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Louw
Deon Francois Louw, Calgary CA
| Patent application number | Description | Published |
|---|---|---|
| 20100063630 | MICROSURGICAL ROBOT SYSTEM - A robot system for use in surgical procedures has two movable arms each carried on a wheeled base with each arm having a six of degrees of freedom of movement and an end effector which can be rolled about its axis and an actuator which can slide along the axis for operating different tools adapted to be supported by the effector. Each end effector including optical force sensors for detecting forces applied to the tool by engagement with the part of the patient. A microscope is located at a position for viewing the part of the patient. The position of the tool tip can be digitized relative to fiducial markers visible in an MRI experiment. The workstation and control system has a pair of hand-controllers simultaneously manipulated by an operator to control movement of a respective one or both of the arms. The image from the microscope is displayed on a monitor in 2D and stereoscopically on a microscope viewer. A second MRI display shows an image of the part of the patient the real-time location of the tool. The robot is MRI compatible and can be configured to operate within a closed magnet bore. The arms are driven about vertical and horizontal axes by piezoelectric motors. | 03-11-2010 |
Frank Louw, Carlsbad, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090287078 | Marker or filler forming fluid - A solution for forming a marker or filler mass for an intracorporeal site. The solution contains a polar, water soluble non-aqueous solvent such as dimethyl sulfoxide and a bioabsorbable, essentially water insoluble polymer such as polylactic acid, or copolymers of lactic acid and glycolic acid. The solution may be delivered to the biopsy site by a suitable syringe and delivery tube. The delivery tube is preferably provided with a releasable radiopaque element on the distal tip which can be released within the polymeric marker mass formed in the biopsy cavity. | 11-19-2009 |
| 20100010342 | Tissue site markers for in vivo imaging - The invention is directed biopsy site markers and methods of marking a biopsy site, so that the location of the biopsy cavity is readily visible by conventional imaging methods, particularly by ultrasonic imaging. The biopsy site markers of the invention have high ultrasound reflectivity, presenting a substantial acoustic signature from a small marker, so as to avoid obscuring diagnostic tissue features in subsequent imaging studies, and can be readily distinguished from biological features. The several disclosed embodiments of the biopsy site marker of the invention have a high contrast of acoustic impedance as placed in a tissue site, so as to efficiently reflect and scatter ultrasonic energy, and preferably include gas-filled internal pores. The markers may have a non-uniform surface contour to enhance the acoustic signature. The markers have a characteristic form which is recognizably artificial during medical imaging. The biopsy site marker may be accurately fixed to the biopsy site so as to resist migration from the biopsy cavity when a placement instrument is withdrawn, and when the marked tissue is subsequently moved or manipulated. | 01-14-2010 |
| 20110092815 | MARKER OR FILLER FORMING FLUID - A system for at least partially filling and marking a cavity at a site within a patient's body includes a marker delivery device having a chamber configured to contain a marking substance and having a mechanism configured to expel the marking substance. A quantity of the marking substance is contained within the chamber of the marker delivery device. The marking substance is configured to at least partially fill the cavity and form therein a porous bioabsorbable body. A delivery tube is coupled in fluid communication with the chamber of the marker delivery device. The delivery tube has a distal end with a discharge port through which the marking substance is expelled. A releasable remotely detectable distal tip is coupled to the distal end of the delivery tube and is configured to be released to remain within the porous bioabsorbable body within the cavity upon the formation thereof. | 04-21-2011 |
Frank R. Louw, Carisbad, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100048979 | Soft body catheter with low friction lumen - The disclosure is directed to radiation catheter devices, methods for controlled application of irradiation to tissue at a body site, such as a cavity formed after removal of tissue, e.g. cancer, using such radiation catheter devices, solutions for forming a more lubricious luminal surface and method for lining lumens of such devices to improve the frictional characteristics thereof. The catheter device includes a flexible elongated shaft which is formed of low durometer polymeric material, which can be readily folded or coiled for securing the shaft to or under the skin of the patient and a radiation lumen lined with high durometer polymeric material to improve the frictional characteristics. The elongated shaft has at least one inner lumen for receiving a radiation source which has a layer of high durometer polymeric material that provides lower surface friction to facilitate advancement of a radiation source therein. | 02-25-2010 |
Gert Hercules Louw, New York, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090319365 | System and method for assessing marketing data - The present invention includes a system and method for managing media received from a plurality of media sources. Media content is received from a media source over a communication network. The media content is formatted in a first format and comprises news and advertising material relating to a respective subject. The received media content is processed into processed content, wherein the processing includes filtering, annotating and standardizing the content. Moreover, processed content is rendered, wherein the rendering includes transforming the processed content from the first format into a second format. The processed content formatted in the second format is stored in an electronic storage repository, and, in response to a search for the processed content, the processed content is retrieved from the electronic storage repository. Further, the processed content is further transformed from the second format to a third format, and delivered in the third format to a user. | 12-24-2009 |
Henry John Louw, Bergvliet ZA
| Patent application number | Description | Published |
|---|---|---|
| 20110057001 | LIGHTWEIGHT SUSTAINABLE HANGER - A lightweight and sustainable hanger provides for minimum weight and material usage. | 03-10-2011 |
Ian Louw, Pretoria ZA
| Patent application number | Description | Published |
|---|---|---|
| 20110091500 | Inactivated Live-Attenuated Bluetongue Virus Vaccine - The invention describes the preparation of an inactivated bluetongue virus (BTV) composition, and in particular a vaccine, using an attenuated live BTV vaccine strain as masterseed. The vaccine can be administered to an animal to prevent bluetongue disease by eliciting an immune response against the bluetongue virus serotype(s) included in the composition. | 04-21-2011 |
Johan Louw, Tygerberg ZA
| Patent application number | Description | Published |
|---|---|---|
| 20110045108 | ANTI-DIABETIC EXTRACT OF HONEYBUSH - Novel and useful compositions derived from honeybush plant extract for treating diabetes are provided. It has been found that the plant extract of the present invention exhibit a superior antidiabetic effect when administered in an amount from about 1 milligram to about 5 milligrams, preferably to about 2.5 milligrams, per kilogram body weight. | 02-24-2011 |
Maureen Elizabeth Louw, Pretoria ZA
| Patent application number | Description | Published |
|---|---|---|
| 20100285532 | PRODUCTION OF HETEROLOGOUS PROTEINS OR PEPTIDES - A method of producing a flagellin-based chimeric protein includes culturing a | 11-11-2010 |
Wynand Jacobus Louw, Pretoria ZA
| Patent application number | Description | Published |
|---|---|---|
| 20110233139 | Treatment of Water - A process for treating impure water includes adding magnesium hydroxide and/or ammonium hydroxide to the water. This neutralizes the impure water and reacts with dissolved metals in the water. The metals are precipitated as metal hydroxides/oxides, which are removed from the water. Thereafter barium hydroxide is added to the water. The barium hydroxide reacts with dissolved sulphates to produce barium sulphate and, when magnesium hydroxide is used, with dissolved magnesium, to produce magnesium hydroxide. Barium sulphate and, when present, magnesium hydroxide are removed from the water. When ammonium hydroxide is used, ammonia is stripped from the water. Carbon dioxide is then added to the water. The carbon dioxide reacts with dissolved calcium in the water. The calcium is precipitated as calcium carbonate, which is removed from the water. | 09-29-2011 |