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An adjustable valve catheter sheath

A catheter and valve adjustment technology, applied in the direction of the catheter, etc., can solve the problem of unsatisfactory actual effect, and achieve the effect of good sealing and pushing performance, and good hemostasis performance

Active Publication Date: 2017-10-13
APT MEDICAL HUNAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The actual effect of the existing structure is not very ideal

Method used

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  • An adjustable valve catheter sheath
  • An adjustable valve catheter sheath
  • An adjustable valve catheter sheath

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Embodiment Construction

[0029] The invention discloses a catheter sheath with an adjustable valve, which can control the opening size of a hemostatic valve in a joint, thereby realizing excellent hemostatic performance, good sealing and pushing performance.

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] see Figure 1-Figure 9 ,one of them figure 1 Schematic diagram of the structure of the catheter sheath with adjustable valve provided by the embodiment of the present invention; figure 2 It is a schematic diagram of th...

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Abstract

The invention discloses an adjustable valve catheter sheath, which is mainly composed of a sheath tube and a dilator. The proximal joint of the sheath tube is provided with a buckle, a first hemostatic valve, a second hemostatic valve and a cap; Cooperate with the card slot of the gland cap to control the compression amount of the second hemostatic valve, thereby changing the size of the opening and achieving good sealing and pushing performance. Its hemostatic valve adopts a double-piece structure. When a catheter or device passes through, the second hemostatic valve ensures hemostatic performance; when the catheter or device is withdrawn, the first hemostatic valve ensures that blood will not be lost; the cooperation between the pressing cap and the buckle The opening size of the second hemostasis valve can be controlled, so that when catheters and instruments of different diameters pass through, good sealing performance can be ensured, and at the same time, the resistance is small, which ensures a good operating feel; the first hemostasis valve and the second hemostasis valve Made of materials with different hardness and elasticity; the first hemostatic valve has a larger elastic modulus, and the second hemostatic valve is softer, and the size of the opening can be effectively controlled in a compressed state.

Description

technical field [0001] The invention relates to an adjustable valve catheter sheath, which is used in interventional diagnosis and treatment operations, in particular to an auxiliary device for cardiac catheterization or coronary artery balloon angioplasty or other peripheral vascular interventional diagnosis and treatment. Background technique [0002] As an auxiliary guiding device for arteriovenous interventional surgery, the introducer sheath plays an important role in interventional therapy. The introducer sheath uses the vascular puncture technique to guide the introducer sheath to expand the skin and muscle tissue into the lumen of the epidermal blood vessel by using the puncture guide wire, and then remove the puncture guide wire and the dilation tube assembly, so that the distal end of the introducer sheath is placed in the blood vessel, thus establishing a system consisting of The passage from the outside of the body to the lumen of the blood vessel can be used for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/00
Inventor 刘慕竹
Owner APT MEDICAL HUNAN INC
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