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Distal passage guide catheter

A channel and distal technology, applied in the direction of catheters, coatings, etc., can solve the problems of lack of stable support and anti-deformation, and achieve the effect of enhancing the hand feeling of pinching, preventing slipping, and reducing damage

Inactive Publication Date: 2021-07-23
深圳麦普奇医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a distal access guide catheter to solve the problem of not having the function of stable support and anti-deformation in the above-mentioned background technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: See Figure 1-4 , the distal access guide catheter, including a PU outer tube 1, one side of the PU outer tube 1 is fixedly connected with a nylon outer tube 2, the outside of the nylon outer tube 2 is sleeved with a marking ring 4, and the other side of the PU outer tube 1 A stress buffer sleeve 5 is fixedly connected, one side of the stress buffer sleeve 5 is provided with a Luer connector 7, and one side of the Luer connector 7 is provided with an introduction sheath 8, between the Luer connector 7 and the stress buffer sleeve 5 A connecting pipe 6 is provided, one end of the PU outer pipe 1 is provided with a shaping needle 9, and the inside of the PU outer pipe 1 is provided with a stable support anti-deformation structure;

[0026] see Figure 1-4 , the distal access guide catheter also includes a stable support anti-deformation structure, the stable support anti-deformation structure includes an inner tube 13, the inner tube 13 is arranged inside the ...

Embodiment 2

[0030] Embodiment 2: The exterior of one side of the nylon outer tube 2 is provided with a hydrophilic coating 3;

[0031] Specifically, such as figure 1 and image 3 As shown, when the catheter is inserted into the blood vessel, the nylon outer tube 2 at the tip of the catheter directly contacts the inside of the blood vessel, and the contact surface between the nylon outer tube 2 and the vascular mucosa is evenly coated with methyl ethyl ether anhydrous maleic acid copolymer to make it hydrophilic The coating 3 increases the hydrophilicity of the nylon outer tube 2 to make it more lubricated, reduces the friction between the tip and the blood vessel, reduces the damage to the inside of the blood vessel, and realizes the function of the tip lubricating and preventing scratching of the blood vessel.

Embodiment 3

[0032] Embodiment 3: The upper and lower ends of the Luer connector 7 are respectively provided with joint anti-slip structures 14. The joint anti-slip structures 14 are composed of a fixed sleeve 1401, an installation groove 1402, a silicone cushion 1403 and an anti-slip groove 1404. The fixed sleeve 1401 is respectively sleeved on the At the upper and lower ends of the Luer connector 7, the outside of the fixed sleeve 1401 is provided with a mounting groove 1402, the inside of the mounting groove 1402 is fixedly connected with a silicone cushion 1403, and the outside of the silicone cushion 1403 is provided with multiple groups of anti-slip grooves 1404;

[0033] The anti-skid grooves 1404 are arranged at equal intervals, and the fixed sleeves 1401 are symmetrically distributed about the transverse centerline of the Luer connector 7;

[0034] Specifically, such as figure 1 and Figure 4 As shown, the fixing sleeve 1401 is sleeved on the outside of the Luer connector 7. The ...

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Abstract

The invention discloses a distal passage guiding catheter. The guide catheter comprises a PU outer tube, one side of the PU outer tube is fixedly connected with a nylon outer tube, the nylon outer tube is sleeved with a marking ring, the outer portion of one side of the nylon outer tube is provided with a hydrophilic coating, a connectable tube is arranged between a Luer taper and a stress buffering sleeve, and a stable supporting anti-deformation structure is arranged in the PU outer tube. According to the distal passage guiding catheter, a middle layer, a spring weaving layer, a net-shaped weaving layer and an inner tube are arranged, when the catheter is used, the middle layer formed between the inner tube and the outer tube provides a space for filling of an inner supporting layer, the spring weaving layer is made of nickel-titanium alloy, the net-shaped weaving layer is net-shaped SUS304V, the spring weaving layer and the net-shaped weaving layer support each other; and on the premise of ensuring internal tenacity, the flexibility of the device is guaranteed, the catheter can be flexibly bent in the blood vessel, the stable supporting and deformation preventing functions are achieved, and the problem that the catheter does not have the stable supporting and deformation preventing functions is solved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a distal access guiding catheter. Background technique [0002] With the development of science and technology and the progress of society, medical technology has also made great progress, especially the continuous innovation of precision medical equipment, which provides an opportunity for the treatment of many difficult and miscellaneous diseases, such as the emergence of guiding catheters, for diseases such as thrombosis It provides convenience, but the traditional guide catheter has poor toughness, which cannot maintain support while ensuring flexibility, and the head of the outer tube is relatively hard, which is easy to cause damage to the inner mucosa of the blood vessel during the operation, and the joint is fixed. It cannot be disassembled, and the flexibility is poor in complex surgical environments. The present invention makes adjustments to the above problems,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61M25/01
CPCA61M25/0023A61M25/0045A61M25/0105A61M25/0113
Inventor 孙丽娜毛玉兰蔡珂
Owner 深圳麦普奇医疗科技有限公司
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