81 results about "Fluid accumulation" patented technology

This patent document discusses, among other things, systems, devices, and methods for predicting an occurrence of impending thoracic fluid accumulation and in one example, invoking a responsive therapy, such as to prevent or minimize the consequences of the impending thoracic fluid accumulation. One example of the present systems, devices, and methods senses or receives at least one parameter that is statistically associated with impending thoracic fluid accumulation from a subject. Using such parameter(s), a probability of impending thoracic fluid accumulation is estimated. A list of parameters determines which values are recurrently sensed or received at various desired time intervals. Another example of the present systems, devices, and methods weights the sensed or received parameter value(s) to compute the probability estimate of impending thoracic fluid accumulation. A responsive preventive thoracic fluid accumulation therapy or other therapy is selected and activated using the probability estimate of impending thoracic fluid accumulation.

The presence of tumor nodules in organs often results in serious clinical manifestations and the permeation by cancer cells of sheaths surrounding organs often produces clinical manifestations of pleural effusion, ascites or cerebral edema. The present invention addresses this problem by providing a method for treating tumors comprising (a) intratumoral administration of a superantigen and / or (b) intrathecal or intracavitary administration of a superantigen directly into the sheath. Intratumoral superantigen results in significant and sustained reduction of the tumor size. Intrathecal administration produces significant sustained reduction of the fluid accumulation associated with clinical improvement and prolonged survival. Useful superantigen compositions for intrathecal and intratumoral injection include tumoricidally effective homologues, fragments and fusion proteins of native superantigens. Also disclosed is combined therapy that includes intratumoral or intrathecal superantigen compositions in combination with (i) intratumoral low, non-toxic doses of one or more chemotherapeutic drugs or (ii) systemic chemotherapy at reduced and non-toxic doses of chemotherapeutic drugs.

A fluid management system for the treatment of ascites, pleural effusion or pericardial effusion is provided including an implantable device including a pump, control circuitry, battery and transceiver; a charging and communication system configured to periodically charge the battery and communicate with the implantable device to retrieve performance data; and monitoring and control software, suitable for use with conventional personal computers, for configuring and controlling operation of the implantable device and charging and communication system. The implantable device includes a number of features that provide automated movement of fluid to the bladder with reduced risk of clogging, with no patient involvement other than occasional recharging of the battery of the implantable device. The monitoring and control software is available only to the treating physician, such that the physician interacts with the implantable device via the charging and communication system.

Device for placement in the thoracic cavity of a patient. The device is a cannula, tube or catheter for pericardial drainage and serves as a conduit for drainage of excessive fluid in the pericardial cavity to a receptacle outside the body. The device is placed in the pericardial cavity at the time of surgery and is used for drainage of fluid collection that is formed at a later stage when all other drainage tubes have been already removed or are clogged by organic material. The device incorporates a system for preventing that any clog or material might close all fenestrations that are present in the tube at a plurality of sites.

Techniques are provided for detecting a clinically-significant pulmonary fluid accumulation within a patient using a pacemaker or other implantable medical device. Briefly, the device detects left atrial pressure (LAP) within the patient and tracks changes in the LAP values over time that are indicative of possible pulmonary fluid accumulation within the patient. The device determines whether the changes in LAP values are sufficiently elevated and prolonged to warrant clinical intervention using, e.g., a predictor model-based technique. If the fluid accumulation is clinically significant, the device then generates warning signals, records diagnostics, controls therapy and / or titrates diuretics. False positive detections of pulmonary edema due to transients in LAP are avoided with this technique. Pulmonary artery pressure (PAP)-based techniques are also described.

A closed loop reciprocating fluid circuit apparatus for mechanically powered and electromechanically powered dock levelers, which may be mounted at a forward edge of a dock leveler to selectively engage the dock leveler during pivotal downward movement of a deck, is provided. The apparatus may include a header extending from a fluid chamber (e.g., a hydraulic cylinder), where the header may selectively engage the deck, within the range of dock leveler heights, including below dock level and above dock level operating positions. The hydraulic cylinder may be vertically oriented and coupled to a fluid accumulation chamber, such that vertical movement of the header in response to the deck's downward movement causes fluid displacement into the accumulation chamber. That displacement may be in a horizontally oriented fluid chamber having a piston that reacts to the fluid transfer. Alternatively, that displacement may be into a resilient fluid chamber such as a bladder housed within a suitable container, or a fluid chamber such as a fluid reservoir with a breather, for air volume compensation. The hydraulic cylinder and header may be urged to the extended position, for example by extension springs acting on a piston within the fluid accumulation chamber, or by a pull chain or latch coupled to the cylinder and the upward movement of the deck. A flow control valve, e.g., a velocity fuse or solenoid valve, is connected between the cylinder and the fluid accumulation chamber to respond to free fall of the deck. Resetting to normal operation after free fall detection may occur after load removal from the deck and by movement of the cylinder to the opposite direction or by electrical control input to the control valve.

The invention provides an in-vivo accumulated liquid steady-pressure drainage device for operations. The change of a negative pressure scope can be controlled, the device is applicable to various emergencies, there is no need to stop a drainage process for replacing a drainage bottle, the operation process is effectively simplified, and the negative pressure drainage effect is improved. Accordingto the technical scheme, the device includes the drainage bottle, an air guiding cylinder is arranged on the right side of the drainage bottle, the drainage bottle is communicated with the air guidingcylinder through an air guiding tube, an air guiding column and a sealing block are arranged in the air guiding cylinder, and a sealing piston is connected to the lower end of the sealing block; thelower end of the air guiding cylinder is connected with an outer airbag and an inner airbag, a check valve is installed on the bottom wall of a double-layer airbag structure, a sealing space is formedbetween the outer airbag and the sealing piston, and a gas channel is formed by making the inner airbag communicated with the air guiding cylinder. By extruding the double-layer airbag structure to switch into a negative pressure state, the air guiding column slides down, correspondingly gas in the drainage bottle flows into the inner airbag, and therefore the interior of the drainage bottle is switched into the negative pressure state. The device has the advantages of being novel in concept, ingenious in structure, easy to operate, convenient to use and the like.

A compression garment for treating post operative patients involved in body contouring surgery and including a base structured for removable disposition in an operative position about the torso and other portions of the patient's body. The compression garment is dimensioned, configured and structured to apply appropriate compression to the surgically affected portions of the patient in order to reduce pain, diminish swelling and avoid fluid accumulation, while not impairing the venous and lymphatic circulation of the affected body portion. The base has one or a first and second cover member overlying its internal and external faces and a closure assembly serves to maintain the garment in a variable closed orientation such that appropriate compressive force may be applied to the affected body areas.

A fluid management system for moving bodily fluid accumulated due to ascites, pleural effusion or pericardial effusion is provided including an implantable pump coupled to an inflow catheter, an outflow catheter, and optionally an anti-clog catheter. The fluid management system facilitates removal of fluid from a body region, such as the peritoneum, pleural cavity or pericardial sac, where drainage is desired to another body region, such as the urinary bladder or the peritoneal cavity. The system includes clog resistant mechanisms such as clog resistant catheters and / or programmed routines for cycling fluid through inlet catheters in predetermined time intervals and / or responsive to sensed conditions to minimize the risk that inlet catheters become clogged due to, for example, tissue ingrowth and / or solid objects within accumulated fluid.

The invention discloses a testing device and a testing method for pollution reduction of maintenance liquid in pipeline for the purpose of testing the pollution reduction performance of drag reduction agent to the maintenance liquid or dropsy in gas pipeline. A zero net-liquid gas-liquid two-phase flow is used as an experimental physical model of the maintenance liquid in gas pipeline; a critical inclination is used as the smallest inclination of the maintenance liquid or dropsy in gas pipeline and a vertical ascent pipe is used as the pipe with the biggest inclination. The pollution reduction rate of the maintenance liquid in the vertical pipeline and the tipping tube with an inclination as the critical inclination is used as the base data of the pollution reduction effect to the maintenance liquid of drag reduction agent. The performing method is to measure the liquid content remaining in a measuring section by a testing device which comprises a vertical pipeline and a tipping tube to acquire the rate of liquid maintenance in pipeline. The pollution reduction rate of the maintenance liquid is acquired by comparing the relative change rate of the maintenance liquid before and after adding the drag reduction agent.

The invention relates to a wound closure device, in particular to a wound closure device in the field of skin wound suture. The invention aims to provide a wound closure device comprising a window, apuller and a fixer, wherein the window comprises a window body wall, a window top wall and an opening / closing window arranged on the window top wall. The puller is arranged on both sides of the window; one end of the puller is connected with the fixer and the other end is connected with the window; and the fixer is provided with a fixed adhesive layer facing the bottom surface of the skin. The wound closure device of the invention enables the functional modules required for wound treatment to reliably, continuously and directly continue to act on the wound healing area, effectively avoiding the seepage fluid accumulation to cause the suture device to fall off, secondary wound infection, wound suture failure, wound malformation healing, and better wound physiological regeneration healing.

A compression garment for treating post operative patients involved in body contouring surgery and structured for removable disposition in an operative position about the torso or other predetermined portion of the patient's body. The compression garment is dimensioned, configured and structured to apply a predetermined, appropriate compression to the surgically affected portions of the patient in order to reduce pain, diminish swelling and avoid fluid accumulation, while not impairing the venous and lymphatic circulation of the affected body portion. The garment includes a base of flexible, compressible material having at least one, but more practically both a first and second cover member overlying the internal and external surfaces of the base, wherein a closure assembly serves to removably maintain the garment in a variably closed orientation while in the operative position such that appropriate compressive force is applied to the affected areas including adjacent soft tissue and bony prominences.

The invention relates to a puncture type drainage and dosage dual-purpose device of the medical department, and belongs to the technical field of medical instruments and apparatuses. The puncture type drainage and dosage dual-purpose device comprises a multifunctional bottom box, a dosage processing device box and an accumulated fluid diversion device box. A power supply box is arranged on the left side of the multifunctional bottom box and internally provided with a rechargeable battery. A battery electricity induction chip is arranged on the upper side of the rechargeable battery. A charging prompting lamp is arranged on the upper side of the battery electricity induction chip. A handle telescopic sleeve is arranged on the upper left side of the power supply box. A device conveying handle is arranged on the handle telescopic sleeve. A charging interface is arranged on the lower left side of the power supply box. A charging interface dustproof cover is arranged on the charging interface. The puncture type drainage and dosage dual-purpose device is complete in function and convenient to use; when accumulated fluid diversion in a patient body and dosage recovery of a fluid accumulation affected part are conducted in the medical department, operation is easy and convenient, time and labor are saved, and the working difficulty of medical staff is lowered.

Techniques are provided for corroborating a preliminary detection of pulmonary fluid overload within a patient made initially based on transthoracic impedance. In one example, corroborative parameters pertaining to hematocrit, device pocket fluid accumulations, heart rate variability (HRV) and mean atrial tachycardia / atrial fibrillation (AT / AF) times are evaluated to confirm the fluid overload. Techniques are also provided for generating proxies for evaluating hematocrit and device pocket fluid accumulation based on certain impedance measurements. Still further, techniques are provided for predicting a possible pulmonary fluid overload based on trends in HRV or mean AT / AF times. System and method examples are set forth herein.

A compression garment for treating post operative patients involved in body contouring surgery and including a base structured for removable disposition in an operative position about the torso and other portions of the patient's body. The compression garment is dimensioned, configured and structured to apply appropriate compression to the surgically affected portions of the patient in order to reduce pain, diminish swelling and avoid fluid accumulation, while not impairing the venous and lymphatic circulation of the affected body portion. The base has one or a first and second cover member overlying its internal and external faces and a closure assembly serves to maintain the garment in a variable closed orientation such that appropriate compressive force may be applied to the affected body areas.

The invention provides a method for judging whether a gas well carries fluid normally or not. According to a liquid droplet model, a critical fluid-carrying flow formula is derived, the critical fluid-carrying flow of the gas well is calculated, compared with the actual yield of a gas producing well, if the critical fluid-carrying flow is larger than the yield, the gas well carries fluid abnormally, fluid is accumulated in the gas well, and if the critical fluid-carrying flow is smaller than the yield, the gas well carries fluid normally; if the liquid droplet model is in an oblate-spheroid shape, the projection, in the vertical direction, of the model is in a regular circular shape, and the projection, in the horizontal direction, of the model is in an oval shape. The critical fluid-carrying flow value obtained by the method can more accurately judge the fluid accumulation condition of the water-production gas well in the Sulige gas field, and compared with other kinds of calculationresults, the critical fluid-carrying flow value obtained by the method is more reliable.

A method of detecting a level of fluid accumulation in an internal organ of a subject is proposed, as well as a system for carrying out the method. The method comprises: providing at least one classifier trained to distinguish between two or more levels of fluid accumulation; acquiring an audio signal (110) generated by said internal organ; and processing, using at least one processor (134), said audio signal (110) by: performing feature extraction to generate at least one feature vector from the audio signal; and assigning a fluid level from the two or more levels to the audio signal by passing the at least one feature vector to the at least one classifier.

The invention discloses an oral liquid for treating hoove. Thirteen medicines of spurge, flos genkwa, scirpus maritimus L, radices zedoariae, fructus citri reticulatae immaturus, fried fructus aurantii immaturus, pericarpium citri reticulatae, radices linderae, cortex magnoliae officinalis, betelnut, omphalia, fructus quisqualis and phytolacca are put into a vessel, are soaked in warm water at a temperature of between 80 and 90 DEG C for twice; each time is kept for 2 hours; two solutions are combined and kept stand to obtain a soaking solution; medicine residue is remained, is added with water, is decocted for twice and is filtered; two filtrates are mixed to obtain a decocted solution; fructus zizyphi sativae is decocted for 1.5 hours, is filtered, is added with common honey and is evenly stirred to prepare a date honey solution; the soaking solution and the decocted solution are mixed, are decocted by soft fire, are added with the date honey solution, then are added with rhubarb, pharbitis seed and excrementum pteropi powder and are evenly stirred; and finally, the mixture is added with sorbic acid as a food antiseptics and is decocted, kept stand and condensed to obtain the oral liquid. With the compatibility of the medicines, the oral liquid can rapidly remove hoove so that parasitic malnutrition, dyspepsia, fluid accumulation, blood retention and cold tea accumulation can be discharged from excrement.

The invention relates to a chest drainage device. The device is characterized in that the device at least comprises an oil cylinder, an oil pump, a two-position four-way electromagnetic valve, an incremental digital reducing valve, a direct-controlled pressure-reduction pressure compensation digital speed control valve, a flow speed sensor, a pressure difference sensor, a one-way valve, and a double-application single-piston rod hydraulic cylinder. According to the hydrothorax drainage device, the flow speed and pressure can be automatically controlled in the dropsy extraction process according to the actual condition, and the pain of patients is reduced, so that the surgical process is more intelligent and humanized. The device takes hydraulic pressure and control as the core, the flow speed and pressure are adjusted and controlled according to related data, the extraction process is monitored, related parameters are adjusted in real time, and the pain of the patients is relieved at the utmost. According to the chest drainage device, the medical safety level of the pleural effusion puncture surgery can be greatly improved, the medical service quality is improved, and the device has great market application values.

The invention relates to engineering machinery common equipment, in particular to a hydraulic oil cylinder. The hydraulic oil cylinder comprises a cylinder barrel, a cylinder bottom, a guide sleeve, a piston rod and a piston, wherein a first seal ring is arranged between the guide sleeve and the cylinder barrel, a first movable seal structure is arranged between the piston rod and the guide sleeve, the first movable seal structure comprises an O-shaped elastomer and a YX-shaped seal ring located behind the O-shaped elastomer, a sealing piece installing groove is formed between the piston and the cylinder barrel, the installing groove is internally provided with a second seal ring and a baffle, and a through hole is formed in the baffle. According to the hydraulic oil cylinder, the first movable sealing structure comprises the O-shaped elastomer and the YX-shaped seal ring located behind the O-shaped elastomer, the seal effect between the piston rod and the guide sleeve is more evident, fluid is easy to flow out by the arrangement of the through hole formed in the baffle of the second seal ring, and the phenomenon that the sealing piece is squeezed out from the installing groove caused by fluid accumulation is prevented.

A method of automatically washing a well casing of a progressing cavity (PC) pump system. The method includes disabling, via a controller, a normal speed control of a progressing cavity (PC) pump of the PC pump system, and closing, via the controller, a gas flow valve to stop upward fluid flow in an annulus of the well casing. The method further includes opening a wash valve to allow fluid from the wash fluid source into the well casing. Upon wash fluid accumulation within the annulus, the method further includes increasing the speed of the pump to begin flushing the well casing, and closing the wash valve.

A refrigerant accumulation and oil recovery device for recovery / regeneration / recharging units for a refrigerant fluid withdrawn from refrigeration or air conditioning plants or heat pumps, characterized by comprising a refrigerant fluid accumulation / evaporation vessel and an oil recovery vessel, said vessels being closed at their top by at least one plate which supports them both, the plate presenting a plurality of passages defining, with said vessels, a part of the charging / recycling circuit of said recovery / regeneration unit, in which said accumulation / evaporation vessel and said oil recovery vessel present at least one wall in common, such that any refrigerant fluid leakage from one of said vessels at the connection interface between said common wall and said plate is recovered into the other.

A system is provided for detecting fluid accumulation in a subject. A movement induced by the beating of the heart is analyzed over time, by monitoring a movement, pressure or force. Changes in density caused by fluid accumulation result in changes in the sensor arrangement signals. Changes are used to indicate that fluid accumulation such as internal bleeding is likely to have taken place.

A system for recovering used drilling fluid from drill cuttings being processed on a shaker screen. The system includes: a vacuum screen attachment operatively connected to the underside of the shaker screen, the vacuum screen attachment operatively connected to a vacuum source by a vacuum conduit; a hydrostatic chamber located in the vacuum conduit downstream of the vacuum screen attachment, the hydrostatic chamber having a fluid dump port at or adjacent to its bottom surface; a means for setting a limit of fluid accumulation in the hydrostatic chamber, wherein fluid dumps from the fluid dump port when the limit of fluid accumulation is reached; and a conduit for conveying the fluid dumped from the fluid dump port to a storage tank.

An expendable sealed thoracic drainage device is composed of an internally fixed three-cavity intrathoracic drain, hard puncture needle and drainage bag. Said intrathoracic drain consists of drain, water bag, water-injecting tube and medicine-injecting tube. Said rain has a three-cavity structure, that is, a water injecting cavity and a medicine injecting cavity are arranged in its tube wall.

The Temporary Skin Substitute of this invention consists of three components: The top component is a thin (approximately 0.001″ thick) silicone elastomer in which laser holes have been drilled; physically attached to the silicone elastomer is a fine knitted nylon fabric (12 / 1, 15 / 1 denier); incorporated into the silicone / nylon structure are collagen peptides [about 10 micrograms per square centimeter of Porcine type 1—“the active component”] without cross-linking agent to enable a quick interaction with fibrin in the wound to achieve acute adherence. The laser drilled holes provide a wide range of porosity to ensure minimum fluid accumulation beneath the Temporary Skin Substitute without wound desiccation. The range of hole diameters preferred in the present invention is 0.75 mm to 1.05 mm and at holes centered at ¼″-⅓″. Providing a structure that has better acute adherence and minimal fluid accumulation beneath the Temporary Skin Substitute, which will reduce infection complications and maximize wound healing. Larger pieces of this skin substitute can be made to cover larger wounds, unlike previous skin substitutes.

The invention belongs to the technical field of gathering and transportation pipeline pigging, and particularly relates to a method for judging dense pigging of a moisture gathering and transportationpipeline. The method comprises the following four steps of calculating the saturated water content of the natural gas at a beginning end and an ending end of the pipeline; obtaining a pipeline effusion quantity value; obtaining the percentage of the pipeline effusion quantity and the pipe capacity volume; and judging whether the pipeline is encrypted or not. According to the method, the accumulated liquid condition of the moisture gathering and transportation pipeline can be simply and quickly predicted, and whether the pipeline needs to be subjected to the encrypted pipeline cleaning or notis quickly and conveniently judged according to the percentage of the accumulated liquid amount of the pipeline and the volume of the pipeline.

The invention relates to a drainage apparatus for leakage of cerebrospinal fluid after spinal operation and a positive-negative-pressure drainage switching determining method. The drainage apparatus comprises a liquid storage bag and a drainage pipe, wherein one end of the drainage pipe is inserted into an inlet of the liquid storage bag, the other end is inserted into a cerebrospinal fluid accumulated position, the bottom of the liquid storage bag is connected with a liquid discharging pipe, the liquid discharging pipe is provided with a discharging control valve, and the drainage apparatus is characterized by also comprising a gravimeter and a specific gravity box for accommodating the accumulated fluid for measuring the specific gravity, the gravimeter is arranged inside the specific gravity box, the drainage pipe enters the liquid storage bag and is communicated with the inlet of the specific gravity box, and the top of the specific gravity box is provided with an opening and is communicated with an inner cavity of the liquid storage bag; and the drainage pipe is serially connected with a negative-pressure drainage ball. The drainage apparatus has the beneficial effects that while the drainage is realized, the cerebrospinal fluid can be primarily tested. By matching the switching determining method, the situation of the cerebrospinal fluid can be dynamically observed, the operation of nursing personnel is facilitated, and collection and detection procedures are simplified.