JP6220691B2 - Handheld slit lamp base - Google Patents

Description

  The present invention relates to a pedestal capable of stably holding and fixing a hand-held slit lamp without overturning when not in use.

A hand-held slit lamp, which is a kind of anterior ocular segment observation device, includes a base, two substantially upright cylindrical bodies, an observation optical unit having a grip unit connected and fixed to the base, and an illumination optical unit. Is a main component (see, for example, Patent Document 1), and thus has a problem that it is unstable and easily falls when not in use.
In order to solve this problem, it is conceivable to form a base with a large area and weight. However, with such a configuration, the size and weight of the base may hinder hand-held operation, As a hand-held slit lamp that requires small size and light weight, it is actually lacking in practicality.
In addition, there is an example where the charger is used as a stand when practically not in use, but a simple charger lacks the holding stability of the hand-held slit lamp in an upright state and falls down with slight vibration or contact. It was real.

Japanese Patent No. 4136620

  The present invention has been made in view of the above-described conventional problems and situations, and provides a pedestal that can be stably held and fixed without overturning an upright state of a hand-held slit lamp when not in use. It is an issue.

  As a result of various studies to solve the above problems, the present inventor has found that a very good result can be obtained if a holder for inserting and holding a part of the base of the hand-held slit lamp is provided on the pedestal. As a result, the present invention has been completed.

That is, according to the present invention, the base portion of the hand-held slit lamp is connected to the lower portion of the observation optical portion of the slit lamp in a substantially L shape, and the lower portion of the illumination optical portion of the slit lamp is substantially L-shaped. A hand-held slit comprising a second base arm pivotally attached to the first base arm at a free end thereof in a state of being connected to each other and mounted on the first base arm A lamp pedestal comprising a holder part having an opening for inserting a part of a base part of a hand-held slit lamp at an upper part on one end side of the pedestal, and a holder from the other end part of the pedestal The above-mentioned problem is solved by a hand-held slit lamp pedestal characterized in that it has a descending inclined seating surface that reaches the inner back of the part .

  According to the present invention, a part of the base portion of the hand-held slit lamp inserted into the holder portion is held and fixed by the holder portion, so that the upright state of the observation optical unit and the illumination optical unit can be stably held and fixed. The fall can be prevented.

Cross-sectional explanatory drawing of this invention base. The perspective explanatory drawing of this invention base. Side surface explanatory drawing of this invention base. The schematic cross-section explanatory drawing which shows the use condition of this invention base. Perspective view of a specific embodiment of the present invention pedestal The front view of the concrete one example of this invention base. The rear view of one specific example of a form of the present invention base. The top view of one specific example of a form of this invention base. The bottom view of one specific example of a form of this invention base. The right view of one specific form example of this invention base. The left view of one specific form example of this invention base. The sectional view on the AA line in the top view of the example of one concrete form of the present invention base.

  Embodiments of the present invention will be described below with reference to the drawings.

  1-3 which show the base of this invention, 10 is a base, The holder part 20 is formed in the one end part 10a side upper part. The holder portion 20 has a base portion of a hand-held slit lamp inserted therein to be held and fixed, and an insertion opening 20a is formed toward the other end portion 10b of the base 10. Has been.

In FIG. 4 which shows the usage example of the base of this invention, 50 is a hand-held slit lamp, the observation optical part 51 which has the cylindrical grip part 51a in the lower part, the cylindrical illumination optical part 52, and the plate-shaped base Part 53.
The base 53 is connected to the lower part of the observation optical part 51, in other words, the first base arm 53a connected and fixed to the lower part of the grip part 51a, and the lower part of the illumination optical part 52. The second base arm 53b is fixed, and the second base arm 53b is placed on the first base arm 53a while the second base arm 53b is supported on the first base arm 53a at the free end. It is pivotally attached via a shaft.
The base portions of the first base arm 53 a and the second base arm 53 b on the support shaft 54 side are inserted into the holder portion 20 of the pedestal 10 as part of the base portion 53 and are held and fixed.

  As shown in FIGS. 1 and 4, the seat surface of the pedestal 10 is a descending inclined seat surface 11 from the other end 10 b of the pedestal 10 to the inner back of the holder portion 20. The elevation angle of the descending inclined seating surface 11 is preferably 3 to 10 °. The presence / absence of the descending inclined seating surface 11 makes it possible to smoothly move the base 53 of the slit lamp 50 in and out.

  In addition, a metal bottom plate 12 that is heavier than the slit lamp 50 is disposed at the bottom of the base 10. As a result, a more stable holding and fixing force can be obtained, so that the fall of the slit lamp 50 can be prevented more reliably, while the weight of the slit lamp 50 itself does not change (it remains light). There will be no trouble in use.

  Further, an appropriate number of rubber legs 13 are attached to the lower part of the metal bottom plate 12. Thereby, since the sliding of the base 10 is prevented, the slit lamp 50 can be held and fixed more stably, and the detachment from the base 10 can be prevented.

  As shown in FIGS. 1 to 3, the holder portion 20 includes a descending inclined seat surface 11, a first side wall 21, a second side wall 22, and a top wall 23.

The first side wall 21 is formed on the outer peripheral edge of the descending inclined seating surface 11 with a wall height that engages with the first base arm 53a of the slit lamp 50 but does not engage with the second base arm 53b of the slit lamp 50. Has been. Further, the first side wall 21 has a wall height that gradually decreases toward the other end 10b side of the pedestal 10 and eventually disappears before the end 10b. Is also extended.
Since the first base arm 53a of the slit lamp 50 is reliably locked and held by the first side wall 21 as described above, it is prevented from being detached from the pedestal 10 due to an external force from the lateral direction. Since the first side wall 21 does not exist in the other end portion 10b region, the base portion 53 of the slit lamp 50 can be smoothly put in and out.

The second side wall 22 allows the upper side of the first side wall to turn at a predetermined height of the second base arm 53b at a wall height exceeding the thickness of the second base arm 53b of the slit lamp 50. It is formed with a wall length. The predetermined angle for the turning movement is preferably about 60 °.
Due to such a second side wall, the slit lamp 50 needs to be used by shifting the positions of the observation optical unit 51 and the illumination optical unit 52 by a predetermined angle, and the slit lamp 50 is placed on the base 10 in the shifted state. Can be held and fixed.

The top wall 23 is formed on the upper part of the second side wall 22 so as to cover the upper surface of the second base arm 53b of the slit lamp 50, and faces the opening 20a of the holder part 20 so as to face the other end of the pedestal 10. A flange portion 23a that protrudes toward the portion 10b is provided.
The ceiling wall 23 prevents the second base arm 53b from ascending while securing the above-mentioned pivoting movement of the second base arm 53b. Therefore, the slit lamp 50 can be held and fixed more stably. Desorption from 10 can be prevented.

  The specific shapes of the seating surface 11, the first side wall 21, the second side wall 22, and the top wall 23 are the base part 53 of the slit lamp 50 to be inserted and held, that is, the first base arm 53a and the second base. It is selected appropriately according to the shape of the arm 53b.

  Thus, as shown in FIG. 4, a part of the base 53 of the slit lamp 50 when not in use, that is, the first base arm 53a and the first base If the support shaft 54 side of the two base arms 53b is inserted and mounted, the inserted base portion 53 is stably held and fixed by the holder portion 20, so that the slit lamp 50 which is unstable in itself is in an upright state. It can be held stably. Moreover, the entry / exit operation can be performed very easily.

DESCRIPTION OF SYMBOLS 10: Base 10a: One edge part 10b: The other edge part 11: Down inclination seat surface 12: Metal bottom plate 13: Rubber | gum leg part 20: Holder part 20a: Opening part 21: 1st side wall 22: 2nd side wall 23 : Top wall 50: Hand-held slit lamp 51: Observation optical part 51a: Grip part 52: Illumination optical part 53: Base part 53a: First base arm 53b: Second base arm 54: Support shaft

Claims (7)

A base portion of the hand-held slit lamp is connected in a substantially L shape to a lower portion of the observation optical portion of the slit lamp in a substantially L shape; a lower portion of the illumination optical portion of the slit lamp; and A pedestal for a hand-held slit lamp comprising a second base arm pivotally attached to the first base arm at a free end thereof in a state of being placed on the first base arm. , at one end side upper portion of the base includes a holder having an opening for inserting a part of the base of the hand-held slit lamp, and the innermost portion of the holder portion from the other end of the pedestal A pedestal for a hand-held slit lamp, characterized by having a descending inclined seating surface . Handheld slit lamp base according to claim 1, wherein the elevation of the downwardly inclined bearing surface is characterized by a 3 to 10 °. The holder portion is formed on the descending inclined seating surface; the outer peripheral edge of the descending inclined seating surface, and engages with the first base arm of the slit lamp, but does not engage with the second base arm of the slit lamp. A first side wall having a wall height; and having a wall height that is formed on an upper portion of the first side wall and exceeds a thickness of the second base arm of the slit lamp, and the second base arm pivots at a predetermined angle. The pedestal for a hand-held slit lamp according to claim 1 or 2 , characterized by comprising: a second side wall having a wall length that makes it possible; and a top wall formed on top of the second side wall. The first side wall extends beyond the holder part so that the wall height gradually decreases toward the other end side of the pedestal and eventually disappears in front of the end part. The pedestal for a hand-held slit lamp according to claim 3 . The pedestal for a hand-held slit lamp according to claim 3 or 4 , wherein the top wall has a flange that protrudes from the opening 20a toward the other end of the pedestal. The pedestal for a hand-held slit lamp according to any one of claims 1 to 5 , wherein the pedestal has a metal bottom plate that is heavier than the slit lamp. The pedestal for a hand-held slit lamp according to any one of claims 1 to 6 , wherein the pedestal has rubber legs.

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