A process, apparatus and a catheter and a flexi needle for medical applications formed by the process of selecting a tubular flexible member and a metal/ceramic cap member to be securely joined to the tubular member, placing the cap member in engaging relation with a holding member of a material joining device, securing the tubular member on a positioning member of the material joining device, positioning a distal end of the tubular member in engaging relation with an end of the cap member positioned in the holding member, and rotating the holding member and maintaining the tubular member in frictionally engaging relation with the cap member to melt or soften a predetermined portion of the distal end of the tubular member engaged with the cap member to integrally join a predetermined portion of the distal end of the tubular member within the cap member forming a joined composite member.

A protective textile sleeve having enhanced end fray resistance and being adapted to be bonded to an elongate member extending therethrough, and method of construction thereof, are provided. The sleeve has a wall with a cavity bounded by an innermost surface extending between opposite open ends. A first material, including a hot melt adhesive material, facilitating bonding the wall to an outer surface of an elongate member extending therethrough, is bonded to the wall immediately adjacent the opposite ends, and a second material, facilitating prevention of end fray of the wall ends, including an elastomeric material is bonded to the wall immediately adjacent the opposite ends.

An intravenous delivery system may have a liquid source containing a liquid, tubing, and an anti-run-dry membrane positioned such that the liquid, flowing form the liquid source to the tubing, passes through the anti-run-dry membrane. The anti-run-dry membrane may be positioned within an exterior wall of a drip unit, and may be secured to a seat of the exterior wall by an attachment component. The attachment component may have various forms, such as a secondary exterior wall that cooperates with the exterior wall to define a drip chamber, a washer positioned such that the anti-run-dry membrane is between the washer and the seat, and an adhesive ring formed of a pressure sensitive adhesive and secured to the anti-run-dry membrane and the seat via compression. Interference features may protrude inward from the exterior wall or outward from the anti-run-dry membrane to help keep the anti-run-dry membrane in place.

A method includes a coating step of coating a vulcanizing adhesive at a surface of a vulcanized centrum of a rubber bush; a heating step of heating a portion to be adhered of a stabilizer bar; a fitting step of fitting the centrum of the rubber bush at which the vulcanizing adhesive is coated on the heated portion to be adhered of the stabilizer bar; and an adhering step of clamping the rubber bush in a radial direction by a clamping device to adhere the rubber bush on the portion to be adhered of the stabilizer bar.

A method is provided of bonding a first component to a second component. The method includes: locating the first component against the second component to form an interface between the components, a curable adhesive being provided at the interface; locating a pressurizable, fluid-filled bladder against the first component such that the first component is sandwiched between the second component and the bladder; locating a backing member against the bladder such that the bladder is sandwiched between the backing member and the first component; pressurizing the bladder such that a consolidating pressure is exerted by the bladder on the first component to conform the first component to the second component; and curing the adhesive while the first component is conformed to the second component by the consolidating pressure.

A catheter includes a balloon and a shaft having a coaxial portion including an outer tubular member having a bore, a transition neck, an access fitting adjacent the proximate end of the catheter shaft for directing a guidewire into the catheter shaft, an inflation port, a guidewire tubular member disposed coaxially in the outer tubular member, the outer tubular member and guidewire tubular member defining a first, annular inflation/deflation lumen fluid communication with the inflation port, at least one second inflation/deflation lumen separate from and non-coaxial with the guidewire tubular member and having a cross-sectional area less than the cross-sectional area of the first inflation/deflation lumen and opening at a proximate end into the first inflation/deflation lumen and at the distal end of the transition neck.

The present invention relates to a method and to a device for assembling together two tubes (1, 2) comprising a tubular junction sleeve and an internal pipe liner tube made of thermoplastic materials by laser welding two contact surfaces of revolution (1-1, 2-1) pressed one against the other at the ends of the tubular sleeve of said liner tube overlapping coaxially.

A joined body includes: a first member having a hole; and a second member that is press-fitted to the hole. The second member has a second abutment surface abutting against a first abutment surface which is an inner wall of the first member forming the hole. A groove portion is defined on one of an inner wall of the first member and an outer wall of the second member, and has a groove formed to extend in a press-fitting direction of the second member to the first member. An insertion portion is formed to protrude in a radial direction from the other of the inner wall of the first member and the outer wall of the second member, and is inserted in the groove. The groove portion has an engagement portion that is able to be engaged with an end portion of the insertion portion in the press-fitting direction.

A bonding method bonds a buffer member to an adherend member, and includes: an adhesive application step of applying an adhesive to a part of the buffer member, the part being bonded to the adherend member; a first heating step of heating a part of the adherend member, the part being bonded to the buffer member; a second heating step of heating the part of the adherend member after the first heating step; and an attachment step of attaching the buffer member to the adherend member after the second heating step.

An object of the present invention is to provide a method of joining resin tubes, in which the degree of freedom of selecting a tube material is large, and further a defect such as stiffness and contraction at joining portions of the tubes is not developed. The method of joining resin tubes according to the present invention is a method of joining resin tubes so that a first tube is joined to a second tube, the first tube and the second tube each being made of synthetic resin, the method comprising: a surface activation step of activating each of a joining region of the first tube and a joining region of the second tube; and an adhesion step of adhering the joining region of the first tube obtained via the surface activation step with the joining region of the second tube obtained via the surface activation step to each other.