# US 9,518,902 B2 · Embedder

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- Number: US 9,518,902 B2
- Document ID: US9518902B2
- Status: Granted
- Kind: B2
- Application number: 14/953,318
- Filed: 2015-11-28
- Published: 2016-06-30
- Granted: 2016-12-13
- Earliest claimed: 2014-12-29
- Assignees: Leica Microsystems Ltd., Shanghai
- Applicants: Leica Microsystems Ltd. Shanghai
- Inventors: Ningjiang Chen; Yuan Chu; Chonglu Wang
- Web page: https://patentgrep.com/patent/US9518902B2

## CPC

- G01N 1/36: Embedding or analogous mounting of samples
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

An embedder is provided. The embedder includes a body having a working stand; a paraffin reservoir disposed in the body; a paraffin dispenser disposed on the body and connected with the paraffin reservoir; a heated working plate disposed on the working stand; a cooling plate disposed on the working stand; a tray disposed on the working stand; and a ceramic layer at least formed on an inner wall surface of the tray. With the embedder according to the present invention, by coating the ceramic layer on the inner wall surface of the tray to form an anti-scratch protective layer, when removing solidified paraffin wax on the inner wall surface of the tray, it is possible to avoid scratching the inner wall surface of the tray so as to avoid the damage to the surface of the tray.

## Claims

### Claim 1

An embedder, comprising:
a body having a working stand;
a paraffin reservoir disposed in the body;
a paraffin dispenser disposed on the body and connected with the paraffin reservoir;
a heated working plate disposed on the working stand;
a cooling plate disposed on the working stand;
a tray disposed on the working stand; and
a ceramic layer at least formed on an inner wall surface of the tray, an inner wall surface of the paraffin reservoir, and an inner wall surface of a dispensing outlet of the paraffin dispenser, wherein the ceramic layer is a zirconia ceramic layer.

### Claim 2 (depends on 1)

The embedder according to claim 1, wherein the tray has a tray lid thereon, and the ceramic layer is further formed on an inner wall surface of the tray lid.

### Claim 3 (depends on 1)

The embedder according to claim 1, wherein the ceramic layer is further formed on surfaces of the heated working plate and the cooling plate.

### Claim 4 (depends on 1)

The embedder according to claim 1, wherein a forcep holder is disposed on the working stand, and the ceramic layer is further formed on a surface of the forcep holder.

### Claim 5 (depends on 1)

The embedder according to claim 1, wherein a groove is formed in a surface of the working stand, and the tray is disposed within the groove.

### Claim 6 (depends on 5)

The embedder according to claim 5, wherein two trays are provided and spaced apart from each other in a left and right direction, and the heated working plate and the cooling plate are located in front of the two trays.

### Claim 7 (depends on 1)

The embedder according to claim 1, wherein a dispensing outlet of the paraffin dispenser is located above the heated working plate.

### Claim 8 (depends on 1)

The embedder according to claim 1, wherein a paraffin collection container is disposed in the working stand, the paraffin collection container is able to be pulled out of or pushed into the working stand, the heated working plate has a guide channel for runoff of overflowing paraffin wax, and the heated working plate has a plurality of holes in the guide channel for paraffin wax to flow through to the paraffin collection container.