CN113069667A

CN113069667A - Lead and wear device

Info

Publication number: CN113069667A
Application number: CN202110302970.7A
Authority: CN
Inventors: 于波; 徐东岳; 杨光; 刘丹
Original assignee: Hengyi Beijing Medical Technology Co ltd; Harbin Medical University
Current assignee: Hengyi Beijing Medical Technology Co ltd; Harbin Engineering University; Harbin Medical University
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-07-06

Abstract

The utility model provides a lead and wear device, is equipped with including leading the piece of wearing to wear to establish the passageway, wears to establish the passageway and includes first transition and second transition, and the internal diameter of first transition reduces gradually on the first direction, and the internal diameter of second transition reduces gradually on the second direction opposite with the first direction, and the less one end of first transition internal diameter communicates with the less one end of second transition internal diameter. In the angioplasty, the front end of the balloon catheter is inserted into the first transition section, and the outer wall of the balloon catheter abuts against the inner wall of the first transition section. Insert the seal wire in the second transition, the seal wire advances towards the less one end of second transition internal diameter under the guide of second transition, the less one end of second transition internal diameter and the less one end intercommunication of first transition internal diameter, the seal wire is convenient for penetrate the lumen of sacculus pipe under the guide of second transition, reduce the degree of difficulty that the seal wire penetrates the lumen of sacculus pipe, shorten operation time, improve operation efficiency to can improve the operation success rate.

Description

Lead and wear device

Technical Field

The invention relates to the field of medical equipment, in particular to a guide-through device.

Background

Angioplasty is a medical term meaning a procedure to restore the original shape of a stenosed blood vessel, i.e. to its original non-stenosed shape, to restore the blood flow to a level close to normal. Currently, in angioplasty, the inner diameter of the tip of a balloon catheter is narrow, and a guidewire is difficult to insert into the balloon catheter or stent delivery system.

The inventor researches and discovers that the medical instruments used in the existing angioplasty have the following disadvantages:

the guide wire is not easy to insert into the balloon catheter, the operation difficulty is high, and the success rate is high.

Disclosure of Invention

The invention aims to provide a guide-through device which can reduce the operation difficulty, lead wires are easy to insert into balloon catheters, the operation efficiency is improved, and the operation success rate is improved.

The embodiment of the invention is realized by the following steps:

the invention provides a lead-through device, comprising:

the guide-through piece is equipped with and wears to establish the passageway, wears to establish the passageway and includes first transition and second transition, and the internal diameter of first transition reduces gradually on the first direction, and the internal diameter of second transition reduces gradually on the second direction opposite with the first direction, and the less one end of first transition internal diameter communicates with the less one end of second transition internal diameter.

In an alternative embodiment, the inner wall of the first transition section is provided with a blocking structure for abutting against the balloon catheter to limit the balloon catheter from sliding along the first direction.

In an optional embodiment, the through channel further comprises a guide section communicated with one end of the first transition section, which is far away from the second transition section, the inner diameter of the guide section is gradually reduced in the first direction, the end with the smaller inner diameter of the guide section is communicated with the end with the larger inner diameter of the first transition section, and an included angle is formed between the inner wall of the guide section and the inner wall of the first transition section.

In an optional embodiment, the through channel further comprises a correction section, the correction section extends along the first direction, two ends of the correction section are respectively communicated with one end with a smaller inner diameter of the first transition section and one end with a smaller inner diameter of the second transition section, the inner diameters of the correction section are equal everywhere in the first direction, and the inner diameter of the correction section is smaller than the inner diameter of the second transition section, so that a blocking structure is formed at the joint of the correction section and the second transition section.

In an alternative embodiment, the first transition, the orthotic section, and the second transition are coaxially arranged.

In an optional implementation mode, the guide-through piece is provided with an easy-tearing part, the guide-through piece can be broken at the easy-tearing part to form an opening communicated with the through channel, and two ends of the opening respectively extend to one end with a larger inner diameter of the first transition section and one end with a larger inner diameter of the second transition section.

In an optional embodiment, the easy tearing part comprises a plurality of through holes which are arranged at intervals and are communicated with the through passages.

In an optional embodiment, the easy-tearing parts are arranged in a plurality of numbers, and the easy-tearing parts are arranged at intervals in the circumferential direction of the lead-through member.

In an alternative embodiment, the first transition and the second transition are both circular in cross-sectional shape, wherein the cross-section is a plane perpendicular to the first direction or the second direction.

In an alternative embodiment, the lead-through device further comprises a handle, the handle being connected to the lead-through.

The embodiment of the invention has the beneficial effects that:

in summary, the present embodiment provides a guide-through device for assisting the insertion and matching of a guide wire and a balloon catheter. In angioplasty, the front end of the balloon catheter is inserted into the first transition section, the outer wall of the balloon catheter abuts against the inner wall of the first transition section, and the lumen of the balloon catheter is communicated with the first transition section. Insert the seal wire in the second transition, the seal wire advances towards the less one end of second transition internal diameter under the guide of second transition, also advance towards first transition, and simultaneously, the less one end of second transition internal diameter and the less one end intercommunication of first transition internal diameter, the seal wire is convenient for penetrate the lumen of sacculus pipe under the guide of second transition, reduce the degree of difficulty that the seal wire penetrates the lumen of sacculus pipe, shorten operation time, improve operation efficiency, and can improve the operation success rate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a lead-through device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the guide-through device, the guide wire and the balloon catheter in cooperation (the guide wire and the balloon catheter are not cut away) according to the embodiment of the invention.

Icon:

001-guide wire; 002-balloon catheter; 201-lumen; 100-a lead-through; 110-penetrating a channel; 111-a first transition; 112-a second transition; 113-a guide segment; 114-a correction segment; 115-a limit structure; 120-easy tearing part; 200-a handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and fig. 2, the present embodiment provides a lead-through device, including:

the guide-through piece 100, the guide-through piece 100 is equipped with wears to establish passageway 110, wears to establish passageway 110 and includes first transition 111 and second transition 112, and the internal diameter of first transition 111 reduces gradually in the first direction, and the internal diameter of second transition 112 reduces gradually in the second direction opposite with the first direction, and the one end that the internal diameter of first transition 111 is less communicates with the one end that the internal diameter of second transition 112 is less.

The guide-through device provided by the embodiment is used for assisting the insertion and matching of the guide wire 001 and the balloon catheter 002. In angioplasty, the guide wire 001 is firstly placed in a human body, when the balloon catheter 002 is placed in the human body by using the guide wire 001, because the lumen 201 of the balloon catheter 002 is small, the guide wire 001 is exposed out of the human body, and one end of the guide wire 001 is not easy to penetrate through the lumen 201 of the balloon catheter 002, and at the moment, the guide wire 001 and the balloon catheter 002 can be conveniently spliced and matched by using the penetration device. During the use, peg graft the front end of sacculus pipe 002 in first transition 111, the outer wall of sacculus pipe 002 supports with the inner wall of first transition 111 and holds, because first transition 111 is the toper section, sacculus pipe 002 can be fixed a position in first transition 111, and the position is stable. After the balloon catheter 002 is positioned at the first transition section 111, the lumen 201 of the balloon catheter 002 communicates with the first transition section 111. Then, the guide wire 001 is inserted into the second transition section 112, the guide wire 001 advances towards the end with the smaller inner diameter of the second transition section 112 under the guidance of the second transition section 112, namely, towards the first transition section 111, meanwhile, the end with the smaller inner diameter of the second transition section 112 is communicated with the end with the smaller inner diameter of the first transition section 111, the guide wire 001 can be directly inserted into the lumen 201 of the balloon catheter 002 under the guidance of the second transition section 112, the difficulty of the guide wire 001 penetrating into the lumen 201 of the balloon catheter 002 is reduced, the operation time is shortened, the operation efficiency is improved, and the operation success rate can be improved.

In this embodiment, optionally, the lead-through 100 is a solid of revolution, that is, the cross-sectional shape of the lead-through 100 is circular. Specifically, first transition 111 and second transition 112 are conical channel, and the structure is regular, and the processing preparation of being convenient for also is convenient for fix a position seal wire 001 and sacculus pipe 002 to be convenient for guide seal wire 001 and sacculus pipe 002 cooperation of pegging graft.

Referring to fig. 2, optionally, the through-passage 110 further includes a guiding section 113 connected to the end of the first transition section 111 with the larger inner diameter, and a correcting section 114 located between the smaller end of the first transition section 111 and the smaller end of the second transition section.

Specifically, the guide section 113 is a conical channel, the smaller end of the inner diameter of the guide section 113 is communicated with the larger end of the inner diameter of the first transition section 111, and the inner wall of the guide section 113 and the inner wall of the first transition section 111 have an included angle, that is, the vertex angle of the guide section 113 is greater than that of the first transition section 111, the open amplitude of the guide section 113 is greater than that of the first transition section 111, so that the balloon catheter 002 can enter the first transition section 111 from the guide section 113.

The correction segment 114 is configured as a cylindrical channel, the inner diameter of the correction segment 114 is equal to the inner diameter of the smaller end of the inner diameter of the second transition segment 112, the inner diameter of the correction segment 114 is smaller than the inner diameter of the first transition segment 111, and the two ends of the correction segment 114 are respectively communicated with the first correction segment 114 and the second correction segment 114. Meanwhile, the first transition section 111, the second transition section 112, the guide section 113, and the leveling section 114 are coaxially disposed. A limiting structure 115 is formed at the connecting position of the correcting section 114 and the first transition section 111, the limiting structure 115 is an annular limiting surface, the thickness of the annular limiting surface is the difference between the inner diameter of the smaller end of the first transition section 111 and the inner diameter of the correcting section 114, that is, the difference between the inner diameter of the smaller end of the first transition section 111 and the inner diameter of the correcting section 114 is the thickness of the annular limiting surface, and it should be understood that the thickness direction of the annular limiting surface is the radial direction of the circle where the cross-sectional profile of the lead-through member 100 is located. Moreover, the thickness of the annular limiting surface is not less than that of the tube wall of the balloon catheter 002. Or, in other words, the inner diameter of the correction segment 114 is not less than the diameter of the lumen 201 of the balloon catheter 002. So design, when being fixed a position sacculus pipe 002 in first gradual change section 111, the annular pipe terminal surface of sacculus pipe 002 can not shelter from the region that the correction section 114 encloses, and when seal wire 001 penetrated the lumen 201 of sacculus pipe 002 from second gradual change section 112, can not peg graft on the annular pipe terminal surface of sacculus pipe 002, avoid seal wire 001 and annular pipe terminal surface to produce the interference to improve the efficiency that seal wire 001 penetrated sacculus pipe 002.

Meanwhile, the guide wire 001 enters the correction section 114 from the second transition section 112, the correction section 114 is a cylindrical channel with a certain length, and the guide wire 001 is not easy to bend or incline in the correction section 114 and can keep extending linearly, so that the guide wire 001 is convenient to be inserted into the balloon catheter 002.

And the design of limiting structure 115, after sacculus pipe 002 is pegged graft in first gradual change section 111, the annular pipe terminal surface of sacculus pipe 002 can support with limiting structure 115 and hold to avoid sacculus pipe 002 to enter into correction section 114 or second gradual change section 112, be difficult for influencing the location of seal wire 001 and the grafting cooperation of seal wire 001 and sacculus pipe 002.

Referring to fig. 1, in the present embodiment, optionally, the through-guiding member 100 is configured as a plastic member, the through-guiding member 100 is provided with an easy-tearing portion 120, the easy-tearing portion 120 includes a plurality of through holes uniformly arranged along an extending direction of an edge line of a longitudinal section of the through-guiding member 100, and the through holes are all communicated with the through-passage 110. The longitudinal section of the lead-through 100 is a section passing through the axis of the lead-through 100. Utilize lead and wear piece 100 and accomplish the back of wearing to establish of seal wire 001 and sacculus pipe 002, tear along easily tearing portion 120 and lead and wear piece 100 to make lead and wear piece 100 and form the opening in easily tearing portion 120, the open-ended both ends extend to the both ends of wearing to establish passageway 110 respectively, promptly, lead and wear piece 100 disconnection in easily tearing portion 120 department, can follow the opening part and will lead and wear piece 100 and seal wire 001 and sacculus pipe 002 separation, thereby avoid leading and wear piece 100 to influence the operation.

By providing the tear-off portion 120, separation of the lead-through member 100 from the guide wire 001 and the balloon catheter 002 is facilitated.

It should be noted that the number of the tear enabling portions 120 is plural, and the plural tear enabling portions 120 are arranged at intervals in the circumferential direction of the lead-through member 100. For example, in this embodiment, the number of the easy-to-tear portions 120 is two, the two easy-to-tear portions 120 are symmetrically arranged, after the guide wire 001 and the balloon catheter 002 are completely inserted, the guide piece 100 is torn at the two easy-to-tear portions 120, and the guide piece 100 is divided into two parts, so as to be conveniently separated from the guide wire 001 and the balloon catheter 002.

In this embodiment, optionally, the lead-through device further includes two handles 200, and both handles 200 are connected to the lead-through 100 and located at the same end of the lead-through 100. Further, the two handles 200 and the two tear portions 120 are alternately arranged in the circumferential direction of the wearing member 100. When the guide-through member 100 is torn, the two handles 200 are respectively held, and a force is applied to the two handles 200 to make the two handles 200 radially away from each other, so that the guide-through member 100 is torn at the two easy-to-tear portions 120, which facilitates the separation of the guide-through member 100, the guide wire 001 and the balloon catheter 002.

The device is worn to lead that this embodiment provided for supplementary seal wire 001 and the sacculus pipe 002 of wearing to establish reduces the degree of difficulty that seal wire 001 and sacculus pipe 002 peg graft, and the seal wire 001 of being convenient for is pegged graft in sacculus pipe 002, shortens operation time, saves the time cost, improves operation efficiency.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lead-through device, comprising:

the guide-through piece, the guide-through piece is equipped with wears to establish the passageway, it includes first transition and second transition to wear to establish the passageway, the internal diameter of first transition reduces gradually on the first direction, the internal diameter of second transition with the second direction opposite in the first direction reduces gradually, the less one end of first transition internal diameter with the less one end intercommunication of second transition internal diameter.

2. The lead-through device of claim 1, wherein:

wear to establish the passageway still include with first transition keeps away from the guide segment of the one end intercommunication of second transition, the internal diameter of guide segment is in reduce gradually on the first direction, the less one end of guide segment internal diameter with the great one end intercommunication of first transition internal diameter, just the inner wall of guide segment with the inner wall of first transition has the contained angle.

3. The lead-through device of claim 1, wherein:

the inner wall of the first transition section is provided with a blocking structure which is used for abutting against the balloon catheter to limit the balloon catheter to slide along the first direction.

4. The lead-through device of claim 3, wherein:

wear to establish the passageway and still include the correction section, the correction section is followed the first direction extends, the both ends of correction section communicate respectively the less one end of first gradual change section internal diameter with the less one end of second gradual change section internal diameter, the internal diameter of correction section is in department equals on the first direction, just the internal diameter of correction section is less than the internal diameter of second gradual change section, with the correction section with the handing-over department of second gradual change section forms block structure.

5. The lead-through device of claim 4, wherein:

the first transition section, the correction section and the second transition section are coaxially arranged.

6. The lead-through device of claim 1, wherein:

the lead and wear the piece and be equipped with easily tearing the portion, lead wear the piece can in easily tear a fracture formation of department with wear to establish the opening of passageway intercommunication, the open-ended both ends extend respectively to the great one end of first transition section internal diameter and the great one end of second transition section internal diameter.

7. The lead-through device of claim 6, wherein:

the easy-tearing part comprises a plurality of through holes which are arranged at intervals and communicated with the penetrating channel.

8. The lead-through device of claim 6, wherein:

the easy tearing part is provided with a plurality of easy tearing parts which are arranged at intervals in the circumferential direction of the guide-through piece.

9. The lead-through device of claim 1, wherein:

the first transition section and the second transition section are both circular in cross-sectional shape, wherein the cross-section is a plane perpendicular to the first direction or the second direction.

10. The lead-through device of claim 1, wherein:

the guide-through device further comprises a handle, and the handle is connected with the guide-through piece.