CN206228395U

CN206228395U - One step expands method PCN passage Stent assembly

Info

Publication number: CN206228395U
Application number: CN201620797852.2U
Authority: CN
Inventors: 李文成
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-26
Filing date: 2016-07-26
Publication date: 2017-06-09
Anticipated expiration: 2026-07-26

Abstract

The utility model discloses a kind of step expansion method PCN passage Stent assembly, including expander and tearing sheath, the expander includes that tip imports head and orientation lever, for tubular structure is socketed the orientation lever, described one end for importing head away from the tip for tearing sheath is provided with hole clipping to the sheath of tearing.By tearing one end providing holes of sheath for seal wire to be fixed, seal wire comes off the technical solution of the utility model in preventing surgical procedure, substantially increases the efficiency and security of PCN operation.

Description

One step expands method PCN passage Stent assembly

Technical field

The utility model is related to a kind of step expansion method PCN passage Stent assembly.

Background technology

Kidney stone is urinary system common disease, frequently-occurring disease, and multiple to be born in person between twenty and fifty, the incidence of disease of left and right sides is without substantially poor It is different.40%~75% kidney stone patient has different degrees of pain in the back.Calculus is larger, degree of excursion very little, shows as waist acid swollen Discomfort, or have secret anguish or dull pain when body movement increases, influence patient's daily life even results in kidney damage.PCN Operation be one be used for minimally invasive treatment upper urinary tract disease especially in kidney or proximal ureteral calculus most effectual way, percutaneous kidney Videoendoscopic surgery must be set up percutaneous kidney passage can be just smoothed out.

Traditional stone Path Setup step that takes is order multistep expansion method, wherein, puncture in Type B ultrasound guidance, profit Completed with special hollow belt carcass puncture needle, extract nook closing member out, seal wire is placed into renal plevis kidney calices from pin hole, expansion is made to draw with seal wire Lead, expanded with expander from small to large and gradually number needed for increase expander is expanded, last required model Expander is socketed tube channel, and operation path deploying endoscope is set up by tube channel.Due to during expander is exchanged repeatedly Easily there is the abjection of seal wire, fail with Path Setup so as to cause passage to be lost, had a strong impact on entering for PCN operation Journey, while also having potential safety hazard to the healthy of patient.

Utility model content

Main purpose of the present utility model is to provide a kind of step expansion method PCN passage Stent assembly, it is only necessary to a step Expansion smoothly can enter in kidney aggregation system, it is intended to which avoiding exchanging repeatedly expander causes seal wire to be deviate from and then lose operation The risk of passage, improves the efficiency and security of PCN operation.

To achieve the above object, the utility model proposes an a kind of step expand method PCN passage Stent assembly, bag Include expander and tear sheath, the expander includes that tip imports head and orientation lever, and the sheath of tearing is for tubular structure is socketed institute Orientation lever is stated, described one end for importing head away from the tip for tearing sheath is provided with hole clipping.

Preferably, the sheath of tearing is provided with the first scale near the side that the tip imports head.

Preferably, the side for importing head away from the tip that is close to of the orientation lever is provided with the second scale.

Preferably, it is conical structure that the tip imports head, and the orientation lever is cylindrical structure, and the tip imports The axis of head and the orientation lever overlaps.

Preferably, the tip imports and changeover portion is provided between head and orientation lever, and the coning angle of the changeover portion is more than institute State the coning angle that tip imports head.

Preferably, a through hole is provided with the expander, the axis of the through hole is heavy with the axis of the orientation lever Close.

Preferably, the orientation lever is provided with swing handle away from one end that the tip imports head.

Preferably, the external diameter of the swing handle is more than the internal diameter for tearing sheath.

Preferably, it is described tear sheath be it is vertical in point two-piece type structure, including the first demisheath and the second demisheath, described the The one end in the close described hole of one demisheath and the second demisheath is equipped with the protuberance away from the axis direction for tearing sheath.

Preferably, the outer surface for tearing one end near swing handle of sheath is frosting.

A kind of step expansion method PCN passage Stent assembly that technical solutions of the utility model are provided, including expander With tear sheath, the expander includes that tip imports head and orientation lever, the sheath of tearing for tubular structure is socketed the orientation lever, It is more long, sophisticated tapering that the tip of the expander imports head inclined-plane, it is only necessary to which step expansion can set up operation path, prevent passage Seal wire comes off in process of expansion, causes passage to be lost；Meanwhile, described one end for importing head away from tip for tearing sheath is provided with seal wire Hole clipping, can be fixed seal wire by the hole, it is to avoid seal wire is slipped in taking stone operating process, substantially increase PCN operation Efficiency and security.

Brief description of the drawings

In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.

Fig. 1 is the decomposition texture schematic diagram that the step of the utility model one expands method PCN passage Stent assembly；

Fig. 2 is the three-dimensional view of Fig. 1；

Fig. 3 tears the structural representation of sheath for the utility model；

Fig. 4 is the structural representation of the utility model expander.

Drawing reference numeral explanation：

Label	Title	Label	Title
				10	Expander	21	First demisheath
11	Tip imports head	22	Second demisheath
				12	Orientation lever	23	Protuberance
13	Changeover portion	24	Frosting
				14	Swing handle	25	Hole clipping
15	Second scale	26	First scale
				20	Tear sheath

The realization of the utility model purpose, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, belongs to the scope of the utility model protection.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment Relative position relation, motion conditions for being only used for explaining between each part under a certain particular pose (as shown in drawings) etc., such as When really the particular pose changes, then directionality indicates also correspondingly to change therewith.

In addition, and can not be managed such as relating to the description of " first ", " second " etc. is only used for describing purpose in the utility model Solve to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " many in description of the present utility model It is individual " it is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.

In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason Solution, for example, " fixation " can be fixedly connected, or be detachably connected, or integrally；Can mechanically connect, also may be used Be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two connections of element internal Or two interaction relationships of element, unless otherwise clearly restriction.For the ordinary skill in the art, can be with Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.

In addition, the technical scheme between the utility model each embodiment can be combined with each other, but must be with ability Domain those of ordinary skill can be implemented as basis, be will be understood that when the combination appearance of technical scheme is conflicting or cannot realize The combination of this technical scheme does not exist, not within the protection domain of the utility model requirement yet.

Refer to Fig. 1, the utility model proposes an a kind of step expand method PCN passage Stent assembly, including expand Prop 10 includes that tip imports first 11 and orientation lever 12 with sheath 20, the expander 10 is torn, and the sheath 20 of tearing is for tubulose knot Structure is socketed the orientation lever 12, and described one end for importing first 11 away from the tip for tearing sheath 20 is provided with hole clipping 25.

Fig. 1, Fig. 2 are refer to, a kind of step expansion method PCN passage expansion that technical solutions of the utility model are provided Component, including expander 10 and tear sheath 20, (does not mark wherein having packaged and having torn the expander 10 of sheath 20 along the seal wire previously inserted Show) enter kidney aggregation system from body external puncture, then sheath 20 will be torn push kidney aggregation system along expander 10, then Indwelling tears sheath 20 as operation path after taking out expander 10, and seal wire is fixed by the hole clipping 25 torn on sheath 20, prevents hand Seal wire comes off during art, substantially increases the efficiency and security of PCN operation.

According to long-term clinical practice, the chamfer length of the tip importing first 11 of this programme is preferably 2.5cm, is easy to expander The 10 accurate kidney aggregation systems punctured into human body, conveniently carry out step expansion method foundation and take stone passage, greatly simplify Operating procedure, has saved operating time；Hole clipping 25 can be one or more, be arranged on and tear the tail end of sheath 20 and uniform week To distribution, this programme is preferably two edges and tears the symmetrically arranged hole clipping 25 in the axis of sheath 20, while fastening seal wire is ensured, The structure of component is simplified, the efficiency of operation is also improved.

Refer to Fig. 3, it is preferable that the sheath 20 of tearing is provided with the first scale near the side that the tip imports first 11 26。

Tear sheath 20 near it is described tip import first 11 side set scale, be easy to operation process of expansion at any time Understand the depth of expansion, improve the security of operation.

Refer to Fig. 4, it is preferable that the side for importing first 11 away from the tip that is close to of the orientation lever 12 is provided with second Scale 15.

Scale is set near the side that first 11 are imported away from the tip in orientation lever 12, the quarter on sheath 20 is torn in cooperation Angle value, is easy to understand at any time and tears the depth that sheath 20 is advanced along expander 10, improves operation safety.

Preferably, it is conical structure that the tip imports first 11, and the orientation lever 12 is cylindrical structure, the tip Import the axis coincidence of first 11 and the orientation lever 12.

It is conical structure that tip imports first 11, and orientation lever 12 is cylindrical structure, and tip imports first 11 and orientation lever 12 Axis overlap, conical structure tip import it is first 11 coordinate cylindrical structure orientation levers 12, facilitate expander 10 to revolve Turn to puncture into human body and deflection is less likely to occur.

Preferably, the tip imports between first 11 and orientation lever 12 and is provided with changeover portion 13, the circular cone of the changeover portion 13 Angle imports first 11 coning angle more than the tip.

The changeover portion 13 is circular cone structure, and the coning angle of changeover portion 13 imports first 11 coning angle more than tip, makes expansion The change that the diameter of prop 10 imports first 11 to orientation lever 12 from tip is more smoothed, and reduces the penetration Resistance of expander 10, Be more convenient for expander 10 rotation puncture enter human body.

Specifically, a through hole (sign), the axis of the through hole and the orientation lever are provided with the expander 10 12 axis overlaps.

A through hole is provided with expander 10, the axis of through hole overlaps with the axis of orientation lever 12, is easy to expander 10 smoothly enter human body in surgical procedure along seal wire.

Preferably, the orientation lever 12 is provided with swing handle 14 away from one end that the tip imports first 11.

Swing handle 14 is set in the tail end of orientation lever 12, expander 10 smoothly screws in people in being easy to the puncture process of operation Body.

Preferably, the external diameter of the swing handle 14 is more than the internal diameter for tearing sheath 20.

Swing handle 14 with diameter greater than the internal diameter for tearing sheath 20, can make to tear the fixation of sheath 20, will not be from expander 10 Afterbody is slipped.

It is preferably, described to tear the two-piece type structure that sheath 20 is in vertical points, including the first demisheath 21 and the second demisheath 22, One end of the close described hole clipping 25 of the demisheath 22 of first demisheath 21 and second is equipped with away from the axis side for tearing sheath 20 To protuberance 23.

Tear the two-piece type structure that sheath 20 is in vertical points, including the first demisheath 21 and the second demisheath 22, described the first half One end for importing first 11 away from the tip of the demisheath 22 of sheath 21 and second is equipped with protuberance 23, remote in the tail end for tearing sheath 20 Protuberance 23 is set from the axis direction for tearing sheath 20, is easy to the postoperative smooth taking-up for tearing sheath 20, while eliminating tradition The click-on design for tearing the afterbody of sheath 20, structure more simplifies, and it is more convenient to operate.

Preferably, it is frosting 24 to tear sheath 20 near the outer surface of one end of swing handle 14.

Frosting 24 is set in the outer surface near one end that first 11 are imported away from tip for tearing sheath 20, puncture is increased During hand-held frictional force, be easy to being smoothed out for operation.

Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, It is every under inventive concept of the present utility model, the equivalent structure made using the utility model specification and accompanying drawing content is become Change, or directly/be used in other related technical fields indirectly and be included in scope of patent protection of the present utility model.

Claims

1. a kind of step expansion method PCN passage Stent assembly, it is characterised in that including expander and tear sheath, the expansion Prop includes that tip imports head and orientation lever, and the sheath of tearing is for tubular structure is socketed the orientation lever, the back of the body for tearing sheath The one end for importing head from the tip is provided with hole clipping.

2. a step as claimed in claim 1 expands method PCN passage Stent assembly, it is characterised in that the sheath of tearing is leaned on The side that the nearly tip imports head is provided with the first scale.

3. a step as claimed in claim 2 expands method PCN passage Stent assembly, it is characterised in that the orientation lever The second scale is provided near the side for importing head away from the tip.

4. a step as claimed in claim 1 expands method PCN passage Stent assembly, it is characterised in that the tip imports Head is conical structure, and the orientation lever is cylindrical structure, and the tip imports head and the axis of the orientation lever overlaps.

5. a step as claimed in claim 4 expands method PCN passage Stent assembly, it is characterised in that the tip imports Changeover portion is provided between head and orientation lever, the coning angle of the changeover portion imports the coning angle of head more than the tip.

6. a step as claimed in claim 4 expands method PCN passage Stent assembly, it is characterised in that in the expander A through hole is provided with, the axis of the through hole overlaps with the axis of the orientation lever.

7. a step as claimed in claim 1 expands method PCN passage Stent assembly, it is characterised in that the orientation lever is remote The one end for importing head from the tip is provided with swing handle.

8. a step as claimed in claim 7 expands method PCN passage Stent assembly, it is characterised in that outside the swing handle Footpath is more than the internal diameter for tearing sheath.

9. a step as claimed in claim 1 expansion method PCN passage Stent assembly, it is characterised in that the sheath of tearing is Being close to for the two-piece type structure divided in vertical, including the first demisheath and the second demisheath, first demisheath and the second demisheath is described The one end in hole is equipped with the protuberance away from the axis direction for tearing sheath.

10. a step as claimed in claim 1 expands method PCN passage Stent assembly, it is characterised in that described to tear sheath The one end near swing handle outer surface be frosting.