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US 3,937,213 AGranted
Body fluid collection device
OwnerBernard McDonaldinventor
Life of this patent
Estimating the term…
Abstract
A technique is provided for collecting and transferring body fluids such as blood or sputum. A blood sample is taken through a tube into an evacuated chamber. After the sample has been drawn it may be centrifuged to separate red cells from the plasma. Samples are then withdrawn from the first chamber into a second evacuated chamber where several analysis tubes are located. The sample is thus subdivided for analysis without exposure of the sample to the person making the tests. In another embodiment sputum is collected in a first chamber and is first blended with a preservative and then transferred to a second chamber where analysis tubes are located. Transfer is likewise without exposure of the person or contamination of the sample.
Claims25
A body fluid sampling device comprising:
- a rigid collection chamber for initially receiving a complete sample of a body fluid from a patient;
- a rigid sample chamber temporarily connected to the collection chamber;
- a plurality of evacuated sample tubes in the sample chamber;
- and
- means connected to each sample tube for establishing a selective fluid flow interconnection between the collection chamber and each of the sample tubes, respectively, after collection of the complete sample of body fluid in the collection chamber for dividing body fluid therein into selected aliquots.
2 more elements
A body fluid sampling device comprising:
- a rigid collection chamber comprising a cup-like vessel having an open top and a closed bottom for initially receiving a body fluid from a patient;
- a cover for the cup-like vessel;
- a rigid sample chamber comprising a second cup-like vessel temporarily connected to the bottom of the first vessel;
- a plurality of evacuated sample tubes in the sample chamber;
- and
- means connected to each sample tube for establishing a selective fluid flow interconnection between the bottom of the collection chamber and each of the sample tubes, respectively, after collection of body fluid in the collection chamber for dividing body fluid therein into selected aliquots.
3 more elements
A body fluid sampling device comprising:
- a collection chamber comprising an open top vessel having a closed bottom for initially receiving a body fluid from a patient;
- a sample chamber temporarily connected to the collection chamber;
- a plurality of evacuated sample tubes in the sample chamber;
- and
- means connected to each sample tube for establishing a selective fluid flow interconnection between the collection chamber and each of the sample tubes, respectively, after collection of body fluid in the collection chamber for dividing body fluid therein into selected aliquots;
- and
- a cover on the vessel having an internal closed cavity, said cover including a rupturable portion on a surface inside the collection chamber for establishing fluid flow between the cavity in the cover and the interior of the collection chamber.
4 more elements
A body fluid sampling device comprising:
- an open top collection chamber for initially receiving a body fluid from a patient;
- a sample chamber temporarily connected to the collection chamber;
- a plurality of evacuated sample tubes in the sample chamber;
- and
- means connected to each sample tube for establishing a selective fluid flow interconnection between the collection chamber and each of the sample tubes, respectively, after collection of body fluid in the collection chamber for dividing body fluid therein into selected aliquots;
- a hollow cover on the collection chamber, said cover including a rupturable portion for establishing fluid flow between the hollow of the cover and the interior of the collection chamber;
- a preserative liquid in the hollow cover;
- and
- means for rupturing the cover comprising a plurality of points on the collection chamber for cutting the cover as it is inserted in the collection chamber.
6 more elements
A sputum collection device comprising;
- a rigid cup-like vessel having an open top and a closed bottom;
- a sealed hollow cover on the vessel;
- a preservative liquid in a hollow in the cover;
- means on the vessel for rupturing the cover as it is inserted into the vessel;
- and
- means for extracting a portion of fluid from the vessel without removing the cover.
3 more elements
A sputum collection device comprising:
- a rigid cup-like vessel having an open top and a closed bottom;
- a sealed hollow cover for the vessel;
- a preservative liquid in a hollow in the cover;
- means on the vessel for rupturing the cover as it is inserted into the vessel;
- and
- means in the vessel for mixing sputum and preservative liquid therein.
3 more elements
A blood collection device comprising:
- a rigid evacuated collection chamber free of analysis or preservative reagents;
- a collection tube in fluid communication with the interior of the chamber and having a collapsible wall;
- a blood collection needle on the end of the tube for obtaining a blood sample from a patient;
- means for collapsing the wall of the tube;
- a rigid evacuated sample chamber containing a reagent;
- and
- means for selectively establishing fluid communication between the collection chamber and the sample chamber for removing a sample of blood from the collection chamber to the sample chamber.
4 more elements
A blood collection device comprising:
- an evacuated collection chamber free of analysis or preservative reagents;
- a collection tube in fluid communication with the interior of the chamber and having a collapsible wall;
- a blood collection needle on the end of the tube for obtaining a blood sample from a patient;
- means for collapsing the wall of the tube;
- an evacuated sample chamber;
- and
- means for selectively establishing fluid communication between the collection chamber and the sample chamber for removing a sample of blood from the collection chamber;
- and wherein the means for establishing comprises:
- a plurality of transfer tubes having an end in the sample chamber and a collapsible wall;
- a plurality of clamp means for collapsing the walls of the transfer tubes;
- a plurality of hollow needles on the other end of the tubes and movable to selectable depths in the collection chamber;
- and
- a plurality of sample tubes in the sample chamber, each sample tube being associated with a transfer tube.
10 more elements
A blood collection device comprising:
- a rigid evacuated collection chamber free of analysis or preservative reagents;
- a collection tube in fluid communication with the interior of the chamber and having a collapsible wall;
- a blood collection needle on the end of the tube for obtaining a blood sample from a patient;
- means for collapsing the wall of the tube;
- and
- a rigid evacuated sample chamber and means connecting the collection chamber and the sample chamber for removing a sample of blood from the collection chamber to the sample chamber;
- and wherein
- each chamber is in the form of a semi-cylinder, said chambers collectively forming a cylinder fittable in a centrifuge.
5 more elements
A blood collection device comprising:
- an evacuated collection chamber free of analysis or preservative reagents;
- a collection tube in fluid communication with the interior of the chamber and having a collapsible wall;
- a blood collection needle on the end of the tube for obtaining a blood sample from a patient;
- means for collapsing the wall of the tube;
- and
- means for removing a sample of blood from the collection chamber comprising:
- an evacuated sample chamber, said collection and said sample chamber each being in the form of a semicylinder, said chambers being collectively fittable in a centrifuge;
- a plurality of transfer tubes having one end in the sample chamber and a collapsible wall;
- a plurality of clamp means for collapsing the walls of the transfer tubes;
- a plurality of hollow needles on the other end of the tubes movable to selectable depths into blood in the collection chamber;
- and
- a plurality of sample tubes in the sample chamber, each sample tube being associated with a respective transfer tube, at least a portion of the sample tubes including a blood analysis or preservative reagent.
9 more elements
Dependencies are inferred from the claim text.