Tissue expander system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4685447
SERIAL NO

06715457

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Tissue expander system including a tissue expander, an injection port, and a tube connecting the tissue expander to the injection port. The tissue expander is of a one piece molded body of a pancake to waffle like configuration. Within the one piece molded body is a member of non-stick material of a slightly smaller geometrical shape similar to that of the one piece molded body. A self-sealing valve member closes off the tube in the tissue expander after injection of a solution for expanding the tissue expander. A Dacron mesh can be embedded in members of the one piece body providing for directional expansion of the tissue expander. In an alternative embodiment, Dacron mesh can be provided in both the upper and lower members of the one piece body. An accordion configured perimeter also provides for upward directional expansion. The tissue expanders can assume any geometrical configuration, whether it be square, rectangular, circular, oval, or kidney shaped. The tissue expander can also be a small enough size for hands and toes, a miniature size for use on the face, or a large size for use on the chest or other body area. A self-sealing injection port can be domed or cylindrical, and includes a stainless steel bottom, as well as a Dacron mesh impregnated silicone top. The stainless steel bottom provides for limiting injection needle penetration and for injection port location during X-ray procedure.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PMT CorporationCHANHASSEN, MN22
PMT Inc.HOPKINS, MN0

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eastman, William J Hopkins, MN 7 482
Iversen, Alfred A Hopkins, MN 21 1123
Van, Beek Allen L Edina, MN 5 479

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
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6364892 Ballon dissector with improved visualization 11 1999
6432121 Apparatus and method for guiding placement of a minimally invasive surgical instrument 15 1999
6592602 Balloon dissection apparatus 12 1999
6168608 Apparatus and method for developing an anatomic space for laparoscopic procedures 19 1999
6632234 Apparatus and method for developing an anatomic space for laparoscopic procedures with laparoscopic visualization 38 2001
6562056 Balloon device for use in surgery and method of use 14 2001
6758853 Apparatus and methods for developing an anatomic space for laparoscopic hernia repair and patch for use therewith 7 2002
6695856 Apparatus and methods for developing an anatomic space for laparoscopic hernia repair and patch for use therewith 42 2002
6679900 Apparatus and methods for developing an anatomic space for laparoscopic hernia repair and patch for use therewith 21 2002
6953467 Apparatus and method for developing an anatomic space for laparoscopic hernia repair and patch for use therewith 4 2002
6755845 Apparatus and method for developing an anatomic space for laparoscopic hernia repair and patch for use therewith 23 2003
6866676 Apparatus and method for dissecting tissue layers 41 2003
7695487 Balloon dissection apparatus 3 2003
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7179272 Apparatus and method for dissecting tissue layers 5 2004
7214236 Apparatus and methods for developing an anatomic space for laparoscopic hernia repair and patch for use therewith 24 2004
* 2004/0236,363 Apparatus and methods for developing an anatomic space for laparoscopic hernia repair and patch for use therewith 28 2004
7297153 Apparatus and method for developing an anatomic space for laparoscopic hernia repair and patch for use therewith 6 2005
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CITY OF HOPE (1)
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UNIVERSITY OF MIAMI (2)
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8317864 Systems and methods for posterior dynamic stabilization of the spine 23 2005
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9039742 Systems and methods for posterior dynamic stabilization of the spine 9 2012
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6136258 Method of forming a co-extruded balloon for medical purposes 90 1995
* 5766201 Expandable catheter 53 1995
5797877 Medical device balloons containing thermoplastic elastomers 226 1996
6132824 Multilayer catheter balloon 80 1997
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6086556 Medical device balloons containing thermoplastic elastomers 70 1998
6482348 Method of forming a co-extruded balloon for medical purposes 51 2000
6896842 Medical device balloons containing thermoplastic elastomers 42 2000
6425908 Expandable catheter 19 2001
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7781038 Medical device balloons containing thermoplastic elastomers 11 2004
7585289 Co-extruded medical balloon 0 2005
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* Cited By Examiner