Hepatic portal occlusion auxiliary device

Abstract

The invention discloses an auxiliary device for hepatic portal occlusion, which belongs to the field of medical instruments and comprises a tube body and an elastic section arranged at one end of the tube body, a plurality of damping bulges are arranged in the middle of the tube body, and a tip is arranged at one end of the tube body symmetrical to the elastic section; a fixing hole is formed in the tail end of the elastic section, an opening is formed in one end of the fixing hole, and an anti-skid layer is fixedly connected to the inner wall face of the fixing hole in an attached mode. In the liver operation process, bleeding can be prevented, and blood flowing into the liver can be blocked. When the auxiliary device is specifically used, in the operation process, medical staff uses the auxiliary device for blocking the porta hepatis to wind around the porta hepatis for a circle and then pressurizes the porta hepatis, and therefore the purpose of blocking blood flow is achieved. And after the operation is finished, the blocking auxiliary device can be easily and quickly removed, so that the operation is finished.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to an auxiliary device for hepatic hilum occlusion. Background Technology

[0002] Clinically, there are many types of hepatic portal occlusion, including hepatic inflow occlusion, total hepatic blood flow occlusion, and hepatic vein occlusion. Hepatic portal occlusion is mainly used in liver surgery, especially in liver surgeries where surgical resection is considered very difficult and intraoperative bleeding is significant. Hepatic portal occlusion allows for clearer observation of intrahepatic anatomical structures, facilitating the management of intrahepatic bile ducts and blood vessels. It not only accelerates the surgical procedure and minimizes intraoperative risks and bleeding, but also reduces the likelihood of postoperative bile leakage and liver failure.

[0003] While portal vein occlusion is highly effective for surgical procedures, it can impair intrahepatic blood perfusion, potentially leading to hepatocyte ischemia-reperfusion injury. This is particularly true for patients with underlying liver disease (chronic hepatitis, cirrhosis); prolonged occlusion significantly increases the risk of postoperative liver failure. Therefore, while a occlusion time of 20-30 minutes is generally considered safe for most patients, for those with cirrhosis, the occlusion time should be minimized. If a single occlusion is insufficient to complete the surgery, staged occlusion at intervals should be considered. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary device for blocking the hepatic portal vein, in order to solve the problem of blood flowing into the liver during liver surgery.

[0005] To achieve the above objectives, the specific plan is as follows:

[0006] A hepatic hilum blocking auxiliary device includes: a tube body and an elastic section disposed at one end of the tube body, a plurality of damping protrusions are provided in the middle of the tube body, and a pointed end is provided on one end of the tube body symmetrical to the elastic section; a fixing hole is provided at the end of the elastic section, one end of the fixing hole is provided with an opening, and an anti-slip layer is attached and fixedly connected to the inner wall surface of the fixing hole.

[0007] Furthermore, the diameter of the opening is smaller than the diameter of the tube body.

[0008] Furthermore, the anti-slip layer has grooves.

[0009] Furthermore, the tube body is made of rubber.

[0010] Furthermore, the damping protrusions are evenly distributed on the outer wall surface of the tube.

[0011] Furthermore, the cross-section of the tube is elliptical or circular.

[0012] Furthermore, the anti-slip layer is made of silicone.

[0013] In summary, the present invention has the following advantages over the prior art:

[0014] This invention can prevent bleeding and block blood flow into the liver during liver surgery.

[0015] In practical use, medical personnel use the hepatic hilum occlusion auxiliary device provided by this invention to circle the hepatic hilum duct once during surgery and then apply pressure to achieve the purpose of blocking blood flow. Furthermore, after the surgery, the occlusion auxiliary device can be easily and quickly released, thus completing the surgery. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the overall structure of the hepatic hilum blocking auxiliary device provided by the present invention;

[0018] Figure 2 A cross-sectional view of the first embodiment of the fixing hole;

[0019] Figure 3 This is a cross-sectional view of a second embodiment of the fixing hole.

[0020] The above figures include the following reference numerals:

[0021] 1. Tube body; 2. Tip; 3. Damping protrusion; 4. Elastic section; 41. Fixing hole; 42. Anti-slip layer; 421. Groove; 43. Opening. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular form may also include the plural form unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0025] See Figures 1 to 3 As shown, the present invention provides a hepatic hilum blocking auxiliary device, comprising: a tube body 1 and an elastic segment 4 disposed at one end of the tube body 1, wherein a plurality of damping protrusions 3 are provided in the middle position of the tube body 1, and a tip 2 is provided at one end of the tube body 1 symmetrical to the elastic segment 4; a fixing hole 41 is provided at the end of the elastic segment 4, and an opening 43 is provided at one end of the fixing hole 41, and an anti-slip layer 42 is attached and fixedly connected to its inner wall surface.

[0026] When medical staff use the hepatic hilum occlusion auxiliary device provided by this invention during surgery, the tip 2 of the tube body 1 is bypassed around the blood vessel to be blocked and enters and is fixed in the fixing hole 41 through the opening 43. When the tube body 1 enters the fixing hole 41, the opening 43 will automatically open under the downward pressure applied by the tube body 1 due to the elasticity of the fixing section; and when the tube body 1 enters the fixing hole 41, the opening 43 will automatically close under the elasticity, allowing the fixing hole 41 to tighten again, so that the damping protrusion 3 on the outer wall of the tube body 1 fits against the anti-slip layer 42 on the inner wall of the fixing hole 41. Then the medical staff adjusts the tightness of the tube body 1 to a suitable state to ensure that the blocking function is not harmed to the patient. The cooperation between the damping protrusion 3 and the anti-slip layer 42 on the inner wall of the fixing hole 41 ensures that the tube body 1 will not fall off during use.

[0027] When the surgery is completed or the hepatic hilum occlusion auxiliary device needs to be removed, the medical staff simply pull the tip 2 upwards, allowing the opening 43 to open under elastic action, so that the tube 1 can come out from the fixing hole 41, thus easily removing the hepatic hilum occlusion auxiliary device.

[0028] As a preferred option, the diameter of the opening 43 is smaller than the diameter of the tube body 1.

[0029] As a preferred embodiment, to further increase the stability of the hepatic hilum blocking auxiliary device, the anti-slip layer 42 is provided with a groove 421. In use, the section of the tube 1 with several damping protrusions 3 is placed on the anti-slip layer 42, and the damping protrusions 3 are inserted into the groove 421, thereby greatly increasing the friction between the two sections and making the invention more stable.

[0030] As a preferred option, the material of tube 1 is rubber.

[0031] As a preferred embodiment, the damping protrusions 3 are evenly distributed on the outer wall surface of the tube body 1.

[0032] As a preferred option, the cross-section of the tube 1 is elliptical or circular.

[0033] As a preferred option, the anti-slip layer 42 is made of silicone.

[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0035] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hepatic hilum occlusion auxiliary device, characterized in that, include: The tube (1) and the elastic section (4) provided at one end of the tube (1) are provided. Several damping protrusions (3) are provided in the middle position of the tube (1). A pointed tip (2) is provided at one end of the tube (1) symmetrical to the elastic section (4). A fixing hole (41) is provided at the end of the elastic section (4). An opening (43) is provided at one end of the fixing hole (41). An anti-slip layer (42) is attached and fixedly connected to the inner wall surface of the fixing hole (41).

2. The hepatic hilum blocking auxiliary device according to claim 1, characterized in that, The diameter of the opening (43) is smaller than the diameter of the tube (1).

3. The hepatic hilum blocking auxiliary device according to claim 1, characterized in that, The anti-slip layer (42) is provided with grooves (421).

4. The hepatic hilum blocking auxiliary device according to claim 1, characterized in that, The tube body (1) is made of rubber.

5. The hepatic hilum blocking auxiliary device according to claim 1, characterized in that, The damping protrusions (3) are evenly distributed on the outer wall surface of the tube (1).

6. The hepatic hilum occlusion auxiliary device according to claim 1, characterized in that, The cross-section of the tube (1) is elliptical or circular.

7. The hepatic hilum occlusion auxiliary device according to claim 1, characterized in that, The anti-slip layer (42) is made of silicone.

Images