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Coronary artery delivery catheter, catheter and device for cardiac intervention treatment

A technology of coronary artery and delivery catheter, applied in the field of catheter and device, coronary delivery catheter, can solve the problems of lack, operator's difficult control, complexity and so on

Active Publication Date: 2017-08-29
J ROBOTICS MEDICAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The guide wire can reach the most distal end of the coronary artery, but the guide catheter can usually only be located at the port of the diseased coronary artery and cannot penetrate into the distal end of the coronary artery
In this way, when the coronary artery balloon dilation catheter or stent delivery system enters from the coronary artery port to the distal end of the coronary artery, there is no guidance and support of the guide catheter, and the coronary artery balloon dilation catheter or stent delivery system enters from the coronary artery port. The operation at the distal end of the coronary artery becomes complicated, and it is difficult for the operator to control it, which may easily lead to failure of the operation
[0004]Therefore, there is still a lack of a safe and effective product in the art to deliver coronary artery balloon dilatation catheter or stent delivery system to the distal end of coronary artery diseased

Method used

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  • Coronary artery delivery catheter, catheter and device for cardiac intervention treatment
  • Coronary artery delivery catheter, catheter and device for cardiac intervention treatment
  • Coronary artery delivery catheter, catheter and device for cardiac intervention treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0179] Such as Figure 1-11d As shown, the coronary artery delivery catheter 1 for cardiac intervention treatment in this embodiment includes a hollow tube 2 and a long and thin metal rod 3 . The effective length of the coronary delivery catheter is 150 cm.

[0180] The hollow tube 2 is used to insert a coronary artery balloon dilatation catheter or a stent delivery system. The hardness of the tube body section 4 gradually decreases from the rear end to the front end. A developing ring is provided at both ends of the hollow tube 2, and the developing ring is set at X Visible under light. The hollow tube 2 includes a tube body section 4 and a bevel section 5 . Such as Image 6 As shown, the front hollow tube 2 and the rear metal rod 3 are welded to the front end of the rear metal rod 3 through the oblique section 5 at the rear end of the front hollow tube 2 . An operating handle 7 is provided at the rear of the metal rod 3 , and the operating handle 7 is convenient for the ...

Embodiment 2

[0190] Such as Figure 12 with Figure 13 As shown, the catheter for cardiac intervention in this embodiment includes the coronary artery delivery catheter 1 and the guide catheter 14 as described in Embodiment 1, the coronary artery delivery catheter 1 is placed inside the leader catheter, and the coronary artery delivery catheter 1 slides inside the guide catheter 14. When in use, the front end of the guide catheter 14 is at the entrance of the coronary artery branch 18, and the coronary artery delivery catheter 1 enters the blood vessel branch 18 and reaches the vicinity of the lesion.

[0191] Compared with the original guide catheter 14 only, the catheter for cardiac intervention in this embodiment has the coronary artery delivery catheter 1 entering the blood vessel branch 18 and reaching the vicinity of the lesion 19, the balloon catheter 20 or the stent in the blood vessel lumen due to The supporting force provided by the coronary artery delivery catheter 1 has a bet...

Embodiment 3

[0193] Such as Figures 14a-14bAs shown, the structure of the coronary artery delivery catheter 1 of this embodiment is the same as that of the first embodiment, and the difference is that the rear portion of the coronary artery delivery catheter 1 of this embodiment is also provided with a limiting device 22, and the limiting device 22 can be located at On the elongated metal rod 3 at the rear, and the size of the limiting device 22 is greater than the aperture of the lumen opening at the tail of the guide catheter 14, so that the limiting device 22 cannot enter the lumen at the tail of the guiding catheter 14. And the distance between the stopper 22 and the marking ring at the front part of the coronary artery delivery catheter 1 is less than the total length of the guide catheter 14, ensuring that the rear end marker ring 6b of the hollow tube 2 at the front part of the coronary delivery catheter 1 is limited by the stopper 22 Does not protrude to the outside of the guide c...

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Abstract

The invention discloses a coronary artery delivery catheter, a catheter and a device for cardiac intervention treatment. Particularly, the coronary artery delivery catheter comprises a hollow pipe and a metal rod; the hollow pipe comprises a pipe body section and an oblique opening section, and the hollow pipe is used for containing a coronary artery balloon dilatation catheter or a stent delivery system; the length of the hollow pipe section ranges from 220 mm to 380 mm, the length of the oblique opening section ranges from 2 mm to 6 mm, the outer diameter of the hollow pipe ranges from 1.60 mm to 1.80 mm, the inner diameter of the hollow pipe ranges from 1.00 mm to 1.64 mm, and the effectively length of the coronary artery delivery catheter ranges from 135 cm to 165 cm; the hardness of the pipe body section gradually reduced from the rear end to the front end; an oblique opening is formed in the rear end of the oblique opening section, and the included angle formed by the oblique opening and the hollow pipe in the axial direction is alpha, wherein the alpha is larger than or equal to 20 degrees and smaller than or equal to 90 degrees; the rear end of the oblique opening and the front end of the metal rod are fixed through welding, and the hollow pipe and the metal rod form a fixed whole body. The coronary artery delivery catheter can be used together with a guiding catheter, lengthens the guiding catheter and delivers the coronary artery balloon dilatation catheter, a stent and the like to the more distal position of the coronary artery and position closer to a diseased region.

Description

technical field [0001] The present invention relates to the field of medical equipment, and more particularly relates to a coronary artery delivery catheter, catheter and device for cardiac interventional treatment. Background technique [0002] When interventional treatment of coronary artery stenosis or intravascular stent restenosis, it is necessary to dilate the stenosis with a coronary balloon dilation catheter or stent. [0003] During the current operation, the coronary artery balloon dilatation catheter or stent delivery system is sent to the lesioned coronary artery through a guide wire and a guide catheter. The guide wire can reach the most distal end of the coronary artery, but the guide catheter can usually only be located at the port of the diseased coronary artery and cannot go deep into the distal end of the coronary artery. In this way, when the coronary artery balloon dilation catheter or stent delivery system enters from the coronary artery port to the dis...

Claims

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Application Information

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IPC IPC(8): A61M29/04A61F2/966
CPCA61M29/02A61F2/966A61M2029/025A61M25/0662A61M2025/0004
Inventor 付亮辉
Owner J ROBOTICS MEDICAL LTD
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