375results about How to "Prevent accidental release" patented technology

A method for protecting at least one gonad from a blood borne cytotoxic drug, the method comprising reducing blood flow to at least one gonad of a patient undergoing cytotoxic treatment for an occlusion time interval, and allowing blood flow to the at least one gonad to resume after the occlusion time interval. Optionally the method is performed to protect an ovary during chemotherapy treatment.

A filter device for temporary placement of a filter in an artery or vein is disclosed. The devices include (1) an elongate tubular member having a single or double side-wire loop, (2) an elongate member having a filter bonded to a circular rim joined by a plurality of tethers and an independently moveable tether, and (3) an elongate member having a parachute filter joined by a plurality of flexible struts. The filter conforms to the interior of a vessel wall when expanded and contracts to a consistent diameter without bunching when stowed. The filter devices may act as guidewires for guiding a therapeutic catheter to a region of interest within a vessel. Methods of using the filter device to entrap and remove embolic material from a vessel during endovascular procedures are also disclosed.

The present invention provides a system for improving diastolic function of the heart comprising elastic elements and attachment elements, wherein said elastic elements and said attachment elements are configured such that they are capable of being interconnected to form a chain formed of an alternating series of said elastic elements and said attachment elements, and wherein said attachment elements are adapted to be anchored in the wall of the heart and with option for drug delivery to the wall of the heart. The invention further provides devices, methods and kits, for mounting the ventricular function assisting device of the invention.

The present invention discloses an automated sealing waste disposal apparatus using tubular material.

A torqueable hollow device, such as a hollow guidewire device, with a pre-determined fixed distal tip is disclosed for removing occlusive material and passing through occlusions, stenosis, thrombus, plaque, calcified material, and other materials in a body lumen, such as a coronary artery. The hollow guidewire generally comprises an elongate, tubular guidewire body that has an axial lumen. A mechanically moving core element is positioned at or near a distal end of the tubular guidewire body and extends through the axial lumen. Actuation of the core element (e.g., oscillation, reciprocation, and / or rotation) creates a passage through the occlusive or stenotic material in the body lumen.

Apparatus and methods are provided to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. Additionally, the apparatus and methods can be used to for running in casing, running in wellbore components or for a drill string.

A hollow guidewire with a shapeable distal end, for removing tissue from a body lumen, such as a coronary artery. The hollow guidewire comprises an elongate, tubular guidewire body that has an axial lumen. A tissue removal assembly, such as a rotating drive shaft, is positioned at or near a distal end of the tubular guidewire body and extends through the axial lumen. Actuation of the tissue removal assembly removes occlusive material in the body lumen.

Improved medical suturing devices, systems, and methods may hold a suture needle at a fixed location relative to a handle of the device, allowing a surgeon to grasp and manipulate the handle of the suturing device to insert the needle through tissues. The exemplary device includes two needle grasping clamps extending from an elongate distal portion for endoscopic surgeries, including ear, nose and throat procedures. The two clamps alternate holding the suture needle, as the surgeon sutures the tissues, each clamp having a proximal and distal gripping jaw for grasping the needle. Preferably, the gripping surfaces of the proximal and distal gripping jaws are substantially parallel to the needle's plane of curvature and exert a holding force on the needle substantially along an axis of the device.

A food jar has an insulated body with a wide-mouth opening for receiving food. A collar is affixed to the opening of the food jar by affixing a throat member to the collar and threading the throat into the wide-mouth body. The throat member includes a gasket at the lower end to seal the throat to the body. A lid is affixed to the collar by a hinge. The lid includes a central projection that extends into sealing contact with the gasket on the throat member to seal the lid to the throat member. A button is mounted in a channel in the lid and biased by a spring to move into an engaging position to engage the collar at an opening in the collar to secure the lid to the collar. A wire loop is provided to engage the button in an embodiment.

The present invention provides an improved orthopedic system in which the part of a device that attaches to the bone is detachable from the rest of the device. The system includes a proximal bone anchor, associated proximal fastener, a distal bone anchor, and associated distal fastener. The bone anchors are affixed to the bone on opposing sides of the bone repair site, which may be an osteotomy. The fasteners serve to releasably mechanically couple the orthopedic device, which may be a distractor, to the bone anchors. In a preferred embodiment, the bone anchors are made from a resorbable material.

An emboli extraction catheter and vascular filter system comprising a guidewire, a vascular filter attached near the distal end of the guidewire, and an emboli extraction catheter. The vascular filter has a smaller first diameter for insertion into the lumen of a vessel, and a second larger diameter for expanding to substantially equal the diameter of the lumen and to be placed in generally sealing relationship with the lumen. The emboli extraction catheter is a flexible catheter comprising a hub attached to the proximal end of the catheter. The hub further comprises a sideport and means for maintaining a seal on the guidewire. The emboli extraction catheter can be used to aspirate embolic particulates, so as to avoid their accidental release after they are captured in a vascular filter, and can also be used to empty full vascular filters of embolic particulates which may block distal flow.

A food jar has an insulated body with a wide-mouth opening for receiving food. A collar is affixed to the opening of the food jar by affixing a throat member to the collar and threading the throat into the wide-mouth body. The throat member includes a gasket at the lower end to seal the throat to the body. A lid is affixed to the collar by a hinge. The lid includes a central projection that extends into sealing contact with the gasket on the throat member to seal the lid to the throat member. A button is mounted in a channel in the lid and biased by a spring to move into an engaging position to engage the collar at an opening in the collar to secure the lid to the collar. A wire loop is provided to engage the button in an embodiment.

Apparatus and methods are provided to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. In one embodiment, an interlock system is used to control the operations of a gripping apparatus connected to the top drive and a spider such that at least one of the top drive or the spider retains the tubular. The interlock system allows the spider to open when the gripping apparatus is supporting a load of the tubular or is in position to support a load of the tubular.

A nozzle adapter for use in converting a nozzle designed for use with Schrader type valves to a nozzle usable with Presta type valves is provided. The nozzle adapter includes an inner sleeve defining a central opening into which the Schrader nozzle can be inserted at one end. The adapter also includes an opening at the opposite end into which a Presta type valve can be inserted. The adapter includes a locking mechanism selectively operable by an outer sleeve that is slidably mounted to the inner sleeve to effectively retain the Schrader nozzle in alignment with the adapter to allow the Schrader nozzle to be utilized as a Presta nozzle.

A method for attaching a flat screen display device onto a flat surface using a surface mounted holder is disclosed. The holder includes a plurality of springy electrical contacts and a plurality of hooks each having a latch. The rear surface of the display device includes corresponding electrical contacts for corresponding with the plurality of springy electrical contacts and sockets each with a convex area corresponding to the hooks each having a latch. The method includes mounting the sockets onto the hooks and pushing the display device toward the flat surface by overcoming a biasing force of the springy contacts; and sliding the display device in a direction opposite to the direction of the hooks until the springy electrical contacts engage the corresponding electrical contacts and every convex area is latched by every latch, and is secured by thebiasing force for preventing accidental release of the display device.

The chain tension of a motorized chainsaw (10) with a housing (12), a sprocket (22) mounted thereon, and a blade (14) that is aligned with this sprocket, which blade protrudes beyond the housing (12) and guides a saw chain (16) engaged with the sprocket (22) in a revolving manner, where the blade (14) is mounted such that it can be adjusted by means of longitudinal displacement in relation to the housing (12) and / or the sprocket (22) by means of a chain tensioning device (28) and where the chain tensioning device (28) has a stop (32) that can be fixed to the blade (14) and a cam (30) that can be rotated by means of a rotational member (36, 38) can be adjusted in a more comfortable and reliable fashion by virtue of the fact that the cam (30) can be locked in a form-fitting and rotationally secure manner in relation to the housing (12) by way of the rotational member (36, 38).

An electroplating rack includes a cathode flight bar from which depends an insulated rack bar over an acid bath. A clamp is fixed to the rack bar, and has a bridge electrically connected to the flight bar through a conducting core inside the insulated rack bar. The clamp has a main body made of plastic, which includes a slot in which protrudes the bridge. An electrically conducting spring clip is installed in the slot, and is formed of two arms continuously biased into a spreaded, opened condition in the slot. A screw carried by the main body, when rotated in a first direction, can force the spring clip into a closed condition, in which it can hold an article to be electroplated between its two arms, and in which one of the spring clip arms is forced against the bridge member. Thus, electrical current can pass through the rack flight bar and conducting core, then through the bridge member, the spring clip and finally into the article to be electroplated. Once the rack is lowered to submerge the article into the acid bath, the latter will be electroplated with this current passing through the article.

The invention provides an underwater releaser, consisting of an electromotion part, a trigger mechanism, an energy storage mechanism, a speed reduction mechanism, a bidirectional overflow mechanism, a dynamic sealing transmission mechanism and a releasing arm, wherein the electromotion part is positioned inside a pressure-resistant cabin; a lower bottom plate of the pressure-resistant cabin is connected with an isolating cabin so as to jointly form a seawater isolating cabin segment in a circle; the seawater isolating cabin segment is provided with the bidirectional overflow mechanism; and the trigger mechanism, the energy storage mechanism and the speed reduction mechanism are all arranged inside the seawater isolating cabin segment. The underwater releaser adopts the design of combining two blocks of U-shaped magnetic steel, ensuring that the maximum trigger power is close to the scalar sum of the gravitational force and repulsive force between the U-shaped magnetic steel; by using a plane volute spring to store energy and using a gear set to reduce speed, the underwater releaser can provide great releasing power; a seawater isolating cabin is built through the bidirectional overflow design, which avoids seawater impact and the adverse effect of marine organisms; through a rotary unhooking mechanism, the releaser can have greater bearing capacity. The underwater releaser is not only better in watertight reliability, but also can work underwater for a long period of time without replacing components.

A lid for forming an airtight seal to a bowl or dish plate to elongate the life of product therein comprises an impermeable membrane having an outer perimeter larger than the rim of the container and an enforcement ring for enabling the formation of an airtight seal between the membrane and rim of the container under vacuum. The membrane is sufficiently soft to cause it to fill the lower sections or imperfections on the rim, thus enabling the lid to form an airtight seal to almost all household containers. The membrane may be adapted to have sufficient low tensile stress, thereby preventing the vacuum in the container from imploding or collapsing the container even if it has a thin or weak wall. The enforcement ring has vertical and horizontal rings connected to the membrane perimeter to prevent the membrane deformation at both vertical and horizontal directions. The lid may further comprise an air evacuation passageway having an air collection chamber for extracting air from the container and a valve for allowing air to flow out of the container but preventing air from entering. In use, the lid may be sealed to a container by simply pushing the membrane into the container and releasing the membrane to generate a vacuum to affix the membrane to the container, or may be sealed to a container by connecting a vacuum generator to the evacuation passageway to evacuate the container.

A packer tool has safety devices to prevent premature and reverse setting and release operations. The safety devices are independent of shear-pin safety systems. Confined annular segments prevent a setting actuator piston from moving absent tool-setting hydraulic pressure. The setting pressure first moves a cylinder in an opposite direction to unroof the segments allowing them to exit confinement and free the piston to set the packing and the anchor slips. Release safety pins extend radially inward from a packing-holder collar into short slots formed on a mandrel surface, preventing the mandrel from being turned. Previous set motion causes the pins to leave the slots thereby freeing the mandrel to turn only after the tool has been set. A third safety device comprises an expanded ring which is dragged by the release cone during release motion until it lodges in a circumferential groove in the mandrel, locking against reverse movement.

A hook mechanism for use with a lifting crane or other lifting apparatus which provides for a safety latch mechanism is disclosed. The hook provides a latching mechanism to prevent accidental or unintentional release of a load, lifting cable or line being held by the hook. The latch mechanism secures the throat of the hook and remains engaged to prevent disengagement of a line being lifted until such release is desired. The latch mechanism is remotely releasable by use of a manually operated release line or in a preferred embodiment a remotely controlled wireless release mechanism. The safety latch element of the hook contains a spring mechanism to provide for automatic opening upon release of the latch by the remote means.

A remotely activated reward dispenser. The remote dispenser delivers consumable rewards in response to a trigger signal from a remote triggering device. The reward dispenser uses a two stage delivery system to prevent unintentional release of the consumable reward. A vibration stage moves a portion of the consumable reward from a reservoir to a staging platform without crushing the consumable reward. The second stage transfers the consumable reward from the staging platform to an area accessible by the animal. A vibration damping system reduces the noise generated by the reward dispenser. An adjustable transition varies the feed rate for the consumable reward.

The cable support block is for temporarily supporting a lower cable to an upper aerial cable. The support block comprises a rigid arcuate frame having an upper yoke straddling the upper cable, and an idle load-bearing roller rotatably mounted on the frame and supporting the lower cable. An elongated coil spring is fixedly attached at a first end thereof to the frame and defines a second opposite free end portion thereof movable relative to the first end by resilient: deformation of the coil spring. To insert a cable into the arcuate frame, the cable is forcibly abutted against the coil spring which will resiliently yield to allow access of the cable into the arcuate frame by being inwardly deformed.

A waste disposal receptacle is provided with an apparatus for sanitarily disposing of solid waste material such as diapers, hospital and nursing home waste products, and biologically hazardous wastes. The receptacle houses an automated mechanism for sealing and packaging the waste material and includes a container, a motorized turning device and a cassette containing a storage of flexible tubing for packaging the waste material.

A fully integrated, self-contained, retrieving trailer hitch for use in coupling heavy laden trailers to large SUV's and RV's. The self-contained module is capable of being plugged directly into a vehicle tow bar hitch receiver and connected to the vehicle's electrical power supply. The module-retrieving hitch contains an integral retracting take-up reel with a cable extending through the docking housing and connected to an extendable docking guide member. The docking member which may be double reeved and adapted for removable connection to ball hitch assemblies generally used for insertion within vehicle tow bar receivers for coupling to a trailer hitch member. The docking guide member automatically locks the guide member within the docking housing upon docking. An interlock is provided for unlocking the docking member.

A material dispensing pump includes a drip prevention system and method so as to avoid undesired dripping of the dispensed fluid. In one example, the fluid path is sealed. Positive pressure is applied to the fluid during a dispensing operation to present the fluid to the auger-style pump at a desired rate. Between dispensing operations, or when dispensing is completed, the fluid is placed in suspension, for example by applying a negative pressure, thereby preventing the fluid from being inadvertently released at the dispense tip. In addition, following a dispensing operation, the pump dispensing controller can be programmed to reverse the rotation of the feed screw, in order to draw the material in a reverse direction and to further suspend the fluid.

Improved closing and locking mechanism for an IOL compressor component of an IOL injector device includes two equally spaced, sequential pairs of catches provided on a wall of the compressor for sequentially engaging with a respective pair of detents formed adjacent the compressor opening of the injector body as the compressor is moved to the closed position.