CN2170749Y

CN2170749Y - Disposable intrauterine contraceptive device

Info

Publication number: CN2170749Y
Application number: CN 93224730
Authority: CN
Inventors: 刘锋; 张志强
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-23
Filing date: 1993-09-23
Publication date: 1994-07-06
Anticipated expiration: 2003-09-23

Abstract

The utility model relates to a uterus-shaped contraceptive device for women, which comprises a uterus-shaped stainless steel framework, a copper wire, etc. The copper wire of the contraceptive device is wound around a silicon rubber axis or a plastic axis for medical use and is bound on the uterus-shaped stainless steel framework by medical nylon wires or threads via a hole on the axis. Non-steroid drugs or other hemostatic and slow-releasing drugs are positioned in the uterus-shaped stainless steel framework. The proper model of the utility model can be chosen according to the uterus size. The utility model has the advantages of reducing side reactions such as desquamation, pregnancy with IUD in situ, bleeding, pains, etc., avoiding cross infection, enhancing continuation rate, having strong acceptability, etc. The adopted material has abundant sources; the technical production is simple and reliable; the utility model has low price, so the utility model can be used in a wide range.

Description

Disposable intrauterine contraceptive device

This utility model belongs to a kind of medical apparatus and instruments, is applicable to women's family planning contraception usefulness.

Traditional uterine cavity shaped rustless steel intrauterine device is a kind of economy, easy contraceptive device, but there is the pregnancy rate with iud height, side reaction such as hemorrhage grade is many, the shortcoming that continuation rate is not high, although and copper palace shape birth control apparatus can make continuation rate increase and can reduce pregnancy rate with iud, exist behind the band device hemorrhage many, menostaxis and through between side reaction such as hemorrhage, the pain of drop, and do not have disposable placement utensil, cross infection and influence operation easily take place.Application number provides a kind of " active intrauterine device " of being made up of stainless steel silk and copper band for 90210797.6 Chinese patent, the strong point of the comprehensive above two kinds of birth control apparatus of this birth control utensil, have the convenience of taking, difficult drop-off, the little advantage of side reaction simultaneously, and the selected materials source is abundant, and price is low; But still there is following defective in this birth control apparatus: 1, copper is exposed easily stimulates endometrial impairment outside, increases the weight of the hemorrhage side reaction of Denging; 2, medicine places the copper band the inside, and effective length is not enough, does not reach dose therapeutically effective; 3, copper band directly is suspended on the stainless steel silk skeleton, is difficult to fix, and can influence use, and the fixing integrity that tightly will destroy palace shape device; 4, in use for some time, copper can corrode, and increases the danger that comes off.

The purpose of this utility model be by overcome copper band exposed perishable outside, easily stimulate that palace film, drug dose are not enough, copper band is difficult to be fixed on the first-class defective of stainless steel insert, and provide a kind of silica gel coated copper wire of using, and copper wire is easy to fix, medicine effectively the amount of controlling dosage competent to have a contraceptive effect good, come off, pregnancy rate with iud is low, the continuation rate height, the compound palace of the medicine copper type intrauterine device that side reaction is little.

Composition of the present utility model comprises palace shape stainless steel insert, copper wire, medical grade silicon rubber or medical plastic axle, non-steroidal or other hemostasis slow releasing pharmaceutical etc.; Palace shape stainless steel insert (1) is directly selected the palace shape rustless steel birth control apparatus of producing according to GB GB-11234-89 for use; is diameter that the copper wire (5) of 0.2-0.5mm is wrapped in medical grade silicon rubber (or medical plastic) axle (6) and goes up and form a helical form; be bundled on the palace shape stainless steel insert (1) with medical nylon wire (or silk thread) (6) by the hole (4) on the axle (6) again; place the bar-shaped non-steroidal of palace shape or other hemostasis slow releasing pharmaceutical (2) at the inner chamber of palace shape stainless steel insert (1), be coated with silica gel protected layer on the used copper wire (5).

Advantage of the present utility model is: 1, non-steroidal or other hemostasis slow releasing pharmaceutical is all to be placed in the inner chamber of stainless steel insert of palace shape of palace shape device, because of capacity increases, thereby the various dose that can fully guarantee to lay medicine, reach optimum therapeuticing effect; 2, bundle the axle that there is an aperture upper end in palace shape stainless steel insert center with line, can keep the integrity of birth control apparatus, the deficiency of avoiding the copper wire corrosion fracture to come off, and production technology is easy to be reliable, easily produces in batches; 3, twine to coat on the axle protective layer copper wire, can avoid copper directly to contact with endometrium, remain in the uterine cavity slowly copper ion releasing, improve service life, the low advantage of maintenance pregnancy rate with iud; 4, Zhou length can be decided according to different needs, and it is end dissociative down, puts disposable placement device inner packing sterilization into, both can make things convenient for the medical worker to operate, and can avoid cross infection again, saves medical expense; 5, can select the birth control apparatus of suitable model for use according to the uterus size.

Below in conjunction with drawings and Examples this utility model is further described:

Wherein Fig. 1 is a structural representation of the present utility model

Fig. 2 is a palace shape stainless steel insert partial schematic diagram

Fig. 3 is for twining the medical grade silicon rubber or the medical plastic axle sketch map of copper wire

Embodiment:

In the inner chamber of uterine cavity shaped rustless steel shape skeleton (1), put into 26% indometacin slow release adhesive tape (2); dosage is 20mg, and it is big slightly to make two ends in mould, and the two ends diameter is 2mm; the stage casing diameter is 1.2mm; total length is the silicone rubber axle (6) of 12mm, and a hole (4) is worn with laser in axle (6) upper end, and hole (4) footpath is 0.5mm; twine the copper wire (5) that coats silica gel protected layer in the axle stage casing; curl, the diameter of copper wire (5) is 0.35-0.4mm, copper surface area is 250mm ²(if use 0.35mm, its length is 22.8cm, if use 0.4mm, its length is 19.9cm), pass axis hole with medical nylon wire (6), and repeatedly binding knotting in the spirillum gap of palace shape stainless steel insert (1) transverse arm center, axle (6) lower end is put in the disposable placement device, use after the package sterilization, obtain good effect through prerun, reached the purpose of design, its expulsion rate, pregnancy rate with iud, side reaction such as hemorrhage grade, take-off rate due to symptom, infection rate all is better than present existing birth control apparatus greatly, and the institute source of drawing materials is abundant, and technology is easy to be reliable, safe in utilization, be easy to apply.

Claims

1, a kind of compound palace of disposable medicine copper shape intrauterine device of forming by palace shape stainless steel insert (1) and copper wire (5), the copper wire (5) that it is characterized in that this birth control apparatus is wrapped on medical grade silicon rubber (or medical plastic) axle (6), curl, and be bundled on the palace shape stainless steel insert (1) with medical nylon wire (or silk thread) (6) by the hole (4) of axle on (6).

2, the compound palace of disposable medicine copper according to claim 1 shape intrauterine device is characterized in that the inner chamber of described palace shape stainless steel insert (1) is laid non-steroidal or other hemostasis slow releasing pharmaceutical (2).

3, according to claim 1, the compound palace of 2 described disposable medicine copper shape intrauterine device, its special card is coated with silica gel protected layer on the steel wire (5) that is this birth control apparatus, and the specification of copper wire (5) is: diameter 0.2-0.5mm, surface area is between 200-380mm ²Between.