JP2008178504A - Dental instrument holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a holder corresponding to the number of instruments has to be manufactured when an operator uses not more than five or not less than five instruments since how many instruments are be held by an instrument holder is predetermined in the conventional instrument holder. <P>SOLUTION: The dental instrument holder comprises: a holder main body 31 composed of a rotary shaft 311 attached so as to be inserted to a hole 11 formed on a table 1 to be used by a dentist or an assistant and rotated in a horizontal direction and an instrument receiver 313 attached so as to be rotated to a holder arm 312 attached to the rotary shaft, for supporting the rear end part of the instrument 2 so as to surround it; and an attachment 32 freely detachably attached to the holder main body for supporting the middle part of the instrument together with the holder main body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is an instrument holder for holding an instrument as a dental treatment instrument in a holder provided on a doctor table or an assistant table so that the instrument can be pulled out. The present invention relates to a dental instrument holder that can be increased or decreased.

As a conventional instrument holder, for example, there is an invention disclosed in JP-A-8-289910. The present invention relates to a dental instrument holder in which a dental instrument such as a handpiece or a syringe is arranged on a doctor table or an assistant table, and the holder for holding the instrument is placed on the instrument. An instrument holder technology is disclosed that can be easily changed to either a tray type for holding the instrument in a state where it is held or a hanger type for inserting the instrument.
JP-A-8-289910

  Originally, the instrument holder is easy to put in and out of each instrument according to the dentist's height, sitting height, arm length, etc., the position of the dentist at the time of treatment, the treatment site, etc. However, in the conventional instrument holder described above, an instrument holder for holding an instrument used by a practitioner such as a dentist may be a tray type or a Although it can be easily changed to any of the hanger types, it is only to change the angle of the holder horizontally or upward so that it depends on the position of the dentist at the time of treatment, the treatment site, etc. Is difficult to use, and the number of instruments that can be held in a conventional instrument holder is determined in advance. (The gazette discloses one that can hold five instruments), and if the practitioner uses five or fewer instruments, it takes up unnecessary space, or five When using the above instruments, there is also a problem that a dedicated holder corresponding to the number of the instruments must be manufactured.

  The present invention is intended to solve the above-described problems, and the object of the present invention is to configure the doctor table and the assistant table so that the number of instruments desired by the practitioner can be held and the instrument. The instrument holder can be pointed in any direction, and the instrument holder can be moved in the front-rear direction with respect to the table. The instrument holder can be either tray type or hanger type. The purpose is to provide a dental instrument holder that can be easily changed.

  The dental instrument holder of the present invention achieves the above-mentioned object, and the means of claim 1 is inserted into a hole formed in a table used by a dentist or an assistant and can be rotated horizontally. A holder body for supporting the instrument so as to surround a rear end portion of an instrument comprising an attached rotating shaft and an instrument receiver rotatably attached to a holder arm attached to the rotating shaft; An attachment is detachably attached to the holder main body and includes an attachment that supports an intermediate portion of the instrument together with the holder main body.

  According to a second aspect of the present invention, in the first aspect, the hole formed in the table is formed in a long hole shape, and the rotation shaft is movable in the front-rear direction of the table.

  According to a third aspect of the present invention, in the first aspect of the present invention, the actuator that rotates when the instrument is inserted into the instrument receiver is attached, and the switch that is turned on when the actuator rotates is attached. It is characterized by detecting the presence or absence of instrumentation.

  According to a fourth aspect of the present invention, in the first aspect, the holder arm is provided with a brake shoe, and the brake shoe is brought into sliding contact with the arc-shaped sliding contact surface of the instrument receiver. On the other hand, the brake is always applied.

  According to a fifth aspect of the present invention, in the first aspect of the invention, the attachment supports the tray type formed in a dish shape for supporting the intermediate portion of the instrument and the intermediate portion of the instrument. An attachment comprising a hanger type, wherein the attachment is formed to be exchangeable with respect to the storage space of the instrument receiver.

  According to a sixth aspect of the present invention, in the first aspect, two or more spacers having different inner diameters for receiving the rear of the thick and long instruments and the thin and short instruments can be freely attached to and detached from the storage space of the instrument receiver. It is characterized by being attached to.

  According to a seventh aspect of the present invention, in the first or sixth aspect, the spacer and the attachment are made of heat-resistant and chemical-resistant resin.

  As described above, the present invention makes it possible to rotate the instrument receiver of the holder horizontally with respect to the table, and to rotate the attachment that supports the instrument with respect to the instrument receiver. And by attaching it detachably, the instrument can be operated in a direction that is easy for dentists to use by rotating the instrument in the horizontal and vertical directions. It is possible to attach as many holders as the dentist desires.

  In addition, by making the table to which the instrument receiver is mounted into a long hole, it is possible to move the instrument receiver in the front-rear direction, so that the instrument can be displaced to a more free position for more use. Selfishness improves.

  Furthermore, by providing a means for detecting the insertion / removal of an instrument in the instrument receiver, when the instrument is removed, power is supplied to the instrument, or water supply / air supply is performed. It is possible to perform the operation work quickly by driving the means, and by inserting the instrument, the power supply or the water supply / air supply means can be stopped to prevent malfunction.

  In addition, since the brake is applied to the vertical rotation, once the dentist or the like sets the vertical rotation angle, the rotation angle is fixed, and therefore the rotation angle changes when the instrument is inserted or removed. Can be prevented.

  Further, by facilitating the exchange of the tray type and the hanger type for the attachment that can be exchangeably attached to the instrument receiver, the specification can be changed to the tray type and the hanger type according to the preference of the dentist or the like and the medical treatment form.

  In addition, two or more spacers with different inner diameters that receive the rear of a thick and long instrument and a thin and short instrument are removably attached to the storage space of the instrument receiver. It is possible to support even instruments of such a size, and further, the spacer and the attachment are made of heat-resistant and chemical-resistant resin, so that the hygiene condition is always maintained by steam sterilization or chemical sterilization. It has an effect that it can be maintained.

  In addition, it is possible to change the specifications to the tray type and the hanger type according to the preference of the dentist and the medical treatment form by facilitating the exchange between the tray type and the hanger type for the attachment that can be exchangeably attached to the instrument receiver. It has effects such as.

  The present invention is a dental instrument holder in which a holder for placing an instrument is attached to a table so as to be rotatable in a horizontal direction, and the holder itself is rotated in a vertical direction.

Hereinafter, a first embodiment of a tray type dental instrument holder according to the present invention will be described with reference to FIGS.
1 is a table used by a doctor table or assistant, and a desired number of round holes 11 formed in a recess for screwing a holder 3 (hereinafter referred to as a tray type) holding the instrument 2 in a horizontal state. Minutes (five in the drawing) are formed. Then, a projection 311a formed on the male screw of the rotating shaft 311 which is a part of the holder 3 is screwed so as to be rotatable in the left-right direction by a nut 43 via a washer 41 and a spring washer 42 as shown in FIG. ing.

  A power cord from various instruments 2 held in the tray-type holder 3 and a tube 5 for air supply and water supply are introduced into the table 1 through a hole 12 opened in the table 1, and the power cord The tube 5 is introduced into an arm (not shown) that supports the table 1 so as to be movable forward and backward, left and right, and is connected to a power outlet, an intake pipe under the floor, and a water supply pipe. The table 1 in FIG. 1 shows a state where the upper plate 13 is removed. Further, 14 shown in FIG. 2 is a handle for moving the table 1 to a desired position via the arm.

Next, as for the structure of the tray type holder 3, the case where the overall length of the instrument 2 such as an air turbine micromotor or a scaler is long and thick is shown.
The holder 3 includes a holder body 31 that is pivotally supported with respect to the table 1 and an attachment 32 that is detachably attached to the holder body 31.

  The structure of the holder main body 31 will be described. A rotary shaft 311 having a protrusion 311a that is formed in a size that can be inserted into the circular recess 11 having a round hole of the table 1 and that has an external thread formed on the outer peripheral surface, A pair of holder arms 312 having a mounting portion 312 a screwed to a mounting portion 311 b formed on the back side of the rotating shaft 311, and tips of arm portions 312 b formed integrally with the mounting portion 312 a of the holder arm 312. An instrument receiver 313 on which a bearing section 312c formed on the shaft is rotatably supported, a pair of side covers 314 covering a side surface of the instrument receiver 313 and an outer peripheral surface of the disk section 311c of the rotating shaft 311; The spacer 33 is housed in the housing space 313i of the instrument receiver 313.

  A hole 312f for inserting the brake shoe 312d and the pressing member 312e is formed in the arm portion 312b of the holder arm 312, and the hole 312f is formed so that the tip of the brake shoe 312d slightly protrudes from the lower surface of the arm portion 312b. Has been inserted inside.

  The instrument receiver 313 is formed in a cylindrical shape as a whole, and shafts 313a that are supported by the bearing portions 312c of the holder arm 312 are formed on both sides of the instrument receiver 313 and on the outer periphery of the shaft 312a. Is formed with a flange portion 313b to be fitted into the groove portion 314a of the side cover 314. In addition, a notch 313c is formed on the circumferential surface of the cylindrical instrument receiver 313, and an actuator 313e pivotally supported by a pin 313d is accommodated in the notch 313c, and by a projection 313e1 of the actuator 313e. A sensing board 313f to which a switch 313f1 to be turned on / off is attached is attached.

  The actuator 313e is provided with a concave hole 313e2 for rotating counterclockwise by a rear end portion 21 to which the cord or tube of the instrument 2 is attached. A sliding contact surface 313h is formed on the outer periphery of the notch 313c so that the brake shoe 312d is in sliding contact with the brake shoe 312d, and the brake shoe 312d is in sliding contact with the sliding contact surface 313h to brake the rotation of the instrument receiver 313. It is hanging. The actuator 313e is provided with a winding spring 313e3 for urging the spring clockwise in FIG.

  Further, a spacer 33 is inserted on the side of the instrument receiver 313 opposite to the notch 313c. The spacer 33 is formed of a resin made of a resin that is resistant to heat and can withstand high temperatures that can be steam sterilized, and is resistant to chemical sterilization. As shown in FIGS. 4 and 5, the spacer 33 has a large diameter portion 331 and a small diameter portion. A cylindrical body 332 is formed, and a notch 333 is formed along the longitudinal direction. And it inserts in the storage space part 313i from the small diameter part 332 side so that the notch part 333 faces downward. The spacer 33 is formed with a small thickness so that the rear end portion of the instrument 2 such as an air terpin, a micromotor, and a scaler having a large outer diameter and a long length can be inserted. .

  Further, an arcuate collar 313j having an engagement hole 313j1 is formed at the entrance of the cylindrical storage space 313i into which the rear end 21 of the instrument 2 enters, and the arcuate collar 313j is formed. Fitting holes 313j2 into which side roller shafts 324, which will be described later, are fitted, are formed at both ends.

  Then, the sensing board 313f and the actuator 313e are attached to the notch 313c of the instrument receiver 313, and the bearing section 312c is rotated while being pivotally supported by the shaft 313a in a state where the left and right holder arms 312 are screwed to the rotating shaft 311. The shaft 311 is fitted into the notch 313c. Next, the flange portion 313 b of the instrument receiver 313 is fitted into the groove 314 a of the groove 314 of the left and right side covers 314.

  Next, the structure of the attachment 32 will be described. A heat-resistant resin that can withstand steam sterilization and a chemical-resistant resin that can withstand chemical disinfection is formed in an elliptical saucer shape with upper and lower surfaces opened. Attachment main body 321, front roller shaft 322 supported by a pair of first bearings 321 a formed at the lower end of attachment main body 321, and front roller 323 rotatably supported by front roller shaft 322 A second bearing 321b formed at the rear end of the attachment main body 321; a side roller shaft 324 supported by the first bearing 321a; and a side roller 325 rotatably supported by the side roller shaft 324. And is made up of. Further, a rubber member 324a is attached to the rear end of the side roller shaft 324 so that it can be fitted into the fitting hole 313j2 of the instrument receiver 313 without play.

  The attachment main body 321 engages the engagement protrusion 321c formed on the attachment main body 321 with the fitting hole 313j2 of the instrument reception 313 and the rubber member of the side roller shaft 324 with respect to the instrument reception 313. 324a is elastically fitted into and integrated with the fitting hole 313j2 of the instrument receiver 313.

  The holder 3 configured as described above can be rotated in the left-right direction at the portion of the rotation shaft 311 with respect to the table 1, and the instrument receiver 313 is rotatable with respect to the rotation shaft 311. Since it can also rotate with respect to the direction, the instrument 2 placed on the attachment 32 and inserted into the instrument receiver 313 can be displaced left and right and up and down. The instrument 2 can be directed in a direction suitable for the assistant's treatment. Since the brake shoe 312d attached to the holder arm 312 is in contact with the sliding contact surface 313h of the instrument receiver 313 (see FIGS. 6 to 8), the instrument receiver 313 is attached to the holder arm. Even if it rotates with respect to the bearing portion 312c of 312, it is held at the position where the rotation is stopped by the frictional resistance by the brake shoe 312d.

  In addition, when the instrument 2 is set in the holder 3, it is rotated against the spring force of the winding spring 313e3 attached to the actuator 313e (see FIG. 8). Since the projection 313e1 pushes the switch 313f1 of the sensing board 313f, the switch 313f1 is turned off (see FIG. 8). However, when the instrument 2 is pulled out from the holder 3, the actuator 313e is moved by the spring force of the winding spring 313e3. Returning to the initial position (see FIG. 7), the switch 313f1 is turned on and the instrument 2 is driven.

  Further, since the spacer 33 and the attachment 32 are detachably attached to the holder 31, the spacer 33 and the attachment 32 are removed from the holder 31 when the spacer 33 and the attachment 32 are dirty or when a certain period of time has passed. It becomes possible to maintain a clean state by steam sterilization or chemical disinfection. The attachment 32 is desirably performed with the rollers 322 and 324 removed.

  In the above-described embodiment, the instrument 2 is a thick and long holder 3 (normal size). However, in the case of the instrument 2 'having a short length and a small diameter, the instrument 2 The amount of the 2 ′ tip portion coming out from the tip of the attachment 32 is small, and it becomes difficult to put it in and out of the holder 3. Further, a large gap is formed between the instrument 2 'and the storage space 313i of the instrument receiver 313, and there is a risk of rattling and slipping when the table 1 is moved.

  Therefore, as shown in FIGS. 9 and 10, the tip of the instrument 2 'protrudes forward by replacing the spacer 33' with a thick wall for the instrument 2 'having a short overall length and a small diameter. Thus, even a short and thin instrument 2 'can be easily pulled out and can be held stably. The spacer 33 'for the short and thin instrument 2' has the same shape and the same thickness as the thick and long instrument spacer 33, and the details of the shape of the spacer 33 'are omitted.

  In the case of the instrument 2, the rear end of the instrument 2 is in direct contact with the actuator 313e and the advanced tool substrate 313f is turned on and off, whereas in the case of the instrument 2 ', the bottom is the actuator 313e. Therefore, the spacer 33 slides in the storage space 313i of the instrument receiver 313 in the longitudinal direction when the instrument 2 'is put in and out, so that the rear end of the spacer 33' comes into contact with the actuator 313e. It is desirable to turn on and off the switch 313f1 of 313f.

  In the above-described embodiment, the protrusion 313a of the rotating shaft 313 is inserted into the round hole 11 of the table 1 and screwed, so that the rotating shaft 313 is configured to rotate only. As shown in FIG. 11, a recess for inserting a nut or the like is formed in a long hole shape, and the hole is also formed as a long hole 11 ', so that the holder 3 can be slid in the front-rear direction with respect to the table 1, and is always used. By moving the holder 3 forward so that the instrument 2 can be easily taken out, it is possible to avoid the danger of hitting an adjacent instrument when taking it in and out.

  In the above-described embodiment, the case of the tray-type instrument holder has been described. However, the case of the hanger-type instrument holder will be described with reference to FIGS. Note that the same reference numerals as those in the above-described embodiment denote the same members, and a description thereof will be omitted.

  In this hanger type instrument holder, the holder main body 31 of the holder 3 in the above-described embodiment has the same structure, and can be changed to the hanger type only by changing the portion of the attachment 32.

  That is, the hanger-type attachment 34 has a conical shape in which the opening of the portion connected to the holder body 31 side is formed with a smaller diameter than the tip side, and the notch 341 is formed on the lower surface side. A fitting projection 342 made of a rubber member that is elastically engaged with the engagement hole 313j1 of the instrument receiver 313 is formed in a portion where the notch 341 is formed on the small diameter side. Yes.

  Since the fitting protrusion 342 of the attachment 34 thus configured is engaged with the engagement hole 313j1 of the instrument receiver 313, a hanger-type instrument holder is obtained. Therefore, a tray-type instrument holder is preferred. A dentist or the like who is not able to use it can replace the attachment 32 with the attachment 34 and use it as a hanger-type instrument holder. Also in this embodiment, since the attachment 34 can be easily detached from the instrument receiver 313, steam sterilization, chemical disinfection, and the like can be easily performed.

It is a perspective view which shows one Example of the tray type in the dental instrument holder which concerns on this invention. It is a side view of the state which inserted the instrument same as the above. FIG. 3 is a plan view of FIG. 2. It is a perspective view of the state which isolate | separated the instrument receiver and attachment of a holder. It is a disassembled perspective view of the whole holder. It is sectional drawing which carried out the cross section of the brake shoe part of a holder. It is sectional drawing which carried out the cross section of the actuator part of a holder. It is sectional drawing of the state which inserted the instrument same as the above. It is a disassembled perspective view of the state which added the spacer in another Example. It is sectional drawing of the state which inserted the short instrument same as the above. It is a perspective view of the table in another Example. It is a side view of a hanger type holder. It is a front view same as the above. It is a perspective view of the state which isolate | separated the hanger type attachment of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Table 11 Round hole 11 'Long hole 2 Instrument 3 Holder 31 Holder main body 311 Rotating shaft 312 Holder arm 312d Brake shoe 313 Instrument receiver 313e Actuator 313f Sensing board 313f1 Switch 314 Side cover 32 Tray type attachment 33, 33 ′ Spacer 34 Hanger type attachment

Claims (7)

A rotating shaft that is inserted into a hole formed in a table used by a dentist or an assistant and is rotatably mounted in a horizontal direction, and an instrument receiver that is rotatably mounted on a holder arm that is mounted on the rotating shaft. A holder body that supports the rear end of the instrument consisting of
An attachment that is detachably attached to the holder body and supports an intermediate portion of the instrument together with the holder body;
Dental instrument holder characterized by comprising more. The dental instrument holder according to claim 1, wherein the hole formed in the table is formed in a long hole shape, and the rotation shaft is movable in the front-rear direction of the table. An actuator that rotates when the instrument is inserted into the instrument receiver is attached, a switch that is turned on when the actuator is rotated is attached, and the presence or absence of the instrument is detected. The dental instrument holder according to claim 1. A brake shoe is provided on the holder arm, and the brake shoe is brought into sliding contact with the arc-shaped sliding contact surface of the instrument receiver so that the brake is always applied to the instrument receiver. The dental instrument holder according to claim 1. The attachment is an attachment comprising a tray type formed in a dish shape for supporting an intermediate portion of the instrument, and a hanger type for supporting the intermediate portion of the instrument so as to surround the intermediate portion. The dental instrument holder according to claim 1, wherein the dental instrument holder is formed so as to be exchangeable with respect to the receiving space of the receiver. 2. The dental apparatus according to claim 1, wherein two or more spacers having different inner diameters for receiving the rear of a thick and long instrument and a thin and short instrument are detachably attached to the storage space of the instrument receiver. Instrument holder for. The dental instrument holder according to claim 6, wherein the spacer and the attachment are made of a heat-resistant and chemical-resistant resin.

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