• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Medical device for access to the uterine interior and safe canalization of the cervical canal for the introduction of intrauterine devices (iud), consisting of a semirigid guide (1) with a blunt tip to which external cylindrical pieces of bevelled tip are attached externally ( 3.1, 3.2, 3.3). Said cylindrical pieces can later be removed together with the semi-rigid guide, leaving in place only the cylindrical piece of upper caliber (3.3), which in this way forms a working channel through which the uterine interior can be accessed and inserted through it. Iud (Machine-translation by Google Translate, not legally binding)
    公开号:ES2604529A1
    申请号:ES201631693
    申请日:2016-12-27
    公开日:2017-03-07
    发明作者:José Manuel RIVAS DURO
    申请人:José Manuel RIVAS DURO；
    IPC主号:
    专利说明:

    DESCRIPTION

    INTRAUTERINE DEVICE INSERTION SYSTEM IN UTEROS OF DIFFICULT CHANNELING
     5
    SECTOR OF THE TECHNIQUE

    The present invention relates to a medical system for use on patients, with the purpose of guiding the insertion of intrauterine devices for medicinal and / or contraceptive use in patients in whom, due to the physical characteristics of their uterus, this is difficult or impossible, as well as the channeling of uterus for other diagnostic and therapeutic purposes.

    BACKGROUND OF THE INVENTION
     fifteen
    There are numerous models of intrauterine devices (IUDs) for medicinal and / or contraceptive use on the market, differing in forms, materials used for their manufacture, systems by which they generate their medicinal and / or contraceptive efficacy, and in physical mechanisms which are used for insertion into the uterine cavity. In all cases its placement involves the canalization of the uterine cervix and access to the interior of the uterine cavity in a safe way.

    The uterine cervix contains a channel that, under natural conditions, is continuously collapsed and exerts different degrees of resistance to the introduction of materials into its interior according to the individual. Sometimes, it may be impossible to introduce an intrauterine device due to the resistance generated by this body tissue, and this duct needs to be dilated by mechanical means. This can be achieved by using various dilators already existing in the market, of different sizes and materials.

    The use of mechanical dilators requires their successive introduction into the cervical canal 30 until the uterine cavity is reached, and subsequently removed to insert the introducer into the uterus through the channel thus widened. This manipulation generates pain, and it cannot be guaranteed that the dilation from very fine calibers to the necessary caliber is not producing an inadequate tunneling of the cervical tissue (commonly called “false path”), which does not lead to the interior of the uterus but rather generates a 35
    trauma to the tissue and can lead to serious consequences if it is not detected, including ultimately the loss of said uterus.

    These inadequate tunneling ("false pathways") are more frequent when manipulating uterine necks of women who have undergone surgery on that organ, or who present 5 abnormal cervical channels for various reasons. In these cases, it may be impossible to access the interior of the uterus for the placement of an IUD, or to perform other diagnostic or therapeutic procedures.

    EXPLANATION OF THE INVENTION 10

    The present invention has the dual purpose of achieving safe access to the interior of the uterus through the cervical canal, and of generating a secure artificial channel through which an IUD of any model can be introduced to its proper position (or other material for perform diagnostic or therapeutic procedures through said channel). fifteen

    To this end, the invention consists of a solid semi-rigid guide with a rounded tip and with features that confer ecorefringence (capacity to be detected by ultrasound), to which successive semi-rigid pieces of plastic material and beveled or rounded tip, 20 so that the internal caliber of each major piece fits perfectly to the external caliber of the minor piece, and so on.

    Once the desired caliber (defined by the internal caliber of the last piece introduced) has been achieved, all the smaller caliber pieces of the interior 25 of the latter can be removed together, so that a working channel of known caliber is generated through from which you can slide the introducer of an IUD (or other equipment such as a biopsy cannula). All the pieces have external marking at intervals of 1 cm, and the thicker pieces have a progressively shorter overall length than the ones of smaller thickness. The pieces are marked in such a way that it is possible to know at what point a piece has reached the tip of the immediately smaller piece.

    The plastic material of the semi-rigid pieces must have sufficient consistency to keep its light open without containing the rest of the smaller pieces inside, but adequate flexibility to adapt to the curved shape that the cervical canal 35 usually takes towards the uterine cavity.

    The invention described in this way is a novelty in the access system to the interior of the uterine cavity and can be used as follows: the small caliber guide is advanced through the cervical canal until there is evidence that It has located inside the uterine cavity. This can be defined by ultrasound or by introducing said guide through the working channel of a diagnostic hysteroscope (in this case, once this point is reached, the hysteroscope is removed leaving the guide in place).

    At this point, the rear end of the guide is inserted into the channel of the first semi-rigid piece (the one with the smallest caliber) and, without moving the guide, the piece is pushed until it reaches the mark indicating that its tip It is level with the tip of the guide. The process is repeated by coupling and pushing pieces of progressively larger caliber through the preceding set of pieces, up to their predefined marks. At the moment in which the desired caliber is reached, the outer part is held firmly and pulled from those of 15 smaller calipers (facilitated by the fact that they have a longer length and fit in stepwise) so that it has been obtained an artificial canal that can be used in the same way as if it were the cervical canal to introduce an IUD.

    This system uses the guide as a guarantee that the uterine interior will be accessed and inadequate tunneling will not occur in the uterine tissue, and allows generating a secure access mode that can be coupled to multiple introductory systems that are already existing but ineffective in difficult cases.

    The described system will be conveniently sterilized and bagged in a container that protects it from contamination until the moment it will be used.

    DESCRIPTION OF THE DRAWINGS

    To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of figures is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:
     35
    Figure 1 shows a schematic view of the semi-rigid guide in position within a uterus, in accordance with the present invention
    Figure 2 shows a schematic view of the coaxial passage of the first cylindrical part, according to a possible embodiment of the device according to the present invention.
    Figure 3 shows a schematic view with the assembly in position of a possible embodiment of the device according to the present invention.
    Figure 4 shows a schematic view with the larger caliber piece in position, once the lower caliber piece assembly has been removed, according to a possible embodiment of the device according to the present invention.
    Figure 5 shows a schematic view of the larger caliber piece in position, according to a possible embodiment of the device according to the present invention, with an intrauterine device introducer (IUDs), not object of the present invention, passing through thereof to reach the uterine cavity.

    The following is a list of the different elements represented in the 15 figures that make up the invention:

    1 semi-rigid guide
    2 Uterus
    3.1 Lower caliber cylindrical part 20
    3.2 Cylindrical part of medium caliber
    3.3 Top caliber cylindrical part
    4 Intrauterine device introducer (IUDs)
    5 Intrauterine device (IUD)
     25
    PREFERRED EMBODIMENT

    In view of the aforementioned figures, and in accordance with the numbering adopted, an example of a preferred embodiment and operation of the device can be observed, which comprises the parts and elements indicated and described in detail below. 30
    Thus, as seen in Figures 1 to 5, a possible preferred embodiment of the device or system for canalization of the uterus (2) and subsequent passage through an IUD introducer (4, 5), essentially comprises the following elements:

     A semi-rigid guide (1) with a small caliber blunt tip, externally marked 35 centimeter to centimeter and with a differentiated mark equal to the cylinder length of
    smaller caliber, counting from its tip, so that the point at which said cylinder (3.1) reaches its proper position is known.
     A series of attachable cylindrical parts (3.1, 3.2, 3.3) successively coaxial to the semi-rigid guide and progressively to each cylindrical part of lower caliber on its outer part. 5

    In this preferred embodiment, as shown in the figures, the caliber of the first cylindrical part (3.1) is such that it slides effortlessly over the semi-rigid guide (1) until it reaches its position, and the successive cylindrical parts (3.2, 3.3 ) they slide coaxially over the outer surface of the lower caliber piece, dilating the cervical canal and accessing the inside of the uterus (2).

    The cylindrical pieces will have a shorter length as their caliber is successively greater, and will be marked in such a way that it is known when the piece being introduced has reached its position (the place where the beveled tip of the larger caliber piece overlaps) to that of the immediately lower caliber). In this way, all the lower-caliber parts (3.1, 3.2) can be easily removed and the upper caliber (3.3), which is the function of the working channel for the introduction of IUDs (4, 5). ).
    权利要求:
    Claims (7)
    [1]

    1. Medical device for access to the uterine interior and safe canalization of the cervical canal for the introduction of intrauterine devices (IUDs) and other related uses, characterized in that it comprises:
     A semi-rigid guide with blunt tip.
     A series of cylinders successively coaxially coupled to the semi-rigid guide and progressively to each lower caliber cylinder from its outer part.

    [2]
    2. Medical device according to claim 1, characterized in that the semi-rigid guide is made of one or more materials that allow its ecorefingency, that is, it is possible to detect its position by means of a medical ultrasound imaging device.

    [3]
    3. Medical device according to claim 1 characterized in that the semi-rigid guide has visible marks with intervals of 1 cm from the blunt tip, and because it has a distinct mark equal to the length of the first cylinder, from the blunt tip.

    [4]
    4. Medical device according to claim 1 characterized in that the cylinders that are coaxially coupled to the guide are made of semi-rigid material and have a bevelled and rounded end. twenty

    [5]
    5. Medical device according to claim 1 characterized in that said cylinders have external and internal diameters such that the smaller caliber has its internal diameter such that it allows the external coupling to the semi-rigid guide, and the successive ones in size have an internal diameter such that allow external coupling coaxially to the preceding cylinders, 25 successively.

    [6]
    6. Medical device according to claim 1 characterized in that said cylinders have a shorter length as their caliber is greater, and have a visible mark such that it allows to know when the tip of a cylinder has reached its correct position on the previous lower caliber cylinder .

    [7]
    7. Medical device according to claim 1 characterized in that the larger caliber cylinder has an internal diameter sufficient to advance an intrauterine device introducer inside. 35
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    同族专利:
    公开号 | 公开日
    ES2604529B2|2017-07-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3927666A|1972-11-21|1975-12-23|Alza Corp|Inserter for intrauterine device|
    FR2548909A1|1983-06-24|1985-01-18|Dornion Claude|Bougie which can be used for dilating the neck of the uterus|
    CN2381341Y|1999-08-10|2000-06-07|陈昭|Disposable continuous cervical dilator|
    法律状态:
    2017-07-10| FG2A| Definitive protection|Ref document number: 2604529 Country of ref document: ES Kind code of ref document: B2 Effective date: 20170710 |
    2021-09-28| FD2A| Announcement of lapse in spain|Effective date: 20210928 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201631693A|ES2604529B2|2016-12-27|2016-12-27|Intrauterine device insertion system in uterus of difficult canalization|ES201631693A| ES2604529B2|2016-12-27|2016-12-27|Intrauterine device insertion system in uterus of difficult canalization|
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