JPH0228432Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a glass knife maker for cutting ultra-thin sections of morphological tissue specimens for pathology, anatomy, histology, etc.

[Prior art]

Conventionally, a microtome knife made of carbon steel and having a forged and polished sharp cutting edge was used to slice such morphological tissue specimens. It was impossible to slice the specimen with a conventional microtome knife.

[Purpose of invention]

This invention is more advanced than such conventional technology.
A knife that can slice resin-embedded specimens and paraffin-embedded tissues ultra-thinly without causing tissue contraction or distortion during the infiltration and embedding process, and that has a cutting edge that adapts to the unique properties of the tissue, such as hardness and softness. To provide a wide glass knife making device which can be arbitrarily changed.

[Structure of the idea]

In order to achieve the above object, the present invention uses a diamond cutter for glass cutting to cut a cutting line at a certain distance from the edge of the long piece of glass on the glass plate mounting table, and further The glass plate forming the front part of the cutting line is broken by a breaking load applying mechanism, and a glass knife having a cutting blade for slicing the tissue specimen is formed on the broken surface.

[Example] Hereinafter, the present invention will be specifically explained based on the example shown in the attached drawings. Note that FIG. 1 is a front view of a glass knife making device according to the present invention, and FIG. 2 is a plan view thereof.

In the figure, reference numeral 1 denotes a base which is a rectangular flat plate, and a glass plate mounting table 2 is movably attached to the base 1 along one edge thereof. In this embodiment, the glass plate mounting table 2 can be moved by a rack 3 attached to one side of the glass plate mounting table 2, and a pinion 6 attached to the lower end of a rotating shaft 5 having a rotating handle 4 at the upper end. This is done by interlocking with the Note that 7 is a mounting frame that rotatably directs the rotating shaft 5.

Further, the glass plate mounting table 2 has a concave cross section, and a long glass plate 8 is mounted on the flat bottom surface of the table 2 so as to be slidable but prevented from swinging in the lateral direction.

Further, the glass plate mounting table 2 has a terrace part 9 at the front thereof, and a rubber plate 10 whose upper surface is flush with the bottom flat surface of the glass plate mounting table 2 is adhered onto the terrace part 9. .

Reference numeral 11 denotes a cutter reciprocating mechanism installed approximately in the center of the base 1. Glass plate mounting stand 2 on top
A through shaft 13 is movably supported in a direction orthogonal to the moving direction of the through shaft 13, a vertically elongated hole 14 is bored in the mounting frame 12 on the through shaft 13, the base end is fixed to the upper surface of the through shaft 13, and the upper end is vertically elongated. It consists of a moving operation rod 15 protruding from the hole 14, and a cutter mechanism 16 is attached to the tip of the penetrating shaft 13.

In this embodiment, the cutter mechanism 16 has a cutter moving table 17 having a cutting amount adjusting mechanism 16a inside attached to the tip of the through hole 13, and the diamond cutter 19 is raised and lowered from the cutter moving table 17 via a cutter holder 18. It has a structure that supports it freely.
The reciprocating stroke of the penetrating shaft 13 is made long enough for the diamond cutter 19 to cross the glass plate 8 on the glass plate mounting table 2.

20 mounts the cutter reciprocating mechanism 11 on the glass mounting table 2
This is a first glass stopper mounted on the base 1 at a position beyond the direction of movement of the first glass stopper, and serves as a score line setting means. In this embodiment, the stopper 20 is constructed by screwing a bolt 23 onto the tip of the horizontal extension part 22 of a mounting block 21 fixed on the base 1 so as to be able to move up and down, and attaching a stopper block 24 to the lower end of the bolt 23. It is constructed by using one side as a contact surface for the tip of the glass plate 8. With this configuration, the length from the tip of the glass plate 8 to the cut line is set.

25 is disposed in front of the cutter reciprocating mechanism 11, that is, on the front side when seen in the moving direction of the glass mounting table 2,
This is a glass plate clamping mechanism that presses and clamps the glass plate 8 on the glass plate mounting table 2. In this embodiment, the clamp mechanism 25 has a base end of a horizontal extension block 26 fixed to one side wall of the mounting frame 12 of the cutter reciprocating mechanism 11, and a spring-equipped lifting rod 27 is attached to the extension part 26a of the block 26. A lift guide rod 27a is attached, a glass pressing pad 28 is attached to the lower end of the lift rod 27, and a lifting device 29 for the lift rod 27 is attached to the upper end.

Further, 30 is a second glass stopper disposed on the base 1 on the end side when viewed in the direction in which the glass plate mounting table 2 moves, and serves as a glass protrusion amount setting means. The stopper 30 has the base end of an L-shaped plate 31 pivotably attached to the side edge of the base 1,
A screw shaft 32 is screwed onto the other end of the L-shaped plate 31, and the end surface of the screw shaft 32 is used as a glass plate contact surface.

Furthermore, 33 is a breaking load loading mechanism that is disposed between the first glass stopper 20 and the second glass stopper 30 and applies a breaking load to the cantilevered glass plate 8; The proximal end of a hammer support lever 34 is rotatably attached to the base end of the hammer support lever 34, and a glass breaking hammer 36 having a rubber plate 35 attached to its tip is attached halfway to the hammer support lever 34.

In the figure, 37 is a shock absorbing pad that receives the broken glass plate 8, and 38 is a ruler for measuring the amount of movement of the glass plate mounting table 2.

Next, the operation of the glass knife maker for slicing morphological tissue specimens having the above configuration will be described.

First, the tip of the glass plate 8 is brought into contact with the stopper block 24 of the first glass stopper 20 by moving the glass plate mounting table 2, and the glass plate clamping mechanism 25 is driven to elastically press and clamp the glass plate 8. The cutter reciprocating mechanism 11 is driven to make a cut to a constant depth in the glass plate 8 with the diamond cutter 19. The stopper block 24 of the first glass stopper 20 is raised and the glass plate clamping mechanism 25 is opened. Then, the glass plate mounting table 2 is moved again until the glass plate 8 is stopped by the second glass stopper 30. The glass plate mounting table 2 is further moved so that its tip is aligned with the right end of the stopper block 24 of the first glass stopper 20. The glass plate clamp mechanism 25 is operated to fix the glass plate 8 again. The first glass stopper 20 is also lowered to clamp the glass plate 8. Then the second
Open the glass stopper 30 and remove the shock absorbing pad 3.
7 is placed directly below the tip of the glass plate 8. Then, the hammer support lever 34 is rotated, and the glass plate 8 is broken along the score line by the glass breaking hammer 36. Due to this breakage, the broken glass plate 8
A glass knife having an extremely sharp cut surface is formed along the break line opposite to the cut line.

[Effect of idea]

As described above, the present invention uses a diamond cutter and presses the entire width of the glass plate during cutting and breaking, so that the glass knife has a cutting edge with a sharp cutting surface over the entire width of the glass plate when breaking. is formed. In addition, by changing the position where the cut line made to a certain depth by the screw shaft of the stopper block and the diamond cutter is fixed with the second glass plate stopper, the cutting edge angle can be adjusted to suit the properties of hard and soft tissues. It becomes possible to produce different types of glass knives.

[Brief explanation of drawings]

FIG. 1 is a front view of a glass knife maker for slicing morphological tissue specimens according to the present invention, and FIG. 2 is a plan view thereof. In the figure, 1... base, 2... glass plate mounting stand, 3
...Rack, 4... Rotating handle, 5... Rotating shaft, 6... Pinion, 7... Mounting frame, 8...
...Glass plate, 9...Terrace part, 10...Rubber plate, 1
1...Cut reciprocating mechanism, 12...Mounting machine frame, 1
3... Penetration shaft, 14... Longitudinal hole, 15... Moving operation rod, 16... Cutting mechanism, 16a... Cutting amount adjustment mechanism, 17... Cutting moving base, 18... Cutting holder, 19... Diamond Katsuta, 20...
First glass stopper, 21...Mounting block, 2
2...Horizontal extension part, 23...Bolt, 24...Stopper block, 25...Glass plate clamp mechanism, 26...Horizontal distraction block, 26a...Distraction part, 27...Elevating rod, 27a...Elevating guide rod ,
28...pressing pad, 29...lifting device, 30...
... Second glass stopper, 31 ... L-shaped plate, 32 ... Spiral shaft, 33 ... Breaking load loading mechanism,
34...Hammer support lever, 35...Rubber plate,
36... Hammer for breaking glass, 37... Shock absorbing pad, 38... Ruler.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) A base; (b) A glass plate mounting stand that is movably mounted on the base and supports a long glass plate on its upper surface; (c) A glass plate mounting stand that is mounted in the center of the base and supports the glass plate. a cutter reciprocating mechanism that reciprocates a diamond cutter for cutting a glass plate in a direction perpendicular to the moving direction of the glass mounting table; score line setting means for determining the length from the tip of the glass plate to the cutter score line when the plate advances; glass protrusion amount setting means for positioning the cut line of the glass plate at a position protruding from the edge of the glass plate mounting table; a glass plate clamp mechanism that presses the glass plate on the plate mounting table; (g) a breaking load loading mechanism that is disposed between the cutter reciprocating mechanism and the glass protrusion amount setting means and applies a breaking load to the cantilevered glass plate; A glass knife maker for slicing morphological tissue specimens.