WO2008027862A3 - Ossicular prostheses fabricated from shape memory polymers - Google Patents

Ossicular prostheses fabricated from shape memory polymers Download PDF

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Publication number
WO2008027862A3
WO2008027862A3 PCT/US2007/076945 US2007076945W WO2008027862A3 WO 2008027862 A3 WO2008027862 A3 WO 2008027862A3 US 2007076945 W US2007076945 W US 2007076945W WO 2008027862 A3 WO2008027862 A3 WO 2008027862A3
Authority
WO
WIPO (PCT)
Prior art keywords
shape memory
prostheses
reshaped
prosthesis
capture
Prior art date
Application number
PCT/US2007/076945
Other languages
French (fr)
Other versions
WO2008027862A2 (en
Inventor
Robert Brosnahan
Original Assignee
Grace Medical Inc
Robert Brosnahan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grace Medical Inc, Robert Brosnahan filed Critical Grace Medical Inc
Publication of WO2008027862A2 publication Critical patent/WO2008027862A2/en
Publication of WO2008027862A3 publication Critical patent/WO2008027862A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/18—Internal ear or nose parts, e.g. ear-drums
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/18—Internal ear or nose parts, e.g. ear-drums
    • A61F2002/183—Ear parts

Abstract

Ossicular replacement prostheses are manufactured from a non-biodegradable shape memory polymer. Such prostheses can include TORPs, PORPs, and incudo-stapedial joints (ISJs). The prostheses are reshaped upon application of a stimulus to capture a portion of one or more ossicles. The force of capture of a reshaped polymeric prosthesis is less than a comparable reshaped shape memory alloy prosthesis and thereby prevents recipient discomfort and/or pressure induced necrosis of the bone. In addition, biocompatible shape memory polymers can be designed with recoverable strain that is orders of magnitude higher than shape memory alloys. Furthermore, prostheses can be manufactured in a single size and easily trimmed or otherwise modified by the surgeon during the implantation procedure to tailor the prosthesis in size and/or shape for the particular anatomy. Such modification does not negatively effect the ability of the prostheses to engage the ossicle.
PCT/US2007/076945 2006-08-30 2007-08-28 Ossicular prostheses fabricated from shape memory polymers WO2008027862A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82391406P 2006-08-30 2006-08-30
US60/823,914 2006-08-30

Publications (2)

Publication Number Publication Date
WO2008027862A2 WO2008027862A2 (en) 2008-03-06
WO2008027862A3 true WO2008027862A3 (en) 2008-07-03

Family

ID=39136769

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/076945 WO2008027862A2 (en) 2006-08-30 2007-08-28 Ossicular prostheses fabricated from shape memory polymers

Country Status (2)

Country Link
US (1) US20080058927A1 (en)
WO (1) WO2008027862A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8262729B2 (en) * 2008-07-08 2012-09-11 Enteroptyx Dynamic ossicular prosthesis
US8808294B2 (en) * 2008-09-09 2014-08-19 William Casey Fox Method and apparatus for a multiple transition temperature implant
DE102009016468B3 (en) * 2009-04-10 2009-12-24 Heinz Kurz Gmbh Medizintechnik Ossicular prosthesis for replacing or bridging element of human ossicular chain, has partial branches deformable permanently and plastically, and folded into multiple straps transverse to longitudinal axis, before deformation of branches
US20110009961A1 (en) * 2009-07-13 2011-01-13 Gyrus Ent, L.L.C. Radiopaque middle ear prosthesis
US8834567B2 (en) * 2011-08-31 2014-09-16 Mark Matthew Scheurer Middle ear prosthesis having discrete projections for purposes of ossicular attachment
DE102015113138B3 (en) * 2015-08-10 2016-07-21 Heinz Kurz Gmbh Medizintechnik Laser-activated variable-length ossicle prosthesis
US10687937B2 (en) 2016-11-08 2020-06-23 Jack M. Kartush Systems and methods for performing ossicular chain reconstructions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6203571B1 (en) * 1997-10-10 2001-03-20 Nogitek Middle ear prosthesis
US20010037151A1 (en) * 1999-01-19 2001-11-01 Knox Glenn W. Otologic prosthesis
US20060095129A1 (en) * 2004-10-29 2006-05-04 Reitan Harlan J Titanium incudo-stapedial joint prosthesis

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Publication number Priority date Publication date Assignee Title
US3620212A (en) * 1970-06-15 1971-11-16 Robert D Fannon Jr Intrauterine contraceptive device
US3711869A (en) * 1970-08-27 1973-01-23 Richards Mfg Co Prosthesis for the inner ear
US3722003A (en) * 1971-05-18 1973-03-27 Xomox Corp Molded l-shaped lenticular prosthesis
US3838468A (en) * 1973-01-15 1974-10-01 Richards Mfg Co Prosthesis and membrane structure to replace the stapes
US3931648A (en) * 1975-01-08 1976-01-13 Richards Manufacturing Company Stapedial prosthesis
US4233690A (en) * 1978-05-19 1980-11-18 Carbomedics, Inc. Prosthetic device couplings
US4665906A (en) * 1983-10-14 1987-05-19 Raychem Corporation Medical devices incorporating sim alloy elements
US4655776A (en) * 1984-01-12 1987-04-07 Oto Enterprises, Inc. Prostheses for ossicular reconstruction
US5171240A (en) * 1990-06-22 1992-12-15 Yuthaphong Hanwong Instrument for implantation of a prosthesis in a stapedectomy procedure
US5306299A (en) * 1992-09-21 1994-04-26 Smith & Nephew Richards, Inc. Middle ear prosthesis
US5433749A (en) * 1993-03-08 1995-07-18 Clifford; Jerome R. Apparatus for enhancing hearing in an ear
IL121316A (en) * 1997-07-15 2001-07-24 Litana Ltd Implantable medical device of shape memory alloy
PL342996A1 (en) * 1998-02-23 2001-07-16 Mnemoscience Gmbh Shape memory polymers
US6168625B1 (en) * 1998-12-01 2001-01-02 Anthony D. Prescott Adjustable length prosthesis useful for ossicular replacement and reconstruction
AU2002243270B2 (en) * 2000-10-25 2006-03-09 Warsaw Orthopedic, Inc. Vertically expanding intervertebral body fusion device
US20030097178A1 (en) * 2001-10-04 2003-05-22 Joseph Roberson Length-adjustable ossicular prosthesis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6203571B1 (en) * 1997-10-10 2001-03-20 Nogitek Middle ear prosthesis
US20010037151A1 (en) * 1999-01-19 2001-11-01 Knox Glenn W. Otologic prosthesis
US20060095129A1 (en) * 2004-10-29 2006-05-04 Reitan Harlan J Titanium incudo-stapedial joint prosthesis

Also Published As

Publication number Publication date
WO2008027862A2 (en) 2008-03-06
US20080058927A1 (en) 2008-03-06

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