55 results about "Deferent duct" patented technology

The invention provides a method and system for treating disorders in parts of the body. A particular treatment can include on or more of, or some combination of: ablation, nerve modulation, three-dimensional tissue shaping, drug delivery, mapping stimulating, shrinking and reducing strain on structures by altering the geometry thereof and providing bulk to particularly defined regions. The particular body structures or tissues can include one or more of or some combination of region, including: the bladder, esophagus, vagina, penis, larynx, pharynx, aortic arch, abdominal aorta, thoracic, aorta, large intestine, sinus, auditory canal, uterus, vas deferens, trachea, and all associated sphincters. Types of energy that can be applied include radiofrequency, laser, microwave, infrared waves, ultrasound, or some combination thereof. Types of substances that can be applied include pharmaceutical agents such as analgesics, antibiotics, and anti-inflammatory drugs, bulking agents such as biologically non-reactive particles, cooling fluids, or dessicants such as liquid nitrogen for use in cryo-based treatments.

A method is provided for local controlled delivery of a drug to the seminal vesicle, the prostate, the ejaculatory duct, or the vas deferens of a patient in need of treatment. In one embodiment, the method includes implanting a resorbable drug delivery device within the seminal vesicle, the prostate, the ejaculatory duct, or the vas deferens of the patient. The drug delivery device may include an elastic device body housing at least one drug reservoir which contains at least one drug. In a preferred embodiment, the method further includes releasing the drug from the device in a controlled manner to, typically directly to, the seminal vesicle, the prostate, the ejaculatory duct, or the vas deferens.

There is provided a method for controlling a flow of fluid in the vas deferens in order to obtain a controlled male contraception. The method comprises 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 vas deferens, and stimulating the constricted wall portion to cause contraction of the wall portion to further influence the flow in the vas deferens. The method can be used for restricting or stopping the flow in the vas deferens, or for actively moving the fluid in the vas deferens, with a low risk of injuring the organ.

An occlusion clip for permanently occluding a bodily vessel, such as the vas deferens. The occlusion clip has a first leg, a second leg, joined on their proximal ends by a spring coil. The spring coil provides a biased torsional force to the first leg and the second leg, to force them into a closed position. The first leg and the second leg have on their distal ends a vessel occlusion portion that occludes the targeted vessel when the clip is in a closed position.

Apparatuses and methods for performing non-invasive vasectomies are provided. In a preferred embodiment, an apparatus according to the present invention comprises a main body defining a recess and an ultrasonic transducer disposed adjacent said recess and adapted to emit ultrasonic energy into said recess. A tissue clamp is removeably disposed in the recess and is adapted to receive parallel sections of a scrotum that include a portion of the vas deferens. The clamp is further adapted to position the vas deferens within an effective distance of the ultrasonic transducer. Also, the apparatus includes means for retaining the parallel sections and the vas deferens within the clamp during a procedure.

A male contraception implant for insertion into the vas deferens of a patient includes a tubular member having an internal bore for receiving a guide wire, a bulbous head portion for anchoring the implant and to facilitate its removal in a contraception reversal procedure, a flexible neck portion attached to the enlarged head portion, and a main body portion having three widened segments for occluding the vas deferens. An implantation tool includes an elastic C-shaped slotted ring for holding an externalized portion of the vas deferens during the delivery of the implant.

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.

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.

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.

The invention relates to the use of a thermal reversible gel, such as a copolymer composition, as a biological filler or implant. The gel has a semi-solid form at body temperature, but upon cooling to a temperature below a threshold level, the gel is liquefied and can be re-shaped, re-sized, manipulated or removed from the body. The gel may be used as a subcutaneous implant, a biological filler, joint or tissue spacer, for wrinkle filling or other cosmetic implants, as a soft-tissue replacement for reconstructive surgery, or as a barrier within the lumen of a biological structure, such as a blood vessel. The implant may be used to provide reversible birth control by providing, for example, a reversible barrier to the cervix or a reversible blockage of the lumen of the vas deferens.

Disclosed are compositions for site specific delivery in the body including diseased vasculature (e.g., aneurysmal sacs, arteriovenous malformations, etc.), body lumens such as the vas deferens and fallopian tubes, cavities created in vivo for the purpose of tissue bulking, and the like. Also disclosed are methods employing such compositions as well as kits comprising such compositions.

The invention provides an artificial insemination method of breeder cocks. The method comprises the following steps: 1) artificially feeding breeder cocks before semen collection, namely selecting 55-week-old artificial insemination breeder cocks, adding feed additives to the conventional feed according to a ratio of 1.5-2.0wt%, feeding the breeder cocks until the breeder cocks are at the age of 68 weeks or the production cycle is ended according to a feeding procedure of continuously feeding for 7 days and later stopping for 7 days; 2) collecting semens; 3) diluting the semens, namely using semen diluents of which the volume is 2-4 times of that of the semen and slowly adding to semen collecting test tubes along the tube walls of the semen collecting test tubes, and then gently turning the semen collecting test tubes and repeating for 3-4 times; 4) carrying out artificial insemination, namely turning the anus of hens by anus turning members, transferring the diluted semens to deferent ducts by inseminators, and then gently inserting the deferent ducts into fallopian tubes of the hens by the inseminators and conveying the semens in the deferent ducts to conveying pipes, so as to realize the artificial insemination. The artificial insemination method disclosed by the invention is high in semen viability and insemination rate.

A medical device is provided which forms a physical barrier between the two ends of a cut vas during a vasectomy procedure, comprising a biodegradable, polymeric cap that is applied over at least one prostatic end of the vas, the cap including a fastener for preventing premature dislodgement.

The disclosure relates to a vas deferens valve for contraception for use in a man and for implanting in the vas deferens within the scrotum, enabling the regulating of sperm flow in the vas deferens. There is a manually activated rocker switch which can be activated through the skin of the scrotum and which has a through-channel which, in the opened state, leads from a valve connection piece on the testicular vas deferens to a valve connection piece on the abdominal end of the vas deferens and, in the closed valve state, can be blocked on the end of the through-flow channel which faces the abdominal vas deferens end. The valve additionally has at least one outlet channel which, in the closed state of the valve, leads from the valve connection piece on the testicular end of the vas deferens out of the valve to the outside in the body of the man.