| 摘要 |
A device for sampling biological tissue (1) to be used in a label for marking animals includes: a hollow needle (3) having a cutting edge (36) at one end, capable of sampling a biological tissue sample when the sampling device is inserted into the biological tissue; a fixation part (22) of the hollow needle, made as a single piece and including a tank (2) containing a chemical for processing a biological tissue sample, the base of the tank including a partition (211) that is punctured by the needle when a pressure is applied upon the insertion of the sampling device into the biological tissue. After puncturing the partition, the content of the tank flow into the hollow needle and contacts the recovered sample. The end of the hollow needle containing the sample can further be protected by a cap, and the sample remains easily accessible for further analysis. |
| 主权项 |
1. A device for sampling biological tissue, comprising:
a tank containing a chemical product for treating a sample of biological tissue, the tank comprising a tank wall defining i) a lateral wall, ii) an adjoining base comprising a partition, iii) an opening located opposite the base and configured for filing the tank, and iv) an attachment part adjoining the base and ending with an orifice; a hollow needle with a continuous cavity that ends in a first opening at a first tip and in a second opening at a second tip, the first and second openings being in fluid communication with each other via the cavity, the first tip being held within an interior channel of the attachment part so that the needle extends out from the orifice, the needle, under pressure exerted on the second tip, being movable along a longitudinal axis of the interior channel of the attachment part so that said first tip moves towards the partition, wherein said hollow needle further comprises a cutting edge at said second tip configured to cut out the biological tissue to create a sample received in said cavity when the cutting edge at said second tip is pushed into the biological tissue, wherein said channel has dimensions that hold a proximal part of said hollow needle that carries the first tip, and wherein said partition is pierced by said first tip of said hollow needle after the sampling device is pushed into the biological tissue from the biological tissue exerting pressure on the second tip sufficient to move the needle along the longitudinal axis of the interior channel of the attachment part and so that said first tip moves towards and pierces the partition. |
