Recoverable intra-uterine device

A technology of intrauterine devices and embryos, applied in the field of recyclable intrauterine devices, can solve the problems of changing the encapsulated components of capsules, difficulty in handling, loss, etc.

Active Publication Date: 2009-01-21
ANECOVA SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] Nevertheless, the permeable porous membrane is still fragile, and manipulation of the capsule, especially for loading and unloading of the encapsulated components, or during implantation or retrieval in utero, will alter t

Method used

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  • Recoverable intra-uterine device

Examples

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Embodiment approach

[0069] As an example, we illustrate with Figure 3 a second embodiment of the invention in which the chamber has a rectangular through-hole 12'.

[0070] The length of the through hole may be between 10-150 μm, preferably 75 μm or longer, or 150 μm or almost equal to the length of the small chamber 11 .

[0071] The small chamber is elongated cylindrical, and the rectangular through-hole 12' extends along the longitudinal direction of the small chamber.

[0072] In this embodiment, said wall comprises rows of through holes 12'

[0073] The pitch of the via holes 12' may be between 20 and 200 µm.

[0074] Thanks to the intrauterine device to which the present invention relates, it is possible to maintain oocytes and / or embryos under a chamber cage and at the same time optimize their interaction with the environment of the uterine cavity.

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Abstract

A recoverable intra-uterine device comprises a housing (11) containing one or several elements selected from a group containing an embryo, male and/or female gametes, a fertilised oocyte, an unfertilised egg and the combination thereof, wherein said housing (11) is provided with a wall made of a biocompatible material. The wall is provided with a series of perforations (12, 12') whose size is sufficient in order to bring the intra-uterine medium into a cellular contact with the housing (11) and to keep the elements therein. The inventive device is provided with a system for loading and unloding one or several elements selected from the group containing an embryo, male and/or female gametes, a fertilised oocyte, an unfertilised egg and the combination thereof.

Description

technical field [0001] The present invention relates to a retrievable intrauterine device, especially for the implantation of gametes or embryos in the uterus. Background technique [0002] The present invention relates to general methods of in vivo and intrauterine fertilization in assisted reproductive methods following published culture techniques and / or pre-implantation development. [0003] A retrievable intrauterine device as described in document WO3 / 011200 has been approved. [0004] The intrauterine device comprises a chamber for containing a component of interest, such as embryos, female or male gametes, fertilized or unfertilized eggs, encapsulated within the device. [0005] This encapsulation technology allows fertilization and embryo development in a capsule placed in the uterus. [0006] The advantages of this technique are: overcoming several problems caused by in vitro culture; and pre-transfer developmental gametes and / or embryos can be placed during the ...

Claims

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Application Information

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IPC IPC(8): A61B17/425
CPCA61B17/435
Inventor P·莫克N·布赫P·勒戈夫
Owner ANECOVA SA
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