Senorx, Inc.

View Point Medical, Inc.

Therox, Inc.

Novatrix, Inc.

Covidien LP

Pilot Cardiovascular Systems, Inc.

John Merritt

Paul Lubock

Michael L Jones

William Alan Blair

Mike Jones

Martin Victor Shabaz

Jason H Safabash

Seth Arnold Foerster

Vincent Divino

Derek J Daw

Paul J Zalesky

Adib G Daoud

Soonkap Hahn

Mark S Buhr

William C Homet

Gary R Hammerslag

Mark Nielsen

John T Buhler

Pat Roycroft

Steven T Saville

Tom Kane

John Buhler

Jason J Safabash

Imaging marker embodiments that may be used for marking sites within a patient's body are discussed. Some imaging marker embodiments are particularly useful for imaging with ultrasound imaging modalities and some imaging marker embodiments may be suitable for imaging with multiple modes of imaging modalities. Method embodiments for making and using imaging markers are also discussed herein.

Multi-mode imaging markers

Aspects of the invention relate to composite markers that employ a gel carrier to carry two or more contrast materials, each detectable by a detection modality different than one another. Kits and methods for forming these composite markers and methods of marking a target site in a mammalian subject employing these composite markers are also discussed herein.

Composite tissue markers detectable via multiple detection modalities

Composite markers employ a gel carrier to carry at least one radiopaque element (e.g., wire or band or clip) and one or more other contrast materials, each detectable by a detection modality different than one another. Methods for forming these composite markers and methods of marking a target site in a mammalian subject employing these composite markers are also discussed herein.

Composite tissue markers detectable via multiple detection modalities including radiopaque element

Sponges suitable for use in medical procedures may include radio-opaque material, and arranged to allow individual sponges in a set, packet or package of sponges to be readily discernable using imaging technology (e.g., X-ray) to allow accurate counting of sponges. The sponges may include wireless transponders, for instance LC resonant and/or RFID transponders. Gauze or similar material is folded to enhance the ability to count the sponges. Sponges are counted and banded or packaged to provide assurance that the count is accurate.

Detectable sponges for use in medical procedures and methods of making, packaging, and accounting for same

An intracorporeal marker system includes a tissue marker pellet comprised of a polysaccharide material. The intracorporeal marker system may also include a fibrous marker of bioabsorbable fibers. In one embodiment, for example, an outer layer of bioabsorbable fibers is disposed around at least part of an inner core of bioabsorbable fibers.

Intracorporeal marker and marker delivery device

A marker delivery device includes an elongated delivery cannula which has a distal end section, an inner lumen and a discharge opening in the distal end section in communication with the inner lumen. A plunger is slidably disposed within the inner lumen of the elongated delivery cannula. The plunger has a distal end. At least one elongated fibrous marker body is pre-formed prior to being inserted into the inner lumen of the elongated delivery cannula. The at least one elongated fibrous marker body is slidably disposed within the inner lumen of the elongated delivery cannula at a location distal to the distal end of the plunger. The pre-formed at least one elongated fibrous marker body includes a fibrous material compressed and impregnated with a binding agent and freeze dried in the compressed condition. A releasable plug is disposed within a distal portion of the inner lumen and distal to the at least one elongated fibrous marker body.

Marker delivery device with releasable plug

A marker delivery device includes an elongated delivery cannula which has a distal end section, an inner lumen and a discharge opening in the distal end section in communication with the inner lumen. At least one elongated fibrous marker body is slidably disposed within the inner lumen of the elongated delivery cannula. The at least one elongated fibrous marker body includes a plurality of bioabsorbable polymeric strands. The strands are compressed to a compressed configuration and bound together in the compressed configuration with a polymer binding agent prior to insertion into the elongated delivery cannula.

An intracorporeal marker delivery device includes a delivery tube which has a distal tip, a discharge orifice and an inner bore extending to the discharge orifice. A plug is releasably secured within the inner bore. The plug may itself serve as a marker, and may be the sole marker. Markers may be positioned proximal to the plug, and may be detectable by ultrasound, X-ray, magnetic resonance imaging, and other imaging devices, and may include bioactive elements.

Plugged tip delivery tube for marker placement

An elongated intracorporeal remotely detectable marker includes a core of bioabsorbable fibers. An outer jacket of bioabsorbable fibers is disposed around at least part of the core. In one embodiment, for example, the core has a longitudinal extent and a pair of opposed ends, and the outer jacket is disposed around the longitudinal extent of the core, with the pair of opposed ends being exposed.

A marker delivery device includes an elongated delivery cannula which has a distal end section, an inner lumen and a discharge opening in the distal end section in communication with the inner lumen. At least one elongated fibrous marker body is slidably disposed within the inner lumen of the elongated delivery cannula. The at least one elongated fibrous marker body includes a plurality of bioabsorbable polymeric strands. The strands are compressed to a compressed configuration and bound together in the compressed configuration with a polymer binding agent prior to insertion into the elongated delivery cannula. A releasable plug is disposed within a distal portion of the inner lumen and distal to the at least one elongated fibrous marker body so as to at least partially occlude the discharge opening in the distal end section.

An intracorporeal marker delivery device includes a delivery tube which has a tapered, tissue penetrating distal tip, an inclined discharge orifice in the tapered distal tip and an inner bore extending to the orifice. A plurality of remotely detectable markers, which are formed at least in part of bioresorbable material, are slidably disposed within the inner bore. A plug having an inclined exposed surface, which is formed at least in part of bioresorbable material, is releasably secured within the inner bore of the delivery tube distal to the plurality of remotely detectable markers disposed therein to retain the plurality of remotely detectable markers within the inner bore. The plug is disposed at least in part within the inclined discharge orifice. A plunger is slidably disposed within the inner bore proximal to the plurality of remotely detectable markers.

The invention is directed to marker delivery devices and methods of using such devices. The delivery devices embodying features of the invention include a delivery cannula with a discharge opening and a releasable plug disposed in the inner lumen of the delivery cannula so as to at least partially occlude the discharge opening. The releasable plug prevents ingress of tissue, body fluids and the like into the bore of the tube, and prevents the premature discharge of any markers proximal to the releasable plug from passing through the discharge opening before the distal end of the cannula is properly positioned at a desired location within a patient's body. The releasable plug preferably has an MRI detectable element. Preferably, at least one remotely detectable marker mass is provided in the inner lumen of the cannula proximal to the releasable plug.

The invention provides marker delivery devices, assemblies, and methods. Assemblies embodying features of the invention include marker delivery devices having a delivery tube with an orifice, markers, and a plug releasably disposed in the tube occluding the orifice. The plug prevents markers from passing through the orifice before the marker is to be placed at a desired location within a patient's body, prevents ingress of tissue into the bore of the tube, and allows markers to pass out of the orifice when marker delivery is desired. Guidance of a delivery tube to a desired location within a patient's body may include the use of an imaging device, with or without the use of a guide cannula. The plug may itself serve as a marker, and may be the sole marker. Markers may be detectable by ultrasound, X-ray, magnetic resonance imaging, and other imaging devices, and may include bioactive elements.

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San Clemente, CA, United States of America

John Merritt