A cannula sterile adaptor for a surgical system includes a first portion comprising a rigid material and a second portion comprising a compliant material. one of the first portion and the second portion comprises a depression arranged to receive a clamping arm of a cannula mount of the surgical system.

An actuating scalpel device that is adapted to deploy a curved scalpel blade in an elliptical or circular pathway is described in detail. The actuating scalpel generally comprises a scalpel blade that possesses a curved cutting edge, a probe tip housing that fully contains said scalpel blade when in a retracted position, a slot in said housing through which said curved cutting edge is adapted to extend and a driving member connected to said scalpel blade. The linkages are configured to move said scalpel blade in an elliptical path when said scalpel blade is deployed to extend outside of said probe tip housing.

The present disclosure provides medical devices for creating a channel in a biological soft tissue. The devices comprise an integral rotatable tool formed by an elongated distal member and a proximal shaft, the elongated member having a distal end portion and a proximal end portion, the distal end portion comprising a tissue piercing tip of a pyramid-like shape, and the proximal end portion comprising an elongated prism-like portion having at least three surfaces and respective prism edges, with at least one of the prism edges between the surfaces being configured as a tissue cutting blade, and the proximal shaft interfacing and extending from the prism-like portion and having a cross section larger than a cross section of the prism-like portion at the interface. In some embodiments, the device comprises an intermediate portion extending between the distal end portion and the proximal end portion and having a frustum shape, thereby forming a smooth transition between a base portion of the tissue piercing tip and the proximal end portion.

A syringe is coupled to a biopsy needle through a coupling structure that includes a motor-driven element such as a gear to rotate the needle. The motor can oscillate back and forth to cause the needle to oscillate. Structures are described to permit one-handed operation of the device and automatic motor activation based on attaining a desired plunger position.

A penetrator assembly for penetrating a bone and associated bone marrow is provided. The penetrator assembly may include a first connector having a first end and a second end; an outer penetrator extending from the second end of the first connector; the outer penetrator comprising a longitudinal passageway and a first tip; a second connector having a first end and a second end; and an inner penetrator extending from the second end of the second connector, the inner penetrator comprising a second tip. The first connector may be configured to engage the second connector, and the inner penetrator may be disposed in the longitudinal passageway of the outer penetrator when the first connector is engaged with the second connector.

An apparatus for accessing bone marrow inside a bone is provided. The apparatus may include a penetrator assembly having a tissue penetrator and a hub. The tissue penetrator my have a hollow cannula disposed in fixed relation to the hub. The apparatus may also have a driver configured to insert a portion of the tissue penetrator into the bone and bone marrow, and a depth control mechanism configured to control the depth of penetration of the tissue penetrator into the bone and bone marrow. The depth control mechanism may have a sensor configured to detect a position of the bone and bone marrow. The depth control mechanism may also have a mechanical stop.

Automatic dilator devices for generating minimally invasive access apertures for surgical procedures or endoscopic surveillance. The automatic dilators comprise a number of spreader tubes nested one inside the other. The devices deploy automatically by means of coupled mechanical mechanisms which insert one spreader after the other distally into the patient's tissue. Each spreader moves distally into the tissue by means of a screwing action, by which rotation is converted into linear motion of the neighboring spreader, immediately external to it, by means of interaction between a helical thread form on a surface of a spreader being engaged by a section of thread, or by one or more protrusions on the opposing face of the next spreader external to the rotating spreader. Such a combination of helical thread and follower enables a rotatory mechanism to be used to deploy one nested spreader tube after the other, by continuous rotary motion.

An apparatus and method for penetrating bone marrow is provided. The apparatus may include a housing such as a handheld body, a penetrator assembly, a s connector that releasably attaches the penetrator assembly to a drill shaft, a gear mechanism, a motor and a power supply and associated circuitry operable to power the motor. The penetrator assembly may include a removable inner trocar and an outer penetrator or needle. It may also include a grooved trocar that allows bone chips to be expelled as the apparatus is inserted into bone marrow. Various connectors are provided to attach the penetrator assembly to the drill shaft.

An apparatus and method for harvesting bone and bone marrow are provided. The apparatus may include a driver operable to be releasably engaged with an intraosseous device. The intraosseous device may include a cannula having a first end operable to penetrate bone and bone marrow and to allow retrieval of portions of bone and/or bone marrow. The cannula may have a second end operable to be releasably engaged with bone marrow sampling equipment. The apparatus may include a removable trocar. The removable trocar may have an inner channel operable to convey portions of bone and/or bone marrow. The removable trocar may have an inner channel and a side port communicating with the inner channel. The removable trocar may have a first end operable to penetrate bone and bone marrow.

A device comprises a retractable shaft; a shaft biasing spring; and an actuator button. The retractable shaft is biased away from the actuator button by the shaft biasing spring. A magnetic attracting force is created between the retractable shaft and the actuator button upon actuation of the actuator button. Before actuation, a distance between the actuator button and the retractable shaft is great enough that the magnetic attracting force is less than a biasing force of the shaft biasing spring such that the retractable shaft is biased away from the actuator button. Upon actuation, the actuator button is depressed to make the distance between the actuator button and the retractable shaft sufficiently small such that the magnetic attracting force is greater than the biasing force of the shaft biasing spring to allow the retractable shaft to be biased towards the actuator button.