The present disclosure relates generally to the field of medical devices and methods to assist in the introduction of an instrument into a patient, and more particularly to medical devices for measuring and/or monitoring forces applied during introduction of an access sheath through a body lumen.

Systems and methods for attaching a reference marker to a patient in a computer-assisted image-guided surgery system. An apparatus for attaching a reference marker to a patient includes an elongated member extending between a first end and a second end, a sharp tip located proximate to the first end of the elongated member that is configured to break through a cortical surface of a bone of the patient to enable the elongated member to be advanced into the bone, an anchoring device that is extendable from the elongated member in order to anchor the apparatus within the bone and inhibit relative movement of the apparatus and the bone, and a reference marker device comprising at least one optical marker configured to enable the apparatus to be tracked using a motion tracking system.

Powered drivers operable to insert an intraosseous device into a bone and associated bone marrow are disclosed. Some of the present powered drivers may include a housing having a distal end and a proximal end; a motor disposed in the housing; a driveshaft at the distal end of the housing; and a gearbox coupled to the motor and to the driveshaft. Activation of the motor causes rotation of the driveshaft. The housing may include a power source configured to power the motor. The driveshaft may be slidably disposed in the housing and configured such that, upon application of a threshold force on the driveshaft in the direction of the proximal end of the housing, the driveshaft will slide toward the proximal end of the housing to cause an electrical circuit between the motor and the power source to close.

An intraosseous device may include a chamber portion having a proximal end and a distal end, wherein the proximal end includes a base, a tensile puller configured to extend through the chamber portion and slidingly engage the base, the tensile puller comprising a proximal end and a distal end, an actuator on the proximal end of the tensile puller, and a connector on the distal end of the tensile puller adapted to engage a needle.

A minimally invasive tissue incision system for creating joint capsulotomies and releasing/incising various tissues, tendons, and fibrous band structures is described. The system contains a penetrating needle which is retractable so as to expose a cutting element, and which may be used as a penetrating needle to pierce the skin and other soft tissue structures. The cutting element provided within the penetrating needle may be used to incise subsequent tissue structures after the initial penetration. The system facilitates such procedures by providing the cutting element with the confines of the needle which provides safe introduction of the cutting element directly to the site via the needle.

A device comprising a trocar having a first end and comprising a cannulation and at least one fenestration proximal the first end; and a housing comprising a first port configured for the attachment of a first syringe and a second port configured for the attachment of a collection vessel, a first valve configured to selectively permit fluid flow through the cannulation of the trocar to the first port, and a second valve configured to selectively permit fluid flow through the cannulation of the trocar to the second port. The device allows the first syringe to draw up bone marrow in small volumes with high vacuum and then transfer the small draws into the collection vessel. The device may increase the recovery of desired cells residing in the bone marrow to be recovered during a bone marrow aspiration procedure.

A minimally invasive spinal instrument and method for use of the same are disclosed. In some embodiments, a body includes an outer shaft and an inner shaft. A passageway accepts the inner shaft such that the outer shaft at least partially encloses the inner shaft. Each of the outer shaft and the inner shaft have spaced rings with locking grooves interleaved therewith. Each set of locking grooves is sized to accept a clamp such that the spaced rings mitigate longitudinal sliding of the clamp. A locking knob selectively secures the outer shaft and inner shaft thereto. A tip is removably secured to the inner shaft. In a single shaft configuration, in response to the locking knob being selectively disengaged from the outer shaft, the inner shaft and the locking knob are separated from the outer shaft such that the passageway is accessible to accept a metallic wire therethrough.

Devices and methods for an autovance intraosseous device. The autovance intraosseous device can include a trigger activated system or pressure activated system that causes a needle to advance distally for a predetermined distance. The predetermined distance ensures a needle tip extends through the bone cortex, to access the medullary cavity, without penetrating a far wall of the medullary cavity. The advancement can be driven by a spring based system or an electric motor.

Apparatus for delivery of bone includes a syringe body and a plunger. The syringe body includes a tip at a bottom thereof, a funnel-shaped top at the top thereof, and a tubular section having a generally cylindrical interior wall defining a passageway extending from the funnel-shaped top to the tip. The plunger includes an elongate piston, a press head, and a handle. The piston extends between the press head at a lower end of the plunger, and the handle at an upper end of the plunger. The plunger is removably received within the passageway, with an extent of the plunger extending out of the funnel-shaped top away from the syringe body. The syringe body may be loaded with one or more bone pellets or cartridges containing bone.

For determining a precise orientation and positioning of an endoscope in an electromagnetic field, an endoscope device has a proximal insertion head and has a shaft extending distally therefrom having a center axis. The shaft extends with at least one elongated lumen through the device. A sensor rod has at least two sensor coils arranged with finite spacing in relation to one another in the longitudinal direction. The at least two sensor coils are oriented in relation to one another at a finite angle.