The invention relates to a method for automatically registering an object, the method comprising the steps of providing a preoperatively obtained model of the object, providing at least one marker carrier having a plurality of fluoroscopically detectable makers and at least one marker localization element fixed on it, wherein the at least one marker localization element being configured to provide a sensor signal representing position and orientation of the marker localization element in an electromagnetic field, and relative distance and orientation between at least one marker localization element and at least one marker of the plurality of markers are known, arranging the at least one marker carrier on an outer surface of the object, generating at least one fluoroscopic image of at least one marker carrier arranged on the outer surface together with at least one segment of the object in such a way that at least two markers of at least one marker carrier are visible in the generated fluoroscopic image together with at least one segment of the object, determining position and orientation at least of one marker localization element of the arranged marker carrier in an electromagnetic field, and relating image points of the generated fluoroscopic image to model points of said preoperatively obtained model using the determined position and orientation of at least one marker localization element and the known relative distance and orientation between at least one maker localization element and at least one marker of the plurality of markers and/or a known spatial relation between a further marker of the plurality of markers and the at least one marker that has a known relative distance and orientation to at least one maker localization element.

An instrument for collecting tissue from a body cavity includes a hollow tubular body. The tubular body has a tubular wall that extends between a proximal-most end and a distal-most end of the tubular body. The tubular wall surrounds a passage that extends to the distal end portion of the tubular body. The tubular body can be a non-bending shaft, or a shaft having an articulating section that allows a portion of the tubular body to articulate relative to the proximal end portion. The distal end portion includes a core drill with a cutting tip. The cutting tip defines a first aperture, a second aperture opposite the first aperture, and a web extending between the first aperture and the second aperture. The web tapers to a drill point at the distal-most end of the tubular body.

A biopsy device includes a device housing, a linear motor, and a controller circuit. The controller circuit has a processor circuit, a first feedback circuit, and a second feedback circuit. The first feedback circuit and the second feedback circuit operate simultaneously. The processor circuit executes program instructions to control an axial advancement of the distal end of the linear motor shaft in accordance with a linear motor shaft advancement profile based on first control signals received from at least one drive characteristic sensor of the first feedback circuit, and executes program instructions to keep the distal end of the linear motor shaft at a constant axial position, as offset by the position indicated by the linear motor shaft advancement profile, based on second control signals received from the housing position detector of the second feedback circuit so as to compensate for user movement of the device housing.

A coiled shaft for tissue disruption is described herein where a flexible aspiration cannula has a first portion and a second portion formed of the coiled shaft. The cannula is configured in a particular embodiment to rotate over the length of the cannula to disrupt the matrix of bone marrow without the cannula buckling or collapsing. The cannula also includes a disruption tip coupled to the coiled shaft. The disruption tip has a radiused portion along a distal tip face of the disruption tip.

In particular for automatically determining the position of a Jamshidi needle, the invention provides a surgical needle set comprising a hollow needle and an obturator, wherein the obturator has, starting a finite distance from its distal tip, a hollow space extending longitudinally in a proximal direction, wherein at least one proximal lateral outlet of the hollow space is provided within a handle part of the obturator, and wherein the hollow space is in connection with a passage of an adapter part of an adapter, which passage extends at a finite angle to the longitudinal extent of the hollow space.

An intraosseous access system, including an access assembly having a needle configured to drill into bone via rotation of the needle and a driver. The driver can include a housing, a power converter configured to impart rotational power to the needle, a first power source coupled to the power converter, and a second power source selectively coupleable to the power converter, where the second power source is configured to be disposed at least partially external to the housing. A method of drilling through a bone includes providing the intraosseous access system, applying rotational power to the needle, and placing the needle in contact with the bone. The method can further include coupling the second power source to the power converter so that power from the second power source is combined with power from the first energy source.

A surgical collection assembly for filtering material from liquid obtained during surgery has a distal plunger plate that is used to compress collected material that is filtered from liquid and entrained materials gathered during surgery. The distal plunger plate needs to be maintained above the collection jar inlet during collection of the liquid and entrained material. This disclosure teaches several ways to reversibly retain the distal plunger plate above the collection jar inlet. Also taught is a drape clamp that can affix the assembly and related tubing to a drape.

A bone marrow aspiration device includes an outer cannula connected to an outer handle, and a first cannula that fits through the outer cannula and extends beyond a distal end of the outer cannula. The first cannula is connected to a first handle including a mating feature. A removable sharp stylet fits coaxially through the first cannula and is connected to a stylet handle including a mating feature to engage with the mating feature of the first handle, to couple the stylet handle to the first handle. A proximal end of stylet forms an adapter to couple to a drill, the first cannula and stylet rotating together when driven by the drill coupled to the adapter. A second cannula fits through the first cannula once the stylet is removed, a distal end of the second cannula closing off the distal end of the first cannula but leaving open one or more side apertures in the first cannula, to aspirate bone marrow through the open side apertures. A screw mechanism, formed by a lead screw extending from the first handle and engaging a threaded portion of the outer handle, allows the first cannula to be retracted through the outer cannula with rotation of the first handle relative to the outer handle.

An intraosseous access device for accessing an intraosseous space of a patient includes a manual driver and a sternal locator. The handle is connected to an inner penetrator hub, and an inner penetrator extends from the inner penetrator hub. An outer penetrator hub is releasably engaged to the inner penetrator hub. A protective cover is slidably coupled to the handle. The protective cover is operable to move from an extended position where the inner penetrator is covered, to a retracted position where the inner penetrator is exposed. The sternal locator includes a base; a collar extending from a first surface of the base for securing the intraosseous access device to restrict longitudinal separation of the intraosseous access device from the locator. The locator may be removed from the patient while the outer penetrator remains inserted in an intraosseous space of the patient.

An apparatus for penetrating bone and accessing bone marrow is provided. The apparatus may include a penetrator assembly and a powered drill. The penetrator assembly may include an inner penetrator having a stylet. The penetrator assembly may also include an outer penetrator having a hollow cannula and a luer lock attachment. The powered drill may include a housing enclosing a motor and a power supply and associated circuitry. The powered drill may also include a connector receptacle for receiving a penetrator assembly connector of the penetrator assembly. The powered drill may include a magnetic connection which releasably locks the penetrator assembly connector into place with the powered drill. The power supply may include a rechargeable battery within the housing for supplying power to the motor. A battery indicator may be provided to indicate a level of the battery.