CN111388843A

CN111388843A - Controllable elbow conduit

Info

Publication number: CN111388843A
Application number: CN202010217313.8A
Authority: CN
Inventors: 秦晓鹏; 魏先锋
Original assignee: Enove Precision Plastics Catheter Co ltd
Current assignee: Enove Precision Plastics Catheter Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-07-10

Abstract

The application discloses a controllable elbow conduit. The catheter includes: the body, the body includes: outer pipe and inlayer pipe are provided with the intermediate layer between outer pipe and the inlayer pipe, still include: the guide wire is arranged on the interlayer; a plurality of material layers are arranged at the elbow of the pipe body, metal rings are arranged among the material layers, and the metal rings are connected with the guide wires; the inner layer conduit and the outer layer conduit are coaxially arranged from inside to outside in sequence, the head end of the inner layer conduit is connected with the head end of the outer layer conduit, and the tail end of the inner layer conduit extends to the outside of the outer layer conduit. The utility model provides a current guide tube, middle pipe, radiography pipe mould when using, and need customize the regulation size, and a plurality of control seal wires control the pipe through the cavity in a plurality of pipes respectively inside the pipe, and the cavity leads to the area of pipe cross-section big promptly the cavity is big in a plurality of pipes, can't stretch into the pipe with minimal access surgery equipment, and the cavity is big also can't get into the problem of tiny blood vessel.

Description

Controllable elbow conduit

Technical Field

The invention relates to the technical field of medical instruments, in particular to a controllable elbow catheter.

Background

Guide catheters, intermediate catheters and contrast catheters are indispensable aids in interventional procedures.

The existing guide tube, the middle guide tube and the radiography guide tube are molded when in use, the specified size is required to be customized according to different blood vessels and body structures of each patient, a plurality of control guide wires control the guide tube in the guide tube through a plurality of inner guide tube cavities respectively, the inner guide tube cavities lead to large area of the section of the guide tube, namely, the cavity is large, a minimally invasive surgery device cannot stretch into the guide tube, and the cavity is large and cannot enter small blood vessels.

Aiming at the problems that the existing guide tube, the middle catheter and the radiography catheter are molded when in use and need to be customized to a specified size, a plurality of control guide wires are respectively used for controlling the catheter in the catheter through a plurality of catheter inner cavities, the plurality of catheter inner cavities lead to large area of the catheter section, namely large cavity, a minimally invasive surgery device cannot be inserted into the catheter, and the cavity is large and cannot enter tiny blood vessels, an effective solution is not provided at present.

Disclosure of Invention

The main aim at of this application provides a controllable elbow pipe, with solve present guide tube, middle pipe, the radiography pipe type of moulding when using, and need customize the regulation size, a plurality of control seal wires control the pipe through the cavity in a plurality of pipes respectively in the pipe the inside, the cavity leads to the area of pipe cross-section big promptly the cavity is big in a plurality of pipes, can't stretch into the pipe with minimal access surgery equipment, the big also unable tiny vascular problem of entering of cavity.

To achieve the above objects, according to one aspect of the present application, a controlled elbow conduit is provided.

A controllable elbow conduit according to the present application, comprising: a pipe body, the pipe body includes: outer layer pipe and inlayer pipe, outer layer pipe with be provided with the intermediate layer between the inlayer pipe, still include: a guidewire disposed in the interlayer; a plurality of material layers are arranged at the elbow of the pipe body, metal rings are arranged among the material layers, and the metal rings are connected with the guide wires; the inner layer conduit and the outer layer conduit are coaxially arranged from inside to outside in sequence, the head end of the inner layer conduit is connected with the head end of the outer layer conduit, and the tail end of the inner layer conduit extends to the outside of the outer layer conduit.

Further, the plurality of material layers includes: the catheter material layer comprises a braided material layer, a spring material layer and a catheter material layer, wherein the braided material layer, the spring material layer and the catheter material layer are connected.

Further, the woven material layer, the spring material layer and the catheter material layer are graded in density.

Further, the method also comprises the following steps: handle and knob mechanism, the body fixed connection that the handle penetrated the handle through the position sleeve, knob mechanism includes: the bearing is fixedly arranged on the handle, the wire coil is clamped with the bearing, and the wire coil is movably connected with the fine adjustment knob.

Further, the method also comprises the following steps: and one end of the steel wire is connected with the metal ring, and the other end of the steel wire is connected with the wire coil.

Furthermore, a pressing type rebounding device is further arranged on the fine adjustment knob.

Further, the guide wire is a metal wire.

Further, the outer layer conduit is made of one of polyurethane, polyamide, terylene or polyvinyl chloride.

Furthermore, the inner layer conduit is made of polytetrafluoroethylene.

In the embodiment of the application, adopt the mode that sets up the intermediate layer, through be provided with the intermediate layer between outer pipe and inlayer pipe, the seal wire sets up in the intermediate layer, the elbow department of body is provided with a plurality of material layers, the purpose that reduction pipe inner chamber and elbow are adjustable has been reached, thereby realized reducing the controllable technological effect of cavity area and elbow, and then solved current finger guide pipe, middle pipe, the type has been moulded to the radiography pipe when using, and need customize the regulation size, a plurality of control seal wires control the pipe through the cavity in a plurality of pipes respectively inside the pipe, the cavity is big promptly for the area that the cavity leads to the pipe cross-section is big in a plurality of pipes, can't stretch into the pipe with minimal access surgery equipment, the cavity is big also can't get into tiny vascular technical.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic diagram of a controllable elbow conduit according to an embodiment of the present application;

figure 2 is a schematic diagram of a material layer structure of a controlled elbow conduit according to an embodiment of the present application;

FIG. 3 is a schematic cross-sectional profile of a prior art catheter;

figure 4 is a schematic cross-sectional profile of a modified catheter.

Description of the reference numerals

1. A pipe body; 2. an outer conduit; 3. an inner conduit; 4. an interlayer; 5. a guide wire; 6. bending the pipe; 61. a layer of material; 611. weaving the material layer; 612. a layer of spring material; 613. a layer of conduit material; 62. a metal ring; 7. a handle; 8. a knob mechanism; 81. a bearing; 82. wire coils; 83. finely adjusting a knob; 84. a press type rebounder; 85. a positioning sleeve; 9. a steel wire.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, 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 partial embodiments of the present application, but not all 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.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1-4, the present application relates to a controllable elbow conduit comprising: body 1, body 1 includes: outer pipe 2 and inlayer pipe 3 are provided with intermediate layer 4 between outer pipe 2 and the inlayer pipe 3, still include: the guide wire 5 is arranged on the interlayer 4; a plurality of material layers 61 are arranged at the elbow 6 of the pipe body 1, metal rings 62 are arranged among the material layers 61, and the metal rings 62 are connected with the guide wire 5;

the inner layer conduit 3 and the outer layer conduit 2 are coaxially arranged from inside to outside in sequence, the head end of the inner layer conduit 3 is connected with the head end of the outer layer conduit 2, and the tail end of the inner layer conduit 3 extends to the outside of the outer layer conduit 2.

Specifically, the tube body 1 is a main body part of the medical catheter and can realize the transmission and intervention effects; the pipe body 1 includes: the outer layer conduit 2 is a conduit compounded on the outer side of the inner layer conduit 3, and can realize the function of being matched with the inner layer conduit 3; the inner layer conduit 3 is a conduit in the pipe body 1, and a cavity is formed in the center of the inner layer conduit for liquid or other media to pass through, so that the circulation and transmission effects can be realized; an interlayer 4 is arranged between the outer layer conduit 2 and the inner layer conduit 3, and a plurality of cavities can be avoided by arranging the interlayer 4, so that the area of the conduit can be reduced;

further comprising: the guide wire 5 has the functions of leading, supporting, opening and exchanging in the vascular intervention operation; the guide wire 5 is arranged on the interlayer 4, so that the effect of passing the guide wire 5 can be realized; the elbow 6 of the pipe body 1 is provided with a plurality of material layers 61, and the elbow 6 of the pipe body 1 is provided with the material layers 61, so that the adjustable effect of the elbow 6 can be realized; metal rings 62 are arranged among the material layers 61, the metal rings 62 are connected with the guide wire 5, the elbow 6 is controlled by stretching, and the bending principle of the elbow 6 is that the parts of the elbow 6 with different sections have different hardness;

inlayer pipe 3 and outer pipe 2 are from interior to outer coaxial arrangement in proper order, and the head end of inlayer pipe 3 and the head end of outer pipe 2 link to each other, and the tail end of inlayer pipe 3 extends to the outside of outer pipe 2, can realize complete pipe effect.

From the above description, it can be seen that the following technical effects are achieved by the present application:

in the embodiment of the application, adopt the mode that sets up intermediate layer 4, through be provided with intermediate layer 4 between outer pipe 2 and inner pipe 3, seal wire 5 sets up in intermediate layer 4, 6 departments of elbow of body 1 are provided with a plurality of material layers 61, the purpose of reducing catheter inner chamber and elbow 6 adjustable has been reached, thereby realized reducing the controllable technological effect of cavity area and elbow 6, and then solved current guide pipe that indicates, middle pipe, the radiography pipe is the type when using, and need customize the regulation size, a plurality of control seal wires 5 carry out the control catheter through the cavity in a plurality of pipes respectively inside the pipe, the cavity is big that the cavity leads to the area of pipe cross-section in a plurality of pipes, can't stretch into the pipe with minimal access surgery equipment, the cavity is big also can't get into tiny vascular technical problem.

As is preferable in the present embodiment, the plurality of material layers 61 includes: a layer of braided material 611, a layer of spring material 612 and a layer of duct material 613, the layer of braided material 611, the layer of spring material 612 and the layer of duct material 613 being connected. By providing the plurality of material layers 61, the effect of density adjustment can be achieved.

As preferred in this embodiment, the braided material layer 611, the spring material layer 612, and the catheter material layer 613 are graded in density. By adopting the density gradual change, the effect of hardness change can be realized, and then a good bending effect is realized.

Preferably, in this embodiment, the method further includes: handle 7 and knob mechanism 8, handle 7 penetrate body 1 fixed connection of handle 7 through position sleeve 85, and knob mechanism 8 includes: bearing 81, drum 82 and fine setting knob 83, bearing 81 fixes and sets up on handle 7, and drum 82 and bearing 81 joint, drum 82 and fine setting knob 83 swing joint. Through being provided with handle 7 and knob mechanism 8, can further realize the effect of adjusting, and then carry out the effect of fine setting as required.

Preferably, in this embodiment, the method further includes: and one end of the steel wire 9 is connected with the metal ring 62, and the other end of the steel wire 9 is connected with the wire coil 82. The transmission of force through the steel wire 9 can be realized, and the effect of controlling the metal ring 62 is further realized.

In the present embodiment, the fine adjustment knob 83 is preferably further provided with a push-type rebounder 84. By arranging the pressing type rebounder 84, the steel wire 9 can be locked by pressing after being adjusted in place, and the steel wire 9 is prevented from moving automatically; when the adjustment is needed, the adjustment can be carried out by pressing again, so that the adjustment is convenient and effective.

In the present embodiment, the guide wire 5 is preferably a metal wire. Sufficient strength and good performance can be ensured.

In this embodiment, the outer catheter 2 is preferably made of one of polyurethane, polyamide, dacron and polyvinyl chloride. And through selection of various materials, the method is easy to realize and operate.

In this embodiment, the inner conduit 3 is preferably made of polytetrafluoroethylene. By using polytetrafluoroethylene, the coating has the characteristics of acid resistance, alkali resistance and resistance to various organic solvents, and is almost insoluble in all solvents.

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

Claims

1. A controlled elbow conduit, comprising: a pipe body, the pipe body includes: an interlayer is arranged between the outer layer conduit and the inner layer conduit,

further comprising: a guidewire disposed in the interlayer;

a plurality of material layers are arranged at the elbow of the pipe body, metal rings are arranged among the material layers, and the metal rings are connected with the guide wires;

the inner layer conduit and the outer layer conduit are coaxially arranged from inside to outside in sequence, the head end of the inner layer conduit is connected with the head end of the outer layer conduit, and the tail end of the inner layer conduit extends to the outside of the outer layer conduit.

2. A controlled elbow conduit in accordance with claim 1, wherein said plurality of material layers comprises: the catheter material layer comprises a braided material layer, a spring material layer and a catheter material layer, wherein the braided material layer, the spring material layer and the catheter material layer are connected.

3. A controlled elbow conduit according to claim 2, wherein the layers of braided material, the layers of spring material and the layers of conduit material are of a graduated density.

4. A controlled elbow conduit in accordance with claim 1 further comprising: handle and knob mechanism, the body fixed connection that the handle penetrated the handle through the position sleeve, knob mechanism includes: the bearing is fixedly arranged on the handle, the wire coil is clamped with the bearing, and the wire coil is movably connected with the fine adjustment knob.

5. A controlled elbow conduit according to claim 4 further comprising: and one end of the steel wire is connected with the metal ring, and the other end of the steel wire is connected with the wire coil.

6. A controlled elbow catheter as claimed in claim 4, wherein the said fine adjustment knob is further provided with a push type rebounder.

7. A controlled elbow catheter as claimed in claim 1, wherein the guide wire is a wire.

8. A controlled elbow conduit according to claim 1 wherein the outer conduit is made of one of polyurethane, polyamide, dacron or polyvinyl chloride.

9. A controlled elbow conduit according to claim 1, wherein the inner conduit is made of ptfe.