CN219110567U

CN219110567U - Improved guide wire for radial artery puncture

Info

Publication number: CN219110567U
Application number: CN202222093452.1U
Authority: CN
Inventors: 邓欣; 仲昕; 张书宁; 葛均波
Original assignee: Zhongshan Hospital Fudan University
Current assignee: Zhongshan Hospital Fudan University
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-06-02
Anticipated expiration: 2032-08-09

Abstract

The utility model provides an improved guide wire for radial artery puncture, which comprises a guide wire body and a head end, wherein the acute angle between the guide wire body and the head end is 15-40 degrees; the guide wire body comprises a guide wire hydrophilic section and a guide wire non-hydrophilic section which are connected in sequence, wherein the guide wire hydrophilic section is connected with the head end, the surfaces of the guide wire hydrophilic section and the head end are both provided with super-slip coatings, and the total length of the guide wire hydrophilic section and the head end is not more than 2cm. The improved guide wire can provide guide wire hand feeling feedback, accurately regulate and control the advancing direction of the end of the guide wire head, simultaneously give consideration to the trafficability of the guide wire and effectively improve the success rate of radial artery puncture.

Description

Improved guide wire for radial artery puncture

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an improved guide wire for radial artery puncture.

Background

The radial artery interventional therapy is a therapeutic mode between medical department and surgical treatment, and the therapeutic medicine and the equipment directly act on the focus part under the guidance of the interventional imaging system DSA, so that the method has the advantages of safety, minimally invasive effect, small side effect, low treatment cost, quick postoperative recovery and the like. Can be used for treating tumor, bone diseases and cardiovascular diseases. Radial artery-coronary angiography is the best coronary heart disease diagnosis and treatment mode at present, and an operating doctor can intuitively see the range and the lesion degree of coronary artery lesions, and the diagnosis rate of the coronary heart disease reaches more than 98 percent and is honored as a gold standard for coronary heart disease diagnosis by the medical community.

Currently commonly used radial artery puncture guidewires are mainly divided into two categories: super-smooth hydrophilic guide wires represented by Talcum company and non-super-smooth steel wires represented by Epson company. The ultra-smooth hydrophilic guide wire has good trafficability, but the guide wire has poor hand feel feedback effect after being mistakenly put into an interlayer, and is not easy to find in time; the non-ultra-smooth steel wire has good hand feeling feedback, but has poor trafficability. In addition, the head ends of the two types of guide wires are straight heads, the advancing direction of the guide wires cannot be accurately regulated, and if the blood vessel is slim or the puncture sheath angle is too large, the guide wires can be easily mistakenly inserted into the blood vessel intima to form blood vessel interlayer hematoma, so that puncture failure is caused.

Disclosure of Invention

In order to solve the problems, the utility model provides an improved guide wire for radial artery puncture, which not only can provide guide wire hand feeling feedback, but also can accurately regulate and control the advancing direction of a guide wire head end, and simultaneously gives consideration to the trafficability of the guide wire, and can effectively improve the success rate of radial artery puncture.

In order to achieve the above purpose, the utility model provides an improved guide wire for radial artery puncture, which comprises a guide wire body and a head end, wherein an acute angle between the guide wire body and the head end is 15-40 degrees;

the guide wire body comprises a guide wire hydrophilic section and a guide wire non-hydrophilic section which are connected in sequence, wherein the guide wire hydrophilic section is connected with the head end, the surfaces of the guide wire hydrophilic section and the head end are both provided with super-slip coatings, and the total length of the guide wire hydrophilic section and the head end is not more than 2cm.

Preferably, the acute angle between the head end and the guidewire body is 30 °.

Preferably, the head end length is no more than 2mm.

Preferably, the hydrophilic segment of the guidewire is no more than 2cm in length.

Preferably, the super-slip coating comprises one or more of polyethylene glycol coating, polysaccharide coating, polyvinylpyrrolidone coating and silicon coating.

Compared with the prior art, the utility model has the beneficial effects that:

1. the improved guide wire provided by the utility model is provided with the head end with a certain angle, the vascular wall is easily damaged by propping up when the end of the general linear guide wire encounters resistance, and the head end design bent at 15-40 degrees is beneficial to a user to accurately regulate and control the advancing direction of the head end of the guide wire, the bent head end is not easy to damage the vascular wall by propping up when contacting with the vascular wall, a doctor can more easily perceive the resistance so as to rotate the guide wire, the guide wire can advance towards the bending direction of the head end, and the accurate control of the advancing direction of the guide wire can be realized in a narrow radial artery.

2. The hydrophilic section and the head end of the guide wire in the improved guide wire are both provided with the super-slide coating, the hydrophilic performance is achieved, the total length of the hydrophilic section and the head end of the guide wire is not more than 2cm, compared with the prior art, the coating position of the super-slide coating is shortened, and on the basis that the super-slide coating is reserved, the resistance of the front end of the guide wire is reduced, and the vascular trafficability of the guide wire is enhanced, the longer non-hydrophilic section (without the super-slide coating) can provide better tactile feedback.

Drawings

FIG. 1 is a schematic view of an improved guidewire for radial artery puncture according to the present utility model;

wherein, 1 is a guide wire non-hydrophilic section, 2 is a guide wire hydrophilic section, 3 is a head end, alpha is an acute angle between the guide wire body and the head end, and the shadow part is an ultra-slip coating.

Detailed Description

The technical scheme of the present utility model will be described below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, of the implementations of the present application; and the structures shown in the drawings are merely schematic and do not represent a physical object. It is intended that all other embodiments obtained by those skilled in the art based on these embodiments of the present utility model fall within the scope of the present application.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in figure 1, the utility model provides an improved guide wire for radial artery puncture, which comprises a guide wire body and a head end 3, wherein the acute included angle between the guide wire body and the head end is 15-40 degrees; the guide wire body comprises a guide wire hydrophilic section 2 and a guide wire non-hydrophilic section 1 which are connected in sequence, wherein the guide wire hydrophilic section 2 is connected with a head end 3, and the surfaces of the guide wire hydrophilic section 2 and the head end are provided with super-slip coatings, so that the total length of the guide wire hydrophilic section and the head end is not more than 2cm. In the present utility model, the guidewire body is generally linear; in some embodiments of the present utility model, the improved guide wire is integrally formed, the non-hydrophilic segment 1 of the guide wire, the hydrophilic segment 2 of the guide wire and the hydrophilic head end 3 are sequentially connected, and the head end 3 is also linear.

In some embodiments of the utility model, the length of the guide wire body is 25-35cm, the total length of the hydrophilic section 2 and the head end of the guide wire is not more than 2cm, the length of the head end is 1-2mm, and the angle alpha is 15-40 degrees; in a preferred embodiment, the guide wire body is 30mm long, the hydrophilic segment is 1cm long, the head end is 1mm long, and the angle α is 30 °. In the angle alpha range defined by the utility model, the problem that the hose is easy to puncture when the traditional linear guide wire advances can be solved, the puncture hose is not beneficial to entering due to the overlarge angle, and the direction adjustment cannot be effected due to the overlarge angle.

In some embodiments of the utility model, the improved guide wire is integrally formed by non-hydrophilic materials, and the hydrophilic section 2 and the head end 3 of the guide wire are coated with one or more layers of super-slide coating on the surface of the non-hydrophilic materials, so that the resistance of the front end of the guide wire can be reduced, and the vascular trafficability of the guide wire can be enhanced; in one embodiment, the non-hydrophilic material is steel wire, which is low cost and provides a certain tactile feedback.

In some embodiments of the present utility model, the ultra-slip coating includes, but is not limited to, one or more of a polyethylene glycol coating, a polysaccharide coating, a polyvinylpyrrolidone coating, and a silicon coating. Various coatings known in the art that can be used to coat the surface of the guidewire and provide lubrication are suitable for use in the present device.

The use method of the improved guide wire is consistent with that of the traditional guide wire, the puncture hose enters a blood vessel and is fed into the improved guide wire along the puncture hose, and the improved guide wire can more accurately control the advancing of the attached blood vessel due to the fact that the head end of the improved guide wire is provided with a certain angle and the hydrophilic section is shorter, so that the non-hydrophilic section after the hydrophilic section is shortened can not only keep lubrication effect, but also provide better tactile feedback, and the success rate of puncture of the guide wire can be remarkably improved. The improved guide wire enters the blood vessel and then exits the hose, the puncture hard sheath is sent along the improved guide wire, and finally the guide wire and the puncture sheath inner core are pulled out, if the puncture sheath returns blood well, the radial artery puncture is successful.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. An improved guide wire for radial artery puncture is characterized by comprising a guide wire body and a head end, wherein an acute angle between the guide wire body and the head end is 15-40 degrees;

2. The improved guidewire of claim 1, wherein the acute included angle between the head end and the guidewire body is 30 °.

3. The improved guidewire of claim 1 or 2, wherein the head end length is no more than 2mm.

4. The improved guidewire of claim 1, wherein the hydrophilic segment of the guidewire is no more than 2cm in length.

5. The improved guidewire of claim 1, wherein the ultra-slip coating comprises one or more of a polyethylene glycol coating, a polysaccharide coating, a polyvinylpyrrolidone coating, and a silicon coating.