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A kind of adjustable bending left atrial appendage occluder delivery system and using method

A technology of a delivery system and an occluder, which is applied in the field of medical devices, can solve the problems of low efficiency, complicated lifting and bending mechanisms, etc., and achieves the effects of convenient and quick operation, improving the success rate of surgery, and improving the treatment effect.

Active Publication Date: 2022-07-15
NINGBO FIRST HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, in order to solve the problem of complicated or low-efficiency expansion and adjustment bending mechanism in the left atrial appendage occluder delivery system in the prior art, the present invention aims to propose an adjustable bending left atrial appendage occluder delivery system and its use method, through The micro-adjustment part set at the distal end realizes the coaxial rapid adjustment of the delivery sheath and the left atrial appendage axis

Method used

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  • A kind of adjustable bending left atrial appendage occluder delivery system and using method
  • A kind of adjustable bending left atrial appendage occluder delivery system and using method
  • A kind of adjustable bending left atrial appendage occluder delivery system and using method

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Embodiment 1

[0085] like Figures 2 to 21 As shown, the present invention discloses an adjustable left atrial appendage occluder delivery system, comprising:

[0086] The traction device 1 adjusts the tightening and loosening of the first traction wire 16 and the second traction wire 36 through the control mechanism;

[0087] The delivery sheath 2 includes a proximal tube 201 and a distal tube 203, a first bend-adjusting tube 202 is arranged between the proximal tube 201 and the distal tube 203, and the distal tube 203 is close to the distal end The second bending tube 204 is set at the position of 1, and the delivery sheath 2 is in a straight state in a natural state;

[0088] The pre-molded part 10 is arranged in the first bending tube 202, so that the first bending part 202b of the first bending tube 202 can be adjusted to a predetermined shape;

[0089] The first sliding block 13 is arranged on the other side of the first bending tube 202 opposite to the pre-molded part 10 , and is c...

Embodiment 2

[0157] The invention also discloses a method for using the adjustable bendable left atrial appendage occluder delivery system:

[0158] When in use, the double clutch sleeve 33 is in the lower position. By operating the control key 5, the first driving gear 24 is driven to rotate, so that the sliding rack 2603 on the first sliding device 26 and the first traction wire 16 Together they slide to a position away from the distal end of the delivery sheath 2, and as the first slider 13 slides toward the proximal tube 201, under the action of the pre-formed part 10 and the support assembly 19, the first adjustment of the delivery sheath 2 The bending portion 202b starts to bend, and when the height of the distal end of the first slider 13 is lower than the position of the pre-molded part 10 close to the proximal tube 201, the first bending portion 202b of the delivery sheath 2 is bent to a predetermined height. The preset curved shape of the plastic part 10, at this time, the curved s...

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Abstract

The invention provides a delivery system and a method for using a bendable left atrial appendage occluder. The adjustable left atrial appendage occluder delivery system includes a traction device, which adjusts a first traction wire and a second traction through a control mechanism. Tightening and loosening of the wire; the delivery sheath, which is in a straight state in the natural state; the pre-shaped part, which can make the first bending part of the first bending tube bend to the predetermined state; the first slider, set It is located on the other side of the first bending tube opposite to the pre-shaped part, and is connected with the first traction wire, and can slide relative to the pre-shaped part under the action of the first traction wire; the micro-motion adjustment part is arranged on the The second bending tube is connected with the second traction wire, and is used for fine-tuning the position of the distal tube close to the distal end. The adjustable bending left atrial appendage occluder delivery system of the present invention is convenient for the operator to perform the bending operation intuitively and reliably, and conveniently and quickly realizes the bending adjustment in which the distal section of the delivery sheath is coaxial with the central axis of the left atrial appendage Purpose.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a delivery system and a method for using a bendable left atrial appendage occluder. Background technique [0002] It is well known that left atrial appendage occlusion is a more effective treatment method for preventing left atrial appendage thromboembolism, which can reduce the risk of fatal bleeding events in patients with non-valvular atrial fibrillation for which anticoagulation therapy is contraindicated. Left atrial appendage occlusion is a procedure in which the opening of the left atrial appendage is closed with a left atrial appendage occluder. [0003] Minimally invasive interventional surgery is increasingly favored by doctors and patients due to its less traumatic nature. In minimally invasive surgery, the delivery sheath is used to establish a delivery channel from outside the body to the inside of the body (mainly the diseased site), and the implanted devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/00A61M25/01A61M25/09
CPCA61B17/0057A61M25/01A61M25/09A61B2017/00623A61B2017/00632A61B2017/00017
Inventor 何斌
Owner NINGBO FIRST HOSPITAL
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