80 results about "Salpingostomy" patented technology

The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or a copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has a helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through the resilient structure to the tubal walls.

The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or a copper alloy. The device is anchored within the fallopian tube by imposing a secondary shape on a resilient structure, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. The resilient structure is then restrained by the walls of the fallopian tube, imposing anchoring forces as it tries to resume the secondary shape.

The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or a copper alloy. The device is anchored within the fallopian tube by a lumen-traversing region of the resilient structure which has a helical outer surface, together with a portion of the resilient structure which is biased to form a bent secondary shape, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. Optionally, permanent sterilization is effected by passing a current through the resilient structure to the tubal walls.

Methods and devices for occlusion of the fallopian tubes of a woman. The method involves thermally damaging the lining of the utero-tubal junction with relatively low power, followed by placement of a reticulated foam plug. In one embodiment, vascularized tissue grows into the plug and prevents or discourages formation of scar tissue around the plug. Another embodiment with a relatively small foam pore size encourages formation of a vascularized capsule around the plug. The presence of this vascularized capsule limits the patient's foreign body response, so that the capsule does not constrict around the plug. Also presented is a catheter designed for wounding the epithelial layer of the utero-tubal junction, and a method of using the catheter to form a long yet shallow lesion in the utero-tubal junction.

A device for occluding the fallopian tube comprising a retention member and a mesh material supported by the retention member. The retention member has a first lower profile configuration for delivery and a second expanded configuration for placement within the fallopian tube. The mesh material is configured to block passage of an egg through the tube. The member has a plurality of tube engagement members to secure the retention member to the fallopian tube.

Methods and devices for performing minimally invasive procedures useful for Fallopian tube diagnostics are disclosed. In at least one embodiment, the proximal os of the Fallopian tube is accessed via an intrauterine approach; an introducer catheter is advanced to cannulate and form a fluid tight seal with the proximal os of the Fallopian tube; a second catheter inside the introducer catheter is provided to track the length of the Fallopian tube and out into the abdominal cavity; a balloon at the end of the second catheter is inflated and the second catheter is retracted until the balloon seals the distal os of the Fallopian tube; irrigation is performed substantially over the length of the Fallopian tube; and the irrigation fluid is recovered for cytology or cell analysis.

An intrauterine device for occluding orifices of fallopian tubes includes a resilient body having an elongated member with a first end and a second end. The elongated member further includes a first leg ending with the first end of the elongated member, a second leg ending with the second end of the elongated member and a connection member positioned therebetween. A first orifice plug is secured at the first end of the elongated member and a second orifice plug is secured at the second end of the elongated member. The first and second orifice plugs are shaped and dimensioned to seat at the orifices of the fallopian tubes or within the fallopian tubes as the elongated member spreads outwardly with the first end and second end moving apart.

Methods and devices for performing minimally invasive procedures useful for Fallopian tube diagnostics are disclosed. In at least one embodiment, the proximal os of the Fallopian tube is accessed via an intrauterine approach; an introducer catheter is advanced to cannulate and form a fluid tight seal with the proximal os of the Fallopian tube; a second catheter inside the introducer catheter is provided to track the length of the Fallopian tube and out into the abdominal cavity; a balloon at the end of the second catheter is inflated and the second catheter is retracted until the balloon seals the distal os of the Fallopian tube; irrigation is performed substantially over the length of the Fallopian tube; and the irrigation fluid is recovered for cytology or cell analysis.

A device for occluding the fallopian tube including a retention member and a mesh material supported by the retention member. The retention member has a first lower profile configuration for delivery and a second expanded configuration for placement within the fallopian tube. The mesh material is configured to block passage of an egg through the tube. The member has a plurality of tube engagement members to secure the retention member to the fallopian tube.

The invention discloses a clamp for fallopian tube recanalization under a laparoscope, aiming to solve the technical problem on simply, efficiently and safety completing a hydrotubation test, salpingorrhaphy or an operation for cornual implantation of the fallopian tube under the laparoscope. The clamp for fallopian tube recanalization under the laparoscope is provided with a main tube, the front end of the main tube is connected with an openable clamp blade assembly, the rear end of the main tube is connected with a handle, the main tube is internally provided with a pull tube, the front end of the pull tube is articulated with the clamp blade assembly, the handle controls the rear end of the pull tube to enable the main tube to move back and forth, a guide tube penetrates through the pull tube and the clamp blade assembly, and the rear end of the guide tube is connected with a needle head of a syringe. Compared with the prior art, in the invention, by means of the clamp blade assembly and the pull tube for controlling the opening of clamp blades, the pull tube inside the clamp blade assembly ensures that the guide tube can directly enter the interior of the fallopian tube, the rear end of the guide tube is connected with the syringe for carrying out the hydrotubation test, and the guide tube is used as the internal stent for the fallopian tube so as to be beneficial to fallopian tube anastomosis and cornel cornual implantation of the fallopian tube, so that the technical level is improved and operation time and operation cost are saved.

The Vas Deferens or Fallopian tubes valve system incorporates a small valve in line with either the Vas Deferens or the Fallopian tube in order to open or close fluid communication therein, and effectively a form of birth control. The valve is installed on either one of the Fallopian tubes or Vas Deferens, and is manually or remotely controlled. The small valve is manually controlled via an arm that can be manually rotated to open or close the valve seated there under. A magnetic version of the small valve incorporates magnets on the arm in order to induce motion of the arm upon focusing a magnetic field upon the valve. A remotely operable valve utilizes a solenoid and radio receiver to remotely operate the small valve.

The invention discloses a preparation method and an application of a tissue slice for observing temporal-spatial distribution of early embryo development in vivo. The preparation method comprises the following steps that 4% paraformaldehyde fixing, upward gradient ethanol dehydration, wax dipping, embedding, serial section, baking, dewaxing and downward gradient ethanol rehydration are performed in sequence on oviducts or uterine tissues which contain mice embryos in every period, and finally, after haematoxylin-eosin staining is performed on the tissues in the slice, neutral gum is used for sealing the slice, or after immunofluorescence histochemical staining is performed on the slice, a fluorescence resistant quenching sealing agent is used for sealing the slice. The tissue slice disclosed by the invention can be used for manufacturing a map of early mice embryo development and detecting the expression of Crb3 in the mice embryos in every period of development in vivo. The preparation method has the advantages that positions of all organs in the embryos can be relatively fixed, so that the position change of embryo cells in a genital tract and the continuity of embryo development can be conveniently observed, the structure is clear, and the tissue slice is convenient to store.

The present invention provides a method for inducing Fallopian tube blockage as a means for female contraception. The method comprises contacting the inner surface tissue of a Fallopian tube with a silver nitrate bearing substrate, delivering an amount of silver nitrate to the tissue sufficient to induce blockage of the Fallopian tube. Preferably, the substrate is a bead. In one embodiment, at least one silver nitrate bearing bead is introduced through the uterine opening of the Fallopian tube by use of a catheter or other device suitable for manipulating the bead. Alternatively, a plurality of beads can be introduced into the Fallopian tube. In a preferred embodiment, one or more silver nitrate bearing beads are arranged on a string to facilitate later removal of the beads. The method of the present invention delivers an amount of silver nitrate to the tissue sufficient to cause tissue necrosis and blockage of the Fallopian tube. The silver nitrate is delivered to the tissue by the substrate in a controlled and localized manner.

The invention discloses an oviduct recanalization therapeutic catheter with an air bag and capable of automatically being fixed. The oviduct recanalization therapeutic catheter comprises a taper-shaped fixator, an outer sleeve positioned behind the taper-shaped fixator, a main catheter penetrating through the taper-shaped fixator and the main sleeve and a detachable inner-layer oviduct catheter mounted in the main catheter. The oviduct recanalization therapeutic catheter is simple in structure, has multiple using methods and can be applied to multiple therapeutic methods. When the oviduct recanalization therapeutic catheter is used, traumas to patients' uterine necks caused by multiple catheter inserting during therapeutic processes are effectively avoided, clinical operation difficulty is greatly reduced, and meanwhile, therapeutic costs and expenses are saved.

A system for treating a fallopian tube to promote contraception includes a catheter device, a tissue disrupting head coupled with the catheter device, and a fluid delivery port for delivering a sclerosant to the mucosal lining of the fallopian tube before, during or after disruption of the mucosal lining by the tissue disrupting head. The catheter device may include a handle and a catheter shaft having a proximal end coupled with the handle and a distal end sized and configured to be advanced through a cervix and into the fallopian tube. The tissue disrupting head may include at least one tissue disrupting member configured to operable to mechanically disrupt a mucosal lining of the fallopian tube by contacting the tissue disrupting member with the mucosal lining and moving the tissue disrupting head. The fluid delivery port may be located in the catheter shaft or the tissue disrupting head.

A non-invasive method for the diagnosis of adenocarcinoma or precursor lesions in a female subject and a kit for performing such diagnosis are provided. The method comprises the steps of (1) preparing epithelial cells of a sample of the subject obtained from a rinse of the uterine cavity and, optionally, the fallopian tubes, and (2) performing an analysis of the cells to determine an abnormality associated with ovarian or endometrial cancer, where the abnormality is indicative of adenocarcinoma or a precursor lesion.

The invention discloses a hysterosalpingography tube. The hysterosalpingography tube comprises a soft tube, a conical head for closing the outer opening of the cervix, two fixing clamps for clamping the cervix, and a fallopian tube interventional catheter for directedly inputting the contrast liquid to the fallopian tube; one end of the soft tube is weave through with the conical head and is formed with a balloon which is inflated or filled with liquid to close the inner cavity of the cervix; the soft tube forms a guide channel for penetrating the fallopian tube interventional catheter and a filling channel for inflating or filling the balloon; two fixing clamps are respectively connected to two sides of the conical head; the conical head is formed with a slot; the fixing clamp comprises an inner clamping arm, an outer clamping arm and a spring piece; the end of rotating connection end of the inner clamping arm formed by the inner clamping arm and the outer clamping arm form is inserted in the slot; the other end of the inner clamping arm forms operating forceps, one of the two clamping rods is inserted in a first slot. The hysterosalpingography tube has the advantages of high reliability and small influence on contrast imaging.

A medical device and procedure is described for occluding a fallopian tube. A tubal occlusion device is inserted into a uterine cavity. The device includes an RF applicator head including an electrode carrier with one or more bipolar electrodes thereon. During insertion, the RF applicator head can be in a closed position. The RF applicator head is positioned at a tubal ostium of a fallopian tube, such that a distal tip of the RF applicator head advances into the tubal ostium. The RF applicator head is deployed into an open position such that the RF applicator head approximates the shape of the uterine cavity in a region of the tubal ostium. Current is passed through the one or more bipolar electrodes to the tubal ostium to destroy tissue to a known depth, which precipitates a healing response in surrounding tissue that over time scars and occludes the fallopian tube.

The invention discloses a laying hen oviduct ampulla epithelial cell culture and oxidative stress model establishment method. The cell culture method consists of: soaking a whole section of laying hen oviduct in PBS, and removing mesentery, connective tissue and blood; cutting off the oviduct ampulla, performing cleaning and then cutting it into tissue pieces; transferring the cleaned tissue pieces into collagenase IV for digestion; filtering the digestive juice, centrifuging the filtrate and discarding the supernate, adding a complete medium to resuspend the cell, and finally transferring the cell into a culture bottle to conduct cultivation. The oxidative stress model establishment method consists of: testing the heavy metal of different concentrations and the cell viability under different action time, and determining the action time point; designing different heavy metal concentration gradients according to the time point, determining cell apoptosis and other conditions, and establishing an oxidative stress model. The invention establishes the laying hen oviduct ampulla epithelial cell oxidative stress model for further exploration of the specific mechanism for egg white quality decline caused by the external environment.

A device is provided to confirm intratubal occlusion in a subject of a fallopian tube having an inner diameter that includes a tubular shaft having a distal end and an interior lumen. An examination head is joined to the distal end of the shaft. A visualization modality in the examination head provides visual or acoustic imaging of the fallopian tube. A power source for the visualization modality is provided. A handle is provided for control of the device. An ex vivo imager of an ocular, video headgear, or a video display is provided in communication with the visualization modality. A process for evaluating an intratubal implant in a fallopian tube through optical or sonic wave visualization is also provided.

A method, apparatus, and kit for marking the opening between the fallopian tube and the uterus (tubal ostia) are provided. A marking dye provided in a marking assembly including a fluid dispenser coupled to a catheter having an open end and a guide wire. The catheter is inserted into the uterus and to a position adjacent the tubal ostia. When properly inserted, the fluid dispenser is activated to cause fluid to flow through the catheter and to the wall of the uterus to provide a mark. Once the mark is provided, endometrial ablation process can be provided in the uterus. The marks can then be used to guide the insertion of tubal occlusion devices.