CN117918990B - High-precision periodontal probe and periodontal pocket detection method - Google Patents
High-precision periodontal probe and periodontal pocket detection method Download PDFInfo
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- CN117918990B CN117918990B CN202410225098.4A CN202410225098A CN117918990B CN 117918990 B CN117918990 B CN 117918990B CN 202410225098 A CN202410225098 A CN 202410225098A CN 117918990 B CN117918990 B CN 117918990B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
- A61C19/043—Depth measuring of periodontal pockets; Probes therefor
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Abstract
The invention provides a high-precision periodontal probe and a periodontal pocket detection method, wherein the probe comprises the following components: the hand-held mechanism is used for detecting periodontal pockets and comprises a push rod capable of moving along the X direction; the drive mechanism for acquire the detection depth signal of periodontal probe, it includes: the transmission rod is detachably connected with the push rod of the handheld mechanism through the connector and extends along the X direction, one end of the transmission rod penetrates through the frame, and the other end of the transmission rod is fixed on the base of the adjusting mechanism; the grid-containing sensor movable grid plate and the grid-containing sensor fixed grid plate are fixed on the transmission rod, and the grid-containing sensor fixed grid plate is fixed on the inner bottom surface of the frame; wherein, adjustment mechanism is used for resetting the transfer arm. The invention well eliminates the influence of the limitation of the oral environment and improves the detection precision of the periodontal pocket depth.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a high-precision periodontal probe and a periodontal pocket detection method.
Background
Supragingival scaling and subgingival scraping are basic operations in the current treatment of periodontal disease, and supragingival scaling refers to cleaning of supragingival calculus above the gums with an ultrasonic working head; and subgingival scraping is to remove subgingival tartar in periodontal pockets with an ultrasonic working head. Removing inflammatory stimulus factors and promoting periodontal tissue health.
Periodontal probes are the most important periodontal inspection instruments, and can be used for probing the depth of periodontal pockets and also for probing dental calculus in periodontal pockets. However, when the conventional periodontal probe is used, most of the components are fixedly connected, the components are difficult to adjust, the repeatability of the results is poor during testing, and the adjustment and correction are difficult to realize, so that the detection accuracy of the depth of the periodontal pocket is low.
Disclosure of Invention
The invention aims to provide a high-precision periodontal probe and a periodontal pocket detection method, which improve the detection precision of periodontal pocket depth. The technical scheme adopted is as follows:
A high precision periodontal probe comprising:
a hand-held mechanism 1 for detecting periodontal pockets, comprising a push rod movable in the X direction;
the drive mechanism for acquire the detection depth signal of periodontal probe, it includes:
The transmission rod 2 passes through the connector and can be contacted with the push rod of the handheld mechanism 1, and extends along the X direction, one end of the transmission rod passes through the frame 3, and the other end of the transmission rod is fixed on the base 8 of the adjusting mechanism; the push rod passes through the connector; one end of the connector is fixed on the frame 3, and the other end of the connector is detachably connected with the shell of the handheld mechanism 1;
the capacitive grating sensor movable grating plate 4 and the capacitive grating sensor fixed grating plate 5, the capacitive grating sensor movable grating plate 4 is fixed on the transmission rod 2, and the capacitive grating sensor fixed grating plate 5 is fixed on the inner bottom surface of the frame 3;
wherein, adjustment mechanism for reset transmission pole 2, it still includes:
a horizontal adjustment knob 10 which is screwed in the X direction to adjust the position of the transmission rod 2 in the X direction and is connected with the frame 3 by screw threads;
a vertical adjustment part 9 which is movable in the Z direction to adjust the position of the transfer lever 2 in the Z direction, is connected to the bottom surface of the frame 3, and is in contact with the base 8;
and a return spring connecting the base 8 and the horizontal adjustment knob 10.
Preferably, the periodontal probe further comprises a straightness detection mechanism for detecting straightness of the periodontal probe during resetting, and the straightness detection mechanism comprises:
The laser sensor emitting portion 6 and the laser sensor receiving portion 7 are disposed opposite to each other in the Y direction, and are fixed to the inner wall of the chassis 3.
Preferably, it also includes the cover, it is installed to the chassis 3 removably, install liquid crystal display 11 and circuit board 12 on it;
The circuit board 12 comprises a wiring harness unit and a calculating unit, one end of the wiring harness unit is connected with the wiring harness of the laser sensor receiving part 7 and the grid-containing sensor movable grid plate 4, the other end of the wiring harness unit is connected with the calculating unit, and the calculating unit is connected with the liquid crystal display 11 through wires.
Preferably, the horizontal adjusting knob 10 comprises a large section and a small section connected with the large section; the large section is in threaded connection with the frame 3, the small section is sleeved with a reset spring, and a gap is reserved between the reset spring and the base 8.
Preferably, the top surface of the base 8 is provided with an elastic layer, which is in contact with the cover. .
Preferably, the base 8 comprises:
the first seat and the second seat are mutually perpendicular, the first seat is parallel to the Z direction and is in sliding connection with the cover body, and the second seat is parallel to the X direction and is in contact with the vertical adjusting part 9;
and the third seat is fixed on the first seat and is parallel to the X direction and connected with the transmission rod 2.
Preferably, the vertical adjustment part 9 is a knob, and is in threaded connection with the frame 3.
A periodontal pocket detection method comprising the steps of:
When periodontal pocket detection is carried out, the transfer rod 2 is displaced along the X-direction after being subjected to the pushing rod force in the handheld mechanism 1, the relative position of the grid-containing sensor movable grid plate 4 and the grid-containing sensor fixed grid plate 5 is changed, the grid-containing sensor movable grid plate 4 outputs the phase change quantity to a wiring harness unit of a circuit board, the calculating unit of the circuit board calculates the displacement quantity, and the displacement quantity is displayed by the liquid crystal display 11 for a user to read, namely, the depth data of periodontal pocket detection is detected.
Preferably, the method further comprises the following steps:
the laser sensor receiving section 7 receives the pulse laser light emitted from the laser sensor emitting section 6 and outputs a pulse electric signal to the harness unit of the wiring board, and the calculating unit of the wiring board emits a tilt signal to the liquid crystal display 11 according to the pulse electric signal.
Compared with the prior art, the invention has the advantages that:
1. The detection precision of periodontal pocket depth is high: when periodontal pocket detection is carried out, the transfer rod 2 is displaced along the X-direction after being subjected to the pushing rod force in the handheld mechanism 1, the relative position of the grid-containing sensor movable grid plate 4 and the grid-containing sensor fixed grid plate 5 is changed, the grid-containing sensor movable grid plate 4 outputs the phase change quantity to the wiring harness unit of the circuit board, the calculating unit of the circuit board calculates the displacement quantity, and the displacement quantity is displayed by the liquid crystal display for a user to read, namely, the depth data of periodontal pocket detection is detected. Therefore, the visual error can be directly read through the measurement display mechanism.
In the prior art, no better display part is provided for facilitating a doctor to obtain a test result rapidly due to the limitation of the oral cavity environment.
2. Straightness detection function: the straightness detection is carried out in the periodontal probe resetting process (after the probe and the periodontal pocket are separated), so that the accuracy of the probe moving process is improved, and the detection precision is also improved.
Specifically, if tilting occurs, the capacitive sensor moving grid plate 4 and the capacitive sensor fixed grid plate 5 are no longer parallel, resulting in inaccurate detection data.
3. Adjusting function: the grid plate 4 of the capacitive grid sensor is calibrated (a vertical adjusting part 9 and a horizontal adjusting knob 10), so that the accuracy of the probe in the moving process is ensured, and the detection precision is also improved.
4. The straightness detection mechanism, the adjusting mechanism and the transmission mechanism are mutually cooperated, so that the detection precision is further improved. Specific:
The adjusting mechanism calibrates the movable grid plate 4 of the capacitive grid sensor, so that the movable grid plate 4 of the capacitive grid sensor can always receive the induction signal of the fixed grid plate 5 of the capacitive grid sensor, and displacement data output by the movable grid plate 4 of the capacitive grid sensor in the transmission mechanism is more accurate.
The straightness detection mechanism detects the straightness of the transfer rod 2, and ensures that the transfer rod 2 is always parallel to the X axis, so that the grid-containing sensor movable grid plate 4 in the transmission mechanism is always parallel to the grid-containing sensor fixed grid plate 5, the grid-containing sensor movable grid plate 4 can always receive all induction signals of the grid-containing sensor fixed grid plate 5, and displacement data output by the grid-containing sensor movable grid plate 4 in the transmission mechanism are more accurate.
The straightness detection mechanism ensures that the transfer rod 2 is always parallel to the X axis, so that the vertical adjustment part 9 always contacts the base 8, and the return spring is always parallel to the X axis, thereby enabling the vertical adjustment part 9 and the horizontal adjustment knob 10 of the adjustment mechanism to be smoothly adjusted.
Drawings
Fig. 1 is a cross-sectional view of a high-precision periodontal probe.
Fig. 2 is an electrical schematic diagram between a circuit board and components.
The device comprises a 1-handheld mechanism, a 2-transmission rod, a 3-rack, a 4-grid-containing sensor movable grid plate, a 5-grid-containing sensor fixed grid plate, a 6-laser sensor transmitting part, a 7-laser sensor receiving part, an 8-adjusting base, a 9-vertical adjusting part, a 10-horizontal adjusting knob, an 11-liquid crystal display and a 12-circuit board.
Detailed Description
The high-precision periodontal probe and periodontal pocket detection method of the present invention will be described in more detail below with reference to the drawings, in which preferred embodiments of the present invention are shown, it being understood that the invention described herein can be modified by those skilled in the art while still achieving the advantageous effects of the invention. Accordingly, the following description is to be construed as broadly known to those skilled in the art and not as limiting the invention.
1-2, A high precision periodontal probe that eliminates the effects of restrictions on the oral environment, improves the detection precision of periodontal pocket depth, and has good data readability, comprising:
The handheld mechanism 1 is a disposable product in the prior art, comprises a probe, a swing rod and a push rod, and realizes stretching and resetting of the periodontal probe.
From the prior art, it is known that: the probe is hinged with the swing rod, the swing rod is connected with the push rod; the swing rod is hinged with the shell of the handheld mechanism 1. The probe moves along a guide unit within the housing, the guide unit being fixed to the housing.
When the probe works, the probe receives thrust to retreat (move along the X-direction), and the probe pushes the push rod to move along the X-direction through the swing rod.
The push rod can move along the X direction under the action of the swing rod, can extend out of the shell of the handheld mechanism 1, penetrates through the connector, and the transmission rod 2 penetrates through the connector; one end of the connector is fixed on the frame 3, and the other end is detachably connected with the shell of the handheld mechanism 1. The connector is a structure with a through hole, and in the through hole of the connector, the push rod can be contacted with the transmission rod 2.
The frame 3 is a basic structure of the whole device, and supports a transmission mechanism, a straightness detection mechanism and an adjusting mechanism. The frame is made of lightweight materials, and is convenient to carry and use.
The adjustment mechanism for adjusting the position of the grid-holding sensor moving plate 4 fixed on the transfer rod 2 to ensure the measurement accuracy comprises:
and the top surface of the base 8 is provided with an elastic layer, and the elastic layer is contacted with the cover body. Preferably, it comprises:
The first seat and the second seat are mutually perpendicular, the first seat is parallel to the Z direction and is in sliding connection with the cover body, and the second seat is parallel to the X direction and is in contact with the vertical adjusting part 9.
And the third seat is fixed on the first seat and is parallel to the X direction and connected with the transmission rod 2.
A horizontal adjustment knob 10 movable in the X direction to adjust the position of the transfer lever 2 in the X direction, which includes a large section, a small section connected to the large section; the large section is in threaded connection with the frame 3, the small section is sleeved with a reset spring, and a gap is reserved between the reset spring and the base 8.
And one end of the return spring is fixed on the large section, and the other end of the return spring is fixed on the base 8.
A vertical adjustment part 9 which is movable in the Z direction to adjust the position of the transfer lever 2 in the Z direction, is connected to the bottom surface of the frame 3, and is in contact with the base 8; which may be a knob, is screwed to the bottom surface of the frame 3.
The transmission mechanism comprises a transmission rod 2, a grid-containing sensor movable grid plate 4 and a grid-containing sensor fixed grid plate 5.
The transmission rod 2 is detachably connected with the push rod of the handheld mechanism 1 through a connector, extends along the X direction, and one end of the transmission rod passes through the frame 3 and the other end of the transmission rod is fixed on the base 8 of the adjusting mechanism.
Specifically, a window is formed in the frame 3, through which the transmission rod 2 passes, and the transmission rod 2 moves in the Z direction in the window to adjust or tilt the position.
A grid-holding sensor movable grid plate 4 fixed on the transmission rod 2;
and the grid-containing sensor fixing plate 5 is fixed on the inner bottom surface of the frame 3.
After the relative position of the grid sensor moving plate 4 and the grid sensor fixed plate 5 fixed on the frame 3 changes, the computing unit obtains the detection depth of the periodontal probe.
The emitter of the grid-holding sensor moving plate 4 is loaded with an excitation signal, and the excitation signal generating device is fixed on the circuit board.
The emitter electrode on the movable grid plate 4 of the capacitive grid sensor is excited by the loading excitation signal, and the reflecting electrode on the fixed grid plate 5 of the capacitive grid sensor generates the induction signal, so that the receiving electrode acquires the induction signal and sends displacement data to the computing unit. Specifically, the calculation unit converts the displacement data into the depth of insertion of the probe into the periodontal pocket according to the structural coefficient. Periodontal probe depth is the final data.
From the prior art, it is known that: the main function of the capacitive grating sensor is to convert the mechanical displacement into the phase change of the electric signal, and then send the phase change to a measuring circuit for data processing. The structure of the capacitive grating sensor comprises a movable grating plate and a fixed grating plate. The movable grid plate comprises an emitter electrode and a receiving electrode, and the fixed grid plate comprises a reflecting electrode. The reflective electrode and the emitter electrode and the receiving electrode form a flat capacitor respectively. By applying n-phase excitation signals on the emitter, the reflector reflects the signals to the receiver, and the amplitude of the induction signals of the receiver is not greatly changed along with the movement of the movable grid plate, and the phase change is in a certain function relation with the displacement.
The straightness detection mechanism is used for detecting the straightness of the periodontal probe in the resetting process, and comprises a laser sensor transmitting part 6 and a laser sensor receiving part 7 which are oppositely arranged along the Y direction and are positioned on different sides of the transmission rod 2.
The laser sensor emitting portion 6 is fixed to an inner front wall (one side in the Y direction) of the chassis 3, and the laser sensor receiving portion 7 is fixed to an inner rear wall (the other side in the Y direction) of the chassis 3.
When the transfer lever 2 is tilted, the laser sensor receiving portion 7 receives the pulse laser light emitted from the laser sensor emitting portion 6 and outputs a pulse electric signal to the wiring board.
A cover detachably mounted to the chassis 3, on which the liquid crystal display 11 and the wiring board 12 are mounted;
the wiring board 12 integrates the laser sensor receiving portion 7, the wiring harness of the grid sensor moving grid 4.
The circuit board comprises a wiring harness unit and a calculating unit, one end of the wiring harness unit is connected with the wiring harness of the laser sensor receiving part 7 and the grid-containing sensor movable grid plate 4, the other end of the wiring harness unit is connected with the calculating unit, and the calculating unit is connected with the electric wire of the liquid crystal display 11.
The working principle of the high-precision periodontal probe is as follows:
When periodontal pocket detection is carried out, the transfer rod 2 is displaced along the X-direction after being subjected to the pushing rod force in the handheld mechanism 1, the relative position of the grid-containing sensor movable grid plate 4 and the grid-containing sensor fixed grid plate 5 is changed, the grid-containing sensor movable grid plate 4 outputs the phase change quantity to the wiring harness unit of the circuit board, the calculating unit of the circuit board calculates the displacement quantity, and the displacement quantity is displayed by the liquid crystal display for a user to read, namely, the depth data of periodontal pocket detection is detected.
The user adjusts the position of the grid sensor moving plate 4 by respectively adjusting the horizontal adjusting knob 10 and the vertical adjusting part 9, so that the grid sensor moving plate 4 can always receive the induction signal of the grid sensor fixed plate 5, and the measurement accuracy is ensured.
The straightness detection mechanism is used for detecting straightness of the periodontal probe in the resetting process, if deviation (inclination) occurs, the laser sensor receiving part 7 outputs pulse electric signals to the wiring harness unit of the circuit board, and the calculating unit of the circuit board sends 'inclination' signals to the liquid crystal display according to the pulse electric signals, namely, the liquid crystal display is driven by the circuit board to inform a user.
Specifically, if deviation occurs, inaccurate detection data can be caused, and the problem of periodontal pocket lesion is missed in misjudgment.
Wherein, the deviation means that the transmission rod 2 is inclined, namely, the transmission rod 2 is not parallel to the X axis any more, the transmission rod 2 is close to one end of the hand-held mechanism 1, and the height is Z1; the transfer lever 2 is inclined at a height Z2, Z1 and Z1 which are not equal to each other, near one end of the base 8.
Among the reasons why the difference "deviation" causes the transfer lever 2 to be no longer parallel to the X-direction include: on the one hand, during the detection, the thrust force exerted by the transfer lever 2 acts on the return spring, and when the thrust force is too large, the return spring tilts, thereby causing the transfer lever 2 to tilt. On the other hand, long-term relative movement causes slight wear and falling oscillations occur during use.
And returning to normal use after manual adjustment. Once other products are in error, the products have no adjusting function, cannot be understood to be recovered for use, and need after-sales maintenance.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the invention without departing from the scope of the technical solution of the invention, and the technical solution of the invention is not departing from the scope of the invention.
Claims (4)
1. A high precision periodontal probe, comprising:
a hand-held mechanism (1) for detecting periodontal pockets, comprising a push rod movable in the X direction;
the drive mechanism for acquire the detection depth signal of periodontal probe, it includes:
the transmission rod (2) passes through the connector and can be contacted with the push rod of the handheld mechanism (1) and extends along the X direction, one end of the transmission rod passes through the frame (3), and the other end of the transmission rod is fixed on the base (8) of the adjusting mechanism; the push rod passes through the connector; one end of the connector is fixed on the frame (3), and the other end of the connector is detachably connected with the shell of the handheld mechanism (1);
the capacitive grating sensor movable grating plate (4) and the capacitive grating sensor fixed grating plate (5), the capacitive grating sensor movable grating plate (4) is fixed on the transmission rod (2), and the capacitive grating sensor fixed grating plate (5) is fixed on the inner bottom surface of the frame (3);
Wherein, adjustment mechanism for reset transmission pole (2), it still includes:
A horizontal adjusting knob (10) which can be screwed along the X direction to adjust the position of the transmission rod (2) along the X direction and is in threaded connection with the frame (3);
a vertical adjustment part (9) which can move along the Z direction to adjust the position of the transmission rod (2) along the Z direction, is connected with the bottom surface of the frame (3) and is contacted with the base (8);
and a return spring connecting the base (8) and the horizontal adjustment knob (10);
straightness accuracy detection mechanism for detect the straightness accuracy of periodontal probe in the reset process, it includes:
A laser sensor transmitting part (6) and a laser sensor receiving part (7) are oppositely arranged along the Y direction and are fixed on the inner wall of the frame (3);
a cover body detachably mounted on the frame (3) and provided with a liquid crystal display (11) and a circuit board (12);
the circuit board (12) comprises a wiring harness unit and a calculating unit, one end of the wiring harness unit is connected with the wiring harness of the laser sensor receiving part (7) and the grid-containing sensor movable grid plate (4), the other end of the wiring harness unit is connected with the calculating unit, and the calculating unit is connected with a liquid crystal display (11) through wires;
The horizontal adjusting knob (10) comprises a large section and a small section connected with the large section; the large section is in threaded connection with the frame (3), the small section is sleeved with a return spring, and a gap is reserved between the small section and the base (8).
2. The high-precision periodontal probe according to claim 1, characterized in that the top surface of the base (8) is provided with an elastic layer, which is in contact with the cover.
3. The high precision periodontal probe according to claim 1, characterized in that the base (8) comprises:
The first seat and the second seat are mutually perpendicular, the first seat is parallel to the Z direction and is in sliding connection with the cover body, and the second seat is parallel to the X direction and is in contact with the vertical adjusting part (9);
and the third seat is fixed on the first seat and is parallel to the X direction and connected with the transmission rod (2).
4. The high-precision periodontal probe according to claim 1, characterized in that the vertical adjustment part (9) is a knob, which is screwed with the frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410225098.4A CN117918990B (en) | 2024-02-29 | 2024-02-29 | High-precision periodontal probe and periodontal pocket detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410225098.4A CN117918990B (en) | 2024-02-29 | 2024-02-29 | High-precision periodontal probe and periodontal pocket detection method |
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| Publication Number | Publication Date |
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| CN117918990A CN117918990A (en) | 2024-04-26 |
| CN117918990B true CN117918990B (en) | 2024-09-24 |
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| CN202410225098.4A Active CN117918990B (en) | 2024-02-29 | 2024-02-29 | High-precision periodontal probe and periodontal pocket detection method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495963A (en) * | 2019-09-20 | 2019-11-26 | 深圳索感科技有限公司 | A kind of digital depth of pocket measuring device |
| CN211094932U (en) * | 2019-09-20 | 2020-07-28 | 深圳索感科技有限公司 | Digital periodontoclavia depth measuring device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791940A (en) * | 1987-02-02 | 1988-12-20 | Florida Probe Corporation | Electronic periodontal probe with a constant force applier |
| JP2009268614A (en) * | 2008-05-02 | 2009-11-19 | Advance Co Ltd | Depth measuring instrument of periodontal pocket and depth measuring system of periodontal pocket |
| CN216676011U (en) * | 2021-11-05 | 2022-06-07 | 桂林市啄木鸟医疗器械有限公司 | Periodontal pocket depth measuring device and dental therapeutic apparatus |
| CN220256565U (en) * | 2022-11-18 | 2023-12-29 | 埃客(上海)医用设备有限公司 | Constant force tooth Zhou Tance ware |
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2024
- 2024-02-29 CN CN202410225098.4A patent/CN117918990B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495963A (en) * | 2019-09-20 | 2019-11-26 | 深圳索感科技有限公司 | A kind of digital depth of pocket measuring device |
| CN211094932U (en) * | 2019-09-20 | 2020-07-28 | 深圳索感科技有限公司 | Digital periodontoclavia depth measuring device |
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| CN117918990A (en) | 2024-04-26 |
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