CN215024741U - Dilator catheter - Google Patents

Abstract

The utility model discloses an expander conduit, which is provided with a base body, a conduit main body and a conduit tip from a near end to a far end, wherein the base body is removably arranged at the near end of the conduit main body, and the far end of the conduit main body is provided with a developing ring for developing tissues in the operation process; the catheter tip is arranged at the head end of the distal end of the catheter main body, and meanwhile, the catheter tip is of a conical smooth structure. The utility model provides an expander pipe has good propulsion and maneuverability.

Description

Dilator catheter

Technical Field

The utility model relates to the technical field of medical instrument design, concretely relates to expander pipe.

Background

During an interventional procedure, to reduce surgical trauma, a small hole is typically made in the skin surface of the patient, and a special interventional instrument is then introduced into the body and ultimately to the target tissue site. However, the existing dilator catheter cannot be matched with an interventional therapy apparatus due to design defects, so that an expansion channel is insufficient in the operation process, the interventional therapy apparatus cannot reach a proper position, and clinical requirements cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides an expander catheter which can be matched with an interventional therapy apparatus for use, wherein the expander catheter is provided with a base body, a catheter main body and a catheter tip from a near end to a far end; the holder body is removably disposed at the proximal end of the catheter body, and the catheter tip is disposed at the tip end of the distal end of the catheter body.

Preferably, the base body is provided with a locker, and the locker is provided with locking scales.

Preferably, the distal end of the catheter body is provided with a visualization ring.

Preferably, the tip of the catheter is a tapered rounded structure.

Preferably, the seat body is made of polypropylene, and the catheter main body and the catheter tip are made of a mixture of polyethylene and barium sulfate.

The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following advantage and positive effect:

1. the utility model relates to an expander conduit, which solves the problem that the prior expander can not be matched with interventional therapy instruments, and simultaneously avoids the condition that some expanders are insufficient for channel expansion;

2. the utility model discloses an expander pipe, its simple structure convenient operation accords with clinical user demand to manufacturing cost is lower.

Drawings

The above and other features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic view of the dilator catheter provided by the present invention.

Detailed Description

The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

Referring to fig. 1, the present invention provides an expander catheter, which comprises a base 1, a catheter main body 2, and a catheter tip 3, which are respectively arranged from the proximal end to the distal end of the expander catheter; the seat body 1 is removably arranged at the near end of the catheter main body 2, so that the assembly is convenient; the catheter tip 3 is disposed at the tip of the distal end of the catheter body 2.

In some embodiments, the seat body 1 is provided with a locking device 4, and the locking device is provided with a locking scale.

In some embodiments, the catheter body 2 has an effective length of no less than 200mm, preferably 210 mm.

In some embodiments, the length of the catheter tip 3 is not less than 10mm, preferably 12 mm.

In some embodiments, the distal end of the catheter body 2 is provided with a visualization ring 5 for contrast visualization during operation.

In some embodiments, the catheter tip 3 is tapered rounded.

In some embodiments, the minimum separation breaking force that can be tolerated between the catheter body 2 itself, the housing 1 and the catheter body 2 is not less than 20N, preferably 15N to ensure a stable connection.

In some embodiments, the material of body 1 is polypropylene and the material of catheter body 2 and catheter tip 3 is a mixture of polyethylene and barium sulfate.

It will be appreciated by those skilled in the art that the invention can be embodied in many other specific forms without departing from the spirit or scope thereof. Although embodiments of the present invention have been described, it is to be understood that the present invention should not be limited to those precise embodiments, and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.

Claims (5)

1. The dilator catheter is characterized in that a base body, a catheter body and a catheter tip are arranged from the near end to the far end of the dilator catheter; the holder body is removably disposed at the proximal end of the catheter body, and the catheter tip is disposed at the tip end of the distal end of the catheter body.

2. The dilator catheter according to claim 1, wherein the holder body is provided with a locker having a locking scale thereon.

3. The dilator catheter of claim 1, wherein said catheter body distal end is provided with a visualization ring.

4. The dilator catheter of claim 1, wherein the catheter tip is tapered rounded.

5. The dilator catheter of claim 1, wherein the material of the seat is polypropylene, and the material of the catheter body and catheter tip is a mixture of polyethylene and barium sulfate.

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