CN215461269U - Puncture guide wire suitable for crooked radial artery - Google Patents

Abstract

The utility model discloses a puncture guide wire suitable for a bent radial artery, which comprises a head end cover, a plastic section and a main body section, wherein two ends of the plastic section are respectively connected with the head end cover and the main body section; wherein the plastic section is a hollow sleeve which is formed by winding a plurality of turns of filament; the main body section comprises a core wire and a hydrophilic coating wrapping the core wire. The guide wire has the characteristics of being suitable for passing through a curved radial artery.

Description

Puncture guide wire suitable for crooked radial artery

Technical Field

The utility model relates to the field of medical instruments, in particular to a puncture guide wire suitable for bending a radial artery.

Background

The existing radial artery puncture guide wire comprises a core wire 1 ' and a coating layer 2 ' wrapping the core wire 1 ', as shown in figure 1. Because the core wire has high rigidity and strong support, when the core wire is used and meets a curved radial artery, the core wire can keep the original motion path to enter, and the guide wire cannot be bent to enter the curved radial artery.

In view of the above problems, the present invention provides a puncture guide wire suitable for a curved radial artery, and the present invention is made based on the above problems.

Disclosure of Invention

The utility model provides a puncture guide wire suitable for a bent radial artery, which has the characteristic of being suitable for the bent radial artery; specifically, the utility model is realized by the following technical scheme:

a puncture guide wire suitable for bending a radial artery comprises a head end cover, a plastic section and a main body section, wherein two ends of the plastic section are respectively connected with the head end cover and the main body section; wherein the plastic section is a hollow sleeve which is formed by winding a plurality of turns of filament; the main body section comprises a core wire and a coating layer wrapped outside the core wire.

The spiral filaments are enclosed into a spring shape, the front end of the guide wire has flexible plasticity under the influence of the structural characteristics of the spring, and the advancing direction of the guide wire can be changed after the front end of the guide wire is shaped, so that the guide wire can pass through a curved radial artery without being blocked and has guiding property on the advancing direction of the guide wire; meanwhile, the core wire is adopted in the main guide wire body section, the core wire increases the supporting force of the front end of the guide wire, the guide wire is supported, the advancing force is conveniently transmitted to the guide wire, and the guide wire is supported to pass through.

Further, the length of the plastic segment ranges from 1cm to 1.5 cm.

The plastic section range is in the range, the guide wire front end is guaranteed to have certain flexibility, and meanwhile the whole supporting performance of the guide wire is also considered.

Further, one end of the core wire is sleeved into one end of the plastic section; the outer surface of the core wire which is not sleeved in the plastic section is coated with a coating.

Further, the length of the core wire ranges from 30 cm to 40cm, and the diameter of the core wire is 0.2 cm.

Further, the length of the plastic section sleeved by the core wire is 0.3-0.5 cm.

Furthermore, the material of the filament is stainless steel, and the material of the core wire is stainless steel.

Drawings

FIG. 1 is a schematic cross-sectional view of a prior art puncture guide wire suitable for use in a curved radial artery;

FIG. 2 is a schematic view of an embodiment of a puncture guide wire suitable for use in bending a radial artery in accordance with the present invention;

fig. 3 is a schematic cross-sectional view of an embodiment of a puncture guide wire suitable for a curved radial artery according to the present invention.

Wherein: 1' core filament; 2' coating; 1. coating; 2. core filament; 3. a filament; 4. a front end; 5. a back end; 6. a plastic section; 7. a main body section; 8. and a head end cover.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

As shown in fig. 2 and 3, according to the sequence of the guide wire entering the radial artery when in use, two end parts of the guide wire are respectively named as a front end 4 and a rear end 5, and the guide wire with the front end 4 firstly enters the radial artery; the radial artery puncture guiding guide wire sequentially comprises a head end cover 8, a plastic section 6 and a main body section 7 which are connected along the direction from the front end 4 to the rear end 5 of the guide wire; wherein the plastic section 6 is a hollow sleeve formed by the filament 3 spirally wound by a plurality of turns; the main body section 4 comprises a core wire 2 and a coating 1 wrapped outside the core wire 2, one end of the core wire 2 is sleeved into one end of the plastic section 6 to complete the connection of the main body section 7 and the plastic section 6, wherein only part of the plastic section 6 is sleeved into the core wire 2; the outer surface of the core wire 2 which is not sleeved in the plastic segment 6 is wrapped with the hydrophilic coating 1. The plastic section 6 leads the whole guide wire to enter the radial artery; the length of the plastic segment ranges from 1cm to 1.5 cm. The length of the core wire 2 sleeved into the plastic section 6 is 0.3-05 cm.

The filaments 3 are made of stainless steel.

The length of the core wire 2 ranges from 30 cm to 40cm, and the diameter of the core wire 2 is 0.2 cm.

The core wire 2 is made of stainless steel.

The above is the preferred embodiment of the present invention, and several other simple substitutions and modifications made on the premise of the inventive concept should be considered as falling into the protection scope of the present invention.

Claims (6)

1. a puncture guide wire suitable for curved radial artery, is characterized in that: comprise head end cover, plastic section and main body section, the two ends of plastic section connect head end cover and main body section respectively; Wherein plastic section is a hollow The sleeve is formed by several turns of the filament helix; the main body section includes a core wire and a coating wrapped around the core wire. 2 . The puncture guide wire suitable for curved radial artery according to claim 1 , wherein the length of the plastic segment ranges from 1 cm to 1.5 cm. 3 . 3. A puncture guide wire suitable for curved radial artery according to claim 1, characterized in that: one end of the core wire is sheathed with one end of the plastic section; the outer surface of the core wire that is not sheathed in the plastic section is Wrapped with a hydrophilic coating. 4 . The puncture guide wire suitable for curved radial artery according to claim 3 , wherein the length of the core wire is in the range of 30-40 cm, and the diameter of the core wire is 0.2 cm. 5 . The puncture guide wire suitable for curved radial artery according to claim 3 or 4, characterized in that: the length of the sheathed plastic section of the core wire is 0.3-0.5 cm. 6 . The puncture guide wire suitable for curved radial artery according to claim 3 , wherein the filament is made of stainless steel, and the core wire is made of stainless steel. 7 .

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