Bending adjusting handle and bending adjustable catheter

Abstract

The invention provides a bending adjusting handle and a bending adjustable catheter with the bending adjusting handle. The bending adjustable catheter comprises a catheter body, the bending adjustinghandle and at least two traction parts, wherein at least two bending adjustable sections arranged at an interval are arranged at the remote end of the catheter body; the bending adjusting handle comprises a driving mechanism and a control mechanism connected with the driving mechanism; the remote end of each traction part is connected with one of the bending adjustable sections; and the near end of each traction part is connected with a secondary sliding part of the driving mechanism of the bending adjusting handle. By manipulating the bending adjusting handle, the bending adjustable sectionscan be simultaneously driven to be bent to form different composite bending shapes, or one bending adjustable section is separately driven to be bent to finely adjust the bending shape of the corresponding bending adjustable section, so that operations such as a left coronary artery intervention operation and a right coronary artery intervention operation with different requirements on morphologies of the remote end of the bending adjustable catheter can be performed by using one same bending adjustable catheter, and individual differences of physiological anatomical structures of lumens of different paints can be met.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an adjustable bending handle and an adjustable bending catheter. Background technique [0002] Most of the currently widely used coronary guidance catheters or angiography catheters are pre-shaped catheters, and the distal end of the catheter includes at least two pre-shaped curved sections. However, existing pre-shaped catheters such as Figure 1a The JudkinsLeft catheter shown in is suitable for left coronary intervention only, Figure 1b The Judkins Right in Judkins Right can only be applied to the right coronary artery interventional operation. Therefore, to perform the interventional operation of the left coronary artery and the right coronary artery, the pre-shaped catheter must be replaced. After two punctures, the two pre-shaped catheters are respectively Entering the left coronary artery and the right coronary artery, the operation process takes a long time and the op...

AI Technical Summary

Problems solved by technology

However, existing pre-shaped catheters such as Figure 1a The JudkinsLeft catheter shown in is suitable for left coronary intervention only, Figure 1b The Judkins Right in Judkins Right can only be applied to the right coronary artery interventional operation. Therefore, to perform the interventional operation of the left coronary artery and the right coronary artery, the pre-shaped catheter must be replaced. After two punctures, the two pre-shaped catheters are respectively Entering the left coronary artery and the right coronary artery, the operation process takes a long time and the operation is more complicated

In addition, in the actual clinical use, individual differences in the anatomical structure of the human body lumen are often encountered, and even the pre-shaped catheter is difficult to adapt to the left or right coronary artery of different people.

In order to prevent such problems during the operation, doctors usually prepare a variety of pre-shaped catheters of different specifications, such as Figure 2a The specifications of the catheters from left to right in the middle are JL6.0, JL5.0, JL4.5, JL4.0, JL3.5 and JL3.0 (where JL means the Judkins series catheters that can intervene in the left coronary artery, and the catheters after JL The number represents the distance between two pre-shaped bends), such as Figure 2b The catheter specifications from left to right in the middle are JR 6.0, JR5.0, JR4.5, JR4.0, JR3.5 and JR3.0 (where JR indicates the Judkins series catheters that can intervene in the right coronary artery, and the number after JR Indicates the distance between two pre-shaped bends), once the shape of the distal end of the selected pre-shaped catheter of a certain specification is found to be unsuitable, the catheter is withdrawn and replaced with a pre-shaped catheter of other specifications , and sometimes it is even necessary to reshape the distal end of the catheter into the desired shape at the surgical site according to the specific physiological anatomy of the patient's left or right coronary artery, which further increases the complexity of the surgical procedure and prolongs the patient's exposure to X-rays. Time under radiation, not good for patient's health

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