33 results about "Anatomical cavity" patented technology

This is an implantable vaso-occlusive device. The device has a complex, three-dimensional structure in a relaxed configuration that may be used in the approximate shape of an anatomical cavity. It may be deployed in the approximate shape of a sphere, an ovoid, a clover, a box-like structure or other distorted spherical shape. The loops forming the relaxed configuration may pass through the interior of the structure. The device is a self-forming shape made from a pre-formed linear vaso-occlusion member. Fibers may be introduced onto the device and affixed to the pre-formed linear member. The constituent member may be also be covered with a fibrous braid. The device is typically introduced through a catheter. The device is passed axially through the catheter sheath and assumes its form upon exiting the catheter without further action. The invention also includes methods of winding the anatomically shaped vaso-occlusive device into appropriately shaped forms and annealing them to form various devices.

Apparatus and methods useable for simulated insertion and positioning of medical or surgical devices. The apparatus generally comprises a substantially flat structure having simulated body openings, anatomical passageways, anatomical structures and anatomical cavities formed therein. One or more windows (e.g., a transparent top panel or cover) allows the operator to observe the movement or positioning of the medical or surgical device.

An instrument for directing the insertion of a penetration member urged through tissue. The instrument includes a shaft, and a backstop positioned at a distal end of the shaft. The backstop and shaft are configured such that the backstop may be positioned adjacent one side of the tissue to be penetrated, and a penetration member may thereafter be urged through the opposite side of the tissue into the backstop. A method of penetrating the tissue wall of an anatomical cavity is also provided.

This invention relates generally to vasoocclusive devices, and more particularly concerns a vasoocclusive device that has a first elongated, reduced friction configuration in which the vasoocclusive device may be deployed through a catheter or cannula to an anatomical cavity at a site in the vasculature to be treated. The device has a second configuration assumed at the site to be treated which consists of a component that creates an anchor in the adjacent vasculature and a component for framing or filling the anatomical cavity.

This invention describes a device and method for inserting a large diameter object into a blood filled, pressurized cavity in the body without applying undue trauma to the object as it passes through the device and without loosing significant amounts of blood. The invention comprises the following elements: three rigid hollow cylindrical elements aligned along a common axis, an elastomeric tubular element located within the housings, attachment means to connect the elastomeric tubular element to the three rigid hollow cylindrical elements, independent rotational means such as torsion springs to selectively bias the elastomeric tubular element into a twisted, closed configuration at each boundary between the three rigid hollow cylindrical elements, and a cavity access element to gain access into the anatomical cavity.

The three dimensional, low friction vasoocclusive coil has a portion that is three dimensionally box or cubed shaped. The three dimensional box or cubed shaped portion will form a basket for filling the anatomical cavity at the site in the vasculature to be treated. The vasoocclusive device is formed from at least one strand of a flexible material formed to have a first inoperable, substantially linear configuration for insertion into and through a catheter or cannula to a desired portion of the vasculature to be treated, and a second operable, three dimensional configuration for occluding the desired portion of the vasculature to be treated. The vasoocclusive coil may optionally include a portion that is substantially J-shaped or helically shaped, for filling and reinforcing the three dimensional portion.

The three dimensional, low friction vasoocclusive coil has a portion that is three dimensionally box or cubed shaped. The three dimensional box or cubed shaped portion will form a basket for filling the anatomical cavity at the site in the vasculature to be treated. The vasoocclusive device is formed from at least one strand of a flexible material formed to have a first inoperable, substantially linear configuration for insertion into and through a catheter or cannula to a desired portion of the vasculature to be treated, and a second operable, three dimensional configuration for occluding the desired portion of the vasculature to be treated. The vasoocclusive coil may optionally include a portion that is substantially J-shaped or helically shaped, for filling and reinforcing the three dimensional portion.

A trocar employing an internal stabilizer and an optional external stabilizer is provided. The internal stabilizer is passed through the tissue wall along with the cannula, with the internal stabilizer in a retracted position. Once the cannula has been extended into the anatomical cavity, the stabilizer returns to its normal, extended position. Movement of the stabilizer between its retracted and extended positions is effected by advancement and retraction of the obturator. A method of inserting the trocar cannula is also provided.

A method of implanting a wireless device within a patient is provided. The wireless device is capable of wirelessly communicating within another device (e.g., an external device) using, e.g., acoustic energy, electromagnetic energy, or magnetic energy. The method comprises forming a surgical opening within the patient to expose an anatomical structure, and repairing or replacing the anatomical structure. The method further comprises introducing the wireless device into an anatomical cavity (e.g., a blood vessel or a heart chamber) via the surgical opening. The method further comprises affixing the wireless device within the anatomical cavity (e.g., using the securing means set forth above), wherein the entire device is contained within the anatomical cavity.

Systems and methods are provided for magnetically and mechanically navigating catheters. The system comprises a catheter that includes an elongated flexible catheter body having a distal end configured to be mechanically actuated to assume a non-compliant curved geometry. The distal end can be mechanically actuated in one of any number of manners. The catheter further comprises a magnetically responsive element and an operative element carried by the distal catheter end. The system further comprises a magnetic navigation system configured for applying a magnetic force to the magnetic element to deflect the distal catheter end. A method of using the system may comprise introducing the catheter within an anatomical cavity, mechanically actuating the distal catheter end to assume the curved geometry within the anatomical cavity, placing the operative element adjacent a target tissue site within the anatomical cavity, and performing a medical procedure on the target tissue site with the operative element. The magnetic navigation system can be used during catheter navigation and / or to firmly place the operative element against the target tissue site.

A device (1) is designed for locating a region which is situated in a body (10). The device has a fluid-filled reservoir (30) which is closed off in a sealed manner by a displaceable plunger (32) and is connected to a hollow puncture needle (20). To measure the pressure prevailing in the fluid, the device has a pressure gauge (40). A signal converter (50) is used to convert a continuous pressure-measurement signal provided by the pressure gauge (40) into a form which is suitable for further processing. A synthesizer (60) is designed to process the converted pressure-measurement signal into a continuous sound signal which is representative of the pressure. If, during a displacement of the puncture needle (20), a needle point (21) reaches the anatomical cavity (15), the result is a readily perceptible change in the sound signal. The device records the pressure-measurement signal over the course of time.

A cannula supporting coil that comprises a thin resilient elongated member having a proximal portion; an intermediate portion; and, a distal portion. The proximal portion of the thin resilient elongated member comprises a clip portion for capturing a side port of an endoscopic or arthroscopic cannula. The distal portion has a plurality of revolutions to accommodate the main body of the cannula. A terminal portion of a final revolution of the distal portion has less curvature than previous portions of the distal portion for anchoring to an anatomical cavity lining of an anatomical cavity. The cannula supporting coil is used as a component of a cannula delivery and support system that also includes an elongated sheath for containing the cannula supporting coil during delivery of the cannula supporting coil to the anatomical cavity; and, an elongated trocar contained within the sheath. Once the cannula delivery and support system is in the cavity the trocar is reinserted in an inverted position and utilized as a plunger for the cannula supporting coil.

The present invention relates to a device and method for accessing an anatomical cavity using a natural body orifice where penetration of a tissue wall is required. In particular, an objective of this invention is to provide a system for delivering an access device to the abdominal cavity through the bladder. An access device is described suitable for introduction into the bladder, at least partially disinfecting the access site, accessing the abdominal cavity through a wall of the bladder and insufflating the bladder and the abdominal cavity as required. The access device may be used to deliver an endoscope or other diagnostic or therapeutic instruments into the abdominal cavity.

A probe for a dermal phase meter includes a handle with an extension that terminates with a displaceable center conductor. A replaceable tip attaches to the distal end of the extension and includes a center conductor that engages the center conductor in the extension and an outer conductor that establishes electrical connection through the extension. Substituting different replacement tips provides a probe with an articulation capability. Probe tips with a layer of a patient compatible, compressible elastomer overmolded onto the outer conductor provides insulation and minimizes the potential for irritating tissues during a measurement in an anatomical cavity.

A surgical instrument is provided for use in performing endoscopic procedures having a handle and an elongate tubular member having a proximal end coupled with the handle for being disposed externally of the anatomical cavity and a distal end for being disposed within the anatomical cavity. The distal end further includes a pair of opposed, relatively movable jaws that form a grasping portion operable by manipulation of the handle to releasably grasp a releasable trocar. The releasable trocar has a complementarily shaped shank, a relatively sharp tip and may include a pair of blunt-edge tissue separators that project outwardly from the outer surface of the trocar. In an alternative embodiment, the relatively movable jaws define (i) a grasping portion operable by manipulation of the handle to grasp or cut objects; and (ii) a pair of blunt-edge tissue separators that project outwardly from the outer surface of the jaws so that when the jaws are in a closed position they may be used as a trocar. In another embodiment, a portal tube is sealingly positioned on the elongate tubular member and is operative to move between (i) a first position in which the portal is in a proximal location on the elongate tubular member and in spaced relation to the anatomical cavity, and (ii) a second position in which the portal is in a distal location on the elongate tubular member and in sealed communication with said anatomical cavity. The optional portal may be used with either the releasable trocar or the jaw trocar. A method for using the surgical instrument is also provided.

A device for closing at least one opening leading to an anatomical cavity is delivered via a catheter positioned in a first opening leading to the anatomical cavity. An orientation control unit is positioned within the anatomical cavity. The orientation control unit defines an orientation of a portion of a tissue surface within the anatomical cavity that is skewed with respect to the first opening and orients a closure member of the device with the tissue surface. An occluding member and a constricting unit of the device are positioned within the anatomical cavity with the occluding member blocking a portion of an opening that is constricted by the constricting unit. An intermediate member of the device is positioned within the anatomical cavity and a closure unit employing at least one piercing element pierces through the intermediate member into a tissue wall surrounding the anatomical cavity.

Methods and devices are disclosed for providing access through tissue to a surgical site, such as anatomical cavities ranging in size from the abdomen to small blood vessels, such as veins and arteries, epidural, pleural and subarachnoid spaces, heart ventricles, as well as spinal and synovial cavities. In one exemplary embodiment, an access port is provided having one or more electrically expandable and contractible actuators that are adapted to change an orientation of the access port.

Methods and devices are disclosed for providing access through tissue to a surgical site, such as anatomical cavities ranging in size from the abdomen to small blood vessels, such as veins and arteries, epidural, pleural and subarachnoid spaces, heart ventricles, as well as spinal and synovial cavities. In one exemplary embodiment, an access port is provided having one or more electrically expandable and contractible actuators that are adapted to change an orientation of the access port.

A cup intended to interact with a prosthetic humeral head has a generally circular shape and positioning and anchoring devices for embedding the cup in an anatomical glenoid cavity in such a way that a load-bearing and sliding surface of the cup is integrated into the continuity of the anatomical cavity so as to be perfectly congruent with the humeral head.

Method and apparatus for preventing air embolisms during surgical procedures which involves providing a fluid source in communication with an aperture extending into an anatomical cavity such that fluid may be delivered into the cavity when a condition of negative pressure exists in the cavity, thereby preventing the introduction of air into the cavity.

The three dimensional, low friction vasoocclusive coil has a portion that is three dimensionally box or cubed shaped. The three dimensional box or cubed shaped portion will form a basket for filling the anatomical cavity at the site in the vasculature to be treated. The vasoocclusive device is formed from at least one strand of a flexible material formed to have a first inoperable, substantially linear configuration for insertion into and through a catheter or cannula to a desired portion of the vasculature to be treated, and a second operable, three dimensional configuration for occluding the desired portion of the vasculature to be treated. The vasoocclusive coil may optionally include a portion that is substantially J-shaped or helically shaped, for filling and reinforcing the three dimensional portion.

Method and apparatus for preventing air embolisms during surgical procedures which involves providing a fluid source in communication with an aperture extending into an anatomical cavity such that fluid may be delivered into the cavity when a condition of negative pressure exists in the cavity, thereby preventing the introduction of air into the cavity.

A computer-implemented method to create a model used for fabrication of a device configured for placement in an anatomical cavity of a wearer may include first selecting training data and / or testing data by obtaining feedback and data for a plurality of devices fabricated for a plurality of subjects, wherein each of the plurality of devices are fabricated based on a three-dimensional scan of an anatomical cavity of one of the plurality of subjects. The training data set is used to train a machine learning model for transforming a three-dimensional scan of an anatomical cavity to a three-dimensional representation of a device for fabrication.

Embodiments of the present disclosure are directed to forming an applicator for insertion into an anatomical cavity of a patient for delivering a treatment to the patient The method may include receiving a three-dimensional image of the anatomical cavity, wherein the three-dimensional image is generated while the anatomical cavity contains an expandable container adjacent a tissue region of the patient The container may be expanded when contained in the anatomical cavity to substantially conform to the shape of at least a portion of the tissue region forming at least a portion of the anatomical cavity. The method may further include isolating, from the three-dimensional image, a first sub-image corresponding to an image of the filled expanded container and using the sub-image as a design template for forming the applicator for use with the patient.

Systems, methods and compositions relating to delivering synthetic polymer formulations to the body are described, which can be used by a range of medical personnel including those with minimal experience and training. Under some embodiments, the present invention relates to systems and devices for delivering polymer formulations to a body cavity (e.g. peritoneal cavity) to reduce or stop bleeding. Under some embodiments, an initial percutaneous access pathway is first formed using a delivery device with a probe and needle mechanism that automatically stops the advance of the device upon insertion into a body cavity or space, thus minimizing user error and improving patient safety. The hollow probe then allows transmission of polymer, mixed with gas and / or additional substances, from a holding chamber or canister to flow through the device and hollow probe into the patient's anatomic cavity or space of interest, stopping expansion when the device senses the appropriate pressure. Once reaching the body cavity, the polymer formulation functions to reduce and / or stop bleeding.

The invention discloses a dissecting box for a students' biological dissection experiment. The dissecting box comprises a box body, wherein a working chamber, a cleaning solution chamber and a pollution discharge chamber are formed in the box body; a partition plate is arranged in the working chamber; the working chamber is partitioned into a dissection chamber and a storage chamber by the partition plate; a drawer is arranged in the storage chamber; a stepped groove is formed in the open end of the dissection chamber; a working plate is arranged on the stepped groove; a plurality of infiltration holes are uniformly formed in the working plate; the bottom end of a side wall of the dissection chamber is connected with a pollution discharge channel in a penetrating manner; the top wall of the cleaning solution chamber is connected with a water faucet and a water adding pipe in a penetrating manner; the bottom end of the water faucet is connected with a water suction pipe in a penetrating manner; a micro water pump is arranged on the water suction pipe; one side wall of the pollution discharge chamber is connected with a pollution discharge pipe in a penetrating manner; and a plurality of supporting legs are uniformly arranged at the bottom end of the box body. According to the water faucet, the sprayed cleaning solution can be used for cleaning instruments and hands as well as the dissection chamber, the dissection chamber is directly disinfected by light irradiated by an ultraviolet lamp, the dissection chamber is always in a sterile state, and various bacteria can be effectively prevented from breeding.

The invention describes a device (1) for locating an anatomical cavity (15) within the body (10). The device includes a fluid-filled container (30) sealed in a sealing manner by a movable plunger (32) and in communication with a hollow puncture needle (20). To measure the pressure in the fluid, the device includes a pressure gauge (40). A signal converter (50) is used to convert the continuous pressure measurement signal provided by the pressure gauge (40) into a form suitable for further processing. The synthesizer (60) is designed to process the converted pressure measurement signal into a continuous sound signal representing the pressure. If the needle tip (21) reaches the anatomical cavity (15) during the displacement of the puncture needle (20), an easily perceptible change occurs in the acoustic signal. The device includes recording means for recording pressure measurement signals over a period of time.