Global patent index - EP 1047945 A2

EP 1047945 A2 2000-11-02 - Flow analysis cell and layered sensor pertaining thereto

Title (en)

Flow analysis cell and layered sensor pertaining thereto

Title (de)

Durchfluss-Analysenzelle und Zugehöriger Schichtsensor

Title (fr)

Cellule d'analyse à ecoulement et capteur à couche associe

Publication

EP 1047945 A2 (DE)

Application

EP 99930890 A

Priority

  • DE 9900063 W
  • DE 19801344 A

Abstract (en)

[origin: DE19801344A1] The flat sensor (20), is a thin or thick layer structure in a flow analysis cell, has at least one defined passage (24) for the fluid medium to be analyzed which is across the sensor (20) plane. The feed and outlet channels are on opposite sides of the sensor. The cell volume has a conical geometry, with the base of the cone at the sensitive surface of the sensor (20). A collection volume is at the side with the outlet, directly behind the sensor (20). The sensor can be fitted with a number of feed and outlet channels. The cell components (32) are within a holder. The connections for the feed and outlet channels and the acquisition of the sensor signals are contained within a detector unit. The holder has at least one system to take the sensor (20) signals, and a grip to secure the sensor (20) in a position in contact with the cell volume. The holder is in at least two parts, in a release bond with each other, with the sensor (20) between them. The holder can flap open. The holder is of metal or plastics or a ceramic material, with the cell volume integrated into its structure or through an exchangeable fluid handling component. The sensor (20) is an electrode, with a multiple-electrode geometry (22) printed on a carrier. At least one of the electrodes has at least one defined fluid passage (24) across the sensor layer. One electrode can be ion selective, another can be a pH electrode and a further electrode can measure electrochemical actions. The sensor (20) is a biosensor, preferably with a thin layer fixed on a carrier. A sensitive sensor layer is positioned at the sensor (20) in the direct vicinity of the fluid passage (24) to be next to it, within it, or through it. The passage (24) in within the layer or directly next to the layer such as in the carrier. The passage (24) has a round cross section, and can be conical across the sensor layer.

IPC 1-7 (main, further and additional classification)

G01N 35/00; G01N 33/00

IPC 8 full level (invention and additional information)

G01N 27/403 (2006.01)

CPC (invention and additional information)

G01N 27/403 (2013.01)

Citation (search report)

See references of WO 9936786A3

Designated contracting state (EPC)

AT CH DE FR GB IT LI SE

EPO simple patent family

DE 19801344 A1 19990729; DE 19801344 C2 20020117; EP 1047945 A2 20001102; US 6544393 B1 20030408; WO 9936786 A2 19990722; WO 9936786 A3 19990923

INPADOC legal status

2003-12-10 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030528

2001-06-06 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010423

2000-11-02 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000728

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT CH DE FR GB IT LI SE