1057results about "Medical insufflators" patented technology

To provide systems and methods suitable for delivering a therapeutic agent to a target site.SOLUTION: The system comprises a container for holding the therapeutic agent, and a pressure source having pressurized fluid, where the pressure source is in selective fluid communication with at least a portion of the container. A catheter is placed in fluid communication with the container, and has a lumen sized for delivery of the therapeutic agent to a target site. A housing is configured to securely retain the container. The system further comprises a camera having a camera head coupled to the catheter, where the camera provides a visual image of the target site during the delivery of the therapeutic agent.SELECTED DRAWING: Figure 1

The present embodiments provide systems and methods suitable for delivering a therapeutic agent to a target site. In one example, the system comprises a container for holding the therapeutic agent, and a pressure source having pressurized fluid, wherein the pressure source is in selective fluid communication with at least a portion of the container. A catheter is placed in fluid communication with the container, and has a lumen sized for delivery of the therapeutic agent to a target site. A housing is configured to securely retain the container. The system further comprises a camera having a camera head coupled to the catheter, wherein the camera provides a visual image of the target site during delivery of the therapeutic agent.

An access device for a minimally invasive procedure can include a port body defining an instrument channel for a medical instrument, a radial extension extending at least partially outward from the body in a radial direction. The radial extension can extend from a distal end of the port body. The radial extension can define an imaging device cavity defined therein spaced from the port body and opening distally from the radial extension. The imaging device cavity can be configured to receive an imaging device therein for providing images within a field of view that is at least partially distal of the port body.

A device for ablating target tissue of a patient with electrical energy is provided. An elongate shaft includes a proximal portion and a distal portion, and a radially expandable element is attached to the distal portion. An ablation element for delivering electrical energy to target tissue is mounted to the radially expandable element. The device can be constructed and arranged to ablate the duodenal mucosa of a patient while avoiding damage to the duodenal adventitial tissue. Systems and methods of treating target tissue are also provided.

A device for ablating target tissue of a patient with electrical energy is provided. An elongate shaft includes a proximal portion and a distal portion, and a radially expandable element is attached to the distal portion. An ablation element for delivering electrical energy to target tissue is mounted to the radially expandable element. The device can be constructed and arranged to ablate the duodenal mucosa of a patient while avoiding damage to the duodenal adventitial tissue. Systems and methods of treating target tissue are also provided.

The invention relates to the technical field of medical instruments, and provides a pneumoperitoneum machine pressure measurement abnormity control method which comprises the following steps: acquiring air inlet pressure, pressure measurement pressure and smoke exhaust pressure; calculating a difference value between the air inlet pressure and the pressure measuring pressure and a difference value between the pressure measuring pressure and the smoke exhaust pressure; when the difference value between the air inlet pressure and the pressure measuring pressure is larger than a first preset difference value and smaller than a second preset difference value, and the difference value between the pressure measuring pressure and the smoke discharging pressure is larger than a third preset difference value and smaller than a fourth preset difference value, the pressure measuring pressure is selected as display pressure; otherwise, starting a first pressure measurement abnormity detection program. By monitoring the difference value between the air inlet pressure and the measured pressure and the change of the difference value between the measured pressure and the smoke exhaust pressure, pressure monitoring abnormity caused by equipment faults in the operation process can be recognized, the equipment stability is improved, and the operation risk is reduced.

The invention relates to the technical field of medical instruments, and provides a control method, system and device of a pneumoperitoneum machine and the pneumoperitoneum machine. The control method of the pneumoperitoneum machine comprises the following steps that monitoring pressure read by the pneumoperitoneum machine is obtained; when the monitoring pressure is larger than a first pressure threshold value and the maintaining duration is larger than or equal to a first preset duration, the pressure change rate within the first preset duration is obtained; if the pressure change rate is larger than a first pressure change rate threshold value, expected fluctuation is judged, and a first adjusting program is started; and if the pressure change rate is smaller than or equal to the first pressure change rate threshold value, continuous change is judged, and a second adjustment program is started. The reasons of overpressure are distinguished more meticulously according to the pressure change rate, so that different adjusting programs are adopted, the overpressure condition of expected fluctuation can be adjusted in a targeted mode, and the problems that the loss of equipment parts is high, and the time consumed by equipment pressure stabilization is long are solved.

Caloric stimulation and pressure stimulation can be applied to the ear for treatment of neurological disorders, such as migraine, pain, and headache. Heat can be applied first to increase the sensitivity of the mechanoreceptors in the ear. The pressure can be applied after heating to produce a stronger neurological response than would occur without the heating. In some cases, cooling can be used. Valves can be used to direct fluid flow to a right ear, a left ear, or both. Valves can be used to transition the system between an irrigation or caloric mode and a pressure mode. Green eyewear can be used for therapeutic relief.

A system for performing minimally invasive procedures in a body lumen of a patient including a flexible catheter having a first lumen configured and dimensioned to receive an endoscope therethrough and a second lumen configured and dimensioned to receive a first flexible tube therethrough. The first flexible tube is movable through the second lumen and has a distal portion including a first curve extending in a first direction with respect to the longitudinal axis and a second curve extending in a second different direction with respect to the longitudinal axis. A retractor system is positioned at a distal portion of the catheter and is movable from a non-expanded insertion position to an expanded position forming an expanded cage to form a larger working space. The distal portion of the first flexible tube is movable within the expanded cage.

The present disclosure provides devices and methods for insufflating abdomens of subjects under direct visualization. Such devices and methods, in some implementations, include features for cleaning the devices, and certain implementations of the methods permit procedures wherein it is not necessary to use a typical obturator to place a cannula, resulting in safer procedures.

Systems and methods for delivering a gas, such as nitric oxide, are provided. In some embodiments, systems and methods are provided for delivering a gas, such as nitric oxide, in the form of nanobubbles and / or a dissolved gas using a liquid medium.

Disclosed herein is a surgical cannula configured as an instrument retaining or centering apparatus, configured for providing insufflation gases to a surgical cavity of a patient (such as the pneumoperitoneum) and allowing insertion of medical instruments into the surgical cavity through the cannula. The cannula can include features to direct gas flow in particular directions to prevent or reduce smoke, fog / condensation, or other unwanted media from contacting a portion of a medical instrument.

The present invention discloses to surgical port add-on, an adaptor, modules and methods thereof for producing and using a surgical port especially adapted for cleaning surgical tools operable in a body cavity. The invention also discloses a surgical port add-on, an adaptor, modules and methods thereof an adaptor that can be pertaining to the attached in or on a trocar and for use of the same d for cleaning the lens and light source of an endoscope.

A device for ablating target tissue of a patient with electrical energy is provided. An elongate shaft includes a proximal portion and a distal portion, and a radially expandable element is attached to the distal portion. An ablation element for delivering electrical energy to target tissue is mounted to the radially expandable element. The device can be constructed and arranged to ablate the duodenal mucosa of a patient while avoiding damage to the duodenal adventitial tissue. Systems and methods of treating target tissue are also provided.

The present embodiments provide systems and methods suitable for delivering a therapeutic agent to a target site. In one example, the system comprises a container for holding the therapeutic agent, and a pressure source having pressurized fluid, wherein the pressure source is in selective fluid communication with at least a portion of the container. A catheter is placed in fluid communication with the container, and has a lumen sized for delivery of the therapeutic agent to a target site. A housing is configured to securely retain the container. The system further comprises a camera having a camera head coupled to the catheter, wherein the camera provides a visual image of the target site during delivery of the therapeutic agent.

In one embodiment, a medical circuit component for use with humidified gases is described. The medical circuit conduit includes: a body comprising a wall having an inner surface that defines a space within which humidified gases may flow and / or be contained; and moisture transport means and / or element(s) at least partially coupled to and / or at least partially integrated into at least a part of the wall, the moisture transport means and / or element(s) being configured to receive moisture from vapors and / or liquid inside the space and transport at least some of said moisture away from where it was received.

The invention discloses an endoscope pneumoperitoneum pressure system based on AI image evaluation and an intelligent adjusting method, and the method comprises the steps: 1, obtaining an original image of the abdominal cavity of a patient through CT equipment, carrying out the standardization processing of the original image, generating a standardized CT image data set, and constructing a three-dimensional dynamic model of the abdominal cavity of the patient based on an AI algorithm; in the second stage, quantitative analysis of subcutaneous fat thickness, visceral organ volume and operable space volume is carried out on the three-dimensional dynamic model by adopting an AI segmentation algorithm, and a personalized pneumoperitoneum pressure target value Ptarget and an adjustment threshold range are generated through a machine learning model in combination with basic illness state data of the patient; in the third stage, working data are collected in real time through a built-in sensor of the endoscope system, and the working data are input into the reinforcement learning model to dynamically calculate a pressure adjusting instruction delta P; through deep fusion of the AI technology and system closed-loop control, the intelligent level of the endoscope system is remarkably optimized, good hardware support is provided, and the function of optimizing the operation environment and effect is achieved.

The invention relates to the technical field of medical instruments, and particularly discloses a pneumoperitoneum machine control system, method and device, electronic equipment and a storage medium, the pneumoperitoneum machine control system controls a proportional valve to operate based on a proportional valve state machine, and controls an exhaust valve to operate based on an exhaust valve state machine; the state of the proportional valve state machine comprises a blowing waiting state, a blowing state and a post-blowing waiting state which are circularly switched in sequence; the state of the exhaust valve state machine comprises an exhaust closing state, an exhaust opening state and an after-exhaust waiting state which are circularly switched in sequence; according to the system, the proportional valve state machine and the exhaust valve state machine are introduced to achieve fine control over the air supply process and the exhaust process, control logic is simplified, the pressure of the abdominal cavity can be rapidly responded, accurately controlled and flexibly adapted, the frequently-occurring high-pressure condition is effectively prevented, and therefore the safety and efficiency of an operation are improved; and the observability of the system can be improved, and valuable data support is provided for subsequent optimization and improvement.

A conduit for transporting medical gas includes an elongated tube, a sheath provided around the elongated tube, and a pair of connectors at opposite ends of the elongated tube. The elongated tube is formed from a breathable material to mitigate condensation within the lumen. During use, water molecules within the lumen of the elongated tube are dissipated by absorption into the breathable material, diffusion through the breathable material, and release into the surrounding air. The breathable material may tend to expand and soften upon absorbing water molecules. Expansion of the elongated tube may be selectively restricted by the sheath. The restriction by the sheath may mitigate softening of the breathable material.

To provide a cannula and / or a medical instrument accessory configured to locally inject gas to a lumen for surgery of a patient (pneumoperitoneum or the like) or discharge the gas from the patient.SOLUTION: A medical instrument accessory includes a body that can be mounted over at least a part of a medical instrument shaft, the body having an inner lumen, a proximal end part, and a distal end part. The distal end part includes an opening, and the distal end part is arranged at an operation end part of the medical instrument or arranged adjacent to it when in use. An outer wall and the lumen of the medical instrument shaft define a gas flow passage. Gas or fluid is released or introduced to the gas flow passage at the distal end part and adjacent to the end part of the medical instrument shaft.SELECTED DRAWING: Figure 3B

The present invention relates to medical tubes and methods of manufacture. A medical tube includes an elongated conduit having a first opening, a second opening, a longitudinal axis, a lumen extending along the longitudinal axis between the first opening and the second opening, and a corrugated wall formed of an extruded material extending between the first opening and the second opening and surrounding the lumen. The wall is stiffer in a first length of the conduit adjacent the first opening than in a second length of the conduit adjacent the second opening. The variable stiffness of the tube wall can improve heat distribution of the tube and improve condensate return into a humidifier that provides humidified gas to the tube.

The invention relates to the technical field of medical instruments, and particularly discloses a flow adjusting system and method.The system comprises a pneumoperitoneum machine body, an air supply pipeline used for supplying air is arranged in the pneumoperitoneum machine body, and the outlet end of the air supply pipeline is connected with a pneumoperitoneum pipe; the air supply pipeline is provided with a flow adjusting assembly used for adjusting the air output flow of the air supply pipeline and a flow sensor used for collecting output flow information output by the air supply pipeline. The controller is used for driving the flow adjusting assembly to adjust the flow of the pneumoperitoneum tube according to the output flow information in the stable state and the target flow information when the output flow information is in the stable state; the output flow information in the stable state can accurately represent the flow of the pneumoperitoneum tube in the normal state, so that the flow adjusting process of the pneumoperitoneum tube is completed smoothly, accurately and efficiently.

A blocking valve assembly for a surgical gas delivery device is disclosed, which includes a valve body supporting a plurality of pneumatically actuated pistons, each piston mounted for independent movement within a respective piston cylinder between a first position blocking a respective gas passage communicating with a filter cartridge to facilitate a leak test of the gas delivery device and a second position permitting gas flow through the gas passage communicating with the filter cartridge to facilitate a surgical procedure.

The present invention relates to a drug delivery device, which is suitable for drug delivery from the nose of a human body. The drug delivery device comprises: a body assembly (20), wherein the body assembly is internally provided with a drug delivery channel extending along the front-rear direction, and a drug spraying hole is formed at the front end of the drug delivery channel; a gas supply device (30) connected to the rear portion of the body assembly, wherein the gas supply device is in fluid communication with the rear end of the drug delivery channel, and is adapted to supply pressurized gas to the drug delivery channel; and a capsule holder (5) arranged within the rear portion of the body assembly, wherein the capsule holder is adapted to accommodate a nasal pharmaceutical agent, and is configured to be in fluid communication with both the rear end of the drug delivery channel and the gas supply device (30).

The utility model relates to an oscillating positive expiration pressure sputum excretion device which comprises a holding shell, a working cavity is formed in the holding shell, an air channel is fixedly installed above the holding shell, a blocking piece is fixedly installed in the air channel, an air inlet is formed in the position, corresponding to the front portion of the blocking piece, of the upper end face of the holding shell, and an air inlet pipe is fixedly installed below the air inlet. An air nozzle is fixedly installed on one side of the tail end of the air inlet pipe, an oscillation box is arranged at the top end of the air nozzle, and an oscillation piece is rotatably installed in the oscillation box. Through the design that the oscillation box is arranged in the working cavity and the oscillation piece is installed in the oscillation box, compared with a traditional oscillation structure with a single-ball blocking structure, the oscillation piece and a cavity separated, the oscillation structure is more stable; the second air outlet for adjusting the air pressure through the adjusting knob is matched with the design of the transparent air flow indicating tube, multi-gear adjustment and visualization of the air pressure are achieved, the water content in exhaled air is effectively reduced through the design that the water vapor filtering cotton is arranged in the blocking cavity, and the service life of the product is prolonged.

The high-frequency gas guiding device comprises a first pipe body and a second pipe body, the first pipe body extends in the first direction, a first cavity penetrating through the first pipe body in the first direction is formed in the first pipe body, a first opening communicated with the first cavity is formed in one end of the first pipe body, and the first opening is used for outputting gas; a second opening is formed in the end, away from the first opening, of the first pipe body, the second opening is used for inputting gas, the second pipe body is connected to one side of the first pipe body and extends in the second direction, the second direction intersects with the first direction, and a second cavity penetrating through the second pipe body in the second direction is formed in the second pipe body; the second cavity is communicated with the first cavity, a third opening is formed in the end, connected with the first pipe body, of the second pipe body, a fourth opening is formed in the end, away from the first pipe body, of the second pipe body, and the fourth opening is used for inputting atomized gas.

In one embodiment, a method for performing meningeal repair includes closing an open meningeal defect with a human umbilical cord meningeal patch.