Mountain turning type blood vessel sheath

Abstract

The utility model discloses a mountain-turning type blood vessel sheath which comprises an outer sheath assembly and an expansion tube assembly, the outer sheath assembly comprises an outer sheath body and an outer sheath base, the expansion tube assembly comprises an expansion tube body and an expansion tube base, the tail end of the outer sheath body is connected with the outer sheath base, and the tail end of the expansion tube body is connected with the expansion tube base. The tail end of the dilation tube body is connected with the dilation tube seat, the outer sheath seat is hollow, the outer sheath tube body is communicated with the inner portion of the outer sheath seat, and the head end of the outer sheath tube body and the head end of the dilation tube body are both J-shaped. The mountain turning type blood vessel sheath comprises the expansion tube assembly and the outer sheath assembly, when the mountain turning type blood vessel sheath is used clinically, the expansion tube body needs to be coaxially inserted into the outer sheath body, and the head end of the outer sheath body and the head end of the expansion tube body are both J-shaped. By means of the structure, in the clinical use process of the product, after femoral artery puncture is conducted on one side of the thigh, the mountain turning operation of the main iliac artery can be completed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a mountain-turning vascular sheath. Background Art

[0002] The catheters, stents, guidewires, electrodes and other instruments used in minimally invasive interventional treatments enter the target location through blood vessels from outside the body. Before all instruments enter the blood vessels, they must first establish a smooth and effective channel between the outside world and under the human skin. The vascular sheath is the key instrument used to establish this channel.

[0003] In interventional surgeries, such as lower limb endovascular interventional surgeries, existing vascular sheaths are often difficult to operate to reach the target position to guide other instruments to complete the interventional surgery because there is no device to support it. Utility Model Content

[0004] Therefore, one purpose of the present invention is to provide a mountain-turning vascular sheath to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mountain-turning vascular sheath comprises an outer sheath component and an expansion tube component, wherein the outer sheath component comprises an outer sheath tube body and an outer sheath seat, and the expansion tube component comprises an expansion tube body and an expansion tube seat, wherein the tail end of the outer sheath tube body is connected to the outer sheath seat, and the tail end of the expansion tube body is connected to the expansion tube seat, the interior of the outer sheath seat is hollow, the outer sheath tube body and the interior of the outer sheath seat are interconnected, and the head end of the outer sheath tube body and the head end of the expansion tube body are both J-shaped.

[0007] Furthermore, the vascular sheath also includes a perfusion component, which includes an extension tube and a three-way valve, one end of the extension tube is connected to the side of the outer sheath seat, and the other end of the extension tube is connected to one end of the three-way valve.

[0008] Furthermore, one end of the extension tube connected to the outer sheath seat is inserted into the inner part of the outer sheath seat, and the extension tube is connected to the outer sheath tube body through the outer sheath seat.

[0009] Furthermore, the outer sheath tube body is composed of a polymer layer, an intermediate layer and an inner coating layer from the outside to the inside.

[0010] Furthermore, the size of the outer sheath seat is smaller than the size of the expansion tube seat, and the outer sheath seat can be placed inside the expansion tube seat.

[0011] Furthermore, the outer sheath seat includes an infusion connection part and an outer sheath tube connection part, the side of the infusion connection part is connected to one end of the extension tube, one end of the sheath tube connection part is connected to the tail end of the outer sheath tube body, and the other end of the sheath tube connection part is connected to the infusion connection part.

[0012] Therefore, the utility model has the following beneficial effects:

[0013] The utility model provides a mountain-turning type vascular sheath comprising an expansion tube assembly and an outer sheath assembly. When used clinically, the expansion tube body needs to be coaxially inserted into the outer sheath tube body. Since the head end of the outer sheath tube body and the head end of the expansion tube body are both J-shaped, such a structure enables the product to complete the mountain-turning operation of the aorta-iliac artery after puncturing the femoral artery on one side of the thigh during clinical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 It is a schematic diagram of the structure of the outer sheath component and the perfusion component of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the expansion tube assembly of the utility model;

[0017] Figure 3 A schematic structural diagram of an outer sheath seat of the utility model.

[0018] In the figure: 1. outer sheath tube body; 2. outer sheath seat; 3. expansion tube body; 4. expansion tube seat; 5. tail end of outer sheath tube body; 6. head end of outer sheath tube body; 7. tail end of expansion tube body; 8. head end of expansion tube body; 9. extension tube; 10. three-way valve; 11. perfusion connection; 12. outer sheath tube connection; 13. fixing ring. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figure 1 and Figure 2 As shown, a mountain-turning type vascular sheath includes an outer sheath component and an expansion tube component, the outer sheath component includes an outer sheath tube body 1 and an outer sheath seat 2, the expansion tube component includes an expansion tube body 3 and an expansion tube seat 4, the tail end 5 of the outer sheath tube body is connected to the outer sheath seat 2, the tail end 7 of the expansion tube body is connected to the expansion tube seat 4, the interior of the outer sheath seat 2 is hollow, the outer sheath tube body 1 and the interior of the outer sheath seat 2 are interconnected, and the head end 6 of the outer sheath tube body and the head end 8 of the expansion tube body are both J-shaped.

[0022] The utility model provides a mountain-turning type vascular sheath comprising an expansion tube assembly and an outer sheath assembly. During clinical use, the expansion tube body 3 needs to be coaxially inserted into the outer sheath tube body 1. Since the head end of the outer sheath tube body 1 and the head end of the expansion tube body 3 are both J-shaped, such a structure enables the product to complete the mountain-turning operation of the aortoiliac artery after puncturing the femoral artery on one side of the thigh during clinical use.

[0023] like Figure 1 As shown, the vascular sheath also includes a perfusion component, which includes an extension tube 9 and a three-way valve 10 , one end of the extension tube 9 is connected to the side of the outer sheath seat 2 , and the other end of the extension tube 9 is connected to one end of the three-way valve 10 .

[0024] In the existing vascular sheath, after the medical device is inserted into the outer sheath, some residual gas may remain in the outer sheath, but the existing vascular sheath does not have a reserved channel for discharging the gas. If the residual gas enters the blood, it is easy to cause thrombosis.

[0025] The vascular sheath of the utility model is connected to an extension tube 9 and a three-way valve 10 on the side of the outer sheath seat 2. After the medical device is inserted into the outer sheath, heparinized saline can be injected through the three-way valve 10 and the extension tube 9 to rinse the inner side of the outer sheath tube body, and the residual gas in the outer sheath can be extracted, thereby reducing the risk of thrombosis in patients. When the perfusion component is not in use, the three-way valve 10 is closed to prevent blood from flowing out of the human body or gas from entering the human body.

[0026] Specifically, one end of the extension tube 9 connected to the outer sheath seat 2 is inserted into the inner part of the outer sheath seat 2 , and the extension tube 9 is connected to the outer sheath tube body 1 through the outer sheath seat 2 .

[0027] As an embodiment, the outer sheath tube body 1 is composed of a polymer layer, an intermediate layer and an inner coating layer from the outside to the inside.

[0028] Specifically, the polymer layer is a polymer material, and the polymer material can be one of the following materials: polyamide, polylactic acid, polypropylene, polyethylene, aramid, Kevlar fiber, polypropylene mesh nitrile fiber, polycaprolactone, polyglycolide or polyetheretherketone.

[0029] Specifically, the middle layer may be made of 8 strands of 0.001×0.002in flat wire and 8 strands of 0.002in round wire, which are woven in an up-and-down manner with mixed equal density.

[0030] Specifically, the inner coating is an antibacterial coating, which is obtained by coating and curing the antibacterial sol by using a dip-pull method, and the antibacterial sol contains nano-titanium dioxide silver exchanger and monorhamnolipid.

[0031] As an implementation manner, the size of the outer sheath seat 2 is smaller than the size of the expansion tube seat 4 , and the outer sheath seat 2 can be placed inside the expansion tube seat 4 .

[0032] In one embodiment, the outer sheath seat 2 is cylindrical as a whole, the interior of the outer sheath seat 2 is hollow, the expansion tube seat 4 is also cylindrical as a whole, and the inner diameter of the outer sheath seat 2 is larger than the outer diameter of the expansion tube seat 4, so that the outer sheath seat 2 can be placed inside the expansion tube seat 4.

[0033] like Figure 3 As shown, the outer sheath seat 2 includes an infusion connection part 11 and an outer sheath tube connection part 12, the side of the infusion connection part 11 is connected to one end of the extension tube 9, one end of the sheath tube connection part is connected to the tail end of the outer sheath tube body 1, and the other end of the sheath tube connection part is connected to the infusion connection part 11.

[0034] like Figure 3 As shown, a fixing ring 13 is further provided on one side of the outer sheath seat 2 , and the outer sheath seat 2 can be suspended or fixed by the fixing ring 13 .

[0035] As an implementation mode, the inner surface of the fixing ring 13 is provided with an internal thread, which can be connected and fixed with a bolt or a screw with an external thread.

[0036] The mountain-turning vascular sheath of the utility model is composed of two parts, the expansion tube and the sheath tube. When used clinically, the expansion tube needs to be coaxially inserted into the sheath tube body. The sheath tube body is composed of an outer polymer layer, a middle braided layer, and an inner coating structure. The head end of the tube body is J-shaped. Such a structure enables the product to complete the mountain-turning operation of the aortoiliac artery after puncturing the femoral artery on one side of the thigh during clinical use.

[0037] The outer sheath tube body of the utility model has a novel structure, which can save doctors' operation time during surgery, reduce the difficulty of treating lower limb lesions, and assist other instruments to better reach the target position.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] It is not difficult for those skilled in the art to understand that the utility model includes any combination of the utility model content and the specific implementation method part of the above specification and the various parts shown in the drawings. Due to the limited space and to make the specification concise, the various schemes composed of these combinations are not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0040] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mountain-turning vascular sheath, comprising an outer sheath component and an expansion tube component, characterized in that: The outer sheath assembly includes an outer sheath tube body and an outer sheath seat, and the expansion tube assembly includes an expansion tube body and an expansion tube seat. The tail end of the outer sheath tube body is connected to the outer sheath seat, and the tail end of the expansion tube body is connected to the expansion tube seat. The interior of the outer sheath seat is hollow, and the outer sheath tube body and the interior of the outer sheath seat are interconnected. The head end of the outer sheath tube body and the head end of the expansion tube body are both J-shaped.

2. The mountain-turning vascular sheath according to claim 1, characterized in that: The vascular sheath also includes a perfusion component, which includes an extension tube and a three-way valve, one end of the extension tube is connected to the side of the outer sheath seat, and the other end of the extension tube is connected to one end of the three-way valve.

3. The mountain-turning vascular sheath according to claim 2, characterized in that: One end of the extension tube connected to the outer sheath seat is inserted into the inner part of the outer sheath seat, and the extension tube is connected to the outer sheath tube body through the outer sheath seat.

4. A mountain-turning vascular sheath according to claim 1, 2 or 3, characterized in that: The outer sheath tube body is composed of a polymer layer, an intermediate layer and an inner coating layer from the outside to the inside.

5. The mountain-turning vascular sheath according to claim 1, characterized in that: The size of the outer sheath seat is smaller than that of the expansion tube seat, and the outer sheath seat can be placed inside the expansion tube seat.

6. A mountain-turning vascular sheath according to claim 2 or 3, characterized in that: The outer sheath seat includes an infusion connection part and an outer sheath tube connection part. The side of the infusion connection part is connected to one end of the extension tube, one end of the sheath tube connection part is connected to the tail end of the outer sheath tube body, and the other end of the sheath tube connection part is connected to the infusion connection part.

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