摘要:
A vial adapter suitable for use in transferring fluid from a vial to a needleless syringe, the vial having a top end sealed with a septum. According to one embodiment, the vial adapter comprises (a) a body, the body having a top end, a bottom end and an inner cavity, the inner cavity being dimensioned to receive the vial, with the bottom end of the body extending below the bottom end of the vial; (b) a needle-bearing member mounted within the body, the needle-bearing member comprising a hollow needle extending downwardly into the inner cavity of the body for puncturing the septum of a vial disposed in the inner cavity; (c) a luer-lock-bearing member mounted on the top end of the body, the luer-lock-bearing member comprising a top portion and a bottom portion separated by a radial wall, the top portion being a female luer-lock, the bottom portion including a tubular structure in fluid communication with the hollow needle; and (d) a valve disposed within the luer-lock-bearing member for controlling fluid flow from the bottom portion to the top portion, the valve being opened by attachment of the needleless syringe to the vial adapter.
摘要:
A vial adapter suitable for use in transferring fluid from a vial to a needleless syringe, the vial having a top end sealed with a septum. According to one embodiment, the vial adapter comprises (a) a body, the body having a top end, a bottom end and an inner cavity, the inner cavity being dimensioned to receive the vial, with the bottom end of the body extending below the bottom end of the vial; (b) a needle-bearing member mounted within the body, the needle-bearing member comprising a hollow needle extending downwardly into the inner cavity of the body for puncturing the septum of a vial disposed in the inner cavity; (c) a luer-lock-bearing member mounted on the top end of the body, the luer-lock-bearing member comprising a top portion and a bottom portion separated by a radial wall, the top portion being a female luer-lock, the bottom portion including a tubular structure in fluid communication with the hollow needle; and (d) a valve disposed within the luer-lock-bearing member for controlling fluid flow from the bottom portion to the top portion, the valve being opened by attachment of the needleless syringe to the vial adapter.
摘要:
A vial adapter suitable for use in transferring fluid from a vial to a needleless syringe, the vial having a top end sealed with a septum. According to one embodiment, the vial adapter comprises (a) a body, the body having a top end, a bottom end and an inner cavity, the inner cavity being dimensioned to receive the vial, with the bottom end of the body extending below the bottom end of the vial; (b) a needle-bearing member mounted within the body, the needle-bearing member comprising a hollow needle extending downwardly into the inner cavity of the body for puncturing the septum of a vial disposed in the inner cavity; (c) a luer-lock-bearing member mounted on the top end of the body, the luer-lock-bearing member comprising a top portion and a bottom portion separated by a radial wall, the top portion being a female luer-lock, the bottom portion including a tubular structure in fluid communication with the hollow needle; and (d) a valve disposed within the luer-lock-bearing member for controlling fluid flow from the bottom portion to the top portion, the valve being opened by attachment of the needleless syringe to the vial adapter.
摘要:
An apparatus for treating tissue of a mammalian body. In one embodiment, a spring mechanism is carried by first and second tubular members and actuatable for moving a needle from a first position disposed within the distal extremity of the first tubular member to a second position extending distally of the first tubular member. In another embodiment, a nozzle is coupled to the distal extremity of an elongate tubular member for delivering a material into tissue of the mammalian body. In a further embodiment, a flexible elongate member provided with a recess is introduced into a cavity of the body to capture tissue in the recess and electrical energy is applied to such tissue in the recess so as to change the compliance of the tissue.
摘要:
An apparatus for treating tissue of a mammalian body. In one embodiment, a spring mechanism is carried by first and second tubular members and actuatable for moving a needle from a first position disposed within the distal extremity of the first tubular member to a second position extending distally of the first tubular member. In another embodiment, a nozzle is coupled to the distal extremity of an elongate tubular member for delivering a material into tissue of the mammalian body. In a further embodiment, a flexible elongate member provided with a recess is introduced into a cavity of the body to capture tissue in the recess and electrical energy is applied to such tissue in the recess so as to change the compliance of the tissue.
摘要:
An apparatus for treating tissue of a mammalian body. In one embodiment, a spring mechanism is carried by first and second tubular members and actuatable for moving a needle from a first position disposed within the distal extremity of the first tubular member to a second position extending distally of the first tubular member. In another embodiment, a nozzle is coupled to the distal extremity of an elongate tubular member for delivering a material into tissue of the mammalian body. In a further embodiment, a flexible elongate member provided with a recess is introduced into a cavity of the body to capture tissue in the recess and electrical energy is applied to such tissue in the recess so as to change the compliance of the tissue.
摘要:
A biocompatible fastener particularly well-suited for use in fundoplication procedures. In a preferred embodiment, the fastener is designed to break within the span of approximately three to six months after implantation and comprises a male portion and a female portion. The male portion includes a first base member, the first base member being generally flat and oval. A pair of male members are mounted on the bottom surface of the first base member, each male member comprising a cylindrical post extending downwardly from the bottom surface of the first base member and a conical head disposed at the bottom end of the post. The female portion includes a second base member, the second base member being generally flat and oval. A pair of sleeves are mounted on the top surface of the second base member and extend upwardly therefrom. Each sleeve defines a bore adapted to receive a head from a corresponding male member and has an inner flange formed thereon. The flange extends radially into the bore and is engageable with the head once the head has been inserted therepast so as to inhibit withdrawal of the head from the bore. Except for an outer coating on each of the two heads, the fastener is made entirely of a non-bioabsorbable material or a bioabsorbable material having a relatively slow degradation rate. By contrast, the outer coating is made of a bioabsorbable material having a relatively fast degradation rate. The thickness of the outer coating is appropriately selected so that degradation of the outer coating permits each head to be withdrawn past its flange after a desired period of time.
摘要:
A method of forming intra-aortic balloons includes forming a balloon blank having a sleeve section at its proximal end. To reduce the diameter of the sleeve section of the balloon, the sleeve section is stretched longitudinally by gripping a first portion of the balloon blank at the distal end of the sleeve section, gripping a second portion of the balloon blank at the opposite end of the sleeve section and moving at least one of the gripped portions away from the other so as to reduce the diameter of the sleeve section. A heating element is positioned within the sleeve section to relieve the stress in the sleeve after stretching, by heating the sleeve section. The sleeve section is then cooled in order to preserve the sleeve section in its reduced diameter state thereby forming an intra-aortic balloon having a balloon blank with a reduced diameter sleeve section.
摘要:
A tissue engineering composition adapted for application to an interior surface of a body lumen of a patient. The composition comprises (a) a carrier medium that is adapted to flow and to stably adhere the composition to the body lumen and (b) microcapsules, which are dispersed within the carrier medium and which contain one or more living cells encapsulated within a coating that includes a biodegradable polymer. The composition promotes growth of the cells on the lumen surface subsequent to application of the composition to the lumen.
摘要:
A tissue ablation probe comprises an elongated probe shaft, at least one fluid perfusion lumen longitudinally extending through the probe shaft, and a plurality of electrodes carried by the distal end of the probe shaft. Each of the electrodes includes a porous structure in fluid communication with the at least one perfusion lumen. The electrodes have a substantially co-extensive surface.