Please select the most similar patent number from A, B, C and D. Which number is?
A light-emitting dental floss of the present invention comprises a dental floss, an illumination system, and a handle. The dental floss is detachably connected onto the handle. The illumination system comprises a light source system, a circuit system, a switch, and a power system. The light source system is connected to the power system by means of the circuit system. The circuit system and the power system are mounted in the handle. The switch is mounted on the handle. Illumination light emitted from the light source system can illuminate the oral cavity. Specifically, the light-emitting dental floss of the present invention is further designed with an observation window. During use, the process that the dental floss enters a gap between teeth can be directly observed under the illumination of the illumination system, thereby facilitating cleaning and effectively avoiding injuries to gums.
A: A disinfecting lighting system (100), comprising a power source unit (150), a lighting unit (170) and a disinfection unit (200). The lighting unit (170) comprises a lighting bulb (240) and a power source interface (260), the lighting bulb (240) being electrically connected to the power source unit (150) by means of the power source interface (260). The disinfection unit (200) comprises a light projection unit (110), a camera unit (120), a control unit (130) and a storage unit (140), wherein the light projection unit (110), the camera unit (120) and the storage unit (140) are communicatively connected to the control unit (130), and the light projection unit (110) comprises a disinfection light source that may change projection direction. By means of adding a disinfection unit (200) onto the lighting unit of an existing lighting system, an entire indoor item may be scanned, and selected items may be disinfected and sterilized without adding new equipment indoors, which overcomes the defect wherein existing disinfection products may only disinfect fixed positions indoors.
B: Disclosed is a tool for cleaning a gap between teeth, comprising an all-metal dental floss pick and dental floss, wherein the dental floss pick is made of a stainless steel wire and is composed of two parts, including a U-shaped bow and a handle; both ends (1, 2) of the U-shaped bow are provided with a ring slot; two steel wires that make the handle have a gap therebetween at terminal ends thereof and other parts of the two steel wires are tightly attached together; and the dental floss is wound around the ring slots at the two ends (1, 2) of the U-shaped bow, and after winding, the terminal end of the dental floss is clamped in the gap in the middle of the handle and is fixed. The dental floss pick body can be repeatedly used. The all-metal dental floss pick has a smooth surface with a high hardness, is simple in structure, is easy to clean after use, and can be subjected to high-temperature sterilization. The dental floss pick is Y-shaped as a whole, is simple and small in structure, can be flexibly operated and can change the angle when in use, and can also conveniently clean each gap between teeth. The U-shaped bow portion of the dental floss pick is made of a stainless steel wire, has a high rigidity, and when combined with the winding method, ensures that the dental floss has a sufficient tensioning force so as to conveniently remove dietary fibers that are even tightly stuck in the gap between teeth.
C: Disclosed is a visual diagnosis and treatment system (100) with a cavity dilatation device, the system comprising a cavity dilatation mechanism (1), an observation mechanism (2), a circuit system (3), a power source system (104), a control mechanism (5), and a display system (102). The cavity dilatation mechanism (1) includes a dilatation end (11). The dilatation end (11) is arranged at the front end (5-1) of the control mechanism (5) and can dilate a cavity at the front end of the observation mechanism (2) to enlarge the observation field of the observation mechanism (2). The observation mechanism (2) includes an illumination module (21), a lens module (22), a signal processing module (23) and a housing (24). Images and videos observed by the lens module (22) in a light field of the illumination module (21) are processed by the signal processing module (23) and are then output to the display system (102) by the circuit system (3) for displaying. The illumination module (21), the lens module (22) and the circuit system (3) are connected and then mounted in a sealed manner in the housing (24). Since the cavity at the front end of the observation mechanism (2) is dilated, the observation field of the lens module (22) is larger, and the clinical observation effect is better. Using the visual diagnosis and treatment system (100) with a cavity dilatation device, a surgical instrument can be delivered into a body from a sheath (12) so as to perform various surgical operations, such as biopsy sampling, electrotomy, electrocoagulation and ablation, while observing, which is convenient for clinical use.
D: A multi-lens oral cavity observation system (100) is disclosed, comprising a housing (1), a power source (2), an illumination system (3), an observation system (4), an electric circuit system (5) and a switch (6). The observation system (100) comprises at least two cameras (41-2). The cameras (41-2) comprise a close focus lens (41-21) for observing an interior of an oral cavity and a camera (41-22) for capturing a face of a person. A lens switch (61) allows for switching between a working state of the close focus lens (41-21) and a working state of the camera (41-22) for photoing a face of a person, such that the multi-lens oral cavity observation system (100) can photograph an object at a far distance, such as a human face, as well as an interior of an oral cavity at a near distance, and store both an image of the human face and a morphology of the interior of the oral cavity in a display system (41-3) at the same time, thus effectively avoiding confusion of data collected from different subjects. An oral cavity observation system (100) with an identity recognition device is disclosed, comprising a housing (1), a power source (2), an illumination system (3), an observation system (4), an electric circuit system (5), a switch (6) and an identity recognition device (7). The observation system (4) comprises a camera (41-2) for observing, photographing or videoing an interior of an oral cavity. Data collected by the camera (41-2) is processed by a data processing system (41-1) and then transmitted to a display system for display and recording. The identity recognition device (7) can acquire an identity feature of a subject, such as a facial image, fingerprint, iris, etc., thus effectively avoiding confusion of data collected from different subjects.
Answer: B