CN202724077U - Intrauterine device with memory function - Google Patents
Intrauterine device with memory function Download PDFInfo
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- CN202724077U CN202724077U CN 201220343085 CN201220343085U CN202724077U CN 202724077 U CN202724077 U CN 202724077U CN 201220343085 CN201220343085 CN 201220343085 CN 201220343085 U CN201220343085 U CN 201220343085U CN 202724077 U CN202724077 U CN 202724077U
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- intrauterine device
- memory function
- active substance
- material layer
- active material
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Abstract
The utility model discloses an intrauterine device with a memory function. The intrauterine device is characterized by being provided with an active substance layer, wherein a memory alloy wire is arranged in the active substance layer; and a controlled release membrane layer is arranged outside the active substance layer. Compared with the prior art, the intrauterine device disclosed by the utility model has the advantages of favorable resilience, low possibility of deformation, low fall rate, more reasonable release of active substances and the like.
Description
Technical field
This utility model relates to a kind of women assembly of intra-uterine contraceptive utensil, particularly a kind of intrauterine device with memory function.
Background technology
Intrauterine device (IUD) is the contraceptive device that is placed in women's cavity of uterus, is a kind of reversible, long-acting contraceptive device, is the widely used contraceptive devices of present China women of child-bearing age.The development trend of intrauterine device, aspect support, from rustless steel, macromolecular material support develop into present memory alloy stent, without support; Aspect the contraception active substance, never contain active substance inertia environment-development exhibition cupric, contain indometacin, contain the activity ring of progesterone.
Pastille IUD contains steroid hormonal contraceptive IUD, be levonorgestrel IUD such as graceful month happy product, the graceful month happy levonorgestrel 20ug/d that discharges, realized progesterone is used for intrauterine device, this birth control apparatus is except having efficient contraception function, can also be as Hormone Replacement Therapy, incidence rate through a large amount of clinical practice amenorrheas is higher, although this is regarded as its advantage, but amenorrhea still is a puzzlement to women's use, and Chinese child bearing age women is difficult to accept amenorrhea in idea, in addition due to the hormone side reaction irregular/drop is hemorrhage also can to affect its utilization rate; And because the drug release skewness, particularly some medicine is more concentrated, and local concentration is excessive, easily causes occurring side effect.
Cupric IUD and cupric pastille IUD since wherein reactive metal copper directly exposed outside, so we to be referred to as them be naked copper structure I UD.These naked copper structure I UD is widely used copper IUD of present stage.The contraceptive effect of naked copper structure I UD is excellent, but also there are the series of side effects problems such as pain, hemorrhage, menoxenia and complication (such as pelvic inflammatory disease) in they in clinical use.These side effect and existing cupric IUD or the existing inherent shortcoming of cupric pastille IUD naked copper structure: as directly contacting of inserting " burst release " that the initial stage copper ion exists, metallic copper and uterus Endometrium, copper surface change more and more coarse and can to deposit a large amount of deposits etc. closely related.
Therefore clinical expert wishes to develop more reasonably intrauterine device of little and its structural design of a kind of active substance rate of release.
Summary of the invention
The purpose of this utility model is intended to overcome the above-mentioned shortcoming that existing birth control apparatus exists, and provides a kind of when guaranteeing contraceptive effect, reduces the active substance rate of release, reduces the intrauterine device with memory function of various side effect.
This utility model is achieved by the following technical solution: a kind of intrauterine device with memory function, characteristics be, it has active material layer, is provided with memory alloy wire in the active material layer, and the outside of active material layer is provided with the controlled release rete.
In order to realize better goal of the invention, described controlled release rete can be the silicone rubber release-controlled film.
In order to realize better goal of the invention, described active material layer is the mixture of active substance and carrier.Wherein, active substance can be contraceptive or Nanometer Copper etc., and carrier can be silicone rubber.
Compared with the prior art this utility model has following beneficial effect:
1, the technical program adopts memory alloy wire as the birth control apparatus support, can effectively improve the resilience of birth control apparatus, and is not yielding, reduces expulsion rate;
2, adopted active material layer to add the double-decker of controlled release rete, made the uniform as far as possible release of active substance, it is more reasonable to discharge, and contraception is efficient, few side effects;
3, birth control apparatus support outside is soft active material layer and controlled release rete, and support does not expose, and has reduced endometrial stimulation, reduces and puts the hemorrhage and pain that causes behind the device, and birth control apparatus comfortableness in uterine cavity is good, is difficult for perforation, and is safer.
Below in conjunction with drawings and Examples this utility model is elaborated.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The explanation of accompanying drawing drawing:
1 controlled release rete, 2 active material layers, 3 memory alloy wires.
The specific embodiment
Referring to Fig. 1, it is comprised of controlled release rete 1, active material layer 2 and memory alloy wire 3 three parts.First make the birth control apparatus skeleton by memory alloy wire 3, active substance and carrier material are mixed and made into active material layer 2, be coextruded into bimetallic tube with controlled release rete 3, memory alloy wire 3 is penetrated wherein, by techniques such as welding, can conveniently make this birth control apparatus (at first make annulus, insert and become the in advance birth control apparatus shape of design behind the uterus, such as first palace type, uterine cavity type etc.).
This birth control apparatus at room temperature can be arbitrary shape (as circular, oval etc.), insert the uterus after, under body temperature, birth control apparatus reverts to the birth control apparatus shape (such as uterine cavity type, first palace type etc.) of design.
Described active substance can be contraceptive, such as gestodene, etonogestrel, levonorgestrel etc., also can be Nanometer Copper; Carrier material is silicone rubber; Controlled release rete 3 can be silicone rubber release-controlled film material.
Claims (6)
1. the intrauterine device with memory function is characterized in that, it has active material layer (2), is provided with memory alloy wire (3) in the active material layer (2), and the outside of active material layer (2) is provided with controlled release rete (1).
2. the intrauterine device with memory function according to claim 1 is characterized in that, described controlled release rete (1) is the silicone rubber release-controlled film.
3. the intrauterine device with memory function according to claim 1 is characterized in that, described active material layer (2) is the mixture of active substance and carrier.
4. the intrauterine device with memory function according to claim 3 is characterized in that, described active substance is contraceptive.
5. the intrauterine device with memory function according to claim 3 is characterized in that, described active substance is Nanometer Copper.
6. the intrauterine device with memory function according to claim 3 is characterized in that, described carrier is silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343085 CN202724077U (en) | 2012-07-16 | 2012-07-16 | Intrauterine device with memory function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343085 CN202724077U (en) | 2012-07-16 | 2012-07-16 | Intrauterine device with memory function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202724077U true CN202724077U (en) | 2013-02-13 |
Family
ID=47649837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220343085 Expired - Fee Related CN202724077U (en) | 2012-07-16 | 2012-07-16 | Intrauterine device with memory function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202724077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103099703A (en) * | 2013-03-06 | 2013-05-15 | 史凤阳 | Medicated composite silicon rubber assembly for intrauterine device |
| CN109394412A (en) * | 2018-02-28 | 2019-03-01 | 窦梅青 | A kind of center of gravity transfer type intrauterine device |
-
2012
- 2012-07-16 CN CN 201220343085 patent/CN202724077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103099703A (en) * | 2013-03-06 | 2013-05-15 | 史凤阳 | Medicated composite silicon rubber assembly for intrauterine device |
| CN109394412A (en) * | 2018-02-28 | 2019-03-01 | 窦梅青 | A kind of center of gravity transfer type intrauterine device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140716 |
|
| EXPY | Termination of patent right or utility model |