Filtered access port with filter bypass for accessing body fluid

Details Filtered access port with filter bypass for accessing body fluid Filtered access port with filter bypass for accessing body fluid

1998-10-22

2000-01-11

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604247, A61M 1100

Patent

active

060130512

ABSTRACT:
An access port is described that allows for filtered introduction of a drug while also allowing bypass of the filter when taking CSF samples. The access port is in fluid communication with a catheter that is surgically implanted in a patient's brain or intraspinal space. The access port has a first chamber in fluid communication with the catheter through a bioretentive filter and a one-way valve. The one-way valve allows fluid to flow only in the direction from the first chamber to the catheter. The bioretentive filter filters the fluid to remove particulate matter, bacteria or other undesirable objects prior to introduction of the fluid to the CSF. The access port also includes a second chamber that is in fluid communication with the catheter. The second chamber is separated from the first chamber by a needle screen and a septum. There is no bioretentive filter or one-way valve on the fluid path between the second chamber and the catheter allowing CSF samples to be taken from the patient in an unfiltered manner from the same device. The needle screen has a hole size that allows only needles smaller than a certain size to pass through.

REFERENCES:
patent: 4904237 (1990-02-01), Janese
patent: 5396899 (1995-03-01), Strittmatter
patent: 5643207 (1997-07-01), Rise
patent: 5695490 (1997-12-01), Flaherty et al.
patent: 5702363 (1997-12-01), Flaherty
patent: 5711316 (1998-01-01), Elsberry et al.
patent: 5713858 (1998-02-01), Heruth et al.
patent: 5735814 (1998-04-01), Elsberry et al.
patent: 5738650 (1998-04-01), Gregg
patent: 5752930 (1998-05-01), Rise et al.
patent: 5814014 (1998-09-01), Elsberry et al.
patent: 5832932 (1998-11-01), Elsberry et al.
patent: 5840063 (1998-11-01), Flaherty
patent: 5897528 (1999-04-01), Schultz

Affiliated with

Also associated with

Rating

Filtered access port with filter bypass for accessing body fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filtered access port with filter bypass for accessing body fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filtered access port with filter bypass for accessing body fluid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1458557