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Lacrimal duct water-spreading equipment and lacrimal duct bougie therewith

A technology of lacrimal duct and bougie, which is applied in wound drainage devices, suction instruments, eye surgery, etc., and can solve problems such as cumbersome operations

Inactive Publication Date: 2008-06-18
张传忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a lacrimal duct drainage device that can realize the function of draining tears and solve the above-mentioned cumbersome operation problems, and a supporting lacrimal duct bougie for placing the drainage device

Method used

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  • Lacrimal duct water-spreading equipment and lacrimal duct bougie therewith
  • Lacrimal duct water-spreading equipment and lacrimal duct bougie therewith
  • Lacrimal duct water-spreading equipment and lacrimal duct bougie therewith

Examples

Experimental program
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Effect test

Embodiment 1

[0044] See Figures 1-4 and the figures, the lacrimal duct drainage device disclosed in this example includes a drainage part 111 made of a solid cylindrical soft strip with a cross-sectional diameter of 0.1-3.0 mm, preferably about 1 mm, and a drainage part connected to the drainage part. There is a blunt pouch-shaped connection portion 121 at the top end of the drainage portion, and a nail cap-shaped holding portion 131 connected to the other end of the drainage portion. The holding part can be a nail cap structure, an umbrella structure, or a strip shape or a flat strip shape similar to the section of the lacrimal duct. The latter two structures must be knotted with an appropriate size before use and the excess part should be cut off. The advantage is that the length of the drainage device can be temporarily determined by the difference in the position of the knot during use. When the device is put into the lacrimal duct, the holding part stays outside the lacrimal duct, so ...

Embodiment 2

[0046] See Figure 5-12, on the basis of Example 1, a deep groove 112 is set along the long axis of the drainage device. The cross-sectional size of the deep groove is slightly larger than the cross-section of the bougie probing part, and can be in the shape of "C" or " U" shape, straight to the pouch of the connecting part. When the holding part of the drainage device is in the shape of an umbrella or a nail cap, the deep groove runs through the holding part in the shape of an umbrella or a nail cap. The connection and fixing method between the drainage device and the bougie is roughly the same as that of Embodiment 1, except that the bougie is located in the deep groove, and the fixing device on the bougie is another kind of spring clip 2122, or only a rough surface 21231 is provided at a corresponding position. , and bind the drainage device and the bougie with a binding wire 21232 of appropriate strength. The improvement of embodiment 2 makes the combination of the drainag...

Embodiment 3

[0048]As shown in Figures 13-17, the drainage part and connection part of Embodiment 2 are improved, and the drainage part is changed to a solenoid structure 113 formed by moving and rotating a quasi-circular or approximately arcuate section, and the connection part is changed to have a The flat dimple 1221 matched with the probe end of the bougie has a head-like structure 122 with a blunt tip at the top, the probe end of the bougie is correspondingly set as a blunt round shovel-shaped structure 2112, the fixing device is a fixing clip 2124, and the setting of the holding part is compatible with the bougie through holes 1311 . In a natural state, the outer diameter of the helix can be larger than the inner diameter of the lacrimal duct. Before the drainage device is put into the lacrimal duct, the bougie is inserted into the flat socket of the connecting part through the solenoid, and then the solenoid is tightened to fix the holding part and the bougie. At this point, the ou...

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Abstract

The invention relates to a lacrimal passage conduction device and a matching lacrimal passage prospecting apparatus to cure lacrimal passage block. A current tubular conduction device has the disadvantages that the operation is complicated when putting the conduction device in the lacrimal passage and it needs to probe the lacrimal passage through first and then introduce in the conduction device through a down-lead. The invention discloses a lacrimal passage conduction device and a matching lacrimal passage prospecting stick, which can solve the above problem. The lacrimal passage conduction device comprises at least one conduction part composed of at least one bendable solid strip, at least one connecting part connected with the conduction part to connect the probing end of the lacrimal passage prospecting stick and at least one detaining part connected with the other end of the conduction part to prevent the entire conduction device from sliding into the lacrimal passage. The matching lacrimal passage prospecting stick is provided with a fixing device at the position with a certain distance from the probing end of the prospecting stick to relatively fix the prospecting stick and the lacrimal passage conduction device. With the matching lacrimal passage prospecting apparatus, the lacrimal passage probing and the installation of the lacrimal passage conduction device can be done at the same time.

Description

technical field [0001] The invention relates to an ophthalmic medical device for treating lacrimal duct obstructive diseases, in particular to a lacrimal duct drainage device which can be implanted into the lacrimal duct for a short-term or long-term, and a matching lacrimal duct bougie for placing the drainage device. Background technique [0002] In the treatment of lacrimal duct obstructive diseases such as chronic dacryocystitis, the most common and main surgical treatment is to first use the lacrimal duct exploration instrument to restore the patency of the lacrimal duct or reconstruct the lacrimal duct, and then place the lacrimal duct drainage to avoid Tissue proliferation and adhesions cause the lacrimal duct to reocclude. Existing various tubular drainage devices need to insert a guide wire in the lacrimal duct after probing the lacrimal duct, and then guide the guide wire into the drainage device. The disadvantage is that the operation is cumbersome, and it is eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/007A61M1/00A61M27/00
Inventor 张传忠苗志军
Owner 张传忠
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