An anti-fog structure for disposable tooth observation mirror
An observation mirror, a disposable technology, applied in the fields of oral mirror, medical science, diagnosis, etc., can solve the problems of affecting observation, easy condensation of water vapor, mirror fogging of mirrors, etc., to prevent mirror fogging, low cost, and structure. simple effect
Inactive Publication Date: 2006-12-27
SHANGHAI LASER MEDICAL INSTR CO LTD
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Problems solved by technology
Due to the high humidity of the gas in the oral cavity, the temperature is usually higher than the room temperature, and the mirror surface temperature is usually equal to the room temperature. Therefore, the water vapor in the oral cavity is easy to condense on the mirror surface of the mirror, which makes the mirror surface of the mirror fog and affects observation.
Method used
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[0012] Such as figure 1 As shown, the anti-fogging structure of the disposable dental observation mirror of the present invention is composed of a reflector 1 and a handle 2. The handle 2 is provided with a cavity 21 along the axial direction. A mirror accommodating cavity 22 is connected to the front end. The mirror accommodating cavity 22 communicates with the cavity 21 in the handle. The mirror 1 is composed of a circular metal sheet. The metal sheet is sealed and arranged at the opening of the reflector accommodating cavity 22, the outer side of the circular metal sheet is provided with a reflector surface 11, the rear end of the handle 2 is provided with a sealing cover 23, the The reflector 11 and the handle 2 form an angle between 110 degrees and 160 degrees.
[0013] Further, the inner wall of the handle inner cavity 21 and the inner wall of the reflector accommodating cavity 22 are provided with a heat insulation layer.
[0014] Further, a color-changing temperature measu...
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An anti-fogging structure for disposable tooth observation mirror comprising a reflective mirror made by a round metal sheet and a handle having a hollow cavity axially, wherein the front end of the handle connects with a reflective mirror holding receptacle which communicates with the hollow cavity inside the handle, the round metal sheet is sealed on the opening of the reflective holding receptacle, on the external side of the round metal sheet the reflective mirror surface is arranged, the rear end of the handle is provided with a seal cover, the reflective mirror and the handle form an angle between 110 degrees to 160 degrees. The invention introduces heated liquid to the receptacle via a handle making the temperature of the reflective mirror higher than the vapor temperature inside the mouth, thus fogging on the mirror surface is prohibited. It has simple structure, low cost and convenient application.
Description
Technical field: [0001] The invention relates to medical equipment, in particular to a medical auxiliary observation device, in particular to a dental mirror, in particular to an anti-fogging structure of a disposable dental observation mirror. Background technique: [0002] In the prior art, a dental mirror is composed of a mirror and a handle. The mirror is arranged at the front end of the handle. The mirror surface of the mirror and the handle form an angle between 110 degrees and 160 degrees. When in use, the reflector extends into the patient’s mouth, and the dentist adjusts the angle of the reflector to reflect the lighting on the treatment chair to the tooth to be examined and treated, and then perform observation. In order to avoid iatrogenic cross-infection, disposable dental mirrors have been used. Due to the high humidity of the gas in the oral cavity, the temperature is usually higher than room temperature, and the temperature of the mirror surface of the reflector is...
Claims
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IPC IPC(8): A61B1/253
Inventor 曾平
Owner SHANGHAI LASER MEDICAL INSTR CO LTD