An over-the-needle system for controlling deployment of a sheath

Abstract

The utility model relates to the technical field of catheter sheath regulation and control, especially a sheath type regulation and control device applied to disposable catheter sheaths, which comprises an external assembly frame, a turnover closing cover plate is installed on the assembly surface of the external assembly frame, an internal assembly groove for installing the disposable catheter sheath is arranged on the assembly surface of the external assembly frame and the turnover closing cover plate, and an external adjustment frame is installed on the side wall of the external assembly frame through a flexible connecting belt. The sheath type regulation and control device applied to the disposable catheter sheath adopts a sheath type structure design, can be directly sleeved on the existing catheter sheath, and is very simple and convenient to assemble and disassemble. The external adjustment frame is installed on the side wall of the external assembly frame through the flexible connecting belt, the external adjustment frame is sleeved on the external catheter, and then the flow or temperature of the catheter is adjusted by the hand control adjustment module inside the external control port, so that the operation is very simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of catheter sheath control technology, and in particular to an outer sheath control device for disposable catheter sheaths. Background Technology

[0002] The catheter sheath is one of the auxiliary guiding devices for peripheral and intracardiac minimally invasive interventional procedures. It plays a crucial role in percutaneous coronary intervention, percutaneous interventional closure, and atrial septal puncture. By establishing a connection between the body's blood vessels and the external environment, an auxiliary delivery system delivers diagnostic or therapeutic instruments to the target lesion site.

[0003] Current catheter sheaths form a multi-channel system with the valve body and external catheters. However, current catheter sheaths can only perform simple internal material feeding and cannot control the temperature and flow rate inside different channels, resulting in a single and simple control method. Utility Model Content

[0004] The technical problem this invention aims to solve is that current catheter sheaths can only simply guide materials inside, and cannot control the temperature and flow rate inside different pipes, resulting in a single and simple control method.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a jacket-type control device for disposable catheter sheaths, including an outer assembly frame, a flip-close cover plate installed on the assembly surface of the outer assembly frame, an internal assembly groove for installing disposable catheter sheaths provided on the assembly surfaces of the outer assembly frame and the flip-close cover plate, an outer adjustment frame installed on the side wall of the outer assembly frame by a flexible connecting strip, and an outer control port for internally setting a manual adjustment module is opened on the side wall of the outer adjustment frame.

[0006] The outer assembly frame has an integrally structured outer limiting block on its side wall. The flip-close cover is fitted onto the outer limiting block by the outer limiting frame on the side wall and is snapped into place with the outer assembly frame.

[0007] The external adjustment frame includes an external mounting frame connected to the flexible connecting strip and an external limiting frame snapped onto the external mounting frame.

[0008] The outer control port is located on the outer mounting frame. The manual adjustment module includes an inner control box fixed inside the outer control port, an inner control guide rail installed on the inner wall of the inner control box, an inner sliding extrusion block slidably installed in the inner control guide rail, a metal extrusion spring installed on the inner end of the inner sliding extrusion block, and an electric heating element installed on the inner wall of the metal extrusion spring.

[0009] The inner side of the internal control guide rail is provided with a plurality of inner limiting grooves.

[0010] An external control cover that mates with the inner limiting groove is elastically fitted on the outer surface of the internal sliding extrusion block.

[0011] The beneficial effects of this utility model are:

[0012] (1) The jacket-type control device of this utility model for disposable catheter sheath adopts a jacket-type structure design, which can be directly fitted onto the existing catheter sheath, making it very simple and convenient to install and remove;

[0013] (2) An external adjustment frame is installed on the side wall of the external assembly frame by a flexible connecting strip. The external adjustment frame is then fitted onto the external conduit. The flow rate or temperature of the conduit is then adjusted by the manual adjustment module inside the external control port. The operation is very simple and convenient. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the manual adjustment module in this utility model. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Figure 1 and Figure 2 The illustrated jacket-type control device for disposable catheter sheaths includes an outer assembly frame 1, a flip-close cover plate 2 mounted on the assembly surface of the outer assembly frame 1, an internal assembly groove for mounting the disposable catheter sheath on the assembly surfaces of the outer assembly frame 1 and the flip-close cover plate 2, and an outer adjustment frame 4 mounted on the side wall of the outer assembly frame 1 via a flexible connecting strip 3, and an outer control port for internally setting a manual adjustment module 5 is opened on the side wall of the outer adjustment frame 4.

[0020] To facilitate snap-fit ​​fixing, the outer assembly frame 1 has an integral outer limiting block 6 on its side wall. The flip-close cover 2 is fitted onto the outer limiting block 6 by the outer limiting frame 7 on the side wall and snap-fits with the outer assembly frame 1.

[0021] The external assembly frame 1 and the flip-close cover 2 are fitted onto the outside of the catheter sheath, forming a fixed external shell on the outside of the catheter sheath.

[0022] To facilitate external assembly and fixation, the external adjustment frame 4 includes an external mounting frame 41 connected to the flexible connecting strip 3 and an external limiting frame 42 snapped onto the external mounting frame 41.

[0023] The external mounting frame 41 and the external limiting frame 42 are fitted and fixed to the outside of the main catheter or branch catheter of the catheter sheath. The installation method of the external mounting frame 41 and the external limiting frame 42 is the same as the installation method of the external assembly frame 1 and the flip-close cover plate 2.

[0024] To facilitate external control, an external control port is provided on the external mounting frame 41. The manual adjustment module 5 includes an internal control box 51 fixed inside the external control port, an internal control guide rail 52 installed on the inner wall of the internal control box 51, an internal sliding extrusion block 53 slidably installed in the internal control guide rail 52, a metal extrusion spring 54 installed on the inner end of the internal sliding extrusion block 53, and an electric heating element 55 installed on the inner wall of the metal extrusion spring 54.

[0025] The electric heating element 55 is existing technology. It is powered by a battery inside the power compartment fixed on the external assembly frame 1 and is regulated and controlled by a hand switch located on the power compartment. The battery, the hand switch, and the electric heating element 55 are connected in series.

[0026] The metal extrusion spring 54 is horizontally arranged inside the internal control box 51, with one end connected to the internal sliding extrusion block 53 and the other end connected to the outer wall of the conduit inside the external adjustment frame 4.

[0027] People manually press the internal sliding extrusion block 53, and then the internal sliding extrusion block 53 slides along the internal control guide rail 52 for adjustment. The internal control guide rail 52 adopts an inclined layout design. By extruding the metal extrusion spring 54, the conduit installed inside the external adjustment frame 4 is extruded, thereby adjusting the flow rate inside the conduit. The electric heating element 55 is activated by power, thereby controlling the heating of the metal extrusion spring 54, thereby adjusting the temperature of the conduit and the fluid inside the conduit.

[0028] To facilitate position limiting, seven inner limiting grooves 56 are provided on the inner side of the internal control guide rail 52.

[0029] To facilitate control and locking, an external control cover 57 that mates with the inner limiting groove 56 is elastically fitted on the outer surface of the internal sliding compression block 53.

[0030] The external control cover 57 is elastically fitted to the outside of the internal sliding extrusion block 53 by extrusion spring.

[0031] The outer control cover 57 has an external limiting protrusion on its side wall that is integrated with the inner limiting groove 56. When the outer control cover 57 is pressed outward, the external limiting protrusion is inserted into the inner limiting groove 56, thereby limiting and fixing the inner side of the inner control guide rail 52.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A jacketed regulating device applied to a disposable catheter sheath, comprising an external assembly frame (1), characterized in that: The external assembly frame (1) is provided with a turnover closing cover plate (2) on the assembly surface, the external assembly frame (1) and the turnover closing cover plate (2) are provided with internal assembly grooves for mounting a disposable catheter sheath on the assembly surface, the external assembly frame (1) is provided with an external adjusting frame (4) on the side wall through a flexible connecting belt (3), and the external adjusting frame (4) is provided with an external control port for mounting a hand control adjusting module (5) on the side wall.

2. A sheath-based regulating device for use with a disposable catheter sheath according to claim 1, characterized in that: The external assembly frame (1) is provided with an integral external limiting block (6) on the side wall, the turnover closing cover plate (2) is sleeved on the external limiting block (6) through an external limiting frame (7) on the side wall and is clamped and closed with the external assembly frame (1).

3. A sheath-based regulating device for use with a disposable catheter sheath according to claim 1, wherein: The external adjusting frame (4) comprises an external mounting frame (41) connected with the flexible connecting belt (3) and an external limiting frame (42) clamped on the external mounting frame (41).

4. The sheath-based regulating device for use with a disposable catheter sheath of claim 1, wherein: The external control port is formed in the external mounting frame (41), and the hand control adjusting module (5) comprises an internal control box body (51) fixed in the external control port, an internal control guide rail (52) mounted on the inner wall of the internal control box body (51), an internal sliding extrusion block (53) slidably mounted in the internal control guide rail (52), a metal extrusion elastic sheet (54) mounted on the inner side end of the internal sliding extrusion block (53) and an electric heating sheet (55) mounted on the inner wall of the metal extrusion elastic sheet (54).

5. A sheath-based control device for use with a disposable catheter sheath according to claim 4, wherein: A plurality of internal limiting grooves (56) are formed in the inner side surface of the internal control guide rail (52).

6. A sheath-based control device for use with a disposable catheter sheath according to claim 5, wherein: The internal sliding extrusion block (53) is elastically provided with an external control cover (57) matched with the internal limiting grooves (56) on the outer side surface.

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