JPH0417350Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention is a micro-instrument that holds a micro-instrument such as a micropipette for processing objects such as cells on the fine movement shaft of a micromanipulator. This invention relates to an attachment for removably attaching a holder.

<Prior art> The conventional method for attaching the above-mentioned micro-instrument holder to the fine movement shaft of a micromanipulator is to sandwich the micro-instrument holder between two plates and tighten the two plates with screws. Another method has been adopted in which a micro-instrument holder is pressed against a predetermined surface by a leaf spring, and the leaf spring is further pressed by a screw.

<Problems to be Solved by the Invention> According to the former conventional method, the effort of turning a screw is required when attaching/removing the micro-instrument holder. In the latter conventional method, by adjusting the shape and strength of the leaf spring, the micro-instrument holder can be supported by the pressing force of the leaf spring alone, and it is also possible to omit the screw. In this case, the shape of the leaf spring becomes complicated, and some type of fixing device is required on the surface against which the micro-instrument holder is pressed, which is disadvantageous in that it is difficult to manufacture.

The present invention has been devised in view of the above, and has a simple structure that allows a micro-instrument holder to be attached and detached with just one touch and reliably. The purpose is to provide a mounting tool for a micro-instrument holder.

<Means for Solving the Problems> In order to achieve the above object, the mounting tool for the micro-instrument holder in the micromanipulator of the present invention is as shown in FIGS. 1 and 2, which are embodiment drawings. First and second surfaces 11 and 12 are formed which are supported by the fine movement axis S of the micromanipulator, extend along the axial direction of the micro-instrument holder H to be mounted, and intersect with each other at a predetermined angle. Attachment body 1 and an elastic body (for example, compression coil spring 21) that is movably supported by this attachment body 1 and that approaches at least one of the first and second surfaces 11 and 12. and at least two pushers 2, 2 along the axial direction of the micro-instrument holder H, which are urged by the pushers 2, 2 to push the micro-instrument holder H into the first and second positions. It is characterized by being constructed so that it can be supported by pressing against both surfaces 11 and 12.

<Function> The micro-instrument holder H can be attached and detached with one touch by displacing the pressers 2, 2 with their outer peripheral surfaces in a direction that resists the pressing force of the elastic body. Micro instrument holder H in attached state
has at least two pressers 2, 2 on both the first and second surfaces 11 and 12 along the axial direction.
The mounting position is stable and securely fixed.

<Example> An example of the present invention will be described below based on the drawings.

FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a sectional view thereof.

An attachment main body 1 is supported via an angle adjustment section 3 at the tip of a fine movement shaft S of the micromanipulator. The angle adjustment unit 3 is for adjusting the angle of the attachment body 1 with respect to the fine movement axis S, and is fixed to the fine movement axis S and also includes a sphere 15 provided at the bottom of the attachment body 1.
A spherical seat is formed to receive the attachment body 1 by loosening the tightening screw 31.
can adjust its posture.

A groove 13 having a uniform U-shaped cross section with both ends open is formed along the side surface of the attachment body 1, and a groove 13 is formed on the lower surface of the groove 13.
Two spherical pressers 2, 2 are arranged in the direction in which the presser 3 extends. Two surfaces within this groove 13 excluding the lower surface are first and second surfaces 11 for positioning and supporting the micro-instrument holder H, respectively, as described later.
and 12.

Each presser 2 is slidably inserted into a cylindrical hole formed in a set bolt-like support 21, and a compression coil spring 22 in the cylindrical hole is inserted.
is elastically pressed upward by. Note that the upward displacement limit of the presser 2 is regulated by making the diameter of the upper end portion of the cylindrical hole slightly smaller than the diameter of the presser 2. Attachment to the attachment main body 1 is performed by attaching the support 2 to the two internal threads 14, 14 formed on the bottom surface of the groove 13, respectively.
For example, the supports 21 and 21 may be fixed with an adhesive or tightened with nuts or the like so that the pressers 2 and 2 are positioned at a predetermined height by screwing in the supports 21 and 21.

The micro-instrument holder H to be mounted holds a micro-instrument 9 such as a micropipette at its tip,
The body has a cylindrical outer circumferential surface. As shown in FIG. 2, the above-mentioned pressers 2, 2 each have
The center is located further away from the second surface 12 by a predetermined amount than the outer circumferential radius of the body of this micro-instrument holder H, and the outer circumferential surface of the body of the micro-instrument holder H is connected to the first While in contact with the second surfaces 11 and 12, the pushers 2, 2 contact the outer circumferential surface of the body and are displaced slightly below their upper displacement limit, causing the compression coil springs 22, 22 to be pushed. The pressure is configured to act on the micro-instrument holder H.

According to the above embodiment of the present invention, by pushing the body of the micro instrument holder H inward through the opening of the groove 13 of the attachment body 1, the pressers 2, 2
is displaced downward, and when the diameter portion of its body is pushed inward from the tops of the pressers 2, 2, the compression coil springs 22,
Due to the elastic force of 22, the body of the micro-instrument holder H is pressed into close contact with the first and second surfaces 11 and 12, so that the micro-instrument holder H is always attached to the attachment body 1 in a constant and stable posture. . The micro-instrument holder H can be easily removed by holding both ends of the micro-instrument holder H and pulling it outward from the groove 13.

Note that the number of pressers 2 may be any number greater than or equal to two, and the number of pressers 2 may be any number greater than or equal to
The angle formed by and 12 is 90° as in the above example.
It does not have to be the same, and as long as the outer circumferential surface of the micro-instrument holder H is pressed against both of these two surfaces by the pressing force of the presser 2, it can be formed at any angle. Further, the shape of the presser 2 is not limited to a spherical shape, and it is of course possible to adopt any shape other than a cylindrical body with a spherical part formed only at the top.

<Effects of the invention> As explained above, according to the invention, the attachment body has first and second surfaces that extend along the axial direction of the micro-instrument holder H to be attached and intersect with each other at a predetermined angle. and a presser element biased by an elastic body in a direction approaching at least one of the first and second surfaces,
At least two pushers are arranged along the axial direction of the micro-instrument holder H, and the micro-instrument holder H is pushed into the first
Since it is configured so that it can be supported by pressing against both the first and second surfaces, the micro instrument holder H can be attached and detached by displacing the presser in a direction that resists the pressing force of the elastic body using its outer circumferential surface, etc. This can be done extremely easily with just one touch. In addition, the micro instrument holder H in the attached state is pressed by the presser at at least two places on both the first and second surfaces along the axial direction, so that the attached posture is always constant and stable, Moreover, it will be strongly supported. Moreover, its manufacture is extremely easy, as it only requires forming a groove in the attachment body and screwing a commercially available plunger element onto one surface of the inside thereof.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, and FIG. 2 is a sectional view thereof. DESCRIPTION OF SYMBOLS 1... Attachment body, 11... First surface, 12... Second surface, 13... Groove, 2... Presser, 21... Support body, 22... Compression coil spring,
S... Fine movement axis of micromanipulator, H...
Micro instrument holder, P...micro instrument.

Claims (1)

[Scope of utility model registration request] A device for removably attaching a holder holding a micro-instrument for processing a workpiece to a fine movement shaft of a micromanipulator, which is supported by the fine movement shaft and along the axial direction of the holder to be attached. ,and,
An attachment body is provided with first and second surfaces that intersect with each other at a predetermined angle, and an attachment body is supported on the attachment body so as to be freely displaceable, and at least one of the first and second surfaces is disposed on at least one of the first and second surfaces. at least two pressers along the axial direction that are biased toward each other by an elastic body, and the pressers press the holder against both the first and second surfaces. 1. A mounting tool for a micro-instrument holder in a micromanipulator, characterized in that the tool is configured to support the micro-instrument holder in a micro-manipulator.