Patents Assigned to MAST Biosurgery AG
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Patent number: 8349795Abstract: Resorbable lactide polymer thin membranes are disclosed. The thin membranes are constructed of polylactide resorbable polymers, which are engineered to be absorbed into the body relatively slowly over time in order to reduce potential negative side effects. The membranes are formed to have very thin thicknesses, for example, thicknesses between about 0.010 mm and about 0.30 mm. The membranes can be extruded from polylactide polymers having a relatively high viscosity property, can be preshaped with relatively thick portions, and can be stored in sterile packages.Type: GrantFiled: July 28, 2011Date of Patent: January 8, 2013Assignee: MAST Biosurgery AGInventors: Christopher J. Calhoun, Ralph E. Holmes, Kenneth K. Kleinhenz
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Patent number: 8048444Abstract: An anti-adhesion membrane is placed onto an implant introduced into a surgical site of a patient to prevent post-surgical adhesions between the implant and surrounding tissue. The implant may comprise either biological material, such as a transplanted organ, or non-biological material such as a medical device. The membrane may be applied in a variety of ways. In one example, a membrane according to the present invention is shrink-wrapped around a pace-maker. In another example, a breast implant is spray-coated or dipped with the membrane material.Type: GrantFiled: January 11, 2007Date of Patent: November 1, 2011Assignee: MAST Biosurgery AGInventors: Christopher J. Calhoun, Ralph E. Holmes, G. Bryan Cornwall
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Patent number: 8012502Abstract: Resorbable lactide polymer thin membranes are disclosed. The thin membranes are constructed of polylactide resorbable polymers, which are engineered to be absorbed into the body relatively slowly over time in order to reduce potential negative side effects. The membranes are formed to have very thin thicknesses, for example, thicknesses between about 0.010 mm and about 0.300 mm. The membranes can be extruded from polylactide polymers having a relatively high viscosity property, can be preshaped with relatively thick portions, and can be stored in sterile packages.Type: GrantFiled: November 9, 2007Date of Patent: September 6, 2011Assignee: MAST Biosurgery AGInventors: Christopher J. Calhoun, Ralph E. Holmes, Kenneth K. Kleinhenz
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Patent number: 7947300Abstract: Resorbable lactide polymer thin membranes are disclosed. The thin membranes are constructed of polylactide resorbable polymers, which are engineered to be absorbed into the body relatively slowly over time in order to reduce potential negative side effects. The membranes are formed to have very thin thicknesses, for example, thicknesses between about 0.010 mm and about 0.300 mm. The membranes can be extruded from polylactide polymers having a relatively high viscosity property, can be preshaped with relatively thick portions, and can be stored in sterile packages.Type: GrantFiled: January 16, 2007Date of Patent: May 24, 2011Assignee: MAST Biosurgery AGInventors: Christopher J. Calhoun, Ralph E. Holmes, Kenneth K. Kleinhenz
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Publication number: 20100310628Abstract: Precut, user-shapeable, resorbable polymer micro-membranes are disclosed. The micro-membranes are constructed of resorbable polymers, which are engineered to attenuate adhesions and to be absorbed into the body relatively slowly over time. The membranes can formed to have very thin thicknesses, for example, thicknesses between about 0.010 mm and about 0.300 mm, while maintaining adequate strength. The membranes can be extruded from polylactide polymers having a relatively high viscosity property, can be stored in sterile packages, and can be preshaped with relatively high reproducibility during implantation procedures.Type: ApplicationFiled: June 9, 2009Publication date: December 9, 2010Applicant: MAST BIOSURGERY AGInventor: Erich Graf Von Waldburg-Zeil
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Patent number: 7767222Abstract: An anti-adhesion membrane is placed onto an implant introduced into a surgical site of a patient to prevent post-surgical adhesions between the implant and surrounding tissue. The implant may comprise either biological material, whcu as a transplanted organ, or non-biological material such as a medical device. The membrane may be applied in a variety of ways. In one example, a membrane according to the present invention is shrink-wrapped around a pace-maker. In another example, a breast implant is spray-coated or dipped with the membrane material.Type: GrantFiled: July 31, 2003Date of Patent: August 3, 2010Assignee: MAST Biosurgery AGInventors: Christopher J. Calhoun, Ralph E. Holmes, G. Bryan Cornwall
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Patent number: 7744915Abstract: An anti-adhesion membrane is placed onto an implant introduced into a surgical site of a patient to prevent post-surgical adhesions between the implant and surrounding tissue. The implant may comprise either biological material, such as a transplanted organ, or non-biological material such as a medical device. The membrane may be applied in a variety of ways. In one example, a membrane according to the present invention is shrink-wrapped around a pace-maker. In another example, a breast implant is spray-coated or dipped with the membrane material.Type: GrantFiled: January 12, 2007Date of Patent: June 29, 2010Assignee: MAST Biosurgery AGInventors: Christopher J. Calhoun, Ralph E. Holmes, G. Bryan Cornwall
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Patent number: 7704520Abstract: Resorbable polylactide polymer healing membranes and methods of their applications are disclosed. In a broad embodiment, the invention features methods for inducing proper tissue healing after an open heart surgery. In one embodiment, the methods includes a step of forming a patch with a healing membrane over the open pericardium to induce proper tissue healing and placement in other open heart surgery procedures to facilitate re-entry by the surgeon.Type: GrantFiled: September 10, 2003Date of Patent: April 27, 2010Assignee: MAST Biosurgery AGInventor: Christopher J. Calhoun
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Publication number: 20100003306Abstract: Precut, user-shapeable, resorbable polymer micro-membranes are disclosed. The micro-membranes are constructed of resorbable polymers, which are engineered to attenuate adhesions and to be absorbed into the body relatively slowly over time. The membranes can formed to have very thin thicknesses, for example, thicknesses between about 0.010 mm and about 0.300 mm, while maintaining adequate strength. The membranes can be extruded from polylactide polymers having a relatively high viscosity property, can be stored in sterile packages, and can be preshaped with relatively high reproducibility during implantation procedures.Type: ApplicationFiled: June 8, 2009Publication date: January 7, 2010Applicant: MAST BIOSURGERY AGInventor: Erich Graf Von Waldburg-Zeil
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Publication number: 20090291106Abstract: A block copolymer containing a) a hydrophobic biodegradable polymer, b) a hydrophilic polymer and c) at least one reactive group for covalent binding of a surface-modifying substance d) to the hydrophilic polymer b) is disclosed. Shaped bodies are formed to consist of the block copolymer and are utilized as carriers for tissue culture and active substances and for controlled release and targeted administration of active substances.Type: ApplicationFiled: July 17, 2009Publication date: November 26, 2009Applicant: MAST BIOSURGERY AGInventors: Achim Göpferich, Jörg Tessmar, Michaela Schulz, Torsten Blunk, Antonios Mikos
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Patent number: 7592017Abstract: Resorbable lactide polymer thin membranes are disclosed. The thin membranes are constructed of polylactide resorbable polymers, which are engineered to be absorbed into the body relatively slowly over time in order to reduce potential negative side effects. The membranes are formed to have very thin thicknesses, for example, thicknesses between about 0.010 mm and about 0.300 mm. The membranes can be extruded from polylactide polymers having a relatively high viscosity property, can be preshaped with relatively thick portions, and can be stored in sterile packages.Type: GrantFiled: July 31, 2003Date of Patent: September 22, 2009Assignee: MAST Biosurgery AGInventors: Christopher J. Calhoun, Ralph E. Holmes, Kenneth K. Kleinhenz