105 results about "Heart cavity" patented technology

An apparatus for removing body fluids from a body cavity by suction, such as a thorax, gastric or any other human body cavity or a wound, comprises means (9) to increase the pressure difference between a pressure in a drainage lumen (3) and a pressure in the atmosphere when an auxiliary lumen (5) is open. The apparatus enables removal of clots or other plugs of the catheter and drainage tube in an efficient and not patient disturbing way.

An apparatus for removing body fluids from a body cavity by suction, such as a thorax, gastric or any other human body cavity or a wound, comprises means (9) to increase the pressure difference between a pressure in a drainage lumen (3) and a pressure in the atmosphere when an auxiliary lumen (5) is open. The apparatus enables removal of clots or other plugs of the catheter and drainage tube in an efficient and not patient disturbing way.

The present invention discloses a capsular endoscope device with an orientation / release mechanism. The capsular endoscope device of the present invention has a casing with the front end thereof having a hose, and the front end of the hose has a capsular-endoscope control device, which a capsular endoscope can be attached to. A deflection control device, which is installed to the casing, is used to deflect the capsular-endoscope control device so that the capsular endoscope will be moved to have an elevation angle. A rotation / release control device, which is installed inside the casing, is used to rotate the capsular-endoscope control device so that the capsular endoscope will be rotated also. The rotation / release control device can also release the capsular endoscope from the capsular-endoscope control device. Therefore, the capsular endoscope device with an orientation / release mechanism proposed by the present invention can enable the user to control the orientation of the camera lens of the capsular endoscope to fully inspect the tissue inside a human body cavity.

The present invention relates to a space form detection device of fine-long flexible bar and its detection method. Said device is composed of fine-long flexible bar, fiber-optic grating sensor array, fiber-optic grating modulator-demodulator, local area network router, data acquisition and data processing module and display equipment. The space form detection method of fine-long flexible bar includes the following steps: utilizing a group of grating array formed from four optical fibers arranged on the fine-long flexible bar, utilizing scale factor between the off-line labeled curvature and wavelength and utilizing fiber-optic grating modulator and demodulator to measure wavelengths of 20 raster points in five discrete points of fine-long flexible bar in the space so as to obtain the space curvature size and direction of discrete point position, then utilizing data processing module to reconstruct the form of said fine-long flexible bar in space. Said device can be used for making real-time tracking detection of human body cavity channel and fine-small vessel forms in the therapeutic process.

A kit for penetrating the cardiac septum and for the placement of a trans-septal device, in particular of a stimulation probe, in a left heart cavity. This kit includes a penetration guide (16), a handling stylet, a piercing stylet (38) and a guiding stylet (56). The penetration guide (16) comprises a probe body with a flexible hollow sheath (22) successively receiving these stylets, and a probe-head (18, 24) having an extendable helicoid screw (20) for anchoring to the wall of the septum (10). The piercing stylet (38) presents a sharp distal extremity (44) emerging from the frontal face, through the anchor (20), over a distance at least equal to the local thickness of the septum (10), so as to traverse through the septum. A guiding stylet will be then introduced into the sheath to form, after withdrawal of the penetration guide (16), an axial guide traversing the septum, for the introduction therethrough of a trans-septal device.

The invention belongs to the field of medical devices, and relates to a medical device for recovering targeted components of a cavity content. The device recovers the targeted components of the human body cavity content in vitro. The device can be used for greatly preparing a fecal bacterium solution with parasitic ova removed to support a preparation procedure of standardized fecal bacterium transplantation, used for greatly collecting the parasitic ova in a fecal suspension to increase a positive detection rate of the parasitic ova, used for collecting deslagged secretions in intestine and stomach cavities by an endoscope to meet requirements of checking and diagnosis, used for collecting lavage liquid in a trachea and removing slag by the endoscope to meet requirements of a hormone test and cytological examination, and used for collecting liquid of biliary and pancreatic ducts and a urogenital canal to meet requirements of the checking and the cytological examination. The method solves the practical problems of clinical applications, and has important innovation and an application value.

The invention provides an integrated endoscope operation platform, which comprises an insertion part, a control part and an outer cannula. The insertion part at least comprises an apex part and a mirror body main body. The apex part is connected to the remote end of the mirror body main body. The insertion part is inserted in a human body cavity by taking the apex part as the front end. The control part comprises at least one control handle and a control box. Each control handle corresponds with one operation appliance or an executer and is used for operating and controlling the posture of the operation appliance or the executer. A control knob set is arranged on the control box, wherein at least one control knot can control or keep the posture of the mirror body main body. At least one hole channel allowing the mirror body main body to pass is arranged on the outer cannula. The outer cannula is sleeved on the mirror body main body to constraint the mirror body main body so that the mirror body main body is convenient to access and be close to a focal area in the human body cavity. According to the matching bionic principle of driving double hands by double arms observed at upper part, the integrated endoscope operation platform disclosed by the invention has a wide viewing angle and is flexible to operate and control.

An electronic endoscope has an insert section to be introduced into a human body cavity. A distal portion of the insert section contains a CCD and a printed circuit board to which the CCD is bonded. In the insert section, a cable bundle being a bundle of coaxial cables extends. Each coaxial cable consists of a signal line, insulation surrounding the signal line, a braided wire surrounding the insulation, and an insulating jacket. The cylindrical braided wire is stranded into a single line, and is soldered as a ground line to a ground terminal of the printed circuit board. The signal line is pulled out of the coaxial cable with a length longer than the ground line. The signal line is soldered to an input / output terminal of the printed circuit board with a larger sag than the ground line.

An apparatus and method for detecting a surgical implement retained within a surgically exposed human body cavity, include tagging means adapted to be attached to a surgical implement insertable within a human body cavity and including means for receiving an electromagnetic signal and converting it into electric current (pulses); and means to conduct said current (pulses) to the internal human (or an animal) body where said medical product is used; and means to transmit said electromagnetic signal; and detecting means including reception means for receiving a signal from a tagging means, detector means connected to the reception means for sensing a signal received from a tagging means. The envelope of the induced RF wave is demodulated, thus allowing the voltage at output to vary at a significantly lower frequency. In the event such pulses are sensed, a sensory alert is actuated and corrective action taken.

Techniques are provided that identify and localize on to reentrant and ectopic patterns of electrical activation in the heart wall. These patterns may correspond to atrial fibrillation, ventricular fibrillation, or other heart arrhythmia conditions. The techniques detect these patterns of electrical activity using a multi-lead an intra-cavitary catheter that, along with a controller, is able to track, over a multi-dimensional cubic space, reentrant activity and identify filaments in the heart cavity. The intra-cavitary catheter includes multiple conducting poles positioned in a configuration relative to each other and functioning as either or both sensing and active poles for measuring electrical pathways in the heart wall and over the multi-dimensional space.

A remote ultrasound assessment and intervention system comprises a console having a controller for an ultrasound imaging device attachable to a human skin surface or implantable in a human body cavity. Commands from a remote work station located, for example, at a hospital may remotely control a transducer of the device to move in x, y, z, rotate and tilt directions to remotely assess an injury to a victim, for example, of a war zone injury or terrorist attack. A first responder, who need not be medically trained, may be instructed via a communications link or via a predetermined controller program stored in computer memory to move the imaging device from one location to another on the human skin surface or in a human body cavity. Intervention is also remotely controlled, once an injury is assessed and diagnosed from the hospital work station via an image guided catheter manipulated by the first responder via commands received from the hospital work station.

The invention discloses a dynamic display method and system for heart cavity. The method comprises the following steps: acquiring a plurality of groups of cardiac medical images at equal intervals of a complete heartbeat period which are continuous ones in terms of the time sequence; segmenting the endocardium and the epicardium of the heart cavity in each group of the cardiac medical images to obtain the endocardial contour and the epicardial contour of the heart cavity in each group of the cardiac medical images; according to the endocardial contour and the epicardial contour, constructing three-dimensional models for the heart cavity; adding a plurality of three-dimensional transition models of the heart cavity into the three-dimensional models; and displaying the plurality of three-dimensional models and the plurality of three-dimensional transition models dynamically in the time sequence. The method and system disclosed by the invention realize the non-intruding type four-dimensional dynamic display of a heart cavity. Capable of being operated conveniently, the method and system do not cause any damage to a human body; and in the modeling process, the used data information can be used to calculate the cardiac muscle momentum, endometrial momentum and heart cavity volume and other parameters so as to facilitate the development of various expansion functions.

An exercising set for exercising the pelvic floor muscles of a patient comprises: at least one insert fitted for a human body cavity mechanically interconnected to a force generating means by means of a connector. The human body cavity is selected from: woman's vaginal cavity or any user's inner rectal cavity. The force generating means is adapted to generate a pulling force which is lower than the contraction force of said patient's pelvic floor muscles when applied on the at least one insert to prevent the insert leaving the human body cavity.

This invention provides a method and a system for preventing charring at a laser beam emitting site during treatment or diagnosis using a laser catheter for applying a laser beam. The method is intended to control laser beam irradiation of an apparatus equipped with a laser catheter comprising a laser beam transmission means and a laser beam emitting site used for diagnosis or treatment with the irradiation of the inside of a blood vessel or heart cavity with a laser beam. The method for controlling laser beam irradiation is intended to prevent blood charring at a laser emission site of an apparatus equipped with a laser catheter, and the method comprises a step of controlling a laser beam output in accordance with temporal changes in the intensity of the diffuse reflected light beam by erythrocytes applied to the inside of a blood vessel or heart cavity.

The invention provides an autonomous propulsion type soft robot main body, which comprises a pipe body, wherein the inner part of the pipe body is provided with, in the axial direction, a pipe body cavity and: at least one propulsion structure, wherein the at least one propulsion structure includes a first driving unit, a second driving unit and a third driving unit which are fixedly and uniformlyarranged on the peripheral wall of the pipe body cavity in the axial direction of the pipe body and relative to the axial center of the pipe body cavity, the first driving unit, the second driving unit and the third driving unit can respectively extend or contract in the axial direction of the pipe body; at least two supporting structures, wherein at least one propulsion structure is arranged between every two adjacent supporting structures, the supporting structures are fixedly connected with the propulsion structures and are arranged on the outer peripheral wall of the pipe body cavity, andis used for fixing at least one end of the main body of the autonomous propulsion type soft robot on the cavity, thereby providing support for the main body of the autonomous propulsion type soft robot. The autonomous propulsion type soft robot main body can reduce the harm to the human body cavity and reduce the operation risk.

The invention discloses a photodynamic therapy light guide system applied to the human body cavity. The system is characterized by mainly comprising a columnar fiber (or dot LED lamp), a temperature control casing pipe, a photo-sensitizer conveying casing pipe, and an oxygen conveying casing pipe, wherein the columnar fiber is mainly composed of a fiber interface, a fiber conduction part and a scattering body, the temperature control casing pipe is composed of two communicated cylindrical cavities circulating up and down, the photo-sensitizer conveying casing pipe is composed of a hollow cylindrical cavity, and the oxygen conveying casing pipe is composed of a hollow cylindrical cavity. As a medical instrument, the photodynamic therapy light guide system of the system is of great potential value in the field of clinical inner cavity tumor and inflammation treatment. With the photodynamic therapy light guide system of the system, the problem of biological compatibility between the three elements (laser, photo-sensitizer, and oxygen) of photodynamic therapy and the human body cavity is solved fundamentally, the treatment time is prolonged, and the treatment effect is improved.

An electronic endoscope has a light guide for leading a light and a solid-state image sensor for capturing an image of a human body cavity during illumination. In inspecting the number of broken optical fibers in the light guide, a cap is attached to a distal portion of the electronic endoscope. The cap has a test chart. The solid-state image sensor captures an image of the test chart which is illuminated with the light transmitted through the light guide. A photometric circuit calculates an average luminance value “Y” of the test chart from a chart image signal. A broken fiber number calculator calculates the number “N” of broken optical fibers that satisfies N=M×(1−Y / I). “Y” represents an average luminance value of the test chart. “I” represents an ideal average luminance value when all optical fibers are conducting, and “M” represents the total number of the optical fibers.

The present invention relates to probiotic compositions and kits thereof, comprising live bacteria belonging to the natural flora of the human body cavity such as intestine and vaginal tract, in particular, strains of lactobacillus or bifidobacterium species, and low molecular-weight non-proteinaceous iron chelators capable of lowering the iron concentration over the whole physiological pH-range of relevance to levels that inhibit growth of pathogens, but which allow for the growth of the bacteria of the composition.

The invention discloses an icodextrin biomaterial with antibacterial and bactericidal effects in a perioperative period. The icodextrin biomaterial is a macromolecular biomaterial which has antibacterial, bactericidal and anti-adhesive effects when applied to surgery in the perioperative period. In the aspect of tumor surgery, the icodextrin biomaterial further has the effect of preventing the implantation metastasis caused by tumor cells which scatter on an inner membrane of a human body cavity during the tumor operation. According to the icodextrin biomaterial, water for injection is used as a carrier, and water-soluble icodextrin and iodine are used as main raw materials to prepare an icodextrin complex iodine biopolymer material. The icodextrin iodine biomaterial is prepared from icodextrin iodine and NaCl for regulating osmotic pressure substance or mannitol or glycine through using the water for injection. The icodextrin biomaterial does not have toxicity, irritation or sensitization for a human body, and has good biodegradability; and in clinic, the icodextrin biomaterial has good effects in antibiosis or sterilization, anti-adhesion and control of cancer cell implantation metastasis.

An electronic endoscope has an insert section to be introduced into a human body cavity. A distal portion of the insert section contains a CCD and a printed circuit board to which the CCD is bonded. In the insert section, a cable bundle being a bundle of coaxial cables extends. Each coaxial cable consists of a signal line, insulation surrounding the signal line, a braided wire surrounding the insulation, and an insulating jacket. The cylindrical braided wire is stranded into a single line, and is soldered as a ground line to a ground terminal of the printed circuit board. The signal line is pulled out of the coaxial cable with a length longer than the ground line. The signal line is soldered to an input / output terminal of the printed circuit board with a larger sag than the ground line.

The invention discloses an intracardiac implant, and a device and a method for respectively implanting two interconnected implants into two heart cavities at one time. The intracardiac implant comprises a columnar shell. The shell comprises a side wall, a first end and a second end. A first connecting part is arranged at the first end of the shell and is used for being connected with an implantation device. A hook body is arranged on the side wall of the shell. The hook body comprises a fixed end on the side wall and a free end extending from the fixed end. A clamping structure is formed between the hook body and the side wall. The free end comprises a tip located at the top, and the tip is used for piercing the myocardium. Through the clamping effect between the hook body and the side wall, the intracardiac implant is fixed on the myocardium. According to the intracardiac implant, the cardiac pacemaker, the implantation device and the implantation method of the invention, the intracardiac implant can be better fixed on the myocardium. The implantation process is safer and more convenient. Meanwhile, the lead-free and double-cavity pacing can be realized.

A system and method for detecting a surgical implement retained within a surgically exposed human body cavity, includes a tag adapted to be attached to a surgical implement insertable within a human body cavity, including a means for receiving an electromagnetic signal and converting it into electric signal; and a means to impress said electric signal on the internal human (or an animal) body where said medical product is used; and means to transmit said electromagnetic signal; and a detecting means including reception means for receiving the electric signal from the body and a detector means connected to the reception means for detecting the electric signal. The envelope of the induced RF wave is demodulated, thus allowing the voltage at the output to vary at a significantly lower frequency. In the event such pulses are sensed, a sensory alert is actuated.

A non-contact cardiac mapping method is disclosed that includes: (i) inserting a catheter into a heart cavity having an endocardium surface, the catheter including multiple, spatially distributed electrodes; (ii) measuring signals at the catheter electrodes in response to electrical activity in the heart cavity with the catheter spaced from the endocardium surface; and (iii) determining physiological information at multiple locations of the endocardium surface based on the measured signals and positions of the electrodes with respect to the endocardium surface. Related systems and computer programs are also disclosed.

The invention discloses a left heart assisting device which comprises communicated first pipeline and second pipeline, a blade and a drive device, wherein the first pipeline comprises communicated flow-in part and flow-out part; an angle of 5-45 degrees is formed between the first center vertical line of the flow-in end surface of the flow-in part and the second center vertical line of the flow-out end surface of the flow-out part; the second pipeline comprises a flow-in port, a flow-out port and a lap-joint part between the flow-in port and the flow-out port; the flow-in port is detachably connected with the flow-out end surface; the flow area of the lap-joint part is larger than or equal to the flow area of the flow-out port; the blade is rotatably connected with the inside of the flow-out part; the flow-out part comprises a bottom wall opposite to the flow-out end surface; the blade and the drive device are arranged on the two sides of the bottom wall respectively; and the drive device is used for driving the blade to rotate. The left heart assisting device can be arranged in the heart cavity without damaging the heart structure.

A pacing lead having a lead body comprising a hollow sheath by a first lumen and an extension body extending from the lead body, the extension body having a proximal end and a distal end, the distal end having an active lead region. The extension is traversed by a second lumen, the second lumen communicating with the first lumen of the lead body so as to receive a guide wire for the implantation of the lead. The extension has an outside diameter of between 1 and 3 French. The extension distal end comprises at least one electrically isolated peripheral conductor electrically insulated except for at least two denuded areas on an outer surface of the conductor to contact a wall of a target vein, so as to form a network of stimulation electrodes electrically connected together. The lead body proximal end includes an electrical connection for the peripheral conductor.

The invention discloses a combination set for calculus breaking and removing treatment for calculi in the human body cavity. The set comprises a shell lantern ring and a cylinder coaxially fixed to the inner surface of one end of the shell lantern ring, the cylinder is internally provided with a mechanical channel straight hole and a water spray channel straight hole which are parallel to the axial direction of the cylinder, and a sheath pipe cap is provided with a water spray channel oblique hole which is communicated with the water spray channel straight hole and can spray water to the lateral front of the sheath pipe cap. By designing the combined hole structure mode of the water spray channel straight hole and the water spray channel oblique hole on the sheath pipe cap, water flow entering from an endoscope guide sheath can be sprayed to the front face and the side face of calculus point in front of the sheath pipe cap simultaneously, while broken calculi at the calculus point aresubjected to multi-angle washing to increase the probability that the broken calculi get away from the calculus point, water flow in the front direction and water flow in the side direction of the sheath pipe cap interact with each other to form a vortex, the broken calculi are further separated from the calculus point under the action of the vortex, the separation probability of the broken calculi and the calculus point is greatly increased, and the washing effect of the water flow to the broken calculi is guaranteed.

A pacing lead having a lead body comprising a hollow sheath by a first lumen and an extension body extending from the lead body, the extension body having a proximal end and a distal end, the distal end having an active lead region. The extension is traversed by a second lumen, the second lumen communicating with the first lumen of the lead body so as to receive a guide wire for the implantation of the lead. The extension has an outside diameter of between 1 and 3 French. The extension distal end comprises at least one electrically isolated peripheral conductor electrically insulated except for at least two denuded areas on an outer surface of the conductor to contact a wall of a target vein, so as to form a network of stimulation electrodes electrically connected together. The lead body proximal end includes an electrical connection for the peripheral conductor.

The invention discloses an endoscope display control system based on augmented reality. The system comprises a glasses body. A master controller is mounted on the glasses body, and is connected with a camera. The camera is fixed to a lens base, and the lens base is fixed into a human body cavity. An eyeball-shaped protection cover is arranged on the outer side of the camera. A microprocessor is arranged in the lens base, and is connected with a three-axis driving mechanism. The three-axis driving mechanism is connected with the camera. An eye motion collection module is arranged on the glasses body. The master controller is used for receiving images in the cavities, which are collected by the camera and irradiated by light sources with different colors, performing fusion enhancement on the images, and reconstructing the images subjected to fusion enhancement to acquire three-dimensional deep images. The master controller is connected with a display module. The display module is mounted on the glasses body, and is used for displaying the reconstructed three-dimensional deep images. The system has the advantages that occupied area of an endoscope system is saved, and the system is simple in structure and portable.