Catheter based devices and methods for gas analysis of bodily fluids or tissues are described. The system generally comprises a catheter having a length, one or more membranes positioned along the length, wherein the one or more membranes are configured to diffuse one or more compounds from a fluid, bodily gas, or tissue of interest through the one or more membranes and into a membrane space defined by the at least one membrane. A gas introduction lumen may be in fluid communication with the membrane space for introducing a gas. A gas extraction lumen may be in fluid communication with the membrane space for extracting the gas and the one or more compounds dispersed within the gas from the membrane space. An analyzer may be in communication with the membrane space, wherein the analyzer is configured to determine a parameter of the one or more compounds.
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61B 5/1459 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters invasive, e.g. introduced into the body by a catheter
A61B 5/1473 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
Foley type catheter embodiments for sensing physiologic data from a urinary tract of a patient are disclosed. The system includes the catheter and a data processing apparatus and methods for sensing physiologic data from the urinary tract. Embodiments may also include a pressure sensor having a pressure interface at a distal end of the catheter, a pressure transducer at a proximal end, and a fluid column disposed between the pressure interface and transducer. When the distal end is residing in the bladder, the pressure transducer can transduce pressure impinging on it into a chronological pressure profile, which can be processed by the data processing apparatus into one or more distinct physiologic pressure profiles, for example, peritoneal pressure, respiratory rate, and cardiac rate. At a sufficiently high data-sampling rate, these physiologic data may further include relative pulmonary tidal volume, cardiac output, relative cardiac output, and absolute cardiac stroke volume.
A61B 10/00 - Instruments for taking body samples for diagnostic purposesOther methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determinationThroat striking implements
Automated patient support apparatus and methods are described herein where one variation of an access device may generally comprise a sleeve shaft having an elongate length and a sleeve body coupled to a proximal end of the length, wherein the sleeve body and sleeve shaft collectively define a lumen therethrough. The sleeve shaft is insertable within a working lumen of a first instrument such that a fluid tight seal between the sleeve body and the working lumen is formed, and the lumen is configured maintain a pressure within and through the sleeve body and the sleeve shaft.
An automated therapy system having an infusion catheter; a sensor adapted to sense a patient parameter; and a controller communicating with the sensor and programmed to control flow output from the infusion catheter into a patient based on the patient parameter without removing fluid from the patient. The invention also includes a method of controlling infusion of a fluid to a patient. The method includes the following steps: monitoring a patient parameter with a sensor to generate a sensor signal; providing the sensor signal to a controller; and adjusting fluid flow to the patient based on the sensor signal without removing fluid from the patient.
Method and apparatus for personal isolation and/or protection are disclosed. In one variation, the system may include a passive filtration component having a mask configured for positioning over a mouth and/or nose of a user, wherein the mask has at least one portion configured to filter air passing through the at least one portion. An active filtration component having a fan may be included, wherein the active filtration component is configured to filter air entering or exiting the active filtration component via the fan, and a hose fluidly coupled between the passive filtration component and the active filtration component such that the active filtration component is remote from a face of the user when in use.
Embodiments of the invention provide apparatus, systems and method for introducing fluids into a body cavity for treatment. One embodiment provides an apparatus for treating a patient including an access device for insertion into the peritoneal cavity of the patient including an infusion member in a lumen of the access device. An oxygenated solution may be infused and removed into and out of the cavity via the infusion member.
Foley type catheter embodiments for sensing physiologic data from a urinary tract of a patient are disclosed. The system includes the catheter and a data processing apparatus and methods for sensing physiologic data from the urinary tract. Embodiments may also include a pressure sensor having a pressure interface at a distal end of the catheter, a pressure transducer at a proximal end, and a fluid column disposed between the pressure interface and transducer. When the distal end is residing in the bladder, the pressure transducer can transduce pressure impinging on it into a chronological pressure profile, which can be processed by the data processing apparatus into one or more distinct physiologic pressure profiles, for example, peritoneal pressure, respiratory rate, and cardiac rate. At a sufficiently high data-sampling rate, these physiologic data may further include relative pulmonary tidal volume, cardiac output, relative cardiac output, and absolute cardiac stroke volume.
A61B 10/00 - Instruments for taking body samples for diagnostic purposesOther methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determinationThroat striking implements
Embodiments of the invention provide apparatus, systems and method for introducing fluids into a body cavity for treatment. One embodiment provides an apparatus for treating a patient including an access device for insertion into the peritoneal cavity of the patient including an infusion member in a lumen of the access device. An oxygenated solution may be infused and removed into and out of the cavity via the infusion member.
Medical devices, apparatus and instruments for use in treating or diagnosing physical pain; Medical devices, apparatus and instruments for measuring and displaying muscle activity, nerve conductivity, and body fluid drainage; Medical devices for collecting, storing, analyzing and transmitting physiological data regarding muscle activity; Medical devices for collecting, storing, analyzing and transmitting physiological data regarding body tissue and fluid conductance, body tissue and fluid impedance, and body fluid drainage for therapeutic purposes; in each case, except in the field of dialysis
10.
METHODS AND DEVICES FOR FLUID DELIVERY AND ANALYTE SENSING VIA AN IMPLANTABLE PORT
Methods and devices for fluid delivery and analyte sensing via an implantable port are disclosed where a port apparatus may be configured for placement within a body of a subject and may generally comprise a port housing and a catheter defining a first lumen which is fluidly coupled to the port housing. A flushing lumen may extend from the port housing and terminate at or near a distal tip of the catheter and an access port may be positioned within or upon the port housing and in fluid communication with the first lumen. Furthermore, an access device configured for percutaneous advancement into contact with the access port may also be included.
Methods and devices for treating and managing addiction are disclosed where an apparatus for mitigating addictive behavior may generally comprise at least two electrodes for positioning in proximity to an ulnar nerve of a body of a subject and one or more sensors configured to detect physiologic parameters which correlate to one or more symptoms indicative of addictive behavior of the subject. A pulse generator may be programmed to receive a sensor output based on the detected physiologic parameters and to apply a treatment stimulation to the ulnar nerve through a skin surface of the subject such that the addictive behavior of the subject is reduced.
Devices and methods for treating the prostate are disclosed where in one embodiment, the apparatus generally comprises a catheter which is sized for placement within a body lumen, at least one balloon positioned along a length of the catheter and defining a contact region for thermally contacting a portion of the body lumen which is in proximity to tissue to be treated, and a reservoir in fluid communication with the at least one balloon through at least one lumen defined through the length of the catheter. The at least one balloon may be configured to receive a refrigerant from the reservoir introduced through the at least one lumen until the contact region is at least partially expanded, the catheter being adjustable to selectively align the contact region against the portion of the body lumen to preferentially cool the portion relative to a remainder of the body lumen surrounding the portion.
A61B 18/18 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
A61B 18/02 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
A61F 7/12 - Devices for heating or cooling internal body cavities
Automated peritoneal organ support devices and methods are disclosed herein. One embodiment of a perfusion system may generally include a fluid source for perfusing a fluid within a body cavity of a subject, a catheter defining a distal opening and at least one lumen which is in fluid communication with the fluid source, a fluid waste reservoir for receiving the fluid from the body lumen, and a pH perfusate source having a pH level of at least 8 and which is in fluid communication with the at least one lumen.
Methods and devices for delivering pancreatic islet function to a body are described where the device may generally comprise at least one port casing configured to be placed subcutaneously within the body. A catheter may be fluidly coupled to the at least one port casing and an encapsulation container having a nanopore membrane and the catheter may be configured to be placed within a peritoneal cavity of the body. An islet lumen may be defined within or along the catheter and in fluid communication between an islet port and the encapsulation container and a flushing lumen may be defined within or along the catheter and in fluid communication between a flushing port and with an exterior of the encapsulation container.
Methods and devices for fluid delivery and analyte sensing via an implantable port are disclosed where a port apparatus may be configured for placement within a body of a subject and may generally comprise a port housing and a catheter defining a first lumen which is fluidly coupled to the port housing. A flushing lumen may extend from the port housing and terminate at or near a distal tip of the catheter and an access port may be positioned within or upon the port housing and in fluid communication with the first lumen. Furthermore, an access device configured for percutaneous advancement into contact with the access port may also be included.
Methods and devices for treating and managing addiction are disclosed where an apparatus for mitigating addictive behavior may generally comprise at least two electrodes for positioning in proximity to an ulnar nerve of a body of a subject and one or more sensors configured to detect physiologic parameters which correlate to one or more symptoms indicative of addictive behavior of the subject. A pulse generator may be programmed to receive a sensor output based on the detected physiologic parameters and to apply a treatment stimulation to the ulnar nerve through a skin surface of the subject such that the addictive behavior of the subject is reduced.
An automated therapy system having an infusion catheter; a sensor adapted to sense a patient parameter; and a controller communicating with the sensor and programmed to control flow output from the infusion catheter into a patient based on the patient parameter without removing fluid from the patient. The invention also includes a method of controlling infusion of a fluid to a patient. The method includes the following steps: monitoring a patient parameter with a sensor to generate a sensor signal; providing the sensor signal to a controller; and adjusting fluid flow to the patient based on the sensor signal without removing fluid from the patient.
An apparatus for the treatment or prevention of osteopenia and osteoporosis, stimulating bone growth, preserving or improving bone mineral density, and inhibiting adipogenesis is described where one embodiment may comprise a motor configured to be in vibrational conductance with an area of the subject, one or more sensors in communication with the motor for receiving feedback relating to the vibrational conductance, and a controller in communication with the motor. The controller may be configured to receive the feedback through the one or more sensors and determine an amount of vibrational conductance transmitted to the area of the subject such that the feedback is correlated to a fit of the motor relative to the area of the subject. Additionally, the controller may be further configured to adjust one or more parameters of the motor in response to the correlated fit until the feedback is optimized within a predetermined range for treatment.
A61H 1/00 - Apparatus for passive exercisingVibrating apparatusChiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
19.
Methods and devices for the diagnosis and treatment of diabetes
Methods and devices for the diagnosis and treatment of diabetes are disclosed in which an analyte concentration within a peritoneal fluid of a human subject may be determined by implanting an analyte sensor apparatus in the subject where the apparatus may comprise a housing and a flexible sensing catheter which has a lumen with a plurality of apertures and an exterior surface with an analyte sensor affixed thereto. The catheter may comprise a proximal end attached to the housing and the remaining end may be positioned freely within the peritoneal space to contact peritoneal fluid where an analyte concentration in the peritoneal fluid may be sensed. The housing may be anchored at a subcutaneous site proximate the peritoneal space. The sensed analyte concentration may then be transduced into a transmittable electrical signal.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61M 5/172 - Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters electrical or electronic
A61B 5/1459 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters invasive, e.g. introduced into the body by a catheter
A61B 5/1473 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
A61B 5/1486 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase
Foley type catheter embodiments for sensing physiologic data from a urinary tract of a patient are disclosed. The system includes the catheter and a data processing apparatus and methods for sensing physiologic data from the urinary tract. Embodiments may also include a pressure sensor having a pressure interface at a distal end of the catheter, a pressure transducer at a proximal end, and a fluid column disposed between the pressure interface and transducer. When the distal end is residing in the bladder, the pressure transducer can transduce pressure impinging on it into a chronological pressure profile, which can be processed by the data processing apparatus into one or more distinct physiologic pressure profiles, for example, peritoneal pressure, respiratory rate, and cardiac rate. At a sufficiently high data-sampling rate, these physiologic data may further include relative pulmonary tidal volume, cardiac output, relative cardiac output, and absolute cardiac stroke volume.
A61B 5/029 - Measuring blood output from the heart, e.g. minute volume
A61B 5/08 - Measuring devices for evaluating the respiratory organs
A61B 10/00 - Instruments for taking body samples for diagnostic purposesOther methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determinationThroat striking implements
Use of the peritoneal space provides a more direct tracking of blood glucose, capturing faster glucose kinetics, avoiding membrane/encapsulation effects, having less lag time and lag time variability, and eliminating the effect of variations in skin temperature, cardiac output, and body position during sleep. A peritoneal sensor system may be implanted within the peritoneal space and may generally include a sensor/sampler portion, which is implanted in the peritoneal space, and a control portion/controller, which may be implanted elsewhere, such as subcutaneously, or may be external to the patient.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Business consulting services in the field of medical devices; Business consulting and management in the field of clinical trials concerning medical devices, namely, providing information management services; Business consulting services in the field of regulatory approvals concerning medical devices; Providing consulting services in the field of regulatory submission management to medical companies to assist them with applications for medical device approval; Business consulting services in the field of regulatory submissions concerning medical devices; Business consulting and management in the field of clinical trials, namely, clinical data and regulatory submission management on behalf of medical, biopharmaceutical and biotechnology companies to assist them with clinical research, clinical trials and applications for medical device approval; Business consulting and management in the field of clinical trials concerning medical devices, namely, providing information management services; Business consulting services in the field of quality system information management concerning medical devices; Regulatory submission management, namely, assisting others in preparing and filing applications for medical devices with governmental regulatory bodies; in each case, except in connection with dialysis Consulting services in the field of medical device product development; Consulting services, namely, product testing, product safety testing and product quality testing consultation in the field of experimental tests concerning medical devices; Consulting services regarding the conducting of clinical trials for others relating to medical devices in the field of physical pain, cardiovascular disease, diabetes, osteoporosis, [ dementia, ] incontinence, overactive bladder, vascular access, body fluid drainage, and enteral feeding and monitoring; New product design, engineering, research, development services for others in the field of medical devices; in each case, except in the field of dialysis
23.
DEVICES AND METHODS FOR MONITORING PHYSIOLOGIC PARAMETERS
Devices and methods for monitoring physiologic parameters are described herein which may utilize a non-invasive respiratory monitor to detect minor variations in expiratory airflow pressure known as cardiogenic oscillations which are generated by changes in the pulmonary blood volume that correspond with the cardiac cycle. These cardiogenic oscillations are a direct indicator of cardiac function and may be used to correlate various physiologic parameters such as stroke volume, pulmonary artery pressure, etc.
Disclosed is a chest drainage system which reduces or eliminates pooling of blood/liquid and/or clogging/clotting in the drainage tube. Generally, the chest drainage system continuously monitors chest tube status and clears pooled liquid when necessary to restore negative pressure to the chest. The system may include a valve device which is located between the patient's chest tube and drainage tube and may be used with any standard chest tube. The chest drainage system also includes a controller for monitoring the pressure at or near the valve device and/or at or near the suction device, and possibly a pump for assisting in clearance of pooled liquid and/or clots. The controller may also control the valve device and/or suction device in response to pressure signals.
A computer application on a device for tracking menstrual blood loss by receiving an image of a used sanitary product, analyzing, or receiving analysis of, the amount of blood volume in the image, and aggregating the blood volume from more than one image to determine total blood loss volume for a menstrual cycle.
G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
A multielectrode sensor for use in obtaining electrocardiograph measurements of a patient is disclosed. The sensor includes a substrate, at least a portion of the substrate being stretchable, and a plurality of electrodes coupled to the substrate. A distance between at least two of the electrodes is adjustable by stretching the substrate between the at least two electrodes.
Described herein is a venous pressure monitoring system which is configured to determine central venous pressure based on jugular venous pressure. One embodiment of the JVP monitoring system may include at least one signal processor, at least one accelerometer, at least one memory 5 for storing computer instructions related to the processor(s) and/or accelerometer(s), at least one display, and at least one patch adapted to be held in place or otherwise secured to a patients neck. The signal processor may be in communication with the accelerometer(s) to translate the output from the accelerometer(s) to yield a signal and calculate the central venous pressure.
Devices and methods to measure gastric residual volume (GRV) are described whereat least one additive component (a GRV indicator) may be dispersed in a body lumen such as a stomach. The GRV indicator may change a physical (chemical, electrical, thermal, mechanical, optical etc.) characteristic within the stomach by a measureable degree. This degree of change and/or the rate of return to the previous state, may be used to determine the GRV of a patient. The determined GRV can also be used to automatically or semi- automatically control the patient's feeding rate and/or volume and/or frequency to adequately nourish the patient but avoid complications. The physical characteristic(s) may also be used to detect that the feeding catheter or tube is in the correct location (ie stomach vs lung or esophagus).
Methods and devices for the diagnosis and treatment of diabetes are disclosed in which an analyte concentration within a peritoneal fluid of a human subject may be determined by implanting an analyte sensor apparatus in the subject where the apparatus may comprise a housing and a flexible sensing catheter which has a lumen with a plurality of apertures and an exterior surface with an analyte sensor affixed thereto. The catheter may comprise a proximal end attached to the housing and the remaining end may be positioned freely within the peritoneal space to contact peritoneal fluid where an analyte concentration in the peritoneal fluid may be sensed. The housing may be anchored at a subcutaneous site proximate the peritoneal space. The sensed analyte concentration may then be transduced into a transmittable electrical signal.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61M 5/172 - Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters electrical or electronic
A61B 5/1459 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters invasive, e.g. introduced into the body by a catheter
A61B 5/1473 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
A61B 5/1486 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase
A61M 5/14 - Infusion devices, e.g. infusing by gravityBlood infusionAccessories therefor
Sensing Foley catheter variations are described herein which may comprise a fluid chamber defining a receiving channel and a port fluidly coupled to a drainage lumen of the catheter such that the receiving channel is in fluid communication with the drainage opening. A pressure sensing mechanism located within the fluid chamber may comprise a pressure sensing mechanism which is configured to detect fluid pressure when body fluid, such as urine, is introduced into the drainage opening of the catheter and is received within the receiving channel and impinges upon the pressure sensing mechanism.
A computer application on a device for tracking menstrual blood loss by receiving an image of a used sanitary product, analyzing, or receiving analysis of, the amount of blood volume in the image, and aggregating the blood volume from more than one image to determine total blood loss volume for a menstrual cycle.
A61K 35/12 - Materials from mammalsCompositions comprising non-specified tissues or cellsCompositions comprising non-embryonic stem cellsGenetically modified cells
32.
WEARABLE APPARATUS FOR THE TREATMENT OR PREVENTION OF OSTEOPENIA AND OSTEOPOROSIS, STIMULATING BONE GROWTH, PRESERVING OR IMPROVING BONE MINERAL DENSITY, AND INHIBITING ADIPOGENESIS
A wearable apparatus for the treatment or prevention of osteopenia or osteoporosis, stimulating bone growth, preserving or improving bone mineral density, and inhibiting adipogenesis is disclosed where the apparatus may generally comprise one or more vibrating elements configured for imparting repeated mechanical loads to the hip, femur, and/or spine of an individual at a frequency and acceleration sufficient for therapeutic effect. These vibrating elements may be secured to the upper body of an individual via one or more respective securing mechanisms, where the securing mechanisms are configured to position the one or more vibrating elements in a direction lateral to the individual, and the position, tension, and efficacy of these vibrating elements may be monitored and/or regulated by one or more accelerometers.
A61H 1/00 - Apparatus for passive exercisingVibrating apparatusChiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
A61H 7/00 - Devices for suction-kneading massageDevices for massaging the skin by rubbing or brushing not otherwise provided for
Devices and methods for more draining the bladder, preventing airlocks from forming in the drainage tube and clearing them when they do, and increasing the accuracy with which urine output is measured in an automated way. The device includes one or more lumens, a reservoir for receiving the bodily fluid, and a pumping mechanism that never fully obstructs outflow of bodily fluid. The device also includes additional measurements of the urine, such as specific gravity, oxygen tension, conductivity, gas pressures, and sediment, to improve the monitoring of fluid status, renal function, and other important patient parameters. Methods for detecting and clearing a drainage lines and taking measurements of multiple urine parameters for detecting acute kidney injury, urinary tract infection, intra-abdominal hypertension, abdominal compartment syndrome, or sepsis.
Methods and devices for the diagnosis and treatment of diabetes are disclosed in which an analyte concentration within a peritoneal fluid of a human subject may be determined by implanting an analyte sensor apparatus in the subject where the apparatus may comprise a housing and a flexible sensing catheter which has a lumen with a plurality of apertures and an exterior surface with an analyte sensor affixed thereto. The catheter may comprise a proximal end attached to the housing and the remaining end may be positioned freely within the peritoneal space to contact peritoneal fluid where an analyte concentration in the peritoneal fluid may be sensed. The housing may be anchored at a subcutaneous site proximate the peritoneal space. The sensed analyte concentration may then be transduced into a transmittable electrical signal.
Location tracking is used to monitor or diagnose clinical conditions in patients to promote accurate reporting of patients' whereabouts and activity levels. Changes in movement patterns allow for detection and monitoring of diseases and clinical conditions. Patients may choose their desired privacy level, as well as the locations which they wish to track. Embodiments of this invention allow patients the option to set their personal information as anonymous.
A Foley type catheter for sensing physiologic data from a urinary tract of a patient, a system that includes the catheter and a data processing apparatus, as well as methods for sensing physiologic data from the urinary tract of a patient. Embodiments may include a pressure sensor having a pressure interface disposed at a distal end of the catheter, a pressure transducer at a proximal end of the catheter, and a fluid column disposed between the pressure interface and the pressure transducer. When the catheter is inserted into the urinary tract and the distal end is residing in he bladder, the pressure transducer can transduce pressure impinging on it from the pressure interface into a chronological pressure profile that has sufficient resolution to be processed into one or more distinct physiologic pressure profiles, as, for example, peritoneal pressure, respiratory rate, and cardiac rate.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
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.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters
A61B 5/1459 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters invasive, e.g. introduced into the body by a catheter
A61B 5/1473 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
A61B 5/1486 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase
An automated therapy system having an infusion catheter; a sensor adapted to sense a patient parameter; and a controller communicating with the sensor and programmed to control flow output from the infusion catheter into a patient based on the patient parameter without removing fluid from the patient. The invention also includes a method of controlling infusion of a fluid to a patient. The method includes the following steps: monitoring a patient parameter with a sensor to generate a sensor signal; providing the sensor signal to a controller; and adjusting fluid flow to the patient based on the sensor signal without removing fluid from the patient.
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.
Methods and apparatus for the treatment of a body cavity or lumen are described where a heated fluid and/or gas may be introduced through a catheter and into treatment area within the body contained between one or more inflatable/expandable members. The catheter may also have optional pressure sensing elements which may allow for control of the pressure within the treatment zone and also prevent the pressure from exceeding a pressure of the inflatable/expandable members to thereby contain the treatment area between these inflatable/expandable members. Optionally, a chilled or room temperature fluid such as water may then be used to rapidly terminate the treatment session.
A method of providing hypothermia to a patient including the steps of inserting a fluid delivery member into a peritoneal cavity of the patient; delivering hypothermia fluid from a fluid source into the peritoneal cavity through the delivery member; and limiting fluid pressure within the peritoneal cavity without providing feedback control to the fluid source. The invention also provides an apparatus for practicing the method.
The current invention provides this advance in infection control via its unique application of active sterilization to a catheter or implant. While most catheters, and many implants, are passive devices, the current invention will provide an active component as a integral part of the implanted catheter or device to continuously or intermittently sterilize the exposed surfaces/areas of the device. This active sterilization may be accomplished by a variety of mechanisms, including, application of heat, RF, microwave, ultrasound, ultraviolet radiation or other energy capable of sterilizing the device or dislodging any problematic biofilm that may form. The active sterilization may also employ the pumping of a sterilizing chemical from an attached drug reservoir, the use of electricity or freezing temperatures or any other mechanism for either inhibiting, killing or dislodging any infection material in contact with the implant.
The present invention may create and maintain a pressure differential in the vicinity of the user's nasopharynx. A portable filter and pressurized air source subjects the region of the user's nasopharynx to positive or negative pressured air. Positive pressure prevents exposure to surrounding air while negative pressure isolates those around the user from potential toxins or pathogens exhaled from the user. With positive pressure, surrounding air is displaced preventing exposure to ambient air in most instances. With negative pressure, exhaled air is evacuated from the nasopharynx, filtered and returned to the user's surroundings to prevent exposure to those around the user. Such devices may be incorporated into garments, accessories or existing isolation devices (e.g., face masks) to improve efficacy. Alternatively, the device may also be attached to an air source in the user's vicinity and provide filtration of the air prior to delivery to the region surrounding the user.
Embodiments of the invention provide apparatus, systems and methods for introducing fluids into a body cavity for hypothermic, resuscitative, or other treatment. One embodiment provides an apparatus for introducing fluids into a peritoneal cavity comprising an access device for insertion into subcutaneous tissue, an infusion member and an advancement member. The access device includes a lumen, a proximal end, a tissue penetrating distal end and a stop for controlling the depth of the distal end into tissue. The infusion member includes an infusion lumen, a removal lumen and at least one sensor and is advanceable from a lumen of the access device into the peritoneal cavity. The advancement member is removably positionable in an infusion member lumen and has sufficient column strength to advance the infusion member tip through abdominal wall tissue into the peritoneal cavity. When the advancement member is removed, the infusion member tip is substantially atraumatic.
