Body Pierced By Tubular Cutter Or Rod-type Punch Patents (Class 600/567)
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Publication number: 20110251517Abstract: A needle assembly is able to collect a sample of biological material in a needle of the assembly. The needle assembly has a safety shield capable of being moved on the needle assembly to cover a sharp end of the needle assembly. The safety shield includes a tubular housing. The shield can be locked in place over the sharp end by a locking mechanism. The assembly further includes a reset member selectively operatively engageable with the locking mechanism for releasing the locking mechanism to permit the tubular housing to be moved away from the sharp end of the needle assembly. The safety shield further includes a resilient membrane including a thin sheet of resilient material the entirety of which extending substantially in a plane extending across the tubular housing.Type: ApplicationFiled: June 20, 2011Publication date: October 13, 2011Applicant: TYCO HEALTHCARE GROUP LPInventors: David Rork Swisher, Kenneth M. Breitweiser
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Patent number: 8034003Abstract: Methods and device for extracting and collecting tissue, which can be used for example in tissue engineering and grafting applications, are disclosed. In one embodiment, a device can include an outer tube. A rotatable shaft can be disposed within the outer tube can have a tissue harvesting tip formed on its distal end, the tissue harvesting tip being effective to excise tissue upon rotation thereof. A tissue collection device can be included to receive and collected excised tissue, and the tissue collection device can indicate the amount of tissue collected therein. For example, the tissue collection device can include a straining element which collects excised tissue and an indicator by which to assess the amount of collected tissue. In some embodiments, the tissue collection device can translate to indicate the amount of collected tissue.Type: GrantFiled: March 27, 2008Date of Patent: October 11, 2011Assignee: DePuy Mitek, Inc.Inventors: Robert S. Pesce, Shelby Cook, Kristian DiMatteo, Kevin Ranucci, Robert Boock
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Publication number: 20110245727Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245716Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245723Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245718Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245721Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245720Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245724Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245717Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245719Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245726Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245725Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110245722Abstract: A biopsy device includes a coring cannula, a retract stylet, and a localization needle. The coring cannula has a longitudinal axis and a shaft centered on the axis. The stylet has a tip containing at least one blade and a central passage. The localization needle has a channel and is slidably disposed within the central passage. A drive mechanism rotates the cannula and moves the cannula in a direction parallel to the longitudinal axis of the cannula. A guide element has a first end and a second end and is slidably disposed within the channel of the localization needle. The guide element is movable from a first position to a second position within the localization needle.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Inventors: Martin L. Flatland, Bamdad Hassanpourgol
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Publication number: 20110237976Abstract: A biopsy device assembly performs a biopsy of an anatomical tissue of a patient. The biopsy device assembly includes a housing and a biopsy device that extends out of the housing and that collects and cuts anatomical tissue from the patient. The biopsy device assembly further includes a hemostatic agent removably housed in the biopsy device. Moreover, the assembly includes an actuator assembly that moves the biopsy device relative to the housing from a first position to an extended position such that the biopsy device collects and cuts the anatomical tissue from the patient. The actuator assembly also retracts the biopsy device relative to the housing toward a retracted position. Furthermore, the assembly includes an ejection device that ejects the hemostatic agent from the biopsy device as the actuator assembly retracts the biopsy device toward the retracted position.Type: ApplicationFiled: December 3, 2009Publication date: September 29, 2011Applicant: The Regents of the University of MichiganInventors: William F. Weitzel, Anne E. Kirkpatrick, David A. Thompson, Todd Addis, Christopher M. Welch, Grant H. Kruger, Philip M. Wong, Panduranga S. Rao
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Patent number: 8025626Abstract: Biopsy forceps have a handle located at the proximal end and an end jaw assembly located at the distal end. The handle and jaw assembly are connected by a flexible catheter tube. The handle includes a body portion and an actuator portion that controls the jaw assembly. The actuator is axially displaced relative to the handle body to open and close the pair of opposed jaws. The jaw assembly consists of a housing composed of a first and second portion, which holds the pair of opposed jaws and a distal actuator. The distal actuator is controlled by the handle actuator which controls the jaws positioning. A locking mechanism is attached to the handle actuator and can lock the jaws in an open position. To close the jaws, the locking mechanism can be pushed to its unlocked position and the actuator slid to its back position.Type: GrantFiled: December 4, 2008Date of Patent: September 27, 2011Inventor: Ken Freeman
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Patent number: 8025627Abstract: Reusable biopsy forceps having a handle located at the proximal end and an end jaw assembly located at the distal end. The handle and jaw assembly are connected by a flexible catheter tube. The handle includes a handle body, fluid inlet assembly, and catheter tube coupling. The jaw assembly consists of a housing composed of a first and second portion, which holds a pair of opposed jaws and a distal actuator. The distal actuator is connected to the handle by an operating cable located inside the catheter tube. The handle controls the jaws and contains a flush port to sterilize the interior of the catheter tube and the end jaw assembly. The reusable biopsy forceps may contain a locking mechanism that is attached to the arms of the biopsy forceps handle in order to aid in taking tissue samples.Type: GrantFiled: December 4, 2008Date of Patent: September 27, 2011Inventor: Ken Freeman
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Publication number: 20110230736Abstract: Described here are devices, systems, and kits for delivering substances to tissues. The devices generally include one or more chambers (102) and a reservoir (108) within each chamber. The reservoir may locally deliver a microdose amount of a substance to a target tissue. In some variations, a microdose amount is used in early human studies, e.g., before a phase I clinical trial, to evaluate the effect of the substance on a target tissue, or to obtain pharmacokinetic or metabolic data. In other variations, a microdose amount is used to locally treat a medical condition. In yet other variations, a microdose amount is used to locally deliver a contrast agent for a structural or functional imaging procedure. Methods for delivering and retrieving the devices from the target tissue are also described.Type: ApplicationFiled: August 20, 2009Publication date: September 22, 2011Inventors: Robert I. Tepper, Russell Hirsch, Jason E. Fuller, Jessica L. Duda, Craig Muir, Jeffrey S. Ross, J. Christopher Flaherty
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Publication number: 20110224577Abstract: A biopsy device for use in excising tissue from a human body includes an outer member, an inner member and a rotary drive means for rotating the inner member with respect to the outer member. The outer member includes a cylindrical outer body portion, an outer cutout portion defined in the outer body portion, an acute outer knife edge portion formed to extend along an edge of the outer cutout portion and a cutting tip provided at a tip end of the outer body portion. The inner member includes an inner body portion inserted into the outer member, an inner cutout portion defined in the inner body portion to obliquely extend with respect to a longitudinal direction of the inner body portion and an acute inner knife edge portion formed to extend along an edge of the inner cutout portion.Type: ApplicationFiled: November 17, 2009Publication date: September 15, 2011Inventor: Hee Boong Park
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Publication number: 20110224576Abstract: The present invention is directed to methods and devices for tissue collection and analysis, and particularly to methods and devices for collecting, preserving and analyzing biopsy samples. In one aspect, a method for collecting a tissue sample includes disposing a collection device proximate and/or within a tissue, such as of a body, drawing in at least a portion of the tissue into the collection device, adhering the at least a portion of the tissue to at least a portion of the collection device and separating the sample and collection device from the remainder of the tissue and/or body. In general, the method of adhering the tissue sample to the collection device may also preserve the tissue sample, such as, for example, by altering the temperature of the tissue sample.Type: ApplicationFiled: March 12, 2011Publication date: September 15, 2011Applicant: BIOTEX, INC.Inventors: George W. Jackson, Charles Houssiere
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Patent number: 8012101Abstract: The invention relates to a punching tool for taking a biological sample from a filter using punching, the punching tool comprising a punch and a die provided with a punching channel for conveying the sample from the upper surface of the die towards the lower end of the die that includes a guidance means of the sample comprising a guidance channel arranged as an extension of the punching channel for receiving the sample from the punching channel, the diameter of the guidance channel is 1.02 to 2× the diameter of the punch and is greater than the diameter of the punching channel, and at the connecting point with the punching channel the guidance channel forms a shoulder and broadens towards the free end of the guidance means.Type: GrantFiled: November 23, 2005Date of Patent: September 6, 2011Assignee: Wallac OyInventor: Kauko Lehtinen
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Patent number: 8012102Abstract: A method for extracting a tissue sample includes altering the pressure inside the lumen of a cannula to facilitate extraction of a tissue sample from the cannula. One aspect of the invention includes a biopsy apparatus comprising a valve for controlling the pressure inside the lumen of the cannula. In one variation, the pressure/vacuum generating device is connected to a cannula with a closed distal end and an orifice located on a circumferential surface of said cannula. A cutting sheath is slidably disposed over said cannula. The valve may be provided between the pressure/vacuum generating device and the cannula to control the pressure within the lumen of the cannula.Type: GrantFiled: March 1, 2007Date of Patent: September 6, 2011Assignee: C. R. Bard, Inc.Inventors: Adam B. McCullough, Robert W. Kalis
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Publication number: 20110208088Abstract: A biopsy device includes a body portion, a cannula, a cutter, and a tissue stop having a proximal face. The cannula has a transverse aperture that is defined in part by a proximal edge and a distal edge. The cutter is movable to a distal position to sever tissue protruding through the transverse aperture. A tip at the distal end of the cannula has a sharp edge that extends proximally to a longitudinal position that is proximal to the longitudinal position of the distal edge of the transverse aperture. The sharp edge of the tip extends to a longitudinal position that is proximal to the longitudinal position of the distal cutting edge of the cutter when the cutter is at the distal position. The sharp edge of the tip extends to a longitudinal position that is proximal to the longitudinal position of the proximal face of the tissue stop.Type: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Inventors: Jessica P. Leimbach, Edward A. Rhad
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Publication number: 20110208089Abstract: A biopsy device includes coaxially disposed inner and outer needles in which the outer needle tip is configured for obtaining a tissue sample. The inner surface of the outer needle includes a tissue retention feature which may include a countersink and/or a feature formed in the inner surface. The device may be configured such that the inner needle does not extend past a certain point within the outer needle.Type: ApplicationFiled: December 16, 2010Publication date: August 25, 2011Applicant: PROMEX TECHNOLOGIES, LLCInventors: Herbert Alan Sundheimer, Dan C. Ireland
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Publication number: 20110208087Abstract: A device comprises a needle, probe, holster, and tissue collection chamber. A motor simultaneously powers a vacuum pump, translates and rotates a cutter, and translates a plunger. The needle includes a piercing tip and an interior shelf that divides the needle into a cutter lumen and lateral lumen. The cutter and shelf include apertures configured to mince a portion of a tissue specimen that has been severed by the cutter and forced through the apertures by compressive force from the plunger as well as vacuum force. The apertures of the shelf and the apertures of the rotating cutter cooperate to shear the tissue being compressed by the plunger. The minced tissue is then transported to the tissue collection chamber under vacuum force with the assistance of a fluid flush. Collected minced tissue may then be further processed as desired for a given medical treatment or procedure.Type: ApplicationFiled: February 22, 2010Publication date: August 25, 2011Inventors: Michael J. Trezza, II, John A. Hibner, Joseph C. Hueil, Patrick A. Mescher
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Publication number: 20110201966Abstract: A method for maintaining access to a biopsy site within a patient, includes forming a passageway from an opening in an exterior site on the patient to a desired location for a biopsy specimen within the patient; removing a tissue specimen from the desired location thereby leaving a biopsy cavity; providing a temporary catheter having an elongate shaft, a flexible proximal shaft section, and a distal shaft section having a cavity filling member thereon; inserting the cavity filling member on the distal shaft section into the biopsy cavity; inflating the cavity filling member after inserting the cavity filling member within the biopsy cavity, but before closing the opening, using the flexible proximal shaft section; placing the flexible proximal shaft section at an intracorporeal location; and closing the opening so as to seal the passageway.Type: ApplicationFiled: April 27, 2011Publication date: August 18, 2011Inventors: Paul Lubock, Michael L. Jones
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Publication number: 20110201965Abstract: A Magnetic Resonance Imaging (MRI) compatible core biopsy instrument includes a detachable probe assembly to enhance the accuracy of placement at a biopsy site and avoid repeated insertions, even when used in a closed MRI magnet bore. In particular, the detachable probe assembly is configured for attachment to a localization fixture for accurate stereotopic placement to the desired biopsy site. While disengaged, dual lumens (vacuum and cutter) of the probe assembly allow applying vacuum to, draining fluid from, and insertion of fluids to the biopsy site. The biopsy instrument handle readily engages to the probe assembly for taking samples. Features are included for visual indications of the position of the cutter, prevention of disengagement when the cutter is advanced into the probe assembly, and a tolerance take-out feature that minimizes the deadzone gap at a distal end of the probe assembly, allowing samples to be taken close to sensitive tissues.Type: ApplicationFiled: February 18, 2010Publication date: August 18, 2011Inventors: John Anthony Hibner, Thomas Edward Albercht, Richard F. Schemberger, David Denis Beck
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Patent number: 7998086Abstract: Devices and methods are provided for extracting and macerating tissue, and optionally for depositing the tissue onto a tissue scaffold. The device generally includes an outer tube having a substantially open distal end that is adapted to be placed on and preferably to form a seal with a tissue surface, and a shaft rotatably disposed within the outer tube and movable between a first, proximal position in which the shaft is fully disposed within the outer tube, and a second, distal position in which a portion of a distal end of the shaft extends through the opening in the distal end of the outer tube. The device also includes a tissue harvesting tip formed on the distal end of the shaft that is effective to excise a tissue sample when the shaft is moved to the distal position, and a cutting member that is coupled to the shaft at a position proximal to the tissue harvesting tip. The cutting member is effective to macerate a tissue sample excised by the tissue harvesting tip.Type: GrantFiled: September 29, 2009Date of Patent: August 16, 2011Assignee: Depuy Mitek, Inc.Inventors: Robert J. Boock, Nathan S. Cauldwell, Keith M. Orr
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Publication number: 20110196259Abstract: A sensor is mounted to a needle at a location proximate to a tip of the needle. The sensor senses tissue density of tissue in contact with the tip as the needle passes through the tissue. Further, the sensor detects a change in tissue density as the tip passes from one tissue to a target tissue.Type: ApplicationFiled: April 18, 2011Publication date: August 11, 2011Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Yogesh B. Gianchandani, Tao Li, Roma Y. Gianchandani
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Publication number: 20110190661Abstract: Tissue splitting biopsy devices and methods use a needle portion and a sheath portion that are configured such as to allow simultaneous sectioning of a tissue to produce two tissue samples with corresponding surfaces using motion of the needle portion relative to the sheath portion. Most preferably, the needle portion has a chisel blade tip and at least two cavities opposite to each other and at the same distance from the tip, while the sheath portion has a sharpened front edge.Type: ApplicationFiled: October 24, 2008Publication date: August 4, 2011Applicant: EPITOME PHARMACEUTICALS LIMITEDInventors: Paul T. Wegener, Ryochi Enishi, Saverio Bettuzzi, Takeyoshi Sakashita
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Publication number: 20110190662Abstract: A device for needle biopsy and delivery of a diagnostic or therapeutic agent is presented. The device includes a handle member having proximal and distal portions. A proximal handle member is disposed to the proximal portion of the handle member and a distal handle member is disposed to the distal portion of the handle member. A sheath lumen is disposed within the handle member and extends from the distal portion of the handle member. A needle housing member is partially disposed to the proximal portion of the handle member and a needle is disposed within the sheath lumen. The needle housing member includes one or more ports for introducing an agent or a device into the housing member. The needle can include an agent or a device disposed at a distal portion thereof.Type: ApplicationFiled: February 17, 2011Publication date: August 4, 2011Applicant: BEACON ENDOSCOPIC CORPORATIONInventor: John McWeeney
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Publication number: 20110190814Abstract: A method and system for conducting surgical procedures is disclosed.Type: ApplicationFiled: February 4, 2010Publication date: August 4, 2011Inventor: Joseph L. Mark
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Patent number: 7988643Abstract: The invention relates to a biopsy needle for obtaining material for histological examination of body tissue, in particular, of bone marrow, or for the isolation, culture and modification of body cells, comprising a cannula with a cutting edge and a manual turning handle and a stylet running in the cannula. At the end of the cannula is an internal thread and preferably an outer thread. An easily visible marking is preferably provided on the manual turning handle. On withdrawing the biopsy needle the biopsy sample is thus held in position in the cannula and the advancing is precisely controllable.Type: GrantFiled: January 19, 2006Date of Patent: August 2, 2011Assignee: LTS Lohmann Therapie-Systeme AGInventors: Hans-Rainer Hoffmann, Rudolf Matusch
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Publication number: 20110184312Abstract: A bone tissue extracting device operable with one hand comprises an ergonomic handle containing a forward and reverse cannula driver and a vacuum source. The device uses a disposable sterile single use cannula/trocar and disposable vacuum containers. The device and method for use improve the ability of a physician to locate accurately the target tissue in a patient, increase the probability that one or more suitable samples will be recovered from the patient at a single attempt, decrease attendant tissue trauma and patient discomfort, and decrease the chance of infection.Type: ApplicationFiled: August 14, 2009Publication date: July 28, 2011Inventor: Antonio Moran, JR.
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Publication number: 20110184313Abstract: A medical device such as a biopsy needle or probe has an integrated piezoelectric transducer. A power source is electrically coupled to the piezoelectric transducer. The power source is configured to generate a signal that causes the piezoelectric transducer to generate heat for cauterizing tissue. A signal analyzer receives a signal from the piezoelectric transducer, or from a sensor integrated into the biopsy needle or probe, to determine the extent of the cauterization.Type: ApplicationFiled: January 20, 2011Publication date: July 28, 2011Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Yogesh B. Gianchandani, Karthik Visvanathan
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Patent number: 7981050Abstract: Instruments for performing percutaneous biopsy procedures are disclosed, which have advantageous features for improving functionality and performance over prior art devices. These instruments comprise two types, single-use devices, and multiple-use devices having active tissue capture capability. Improved features include the ability to retrieve and evaluate multiple tissue samples during a single insertion procedure, without physical handling of the samples, as well as constructional features, such as a molded tissue cassette housing, variant vacuum port embodiments suited for different tissue environments, and a method for backflushing the instrument to remove biological debris, among others.Type: GrantFiled: February 6, 2007Date of Patent: July 19, 2011Assignee: Devicor Medical Products, Inc.Inventors: Mark A. Ritchart, J. Michael Stuart, Fred H. Burbank, Kenneth M. Galt
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Patent number: 7981051Abstract: The invention is directed to a system and method for separating and collecting one or more tissue specimens from a target site within a patient and flushing the specimen to remove blood, debris and the like before the specimen is removed from the biopsy device. The flow of flushing fluid to the tissue collector is preferably controlled to coincide with delivery of one or more specimens to the collecting tray or basket of the device or after the receipt of the specimen within the tissue collector to ensure that the fluid is applied to a fresh specimen. The tissue tray or basket within the tissue collector has an open or foraminous portion to facilitate removal of fluid, such as the applied fluid and blood, and other debris from the tissue specimens on the tray. Vacuum is provided within the tissue collector, preferably under the tray to remove fluid and debris from the collector interior.Type: GrantFiled: November 5, 2008Date of Patent: July 19, 2011Assignee: Senorx, Inc.Inventors: Richard L. Quick, Martin V. Shabaz, Frank R. Louw, Paul Lubock, Jason H. Safabash
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Patent number: 7981052Abstract: An embodiment of the invention includes a device for collecting body tissue. The device may include an inner member comprising a hollow portion to collect body tissue and a distal end configured to both penetrate body tissue and define an opening of the hollow portion. The device may further include an outer member, co-axially and slidably disposed around the exterior of the inner member, comprising a distal end portion. The distal end portion of the outer member may be configured to penetrate body tissue, prevent body tissue from exiting the hollow portion of the inner member, and allow the distal end of the inner member to extend beyond the distal end of outer member. The opening of the hollow portion of the inner member may be disposed in a plane that is not perpendicular to the longitudinal axis of the inner member.Type: GrantFiled: October 10, 2006Date of Patent: July 19, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Srinivas Nishtalas, Tim E. Ward, James S. Bates, Stephane Gobron
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Patent number: 7976498Abstract: A needle assembly is able to collect a sample of biological material in a needle of the assembly. The needle assembly has a safety shield capable of being moved on the needle assembly to cover a sharp tip of the needle assembly. The shield can be locked in place over the sharp tip by a locking mechanism. The assembly further includes an obturator that can be inserted into the needle to remove the sample from the needle. A reset member, which in some embodiments is associated with the obturator, is capable of operatively engaging the locking mechanism to release the locking mechanism and allow the shield to be moved away from the sharp tip.Type: GrantFiled: April 27, 2007Date of Patent: July 12, 2011Assignee: Tyco Healthcare Group LPInventors: David Rork Swisher, Kenneth M. Breitweiser, Joel D. Wiesner
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Publication number: 20110160611Abstract: A biopsy device may include a housing and a disposable biopsy assembly releasably received in the housing. The disposable biopsy assembly may include a cutter coaxially disposed with respect to a needle, and a plurality of gears may be engaged when the disposable biopsy sample is inserted in the housing. A tissue sample holder may be disposed within housing.Type: ApplicationFiled: March 11, 2011Publication date: June 30, 2011Applicant: DEVICOR MEDICAL PRODUCTS, INC.Inventors: Mark A. Ritchart, J. Michael Stuart, Fred H. Burbank, Kenneth M. Galt
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Publication number: 20110152716Abstract: A biopsy probe mechanism includes an elongate sample receiving member having a longitudinal axis and having a sample receiving notch. An elongate sample receiving member and a cutting cannula are movable relative to one another along a longitudinal axis between a first relative position and a second relative position. A first echogenic feature is established on the elongate sample receiving member and a second echogenic feature is established on the cutting cannula. The first echogenic feature is in longitudinal alignment with the second echogenic feature when the elongate sample receiving member and the cutting cannula are in the first relative position. The first echogenic feature is out of longitudinal alignment with the second echogenic feature when the elongate sample receiving member and the cutting cannula are in the second relative position.Type: ApplicationFiled: December 23, 2009Publication date: June 23, 2011Inventors: Rafal Chudzik, Jason G. Seiger, Jennifer Smith, Charles Simpson
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Publication number: 20110144533Abstract: An introducer cannula configured for receiving a medical instrument includes a cannula tube having a side wall surrounding a central lumen, a proximal end, and a distal end. An elongate tissue anchor is positioned in the central lumen of the cannula tube. The elongate tissue anchor has a mounting end and an anchoring free end. The elongate tissue anchor is movable in the central lumen such that the anchoring free end is movable between a retracted position and a deployed position. An actuator is coupled to the proximal end of the cannula tube. The actuator is coupled to the mounting end of the elongate tissue anchor. The actuator is operatively configured to selectively position the anchoring free end of the elongate tissue anchor in one of the retracted position and the deployed position.Type: ApplicationFiled: December 15, 2009Publication date: June 16, 2011Inventors: Rafal Chudzik, Angela K. Jensen, Jason G. Seiger
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Patent number: 7959580Abstract: A biopsy apparatus includes a cannula having a closed distal end. An orifice is located on a circumferential surface of the cannula. The orifice is configured to receive a tissue sample into a lumen of the cannula. A cutting sheath is slidably and coaxially disposed over the cannula. The cutting sheath is adapted to seal the opening of the orifice. A pressure generating device is connected to a proximal portion of the cannula for altering a pressure in the lumen of the cannula. A valve is positioned between the cannula and the pressure generating device for controlling a flow of a fluid between the lumen of the cannula and the pressure generating device.Type: GrantFiled: February 3, 2009Date of Patent: June 14, 2011Assignee: C.R. Bard, Inc.Inventors: Adam B. McCullough, Robert W. Kalis
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Publication number: 20110137202Abstract: A biopsy needle device for collecting a tissue sample by penetrating a living body includes a needle. The needle includes a tip portion having a cross-sectional area getting gradually smaller toward a front end thereof and a tissue container portion arranged behind the tip portion for holding the tissue sample therein. The tip portion includes a rear surface contiguous to the tissue container portion and a recess formed on the rear surface.Type: ApplicationFiled: March 16, 2010Publication date: June 9, 2011Applicants: M.I. TECH CO., LTD., Yonsei University Industry-Academic Cooperation Foundation of Yonsei Univ., INHA Industry Partnership InstituteInventors: Chul Soo GIM, Sang Ho KIM, Jong Chae PARK, Hwa Sub SONG, Si Young SONG, Seung Woo PARK, Tae Il KIM, Sung Kwan SHIN, Seung Min BANG, Don Haeng LEE
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Publication number: 20110130680Abstract: The present invention relates to a device (1) to allow providing testing of tissue of prostate gland (3) using two or more biopsy needles (4, 5, 6, etc.) essentially simultaneously. According to the invention a guiding (7) for said needles (4-6) is arranged to act on said needles, which preferably have a built-in curvature,-.so that the needles (4-6) are curved by said guiding to get the needles, when using the device, to extend along a peripheral part of the prostate gland (3) in question to allow testing in said peripheral part (2) of the same.Type: ApplicationFiled: July 30, 2009Publication date: June 2, 2011Applicant: AB CHRISTER DAHLSTRANDInventor: Christer Dahlstrand
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Publication number: 20110125056Abstract: A disposable safety needle assembly and safety enclosure means for internally shielding a used or contaminated needle is disclosed. The needle assembly has a needle cannula which is disposed and slidably within a safety enclosure. The safety enclosure includes an internally disposed flexible safety member situated substantially longitudinally within said flexible safety member, having a face portion transversely having a safety feature and being disposed to the needle and cooperatively sliding thereon. Retraction of the needle within the safety enclosure to a point wherein the sharp tip of the needle is beyond the needle protection section of the flexible member causes the protection section to travel transversely to the direction of motion of the needle and the safety feature receiving the sharp tip of the needle and preventing it from exiting the enclosure, thereby maintaining the needle safely after use.Type: ApplicationFiled: January 29, 2010Publication date: May 26, 2011Inventor: Michael Merchant
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Patent number: 7946998Abstract: A needle biopsy system for marking a sampling site is described.Type: GrantFiled: August 25, 2008Date of Patent: May 24, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Barry N. Gellman, Richard Tah, Jozeph Slanda
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Publication number: 20110118625Abstract: A biopsy apparatus includes a biopsy region positional information calculator for calculating a three-dimensional position of a biopsy region, a biopsy needle moving mechanism for moving a biopsy needle along three axes and/or turning the biopsy needle obliquely to an object to be examined, a biopsy needle positional information calculator for calculating a three-dimensional position of the biopsy needle, and a traveled distance calculator for calculating a distance over which the biopsy needle moves with respect to the biopsy region based on the three-dimensional position of the biopsy needle and the three-dimensional position of the biopsy region.Type: ApplicationFiled: November 16, 2010Publication date: May 19, 2011Applicant: FUJIFILM CorporationInventors: Hayato Akuzawa, Hajime Nakata, Yousuke Tsukamizu
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Publication number: 20110112437Abstract: A needle assembly comprises an outer cannula and an inner cannula. The outer cannula and the inner cannula have complementary tissue receiving apertures. A tissue piercing tip is secured relative to one or both of the inner cannula or the outer cannula. A cutter is slidably disposed in the inner cannula. The cutter is configured to sever tissue protruding through the transverse apertures. A hub releasably secures at least part of the needle assembly relative to the body of a biopsy device.Type: ApplicationFiled: January 18, 2011Publication date: May 12, 2011Applicant: DEVICOR MEDICAL PRODUCTS, INC.Inventors: Andrew T. Beckman, Noreen Kascak, Lee Reichel, Michael Ludzack
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Publication number: 20110112436Abstract: A distraction pin for aspiration of a bone fluid and marrow. The pin includes an elongate metallic shaft of generally uniform diameter having a proximate end. The proximate end of the shaft includes an adaptor (attachment means) and a longitudinal bore extending from the distal end to the proximate end. The distal end of the shaft includes threading adapted for screwing the shaft into bone. The distal end also includes at least two fenestrations transverse to the longitudinal bore.Type: ApplicationFiled: November 8, 2010Publication date: May 12, 2011Inventors: Robert J. Jones, Richard Kana, John B. Rossman