Claims
- 1. A blood specimen sampling method for sampling a blood specimen from a blood-collecting tube having a film stopper at an opening portion thereof, said method comprising:
- providing a blood-collecting tube having a film stopper fused to an opening portion thereof, said film stopper comprising a gas-barrier film layer having a thickness of 10-200 .mu.m and a resealable layer having thickness of 0.3--2 mm on said gas-barrier film layer, and said blood-collecting tube containing a blood specimen including a serum layer and a clot layer separated by a serum separating agent layer;
- introducing a needle having a distal end into the interior of said blood-collecting tube by moving a holding body which holds said needle in a direction toward said film stopper to cause said distal end of said needle to penetrate said film stopper;
- detecting said blood specimen serum separating agent layer by means of a sensor coupled to said holding body and positioned outside of said blood-collecting tube at a predetermined distance forward of said distal end of said needle in the direction of movement of said holding body toward said film stopper;
- adjusting the position of said distal end of said needle to be located in said blood specimen serum layer by moving said holding body further in the direction toward said film stopper a distance based on the predetermined distance between said distal end of said needle and said sensor; and
- drawing only said blood specimen serum layer into said needle from said distal end portion of said needle.
- 2. The blood specimen sampling method of claim 1, further including a step of piercing said film stopper with an air-introducing needle at least before said blood specimen serum layer is drawn into said needle.
- 3. The blood specimen sampling method of claim 1, further comprising bonding said resealable layer to said gas-barrier film layer.
- 4. The blood specimen sampling method of claim 3, wherein said bonding step comprises adhering said resealable layer to said gas barrier film layer with an adhesive.
- 5. The blood specimen sampling method of claim 1, wherein said film stopper is fused to said opening portion of said blood-collecting tube by fusing said gas-barrier film layer of said film stopper to said opening portion of said blood-collecting tube.
Priority Claims (1)
Number |
Date |
Country |
Kind |
62-150241 |
Jun 1987 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/449,842, filed as PCT/JP88/00605, Jun. 17, 1988, published as WO88/10441, Dec. 29, 1988, filed Jan. 10, 1990, now abandoned.
US Referenced Citations (19)
Foreign Referenced Citations (14)
Number |
Date |
Country |
0059297 |
Sep 1982 |
EPX |
0199356 |
Oct 1986 |
EPX |
2834186 |
Aug 1979 |
DEX |
48-20157 |
Jun 1973 |
JPX |
0039185 |
Apr 1978 |
JPX |
57-113364 |
Jul 1982 |
JPX |
59-638 |
Jan 1984 |
JPX |
59-55240 |
Mar 1984 |
JPX |
59-187262 |
Oct 1984 |
JPX |
60-13465 |
Jan 1985 |
JPX |
60-27836 |
Feb 1985 |
JPX |
0108754 |
Jun 1985 |
JPX |
61-2037 |
Jan 1986 |
JPX |
2071066 |
Sep 1981 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
449892 |
Jan 1990 |
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