25results about "Fallopian occluders" patented technology

A reversible occlusion device configured for being introduced inside a lumen to selectively occlude it, the reversible occlusion device includes a docking unit configured for being docked in the lumen; the docking unit has an upstream end and a downstream end associated with an upstream portion and a downstream portion of the lumen respectively, and an inner volume extending between the ends; the reversible occlusion device further includes at least one restricting element configured for transitioning between a first, closed position, in which it obstructs passage of material across the volume, and a second, open position, in which it allows passage of material across the volume; in both the closed position and the open position, a peripheral portion of the restricting element is in contact with the docking unit; said restricting element is a membrane with a peripheral portion thicker than its central portion.

The present invention relates to a comprehensive surgical clip for improving vasectomy and an operating method thereof, comprising a comprehensive surgical clip; the comprehensive surgical clip comprises two clamps for clamping and fixing the two ends of the vas deferens, the two clamps being connected to the same scissors structure and being synchronously opened and closed by the scissors structure; and further comprising: a syringe, which is obliquely and slidably arranged on the comprehensive surgical clip and is used for injecting a mixed liquid into the vas deferens and promoting the discharge of semen. The present invention has a compact and reasonable structure and is easy to operate. By adopting a special surgical clip and a specific operating technique, work efficiency is improved. At the same time, on the basis of traditional vasectomy surgery, a special flushing technology is added to improve the efficiency of residual semen discharge, greatly shortening the patient's postoperative contraception time compared with traditional surgery, and can also judge the patency of the vas deferens according to the color of the discharged semen, providing preoperative evaluation guidance for some patients who need to restore fertility and undergo vasectomy.

The present invention introduces a groundbreaking solution in the field of male contraception-a reversible male birth control implant device. The device offers enhanced flexibility in family planning by controlling the amount of sperm ejaculated. It consists of a tubular component surgically inserted into each severed vas deferens, with a wireless receiver attached. The wireless receiver receives external wireless signals and enables the device to switch between a state that permits the flow of sperm and a state that impedes it. The device also features an outlet for the safe elimination of obstructed sperm. The use of biocompatible materials and compatibility with medical imaging devices, such as MRI, ensures safety and usability. This innovative device empowers individuals with convenient and discreet control over their fertility, revolutionizing male contraception and opening new possibilities in reproductive health.

Methods and systems are provided for trans-cervical delivery of agents for various purposes, including contraception and tubal patency evaluation. The trans-cervical delivery system comprises at least one port: a tubular shaft coupled to the port, the tubular shaft including at least one hollow channel traversing an interior length of the tubular shaft; and an agent delivery end coupled to the tubular shaft, the agent delivery end including at least one flexible catheter and a plug. The trans-cervical delivery system of the present disclosure integrates a pre-formed wire frame into the agent delivery end that enables self-positioning of the catheter and assists in gaining precise access to the cornual regions of a uterus by an operator. In one example, the trans-cervical delivery system may be utilized for selective delivery of a foam agent to fallopian tubes non-surgically.

A male contraception apparatus includes a tube configured for insertion into the seminal duct. The tube has a hollow portion open at both ends. Positioned within the hollow portion is at least one filter. The filter includes a plurality of microchannels that extend through the filter and a plurality of nanospikes formed on one surface.

Disclosed are methods of delivering an agent to the lumen of the vas deferens under guidance of ultrasound imaging. The methods include vas-occlusive contraception in which the vas deferens is non-surgically isolated and an occlusive substance is percutaneously administered into the lumen of the vas deferens under ultrasound. Also disclosed are methods of reversal of vas-occlusive contraception and methods of delivering an agent to the lumen of the vas deferens. Also disclosed are compositions for use in the methods of the invention.

Methods for removing a biomaterial implant and reversing occlusive effects of the biomaterial implant are described. In particular, methods for performing removal of biomaterial implants without damage to a body lumen where the biomaterial was previously implanted are presented. More specifically, methods of reversing an implant within a vas deferens are described.

The invention relates to a device for controlling a flow circulating in the lumen of a male vas deferens, comprising a clamp configured to coaxially grasp an outer wall of the vas deferens and a long, slender element coupled to the clamp, a distal portion of which is adapted to be at least partially inserted into the vas deferens. Said distal portion has a deflection tube adapted to divert said flow out of the vas deferens when an inlet of said deflection tube is aligned with the lumen. Abstract figure: Fig. 1

Implantable tube valve for implanting in a human vessel, comprising a tube, having an inner and outer tube wall extending between two axial tube ends and comprising a valve member, connected to a pivot shaft supported by the tube, with the valve member pivotable between an open position and a closed position and comprising an actuator mechanism, mounted on the outer In tube wall and comprising a pivot member, arranged for driving the pivot shaft from the outer tube wall by an actuation force from the actuator mechanism and comprising at least one biasing element, connected to the pivot member and arranged for preloading the pivot member to bistably bias the valve member towards the open or closed position, wherein the pivot member is substantially curved, having a curvature following a contour of the inner tube wall to limit a lateral extension of the implantable tube valve.

Disclosed herein are exemplary medical devices for controlled delivery of material compositions, particularly occlusive, therapeutic, or diagnostic compositions.

A reversible occlusion device configured for being introduced inside a lumen to selectively occlude it, the reversible occlusion device comprising a docking unit configured for being docked in the lumen; the docking unit has, at least when positioned in the lumen, an upstream end associated with an upstream portion of the lumen, and a downstream end associated with a downstream portion of the lumen, and an inner volume extending between a first opening at the upstream end, and a second opening at the downstream end; the reversible occlusion device further comprises at least one restricting element configured for transitioning, at least once, between a first, closed position, in which it obstructs passage of material across the cavity between the first opening and the second opening, and a second, open position, in which it allows passage of material across the cavity between the first opening and the second opening; in both the closed position and the open position, a peripheral portion of the restricting element is in contact with the docking unit.

A polymer system for forming a hydrogel and a male contraceptive method of reversibly occluding a vas deferens with the hydrogel are provided. The polymer system comprises a water-soluble and at least partially thiolated poly(styrene-co-maleic acid) polymer and a water-soluble cross-linking agent with suitable reactive functional groups at its ends which are configured to crosslink to the thiol groups of the thiolated poly(styrene-co-maleic acid) polymer, when aqueous solutions of the at least partially thiolated poly(styrene-co-maleic acid) polymer and cross-linking agent are combined to form the hydrogel in use. The hydrogel includes dynamic covalent bonds which can be broken with an appropriate solution to dissolve the hydrogel in situ.

Disclosed is a device for treating uterine bleeding, the device comprising a shaft having proximal and distal ends, with one or more lumens therethrough, a deployable sleeve at the distal end and / or an occlusive flange between the proximal and distal ends. The device is useful in a method of treating uterine bleeding comprising inserting the distal end of the device into a patient's uterus, deploying the sleeve, and / or deploying and locking the flange against the cervix, and introducing a treatment fluid through a lumen in the shaft. An example treatment fluid may be a sclerotherapeutic agent or a saline solution.

The application discloses a vas deferens contraceptive device and a preparation method thereof, and relates to the technical field of medical devices. The device comprises a tubular outer wall, the inside of the tubular outer wall is filled with a sperm blocking layer and a mechanical support layer, the sperm blocking structure is a pore structure that can block sperm, and the mechanical support structure is a three-period minimal surface structure. The combination of the two structures can prevent sperm from passing through the vas deferens while ensuring the normal passage of tissue fluid. The device is mainly prepared through three steps of model slice design, ink configuration, 3D printing and device post-processing. Compared with vasectomy, the vas deferens contraceptive device and the preparation method thereof can avoid complications and fertility damage caused by epididymal stasis, and the implantation of the device has a smaller incision than vasectomy and is convenient for processing and manufacturing.

A system for treating a female patient to promote pregnancy comprising a restriction device adapted to postoperatively restrict and release an oviduct of the patient.

A reversible occlusion device configured for being introduced inside a lumen to selectively occlude it, the reversible occlusion device includes a docking unit configured for being docked in the lumen; the docking unit has an upstream end and a downstream end associated with an upstream portion and a downstream portion of the lumen respectively, and an inner volume extending between the ends; the reversible occlusion device further includes at least one restricting element configured for transitioning between a first, closed position, in which it obstructs passage of material across the volume, and a second, open position, in which it allows passage of material across the volume; in both the closed position and the open position, a peripheral portion of the restricting element is in contact with the docking unit; said restricting element is a membrane with a peripheral portion thicker than its central portion.

A system for treating a female patient to promote pregnancy, comprising a restriction device configured to restrict and release a patient's fallopian tubes post-operatively.SOLUTION: The system of the present invention allows eggs from an ovary to be retained in the oviduct to avoid pregnancy. A restriction device is placed over the two oviducts to restrict and release the oviducts, thereby retaining the eggs as described above.SELECTED DRAWING: Figure 1A

Disclosed is an implantable tube valve for implanting in a patient, comprising an implantable tube and a valve member mounted inside the tube and pivotable between an open mode and a closed mode. A biasing element preloads the pivot part on the first side of the pivot axis to bistably bias the valve member towards the open or closed mode. The biasing element comprises a compressible sleeve that is axially compressible for providing a preload force on the pivot part. The valve member comprises an operating surface that is mechanically operable by an external actuator device to move the valve member against the preload force between the open and closed mode.

A system for treating a female patient to promote pregnancy comprising a restriction device adapted to postoperatively restrict and release an oviduct of the patient.

A flexible implantable contraceptive disc device is disclosed which can be inserted inside the female body, such as inside the uterus, is disclosed. The circular device can be bent and inserted into a laparoscopy tube which allows it to be delivered to the appropriate location inside a female subject. The disc has three layers, a central core silicon reservoir containing the active ingredient, such as a contraceptive progesterone, which is sandwiched and encased by an upper and lower porous silicon casings. The casings are porous to the contraceptive, allowing controlled release over a prolonged period of time. The lower casing has a series of micro-hooks around the discs circumference, allowing the disc device to be attached to a desired tissue by rotating the disc such that the hooks engage with the tissue. Such a device is easier to insert, and to remove, than the rod-like rigid plastic T-shape IUDs which are considerably larger, also more expensive to manufacture.

A system for treating a female patient to promote pregnancy comprising a restriction device adapted to postoperatively restrict and release an oviduct of the patient.

The invention relates to a device for controlling a flow circulating in the lumen of a vas deferens of a male individual, comprising a clamp configured to coaxially grip an outer wall of the vas deferens and an elongate element configured to be coupled to the clamp, a distal portion of which is adapted to be at least partially introduced into the vas deferens. Said distal portion comprises a diversion tube adapted to divert said flow out of the vas deferens when an inlet of said diversion tube is aligned with the lumen.

An apparatus for controlling a flow of fluid in a lumen formed by a tissue wall of a patient's vas deference comprises an implantable constriction device for gently constricting (i.e. without substantially hampering the blood circulation in the tissue wall) at least one portion of the tissue wall to influence the flow in the lumen, and a stimulation device for stimulating the wall portion of the tissue wall. A control device controls the stimulation device to stimulate the wall portion, as the constriction device constricts the wall portion, to cause contraction of the wall portion constricted by the constriction device to further influence the flow in the lumen. The apparatus can be used for restricting or stopping the flow in the lumen, or for actively moving the fluid in the lumen, with a low risk of injuring the vas deference.

Embodiments of the disclosure concern devices comprised of resorbable, shape-memory foam configured to allow for healing at a desired location. In particular embodiments, use of the device at the location utilizes the inherent environment at the location to allow expansion of the device, resulting in an improved fit for the device. In specific cases, the device is a vaginal stent configured for use for pediatric or adolescent populations.

An apparatus for controlling a flow of sperms in a uterine tube formed by a uterine tube wall of a patient's uterine tube comprises an implantable constriction device for gently constricting (i.e. without substantially hampering the blood circulation in the uterine tube wall) at least one portion of the uterine tube wall to influence the flow in the uterine tube, and a stimulation device for stimulating the wall portion of the uterine tube wall. A control device controls the stimulation device to stimulate the wall portion, as the constriction device constricts the wall portion, to cause contraction of the wall portion constricted by the constriction device to further influence the flow in the uterine tube. The apparatus can be used for restricting or stopping the flow in the uterine tube, or for actively moving the fluid in the uterine tube, with a low risk of injuring the uterine tube.