CN105879204A - Drainage type canalis nasolacrimalis expander - Google Patents

Abstract

The invention relates to a drainage type canalis nasolacrimalis expander comprising a front end traction line (1); one end of the traction line is a tubular drainage tube (2); the outer wall of the drainage tube is attached with an expansion capsule (3); the end of the expansion capsule (3) is provided with a pressurize tube port; the drainage tube exits the expansion capsule and extends so as to bond with the pressurize tube, thus forming the drainage tube lower end (4); the pressurize tube bonds with the drainage tube lower end (4) and extend to form the pressurize tube (5); the pressurize tube bonds with an expanded round body so as to form a pressurize valve (6); the lacrimal traction line can lead the expansion capsule (3) into the canalis nasolacrimalis; an injector can extract air or liquid, and the air or liquid can be injected by the pressurize valve; the drainage type canalis nasolacrimalis expander can expand the canalis nasolacrimalis, and can drainage the liquid in the lacrimal; the expandable portion after the traction line is a soft capsule structure; the canalis nasolacrimalis is a flat tubular cavity; the expansion capsule (3) can deform and expand along with the canalis nasolacrimalis shape; the length of the expansion capsule (3) is the canalis nasolacrimalis physiological size, and the capsule wall of the final 1/3 section of the expansion capsule (3) is thickened; when the canalis nasolacrimalis expands to the right position, the tube is pulled; the injector needle can insert the pressurize valve and extract the air or liquid in the expansion capsule (3), so the expansion capsule (3) becomes a thin round strip with the outer diameter under 1.5mm; finally the pressurize valve and pressurize tube are pulled so as to slowly remove the drainage type canalis nasolacrimalis expander.

Description

Can drainage type nasolacrimal duct dilator

Technical field

The invention belongs to technical field of medical instrument, be concretely that one treats nasolacrimal duct Block or narrow and cause the medical device shed tears-can drainage type nasolacrimal duct dilator.

Background technology

It is known that: obstruction of naso lacrimal duct or disease of shedding tears that is narrow and that cause, Therapeutic Method Treated by traditional from outside or interior road dacryocystorhinostomy, curative effect reliable.But operation wound is big, Hemorrhage many, costly.External dacryocystorhinostomy external eyes medial canthal leaves cicatrix, interior road lachrymal sac nose Also lacrimal passage supporter under indwelling is needed in the anastomosis lacrimal passage of chamber；Another kind of method is to visit with lacrimal passage threading probe Logical lacrimal passage send draught line outside nose, draught line again lower tear duct dilating lines or lower lacrimal passage supporter by nose Chamber carries out nasolacrimal duct expansion in introducing nasolacrimal duct.The method drawback is not in place to nasolacrimal duct expansion.Just Often nasolacrimal duct is flat tube chamber, and has two physiology narrow, then it is special narrow or abnormal to run into nasolacrimal duct Being less susceptible to during shape enter in nasolacrimal duct, the expansion to nasolacrimal duct is more undesirable, postoperative easily recurs. Still an alternative is that and with lacrimal dilator under inflated type, lower lacrimal passage is expanded, though to nasolacrimal duct Expand ideal.But during Kuo Zhang can not drain tear, patient still sheds tears misery.Also the most right Patient causes unnecessary damage and burden, adds great work difficulty to medical worker simultaneously.

Summary of the invention

Undesirable in order to solve the expansion of above-mentioned nasolacrimal duct and drain, simultaneously to nasolacrimal duct and surrounding The problem that tissue injury is excessive.

It is an object of the invention to provide a kind of simple in construction, smooth surface, can be according to obstruction of naso lacrimal duct or narrow Narrow practical situation carries out expanding the dilator of nasolacrimal duct.Solve the technical side that its technical problem is used Case is: the material needing expansion is latex or silicon latex, in vitro can be to after inflation or topping up body Extend out number times or ten several times.Air or liquid drained after be a thin circular strip, its external diameter exists Within Φ 1.5mm.The a diameter of Φ 0.16mm in the embedding Tibetan of anterior adhesion one of drainage tube stretches out 300mm Draught line, material is nylon.There are certain elasticity and stretching resistance, away from drainage tube 22mm suitable for reading There is a labelling on place's draught line, enter, for traction expansion capsule, the standard instruction that nasal cavity enters back in nasolacrimal duct Used.Expansion capsule is expanded capsule front portion after being stamped and is shown as that funnel-form is thicker to extend the most backward, supplies Tear enters drainage tube smoothly, enters back into set by nasal cavity.The a length of 18mm of expandable part, Also it is to design according to the physiology length of nasolacrimal duct, meets nasolacrimal duct physiology anatomy.Expansion capsule Latter end 6mm cyst wall is the most thickening, and the intranasal section resistance for nasolacrimal duct is slightly smaller and arranges.The end of expansion capsule Holding embedding impact tube opening of hiding, expansion capsule end drainage tube goes out to expand capsule and continues to extend 5mm, and with fill Pressure pipe phase adhesion is connected.After departing from drainage tube, pressurising pipe continues to extend, and end is connected mutually with equalizer valve. Medical worker to patient carry out nasolacrimal duct expansion time, by means of lacrimal passage pull wire traction will expansion capsule by Nasal cavity drives in the wrong direction and enters in nasolacrimal duct, injects with syringe extraction air or liquid thus valve, can preserve and stay Within more than one week, do not leak out.According to the obstruction of naso lacrimal duct situation of patient and doctor judge to grasp inflation or The number of filling amount.Expansion capsule is resistant to 15 atmospheric pressure, charge after gas or liquid impact tube and Ram valve is filled in nasal cavity art and is finished.Whole dilator surface scribble adhesion stop, epidermal growth factor and profit Lubrication prescription, turnover nasolacrimal duct is the most quick.It is difficult to hypertrophy adhesion again after nasolacrimal duct expansion, and can add Mucosal hyperplasia reparation in speed nasolacrimal duct.Avoid other nasolacrimal duct expansion equipment nasolacrimal duct expansion less than In position and nasolacrimal duct damage too much, impact tube and ram valve is left outside or can not many frauds such as drain End, alleviates patient's misery, improves cure rate.

The invention has the beneficial effects as follows: present configuration is simple, the surface light of dilator own Sliding, surface repasted adhesion stop, epidermal growth factor and lubricant, turnover nasolacrimal duct is the fastest Prompt.It is difficult to adhesion again after nasolacrimal duct expansion, mucosal hyperplasia reparation in nasolacrimal duct can be accelerated.Drained Being a thin circular strip when air or liquid in expansion capsule, its external diameter is within Φ 1.5mm, it is easy to Turnover nasolacrimal duct.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings the present invention can be further illustrated by drainage type nasolacrimal duct dilator

Accompanying drawing is reality sectional view of the present invention

1. can the draught line of drainage type nasolacrimal duct dilator in figure.2. drainage tube top.3. Expansion capsule.4. drainage tube end.5. pressurising pipe, 6. equalizer valve.

Detailed description of the invention

Shown in accompanying drawing, it is described in detail

To accompanying drawing with diameter of phi 0.16mm, long 300mm nylon wire as dilator Draught line, at drainage tube 22mm suitable for reading, have a labelling on draught line, for traction expansion capsule enter nose The standard instruction that chamber enters back in nasolacrimal duct is used, for draught line (1).It is afterwards and draught line adhesion Linking, material are plastic cement or plastics make external diameter be Φ 1mm, internal diameter Φ 0.6mm, long 23.5mm Tubular body, its top is connected 5mm with draught line adhesion, for drainage tube (2).Afterwards from drainage tube Starting at top 0.5mm, outside drainage tube, attachment latex or silicon latex material make expansible cryptomere Tubular body, expands capsule pipe range 18mm.Expansion capsule two ends are connected with adhesion in drainage tube outer wall respectively 5mm, it is ensured that seal solid.Expansion capsule nature external diameter be Φ 3.5mm, natural in, epimere internal diameter be Φ3.3mm.Expansion capsule hypomere 6mm cyst wall the most thickening, the intranasal section resistance for nasolacrimal duct slightly smaller and Arrange.Inflate in vitro or after topping up body, maximum can expand outwardly several times or ten several times.Expansion capsule is resistant to By 15 atmospheric pressure, in capsule air or liquid drained after be a thin circular strip, its external diameter is at Φ 1.5mm Within, for expansion capsule (3).Capsule end is embedding keeps impact tube opening, after drainage tube goes out to expand capsule in expansion Continue to downwardly extend 5mm, and be connected with impact tube phase adhesion, for drainage tube end (4).Impact tube Continuing to downwardly extend 30mm after leaving drainage tube end opening, whole impact tube external diameter is Φ 1mm, internal diameter Φ 0.6mm, material is plastic cement or plastics are made, for impact tube (5).Impact tube end and one expands Round phase adhesion is connected, and the body case material that expands is that hard transparent plastic is made, and expands round class The heparin seemingly staying black pin emits.Middle filling embedding Tibetan silica gel slurry, for equalizer valve (6).Outside equalizer valve duricrust Footpath is Φ 3.5mm, internal diameter Φ 3mm, thick 3mm, and end has a circular port, bore dia 1.5mm. The full silica gel in the embedding Tibetan of filling slurry in the middle of equalizer valve duricrust, after penetrating silica gel slurry entrance impact tube punching press for syringe needle Pull out syringe needle to play used by sealing.When medical worker carries out nasolacrimal duct expansion to patient, by means of lacrimal passage Expansion capsule is driven in the wrong direction in entrance nasolacrimal duct by nasal cavity by draught line traction, with syringe extraction air or liquid Inject in equalizer valve.Can preserve stay one week air above or liquid not to outward leakage, can be according to disease People's congestion situations and doctor judge grasp inflation or filling amount number.Charge impact tube and pressurising after pressure Valve is all filled in nasal cavity and is reached attractive in appearance.When tube drawing after putting in place expanded by nasolacrimal duct, insert punching with syringe needle Air or liquid in pressure valve extraction dilator, expansion capsule becomes thin garden strip, and its external diameter is at Φ 1.5mm Within.From nasal cavity, ram valve and pressurising pipe are pulled out external, the most outwards pull out.

Claims (2)

1. can drainage type nasolacrimal duct dilator: include the draught line (1) that the front end nylon of dilator is made The outer wall of drainage tube top (2) drainage tube making hollow tubular for plastic cement or plastics after draught line is auxiliary There are the opening of pressurising pipe, drainage tube in the lower end having expansion capsule (3) the expansion capsule that latex or silicon latex make Go out to expand capsule follow-up renew to stretch be connected with pressurising pipe phase adhesion, for the beginning of drainage tube end (4) pressurising pipe End opening end in expansion capsule, continues free after extension is connected one section with the lower end adhesion of drainage tube prolonging Stretch the lower end for pressurising pipe (5) pressurising pipe and be connected that to expand round be ram valve (6).

2. by lacrimal passage pull wire traction, expansion capsule is drawn in nasolacrimal duct according to claim 1, uses Syringe extraction air or liquid are injected by ram valve, can preserve and stay one week air above or liquid not To outward leakage.Outside decapacitation expansion nasolacrimal duct can also liquid in drain lacrimal passage, whole dilator surface scribbles viscous Even stop, epidermal growth factor and lubricant.It is difficult to hypertrophy adhesion again after tear duct dilating, and lacrimal passage can be accelerated Interior mucosal hyperplasia reparation, after draught line, expandable portion is divided into soft tissue expander capsule, and nasolacrimal duct is flat Shape tube chamber, expansion capsule can deform expansion with nasolacrimal duct shape.The a length of full nasolacrimal duct of expansion capsule Length, expansion capsule latter end 1/3rd cyst wall is thickening, when tube drawing after putting in place expanded by nasolacrimal duct, uses syringe Syringe needle inserts air or liquid in ram valve extraction expansion capsule, and expansion capsule becomes thin garden strip, and its external diameter exists Pull out within Φ 1.5mm easily.Whole expansion capsule is resistant to 15 atmospheric pressure.