30 results about "Gastric banding" patented technology

Methods and devices for treating obesity by combining known bariatric surgeries with a method for disrupting the vagal nerve. The method for disrupting the vagal nerve comprises use of a high energy delivery device which is positioned within the esophagus to deliver transesophageal energy to interrupt the function of one or both branches of the vagal nerves. Combination of this method with known methods, such as gastric bypass and gastric banding, may increase weight loss by the patient in comparison to a single treatment on its own. In addition, methods and devices for disposing a restrictive structure such as a mesh around a selected segment of the gastrointestinal tract prevents enlargement of the segment.

A port, which may be used with a gastric banding assembly, having a septum therein that is subjected to multi-directional compression forces to aid in sealing imperfections caused by multiple needle sticks. Multi-directional compression forces, including axial compression and radial compression, may be created by providing a tapered septum. Such multi-directional compression forces may also be created by providing a tapered lead-in for inserting a septum into a port body.

A remotely controllable gastric banding device (10) for placement around the stomach of a patient for the treatment of obesity. The device (10) comprises a gastric band (10) having an inflatable chamber (16) for adjusting the inner circumference of the band (10), a pressurized reservoir (20) with a valve (31) for providing fluid to inflate the inflation chamber (16), a valve (32) for releasing fluid from the inflatable chamber (16), and a controller (41) for controlling the valves (31, 32). The controller (41) is remotely controllable from outside the patient.

A fatigue-resistant inflatable gastric banding device suitable for laparoscopic placement around the stomach of a patient for the treatment of obesity and a method for such treatment are disclosed. The device includes a gastric band having a chambered inflatable member, substantially coextensive with an inner stomach facing surface of the band, that does not crease, wrinkle or fold when adjusted, so as to present a substantially smooth contour along the inner circumference, and to avoid fatigue or failure of the member itself. A gastric band having multiple inflatable compartments or chambers, which may be inflated together or individually is also disclosed.

A transdermally actuated gastric banding assembly is provided which includes an adjustable gastric band, a drive assembly and a transmission assembly positioned between the driver assembly and the adjustable gastric band. The drive assembly includes an internal component configured to be mounted within the body of the patient and an external component configured to operate transdermally so as to affect movement of the internal component. At least one of the internal and external components includes a magnetized member. A proximal end of the transmission assembly is connected to the internal component. A distal end of the transmission assembly is connected to a movable portion of the adjustable gastric band. In one embodiment, the internal component is mounted for rotational movement. In a further embodiment, at least one of the internal component and external component includes a plurality of magnetized members situated asymmetrically about a circumference of the at least one internal and external component.

A fatigue-resistant inflatable gastric banding device suitable for laparoscopic placement around the stomach of a patient for the treatment of obesity and a method for such treatment are disclosed. The device includes a gastric band having a chambered inflatable member, substantially coextensive with an inner stomach facing surface of the band, that does not crease, wrinkle or fold when adjusted, so as to present a substantially smooth contour along the inner circumference, and to avoid fatigue or failure of the member itself. A gastric band having multiple inflatable compartments or chambers, which may be inflated together or individually is also disclosed.

A gastric banding system is provided which generally includes a gastric band and an active agent, for example, a metabolic agent or satiety inducing agent. The band may be structured to contain the agent and permit controlled release of the agent to the patient while the band is positioned around the stomach. Methods for treating obesity are also provided which include positioning a gastric band on the stomach of a patient and administering a satiety inducing agent to the patient while the gastric band is positioned on the stomach.

A device for treating obesity comprises a band part (1), which can be placed annularly about the stomach and includes a closure means (2, 3) for closing the gastric band after it has been placed annularly about the stomach, and an enveloping part (18) for enveloping and supporting a stomach region proximal with respect to the applied band part (1). The band part (1) and the enveloping part (18), secured in position on the band part (1) and laterally projecting from it, are implemented as a unit prefabricated by the manufacturer.

Gastric banding devices, and drive systems designed to operate gastric banding devices, are disclosed. The gastric banding devices and drive systems intend to increase performance, durability, and simplicity over known gastric banding systems. Embodiments include transmission systems configured to output a variable force. Embodiments also include banding structures biased to apply a constrictive force to a patient's stomach. Supporting, or skeletal, structures are also disclosed. Various drive systems designed to improve power efficiency are also disclosed.

An implantable device used in a gastric band system includes an access port, a tube coupled to the access port, and a shielding device covering a portion of the tube. The shielding device is positioned adjacent to the access port and covers the end of the tube coupled to the access port. The shielding device is made from a puncture resistant material, to protect the tube from puncture by a misplaced syringe needle inserted by a physician.

An implantable system comprises a housing that includes a flexible reservoir. The flexible reservoir is coupled to an inflatable portion of a gastric band via a fluid inlet / outlet. The flexible reservoir contains a fluid and has an expanded configuration and a contracted configuration. An access port may be coupled to the flexible reservoir and / or the gastric band to facilitate filling and draining the reservoir and / or the gastric band. A movable wall is slidably positioned around the flexible reservoir to move the flexible reservoir between the expanded configuration and the contracted configuration to move the fluid into and out of the inflatable portion of the gastric band. A driving mechanism is positioned around the movable wall and is capable of changing the size of the movable wall to compress or expand the flexible reservoir. A motor, coupled to the driving mechanism, may actuate the driving mechanism.

A power management system provides wireless power to operate components of a remotely adjustable gastric banding system. The power management system comprises an external power component transmitting power, and an implantable power management component receiving power and converting the power for use in powering one or more components of the remotely adjustable gastric banding system, such as a pump. The internal power management component and the external power component may be tunable. By utilizing the power management system, implantable batteries may be eliminated.

The invention relates to a combined internal fixator for fixing laparoscopic gastric banding. The combined internal fixator is characterized by comprising a T-shaped bone fracture plate, a bone fracture plate for posterior acetabular wall dissection, a locking combined screw, a minitype screw and a fastening screw, wherein the T-shaped bone fracture plate and the bone fracture plate for posterior acetabular wall dissection are fixed by virtue of the locking combined screw; the longitudinal section of the T-shaped bone fracture plate is provided with a locking combined hole; multiple minitype screw holes are uniformly distributed in the transverse section of the T-shaped bone fracture plate; the minitype screw passes through the minitype screw holes so as to fix the T-shaped bone fracture plate to a skeleton; multiple holes are uniformly distributed in the bone fracture plate for posterior acetabular wall dissection, the hole at the middle of the bone fracture plate for posterior acetabular wall dissection is a locking combined hole, the holes at two ends of the bone fracture plate for posterior acetabular wall dissection are fixing holes, and the fastening screw passes through the fixing holes as to fix the bone fracture plate for posterior acetabular wall dissection to the skeleton. The combined internal fixator is unlikely to slide, is capable of adjusting the structure as required and is good in fixation effect.

Generally described herein are apparatus, systems and methods related to gastric bands which provide increased compliance to reduce food obstructions and / or reduces over restriction causing symptoms such as gastric enlargement and pouch dilatation. In one embodiment, a dual ringed reservoir band or inflatable portion is provided. In one embodiment, an additional ring or a middle pouch may be added to the dual ringed reservoir band. The addition of an additional ring or middle pouch may further increase band compliance resulting in even fewer food obstructions. In another embodiment, one or more funnels can also be implemented into a gastric banding system to induce satiety and / or for guiding a bolus through the gastric band.

A motorized gastric ring or “AGM” including a motor acting on a diameter of the ring and actuated by induction toward an integrated receiving antenna from at least one outer transmitting antenna, wherein the ring includes at least one receiving antenna, the at least one antenna being disoriented relative to a plane extending through the gastric ring, and integrated electronics adapted to substantially optimally use energy received.

Generally described herein are apparatus, systems and methods related to a novel esophageal device implantable in the patient's body and designed to replicate the restrictive and satiety mechanism associated with gastric banding systems known in the art. The device can be a compliant and tubular-shaped and fixated within the gastro-esophageal lumen using tissue anchors.

The invention provides a gastric band of gastric banding surgery. The gastric band comprises a strap, wherein a clamping portion is formed at one end of the strap, a clamping part corresponding to the clamping portion is arranged at the other end of the strap, and the clamping portion and the clamping part are fixed mutually when the stomach is surrounded by the strap; a filling bag is arranged on the inner ring surface of the strap; a protective saddle corresponding to the filling bag axially extends out of the side end of the strap. When gastric band folding surgery is carried out, the stomach is folded to form a large stomach bag and a folded portion; when sleeve-shaped resection surgery of the stomach is carried out, part of the stomach is removed, so that a thin sleeve-shaped stomach is formed, and an incision of the stomach is sewed; the filling bag wraps a position below the joint of the stomach and the esophagus correspondingly by means of the strap, moreover, the protective saddle wraps the folded portion or the incision correspondingly, so that the situation that the upper end of the folded portion or the incision expands and bulges to cause complications because a patient eats too much food after the surgery can be prevented, and meanwhile swelling of the stomach can be prevented from causing cracking of the folded portion of the incision. The gastric band can effectively enhance surgery safety, promote weight reduction efficiency, reduce the frequency of therapeutic duplication, and reduce the generation probability of complications.

A gastric band for laparoscopic gastric banding includes a band having a latch portion and a latch element which is fixed to the latch portion when the band is encircled. A filler bag is disposed on the inner circumferential surface of the band. A protecting saddle extends axially from the lateral end of the band and is located corresponding to the filler bag. For gastric band plicaton, the stomach is plicated to form a large gastric pouch and a plicated portion. For laparoscopic sleeve gastrectomy, a part of the stomach is removed to form the stomach to be a small sleeve shape, and the incision location is sewed. The filler bag is covered below the connecting position of the patient's stomach and esophagus by the band, and the protecting saddle is covered onto the plicated portion or incision location to prevent the patient from overeating.

A system for measuring the size of a gastric lumen includes a gastric banding device, an antenna positioned outside of the patient's body, and a receiver in operative communication with the antenna. The banding device comprises two orthogonal ultrasonic transceiver modules, a microprocessor, and a transmitter in electrical communication with the microprocessor. The microprocessor is in operative communication with each of the two transceiver modules. The transmitter transmits signals to a receiver positioned outside of a patient's body. Another system for measuring the size of a gastric lumen includes a gastric banding device having a first coiled conductor. The system further comprises a circuit external to the banding device, the circuit comprising a second coiled conductor. The circuit further comprises a tunable frequency generator and a spectrum analyzer, the circuit being tunable to allow a resonant frequency.

The invention discloses a gastric banding and gastrointestinal electrical stimulation combined device for treating obesity. The gastric banding and gastrointestinal electrical stimulation combined device comprises a gastric banding assembly and a gastrointestinal electrical stimulation assembly, the gastric banding assembly comprises a gastric band, a water injection catheter and a water injector, the gastric band is connected with the water injector through a water injection catheter, the gastrointestinal electrical stimulation assembly comprises gastrointestinal sensors, stimulating electrodes and a stimulator, and the gastrointestinal sensors and the stimulating electrodes are connected with the stimulator respectively. The gastric band is wound on the upper portion of the stomach, and the placed gastric band is connected to the water injection catheter and the water injector; after the gastric band is placed on a peritoneoscope, the three pairs of gastrointestinal sensors are placed in the greater curvature, the lesser curvature and the duodenum respectively, and the two pairs of bipolar electrodes are embedded to the lesser curvature and the duodenal bulb respectively. According to the gastric banding and gastrointestinal electrical stimulation combined device for treating obesity, food-intake of a patient is limited by reducing the receptivity of the stomach, the purpose of effectively reducing weight is achieved, and the gastric banding and gastrointestinal electrical stimulation combined device is simple, safe, economical and capable of reducing weight and healing certain obesity complications more effectively and has reversibility.

Generally described herein are apparatus, systems and methods related to a novel esophageal device implantable in the patient's body and designed to replicate the restrictive and satiety mechanism associated with gastric banding systems known in the art. The device can be a compliant and tubular-shaped and fixated within the gastro-esophageal lumen using tissue anchors.

An improved fluid port for use in an adjustable gastric banding system that can be laparoscopically-implanted around the upper stomach of an obese patient as part of a procedure to help in weight reduction. The improved fluid port is coupled to a conventional constriction collar of the banding system by way of bio-compatible fluid tubing. The fluid port includes a rigid liner having a needle cannula receiving fluid reservoir at one end thereof at which fluid is added to or withdrawn from the constriction collar and a reservoir extension at the opposite end to be mated to the fluid tubing. The fluid reservoir and the reservoir extension are aligned with one another at an angle so as to be oriented following implantation (e.g., below the xiphoid bone where layers of fat and muscle are minimal) to be quickly and easily located by palpating the patient's skin at the bottom of the sternum immediately below the xyphoid process. A stress relief collar surrounds the connection of the reservoir extension of the inner liner to the fluid tubing so as to reduce fatigue and avoid a possible fracture, whereby to enhance the reliability of the fluid port.

The invention relates to a non-inflatable gastric band (1) including two end areas (2, 3) and an intermediate portion (4). The inner surface (I) of the band (1) is intended to contact the stomach. The end areas (2, 3) are provided with complementary closing means (5, 6) selected from notches (5) and locking loops (6) that are mutually engageable so as to ensure that the band (1) is locked in a closed position. The end area (2) has at least one notch (5) and is intended to be inserted through at least one locking loop (6) placed on the outer surface of the end area (3) up to a locked closed position, wherein at least one notch (5) is moved beyond a locking loop (6). The end area (3) also includes a guide loop (7).

Generally described herein are apparatus, systems and methods related to gastric bands which provide increased compliance to reduce food obstructions and / or reduces over restriction causing symptoms such as gastric enlargement and pouch dilatation. In one embodiment, a dual ringed reservoir band or inflatable portion is provided. In one embodiment, an additional ring or a middle pouch may be added to the dual ringed reservoir band. The addition of an additional ring or middle pouch may further increase band compliance resulting in even fewer food obstructions. In another embodiment, one or more funnels can also be implemented into a gastric banding system to induce satiety and / or for guiding a bolus through the gastric band.