182 results about "Body cavity" patented technology

Provided are methods and devices for facilitating the advancement of a catheter device, such as an intracardiac ultrasound examination catheter, through a body wall, such as the septum of the heart. The catheter device is advanced through a subject's vasculature to a first body cavity. The catheter device is coupled to a guidewire previously placed within the vasculature between the first and second cavities. The catheter device is then advanced from the first body cavity to the second body cavity through a body wall separating the first and second cavities. To facilitate this advancement, the catheter device can be magnetically coupled to the guidewire. The magnetic assembly can be provided on a distal portion of a sleeve through which the distal portion of the catheter is advanced. A malleable dilator element can also be provided on the distal portion of the sleeve.

The invention discloses a drug delivery device in a human body cavity, which comprises an inflatable balloon, at least one part of the outer wall of the balloon is provided with a protective shell, the balloon is provided with an inner cavity, and the protective shell can be dissolved by specific body fluid in the human body cavity; the triggering part is arranged in an inner cavity of the balloon, and the triggering part can react with body fluid to generate fluid to inflate the balloon when making contact with the body fluid, so that the inflated balloon is tightly attached to the wall of a body cavity; the propelling part is arranged in the inner cavity of the balloon and comprises a tissue penetrating component, and the triggering part can generate power to propel the tissue penetrating component; and the containing part is used for containing a medicine preparation, and the triggering part can push and press the liquid medicine preparation contained in the containing part into the pushing part after the balloon is inflated, and injects the liquid medicine preparation into the inner wall tissue of the human body cavity through the tissue penetrating component. By means of the device, macromolecular drugs or preparations can be injected into the inner wall of the human body cavity, such as the tissue of the intestinal wall.

The application discloses a kind of body cavity effusion pressure self-adaptive control drainage device, it is related to body cavity effusion technical field, including drainage tube, the top of drainage tube is fixedly connected with three-way joint;Liquid storage bag is connected to the export end of drainage tube;Pinch valve is set on drainage tube;Pressure sensor is set on three-way joint;Driving assembly is drivingly connected with pinch valve;Control box is electrically connected with pressure sensor and driving motor respectively, and control box is internally provided with microprocessor;And valve handle is set on pinch valve;By setting pressure sensor, control box, microprocessor and driving assembly, and control box is electrically connected with pressure sensor and driving motor respectively, while setting the setting panel electrically connected with microprocessor, so that medical staff can preset pressure safety range according to patient type, and pressure sensor monitors body cavity pressure in real time and feeds back to microprocessor.

Systems and methods related to polymer foams are generally described. Some embodiments relate to compositions and methods for the preparation of polymer foams, and methods for using the polymer foams. The polymer foams can be applied to a body cavity and placed in contact with, for example, tissue, injured tissue, internal organs, etc. In some embodiments, the polymer foams can be formed within a body cavity (i.e., in situ foam formation). In addition, the foamed polymers may be capable of exerting a pressure on an internal surface of a body cavity and preventing or limiting movement of a bodily fluid (e.g., blood, etc.).

Apparatus and related methods relate to inducing body cavity evacuation. In an illustrative embodiment, a compressive headgear may be configured to selectively apply compression to predetermined points on a patient's head. The headgear may, for example, include a contraction induction control unit. The control unit may, for example, be operable to control the compression level applied by the headgear. The predetermined points may, for example, include a first parietal surface. The points may, for example, include a second parietal surface opposing the first. The points may, for example, include an occipital surface. Various embodiments may advantageously induce muscular contraction around a target body cavity, facilitating evacuation.

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 device for removing stones and foreign bodies from a human cavity including a straight sheath with one or more side branches; said straight sheath including a proximal tube and distal tube with respect to the operator who is holding the device; one or more side branches arise from the proximal tube and said branch or branches share a common lumen with the proximal and distal tubes; at the least, one of the side branches contains a pressure vent in the form of an opening that extends through the wall of the side branch and is sealed to form an airtight channel that extends toward a sealing element assembly. One or more openings at the end of this airtight channel serve as a transposed pressure regulating mechanism and are located and accessible on or near the surface of said sealing element assembly; an operator can regulate the aspiration pressure by covering or uncovering the vent or a portion of the vent.

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.

A hydrogel for treating body cavity injury is derived from a chitosan derivative obtained by bonding aldonic acid to an amino group of a glucosamine unit of chitosan by dehydration condensation. The hydrogel for treating the body cavity injury is granular, can be injected into a body cavity by utilizing an injector, and is used for treating the wound of the body cavity. A body cavity injury treatment kit is provided with a syringe, a tube connected to the syringe, and a granular body cavity injury treatment hydrogel filled into the syringe, the body cavity injury treatment hydrogel being derived from a chitosan derivative, the chitosan derivative is obtained by bonding aldonic acid to an amino group of a glucosamine unit of chitosan through dehydration condensation.

The surgical robotic access system provides access for robotic instruments and / or actuators including the introduction, operation and withdrawal of such robotic manipulators into a body cavity without permitting the escape of pressurized fluid or gas. The surgical robotic access system also provides a multi-faceted range of movement without touching or effecting pressure on the opening in the patient's body cavity.

The invention discloses a gall bladder calculus removing catheter system and method, and relates to the technical field of interventional medical instruments, physical isolation is formed between an isolation cavity and a gall bladder cavity through a flexible structure, calculus is discharged after being crushed and dissolved in the isolation cavity, all mechanical operations are limited to be completed in the isolation cavity, and the gall bladder calculus removing catheter system and method cannot make contact with gall bladder mucosa. The first fluid cavity serves as a high-flow-speed suction cavity, and the first side hole is located in the center area of the isolation cavity. The second fluid cavity serves as a slow injection cavity, the second side hole is located in the edge of the isolation cavity, vortex liquid flow pointing to the center of the isolation cavity is formed in the isolation cavity through cooperation of the second fluid cavity and the second side hole, the vortex liquid flow promotes stones and particulate matter to gather towards the center of the first wrapping structure, and the fishing efficiency is improved.

A fracture plating system may be configured to stabilize a fracture of a bone. The bone may include an interior surface facing toward an interior body cavity of the patient, and an exterior surface facing away from the interior body cavity. The fracture plating system may include a plate formed of a biocompatible polymer and configured to span the fracture. The plate may include an exterior plate surface configured to abut the interior surface, an interior plate surface opposite the exterior plate surface, and a slot passing between the exterior plate surface and the interior plate surface. The fracture plating system may further include a tether configured to apply a force to the plate to draw the exterior plate surface against the interior surface of the bone, and a bracing member securable to the plate to restrict flexure of the plate parallel to a width of the slot.

1. The name of the design product: body cavity hot perfusion therapy machine. 2. The use of the design product: for hot perfusion therapy in human body. 3. The design points of the design product: the shape of the product as a whole. 4. The picture or photo that best indicates the design points: perspective view 1.

A catheter navigation system may be configured to produce a plurality of location signal sets indicating a three-dimensional location of a portion of a catheter in a bodily cavity and a plurality of contact signal sets indicating degrees of detected-transducer-to-tissue contact within the bodily cavity. The catheter navigation system may be configured to, based on the location signal sets and the contact signal sets progressively visually represent in a progressively enlarging manner at least a portion of an envelope representing an interior volume of the bodily cavity, concurrently with a visual representation of transducer graphical elements representing transducers that produce the location signal sets, the contact signal sets, or both, of the portion of the catheter. The visual representation of the at least the portion of the envelope, the transducer graphical elements, or both, may respectively visually represent historical and / or presently detected degrees of transducer-to-tissue contact.

The application discloses a torsion transmission element and an ultrasonic probe. The torsion transmission element has bending flexibility and can transmit a torsion force applied to one axial end to another axial end. The torsion transmission element is formed by coaxially and spirally winding a plurality of spring wires and at least one first signal line, and the first signal line is used for transmitting an electric signal. The torsion transmission element replaces one or more spring wires with the first signal line, and thus, whether the inner hole diameter of the torsion transmission element can allow the signal line to pass through does not need to be considered. In the case that the torsion transmission element has signal transmission capability, the outer diameter of the torsion transmission element can be smaller, and thus, it is beneficial to manufacture a smaller-diameter catheter, an ultrasonic probe and other interventional medical devices which need to be inserted into a human body cavity.

The application discloses a kind of endoscopic surgery components, comprising: the cylindrical snake bone connecting part suitable for being inserted into human body chamber, snake bone connecting part has the first camera being arranged at the distal end and the second camera being arranged in the middle part;Instrument part, including the operating instrument being arranged at the front end of instrument part and the connecting rod being connected with operating instrument, and can be slidably contained in the inner cavity of snake bone connecting part;Handle, the handle is connected to the proximal end of the snake bone connecting part and the connecting rod to operate the snake bone connecting part and the instrument part;Wherein the second camera has the retracted position being contained in snake bone connecting part, and the working position of laterally pushing out snake bone connecting part.

The invention discloses a drug delivery device in a human body cavity, which comprises an inflatable balloon, at least one part of the outer wall of the balloon is provided with a protective shell, the balloon is provided with an inner cavity, and the protective shell can be dissolved by specific body fluid in the human body cavity; the triggering part is arranged in an inner cavity of the balloon, and the triggering part can react with body fluid to generate fluid to inflate the balloon when making contact with the body fluid, so that the inflated balloon is tightly attached to the wall of a body cavity; the propelling part is arranged in the inner cavity of the balloon and comprises a tissue penetrating component, and the triggering part can generate power to propel the tissue penetrating component; and the containing part is used for containing a medicine preparation, and the triggering part can push and press the liquid medicine preparation contained in the containing part into the pushing part after the balloon is inflated, and injects the liquid medicine preparation into the inner wall tissue of the human body cavity through the tissue penetrating component. By means of the device, macromolecular drugs or preparations can be injected into the inner wall of the human body cavity, such as the tissue of the intestinal wall.

Disclosed are devices, systems and methods for a removeable and replaceable tip for a surgical (or dental) suction cannula which facilitates the safe and effective removal of blood and other bodily fluids from a body cavity while allowing manipulation and / or management of various tissues therein. These devices protect delicate anatomic structures from excessive negative pressure while allowing effective suctioning of fluid and debris from the operative field.

An endoscopic plug for performing an endoscopic procedure includes an external housing and internal tubing for securing within a body cavity opening, the external housing including a plurality of support tabs to secure the external housing to an exterior of the body cavity opening, and the internal tubing including an expandable balloon on an outer surface for expanding within the body cavity to secure the plug within the body cavity. The support tabs, expandable balloon and other features help to create a sealed internal environment for performing water aided endoscopy (“WAE”). The endoscopic plug additionally includes an air passage within the internal tubing to inflate the expandable balloon, sloped edges adjacent to the support tabs to seal the external housing to an external opening of the body cavity, and a plurality of valves, seals and pumps which allow for the introduction and retention of liquid into the body cavity.

The invention relates to medical device (1) to be inserted in a defect blood vessel, body cavity, or body duct for treatment or pretreatment thereof. The medical device (1) comprises a hollow shaft (2) having the ability to slidably house an injection means (3), the hollow shaft (2) having a distal end (4) and a proximal end (5), and an elongated holding device (6) connected to the hollow shaft (2), the elongated holding device (6) having a distal end (7) and a proximal end (8). The invention also relates to a kit for the treatment, preferably ablation treatment, of defective blood vessels, body cavities, or body ducts.

This invention provides an ultrafine lithotripsy probe, comprising a probe base and a probe body. One end of the probe base has a mounting hole for installing the probe body. The probe body is installed in the mounting hole using an interference fit. The overall length of the ultrafine lithotripsy probe is 550mm–610mm, and the diameter of the probe body is 1.1±0.2mm. This invention can directly reach the stone lesion location through natural body cavities such as the ureter, without requiring minimally invasive perforation of the body surface, resulting in minimal trauma. Simultaneously, its structural dimensions are rationally configured, with high ultrasonic vibration transmission efficiency, excellent overall bending and fracture resistance, and is not easily broken, thus meeting the clinical needs for non-invasive lithotripsy of urinary tract stones.

The invention relates to a device for dynamically adapting sealing of organs or body cavities, by particularly rapid movement of a sealing balloon element from an extracorporeal reservoir or extracorporeal source to a filling medium, in the case of dynamic sealing of the trachea, preferably in the diameter, a residual shaping of the balloon-like membrane body over the diameter of the trachea, i.e. a balloon-like membrane body which is larger than the diameter of the trachea, seals against the inner wall of the trachea with as constant a pressure as possible, compensates for fluctuations in the volume of the balloon caused by fluctuations in the intrathoracic pressure associated with respiratory mechanics by delivering volume from an extracorporeal reservoir or extracorporeal source with as short a time delay as possible, and at all times maintains the sealing of the tracheal secretions from the balloon. The above-mentioned solution is achieved by a sufficiently large delivery line to the inner lumen of the balloon filling medium of the cuff, in which delivery line steps, gaps or burrs are avoided in order to achieve a minimization of the volume flow towards the balloon, which is essential for the as fast as possible stabilization of the filling volume in the balloon.

A device to indicate entry of a needle into a body cavity, duct, or vessel of a human or non-human animal has a pressure sensor configured to be in fluid communication with a needle bore of the needle in use, and a selectively activated indicator. The device is configured to activate the indicator while pressure acting on the pressure sensor is at or above a minimum pressure threshold, wherein the minimum pressure threshold is about 25 cmH2O.

The present invention provides a pneumoperitoneum maintenance device that facilitates the retention of air-filled material within a body cavity. [Solution] According to various embodiments, a probe can be inserted into a body cavity to perform a diagnostic intervention, a therapeutic intervention, or both. The probe can be inserted through a naturally occurring or artificial, intentional, or accidental body opening. The body opening can form a seal surrounding the probe, thus effectively holding the insufflation device within the body cavity and allowing the operator to perform the intervention. However, there may be leakage of the insufflated material. The insufflation holding device is configured to contact and form an effective seal adjacent to the body opening, providing a passage for introducing the probe into the body cavity, thus enabling a diagnostic or therapeutic intervention, or both.

The trocar assembly comprises a head, a long tubular structure having an open distal end and an open proximal end, a fixed cutting component combining a large cutter with two sharp lateral blades and a centrally located non-cutting soft end extending through the open distal end of the tubular structure, and a movable cutter safety case configured to extend through the open distal end of the tubular structure to cover the fixed cutting component and to retract from the open distal end to expose the fixed cutting component. When pressure is applied proximal to the cutter safety case, a large incision is formed in the fascia, the abdominal wall is penetrated, the reaction pressure from the abdominal wall is released, and the body cavity is safely reached.

A device for indicating entry of a needle into a body cavity, a conduit or a blood vessel of a human or non-human animal has a pressure sensor configured, in use, to be in fluid communication with a pinhole of the needle; and a selectively activated indicator. The device is configured to activate the indicator when a pressure acting on the pressure sensor reaches or is above a minimum pressure threshold, where the minimum pressure threshold is about 25 cmH2O.

The invention discloses a body cavity bleeding detection method and device, and the method comprises the steps: obtaining an ultrasonic effective region of an ultrasonic image, and obtaining the physical length and pixel length of a center line of the ultrasonic effective region; acquiring a bleeding area of the ultrasonic image; acquiring an overlapping area of the ultrasonic effective area and the bleeding area, and acquiring a minimum inscribed rectangular frame of the overlapping area; the length of the upper boundary of the minimum inscribed rectangular frame serves as the pixel value of the bleeding depth, and the physical value of the bleeding depth is calculated based on the ratio of the physical length of the center line of the ultrasonic effective area to the pixel length; calculating a weighted average value of the physical values of the bleeding depths based on the physical values of the bleeding depths of the ultrasonic images under different breathing phases and the weights corresponding to the breathing phases; the amount of bleeding is calculated based on a weighted average of the bleeding depth physical values. According to the body cavity bleeding detection method and device, the bleeding amount is accurately calculated, and the technical problem that in the prior art, the bleeding amount detection accuracy is low is solved.

The present invention provides a biological information acquisition device or method for acquiring electrocardiogram information and blood flow-related information that can acquire biological information without reducing the accuracy of intestinal measurements and without ensuring the reproducibility of measurement values, regardless of the type of stool or foreign object being measured. [Solution] A biological information acquisition device comprising a measuring unit, a processing unit for performing calculations on data obtained by measurement, and an output unit for outputting the calculation data from the processing unit as a signal, wherein the measuring unit is provided with an optical sensor and a temperature sensor arranged close to each other in an installation area in a specific circumferential direction of the flexible shaft, and a strip-shaped or cap-shaped cleaning cover is provided on the shaft head of the flexible shaft, excluding the specific circumferential direction, for cleaning by contacting the inner wall of the body cavity.