119 results about "Intrauterine device" patented technology

Contraceptive intrauterine devices made of thin film shape memory alloy materials. The devices are formed in three-dimensional shapes which contact uterus tissue of a human or other mammal to prevent conception. In certain embodiments, structural features such as tails, fenestrations, ridges or grooves are formed on the devices to enhance the contraceptive effect.

Contraceptive intrauterine devices made of thin film shape memory alloy materials. The devices are formed in three-dimensional shapes which contact uterus tissue of a human or other mammal to prevent conception. In certain embodiments, structural features such as tails, fenestrations, ridges or grooves are formed on the devices to enhance the contraceptive effect.

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.

The present disclosure is related to an intrauterine system (insertion device) including an intrauterine device (IUD), an insertion device or applicator for inserting the IUD into the cervix of a female patient, methods related to the insertion procedure, and methods of manufacture for the insertion device.

A disposable plastic vaginal speculum constructed for heavy duty use and / or for long duration gynecological procedures including intrauterine device insertion and vaginal surgical procedures. The hinge region of the speculum, as well as other regions, are reinforced so that the speculum can bear forces of a magnitude normally bearable only by metal vaginal specula.

An intrauterine device for applying pressure to the walls of the uterine cavity includes a resilient body having an elongated member which includes a first end and a second end which are resiliently biased away from each other. The first end of the elongated member includes a first leg having a first end and a second end. The second end of the elongated member includes a second leg having a first end and a second end. A connection member is positioned between the first end of the first leg and the first end of the second leg. A first plug member is secured at the second end of the first leg and a second plug member is secured at the first end of the second leg. The first and second plug members are shaped and dimensioned for bearing against the walls of the uterine cavity as the elongated member spreads outwardly with the first end and the second end moving apart. A method for preventing conception within the uterine cavity is also disclosed.

An inserter for placing a T-shaped intrauterine device inside a patient's uterus and a T-shaped intrauterine device are disclosed. The inserter includes a sleeve part and a plunger part, the sleeve part includes a tube and a first engaging member and the plunger part includes a rod, a handle attached to the rod and a second engaging member. The first and the second engaging members are configured for reversibly engaging the sleeve part and the plunger part to temporarily lock the relative position between the tube and the rod. The T-shaped intrauterine device includes a pair of wings having a relaxed extended configuration and a contracted folded configuration and an elongated contraceptive body suspended from a junction between the wings.

The invention relates to a preparation method and application of collagen scaffold composite bone marrow-derived mesenchymal stem cells (BMSCs). The preparation method comprises the steps of preparing single cell suspension after trypsinizing the BMSCs, uniformly dropwise adding the single cell suspension to a collagen scaffold, putting the collagen scaffold into an incubator to be cultured, and adding an L-DMEM complete medium to continue culture, thus obtaining the collagen scaffold composite BMSCs. The preparation method has the advantages that the following defects are overcome: endometria are seriously injured as intrauterine adhesion is mechanically separated by adopting hysteroscopic surgery, intrauterine devices or anti-adhesion materials are put after the surgery and estrogens are given after the surgery to promote intima growth; the problem of intima scars can not be solved; functional intima repair can not be achieved; adhesion is very easy to happen again. As active ingredients for treating serious endometrium injury, the BMSCs are convenient to obtain, secrete growth factors to improve the local microenvironment and immunoregulation, have good biocompatibility, degradability and safety, promote scarred endometrium repair and increase the intima thickness and local blood vessel density.

The invention relates to a medical surgical clamp matched with an endoscope, in particular to a visible surgical clamp with an endoscope sheath used for taking the intrauterine device out from the uterus. The existing visible surgical clamp is used in the birth control surgery, for example in the surgery to take the intrauterine device out from the uterus with the endoscope. Due to the easy bleeding of the endometrium tissue, the lens of the endoscope is easily contaminated to dim the surgery view, and the device is inserted in and taken out repeatedly for flashing, therefore the surgery time is prolonged and the operation is complicated. After the improvement, the groove formed after the side by side arrangement of the endoscope sheath and the drive rod is also fixed with two flush pipes 15 and 17, wherein the open of one flush pipe faces the open of the endoscope sheath 10, and the open of the other flush pipe faces a clamp head 6. A surgical cannula is provided, and the water nozzle on the surgical cannula is communicated with a negative pressure source to absorb and remove the water of flushing. The improved surgical clamp provides clear surgery view, has compact integral structure and convenient operation, and can shorten the surgery time.

The invention relates to a female intrauterine contraception apparatus, in particular to a nanometer memory alloy intrauterine contraception device which comprises a memory alloy stent and a composite material body which is connected with the stent. An anal filament can be provided or not. The female intrauterine contraception apparatus is characterized in that the composite material body is compounded and manufactured by contraception activity materials and polymer materials. The contraception activity materials comprise at least one of nanometer copper oxide particles and micron copper oxide particles. The intrauterine contraception device of the invention has the advantages of low abscission rate, high contraception rate, long-term usage, small stimulation on endometrium, insignificant side effects and high usage of the copper, which can equably and steadily release copper ions, is suitable for relatively anoxic environment of uterus and can be placed in a conveyor for long time, etc. In addition, the female intrauterine contraception apparatus has unexpected effect that the composite materials help the memory alloy stent to prevent the abscission, so that the abscission rate of the intrauterine contraception device of the invention is lower.

The intrauterine device (IUD) of composite material consists of one vertical arm and two arc arms distributed symmetrically about the top of the vertical arm, and has also two spheres in the external ends of two arc arms and one semi-sphere in the bottom of the vertical arm and with anal filament hole in the center. It has the shape between T and Gamma, accords with the morphologic and dynamic requirements of women's uterine. Compared with available IUD, the present invention has simple setting operation without need of dilatation, no damage on endocervix and less pain, bleeding and other side effects.

A retrievable intrauterine device for placing within a uterine cavity one or more encapsulated elements capable of having interactions with uterine fluid comprising an intrauterine device loaded with the encapsulated elements.

The invention provides an intrauterine adhesion prevention and treatment device. The intrauterine adhesion prevention and treatment device comprises a triangular balloon, a balloon catheter, a catheter base, a balloon support and medicine sustained-release capsules, wherein the balloon catheter is connected with the first vertex of the balloon and communicated with the interior of the balloon, the catheter base is connected with the end, away from the balloon, of the balloon catheter, the medicine sustained-release capsules are used for storing medicine and releasing the medicine gradually in the vivo environment, the two ends of the balloon support are connected with the second vertex and the third vertex of the balloon respectively, a position point of the balloon support is located at the first vertex of the balloon, and the medicine sustained-release capsules are arranged at the two ends of the balloon support. By means of the intrauterine adhesion prevention and treatment device, intrauterine adhesion can be effectively prevented in a short term or a long term, a second operation for replacing an intrauterine device is not needed any more, and the problem that restoration of the endometrium of a patient in whom estrogenic hormones and progestational hormones are contraindicated is slow because the patient can not take the hormones orally is also solved.

The invention provides an in-vivo implanted composite material with X-ray developing performance. The composite material is prepared from the following components in percentage by weight: 5-60 percent of barium sulfate particles, 0-1 percent of an antioxidant, and the balance of a matrix material. The composite material has the advantages of clear X-ray development, excellent mechanical performance, good biocompatibility, simple preparation process and the like, and can be used for preparing a human body bone tissue repairing material, an artificial joint cartilage tissue repairing material, an intrauterine device, venous cannula, a urea catheter, a blood transfusion tube, a catheter and the like.

An intrauterine contraceptive system may include a contraceptive intrauterine device, a retrieval thread permanently attached to the intrauterine device and an insertion device for inserting the intrauterine device into a uterus. The system may also include a release thread releasably coupled with the intrauterine device. The intrauterine device may be deployable out of a distal end of the insertion device and may be configured to change from a delivery configuration when housed in the insertion device to a deployed configuration when deployed in a uterus. The retrieval thread and the optional release thread may be at least partially housed within the insertion device during insertion of the intrauterine device into the uterus. The release thread may extend from the intrauterine device through the insertion device to an attachment point at or near a proximal end of the insertion device.

An intrauterine device includes an elongate member; and a flexible arm having a first end and a second end, wherein the first end is operatively coupled to the elongate member at a first location, and wherein the second end is operatively coupled to the elongate member at a second location, and wherein the flexible arm is adjustable between a closed configuration, in which the flexible arm is closely apposed to the elongate member, and an open configuration, in which the flexible arm extends away from the elongate member, and wherein the flexible arm is biased to be in the closed configuration.

An intrauterine device and method of delivering and using same are provided. The intrauterine device includes a wire having a portion capable of forming a three dimensional (3D) structure. The 3D structure is elastically deformable to a partially collapsed configuration via a crush force larger than a force applied thereto by a relaxed uterine cavity. The three dimensional structure is also capable of elastically contracting and expanding in response to contraction and expansion of the uterine cavity.

The invention discloses an anti-intrauterine adhesion device made from polyethylene materials. The anti-intrauterine adhesion device is in a Y type. The anti-intrauterine adhesion device is composed of a wing, an isolating membrane, a handle and a tail fiber, and is provided with a placer. One end of the wing is connected with the handle of an intrauterine device, the tail end of the wing is in a pointless round shape, and a T-shaped clamping groove is formed in the inner side face of the wing. The handle is in a cylinder shape, one end of the handle is connected with the wing, a tail fiber hole is formed in the other end of the handle, and the tail fiber is fixed to the handle through the tail fiber hole. The isolating membrane is a sector-shaped soft silicon gel film, the two sides of the isolating membrane are fixed to the wing, the tail end of the isolating membrane is free, and the tail end of the wing is sleeved with sleeves arranged on the two sides of the tail end. During placing, the anti- intrauterine adhesion device is sleeved with a casing under pulling of the tail fiber, the wing in a closed state, the isolating membrane is in a foldable state, and after the device is pushed out of the casing through a pushing rod, the wing naturally spreads, and the isolating membrane naturally spreads to be laid flat inside the uterine cavity.

Intrauterine devices and methods for facilitating deployment thereof using a bumper are disclosed. In one embodiment, an intrauterine device comprises a structure including a first central support member and a deployment mechanism coupled to the first central support member. The intrauterine device further comprises a bumper positioned at a distal end of a second central support member and at a more distal position relative to a distal end of the structure so as to prevent the distal end of the structure from contacting the fundus of the uterus of a patient during deployment of the deployment mechanism. In another embodiment, the intrauterine device comprises a bumper coupled to the deployment mechanism and configured to move from a more distal to a more proximal position relative to a distal end of the structure.

The invention belongs to the technical field of medical instruments and particularly relates to a gynecological intrauterine device remover. In order to overcome the defects that since no protective mechanism is provided for the removal in the prior art, interior wall mucosa of the vagina can be scratched easily and great discomfort is caused to gynecological women and that a gripping device is unsuitable for one-hand operation, is inconvenient to operate and makes it more difficult to remove an intrauterine device, the gynecological intrauterine device remover is disclosed, which comprises anupper shell, a lower shell, and a moving rod positioned between the upper shell and the lower shell; a handle is fixedly mounted at one end of the moving rod; the moving rod is sleeved with a socketrod. The spacing of the upper shell and the lower shell in the gynecological intrauterine device remover can be adjusted conveniently so that the vagina is spread properly; the inner wall mucosa of the vagina is never scratched during removal of the intrauterine device; discomfort is relieved for the patient. The intrauterine device can be clamped stably through an upper jaw and a lower jaw just by pressing the bottom end of a rotating rod by the thumb; operation can be achieved by single hand; the gynecological intrauterine device remover is convenient to use.

The invention relates to a gynecological traditional Chinese medicine with the health care effects of dispersing cold, activating blood, relieving pain and the like and a preparation method thereof. Nowadays, gynecological diseases are commonly and frequently encountered diseases for women, in particular to the inherent troubles for vast females, such as indisposed symptoms like dysmenorrhea, discomfort when putting on intrauterine device, uterus hurt post partum or constitutional female diseases such as refractory dysmenorrhea, icy cold of hands and feet, unsmooth menses, etc. The invention adopts more than ten traditional Chinese medicines including evodia rutaecarpa, common fennel, radix sophorae flavescentis, Chinese corktree, chinese cinnamon, asarum, angelica, olibanum, myrrh and borneol which are extracted scientifically and rationally and the active ingredients of which are refined, to be prepared into the gynecological traditional Chinese medicine according to the method of 'internal diseases to be cured externally' of the traditional medicine and by utilizing the percutaneous absorption technology of the modern medicine. The gynecological traditional Chinese medicine has the health care effects of regulating thoroughfare and conception vessels, regulating Qi and activating blood, warming channels and dispelling cold, promoting blood circulation and removing blood stasis, regulating menstruation and alleviating pain, and the like, and is tested and proved by the clinical trials to be short in course of treatment, quick in effect, easy for enhancement and safe in use and to have no toxic and side effect, but a convenient and feasible technology and obvious therapeutic effects.

Disclosed are two-handed IUD insertion devices for positioning an intrauterine device (IUD) in the uterus which includes a plunger, a sheath, a grip and a handle where the axial movement of the plunger is controlled via features along the length of the plunger in communication with a grip feature.

The invention discloses a composite material copper-containing intrauterine device (IUD) with a porous structure. The IUD comprises a polymer framework with a porous structure and metal particles dispersed therein. A porogenic agent in a composite material copper-containing IUD with a compact structure, which is prepared from a uniform mixture of metal particles, matrix polymer and the porogenic agent through injection molding or press injection, is extracted and removed, so the composite material copper-containing intrauterine device (IUD) with the porous structure is obtained. The compositematerial copper-containing IUD with the porous structure completely has the advantage of the composite material copper-containing IUD with the compact structure, namely greatly relieving side effectssuch as bleeding and pain brought by the traditional IUD with a bare copper structure, and also has a unique advantage of greatly improving the effective utilization rate of copper particles by introducing the porous structure and further effectively improving the service life of the composite material IUD under the condition of not changing the addition amount of the copper particles.

The invention discloses a visual multifunctional intrauterine ring removing device production method, which comprises the following steps of: 1) preparing all required clamping apparatuses; and 2) setting an endoscope, wherein an apparatus passage is arranged on the endoscope. The invention additionally discloses a ring removing device produced by using the visual multifunctional intrauterine ring removing device production method. The method provided by the invention is simple, easy to realize and low-cost; the design of the ring removing device provided by the invention is ingenious, the structure is reasonable, and when the situation of an intrauterine device is observed, the clamping apparatuses can stretch into an uterus through the apparatus passage to take out the intrauterine device or clean foreign matters, the operation under a visual situation is realized, the surgery time can be greatly reduced, the pain of a patient is reduced, the dependence on the skill of a doctor is reduced and the accuracy and the success rate of a surgery are improved; and moreover, the endoscope and the clamping apparatuses can be conveniently combined and separated, the operation by the doctorand the cleaning and the disinfection of the endoscope and the clamping apparatuses are facilitated and the cross infection is avoided.

An intrauterine device and more specifically an intracervical device (ICD) for the local release of drugs in the loco-regional treatment of tumours of the uterine cervix comprises an elongated stem (2) to be positioned in the cervical canal (15), this stem consisting of an inner hollow core (3) and a coating (4) containing a gradual-release drug, the stem being attached to: a first element (5) for blocking the stem (2) inside the uterine cavity (12), and located at the cranial or upper end; a second blocking element (7, 71) positioned inside the vagina (11), against the ectocervix (16), located at the caudal or lower end of the stem (2).

The invention relates to a mixture for an intrauterine device, belonging to the technical field of intrauterine devices. The mixture for an intrauterine device is characterized in that the mixture comprises polyethylene and barium sulfate, wherein the weight percentages of the polyethylene and the barium sulfate are respectively 76-80% and 20-24%. The invention has the advantages of simple processing, stable process, precise control, high barium sulfate content, good product quality, convenient real-time detection, distinct development and the like.

The invention discloses a recoverable umbrella-shaped fallopian tube intrauterine device. The intrauterine device comprises a tube body. The top end of the head of the tube body is provided with an agnail which is of an umbrella-shaped structure. The end of the tube body is provided with a ring body which is of a flat-shaped hollow structure. The ring body is provided with a through hole. A barb and calabash-like protrusions are arranged between the agnail and the ring body. The agnail, the barb, the calabash-like protrusions, the ring body and the tube body are of an integrated structure. A conveyor is a medical plastic catheter. The recoverable umbrella-shaped fallopian tube intrauterine device is reasonable in structure and design. Due to the fact that the intrauterine device is manufactured by using the integrated structure and high molecular materials, the intrauterine device is safe and reliable, the occurrence of salpingitis after placing the device is decreased, and the effectiveness of blocking the fallopian tube after placing the device is guaranteed. Together with other contraception measures, the intrauterine device can be used for the contraceptive operation on women of childbearing age. The intrauterine device has the advantages of being free from surgery and pain, and convenient to operate. The intrauterine device is an efficient, safe, non-toxic, deformity free, non-carcinogenic, reversible and complication free contraceptive tool and is acceptable by most of the women of childbearing age.

The invention relates to an intrauterine device made of a degradable composite material with a layered nano-structure. The intrauterine device is made of the degradable composite material with the layered nano-structure, wherein the degradable composite material is of a layered nano-structure with alternate arrangement of copper layers and iron layers, the weight percentage of copper is 40-70%, and the elasticity modulus of the composite material is 80-120 GPa. For the nano-scale layered iron / copper degradable material, the nano-scale alternate distribution of the copper layers and the iron layers is formed in the internal structure, thus the large-area direct contact between copper and the endometrium is avoided, and further, the injury to the inner conditions of the uterus caused by abundant reactive oxygen generated by excessively fast corrosion of copper is alleviated. Meanwhile, along with the degradation of iron, new copper layers are continuously exposed out, and the copper layers exposed out in the composite material are of nano-structures, so that the release of copper ions is guaranteed, and further, the contraception effect is guaranteed; good contraception effect is achieved, and meanwhile, the injury to the body is reduced.