News Column

Patent Application Titled "Medical Devices and Delivery Systems for Delivering Medical Devices" Published Online

May 15, 2014



By a News Reporter-Staff News Editor at Politics & Government Week -- According to news reporting originating from Washington, D.C., by VerticalNews journalists, a patent application by the inventors Paul, David J. (Scotts Valley, CA); Sutton, Benjamin T. (Scotts Valley, CA); McCollum, Brian K. (Redwood City, CA); Brandt, Brian D. (San Jose, CA); Leung, Emma (Santa Cruz, CA); Martin, Kenneth M. (Woodside, CA); Salahieh, Amr (Saratoga, CA); Hildebrand, Daniel K. (San Francisco, CA), filed on December 31, 2013, was made available online on May 1, 2014.

The assignee for this patent application is Sadra Medical, Inc.

Reporters obtained the following quote from the background information supplied by the inventors: "Implantable medical devices can be delivered to a target location within a patient and implanted therein. For example, endoluminal delivery techniques are well known. The delivery system typically includes a sheath and/or a catheter through which the implant is delivered to the target location. The implant is generally deployed from the sheath or catheter at the target location. Some implantable devices are completely self-expanding; they self-expand when released from the sheath or catheter and do not require any further expansion after the self-expanding step. The self-expansion can occur by proximally retracting the sheath or catheter, by pushing the implantable device from the sheath or catheter, or a combination thereof. Some implantable devices, however, are configured and adapted to be actuated during or after the self-expansion step. Exemplary replacement heart valves which can be actuated after a self-expansion step can be found described in co-pending application Ser. No. 10/982,388, filed Nov. 5, 2004, and application Ser. No. 10/746,120, filed Dec. 23, 2003, the disclosures of which are hereby incorporated by reference herein. It may be advantageous to lock an expandable medical device in a fully deployed and locked configuration to secure the device in the deployed.

"During the delivery process the medical device can be actuated by the delivery system using one or more actuators. For example, an actuator (e.g., in the form of a knob on a handle of the delivery system) may be actuated (e.g., turned) to cause a component of the delivery system to move relative to another component in the delivery system or relative to the implantable device, or both. It is generally desirable to make the delivery process as easy as possible for the physician, reduce the time needed to complete the procedure, and reduce the mechanical complexity of the delivery system. In some delivery procedures, multiple components of the delivery system need to be actuated to deploy the implant. It may also be necessary to ensure that multiple steps are carried out in a certain order. What are needed are delivery systems which can simplify the deployment procedure of the medical device and/or ensure that multiple steps are performed in a certain order."

In addition to obtaining background information on this patent application, VerticalNews editors also obtained the inventors' summary information for this patent application: "One aspect of the disclosure is a medical device system. The system includes a delivery system comprising a delivery sheath, a first actuation element, and a second actuation element, an expandable medical device adapted to be percutaneously delivered to a target location in a patient through the sheath in an unlocked delivery configuration, wherein the medical device comprises an expandable portion, a first locking member and a second locking member, and the first locking member and second locking member engage in a locked configuration to maintain the medical device in a locked deployed configuration, wherein the first actuation element is reversibly coupled to the first locking member and second actuation element is reversibly coupled to the second locking member when the medical device is in the collapsed delivery configuration.

"In some embodiments the first locking member is disposed distal to the second locking member when the medical device is in the unlocked delivery configuration.

"In some embodiments the first and second actuation elements are adapted to apply axially directed forces on the first and second locking elements to move the first locking element closer to the second locking element to lock the first and second locking elements together.

"In some embodiments the system further comprises a delivery catheter adapted to be within the sheath and movable relative to the sheath, wherein the first actuation element is coupled to a distal portion of the catheter. The first actuation element can be adapted to radially expand when deployed from the delivery sheath.

"In some embodiments there are a plurality of first actuation elements and a plurality of second actuation elements, and wherein there are a plurality of first locking members and a plurality of second locking members.

"In some embodiments the method further comprises a first release actuation member which maintains the reversible coupling of the first actuation element and the first locking member. In some embodiments the system further comprises a second release actuation member which maintains the coupling between the second actuation element and the second locking member.

"In some embodiments the first actuation element is reversibly coupled to the first locking member and second actuation element is reversibly coupled to the second locking member when the medical device is in an expanded and unlocked configuration.

"One aspect of the disclosure is a medical device system. The system includes a delivery system comprising a housing disposed external to a subject, the housing comprising an actuator, wherein the delivery system is configured and arranged such that the actuator is adapted to move a first delivery system component independently of a second delivery system component, and wherein the delivery system is further configured and arranged such that actuator is adapted to move the first delivery system component and the second delivery system component at the same time.

"In some embodiments the actuator is a single actuation element and wherein the delivery system and actuator are configured such that the actuator is adapted to be moved in a singular type of motion to move the first delivery system component independently of the second delivery system component and move the second delivery system component and the second delivery system component at the same time.

"In some embodiments the actuator is configured to move the first delivery system component and the second delivery system component in a particular sequence.

"In some embodiments the housing further comprises a second actuator which is configured to uncouple the second delivery system component from a medical device.

"In some embodiments the housing further comprises an access door, the movement of which allows access to the second actuator.

"One aspect of the disclosure is a method of deploying a medical device in a patient with a delivery system. The method includes providing a delivery system comprising a housing disposed external to the patient, wherein the housing comprises an actuator, actuating the actuator to move a first delivery system component independently of a second delivery system component, and actuating the actuator to move the first delivery system component and the second delivery system component at the same time.

"In some embodiments actuating the first and second delivery system components comprises actuating the actuator with a singular type of motion.

"In some embodiments the actuating steps actuate the first and second delivery system components in a particular sequence."

For more information, see this patent application: Paul, David J.; Sutton, Benjamin T.; McCollum, Brian K.; Brandt, Brian D.; Leung, Emma; Martin, Kenneth M.; Salahieh, Amr; Hildebrand, Daniel K. Medical Devices and Delivery Systems for Delivering Medical Devices. Filed December 31, 2013 and posted May 1, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=1339&p=27&f=G&l=50&d=PG01&S1=20140424.PD.&OS=PD/20140424&RS=PD/20140424

Keywords for this news article include: Sadra Medical Inc.

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Source: Politics & Government Week


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