CN101972494B

CN101972494B - Drainage device for lacrimal sac operation

Info

Publication number: CN101972494B
Application number: CN2010105105020A
Authority: CN
Inventors: 王勤; 孙业; 张森; 刘文冰
Original assignee: SHANDONG FREDA MEDICAL DEVICE CO Ltd
Current assignee: SHANDONG FREDA MEDICAL DEVICE CO Ltd
Priority date: 2010-10-18
Filing date: 2010-10-18
Publication date: 2012-08-22
Anticipated expiration: 2030-10-18
Also published as: CN101972494A

Abstract

The invention discloses a drainage device for a lacrimal sac operation, comprising a drainage tube. The drainage tube is connected with an implanting tube which is internally provided with a metal rod at one end, a sphere is arranged at one end of the metal rod, the drainage tube is provided with a base, a tube body is arranged in the middle of the base and forms an inclined angle relative to the base so that the tube body is in an arc shape, the center part of the tube body is provided with a drainage cavity, the tube body has an inclined top end surface, the drainage cavity has an elliptical top end, the outer wall of the tube body is the shape of a column formed by a high outer wall and a lower outer wall, the size defined by the long axis and the short axis of the inclined surface in a range of 360 degrees is larger than the outer wall diameter of the tube body, a first through hole is arranged at the upper part of the high outer wall of the tube body, the implanting tube is mounted in the first through hole, and one end of the implanting tube, which is provided with the metal rod, penetrates through a second through hole on the base. The invention is suitable for the drainage treatment on patients with a nasolacrimal canal obstruction syndrome, chronic dacryocystitis syndrome, and the like accompanied with lacrimal canaliculi obstruction syndrome through whole lacrimal passage intubation.

Description

Lachrymal sac operative drainage device

Technical field

The present invention relates to medical apparatus and instruments, is a kind of lachrymal sac operative drainage device that is exclusively used in nasolacrimal passage obliteration and performs the operation with obstruction of lacrimal canaliculus.

Background technology

When suffering from diseases such as chronic dacryocystitis, nasolacrimal passage obliteration, mucocele of lacrimal sac, efficacious therapy method is exactly an operative treatment, and present operation method is to treat above-mentioned disease through carrying out dacryocystorhinostomy.But the patient of most of above-mentioned diseases at this moment, adopts simple dacryocystorhinostomy then can't solve the problem of obstruction all with obstruction of lacrimal canaliculus, so need to adopt full lacrimal passage intubation art to carry out drainage treatment.Yet the problem that this operation exists is that when carrying out lacrimal ductule skirt intubate, the centre bore that must pass the drainage tube that coincide could get into nasal cavity; This has just caused the space of the centre bore of identical drainage tube to be tied up, and drainage effect is reduced, and operating time is prolonged; And be prone to cause surgical effect not good enough, and often need second operation, bring bigger misery to the patient; Simultaneously, the drainage tube that uses in the operation must use the intranasal mirror, just can make mouth and placement; So it can not be used for open dacryocystorhinostomy, and difficulty is bigger when operation is placed, and makes the treatment of full lacrimal passage intubation art reach optimum efficiency according to conditions of patients.

Summary of the invention

The purpose of this invention is to provide a kind of lachrymal sac operative drainage device, it is applicable to diseases such as suffering from nasolacrimal passage obliteration disease, chronic dacryocystitis and carries out full lacrimal passage intubation art with the patient of obstruction of lacrimal canaliculus symptom and carry out drainage treatment.

The present invention is for realizing above-mentioned purpose, and realize through following technical scheme: lachrymal sac operative drainage device comprises drainage tube; Drainage tube with insert pipe and be connected, insert end installation Metallic rod in the pipe, the Metallic rod termination is provided with spheroid; Drainage tube is provided with base, and the middle part of base is provided with body, and body has an inclination angle with respect to base; Make body be arcuation, the arc radius of body is the 20-22 millimeter, and drainage lumens is offered in the body centre; The top end of body is the inclined-plane, and the angle of the centreline space of inclined-plane and drainage lumens is 30 °-40 °, and the top of drainage lumens is ellipticity; The outer wall of body is high outer wall and low outer wall is formed column, and the size in 360 ° of scopes that the major axis on inclined-plane and minor axis are confirmed is offered first through hole all greater than the outer diameter of body on the high outer wall top of body; Install in first through hole and insert pipe, an end of inserting pipe installation Metallic rod passes second through hole on the base.Height between the peak on inclined-plane and the baseplane of base is the 9.5-10.5 millimeter, and the height between the minimum point on inclined-plane and base baseplane is the 5-6 millimeter.The first through hole centrage is the 1.2-1.5 millimeter apart from the distance of drainage lumens peak.Size in 360 ° of scopes that the major axis on inclined-plane and minor axis are confirmed is 0.5 millimeter greater than the tube wall diameter dimension all.The angle of the centreline space of inclined-plane and drainage lumens is 37 °.

The invention has the advantages that: device of the present invention can be to suffering from diseases such as nasolacrimal passage obliteration, chronic dacryocystitis and simultaneously carry out full lacrimal passage intubation art with the patient of obstruction of lacrimal canaliculus and carry out drainage treatment, and applicable to open nasal cavity lachrymal sac anastomosis.Need not use the intranasal mirror to make mouth and placement in the operation; Solve the deficiency that drainage tube is not easy to place, made drainage tube be convenient to insert in the tear stains, do not produced slippage; Solid and reliable, drainage effect is good, and once operation can be eliminated the disease with obstruction of lacrimal canaliculus such as nasolacrimal passage obliteration fully; Reliability is 100%, eliminates the misery of second operation for the patient; And because device of the present invention is reasonable in design, can makes the drain smoothly fast of this device, and make operation technique can reach the quick and accurate requirement, can shorten about 30% etc. than the use instrumentation of the prior art time.

Description of drawings

Accompanying drawing 1 is a structural representation of the present invention; Accompanying drawing 2 is structure for amplifying sketch maps of drainage tube 11 in the accompanying drawing 1; Accompanying drawing 3 is plan structure sketch maps of accompanying drawing 2; Accompanying drawing 4 is A-A sectional structure sketch maps in the accompanying drawing 3.

The specific embodiment

The contrast accompanying drawing further specifies the present invention.

Embodiment

Lachrymal sac operative drainage device of the present invention has a drainage tube 11, drainage tube 11 with insert pipe and 8 be connected; Insert end installation Metallic rod 9 in the pipe 8, Metallic rod 9 terminations are provided with spheroid 10, and drainage tube 11 is provided with base 1; The middle part of base 1 is provided with body 3, and body 3 has an inclination angle with respect to base 1, makes body 3 be arcuation; The arc radius R of body 3 is the 20-22 millimeter, and drainage lumens 4 is offered in body 3 centres, and the top end of body 3 is inclined-plane 6; Inclined-plane 6 is 30 °-40 ° with the angle of the centreline space of drainage lumens 4, and the top of drainage lumens 4 is ellipticity, and the outer wall of body 3 is high outer wall and low outer wall is formed column; Size in 360 ° of scopes that the major axis on inclined-plane 6 and minor axis are confirmed is all greater than the outer diameter of body 3; Offer on the high outer wall top of body 3 to install in first through hole, 7, the first through holes 7 and insert pipe 8, an end of inserting pipe 8 installation Metallic rod 9 passes second through hole 2 on the base 1.

Drainage tube 11 is inserted in the nose lacrimal passage anastomotic stoma in the such scheme, and the inclined-plane 6 of drainage tube 11 is fitted on the lachrymal sac ancient piece of jade, round, flat and with a hole in its centre fully, and with lachrymal sac wall keeping parallelism; Make the drain of tear very well; Be convenient to the quick accurately operation of operation, inclined-plane 6 is a kind of optimum selection for 30 °-40 ° with the centreline space angle of drainage lumens 4, when making inclined-plane 6 be fitted in a lachrymal sac ancient piece of jade, round, flat and with a hole in its centre fully; Do not produce stimulation, do not stick together.The arc radius R of body 3 is at the 20-22 millimeter, make it can accurately insert in the anastomotic stoma and with the complete applying of perisporium, improve support effect; Make postoperative effect remarkable; Size in 360 ° of scopes that the major axis on inclined-plane and minor axis are confirmed all greater than the characteristic of the outer diameter of body 3, when making drainage tube 11 be convenient to place, can further prevent the slippage after drainage tube 11 is placed; Because device of the present invention is to be exclusively used in the treatment nasolacrimal passage obliteration and with the operation of obstruction of lacrimal canaliculus; So when drainage tube is placed at nose lacrimal passage anastomotic stoma place, still need obstruction of lacrimal canaliculus is carried out supporting drainage, under the guiding of Metallic rod 9 and spheroid 10, insert lacrimal ductule and carry out supporting drainage inserting pipe 8; Inserting pipe 8 is installed in first through hole 7; The position that makes first through hole 7 also can reach the draw when placing drainage tube when guaranteeing to have the excellent support effect, make the operation integrated operation fast, smoothly, accurately.Is that all surgical effect all are beyond one's reach at present with device of the present invention treatment nasolacrimal passage obliteration etc. with the effect of obstruction of lacrimal canaliculus disease.

The further scheme of the present invention is: the height H 2 between the baseplane of the peak on inclined-plane 6 and base 1 is the 9.5-10.5 millimeter; Height H 1 between the minimum point on inclined-plane 6 and base 1 baseplane is the 5-6 millimeter, to guarantee further fit lachrymal sac wall and keep more difficult to find support of drainage tube.

First through hole, 7 centrages are the 1.2-1.5 millimeter apart from the distance H 4 of drainage lumens 4 peaks, further realize drainage tube is accurately drawn.

Size in 360 ° of scopes that the major axis on the inclined-plane 6 in apparatus of the present invention and minor axis are confirmed is that 0.5 millimeter scheme is the better selection of being convenient to place and can preventing slippage greater than body 3 outer diameter size L all.

It is a kind of optimal values that the angle of the centreline space of inclined-plane 6 and drainage lumens 4 is 37 °.

5 is through holes among the figure, and H3 is the thickness of inclined-plane greater than the body portion size.

Claims

1. lachrymal sac operative drainage device is characterized in that: comprise drainage tube (11), drainage tube (11) with insert pipe (8) and be connected; Insert end installation Metallic rod (9) in the pipe (8), Metallic rod (9) termination is provided with spheroid (10), and drainage tube (11) is provided with base (1); The middle part of base (1) is provided with body (3), and body (3) has an inclination angle with respect to base (1), makes body (3) be arcuation; The arc radius (R) of body (3) is the 20-22 millimeter; Drainage lumens (4) is offered in body (3) centre, and the top end of body (3) is inclined-plane (6), and inclined-plane (6) are 30 °-40 ° with the angle of the centreline space of drainage lumens (4); The top of drainage lumens (4) is ellipticity; The outer wall of body (3) is high outer wall and low outer wall is formed column, and the size in 360 ° of scopes that the major axis of inclined-plane (6) and minor axis are confirmed is offered first through hole (7) all greater than the outer diameter of body (3) on the high outer wall top of body (3); Install in first through hole (7) and insert pipe (8), an end of inserting pipe (8) installation Metallic rod (9) passes second through hole (2) on the base (1); First through hole (7) centrage is the 1.2-1.5 millimeter apart from the distance (H4) of drainage lumens (4) peak; Size in 360 ° of scopes that the major axis on inclined-plane (6) and minor axis are confirmed is all greater than 0.5 millimeter of body (3) outer diameter size (L).

2. lachrymal sac operative drainage device according to claim 1; It is characterized in that: the height (H2) between the baseplane of the peak of inclined-plane (6) and base (1) is the 9.5-10.5 millimeter, and the height (H1) between the minimum point of inclined-plane (6) and base (1) baseplane is the 5-6 millimeter.

3. lachrymal sac operative drainage device according to claim 1 is characterized in that: inclined-plane (6) are 37 ° with the angle of the centreline space of drainage lumens (4).