Nellcor Incorporated

Vascular Pathways, Inc.

Alza Corporation

Nellcor Puritan Bennett Incorporated

Endo-therapeutics, Inc.

Jessica A Warring

Paul David Mannheimer

David B Swedlow

Amir Belson

Mitchell Elliott Levinson

David E Goodman

Phillip S Palmer

Steven L Nierlich

Winfield S Fisher

Winfield Scott Fisher

Su Il Yum

Adnan I Merchant

Robert L Clark, Iii

Lina T Taskovich

Deborah A Briggs

Russell DeLonzor

Michael J Cormier

Albert Ollerdessen

A catheter insertion device includes a housing, a needle, a guide wire, and a catheter disposed coaxially over the needle. The needle has a proximal end in the housing and a distal end extending from a distal end of the housing in an insertion position. The guide wire has a distal portion disposed in a lumen of the needle in a withdrawn position. The guide wire may include a safety tip having a non-coiled configuration in the withdrawn position and a coiled configuration in an advanced position. The catheter insertion device may include a sliding member attached to the guide wire, wherein movement of the sliding member translates the guide wire from the withdrawn position to the advanced position.

Intravenous catheter insertion device and method of use

A catheter insertion device with a housing and an interior space. An access needle and a guide wire supported by and moveable relative to the access needle. A restraining element attached to a handle to limit the motion of the guide wire relative to the access needle. A catheter insertion device with a housing and an interior space. An access needle and a guide wire channel attached to the access needle. A guide wire supported by the guide wire channel. A handle attached to the guide wire to move the guide wire relative to the guide wire support channel. A method of introducing a catheter into a vessel by inserting a guide wire substantially contained within a housing into a vessel. Next, advance a catheter over the guide wire and into the vessel. Next, withdraw the guide wire out of the vessel and completely into the housing.

An improved fetal pulse oximeter sensor. The friction provided on the sensor head surface to engage the fetus is higher than the friction on the back side of the sensor head. Thus, any contact with a maternal surface by the back side of the sensor head is less likely to dislodge the sensor, since the maternal tissues will slide over the sensor head. The portion of the sensor surface in contact with the fetus' head will not move because of the increased friction. The increased friction can be achieved by using two different materials with different coefficients of friction, or by using a smooth surface on the back of the sensor head, and a rough surface on the sensor face.

Pulse oximeter sensor with differential slip coefficient

A presenting part fetal pulse oximeter sensor which does not penetrate the fetus' skin, and does not rely on a vacuum for attachment is provided. The fetal sensor of the present invention is held in place by pressure applied to the fetus by a number of different mechanisms. In one embodiment, the sensor is held in place against the fetus by a rigid rod, with the pressure being applied by the physician or technician's hand on the rod. This type of a sensor is useful for spot-checking, where continuous monitoring is not needed. In another embodiment, a pre-loaded spring is coupled between the rod and the sensor head to prevent too much pressure being applied by the user.

Pressure-attached presenting part fetal pulse oximetry sensor

The present invention is directed to a sensor system for use with a blood characteristic measurement device such as a pulse oximeter, on areas of the body having low normal cutaneous blood flow and for monitoring a blood characteristic such as oxygen saturation and pulse rate of patients, preferably over an extended period of time. The sensor system includes (a) a transdermal device containing a blood perfusion-enhancing agent that is administered in a controlled amount to the skin of a human patient and (b) a skin surface sensor.

Methods and devices for facilitated non-invasive oxygen monitoring

A method and apparatus for a simple pulse oximeter measurement of an area of the body with a small amount of blood vessels by using a counterirritant to profuse the blood and then apply a modern oximeter probe is disclosed. The counterirritant is either applied to the skin immediately before attaching the probe, or, preferably, is contained in an adhesive pad which couples the probe to the skin.

Oximeter sensor with perfusion enhancing

An apparatus for detecting movement in patients coupled to pulse oximeters and a method for using the signal generated by the apparatus to filter out the effects of motion from the test results generated by the pulse oximeter are disclosed. In a preferred embodiment, a piezoelectric film located in close proximity to the pulse oximeter's sensor provides a voltage signal whenever movement occurs near the sensor. This voltage signal is processed and the resulting signal is used to correct the oximeter's measurements. In addition to piezoelectric film, accelerometers and strain gauges are also usable to provide a signal indicative of motion.

Apparatus for the detection of motion transients

A pulse oximeter sensor that is designed to surround an appendage of the patient, such as a finger, toe or foot is disclosed. The sensor has a reusable member which preferably includes a photodetector. A disposable, flexible member preferably contains the photoemitter and can be wrapped around the patient's appendage to secure it to the appendage and the reusable member. When secured, the photoemitter and photodetector end up on opposite sides of the appendage. The disposable member connects to the reusable member to establish electrical contact. The reusable member is connected to a cable which can be plugged into a sensor monitoring system.

Adhesive pulse oximeter sensor with reusable portion

An apparatus for use in measuring fetal blood flow characteristics. The apparatus includes a non-invasive pulse oximetry probe that is inserted into the uterus between the fetus and the uterine wall. The probe is deformable and is positively attached to the fetal tissue surface using a vacuum pump which causes the probe to deform from a pre-set curvature to the curvature of the fetal tissue surface and to form a gasket-type seal with the fetal tissue surface. The probe is manually inserted into the uterus using a curved insertion tool, and is shaped to fit through a slightly dilated cervix. In a preferred embodiment, the probe includes fetal and maternal ECG sensors and additional sensing devices, and is provided with apparatus for improving the efficiency of the pulse oximetry optics.

Perinatal pulse oximetry sensor

A single-use Veress-type pneumoneedle that has a flanged handle and a fixed valve subassembly that permit the pneumoneedle to be gripped like a syringe when it is being inserted. The stylet body is either a solid rod or a hollow tube. Insufflating gas is carried into the abdominal cavity through the lumen of the needle when the stylet is a solid rod or through the stylet lumen when the stylet is a hollow tube.

Growing community of inventors

Millbrae, CA, United States of America

Jessica A Warring