A computer-assisted surgical system comprises a master grip input mechanism, a surgical instrument comprising an end effector configured to apply a gripping force, and a controller. The controller is configured to receive a first input signal in response to grip input at the master grip input mechanism. The controller is further configured to receive a second input signal after receiving the first input signal, wherein the second input signal is received in response to a procedure input at a master input device, with the procedure input being different from the grip input at the master grip input mechanism and further being indicative of a user's readiness to operate the surgical instrument to perform a first surgical procedure. The controller is further configured to, in response to receiving the first input signal and the second input signal, cause one or more degrees of freedom of the surgical instrument to be placed in a locked state.

Provided is a pressure guide wire, including a proximal portion (1), an intermediate portion (2) and a distal portion (12), the intermediate portion (2) is composed of one or more woven layers, wherein each woven layer includes a plurality of woven wires, the distal portion (12) includes a sensor housing (4) that holds a pressure sensor (5) and a head end assembly (11), the head end assembly (11) includes a developing spring (9) and a head end core wire (11) nested within the developing spring (9). The pressure guide wire having such a structure has good flexibility and supportability, meanwhile, the cost of the pressure guide wire can be reduced due to the low cost of the woven wire and the weaving process.

A system and method for the minimally invasive insertion of an intervertebral rod into the vertebrae of a subject, according to a preoperative surgical plan also defining positions for the insertion of rod clamping screws into the vertebrae. The rod shape for connecting the heads of the screws is calculated, and a path planning algorithm used to determine whether the distal end of the rod can be threaded through the screw heads by longitudinal and rotational manipulation of the proximal end of the rod. If so, instructions are provided for forming that rod shape and for the robotic insertion of the screw holes and the rod. If not, either or both of the screw positions and the rod shape are adjusted, to moderate the bends in the rods, until insertion becomes possible. The insertion can be performed robotically, or, if a navigation tracking system is added, manually.

Provided is a pressure guide wire, including a proximal portion (1), an intermediate portion (2) and a distal portion (12), the intermediate portion (2) is composed of one or more woven layers, wherein each woven layer includes a plurality of woven wires, the distal portion (12) includes a sensor housing (4) that holds a pressure sensor (5) and a head end assembly (11), the head end assembly (11) includes a developing spring (9) and a head end core wire (11) nested within the developing spring (9). The pressure guide wire having such a structure has good flexibility and supportability, meanwhile, the cost of the pressure guide wire can be reduced due to the low cost of the woven wire and the weaving process.

The disclosed invention comprises a device that utilizes a manually controlled articulating arm to make a precise, small abrasion on the intrauterine wall prior to ovulation. The preferred embodiment of the invention comprises a handle, an arm having a rigid portion and an articulating tip both of which are covered by a casing having non-irritant properties, wherein the handle is connected to the arm by a connection member that contains a trigger mechanism operable to move the articulating tip by pulling a trigger.

A method of implanting a prosthetic stemless shoulder implant may include making an incision into a patient's shoulder area of a patient and passing a cutting instrument through a rotator cuff interval of the patient. A central portion of the native humeral head may be resected and removed so that a central void remains. The same or another cutting instrument may be inserted through the rotator cuff interval and into the central void. Medial and lateral portions of the native humeral head adjacent the central void may be resected and removed. A base of a prosthesis may be implanted into a proximal portion of the humerus after passing the base through the rotator cuff interval, and two humeral head portions may be inserted through the rotator cuff interval and coupled to the base and to one another.

There is provided a cannula that suppresses leakage of vitreous humor, etc., from a slit through which a surgical tool is inserted. A cannula (10) used for piercing through an eyeball during an ophthalmic operation, includes: a pipe (11); a cylindrical base (12) fitted together with the circumference of a base end of the pipe (11); a resin cap (13) including a cover surface (13c) covering the surface of the base end of the pipe (11) and a side surface (13a) covering a cylindrical side surface of the base (12); and a slit (13d) passing through the center of the cover surface (13c). The outer diameter of the cylindrical side surface of the base (12) at a position where the cylindrical side surface of the base (12) touches the side surface (13a) of the cap is larger than the inner diameter of the side surface of the cap.

Various arthroscopic shavers are provided that minimize contact between bodily fluid and the shaver hand piece. Arthroscopic shavers generally include a cutting assembly mated to a hand piece. In one embodiment, the shaver includes a hub that connects the cutting assembly with the hand piece and has an exit port configured to transport cut tissue and fluid from the device. In another embodiment, the shaver includes a hub configured to retrofit existing shaver hand pieces having interior lumens for removing cut tissue and fluid. The hub further includes an exit port that diverts fluid away from the hand piece.

Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The permeable implant may include a stiffer proximal portion that is configured to sit at the neck of an aneurysm. The stiffer proximal portion may include additional mesh layers or a structural support with scaffolding wires.

The present disclosure provides a spinal fixation device, including a spinal fixation pedicle screw and an outer oval sheath. The spinal fixation device is provided with at least one locking structure and the outer oval sheath is locked to the spinal fixation pedicle screw through the at least one locking structure. The spinal fixation device can strengthen the stability of the spinal fixation pedicle screw for fixation after implantation in vertebrae during the spinal surgery.