CN208852217U

CN208852217U - A kind of dilating catheter with measurement function

Info

Publication number: CN208852217U
Application number: CN201820133933.1U
Authority: CN
Inventors: 鲍峻峻
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-26
Filing date: 2018-01-26
Publication date: 2019-05-14
Anticipated expiration: 2028-01-26

Abstract

The utility model discloses a kind of dilating catheters with measurement function, it is related to the field of medical instrument technology, only there is the planning function based on the prior art and can not understand and judge the position of dilating catheter tube head, and can not precise measurement extent of disease and the problem of directly determining stent length and propose.The utility model includes conduit insertion guide section and ductal ectasia measuring section, conduit inserting paragraph is fixedly connected with ductal ectasia measuring section, developing layer is provided on conduit insertion guide section, conduit insertion guide section and ductal ectasia measuring section junction are provided with the first developing ring, and development scale is provided on the outer wall of ductal ectasia measuring section.The utility model has the advantage of the length of the position that in addition to completing basic dilating effect, can also determine diseased region and directly measurement diseased region, thus directly, accurately determine the length for being sent into bracket, reduce the operating time.

Description

A kind of dilating catheter with measurement function

Technical field

The utility model relates to the field of medical instrument technology, and in particular to a kind of dilating catheter with measurement function.

Background technique

Currently, ERCP (through endoscopic retrograde cholangiopancreatography) is mainly used for gallbladder stricture of pancreatic duct with dilating catheter or closes The dilation therapy of the diseased region of plug, after diseased region expansion, Stent Implantation, makes diseased region keep expansion state at once. Existing dilating catheter is by scope working clamp road, under the guidance seal wire auxiliary with developing function, into target lumen, benefit Diseased region is reached with X-ray examination monitoring dilating catheter, after expanding diseased region by the conduit of different-diameter, merging is corresponding Bracket supports narrow or occlusion site to reach, and so that diseased region is restored drainage unobstructed.Extent of disease is measured in existing operation Or determine stent length method be X-ray divide into fixed rack distal end, proximal location, after by dilating catheter or guidance seal wire head end It is moved to rack far end position, and determines dilating catheter or the internal relative position of seal wire head end and external relative position is guided to make To measure starting point；It is monitored down by X-ray, mobile dilating catheter or guidance seal wire head end use graduated scale to mount proximal end position The position moved in vitro is measured, so that it is determined that extent of disease or determining stent length, this operating method are time-consuming.

In addition, instrument used or seal wire are softer, and under lumen distortion or expansion state, seal wire easily angulation or distortion therewith, And there is the problem of measurement inaccuracy, it can not accurately determine the length for being sent into bracket, repeated measurement is more time-consuming, therefore is badly in need of opening Send out a kind of simple, directly measurement length of lesion intervention method or instrument.Dilating catheter is selected to be as the reason of carrier, Dilating catheter diameter and diameter used in subsequent bracket especially plastic stent, material are similar, and the state of dilating catheter substantially may be used To reflect the state of subsequent bracket；Furthermore existing dilating catheter use is also defective, only has a developing ring, conduit insertion section It grows and does not develop, therefore, have an X-rayed lower dilating catheter by developing ring and determine position of the dilating catheter in body lumen, for disease Become with the unobvious patient of remote lumen distention, on the one hand longer insertion section limitation expansion segment, on the one hand can not be true by narrow section Fixed nonvisualized conduit head-end location, there are certain damage risks.Therefore, a kind of development is developed more preferably and can be to internal disease Become range to carry out looking at lower measurement and the dilating catheter of expansion straight being the effective way for solving problems in clinic at present.

Utility model content

The utility model solve the technical issues of be in the prior art can not understand judge dilating catheter head end position, It can not precise measurement extent of disease and the problem of directly determining stent length.

The utility model, which adopts the following technical solutions, solves above-mentioned technical problem:

A kind of dilating catheter with measurement function, including conduit insertion guide section and ductal ectasia measuring section, it is described to lead Pipe insertion guide section is fixedly connected with ductal ectasia measuring section, is provided with developing layer on the conduit insertion guide section, described to lead Pipe insertion guide section and ductal ectasia measuring section junction are provided with the first developing ring, on the outer wall of the ductal ectasia measuring section It is provided with development scale.

Preferably, at least two development scale is evenly distributed in circumferential directions along its axis in ductal ectasia measuring section.

Preferably, the starting point of the development scale is that conduit is inserted into guide section and ductal ectasia measuring section junction.

Preferably, the conduit insertion guide section is conical plastic conduit, and the ductal ectasia measuring section is isometrical The larger diameter end of cylindrical plastic conduit, the conduit insertion guide section is connect with ductal ectasia measuring section.

Preferably, the length of the conduit insertion guide section is 1cm-3cm.

Preferably, the length of the conduit insertion guide section is 2cm.

Preferably, the second developing ring is additionally provided on the outer wall of the ductal ectasia measuring section.

Preferably, it is provided with the second developing ring of at least two on the outer wall of the ductal ectasia measuring section, with the first developing ring Adjacent distance of second developing ring away from the first developing ring is 4cm.

Preferably, the distance between described second adjacent developing ring is equal.

Preferably, the distance between described second adjacent developing ring is 4cm.

The utility model has the beneficial effects that: through the above technical solutions, provided by the utility model a kind of with survey The dilating catheter for measuring function is provided with developing layer on conduit insertion guide section, so that conduit insertion guide section is developed in X-ray, side Just it determines conduit insertion guiding fragment position, can both prevent conduit to be inserted into the too deep damaged portion tubule chamber of guide section, and also be bracket Head end positioning；It is inserted into the first developing ring of guide section and the setting of ductal ectasia measuring section junction by conduit, determines that expansion is led Whether pipe reaches diseased region and works；Development scale is provided on the outer wall of ductal ectasia measuring section, it, can in vivo under X-ray Directly to measure the length of diseased region；In vitro, the distance mobile by development tape measure dilating catheter, calculates lesion Position length, thus directly, accurately determine be sent into bracket length, reduce the operating time.

It is furnished at least two development scale in circumferential directions along its axis average mark in ductal ectasia measuring section, can make to show Shadow scale appears in range of visibility.

The diameter change of guide section and ductal ectasia measuring section is inserted by conduit, it is circle that one side conduit, which is inserted into guide section, Taper plastic conduit, is conducive to through diseased region, on the one hand utilizes expansion measuring section expansion lumen of a body vessel narrow or occlusion Position.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the dilating catheter with measurement function of the utility model embodiment.

Fig. 2 is that 2 development position of rule of cross section structure of ductal ectasia measuring section provided by the embodiment of the utility model are shown It is intended to.

Fig. 3 is that 4 development position of rule of cross section structure of ductal ectasia measuring section provided by the embodiment of the utility model are shown It is intended to.

1- conduit is inserted into guide section in Fig. 1；2- ductal ectasia measuring section；The first developing ring of 3-；4- development scale；5- development Scale starting point；The second developing ring of 6-.

Specific embodiment

To make the structure feature to the utility model and the effect of being reached has a better understanding and awareness, to compared with Good examples and drawings cooperate detailed description, are described as follows:

Embodiment 1

As shown in Figure 1, a kind of dilating catheter with measurement function, including conduit insertion guide section 1 and ductal ectasia are surveyed Section 2 is measured, conduit insertion guide section 1 is fixedly connected with ductal ectasia measuring section 2, the outer surface of conduit insertion guide section 1 or interior table Face is provided with developing layer, and developing layer is made of developing material, and conduit insertion guide section 1 can be made to develop under X-ray, facilitate determination Conduit is inserted into 1 position of guide section.Conduit insertion guide section 1 and 2 junction of ductal ectasia measuring section are provided with the first developing ring 3, Determine whether narrow part reaches expansion diameter.

The development scale 4 that 2 or more are furnished in circumferential directions along its axis average mark of ductal ectasia measuring section 2, development mark The length of ruler 4 can be arranged according to actual needs.As shown in Fig. 2, in the average in circumferential directions along its axis of ductal ectasia measuring section 2 2 development scales 4 are distributed with；As shown in figure 3, being furnished with 4 in circumferential directions along its axis average mark in ductal ectasia measuring section 2 Develop scale 4, and development scale 4 can be made to appear in range of visibility.

Development scale 4 is made of developing material, can develop under X-ray, and development scale starting point 5 is conduit insertion guiding The junction of section 1 and ductal ectasia measuring section 2.

It is conical plastic conduit that conduit, which is inserted into guide section 1, is conducive to through diseased region, ductal ectasia measuring section 2 is The larger diameter end of isometrical cylinder plastic conduit, conduit insertion guide section 1 is connect with ductal ectasia measuring section 2.

The length that conduit is inserted into guide section 1 can be 1cm, 2cm or 3cm, can specifically be arranged according to actual needs.

It is provided with the second developing ring of at least two 6 on the outer wall of ductal ectasia measuring section 2, can be 2,4 or 7, Specific number can be arranged according to actual needs；Second developing ring 6 adjacent with the first developing ring 3 away from the first developing ring 3 at a distance from For 4cm, the spacing between the second adjacent developing ring 6 is equal, and generally 4cm, spacing size can also be arranged according to actual needs.

In mobile dilating catheter, the second developing ring 6 or development scale at 2 rear end of ductal ectasia measuring section can also be passed through 4, the mobile distance of dilating catheter is measured in vitro, measures the length of diseased region, and does not need other graduated scale measurement, with Determine the length of Stent Implantation.

Working principle of the utility model is: being inserted into guide section 1 and ductal ectasia measuring section by conduit when intervening operation 2 diameter change expands luminal stenosis or occlusion site, is inserted into guide section 1 by the conduit that head end can develop and determines The position of conduit head end is inserted into the first developing ring 3 of guide section 1 and the setting of 2 junction of ductal ectasia measuring section by conduit, really Determine whether dilating catheter reaches diseased region and work, in process of expansion, under X-ray, passes through the second developing ring 6 or development scale 4 directly measure the length of diseased region；In vitro, dilating catheter movement can also be measured by the second developing ring 6 or development scale 4 Distance, calculate the length of diseased region, thus directly, accurately determine be sent into bracket length.

Above are merely preferred embodiments of the utility model, the protection scope of the utility model is not limited in above-mentioned reality Example is applied, it is within the protection scope of the present utility model with various process programs of the utility model design without substantial differences.

Claims

1. a kind of dilating catheter with measurement function, it is characterised in that: be inserted into guide section and ductal ectasia measurement including conduit Section, the conduit insertion guide section are fixedly connected with ductal ectasia measuring section, are provided with development on the conduit insertion guide section Layer, the conduit insertion guide section and ductal ectasia measuring section junction are provided with the first developing ring, the ductal ectasia measurement Development scale is provided on the outer wall of section.

2. a kind of dilating catheter with measurement function according to claim 1, it is characterised in that: measured in ductal ectasia Section is evenly distributed at least two development scale in circumferential directions along its axis.

3. a kind of dilating catheter with measurement function according to claim 1, it is characterised in that: the development scale Starting point is the junction that conduit is inserted into guide section and ductal ectasia measuring section.

4. a kind of dilating catheter with measurement function according to claim 1, it is characterised in that: the conduit insertion is led It is conical plastic conduit to section, the ductal ectasia measuring section is isometrical cylindrical plastic conduit, the conduit insertion The larger diameter end of guide section is connect with ductal ectasia measuring section.

5. a kind of dilating catheter with measurement function according to claim 1, it is characterised in that: the conduit insertion is led It is 1cm-3cm to the length of section.

6. a kind of dilating catheter with measurement function according to claim 5, it is characterised in that: the conduit insertion is led It is 2cm to the length of section.

7. a kind of dilating catheter with measurement function according to claim 1, it is characterised in that: the ductal ectasia is surveyed It measures and is additionally provided with the second developing ring on the outer wall of section.

8. a kind of dilating catheter with measurement function according to claim 7, it is characterised in that: the ductal ectasia is surveyed It measures and is provided with the second developing ring of at least two on the outer wall of section, second developing ring adjacent with the first developing ring is away from the first developing ring Distance be 4cm.

9. a kind of dilating catheter with measurement function according to claim 7, it is characterised in that: described adjacent second The distance between developing ring is equal.

10. a kind of dilating catheter with measurement function according to claim 9, it is characterised in that: described adjacent the The distance between two developing rings are 4cm.