CN205458898U - A soft lens sheath for stone is got to kidney - Google Patents

Abstract

The utility model discloses a soft lens sheath for stone is got to kidney, including the inner tube, the inner tube divide into first section, second section, the flexibility of second section is greater than the flexibility of first section, the outer tube, outer pipe box is in on the inner tube, just the second section of inner tube is followed the terminal terminal surface of outer tube stretches out, elastic clamping spare, elastic clamping spare is fixed the first section of inner tube, be used for with outer tube and inner tube chucking are fixed. The utility model discloses it is more comfortable to insert the urethra, and the guidance quality is better, the modern design, and the practicality is strong, easily popularizes and applies.

Description

The soft lens sheath of stone is taken for kidney

Technical field

This utility model relates to technical field of medical instrument, particularly relates to a kind of soft lens sheath taking stone for kidney.

Background technology

Flexible ureteroscope imports sheath, it is also possible to referred to as soft lens sheath, and it is logical that it sets up operation for the operation of Urology Surgery soft lens Road, to assist soft lens to enter urinary system tract with other apparatus, provides seriality operating walk way for it, can be when apparatus exchanges repeatedly Protection ureter, reduces the probability causing mucous membrane of ureter wound, and protection precision instruments and soft lens are from damage simultaneously.

But, the flexible pipe that existing soft lens sheath is used is the entirety that a hardness is homogeneous, and the hardness of its front end is relatively big, right Patient causes discomfort, also easily patient is caused damage, and this problems demand solves.

Utility model content

The purpose of this utility model is to overcome the deficiency of above-mentioned prior art to provide a kind of and take the soft of stone for kidney Mirror sheath.

For achieving the above object, this utility model provides a kind of soft lens sheath taking stone for kidney, including:

Inner tube, said inner tube is divided into first paragraph, second segment, and the flexibility of described second segment is more than the flexibility of first paragraph；

Outer tube, described outer tube sleeve is in said inner tube, and the second segment of said inner tube is stretched from the distal end faces of described outer tube Go out；

Elastic Fastener, described elastic Fastener is fixed on the first paragraph of said inner tube, for by described outer tube and inner tube Card fastens.

Preferably, the first paragraph of said inner tube and second segment plastically welding.

Preferably, on described outer tube at the described first paragraph outside be cased with fixing seat, the periphery of described fixing seat is to radially Extend and form ring-type lug, nib；

Described elastic Fastener includes that U-shaped exterior of finger, described exterior of finger include symmetrically arranged two lugs, back to finger The side of casting die is arranged with two card-tight parts matched with described lug, nib.

Preferably, the inner side of described exterior of finger is also formed with plastic resilient structure, in order to strengthen the intensity of described card-tight part And resilience force is provided.

Preferably, described plastic resilient structure is circular arc, and its two end is separately fixed at the inner side of described exterior of finger.

Preferably, described card-tight part is L-shaped barb.

Preferably, the barb of two described L-shaped is also formed with ' recessed ' shape gap in relative side, in order to match with lug, nib Close.

Preferably, the outer surface of described outer tube is additionally provided with hydrophilic coating.

Preferably, the end of said inner tube tapers off to a point.

The beneficial effects of the utility model are: this utility model uses stagewise structure, first paragraph and second due to inner tube The material that Duan Caiyong pliability is different is made, and i.e. the pliability of second segment is more than the pliability of first paragraph, when by this utility model Device when stretching into the urethra of patient, first second segment contacts with urethra, owing to its flexibility is higher, so the most comfortable, inserts More smoothly, and the pain and the damage that cause patient are all greatly lowered, additionally, due to the hardness of second segment is relatively big, this The overall guidance quality just making inner tube is preferable, it is simple to operation.By using the urine contact of hydrophilic coating, hydrophilic coating and urethra After, increase substantially the lubricity of outer tube.By using elastic Fastener, fixing seat inner and outer tubes to be torn open easily Point.This utility model good stability, reliability is high, easy for operation, novel in design, practical, it is easy to promotion and implementation.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram of this utility model one embodiment；

Dry part and the structural representation observed from other direction is omitted if Fig. 2 is Fig. 1；

Fig. 3 is the generalized section of Fig. 2；

Reference:

Inner tube 10；

First paragraph 101；

Second segment 102；

Most advanced and sophisticated 1021；

Outer tube 20；

Elastic Fastener 30；

Exterior of finger 31；

Lug 311；

Plastic resilient structure 32；

Card-tight part 33；

' recessed ' shape gap 331；

Fixing seat 40；

Lug, nib 401.

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

Detailed description of the invention

Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng It is exemplary for examining the embodiment that accompanying drawing describes, it is intended to be used for explaining this utility model, and it is not intended that to this utility model Restriction.

In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be only for It is easy to describe this utility model and simplifying describe rather than instruction or the device of hint indication or element must have specifically Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in this utility model.

It is the overall structure schematic diagram of this utility model one embodiment referring to figs. 1 through Fig. 3, Fig. 1；It is some that Fig. 2 is that Fig. 1 omits Parts and from other direction observe structural representation；Fig. 3 is the generalized section of Fig. 2.Fig. 2 and Fig. 3 eliminates outer tube 20。

Referring to Fig. 1, this utility model provides a kind of soft lens sheath taking stone for kidney, including inner tube 10, said inner tube 10 are divided into first paragraph 101, second segment 102, and the flexibility of described second segment 102 is more than the flexibility of first paragraph 101；Outer tube 20, described Outer tube 20 is enclosed within said inner tube 10, and the second segment 102 of said inner tube 10 stretches out from the distal end faces of described outer tube 20；Elastic Fastener 30, described elastic Fastener 30 is fixed on the first paragraph 101 of said inner tube 10, for by described outer tube 20 and inner tube 10 Card fastens.

As an embodiment of the present utility model, the first paragraph 101 of said inner tube 10 and second segment 102 plastically welding.

As an embodiment of the present utility model, on described outer tube 20 at the described first paragraph 101 outside be cased with fixing Seat 40, the periphery of described fixing seat 40 is to radially extending the lug, nib 401 that formation is ring-type；Described elastic Fastener 30 includes U-shaped Exterior of finger 31, described exterior of finger 31 includes symmetrically arranged two lugs 311, and the side back to exterior of finger 31 is arranged with two The card-tight part 33 matched with described lug, nib 401.

As an embodiment of the present utility model, the inner side of described exterior of finger 31 is additionally provided with plastic resilient structure 32, uses To strengthen the intensity of described card-tight part 30 and to provide resilience force.

As an embodiment of the present utility model, described plastic resilient structure 32 is in circular arc, and its two end is solid respectively It is scheduled on the inner side of described exterior of finger 31.

Manufacturing when, described elastic Fastener 30 can be one-body molded.

As an embodiment of the present utility model, such as Fig. 2, described card-tight part 33 is L-shaped barb.

As an embodiment of the present utility model, such as Fig. 2 and Fig. 3, the barb of two described L-shaped is in relative side also It is formed ' recessed ' shape gap 331, in order to match with lug, nib 401.

As an embodiment of the present utility model, the outer surface of described outer tube 20 is additionally provided with hydrophilic coating.

As an embodiment of the present utility model, the end of said inner tube 10 tapers off to a point 1021.

Further, the external diameter of described outer tube 20 should meet the demand inserting patient's urethra, and can not be to patient's Urethra causes damage.The smooth outer surface of described outer tube 20 and can not have agnail, reduce frictional force.Said inner tube 10 and outer tube 20 Employing medical material is made, and has good histocompatibility and is difficult to cause allergic reaction.Further, this utility model Can also have outer packaging bag, in aseptic condition in described outer package.Described outer packaging bag can be made up of polythene material；Institute State and gap can also be set on outer packaging bag, it is easy to outer packaging bag is torn.

In sum, this utility model uses stagewise to construct due to inner tube 10, and first paragraph 101 and second segment 102 use The material that pliability is different is made, and i.e. the pliability of second segment 102 is more than the pliability of first paragraph 101, when by this utility model Device when stretching into the urethra of patient, first second segment 102 contacts with urethra, owing to its flexibility is higher, so the most comfortable, inserts Enter more smooth, and the pain and the damage that cause patient are all greatly lowered, additionally, due to the hardness of second segment 102 is relatively Greatly, this just makes the overall guidance quality of inner tube 10 preferable, it is simple to operation.By using the urine of hydrophilic coating, hydrophilic coating and urethra After liquid contact, increase substantially the lubricity of outer tube 20.By using elastic Fastener 30, fixing seat 40 can be easily by interior Pipe 10 and outer tube 20 split.This utility model good stability, reliability is high, easy for operation, novel in design, practical, Enforcement easy to spread.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be Any one or more embodiments or example combine in an appropriate manner.

Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is without departing from this utility model to restriction of the present utility model Principle and objective in the case of above-described embodiment can be changed in the range of this utility model, revise, replace and Modification.

Claims (9)

1. the soft lens sheath taking stone for kidney, it is characterised in that including:

Inner tube, said inner tube is divided into first paragraph, second segment, and the flexibility of described second segment is more than the flexibility of first paragraph；

Outer tube, described outer tube sleeve is in said inner tube, and the second segment of said inner tube stretches out from the distal end faces of described outer tube；

Elastic Fastener, described elastic Fastener is fixed on the first paragraph of said inner tube, for by described outer tube and interior pipe clamp Fixing.

The soft lens sheath taking stone for kidney the most according to claim 1, it is characterised in that the first paragraph of said inner tube and Two-stage nitration plastically welding.

The soft lens sheath taking stone for kidney the most according to claim 1, it is characterised in that near described the on described outer tube At one section, outer being cased with fixes seat, and the periphery of described fixing seat is to radially extending the lug, nib that formation is ring-type；

Described elastic Fastener includes that U-shaped exterior of finger, described exterior of finger include symmetrically arranged two lugs, back to exterior of finger Side be arranged with two card-tight parts matched with described lug, nib.

The soft lens sheath taking stone for kidney the most according to claim 3, it is characterised in that the inner side of described exterior of finger also shape Become to have plastic resilient structure, in order to strengthen the intensity of described card-tight part and to provide resilience force.

The soft lens sheath taking stone for kidney the most according to claim 4, it is characterised in that described plastic resilient structure is circle Arc, its two end is separately fixed at the inner side of described exterior of finger.

The soft lens sheath taking stone for kidney the most according to claim 3, it is characterised in that described card-tight part is L-shaped Barb.

The soft lens sheath taking stone for kidney the most according to claim 6, it is characterised in that the barb of two described L-shaped exists Relative side is also formed with ' recessed ' shape gap, in order to match with lug, nib.

The soft lens sheath taking stone for kidney the most according to claim 1, it is characterised in that the outer surface of described outer tube is also It is provided with hydrophilic coating.

The soft lens sheath taking stone for kidney the most according to claim 1, it is characterised in that the end of said inner tube forms point End.