CN2441132Y

CN2441132Y - Sample positioner for pathological microtome

Info

Publication number: CN2441132Y
Application number: CN 00264849
Authority: CN
Inventors: 杨勋
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-14
Filing date: 2000-12-14
Publication date: 2001-08-01
Anticipated expiration: 2010-12-14

Abstract

The utility model discloses a sample positioner for pathological microtomes, which is composed of a standard face, a standard face bracket, a bracket rotary shaft or a bracket sleeve, a spring which is arranged in the standard face bracket or the bracket sleeve. The standard face which is made of transparent material is connected with the standard face bracket, the standard face at the work position is parallel with a blade of a microtome and a tangent plane of a paraffin mass which is formed and is embedded with a sample, and the standard face can be put back to the storage position after the adpressed standard face of the paraffin mass embedded with the sample is fixed on a sample holder, which can avoid the slicing process from being influenced. The utility model is used for rotary microtomes or other microtomes, the slicing time of operators can be reduced, and the loss of the sample and the wear of the blade can be reduced; meanwhile, the utility model can cause the partial important small sample paraffin block to be repeatedly cut out to form eligible slices.

Description

This locating device of pathological section press proof

The utility model relates to a kind of medicine equipment, and especially a kind of this locating device of pathological section press proof has a standard reference face when this annex makes fixed sample, and this standard reference face is when the working position, and is during with actual slice that the tangent plane that forms is consistent.Allow sample when it treats that tangent plane and standard reference face are close to, be fixed, can direct slicing and do not repair sample or significantly reduce the sample amount of repairing.

At present, the known pathological section machine wax stone that comprises the sample tissue plane that will be cut and the plane parallel that cuts out in the future that in use can't guarantee to fix.When the sample to be cut of embedding was fixed in the sample folder, the section personnel were fixed in sample it usually and are treated that tangent plane is roughly with parallel with the tangent plane that forms.At rotary microtom, this plane is generally vertical guide, is generally surface level at sliding microtome.This explanation is example with the rotary microtom, but this device is suitable for sliding microtome equally.In general, estimate at bigger error merely by rule of thumb, often want the more sample of repairing, just can switch to complete section.The small sample of particularly cutting sheet before heavily cutting is (as the gastroscopic biopsy sample, about 2 * 2 * 2mm or following) time, the fixing small deflection of sample just may make section for the second time carry out: repairing sample has only about half of embedded material not switch to just switching to sample fashion, can't mount sheet; Continue to repair sheet to can switch to whole slices the time, last time a small amount of tissue that stays after the section may be pared off fully.For example above-mentioned gastroscopic biopsy sample (supposes that the wax stone sample is normally used 3 * 3cm size, and organization embedding hits exactly in wax stone), cut away for the first time the thick tissue of 1mm, heavily cut this sample if deflection 5 is spent (30/2 xsin5 °=1.307mm), promptly can before cutting out complete square section thick the organizing fully of last 1mm be pared off.And usually once more the degree of accuracy of fixed sample to be limited in 5 degree with interior be difficulty extremely.Cut membranaceous or during lamellar structure difficulty bigger, and when cutting into slices for the first time, will occur.At new-type microtome (as MICROM HM325, Zeiss group, Germany) many designs have the device that can adjust the sample folder at both direction on the sample arm, but in actual use but because the standard that neither one is regulated, can't judge whether to treat that tangent plane is adjusted into a vertical guide that is parallel to the edge of a knife, and be difficult to play a role.

The purpose of this utility model allows sample be fixed when it treats that tangent plane and standard reference face are close to exactly, makes the sample wax stone treat tangent plane with the wax stone tangent plane that forms is parallel, and the operator can direct slicing and do not repair sample or significantly reduce the sample amount of repairing.

The purpose of this utility model is achieved in that this device by rotation or slide mechanism is connected in the pathological section machine or on the knife rest, can be concealed in the pathological section machine at ordinary times or on the knife rest, during work rotatable or skid off after rotate to the working position.When the working position, this standard reference face is one to be parallel to the vertical guide or the approximate vertical guide of slicer; This device can stop by a projecting part when arriving working position and be fixing or semifixed, and unlikely put in place inaccurate; Sample is removed the standard reference face after being fixed in the sample folder when being close to the standard reference face of working position; During section, along with moving of sample, slicer just in time skims over whole sample and treats tangent plane.Along with moving up and down of sample each time, sample moves certain distance (i.e. Qie Pian thickness) to blade, sample plane is that a vertical guide that is parallel to the edge of a knife has guaranteed that at least since second section, resulting section is exactly qualified, needs to repair sheet hardly.This vertical guide is fixed in a L shaped litter or U-shaped swing frame, guarantee at ordinary times this standard reference face can be concealed in the pathological section machine or on the knife rest with the obstruction free slicing processes, during work rotatable again or skid off after rotate to the working position; Attached parts can comprise: the mechanism that this device can be locked in the collection position can automatically lock when firmly this device being recovered to the collection position; Push a button and can remove this locking; One provides the spring of this device being sent to the working position, and guaranteeing provides thrust on correct direction when unlocking; One guarantees that this device accurately arrives the projecting part of working position, can stop in the working position and fixing or semifixed this device.This standard reference face is made by the transparent material of marginal belt scale, guarantees that the user can see through it and observe sample; Transparent material is made horizontal edge (vertical and horizontal direction) band scale, can help the user to determine the position up and down of sample.

Owing to adopt such scheme, can reduce operator's the section time, reduce sample and lose and edge of a knife wearing and tearing, make the important small sample wax stone of part can heavily cut out qualified section repeatedly simultaneously.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is that the utility model is attached at the synoptic diagram on the L type support;

Fig. 2 is that the utility model is attached at the synoptic diagram on the U type support;

Fig. 3 is in working order position of index plane of the present utility model when pedal line moves (when the sample of microtome is clipped in section along);

Fig. 4 is in working order position of index plane of the present utility model when certain camber line moves (when the sample of microtome is clipped in section along);

Fig. 5 is that index plane of the present utility model is in position in running order on the microtome (on index plane being attached at L type support time);

Fig. 6 is that index plane of the present utility model is in the position that is in off working state on the microtome (on index plane being attached at L type support time);

Among the figure, 1. index plane; 2. index plane support; 3.L the part that type index plane support can slide in sleeve pipe; 4.U the rotation axis of type index plane support; 5. blade holder; 6. blade; 7. be embedded in the sample in the paraffin mass; 8. be embedded with the paraffin mass of sample; 9. sample presss from both sides; 10. press from both sides the lever arm that links with sample; 11. what cut out is partially sliced; 12.L the sleeve pipe of type index plane support; 13. the spring that stretches; 14. rocking arm; 15. microtome base; 16. the spring of compression.

With before the microtome section, be attached at index plane support 2 on the blade holder 5 (or discharge by button not shown in the figures the L type support 3 that is collected in the sleeve pipe 12) by rotation by rotation axis 4, index plane 1 is placed working position; The tangent plane for the treatment of of the paraffin mass 8 that is embedded with sample 7 is close to index plane 1, clamps sample folder 9; Rotation (or is rotated and pushing L type support 3 by the index plane support 2 that rotation axis 4 is attached on the blade holder 5, spring 16 in the sleeve pipe 12 is compressed, thereby L type support 3 is collected in the sleeve pipe 12, by mechanism's locking not shown in the figures), make index plane 1 leave working position, get back to the collection position, in order to avoid influence slicing processes.At this moment, the tangent plane for the treatment of that is embedded with the paraffin mass 8 of sample 7 has been in the vertical guide (just being on the plane of the tangent plane that will form) that is parallel to blade 6 in slicing processes.The rocking arm 14 of rocking microtome as the routine section can just can cut out complete section 11 with repairing sample hardly.Index plane 1 is made by transparent material, makes the operator also can adjust the fixed position of the paraffin mass 8 that is embedded with sample 7 in the horizontal direction, so that select to use the different parts of blade 6 to cut into slices.

Above explanation is at the utility model is implemented on rotary microtom.But as long as index plane is done corresponding adjustment (still keeping with the tangent plane that forms is parallel with the edge of a knife) at the work bit position, the utility model also can be used for other forms of microtome.

Claims

1. this locating device of pathological section press proof, form by index plane (1), index plane support (2), support rotation axis (4) or rack sleeve (12) and spring (13) wherein, it is characterized in that: described index plane (1) links to each other with index plane support (2), described index plane (1) is parallel with the tangent plane of the paraffin mass that is embedded with sample (8) that will form in slicing processes with the edge of a knife of microtome when working position, and described index plane (1) can be put back to the collection position after the paraffin mass that is embedded with sample is fixed in sample folder (9).

2. this locating device of pathological section press proof according to claim 1 is characterized in that: described index plane (1) is made by transparent material, and has scale.