Contrast guide wire and preparation method thereof

A guide wire and radiography technology, which is applied in the direction of catheters, guide wires, and other household appliances, can solve the problems of easy thrombosis, high resistance, and insufficient smoothness, so as to avoid thrombosis, good tactile feedback, and lubrication sex high effect

Inactive Publication Date: 2020-01-14
APT MEDICAL HUNAN INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In clinical application, the design of the surface spring and PTFE coating, the resistance of the guide wire to the lesion or the delivery of other matching devices is relatively large

Method used

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  • Contrast guide wire and preparation method thereof
  • Contrast guide wire and preparation method thereof
  • Contrast guide wire and preparation method thereof

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Please refer to Figure 1~6 , figure 1 Schematic diagram of the structure of the contrast guide wire provided by the present invention; figure 2 for figure 1 Partial enlarged view of A in middle; image 3 for figure 1 Sectional view in the Z-Z direction; Figure 4 Schematic diagram of the structure of the core wire provided by the present invention; Figure 5 for Figure 4 Sectional view in Y-Y direction; Image 6 for Figure 4 Sectional view ...

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Abstract

The invention discloses a contrast guide wire and a preparation method thereof. The contrast guide wire includes an inner core wire, an outer distal spring coil sheath, and an outer proximal polymer sheath of which the surface is provided with a hydrophilic coating. The contrast guide wire provided by the invention is preformed as a J-shaped bent portion, so that the contrast guide wire is difficult to enter arterial bifurcations and prevents damage to inner walls of blood vessels. The J-shaped bent portion can be straightened when the spring coil sheath is squeezed, thereby facilitating the contrast guide wire to enter into and fit with instruments. The spring sheath at head end is designed to improve tactile feedback of an operator. Meanwhile, the hydrophilic coating on the surface of the contrast guide wire improves lubricity and allows the contrast guide wire to easily reach a target site of blood vessels.

Description

technical field [0001] The invention relates to the technical field of medical devices, more specifically, to a contrast guide wire and a preparation method thereof. Background technique [0002] Coronary artery disease is a common clinical problem in the field of interventional treatment of coronary heart disease. Interventional diagnosis and treatment through guide wire delivery and equipment is one of the rapidly developing treatment methods. [0003] At present, the contrast guide wire sold on the market, the first one is a nickel-titanium alloy core, the outer layer is polymer, and the bending type is J-bend. It is inconvenient when the wire enters the sheath or catheter, prolonging the operation time. The second type is stainless steel core, outer spring, PTFE hydrophobic coating on the surface, and the bend type is J-bend design. In clinical application, the design of the surface spring and PTFE coating, the resistance of the guide wire to reach the lesion or transp...

Claims

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Application Information

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IPC IPC(8): A61M25/09B21F45/00A61L31/06A61L31/10
CPCA61L31/06A61L31/10A61M25/0009A61M25/0045A61M25/008A61M25/09A61M2025/0046A61M2025/0081A61M2025/09108A61M2025/09133A61M2025/09175B21F45/00C08L75/04C08L67/04C08L71/00C08L39/06C08L33/02C08L71/02
Inventor 窦克非成正辉易沛林魏磊山黎宇颜世平
Owner APT MEDICAL HUNAN INC
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