84 results about "Vas deferens" patented technology

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.

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.

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.

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.

A device for occluding a body lumen, and particularly contraceptive or sterilization device for occluding a reproductive tract or lumen to prevent the passage of reproductive cells through the tract or lumen, generally comprising a tubular member, and a mesh member, transversely disposed on the tubular member lumen. The mesh member is permeable to allow for tissue ingrowth, which produces a tissue impregnated mesh occluding the body lumen. The occluding device of the invention can be used in the fallopian tubes of a female patient, the vas deferens of a male patient, or other body lumen.

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.

This application presents a bifurcated, optimally-angled surgical forceps. In one example, this surgical forceps may enable a more natural maneuver for initial clamping of the vas deferens through the scrotal skin. This may be more comfortable for users and easier to maintain, and may provide greater tactile surface contact between the thumb and vas deferens. This device also may provide the surgeon with an entire segment of vas deferens upon which the vasectomy may be performed, thus reducing the need for frequent repositioning of instruments. The device may also be applied to other surgical procedures that may benefit from the features of the device and where a section of a tubular anatomical structure may need clamping at two points along its length. Examples include blood and lymphatic vessels, ducts of the digestive system, and large nerves or nerve bundles.

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.

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.

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.

An occlusive device and a method of embolizing or occluding a bodily lumen by injecting or otherwise implanting the occlusive device are described. The device includes a polymer or polymer composition and a carbon-based material or nanomaterial such as graphene. The device may be used for sterilizing a human or animal by implanting the device into the vas deferens, fallopian tubes, or uterus, but may also be used to occlude any other bodily ducts, interstitial space, or organs.

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 discloses an artificial insemination method of a thoroughbred pig, comprising the following steps: collecting semen; inspecting, diluting and storing the semen; inseminating semen; inseminating semen secondarily; and the like. In the step of inseminating semen secondarily, a semen inseminating pipe which is larger at the upper part and smaller at the lower part is deeply inserted inside the uterus of a sow, the conception rate is greatly increased, and the proportion of male piglets to female piglets is controlled, so that the productive rate of the sow reaches up to 75%, the utilization rate of high-quality boars is improved, the cultivation cost is reduced, and the propagation of reproductive track diseases is reduced.

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.

An apparatus, system or device and methods for applying one or more stimuli to an implantation, occlusive device, or embolization are described. The implantation can include a polymer or polymer composition such as a hydrogel and can be used for sterilizing a subject in need of contraception by occluding the vas deferens, fallopian tube(s), or uterus, but can also be used to occlude, in whole or part, any other body ducts or organs. The one or more stimuli can modify the occlusion so that is removed from the body lumen in situ, there by reversing the contraception or other effects of the occlusion.

A cannula implantation instrument for use with the delivery of guide wire based implants includes a handle having an open slot for receiving a guide wire and a cavity for receiving an implant pre-mounted on the guide wire, a cannula having an open slot for also receiving a guide wire and a sharpened tip for introducing the cannula and guide wire simultaneously into the vas deferens of a patient, and a guide wire on which an intra vas implant is pre-mounted. The instrument further includes a safety clip on the handle that secures the guide wire and / or implant to the handle until released by a physician. The cannula implantation instrument may be ergonomically formed to provide comfort and ease while being handled by the physician.

The invention provides a canidae inseminator. The canidae inseminator comprises a bionic penis 1 and a seminiferous duct 2 and is characterized in that the seminiferous duct 2 is arranged in the bionic penis 1 and penetrates out of the two ends of the bionic penis 1; an expansion air bag 3 is arranged in the middle section of the bionic penis 1 and connected with an air pressure ball 5 through an air guide pipe 4; an exhaust valve 6 is arranged between the air guide pipe 4 and the air pressure ball 5; the air guide pipe 4 is arranged in the bionic penis 1 and penetrates out of the tail of the bionic penis 1. According to the technical scheme, by the adoption of the modern structural bionic technology, the bionic penis is utilized to simulate the real mating process of canidae; compared with natural mating, the quality of descendants of female dogs can be improved; meanwhile, compared with traditional artificial insemination, the canidae inseminator is easy and convenient to operate, increases the pregnancy rate of the female dogs, provides a guarantee for the female dogs in safety and sanitation and is suitable for popularization and application.

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.

The invention discloses a bionic artificial insemination device for female cattle, and relates to the field of bionic artificial insemination instruments. The device comprises an injection probe, a handle cover, a handle, a probe controller, a silica gel corpus penis and a spermaduct. The front end of the injection probe is connected with the frozen semen tubule at the front end of the spermaductin insertion mode. The spermaduct is arranged in the handle and the silica gel corpus penis. The tail end of the handle is connected with the handle cover for fixing the injection probe through an orifice. The probe controller is also arranged at the bottom of the handle. The invention has the advantages of reasonable structure design, simple and convenient operation. Ordinary breeding managers can operate the device. The labor cost of artificial insemination saved and the quality of artificial insemination is guaranteed.

The present invention relates to a male contraception apparatus for obtaining temporary sterility of a male mammalian individual. The apparatus comprises an implantable restriction device adapted to restrict vas deference in the region downstream the ampulla during a controlled period in order to preventing sperms to reach the urethra. Further, the apparatus comprises a control device for controlling the operation of the restriction device.

The invention relates to a fish gonad determination method. Said method includes the following steps: placing the fish to be examined into an electric anesthetization tank, adopting 25-30 V low-voltage dierct current to apply said direct current to fish the make electric anesthetization, then using an endoscope specially-design for fish and inserting it into genital operature and making dynamic determination from uterine tube / deferent duct to two sides or ovary / testis to obtain determinal data, then utilizing the gonadal development index parameters of different development stages of fish and determined gondal development condition to make male and female identification.

The invention discloses a contraception device which can enable males to achieve easy and long-lasting contraception and belongs to the field of contraception treatment. The contraception device aims at solving the problem that by means of the existing contraception method, the feeling of reproductive organs can be affected, negative effects can be caused on bodies, repatency operation is necessary when ligatured people want to have a baby, and the repatency operation may not be successful. By means of the contraception device, a ball valve is installed on the seminiferous duct, and the aim of contraception can be achieved by controlling the ball valve.

The invention discloses a seminiferous duct contraceptive suppository conveyor which comprises a sleeve pipe, wherein the front end of the sleeve pipe is provided with a positioning cavity; a cavity is arranged in the sleeve pipe; the front end of the sleeve pipe is provided with a suppository seat; the rear end of the suppository seat is provided with a positioning column; the positioning column is inserted in and matched with the positioning cavity; suppository seat cavities are arranged from the positioning column to the front end of the suppository seat in the suppository seat; the front end of the suppository seat is bent to one side; the front end of the suppository seat is provided with a needle seat; a needle head is installed on the needle seat, and a guide rod is installed in the cavity; a guide rod inner cavity is arranged in the guide rod, and a guide thread is installed in the guide rod inner cavity. A memory alloy silica gel mesh duct-shaped seminiferous duct contraceptive suppository matched with the seminiferous duct contraceptive suppository conveyor comprises a suppository body, wherein an inner cavity is arranged in the suppository body, and one end of the suppository body is provided with a suppository body opening; two silica gel spacers are installed in the inner cavity in parallel; and the periphery of the suppository body is provided with a silica gel layer. The invention overcomes the defects that male contraceptive methods are few at present, and only one long-term measure of vasoligature is available, and provides technical support and a contraceptive device for improving males to participate in family planning.

The invention provides a porcine embryo transplantation method, which comprises the steps as follows: (1) a recipient sow is processed through manual restraint, a cunnus part is cleaned, a deep uterus spermaduct outer-tube is inserted into a vagina until a spongy top plugs up a cervical orifice, and then a flexibility tubule is inserted in a deep uterus spermaduct to reach a uterine cornu; (2) the tubule is rinsed by perfusing embryo culture media for the first time, the embryo culture media is perfused for the second time, a porcine embryo which grows to reach a blastula stage is injected into the tubule from an external opening and is mixed with the embryo culture media, the mixed solution is led by the tubule to enter the uterine cornu, then the embryo culture media is injected to rinse the tubule for the third time, the part of the external opening of the tubule is folded, and liquid flows into a uterus completely by utilizing air-pressure; and (3) the deep uterus spermaduct outer-tube is drawn out after the tubule is drawn out, and then the recipient sow is led to keep the standing posture for at least 15 minutes. During the process of porcine embryo transplantation, the porcine embryo transplantation method needs no anaesthesia and operation, and solves the problems that injury and pains are brought to the recipient sow during the process of the porcine embryo transplantation.