JP6006540B2 - Medical chair - Google Patents

Description

  The present invention relates to a medical chair that holds a patient in need of oral treatment or the like.

  Treatment in and around the oral cavity is done by leaving the patient to a reclining chair (medical chair) and adjusting the tilt angle of the backrest part and headrest part of the reclining chair so that the patient is seated or supine. Often. The description regarding such a reclining chair is, for example, in the following patent document.

JP 2009-22495 A

  Patent Document 1 proposes a dental treatment chair having a headrest portion provided with a notch so as not to compress the patient's cervical spine even when the headrest portion (antodai) is tilted and the patient's top of the head is lowered. doing.

  If such a dental treatment chair is used to lower the patient's top of the head downward, the oral cavity portion is relatively upward, which facilitates dental treatment and the like. However, as in this dental treatment chair, it is still difficult to directly visually observe the inner lining of the maxillary dentition simply by tilting the patient's head. In other words, as long as a conventional medical chair is used, the surgical field such as the inner back side of the maxillary dentition cannot be clearly seen without forcing the operator to take an unreasonable posture.

  The present invention has been made in view of such circumstances. Unlike conventional medical chairs, it is relatively easy for a surgeon such as a doctor to perform an operation on the oral cavity of a patient. An object of the present invention is to provide a medical chair capable of clearly viewing the surgical field such as the back.

  As a result of extensive research and trial and error, the inventor has come up with the idea that the back (backrest) holding the patient's upper body can be tilted further than the horizontal state. Based on this, the present invention described below has been completed.

That medical chair of the present invention includes a seat for holding the buttocks, and the backrest portion for holding the upper half of the body, and the headrest portion for holding the head, a medical chair comprising said backrest portion The maximum tilt angle of 4-10 ° can be tilted further downward from the horizontal position independently of the seat portion while keeping the seat portion in a substantially horizontal state. The headrest portion can be tilted further downward with respect to the backrest portion independently of the backrest portion, and the seat surface height of the seat portion can be increased while keeping the seat portion substantially horizontal. An elevating device for adjustment is provided .

  Since the backrest portion of the medical chair of the present invention tilts further downward than the horizontal position, the operator can easily visually observe the oral cavity of the patient who is supine on the medical chair, particularly the inner deep part of the upper jaw. become able to. Therefore, according to the medical chair of the present invention, it is possible to clearly see the operative field, which has been difficult to observe so far, without imposing a burden on the operator or patient.

Note that whether or not the backrest portion is tilted downward from the horizontal position is determined by comparing a straight line connecting the upper and lower central ends of the side surface of the backrest portion with a horizontal line. The horizontal position (horizontal line) is a position (parallel line) parallel to the floor on which the medical chair is installed. The measurement of the maximum inclination angle of the backrest portion in the present specification is performed in the same manner.

It is a perspective view which shows a mode that the orthodontic chair which is one Example of this invention tilts. It is a schematic diagram which shows a mode that the patient is lying on the orthodontic chair.

  One or two or more components arbitrarily selected from the present specification may be added to the above-described components of the present invention. Which embodiment is the best depends on the target, required performance, and the like.

  The medical chair of the present invention includes at least a seat portion and a backrest portion. The backrest portion may be tilted independently of the seat portion, or may be tilted in conjunction with the seat portion. Even if the backrest portion is tilted, it is preferable that the seat surface of the seat portion is substantially horizontal because the patient's body is stably held.

  According to the inventor's research, the maximum tilt angle at which the backrest portion tilts downward with respect to the horizontal position is preferably 3 to 10 °, and more preferably 4 to 8 °. If the maximum tilt angle is too small, the range of the operative field that can be clearly seen becomes narrow, and if the maximum tilt angle is too large, the burden on the patient increases.

  The medical chair of the present invention includes, in addition to the backrest portion and the seat portion, a headrest portion provided on the upper front end side of the backrest portion, a legrest portion provided on the lower front end side of the seat portion, and further below the legrest portion. You may have a footrest part etc. which are provided in the front end side.

  It is more preferable that the headrest portion provided on the front end side of the backrest portion is tilted downward with respect to the backrest portion. By the cooperation of the tilting of the backrest part and the tilting of the headrest part, the surgical field in the back part of the oral cavity can be easily seen and appropriate treatment can be performed more efficiently.

  It is preferable that the medical chair of the present invention further includes an elevating device that adjusts the seat surface height of the seat portion. As a result, the relative position between the patient and the operator can be easily changed, and the operator can clearly see the appropriate operative field.

  The medical chair of the present invention is suitable for treatment in the oral cavity, particularly dental treatment, regardless of the type or field of treatment as long as it is used for extending the clear vision range of the surgical field.

  Note that tilting of the backrest or the like and fixing at a predetermined angle can be easily realized by using a well-known reclining mechanism or an improved mechanism thereof.

  FIG. 1 shows an orthodontic chair C used for orthodontics, which is an example of the medical chair of the present invention, and FIG. 2 shows a patient lying on the orthodontic chair C. FIG. The orthodontic chair C includes a headrest portion 11, a backrest portion 12, a seat portion 13, and a legrest portion 14.

  The headrest portion 11 attached to the upper front end side of the backrest portion 12 is linked so as to be tiltable so that it can be fixed to the backrest portion 12 at a desired inclination angle. The backrest portion 12 is linked so as to be tiltable so that the backrest portion 12 can be fixed at a desired tilt angle with respect to the seat portion 13 on the lower tip side. The legrest part 14 attached to the lower front end side of the seat part 13 is also linked so as to be tiltable so that it can be fixed to the seat part 13 at a desired inclination angle.

  More specifically, the backrest portion 12 can be inclined by θ = 6 ° downward from the horizontal position with respect to the seat portion 13. That is, in this embodiment, the maximum inclination angle (θ) of the backrest portion 12 is 6 °. Further, the headrest portion 11 can also be inclined downward relative to the backrest portion 12 from the horizontal.

  The orthodontic chair C includes an elevator 22 (lifting device) between the base 21 and the seat portion 13 that can freely adjust the seating surface height of the seat portion 13.

  The surgeon lies the patient on the orthodontic chair C, adjusts the seat surface height of the seat portion 13 with the elevator 22, and reclines the backrest portion 12 downward from the horizontal. Furthermore, the direction of the headrest part 11 is also adjusted. Thus, by coordinating the tilting of the headrest part 11, the tilting of the backrest part 12, and the raising and lowering of the seat part, the surgical field such as the inner back of the patient's maxillary dentition without forcing the surgeon into an unreasonable posture. Can be seen more widely.

  In addition, if the inclination angle of the backrest part 12 is about 6 °, which is 10 ° or less from the horizontal, the patient does not slide down from the orthodontic chair C. In the case of dental treatment, the patient is rarely held for a long time with a fixed posture. Therefore, even if the patient's top of the head becomes a little lower than the upper body for a short time, there is no significant burden on the patient. Rather, the surgical field, which was difficult to view directly in the past, can now be clearly visualized by the orthodontic chair C of the present embodiment, so that accurate treatment can be performed efficiently, and the patient and the surgery can be performed far more efficiently than before. The burden on the person can be reduced.

C orthodontic chair (medical chair)
11 Headrest part 12 Backrest part 13 Seat part 14 Legrest part

Claims (5)

A sheet portion for holding the buttock;
A backrest portion for holding the upper half of the body,
A headrest for holding the head ;
A medical chair comprising:
The backrest portion can be tilted further downward from the horizontal position independently of the seat portion while keeping the seat portion substantially horizontal, and has a maximum tilt angle of 4 to 10 tilting downward from the horizontal position. ° and
The headrest part can tilt further downward with respect to the backrest part independently of the backrest part,
Furthermore, a medical chair comprising an elevating device that adjusts the seating surface height of the seat portion while keeping the seat portion in a substantially horizontal state . The medical chair according to claim 1, further comprising a legrest portion that can be tilted downward from a horizontal position independently of the seat portion while the seat portion is in a substantially horizontal state. The medical chair according to claim 1 or 2, wherein the maximum inclination angle is 4 to 8 °. The medical chair according to any one of claims 1 to 3 , which is used for dental treatment. The medical chair according to claim 4 , which is used for orthodontics .

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