摘要:
This invention provides a method of detecting polymorphisms, e.g., single nucleotide polymorphisms (SNPs), by amplification and error correction. The invention encompasses methods of performing amplification and error correction using an improved generation of nucleic acid polymerases, and methods of multiplexing the assay. The improvement to the polymerases is the joining of a sequence-non-specific nucleic-acid-binding domain to the enzyme in a manner that enhances the ability of the enzyme to bind and catalytically modify the nucleic acid.
摘要:
This invention provides a method of detecting polymorphisms, e.g., single nucleotide polymorphisms (SNPs), by amplification and error correction. The invention encompasses methods of performing amplification and error correction using an improved generation of nucleic acid polymerases, and methods of multiplexing the assay. The improvement to the polymerases is the joining of a sequence-non-specific nucleic-acid-binding domain to the enzyme in a manner that enhances the ability of the enzyme to bind and catalytically modify the nucleic acid.
摘要:
The current invention provides a method of performing DNA polymorphism assays. The assay combines allele-specific PCR with technology used for quantitative PCR. The method can be used to score the presence of absence of particular polymorphisms in a DNA sample. In a further aspect of the invention, the method is used to score the presence or absence of particular haplotypes in a DNA sample.
摘要:
A system and method for reducing the number of false negatives with minimal impact on false positive search results while allowing searches to return phonetic equivalents, misspellings, common short names, and other such applicable information. New, N-Gram based indexing and search systems and methods facilitate searching of data containing non-Arabic letters, such as numbers, symbols, and foreign language characters. Ability to customize indexing and other features further enhance search results. Linguistic pattern matching search results are improved based on dynamically modified search attributes.
摘要:
A system for modifying a heart valve annulus includes a helically helical anchored annuloplasty device delivered to the annulus via an elongated delivery member. The helical anchors of the devices disclosed herein are rotated into the valve annulus along an anchor guide by using a driver that is movably disposed in the delivery member. A tether is disposed within an inner channel of the helical anchor and a locking device is used to secure the annuloplasty device after the valve annulus has been modified. The annuloplasty device can be delivered to the annulus using, traditional surgical approach or a minimally invasive or catheter based methods.
摘要:
A method for modifying a heart valve annulus includes placing a purse string suture at a puncture site adjacent a heart valve, inserting at least one delivery member through the puncture site, positioning a distal end of the at least one delivery member adjacent a portion of a valve annulus, deploying an annuloplasty device carried within the at least one delivery member and implanting the annuloplasty device into the valve annulus. The method also includes reshaping the heart valve annulus after implantation of the at least one annuloplasty device.
摘要:
Devices and methods are provided for more efficiently performing electrophoresis and electroblotting. A sandwich structure includes an electrophoresis gel affixed to a blotting membrane. A gel casting and/or running frame is used to hold the sandwich. A method and composition that allows separation of the gel and membrane after performing a combined electrophoresis and electroblotting operation so as to allow further operations to be performed individually upon the membrane, gel or both. A uniform electrophoretic field may be created by surrounding the sandwich structure using an insulating fluid; the insulating fluid is then swapped for a conducting fluid to allow application of an electroblotting field. An apparatus automatically manages fluid exchange and actuation of electrophoresis and electroblotting electrodes. A plurality of parallel cavities may be used to hold multiple gels or gel membrane sandwiches.
摘要:
A method for modifying a heart valve annulus includes placing a purse string suture at a puncture site adjacent a heart valve, inserting at least one delivery member through the puncture site, positioning a distal end of the at least one delivery member adjacent a portion of a valve annulus, deploying an annuloplasty device carried within the at least one delivery member and implanting the annuloplasty device into the valve annulus. The method also includes reshaping the heart valve annulus after implantation of the at least one annuloplasty device.
摘要:
A system for treating mitral valve regurgitation comprises tensioning device that can be deployed using a delivery catheter. The device includes tension member linking a proximal anchor and distal anchor. The device is constructed from a material having suitable elastic properties such that the device applies a constant tension force between the anchors, while stretching or flexing in response to a heartbeat when positioned across a chamber of a heart. The anchors may include a plurality of arms. In some embodiments, the arms may also flex in response to a heart beat. When positioned across the left ventricle of a heart, the device can reduce the lateral distance between the walls of the ventricle and thus allow better coaption of the mitral valve leaflets thereby reducing mitral regurgitation.
摘要:
The invention generally relates to a facility wide sorting and/or sequencing system for improving product processing operations and, more particularly, to a facility wide system and related functionality for simultaneously sorting and sequencing mixed mail pieces such as, for example, flats and letter mail pieces. The flats and letter mail pieces are placed in frames so that all types of mail pieces can be sorted and/or sequenced simultaneously through merging and diverting a stream of filled trays into and out of different streams at a full or substantially full transport speed.