Medical catheter with hardness capable of being changed in multiple sections

Abstract

The utility model discloses a medical catheter capable of changing hardness in multiple sections, which belongs to the technical field of medical catheters and is characterized in that an adjusting catheter is mounted at the joint of a medical catheter main body, a positioning adhesive part is mounted on the outer ring of the adjusting catheter in a ring shape, and the adjusting catheter is of an extrudable structure and can be extruded in multiple directions. In the extrusion process, when extrusion is carried out towards one side, adhesion and positioning are carried out through the positioning adhesion piece on the single side, and when the whole adjusting catheter is extruded, adhesion is carried out through the positioning adhesion piece on the adjusting catheter at the same time; according to the medical catheter, the hardness of the contact parts of the pipe fittings can be increased by extruding and adjusting the catheters at the same time for stacking connection, the multi-section adjusting function can be achieved, the two ends of the medical catheter body are each provided with a connector, a limiting piece is installed in each connector, a three-way piece is installed on each limiting piece, and a connector is installed on the outer side of each three-way piece and connected with the corresponding catheter; and the split-flow injection function is achieved.

Description

Technical Field

[0001] The utility model relates to a medical catheter with multi-stage variable hardness, belonging to the technical field of medical catheters. Background Art

[0002] For example, a medical catheter disclosed in application number: CN116999672A includes: a catheter body, a limiting structure and an ultrasonic transducer; wherein the catheter body includes a distal segment, the limiting structure is used to clamp the ultrasonic transducer and fix the ultrasonic transducer in the inner cavity of the distal segment, and the limiting structure limits the bending curvature and direction of the ultrasonic transducer when clamping the ultrasonic transducer, and the limiting structure fixes the ultrasonic transducer in the inner cavity of the distal segment of the catheter body. The limiting structure can limit the position of the ultrasonic transducer in the catheter body and the shape of the ultrasonic transducer, so that the performance of the ultrasonic transducer when combined with other functional structures (such as a deformation control device) can be predicted.

[0003] Based on the search and analysis, the existing technology still has deficiencies:

[0004] In the prior art, the bending curvature and direction of the ultrasonic transducer are clamped and fixed by a limiting structure. The steering structure of the prior art adjusts the bending angle and direction according to different sections as shown in the main figure of the prior art. The prior art and the catheter structure have a high cost and cannot achieve multi-angle adjustment at the same section. The prior art cannot increase the hardness of the pipe fittings by adding superposition. The prior art cannot achieve the function of splicing the catheter and the adjustment tube according to needs.

[0005] Therefore, there is a need for a medical catheter with variable hardness in multiple sections to improve the above-mentioned deficiencies. Utility Model Content

[0006] The main purpose of the utility model is to provide a multi-directional adjustable, diversion-type medical catheter with multi-stage variable hardness.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] A medical catheter with variable hardness in multiple stages, comprising a medical catheter body;

[0009] An adjusting catheter is installed on the main body of the medical catheter, and positioning adhesive parts are distributed in an annular manner on the outer ring of the adjusting catheter;

[0010] A shunt piece is installed at the outer end of the medical catheter body.

[0011] Preferably, the flow divider includes a limiter, a tee and a joint;

[0012] A tee piece is installed in the main body of the medical catheter, a limiting piece is installed on one side of the tee piece, and a joint is installed on the other side of the tee piece.

[0013] Preferably, interfaces are respectively provided on the medical catheter body and the regulating catheter, and the medical catheter body, the regulating catheter and the three-way piece are interconnected.

[0014] Preferably, the regulating catheter is a large and a small alternating folding structure.

[0015] Preferably, the regulating catheter is a four-way extrusion or stretching structure, and the regulating catheter is fixedly connected by a positioning adhesive.

[0016] Preferably, the medical catheter body and the regulating catheter are fixedly connected by a connector, and the medical catheter body and the regulating catheter are connected by threaded sealing connection, snap-fit ​​sealing connection or adhesive sealing connection.

[0017] Preferably, the joints on the tee are connected in at least three groups.

[0018] Beneficial technical effects of the utility model:

[0019] The utility model provides a medical catheter with multi-stage variable hardness. The medical catheter body is a catheter body structure. An adjusting catheter is installed at the connection of the medical catheter body. The outer ring of the adjusting catheter is annularly installed with a positioning adhesive. The adjusting catheter is an extrudable structure. The adjusting catheter can be extruded in multiple directions. During the extrusion process, when extruding to one side, it is adhered and positioned by the positioning adhesive on one side. When the adjusting catheter is extruded as a whole, it is adhered simultaneously by the positioning adhesive on the adjusting catheter. By alternately installing the medical catheter body and the adjusting catheter, the application can increase the hardness of the contact part of the pipe by extruding the adjusting catheter at the same time for stacking and connecting. The application can realize the function of multi-stage adjustment.

[0020] Interfaces are respectively provided at both ends of the medical catheter body, a limit piece is installed in the interface, a tee is installed on the limit piece, a joint is installed on the outside of the tee, and the joint is connected to the catheter to achieve the function of diversion injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a device according to a preferred embodiment of a medical catheter with variable hardness in multiple stages of the present invention;

[0022] Figure 2 It is an enlarged structural view of the A position of a preferred embodiment of a medical catheter with variable hardness in multiple stages according to the utility model;

[0023] Figure 3It is a schematic diagram of the pipe structure of a preferred embodiment of a medical catheter with multi-stage variable hardness according to the utility model;

[0024] Figure 4 It is an enlarged view of the structure at position B of a preferred embodiment of a medical catheter with variable hardness in multiple stages according to the utility model.

[0025] In the figure: 1. Medical catheter body; 2. Adjustment catheter; 3. Connector; 4. Interface; 5. Limiter; 6. Tee; 7. Connector; 8. Positioning adhesive. DETAILED DESCRIPTION

[0026] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0027] like Figure 1 - Figure 4 As shown, the present embodiment provides a medical catheter with variable hardness in multiple stages, comprising a medical catheter body 1;

[0028] An adjusting catheter 2 is installed on the medical catheter body 1, and a positioning adhesive 8 is distributed in an annular shape on the outer ring of the adjusting catheter 2;

[0029] A shunt is installed at the outer end of the medical catheter body 1 .

[0030] The flow divider includes a limiter 5, a tee 6 and a joint 7;

[0031] A tee piece 6 is installed in the medical catheter body 1 , a limiting member 5 is installed on one side of the tee piece 6 , and a connector 7 is installed on the other side of the tee piece 6 .

[0032] Interfaces 4 are respectively provided on the medical catheter body 1 and the regulating catheter 2 , and the medical catheter body 1 , the regulating catheter 2 , and the tee piece 6 are interconnected.

[0033] The regulating catheter 2 is a large and a small alternating folding structure.

[0034] The regulating catheter 2 is a four-way extrusion or stretching structure, and the regulating catheter 2 is fixedly connected by a positioning adhesive 8 .

[0035] The medical catheter body 1 and the regulating catheter 2 are fixedly connected by a connector 3 , and the medical catheter body 1 and the regulating catheter 2 are connected by threaded sealing connection, snap-fit ​​sealing connection or adhesive sealing connection.

[0036] The joints 7 on the tee piece 6 are connected in at least three groups.

[0037] like Figure 1 - Figure 4As shown, the working process of the medical catheter with multi-stage variable hardness provided by the present embodiment is as follows: the medical catheter body 1 and the adjustment catheter 2 are alternately installed together, and after installation, the curvature and direction of the catheter bending are adjusted by squeezing the angle of the adjustment catheter 2, and the positioning adhesive 8 on one side is used for adhesion and positioning, and the adjustment catheter 2 is squeezed at the same time to stack the folds on the adjustment catheter 2 together to achieve local hardening of the catheter, and after stacking, the positioning adhesive 8 on the adjustment catheter 2 is used for adhesion and positioning, and after adjustment, the limiter 5 is fixedly connected to the interface 4, and after connection, the shunt catheter is fixedly connected to the joint 7 on the tee 6, and it can be used after installation.

[0038] Embodiment 1

[0039] like Figure 1 , Figure 3 and Figure 4 The medical catheter body 1 is a catheter body structure, and an adjusting catheter 2 is installed at the connection of the medical catheter body 1. The outer ring of the adjusting catheter 2 is annularly installed with a positioning adhesive 8. The adjusting catheter 2 is an extrudable structure. The adjusting catheter 2 can be extruded in multiple directions. During the extrusion process, when it is extruded to one side, it is adhered and positioned by the positioning adhesive 8 on one side. When the adjusting catheter 2 is extruded as a whole, it is adhered simultaneously by the positioning adhesive 8 on the adjusting catheter 2. By alternately installing the medical catheter body 1 and the adjusting catheter 2, the present application can increase the hardness of the contact part of the pipe by simultaneously extruding the adjusting catheter 2 for stacking connection, and the present application can realize the function of multi-stage adjustment.

[0040] Embodiment 2

[0041] like Figure 1 and Figure 2 The medical catheter body 1 is provided with interfaces 4 at both ends, a limit member 5 is installed in the interface 4, a tee 6 is installed on the limit member 5, a joint 7 is installed on the outside of the tee 6, and the joint 7 is connected to the catheter to realize the function of diversion injection.

[0042] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A medical catheter with variable hardness in multiple stages, comprising a medical catheter body (1); Features: An adjusting catheter (2) is installed on the medical catheter body (1), and positioning adhesive parts (8) are distributed in an annular shape on the outer ring of the adjusting catheter (2); A flow divider is installed at the outer end of the medical catheter body (1).

2. The medical catheter with variable hardness in multiple stages according to claim 1, characterized in that: The flow dividing member comprises a limiter (5), a tee member (6) and a joint (7); A tee piece (6) is installed in the medical catheter body (1), a limiting piece (5) is installed on one side of the tee piece (6), and a joint (7) is installed on the other side of the tee piece (6).

3. The medical catheter with variable hardness in multiple stages according to claim 1, characterized in that: Interfaces (4) are respectively provided on the medical catheter body (1) and the regulating catheter (2), and the medical catheter body (1), the regulating catheter (2) and the three-way piece (6) are interconnected.

4. The medical catheter with variable hardness in multiple stages according to claim 1, characterized in that: The regulating catheter (2) is a large and a small alternating folding structure.

5. The medical catheter with variable hardness in multiple stages according to claim 1, characterized in that: The regulating conduit (2) is a four-way extrusion or stretching structure, and the regulating conduit (2) is fixedly connected by a positioning adhesive (8).

6. The medical catheter with variable hardness in multiple stages according to claim 1, characterized in that: The medical catheter body (1) and the regulating catheter (2) are fixedly connected by a connector (3), and the medical catheter body (1) and the regulating catheter (2) are connected by threaded sealing, snap-fit ​​sealing or adhesive sealing.

7. The medical catheter with variable hardness in multiple stages according to claim 1, characterized in that: The joints (7) on the tee (6) are connected in at least three groups.

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