JP4733961B2 - Dental treatment equipment - Google Patents

Description

  The present invention relates to a dental medical apparatus provided with a table for placing medicines and instruments or for performing operations such as preparation of medicines so as to be movable to the periphery of a medical table.

  When performing intraoral diagnosis and treatment by sitting or supine on a patient's table, work tables such as tray tables and unit tables are positioned so that the operator can easily work according to the medical condition (medical position). It is desirable to arrange. For this reason, in a dental examination apparatus, a movable arm that can be rotated horizontally is attached to the base of the examination table, a seat plate or a back plate, and the work table is supported at the tip of the movable arm so as to be horizontally rotatable. A system is adopted in which the table can be arranged at an appropriate position around the table. Patent Document 1 discloses an example in which the moving arm is attached to the center of the base behind the medical table so that the table can be moved over a wide range across both sides of the medical table. Patent Document 2 discloses an example in which a moving arm is attached to a side portion of a back plate that is tiltably connected to one end of a seat plate, and the table can be moved at a position close to the patient's head on a medical table. Is disclosed.

By the way, although dental medical treatment is limited to a narrow range in the oral cavity, the surgeon performs medical treatment while taking various positions according to the medical treatment location and the medical treatment mode. The table moving mechanism disclosed in the above-mentioned patent document is intended to smoothly follow such a variety of movements of the surgeon, but accurately corresponds to the fine movements of the surgeon during the medical work. Still had some deficiencies. In particular, in the latter case, due to the mechanism, the range of movement of the table is narrow. In addition, as medical care becomes more precise and versatile, more and more precise movements of the table have been required. Patent Document 3 discloses a dental examination table device in which a unit table is composed of a table main body having an attachment portion to an arm and a movable table base that is slidable relative to the table main body.
JP 2003-325594 A Japanese Patent Laid-Open No. 7-250871 Japanese Examined Patent Publication No. 62-22628

  On the other hand, the unit table in the dental examination table disclosed in Patent Document 3 cannot be positioned on the chest of the patient because the tube is hanging down on the syringe locked on the hanger. The medicines required for treatment may be desirable for treatment if they are located on the patient's chest, so slide the moving table base on which the medicines are placed against the table body with the syringe hanger. Displaceable. However, since this moving table base cannot be slide-locked at any position other than the base position, it cannot be stably set at an appropriate position according to various medical treatment modes. If the hand of the surgeon inside or the hand of the patient is abruptly touched, the moving table base will slide.

  An object of the present invention is to provide a novel dental medical device provided with a table that can be accurately and stably positioned at an appropriate position according to various medical treatment modes.

A dental medical device according to the invention of claim 1 is provided with a medical table and a table supported by a movable arm while maintaining a horizontal state and capable of moving in the vicinity of the medical table. The table is supported on a horizontal table base attached to the distal end of the movable arm so as to be horizontally slidable via a slide mechanism, and any table within a slide range by the slide range restricting means is provided by a lock means. The slide range restricting means is fixed to the lower surface of the table and is fixed to the lower surface of the table. And a restricting member that is formed of a protruding member that is inserted in the longitudinal direction so as to be relatively movable along the longitudinal direction thereof and the relative movement is restricted between the stopper portions. The locking means includes the projecting member, an operating member formed by screwing a male and female threaded portion on the lower end of the projecting member, and an operating lever for operating the operating member, and between the projecting member and the operating member. The slide lock is made by tightly fitting the long hole side portion of the table base, and the slide lock by the tightness is released by the horizontal rotation operation of the lever around the screwed portion. It is characterized by doing so.

  According to the invention of claim 1, since the table is supported on the horizontal table base attached to the tip of the moving arm, the position can be easily set to a position suitable for the medical work by operating the moving arm. Is done. Since the table base is horizontally slidable via the slide mechanism, the position can be set with higher accuracy. In addition, since the lock means enables the slide lock at an arbitrary position within the slide range by the slide range restricting means, the table can be accurately and stably set at an appropriate position, and the mental state of the operator In addition to reducing the burden, the table is prevented from moving even if an unexpected impact is applied.

Further, since the slide range restricting means is configured as described above , the structure is simple, the design or parts cost required for this is small, and the increase in the product cost as a whole can be suppressed. Furthermore, since the parts constituting the upper Symbol slide range limiting means constitutes a part of the locking means, it is possible to simplify the engagement between the table and the table base, the increase in inhibition of further product cost Contributes and improves maintainability. In addition, since the slide lock and its release is made by the lever operation, the operation is simple, such a lever operation in a dense medical work, also lead to the reduction of the mental burden of the operator.

Hereinafter, the best mode of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an example of a dental care apparatus according to the present invention, FIG. 2 is a plan view showing the state of the operation of a table, which is a main part of the dental care apparatus, and FIGS. FIG. 4 is a partially cutaway sectional view taken along line XX in FIG. 3B, FIG. 4A is a locked state, and FIG. 4B is an unlocked state. FIGS. 5A and 5B are the same as FIGS. 4A and 4B of the reference example of the present invention, FIGS. 6A and 6B are the same as FIGS. 4A and 4B of the other reference examples , and FIG. It is a YY sectional view taken on the line in FIG.

  1 and 2, reference numeral 1 denotes a base for supporting a dental examination table 2, and an elevating mechanism 1 a by hydraulic pressure or the like for raising and lowering the examination table 2 is built in the base 1. The table 2 is substantially supported by the lifting mechanism 1a. The medical table 2 includes a seat seat (seat plate) 3 supported by the elevating mechanism 1a, a back plate sheet (back plate) 4 connected to one end of the seat seat 3 so as to be raised and lowered, and a back plate sheet 4 The headrest 5 is attached to the other end so as to be tiltable. The elevating mechanism 1a and the mechanism (not shown) for raising and lowering the back plate 4 are driven and controlled by stepping on a foot controller 6 disposed on the floor. Various instruments 7 such as various handpieces for dental treatment and vacuum syringes are held on the shoulder portion of the back plate sheet 4 so as to be freely drawn out.

  Further, a gargle spitton 8 is installed on the side of the medical table 2, and a dental light column 9a is erected on the base 8a of the spitn 8, and a horizontal hanger capable of horizontal turning and refraction is provided on the column 9a. A dental light 9 is attached via an arm 9b. The spit 8 is for the patient to clean the inside of the oral cavity during dental treatment, and is composed of a faucet 8b, a basin 8c for discharging the gargle, and the like. The dental light 9 irradiates the oral cavity of a patient who sits on the medical table 2 or lies on his back, and is attached to the tip of an articulated hanger arm 9b that can be swiveled horizontally and bent vertically and horizontally. It is positioned at an appropriate position by an operator's manual operation or electric operation, and is irradiated into the oral cavity.

  A mounting bracket 10 a fixed to the swing side of the parallel link mechanism 10 built in the medical table 2 protrudes horizontally on the side of the back plate sheet 4. A swing arm (moving arm) 11 is attached to the tip of the mounting bracket 10a via a vertical support shaft 11a so as to be able to turn horizontally around the vertical support shaft 11a. A horizontal plate-like table base 12 is mounted around the vertical support shaft 11b via a shaft 11b so as to be horizontally rotatable. A tray table 13 is supported on the table base 12 so as to be horizontally slidable via a slide mechanism described later. At this time, the slide direction of the table is preferably moved along the longitudinal direction of the back plate sheet of the dental medical device.

  The tray table 13 is formed with a recess or the like for placing a medicine or a treatment instrument on the surface thereof, and if necessary, various instruments 7 are fed out from the shoulder of the back plate sheet 4 and temporarily locked. A locking portion is provided. A monitor display device 14 constituting a part of the computer monitor device is installed on one side of the tray table 13 (not shown in FIG. 2), and images of the oral cavity, X-ray photographs, and the like. Etc. are appropriately projected. Although not shown, the computer main body constituting the computer monitor device is installed at an appropriate position around the clinical table 2, receives a control signal by a mouse operation, and transmits a video signal based on the received signal to the monitor display device 14. And play it on the display. Note that the installation location of the monitor display device 14 is not limited to one side of the tray table 13, but is a position where the operator and the patient can see simultaneously, such as the base 8 a of the Spitton 8 and the column 9 a for dental light. I just need it.

  The mounting bracket 10 a is horizontally fixed on the swing side of the parallel link mechanism 10 built in the medical table 2, and the tray table 13 supported horizontally via the swivel arm 11 is used to raise and lower the back plate sheet 4. Will move up and down, but it will always remain horizontal. That is, the back plate seat 4 is tiltable about a connecting shaft (not shown) as a fulcrum by driving means (not shown) such as a hydraulic cylinder built in the seat seat 3. The parallel link is formed by a fixed link (piece) including the connecting shaft as a pin, a swing side link (piece) 10b parallel to the link, and two parallel links 10c connecting the two links. Even when the mechanism 10 is configured and the back plate seat 4 is tilted, the parallel link mechanism 10 always maintains the parallel relationship between the swing side link 10b and the fixed side link. Therefore, the tray table 13 supported on the swing side link 10b via the mounting bracket 10a and the swing arm 11 is always maintained in a horizontal state (see the state shown by the solid line and the two-dot chain line in FIG. 1). . As the parallel link mechanism 10 in the dental examination table of the present invention, for example, the one disclosed in Japanese Utility Model Publication No. 62-35469 is desirably employed.

  FIG. 2 shows a state in which the tray table 13 is appropriately set in accordance with the medical treatment mode. The solid line position is the same as that of the so-called 12 o'clock position above the headrest 5 and the two-dot chain line position is the same. In the case where medical care is performed at a position from 9 o'clock to 10 o'clock, each position indicated by a one-dot chain line indicates a state in which the tray table 13 is slid with respect to the table base 12 at each position. The position of the tray table 13 to each position as described above is set by rotating the swing arm 11 around the axis of the vertical support shaft 11a or by moving the tray table 13 with respect to the table base 12 via a slide mechanism described later. Further, the orientation of the tray table 13 is adjusted by rotating the tray table 13 together with the table base 12 around the vertical support shaft 11b.

Next, an example of a mechanism that allows the tray table 13 to slide with respect to the table base 12, a means that regulates the slide range, a slide lock, and a mechanism that releases this will be described. 3 and 4, two parallel rail members 15a and 15a are provided on the upper surface of the table base 12, and two lower rail members 15a and 15a are respectively provided on the lower surface of the tray table 13 so as to face each other. Slide members 15b and 15b are respectively fixed, and a plurality of rolling balls 15c arranged along the longitudinal direction are held at the mating portion between both members 15a and 15b. A slide mechanism 15 for the table base 12 is configured. Both members 15a, a plurality of rolling balls 15c ... gripping between 15b, both members 15a, both the relative sliding and 15b is possible, rattling of the upper and lower both are prevented. Therefore, the tray table 13 can be smoothly reciprocated along the longitudinal direction by using the slide mechanism 15 on the table base 12.

  The table base 12 is provided with a long hole 16a that is parallel to the sliding direction of the slide mechanism 15, and a projection member (regulating member) 16b that is inserted into the long hole 16a so as to be relatively movable on the lower surface of the tray table 13. The projecting member 16b and the hole wall portions 16c at both ends in the longitudinal direction of the long hole 16a constitute a slide range restricting means 16. That is, the protruding member 16b is relatively movable in the long hole 16a, but cannot be moved further when it comes into contact with the hole wall portions 16c at both ends of the long hole 16a. Is slidable with the length range of the long hole 16a as a regulation range.

  A portion of the protruding member 16b that protrudes below the elongated hole 16a is a male screw portion 17a. The male screw portion 17a (protruding member 16b), a female screw member (actuating member) 17b that is screwed to the male screw portion 17a, and the female screw member. Locking means 17 is constituted by an operating lever 17c integrally connected to 17b. 4A, the male screw portion 17a and the female screw member 17b are screwed and fastened, and the side portion of the long hole 16a in the table base 12 is fastened so as to be sandwiched between the protruding member 16b and the female screw member 17b. This shows that the slide of the tray table 13 is blocked (slide lock state). Then, when the operating lever 17c is rotated around the axis of the threaded portion to loosen the female screw member 17b, the side of the long hole 16a formed by the protruding member 16b and the female screw member 17b as shown in FIG. 4B. Tightening of the parts is released, and the tray table 13 can be slid.

  3A and 3B show the state of the operation of sliding the tray table 13, and the operation lever 17c at the solid line position in FIG. 3A is in the locked state corresponding to FIG. 4A. In this state, when the operation lever 17c is rotated to the position indicated by the two-dot chain line, the above-described tightening corresponding to FIG. 4B is released, and the tray table 13 can be slid. From this state, if the tray table 13 is manually operated and slid to the left, the tray table 13 is slid to the desired position shown in FIG. 3B by sliding along the rail member 15a of the slide member 15b. Can be made. When the operation lever 17c is rotated from the two-dot chain line position to the solid line position at this position, the above-mentioned engagement is performed, and the tray table 13 is slide-locked again. Such a slide operation is very simple because it is performed by a rotation operation of the operation lever 17c and a push-pull operation of the tray table 13, and the tray table 13 is accurately set at a desired position. The efficiency of medical work is improved and the mental burden on the surgeon is reduced. Reference numeral 17d denotes a stopper for preventing the operation lever 17c from excessively turning in the loosening direction.

FIG. 5 shows another example of the locking means 17 as a reference example . Since the slide mechanism 15 and the slide range restricting means 16 are the same as described above, the same reference numerals are given to the common parts and the description thereof is omitted. An operating block body (operating member) 17f is pivotally attached to a portion of the protruding member 16b protruding from the long hole 16a via a horizontal support shaft 17e, and an operating lever 17g is integrally connected to the operating block body 17f. Between the lower surface of the tray table 13 and the operation lever 17g, a leaf spring (elastic member) 17h inserted through the long hole 16a is mounted in a bent state, and the operation lever 17g is moved by the restoring elasticity of the leaf spring 17h. The state is always biased downward. The horizontal support shaft 17e (projection member 16b), the operation block body 17f, the operation lever 17g, and the leaf spring 17h constitute a lock means 17.

  FIG. 5 (a) shows a locked state, and the operating block body 17f is always urged upward with the horizontal support shaft 17e as a fulcrum as the operating lever 17g is urged downward by the restoring elasticity of the leaf spring 17h. The side of the long hole 16a in the base 12 is fastened so as to be sandwiched between the projecting member 16b and the operating block body 17f, and the tray table 13 is prevented from sliding (slide lock state). When the operation lever 17g is operated upward against the elastic force of the leaf spring 17h with the horizontal support shaft 17e as a fulcrum, the side of the long hole 16a formed by the projecting member 16b and the operation block body 17f as shown in FIG. 5B. Tightening of the parts is released, and the tray table 13 can be slid. In this state, after the tray table 13 is slid to the desired position, when the upward operation of the operation lever 17g is stopped, the operation block body 17f is again urged upward by the restoring elasticity of the leaf spring 17h, and the slide lock by the above-mentioned engagement is performed. Return to the state. Such an operation is extremely simple as described above. Further, since the tray table 13 is accurately set at a desired position, the efficiency of medical work is improved and the mental burden on the operator is reduced. . In addition to the leaf spring, a compression coil spring or a disc spring washer may be used as a resilient member.

FIG. 6 shows another example of the slide range regulating means 16 and the lock means 17 as another reference example . Since the slide mechanism 15 is the same as described above, the same reference numerals are given to the common parts and the description thereof is omitted. The table base 12 and the one rail member 15a are provided with a single through hole 17i that is a combination of the two. A lock pin 17j is inserted into the through-hole 17i from below, and the lock pin 17j can be operated from the lower part of the table base 12. The lock pin 17j is fitted with a compression spring (elastic member) 17k so as to be elastically mounted between the front side portion and the rail member 15a. The lock pin 17j is caused by the restoring elasticity of the compression spring 17k. Always biased upward. The corresponding slide member 15b is provided with a plurality of lock holes 17m along the longitudinal direction thereof, and the lock holes 17m are formed in a shape that can receive the upper end of the lock pin 17j. The locking means 17 is comprised by the through-hole 17i, the lock pin 17j, the compression spring 17k, and the lock hole 17m.

  FIGS. 6A and 6C show the locked state, and the upper end of the lock pin 17j is fitted into any of the lock holes 17m, and this fitted state is maintained by the upward biasing action accompanying the restoring elasticity of the compression spring 17k. Has been. That is, the sliding action of the slide member 15b and the rail member 15a is prevented by the regulating action of the lock pin 17j and the lock hole 17m, and the tray table 13 is slide-locked. From this state, as shown in FIG. 6 (b), when the lock pin 17j is operated downward against the restoring elasticity of the compression spring 17k, the upper end of the lock pin 17j comes out of the lock hole 17m, and the restricting action of both is exerted. The tray table 13 is slidable. With the lock pin 17j operated downward, the tray table 13 is manually slid to a desired position. When the downward operation of the lock pin 17j is stopped, the upper end of the lock pin 17j fits into the lock hole 17m at the corresponding position. Maintained in a state.

  Stoppers (stopper portions) 16d and 16d are formed at both ends in the longitudinal direction of the slide member 15b, and the upper half of the lock pin 17j (the portion facing the upper side of the rail 17a) also serves as the restriction member 16e. The slide range restricting means 16 is constituted by 16d and the restricting member 16e. That is, in the state of FIG. 6B, the sliding member 15b and the rail member 15a can be slid relative to each other. However, when the regulating member 16e comes into contact with any one of the stoppers 16d, further sliding is prevented. Thus, the tray table 13 is substantially slidable between the stoppers 16d and 16d. Such a slide operation of the tray table 13 is very simple because it is performed by a downward operation of the lock pin 17j and a push-pull operation of the tray table 13, and the tray table 13 is accurately set at a desired position. Therefore, the efficiency of medical work is improved, and the mental burden on the operator is also reduced.

  In the present embodiment, the slide range restricting means 16 and the lock means 17 are formed at the part where the one rail member 15a and the slide member 15b of the slide mechanism 15 are mated, but the present invention is not limited to this, and the tray table 13 and the table base Needless to say, it is possible to provide the slide mechanism 15 between the base 12 and the slide mechanism 15 not directly related to each other. However, if configured as in the present embodiment, the slide range restricting means 16 and the lock means 17 can be formed when the rail member 15a and the slide member 15b are processed, and the increase in the processing man-hours and processing costs can be suppressed. Can do.

  In the above embodiment, the example in which the table is the tray table 13 has been described, but it goes without saying that it may be a unit table. Moreover, although the tray table 13 was shown by the side part of the backplate sheet | seat 4 so that the movement was possible via the turning arm 11, the base 1 of the medical table 2, the machine frame of the seat sheet 3, and also the medical table It is not excluded that what is supported on the floor near the periphery of 2 via a movable arm as appropriate. Furthermore, the movement of the table may be slid in a curve (arc) by using a slide mechanism having a curve (arc) shape instead of a linear shape.

It is a front view which shows an example of the dental treatment apparatus of this invention. It is a principal part of the dental medical device, and is a top view which shows the state of operation | movement of a table. (A) and (b) are bottom views which show the state of operation | movement of a table. FIG. 4 is a partially cutaway cross-sectional view taken along line XX in FIG. 3B, where FIG. 3A shows a locked state and FIG. 3B shows an unlocked state. (A) (b) is a figure similar to FIG. 4 of the reference example of this invention . (A) (b) is the same figure as FIG. 4 of the other reference example , (c) is the YY sectional view taken on the line in (a).

Explanation of symbols

2 Medical table 11 Rotating arm (moving arm)
12 Table base 13 Tray table (table)
15 Slide mechanism 16 Slide range restricting means 16a Long hole 16b Protruding member (regulating member)
16c hole wall (stopper part)
16d Stopper (stopper part)
16e Upper half of lock pin (regulating member)
17 Locking means 17a Male thread portion 17b Female thread member (actuating member)
17c Operation lever 17e Horizontal support shaft 17f Actuating block (actuating member)
17g Operation lever 17h Leaf spring (elastic member)
17i Through hole 17j Lock pin 17k Compression spring (elastic member)
17m Lock hole

Claims (1)

In a dental treatment apparatus comprising a medical table and a table supported by a moving arm while maintaining a horizontal state and movable in the vicinity of the medical table,
The table is supported on a horizontal table base attached to the tip of the moving arm so as to be horizontally slidable via a slide mechanism, and at any position within the slide range by the slide range restricting means by the lock means. It is possible to slide lock ,
The slide range restricting means includes a stopper portion comprising both end hole walls of a long hole provided in the table base in parallel with the slide direction, and is fixed to the lower surface of the table along the longitudinal direction in the long hole. It is composed of a restricting member made of a protruding member that is inserted so as to be relatively movable and the relative movement is restricted between the two stopper portions.
The locking means includes the projecting member, an operating member formed by screwing a male and female screw portion on the lower end of the projecting member, and an operation lever for operating the operating member. The slide lock is made by tightening the long hole side part of the table base in between,
A dental medical device characterized in that the slide lock by the tightening and the release thereof are performed by a horizontal rotation operation of the lever around the screwing portion .

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