CN205459230U

CN205459230U - Y type metal tectorial membrane air flue support

Info

Publication number: CN205459230U
Application number: CN201620071641.0U
Authority: CN
Inventors: 张�杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-25
Filing date: 2016-01-25
Publication date: 2016-08-17
Anticipated expiration: 2026-01-25

Abstract

The utility model relates to a Y type metal tectorial membrane air flue support, be the skeleton of " Y " venturi tube column structure and one cover including one membrane structure on the skeleton outer wall, the skeleton includes that a main skeleton and two settings are in branch's skeleton of main skeleton one end, its characterized in that: the front of main skeleton sets up an axially extended breach along main skeleton. The utility model discloses be Y " set up the axially extended breach of a main skeleton in edge on the front of the main skeleton of venturi tube column structure to it has the membrane structure to cover at the surface of skeleton, so the utility model discloses after air flue knuckle position is put into to the air flue support, wall behind the breach laminating trachea, again because the soft structure that the wall supported for nos cartilage behind the trachea, the motion of the membrane structure that consequently can locate through the breach promotes airway secretion's discharge.

Description

The metal film coated airway stent of Y type

Technical field

This utility model relates to a kind of metal film coated airway stent of Y type, belongs to medical instruments field.

Background technology

Narrow and the neighbouring fistula of air flue bulge region needs to place Y type support and treats, and current selectable Y type support has three kinds:

The first is the metal film coated support of self-expansion type, and its feature is: be 1. easily placed, and 2. the thin internal diameter of cradle wall is big, 3. can be taken off, and is 4. easily caused ischesis, 5. economical cheap.Ischesis is the subject matter affected the treatment in clinic.

The second is silicon stent, and its feature is: being 1. not easy to place, 2. support wall thickness internal diameter is little, 3. can be taken off, and is 4. easily caused ischesis, the most domestic the most expensive.This support is not easy placement, support wall thickness internal diameter is little, be easily caused the more problems such as ischesis, and this support price at home is much more expensive at present in addition.

The third is Dynamic support, and this support by German doctor Freitag utility model, its feature is: be not easy the most very much to place, 2. the moderate internal diameter of cradle wall is moderate, 3. can be taken off, 4. the soft movable airway secretions that contributes to of support rear wall is discharged, the most domestic current without this product.The problem of this support maximum is that placement is extremely difficult, limits it in clinical application.

Air flue Y type support, owing to being positioned over bulge region, so general stationarity is fine, will not be shifted over.But Y type support has two distinct issues: first y-type structure is more complicated than monotubular support, it is relatively difficult to place；It two is that y-type structure covers left and right main bronchus and part trachea, and therefore the discharge on airway secretions affects the biggest.And above-mentioned three kinds of Y type supports are summed up: although the metal film coated support of the first self-expansion type is easily placed, but be easily caused ischesis；The second silicon stent is neither easily placed, and is easily caused again ischesis；Discharge although the third Dynamic support contributes to airway secretions, but be very difficult to place.Therefore, existing support all cannot solve two subject matters that current Y type support is faced.

Summary of the invention

For the problems referred to above, the purpose of this utility model is to provide a kind of metal film coated airway stent of Y type being easily placed and not easily leading to ischesis.

For achieving the above object, this utility model is by the following technical solutions: a kind of metal film coated airway stent of Y type, the membrane structure on described skeleton outer wall is overlayed on including a skeleton and in Y-shaped tubular structure, described skeleton includes that a main framing and two is arranged on the branched backbone of described main framing one end, it is characterised in that: arrange one in the front of described main framing along the axially extended breach of main framing.

Described skeleton is formed by the braiding of niti-shaped memorial alloy silk material.

Described membrane structure is beyond the end 1～1.5mm of described main framing；Described membrane structure is beyond the end 1～1.5mm of described branched backbone.

The end of described main framing and the end of each described branched backbone use closing-in structure.

The end less than the diameter of described main framing 0.5～1mm being positioned on described main framing；The end less than the diameter of described branched backbone 0.5～1mm being positioned on described branched backbone.

Described membrane structure uses pellosil.

The width of described breach occupy described main framing girth 1/3.

This utility model is owing to taking above technical scheme, it has the advantage that 1, this utility model is in Y " an axially extended breach along main framing is set on the front of the main framing of shape tubular structure; and it is covered with membrane structure at the outer surface of skeleton; so after this utility model airway stent puts into air flue bulge region; breach laminating trachea rear wall; again because trachea rear wall is the flexible structure without cartilage support, therefore can be promoted the discharge of airway secretions by the motion of the membrane structure of indentation, there.2, this utility model due to skeleton by niti-shaped memorial alloy silk material braiding form, therefore, airway stent can radially flatten before inserting air flue, and air flue to be inserted removes external force later, the inflatable recovery of airway stent is to original shape so that airway stent may be easily placed into the air flue of patient.3, this utility model is owing to membrane structure is beyond the end 1～1.5mm of skeleton, therefore, it is possible to reduce the stimulation to tunica mucosa tracheae of the airway stent end, thus prevents granulation tissue hyperplasia.4, this utility model all uses closing-in structure due to each end of skeleton, therefore, it is possible to prevent from stimulating tracheal wall to produce granulation tissue.This utility model is a kind of ideal Y type airway stent, has practical value and promotional value.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model；

Fig. 2 be in Fig. 1 A-A to cross-sectional schematic；

Fig. 3 be in Fig. 1 B-B to cross-sectional schematic.

Detailed description of the invention

With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, this utility model includes that a skeleton 1 and in Y-shaped tubular structure overlays on the membrane structure 2 on described skeleton outer wall, skeleton 1 is formed by the braiding of niti-shaped memorial alloy silk material, it is easy to this utility model airway stent radially flattened before inserting air flue, removing external force after air flue to be inserted, the inflatable recovery of airway stent is to original shape.Skeleton 1 includes that a main framing 11 and two is arranged on the branched backbone 12 of main framing 11 one end, arranges one in the front of main framing 11 along the axially extended breach 13 of main framing 11.After this utility model airway stent puts into air flue bulge region, breach 13 is fitted trachea rear wall, owing to trachea rear wall is the flexible structure supported without cartilage, therefore can be promoted the discharge of airway secretions by the motion of the membrane structure 2 at breach 13.

Further, membrane structure 2 is beyond the end 1～1.5mm of main framing 11；Membrane structure, beyond the end 1～1.5mm of branched backbone 12, so can reduce the stimulation to tunica mucosa tracheae of the airway stent end, thus prevent granulation tissue hyperplasia.

Further, closing-in structure, the end less than the diameter of main framing 11 0.5～1mm being positioned on main framing 11 are used in the end of main framing 11 and each branched backbone 12；The end less than the diameter of branched backbone 12 0.5～1mm being positioned on branched backbone 12, this closing-in structure is prevented from stimulating tracheal wall to produce granulation tissue.

Further, membrane structure 2 uses pellosil.

Further, the width of breach 13 occupies the 1/3 of main framing 11 girth, and through repeatedly verifying, when breach 13 uses above-mentioned width, at trachea rear wall, the moving situation of membrane structure 2 is optimal.

The various embodiments described above are merely to illustrate this utility model; the structure of the most each parts, connected mode etc. all can be varied from; every equivalents carried out on the basis of technical solutions of the utility model and improvement, the most should not get rid of outside protection domain of the present utility model.

Claims

1. the metal film coated airway stent of Y type, the membrane structure on described skeleton outer wall is overlayed on including a skeleton and in Y-shaped tubular structure, described skeleton includes that a main framing and two is arranged on the branched backbone of described main framing one end, it is characterised in that: arrange one in the front of described main framing along the axially extended breach of main framing.

2. the metal film coated airway stent of Y type as claimed in claim 1, it is characterised in that: described skeleton is formed by the braiding of niti-shaped memorial alloy silk material.

3. the metal film coated airway stent of Y type as claimed in claim 1 or 2, it is characterised in that: described membrane structure is beyond the end 1～1.5mm of described main framing；Described membrane structure is beyond the end 1～1.5mm of described branched backbone.

4. the metal film coated airway stent of Y type as claimed in claim 1 or 2, it is characterised in that: the end of described main framing and the end of each described branched backbone use closing-in structure.

5. the metal film coated airway stent of Y type as claimed in claim 4, it is characterised in that: the end less than the diameter of described main framing 0.5～1mm being positioned on described main framing；The end less than the diameter of described branched backbone 0.5～1mm being positioned on described branched backbone.

6. the metal film coated airway stent of Y type as claimed in claim 1 or 2, it is characterised in that: described membrane structure uses pellosil.

7. the metal film coated airway stent of Y type as claimed in claim 1, it is characterised in that: the width of described breach occupies the 1/3 of described main framing girth.