Double-sleeve type drainage pipe easy to replace

A double-set, drainage tube technology, applied in the direction of wound drainage devices, catheters, etc., can solve the problems of difficult replacement of inner tubes, and achieve the effects of convenient replacement, enhanced use effect, and convenient filtration

Active Publication Date: 2014-09-03
杭州康源随喜医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the technical problem that the inner tube is difficult to replace in the double-sleeved drainage tube in the prior...

Method used

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  • Double-sleeve type drainage pipe easy to replace
  • Double-sleeve type drainage pipe easy to replace
  • Double-sleeve type drainage pipe easy to replace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like Figure 1-7 As shown, the easily replaceable double-set drainage tube of this embodiment includes an outer tube 1 and an inner tube 2 sleeved in the outer tube 1, and is respectively arranged on the front end tube walls of the outer tube 1 and the inner tube 2. There are through outer drainage holes 11 and inner drainage holes 21. A connector 3 is provided at the end of the outer tube 1. The outer tube 1 and the inner tube 2 are detachably connected and airtight through the connector 3. The inner tube of the outer tube 1 Several protrusions 4 are equidistantly arranged on the wall, and the height and quantity of the protrusions 4 can support the outer pipe and the inner pipe, so that only these protrusions pass between the inner pipe wall of the outer pipe and the outer pipe wall of the inner pipe. Contact shall prevail. The outer surface of the protrusion 4 is a spherical surface, so that a point contact is formed between the protrusion 4 and the outer surface of...

Embodiment 2

[0033] like Figure 8As shown, the difference between this embodiment and Embodiment 1 is that several ribs 9 are arranged on the inner tube wall of the outer tube 1, the ribs 9 are arranged along the axial direction of the drainage tube, and the ribs 9 can be arranged along the outer tube The entire length direction of the wall is arranged at intervals, or only one section, and several sections of convex ribs are arranged alternately. The shape of the convex rib 9 can be a triangular prism, a semi-cylindrical column or other polygonal columns, and the height and quantity of the convex rib 9 can support the outer tube and the inner tube, so that there is a gap between the inner tube wall of the outer tube and the outer tube wall of the inner tube. Only contact through these ribs shall prevail. In this embodiment, the rib 9 is semi-cylindrical, so that a line contact is formed between the rib 9 and the outer surface of the inner tube 2 .

Embodiment 3

[0035] like Figure 9 As shown, the difference between this embodiment and Embodiment 1 is that: a ball groove 41 is provided on the protrusion 4, and a ball 42 is arranged in the ball groove 41, and the ball 42 is arranged on the inner wall of the outer tube and the inner tube. A rolling connection is formed between the outer pipe walls. During the processing, the ball groove 41 can be set to cover more than half of the ball 42, and there is a certain space between the ball groove 41 and the ball 42, which can be filled with aseptic lubricant, so that the ball 42 will not Comes out and is free to roll.

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Abstract

The invention relates to a wound drainage device or an analogue, in particular to a double-sleeve type drainage pipe easy to replace and belongs to the technical field of medical devices. The double-sleeve type drainage pipe solves the technical problem that a double-sleeve drainage pipe in the prior art is difficult to replace. The double-sleeve type drainage pipe comprises an outer pipe and an inner pipe sleeved with the outer pipe. The pipe wall at the front end of the outer pipe and the pipe wall at the front end of the inner pipe are provided with an outer drainage hole and an inner drainage hole respectively, wherein the outer drainage hole and the inner drainage hole are communicated. A connector is arranged at the tail end of the outer pipe, and the outer pipe and the inner pipe are detachably connected through the connector and are in air-tight seal. The double-sleeve type drainage pipe is characterized in that the inner pipe wall of the outer wall or the outer pipe wall of the inner pipe is provided with a plurality of protrusions and/or a plurality of flanges which are arranged in the axial direction of the drainage pipe, and the inner pipe wall of the outer wall and the outer pipe wall of the inner pipe form contact through the protrusions and/or the flanges. The double-sleeve type drainage pipe has the advantages that the inner pipe is convenient to replace, and the drainage effect is good.

Description

technical field [0001] The invention relates to a wound drainage device or the like, in particular to an easily replaceable double-set drainage tube, which belongs to the technical field of medical devices. Background technique [0002] In medical clinical application, surgical operations, especially abdominal surgery, thoracic surgery and gynecology, etc., often need to place drainage tubes after surgery to prevent postoperative bleeding, exudate and anastomotic leakage. cavity drainage tube. Although this kind of drainage tube is simple and easy to operate, it is easy to be blocked by blood clots, necrotic tissue, mucus or omentum, etc., resulting in poor drainage and fluid accumulation, which cannot serve the purpose of drainage well. In severe cases, it may lead to infection or anastomosis Oral fistula required reoperation for laparotomy and drainage. [0003] For this reason, people have invented a double-sleeve type drainage tube, which includes an outer tube and an ...

Claims

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Application Information

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IPC IPC(8): A61M25/14A61M27/00
Inventor 周炬
Owner 杭州康源随喜医疗科技有限公司
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