CN116350260A - Wireless oral cavity imager and imaging method thereof - Google Patents
Wireless oral cavity imager and imaging method thereof Download PDFInfo
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- CN116350260A CN116350260A CN202111571549.2A CN202111571549A CN116350260A CN 116350260 A CN116350260 A CN 116350260A CN 202111571549 A CN202111571549 A CN 202111571549A CN 116350260 A CN116350260 A CN 116350260A
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- 210000000214 mouth Anatomy 0.000 title claims abstract description 33
- 238000003384 imaging method Methods 0.000 title claims abstract description 24
- 230000005855 radiation Effects 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002601 radiography Methods 0.000 description 2
- 206010065687 Bone loss Diseases 0.000 description 1
- 206010015150 Erythema Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000009982 effect on human Effects 0.000 description 1
- 231100000321 erythema Toxicity 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000957 no side effect Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention provides a wireless oral cavity imager and an imaging method thereof, wherein the wireless oral cavity imager comprises a wireless ray source, a wireless intraoral detector, an indicator and image pickup equipment: the indicator is arranged on the wireless intraoral detector, is used for aligning with an imaging center of the wireless intraoral detector and generating light spots in the imaging center; the camera equipment is arranged on the device of the wireless ray source and is used for shooting a radiation field area and the light spots of the wireless ray source on the wireless intraoral detector; when the light spot is coincident with the center of the radiation field area, the wireless ray source emits X rays, so that the wireless intraoral detector images according to the received X rays. The wireless oral cavity imager is simple to operate and can ensure the imaging quality.
Description
Technical Field
The invention relates to the technical field of oral cavities, in particular to a wireless oral cavity imager and an imaging method thereof.
Background
DR (Digital Radiography) digital radiography is to convert other carriers of X-ray information into electronic carriers by electronic technology, and the X-rays do not directly act on films after irradiating human bodies, and are received by a Detector (Detector) and converted into digital signals, so as to obtain a digital matrix of X-ray attenuation values (attenuation value), and the digital matrix is processed by a computer to reconstruct into images. The digital image data can be further processed, displayed, transmitted and stored by a computer, has higher resolution than the common radiograph, has rich diagnostic information, can more effectively use the diagnostic information, and improves the information utilization rate and the diagnostic value of the radiographic examination.
Currently, DR technology is widely used in oral clinical treatment to find hidden tooth structures, bone loss, tooth decay, etc., i.e., an X-ray detector is used in the oral cavity and used in combination with a radiation source to image the teeth. Specifically, a handheld ray source for dentistry is an outgoing ray source device that performs X-ray photographing of teeth by being held by hand, and is generally characterized by being compact, lightweight, easy to hold, and radiation leakage prevention. The following disadvantages exist in the use of current hand-held sources of dental radiation:
(1) In consideration of the convenience of use, a collimator and a light field indicator are not generally configured, so that a user can only estimate the coverage range of the to-be-emitted X-rays and the position of the detector in the mouth according to experience, a certain exposure deviation can be generated, the final image quality is affected, and misguidance is brought to the use diagnosis effect of the user.
(2) The indication mode commonly used at present mainly indicates light spots, only can indicate the radiation field center under the fixed SID, can not indicate the position of an intraoral detector, has poor indication precision, and can not realize the positioning alignment of shooting.
(3) The common shooting positioning and aligning scheme is to mount an intraoral detector in a rigid support, the end of the support, which is provided with the detector, enters the mouth of a patient, and an indication ring is reserved outside the mouth so as to align exposure shooting, so that artifacts are easy to introduce. And the support is usually in order to guarantee the alignment precision, needs certain rigidity, and the intraoral position of very inconvenient detector is put with the mouth and is aimed at, greatly influences patient experience.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a wireless oral cavity imager and an imaging method thereof, which are used for solving the problems of inconvenient use and poor accuracy of results in the prior art.
To achieve the above and other related objects, the present invention provides a wireless oral imager including a wireless radiation source, a wireless intraoral detector, an indicator, and an image pickup apparatus:
the indicator is arranged on the wireless intraoral detector, is used for aligning with an imaging center of the wireless intraoral detector and generating light spots in the imaging center;
the camera equipment is arranged on the device of the wireless ray source and is used for shooting a radiation field area and the light spots of the wireless ray source on the wireless intraoral detector;
when the light spot is coincident with the center of the radiation field area, the wireless ray source emits X rays, so that the wireless intraoral detector images according to the received X rays.
Preferably, a field of view area of the image pickup apparatus covers a radiation field area of the X-rays.
Preferably, the wireless radiation source further comprises a first processor that identifies the location and size of the radiation field area from the field of view area of the image capturing device.
Preferably, the indicator is rigidly connected to the wireless intraoral probe.
Preferably, the rigid connection structure is a connection frame, one end of the connection frame is a circular ring, and the tail end of the handle of the wireless intraoral detector is fixed in the circular ring; the other end of the connecting frame is fixedly connected with the indicating piece.
Preferably, the wireless detector further comprises an intraoral detector flat plate and an elastic connecting pipe, one end of the elastic connecting pipe is movably connected with the front end of the handle of the wireless intraoral detector, and the other end of the elastic connecting pipe is fixedly connected with the intraoral detector flat plate.
Preferably, an electrical connection line is provided in the elastic connection tube to transmit image data obtained by the X-rays received by the intraoral detector panel.
Preferably, the indicator is an infrared emitter.
Preferably, the image pickup apparatus is an infrared camera.
To achieve the above and other related objects, the present invention provides an imaging method for oral examination, which is suitable for the above wireless oral imager; the method at least comprises the following steps:
the wireless intraoral detector is put deep into the oral cavity of a patient, and light spots are displayed in an imaging center;
illuminating a wireless radiation source to the oral cavity of the patient and displaying a radiation field area in an imaging area;
when the light spot is positioned at the center of the radiation field area, controlling the wireless ray source to emit X rays;
the wireless intraoral detector images according to the received X-rays.
As described above, the wireless oral cavity imager and the imaging method thereof of the present invention have the following beneficial effects:
1. the wireless detector in the sleeve opening and the handheld ray source with the camera function are matched, so that the restriction of cables is avoided, and the use is more convenient;
2. the wireless intraoral detector has small change of appearance design, can be used as a newly added functional module for customers to select, and enhances the competitiveness of products;
3. the positioning device can be used for rapidly positioning in the use process, reduces the operation difficulty, reduces the requirement on a user, and can further improve the customer satisfaction.
Drawings
Fig. 1 is a schematic diagram of the structural principle of the wireless oral cavity imager of the present invention.
Fig. 2 is a schematic view showing alignment of an imaging center with a radiation field area according to the present invention.
Fig. 3 is a schematic diagram of the center calculation principle of the radiation field area of the wireless ray source.
Description of element numbers: 1. a handle; 2. an indicator; 3. a wireless radiation source; 4. an image pickup apparatus; 5. a connecting frame; 6. a light spot; 7. an intraoral detector plate; 8. and an elastic connecting pipe.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
Please refer to fig. 1-3. It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
Aiming at the problems in the prior art, the invention considers that the imaging area of the detector needs to be positioned and aligned for DR shooting of the handheld ray source, and meanwhile, a matched DR shooting positioning and aligning method is also needed to be matched with the wireless intraoral detector. Therefore, the wireless intraoral detector has a positioning function, and is convenient for accurate positioning of DR shooting in the operation process of medical staff.
Based on the technical conception, the invention provides a wireless oral cavity imager and an imaging method thereof. The following is a detailed description of specific embodiments.
Embodiment one:
fig. 1 is a schematic structural diagram of a wireless oral cavity imager according to the present invention, and the wireless oral cavity imager according to the present invention will be described in detail with reference to fig. 1.
The invention provides a wireless oral cavity imager which comprises a wireless ray source 3, a wireless intraoral detector, an indicator 2 and an imaging device 4, wherein the wireless intraoral detector is arranged on the surface of the wireless oral cavity imager:
the indicator 2 is arranged on the wireless intraoral detector, is used for aligning with an imaging center of the wireless intraoral detector, and generates a light spot 6 in the imaging center;
the camera equipment 4 is arranged on the device of the wireless ray source 3 and is used for shooting a radiation field area of the wireless ray source 3 on the wireless intraoral detector and the light spot 6;
when the light spot 6 is coincident with the center of the radiation field area, the wireless ray source 3 emits X-rays, and the wireless intraoral detector images according to the received X-rays.
According to the wireless oral cavity imager, the imaging center of the wireless oral cavity detector can be directly indicated by the indication piece 2 through the light spot 6, then the radiation field area and the light spot 6 are shot by the image pickup device 4, when the light spot 6 is coincident with the center of the radiation field area, the alignment before DR shooting is finished, so that the wireless ray source 3 is controlled to emit X rays, and the wireless oral cavity detector can accurately image according to the received X rays.
In this embodiment, the indicator 2 is rigidly connected to the wireless intraoral probe. The rigid connection structure is a connection frame 5, one end of the connection frame 5 is a circular ring, and the tail end of the handle 1 of the wireless intraoral detector is fixed in the circular ring; the other end of the connecting frame 5 is fixedly connected with the indicating piece 2. And an electrical connection line is provided in the elastic connection tube 8 to transmit image data obtained by the X-rays received by the intraoral detector panel 7. Wherein the indicator 2 is an infrared emitter. The infrared emitter emits infrared rays, electromagnetic waves with wavelengths between microwave and visible light, and non-visible light with wavelengths between 1mm and 760 nanometers (nm), which are longer than red light. All objects in the nature have irregular movement of molecules and atoms as long as the temperature of the objects is higher than absolute temperature (-273 ℃), and the surface of the objects continuously radiate infrared rays, so that the infrared rays used in normal dosage have no side effect on human bodies. Thus, erythema at the imaging center is indicated to be formed without adversely affecting the patient.
According to the invention, the infrared emitter is additionally arranged at the tail end of the handle 1 of the wireless intraoral detector, and the infrared emitted by the infrared emitter is aligned to the imaging center of the intraoral detector flat plate 7 through the design of the position and the angle, and a light spot 6 appears in the imaging center by the infrared so as to display the imaging center; when medical staff uses, the intraoral detector is placed in the mouth, and infrared rays can be directly marked as an imaging center on the face of a patient after the infrared transmitter is opened, so that the imaging center of the wireless intraoral detector is indicated, and DR shooting and positioning before the emission of a subsequent ray source are facilitated. The infrared emitter at the tail end does not shade the X-ray and does not cause the generation of artifacts.
With the image pickup apparatus 4 of the present invention, the field of view of the image pickup apparatus 4 covers the radiation field area of the X-rays. In addition, the wireless radiation source 3 further includes a first processor that identifies the position and size of the radiation field area from the field area of view of the imaging apparatus 4.
When the field of view of the image capturing apparatus 4 covers the radiation field area, the first processor can identify the position and size of the radiation field area from the field of view of the image capturing apparatus 4, and can find the center thereof by the position and size of the radiation field area.
The center calculation principle of the radiation field area of the wireless ray source is shown in fig. 3.
x 1 ＝L*tan(α+θ)-d-D/2
x 2 ＝d+D/2-L*tan(θ-α)
Wherein O is the center of the radiation field region, x 1 Is the maximum shooting position upwards of the infrared camera, x 2 The infrared camera is at the downward maximum shooting position, L is the distance between the camera and the facial skin, and can be equivalent to the focal distance in DR shooting; d is the light-emitting caliber of the wireless ray source, D is the distance between the infrared camera and the outer diameter of the light-emitting opening of the wireless ray source, alpha is the view angle of the infrared camera, and theta is the inclination angle of the infrared camera.
By x 1 And x 2 The two parameters can determine the position of the center of the radiation field area in the field area of the infrared camera.
In this embodiment, the image pickup apparatus 4 is an infrared camera. The infrared camera is adopted, the structure is simple, and the center of the radiation field area is convenient to position.
The position and shooting angle of the infrared camera relative to the passive ray source during the installation of the infrared camera are not limited as long as shielding of the beam tube and the X-ray radiation field area in the field area of the camera are ensured to be avoided.
Specifically, the improved wireless intraoral detector can indicate an imaging center through the light spot 6, the radiation field area and the center of the radiation field area determined by the improved wireless ray source 3 are adjusted, the infrared camera is adjusted, when the light spot 6 captured by the infrared camera is positioned at the center of the radiation field area as shown in fig. 2, namely, the positioning alignment of the radiation field and the imaging center is realized, and at the moment, the ray source can be controlled to emit X rays for exposure, so that an accurate image is obtained. And displaying a physical image of the imaging center of the wireless intraoral detector and the radiation field position on a screen of the handheld ray source in real time, and completing positioning and alignment shooting of DR by using the physical image.
According to the invention, through the matched design of the wireless intraoral detector and the wireless ray source 3, the restraint of an intraoral bracket is eliminated, the infrared noninductive indication positioning and the imaging display of the camera are realized, the accurate alignment shooting of the intraoral sensor imaging center and the radiation field under the intraoral fixed SID is realized, the deviation of a DR shooting radiation area and an image attention area is reduced, the image quality is ensured, the use and maintenance are convenient and simple, the appearance is elegant, and the product competitiveness is effectively improved.
Embodiment two:
to achieve the above technical object, the present invention further provides an imaging method for oral examination, the method at least comprising:
the wireless intraoral detector is put deep into the oral cavity of a patient, and a light spot 6 is displayed in an imaging center;
illuminating the wireless radiation source 3 to the oral cavity of the patient and displaying a radiation field area in an imaging area;
when the light spot 6 is positioned at the center of the radiation field area, controlling the wireless ray source 3 to emit X rays;
the wireless intraoral detector images according to the received X-rays.
The imaging method of the present invention is applicable to the wireless oral imager of the first embodiment; since the principle and the structural relationship of the wireless oral cavity imager are described in detail in the first embodiment, the description is omitted in this embodiment.
Specifically, before the examination, the imaging device 4 of the wireless ray source 3 is firstly opened, then the intraoral detector flat plate 7 at the front end of the wireless intraoral detector handle 1 is put into the mouth of a patient, and the imaging center of the wireless detector can be identified on the face of the patient under the action of the infrared transmitter; then medical staff moves the wireless ray source 3 and adjusts the gesture of the infrared camera so as to cover the field area of view of the camera on the radiation field area of the wireless ray source 3; and marking the position of the radiation field in an image when the infrared camera shoots, capturing the face of the patient with the light spot 6 and the radiation field mark by the infrared camera, displaying on a handheld intelligent mobile ray source, and finishing alignment when the posture angle of the ray source is adjusted by the hand until the infrared light spot 6 is positioned at the center of a circle of the radiation field mark, and finishing shooting by pressing an X-ray light-emitting key.
In summary, the infrared imaging area of the detector is indicated by emitting infrared rays at the detector end in the wireless port, the infrared camera is designed at the handheld ray source end to capture the infrared rays, the view field position of the radiation field at the camera can be calculated according to the position and the angle of the camera relative to the X-ray light outlet, and when the radiation field covers the imaging area of the infrared marked detector, the positioning alignment of DR shooting is completed; the user can accurately align, position and expose shooting, customer satisfaction is improved, and product competitiveness is improved. The invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. The wireless oral cavity imager is characterized by comprising a wireless ray source, a wireless intraoral detector, an indicator and image pickup equipment:
the indicator is arranged on the wireless intraoral detector, is used for aligning with an imaging center of the wireless intraoral detector and generating light spots in the imaging center;
the camera equipment is arranged on the device of the wireless ray source and is used for shooting a radiation field area and the light spots of the wireless ray source on the wireless intraoral detector;
when the light spot is coincident with the center of the radiation field area, the wireless ray source emits X rays, so that the wireless intraoral detector images according to the received X rays.
2. The wireless oral imager of claim 1, wherein a field of view of the imaging device covers a field of radiation of the X-rays.
3. The wireless oral imager of claim 2, wherein the wireless radiation source further comprises a first processor that identifies the location and size of the radiation field region from a field of view region of the imaging device.
4. The wireless oral imager of claim 1, wherein the indicator is rigidly connected to the wireless intraoral probe.
5. The wireless oral imager of claim 1, wherein the rigid connection structure is a connection frame, one end of the connection frame is a circular ring, and the handle tail end of the wireless intraoral detector is fixed in the circular ring; the other end of the connecting frame is fixedly connected with the indicating piece.
6. The wireless oral imager of claim 1, wherein the wireless detector further comprises an intraoral detector plate and an elastic connecting tube, one end of the elastic connecting tube is movably connected to the front end of the handle of the wireless intraoral detector, and the other end of the elastic connecting tube is fixedly connected to the intraoral detector plate.
7. The wireless oral imager of claim 6, wherein an electrical connection is provided within the flexible connection tube for transmitting image data from X-rays received by the intraoral detector panel.
8. The wireless oral imager of claim 1, wherein the indicator is an infrared emitter.
9. The wireless oral imager of claim 1, wherein the imaging device is an infrared camera.
10. An imaging method for oral examination, characterized by being adapted for the wireless oral imager of any one of claims 1-9; the method at least comprises the following steps:
the wireless intraoral detector is put deep into the oral cavity of a patient, and light spots are displayed in an imaging center;
illuminating a wireless radiation source to the oral cavity of the patient and displaying a radiation field area in an imaging area;
when the light spot is positioned at the center of the radiation field area, controlling the wireless ray source to emit X rays;
the wireless intraoral detector images according to the received X-rays.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111571549.2A CN116350260A (en) | 2021-12-21 | 2021-12-21 | Wireless oral cavity imager and imaging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111571549.2A CN116350260A (en) | 2021-12-21 | 2021-12-21 | Wireless oral cavity imager and imaging method thereof |
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| CN116350260A true CN116350260A (en) | 2023-06-30 |
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| CN202111571549.2A Pending CN116350260A (en) | 2021-12-21 | 2021-12-21 | Wireless oral cavity imager and imaging method thereof |
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- 2021-12-21 CN CN202111571549.2A patent/CN116350260A/en active Pending
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