| Suction tip for dental treatment -> Monitor Keywords |
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Suction tip for dental treatmentRelated Patent Categories: Dentistry, Apparatus, Having Suction OrificeSuction tip for dental treatment description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070196783, Suction tip for dental treatment. Brief Patent Description - Full Patent Description - Patent Application Claims
REFERENCE TO RELATED APPLICATION [0001] This application is a continuation-in-part of Ser. No. 11/358,129, filed Feb. 22, 2006, now U.S. Pat. No. ______. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The invention relates to a suction tip for dental treatment detachably attached to an end portion of a suction tube of a vacuum device. [0004] 2. Description of the Related Art [0005] In dental treatment, a vacuum device is used for sucking saliva and so on in an oral cavity of a patient to remove these from the oral cavity. A cylindrical suction tip made of silicone rubber is attached to an end portion of a suction tube of the vacuum device so that the end portion of the suction tube does not directly touch the gingiva or oral cavity mucosa of a patient. [0006] The relevant technology is described in the Japanese patent application publication Nos. 2005-13394 and 2004-321710 and the Japanese utility model application publication Nos. sho 58-124117 and hei 6-36616. [0007] However, although made of a rubber material such as silicone rubber, the conventional suction tip for dental treatment sometimes causes a patient discomfort such as an uncomfortable feeling or pain when its end portion touches the gingiva or oral cavity mucosa of the patient. [0008] It is possible to use soft silicone rubber as a material of the suction tip for dental treatment, but this causes a problem that the entire strength of the suction tip reduces to cause it deformation easily, making a suction operation and an attachment operation to the suction tube difficult. SUMMARY OF THE INVENTION [0009] The invention provides a suction tip for dental treatment having a cylindrical base portion made of a first silicone rubber and configured to receive a suction tube, a cylindrical end portion cut obliquely and made of a second silicone rubber, the cylindrical end portion being permanently connected with the cylindrical base portion and a flavoring cover detachably attached at least around the cylindrical base portion, wherein a penetration index of the second silicone rubber is larger than a penetration index of the first silicone rubber. [0010] With the suction tip for dental treatment of the invention, there is much less possibility of causing a patient discomfort such as pain when its end portion touches the gingiva or oral cavity mucosa of the patient, and further the entire strength of the suction tip is secured to facilitate a suction operation or an attachment operation to a suction tube. [0011] Furthermore, since the suction tip has a flavoring cover attached to it, flavors spreading from the cover give comfort to a patient. Since this flavoring cover is detachable, it is changed for each of patients, thereby being kept sanitized. BRIEF DESCRIPTION OF THE DRAWINGS [0012] FIG. 1 is a perspective view of a suction tip for dental treatment of a first embodiment of the invention. [0013] FIG. 2 is a cross-sectional view of the suction tip for dental treatment of the first embodiment of the invention along its longitudinal direction. [0014] FIGS. 3A and 3B are perspective views of a flavoring cover attached to the suction tip for dental treatment of the first embodiment of the invention. [0015] FIG. 4 is a perspective view of a suction tip for dental treatment of a second embodiment of the invention. [0016] FIG. 5 is a cross-sectional view of the suction tip for dental treatment of the second embodiment of the invention along its longitudinal direction. [0017] FIG. 6 is a perspective view of a suction tip for dental treatment of the first embodiment of the invention. DETAILED DESCRIPTION OF THE INVENTION [0018] A suction tip for dental treatment of a first embodiment of the invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of this suction tip for dental treatment 1, and FIG. 2 is a cross-sectional view of the suction tip 1 along its longitudinal direction. [0019] The suction tip for dental treatment 1 has a cylindrical shape as a whole, of which a front end portion 2a of the cylinder is cut obliquely and a back end portion is cut vertically, forming a back end opening portion 3 and a front end opening portion 4. The front end portion 2a which is to touch the gingiva or oral cavity mucosa of a patient is made of soft silicone rubber, and a remaining cylindrical base portion 2b continuing to this front end portion 2a is made of hard silicone rubber. 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