摘要:
An apparatus for precisely mixing parenteral fluids with infusing agents into an ambulatory patient at specific rates over extended periods of time. The apparatus is of a compact, low profile, laminate construction and includes an elastic distendable membrane (209), or a membrane assemblage, which, in cooperation with a thin planar base (202), defines a fluid chamber (211) having a fluid outlet (214). In certain embodiments of the invention, a thin fluid permeable membrane (215) or membrane assemblage is disposed within the fluid chamber (211) to precisely control the rate of fluid flow through the fluid outlet (214).
摘要:
An in-line blood sampling site is provided having a housing (558) with an access port (564) provided with a septum for receiving a blunt cannula (577). The housing has a blood inlet and a blood outlet communicating with the port and axially offset longitudinally of the access port to form a "Z" like configuration. This arrangement facilitates debubbling during filling of the line and ease of blood clearance after sampling.
摘要:
The present invention provides a piercing member (12) adapted for use with a flow channel. The piercing member (12) has a penetrating member (14) for piercing a solid closure, and is retained to the flow channel, but still allows fluid to flow through the flow channel (72) while retained to the flow channel (72).
摘要:
A blunt-ended cannula insertion member (360) comprises a tubular member having an externally tapered portion (368) extending from the blunt end to facilitate insertion in an injection site, and a cylindrical region (366) extending from the tapered portion, so as to enter the injection site after the tapered portion, so as to reduce kickback during insertion.
摘要:
The injection site comprises a housing having an inlet (494) in line with an outlet (496) with a channel therebetween and an access aperture (496a) in communication with the channel. A resilient septum (502) is provided in the access aperture, is pre-slit for receiving a blunt cannula and has a curved exterior surface.
摘要:
A blunt-ended cannula device for use with a pre-slit resealable injection site (492), the cannula device (512) comprising an elongated member (518) with a fluid flow channel extending generally axially therewithin and through a distal end of the member, the member being generally cylindrical along a substantial portion of its length, and terminating in a generally tapered distal end portion having a blunt end edge. A substantially cylindrical sheath (516) surrounds the elongate member (518) and is at least co-extrusive with and spaced apart from the elongated member to protect the member from inadvertent touch contamination. The distal end of the sheath has at least two slots (528) opposite each other for receiving inlet and outlet portions (494,496) of an in-line injection site (492).
摘要:
Appareil pour infuser de manière exacte des agents médicinaux à un patient en traitement ambulatoire à des taux spécifiques pendant longtemps. L'appareil, à structure laminée compacte et plate, comprend une membrane élastique étirable (24) définissant, en coopération avec une base planaire mince (14), une chambre de fluide (25) pourvue d'une sortie de fluide (22). Un organe mince perméable aux fluides (26) et disposé dans ladite chambre de fluide, contrôle, de manière exacte, la vitesse d'écoulement du fluide à travers la sortie de fluide.