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Operable sheathing canal

A technology of sheath tubes and control parts, applied in the field of steerable sheath tubes, can solve the problems of poor controllability and low deflection control precision of the sheath tube head, and achieve the effects of improving controllability, stable and reliable transmission process, and improving deflection accuracy

Pending Publication Date: 2021-01-15
PIEDMONT MEDSYST ZHUHAI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the knob is directly connected to the guide wire used to pull the deflection and bending of the sheath head, resulting in low deflection control accuracy and poor maneuverability of the sheath head. , thus providing a steerable sheath

Method used

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  • Operable sheathing canal

Examples

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Embodiment 1

[0064]This embodiment provides a steerable sheath, such asFigure 1-Figure 15 Shown, including:

[0065]The sheath body 1, the insertion end 11 of the sheath body 1 is provided with a deflectable sheath head;

[0066]The driving mechanism 2, the driving mechanism 2 includes: a rotary manipulating member 21 and a linear motion mechanism 22 driven by it, and the linear motion mechanism 22 is connected with the sheath head to drive the sheath head to deflect and bend ;

[0067]By setting the linear motion mechanism 22 to connect the rotating manipulator 21 and the sheath head, the movement that drives the deflection and bending of the sheath head is converted from rotational motion to linear motion. The transmission structure that realizes the conversion provides a change in the rotation of the rotating manipulator 21 In an angular manner, by changing the rotatable angle of the rotating manipulator 21, the turning angle of the rotating manipulator 21 corresponding to a certain angle of the sheat...

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Abstract

The invention discloses an operable sheathing canal, and belongs to the technical field of medical instruments. The operable sheathing canal comprises a sheathing canal body and a driving mechanism, wherein a deflectable sheathing canal head is arranged at an insertion end of the sheathing canal body, the driving mechanism comprises a rotary control piece and a linear motion mechanism driven by the rotary control piece, and the linear motion mechanism is connected with the sheathing canal head so as to drive the sheathing canal head to deflect and bend. According to the operable sheathing canal, the linear motion mechanism is arranged to connect the rotary control piece and the sheathing canal head, The sheathing canal head is driven to deflect and bend by rotating the sheathing canal head, rotation motion is converted into linear motion, the converted transmission structure provides a mode of changing the rotatable angle of the rotating control piece, and the rotating angle needed bythe rotating control piece corresponding to the sheathing canal head bent by a certain angle is more reasonable by changing the rotatable angle of the rotating control piece. then the deflection precision of the sheathing canal head is improved, and the controllability is improved.

Description

Technical field[0001]The invention relates to the technical field of medical devices, in particular to a steerable sheath.Background technique[0002]The sheath is a medical device that establishes a passage through the skin to the vascular cavity. The function of the sheath is to facilitate the repeated delivery or exchange of medical devices such as sheath cores into the blood vessel, and the medical device repeatedly enters and exits the blood vessel. To protect blood vessels, the sheath is suitable for various medical fields. For example, in cryoablation, the sheath is designed to introduce various cardiovascular catheters into the heart, including introducing the left side of the heart through the interatrial septum to provide the core and expansion of the sheath Provide access to other treatment materials, such as medical devices and cryo-balloon catheters;[0003]The existing steerable sheath adopts a method in which the knob is directly connected to the guide wire used to pull t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00
CPCA61B17/00
Inventor 赵冬冬代聪育
Owner PIEDMONT MEDSYST ZHUHAI CO LTD
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