Sheath/obturator to facilitate insertion of medical devices into a patient's venous system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5125902
SERIAL NO

07488285

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A sheath and obturator is provided for facilitating the insertion of certain medical devices into a patient's vascular system, a vein, or venous system and in particular an in vivo extrapulmonary blood gas exchange device having a bundle comprised of a plurality of elongated gas permeable tubes being potted at each end and enclosed within a respective air tight proximal and distal chamber. The sheath is hollow and substantially tubular with a tapered receiving portion and a nontapered, curved entry portion. The obturator has a tip at the distal end of the obturator and a trip at the proximal end with an elongate member therebetween. The sheath is configured to receive the obturator in sliding engagement such that when the obturator is fully inserted within the sheath, the tip closes the opening at the entry end of the sheath and protrudes slightly therefrom. The obturator has a vent which provides a passage from space exterior to the sheath into the hollow interior of the sheath. The sheath and obturator are inserted into the patient through a single incision. Upon removal of the obturator from the sheath, a extrapulmonary blood gas exchange device may be inserted into and through the sheath into one of the right external iliac, common femoral or internal jugular veins, and then into the vena cavae where the elongate gas permeable tubes may be deployed for blood oxygenation.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BIOSURFACE ENGINEERING TECHNOLOGIES, INC.ROCKVILLE, MD17

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baldwin, Mitchell D Salt Lake City, UT 2 54
Berry, Gaylord L Salt Lake City, UT 7 492
Mortensen, J D Sandy, UT 11 592
Rigby, Larry D Salt Lake City, UT 4 141

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
* 4684369 Instrument for suprapubic drainage of the bladder, inserted through the urethra 35 1985
* 4869718 Transcricothyroid catheterization device 69 1988
* 4961729 Catheter insertion assembly 190 1988
 
FRESENIUS AG (1)
* 4565544 Device for introducing a catheter 16 1984
 
LAKE REGION MANUFACTURING, INC. (1)
* 4854330 Formed core catheter guide wire assembly 160 1988
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 6645178 Apparatus for inserting medical device 41 1998
 
Cannuflow, Inc. (2)
* 5527276 Flexible inflow/outflow cannula 36 1994
* 5800409 Flexible inflow/outflow cannula 80 1996
 
SCITEC K.K. (2)
* 7022110 Needle for medical use 3 2003
* 2005/0240,152 Needle for medical use 0 2003
 
JET MEDICAL, INC. (1)
* D767128 Sheath over catheter 0 2014
 
NMT MEDICAL, INC. (1)
* 2006/0106,447 Adjustable stiffness medical system 8 2005
 
Franco, Kenneth L. (3)
6936222 Methods, apparatuses, and applications for compliant membrane blood gas exchangers 2 2002
8409502 Methods, apparatuses, and applications for compliant membrane blood gas exchangers 2 2005
* 2005/0281,705 Methods, apparatuses, and applications for compliant membrane blood gas exchangers 0 2005
 
MEDTRONIC AVE, INC. (1)
* 5454785 Method of withdrawing and exchanging catheters 19 1993
 
ALUNG TECHNOLOGIES, INC. (1)
* 2005/0085,746 Retractable sheath introducer 8 2003
 
COLORADO CATHETER COMPANY, INC. (2)
* 8888747 Catheter assembly with vents 0 2006
* 2008/0091,136 Catheter assembly with vents 4 2006
 
Galt Medical Corporation (1)
D532513 Handle for an introducer sheath 5 2004
 
NOVOSTE CORPORATION (2)
* 5509908 Angular sheath introducer 24 1994
D374076 Sheath introducer 1 1994
 
NOVALUNG GMBH (4)
* 7641853 Intravenous oxygenator 0 2003
* 2005/0232,811 Intravenous oxygenator 3 2005
8419674 Intravenous oxygenator with impermeable sheath and wire grate 0 2009
* 2009/0254,022 Intravenous oxygenator 0 2009
 
C.R. BARD, INC. (2)
6394996 System for aspirating and irrigating tract wounds 39 1997
6878142 System for aspirating and irrigating tract wounds 11 2001
 
W. L. GORE & ASSOCIATES, INC. (2)
9326758 Front-end loader for prosthetic occluders and methods thereof 0 2003
* 2004/0133,230 Front-end loader for prosthetic occluders and methods thereof 12 2003
 
UNITED STATES SURGICAL,;A DIVISION OF TYCO HEALTHCARE GROUP LP (1)
* 5450842 Endoscopic surgical retractor 45 1993
* Cited By Examiner