JPH0655613U - Dental suction device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a dental suction device in which the joint portion of a duct member can be easily maintained and can be used in a clean state for a long period of time. [Composition] In a dental suction device having a suction hood at the tip of a duct member that can be bent at a plurality of joints,
A cylindrical member that communicates with the end opening of each pipe that constitutes the duct member and has an axis in a direction orthogonal to the axial direction of the pipe and has one end open and the other end closed is provided at each pipe end. Then, the openings of the cylindrical members at the ends of the adjacent pipes are butted against each other, and the fixed shaft is connected to the shaft center to form a joint. As a result, blood, tooth cutting chips, and the like that are being sucked do not easily adhere to the inside of the joint, cleaning and maintenance of the inside of the joint are easy, and the joint can be used in a clean state for a long period of time. In addition, it has good durability, including joints, and can withstand long-term use.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dental suction device used in a dental treatment room or a laboratory.

[0002]

[Prior art]

 Conventionally, as a dental suction device for suctioning cleaning water in the mouth during oral treatment, blood, tooth scraps, cutting dust during technical work, etc., JP-B-41-1747 and JP-B-41-6634. , Japanese Patent Publication No. 59-44053, Japanese Patent Publication No. 60-57345, and the like. FIG. 4 shows a device described in Japanese Examined Patent Publication No. 60-57345, which has a box-shaped stand 5 connected to an intake / dust collecting device outside the medical office via a duct 9 and a suction hood 6 at its tip. The duct member 7 is attached. The duct member 7 includes a base pipe 71, a first joint 72, a first flexible pipe 73, a first intermediate pipe 74, a second flexible pipe 75, a second intermediate pipe 76, and a third flexible pipe 77. , The fixed pipe 78, the second joint 79, the movable pipe 80, the fourth flexible pipe 81, the third joint 82, the first link mechanism 83, and the second link mechanism 84, and the suction hood 6 is attached to the third joint 82. It is fixed. By operating the duct member 7 with the handle 85, the suction hood 6 can be freely moved to the vicinity of the oral cavity of the patient, the laboratory, and the standby position.

[0003]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional dental suction device, a bellows hose made of soft synthetic resin is used as the flexible pipes 73, 75, 77 in the joint portion of the duct member 7. However, this bellows hose is susceptible to tears along the bellows eyes during long-term use, it takes time to maintain the tears, blood during suction, tooth cutting waste, etc. There is a drawback that it is easy to adhere to the recesses and accumulate, and it is difficult to remove this deposit.

An object of the present invention is to provide a dental suction device in which the joint portion of the duct member can be easily maintained and can be used in a clean state for a long period of time.

[0005]

[Means for Solving the Problems]

 The present invention relates to a dental suction device having a suction hood at the tip of a duct member that can be bent at a plurality of joints. The dental suction device communicates with the end openings of the pipes forming the duct member and the axial direction of the pipe. A cylindrical member is formed at each pipe end with an axis centered in the direction orthogonal to and open at one end and closed at the other end, and the openings of the cylindrical members at adjacent pipe ends are butted. The feature is that a fixed shaft is connected to the shaft center to form a joint.

[0006]

[Action]

 In the present invention, the joint portion of the duct member has a structure in which the openings of the cylindrical member are butted against each other. By relatively rotating the cylindrical members of this joint, the bending angle of the adjacent pipes can be changed to change the overall posture of the duct member, and the suction hood can be moved to an arbitrary position. Since the inner surface of the cylindrical member has no unevenness and communicates with the inside of the pipe, the object to be sucked smoothly passes through the inside of the cylindrical member and is sucked toward the dust collector through the pipe.

[0007]

【Example】

 1 is a perspective view showing a suction device according to an embodiment of the present invention, FIG. 2 is an enlarged view of a joint portion, and FIG. 3 is a longitudinal sectional view of the joint portion.

The dental suction device of the present embodiment has a box-shaped stand 1 to which a duct member 3 having a suction hood 2 at its tip is attached.

The stand 1 communicates with an intake / dust collection device outside the medical office via a suction duct (neither of which is shown), and an electric valve and a suction duct connecting member are provided inside the stand 1 and the outside. Is provided with a main power switch 11 for the intake and dust collecting device.

The duct member 3 includes a base pipe 31 made of an aluminum alloy, a first joint 32a, a first intermediate pipe 33a, a second joint 32b, a second intermediate pipe 33b, a third joint 32c, a suction pipe 34 with a rotary joint, and The bellows hose 35 is made of soft synthetic resin, and the suction hood 2 is attached to the tip of the bellows hose 35. Further, spring stays 36a and 36b are attached between the base pipe 31 and the first intermediate pipe 33a and between the first intermediate pipe 33a and the second intermediate pipe 33b.

As shown in FIGS. 2 and 3, the joints 32 a, 32 b, 32 c of the duct member 3 communicate with the end openings of the pipes 31, 33 a, 33 b, 34 and are orthogonal to the axial direction of these pipes. A cylindrical member 4a, 4b having an axial center in the direction and one end opened and the other end closed is formed at the end of the pipe, and the openings of the cylindrical members 4a, 4b are made of synthetic resin. They are abutted against each other via the seal packing 4c, and are connected to each other by the fixed shaft 4d, the nut 4e, and the knob screw 4f for adjusting the tightening force. The tightening adjusting knob 4f is screwed onto the end of the fixed shaft 4d through a disc spring 4g between the closing surface of the cylindrical member 4a and the members 4a and 4b by tightening the knob screw 4f. The pressure contact force of can be adjusted. By properly adjusting the pressure contact force between the members 4a and 4b by the knob screw 4f, the mutual rotation of the members 4a and 4b operates smoothly, and the seal packing 4c has an appropriate friction at the position where the rotation is stopped. With the holding force, the members 4a and 4b can be stopped, that is, the posture of the duct member 3 can be fixed.

As shown in FIG. 3, the cylindrical members 4a and 4b are manufactured as separate members from the base pipe 31, the intermediate pipes 33a and 33b, and the suction pipe 34, and are connected to each other by fitting or joining. Alternatively, it may be integrally formed at the end of each pipe.

As described above, each of the joints 32a, 32b, 32c is composed of the cylindrical members 4a, 4b, and since there is no uneven portion on the inner surface, it is difficult for blood, tooth cutting waste, etc. to accumulate on the inner surface, and adhesion is prevented. The dirt can be easily cleaned by removing the bolts and nuts and disassembling. Although the duct member is made of aluminum alloy in the above embodiment, it may be made of hard synthetic resin.

[0014]

[Effect of device]

 The present invention has the following effects.

Since the joint portion has a structure in which cylindrical members are abutted against each other, blood during suction, tooth cutting waste, etc. are unlikely to adhere to the inside of the joint portion.

Since the joint portion can be easily disassembled, cleaning and maintenance of the inside of the joint portion are easy.

It can be used in a clean state for a long period of time.

Good durability, including joints, and long-term use.

[Brief description of drawings]

FIG. 1 is a perspective view showing a suction device according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a joint portion of the suction device of FIG.

FIG. 3 is a vertical cross-sectional view of a joint portion of the suction device of FIG.

FIG. 4 is a perspective view showing a conventional suction device.

[Explanation of symbols]

1 stand, 2 suction hood, 3 duct member,
11 main power switch, 31 base pipe, 32
a, 32b, 32c joint, 33a, 33b intermediate pipe, 34 suction pipe with rotary joint, 35 bellows hose, 36a, 36b spring stay, 4a, 4
b cylindrical member, 4c seal packing, 4d fixed shaft, 4e nut, 4f thumb screw, 4g disc spring

Claims (1)

[Scope of utility model registration request] 1. A dental suction device having a suction hood at the tip of a duct member that can be bent at a plurality of joints, the dental suction device being in communication with the end openings of the pipes forming the duct member and the shaft of the pipe. A cylindrical member having an axis in the direction orthogonal to the direction and having one end opened and the other end closed is formed at each pipe end, and the openings of the cylindrical members of the adjacent pipe ends are butted against each other. A dental suction device characterized in that a joint is formed by connecting a fixed shaft through the shaft center.