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Steven Sounyoung Yu

Sounil Yu

An autonomous unmanned road vehicle and how it can be used to make deliveries. The unmanned vehicle is capable of operating autonomously on paved roadways. The vehicle has a control system for autonomous driving and a perception system for detecting objects in its surroundings. The vehicle also has one or more cargo compartments for carrying the delivery items. The vehicle may have a flashing light beacon to increase the conspicuousness of the vehicle. In consideration that the vehicle does not carry passengers, the size and/or motor power of the vehicle may be reduced as compared to conventional passenger vehicles.

Autonomous unmanned road vehicle for making deliveries

A head-worn image display apparatus that comprises a non-immersive image display assembly that receives images from a stereoscopic video camera module. The image display assembly comprises a miniature display component for generating the images for display. The image display assembly may work by an optical relay system. The head-worn image display apparatus could be used in a variety of different settings. One particular application is for performing medical procedures such as microsurgery. The stereoscopic video camera module may have optical magnification capability (e.g. such as in a surgical microscope) to provide a magnified view of the surgical field.

Head-worn image display apparatus for stereoscopic microsurgery

Biliary diversion catheters for diverting bile fluid from a part of the patient's biliary tree to the patient's distal small intestine. The catheter comprises a system of interconnected or interconnectable tubes: a biliary tube segment, an intestinal (e.g. ileal or jejunal) tube segment, and a flush tube segment. The biliary diversion catheter is designed such that bile fluid flows into the biliary tube segment and is shunted into the distal small intestine via the intestinal tube segment. The flush tube segment is used to infuse flush fluid into the catheter (e.g. to clear out any debris within the tube system of the catheter). The biliary tube segment and the intestinal tube segment may together form a drainage tube or an anastomotic component. The flush tube segment and the intestinal tube segment may together form a transabdominal tube.

Biliary diversion catheter

Electrical neurostimulation leads for use in craniofacial peripheral nerve neurostimulation (e.g. occipital neurostimulation). Paddle leads, lead wires, lead wire anchors, tools, or other hardware can be designed for implantation in the craniofacial region. This can address problems of electrical neurostimulation in the craniofacial region such as lead migration, hardware breakage, patient discomfort, or other problems.

Craniofacial neurostimulation for treatment of pain conditions

Fan grill

An oscillating fan with built-in pull-type control switch includes a housing defining a receiving space having a front open end; a driving motor mounted to the front open end of the receiving space and having a first rotary shaft; a blade assembly mounted to the first rotary shaft; at least one pull switch having a selector mounted in the housing and an actuator extended through and located outside the housing; and a control box provided in the receiving space to electrically connect to the driving motor and every pull switch. The actuator includes a pull string having an end connected to the selector and another end hung from the housing by a predetermined length, allowing a user to control the oscillation of the fan via the pull string. Since most fan components are integrated in the housing, the fan occupies only reduced space and is more practical for use.

Oscillating fan with built-in pull-type control switch

A fan with concealed oscillating mechanism includes a main housing, a first driving motor, a second driving motor and a curved link gear all located inside the main housing, and a set of blades located outside the main housing and connected to a rotating shaft of the first driving motor. The first driving motor has a connecting rod rotatably received in a receiving tube provided in the main housing. The second driving motor is located behind and connected to the first driving motor, and has a rotating shaft being perpendicular to that of the first driving motor. The curved link gear is connected at an end to the second rotating shaft and at another end to the main housing, such that when the second driving motor operates, the first driving motor is brought to oscillate while the set of blades stably rotates to thereby change the direction of produced airflow.

Fan with concealed oscillating mechanism

A fan with concealed 360-degree oscillating mechanism includes a main housing; a pivot member vertically, pivotally and turnably mounted in the housing; a first driving motor having a forward first rotary shaft and horizontally, pivotally and turnably mounted in the pivot member; an oscillating mechanism assembled between the first driving motor and a rear end face of the main housing, and having a first end driving an opposing second end to rotate eccentrically; and a set of blades fixedly connected to the first rotary shaft to locate in front of the main housing. With the first driving motor pivotally connected to the pivot member and eccentrically connected to the oscillating mechanism, the set of blades can be oscillated 360 degrees while being rotated by the first driving motor; and parts inside the main housing undertake force evenly to enable stable operation of the fan and reduced stress fatigue of the oscillating mechanism.

Growing community of inventors

Fairfax Station, VA, United States of America

Steven Sounyoung Yu