Abstract:
A method for performing an in-vivo calibration of a blood pressure sensor 40 that is associated with an in-vivo balloon system. The method involves monitoring a patient's blood pressure by observing the system gas pressure while at the same time monitoring the patient's blood pressure through the sensor. The blood pressure measurements obtained by monitoring the system gas pressure are used as reference, or "true, " blood pressure measurements, and an "offset" is determined between the reference blood pressure measurements and the blood pressure measurements obtained through the sensor. The offset can be stored in a memory 42, which may also store sensor sensitivity data. The offset and/or sensitivity data may be used to adjust future measurements obtained from the sensor, thereby generating calibrated sensor measurements.
Abstract:
A method for synthesis of nucleic acids, with particular use for synthesis of cDNA. The method allows application of the cDNA to a microarray without the need for concentration or purification of the cDNA post-cDNA synthesis.
Abstract:
A method of constructing a highly labeled linear polymeric molecule for use in any desired application, and linear polymeric molecules of such structure. The polymeric molecule is a nucleic acid constructed from a large number of one or more types of monomeric oligonucleotide units that are attached together to form an extended strand. Within each polymer, at least one type of monomeric unit is provided which is bound to or designed to bind to a label moiety, providing a polymer with a large number of repeat sequences designed for labeling purposes, resulting in extremely effective signal carrying molecule of considerable versatility.
Abstract:
An improved microfluidic device for the detection and analysis of desired chemical or biochemical components. The device allows molecular biological analysis and diagnosis using multistep reactions conducted on a small scale, with such reactions being conducted on or preferably within an electronic chip (12) containing biochemical components that enable the detection of desired materials in an applied sample. Preferably, the device includes a sample chamber (26) for lysis of sample cells using an applied AC field, a signal delivery chamber (46) wherein signal delivery molecules are bound to desired target molecules of interest, and/or electrodes (90) for detecting signal produced by the signal delivery molecules.
Abstract:
A mounting device (10) for securing transport patient connected equipment, specifically an intra-aortic balloon pump (IABP) (22), in the typically crowded medical transport vehicle. An engagement stud (20) on the IABP (22) slides into a spring-loaded latch (40) connected to a vehicle mounted base (11). The engagement stud configuration allows the user to engage the IABP (22) from any desired direction, i.e. slide the pump (22) from any of the four sides onto the mount (11). No effort is required from the user beyond the pushing motion for locking the IABP (22) onto the mount (11).
Abstract:
A balloon catheter (10) having a microamanometer (22) connected to the catheter (10) and also a fluid-filled transducer system for adjusting micromanometer pressure measurements.
Abstract:
A vacuum reservoir, for use with an intra-aortic balloon pump or orther system (1),containing a muffling means (40) having a honeycom-like cell structure or other flow straightening structure.
Abstract:
An improved intra-aortic balloon catheter system comprising an insertion sheath (20), having an expandable distal end (70), and a tapered balloon membrane (40) capable of being removed through said insertion sheath (20) upon completion of therapy. The outer diameter of the balloon membrane (40) in a wrapped state is smaller than the outer diameter of the outer tube (30).
Abstract:
A protective sleeve (20) for a catheter (10) having a distal end capable of (i) being disposed within and engaging a majority of existing hemostatic valves; and (ii) capable of being partially inserted into a patient (16), thus, securing the sleeve (20) to the patient in a sheathless catheter insertion procedure.
Abstract:
Methods are provided for assay and detection on a microarray. The method of the present invention comprises incubating a mixture including: i) a first component comprising a cDNA reagent obtained from mRNA of a target sample, the cDNA having a capture sequence, and ii) a second component comprising a dendrimer having at least one first arm containing a label capable of emitting a detectable signal and at least one second arm having a second nucleotide sequence complementary to the capture sequence, at a first temperature and for a time sufficient to induce the first component to bind to the second component and form a prehybridized cDNA-dendrimer complex; contacting a microarray having thereon a plurality of features each containing a particular first nucleotide sequence with the mixture; and incubating the microarray and the prehybridized cDNA-dendrimer complex at a second temperature and for a time sufficient to induce prehybridized cDNA-dendrimer complex to bind to the first nucleotide sequence, wherein such binding results in the feature emitting the detectable signal whereby a hybridization pattern is generated on the microarray.