CN210844880U - Double-color straight-head guide wire - Google Patents

Abstract

The utility model relates to a double-color straight-end guide wire, which comprises a core wire, wherein the core wire comprises a straight section and a taper section, the straight section is wrapped with a plastic coating, and the taper section is wrapped with a soft-end layer; the soft head layer consists of a plurality of first soft heads and second soft heads, the first soft heads and the second soft heads are arranged at intervals, and the first soft heads and the second soft heads are different in color; the first soft head, the second soft head and the plastic-coated coating have the same outer diameter, and the plastic-coated coating and the soft head layer are in straight transition. The soft guide wire head is formed by combining the soft heads with two different colors at intervals, so that when the zebra guide wire is inserted into a natural cavity channel of a person, the length of the zebra guide wire inserted into a narrow blocking section or the zebra guide wire inserted into a biliary tract can be calculated according to the soft head identification band on the guide wire with the help of an endoscope, thereby facilitating the medical staff to accurately judge the lesion range, and the length of a bracket used for relieving the narrow or blocking, improving the accuracy of the operation and saving the operation time.

Description

Double-color straight-head guide wire

Technical Field

The utility model relates to a medical treatment field, concretely relates to double-colored straight first seal wire.

Background

The interventional therapy is an operation of establishing a conveying path by using a guide wire under the guidance of medical imaging equipment, and conveying an instrument or a diagnostic instrument into a human body through a catheter to diagnose and locally treat a focus part.

Due to the continuous development of interventional medicine, in the process of endoscopic diagnosis and treatment of urinary tract and digestive tract, the guide wire plays an important role in guiding and guiding the guide wire to the deep ureter, renal pelvis or bile duct and biliary tract, and plays an indispensable role in the subsequent treatment processes of catheter introduction, contrast agent injection, basket insertion and the like. In the field of interventions, the end proximal to the operator is often referred to as the proximal end and the end distal to the operator as the distal end.

In the actual clinical process, diseases exist, such as the stenosis or blockage of natural cavities and ducts of a human body caused by tumors, inflammation stenosis, external pressure and the like, the symptoms of the stenosis or blockage need to pass through a diseased part under an endoscope or under the assistance of X rays in the modes of ultra-smooth guide wire guidance, catheter penetration and the like so as to finish diagnosis and treatment, and in the treatment process, medical staff need to know the length of the stenosis or the blocked part so as to achieve accurate treatment. The existing estimation mode is to roughly estimate by using the height of a human vertebral body or the outer diameter of an endoscope and the like as references, and cannot accurately judge through endoscope direct vision at all.

On the market, the structure of zebra guide wire is as shown in figure 1, including core silk 11, core silk 11 includes tapering section and straight section, and the tapering section is for contacting patient diagnosis position, and straight section controls position department for medical personnel, and tapering section outside is equipped with soft head 12, and soft head 12 is medical polyurethane material coating and hydrophilic coating, and straight section outside adopts the PTFE tubular product heat shrink that is printed with the zebra stripe levigating on the plug, medical polyurethane material plastic-coated coating 13 cladding is in the plug surface to at the coating of medical polyurethane material plastic-coated coating 13 surface hydrophilic coating.

At present, the common zebra guide wires in the market have the following defects:

1. in the prior art, the zebra guide wire can not accurately extend out of the endoscope in the condition of direct vision of the endoscope, and the length of a narrow and blocked section can not be judged;

2. the length of the plastic-coated section covered by the medical polyurethane material and the hydrophilic coating is relatively short, and the transition section of the soft head and the plastic-coated coating has a step/break difference, so that the soft head is not beneficial to guiding and leading-in operation, and the risk of mucosa injury caused by contact with mucosa tissues and sliding of the urinary tract, the digestive tract and the respiratory tract exists.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defect of the prior art is overcome, a double-color straight-head guide wire is provided, and the problems that in the prior art, the length of an endoscope cannot be extended out by an accurate guide wire under the condition that the endoscope is under direct vision, and the length of a narrow and blocked section cannot be judged are solved.

The utility model provides a technical scheme that its technical problem adopted is: a double-color straight-head guide wire comprises a core wire, wherein the core wire comprises a straight section and a taper section, a plastic coating is wrapped outside the straight section, and a soft-head layer is wrapped outside the taper section;

the soft head layer consists of a plurality of first soft heads and second soft heads, the first soft heads and the second soft heads are arranged at intervals, and the first soft heads and the second soft heads are different in color;

the first soft head, the second soft head and the plastic-coated coating have the same outer diameter, and the plastic-coated coating and the soft head layer are in straight transition.

Furthermore, hydrophilic coating layers are respectively coated on the outer surfaces of the first soft head, the second soft head and the plastic coating layer.

Further, the first soft head and the second soft head are made of polyurethane materials.

Further, the core wire is made of nickel titanium material.

Furthermore, the plastic-coated coating is made of PTFE material.

The utility model has the advantages that:

the utility model discloses a straight first seal wire of double-colored, the soft head of seal wire is formed by the combination of the soft first interval of two kinds of different colours, stretch into people's natural chamber way with the zebra seal wire like this, can calculate the length that the zebra seal wire stretched into narrow jam section, or deep biliary tract according to the soft first sign area on the seal wire under the help of scope, thereby made things convenient for medical staff accuracy to judge the pathological change scope, relieve the length of narrow or jam used support, the precision of operation has been improved, when saving the operation.

Due to the adoption of the structure of the multi-section soft head, the overall length of the soft head is longer and is closer to the tail end of the core wire grinding, so that the peripheral transition of the guide wire is smoother without obvious steps, and the propelling property and the passing property of the guide wire are improved.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of a conventional straight-headed guidewire;

wherein, 11, core wire, 12, soft head, 13, plastic coating;

fig. 2 is a schematic view of the straight guide wire of the present invention;

the plastic coating comprises a core wire 1, acore wire 2A, a firstsoft head 2B, a secondsoft head 3 and a plastic coating layer.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 2, the bicolor straight-end guide wire comprises a core wire 1, wherein the core wire 1 comprises a straight section and a taper section, aplastic coating 3 is wrapped outside the straight section, and a soft-end layer is wrapped outside the taper section.

The soft head layer is composed of a plurality of first soft heads and secondsoft heads 2B, the first soft heads and the secondsoft heads 2B are arranged at intervals, the first soft heads are black, and the secondsoft heads 2B are yellow; the first soft head, the secondsoft head 2B and theplastic coating layer 3 have the same outer diameter, and the plastic coating layer and the soft head layer are in straight transition.

Specifically, in order to reduce the friction force when the guide wire moves in the body cavity, hydrophilic coating layers are coated on the outer surfaces of the first soft head, the secondsoft head 2B and theplastic coating layer 3.

Specifically, the first soft head and the secondsoft head 2B are made of polyurethane material. The core wire 1 is made of nickel titanium material. Theplastic coating layer 3 is made of PTFE material.

In this embodiment, the number of the first soft heads is 4, and the number of the secondsoft heads 2B is 3; the 3 secondsoft heads 2B are arranged among the 4 first soft heads at intervals, the first soft head which is used as the front end is wrapped at the foremost end of the taper section of the core wire 1, and the first soft head at the rearmost end is in straight transition with theplastic coating layer 3.

The utility model discloses a straight first seal wire of double-colored, the soft head of seal wire is formed by the combination of the soft first interval of two kinds of different colours, stretch into people's natural chamber way with the zebra seal wire like this, can calculate the length that the zebra seal wire stretched into narrow jam section, or deep biliary tract according to the soft first sign area on the seal wire under the help of scope, thereby made things convenient for medical staff accuracy to judge the pathological change scope, relieve the length of narrow or jam used support, the precision of operation has been improved, when saving the operation.

Due to the adoption of the structure of the multi-section soft head, the overall length of the soft head is longer and is closer to the grinding tail end of the core wire 1, so that the peripheral transition of the guide wire is smoother without obvious steps, and the propelling property and the trafficability property of the guide wire are improved.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (5)

1. A double-color straight-end guide wire is characterized by comprising a core wire, wherein the core wire comprises a straight section and a taper section, the straight section is wrapped with a plastic coating, and the taper section is wrapped with a soft-end layer;

the soft head layer consists of a plurality of first soft heads and second soft heads, the first soft heads and the second soft heads are arranged at intervals, and the first soft heads and the second soft heads are different in color;

the first soft head, the second soft head and the plastic-coated coating have the same outer diameter, and the plastic-coated coating and the soft head layer are in straight transition.

2. The bicolor straight-nose guide wire of claim 1, wherein the outer surfaces of the first soft nose, the second soft nose and the plastic coating are coated with hydrophilic coating layers.

3. The bicolor straight-nose guidewire as claimed in claim 1, wherein the first soft nose and the second soft nose are made of polyurethane material.

4. The bicolor straight-start guidewire according to claim 1, wherein the core wire is made of a nickel titanium material.

5. The bicolor straight-nose guidewire of claim 1, wherein the plastic-coated coating is made of PTFE material.

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