摘要:
In a first aspect, the present invention relates to a process improvement additive suitable for polymer processing, wherein this process improvement additive comprises a carrier polymer, a binding component and one or more fluoropolymers and wherein this process improvement additive further comprises one or more zeolites. In a second aspect, the present invention relates to a method for processing a polymer, wherein a process improvement additive is added to the polymer prior to processing and wherein this process improvement additive comprises a carrier polymer, a binding component, one or more fluoropolymers and one or more zeolites.
摘要:
Reinforcing sleeves for medical device lumens are disclosed. In some embodiments reinforcing sleeves may provide resistance to crushing, kinking, or other deformation of the lumen. Reinforcing sleeves within the scope of this disclosure may be displacable along an outer diameter of a reinforced lumen. Some reinforcing sleeves within the scope of this disclosure comprise metal alloys.
摘要:
The present disclosure describes a system and a method for producing patient-specific small diameter vascular grafts (SDVG) for coronary artery bypass graft (CABG) surgery. In some embodiments, the method for producing SDVGs includes non-invasive quantification of patient-specific coronary and vascular physiology by applying computational fluid dynamics (CFD), rapid prototyping, and in vitro techniques to medical images and coupling the quantified patient-specific coronary and vascular physiology from the CFD to computational fluid- structure interactions and SDVG structural factors to design a patient-specific SDVG.
摘要:
본 발명은 열경화성 수지 조성물, 이를 이용한 프리프레그, 적층 시트 및 인쇄회로기판에 관한 것으로, 상기 열경화성 수지 조성물은 (a) 분자쇄의 양 말단에, 비닐기 및 알릴기로 이루어진 군에서 선택된 불포화 치환기를 2개 이상 갖는 폴리페닐렌 에테르, 또는 이의 올리고머; 및 (b) 불소 기반의 폴리테트라플루오로에틸렌 필러를 포함한다.
摘要:
A presente invenção refere-se à bronzina com cobertura polimérica para redução de atrito em motores de combustão interna. Adicionalmente, a presente invenção refere-se ao processo para a produção de bronzina com cobertura polimérica para redução de atrito em motores de combustão interna, particularmente pela introdução de uma camada de adesão entre a superfície metálica da bronzina e o revestimento polimérico, sendo a referida camada obtida a partir da imersão prévia da bronzina cm solução liidro-alcoólica de organo-silanos e posterior cura térmica, resultando na formação de um filme de polissiloxano contendo grupos químicos com capacidade de interações diversas com o revestimento polimérico subsequente.
摘要:
Delivery systems (100) for active agent coated balloons and related methods. A delivery system can include a tunneling sheath (104) and a balloon catheter (106). The tunneling sheath can include a tubular shaft (602) having an outer diameter and defining a lumen. The tunneling sheath can include a proximal collar (105) defining a lumen. The balloon catheter can include a balloon catheter shaft disposed within the tubular shaft. The balloon catheter shaft can include a lumen for the passage of a fluid therein. The balloon catheter can include an expandable balloon (108) disposed on the balloon catheter shaft. The balloon catheter shaft can include an active agent layer disposed on the expandable balloon. The position of the expandable balloon can be configured to be stationary relative to the tubular shaft as the delivery system is passed through a blood vessel of a patient.
摘要:
Provided are method of producing a shaped fluoroelastomer articles. The methods include subjecting a composition comprising a fluoroelastomer to additive processing in an additive processing device. Also provided are articles obtained with the methods and 3D-printable compositions.
摘要:
The invention provides a method of making a medical device. The method comprises contacting a portion of a tool corresponding to a subject's body part with a layer of polymeric material configured to retain the shape of the tool in the absence of a vacuum. The method further comprises contacting at least a portion of the layer of polymeric material with a curable material, and then curing the curable material so that it becomes rigid to thereby create a medical device.