A slice fixing device for preventing slices from falling off

Abstract

The invention discloses a slice fixing device for preventing a slice from falling. The slice fixing device is characterized by comprising a platform and a slice clamp, wherein a slice groove for accommodating the slice is formed in the top of the platform; the slice clamp is connected with the platform and used for fixing the slice in the slice groove; a first surface contact is formed by one side of the slice and the slice clamp; a second surface contact is formed by the other side of the slice and the slice groove; and angles between the contact surface of the first surface contact and the midperpendicular of the slice and between the contact surface of the second surface contact and the midperpendicular of the slice respectively are 30-50 DEG and 35-50 DEG. According to the slice fixing device for preventing the slice from falling, provided by the invention, the plane contact of the slice and the slice groove in the prior art is changed into 45-DEG inclined plane contact; a 45-DEG inclined acting force is applied to the slice through the slice groove contact surface; and the falling problem caused by the upwarp of the slice is effectively avoided through the decomposed acting force in the vertical direction.

Description

technical field [0001] The invention relates to the technical field of slice scanning, in particular to a slice fixing device for preventing slices from falling off. Background technique [0002] When the existing slices are scanned, the slices need to be placed in the slice slots, and the slices are fixed by the slice clamps, and the contact mode between the slices and the slice slots is planar contact. [0003] For example, the Chinese utility model patent whose authorized notification number is CN203875791U discloses a slice clip structure to prevent the slice from lifting. In this patent, the parallel contact between the slice clip and the slice is changed to an inclined surface contact, which can effectively prevent the slice from lifting. [0004] However, in this patent, the other side of the slice and the slice groove are in contact with a plane parallel to the vertical line of the slice, figure 1 It is a schematic diagram of force analysis of the plane contact betw...

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Problems solved by technology

[0004] However, in this patent, the other side of the slice and the slice groove are in contact with a plane parallel to the vertical line of the slice, figure 1 It is a schematic diagram of force analysis of the plane contact between the slice groove and one end of the slice in the patent, as shown in figure 1 As shown, F1 is the force applied by the slice groove to the slice, F2 is the reaction force of the slice to the slice groove, and F1=F2, when the slice groove and the slice are not in absolute parallel contact, it is easy to produce a force that is not in the horizontal direction Force F1', when the direction of action of force F1' is obliquely upward, the slice is easy to lift and cause falling off. At the same time, the lifted slice may also affect the image clarity because the tissues in the slice are not on the same focal plane

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