Patents by Inventor Roseminda J. White
Roseminda J. White has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210378824Abstract: An anchor for securing medical devices within a patient and/or sealing an opening in a body structure can be deployed via a catheter. The anchor may include a distal plate, and proximal plate, and a bridge portion connecting the plates. The anchor may include a tensioning member which can pull the plates together in order to secure the anchor in place and/or seal the opening in the body structure. A single anchor can be used, or multiple anchors, to secure tethers and other medical devices within a patient.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Inventors: Michael J. Popp, Roseminda J. White, Maria L. Saravia
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Patent number: 9855400Abstract: A catheter having an multilayered shaft section with a first layer formed of a polyimide first material and a second layer formed of a second material. In a presently preferred embodiment, the polyimide material is a thermoset polyimide. However, in alternative embodiments, a thermoplastic polyimide is used. The thermoset polyimide has a very high glass transition temperature (Tg) of approximately 400° C. (as measured by differential scanning calorimetry), and excellent dimensional stability at the processing temperature of polyamides commonly used in catheter components. As a result, during formation and assembly of the catheter, production of a thin polyimide layer with controlled dimensions is facilitated. The polyimide has a high modulus and provides a thin walled yet highly pushable shaft section, while the second layer provides kink resistance. In one embodiment, the second material is selected from the group consisting of a polyamide material and a polyurethane material.Type: GrantFiled: June 3, 2009Date of Patent: January 2, 2018Assignee: ABBOTT CARDIOVASCULAR SYSTEMS, INC.Inventors: Jeong S. Lee, Edwin Wang, Roseminda J. White
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Publication number: 20150290434Abstract: Multilayer balloon for a catheter comprises a first layer made of a first polymer material having a first Shore durometer hardness, a second layer made of a second polymer material having a second Shore durometer hardness greater than the first Shore durometer hardness, wherein the second layer is an inner layer relative to the first layer, and a third layer made of a third polymer material having a third Shore durometer hardness less the first Shore durometer hardness, wherein the third layer is an inner layer relative to the second layer. Method of making a multilayer balloon for a catheter and a balloon catheter are also provided.Type: ApplicationFiled: November 18, 2013Publication date: October 15, 2015Applicant: ABBOTT CARDIOVASCULAR SYSTEM INC.Inventors: Tung-Liang Lin, Jeong S. Lee, Roseminda J. White, Kenneth L. Wantink
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Patent number: 8221444Abstract: An elongated balloon catheter having a distal tip member on the distal end of the catheter and having a sleeve surrounding and secured at least to the proximal end of the distal tip member.Type: GrantFiled: November 14, 2008Date of Patent: July 17, 2012Assignee: Abbott Cardiovascular Systems Inc.Inventors: Edwin Wang, Roseminda J. White, Jeong S. Lee, Tim Kitchen
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Publication number: 20090247946Abstract: A catheter having an multilayered shaft section with a first layer formed of a polyimide first material and a second layer formed of a second material. In a presently preferred embodiment, the polyimide material is a thermoset polyimide. However, in alternative embodiments, a thermoplastic polyimide is used. The thermoset polyimide has a very high glass transition temperature (Tg) of approximately 400° C. (as measured by differential scanning calorimetry), and excellent dimensional stability at the processing temperature of polyamides commonly used in catheter components. As a result, during formation and assembly of the catheter, production of a thin polyimide layer with controlled dimensions is facilitated. The polyimide has a high modulus and provides a thin walled yet highly pushable shaft section, while the second layer provides kink resistance. In one embodiment, the second material is selected from the group consisting of a polyamide material and a polyurethane material.Type: ApplicationFiled: June 3, 2009Publication date: October 1, 2009Applicant: ADVANCED CARDIOVASCULAR SYSTEMS, INC.Inventors: Jeong S. Lee, Edwin Wang, Roseminda J. White
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Patent number: 7556634Abstract: A catheter having an multilayered shaft section with a first layer formed of a polyimide first material and a second layer formed of a second material. In a presently preferred embodiment, the polyimide material is a thermoset polyimide. However, in alternative embodiments, a thermoplastic polyimide is used. The thermoset polyimide has a very high glass transition temperature (Tg) of approximately 400° C. (as measured by differential scanning calorimetry), and excellent dimensional stability at the processing temperature of polyamides commonly used in catheter components. As a result, during formation and assembly of the catheter, production of a thin polyimide layer with controlled dimensions is facilitated. The polyimide has a high modulus and provides a thin walled yet highly pushable shaft section, while the second layer provides kink resistance. In one embodiment, the second material is selected from the group consisting of a polyamide material and a polyurethane material.Type: GrantFiled: January 18, 2005Date of Patent: July 7, 2009Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Jeong S. Lee, Edwin Wang, Roseminda J. White
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Publication number: 20090062835Abstract: An elongated balloon catheter having a distal tip member on the distal end of the catheter and having a sleeve surrounding and secured at least to the proximal end of the distal tip member.Type: ApplicationFiled: November 14, 2008Publication date: March 5, 2009Applicant: ADVANCED CARDOVASCULAR SYSTEMS, INC.Inventors: Edwin Wang, Roseminda J. White, Jeong S. Lee, Tim Kitchen
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Patent number: 7465311Abstract: An elongated balloon catheter having a distal tip member on the distal end of the catheter and having a sleeve surrounding and secured at least to the proximal end of the distal tip member.Type: GrantFiled: June 29, 2005Date of Patent: December 16, 2008Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Edwin Wang, Roseminda J. White, Jeong S. Lee, Tim Kitchen
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Patent number: 6918920Abstract: An elongated balloon catheter having a distal tip member on the distal end of the catheter having a sleeve surrounding and secured at least to the proximal end of the distal tip member.Type: GrantFiled: November 1, 2001Date of Patent: July 19, 2005Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Edwin Wang, Roseminda J. White, Jeong S. Lee, Tim Kitchen
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Patent number: 6911017Abstract: Medical devices or components thereof, and particularly intracorporeal devices for therapeutic or diagnostic uses, which are formed at least in part of a polymeric material and a ferromagnetic or paramagnetic material, so that the medical device or component thereof is visible on magnetic resonance imaging (MRI) scans. In one embodiment, the medical device is a balloon catheter having an MRI visible balloon. In a presently preferred embodiment, there is an insufficient amount of the ferromagnetic or paramagnetic material within a wall of the balloon or coated onto a wall of the balloon to make the balloon radiopaque.Type: GrantFiled: September 19, 2001Date of Patent: June 28, 2005Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Jeong S. Lee, Edwin Wang, Roseminda J. White, Jose A. Romero
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Patent number: 6863678Abstract: A catheter having an multilayered shaft section with a first layer formed of a polyimide first material and a second layer formed of a second material. In a presently preferred embodiment, the polyimide material is a thermoset polyimide. However, in alternative embodiments, a thermoplastic polyimide is used. The thermoset polyimide has a very high glass transition temperature (Tg) of approximately 400° C. (as measured by differential scanning calorimetry), and excellent dimensional stability at the processing temperature of polyamides commonly used in catheter components. As a result, during formation and assembly of the catheter, production of a thin polyimide layer with controlled dimensions is facilitated. The polyimide has a high modulus and provides a thin walled yet highly pushable shaft section, while the second layer provides kink resistance. In one embodiment, the second material is selected from the group consisting of a polyamide material and a polyurethane material.Type: GrantFiled: September 19, 2001Date of Patent: March 8, 2005Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Jeong S. Lee, Edwin Wang, Roseminda J. White
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Patent number: 6712833Abstract: A method of forming a catheter component, such as a balloon, in which the component has a thinned skirt section formed by expanding tubing to a radially enlarged outer diameter and then decreasing the inner diameter and the outer diameter of the radially enlarged skirt section before or during bonding of the skirt section to the catheter shaft. The method generally includes blow molding tubing in a balloon mold having a skirt portion with an inner diameter which is larger than an outer diameter of the thinned skirt section of the balloon, so that the balloon mold produces a balloon having a radially enlarged skirt section with a larger outer diameter than is desired for the finished balloon. By then decreasing the diameter of the radially enlarged skirt section, the resulting skirt section is thinned, to provide a balloon catheter having improved flexibility and low profile.Type: GrantFiled: August 22, 2001Date of Patent: March 30, 2004Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Jeong S. Lee, Jose A. Romero, Roseminda J. White
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Publication number: 20030055447Abstract: A catheter having an multilayered shaft section with a first layer formed of a polyimide first material and a second layer formed of a second material. In a presently preferred embodiment, the polyimide material is a thermoset polyimide. However, in alternative embodiments, a thermoplastic polyimide is used. The thermoset polyimide has a very high glass transition temperature (Tg) of approximately 400° C. (as measured by differential scanning calorimetry), and excellent dimensional stability at the processing temperature of polyamides commonly used in catheter components. As a result, during formation and assembly of the catheter, production of a thin polyimide layer with controlled dimensions is facilitated. The polyimide has a high modulus and provides a thin walled yet highly pushable shaft section, while the second layer provides kink resistance. In one embodiment, the second material is selected from the group consisting of a polyamide material and a polyurethane material.Type: ApplicationFiled: September 19, 2001Publication date: March 20, 2003Applicant: Advanced Cardiovascular systems, Inc.Inventors: Jeong S. Lee, Edwin Wang, Roseminda J. White
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Publication number: 20030055449Abstract: Medical devices or components thereof, and particularly intracorporeal devices for therapeutic or diagnostic uses, which are formed at least in part of a polymeric material and a ferromagnetic or paramagnetic material, so that the medical device or component thereof is visible on magnetic resonance imaging (MRI) scans. In one embodiment, the medical device is a balloon catheter having an MRI visible balloon. In a presently preferred embodiment, there is an insufficient amount of the ferromagnetic or paramagnetic material within a wall of the balloon or coated onto a wall of the balloon to make the balloon radiopaque.Type: ApplicationFiled: September 19, 2001Publication date: March 20, 2003Applicant: Advanced Cardiovascular Systems, Inc.Inventors: Jeong S. Lee, Edwin Wang, Roseminda J. White, Jose A. Romero