adopt non-light tight optical material to make, the inner wall cover of casing has the one deck photomask. Adopt the photomask as the light shield layer, replace the shading that current product used and spray paint, can effectively eliminate the pollution problem that uses the toxic and harmful substance that the shading sprays paint and bring, nontoxic and harmless base film and shading coating can be chooseed for use to the photomask, cause the inspector eye to suffer adverse effect because of inside shading material leaks outward when preventing to detect the intraocular pressure again.

Description

Eye pressure gauge measuring head

Technical Field

The utility model relates to an intraocular pressure measurement field, more specifically says, it relates to an intraocular pressure meter measuring head.

Background

An applanation tonometer is an instrument for measuring intraocular pressure of human eyes, and is used for indirectly measuring intraocular pressure by using an applanation head to applanate cornea, and can be used for auxiliary diagnosis of eye diseases of cataract, glaucoma and the like. The device mainly comprises a pressure measuring head, a pressure measuring device, a gravity balancing pole and a dial, and the sitting position of a patient is measured. The principle is that the intraocular pressure can be converted into a rotation angle through a gravity balance rod by a mechanical principle, and then a dial disc reads out a corresponding pressure value.

At present, chinese patent with publication number CN102813502B discloses a contact applanation tonometer, which comprises a probe, a light source, a first image sensor, a convex lens, a strain gauge, a microprocessor and a display memory, wherein the probe is substantially in a shape of a truncated cone with a small bottom and a large top, and is made of a transparent optical material, the side surface of the probe is provided with an inclined surface, the width d of the inclined surface is 3-10 mm, the upper end of the probe is fixedly provided with an elastic beam, the outer end of the elastic beam is fixedly connected to the lower end of a shell, the strain gauge is arranged on the elastic beam, light emitted by the light source is collimated into parallel light beams by the convex lens, the parallel light beams vertically enter the upper end of the probe, and the light beams are reflected on the inclined surface of the probe after being totally reflected on the side surface and the lower bottom surface of the probe in sequence and then directly enter the first image sensor.

Although this kind of contact tonometer that flattens can measure the intraocular pressure better, generally adopt the shading paint to carry out the spraying in its casing to reach the effect that the casing was completely shaded, just can carry out the intraocular pressure and detect, but the shading paint all has toxicity, causes toxic substance very easily after the long-time use in the production process and pollutes the probe, causes the harm to measurand people's eyes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an eye pressure meter and measuring head thereof, have the advantage that can effectively prevent that the shading layer material of measuring head from causing the injury to people's eye.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an eye manometer measuring head, includes the thin columniform casing of the thick one end of one end, and the casing both ends set up the opening, and the thin one end of casing sets up the test probe who contacts with eyes, and the thick one end of casing sets up the eyepiece that is used for people's eye to look over, and test probe and eyepiece all adopt non-light tight optical material to make, and the inner wall of casing covers has the one deck photomask.

Adopt above-mentioned technical scheme, adopt the photomask as the light shield layer, replace the shading that current product used and spray paint, can effectively eliminate the pollution problem that uses the toxic and harmful substance that the shading sprays paint and bring, nontoxic and harmless base film and shading coating can be chooseed for use to the photomask, cause the inspector eye to suffer adverse effect because of inside shading material leaks outward when preventing to detect the intraocular pressure again.

Furthermore, the detection probe comprises a contact piece for contacting human eyes and a horizontal indicating piece for indicating the level, the horizontal indicating piece is arranged in the shell and is a cylinder, one end of the horizontal indicating piece, far away from the contact piece, is equally divided into two equal semicircular parts by taking a horizontal line as a dividing line, each part and the dividing line form an included angle of 30 degrees to form a semicircular section, and the semicircular sections are plated with reflection coatings.

By adopting the technical scheme, when the inner edges of the two semicircular sections are just tangent, namely the measuring head is in a complete level, the pressure borne by the measuring head is equal to the pressure in an eye, and by arranging the reflective coating, a measurer can better observe whether the inner edges of the semicircular sections are tangent or not, so that the accuracy of a measuring result is improved.

Furthermore, the contact piece is in a circular truncated cone shape, the inclination angle of the contact piece is 75 degrees, an inner chamfer angle of 15 degrees is formed at the position where the shell is contacted with the side surface of the contact piece, and the contact piece and the shell are bonded through medical resin.

By adopting the technical scheme, the contact piece and the shell can be tightly and seamlessly attached together, the combined work of the contact piece and the shell is convenient to simplify, the quality of the measuring head is improved, and the influence of water vapor entering the shell on internal imaging can be effectively prevented.

Further, the contact member is integrally formed with the level indicator.

Adopt above-mentioned technical scheme, the contact forms through integrated into one piece preparation with horizontal indicator, can eliminate the junction and connect the adverse effect that the face connection is not close to causing formation of image, helps improving the degree of accuracy that measuring staff people's eye observed.

Furthermore, the shell is provided with angle scale marks along the circumferential direction by taking the dividing surface of the horizontal indicating piece as a base surface.

By adopting the technical scheme, the measuring head can be conveniently and horizontally arranged on the equipment, and the inaccuracy of the detection result caused by the installation error of the measuring head is eliminated.

Furthermore, the ocular comprises a first disk and a second disk which are fixedly connected along the central axis, the diameter of the first disk is equal to the inner diameter of the thicker end of the shell, the diameter of the second disk is equal to the outer diameter of the thicker end of the shell, and the first disk and the second disk are bonded with the shell through medical resin.

Adopt above-mentioned technical scheme, make first disc imbed in the casing, help improving the compactness that first disc and casing are connected, help improving the quality of measuring head production, can prevent effectively that steam from getting into and causing the influence to inside formation of image in the casing.

Further, the first disk and the second disk are integrally formed.

Adopt above-mentioned technical scheme, first disc forms through integrated into one piece preparation with the second disc, can eliminate the junction and connect the adverse effect that the face connection does not closely cause formation of image, helps improving the degree of accuracy that measuring staff people's eye observed.

Further, the optical material adopts aircraft glass.

Adopt above-mentioned technical scheme, can reduce the foreign matter oppression sense that test probe caused to measurand's eyes, help improving user experience, reduce the influence that causes measurand eyes.

To sum up, the utility model discloses following beneficial effect has:

1. the non-toxic shading film is adopted to replace the traditional toxic shading paint, so that the shading layer can be prevented from polluting the measuring head to cause adverse effects on the eyes of a measured person;

2. the structure is precise, and the assembly work is simple;

3. the foreign body sensation received by eyes of a measured person is small during measurement, and the user experience is good.

Drawings

FIG. 1 is a perspective view of a measuring head of an tonometer in accordance with the present embodiment;

FIG. 2 is a cross-sectional view of a measuring head of an tonometer in accordance with the present embodiment;

FIG. 3 is a perspective view of the inspection probe in the present embodiment;

fig. 4 is a perspective view of the eyepiece in this embodiment.

In the figure: 1. detecting a probe; 2. a housing; 3. an eyepiece; 4. angle scale lines; 5. a contact member; 6. a level indicator; 7. cutting into a semicircle; 8. a reflective coating; 9. a first disc; 10. a second disk.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Referring to fig. 1, an ocular manometer measuring head comprises a cylindrical shell 2 with a thick end and a thin end, wherein openings are arranged at two ends of the shell 2, a detection probe 1 in contact with eyes is installed in the opening at the thin end of the shell 2, and an eyepiece 3 for viewing by human eyes is installed in the opening at the thick end of the shell 2.

Specifically, referring to fig. 1 to 3, the inspection probe 1 includes a contact member 5 for contacting the human eye and a level indicator 6 for indicating a level. Contact 5 is the round platform form, and great one side sets up in casing 2 outside, and less one side sets up inside casing 2, and the diameter size of its less one side equals the inner diameter size of casing 2 of its place one end, and the inclination on contact 5's inclined plane is 75 degrees, and the inclined plane surface of contact 5 is frosted, is convenient for laminate with casing 2's opening better. The horizontal indicator 6 is a cylinder, the thickness of the horizontal indicator is equal to the caliber of the smaller end of the shell 2, the horizontal indicator 6 is arranged in the shell 2, and the side surface of the horizontal indicator 6 is attached to the inner wall of the shell 2. One end of the horizontal indicator 6 is connected with the contact element 5, the other end of the horizontal indicator is equally divided into two equal semicircular parts by taking the horizontal line as a dividing line, each semicircular section is cut out by an included angle of 30 degrees with the dividing line, each semicircular section is plated with a reflective coating film, and the reflective coating film in the embodiment is a titanium dioxide coating film. When the inner edges of the two semicircular sections are tangent, i.e. the measuring head is at the full level, the pressure born by the measuring head is equal to the pressure in the eye. The contact member 5 and the level indicator 6 are integrally formed by aircraft glass through die casting. The contact surfaces of the contact element 5 and the level indicator 6 with the shell 2 are coated with medical resin for bonding, and the medical resin in the embodiment adopts medical epoxy resin adhesive.

Referring to fig. 1 to 4, the eyepiece 3 comprises a first disk 9 and a second disk 10 which are fixedly connected along a central axis, the thickness of the first disk 9 is equal to that of the second disk 10, the diameter of the first disk 9 is equal to the inner diameter of the thicker end of the shell 2, the diameter of the second disk 10 is equal to the outer diameter of the thicker end of the shell 2, the first disk 9 is arranged in the shell 2, the second disk 10 is arranged outside the shell 2, and the first disk 9 and the second disk 10 are formed by aircraft glass through integral molding and die casting. The side face of the first disc 9 is attached to the opening of the connecting end of the shell 2, and a 45-degree chamfer is arranged on the end face of one side, away from the second disc 10, of the first disc 9, so that the first disc 9 is completely attached to the shading film on the inner side of the shell 2 conveniently, and the shading performance of the shading film is improved beneficially. The contact surfaces of the first disk 9 and the second disk 10 with the shell 2 are coated with medical resin for bonding, and the medical resin in the embodiment adopts medical epoxy resin adhesive.

Referring to fig. 1 and 2, the upper end of the shell 2 is conical, the lower end is cylindrical, and an opening at the upper end of the shell is provided with an internal chamfer of 15 degrees which is matched with the inclined plane of the contact element 5, so that the upper end of the shell 2 and the detection probe 1 are firmly combined together. The conical tail part at the upper end of the shell 2 is provided with angle scale lines 4 along the circumferential direction according to the division plane of the horizontal indicator 6 as a base plane, the range of the angle scale lines is 0-180 degrees, the division value is 10 degrees, and corresponding numbers are marked beside the four scale lines of 0 degree, 60 degrees, 120 degrees and 180 degrees. The light shielding film is arranged in the inner cavity of the shell 2 and between the detection probe 1 and the ocular lens 3.

The working process and principle of the embodiment are as follows:

during operation, according to angle scale mark 4, install the measuring head on the tonometer, contradict the human eye with the measuring head and detect.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. An tonometer measuring head, characterized in that: thin columniform casing (2) including the thick one end of one end, casing (2) both ends set up the opening, the thin one end of casing (2) sets up test probe (1) with the eye contact, the thick one end setting of casing (2) is used for eye eyepiece (3) of looking over, test probe (1) and eyepiece (3) all adopt non-light tight optical material preparation, the inner wall of casing (2) covers there is the one deck photomask.

2. The tonometer measuring head of claim 1, wherein: the detection probe (1) comprises a contact piece (5) used for contacting human eyes and a horizontal indicating piece (6) used for indicating the level, the horizontal indicating piece (6) is installed in the shell (2), the horizontal indicating piece (6) is a cylinder, one end, far away from the contact piece (5), of the horizontal indicating piece (6) is equally divided into two equal semicircular parts by taking a horizontal line as a dividing line, each part forms a 30-degree included angle with the dividing line to form a semicircular section, and the semicircular section is plated with a reflection coating film.

3. The tonometer measuring head according to claim 2, wherein: the contact piece (5) is in a round table shape, the inclination angle of the contact piece is 75 degrees, an inner chamfer of 15 degrees is formed in the position where the shell (2) is in contact with the side face of the contact piece (5), and the contact piece (5) is bonded with the shell (2) through medical resin.

4. The tonometer measuring head according to claim 2, wherein: the contact piece (5) and the horizontal indicator (6) are integrally formed.

5. The tonometer measuring head according to claim 2, wherein: the shell (2) is provided with angle scale marks (4) along the circumferential direction by taking the dividing surface of the horizontal indicating piece (6) as a base surface.

6. The tonometer measuring head of claim 1, wherein: eyepiece (3) are including first disc (9) and second disc (10) along axis fixed connection, the diameter of first disc (9) equals the internal diameter of the thick one end of casing (2), the diameter of second disc (10) equals the external diameter of the thick one end of casing (2), first disc (9) and second disc (10) bond with the shell through medical resin.

7. The tonometer measuring head according to claim 6, wherein: the first disc (9) and the second disc (10) are integrally formed.

8. The tonometer measuring head according to any one of claims 1 to 7, wherein: the optical material adopts aircraft glass.

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