CN112870528A

CN112870528A - Medical multistage controllable bend adjusting pipe

Info

Publication number: CN112870528A
Application number: CN202011545570.0A
Authority: CN
Inventors: 李峰; 杨亮
Original assignee: Shanghai Yuban Medical Technology Co ltd
Current assignee: Shanghai Yuban Medical Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-06-01
Anticipated expiration: 2040-12-23
Also published as: CN112870528B

Abstract

The application discloses a medical multi-stage controllable bend adjusting pipe which comprises a pipe body, a protective cavity and a drawing wire, wherein the protective cavity is arranged on the outer wall of the pipe body, the drawing wire is fixedly arranged in the protective cavity in a penetrating manner, and a bend adjusting assembly for adjusting the bending degree of the pipe body is arranged in the protective cavity; the bending adjusting assembly comprises a sliding block and a clamping block for blocking the sliding block, the sliding block is fixed on a drawn wire, the clamping block is fixed on the inner wall of the protective cavity, a second buffering block is fixed on the top surface of the clamping block, the first buffering block is opposite to the second buffering block, the bending adjusting assemblies are arranged in a plurality, the distance between the adjacent bending adjusting assemblies is gradually increased from top to bottom, the drawn wire comprises a thick portion and a thin portion, and the diameter of the thick portion is larger than that of the thin portion. This application has the effect that improves the adaptability of pipeline body in the human body.

Description

Medical multistage controllable bend adjusting pipe

Technical Field

The application relates to medical equipment, in particular to a medical multistage controllable bend adjusting pipe.

Background

Medical tubing is currently used in a variety of therapies, one of which is used in the human body to create passageways within the body and provide a basis for other follow-up therapies.

In the prior art, a medical pipeline as shown in fig. 1 includes a pipeline body 1 for providing a passage for subsequent treatment, a protective cavity 2 is integrally connected to a side wall of the pipeline body 1, a wire drawing 3 is fixed in the protective cavity 2, and one end of the wire drawing 3 is fixed on an outer wall of the pipeline body 1. Because human blood vessel has the crooked of different degrees, for the convenience pipeline body 1 smoothly passes through the crooked blood vessel of human body, through using power pulling wire 3, realize that pipeline body 1 is crooked.

The inventor believes that, because human blood vessels have different bending degrees, the bending degree of the pipeline body is controlled by the tensile force acting on the drawn wires, and the drawn wires can be broken when the tensile force is too large.

Disclosure of Invention

In order to improve the adaptability of pipeline body in the human body, this application provides a medical multistage controllable accent return bend.

The technical scheme is as follows: a medical multi-stage controllable bend adjusting pipe comprises a pipe body, a protective cavity and a drawing wire, wherein the protective cavity is arranged on the outer wall of the pipe body, the drawing wire is fixedly arranged in the protective cavity in a penetrating manner, and a bend adjusting assembly for adjusting the bending degree of the pipe body is arranged in the protective cavity; the bending adjusting assembly comprises a sliding block and a clamping block for blocking the sliding block, the sliding block is fixed on the drawing wire, and the clamping block is fixed on the inner wall of the protection cavity.

As a preferred technical scheme, a first buffer block is fixed on the bottom surface of the sliding block; and a second buffer block is fixed on the top surface of the clamping block, and the first buffer block is opposite to the second buffer block.

As a preferable technical solution, the number of the bend adjusting assemblies is provided with a plurality of bend adjusting assemblies, and the distance between adjacent bend adjusting assemblies gradually increases from top to bottom.

As a preferable technical scheme, the drawn wire comprises a thick part and a thin part, and the diameter of the thick part is larger than that of the thin part.

Preferably, the duct body includes a hard portion and a soft portion, the hard portion and the soft portion are integrally formed, and the hard portion has a structural hardness greater than that of the soft portion.

As a preferred technical scheme, the bottom end of the protective cavity is provided with a limiting ring for limiting the radial moving range of the wire drawing.

As a preferable technical scheme, the number of the drawn wires is provided with a plurality of drawn wires, and the number of the drawn wires is the same as that of the bending adjusting assemblies.

As a preferable technical scheme, a through hole for limiting the passing of the drawn wire is formed in the fixture block.

Preferably, the surface area of the slider is larger than the inner diameter of the through hole.

As a preferred technical scheme, the protection cavity is provided with a plurality of protection cavities, and the plurality of protection cavities are distributed on the outer wall of the pipeline body in an array manner.

Has the advantages that: when the wire drawing is pulled, the slide block positioned at the uppermost end is abutted against the clamping block, namely the upper part of the pipeline body is bent firstly; then, continuously pulling the drawn wire with force, wherein the drawn wire drives the sliding block at the middle position in the protective cavity to abut against the clamping block, namely the middle position of the pipeline body is bent; and finally, continuously and forcefully pulling the drawn wire, wherein the drawn wire drives the slide block at the bottommost end in the protective cavity to abut against the clamping block, namely the bottom end of the pipeline body is bent. Through the protection chamber way is buckled many times, improve the precision that the protection chamber way buckled, realize multistage controllable simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art configuration;

FIG. 2 is a schematic cross-sectional view of a first embodiment of the present application;

FIG. 3 is a top view of the first embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a second embodiment of the present application;

FIG. 5 is a top view of the second embodiment of the present application;

fig. 6 is a schematic structural view of a wire drawing in the embodiment of the present application.

Reference numerals: 1. a pipe body; 11. a hard portion; 12. a soft portion; 2. protecting the cavity; 3. drawing wires; 31. a thick portion; 32. details; 321. a handle; 4. a bending adjusting component; 41. a slider; 411. a first buffer block; 42. a clamping block; 420. a through hole; 421. a second buffer block; 5. a limit ring.

Detailed Description

The disclosure of the present application may be understood more readily by reference to the following detailed description of preferred embodiments of the application and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. In case of conflict, the present specification, including definitions, will control.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.

The first embodiment is as follows: referring to fig. 2 and 3, a medical multi-stage controllable bend adjusting pipe comprises a pipe body 1, a protective cavity 2, a wire drawing 3 and a bend adjusting assembly 4 for adjusting the bending degree of the pipe body 1; the pipeline body 1 is a hollow cylinder, the protection cavity channel 2 is a hollow cylinder, the diameter of the protection cavity channel 2 is smaller than that of the pipeline body 1, and the protection cavity channel 2 is fixed in the axial direction of the outer wall of the pipeline body 1 through bonding; one end of the wire drawing 3 is fixed at one end of the protection cavity channel 2 through bonding, and the wire drawing 3 penetrates through the protection cavity channel 2; the bending adjusting component 4 is fixed in the protective cavity 2. The drawn wire 3 is pulled by hand, and the drawn wire 3 drives the pipeline body 1 and the protection cavity 2 to move; when the pipe passes through a bent part, the wire 3 is continuously pulled by force, the pipe body 1 is bent under the action of the bending adjusting assembly 4, and the protective cavity 2 is also bent along with the bending of the pipe body 1; finally, the pipe body 1 passes through the bending portion.

Referring to fig. 2 and 3, the duct body 1 includes a hard portion 11 and a soft portion 12, the hard portion 11 and the soft portion 12 are integrally formed, and the structural hardness of the hard portion 11 is greater than that of the soft portion 12; the pipeline body 1 is made of medical polymer materials, is generally used for soft tissues such as trachea, larynx, bladder, heart, biliary tract, ureter and the like, and mostly adopts organic silicon rubber, polytetrafluoroethylene, polyurethane rubber and the like.

Referring to fig. 2 and 3, the wire 3 is made of medical metal wire; the drawn wire 3 comprises a thick part 31 and a thin part 32, the diameter of the thick part 31 is larger than that of the thin part 32, and the thick part 31 is positioned in the protective cavity 2, so that the structural strength of the thick part 31 is larger than that of the thin part 32.

Referring to fig. 2 and 3, the bending adjustment assembly 4 includes a slider 41 and a fixture block 42 for blocking the slider 41, the slider 41 is fixed on the wire drawing 3 by welding, and the fixture block 42 is fixed on the inner wall of the protection cavity 2 by adhesion; the fixture block 42 is provided with a through hole 420 for limiting the drawn wire 3 to pass through, and the through hole 420 is an original hole; and the surface area of the slider 41 is larger than the inner diameter of the through-hole 420.

Referring to fig. 2 and 3, a first buffer block 411 is fixed to a bottom surface of the slider 41; a second buffer block 421 is fixed on the top surface of the fixture block 42, and the first buffer block 411 is opposite to the second buffer block 421; the first buffer block 411 and the second buffer block 421 are both soft rubber blocks. Before the slider 41 contacts the latch 42, the first buffer block 411 and the second buffer block 421 are abutted to weaken the impact force between the slider 41 and the latch 42.

Referring to fig. 2 and 3, the bottom end of the protection cavity 2 is provided with a limiting ring 5 for limiting the radial movement range of the wire drawing 3, so that the wire drawing 3 is prevented from directly contacting the protection cavity 2 and damaging the protection cavity 2.

Referring to fig. 2 and 3, a plurality of drawing wires 3 are provided, and the number of the drawing wires 3 is the same as that of the bending adjusting assemblies 4; on the one hand, the structural strength of the wire drawing 3 is increased, and on the other hand, the pulling force borne by the wire drawing 3 corresponds to the number of the bending adjusting assemblies 4.

The second embodiment is different from the first embodiment in that:

referring to fig. 4 and 5, three bending adjusting assemblies 4 are provided, the three bending adjusting assemblies 4 are distributed along the axial direction of the protective cavity 2, and the distance between adjacent bending adjusting assemblies 4 gradually increases from top to bottom, i.e. the distance between the sliding block 41 and the clamping block 42; when the drawn wire 3 is pulled, the slide block 41 at the uppermost end is abutted against the fixture block 42, namely, the upper part of the pipeline body 1 is bent firstly; then, the drawn wire 3 is continuously pulled forcibly, and the drawn wire 3 drives the sliding block 41 at the middle position in the protective cavity 2 to abut against the clamping block 42, namely the middle position of the pipeline body 1 is bent; and finally, continuously and forcefully pulling the drawn wire 3, wherein the drawn wire 3 drives the slide block 41 at the bottommost end in the protective cavity 2 to abut against the clamping block 42, namely the bottom end of the pipeline body 1 is bent. Through the multiple bending of the protection cavity channel 2, the bending precision of the protection cavity channel 2 is improved, and meanwhile, multi-stage controllability is realized.

Referring to fig. 4 and 5, the protection chamber 2 is provided with four, and four protection chamber 2 arrays distribute at the outer wall of pipeline body 1, and four protection chamber 2 are used for the direction that accurate control pipeline body 1 buckles, and accurate control pipeline body 1 takes place the angle of buckling, further improves the precision of buckling of pipeline body 1.

The third embodiment is different from the first and second embodiments in that:

referring to fig. 6, a handle 321 is fixed to the end of the thin portion 32 away from the thick portion 31, and the handle 321 facilitates the user to operate the wire 3.

The foregoing examples are merely illustrative and serve to explain some of the features of the methods described herein. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the present application. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims

1. The utility model provides a controllable accent return bend of medical multistage, includes pipeline body (1), protection chamber way (2) and wire drawing (3), protection chamber way (2) set up on the outer wall of pipeline body (1), wire drawing (3) are worn to establish and are fixed in protection chamber way (2), its characterized in that: a bending adjusting component (4) for adjusting the bending degree of the pipeline body (1) is arranged in the protective cavity (2);

the bending adjusting assembly (4) comprises a sliding block (41) and a clamping block (42) for blocking the sliding block (41), the sliding block (41) is fixed on the drawing wire (3), and the clamping block (42) is fixed on the inner wall of the protective cavity (2).

2. The medical multistage controllable adjustable elbow pipe according to claim 1, characterized in that: a first buffer block (411) is fixed on the bottom surface of the sliding block (41);

a second buffer block (421) is fixed on the top surface of the clamping block (42), and the first buffer block (411) is opposite to the second buffer block (421).

3. The medical multistage controllable adjustable elbow pipe according to claim 1, characterized in that: the number of the bending adjusting components (4) is provided with a plurality of bending adjusting components, and the distance between the adjacent bending adjusting components (4) is gradually increased from top to bottom.

4. The medical multistage controllable adjustable elbow pipe according to claim 1, characterized in that: the drawn wire (3) comprises a thick part (31) and a thin part (32), wherein the diameter of the thick part (31) is larger than that of the thin part (32).

5. The medical multistage controllable adjustable elbow pipe according to claim 1, characterized in that: the pipeline body (1) comprises a hard part (11) and a soft part (12), wherein the hard part (11) and the soft part (12) are integrally formed, and the structural hardness of the hard part (11) is greater than that of the soft part (12).

6. The medical multistage controllable adjustable elbow pipe according to claim 1, characterized in that: and a limiting ring (5) for limiting the radial moving range of the drawing wire (3) is arranged at the bottom end of the protection cavity (2).

7. The medical multistage controllable adjustable elbow pipe according to claim 2, characterized in that: the number of the drawn wires (3) is provided with a plurality of drawn wires, and the number of the drawn wires (3) is the same as that of the bending adjusting assemblies (4).

8. The medical multistage controllable adjustable elbow pipe according to claim 1, characterized in that: the fixture block (42) is provided with a through hole (420) for limiting the drawing wire (3) to pass through.

9. The medical multistage controllable adjustable elbow according to claim 8, characterized in that: the surface area of the sliding block (41) is larger than the inner diameter of the through hole (420).

10. The medical multistage controllable adjustable elbow pipe according to claim 1, characterized in that: the protection cavity is provided with a plurality of (2), and a plurality of protection cavity (2) are distributed on the outer wall of the pipeline body (1) in an array manner.