FR2571263A2 - Tube allowing selective opacification of arteries - Google Patents

Abstract

The present invention relates to a tube allowing selective opacification of arteries by creating a pocket for retention of the opacifying liquid by modification of the volume of the end of the tube. This tube comprises a cylindrical body of a comfortable material 1, at the end of which there is a means for expanding into lateralised trapezoidal corolla 2, and a second means which can be actuated externally and which causes the corolla 2 to open.

Description

 The purpose of the addendum is to modify a. tion of the end of the corolla of the probe which takes a trapezoidal shape.

 According to the invention, the means opening out in an ororola consist of an elastic material reinforced at the upper part 7, and on the periphery of: the opening 7, allowing an opening of Icm5 wide and 2cm high.

 According to another characteristic of the invention, the triangular-shaped corolla would bend to penetrate a large plug hollow probe, in its closed position.

 According to another characteristic of the invention, the reinforced edges of the corolla 7, are inserted at the end of the probe, avoiding its retroversion.

 According to another characteristic of the invention, the end of the. probe 8, would only be made of a solid reinforced material, allowing a smaller thickness than the hollow probe 1.

Other characteristics and advantages of the present invention will appear more clearly on reading the description which follows, made with reference to the appended drawings in which
FIG. 1 represents an external view of the probe placed in an artery seen in section.

 FIG. 2 represents a partial section of the probe in its position for positioning the profile.

 Figure 3 shows the same section seen from the front.

 FIG. 1 represents a section of the aorta 3 with its sigmoid valves 4, and of the collateral arteries 5 and 6.

 In this aorta, the probe 3 is sometimes perforated to be introduced into the arteries and the end 2 of which takes the form of a trapezoidal corolla when the probe has arrived in the place where it must fulfill its function, the cl) ro11e being lateralized with respect to the axis of the probe.

 This corolla is designed to artificially create a pocket 9 allowing retention of the clouding product of the collateral artery 5, which will be used for selective arterioglaphy. The opacification product being brought by the tube 10 near the collateral artery.

 FIG. 2 represents the trapezoidal corolla in profile, developed, reinforced on its edges 7, and sorted fine on its walls 9, the internal orifice 11 allowing the passage of the opaque liquid and constitutes the hollow end of the probe 1, position 8 represents the continuity of the probe 1 but in flexible and full material, allowing a smaller thickness.

 FIG. 3 represents this ~ same corolla of the face and makes it possible to better appreciate its semicircular opening at the top and its connection to the distal end of the probe 1 towards the bottom.

 At the end of use, and after having made the arteriography, the practitioner pushes the external probe 12, so as to retract the corolla inside the probe 12, and he extracts the latter from the patient's body.

Claims (3)

ADDITIVE CLAIMS  1- Probe according to claim 1 of the main patent, allowing the selective opacification of the arteries acerized in that it comprises a cylindrical body 1 of conformable material at the end of which is a fine corolla, of trapezoidal shape and laterized with respect to the axis of the probe 1.  2- A probe according to claim 1 with a corolla whose open shape is maintained by reinforced elastic edges and which can take on a pleated appearance in its non-blooming shape.  3- Probe according to claim 1, the final end 8 of which consists of a solid reinforcement but of small thickness, allowing the corolla to fold in its non-blooming form in the hollow probe 12.