BRPI0811215A2 - human embryo transfer catheter - Google Patents

Abstract

CATHETER FOR EMBRYONIC TRANSFER IN HUMANS. Embryonic transfer catheter invention is comprised of an inner part containing: proximal, distal end flexible plastic tubing coupled to a threaded steel tube syringe connector (1). The inner part engages and runs freely on the outer part consisting of a semi-rigid plastic tube with distal end with bulging and 30-degree bend and proximal end with threaded syringe connector (7).

Description

CATHETER FOR EMBRYONIC TRANSFER IN HUMANS '

The present invention patent aims at an embryonic transference catheter model for use in the Human Reproduction Clinic and which was originally designed to improve its use and efficiency in relation to existing similarities abroad. Since in Brazil there is no similar with domestic production.

The catheters used in Brazil are imported and used in the Human Reproduction clinics. Despite several models available, we do not have any national products. The proposed catheter consists of two parts. An interior composed of flexible, non-toxic and atraumatic tuboplastic. One end is thermoformed to facilitate embryo introduction and the other end has a flange for receiving the threaded syringe connector. This plastic tube is inserted into a smaller stainless steel tube with proximal graduation in centimeters. These three parts form the inner joint. The second part is the outer part composed of a non-toxic and traumatic plastic tube, which receives the inner set inside. The distal end has a small bulging which is term formed and has a curvature of 30 degrees. The proximal end has a flange that receives the threaded screw connector.

Although all Human Reproduction services already use catheters to perform embryonic transfers routinely, we do not have any purpose-made products produced in our country. Although there are several types available in the market, none fulfills all the needs of Human Reproduction clinics. Some are rigid, others very flexible, others are straight and are not anatomical to the uterus and sometimes there is irregular availability because it is an imported product. In view of these problems and the purpose of overcoming them, the catheter disposition for embryonic transfer was developed, object of the present patent, which consists in making the Human Reproduction clinics supplying the necessity of the market and available a nasational product.

This catheter will be anatomical, with flexible inside and semi-rigid outside with bulging tip to facilitate penetration into the uterus and not to be traumatic. 30 degree curvature obeys the uterine anatomy facilitating its introduction.

The attached drawings show both internal and external parts and their assembly.

Fig 1 shows an expanded perspective view of the ready-to-use mounted catheter.

Fig. 2 shows the inner part

Fig. 3 shows the outside.

In accordance with the above illustrated illustrations, the decateter model, object of the present invention, consists of an inner part composed of plastic tuboflexible (1) with a round and atraumatic end (2) and another with flange (3) connected the threaded syringe connector (4) together with stainless steel tubing marked in centimeters at the proximal end to mark the length inserted into the uterus (5). The outside is composed of semi-rigid plastic tube with distal end with bulging (6) and 30 degree bend and with proximal end connected to threaded syringe connector (7). Mounted Catheter (8)

In this arrangement the inner part runs freely inside the outer part. The embryos should be placed at the tip of the inner tube. The doctor holding the set should gently introduce the set with the outer part coming in contact with the cervical canal. Bulging at the tip of the outer tube will facilitate transposition of the internal cervical canal. After this, the inner part should be gently introduced into the uterus. The doctor will know how much he will be introducing by the markings on the metal tube. After introduction, the embryos will be deposited inside the uterus with the aid of a small commercially available syringe attached to the inner connector. Then the catheter should be removed and discarded in accordance with the normal health in force in the country.

Of course the catheter can be manufactured in various diameters and sizes to suit the needs of each case.

Claims (1)

1.) "HUMAN EMBRYO TRANSFER CATHET" comprised of an inner plastic hose (1) with a round, atraumatic tip (2) and a flanged (3) connected to the syringe connector (4) together with centimeter-marked stainless steel tube at the proximal end to mark the length introduced into the uterus (5) The outer part is composed of semi-rigid plastic tube with distal end with bulging (6) and 30 degree curvature and with proximal end connected to threaded syringe connector (7) .The catheter is characterized by being anatomical and atraumatic enabling the transfer of embryos safely and easily.The flexibility and rounding of the inner tube tip (1) does not cause any trauma to the endometrium. 30 degree bend in the outer semi-rigid tube (6) facilitates passage through the internal cervical canal and obeys the uterine anatomy facilitates Marking on the tubing allows the physician to know how much is entering the womb (5) .The syringe connector facilitates the coupling of any available syringe in the market (7).