Surgery – Truss – Pad
Patent
1995-04-13
1997-04-15
McDermott, Corrine M.
Surgery
Truss
Pad
604283, 604412, 604414, A61B 500
Patent
active
056200080
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a fluid coupling device, and particularly to such a device for coupling an in-line blood sampling unit of a blood collecting assembly to a blood sampling container.
One known technique for drawing samples of blood uses a double-ended needle, one end of which is to be inserted into the subject's blood vessel, and the opposite end of which is to be coupled to a blood collecting container under vacuum such as to draw the blood into the container. Examples of this type of device are described in European Patent Application 88906129.7 and U.S. Pat. Nos. 3,877,465 and 4,935,012.
It is also known to draw a sample of blood via an in-line blood sampling unit already in place for another purpose. For example, where a blood collecting assembly is already connected to a subject donating blood, it may be desirable to extract a sample of the blood for diagnostic or testing purposes. This may be done by providing the blood collecting assembly with an in-line blood sampling unit, as described, for example, in U.S. Pat. Nos. 4,763,648, 4,920,970 and 4,981,140.
According to the present invention, there is provided a fluid coupling device for coupling an in-line blood sampling unit of a blood collecting assembly to a blood sampling container, comprising: a housing having an anterior section formed with an open end capable of being applied to the blood sampling device, a posterior section integral with said anterior section and formed with an open end capable of receiving the blood sampling container, and a transversely-extending member between the anterior and posterior sections; a needle secured to the transversely-extending member so as to extend axially of the housing; the needle having anterior and posterior sections extending within the anterior and posterior sections of the housing, respectively; both the anterior and posterior sections of the needle terminating sufficiently short of the open ends of the anterior and posterior sections of the housing such a to be protected against accidentally puncturing a user's skin; and attaching means for attaching the housing to the blood sampling device with the anterior section of the needle penetrating the blood sampling unit perpendicularly to the flow of blood therethrough.
According to further features in the described preferred embodiment, the attaching means comprises a pair of bayonet-type slots formed in the opposite sides of the housing anterior section, each slot having an axially-extending portion starting from the open end of the housing anterior section and terminating in a circumferentially-extending portion inwardly of the open end.
Further features and advantages of the invention will be apparent from the description below.
The invention is herein described, by way of example only, with reference to the accompanying drawings, wherein:
FIG. 1 illustrates a blood sampling system including one form of fluid coupling device constructed in accordance with the present invention;
FIG. 2 is a three-dimensional view, partly broken away to show internal structure, of the fluid coupling device illustrated in FIG. 1;
FIG. 3 illustrates the attachment of the fluid coupling device of FIG. 2 to the in-line blood sampling unit of the blood collecting assembly of FIG. 1;
FIG. 4 is a view similar to that of FIG. 2 but illustrating another form of fluid coupling device constructed in accordance with the present invention; and
FIG. 5 illustrates a modification in the construction of the in-line blood sampling unit.
The blood sampling system illustrated in FIG. 1 comprises an in-line blood sampling assembly 2, a fluid coupling device 4, and a blood sampling container 6. The in-line blood collecting assembly may be of a known construction, such as described in the above-cited U.S. Pat. Nos. 4,763,648, 4,902,970 and 4,981,140, as illustrated in FIG. 3. The blood sampling container 6 may also be of a known construction. The present invention relates primarily to the fluid coupling device 4 for coupling the in-line blood collecting assembly 2 to the blood
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Patent Abstracts of Japan, vol. 13, No. 414 (C-635), 13 Sep. 1989 & JP-A-01 151464 (Terumo Corp.) 14 Jun. 1989.
Choori Menashe
Rotem Sarit
Shemesh Eli
Shinar Eilat
Tobe Ellen
McDermott Corrine M.
Migada Inc.
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