537results about "Medical insufflators" patented technology

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.

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.

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 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.

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 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.

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

A medical fluid suspension generating apparatus for performing medical procedures includes a Venturi-agitating tip assembly composed of a multi-channel arrangement at a proximal first end thereof and a tip at a distal second end thereof. The apparatus also includes a compressed medical fluid unit fluidly connected to the multi-channel arrangement at a proximal first end of the Venturi-agitating tip assembly and a medical solution fluidly connected to the multi-channel arrangement at a proximal first end of the Venturi-agitating tip assembly. Pressurized gas, from the compressed medical fluid unit, and the medical solution are combined within the Venturi-agitating tip assembly in a manner generating an enriched medical suspension that is ultimately dispensed from the suspension delivery apparatus.

A leak detecting apparatus (1) for detecting a leak and determining the size of the leak in a suture repaired site (5) of a hollow organ (3), for example, a stomach, in a cavity (7), for example, the peritoneal cavity of a subject comprises a first insufflator (12) for insufflating the hollow organ (3) with a first gas, and a second insufflator (14) for insufflating the cavity (7) with a second gas. A gas detector (18) is provided for detecting the concentration of the first gas in gases exhausted from the cavity (7) through a communicating conduit (35). A flow meter (25) monitors the flow rate of the first gas to the hollow organ (3). First and second pressure sensors (15) and (16) monitor the static pressure of the first and second gases in the hollow organ (3) and the cavity (7), respectively. The apparatus (1) is operable in a first mode and a second mode. In both the first and second modes of operation a microprocessor (50) controls the second insufflator (14) for maintaining the pressure in the cavity (7) at a relatively low predefined pressure, and the first insufflator (12) for maintaining a constant predefined pressure differential between the pressures in the hollow organ (3) and the cavity (7) of approximately 7 mmHg. In the first mode the microprocessor (50) determines the size of the leak as a function of the pressure differential and the concentration of the first gas in the exhaust gases. In the second mode of operation the microprocessor (50) determines the size of the leak as a function of the pressure differential and the flow rate of the first gas to the hollow organ (3) with the hollow organ (3) sealed apart from the sutured site (5).

Surgical port attachments, adapters, modules, and methods of making and using the same are disclosed. Surgical ports are particularly suitable for cleaning surgical tools operable within body cavities. Surgical port attachments, adapters, modules and methods thereof are also disclosed, which may be adapted to attach to the interior or onto a trocar and used to clean the lens and light source of an endoscope.

A light irradiation device includes first and second light sources to emit first light and second light having mutually different wavelengths, respectively, at timings close to each other regardless of overlap between the first light and the second light, the first light has a wavelength band for inducing destruction of bacteria by damaging a cell as the first light acts on a photosensitizer present in the bacteria, wherein the second light has a wavelength band for inducing the destruction of the bacteria by changing the structure of a genetic material present in the cell of the bacteria, and a dose of the second light source is less than 1 / 10 of a dose of the first light source.

A method for automatically detecting a clinically relevant leak and / or inadequate closure following a medical procedure, in a hollow organ residing in the interior volume of a body cavity. The test method includes the steps of: injecting, via an adapted injection element, a specific test gas or a gas mixture containing at least one test gas, into the organ, analyzing the gas mixture and measuring the test gas concentration in the interior volume of the body cavity via an adapted detection element and at least during a measurement window, evaluating the likelihood of the presence of a leak and its degree of severity, by comparing stored data and real-time data with each other. The pressure difference between the interior of the hollow organ(s) and the interior volume of the body cavity is controlled or mastered at least at a given moment during at least one measurement window.

Ablation systems and methods include improved methods of generating heated vapor. A vapor ablation system preferably has a controller having a user interface that receives data indicative of a treatment session time, a pump in data communication with the controller, and a catheter having an electrode and in fluid flow communication with the pump. The controller is configured to control the pump to provide fluid to a lumen of the catheter, to cause an electrical current to be delivered to the electrode to heat the fluid in the lumen and convert the fluid to heated vapor, to control the delivery of the fluid and generation of the heated vapor based on the data indicative of the time and without modifying a flow rate of the fluid or a voltage and / or current level of the electrical current based on data from a sensor located in or on the catheter.

Various examples of the disclosed subject matter include systems and methods to control a flowrate of a smoke evacuation system. In one example, a smoke-evacuation system includes an electrosurgical a unit (ESU) to provide electrical power to an electrosurgical tool within a surgical site. A monitoring device measures one or more electrical parameters from the electrosurgical tool and a controller estimates an amount of generated smoke within the surgical site based on the electrical parameters. The controller sets a flowrate of a suction device to remove gases within the surgical site. The flowrate of the removed gases produced is based on the estimated amount of generated smoke. The controller further controls a flowrate of an insufflation gas produced by an insufflation device where the flowrate of the insufflation gas is substantially equal to the flowrate of the gases produced by the suction device. Other systems and methods are disclosed.

A valve assembly for a medical device that includes a piston configured to move relative to an enclosure of the medical device, the enclosure including a first region in fluid communication with an agent, and a second region in fluid communication with a source of fluid. The piston includes a chamber disposed on a sidewall of the piston which is configured to receive the agent. The piston is configured to move to a first position where the chamber is in fluid communication with the first region and not in fluid communication with the second region such that the agent is received within the chamber, and further configured to move to a second position where the chamber is in fluid communication with the second region and not in fluid communication with the first region, such that the agent within the chamber is mixed with the fluid received in the second region.

The utility model discloses a filter mounting structure for a pneumoperitoneum machine, which comprises a shell, a mounting seat and a filter, the mounting seat is arranged in the shell, and the filter is inserted in the mounting seat; a liquid level sensing assembly and a locking assembly are arranged on the side wall of the mounting seat, the liquid level sensing assembly is used for sensing the liquid level in the filter, and the locking assembly is used for locking the filter in the mounting seat; the shell is further provided with an unlocking assembly, and the unlocking assembly is used for unlocking the filter locked by the locking assembly. During use, the filter is locked in the mounting base through the locking assembly, and the liquid level in the filter is sensed through the liquid level sensing assembly, so that the opportunity for replacing the filter is conveniently judged, and the situation that an operation is affected due to excessive hydrops is avoided; when the filter needs to be replaced, the locking state of the filter is relieved through the unlocking assembly, so that the filter is pulled out in time to be replaced, a new filter is inserted to be locked again through the locking assembly, dismounting and mounting operation is easy and convenient, the replacement efficiency is improved, and the mounting and fixing reliability is high.

To provide a novel therapy of sinusitis and an olfactory disorder without side effects and without troubles caused by manipulation such as respiratory distress.SOLUTION: An operation method of a device for generating pressure vibration so as to improve the symptoms of an aerial conduction olfactory disorder and / or sinusitis causes pressure vibration generated from a pressure vibration generation device to reach one or two or more places chosen from among the olfactory cleft, the middle nasal meatus, and the maxillary sinus through one-side nostril, without administration of a medicine.SELECTED DRAWING: Figure 1

This invention provides a powder dispensing container with a simple structure that allows for the preservation of powder quality before cartridge installation and is immediately usable after cartridge installation. [Solution] The powder ejection container 1 comprises a cartridge 2 for containing powder 100 and a syringe container 3 for supplying air to the cartridge 2. The cartridge 2 comprises an ejection hole 2a for ejecting powder 100, a powder storage chamber S1 communicating with the ejection hole 2a and containing powder 100, an air supply passage 50 for supplying air from the syringe container 3 to the powder storage chamber S1, and a stopper 40 that can openly close the air supply passage 50. The syringe container 3 comprises a cartridge mounting section 12 for detachably mounting the cartridge 2 in the container axis direction of the syringe container 3, and an opening projection 13 that moves the stopper 40 in the container axis direction in conjunction with mounting the cartridge 2 to the cartridge mounting section 12, thereby opening the air supply passage 50.

A vane compressor for a surgical gas delivery system is disclosed, which includes a compressor head having an outlet port for delivering pressurized gas to a gaseous sealing manifold communicating with a gas sealed trocar and an inlet port for receiving spent gas from the gaseous sealing manifold by way of the gas sealed trocar, wherein the compressor head is coupled to and driven by a motor.

Provided is a powder inhalation system including a storage unit for storing a powder for inhalation, and a powder inhaler for inhaling the powder. The powder inhaler has a chamber in which the storage unit is disposed, and the storage unit stores a desiccant different from the powder.

The invention relates to a fluid management module (10) for a medical fluid processing device (200), in particular for an insufflator comprising smoke evacuation, having a module housing (12), which has a first fluid outlet (18a) connected to a first fluid line path (16a) and a second fluid outlet (18b) connected to a second fluid line path (16b), and a first fluid filter (20a) arranged in the first fluid line path (16a).

. A gas sealed access cap for a robotic cannula is disclosed which includes a housing defining an interior cavity that supports an annular jet assembly for receiving pressurized gas from an inlet port of the housing, wherein the annular jet assembly is adapted to generate a gaseous sealing zone within the robotic cannula to maintain a stable pressure within the surgical cavity of a patient during the performance of a robotically assisted laparoscopic surgical procedure.

The utility model relates to the technical field of medical instruments, and particularly discloses a pneumoperitoneum machine and a backflow liquid detection device thereof. The backflow liquid detection device of the pneumoperitoneum machine comprises an air outlet connector, an adapter, a first signal line and a second signal line. The air outlet connector is used for being arranged on a panel of the pneumoperitoneum machine in a penetrating mode. The adapter is used for being communicated with an air path in the pneumoperitoneum machine, the adapter is communicated with the air outlet connector to form an air outlet channel, at least part of the air outlet connector is made of a conductive material, at least part of the adapter is made of a conductive material, and an insulating part is arranged between the matching surfaces of the air outlet connector and the adapter so as to insulate the air outlet connector from the adapter; the first signal line and the second signal line are arranged on the air outlet connector and the adapter respectively so that the first signal line and the second signal line can be conducted when the conducting medium passes through the air outlet channel. According to the backflow liquid detection device of the pneumoperitoneum machine, the liquid backflow detection function of the pneumoperitoneum machine can be achieved. And the backflow liquid detection device does not influence the sectional dimension of the air outlet channel, so that the flow control of the pneumoperitoneum machine is not influenced.

An apparatus 100 for treating an insufflation gas comprising an insufflation tube 10 comprising an inlet 11 for receiving a flow of insufflation gas; a nebuliser 20 arranged to deliver a mist of a humidifier liquid into the insufflation tube for creating a humidified gas flow; and a microwave generator 30 arranged to apply microwaves to a heating region 16 of the insufflation tube, the heating region downstream of the nebuliser for heating the humidified gas flow. The heating region may be formed from a microwave susceptor material such as silicon carbide, and may only be on the side of the tube facing the microwave generator and may be located on an interior surface of the tube. There may be temperature sensors 54a 54b located either side of the microwave heating region and a humidity sensor 52 located next to the humidifier. Also disclosed is the insufflation tube itself and a method of using the system to create an insufflation gas.