39 results about "Pleural spaces" patented technology

The invention discloses a method of treating a patient for pleural effusion comprising percutaneously delivering an adhesive material to a pleural space of the patient. Suitable adhesive materials for performing any of the embodiments of the methods of the invention can be selected from the group consisting of hydrogels, collagen, poly(lactic acid), poly(glycolide), cyanoacrylates, glutaraldehyde, PEG, protein, and polysaccharide and derivatives thereof. The invention also discloses a pleural effusion treatment apparatus comprising an adhesive material adapted to adhere pleural membranes defining a pleural space and a pleural space access member adapted to deliver the adhesive material to the pleural space.

Biocompatible liquid is pumped into a body cavity (eg. subarachnoid space, peritoneum, mediastinum, pleural space) by means of one pump and removed from it by means a second pump, preferably via a double-barreled catheter is used for insertion and removal of the liquid. An optional secondary catheter removes liquid from a distal area of the body cavity. Temperature and pressure are sensed within the cavity and can be controlled by adjusting liquid flow rates. While outside the body, the liquid can be ultraviolet-sterilized, foam fractionated to remove contaminants, oxygenated and pH balanced, cooled or warmed, and augmented with exogenous liquid that may contain drugs.

A variable parietal / visceral pleural coupling may be utilized to create an air-tight seal in the pleural space between the parietal and visceral pleura. This coupling may be utilized to create a seal for other implantable devices.

A device may be implanted subcutaneously with an attached catheter inserted within, e.g., the peritoneal cavity of a subject. The catheter and / or device may also be inserted into another space, e.g., subcutaneous, vascular, peritoneal, cerebrospinal, pleural spaces, etc. The peritoneal fluid which normally collects and / or flows through the peritoneal cavity may be detected by the catheter and analyzed via the device to detect the concentration of glucose within the fluid.

Lung injury such as pneumothorax now can be diagnosed reliably, portably and quickly. Vibro-acoustic waves are sent through the chest and the resulting wave is measured. By analyzing attenuation characteristics determined by the geometry of the chest structures, a determination can be made of whether the patient's pleural space is healthy, contains air (pneumothorax) or contains fluid (hemothorax).

Systems, devices and methods for sensing physiologic data and draining and analyzing bodily fluids are described which are capable of sensing physiologic data based on sensors incorporated into a catheter adapted to reside in any of a urinary tract, gastrointestinal tract, rectal location, pre-peritoneal, pleural space or other body cavity. The devices aid emptying of the bladder, measure urine output and various urine parameters such as oxygen tension, urine conductance and urine specific gravity, monitor renal function, analyze urine parameters, including urine content, including the presence of infection, and track and / or control fluid administration.

A variable parietal / visceral pleural coupling may be utilized to create an air-tight seal in the pleural space between the parietal and visceral pleura. This coupling may be utilized to create a seal for other implantable devices.

Systems, devices and methods for sensing physiologic data and draining and analyzing bodily fluids are described which are capable of sensing physiologic data based on sensors incorporated into a catheter adapted to reside in any of a urinary tract, gastrointestinal tract, rectal location, pre-peritoneal, pleural space or other body cavity. The devices aid emptying of the bladder, measure urine output and various urine parameters such as oxygen tension, urine conductance and urine specific gravity, monitor renal function, analyze urine parameters, including urine content, including the presence of infection, and track and / or control fluid administration.

A collateral ventilation bypass system with chest tube evacuation device may be utilized in combination to removed trapped air from the lungs. With the chest tube evacuation device, any air trapped in the pleural space may be evacuated through the bypass system to prevent a pneumothorax.

Methods and systems for treating pleural disease comprising a providing a low dosage of a sclerosing agent over a period of time. Certain examples include catheter with a sclerosing agent that is inserted into the pleural space. The sclerosing agent is released in a sustained-release manner over a period of time to achieve diffuse pleurodesis of the pleural layers.

The invention relates to a breathing machine man-machine asynchronous classification method and system, a terminal and a storage medium. The method comprises the steps: collecting the multi-channel breathing data of a simulated flow channel, a tidal volume channel, airway pressure, alveolar pressure, pleural cavity internal pressure, cardiac pressure, a corrugated pipe position channel and the like under a man-machine asynchronous event simulated by a simulated lung and a breathing machine; carrying out replacement deviation index (PDI) feature extraction on the respiration data, and labeling the respiration data according to the extracted PDI features; inputting the labeled respiration data into a network model for training to obtain a trained man-machine asynchronous classification model; and classifying the breathing machine man-machine asynchronous events through the trained man-machine asynchronous classification model. According to the embodiment of the invention, the acquired respiration data is small in interference and convenient to acquire, difference analysis of the respiration data of the adjacent channels is carried out by using the PDI features, and the accuracy of man-machine asynchronous classification is improved.

A single use pleural drainage set for medical use, which allows drainage by all physicians of air (pneumothorax), blood (hemothorax) and all other liquids (hydrothorax) accumulated abnormally in the thoracic cavity (pleural space (I)).

An operative member has a cylindrical catheter, an essentially cylindrical hub, an interior passageway and a roll out, open ended flutter valve. The valve has a fixed end secured to the hub and an extendable end. A needle has a stylet distal end and a proximal end formed with a gripping handle. The needle is adapted to be removably positioned within the interior passageway of the catheter and hub. The distance between the handle and the distal end of the needle is slightly greater than the length of the catheter and the hub. After providing the components set forth above, the present invention includes the step of inserting the catheter and needle into a pleural space of a patient and then withdrawing the needle thereby creating an air passageway through the catheter and the catheter and then unrolling the flutter valve from the hub.

This document provides systems and methods that can improve the efficacy of tube and needle thoracostomy. For example, this document provides devices and methods for confirming the proper placement of a chest tube or needle within the pleural space to relieve a pneumothorax or tension pneumothoax.

Systems for the treatment of pleural effusion are disclosed herein. A first system includes a fluid conductor that provides fluid communication with a pleural space of a patient. The first system also includes a canister and a negative-pressure source in fluid communication with the canister. The negative-pressure source pre-charges the canister to a negative-pressure range and maintains the negative-pressure range within the canister while the canister and the fluid conductor are in fluid communication.

The invention relates to a breathing machine man-machine asynchronous classification method and system, a terminal and a storage medium. The method comprises the steps: collecting multi-channel breathing data such as a simulated flow channel, a tidal volume channel, airway pressure, alveolar pressure, pleural cavity internal pressure, cardiac pressure and a current functional residual air volume channel under a man-machine asynchronous event simulated by a simulated lung and a breathing machine; performing variance, mean value, standard deviation, absolute value or square root feature extraction on the respiration data, generating sample data according to the extracted features, and training according to the sample data to obtain a man-machine asynchronous classification model; and classifying the breathing machine man-machine asynchronous events through the trained man-machine asynchronous classification model. According to the embodiment of the invention, the acquired respiration data is small in interference and convenient to acquire, and the difference analysis of the respiration data of the adjacent channels is carried out by using the characteristics such as variance, mean value, standard deviation, absolute value or square root, so the accuracy of man-machine asynchronous classification is improved.

A method for treating pleural effusion in a patient, the method comprising: providing a valve comprising: a body having a distal end, a proximal end and a lumen extending therebetween; an inlet disposed at the proximal end of the body, the inlet being fluidically connected to the lumen; an outlet disposed at the distal end of the body, the outlet being fluidically connected to the lumen; and at least one valve element disposed in the lumen of the body, the at least one valve element being a one-way valve element configured to permit the passage of fluid in a single direction through the lumen of the body; and implanting the valve in the body of the patient such that the inlet of the valve is fluidically connected to the pleural cavity of the patient, and such that the outlet of the valve is fluidically connected to a second body cavity.

An automatic pump-based fluid management system, as described herein, comprises an intercostal pump that is, generally, a resiliently flexible bulb having an inlet and an outlet. The inlet is attached to a first tube that extends from the intercostal pump to a first area of a patient's body, for example, the patient's pleural cavity. The outlet is connected to a second tube that extends from the intercostal pump to a second area of a patient's body, for example, the patient's peritoneal cavity. In use, the intercostal pump is placed between a first rib and a second rib in a patient. The intercostal pump operates by being successively compressed and decompressed between the first and second ribs as the patient breaths.

The present invention introduces novel invasive intermittent negative pressure ventilation for treatment of adults ventilator dependent respiratory failure (VDRF) in various advanced neuromuscular disorders (NMDs). It's a combination of invasive intermittent negative pressure ventilator (IINPV) and continues positive airway pressure (CPAP) into transportable ventilator. Implementation of invasive negative pressure ventilation is via chest tubes to each pleural space, and CPAP is applied via nasal mask or nasal prongs. The IINPV's initiation of breath is patient-triggered via a flow sensor incorporated in CPAP nasal mask / nasal prongs. This novel concept of VDRF management in advanced NMDs will prove to be superior over present modalities of treatment in many aspects which include but not limited to avoidance of tracheostomies, reduction of recurrent respiratory infection, greater patient's independence and quality of life, preserved ability to speak and clear airways spontaneously, liberation from positive pressure mechanical ventilation etc.

The present invention provides methods of treating pleural effusion in a subject, comprising removing fluid from the pleural space at an increased frequency, as compared to previous methods.

A device may be implanted subcutaneously with an attached catheter inserted within, e.g., the peritoneal cavity of a subject. The catheter and / or device may also be inserted into another space, e.g., subcutaneous, vascular, peritoneal, cerebrospinal, pleural spaces, etc. The peritoneal fluid which normally collects and / or flows through the peritoneal cavity may be detected by the catheter and analyzed via the device to detect the concentration of glucose within the fluid.

The invention provides an interventional treatment system suitable for pneumology department, which is applied to the field of medical instruments, the system mainly comprises a drainage absorption module, a puncture module, a suction module and a monitoring module, by arranging the drainage absorption module, pneumatosis and hydrops in a pleural cavity can be permeated and discharged, and meanwhile, the drainage absorption module is arranged to be a sponge, hydrops are discharged through the absorption and permeation effects of the sponge, and meanwhile, hydrops can be discharged through pores of the sponge; by arranging a traction mechanism, the cotton can be pushed out, so that the contact area between the cotton and the hydrops is increased, and the hydrops absorption efficiency is improved; by arranging the puncture module, the trachea can be opened, meanwhile, a drainage tube can be directly inserted into the pleural cavity conveniently, meanwhile, the puncture module is arranged to be of a structure convenient to disassemble, after the drainage tube is inserted, the puncture module is disassembled so that the drainage tube can be moved and operated conveniently, and meanwhile it is guaranteed that the drainage tube cannot be scratched by a puncture needle when the drainage tube is withdrawn.

A connector for use with a pleural catheter that connects securely a drainage tube to a valve of the plural catheter. A system including a fluid receptacle having a negative fluid pressure, a plural catheter having an end designed for implantation into a pleural space of a subject, and an opposite second end having a valve feature, a drainage tube having an end connected to the fluid receptacle and another end having a connector that securely connects the drainage tube to the valve feature of the catheter.