CN213374598U

CN213374598U - Improved catheter for taking blood from adrenal vein

Info

Publication number: CN213374598U
Application number: CN202021254638.5U
Authority: CN
Inventors: 李小刚; 梁中书; 蒋卫红; 叶飞
Original assignee: Third Xiangya Hospital of Central South University
Current assignee: Third Xiangya Hospital of Central South University
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-06-08
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses an improvement pipe that is used for adrenal vein to get blood, an improvement pipe that is used for adrenal vein to get blood includes the body, the body has afterbody port and head port, the body is buckled and is formed the angle of buckling, the lateral wall of body is in the head port deviates from the position at the angle of buckling forms the rectangle opening, rectangle open-ended length direction be on a parallel with the pipe axis direction of head port department, rectangle open-ended width direction perpendicular to the pipe axis direction of head port department. The improved catheter for taking blood from adrenal vein aims at solving the technical problem that the blood is difficult to take by common catheter in the prior art.

Description

Improved catheter for taking blood from adrenal vein

Technical Field

The utility model belongs to the field of medical equipment, especially, relate to an improvement pipe that is used for adrenal vein to get blood.

Background

Adrenal vein phlebotomy (AVS) is a very valuable technique used for clinical diagnosis of secondary hypertension (primary aldosteronism) in recent years, and the main difficulty of conventional adrenal vein phlebotomy is that after finding the adrenal vein, a common catheter cannot draw blood smoothly, so that operation failure affects final disease diagnosis. At present, a COBRA 5F catheter is adopted for taking blood from the right adrenal vein clinically, but the opening of a blood vessel can be found by using the catheter frequently, and the blood cannot be taken smoothly after the opening of the catheter is flush and enters the blood vessel.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Based on this, the utility model provides an improvement pipe that is used for adrenal vein to get blood, this an improvement pipe that is used for adrenal vein to get blood aims at solving the technical problem that the pipe commonly used among the prior art got the blood difficulty.

(II) technical scheme

In order to solve the technical problem, the utility model provides an improvement pipe that is used for adrenal vein to get blood, an improvement pipe that is used for adrenal vein to get blood includes the body, the body has afterbody port and head port, the body is buckled and is formed the angle of buckling, the lateral wall of body is in the head port deviates from the position of buckling the angle forms the rectangle opening, rectangle open-ended length direction be on a parallel with the pipe axis direction of head port department, rectangle open-ended width direction perpendicular to the pipe axis direction of head port department.

Preferably, the length of the rectangular opening is consistent with the pipe diameter at the head port of the pipe body, and the width of the rectangular opening is equal to 1/3 of the pipe diameter at the head port of the pipe body.

Preferably, the area of the rectangular opening is 90% to 110% of the area of the head port of the pipe body.

Preferably, the outer surface of the pipe body is coated with a nano silver coating.

Preferably, the corresponding pipe wall section of the rectangular opening is a smooth surface.

(III) advantageous effects

Compared with the prior art, the utility model is used for the beneficial effect of the improvement pipe of adrenal vein blood sampling mainly includes:

because the side wall of the tube body is provided with the rectangular opening at the position where the head port deviates from the bending angle, the flow area at the head port is increased on the side wall of the tube body, the adrenal vein can be conveniently taken blood, and the situation that the blood cannot be smoothly drawn after the head port is flush and enters the blood vessel in the prior art is avoided.

Drawings

The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:

fig. 1 is a perspective view of an improved catheter for obtaining blood from the adrenal vein according to an embodiment of the present invention;

fig. 2 is a top view of an improved catheter for adrenal vein bleeding in accordance with an embodiment of the present invention.

Description of reference numerals:

1-pipe body, 2-tail end port, 3-head end port, 4-bending angle and 5-rectangular opening.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two elements may be mechanically or electrically connected, directly or indirectly connected through an intermediate medium, or connected through the inside of the two elements, or "in transmission connection", that is, connected in a power manner through various suitable manners such as belt transmission, gear transmission, or sprocket transmission. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 and 2, the present invention provides an improved catheter for taking blood from adrenal vein, the improved catheter for taking blood from adrenal vein comprises a catheter body 1, the catheter body 1 is provided with a tail port 2 and a head port 3, the catheter body 1 is bent to form a bending angle 4, the side wall of the catheter body 1 forms a rectangular opening 5 at the position of the head port 3 deviating from the bending angle 4, the length direction of the rectangular opening 5 is parallel to the direction of a catheter axis S at the head port 3, the width direction of the rectangular opening 5 is perpendicular to the direction of the catheter axis S at the head port 3, and specifically, a rectangular sheet can be cut at the position of the side wall of the catheter body 1 deviating from the bending angle 4 at the head port 3 to form the rectangular opening 5, but the utility model is not limited to the above, it is also possible to directly manufacture such a tubular body 1 with a rectangular opening 5 during the forming operation, such a solution being also protected by the present invention.

The length of the rectangular opening 5 is consistent with the pipe diameter at the head port 3 of the pipe body 1, and the width of the rectangular opening 5 is equal to 1/3 of the pipe diameter at the head port 3 of the pipe body 1, so that the tip of the cut part of the pipe body 1 is prevented from scratching a blood vessel (particularly exceeding the inner diameter 1/3).

Specifically, the area of the rectangular opening 5 is 90% to 110% of the area of the head port 3 of the pipe body 1, that is, the area of the rectangular opening 5 almost coincides with the area of the head port 3 of the pipe body 1, and preferably, the area of the rectangular opening 5 is equal to the area of the head port 3 of the pipe body 1, that is, 100%, and the rectangular opening 5 is required to be close to the area of the head port 3 of the pipe body 1 because: too large affects the contrast effect and too small affects the ischemia speed.

According to the preferred embodiment of the present invention, the corresponding pipe wall section of the rectangular opening 5 is a smooth surface, preventing the retention of impurities.

In addition, the outer surface of the pipe body 1 is coated with a nano silver coating, and the pipe body has the functions of sterilization, bacteriostasis and antibiosis. The tube body 1 is preferably a silicone tube, a rubber tube, or any other suitable material.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An improved catheter for obtaining blood from adrenal vein, characterized in that, the improved catheter for obtaining blood from adrenal vein comprises a tube body, the tube body is provided with a tail port and a head port, the tube body is bent to form a bending angle, the side wall of the tube body is arranged at the position of the head port deviating from the bending angle to form a rectangular opening, the length direction of the rectangular opening is parallel to the tube axis direction at the head port, and the width direction of the rectangular opening is perpendicular to the tube axis direction at the head port.

2. An improved catheter for adrenal vein bleeding according to claim 1, wherein the length of said rectangular opening is consistent with the tube diameter at the head port of said tube, and the width of said rectangular opening is equal to 1/3 of the tube diameter at the head port of said tube.

3. An improved catheter for adrenal vein bleeding according to claim 1, wherein the area of the rectangular opening is 90% to 110% of the area of the head port of the tube.

4. An improved catheter for adrenal vein bleeding according to any of claims 1 to 3, wherein the outer surface of said tube is coated with a nanosilver coating.

5. An improved catheter for adrenal vein bleeding according to any of claims 1 to 3, wherein the corresponding wall cross section of said rectangular opening is smooth.