CN204618481U

CN204618481U - A kind of lacrimal passage Bypass rebuilt pipe

Info

Publication number: CN204618481U
Application number: CN201520265611.9U
Authority: CN
Inventors: 吴文灿
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-28
Filing date: 2015-04-28
Publication date: 2015-09-09
Anticipated expiration: 2025-04-28

Abstract

The utility model discloses a kind of lacrimal passage Bypass rebuilt pipe, there is body (1), 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).This utility model adopts integral structure, and installation difficulty is little, installs simple, convenient, laborsaving, can in clinical middle extensive use; Not only locating effect is reliable, can guarantee the effect of drain all the time, and tear or secretions attachment phenomenon can not occur inner-walls of duct, effectively can prevent pipeline obstruction.

Description

A kind of lacrimal passage Bypass rebuilt pipe

Technical field

This utility model relates to a kind of medical apparatus, particularly relates 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.

Utility model content

Technical problem to be solved in the utility model is to provide one to install lacrimal passage Bypass rebuilt pipe easily.

The technical solution of the utility model 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).

This utility model 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.

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.

Multiple annular boss (4) is circumferentially evenly distributed with from top to bottom at described body (1).Annular boss plays a part to increase friction, locates, prevent body from moving with auxiliary body.

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).Tissue compatible material layer can allow tissue vascularization, and the tissue of periphery is grown into, and the fastness that such body is fixing and better reliability, can not move up or down.

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

At the little convex closure be circumferentially distributed with outwardly of described body (1).Little convex closure plays a part to increase friction, auxiliary positioning, further ensure that the steadiness that body is installed.

The inwall of described body (1) is provided with layer of nanomaterial (6), in case arresting lacrimation liquid and secretions are attached on inboard wall of tube body, avoids pipeline to block, thus ensure that drain remains unobstructed.

The beneficial effects of the utility model are:

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 the structural representation of embodiment 1.

Fig. 2 is Fig. 1 top view.

Fig. 3 is the structural representation of embodiment 2.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is described in further detail:

Embodiment 1

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 6, the concrete thickness of layer of nanomaterial 6 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.

Embodiment 2

Shown in composition graphs 1, in the present embodiment, there is no tissue compatible material layer 5 in the outside of body 1 as Fig. 2, Fig. 3, but be circumferentially evenly distributed with multiple annular boss 4 from top to bottom at body 1.The number of annular boss 4 is determined according to actual needs, can be 2,3,5 or other number, annular boss 4 and body 1 are structure as a whole, and body 1 be circumferentially evenly distributed with several little convex closures outwardly, this little convex closure is not preferably distributed on annular boss 4.All the other structures of the present embodiment are identical with embodiment 1, do not repeat at this.

Embodiment 3

Shown in composition graphs 1, Fig. 2, Fig. 3, the present embodiment is circumferentially evenly distributed with multiple annular boss 4 from top to bottom at body 1, and at the circumferentially surrounding structure biocompatible material 5 of body 1, this tissue compatible material layer 5 is completely hiding by annular boss 4.All the other structures of the present embodiment are identical with embodiment 2, do not repeat at this.

Although be below described preferred embodiment of the present utility model by reference to the accompanying drawings; but this utility model is not limited 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 utility model; under the prerequisite without prejudice to this utility model aim 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 domain of the present utility model.

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).

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, it is characterized in that: be circumferentially evenly distributed with multiple annular boss (4) from top to bottom at described body (1).

4. according to lacrimal passage Bypass rebuilt pipe according to claim 1, it is characterized in that: on described body (1), be 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).

5. according to lacrimal passage Bypass rebuilt pipe according to claim 4, it is characterized in that: described tissue compatible material layer (5) is hydroxyapatite material layer or polythene material layer.

6. according to lacrimal passage Bypass rebuilt pipe according to claim 1, it is characterized in that: at the little convex closure be circumferentially distributed with outwardly of described body (1).

7. according to lacrimal passage Bypass rebuilt pipe according to claim 1, it is characterized in that: on the inwall of described body (1), be provided with layer of nanomaterial (6).