63 results about "Morcellator" patented technology

According to an aspect of the present invention, a medical device is provided, which comprises the following: (a) a hollow elongate body (e.g., a elongate cylinder, such as a needle) having distal and proximal ends; and (b) a rotatable member comprising a tissue morselizer and an elongate shaft (e.g., an auger-like tissue-drilling bit). The device (i) advances material (e.g., morselated tissue) toward the proximal end of the hollow elongate body when the shaft is rotated in a first direction, and (ii) advances material (e.g., a therapeutic agent and / or a bulking agent) toward the distal end of the hollow elongate body when the shaft is rotated in a second direction that is opposite the first direction. The invention also provides a method of treatment for morselizing and removing tissue from within the patient and creating a void within the patient and introducing a therapeutic agent and / or a bulking agent into the void.

Surgical instruments are disclosed that utilize high-pressure liquid jets to perform a variety of useful functions. In certain embodiments, surgical instruments are described incorporating one or more liquid jets utilized to contact tissue excised by a non-liquid jet tissue-cutting component of the surgical instrument. In certain embodiments, a liquid jet of a surgical instrument can be utilized for the purpose of excising tissue of a patient immobilized and / or manipulated by the surgical instrument. Also described are surgical devices of the type characterized by curettes, rongeurs, bone punches, bone cutting forceps, morcellators, surgical micrograspers, with functionality and performance supplemented by the integration of a liquid jet. Also disclosed are methods of using certain liquid jet-containing surgical instruments for performing surgical procedures, for example surgical procedures on the spinal column of a patient.

An endoscopic morcellator device and method for use is provided. The morcellator device includes an elongate shaft having a proximal end and a distal end and a lumen extending therethrough, a handle coupled to the proximal end of the shaft, at least one active electrode disposed about a periphery of the distal end of the shaft, at least one return electrode disposed at the distal end of the shaft and electrically insulated from the at least one active electrode, and at least one fluid conduit extending along the shaft and having an outlet at the distal end of the shaft.

A cutting blade for a surgical morcellator has a distal end and a sharpened cutting edge situated at the distal end for transecting tissue to form tissue morsels, the cutting blade being structured to minimize contact between the sharpened edge and a tissue grasping instrument used with the morcellator during a surgical procedure. The cutting blade includes a generally cylindrically-shaped sidewall defining an axial bore for the passage of transected tissue morsels therethrough, the sidewall having an outer surface residing generally in a first cylindrical plane, an inner surface residing generally in a second cylindrical plane, and a sloped surface, the inner surface of the sidewall being disposed radially inwardly of the outer surface of the sidewall, the sloped surface extending transversely between the inner surface and the outer surface in the direction of the distal end of the cutting blade and joining the outer surface at an acute angle to define with the outer surface the sharpened cutting edge, the sharpened cutting edge residing in the first cylindrical plane in which the outer surface of the sidewall generally resides, wherein the sloped surface of the cutting blade sidewall extends radially inwardly beyond the second cylindrical plane in which the inner surface of the cutting blade sidewall generally resides to define a circular protrusion situated radially inwardly of the inner surface for selective engagement with the tissue grasping instrument used with the morcellator during a surgical procedure.

The invention relates to a tissue morcellator for minimally invasive surgery. The morcellator has a metallic cutting ring mounted on a visually transparent hollow cylinder, which in combination with a visually transparent outer morcellator tube enables a surgeon to visualize the inside of the morcellator shaft for detection of loose tissue fragments in the device. A tenaculum used with the morcellation device has a spacer for preventing contact with the blade. The cutting tube can oscillate, rather than rotate, along the longitudinal axis of the cutting tube. The morcellator utilizes an extendable tissue guide on the outer tube of the morcellator shaft for preventing the tissue from rotating along the longitudinal axis of the morcellator tube. This allows the tissue to be continuously rotated into the morcellator device for continuous peel. The tissue guide can also be fully retracted to allow for coring of the bulk tissue.

A surgical morcellator includes a trocar body portion and a handle portion detachably mounted to the trocar body portion. The trocar body portion is relatively lightweight and may be used separately from the handle portion with other laparoscopic instruments while morcellation is not required during the surgical procedure.

Methods are disclosed, for performing therapeutic or diagnostic procedures at a remote site. According to one embodiment, the methods include the use of a system including an introducer designed for transcervical insertion into the uterus. The introducer is constructed to include a fluid lumen, an instrument lumen, and a visualization lumen. The system may include a fluid source, which is coupled to the fluid lumen and is used to deliver a fluid to the uterus either for washing the uterus or for fluid distension of the uterus. The system additionally includes a tissue modifying device, such as a morcellator, and a distension device for distending the uterus and / or for maintaining the uterus in a distended state. The tissue modifying device and the distension device are alternately deliverable to the uterus through the instrument lumen. The system may further include a hysteroscope deliverable to the uterus through the visualization lumen.

Provided is an improved morcellator for severing and removing tissue from a patient's body with functional and structural improvements in disposable cutter assembly and reusable drive assembly to prevent body fluid from entering the sterile region of the cutter assembly and infection from transmitting to reusable drive assembly.

A power morcellation system, apparatus, and methodology. Structurally, the device includes a sturdy, pliable (e.g., able to be inserted and retracted through a 10-15 mm morcellator port), distensible, waterproof / watertight retaining bag / pouch / carrier to be deployed into the pelvic cavity of the subject. The device further includes a plurality (e.g., three (3)) of port tube channels extending outwardly from the bag, wherein the interior of each channel is in communication with the interior of the bag. Each channel has an open end (opposite from the end that terminates in the bag) through which a laparoscopic / robotic camera and other instruments (e.g., camera, control instrument) may pass. A smaller tube channel also extends outwardly from the bag and can be suited as an insufflation port channel, among other uses. The bag also includes a large opening surrounded by an elastic drawstring for receiving the specimen to be removed within the bag.

A morcellation system includes a morcellator and a grasper. The morcellator includes a housing and a tube extending from the housing and having at least one blade section. The morcellator further includes an oscillating mechanism configured to oscillate the tube. An end cap is coupled to the proximal end of the housing and is configured to receive the tube. The end cap defines a passage and includes an aligning structure disposed in the passage. The grasper includes a tubular member having a grasping end including first and second jaws moveable relative to one another. The grasper further includes a handle assembly operatively associated with the grasping end. A keyed collar is disposed about the tubular member. The keyed collar includes a key configured to cooperate with the aligning structure of the end cap to align the first and second jaws relative to the distal end of the tube.