CN218980156U

CN218980156U - Special radiography pipe of ox horn bow of way is gone into to femoral artery

Info

Publication number: CN218980156U
Application number: CN202222328743.4U
Authority: CN
Inventors: 邱涛; 戴晓艳
Original assignee: Zigong First Peoples Hospital
Current assignee: Zigong First Peoples Hospital
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-05-09
Anticipated expiration: 2032-08-31

Abstract

The utility model relates to the field of a contrast tube, which is used for solving the problem that the existing contrast tube is difficult to perform super-selection on a ox horn arch, and provides a special contrast tube for a femoral artery access ox horn arch, comprising: a flexible distal tube end, a bend, a middle portion and a proximal tube end connected in sequence; the bending part is in a butt-hook shape; the middle part is arc-shaped; the proximal end of the tube is linear; the bending part, the middle part and the proximal end of the tube are integrally formed, and the whole of the bending part, the middle part and the proximal end of the tube is formed by connecting a first semicircular wall and a second semicircular wall along the longitudinal axis of the radiography tube; the first semicircular wall and the second semicircular wall are connected through a soft piece to form a tube shape. The special contrast tube for the ox horn arch through the femoral artery access can manually control the bending of the far end of the tube so that the ox horn arch can be selected.

Description

Special radiography pipe of ox horn bow of way is gone into to femoral artery

Technical Field

The utility model relates to the field of contrast tubes, in particular to a special contrast tube for a femoral artery access ox horn arch.

Background

Contrast catheters are key devices for percutaneous angiography, which should have suitable stiffness, elasticity, softness and torsion; the X-ray transmission performance should be good; the shape memory is good, the tube wall should be smooth, the contrast performance is high, and the thrombosis performance should be controlled at the minimum range. The contrast catheter is a long rubber tube and has the main function of providing a tube guide so that the contrast agent can be smoothly introduced into a blood vessel to generate a contrast effect. Therefore, a contrast catheter should have the following basic conditions: the inner pipe is smooth and can generate high flow; the developing performance is high; the atraumatic head end is required to have extremely high prototype performance and is not easy to deform; the guidewire can be easily passed through, etc. The radiography conduit has different shapes according to the requirements for different parts, for example, the conduit commonly used for a plurality of arteries on the aortic arch comprises three conduits of a Headhounter I, a II and a III type and three conduits of a Simmon I, a II and a III type; RDC type catheters for kidney artery and vein and SimmonI, II and III type catheters; cobra type I, ii, iii catheters and SHK catheters for iliac arteries and veins. However, when the ox horn arch is imaged, it is difficult for the existing imaging catheter to smoothly enter the ox horn arch. Although the publication CN203852731U discloses a ox horn bow radiography tube, the bending direction of the head and the straight tube body cannot be well adapted to the shape of the ox horn bow.

Disclosure of Invention

The utility model aims to provide a special contrast tube for a femoral artery access ox horn arch, which solves the problem that the contrast tube in the prior art is difficult to enter the ox horn arch.

The utility model is realized by the following technical scheme:

a special contrast tube for a trans-femoral approach bullhorn arch comprising: a flexible distal tube end, a bend, a middle portion and a proximal tube end connected in sequence; the bending part is in a butt-hook shape; the middle part is arc-shaped; the proximal end of the tube is linear; the bending part, the middle part and the proximal end of the tube are integrally formed and are connected with each other along the longitudinal axis of the radiography tube, and the whole bending part, the middle part and the proximal end of the tube are formed by connecting a first semicircular wall and a second semicircular wall; the first semicircular wall and the second semicircular wall are connected through a soft piece to form a tube shape.

Preferably, the tube distal length is 3-5mm.

Preferably, the length of the bending part is 6-10mm.

Preferably, the length of the middle part is 40-60mm.

Preferably, the first semicircular wall is located on a side near the distal end of the tube; the length of the first semicircular wall is larger than that of the second semicircular wall, and the first semicircular wall and the second semicircular wall are connected in a staggered mode at one end, far away from the middle portion, of the proximal end of the tube.

Preferably, an end of the first semicircular wall, which is far away from the middle portion, is connected with a circular ring.

Preferably, the hardness of the first semicircular wall and the hardness of the second semicircular wall are increased gradually from the bending portion to the proximal end of the tube.

Preferably, both the inner wall and the outer wall of the contrast tube are provided with a hydrophilic coating.

The utility model has at least the following beneficial effects: the whole shape accords with the shape of the ox horn arch, so that the pushing of the contrast tube in the ox horn arch is facilitated; the first semicircular wall and the second semicircular wall are connected through a soft piece, so that the first semicircular wall and the second semicircular wall can be dislocated under the action of force to drive the bending of the distal end of the tube, and the contrast tube can conveniently enter into a reverse angled ox horn bow; the hardness gradual change makes the contrast tube front end soft in order to adapt to the ox horn bow form that bending degree is high, and the rear end is harder so that the rear end has certain holding power, the propelling movement of the contrast tube of being convenient for.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a special contrast tube for a femoral artery access bullhorn bow provided in embodiment 1;

FIG. 2 is a schematic view of the ring in embodiment 1;

FIG. 3 is a schematic structural view showing the connection of the first semicircular wall and the second semicircular wall in embodiment 1;

FIG. 4 is a schematic illustration of the contrast tube provided in example 1 as it enters the bullhorn;

icon: the device comprises a 1-tube distal end, a 2-bending part, a 3-middle part, a 4-tube proximal end, a 5-first semicircular wall, a 6-second semicircular wall, a 7-soft part and an 8-circular ring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Example 1:

as shown in fig. 1 to 4, the special contrast tube for a ox horn arch via femoral artery access provided in this embodiment includes: a flexible tube distal end 1, a bending part 2, an intermediate part 3 and a tube proximal end 4 which are connected in sequence; the bending part 2 is in a butt hook shape; the middle part 3 is arc-shaped; the proximal tube end 4 is rectilinear; the bending part 2, the middle part 3 and the proximal tube end 4 are integrally formed and are formed by connecting a first semicircular wall 5 and a second semicircular wall 6 along the longitudinal axis of the radiography tube; the first semicircular wall 5 and the second semicircular wall 6 are connected through a soft piece 7 to form a tube shape.

In the specific implementation process, when the radiography tube reaches the bending position of the left subclavian artery, the first semicircular wall 5 is pulled, so that one side of the distal end 1 of the tube is stressed to be bent, and the superselection of the ox horn arch is facilitated. The first semicircular wall 5 and the second semicircular wall 6 are both composed of three layers, the outer layer is made of polyethylene, the middle layer is made of steel wire braiding, the catheter is guaranteed not to collapse and break, the catheter is guaranteed to withstand certain pressure, the inner layer is made of nylon PTFE coating, the lubrication function is achieved, friction force of contrast agent passing through the inside of the catheter is reduced, and flow is maintained. The soft part 7 is composed of two layers, wherein the outer layer is made of polyethylene, and the inner layer is made of nylon PTFE coating.

In this embodiment, the tube distal end 1 has a length of 3-5mm.

In this embodiment, the length of the bending part 2 is 6-10mm.

In this embodiment, the length of the middle part 3 is 40-60mm.

In this embodiment, the first semicircular wall 5 is located on the side near the distal end 1 of the tube; the length of the first semicircular wall 5 is greater than that of the second semicircular wall 6, and the first semicircular wall 5 and the second semicircular wall 6 are connected in a staggered manner at one end of the proximal tube end 4, which is far away from the middle part 3.

In particular, the offset connection makes it possible to pull on the first semicircular wall 5 with a point of force.

In this embodiment, an end of the first semicircular wall 5 remote from the middle portion 3 is connected to a circular ring 8.

In practice, it is easier to hold the ring 8 with a hand to exert a force.

In this embodiment, the hardness of the first semicircular wall 5 and the hardness of the second semicircular wall 6 are increased gradually from the bending portion 2 to the proximal end 4 of the tube.

In the specific implementation process, the gradient vacuum extraction technology can be utilized to enable the plasticizer in the contrast tube material to be orderly and gradually distributed so as to realize the overall hardness gradual change.

In this embodiment, both the inner wall and the outer wall of the contrast tube are provided with hydrophilic coatings.

In a specific implementation, the hydrophilic coating may be polymethylvinyl maleic anhydride.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A special contrast tube for a femoral artery access bullhorn arch, comprising: a flexible distal tube end, a bend, a middle portion and a proximal tube end connected in sequence; the bending part is in a butt-hook shape; the middle part is arc-shaped; the proximal end of the tube is linear; the bending part, the middle part and the proximal end of the tube are integrally formed, and the whole of the bending part, the middle part and the proximal end of the tube is formed by connecting a first semicircular wall and a second semicircular wall along the longitudinal axis of the radiography tube; the first semicircular wall and the second semicircular wall are connected through a soft piece to form a tube shape.

2. The trans-femoral approach bullhorn dedicated contrast tube of claim 1, wherein the tube distal length is 3-5mm.

3. The trans-femoral approach bullhorn dedicated contrast tube of claim 2, wherein the kink length is 6-10mm.

4. The trans-femoral approach bullhorn dedicated contrast tube of claim 1, wherein the mid-section length is 40-60mm.

5. The trans-femoral approach bullhorn dedicated contrast tube of any one of claims 1-4, wherein the first semicircular wall is located on a side proximal to the tube distal end; the length of the first semicircular wall is larger than that of the second semicircular wall, and the first semicircular wall and the second semicircular wall are connected in a staggered mode at one end, far away from the middle portion, of the proximal end of the tube.

6. The trans-femoral approach bullhorn dedicated contrast tube of claim 5, wherein an end of the first semicircular wall distal from the intermediate portion is connected to a circular ring.

7. The trans-femoral approach bullhorn dedicated contrast tube of any of claims 1-4, wherein the stiffness of the first semicircular wall and the stiffness of the second semicircular wall each gradually increase from the bend toward the proximal end of the tube.

8. A trans-femoral approach bullhorn dedicated contrast tube according to any of claims 1-4, wherein both the inner and outer walls of the tube are provided with a hydrophilic coating.