Abstract:
A valve including a substantially ridig cannula and a valve member positioned for operable communication with the cannula. The valve member is formed from a substantially resilient material, having a slit extending therethrough, and movable with respect to the cannula between a first closed position and a second open position. The slit is substantially closed by the resiliency of the material of the valve member when the valve member is positioned in the first closed position and the cannula cooperates to extend through the slit during movement of the valve member from the first closed position to the second open position to establish a fluid flow path through the cannula and the valve member. A sealing member is also provided independant from a flow of fluid within the fluid flow path to provide positive sealing of the slit when the valve member is positioned in the first closed position.
Abstract:
This invention pertains to a reseal member made of a soft elastomeric material used for sealing a fluid access port. The reseal member is inserted into the fluid access port and prevents fluids from passing therethrough. The reseal member is provided with a slit or recess, or both, that allows a user to exert minimal force to insert a blunt cannula into the reseal member to create a passage to pass fluids through the reseal member. Upon withdrawal of the blunt cannula, the reseal forms a generally fluid-tight seal so that fluids cannot pass through the reseal.
Abstract:
A reseal (40) with a partially perforated membrane (108) is provided along with a method and apparatus for making such a reseal (40). In a preferred embodiment, the reseal membrane (108) is subjected to a tensile force, and a cutting edge of a lance (90) is advanced partially into the reseal membrane (108). More than one partial perforation can be provided in special configurations. Apparatus for providing a reseal membrane (108) with such a partial perforation includes a clamp assembly for clamping a periphery of the reseal, an anvil (80) for engaging one side of the reseal membrane (108), positioning mechanisms for effecting relative movement between the anvil (80) and clamp assembly to stretch the membrane (108), a lance (90) defining a cutting edge and a mounting structure for holding the lance adjacent the other side of the reseal (40), and a drive system for effecting relative movement between the lance (90) on the one hand and the anvil (80), clamping assembly, and reseal (40) on the other hand so as to effect partial penetration of the membrane (108) with the cutting edge of the lance (90).
Abstract:
The present invention relates to a sterile form, filled and sealed flexible solution container (10) and an attached port assembly (12) that allows for the sterile dispensing of the solution. In particular, the present invention relates to a sterile formed, filled and sealed flexible solution without interrupting the complete sealing of the hermetically sealed fluid container and which allows for the sterile packaging, storage and delivery of a sterile medical solution without heat degradation or oxygen permeation.
Abstract:
Medical drug formulation and delivery system includes a reverse osmosis device for purifying water from a source comprising a housing having an inlet for passage of water from the source, a first outlet for passage of purified water from the housing and a second outlet for passage of waste water remaining after purification. A first reverse osmosis multilayer assembly is disposed within the housing in fluid communication with the inlet for purification of at least a first portion of the water from the source. Water treatment chemicals can be positioned in a core about which the first reserve osmosis multilayer assembly is wound. The treatment chemicals are in fluid communication with the first reverse osmosis multilayer assembly to receive the first purified portion of water and for removal of at least chemical contaminants therefrom. A second reverse osmosis multilayer assembly is also wound on the core and is in fluid communication with the water treatment chemicals to receive the chemically purified water for purification of at least a second portion thereof. The second reverse osmosis multilayer assembly is in fluid communication with the first outlet so as to permit passage of the second portion of purified water therethrough. In one preferred embodiment, the first and second reverse osmosis assemblies are formed integrally in a side by side configuration. In an alternative embodiment, they are rolled about the core in an interleaf configuration. A method of forming a reverse osmosis device, a peritoneal dialysis treatment system and alternative treatment systems incorporating such a device as well as corresponding methods of treatment are also disclosed.
Abstract:
This invention pertains to a reseal member made of a soft elastomeric material used for sealing a fluid access port. The reseal member is inserted into the fluid access port and prevents fluids from passing therethrough. The reseal member is provided with a slit or recess, or both, that allows a user to exert minimal force to insert a blunt cannula into the reseal member to create a passage to pass fluids through the reseal member. Upon withdrawal of the blunt cannula, the reseal forms a generally fluid-tight seal so that fluids cannot pass through the reseal.
Abstract:
A valve including a substantially ridig cannula and a valve member positioned for operable communication with the cannula. The valve member is formed from a substantially resilient material, having a slit extending therethrough, and movable with respect to the cannula between a first closed position and a second open position. The slit is substantially closed by the resiliency of the material of the valve member when the valve member is positioned in the first closed position and the cannula cooperates to extend through the slit during movement of the valve member from the first closed position to the second open position to establish a fluid flow path through the cannula and the valve member. A sealing member is also provided independant from a flow of fluid within the fluid flow path to provide positive sealing of the slit when the valve member is positioned in the first closed position.
Abstract:
A reseal (40) with a partially perforated membrane (108) is provided along with a method and apparatus for making such a reseal (40). In a preferred embodiment, the reseal membrane (108) is subjected to a tensile force, and a cutting edge of a lance (90) is advanced partially into the reseal membrane (108). More than one partial perforation can be provided in special configurations. Apparatus for providing a reseal membrane (108) with such a partial perforation includes a clamp assembly for clamping a periphery of the reseal, an anvil (80) for engaging one side of the reseal membrane (108), positioning mechanisms for effecting relative movement between the anvil (80) and clamp assembly to stretch the membrane (108), a lance (90) defining a cutting edge and a mounting structure for holding the lance adjacent the other side of the reseal (40), and a drive system for effecting relative movement between the lance (90) on the one hand and the anvil (80), clamping assembly, and reseal (40) on the other hand so as to effect partial penetration of the membrane (108) with the cutting edge of the lance (90).
Abstract:
This invention pertains to a reseal member made of a soft elastomeric material used for sealing a fluid access port. The reseal member is inserted into the fluid access port and prevents fluids from passing therethrough. The reseal member is provided with a slit or recess, or both, that allows a user to exert minimal force to insert a blunt cannula into the reseal member to create a passage to pass fluids through the reseal member. Upon withdrawal of the blunt cannula, the reseal forms a generally fluid-tight seal so that fluids cannot pass through the reseal.
Abstract:
Formulation et système de diffusion d'un produit médical qui comprend un dispositif d'osmose inversée servant à purifier l'eau provenant d'une source et comportant un boîtier pourvu d'une entrée pour la circulation de l'eau provenant de la source, une première sortie pour la circulation de l'eau purifiée provenant du boîtier et une deuxième sortie pour la circulation de l'eau usée restant après purification. Un premier ensemble multicouches d'osmose inversée est situé à l'intérieur du boîtier, en communication fluidique avec l'entrée, dans le but de purifier au moins une première partie de l'eau provenant de la source. On peut placer des substances chimiques de traitement d'eau dans un noyau autour duquel s'enroule le premier ensemble multicouches d'osmose inversée. Les substances chimiques de traitement sont en communication fluidique avec le premier ensemble multicouches d'osmose inversée pour recevoir la première partie d'eau purifiée et en supprimer au moins les contaminants chimiques. Un deuxième ensemble multicouches d'osmose inversée s'enroule également sur le noyau et se trouve en communication fluidique avec les substances chimiques de traitement d'eau pour recevoir l'eau purifiée chimiquement pour en purifier au moins une deuxième partie. Le deuxième ensemble multicouches d'osmose inversée est en communication fluidique avec la première sortie pour permettre la circulation de la deuxième partie d'eau purifiée à travers ladite sortie. Selon un mode de réalisation préféré, le premier et le deuxième ensembles d'osmose inversée sont solidaires en position contiguë. Selon un autre mode de réalisation, ils s'enroulent autour du noyau en position intercalée. L'invention décrit également un procédé de construction d'un dispositif d'osmose inversée, un système de dialyse péritonéale et des systèmes de traitement alternatifs intégrant ledit dispositif ainsi que des procédés de traitement correspondants.