Adjustable bent sheath with rotatable hemostasis joint

Abstract

The utility model relates to the technical field of medical instrument detection, and discloses an adjustable bending sheath with a rotatable hemostasis connector, which comprises a sheath tube, the rear end of the sheath tube is fixedly connected with a bending adjusting handle, the rear end of the bending adjusting handle is fixedly connected with an inner conical connector, the rear end of the inner conical connector is provided with the rotatable hemostasis connector, and the rotatable hemostasis connector is connected with the rotatable hemostasis connector. The rotatable hemostasis connector comprises an outer conical connector, the outer conical connector is in threaded connection with the outer wall of the inner conical connector, a hemostasis valve body is arranged at the rear end of the outer conical connector, the upper end of the hemostasis valve body is connected with a single-cavity pipe, the single-cavity pipe is L-shaped, and the other end of the single-cavity pipe is connected with a three-way switch. The rotatable hemostasis joint can freely rotate relative to the sheath tube, the external conical joint, the sealing ring, the clamping ring and the hemostasis valve body in the rotatable hemostasis joint do not rotate, and when an operator operates the sheath tube to rotate, the side branch can be prevented from being wound with other surgical instruments and cables.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device detection, in particular to an adjustable curved sheath with a rotatable hemostatic joint. Background Art

[0002] Medical sheaths have been widely used in minimally invasive interventional diagnosis and treatment surgeries to establish channels, deliver or retrieve instruments, input drugs or remove body fluids. Among them, the adjustable bending sheath has a distal adjustable bending function, which can quickly and reliably reach the curved target lesion position to reduce the operation time.

[0003] When the traditional sheath is rotated, the side branches will be entangled with other instruments, and the side tube at the end will also rotate together, which will hinder the surgical operation on the one hand, and easily cause the side tube to be entangled and knotted with surgical instruments such as catheters on the other hand. When the side tube needs to be rotated, the sheath will also rotate together, which will change the direction of the sheath head and affect the surgical operation on the one hand.

[0004] In view of the above problems, an adjustable curved sheath with a rotatable hemostatic joint is proposed. Utility Model Content

[0005] The utility model aims to provide an adjustable curved sheath with a rotatable hemostatic joint, which solves the problem of entanglement of side branches with other instruments when the traditional sheath tube is rotated in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable bending sheath with a rotatable hemostatic joint, comprising a sheath tube, a bending adjustment handle being fixedly connected to the rear end of the sheath tube, an inner conical joint being fixedly connected to the rear end of the bending adjustment handle, and a rotatable hemostatic joint being arranged at the rear end of the inner conical joint.

[0007] By adopting the above technical solution, the sheath can be rotated.

[0008] As a further description of the above technical solution: the rotatable hemostatic joint includes an outer conical joint, the outer conical joint is threadedly connected to the outer wall of the inner conical joint, and a hemostatic valve body is arranged at the rear end of the outer conical joint.

[0009] By adopting the above technical solution, the outer conical joint is connected to the inner conical joint.

[0010] As a further description of the above technical solution: the upper end of the hemostatic valve body is connected to a single-lumen tube, and the single-lumen tube is L-shaped.

[0011] By adopting the above technical solution, the single-lumen tube is connected to the hemostatic valve body.

[0012] As a further description of the above technical solution: the other end of the single-lumen tube is connected to a three-way switch, which is called a side branch, and liquid perfusion and suction can be performed through the three-way switch.

[0013] By adopting the above technical solution, the other end of the single-lumen tube is connected to a three-way switch with a Luer connector.

[0014] As a further description of the above technical solution: a sealing ring is arranged inside the hemostatic valve body and the outer conical joint.

[0015] By adopting the above technical solution, sealing is performed through the sealing ring.

[0016] As a further description of the above technical solution: a clamping ring is provided on the hemostatic valve body and the outer wall of the outer conical joint.

[0017] By adopting the above technical solution, it is fixed by a clamping ring.

[0018] As a further description of the above technical solution: a hemostatic valve is arranged inside the rear end of the hemostatic valve body.

[0019] By adopting the above technical solution, control is performed through the hemostatic valve.

[0020] As a further description of the above technical solution: an end cover is provided at the rear end of the hemostatic valve, and the end cover is fixedly connected to the hemostatic valve body.

[0021] By adopting the above technical solution, the hemostatic valve is fixedly controlled through the end cover.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] The utility model provides an adjustable curved sheath with a rotatable hemostatic joint. Firstly, the rotatable hemostatic joint can be freely rotated relative to the sheath tube. The rotatable hemostatic joint prevents the internal outer cone joint, the sealing ring, the clamping ring and the hemostatic valve body from rotating. When the operator rotates the sheath tube, the entanglement of the side branches with other surgical instruments and cables can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall appearance of the adjustable curved sheath with a rotatable hemostatic joint of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the rotatable hemostatic joint of the present invention;

[0026] Figure 3 This is a schematic diagram of the appearance of the rotatable hemostatic joint with an adjustable curved sheath after assembly.

[0027] In the figure: 1. sheath; 2. bending handle; 3. inner conical joint; 4. rotatable hemostatic joint; 5. outer conical joint; 6. sealing ring; 7. clamping ring; 8. hemostatic valve body; 9. hemostatic valve; 10. end cover; 11. single lumen tube; 12. three-way switch. DETAILED DESCRIPTION

[0028] The following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In order to further understand the content of the utility model, the utility model is described in detail with reference to the accompanying drawings.

[0030] Reference Figure 1 The utility model discloses an adjustable bending sheath with a rotatable hemostatic joint, comprising a sheath tube 1, the sheath tube 1 having a braided layer for improving supporting characteristics, and a device for fixing a traction wire, a bending handle 2 is fixedly connected to the rear end of the sheath tube 1, and the distal end of the sheath tube 1 can be controlled by the bending handle 2 to achieve bending of different angles, an inner conical joint 3 is fixedly connected to the rear end of the bending handle 2, a rotatable hemostatic joint 4 is designed to be separated from the sheath tube 1, and can be connected to the outer conical joint 5 through the inner conical joint 3 and fastened by threads, and a rotatable hemostatic joint 4 is arranged at the rear end of the inner conical joint 3 to avoid entanglement of the side branch with other surgical instruments and cables.

[0031] Reference Figure 2 and Figure 3 The rotatable hemostatic joint 4 includes an outer conical joint 5, which is threadedly connected to the outer wall of the inner conical joint 3 to connect the outer conical joint 5 with the inner conical joint 3. A hemostatic valve body 8 is arranged at the rear end of the outer conical joint 5. A single-lumen tube 11 is connected to the upper end of the hemostatic valve body 8. The single-lumen tube 11 is L-shaped. The other end of the single-lumen tube 11 is connected to a three-way switch 12. The three-way switch 12 is called a side branch. Liquid perfusion and suction can be performed through the three-way switch 12. A sealing ring 6 is arranged inside the hemostatic valve body 8 and the outer conical joint 5, and the sealing is performed by the sealing ring 6. A clamping ring 7 is arranged on the outer wall of the hemostatic valve body 8 and the outer conical joint 5. The hemostatic valve body 8 is connected to the outer conical joint 5 by the clamping ring 7. A hemostatic valve 9 is arranged inside the rear end of the hemostatic valve body 8. An end cover 10 is arranged at the rear end of the hemostatic valve 9, and the end cover 10 is fixedly connected to the hemostatic valve body 8.

[0032] Working principle: The sheath 1 has a braided layer for improving the supporting characteristics, and a device for fixing the traction wire. The distal end of the sheath 1 can be controlled by the bending handle 2 to achieve bending at different angles. The rotatable hemostatic joint 4 is located at the proximal end of the sheath 1 and is sealed with the sheath 1. The rotatable hemostatic joint 4 can rotate freely around the center of the sheath 1. The rotatable hemostatic joint 4 can rotate freely relative to the sheath 1. The rotatable hemostatic joint 4 prevents the internal outer conical joint 5, sealing ring 6, clamping ring 7 and hemostatic valve body 8 from rotating. When the operator operates the sheath 1 to rotate, the entanglement of side branches with other surgical instruments and cables can be avoided. The direction of the three-way switch 12 is not affected by the rotation of the sheath 1, which is more convenient when performing liquid infusion and suction operations.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable curved sheath with a rotatable hemostatic joint, comprising a sheath tube (1), characterized in that: The rear end of the sheath tube (1) is fixedly connected to a bending adjustment handle (2), the rear end of the bending adjustment handle (2) is fixedly connected to an inner conical joint (3), the rear end of the inner conical joint (3) is provided with a rotatable hemostatic joint (4), the rotatable hemostatic joint (4) comprises an outer conical joint (5), the outer conical joint (5) is threadedly connected to the outer wall of the inner conical joint (3), and the rear end of the outer conical joint (5) is provided with a hemostatic valve body (8).

2. The adjustable curved sheath with a rotatable hemostatic joint according to claim 1, characterized in that: The upper end of the hemostatic valve body (8) is connected to a single-lumen tube (11), and the single-lumen tube (11) is L-shaped.

3. The adjustable curved sheath with a rotatable hemostatic joint according to claim 2, characterized in that: The other end of the single-lumen tube (11) is connected to a three-way switch (12), which is called a side branch. Liquid perfusion and suction can be performed through the three-way switch (12).

4. The adjustable curved sheath with a rotatable hemostatic joint according to claim 1, characterized in that: A sealing ring (6) is provided inside the hemostatic valve body (8) and the outer conical joint (5).

5. The adjustable curved sheath with a rotatable hemostatic joint according to claim 1, characterized in that: The hemostatic valve body (8) and the outer wall of the outer conical joint (5) are provided with a clamping ring (7).

6. The adjustable curved sheath with a rotatable hemostatic joint according to claim 1, characterized in that: A hemostatic valve (9) is arranged inside the rear end of the hemostatic valve body (8).

7. The adjustable curved sheath with a rotatable hemostatic joint according to claim 6, characterized in that: The rear end of the hemostatic valve (9) is provided with an end cover (10), and the end cover (10) is fixedly connected to the hemostatic valve body (8).

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