57 results about "Antrum" patented technology

The present invention teaches a method and apparatus for physiological modulation, including neural and gastrointestinal modulation, for the purposes of treating several disorders, including obesity, depression, epilepsy, and diabetes. This includes chronically implanted neural and neuromuscular modulators, used to modulate the afferent neurons of the sympathetic nervous system to induce satiety. Furthermore, this includes neuromuscular stimulation of the stomach to effect baseline and intermittent smooth muscle contraction to increase gastric intraluminal pressure, which induces satiety, and stimulate sympathetic afferent fibers, including those in the sympathetic trunk, splanchnic nerves, and greater curvature of the stomach, to augment the perception of satiety.

An implantable stomach prosthesis is provided for surgically replacing or augmenting all or part of the antrum and / or pylorus of a stomach. The prosthesis controls the passage of food from the stomach to the small intestine. The prosthesis may be configured to churn ingested material and release it from the stomach through a prosthetic pyloric valve. At least one expandable member is arranged to be expanded to control the passage of food and / or to mimic the churning action of a patient's stomach. The prosthesis includes an outer support structure, a flexible inner member forming a conduit for the movement of material, and at least one expandable member located between the outer support structure and inner member. An implantable pump system is provided for inflating and deflating the expandable member(s).

Diet evaluation gastric apparatus (18) is provided, which detects when a patient (10) swallows, and detects the type and amount of matter ingested. The apparatus includes electrodes (74, 100) adapted to be coupled to the fundus and antrum of the patient and to measure electrical and mechanical activity therein, and a control unit (90) to analyze such electrical and mechanical activity and optionally apply electrical energy to modify the activity of tissue of the patient.

A catheter for mapping and / or ablating continuous linear or circumferential lesions at the intersection of a generally flat structure, such as the left atrium, and the ostium of generally cavernous regions of the heart, including pulmonary vein and the pulmonary venous antrum, comprises a catheter body with an intermediate section that is connected to a tip assembly by a highly flexible section. The intermediate section has at its distal end a preformed section, e.g., a curve, the intermediate section being deflectable in a direction opposite to the curve. The highly flexible section presets the tip assembly at an off-axis and / or off-plane angles from the preformed section. Accordingly, the preformed section is adapted to sit in the region and the preset angles of the ablation assembly enable contact with surrounding tissue. A high bending modulus enables the flexible section absorb displacement force applied to the ablation assembly, such as when the tip assembly encounters uneven tissue surface, without displacing the curve from the region. The tip assembly can be irrigated as enabled by a plurality of irrigation ports, a coil electrode, and a porous covering to disperse fluid over the outer surface of the tip assembly.

Method and apparatus for treatment of morbid obesity by placement of a series of flow reduction elements in the small intestine to induce satiety are disclosed. The flow reduction elements restrict the movement of partially digested food and reduce the flow rate through the small intestine which causes the emptying of the stomach and the duodenum to occur slower. The flow reduction elements are attached to an elongated tube and are constructed from various shapes and configurations. The flow reduction elements may be inflated with fluid or may be constructed from self-expandable materials. The device is anchored in the antrum of the stomach with an anchoring member. The transoral gastric device can be inserted with a delivery catheter through the working lumen of an endoscope or alongside an endoscope and may be removed with the aid of an endoscope if desired.

The invention relates to an implantable stomach prosthesis for surgically replacing or augmenting all or part of the antrum and / or pylorus of a stomach. The prosthesis controls the passage of food from the stomach to the small intestine. The prosthesis may be configured to chum ingested material and release it from the stomach through a prosthetic pyloric valve. At least one expandable member is arranged to be expanded to control the passage of food and / or to mimic the churning action of a patient's stomach. The prosthesis includes an outer support structure, a flexible inner member forming a conduit for the movement of material, and at least one expandable member located between the outer support structure and inner member. An implantable pump system is provided for inflating and deflating the expandable member(s).

A satiation device is described which includes a sheath or liner extending from the proximal or middle stomach to the distal antrum. Food ingested by the patient passes through the sheath or liner, thereby minimizing contact between the ingested food and the stomach. It is believed that over time, reduced contact between food and the stomach will result in decreased Ghrelin production by the patient and a consequent decrease in appetite. In some embodiments, the satiation device may also include a proximal pouch and / or a distal bypass tube.

The present invention advantageously provides a method and system for cryogenically ablating large areas of tissue within the left atrium. In an exemplary embodiment a cryotherapy device includes a catheter body having a substantially fixed diameter, a proximal end and a distal end; a first lumen for permitting passage of a cooling fluid from the proximal end to the distal end; a second lumen permitting return of the cooling fluid from the distal end to the proximal end; and an ablation element expandable from a first diameter that is substantially the same as the diameter of the catheter body to a second diameter that is at least twice the diameter of the catheter body, the ablation element having a surface portion that conforms to the uneven surface topography of the cardiac tissue. The ablation element can include one or more balloon and / or a flexible element that is deformed by moving the distal end of the catheter toward the proximal end of the catheter. The surface of the balloon can further be shaped by regulation of pressure within the one or more balloons. In an exemplary method a tissue ablation device is provided and tissue in the antrum of the left atrium is ablated with the device. In an exemplary method, only tissue in the antrum is ablated, and the ablation is created by freezing tissue.

An apparatus for treating cardiovascular diseases includes an expandable support member having oppositely disposed proximal and distal end portions and a main body portion between the end portions for positioning in a blood vessel. The proximal end portion of the expandable support member includes a plurality of wing members that extend from the main body portion. Each of the wing members is for engaging at least a portion of an antrum of a cardiac chamber surrounding the blood vessel. At least a portion of the expandable support member is treated with at least one therapeutic agent for eluting into the blood vessel, the cardiac chamber, and / or cardiac tissue. The expandable support member is made of wire-mesh, and at least a portion of the expandable support member may be made of a bioabsorbable material.

The invention relates, generally, to porous absorbent materials which are suitable for packing antrums or other cavities of the human or animal body. More particularly, it relates to hydrophilic biodegradable foams, which may be used, e.g., in the form of a plug or tampon, for instance for controlling bleeding, wound closure, prevent tissue adhesion and / or support tissue regeneration. The invention provides an absorbent foam, suitable for packing antrums or other cavities of the human or animal body, comprising a biodegradable synthetic polymer, which polymer comprises —C(O)—O— groups in the backbone of the polymer, for instance polyurethane and / or polyester units combined with polyethers.

Methods and devices for treating obesity. Pressure is applied to gastric walls in at least one segment of a stomach such that the pressure distends the gastric walls and induces satiety. A hollow capsule can be used to distend the gastric walls. Alternatively, a doughnut-shaped ring may be inflated to an amount sufficient to create intragastric tension and induce satiety. A c-ring including at least one balloon may be placed at a segment of the stomach, where the balloon inflates to a size that creates tension at the segment. A biocompatible material can be injected into the fundus and antrum of the stomach to stiffen the gastric wall to create a fullness feeling.

Diet evaluation gastric apparatus (18) is provided, which detects when a patient (10) swallows, and detects the type and amount of matter ingested. The apparatus includes electrodes (74, 100) adapted to be coupled to the fundus and antrum of the patient and to measure electrical and mechanical activity therein, and a control unit (90) to analyze such electrical and mechanical activity and optionally apply electrical energy to modify the activity of tissue of the patient.

The current invention concerns systems, devices and methods for the ablation of a vessel's wall from the inside, more specifically to implant devices and to the ablation of the wall of one or more pulmonary veins (PV) from the inside, preferably transmural ablation and preferably at the level of the antrum. Hereby, one or more implant devices can be implanted in the vessels and can subsequently be heated by external energy-providing means.

The present invention relates to one kind of Chinese medicine preparation for curing gastropathy radically. The Chinese medicine preparation is prepared with 29 kinds of Chinese medicinal materials, including astragalus root, corydalis tuber, cuttlebone, chicken's gizzard membrane, white atractylodes rhizome, etc. It has obvious curative effect on various kinds of chronic gastritis, antrum gastritis, digestive track ulcer, etc and no toxic side effect, and can prevent gastric cancer and gastric mucosa pathology.

A method of controlling obesity by injecting bio-compatible bulking material into the pyloric sphincter area of the stomach. The injection of this material bulks the pyloric sphincter, retarding stomach emptying and producing a feeling of satiation in the patient. The method may be supplemental and augmented by inducing flacid paralysis of the stomach by injecting botulinum toxin into the muscle tissue of the antrum or fundus of the stomach.

A gastrointestinal implant device 600 comprises a sleeve 601 for extending into the duodenum and an artificial valve 602 for placement at the pylorus 603 to control flow from the stomach into the duodenal sleeve 601. A support structure for the valve comprises a scaffold 605 to which the valve 602 is mounted and a luminal prosthesis 606. The luminal prosthesis 606 comprises a proximal flare 620 for location at the antrum of the pylorus, a bulbous region 621, and a scaffold receiving region 606.

A method of controlling obesity by injecting bio-compatible bulking material into the pyloric sphincter area of the stomach. The injection of this material bulks the pyloric sphincter, retarding stomach emptying and producing a feeling of satiation in the patient. The method may be supplemental and augmented by inducing flaccid paralysis of the stomach by injecting botulinum toxin into the muscle tissue of the antrum or fundus of the stomach.

The invention relates to a system for predicting the number of oocytes obtained during ovarian stimulation of an object receiving a standard GnRH antagonist solution for ovulation induction. The system comprises a data acquisition module used for obtaining data of the anti-mullerian hormone (AMH) level, basal follicle stimulating hormone (FSH) level and antrum follicle count (AFC) of the object and a module used for predicting the number of the oocytes obtained during the ovarian stimulation and calculating the information obtained in the data acquisition module to calculate the number of theoocytes (NROs) obtained by the object.

The present invention advantageously provides a method and system for cryogenically ablating large areas of tissue within the left atrium. In an exemplary embodiment a cryotherapy device includes a catheter body having a substantially fixed diameter, a proximal end and a distal end; a first lumen for permitting passage of a cooling fluid from the proximal end to the distal end; a second lumen permitting return of the cooling fluid from the distal end to the proximal end; and an ablation element expandable from a first diameter that is substantially the same as the diameter of the catheter body to a second diameter that is at least twice the diameter of the catheter body, the ablation element having a surface portion that conforms to the uneven surface topography of the cardiac tissue. The ablation element can include one or more balloon and / or a flexible element that is deformed by moving the distal end of the catheter toward the proximal end of the catheter. The surface of the balloon can further be shaped by regulation of pressure within the one or more balloons. In an exemplary method a tissue ablation device is provided and tissue in the antrum of the left atrium is ablated with the device. In an exemplary method, only tissue in the antrum is ablated, and the ablation is created by freezing tissue.

The invention relates to a hard lens calculus removing device, which is of a double-sheath structure. A conical guide head is arranged at a far end of an inner sheath, can enable an outer sheath to be smoothly guided into a cavity (including inner and outer bile duct antrums of a liver, a bile duct antrum, a cholecyst antrum and a renal pelvis) and avoids damage of the outer sheath on circumferential tissues and a fistula wall. Elastic and tensile tissues are arranged around fistula, a lumen and an incision, the fistula and the lumen are in half-closing state when being not filled by liquid, and the diameters of the fistula and the lumen are smaller than the diameter of the outer sheath, thus tissues by the side the incision, the fistula wall, the lumen or a cyst wall surround and extrude the outer sheath so as to realize a seal effect and avoid overflow of internal liquid in the lumen and a cyst antrum. After the hard lens calculus removing device is guided into the lumen, the inner sheath is pulled out and the outer sheath is reserved. A Y-shaped joint is arranged on the outer sheath, and calculus surged along with water is conveniently discharged into a collection bag through a side hole of the Y-shaped joint. Due to a protection function of the outer sheath, various hard endoscopes, including oledochoscopes, hard lenses or percutaneous nephroscope set, and ureteroscope are indirectly in contact with soft tissues by the sides of a kidney fistula wall and a cholecyst incision, thus the damage on incision circumferential tissues, the fistula wall and a lumen wall due to repeated insertion and extraction of the endoscopes and devices is basically avoided, and the safety of an operation is improved.

The invention discloses a device for expanding natural aditus antrum of nasal sinus in nasal sinus operation, which belongs to the field of medicinal appliance and particularly relates to a catheter having expanding and sucking functions for nasal sinus surgical operation. The catheter is made of hard silica gel material and is an expansion and suction catheter which comprises an air bag, an inflating tube and a suction tube and is applicable to nasal sinus operation in many aspects, wherein the inflating tube is attached on the side wall of the suction tube, and the air bag with scale marks is positioned on the head side of the catheter. An operation handle is arranged on the tail side of the catheter. The catheter can be positioned under a nasal endoscopic and directly inserted into the natural aditus antrum of nasal sinus. The structure of the catheter is simple and the operation of the catheter is convenient. The catheter can accurately expand the aditus antrum of nasal sinus and lays a foundation for the implementation of the operation.

The invention relates to the field of making mould, and is a method of using industrial wax as material to make simple mould. The method includes following steps: 1. Prepare the material. Buy industrial wax, and melt it in special case. Then make the case size and cubage of which should meet the demand of making product and pour the melted wax into it, cool it naturally to get a raw product.2. Make simple mould. Adjust the room temperature to 20+ / -5 DEG C. Make master module and sheet iron case according to the master module. Weld the upper sizing cases and the under sizing cases and multi-opening case. Then weld butterfly screw to tighten them. Place the sheet iron case and the wax baseboard in opposite places and begin to mould. Open the mould, get out the master module and mend the antrum. The invention just needs a master module instead of drawing blueprint, so it cut down the cost. The machining process is simple and saves time. The mould has handsome sculpt and naturally made antrum.

This invention discloses a method for producing wine by fermentation in bamboo cavity. The method comprises: filling fermentation liquid containing lees into the bamboo cavity, sealing, and fermenting to obtain bamboo wine. The method uses nutrients and water in bamboo as the fermentation raw materials to produce bamboo wine, which has such advantages as high quality, good taste, low cost, high nutrition and good health care.

The invention relates, generally, to porous absorbent materials which are suitable for packing antrums or other cavities of the human or animal body. More particularly, it relates to hydrophilic biodegradable foams, which may be used e.g. in the form of a plug or tampon, for instance for controlling bleeding, wound closure, prevent tissue adhesion and / or support tissue regeneration. The invention provides an absorbent foam, suitable for packing antrums or other cavities of the human or animal body, comprising a biodegradable synthetic polymer, which polymer preferably comprises —C(O)—O— groups in the backbone of the polymer, for instance polyurethane and / or polyester units combined with polyethers.

The present invention relates to a novel hearing aid with a casing which is suitable for being positioned in the antrum auris of user and is attached to an elongated element, wherein the elongated element is suitable for being positioned in the ala auris outside the antrum auris of user. The elongated element is suitable for the detachable interlinkage of hearing aid and accommodating a signal processor and a receiver. The signal processor is used for processing the audio signal to the audio signal for compensating the hearing loss. The receiver is connected with the output of signal processor for converting the processed audio signal for compensating to the sound signal.

The invention relates to a compound digestive enzyme positioning and releasing capsule prescription and a preparation process thereof. The capsule consists of three micro-tablets which respectively release medicine in the upside of the stomach, in the antrum of the stomach, and in the intestines thereof; during preparation, the main medicine and the auxiliary medicine contained in the tablets are pressed into three different tablets, the respective tablets are covered with film coatings released under different pH conditions so as to achieve the purpose of releasing in different sites. Compared with the prior similar products, the compound digestive enzyme preparation of the invention has better positioning and releasing effect, as well as more comprehensive and higher enzyme vigor.

Methods, systems, and devices for providing a denervating energy treatment to the tissue of the pulmonary vein and antrum region of the left atrium utilizing a catheter-based structure having one or more energy delivery surfaces. In some instances energy delivery surfaces are arranged with a circumferential and axial offset relative to one another. A pattern of individual lesions loosely approximating a helix, or other staggered pattern, or roughly circumferential are placed so as to provide a pattern which covers substantially the circumference of the treated area while avoiding stenosis. Denervating energy is applied by modulation of the energy delivery surfaces using an energy source integrated with a controller and control algorithm. In some instances feedback is used in a control algorithm for energy modulation. Energy sources are radiofrequency, ultrasound, and cryogenic.