2201 results about "Co extrusion" patented technology

Medical electrical leads for sensing or electrical stimulation of body organs or tissues, particularly implantable cardiac leads for delivering pacing pulses and cardioversion / defibrillation shocks, and / or sensing the cardiac electrogram (EGM) or other physiologic data and their methods of fabrication are disclosed. A lead body sheath is co-extruded in a co-extrusion process using bio-compatible, electrically insulating, materials of differing durometers in differing axial sections thereof, resulting in a unitary lead body sheath having differing stiffness sections including axial segments or webs or lumen encircling rings or other structures in its cross-section. The lead body sheath is co-extruded to have an outer surface adapted to be exposed to the environment or to be enclosed within an outer sheath and to have a plurality of lead conductor lumens for receiving and enclosing a like plurality of lead conductors of the same or differing types. The lead body sheath can be co-extruded of a plurality of sheath segments containing a lead conductor lumen and formed of a first durometer material or of differing durometer materials. A web of a further durometer material can be co-extruded extending between the adjoining boundaries of the axial sheath segments and bonding the adjacent segments together. The lead body sheath can be tailored to exhibit differing bending stiffnesses away from the lead body sheath axis in selected polar directions around the 360° circumference of the sheath body.

A co-extrusion head for forming high-aspect ratio gridline structures in a micro extrusion apparatus includes multiple sheets (e.g., metal plates) that are machined and assembled to define three-part fluidic channels having associated outlet orifice disposed along an edge surface of the head. Reference surfaces are also etched in the sheets and are aligned in a straight line that intersects output junctions of the three-channel cavities. After assembly (e.g., using high pressure bonding techniques), each reference surface is located inside a notch defined in the edge surface. The edge surface of the co-extrusion head is then trimmed (e.g., machined by wire EDM) using the reference surfaces as a precise guide, thereby producing uniform length outlet orifices with uniform flow impedance.

The invention belongs to the technical field of a solid-state lithium battery, and particularly discloses a hybrid solid-liquid electrolyte lithium storage battery. The lithium storage battery comprises a positive electrode plate, a negative electrode plate and a composite solid-state electrolyte piece, wherein the composite solid-state electrolyte piece is arranged between the positive electrodeplate and the negative electrode plate and comprises a solid-state electrolyte core layer and buffer glue layers, the buffer glue layers are arranged at two sides of the solid-state electrolyte core layer, the solid-state electrolyte core layer is formed by mainly mixing core layer inorganic solid-state electrolyte, an electrolyte polymer and an electrolyte additive, and each buffer glue layer isformed by mainly mixing a buffer glue layer inorganic solid-state electrolyte, a buffer glue layer lithium salt and a buffer glue layer additive. During fabrication of the lithium storage battery, a co-extrusion technology and a rolling technology are combined, primary processing and formation are achieved, the lithium storage battery has the characteristics of high production efficiency and is simple and convenient to operate, and the fabricated lithium storage battery has relatively high electric cycle property and safety.