A cardioprotective patch with an integrated cutting guide includes a membrane having a top edge, a bottom edge distal from the top edge, a right side edge connecting the top edge and the bottom edge; and a left side edge, distal from the right side edge and connecting the top edge and the bottom edge. A fold extends parallel to the top edge about half way between the top edge and the bottom edge. The crease is slit from the right side edge, forming a right slit. An elongate frame is fixedly connected to the membrane. The frame includes a tubular member and a plurality of arms extending outwardly from the tubular member and connected to the membrane.

In general, devices, systems, and methods for assembly and operation of a handheld oscillating surgical saw are provided. In exemplary embodiments, a surgical tool includes a handpiece comprising a coupling head that includes a slot and a magnet, the slot being configured to releasably receive a surgical saw blade configured to cut bone, and the magnet being configured to magnetically attract the saw blade, wherein the coupling head is configured to move between a first position, in which the slot has a first height and the coupling head is configured to selectively receive the surgical saw blade therein and release the surgical saw blade therefrom, and a second position, in which the slot has a second height that is less than the first height and the coupling head is configured to fixedly seat the saw blade therein.

Devices are described relating to the retaining of surgical tools within the chuck of a reciprocating surgical instrument, such as a reciprocating saw. A securing chuck is disclosed for securing a surgical tool to a reciprocating surgical instrument that comprises a shaft and a securing member. The shaft defines an axis and has a cylindrical bore extending along the axis. The bore is shaped to receive a substantially rounded tool shank. A pair of transverse slots extends into the shaft along a plane passing through the axis for receiving a substantially flattened tool shank. The transverse slots intersect with the cylindrical bore. The securing member is carried by the shaft and is radially movable relative to the bore both inwardly and outwardly to secure the surgical tool in the chuck.

A tool bit for an ultrasonic osteotome includes a bit body, an arbor fixed to the bit body, and a flat end portion fixed to the arbor. A toothed edge extends linearly along a length direction of an end portion of the tool bit, and recesses are distributed evenly on the toothed edge to form teeth spaced apart from each other. The toothed edge extends linearly along a length direction, and the cutting edges of teeth are distributed linearly, e.g., instead of having a sharp structure, thus will not scrape and hurt other tissues during cutting. Since the thickness of the cutting edge is the same as that of the back edge, when cutting bone tissues, the incision is wide, thus the end portion is not easy to be clamped by bone tissue, which effectively prevents the end portion from breaking and reduces occurrence chances of surgery accidents.

Disclosed are a tool bit of an ultrasonic osteotome and an ultrasonic osteotome including the same, the tool bit comprising: an arbour (2); and an end portion (1) of the tool bit connected to a front end of arbour (2), wherein the end portion (1) of the tool bit has a hook-like shape and includes a hook tip (11), a hook handle (13), as well as a hook-shaped interconnecting piece (12) which is interconnected between the hook tip (11) and the hook handle (13). The hook handle (13) is connected with the arbour (2), and the inner side edge of the hook-shaped interconnecting piece (12) is tooth-like. With this ultrasonic osteotome, the cutting efficiency is high and surgery time is short, therefore the labour intensity of medical workers is decreased. Moreover, accurate positioning can be realized in cutting process with no skidding, so the chance of success of surgery can be improved.

An ultrasonic surgical device capable of cutting biological tissues such as bone and cartilage. The ultrasonic surgical device includes a static casing, which sheaths an ultrasonic horn, and a lubrication film, which separates the ultrasonic horn and the static casing. The static casing, which may also incorporate a plurality of fluid channels to allow passage of fluids along its length and eventual distribution of such fluids at the cutting end and biological tissue interface, inhibits the transfer of heat generated along the ultrasonic horn. The cutting end and the static casing are separated by a flexible joint, which serves to inhibit the transfer of vibrational energy, and consequently heat, from the cutting end to the static casing. As such, the static casing remains stable and can be used both to manipulate the surgical device with greater haptic control and facilitate effective penetration of larger cross-sections of biological tissue.

A tool for insertion into a surgical saw includes a holder area for the saw and a head which is movable in oscillation by the surgical saw along a work direction where the head has a plurality of teeth which are arranged behind one another in the work direction. A first and second tooth each contains a first shaving surface for shaving off bone material oriented transversely to the work direction and a second pressing surface for pressing on bone material which pressing surface adjoins the shaving surface. The shaving surface, in relation to the work direction, is more inclined than the pressing surface. The two teeth are oriented with their shaving surface and pressing surface opposite each other so during oscillation the shaving surface of the tooth lying ahead in work direction and the pressing surface of the tooth lying therebehind in work direction are in operation.

A method and instrumentation for performing a patellofemoral arthroplasty orthopaedic procedure includes coupling an anterior cutting block to a femur of a patient such that the cutting block references local anatomy of the femur. The anterior cutting block is used to perform a number of bone cuts to establish a trochlear cavity in the femur. The trochlear cavity is formed such that a trochlear prosthesis may be inset into the cavity and substantially flush with the surrounding cartilage. A finishing burring guide and burr bit may be used to detail the shape and/or size of the trochlear cavity. Additionally, a trochlear drill guide may be used to facilitate establishing peg holes in the patient's femur to receive corresponding pegs of the trochlear prosthesis.

An intervertebral implant component of an intervertebral implant includes an outer surface for engaging an adjacent vertebra and an inner surface. A keel extends from the outer surface and is designed to be disposed in a slot provided in the adjacent vertebra. This keel extends in a plane which is non-perpendicular to the outer surface; and preferably there are two of the keels extending from the outer surface which are preferably offset laterally from one another. In another embodiment, an anterior shelf is provided at an anterior end of the outer surface, and this anterior shelf extends vertically away from the inner surface in order to help prevent bone growth from the adjacent vertebra towards the inner surface. Further in accordance with disclosed embodiments, various materials, shapes and forms of construction of the component and/or keel provide various benefits.

A reciprocating blade assembly for use with a surgical saw comprises a reciprocating member, the reciprocating member including a proximal end feature for engaging a drive member of the of the saw that, when actuated, reciprocates the reciprocating member. The reciprocating blade assembly further comprises teeth that extend outwardly from a side of the reciprocating member, the teeth adapted to form a kerf in tissue against which the teeth are pressed. The reciprocating member is contained in a guide bar assembly that includes features for engaging with a complementary fastening assembly that holds the guide bar assembly static to the saw and an opening located in a side of the guide bar assembly wherein the reciprocating member is mounted in the guide bar assembly so the teeth extend out of the side opening, wherein said guide bar assembly is dimensioned to fit into the kerf formed in the tissue cut by the teeth.