CN104759019A

CN104759019A - Lacrimal passage bypass rebuilding pipe

Info

Publication number: CN104759019A
Application number: CN201510206617.3A
Authority: CN
Inventors: 吴文灿
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-28
Filing date: 2015-04-28
Publication date: 2015-07-08

Abstract

The invention discloses a lacrimal passage bypass rebuilding pipe. An upper port of a pipe body (1) is a horn-shaped flat mouth. The upper edge of the pipe body (1) is composed of a first concave arc edge (2) and a second concave arc edge (3) opposite to the first concave arc edge (2). The lowest point of the middle of the first concave arc edge (2) is higher than the lowest point of the middle of the second concave arc edge (3). The pipe body (1) is wrapped by a histocompatibility material layer (5). The upper end of the histocompatibility material layer (5) is close to the upper port of the pipe body (1). The lower end of the histocompatibility material layer (5) is close to a lower port of the pipe body (1). A nanometer material layer (4) is arranged on the inner wall of the pipe body (1). The lacrimal passage bypass rebuilding pipe adopts the integrated structure, and is small in installation difficulty, easy to install and operate, convenient to use and capable of saving force and being widely applied clinically; the positioning effect is reliable, the drainage effect can be ensured all the time, the phenomenon that tears or secretions are attached to the inner wall of a pipeline is avoided, and the pipeline can be effectively prevented from being blocked.

Description

Lacrimal passage Bypass rebuilt pipe

Technical field

The present invention relates to a kind of medical apparatus, particularly relate to the mozzle of eye-eye-nose communication tear.

Background technology

The extremely atrophy of dacryocystorhinostomy operative failure, lachrymal sac, lachrymal sac are extractd, wound causes the heavy damage of lachrymal sac structure, congenital lachrymal sac dysplasia or lack as patient, need between conjunctiva and nasal cavity, artificial tear duct is installed, by artificial tear duct by the tear of lacrimal secretion discharged to nasal cavity.Traditional artificial tear duct is glass tubing structure, exist locating effect poor, easily abrade eyeball, drainage effect is not good enough, the deficiency such as expensive.Chinese patent ZL 201020544041.4 discloses a kind of guiding device for eye-eye-nose communication tear on May 11st, 2011, and this guiding device is made up of body and pipe cap, and the upper end of body is inserted in by the lower port of pipe cap, namely can be used for tear drainage.Although above-mentioned patent greatly reduces cost, and locate reliable, drainage effect is good, and the difficulty that when using, connection pipe body and pipe cap assemble is large, and installation operation is very inconvenient, is difficult to apply in practice; Meanwhile, expense is appointed so costly.

Summary of the invention

Technical problem to be solved by this invention is to provide one to install lacrimal passage Bypass rebuilt pipe easily.

Technical scheme of the present invention is as follows: a kind of lacrimal passage Bypass rebuilt pipe, there is body (1), it is characterized in that: described body (1) is straight tube or curved pipe, the upper port of this body (1) is tubaeform flat mouth, the upper edge of body (1) is made up of the first concave arc limit (2) of opposite side and the second concave arc limit (3), the end on the first concave arc limit (2) and the corresponding end on the second concave arc limit (3) are connected as a single entity, and the minimum point at the first middle part, concave arc limit (2) is higher than the minimum point at the second middle part, concave arc limit (3); Described body (1) is coated with tissue compatible material layer (5), the upper port of upper end near body (1) of this tissue compatible material layer (5), the lower port of lower end near body (1) of tissue compatible material layer (5); The inwall of described body (1) is provided with layer of nanomaterial (4).

The present invention is arranged between conjunctiva and nasal cavity, and body is integral type structure, only body need be inserted the position of setting, operate very simple and convenient during installation, low to the requirement of operator, can in clinical middle extensive use.The upper port of body is tubaeform flat mouth, and shape approximation, in the eyes of people, can reduce the chance of friction eyeball on the one hand, prevent eyeball from abrading; Play a part spacing on the other hand, even if affect by gravity, muscle contraction etc., body also can not move up or down.Meanwhile, the moulding of body upper port can also prevent granulation from growing in body, to ensure the patency of drain.Tissue compatible material layer can allow tissue vascularization, and the tissue of periphery is grown into, the fastness that such body is fixing and better reliability.Layer of nanomaterial can prevent tear and secretions to be attached on inboard wall of tube body, avoids pipeline to block, thus ensure that drain remains unobstructed.

Described body (1) is made up of plastic type material, and the cost of material is low like this, and processing and fabricating is easy.

As preferably, described tissue compatible material layer (5) is hydroxyapatite material layer or polythene material layer.

The invention has the beneficial effects as follows:

1, adopt integral structure, installation difficulty is little, installs simple, convenient, laborsaving, can in clinical middle extensive use.

2, locating effect is reliable, can not be moved, can not damage eyeball, can guarantee the effect of drain all the time because of the reason such as gravity, muscle contraction.

3, can not there is tear or secretions attachment phenomenon in inner-walls of duct, effectively can prevent pipeline obstruction.

4, processing and fabricating is easy, and low price, patient is easy to bear.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is Fig. 1 top view.

Detailed description of the invention

Below in conjunction with drawings and Examples, the invention will be further described:

As shown in Figure 1 and Figure 2, lacrimal passage Bypass rebuilt pipe has body 1, and this body 1 is straight tube or curved pipe, and by plastic type material as polyurethane or other equivalent material are made, the cross section of body 1 is circular or oval.The upper port of body 1 is tubaeform flat mouth, and shape approximation is in the eyes of people.The upper edge of body 1 is made up of the first concave arc limit 2 of opposite side and the second concave arc limit 3, and the end on the first concave arc limit 2 and the corresponding end on the second concave arc limit 3 are connected as a single entity, and the minimum point in the middle part of the first concave arc limit 2 is higher than the minimum point in the middle part of the second concave arc limit 3.

As shown in Figure 1 and Figure 2, the inwall of body 1 is coated with layer of nanomaterial 4, the concrete thickness of layer of nanomaterial 4 is determined according to actual needs.Body 1 is coated with tissue compatible material layer 5, and the upper end of this tissue compatible material layer 5 is near the upper port of body 1, and the lower end of tissue compatible material layer 5 is near the lower port of body 1.Tissue compatible material layer 5 is preferably hydroxyapatite material layer or polythene material layer, and thickness is determined according to actual needs.

Although be below described the preferred embodiments of the present invention by reference to the accompanying drawings; but the invention is not restricted to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic instead of determinate; those of ordinary skill in the art is under enlightenment of the present invention; under the prerequisite without prejudice to present inventive concept and claim; can make like multiple types and representing; as changed the material of body, tissue compatible material layer; or change the shape of cross section etc. of body, such conversion all falls within protection scope of the present invention.

Claims

1. a lacrimal passage Bypass rebuilt pipe, there is body (1), it is characterized in that: described body (1) is straight tube or curved pipe, the upper port of this body (1) is tubaeform flat mouth, the upper edge of body (1) is made up of the first concave arc limit (2) of opposite side and the second concave arc limit (3), the end on the first concave arc limit (2) and the corresponding end on the second concave arc limit (3) are connected as a single entity, and the minimum point at the first middle part, concave arc limit (2) is higher than the minimum point at the second middle part, concave arc limit (3); Described body (1) is coated with tissue compatible material layer (5), the upper port of upper end near body (1) of this tissue compatible material layer (5), the lower port of lower end near body (1) of tissue compatible material layer (5); The inwall of described body (1) is provided with layer of nanomaterial (4).

2. according to lacrimal passage Bypass rebuilt pipe according to claim 1, it is characterized in that: described body (1) is made up of plastic type material.

3. according to lacrimal passage Bypass rebuilt pipe according to claim 1 and 2, it is characterized in that: described tissue compatible material layer (5) is hydroxyapatite material layer or polythene material layer.