摘要:
Tissue removal probes comprise an elongated member, a drive shaft rotatably disposed within the member, and a rotatable tissue removal element mounted to the distal end of the drive shaft. One tissue removal element comprises a plurality of tissue-cutting filaments affixed at proximal and distal ends of the tissue removal element. The cutting filaments may have optional hinge points that allow the distal end of the tissue removal element to be inverted, thereby transforming the tissue removal element from a tissue-cutting device to a tissue-grasping device. Another tissue removal element may have a blunted tip to prevent distal tissue trauma and an irrigation port to provide irrigation fluid to the removed tissue and/or tissue removal element. Another tissue removal element has a proximal and distal spiral grooves that are oppositely pitched, so that removed tissue can be collected in the middle of the tissue removal element.
摘要:
An apparatus for mixing and dispensing a multi-component compound. The device includes a tubular body with an internal chamber for mixing the multi-component compound. Disposed within and extending beyond the tubular body is a rod having a mixing disc located near a distal end. Also disposed within the tubular body is a moveable piston with a central opening through which the rod may pass.
摘要:
An apparatus for delivering bone cement into a vertebra includes a cannula and a mix and delivery device pivotally coupled to the cannula. The mix and deliver provides a single device in which a flowable compound may be mixed and the dispensed into the vertebrae through the cannula. The mix and delivery device includes a piston, slidably disposed within a barrel of the device, for advancing the bone cement through an outlet communicating with the cannula. An actuating device, which exerts a pressure, is connected to an inlet on the mix and delivery device (either directly or through a tube). The pressure created by the actuating device is used to advance the piston within the mix and delivery device.
摘要:
A process for converting a tertiary halogenated hydrocarbons in a tertiary halogenated hydrocarbon-containing stream to a corresponding unhalogenated or less-halogenated unsaturated hydrocarbon product with the release of hydrogen halide involves contacting the tertiary halogenated hydrocarbon with a sorbent-type dehydrohalogenation catalyst in a reaction zone and optionally passing a stripping gas through the reaction zone to remove vapor phase reaction products from the reaction zone. A process for removing a tertiary chlorinated hydrocarbon impurity from 1,3-dichloro-1-propene involves contacting a mixture containing the 1,3-dichloro-1-propene and the tertiary chlorinated hydrocarbon impurity with a dehydrochlorination catalyst effective to catalyze a conversion of the tertiary chlorinated hydrocarbon impurity to a corresponding unchlorinated or less-chlorinated unsaturated hydrocarbon and hydrogen chloride and distilling the 1,3-dichloro-1-propene to produce a purified cis-1,3-dichloro-1-propene fraction and a purified trans-1,3-dichloro-1-propene fraction.
摘要:
A heat transfer label, a method of manufacturing a heat transfer label and a method of labeling untreated or minimally treated polyethylene, polypropylene polymers and polyethylene-polypropylene copolymer containers and sheets that are at room temperature or heated up to 180 degrees Fahrenheit, entail providing a heat transfer label that includes a support portion and a transfer portion over the support portion for transfer of the transfer portion from the support portion to the article upon application of heat to the support portion while the transfer portion is placed in contact with the article. The transfer portion comprises a single or multiple color design. The transfer portion then is transferred from the support portion to the article.
摘要:
A heat transfer label, a method of manufacturing a heat transfer label and a method of labeling untreated or minimally treated polyethylene, polypropylene polymers and polyethylene-polypropylene copolymer containers and sheets that are at room temperature or heated up to 180 degrees Fahrenheit, entail providing a heat transfer label that includes a support portion and a transfer portion over the support portion for transfer of the transfer portion from the support portion to the article upon application of heat to the support portion while the transfer portion is placed in contact with the article. The transfer portion comprises a single or multiple color design. The transfer portion then is transferred from the support portion to the article.
摘要:
The present printing process provides a multilayer coating system comprising a low viscosity, latent, heat-curable thermoplastic adhesive layer, colored ink interlayer, and an abrasion-resistant top lacquer layer that can be utilized for production of heat transferable labels suitable for labeling bottles and other containers that are subjected for over ten cycles to immersion in heated aqueous sodium hydroxide solution for cleaning prior to re-use.
摘要:
A heat-transfer label is particularly well-suited for use on silane-treated glass containers of the type that are subjected to pasteurization conditions, regardless of whether the glass containers have been pre-treated previously with polyethylene, oleic acid, stearate or the like. The heat transfer label comprises (a) a support portion consisting of a sheet of paper or film overcoated with a layer of releasable material such as polyethylene and (b) a transfer portion over said support portion for transfer of the transfer portion from the support portion to an article, upon application of heat to the support portion, and placing the transfer portion in contact with the article.
摘要:
A method for the treatment of a stenosis or an occlusion in a blood vessel is disclosed in which a main catheter is first delivered to a site proximal to the occlusion. The main catheter may include an occlusive device at its distal end. An inner catheter or elongate member (e.g., a guidewire) having an occlusive device at its distal end is delivered to the site of the occlusion, and the occlusive device is activated at a site distal to the occlusion. A therapy catheter is then introduced to treat the occlusion. Next, a catheter is delivered just proximal to the occlusive device, and this catheter is used to aspirate and/or irrigate the area removing particles and debris. The aspiration and irrigation steps are preferably repeated until the particles and debris are removed. Perfusion may be performed by using a perfusion-filter distal of the lesion to be treated or a hypotube which extends beyond the occlusive device attached to the guidewire. The present invention provides for a minimally invasive procedure which can be performed quickly and efficiently, with reduced risks to the patient.
摘要:
An intravascular catheter having an elongated tubular body with a proximal portion, a distal portion and a lumen extending therebetween. The tubular body is formed with: (a) a first layer of polytetrafluoroethylene; (b) a reinforcing means at least partially surrounding the inner layer; and (c) a second layer comprising a blend of polyetherester elastomer and polybutylene terephthalate at least partially covering the second layer.