CN219000260U

CN219000260U - Optical coherence tomography apparatus with adjusting mechanism

Info

Publication number: CN219000260U
Application number: CN202223294960.2U
Authority: CN
Inventors: 孙任飞
Original assignee: Shenzhen Weipu Medical Technology Co ltd
Current assignee: Shenzhen Weipu Medical Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-12
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses an optical coherence tomography device with an adjusting mechanism, which comprises an imaging shell, an optical component and an adjusting component, wherein the imaging shell comprises a rear brain stress belt and a stress side arm connected with the rear brain stress belt, and the imaging shell is provided with an arc-shaped contour surface which is attached to the face of a human body so as to form an opaque test space with the face of the human body; the imaging shell is provided with a test position corresponding to the eyes of the tested user, and an imaging light path corresponding to the test position is arranged in the imaging shell; the optical component is arranged in the imaging shell and forms an imaging light path; the adjusting component is arranged on the imaging shell and is in transmission connection with the optical component so as to adjust the relative position of the testing position and the optical component. The imaging light path and the user to be tested can keep a relatively static state, and the imaging effect is good.

Description

Optical coherence tomography apparatus with adjusting mechanism

Technical Field

The utility model relates to the technical field of optical coherence tomography imaging equipment, in particular to optical coherence tomography imaging equipment with an adjusting mechanism.

Background

Optical Coherence Tomography (OCTA) is a novel non-invasive fundus imaging examination technique that can identify retinochoroidal blood flow movement information with high resolution, and has unique advantages in retinochoroidal vascular changes and management follow-up and therapeutic effect detection of diseases. In recent years, it has been widely used for diagnosis and treatment of ophthalmic diseases such as retinal vascular diseases, glaucoma, diabetic retinopathy, and the like.

At present, the prior commercial ophthalmic OCTA equipment is huge in volume, needs to work under special diagnosis conditions and is not easy to carry. In the data acquisition process, the acquired person sits at the front of the device, the chin is fixed on a forehead bracket, and the probe on the device is adjusted to enable the probe to be accurately aligned with the eyeballs of the acquired person, so that the acquired person can acquire data only by keeping a static state for a plurality of minutes. The data acquisition of patients of special groups such as infants, children, bedridden severe patients, anesthetics, patients incapable of maintaining the required postures and fixing is particularly limited.

In view of this disadvantage, various hand-held OCT probes have also been developed on the market for clinical applications (e.g., one of the hand-held OCT probes and OCT measurement systems disclosed in CN 202699100U), however, such hand-held OCT probes require a doctor to hold the device in focus during operation, but on the one hand, there is hand-shake during operator handling; on the other hand, the body of the person to be acquired needs to be kept still, especially the head of the person to be acquired is still, which causes imaging problems such as difficulty in acquiring data, image motion artifacts and the like in the data acquisition process.

Disclosure of Invention

The utility model mainly aims to provide optical coherence tomography equipment with an adjusting mechanism, and aims to solve the imaging problems that the head of a person to be acquired and OCTA equipment are difficult to keep relatively static, data acquisition is difficult, image motion artifacts are caused in the data acquisition process, and the like.

In order to achieve the above object, the present utility model proposes an optical coherence tomography imaging apparatus with an adjusting mechanism, the optical coherence tomography imaging apparatus with an adjusting mechanism including an imaging housing, an optical component and an adjusting component, the imaging housing including a post-brain stress belt and a stress side arm connecting the post-brain stress belt, the imaging housing having an arc-shaped contour surface fitting with a human face to form an opaque test space with the human face; the imaging shell is provided with a test position corresponding to the eyes of the tested user, and an imaging light path corresponding to the test position is arranged in the imaging shell; the optical component is arranged in the imaging shell and forms the imaging light path; the adjusting component is arranged on the imaging shell and is in transmission connection with the optical component so as to adjust the relative position of the test position and the optical component.

In one embodiment, the test positions include a first test position corresponding to a left eye of the user under test and a second test position corresponding to a right eye of the user under test; the imaging optical path includes a first optical path corresponding to the first test location and a second optical path corresponding to the second test location.

In one embodiment, the optical assembly comprises a laser collimator, a tunable lens, a two-dimensional scanning galvanometer, a lens, a direction-tunable mirror, a first dichroic mirror, and a first ocular lens; when the direction-adjustable reflecting mirror faces to a first direction, the laser collimator, the adjustable focusing lens, the two-dimensional scanning galvanometer, the direction-adjustable reflecting mirror, the lens, the first dichroic mirror, the direction-adjustable reflecting mirror and the first eye lens form a first light path corresponding to the first test position.

In an embodiment, the optical assembly further comprises a second dichroic mirror and a second ocular lens; when the direction-adjustable reflecting mirror faces to a second direction, the laser collimator, the adjustable focusing lens, the two-dimensional scanning galvanometer, the direction-adjustable reflecting mirror, the lens, the direction-adjustable reflecting mirror, the second dichroic mirror and the second eye lens form a second light path corresponding to the second test position.

In an embodiment, the adjustable focus lens is an electronic adjustable focus lens.

In one embodiment, the arc profile surface is also provided with an avoidance groove matched with the nose bridge of the human body.

In an embodiment, a first elastic abutting piece which is attached to the face of the human body is arranged along the circumference of the avoidance groove.

In an embodiment, a second elastic abutting piece which is attached to the face of the human body is arranged along the circumference of the arc-shaped outline surface.

In an embodiment, the adjusting component comprises a support, a rack and a gear, the support is connected with the rack and is arranged in the imaging shell, the optical component is arranged on the support, one end of the rack extends into the imaging shell and is connected with the support, the other end of the rack is connected with the gear, the gear is meshed with the rack and drives the rack to move, and the movement direction of the rack is coaxial with the testing position.

In one embodiment, the adjusting assembly further comprises an auxiliary guide rail and a rotating handle, wherein the rack is clamped into the auxiliary guide rail, and the rotating handle is connected with the gear.

The imaging shell and the head-wearing structure are combined, the imaging light path and the tested user can keep a relatively static state and move along with the shaking of the head of the tested object, and the problems that the conventional OCT equipment or the handheld OCT equipment is difficult to focus, the image acquisition is difficult, the movement artifact is difficult and the like due to the continuous shaking of the head of the tested object are solved. The imaging shell of the head-wearing structure has compact structure and is easy to wear. Imaging shell and human face laminating to form the test space of light-tight, with the accuracy of improvement test, optical subassembly can be adjusted to adjusting component, with the change optical path, wear-type design ensures that this equipment is not restricted by the place, has good environmental suitability, not only can satisfy conventional patient's demand, can also satisfy the demand of special crowd patients such as infant, retinopathy premature infant, bedridden severe patient, anesthesia, unable maintenance required posture and fixed patient.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an imaging housing according to an embodiment of the utility model;

FIG. 2 is a schematic diagram of an optical component according to an embodiment of the utility model;

fig. 3 is a schematic structural diagram of an adjusting component according to an embodiment of the utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Meanwhile, the meaning of "and/or" and/or "appearing throughout the text is to include three schemes, taking" a and/or B "as an example, including a scheme, or B scheme, or a scheme that a and B satisfy simultaneously.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1-3 in combination, the present utility model proposes an optical coherence tomography imaging apparatus 100 with an adjusting mechanism, the optical coherence tomography imaging apparatus 100 with an adjusting mechanism includes an imaging housing 1, an optical component 2 and an adjusting component 3, the imaging housing 1 includes a post-brain stress belt 10 and a stress side arm 11 connected to the post-brain stress belt 10, the imaging housing 1 has an arc profile 12 that is attached to a human face to form an opaque test space with the human face; the imaging shell 1 is provided with a test position 13 corresponding to the eyes of a tested user, and an imaging light path corresponding to the test position 13 is arranged in the imaging shell 1; the optical component 2 is arranged in the imaging shell 1 and forms the imaging light path; the adjusting component 3 is arranged on the imaging shell 1 and is in transmission connection with the optical component 2 so as to adjust the relative position of the testing position 13 and the optical component 2.

In this embodiment, the imaging housing 1 used is combined with the head-mounted structure, and the imaging light path and the user to be measured can keep a relatively static state and move together with the head of the object to be measured, so as to solve the problems of difficulty in focusing, difficulty in acquiring images, motion artifacts and the like caused by continuous shaking of the head of the object to be measured in the conventional OCT equipment or the handheld OCT equipment. The imaging shell 1 with the head-wearing structure has compact structure and is easy to wear. Imaging shell 1 and human face laminating to form the test space of light-tight, in order to improve the accuracy of test, optical subassembly 2 can be adjusted to adjusting part 3, in order to change the optical path, wear-type design ensures that this equipment is not restricted by the place, has good environmental suitability, not only can satisfy conventional patient's demand, can also satisfy the demand of special crowd patients such as infant, retinopathy premature infant, bedridden severe patient, anesthesia, unable maintenance required posture and fixed patient.

The imaging housing may be any structure capable of being worn on the head by a user, such as a helmet or glasses, including at least one test site 13, the test site 13 corresponding to the eyes of the user to capture test data when the imaging housing is worn on the head by the user. The test position 13 may be a hole, a channel or a window, etc. for the light path to enter and exit, which are provided on the imaging housing 1. An imaging light path arranged corresponding to the test position 13 is arranged in the imaging housing 1 for OCT data acquisition of an object at the test position 13, for example an eyeball of a user wearing the head-mounted probe

Referring to fig. 1 in combination, in one embodiment, the test positions 13 include a first test position 131 corresponding to the left eye of the tested user and a second test position 132 corresponding to the right eye of the tested user; the imaging optical path includes a first optical path corresponding to the first test location 131 and a second optical path corresponding to the second test location 132.

In this embodiment, the imaging housing 1 includes two light paths, and the data acquisition switching of the left eye or the right eye can be completed by only adjusting the direction-adjustable reflecting mirror 24 without switching equipment during data acquisition, so that the data acquisition efficiency is effectively improved.

Referring to fig. 1-2 in combination, in one embodiment, the optical assembly 2 includes a laser collimator 20, an adjustable lens 21, a two-dimensional scanning galvanometer 22, a lens 23, a directionally tunable mirror 24, a first dichroic mirror 25, and a first ocular lens 26; when the direction-adjustable mirror 24 is oriented in the first direction a, the laser collimator 20, the adjustable lens 21, the two-dimensional scanning galvanometer 22, the direction-adjustable mirror 24, the lens 23, the first dichroic mirror 25, the direction-adjustable mirror 24, and the first objective lens 26 form a first optical path corresponding to the first test position 131.

In the present embodiment, the first eyepiece is mounted at the position corresponding to the first test position 131, and when the direction-adjustable mirror 24 is oriented in the first direction a, the laser collimator 20, the adjustable-focus lens 21, the two-dimensional scanning galvanometer 22, the direction-adjustable mirror 24, the lens 23, the first dichroic mirror 25, the direction-adjustable mirror 24, and the first eyepiece lens 26 form a first optical path corresponding to the first test position 131.

Referring to fig. 1-2 in combination, in one embodiment, the optical assembly 2 further includes a second dichroic mirror 27 and a second ocular lens 2823; when the direction-adjustable mirror 24 is oriented in the second direction B, the laser collimator 20, the adjustable lens 21, the two-dimensional scanning galvanometer 22, the direction-adjustable mirror 24, the lens 23, the direction-adjustable mirror 24, the second dichroic mirror 27, and the second objective lens 2823 form a second optical path corresponding to the second test position 132.

In the present embodiment, the second eyepiece is mounted at the position corresponding to the second test position 132, and when the direction-adjustable mirror 24 is oriented in the second direction B, the laser collimator 20, the adjustable focus lens 21, the two-dimensional scanning galvanometer 22, the direction-adjustable mirror 24, the lens 23, the second dichroic mirror 27, the direction-adjustable mirror 24, and the second eyepiece lens 2823 form a second optical path corresponding to the second test position 132.

Referring to fig. 2 in combination, in one embodiment, the adjustable lens 21 is an electronic adjustable lens 21.

In this embodiment, the adjustable focus lens 21 in this embodiment is an electronic adjustable focus lens 21, and different focal lengths can be adjusted according to experimental requirements.

Referring to fig. 1 in combination, in an embodiment, the arc-shaped contour surface 12 is further provided with a avoiding groove 14 matched with the nose bridge of the human body.

In this embodiment, the avoidance groove 14 is provided to conform to ergonomics, so that the detection space is in a light-proof environment, and the imaging quality is improved.

Referring to fig. 1 in combination, in an embodiment, a first elastic abutment 15 that is attached to the face of the human body is disposed along the circumference of the avoidance groove 14.

In this embodiment, through being equipped with first elasticity butt spare 15 and accord with ergonomic for imaging shell 1 is laminated more with user's head, and detection space is in the environment of more avoiding light, improves the quality of formation of image, also improves user's use experience.

Referring to fig. 1 in combination, in an embodiment, a second elastic abutment 16 is disposed along the circumference of the arc-shaped contour 12 and is attached to the face of the person.

In this embodiment, the second elastic abutting piece 16 conforms to ergonomics, so that the imaging shell 1 is more attached to the head of the user, the detection space is in a light-proof environment, the imaging quality is improved, and the use experience of the user is also improved.

Referring to fig. 3 in combination, in an embodiment, the adjusting assembly 3 includes a bracket, a rack 30 and a gear 31, the bracket is connected with the rack 30 and is disposed in the imaging housing 1, the optical assembly 2 is disposed in the bracket, one end of the rack 30 extends into the imaging housing 1 and is connected with the bracket, the other end of the rack is connected with the gear 31, the gear 31 is meshed with the rack 30 and drives the rack 30 to move, and the movement direction of the rack 30 is coaxial with the test position 13.

In this embodiment, the rack 30 can be driven to move by rotating the gear 31 to bring the adjusting assembly 3 on the rack 30 toward or away from the testing position 13 for self-alignment adjustment.

Referring to fig. 3 in combination, in one embodiment, the adjusting assembly 3 further includes an auxiliary rail 32 and a rotating handle 33, wherein the rack 30 is snapped into the auxiliary rail 32, and the rotating handle 33 is connected to the gear 31.

In this embodiment, the rotation of the gear 31 can be assisted by turning the handle 33 to drive the rack 30 to move so as to bring the adjusting assembly 3 on the rack 30 toward or away from the testing position 13 for self-alignment adjustment. And the auxiliary guide rail 32 is arranged, the auxiliary rack 30 moves along the extending direction of the auxiliary guide rail 32, and the adjusting precision is good.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. An optical coherence tomography instrument with an adjusting mechanism, characterized in that the optical coherence tomography instrument with an adjusting mechanism comprises:

the imaging shell comprises a post-brain stress belt and stress side arms connected with the post-brain stress belt, and the imaging shell is provided with an arc-shaped outline surface which is attached to the face of the human body so as to form an opaque test space with the face of the human body; the imaging shell is provided with a test position corresponding to the eyes of the tested user, and an imaging light path corresponding to the test position is arranged in the imaging shell;

the optical component is arranged in the imaging shell and forms the imaging light path; a kind of electronic device with high-pressure air-conditioning system

And the adjusting component is arranged on the imaging shell and is in transmission connection with the optical component so as to adjust the relative position of the test position and the optical component.

2. The optical coherence tomography instrument with adjustment mechanism of claim 1, wherein the test positions comprise a first test position corresponding to the left eye of the user under test and a second test position corresponding to the right eye of the user under test; the imaging optical path includes a first optical path corresponding to the first test location and a second optical path corresponding to the second test location.

3. The optical coherence tomography instrument with adjustment mechanism of claim 2, wherein the optical assembly comprises a laser collimator, an adjustable focus lens, a two-dimensional scanning galvanometer, a lens, a directionally adjustable mirror, a first dichroic mirror, and a first ocular lens;

when the direction-adjustable reflecting mirror faces to a first direction, the laser collimator, the adjustable focusing lens, the two-dimensional scanning galvanometer, the direction-adjustable reflecting mirror, the lens, the first dichroic mirror, the direction-adjustable reflecting mirror and the first eye lens form a first light path corresponding to the first test position.

4. The optical coherence tomography instrument with adjustment mechanism of claim 3, wherein the optical assembly further comprises a second dichroic mirror and a second ocular lens;

when the direction-adjustable reflecting mirror faces to a second direction, the laser collimator, the adjustable focusing lens, the two-dimensional scanning galvanometer, the direction-adjustable reflecting mirror, the lens, the direction-adjustable reflecting mirror, the second dichroic mirror and the second eye lens form a second light path corresponding to the second test position.

5. An optical coherence tomography instrument with an adjusting mechanism as recited in claim 3, characterized in that the adjustable focus lens is an electronic adjustable focus lens.

6. The optical coherence tomography instrument with adjusting mechanism of claim 2, wherein the arc profile is further provided with a relief groove matching the nose bridge of the human body.

7. The optical coherence tomography instrument with the adjusting mechanism of claim 6, wherein a first elastic abutment fitting against the face of the human body is provided along the circumference of the avoidance groove.

8. The optical coherence tomography instrument with adjustment mechanism of claim 1, wherein a second elastic abutment fitting against the face of the human body is provided along the circumference of the arcuate contour surface.

9. The optical coherence tomography instrument with an adjusting mechanism of any one of claims 1 to 8, wherein the adjusting assembly comprises a bracket, a rack and a gear, the bracket is connected with the rack and is arranged in the imaging housing, the optical assembly is arranged in the bracket, one end of the rack extends into the imaging housing and is connected with the bracket, the other end of the rack is connected with the gear, the gear and the rack are meshed, the rack is driven to move, and the moving direction of the rack is coaxial with the testing position.

10. The optical coherence tomography instrument with an adjustment mechanism of claim 9, wherein the adjustment assembly further comprises an auxiliary rail into which the rack snaps and a rotating handle that connects the gears.