Patents by Inventor Dennis J. Delap
Dennis J. Delap 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: 20150328361Abstract: An embolization agent for use with a therapeutic drug solution for treating diffuse diseases in a targeted tissue vessel of a patient and a process thereof is presented. This embolization agent comprises an inner core of a fast dispersing material having a diameter less than a predetermined size for the opening in the targeted tissue vessel; and an outer sphere of an embolization material encompassing the inner core and having an initial diameter to occlude the initial opening in the targeted tissue vessel. During the treatment of the disease, the outer sphere of embolization material erodes at a predetermined rate, enhancing penetration of the embolization agent into the opening in the targeted tissue vessel. The inner core disperses into the targeted tissue vessel after becoming exposed by the erosion of the embolization material of the outer sphere.Type: ApplicationFiled: July 24, 2015Publication date: November 19, 2015Inventors: Dennis J. Delap, Cleve S. Koehler
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Patent number: 8585748Abstract: A delivery system for self-expanding medical devices is provided. The delivery system includes seals around an inner catheter. The self-expanding medical device may be mounted on the seals to define an open space between the seals and the inner surface of the medical device and the exterior of the inner catheter. Vacuum pressure may be applied to the open space to reduce friction between the exterior surface of the self-expanding medical device and the inner surface of an outer catheter.Type: GrantFiled: August 4, 2011Date of Patent: November 19, 2013Assignee: Cook Medical Technologies LLCInventor: Dennis J. Delap
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Patent number: 8397666Abstract: Mandrel coating assemblies are provided, as well as methods for coating endoluminal medical devices with a therapeutic agent using the mandrel coating assembly. The endoluminal medical device may be a stent, valve or other medical device, and may include a plurality of interconnected members defining a lumen and plurality of openings positioned along the abluminal surface in communication with the lumen. The mandrel coating assembly may be configured to minimize the coating penetration on the luminal surface of the medical device and/or incidence of webbing or agglomerations of the coating within the openings between the struts.Type: GrantFiled: December 4, 2008Date of Patent: March 19, 2013Assignee: Cook Medical Technologies LLCInventor: Dennis J. Delap
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Publication number: 20120123355Abstract: An embolization agent for use with a therapeutic drug solution for treating diffuse diseases in a targeted tissue vessel of a patient and a process thereof is presented. This embolization agent comprises an inner core of a fast dispersing material having a diameter less than a predetermined size for the opening in the targeted tissue vessel; and an outer sphere of an embolization material encompassing the inner core and having an initial diameter to occlude the initial opening in the targeted tissue vessel. During the treatment of the disease, the outer sphere of embolization material erodes at a predetermined rate, enhancing penetration of the embolization agent into the opening in the targeted tissue vessel. The inner core disperses into the targeted tissue vessel after becoming exposed by the erosion of the embolization material of the outer sphere.Type: ApplicationFiled: July 30, 2010Publication date: May 17, 2012Applicant: Cook Medical TechnologiedInventors: Dennis J. Delap, Cleve S. Koehler
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Publication number: 20120078187Abstract: A sheath with improved kink resistance and/or rupture resistance is provided. The sheath includes an inner liner defining a passageway extending longitudinally therethrough. A coil is fitted around at least a part of the inner liner. An outer layer adapted to adhere to the inner liner between the windings of the coil is positioned longitudinally over the coil. Lateral edges can have inwardly curved and outwardly curved portions. Lateral edges can be further structured and arranged to define an asymmetric spacing therebetween. The asymmetric spacing is configured to improve at least one of kink resistance and rupture resistance of the sheath when in a bent configuration. The compressive and tensile strength of the polymer material can be utilized in a manner to inhibit coil segments from sliding along each other or overlapping one another, thereby preventing premature tearing of the material when the sheath is bent.Type: ApplicationFiled: September 23, 2010Publication date: March 29, 2012Applicant: Cook IncorporatedInventor: Dennis J. Delap
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Publication number: 20120041532Abstract: A delivery system for self-expanding medical devices is provided. The delivery system includes seals around an inner catheter. The self-expanding medical device may be mounted on the seals to define an open space between the seals and the inner surface of the medical device and the exterior of the inner catheter. Vacuum pressure may be applied to the open space to reduce friction between the exterior surface of the self-expanding medical device and the inner surface of an outer catheter.Type: ApplicationFiled: August 4, 2011Publication date: February 16, 2012Applicant: Cook Medical Technologies LLCInventor: Dennis J. Delap
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Publication number: 20110152715Abstract: A surgical cutting device comprises a cannula attached to an actuation mechanism that moves the cannula from a cocked position to a cutting position, a stylet including a distal portion having a sharp distal end, a sample collection region, a vacuum port, and a lumen extending from the vacuum port to the sample collection region such that the sample collection region is in fluid communication with the first vacuum port. When the cannula is in the cocked position, the sample collection region of the stylet is disposed distal of the cannula. The device also includes a fixed volume vacuum source. When cannula is in the cocked position, the vacuum port is not in fluid communication with the fixed volume vacuum source, and when said cannula is in the cutting position, the vacuum port is in fluid communication with the fixed volume vacuum source.Type: ApplicationFiled: December 22, 2009Publication date: June 23, 2011Applicant: Cook IncorporatedInventors: Dennis J. Delap, Cleve S. Koehler, Robert S. Childress, Randy Joe Myers
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Publication number: 20090312832Abstract: A slip layer delivery catheter includes a slip layer delivery catheter includes an outer tube configured with a plurality of strips extending therefrom and terminating in a plurality of distal strip end ends, the plurality of strips defined by empty slotted regions disposed between adjacent strips. An inner tube is coaxially disposed in the outer tube. The inner tube includes a proximal inner tube portion and a distal inner tube portion connected to the distal strip ends. An endoluminal medical device is collapsibly disposed over the inner tube. The plurality of strips is folded back into the outer tube, concentrically orienting the device between the outer tube and the inner tube such that at least a portion of the strips are disposed between the outer tube and the ablumenal device side.Type: ApplicationFiled: June 11, 2009Publication date: December 17, 2009Applicant: Cook IncorporatedInventor: DENNIS J. DELAP
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Publication number: 20090171453Abstract: Drug coated stents for implantation in a body vessel are provided. A stent can include a plasma treatment on the luminal surface and a protein-adherence deterring layer on at least a portion of the luminal surface. A further embodiment includes a method of manufacturing a drug coated stent. Another further embodiment includes a method of treating a vascular condition with a drug coated stent.Type: ApplicationFiled: December 28, 2007Publication date: July 2, 2009Inventors: Tara K. Adams, Jason S. Sturgeon, Manjiri A. Dhoke, Dennis J. Delap
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Publication number: 20090148590Abstract: Mandrel coating assemblies are provided, as well as methods for coating endoluminal medical devices with a therapeutic agent using the mandrel coating assembly. The endoluminal medical device may be a stent, valve or other medical device, and may include a plurality of interconnected members defining a lumen and plurality of openings positioned along the abluminal surface in communication with the lumen. The mandrel coating assembly may be configured to minimize the coating penetration on the luminal surface of the medical device and/or incidence of webbing or agglomerations of the coating within the openings between the struts.Type: ApplicationFiled: December 4, 2008Publication date: June 11, 2009Applicant: Cook IncorporatedInventor: Dennis J. Delap