39 results about "Grommet Insertion" patented technology

A holder is provided which couples to the spine. In an embodiment, the holder has two conduits into which sleeves may be inserted during a spinal fusion procedure. The holder may have a distractor extending from the bottom of the holder. The distractor secures the holder to the spine and maintains a proper separation distance between adjacent vertebrae. The sides of the distractor may be serrated to better secure the holder to the spine. The sleeves and conduits serve as alignment guides for instruments and implants used during the procedure. In an embodiment, the holder may include holes for fasteners that fixably secure the holder to vertebrae adjacent to a disc space. A flange may be placed around the holder to shield surrounding tissue and to provide a placement location for adjacent blood vessels during the spinal fusion procedure.

A surgical kit for inserting a biological material into a portion of the skeletal bone by a minimally invasive technique has several components which are manually operated using a universal tool. The kit includes a docking needle used as a guide for placing a cannula in a bone. The tool has a spring loaded hinged connection for temporarily attaching to the other components and which locks upon release of compression. An ultrasonic probe is inserted through the cannula for forming a cavity within the soft tissue of the bone. Treatment or support material is placed in the cannula and a plunger is inserted in the cannula. The universal tool is connected to the plunger and the material is expelled by telescopic movement of the plunger.

A surgical kit for inserting a biological material into a portion of the skeletal bone by a minimally invasive technique has several components which are manually operated using a universal tool. The kit includes a docking needle used as a guide for placing a cannula in a bone. The tool has a spring loaded hinged connection for temporarily attaching to the other components and which locks upon release of compression. An ultrasonic probe is inserted through the cannula for forming a cavity within the soft tissue of the bone. Treatment or support material is placed in the cannula and a plunger is inserted in the cannula. The universal tool is connected to the plunger and the material is expelled by telescopic movement of the plunger.

A holder is provided which couples to the spine. In an embodiment, the holder has two conduits into which sleeves may be inserted during a spinal fusion procedure. The holder may have a distractor extending from the bottom of the holder. The distractor secures the holder to the spine and maintains a proper separation distance between adjacent vertebrae. The sides of the distractor may be serrated to better secure the holder to the spine. The sleeves and conduits serve as alignment guides for instruments and implants used during the procedure. In an embodiment, the holder may include holes for fasteners that fixably secure the holder to vertebrae adjacent to a disc space. A flange may be placed around the holder to shield surrounding tissue and to provide a placement location for adjacent blood vessels during the spinal fusion procedure.

An antibacterial fluid may be applied to a tubular medical cannula for access to a patient. The fluid comprises a typically metabolizable antibacterial formulation having a viscosity preferably greater than 150,000 cp. The cannula may then be inserted into the patient with an increased lubricity for a reduction of pain, while at the same time, unlike silicones, preferred materials do not readily accumulate in the patient. The fluid may be placed on the skin. The tubular medical cannula may be a rigid, hollow needle, sharp or blunt, a spike, or a flexible catheter. Also, the viscous antibacterial fluid may be used to lock a catheter or other cannula while implanted in the patient, for storage purposes. The formulation is typically an alcohol plus a viscosity increasing agent and optionally a surfactant, a clotting agent, and / or EDTA.

A safety intravenous cannula and catheter device is disclosed. The device permits easy insertion of a cannula made of a biocompatible material into the vein with a guide needle and withdrawal of the guide needle into a safety chamber with an in- built locking mechanism with completely prevents removal and / reuse of the needle. The needle before insertion is protected by a biocompatible sheath which when inserted into the vein and after withdrawal of the needle acts as catheter. Similarly, after withdrawal the needle is locked inside a safety chamber in such a manner that at no time does the user come into contact with the needle or in any danger of accidental injury.

Device and method for rapid extraction of body tissue from an enclosed body cavity. Hollow entry cannula with optional core element provides entry into body tissue space such as bone marrow. Aspiration cannula is inserted through cannula into body tissue and is manipulated to advance directionally through body cavity. Optional stylet within aspiration cannula aids in advancing aspiration cannula through body tissue and is removed to facilitate extraction of body tissue through the aspiration cannula. Inlet openings near distal tip of aspiration cannula allow tissue aspiration, with negative pressure source at proximal end of aspiration cannula providing controlled negative pressure. Aspiration cannula may be withdrawn and its path adjusted for multiple entries through the same entry point, following different paths through tissue space for subsequent aspiration of more tissue.

An enhanced catheter introducer and method for making the same are disclosed. The catheter introducer may have a splittable sleeve assembly configured to be inserted into a blood vessel with a cannula. The cannula may then be removed, and a catheter may be inserted into the sleeve assembly. The sleeve assembly may be removed from the catheter by pulling handles of the sleeve assembly in different directions to split the sleeve assembly into two pieces. The sleeve assembly may have failure zones that enable the sleeve assembly to be easily split; the failure zones may take the form of thinned regions running along the length of the sleeve assembly. The sleeve assembly may be injection molded with a single step by injecting flows of molten plastic into a cavity of a mold such that the flows converge into an even distribution about the circumference of the sleeve. The mold may have a core pin designed to fit into the cavity. Through the use of the even distribution of flows, the core pin may seat within the cavity in an untensioned manner.

A method for performing a selective discectomy is disclosed whereby a path for insertion of a tissue removal device is created by inserting a cannula with a flexible distal end position into an intervertebral disc by entering the nucleus at a point contralateral or anterolateral to a herniation site or entering anterior or anterolateral relative to the herniation site. The path is followed by a cutting device with a cutting window and either or both of the cannula or cutting device may be positioned at a site of herniation using all of any of control wires, a set of styli, viewable markings on a component and / or visualization devices.

A flexible walled cannula apparatus and method of use comprising a uniquely deformable cannula tube and head in combination with a uniquely shaped obturator which allows the use of heretofore unusable larger gauge surgical instruments while providing a self sealing incision. The apparatus and method of use provides a preassembled obturator and cannula assembly with which the surgeon forms an incision or channel, inserts the cannula tube, and through the cannula inserts surgical instruments to perform a surgical operation. The apparatus and method of use is especially suited for ophthalmic surgical operations. Alternative embodiments for use with even larger diameter instruments utilize a uniquely designed valve having leaflets which prevent bodily or other fluid leakage from the cannula when an instrument is not inserted.

A fluid delivery cannula which provides an interface between an access point or port site in the body of a patient and a working channel which may receive tools or instruments used during surgical procedures which may be less invasive surgical procedures than traditional open procedures. The cannula allows introduction of fluid(s) into the port site and then into tissue generally at or near that location within the body of the patient. The fluid delivery cannula includes an expandable sleeve that may itself comprise a cannula through which a needle, or trocar assembly is inserted. At least one fluid passageway, is defined, for example, in either the expandable sleeve itself, or defined, by the combination of the needle or trocar assembly and the expandable sleeve. Visual identifiers are used with the fluid delivery cannula to visually distinguish the location of the fluid passageway relative to an adjacent area.

Device and method for rapid extraction of body tissue from an enclosed body cavity. Hollow entry cannula with optional core element provides entry into body tissue space such as bone marrow. Aspiration cannula is inserted through cannula into body tissue and is manipulated to advance directionally through body cavity. Optional stylet within aspiration cannula aids in advancing aspiration cannula through body tissue and is removed to facilitate extraction of body tissue through the aspiration cannula. Inlet openings near distal tip of aspiration cannula allow tissue aspiration, with negative pressure source at proximal end of aspiration cannula providing controlled negative pressure. Aspiration cannula may be withdrawn and its path adjusted for multiple entries through the same entry point, following different paths through tissue space for subsequent aspiration of more tissue.

A cannula having a body, a sealing disc, and a cap. The sealing disc is located within the body and is compressed by the cap. An angled cut in the sealing disc allows microsurgical instruments to be inserted through the cannula into the eye. Upon removal, the cut in the sealing disc closes, preventing the loss of intraocular pressure.

The present invention provides a highly automated puncture system for inserting a cannula or a needle into a blood vessel of a person or an animal. The puncture system has an acquisition module that allows for determining at least a location of a blood vessel underneath of the surface of a skin and is further enabled to determine an optimal puncture location that is well suitable for inserting a cannula into the blood vessel. Further, the puncture system has an actuator for moving and aligning the cannula to a determined position. The system is further adapted to autonomously insert the cannula into the blood vessel for multiple purposes, such as blood withdrawal, venous medication and infusions.

An anal inserting cleaning feces bag relates to a medical plastic equipment supply which adopts the physical or mechanical operation to remove feces for patients or caregivers and exempt from the harm caused by the increase of the intra-abdominal pressure which is caused by the initiative defecation of the patients or the caregivers by plugging into the anal. The whole structure is formed by connecting a casing, ancillary components and a soft transparent plastic bag. The casing is inserted into the the anal. In order to avoid the injury of the anal mucosa caused by the inserting of the casing, a casing core with the shape of a bullet on the top is inserted into the anal together with the casing. Once the casing is inserted into the anal, the casing core loses the function and is thrown into a plastic bag. The front end of the outer wall of the casing is provided with a ring sponge body sealed by a rubber film and an air duct controlling the incoming and the outgoing of air, so the tightening and the cracking off of the casing inserting into the anal are determined. After the casing is inserted into the anal, the thin feces can be discharged into the connected plastic bags by the casing directly under the peristalsis of intestines, a cleaning spoon arranged in one side of the plastic bag can be used to clean the feces which can not be discharged by the peristalsis of the intestines, or enema is inserted or medicinal oil is filled from an open hole of the other side for infiltration to help cleaning the feces.

A hemodialysis catheter assembly with a flexible catheter lead that can control blood flow at a hemodialysis access site even under high blood pressures encountered at such sites. Flexible tubing extends through the hollow interior of a housing having opposite, open ends. The assembly includes components to alternately occlude or not occlude the lumen of the flexible tubing. In a first embodiment, spring clips press against the tubing, but insertion of a hollow sleeve into the lumen thereof retracts the clips and provides a flow path. In a second embodiment, a pinch bar can be manually moved into and out of engagement with the flexible tubing to occlude or open a flow path. In a third embodiment, the housing has a screw cap. A spring-loaded pinch bar presses against, and occludes the lumen of, the collapsible tubing when the screw cap is screwed into a threaded cutout in the housing, and provides a flow path through the tubing when the screw cap is removed. In a fourth embodiment, the tang portion of a tongue when in an extended position presses against, and occludes the lumen of, the compressible tubing; advancement of a capture ring attached to a sliding button retracts the tang portion and opens a flow path.

A method and apparatus for the safe surgical placement of trochars, is provided. The trochar has a sheath protecting the sharp point. The guide includes a receiver, into which the trochar with sheath is inserted, protecting personnel against sticks. The guide has a holder that grips the trochar in the X, Y, Z and Theta directions, providing position and direction of the point. The guide provides a handle for holding the trochar, reducing effort. The trochar point is exposed only after opening the guide. The receiver with sheath is a target, which provides an accurate reference for the position of the sharp point. The target also provides support as the trochar is being advanced through soft tissue. The trochar is locked into the safety guide until the guide is closed, and the point is safely in the sheath. Since the guide may not be reopened, the trochar point and body fluids are safely covered. Operating Room personnel are protected against hazardous sharps injuries.

An endoscope puncture sampling needle used for a bronchoscope comprises a handle, a needle core, an injector, and a needle tubing fixed on the handle and connected with the injector; the needle tubing is sleeved with a needle sheath with an internal diameter slightly greater than the outer diameter of the needle tubing; a connection end of the needle sheath and the handle is provided with a sleeve; a surface of the sleeve is provided with grooves; one end of the handle is of an inner concave structure for allowing the sleeve to be inserted into; an inner wall of the inner concave structure is provided with projections matched with the depth and width of each groove; the number of the grooves is two; each groove comprises a disposing area; each disposing area is communicated with an operating channel via an L-shaped moving channel; and one side of each moving channel is provided with a movable area. The endoscope puncture sampling needle is simple in structure and convenient to operate and is suitable for bronchoscopes having different lengths, protection is provided for retracting the sampling needle, and the problems that a traditional sampling needle is entirely controlled by hand feeling when used, so control is inaccurate and detection cannot be carried out due to the fact that tissues captured at a nidus are too less are effectively solved.

The invention discloses a system for continuously injecting stem cells into a minimally-invasive coronary artery blood vessel. The system comprises a casing pipe, a guiding needle and an infusion pipe. The system is characterized in that the guiding needle is inserted in the casing pipe through the casing pipe or inserted in the casing pipe through the rear end of the infusion pipe; the front end of the infusion pipe is connected with the rear end of the casing pipe; when the system is used, the system is arranged in a body; the rear end of the infusion pipe penetrates out of the body through the skin; a hard sheath canal is arranged on the outer side of the part in an infusion pipe body; the outer side of the rear portion of the casing pipe is provided with a casing pipe needle hole sealing structure used for sealing a casing pipe needle hole; when the guiding needle is inserted in through the casing pipe, the outer side of the rear portion of the casing pipe is further provided with a guiding needle hole sealing structure. The device is used for being retained in grafts after coronary artery bypass grafting to intermittently or continuously inject the stem cells into the grafts. The device is small in trauma, capable of injecting the stem cells or other therapeutic medicine into the grafts in vitro, easy and convenient to use and capable of being safely retained in the body when not used.

A device (10) is provided for facilitating insertion of a needle or a cannula into a vein of a patient. The device comprises a fluid chamber (23) adapted to be held in operable engagement with a surface of the patient's skin by a fastener (30 / 34 / 35) that extends about a limb of the patient. The device is adapted to create a volume of reduced pressure within the fluid chamber, so as to facilitate expansion of an underlying part of the vein. The device enables insertion of a needle or cannula into the expanded part of the vein, whilst the fluid chamber remains operably engaged with the surface of a patient's skin.

Please insert the attached Abstract provided herewith on a separate sheet after the claims. The present invention pertains to a method for administering a predetermined amount of a pharmaceutical composition to an animal comprising the steps of taking a cannula suitable for insertion into a nasal cavity of the animal, slidably connecting the cannula to a delivery device which is suitable for holding the pharmaceutical composition, inserting the cannula via a nostril into the nasal cavity such that a peripheral line of the cannula is contiguous with a circumferential line of the nostril, actuating the delivery device to force the said amount of the pharmaceutical composition through the cannula into the nasal cavity, retracting the cannula from the nasal cavity and removing the cannula from the device. The invention also pertains to an apparatus for performing this method, a cannula for use with the apparatus and a kit containing the required components to perform the method.

A cannula support assembly capable of supporting a nasal cannula that delivers oxygen or other gas or gas mixtures to a user is disclosed. The assembly has a plurality of retention clips into which cannula tubes are inserted and retained in a manner so as not to interfere or cause discomfort to a user. The front support assembly housing has a left and a right depression that lowers housing elements well below the line-of-sight of the user so that his or her vision is not impaired when using the assembly. The depressions also allow for the user to wear eyeglasses in conjunction with using the assembly.

A surgical marker / connector in the form of a ring made of a shape memory alloy such as NITINOL is suitable for laparoscopic installation in a patient's body. The ring preferably includes a plurality of small suture attachments in the form of loops that are disposed on the periphery of the ring and which lie in a plane that includes the ring itself. The loops are large enough to receive sutures which, in turn, can be used to connect the ring to a portion of a patient's body, or to connect separate portions of a patient's body to each other using the marker / connector as an intermediate connector. Prior to installation, the ring can be wrapped tightly about an elongate member such as a mandrel, which than can be inserted into the patient's body through a trochar or cannula. After insertion, the ring will change temperature and resume its original configuration where it can be sutured in place as desired.

A surgical apparatus and process for freezing or cauterizing a particular infected body area employing a transparent sleeve insertable through a small slit in the flesh of a patient and wherein the inserted end of the sleeve is provided with a cone-shaped tip having a plurality of segments normally self biased to close to define a dull pointed end susceptible for expansion when a solid, rigid probe is inserted through the sleeve. The end of the probe includes a conical or cone-shaped tip with a small extension or projection that causes expansion of the flaps on the tip of the sleeve. The extension on the end of the probe is placed in alignment position to locate the infected organ or area to be removed. Monitoring of the sleeve and probe insertion and location of the infected area is achieved by video camera. After removing the solid and rigid probe, a fiber optic tube is inserted into the sleeve whereby ambient light is conducted through the tube to the advancing end of the sleeve. A carbon rod is inserted through the fiber optic tube so as to have its pointed end in contact with the tumor, body organ or infected area. The carbon rod is connected to a source of cold or heat. In a cold application, the infected area or tumor is frozen so that when the carbon rod is removed and replaced by a suction device, the frozen infected area or tumor can be fragmented and the particles removed.

A cannula support assembly capable of supporting a nasal cannula that delivers oxygen or other gas or gas mixtures to a user is disclosed. The assembly has a plurality of retention clips into which cannula tubes are inserted and retained in a manner so as not to interfere or cause discomfort to a user. The front support assembly housing has a left and a right depression that lowers housing elements well below the line-of-sight of the user so that his or her vision is not impaired when using the assembly. The depressions also allow for the user to wear eyeglasses in conjunction with using the assembly.