CN202376264U

CN202376264U - Lacrimal duct stent used for ophthalmology

Info

Publication number: CN202376264U
Application number: CN2011205519986U
Authority: CN
Inventors: 刘玮超
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-21
Filing date: 2011-12-21
Publication date: 2012-08-15
Anticipated expiration: 2021-12-21

Abstract

The utility model discloses a lacrimal duct stent used for ophthalmology. The lacrimal duct stent is characterized in that the top parts of a long V-shaped metal wire are bended respectively and connected with a square hook-shaped expander to form a support cavity (1), and a shaped metal wire (2) is connected to the metal wire at the lower end of the square hook-shaped expander and connected with the bottom of the long V-shaped metal wire. After the lacrimal duct of a patient is reconstructed during dacryocystorhinostomy, by the support of the square hook-shaped expander which is put between the upper and the lower anastomosis flaps in the position of the nasal cavity bone incision, the patient can breathe conveniently through the support cavity, which reduces pain and promotes wound healing. During lacrimal duct stent removal after wound healing, the square hook-shaped expander is not liable to adhere to the upper and the lower anastomosis flaps applied to the lacrimal sac and nasal mucosa or cause injury or bleeding. The lacrimal duct stent ensures that the reconstructed lacrimal duct is smooth and significantly improves the efficacy of surgery.

Description

A kind of lacrimal stent of ophthalmic

(1) technical field: this utility model relates to medical surgical instrument; Be specifically related to a kind of lacrimal stent of ophthalmic.

(2) background technology: present human body nasal cavity lachrymal sac anastomosis operation is to be the patient chronic dacryocystitis through the lacrimal passage that rebulids.The key of operation is the support that solves the lobe that coincide on the lachrymal sac nasal mucosa at nasal cavity bone window place; Prior art is to adopt ointment ribbon gauze to fill to support the lobe that coincide on the lachrymal sac nasal mucosa; It exists not enough: the one, and filling the ointment ribbon gauze that is supported on nasal cavity has increased patient respiration difficulty and painful, is unfavorable for wound healing; The 2nd, when the patients after surgery wound healing is withdrawn from ointment ribbon gauze; The upper and lower identical lobe of ointment ribbon gauze and lachrymal sac nasal mucosa is sticked together; Very easily cause tissue injury's oozing of blood at nasal cavity bone window place; Newly-built lacrimal passage produced and stops up after patient was performed the operation, and had reduced the therapeutic effect of operation, then caused operative failure when serious.

(3) summary of the invention: to the deficiency of above-mentioned prior art existence; The purpose of this utility model is to provide a kind of lacrimal stent of ophthalmic; Be intended to both be convenient to patient respiration and palliated the agonizing sufferings after the operation; Help wound healing, guarantee that again the newly-built lacrimal passage of patient is unimpeded, to improve the therapeutic effect of operation.

For realizing above-mentioned purpose, the technical scheme of this utility model is achieved in that the lacrimal stent of this ophthalmic, and it is to grow " V " shape top wiry hook-shaped expansion body formation in the bending side of being connected with support chamber respectively; On the tinsel of the hook-shaped expansion body of said side lower end, be connected with typing tinsel and said length " V " shape bottom connection wiry.

This utility model is taked said structure; After patient's nasal cavity lachrymal sac anastomosis operation carries out the lacrimal passage reconstruction; Through being seated in the support of the hook-shaped expansion body in side between the upper and lower identical lobe in nasal cavity bone window place, patient can breathe through support chamber easily, has alleviated misery and has helped wound healing; When treating that wound healing is withdrawn from lacrimal stent, the hook-shaped expansion body in side is difficult for and the upper and lower identical lobe adhesion damage oozing of blood of lachrymal sac nasal mucosa, has guaranteed that the newly-built lacrimal passage of patient is unimpeded, has improved the therapeutic effect of operation significantly.

(4) description of drawings:

Fig. 1 is the front view of a kind of embodiment of this utility model;

Fig. 2 is the right view of Fig. 1.

(5) specific embodiment: Fig. 1-shown in Figure 2.The lacrimal stent of this ophthalmic, it is to grow " V " shape top wiry hook-shaped expansion body formation in the bending side of being connected with support chamber 1 respectively; On the tinsel of the hook-shaped expansion body of said side lower end, winding is connected with typing tinsel 2 and twines join (Fig. 1, shown in Figure 2) with said length " V " shape bottom wiry.After patient's nasal cavity lachrymal sac anastomosis operation carries out the lacrimal passage reconstruction; Through being seated in the support of the hook-shaped expansion body in side between the upper and lower identical lobe in nasal cavity bone window place; Patient can breathe (Fig. 1, shown in Figure 2) through support chamber 1 easily, has alleviated misery and has helped wound healing; When treating that wound healing is withdrawn from lacrimal stent, the hook-shaped expansion body in side is difficult for and the upper and lower identical lobe adhesion damage oozing of blood of lachrymal sac nasal mucosa, has guaranteed that the newly-built lacrimal passage of patient is unimpeded, has improved the therapeutic effect of operation significantly.The described tinsel of this utility model is selected the medical stainless steel silk usually for use, and its diameter is at 0.5mm.Certainly, according to the requirements of operation of the different lacrimal passages of patient, this utility model also can be set as different dimensions.

The above only is one of preferred implementation of this utility model.Be noted that for the person of ordinary skill of the art; Under the prerequisite that does not break away from the principle of the invention; Need not other technical characterictic that the process creative work just can be associated, can also make the modification and/or the improvement of some kinds of basic identical modes, realize essentially identical function and produce essentially identical effect; These variations should be regarded as equivalent feature, all belong within the protection domain of this utility model patent.

Claims

1. the lacrimal stent of an ophthalmic is characterized in that: growing " V " shape top wiry hook-shaped expansion body formation in the bending side of being connected with support chamber (1) respectively; On the tinsel of the hook-shaped expansion body of said side lower end, be connected with typing tinsel (2) and said length " V " shape bottom connection wiry.