The Chinese University of Hong Kong

The University of Hong Kong

Ngspiragold Enterprises Company Limited

Tze Chuen Ng

Erik Yee Mun George Fung

Philip Wai Yan Chiu

To Wai Li

Lijian Jin

Hok Kai Samuel Choi

A tricuspid valve apparatus may include a frame and an associated neo-prosthetic valve. The frame acts as a stabilizing structure that extends cephalad into the morphologic or functional right atrium (upstream) and caudally into the morphologic or functional right ventricle (downstream). The frame comprises a strutted atrial dome that conforms to the atrium without obstruction of blood flow from the incoming great veins (i.e. superior vena cava and inferior vena cava) or other anomalous veins and/or tributaries. The frame further comprises ventricular struts to be placed within the right ventricle to secure the neo-prosthetic valve in a desired position. The assembly of the frame and valve is collapsible so that prior to deployment the assembly is placed in a vascular catheter, and then self-expands upon release in the heart.

Transcatheter self-expandable tricuspid valve replacement system

One example embodiment is a waste collection and storage device, comprising: (a) a disposable container with a body and a base; (b) a plurality of panels extended from the base, each of the panels has a panel distal end extending away from the body, the panel distal ends of the panels pointing inwardly and defining an opening therebetween in an open state; and (c) at least one locking mechanism disposed on at least one of the panels. When a force is applied on the body to the panel distal ends against a target surface having a waste, the panel distal ends move inwards towards each other and in turn close up the opening to form a closed state, and the body and the panels together create a cavity, such that the waste can be scooped up from the target surface and accommodated within the cavity. The locking mechanism locks the panels in the closed state to store the waste within the cavity. Other example embodiments are described herein. In certain embodiments, the waste collection and storage device is simple in structure and cost-efficient in manufacturing.

Systems and devices for waste collection and storage

A toothbrush includes a head with a new design and a handle that operates to move the head. The toothbrush head has multiple types of purpose-designed bristle-bundles precisely mapped to target specifically all dental-gingival surfaces and anatomically niches, including various dead-corner niches/surfaces that are usually not accessible by currently existing toothbrushes. Each cluster of bristle-bundles contains bristles of different sizes, diameters, hardness, lengths, angulations and colors. The head is designed to be inclined to accommodate both lingual and palatal surfaces. This toothbrush head also functions uniquely by coupling over dental arches and rotating so that the brush does not need to be lifted during movement from one end to the other. Further, moving the handle with respect to the brush head causes the width of the brush head to change to accommodate the different widths of the teeth along the dental arch.

Toothbrush

Growing community of inventors

Hong Kong, China

Tze Chuen Ng