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Thanh, LoAn H.


Primary examiner statistics: 283 patents; average approval time: 288 days
Assistant examiner statistics: 150 patents; average approval time: 929 days

Patents as Assistant Examiner


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NumberTitleIssue Date
6648842Delivery preparation and facilitation device and preparatory gymnastics
A device for preparing a pregnant woman to delivery and facilitating the delivery itself, which comprises an entirely expandable stretch body, which is positioned in the expulsion area of the urogenital canal in such a way that it is partly inside the vag...
11/18/2003
6607511Medical device with safety flexible needle
A device is provided for inserting medical instruments, such as pacemaker leads, into a patient. The device includes a flexible needle with a sharpened tip surrounded by a sheath and catheter. A biasing element biases the needle toward a position in which...
08/19/2003
6599275Implantable medical device
An implantable medical device 10 such as a catheter with a pharmacologically active ingredient layered between outer and inner elongated member tubes 11 and 13 for minimizing the risk of infection or other physiological afflictions associated with the imp...
07/29/2003
6589264Aortic occluder with associated filter and methods of use during cardiac surgery
A balloon arterial cannula and methods for filtering blood. The devices generally include a mesh for filtering blood flowing within a blood vessel, particularly within an artery such as the aorta, a structure adapted to open and close the mesh within the ...
07/08/2003
6589164Sterility barriers for insertion of non-sterile apparatus into catheters or other medical devices
Methods, apparatus and systems wherein the distal portion of an elongate apparatus (e.g., a catheter or cannula) having a sealed lumen (e.g., a blind lumen) formed therein is insertable into the body of a mammalian patient and a tubular sterility barrier ...
07/08/2003
6589204Method of operating a liquefracture handpiece
A surgical handpiece having two coaxial tubes or channels mounted within a body. The first tube is used for aspiration and is smaller in diameter than the second tube so as to great an annular passage between the first and second tube. The annular passage...
07/08/2003
6585716Method of treating the heart
Devices and methods described for delivery of therapeutic substances to a depth within the heart muscle via the venous side of the heart, with a primary focus on delivery through the coronary sinus. The devices and methods may be combined with percutaneou...
07/01/2003
6585698Electronic medical delivery pen having a multifunction actuator
A medication delivery pen includes a housing having opposing proximal and distal ends. An actuator is disposed in the proximal end of the housing for setting and administering a dosage of medication. The pen also includes a medication-containing cartridge...
07/01/2003
6579276Ocular iontophoretic device and method for inhibiting vascular endothelial growth factor (VEGF) using the same
An ocular iontophoretic device for delivering an aptamer to an affected area of a living being's eye for inhibiting VEGF function therein, the device comprising an active electrode assembly associated with a matrix and/or reservoir, wherein the matrix and...
06/17/2003
6575956Methods and apparatus for uniform transcutaneous therapeutic ultrasound
A wide beam ultrasound delivery system providing a uniform exposure field is used to enhance the uptake of injected substances and/or to enhance the transfection of DNA in the tissues of human subject, or reduce the amount of vascular intimal hyperplasia ...
06/10/2003
6572592Medical valve and method of use
A closed system, needleless valve device includes a generally tubular body defining an internal cavity. On the proximal end of the body there is an opening which is preferably sufficiently large to receive an ANSI standard tip of a medical implement. The ...
06/03/2003
6572586Low profile infusion set
An infusion set for administration of fluid to a subcutaneous layer includes a cannula housing adapted for mounting onto a patient's skin and a needle housing for connection to the cannula housing. The needle housing has a pair of flexible sidewalls and a...
06/03/2003
6572580Set depth nail notcher with patch system and method for treating nail fungus
A kit including a patch laden with topical anti-fungal medication and a set depth nail notcher for cutting a notch of predetermined depth in a nail plate comprising a handle having a smooth flat surface, a longitudinal cutting edge protruding from the smo...
06/03/2003
6572591Needleless injection site
A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing ...
06/03/2003
6554801Directional needle injection drug delivery device and method of use
The invention relates to an apparatus and method for imaging and mapping various structures located at a target area within a patient's lumen using conventional IVUS technology. The mapped images are used to accurately determine and control the location o...
04/29/2003
6554792Suspension device and method
A device and method for providing a suspended agent such as a contrast agent without mechanical resuspension. A volume of agent is divided into sub-volumes in a network of tubes, cells, sponges, grooves, etc. A propellant fluid flows through the network t...
04/29/2003
6544210Disposable laparoscopic smoke evacuation system
A disposable laparoscopic smoke evacuation system. The system utilizes a small fan unit and filter housed in a single disposable housing adapted to be connected between two laparoscopic surgical instrument assemblies via tubing and powered by batteries or...
04/08/2003
6527754Implantable vascular access device
The present invention provides an improved vascular access port comprising a port base with a metallic dish insert molded (or bonded) into the bottom of the reservoir. In one embodiment, a single reservoir is provided. In another embodiment, plural reserv...
03/04/2003
6520929Infusion sleeve for ophthalmic surgery
Sleeve apparatus for a phacoemulsification/irrigation and aspiration handpiece includes an elongate sleeve having a proximal and a distal end with a sleeve establishing an annular passage around a needle enabling irrigation fluid to pass into the eye thro...
02/18/2003
6517514Balloon catheterization
A medical balloon is collapsed to a small profile during deflation by preventing tension in the catheter or balloon which might otherwise direct the balloon into a larger diameter collapsed profile, making it difficult to remove the catheter from the body...
02/11/2003
6519569Security infusion pump with bar code reader
A medical infusion pump with a bar code reader having simplified and enhanced security features. The infusion pump with bar code reader is comprised of an infusion pump with a housing, a control display screen and control software for operating the infusi...
02/11/2003
6508787System for actively supporting the flow of body fluids
The present invention relates to a device for actively supporting the flow of body fluids, comprising an artificial flow guide system (10) with an operational area into which a pump (1) is embedded in such a way that it can transport blood from at least o...
01/21/2003
6506182Method for subcutaneous access to the vascular system of a patient
A needle and obturator assembly for access to entrance lumens in an access device disposed subcutaneously in a body of a mammal, for transfer of fluid into and/or out of the mammal body, comprising a first needle and obturator unit for insertion through a...
01/14/2003
6506180Passive perfusion sleeve/placement catheter assembly
A passive perfusion sleeve/placement catheter assembly for performing coronary angioplasty allows prolonged dilatations without blocking blood flow. The perfusion sleeve comprise an elongated shaft with a distally mounted composite balloon including a sem...
01/14/2003
6497678Intra-aortic balloon catheter having a variable diameter inner tube
An intra-aortic balloon catheter having a variable diameter inner tube....
12/24/2002
6491664Anchoring system for a medical article
An anchoring system includes a simply-structured device which permits a portion of a catheter or similar medical article to be easily anchored to a patient, desirably without the use of tape or needles and suturing. The anchoring system desirably includes...
12/10/2002
6491668Needleless fluid transfer
A valve connector adapted to facilitate fluid access between components is formed by a housing having a through channel. An elastomeric support secured to the housing biases a valve element or plug in the channel into sealing engagement with the support. ...
12/10/2002
6490482Apparatus and method for in vivo delivery of therapeutic agents
Electroporation electrodes are laminated to a permeable membrane to form an electrode membrane. Such an electrode membrane is useful for a continuous controlled delivery of a therapeutic agent through the skin or mucosa, when placed in direct contact with...
12/03/2002
6488658Method of treating the inner lining of an organ using a bipolar electrosurgical instrument including a plurality of balloon electrodes
One embodiment of the present invention is directed to a method of heating the inner lining of a lumen or cavity of a patient. In this embodiment, the method includes the use of a bipolar electrosurgical instrument which includes a flexible elongated tube...
12/03/2002
6488669Collection cup for an automatic on-site drug testing system
A collection cup for a drug testing system includes a central volume and a trough, exterior to the central volume. The trough is configured with a pour spout such that, as fluid is poured from the cup, a controlled volume remains in the trough. The trough...
12/03/2002
6485458Surgical insertion instrument body having a distending portion
An insertion instrument body includes a longitudinal metallic core portion, a distending portion and a power supply means. The metallic core portion is inserted into a lumen such as a blood vessel. The distending portion is fixed to an outer face of the m...
11/26/2002
6482181Trocar seal system
A seal assembly is provided for reception of an elongated surgical instrument, which comprises a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a se...
11/19/2002
6475193Continuous injecting apparatus
A continuous injecting apparatus comprises an hollow housing (10) including an upper portion and a lower portion (10',10"); a syringe (1) mounted in the hollow housing (10); a connector (20) tightly threaded onto the front end portion of the housing (10);...
11/05/2002
6468250Dual-chamber safety hypodermic syringe
A dual-chamber safety hypodermic syringe. The syringe includes a barrel having a medicine chamber, a needle chamber, and a guide hole connected between the chambers. The needle assembly is moved in and out of the needle chamber between the extended positi...
10/22/2002
6464669Catheter protector
A catheter protector designed to be of assistance to patients using a Peripherally insterted central catheter. The catheter is inserted into a vein in the patients arm, usually at the elbow. The catheter has an attached tube which is usually pinched off. ...
10/15/2002
6458097Catheter for corporeal duct
The invention concerns a catheter (1) designed to be inserted in a corporeal duct and comprising a flexible elongated body, rigid in traction, including a sealed tubular sheath (3) for transmitting a fluid under pressure and capable of being subjected to ...
10/01/2002
6454746Medication delivery apparatus
A medication delivery apparatus including a housing, a container of medication mounted to the housing, an outlet such as an injection needle, and a drive assembly adapted to force medication from the container and through the outlet upon movement of an ac...
09/24/2002
6447479Blood vessel dilatation apparatus
A blood vessel dilatation apparatus includes an inner tube having a lumen; an outer tube forming a lumen between the outer tube and an outer surface of the inner tube; a dilatation member; a first opening provided at a rear end portion of the inner tube a...
09/10/2002
6440104Safety shield assembly
The present invention is a safety shield assembly having a shield and a collar for connecting the shield to a fluid handling device whereby the shield may be pivoted with respect to the collar. Preferably, the safety shield assembly may be used with a nee...
08/27/2002
6428498Suction catheter for rapidly debriding abscesses
A medical device 10 particularly adapted for debriding an abscess, phlegmon, or hematoma in a human or veterinary patient, for removing debrided and other materials from the abscess and for draining the abscess first includes a flexible catheter 12 having...
08/06/2002
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