Cell collecting device

Abstract

A cell collecting device is configured to collect target cells from a fluid sample such as blood or physiological fluid. The cell collecting device includes a first filter having a plurality of first pores formed into a size that enables target cells contained in a fluid sample to pass through the first pores, and a second filter having a plurality of second pores formed into a size that enables the target cells contained to pass through the second pores. The second filter is arranged below the first filter in such a position as to filter the target cells.

1 . A cell collecting device, comprising:
 a first filter having a plurality of first pores formed into a size that enables target cells contained in a fluid sample to pass through the first pores; and   a second filter having a plurality of second pores formed into a size that enables the target cells contained to pass through the second pores, the second filter arranged below the first filter in such a position as to filter the target cells.   
     
     
         2 . The cell collecting device of  claim 1 , wherein the first filter and the second filter are arranged such that the first pores and the second pores get out of alignment with each other. 
     
     
         3 . The cell collecting device of  claim 1 , wherein the first filter and the second filter are arranged to move away from each other such that the target cells pass through the second pores. 
     
     
         4 . The cell collecting device of  claim 1 , wherein the first filter includes a plurality of first transverse strips and a plurality of first longitudinal strips formed between the first pores, the second filter including a plurality of second transverse strips and a plurality of second longitudinal strips formed between the second pores, the second transverse strips arranged to extend across central regions of the first pores when the first filter and the second filter are superimposed each other. 
     
     
         5 . The cell collecting device of  claim 4 , wherein the second longitudinal strips are arranged to extend across the central regions of the first pores when the first filter and the second filter are superimposed each other. 
     
     
         6 . The cell collecting device of  claim 4 , wherein the first transverse strips, the first longitudinal strips, the second transverse strips and the second longitudinal strips are formed to have a width smaller than a diameter of the target cells. 
     
     
         7 . The cell collecting device of  claim 1 , wherein the first pores and the second pores are formed into a rectangular shape. 
     
     
         8 . The cell collecting device of  claim 1 , further including a conduit through which the fluid sample flows, the first filter and the second filter installed inside the conduit. 
     
     
         9 . The cell collecting device of  claim 8 , wherein the conduit is divided into an upper conduit part having an upper passage and a lower conduit part having a lower passage, the first filter arranged in a lower portion of the upper passage, the second filter arranged in an upper portion of the lower passage. 
     
     
         10 . The cell collecting device of  claim 2 , wherein the first filter and the second filter are arranged to move away from each other such that the target cells pass through the second pores. 
     
     
         11 . The cell collecting device of  claim 2 , wherein the first filter includes a plurality of first transverse strips and a plurality of first longitudinal strips formed between the first pores, the second filter including a plurality of second transverse strips and a plurality of second longitudinal strips formed between the second pores, the second transverse strips arranged to extend across central regions of the first pores when the first filter and the second filter are superimposed each other. 
     
     
         12 . The cell collecting device of  claim 11 , wherein the second longitudinal strips are arranged to extend across the central regions of the first pores when the first filter and the second filter are superimposed each other. 
     
     
         13 . The cell collecting device of  claim 11 , wherein the first transverse strips, the first longitudinal strips, the second transverse strips and the second longitudinal strips are formed to have a width smaller than a diameter of the target cells. 
     
     
         14 . The cell collecting device of  claim 2 , wherein the first pores and the second pores are formed into a rectangular shape. 
     
     
         15 . The cell collecting device of  claim 2 , further including a conduit through which the fluid sample flows, the first filter and the second filter installed inside the conduit. 
     
     
         16 . The cell collecting device of  claim 15 , wherein the conduit is divided into an upper conduit part having an upper passage and a lower conduit part having a lower passage, the first filter arranged in a lower portion of the upper passage, the second filter arranged in an upper portion of the lower passage.