System and method for automatic taking of specimens

• US 7,258,672 B2
• Filed: 11/30/2001
• Issued: 08/21/2007
• Est. Priority Date: 11/30/2000
• Status: Expired due to Fees

• Current Assignee: Dilab I LUND AB (VeruTech AB)
• Original Assignee: Dilab I LUND AB (VeruTech AB)
• Inventors: Hansson, Jens, Hansson, Hans-Axel
• Primary Examiner(s): Hindenburg; Max
• Assistant Examiner(s): TOWA, RENE T
• Application Number:
  US10/432,574
• Publication Number:
  US 20040068202A1
• Time in Patent Office: 2,090 Days
• Field of Search: 600/573, 600/576, 600/578, 600/580, 600/581, 604/164.02, 604/191
• US Class Current: 600/581
• CPC Class Codes: A61B 2503/40 Animals
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150213 Venting means
• CPC Class Codes: A61B 5/150221 Valves
• CPC Class Codes: A61B 5/150229 Pumps for assisting the blood sampling
• CPC Class Codes: A61B 5/153 Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
• CPC Class Codes: A61B 5/155 Devices specially adapted for continuous or multiple sampling, e.g. at predetermined intervals devices loaded with multiple lancets simultaneously A61B5/15146

Abstract

A method and a system for automatic taking of specimen from a static or living test object, comprising the steps and functional elements of guiding a specimen collector (10) by means of a guiding device (20) to a specimen terminal (22) attached to the test object (1); extracting a fluid specimen from the test object (1) to the specimen collector (10); guiding the specimen collector (10) by means of the guiding device (20) to a specimen container (50); and delivering or outputting the specimen from the specimen collector (10) to the specimen container (50).

Claims

1. A method for automatic taking of a specimen from a test object, comprising the steps of:

moving a specimen collector, by means of a guiding device, to a specimen terminal attached to the test object;

extracting a fluid specimen from the test object to the specimen collector;

moving The specimen collector, by means of the guiding device, to an output position;

outputting the specimen from the specimen collector, wherein the guiding device mechanically guides the specimen collector between the specimen terminal and said output position;

moving the specimen collector by way of a first branch of the guiding device to and from the specimen terminal;

moving the specimen collector by way of a second branch of the guiding device to and from the specimen container, wherein the specimen collector is moved from the first branch to the second branch via a guiding path switch, wherein the specimen collector comprises an inner tubing that extends inside an outer tubing comprised in the guiding device, the outer tubing having a first end arranged at said specimen terminal and a second end arranged at said specimen collector, wherein the specimen collector is displaced through a first tubing branch of the outer tubing to and from the specimen terminal and through a second tubing branch to and from the specimen container;

moving the inner tubing to a position in a first part of the outer tubing proximal said guiding path switch;

actuating the guiding path switch to join the guiding path of said first tubing part with a selectable guiding path of said first tubing branch or second tubing branch; and

moving the inner tubing via said guiding path switch into a selected first or second tubing branch.

2. A system for automatic taking of specimen from a test object, comprising:

an elongate specimen collector having at its distal end a cavity configured to store a liquid specimen from said test object;

a guiding device configured in such a way that said specimen collector can be moved along a selectable first or second guiding path;

a specimen terminal that is attachable to the test object, the specimen terminal being configured to be coupled to a vessel of said test object and to a first guiding path of said guiding device;

wherein the specimen collector comprises a first, interior tubing positioned axially movable in a second, exterior tubing comprised in said guiding device;

wherein said exterior tubing has a first orifice at one end coupled to the specimen terminal and a second orifice at another end configured for outputting a content of the specimen collector;

wherein said guiding device comprises a first tubing portion connected at one end to the guiding path switch, a first tubing branch portion and a second tubing branch portion each at one end, respectively, being connected to said guiding path switch; and

said first tubing portion is selectively connectable to said first or second tubing branch portion by means of said guiding branch switch.

3. The system as recited in claim 2, wherein said second guiding path is configured to be coupled to a specimen container.

4. The system as recited in claim 2, wherein the guiding device comprises a guiding path switch configured to lead the specimen collector to a first path branch connected to the specimen terminal or to a second path branch for outputting a content of the specimen collector.

5. The system as recited in claim 2, further comprising a pumping device configured to actuate an extraction of a fluid specimen from the test object to the specimen collector and to actuate an output of a fluid specimen from said specimen collector.

6. The system as recited in claim 2, wherein the exterior tubing comprises a perforation configured for insuction of a separation medium, and positioned proximate the connection between the exterior tubing and the specimen terminal.

7. The system as recited in claim 2, further comprising a specimen collector head piece having an elongate shape comprising a lumen for storing a specimen and a connector for connecting to the lumen of a specimen collector tubing or lead.

8. The system as recited in claim 7, further comprising a widening part at one end of the head piece having a generally round geometrical shape, the diameter of which increases from the distal end to a predetermined maximum diameter.

9. The system as recited in claim 2, wherein the specimen terminal has a fluid lumen, a connector for connecting the lumen to a tubing and means for attaching the terminal to a test object.

10. The system as recited in claim 9, the specimen terminal further comprising a flange extending in a substantially radial direction in relation to said lumen of the terminal and being configured to even out a pressure over a surface of the test object when attached to said object.

11. The system as recited in claim 9, the specimen terminal further being devised to be coupled to or comprising a catheter such that a lumen of said catheter coincides with a lumen of said terminal.

12. The system as recited in claim 9, the specimen terminal further being devised to be coupled to or comprising a capillary tube such that a lumen of said capillary tube coincides with a lumen of said terminal.

13. The system as recited in claim 9, the specimen terminal further comprising a contraction.

14. The system as recited in claim 13, wherein the contraction is realised as a septum.

15. The system as recited in claim 13, further comprising a valve element being provided with said contraction.

16. A computer program product stored on a tangible storage medium for use in a data processing system controlling automatic taking of a specimen from a test object by means of a specimen collector guided by a guiding device and displaced by means of a driving mechanism, said test object being coupled at a specimen terminal to the guiding device and said specimen collector having a lumen, the computer program product comprising program code portions configured to direct the data processing system to:

actuate the guiding device and the driving mechanism to move the specimen collector to the specimen terminal;

actuate the extraction of a specimen from the test object into the lumen of said specimen collector by means of a pumping device;

actuate the guiding device and the driving mechanism to move the specimen collector to a selected position;

actuate the output of the specimen from the specimen collector by means of said pumping device, wherein the guiding device mechanically guides the specimen collector between the specimen terminal and said output position;

actuate the movement of the specimen collector by way of a first branch of the guiding device to and from the specimen terminal;

actuate the movement of the specimen collector by way of a second branch of the guiding device to and from the specimen container, wherein the specimen collector is moved from the first branch to the second branch via a guiding path switch, wherein the specimen collector comprises an inner tubing that extends inside an outer tubing comprised in the guiding device, the outer tubing having a first end arranged at said specimen terminal and a second end arranged at said specimen collector, wherein the specimen collector is displaced through a first tubing branch of the outer tubing to and from the specimen terminal and through a second tubing branch to and from the specimen container;

actuate the movement of the inner tubing to a position in a first part of the outer tubing proximal said guiding path switch;

actuate the guiding path switch to join the guiding path of said first tubing part with a selectable guiding path of said first tubing branch or second tubing branch; and

to

actuate the movement of the inner tubing via said guiding path switch into a selected first or second tubing branch.

17. The computer program product as recited in claim 16, further comprising program code portions configured to direct a data processing system of a specimen taking system.