Sheath tube

Abstract

The utility model discloses a sheathing canal, and aims to provide a sheathing canal which is used for establishing an operation channel in a urinary surgery operation and assisting medical instruments such as an endoscope to enter a urinary tract and is provided with a plurality of cavities, and the technical scheme is that the sheathing canal comprises a canal body, and the canal body is provided with the cavities for the medical instruments to enter. The pipe body comprises a leading-out port and a leading-in port, the radius of the leading-out port is larger than that of the leading-in port, the radius of the tangent plane of the pipe body is gradually reduced from the leading-out port to the leading-in port, and the pipe body is provided with additional cavity channels, namely an upper cavity channel, a lower cavity channel, an upper cavity channel and a lower cavity channel, one direction of the upper cavity channel is inclined downwards, the other direction of the lower cavity channel is inclined downwards, the lower cavity channel is deviated to the guide inlet, the upper cavity channel and the lower cavity channel are communicated with the cavity channel of the tube body, and the upper cavity channel is provided with a strip-shaped notch communicated with the interior of the upper cavity channel.

Description

Technical Field

[0001] This utility model relates to a sheath, and more specifically, it relates to a sheath with multiple cavities used in urological surgery to establish a surgical channel and assist medical instruments such as endoscopes in entering the urinary tract. Background Technology

[0002] In the field of medical supplies, sheaths are mainly used to provide a passage for surgical materials and instruments. They are typically used to assist endoscopes and surgical instruments in passing through cavities such as the urethra and infusion tubes inside the human body, thereby improving the safety and stability of the treatment process.

[0003] Currently, most sheaths on the market typically have only one cavity. Such sheaths can often only accommodate one type of medical device and have a relatively limited function when in use. They are less effective in some high-risk medical environments and are not very convenient when used in conjunction with other medical devices. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sheath with multiple cavities for establishing a surgical channel in urological surgery, assisting medical instruments such as endoscopes to enter the urinary tract.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sheath tube, comprising a tube body, wherein the tube body is provided with a cavity for medical devices to enter, the tube body includes an inlet and an outlet, wherein the radius of the inlet is larger than that of the outlet, and the cross-sectional radius of the tube body gradually decreases from the inlet to the outlet, the tube body is provided with two additional cavities: an upper cavity that is obliquely upward and deviates from the inlet; and a lower cavity that is obliquely downward and deviates from the inlet, wherein both the upper and lower cavities are connected to the cavities of the tube body, and the upper cavity is provided with a strip-shaped notch that communicates with its interior.

[0006] By adopting the above technical solution, the sheath can be used as a channel for flexible sheaths and other medical devices during urological and other surgical procedures. It enters from the inlet and then exits tightly from the outlet. The upper and lower cavities provide more import options for other auxiliary devices. For example, an internal pressure control device can be connected to the upper cavity, making it a stone removal device for kidney stone surgery. The strip-shaped notch in the upper cavity is used to place the control panel of the relevant device to adjust the internal pressure. The lower cavity can be connected to a pressure measuring device to monitor the internal pressure.

[0007] The present invention is further configured such that: the inlet is provided with a pair of symmetrically arranged buckles, and the inlet is also provided with a pair of L-shaped notches that intersect with the buckles.

[0008] By adopting the above technical solution, the buckle and L-shaped notch are used to reinforce and connect auxiliary equipment to the inlet, such as an adjustable negative pressure connector that can be used to break up stones. The L-shaped notch structure allows the connector to be embedded inside and then rotated for reinforcement, and then the buckle is used to fix the outside of the connector.

[0009] The present invention is further configured such that: a pair of symmetrical convex parts are provided at the upper and lower ends of the outlet, and each convex part is provided with a circular hole.

[0010] By adopting the above technical solution, the outlet is provided with a convex part, and the circular hole provided on the convex part can be used to fix the sheath tube as a whole in a designated position when needed.

[0011] The present invention is further configured such that: several arc-shaped protrusions are distributed on the surface of the tube body and the upper cavity.

[0012] By adopting the above technical solution, the arc-shaped protrusion increases the friction of the contact surface, making it less likely for the tube to slip out of the hand when gripped.

[0013] The present invention is further configured such that a fixed fan-shaped support is provided between the lower cavity and the tube body.

[0014] By adopting the above technical solution, the fan-shaped support is used to support the lower cavity, thereby strengthening the connection between the lower cavity and the tube body. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of the sheath of this utility model;

[0016] Figure 2 This is a right view of an embodiment of the sheath of this utility model;

[0017] The attached diagrams are labeled as follows: 1. Tube body; 2. Outlet; 3. Inlet; 4. Upper cavity; 5. Lower cavity; 6. Strip-shaped notch; 7. Buckle; 8. L-shaped notch; 9. Protrusion; 10. Circular hole; 11. Arc-shaped protrusion; 12. Fan-shaped support. Detailed Implementation

[0018] Reference Figures 1 to 2 The embodiments of the sheath of this utility model are further described below.

[0019] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0020] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0021] A sheath includes a tube body 1, the tube body 1 having a cavity for a medical device to enter, the tube body 1 including an inlet 3 and an outlet 2, wherein the radius of the inlet 3 is larger than that of the outlet 2, and the cross-sectional radius of the tube body 1 gradually decreases from the inlet 3 to the outlet 2, the tube body 1 having two additional cavities: an upper cavity 4 that is obliquely upward and deviates from the inlet 3; and a lower cavity 5 that is obliquely downward and deviates from the inlet 3, both the upper cavity 4 and the lower cavity 5 communicating with the cavity of the tube body 1, the upper cavity 4 having a strip-shaped notch 6 communicating with its interior. By adopting the above technical solution, the sheath can be used as a channel for medical devices such as flexible sheaths during urological and other surgical procedures. It enters from the inlet 3 and then tightly protrudes from the outlet 2. The upper cavity 4 and lower cavity 5 provide more import options for other auxiliary devices. For example, an internal pressure control device can be connected to the upper cavity 4, making it a stone removal device for kidney stone surgery. The strip-shaped notch 6 in the upper cavity 4 is used to place the control panel of the relevant device to adjust the internal pressure. The lower cavity 5 can be connected to a pressure measuring device to monitor the internal pressure.

[0022] Furthermore, the inlet 3 is provided with a pair of symmetrically arranged buckles 7, and the inlet 3 is also provided with a pair of L-shaped notches 8 that intersect with the buckles 7. By adopting the above technical solution, the buckles 7 and L-shaped notches 8 are used to reinforce auxiliary equipment connected to the inlet 3, such as an adjustable negative pressure connector that can be used to break up stones. The L-shaped notch 8 structure allows the connector to be embedded inside and then rotated for reinforcement, and then the buckles 7 are used to fix the outside of the connector.

[0023] Furthermore, the outlet 2 is provided with a pair of symmetrical convex members 9 at its upper and lower ends, and each convex member 9 is provided with a circular hole 10. By adopting the above technical solution, the outlet 2 is provided with convex members 9, and the circular holes 10 provided on the convex members 9 can be used to fix the sheath tube as a whole in a designated position when needed.

[0024] Furthermore, several arc-shaped protrusions 11 are distributed on the surfaces of the tube body 1 and the upper cavity 4. By adopting the above technical solution, the arc-shaped protrusions 11 increase the friction of the contact surface, making it less likely for the tube body 1 to slip out of the hand when gripped by hand.

[0025] Furthermore, a fixed sector-shaped support 12 is provided between the lower cavity 5 and the tube body 1. By adopting the above technical solution, the sector-shaped support 12 is used to support the lower cavity 5, thereby strengthening the connection between the lower cavity 5 and the tube body 1.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sheath comprising a tube body (1), said tube body (1) having a cavity for the entry of a medical device, characterized in that, The sheath includes an outlet (2) and an inlet (3), wherein the radius of the outlet (2) is larger than that of the inlet (3), and the cross-sectional radius of the tube body (1) gradually decreases from the outlet (2) to the inlet (3). The tube body (1) is provided with two additional cavities: An upper cavity (4) that is slanted upward and deviates from the exit (2); A lower cavity (5) that is angled downwards and deviates from the exit (2). Both the upper cavity (4) and the lower cavity (5) are connected to the cavity of the tube body (1), and the upper cavity (4) is provided with a strip-shaped notch (6) that communicates with its interior.

2. The sheath according to claim 1, characterized in that, The inlet (3) is provided with a pair of symmetrically arranged buckles (7), and the outlet (2) is also provided with a pair of L-shaped notches (8) that intersect with the buckles (7).

3. A sheath according to claim 1, characterized in that, The outlet (2) is provided with a pair of symmetrical convex parts (9) at its upper and lower ends, and each of the convex parts (9) is provided with a circular hole (10).

4. A sheath according to claim 1, characterized in that, The tube body (1) and the upper cavity (4) have several arc-shaped protrusions (11) distributed on their surfaces.

5. A sheath according to claim 1, characterized in that, A fixed fan-shaped support (12) is provided between the lower cavity (5) and the tube body (1).

Images