Sample collection implement

Abstract

A sample collection implement S 1 includes a container 1 having an accommodation portion 10 in which a liquid 5 for suspending or diluting a sample is accommodated, a sample collection stick 2 being able to be disposed in the accommodation portion 10 , a filter 3 provided inside the container 1 , and a movable member 4 that can be moved in a predetermined direction inside the container 1 and has a function of pushing the liquid 5 and causing the liquid to pass through the filter 3 , when moved in the predetermined direction. With such a configuration, when the liquid 5 is filtered, it is not necessary to move the filter 3 by directly pushing it and a filter with a low mechanical strength can be used as the filter 3 . In addition, it is not necessary to use a centrifugal apparatus.

1 . A sample collection implement comprising:
 a container having an accommodation portion in which a liquid for suspending or diluting a sample is accommodated, a sample collection stick being able to be disposed in the accommodation portion, and   a filter provided inside the container,   the sample collection implement further comprising   a movable member that can be moved in a predetermined direction inside the container and has a function of pushing the liquid and causing the liquid to pass through the filter, when moved in the predetermined direction.   
     
     
         2 . The sample collection implement according to  claim 1 , wherein
 the movable member is provided separately from the filter and can be moved by being pushed from outside the container.   
     
     
         3 . The sample collection implement according to  claim 2 , wherein
 adjacent first and second regions partitioned by a partition wall are formed inside the container,   the filter is disposed in the first region, and   when the liquid passes through the filter by the movement of the movable member, at least part of the liquid that has passed through the filter flows into the second region over the partition wall, and is retained in the second region.   
     
     
         4 . The sample collection implement according to  claim 3 , wherein
 the movable member is slidably inserted into the second region and can move down when pushed from above to push the liquid so as to cause the liquid to pass through the filter, and   when the liquid that has passed through the filter flows into the second region, the liquid can be retained on the movable member.   
     
     
         5 . The sample collection implement according to  claim 3 , wherein
 the movable member is provided in a location different from the second region,   the second region has a fort such that a bottom portion thereof is closed by part of the container or by a fixing member separate from the container, and   when the liquid that has passed through the filter flows into the second region, the liquid can be retained on the bottom portion.   
     
     
         6 . The sample collection implement according to claim  1 , further comprising
 linking means capable of linking the sample collection stick to the movable member in a state in which the sample collection stick is inserted into the container, wherein   the filter is held by the movable member, and   the movable member can be moved in the predetermined direction by operating the sample collection stick in a state in which the sample collection stick is linked to the movable member by the linking means.   
     
     
         7 . The sample collection implement according to  claim 6 , wherein
 the linking means includes a pair of threaded portions provided at the movable member and the sample collection stick, and   an advance operation of the sample collection stick towards the movable member and a rotation operation thereof can be performed in a state in which the sample collection stick is inserted into the container, and the pair of threaded portions can be screwed together by the operations.   
     
     
         8 . The sample collection implement according to  claim 6 , wherein
 the linking means includes a concave portion provided in one of the movable member and the sample collection stick, and a convex portion that is provided in the other of the two and can be inserted into the concave portion when the sample collection stick is advanced towards the movable member,   the concave portion has a constriction portion that is locally reduced in width, and   the convex portion has a protruding portion that engages with the constriction portion to prevent the convex portion from slipping out of the concave portion after the convex portion is inserted into the concave portion.   
     
     
         9 . The sample collection implement according to  claim 1 , further comprising
 a power generating element that is disposed inside the container and serves to generate a force that causes the movable member to move in the predetermined direction, wherein   the power generating element can be actuated by a predetermined operation or action outside the container or by the operation of the sample collection stick.   
     
     
         10 . The sample collection implement according to  claim 9 , wherein
 the power generating element is a magnet or a non-magnetized ferromagnetic material constituting at least part of the movable member, and   the movable member can be moved in the predetermined direction by causing a magnetic force to act upon the magnet or the ferromagnetic material from the outside of the container or from the sample collection stick.   
     
     
         11 . The sample collection implement according to  claim 9 , wherein
 the movable member is provided so as to form a space partitioned from the accommodation portion inside the container, and   the power generating element is a substance for gas generation that is accommodated in the space, and the movable member can be moved in the predetermined direction by a gas pressure created when the substance for gas generation generates gas.   
     
     
         12 . The sample collection implement according to  claim 1 , wherein
 the movable member can be engaged with the sample collection stick,   an operation causing at least one action from among rotation and movement can be performed with respect to the sample collection stick in a state in which the sample collection stick is inserted into the container, and   when the operation is performed and the sample collection stick acts, the movable member moves in the predetermined direction in conjunction with this action.   
     
     
         13 . The sample collection implement according to  claim 12 , wherein
 an outer circumferential surface of the movable member and an inner circumferential surface of the container are provided with a pair of threaded portions that are screwed together,   when the sample collection stick is inserted into the container, the sample collection stick assumes a state in which the sample collection stick is inserted into a through hole provided in the movable member, can move in the predetermined direction relative to the movable member, and is blocked from rotating relative to the movable member, and   when the sample collection stick is rotated, the movable member can be moved in the predetermined direction by a screw feed action of the pair of threaded portions.   
     
     
         14 . The sample collection implement according to  claim 12 , wherein
 the sample collection stick is inserted into a through hole provided in the movable member when the sample collection stick is inserted into the container, and   when the sample collection stick is advanced in the direction of insertion into the container by a distance equal to or longer than a predetermined distance, the movable member and the sample collection stick are engaged together and the movable member advances in conjunction with the sample collection stick.