35 results about "Bipolar lead" patented technology

A cardiac pacemaker, other CRT device or neurostimulator has one or more fine wire leads. Formed of a glass, silica, sapphire or crystalline quartz fiber with a metal buffer cladding, a unipolar lead can have an outer diameter as small as about 300 microns or even smaller. The buffered fibers are extremely durable, can be bent through small radii and will not fatigue even from millions of iterations of flexing. Bipolar leads can include several conductors side by side within a glass / silica fiber, or can be concentric metal coatings in a structure including several fiber layers. An outer protective sheath of a flexible polymer material can be included.

A cardiac pacemaker, other CRT device or neurostimulator has one or more fine wire leads. Formed of a glass, silica, sapphire or crystalline quartz fiber with a metal buffer cladding, a unipolar lead can have an outer diameter as small as about 300 microns or even smaller. The buffered fibers are extremely durable, can be bent through small radii and will not fatigue even from millions of iterations of flexing. Bipolar leads can include several conductors side by side within a glass / silica fiber, or can be concentric metal coatings in a structure including several fiber layers. An outer protective sheath of a flexible polymer material can be included.

A circuit protection device includes a case having a transverse top portion provided with a central receiving opening and two locating holes, and two wall portions downward extended from a middle part of the transverse top portion to define a receiving space therebetween for communicating with the receiving opening and locating holes; a cutout unit having two conducting plates connected via a bridge portion, and being inserted in the receiving space with the conducting plates engaged with the locating holes and partially projected from two longitudinal edges of the wall portions; and a bipolar LED mounted in the receiving opening and having a conducting portion in contact with two pins of the cutout unit, and a light source. In an overcurrent state, the bridge portion is burned out, and current flows through the bipolar LED for the same to emit light as a cutout warning signal.

The invention provides a bipolar lead-acid storage battery, which belongs to the technical field of storage batteries and solves the problem of poor performance of an existing bipolar lead-acid storage battery. The bipolar lead-acid storage battery comprises a shell and a top cover, wherein bipolar plates are arranged in the shell; the inner cavity of the shell is divided into a plurality of compartments by the bipolar plates; a battery monomer is arranged in each compartment; the shell is provided with a cover plate; the lower side surface of the cover plate is in sealing connection with the bipolar plates, and the upper side surface of the cover plate is in sealing connection with the top cover; the cavity of the top cover is divided into air chambers; a plurality of air chambers and a plurality of compartments correspond one by one and are communicated via through holes; and each air chamber is independently connected with a check valve. By use of the bipolar lead-acid storage battery, the battery monomers are protected from the interflowing of electrolyte while an active substance use ratio is guaranteed, the performance of the storage battery is improved, and meanwhile, the service life of the storage battery is improved.

The present invention provides a header for an implantable medical device that allows it to be used with either a unipolar lead or a bipolar lead. The set screw normally engaging a ring contact on a bipolar lead is stopped from extending far enough into an insulating layer on a unipolar lead to cause damage to the insulating layer. The use of the universal header of the present invention works to significantly reduce the number of different models of implantable medical devices that a manufacturer must have available.

The invention discloses a positioning diagnosis device for atrioventricular accessory pathway and atrial arrhythmia, which comprises a device for acquiring standard bipolar lead electrocardiosignals, a device for acquiring left atrial potential signals, a device for acquiring right atrial potential signals and a central control system shared by the three devices. The device for acquiring the standard bipolar lead electrocardiosignals comprises a standard bipolar lead electrode and a body surface electrocardio amplifier which are sequentially connected, the device for acquiring the left atrial potential signals comprises an esophagus electrode catheter and an esophagus bioelectric amplifier which are sequentially connected, the device for acquiring the right atrial potential signals comprises a thoracic surface right atrial potential detecting electrode and a thoracic surface bioelectric amplifier which are sequentially connected, and all the three amplifiers are connected with the central control system. The positioning diagnosis device is safe, rapid and effective, and can be used for making positioning diagnosis and distinguishing various complex atrial arrhythmia and atrioventricular accessory pathway.

A system and method for measuring the capture threshold of a bipolar lead in order to determine an appropriate value for the stimulus pulse energy to be used with the lead by a cardiac rhythm management device. An appropriate bipolar stimulating configuration can also be determined. The method is particularly useful in testing bipolar leads used to excite the left ventricle such as when delivering cardiac resynchronization therapy.

The invention relates to a lead-acid battery cathode and a preparation method thereof. The invention provides a lead-acid battery cathode with surface containing polypyrrole and a preparation method of the lead-acid battery cathode. The lead-acid battery cathode comprises a grid and an active material, wherein the grid comprises a Pb-Sb or Pb-Ca alloy, and the active material comprises the following components by weight percent: 30-98 percent of Pb, 0.5-20 percent of PbO, 0.1-15 percent of PbSO4, 0.05-30 percent of carbon black or graphite, 0.2-2 percent of barium sulfate, 0.2-2 percent of humic acid and 0.01-1 percent of short staple. The preparation method comprises an electrochemic modification method, a chemical polymerization deposition method and a dipping coating method. The lead-acid battery cathode can be applied to the improvement of the property of the conventional lead-acid battery cathode, and can also be applied to novel lead-acid battery systems such as a bipolar lead-acid battery, a gel battery, a tubular lead-acid battery, a super lead-acid battery and a lead-carbon battery.

Disclosed is a bipolar lead-acid storage battery. The bipolar lead-acid storage battery comprises a positive monopole plate, a negative monopole plate and multiple bipolar plates, wherein the positive monopole plate, the negative monopole plate and the bipolar plates are constituted by forming negative electrode and negative electrode conductive films by means of coating single surfaces or two surfaces of corresponding substrates with corresponding active materials; the positive monopole plate, the multiple bipolar plates and the negative electrode plate are arranged in sequence based on alternate conversion of positive electrode and negative electrode surfaces; porous diaphragms are arranged between adjacent polar plates and the space between the adjacent polar plates is filled with a conductive liquid; each single-grid battery is formed between the conductive film of the positive monopole plate and the negative electrode conductive film of the adjacent bipolar plate, between the positive and negative conductive films of the adjacent two bipolar plates, and between the conductive film of the negative monopole plate and the positive conductive film of the adjacent bipolar plate; a structure for isolating the corresponding single-grid battery is arranged around each substrate; the positive monopole plate and the negative monopole plate are connected with a positive leading-out terminal and a negative leading-out terminal respectively, wherein the substrates are dense lead-tin alloy substrates; lug bosses with equal distances are distributed on the two surfaces of the substrate; and the surfaces of the substrates are directly coated with corresponding active materials.

The invention discloses a bipolar lead-acid battery. The bipolar lead-acid battery comprises a groove body, multiple plate groups and a plurality of partitions, wherein the plate groups are arranged in the groove body, the partitions are arranged between the groove body and the plate groups and among the plate groups, the plate groups are arranged in two rows and at least two lines, positive monopole plates and negative monopole plates in the same plate group are laminated in a staggered way according to positive and negative attributions, in the same row of plate groups, the positive monopole plate in the plate group is electrically connected with negative monopole plate in the adjacent plate group by a bipolar plate in one-to-one correspondence, in the plate group at an outer line in the rows and lines of the plate groups, the positive monopole plate in the plate group is electrically connected with the negative monopole plate in the adjacent plate group in the same line by a busbar, in the plate group at the other outer line in the rows and lines of the plate groups, the positive monopole plate in the plate group is electrically connected with a positive busbar, the negative monopole in the adjacent plate group in the same line is electrically connected with a negative busbar, and each positive monopole plate or each negative monopole plate is only directly connected with one of the bipolar plate and the busbars.

The invention discloses a preparation method of a high-reliability bipolar plate for a bipolar lead storage battery, and relates to the preparation method of the bipolar plate for a bipolar lead storage battery. The problem that a substrate and an active substance cannot be firmly bonded in a conventional bipolar lead storage battery is solved. The preparation method comprises: 1, pre-treatment; 2, titanium plate surface honeycombing; 3, preferred growth of a lead-tin alloy layer through electroplating; and 4, preparation of the high-reliability bipolar plate. The method is applied to preparation of the high-reliability bipolar plate for a bipolar lead storage battery.

The invention provides a conversion device and a conversion method for electroencephalogram record references; the conversion device and the conversion method are used for converting references of the left ear and the right ear into a uniform infinite reference respectively, and belong to the technical field of biological information. The conversion method provided by the invention is implemented by the following steps of determining spatial positions of electroencephalogram collection electrodes, a to-be-detected head model and equivalent distributed source model information; computing transfer matrixes G and Glr by a boundary element method; computing generalized inverse Glr+ of Glr by a singular value decomposition method, and computing a standardized matrix Rlr according to Rlr=GGlr+; finally, working out electroencephalogram data V minute=Rlr / Vlr taking an infinite point as the uniform reference according to original electroencephalogram data Vlr respectively referenced by the left ear and the right ear. Compared with previous methods, the conversion method has the advantages that the influence brought to electroencephalograms by the electrode movement of the left ear and the right ear in original record data can be eliminated; meanwhile, signals of the electrodes of the left ear and the right ear and proximity electrodes are reduced, and therefore unprecedented exchange between bipolar lead and unipolar lead is realized.

The invention relates to the field of storage batteries, and discloses a bipolar lead-acid storage battery. The bipolar lead-acid storage battery comprises a positive side polar plate, a negative sidepolar plate and a bipolar side plate grid, wherein the bipolar side plate grid comprises a plurality of polar plates arrayed side by side; positive lead plaster and negative lead plaster are respectively coated on the two faces of the polar plates, and solidified; a membrane is padded between every two adjacent polar plates; the two sides of the membranes are respectively contacted with the positive lead plaster and the negative lead plaster; a plurality of wiring terminals are respectively welded on two polar faces of the bipolar side plate grid; the wiring terminals on each polar face are connected by leading-out wires; frames of the bipolar side plate grid are subjected to injection molding to form plastic frames; the leading-out wires are led out of the plastic frames at the upper part of the bipolar side plate grid; the positive side polar plate and the negative side polar plate are respectively formed by injection molding of the two polar faces of the bipolar side plate grid welded with the wiring terminals; the positive lead plaster and the negative lead plaster are respectively coated on one face of the bipolar side plate grid not connected with the wiring terminals; and an electrolyte is contained in the bipolar side plate grid. The bipolar lead-acid storage battery is simple in structure, convenient to manufacture, low in cost and high in reliability.

The invention provides a bipolar lead-acid storage battery, belongs to the technical field of storage batteries and solves the problems that existing storage batteries have short service life and areproduced unsuccessfully. The bipolar lead-acid storage battery comprises a casing with a battery cavity inside and multiple cells arranged in the battery cavity, each cell comprises an inner cavity allowing injection of an electrolyte, the inner cavities of the cells are independent of one another, multiple air distributing chambers communicated with the inner cavities of the cells in a one-to-onecorrespondence are arranged in the casing and located above the battery cavity, a co-pressure cavity is also formed in the casing, and all the air distributing chambers are communicated with the co-pressure cavity through vent holes. The bipolar lead-acid storage battery has the advantages that the bipolar lead-acid storage battery can be produced successfully and used normally.

The invention discloses a high performance bipolar lead-acid storage battery, which includes a positive terminal electrode, a negative terminal electrode and a bipolar pole plate disposed between the positive terminal electrode and the negative terminal electrode. The positive terminal electrode is provided with a positive pole plate, and the negative terminal electrode is provided with a negative pole plate. The bipolar pole plate side opposite to the positive terminal electrode is equipped with a negative electrode, and the bipolar pole plate side opposite to the negative terminal electrode is equipped with a positive electrode. The space between the positive terminal electrode and the negative electrode of the bipolar pole plate, and the space between the positive electrode of the bipolar pole plate and the negative terminal electrode are respectively provided with a fiber partition board for adsorbing an electrolyte solution. The top of each fiber partition board is respectively provided with a gas chamber, and the gas chambers are isolated mutually. Each gas chamber top is equipped with a safety valve, the upper end of which is provided with a cover plate. The gas chambers are set independently, and each gas chamber is respectively provided with the safety valve, so that the stress generated by expansion and contraction of any compartment cannot affect the other compartment.

The invention discloses an electro-oculogram intelligent wheelchair and a control method thereof. The electro-oculogram intelligent wheelchair comprises a wheelchair mechanism, a signal acquisition device, a signal processing device and a wheelchair motion control device. The signal acquisition device comprises a bipolar lead electrode patch assembly and a signal acquisition module. The signal processing device comprises a feature extraction module and a mode recognition module. The feature extraction module is used for extracting waveform features of electro-oculogram signals. The mode recognition module is used for firstly acquiring various feature information of waveform features, and then comparing various feature information with various preset recognition parameters in a preset recognition mode to determine a motion mode corresponding to the waveform features. The wheelchair motion control device is used for driving the wheelchair body to move according to a motion mode determined by the mode recognition module. The electro-oculogram intelligent wheelchair can accurately control the intelligent wheelchair through the electro-oculogram signals, and has good real-time performance, more reliable extraction, simple and convenient parameter adjustment, strong applicability, simple operation and convenient adjustment.

Contemplated bipolar lead acid batteries include a bipole assembly with a monolithic or composite current collector that is in contact with the PAM. Especially preferred current collectors have a substrate formed from pure lead and grid formed from a lead alloy, wherein the interface between the grid and substrate is formed via electroforming and / or resistance welding. Particularly preferred batteries are configured as deep cycle batteries and have a low ratio between the surface area of the grid and the weight of the PAM.

Described is a detection device (1) for detecting cardiac electrical signals, wearable by a patient, comprising a right lower electrode (11) and a left lower electrode (12), for detecting cardiac electrical potentials, positioned in alignment with each other on a first horizontal axis (x′), spaced apart from each other by a first distance (d1); a right upper electrode (13) and a left upper electrode (14), for detecting cardiac electrical potentials, positioned above said lower electrodes (11, 12), and being aligned with each other on a second horizontal axis (x″), parallel to said first horizontal axis (x′), and spaced from each other by a second distance (d2), greater than or equal to said first distance (d1); and a logic control unit (U), electrically connected to said electrodes (11, 12, 13, 14), wherein said logic control unit (U) is configured to receive a first bipolar lead (DI′), detected between said left upper electrode (14) and said right upper electrode (13); a second bipolar lead (DII′), detected between said left lower electrode (12) and said right upper electrode (13); a third bipolar lead (DIII′), detected between said left lower electrode (12) and said left upper electrode (14); a first unipolar lead (V1′), detected between said right lower electrode (11) and a first average potential, and a second unipolar lead (V2′), detected between said left lower electrode (12) and said first average potential, wherein said first average potential is equal to the average of detected signals, with respect to a reference potential, on said right upper electrode (13), on said left upper electrode (14) and on said left lower electrode (12). The invention also relates to a system comprising said device and a relative method of operation.

The invention discloses a double-stage wearable household electrocardiocorder and a method thereof. The electrocardiocorder comprises a shell, a bipolar lead electrode, a signal filtering, amplifying and conditioning circuit and a CPU, wherein the bipolar lead electrode, the signal filtering, amplifying and conditioning circuit and the CPU are arranged in the shell. The microprocessor is further connected with a memory card. The shell is provided with a switch / emergency button and an indicator lamp. A power module and a charge circuit are further arranged in the shell. The bipolar lead electrode is connected with the signal filtering, amplifying and conditioning circuit. The signal filtering, amplifying and conditioning circuit, the switch / emergency button, the indictor lamp, the memory card and a data communication module are connected with the CPU. The signal filtering, amplifying and conditioning circuit, the CPU, the switch / emergency button, the indicator lamp, the memory card and the data communication module are connected with the power module. The charge circuit is connected with the power module. The electrocardiocorder is convenient to operate and suitable for household use; by means of a fixing mode in which patches and binding belts are adopted, it can be avoided that motion interference is caused when a user moves to drag a lead wire.

The invention provides a method for preparing a composite active material bipolar electrode for a bipolar lead-acid battery. The method comprises the following steps: after active material lead plaster of a polar plate is applied on the surface of a substrate, uniformly and vertically forming multiple rows of round holes in the active material, wherein the depth of each round hole is equal to the coating thickness of the active material; after a part of round holes is filled with adhesives and is fully filled, carrying out curing and drying to obtain the composite active material bipolar electrode. The method has the advantages that the combination effect of the active material and the substrate can be improved, smooth electrolyte diffusion is guaranteed, and the prepared bipolar electrode can improve the utilization rate of the electrode active material and can improve the battery capacity and prolong the cycle life of the bipolar lead-acid battery.

The invention discloses a bipolar lead storage battery. The bipolar plates include a positive frame, a negative frame, and a lead substrate clamped between the positive frame and the negative frame. The frame holes in the middle of each positive frame are filled with positive active materials. , the frame holes in the middle of each negative frame are filled with negative active materials; the opposite sides of the positive and negative frames in the same bipolar plate are provided with a circle of glue grooves, and the outer ring of the glue grooves is also provided with a cooperating first The protruding ring and the first groove, the edge of the lead substrate is located between the glue groove and the first protruding ring. The bipolar plate of the bipolar lead-acid storage battery of the present invention is clamped a piece of lead substrate by positive pole frame and negative pole frame, is used for filling active material in pole frame, and sealant is poured in glue tank between pole frame and lead substrate, seals, The positive electrode frame and the negative electrode frame are sealed by the first protruding ring and the first groove that cooperate with each other, the preparation is simple, and the sealing effect is good.

The invention discloses a bipolar lead acid battery, comprising a positive side plate, five monomers and a negative side plate connected in turn; Positive side panels, single panels and negative sidepanels include bezels; A limit frame, a rich liquid bin and an acid injection nozzle are arranged on that board frame; A limit frame is connected with that rich liquid bin, and an acid inject nozzle is arranged on the outside of the frame and is connected with the rich liquid bin; The inner periphery of the limit frame is provided with a boss, and the cross section of the boss and the limit frameis of a T-shaped structure; The boss and the limiting frame form two negative electrode plate limiting grooves respectively on the front and the back of the frame, and the inner periphery of the bossforms a positive electrode plate placing groove. A liquid injection tank communicating with the rich liquid bin is arranged on the side edge of the boss close to the rich liquid bin. The invention discloses a bipolar lead acid battery, which has the advantages of simple structure, simple operation, good coating effect and manual coating efficiency is improved. The inner structure of the inventionis combined ingeniously and has excellent sealing effect.

The invention discloses a positioning diagnosis device for atrioventricular accessory pathway and atrial arrhythmia, which comprises a device for acquiring standard bipolar lead electrocardiosignals, a device for acquiring left atrial potential signals, a device for acquiring right atrial potential signals and a central control system shared by the three devices. The device for acquiring the standard bipolar lead electrocardiosignals comprises a standard bipolar lead electrode and a body surface electrocardio amplifier which are sequentially connected, the device for acquiring the left atrial potential signals comprises an esophagus electrode catheter and an esophagus bioelectric amplifier which are sequentially connected, the device for acquiring the right atrial potential signals comprises a thoracic surface right atrial potential detecting electrode and a thoracic surface bioelectric amplifier which are sequentially connected, and all the three amplifiers are connected with the central control system. The positioning diagnosis device is safe, rapid and effective, and can be used for making positioning diagnosis and distinguishing various complex atrial arrhythmia and atrioventricular accessory pathway.

A bipolar lead acid battery with increased energy density is provided. The battery includes a number of lead acid wafer cell that each comprise a negative electrode having a negative electrode plate and a negative active material positioned on the negative electrode plate, as well as a positive electrode having a positive electrode plate and a positive active material positioned on the positive electrode plate. The positive electrode plate comprises a metal foil with a conductive film thereon, such as a titanium foil or substrate with a titanium silicide coating thereon. The lead acid wafer cell also includes a separator between the negative and positive electrodes, wherein the separator includes an electrolyte for transferring charge between the negative and positive electrodes.

The invention discloses a preparation method of a titanium / tilox black / lead composite substrate. The preparation method comprises the following steps of carrying out coarsening treatment on the surface of a titanium plate before lead electroplating, carrying out sintering to obtain a tilox black layer, and electroplating a lead layer on the surface by use of conductivity of tilox black so that the titanium / tilox black / lead composite substrate for a bipolar lead acid battery is obtained. The sintered tilox black layer is formed on the surface of the titanium plate so that adhesion of the electroplated lead layer and the titanium plate is improved, the electroplated lead layer is used for improvement of oxygen evolution and hydrogen evolution overpotential and increasing of strength of bonding with the active substance, and lead and the active substance form a firmly combined interface in pole plate curing. The titanium / tilox black / lead composite substrate has good electronic conductivity, is stable in the lead storage battery environment, can firmly bond with the active substance thereby forming a good electronic conductive interface, has high oxygen evolution and hydrogen evolution overpotential and high mechanical strength and is suitable as a substrate of a bipolar lead acid battery.