CN215822057U - Guide catheter with MARK point suitable for ultrasonic guided cardiac intervention - Google Patents

Abstract

Translated fromChinese

适用于超声引导心脏介入治疗的带MARK点的导引导管，包括主体管、护管、接头和手柄，主体管连接于护管上，接头设置于护管的端部，所述主体管的前端为远端弯曲管，远端弯曲管上开有渗流孔，其特征在于，所述远端弯曲管中埋设有不少于2道金属标记环，金属标记环等间距设置。该导引导管解决了超声引导下在血管种进行定位的问题，同时该导引导管表面平滑状态，防止外壁不平滑而导致血管的损伤以及内壁的不平滑而导致导丝难以通过的问题。

A guiding catheter with MARK points suitable for ultrasound-guided cardiac interventional therapy, including a main body tube, a protective tube, a joint and a handle, the main body tube is connected to the protective tube, the joint is arranged at the end of the protective tube, and the front end of the main body tube It is a distal curved pipe, and seepage holes are opened on the distal curved pipe. It is characterized in that no less than two metal marking rings are embedded in the distal curved pipe, and the metal marking rings are arranged at equal intervals. The guiding catheter solves the problem of positioning the blood vessel under ultrasound guidance, and at the same time, the surface of the guiding catheter is smooth, preventing the damage of the blood vessel caused by the uneven outer wall and the problem that the guide wire is difficult to pass due to the uneven inner wall.

Description

Guide catheter with MARK point suitable for ultrasonic guided cardiac intervention

Technical Field

The utility model relates to the field of medical instruments, in particular to a guide catheter with a MARK point, which is suitable for ultrasonic-guided cardiac interventional therapy

Background

The guide catheter is one of the key instruments for percutaneous cardiac intervention treatment, is a long rubber tube and is mainly used for establishing an intervention treatment track in the heart and blood vessels in cooperation with a guide wire. The guiding catheter generally comprises a connector tube, a protective tube, a main tube, a distal tube and a head end, wherein the main tube has good torsion control performance, pushing performance and X-ray detectability, the main tube is generally made of high polymer materials such as nylon or polyurethane containing a stainless steel mesh in the middle, the distal tube has good shape memory, flexibility and X-ray detectability of the head end, and the head end has good flexibility to prevent blood vessels from being damaged.

As is well known, the X-ray guided cardiac interventional therapy has obvious radiation injury to both patients and operators, and in order to further reduce medical injury, in recent years, the pure ultrasound guided cardiac interventional therapy is gradually developed and popularized. In the operation process, the guiding catheter needs to be inserted into a blood vessel and a heart under the guidance of ultrasound and reaches a designated position, but the ultrasound scanning range is a plane and limited by the limitation of the guiding catheter, and the whole appearance of the guiding catheter is not as good as that of an X-ray. This has the disadvantage that the depth of insertion of the guide catheter is not easily observed directly. The heart valve and the myocardial tissue are easily damaged due to the fact that the catheter is inserted too deeply, great medical risks exist, and the fact that the catheter is inserted too shallowly is not beneficial to track building. However, the existing guiding catheter has no depth mark capable of ultrasonic lower development, which results in that the insertion and placement depth of the guiding catheter cannot be known, which is not beneficial to operation and increases the operation risk. The guiding catheter suitable for the ultrasonic guiding interventional therapy is provided with a depth mark which can be clearly developed under ultrasonic, and the depth mark cannot be displayed through ultrasonic when scales are marked on the surface of the guiding catheter; the metal wire is directly arranged on the guide catheter, so that the smoothness of the outer wall of the catheter body cannot be ensured; the metal wire is arranged on the inner wall of the guide catheter, so that the smoothness of the inner wall cannot be guaranteed, and the guide wire cannot pass through the metal wire easily. At present, no special guide catheter is specially designed for ultrasonic guided congenital heart disease interventional therapy.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model designs the guide catheter with the MARK point, which is suitable for the ultrasonic-guided cardiac intervention treatment, the guide catheter solves the problem of positioning in blood vessels and a heart cavity under the ultrasonic guidance, and simultaneously, the outer wall and the inner wall of the guide catheter are both in a smooth state, so that the problems that the blood vessels are damaged due to the uneven outer wall and guide wires are difficult to pass due to the uneven inner wall are prevented.

In order to achieve the technical effects, the utility model is realized by the following technical scheme:

take guide catheter of MARK point suitable for supersound guide heart intervenes treatment, including main part pipe, pillar, joint and handle, main part union coupling is on the pillar, and the joint sets up in the tip of pillar, the front end of main part pipe is distal end bending tube, and it has the seepage hole to open on the distal end bending tube, its characterized in that, it is no less than 2 metal MARK rings to bury underground in the distal end bending tube, and the metal MARK ring is equidistant setting.

Furthermore, the metal marking rings are provided with 6 channels, and the distance between the metal marking rings is 1 cm.

Further, 6 the metal mark ring is first metal mark ring, second metal mark ring, third metal mark ring, fourth metal mark ring, fifth metal mark ring and sixth metal mark ring in proper order, and first metal mark ring is fixed in the head end of distal end crooked pipe, and first metal mark ring is a wide becket, and the width of first metal mark ring is 2mm, and second metal mark ring, third metal mark ring, fourth metal mark ring, fifth metal mark ring and sixth metal mark ring comprise 1, 2, 3, 4 and 5 wires respectively, and the interval between the wire is 1 mm.

Further, the distal bending tube is L-shaped.

The utility model has the beneficial effects that: the guiding catheter solves the problem of positioning in a blood vessel under the guidance of ultrasound, the metal marking ring is embedded in the bent tube at the far end, the outer surface and the inner surface of the metal marking ring are both in a smooth state, and the problems that the blood vessel is damaged due to the fact that the outer wall is not smooth and a guide wire is difficult to pass due to the fact that the inner wall is not smooth are prevented.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of a guiding catheter with MARK points suitable for ultrasound guided cardiac intervention

In the drawings, the components represented by the respective reference numerals are listed below:

1-main body tube, 2-protective tube, 3-joint, 4-handle, 5-metal marking ring, 6-seepage hole, 51-first metal marking ring, 52-second metal marking ring, 53-third metal marking ring, 54-fourth metal marking ring, 55-fifth metal marking ring and 56-sixth metal marking ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the guiding catheter with MARK point suitable for ultrasound-guided cardiac interventional therapy comprises a main body tube 1, a protective tube 2, ajoint 3 and a handle 4, wherein the main body tube 1 is connected to the protective tube, the joint is arranged at the end of the protective tube, the front end of the main body tube 1 is a far-end bending tube, aseepage hole 6 is arranged on the far-end bending tube, 6 metal markingrings 5 are embedded in the far-end bending tube, the metal marking rings are arranged at equal intervals, and the interval between the metal markingrings 5 is 1 cm.

The 6 metal markingrings 5 comprise a firstmetal marking ring 51, a second metal marking ring 52, a third metal marking ring 53, a fourth metal marking ring 54, a fifthmetal marking ring 55 and a sixthmetal marking ring 56, the firstmetal marking ring 51 is fixed at the head end of the far-end bent pipe, the firstmetal marking ring 51 is a metal ring with the width of 2mm, the second metal marking ring 52, the third metal marking ring 53, the fourth metal marking ring 54, the fifthmetal marking ring 55 and the sixthmetal marking ring 56 are respectively composed of 1, 2, 3, 4 and 5 metal wires, and the distance between the metal wires is 1 mm. The distal bending tube is L-shaped.

Because themetal marking ring 5 is made of metal material, the density of the metal marking ring is far higher than the density of a human body, the metal marking ring can be obviously displayed under the guidance of ultrasonic waves, for example, the firstmetal marking ring 51 displays a ring-shaped mark with wider bandwidth, and the second metal marking ring 52, the third metal marking ring 53, the fourth metal marking ring 54, the fifthmetal marking ring 55 and the sixthmetal marking ring 56 respectively display 1, 2, 3, 4 and 5 ring-shaped marks with narrower bandwidth, so that an operator can conveniently judge the depth distance of the contrast catheter through different ring-shaped marks, and further the operator can conveniently control the operation process.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (4)

1. Take guide catheter of MARK point suitable for supersound guide heart intervenes treatment, including main part pipe, pillar, joint and handle, main part union coupling is on the pillar, and the joint sets up in the tip of pillar, the front end of main part pipe is distal end bending tube, and it has the seepage hole to open on the distal end bending tube, its characterized in that, it is no less than 2 metal MARK rings to bury underground in the distal end bending tube, and the metal MARK ring is equidistant setting.

2. The MARK catheter for ultrasound guided cardiac intervention of claim 1, wherein there are 6 rings of metal markers spaced 1cm apart.

3. The MARK catheter adapted for ultrasound guided cardiac intervention of claim 2, wherein the 6 metallic marker rings are sequentially a first metallic marker ring fixed to the tip of the distal bending tube, a second metallic marker ring fixed to the tip of the distal bending tube, a third metallic marker ring fixed to the distal bending tube, a fourth metallic marker ring fixed to the distal bending tube, a fifth metallic marker ring fixed to the distal bending tube, and a sixth metallic marker ring consisting of 1, 2, 3, 4, and 5 wires, respectively, with a spacing of 1mm therebetween.

4. The MARK point catheter for use in ultrasound guided cardiac intervention according to any of claims 1-3, wherein the distal bending tube is L-shaped.

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