Devices and methods are provide for facilitating registration and calibration of surface imaging systems. Tracking marker support structures are described that include one or more fiducial reference markers, where the tracking marker support structures are configured to be removably and securely attached to a skeletal region of a patient. Methods are provided in which a tracking marker support structure is attached to a skeletal region in a pre-selected orientation, thereby establishing an intraoperative reference direction associated with the intraoperative position of the patient, which is employed for guiding the initial registration between intraoperatively acquired surface data and volumetric image data. In other example embodiments, the tracking marker support structure may be employed for assessing the validity of a calibration transformation between a tracking system and a surface imaging system. Example methods are also provided to detect whether or not a tracking marker support structure has moved from its initial position during a procedure.

Apparatuses, systems, and methods are disclosed for a surgical clamp for Lapidus bunion surgery. A surgical clamp has handles disposed at opposing branches of a surgical clamp. A hinge is disposed at an intersection of the opposing branches about which the opposing branches pivot. A first gripper is disposed at a distal portion of the first opposing branch and is shaped to hook around and grip a neck of a first metatarsal. A second gripper is disposed at a distal portion of the second opposing branch and is shaped to hook around and grip a neck of a different metatarsal. The grippers extend at a non-zero angle away from the opposing branches. A lock extends between the opposing branches and selectively fixes a relative position of the opposing branches so that the grippers selectively hold a position of the first metatarsal relative to the different metatarsal.

A stone retrieval device includes a sheath and a stone retrieval basket that includes a distal region with a plurality of basket wires and a proximal region with one or more core wires. The stone retrieval basket is contained within the sheath and is movable out a distal opening of the sheath to cause the plurality of basket wires to open into a basket shape. The stone retrieval device further includes a lock mechanism that locks the position of the stone retrieval basket with respect to the position of the sheath and a basket force controller that includes a first control stage and a second control stage. The first control stage includes a sensor for measuring force on the stone retrieval basket when the lock mechanism is in an unlocked position, and the second control stage includes a sensor for measuring force on the stone retrieval basket when the lock mechanism is in a locked position. The stone retrieval device further includes an automatic release mechanism that releases the stone retrieval basket when the force on the stone retrieval basket exceeds a predetermined maximum force.

Forceps can include a drive pin, an outer tube, a first jaw, a second jaw, and an inner shaft. The outer tube can extend along a longitudinal axis. The first jaw can be pivotably connected to the outer tube. The first jaw can include a first flange that can be located at a proximal portion of the first jaw. The first flange can include a first chamfered edge configured to limit extension of the first flange laterally beyond an outer surface of the outer tube when the first jaw is in a closed position. The inner shaft can be located within the outer tube and can extend along the longitudinal axis.

A surgical instrument (100) includes first and second shaft members (110, 120) defining proximal and distal end portions (112a, 122a, 112b, 122b) and including handles (114, 124) at the proximal end portions (112a, 122a) thereof. A pivot member (130) couples the distal end portions (112b, 122b) with a gap (G) defined therebetween proximally of the pivot member (130). First and second jaw members (210, 220) extend distally from the shaft members (110,120), distally of the pivot member (130). A lockout bar (160, 560, 660, 760) is movable between an unlocked position, withdrawn from the gap (G), and a locked position, disposed within the gap (G). The handles (114, 124) are pivotable between spaced-apart and approximated positions to pivot the jaw members (210, 220) between open and closed positions. The handles (114, 124) are yawable between the approximated position and a yawed position to yaw the jaw members (210, 220) between the closed position and a cutting position. The gap (G) provides clearance to permit yawing such that, when the lockout bar (160, 560, 660, 760) is disposed in the locked position, yawing of the handles (114, 124) is inhibited.

This invention is an advanced tissue gripping forceps with novel design of forcep's jaw best suitable for medical surgery. The novel tissue holding forceps has first and second arms with two ends each i.e Head and rear end; and jaws at the heads of each arms of the forceps. The rear ends of two arms of the forceps are coupled together. The second ends, the head of the First and Second arms of the forceps form opposing First and second jaws which are resiliently biased apart. The First and second jaws each include a plurality of sharp, directly opposing sharp elongated teeth to grip the tissue firmly during the use. The both jaws has a deep “CUT” in the center which makes jaw as “U” shape. This novel design enable fast and easy surgical operations by reducing the time of operation by facilitating the stitching and other surgical operations.

A locking tonsil forceps having first and second intersecting and pivoting arm members, and grasping members disposed on the arm members. The grasping members have blunt tine members, a concave interior surface, inwardly facing blunt interior projection members, flush lateral projection members and angled lateral projection members. The tine members and projecting members are non-contacting with each other even in the maximum closed forceps position.

An instrument (10) having a tool (15) of a particularly simple design comprises jaws (16, 17) with jaw supports (46) supported by spaced-apart hinges on a shared socket part 18. The hinge axes (27, 28) of the hinges are oriented parallel relative to each other and are at a distance from each other. A slit (24) for precisely guiding a knife (25) may be provided between the two. The jaw supports (46) of the jaws (16, 17) are guided in their own hinges with minimal play and hence in a precise manner. They are held against each other by transverse interlocking means (37), thereby ensuring a simple assembly and precise guiding.

A surgical instrument comprising a shiftable transmission is disclosed. The transmission comprises a mechanism for assuring that the transmission is in one of a plurality of predefined configurations.

A forceps having at least a first jaw with a longitudinal axis is disclosed. The first jaw can include a body portion, a first flange, a second flange and a cam pin. The first flange can define a first cam slot with a longitudinal extent along the longitudinal axis. The second flange can be spaced from the first flange a distance transverse to the longitudinal axis of the first jaw and can have a second cam slot. The cam pin, with a longitudinal axis, can be moveably secured within the first cam slot and the second cam slot. A diameter of the cam pin can be less than a width between a first longitudinal edge that defines a first side of each of the first cam slot and the second cam slot and a second longitudinal edge that defines a second opposing side of each of the first cam slot and the second cam slot so that the cam pin is moveably received by both the first cam slot and the second cam slot. With the first jaw pivoted to at least a first position, the cam pin and first flange can be configured such that the first longitudinal edge is contacted by the cam pin but the second longitudinal edge is spaced from the cam pin. The cam pin and second flange can be configured such that the first longitudinal edge is spaced from the cam pin but the second longitudinal edge is contacted by the cam pin.