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Bending-adjustable left atrial appendage occluder conveying system and using method

A delivery system and occluder technology, which is applied in the field of medical devices, can solve the problems of complex expansion and adjustment bending mechanism and low efficiency, and achieve the effect of improving the success rate of surgery, convenient and quick operation process, and improving treatment effect

Active Publication Date: 2021-10-29
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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  • Bending-adjustable left atrial appendage occluder conveying system and using method
  • Bending-adjustable left atrial appendage occluder conveying system and using method
  • Bending-adjustable left atrial appendage occluder conveying system and using method

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Embodiment 1

[0085] Such as Figure 2-21 As shown, the present invention discloses an adjustable curved left atrial appendage occluder delivery system, comprising:

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

[0087] The delivery sheath 2 includes a proximal tube 201 and a distal tube 203, a first bend adjustment 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 where the delivery sheath tube 2 is in a straight line state in a natural state;

[0088] The pre-molding part 10 is arranged in the first bend adjustment pipe 202, so that the first bend adjustment part 202b of the first bend adjustment pipe 202 can be adjusted to a predetermined state;

[0089] The first slider 13 is arranged on the other side of the first bending tube 202 relative to the pre...

Embodiment 2

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

[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 pulling wire 16 slide together 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 preformed part 10 and the support assembly 19, the first adjustment of the delivery sheath 2 The bending part 202b starts to bend until the height of the distal end of the first slider 13 is lower than the position of the preformed part 10 close to the proximal tube 201, the first bending part 202b of the delivery sheath 2 is bent to the predetermined position. The preset curved shape of the molding part 10, the curved shape of the delivery sh...

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Abstract

The invention provides a bending-adjustable left atrial appendage occluder conveying system and a using method, and the bending-adjustable left atrial appendage occluder conveying system comprises a traction device which adjusts the tightening and loosening of a first traction wire and a second traction wire through a control mechanism, a conveying sheathing canal which is in a linear state in a natural state, a pre-shaping piece which can enable the first bending adjusting part of a first bending adjusting pipe to be bent to a pre-shaping state, a first sliding block which is arranged on the other side, opposite to the pre-shaping piece, in the first bending adjusting pipe, is connected with the first traction wire and can slide relative to the pre-shaping piece under the action of the first traction wire, and a micro-motion adjusting piece which is arranged in a second bending adjusting pipe, connected with the second traction wire and used for finely adjusting the position, close to the far end, of a far-end pipe. According to the bending-adjustable left atrial appendage occluder conveying system, an operator can visually and reliably conduct bending adjustment operation conveniently, and the purpose that the far-end section of the conveying sheathing canal is coaxial with the central axis of a left atrial appendage is achieved conveniently and rapidly.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an adjustable curved left atrial appendage occluder delivery system and a usage method. Background technique [0002] It is well known that left atrial appendage occlusion is a relatively effective treatment for preventing left atrial appendage thromboembolism, which can reduce the risk of fatal bleeding events in patients with non-valvular atrial fibrillation who are contraindicated in anticoagulant therapy or anticoagulant therapy. Left atrial appendage occlusion is the operation of using a left atrial appendage occluder to block the opening of the left atrial appendage. [0003] Minimally invasive interventional surgery is more and more favored by doctors and patients because of its less trauma. In minimally invasive surgery, the delivery sheath is used to establish a delivery channel from the outside of the body to the body (mainly the lesion), and the implanted devi...

Claims

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Application Information

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Patent Type & Authority Applications(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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