Novel porta hepatis blocking device

Abstract

The utility model discloses a novel hepatic portal blocking device which comprises a silica gel hose, a shell and a pressing assembly, the pressing assembly is arranged in the shell, the shell and the pressing assembly are coaxial, the shell and the pressing assembly are connected through a spring, the pressing assembly can move up and down in the shell, the silica gel hose penetrates through the shell and the pressing assembly, and the silica gel hose penetrates through the shell and the pressing assembly. The spring enables the shell and the pressing assembly to clamp the silica gel hose, and the silica gel hose is filled with liquid. The silica gel hose is extruded through the shell and the pressing assembly, the shell and the pressing assembly are moved, the sterile liquid is extruded to move forwards, so that the silica gel hose expands and extrudes the hepatic portal, the structure is simple and ingenious, operation of medical staff is facilitated, exposure of the visual field under an endoscope is not affected, the device can be used for open surgery and laparoscopic surgery, operation is easy, and safety and effectiveness are achieved. And the requirement of blocking blood flow in a liver operation can be met.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a novel hepatic portal blocking device. Background Art

[0002] The liver is a blood-rich organ. About 1000 ml of blood passes through the liver of an adult every minute, and it has the characteristics of high flow and fast speed. Before the hepatobiliary surgery operates on the liver during surgery, in order to reduce the amount of bleeding, it is necessary to block the liver portal. The conventional method of blocking the liver portal during liver surgery is the Pringle method. At present, in laparoscopic-assisted liver cancer resection, doctors use blocking instruments to select different items according to the location of the tumor, such as puncture, cotton rope, disposable suction head, and silk thread. This set of instruments is used for more complicated liver cancer resections. There are many items, the process is cumbersome, and a small incision needs to be added to the original one. In open surgery, there are currently two sets of devices, latex tubes and liver cords. The yellow rubber tube is simple to prepare, but it is more troublesome to loosen the blockage. Two people must cooperate, and it is not suitable for patients with abdominal adhesions, which is time-consuming and laborious. In addition, the steps for making liver cords are cumbersome, and the toothed vascular clamps used for blocking will affect the surgical field and hinder the operation of the main surgeon. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a novel portal hypertension blocking device, comprising a silicone hose, a shell and a pressing assembly, wherein the pressing assembly is arranged inside the shell, the shell and the pressing assembly are coaxial, the shell and the pressing assembly are connected by a spring, the silicone hose passes through the shell and the pressing assembly, the shell and the pressing assembly clamp the silicone hose, and liquid is sealed inside the silicone hose.

[0004] Furthermore, the shell is in the shape of a cylinder with a closed bottom, a limiting column is arranged at the center of the bottom surface of the shell, and the height of the limiting column is lower than the height of the side wall of the shell.

[0005] Furthermore, the circumferential surface of the shell is provided with four openings, and the four openings are adjacent to each other and divided into two groups: a first group of openings and a second group of openings, and the first group of openings and the second group of openings are symmetrical about the limiting column.

[0006] Furthermore, first rollers are disposed at the upper ends of the two openings of the first group of openings. The first rollers are rotatably connected to the housing, and the length of the first rollers is smaller than the length of the upper ends of the openings.

[0007] Furthermore, the pressing assembly includes a connecting column, the upper and lower ends of which are respectively connected to the upper plate and the lower plate, the connecting column is hollow inside and open at the lower end, the lower end of the lower plate connecting column passes through the lower plate, two second rollers are provided on the periphery of the lower plate, the second rollers are rotatably connected to the lower plate, and the upper plate and the lower plate have the same diameter.

[0008] Furthermore, a spring is arranged inside the connecting column, one end of the spring is connected to the lower surface of the upper plate, and the other end passes through the lower plate and is sleeved on the limiting column of the shell, and the limiting column is coaxial with the spring.

[0009] Furthermore, the pressing assembly includes two pressing positions: a silicone hose squeezing position and a silicone hose detaching position. When in the silicone hose squeezing position, the lower plate is located at the lower part of the shell, and the first roller and the second roller squeeze the silicone hose; when in the silicone hose detaching position, the lower plate abuts against the bottom of the shell, and the first roller and the second roller detach from the silicone hose.

[0010] Furthermore, the inner diameter of the shell is larger than the diameter of the lower plate of the pressing assembly, and the two second rollers are respectively located at the lower ends of the two openings of the first group of openings.

[0011] Furthermore, both ends of the silicone hose are closed and the interior is filled with sterile liquid.

[0012] Furthermore, one end of the silicone hose passes through the first group of openings and the second group of openings on the same side of the limiting column, and the other end passes through the first group of openings and the second group of openings on the other side of the limiting column.

[0013] The beneficial effects of the embodiments of the present utility model are as follows:

[0014] The novel portal hepatis blocking device of the utility model extrude the silicone hose through a shell and a pressing component. The shell and the pressing component move relative to the silicone hose, extrude the sterile liquid to move toward the middle of the silicone hose so that the silicone hose expands and extrudes the portal hepatis, thereby blocking the portal blood flow. When it is necessary to stop blocking, the pressing component is pressed downward to a position detached from the silicone hose, the silicone hose shrinks back to its original state, and the two ends of the silicone hose are pulled back so that the silicone hose does not squeeze the portal hepatis, thereby stopping blocking. The structure is simple and ingenious, convenient for medical staff to operate and does not affect the exposure of the field of view under the laparoscope. It can be used for both open surgery and laparoscopic surgery. It is simple to operate, safe and effective, and can meet the needs of blocking blood flow in liver surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the new portal obstruction device.

[0016] Figure 2 It is a schematic diagram of the structure of the shell.

[0017] Figure 3 It is a structural diagram of the pressing component.

[0018] Figure 4 is a cross-sectional view of the press assembly.

[0019] Figure 5 It is a cross-sectional view of the novel portal occlusion device.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the back of the new portal obstruction device.

[0021] Reference numerals: 1. Silicone hose;

[0022] 2. Shell: 21. Limiting column, 22. Opening, 2201. First group of openings, 2202. Second group of openings, 23. First roller;

[0023] 3. Pressing assembly: 31. Connecting column, 32. Upper plate, 33. Lower plate, 34. Second roller;

[0024] 4. Spring. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0026] The utility model provides a novel hepatic portal blocking device, comprising a silicone hose 1, a housing 2 and a pressing component 3, see Figure 1 A pressing component 3 is arranged inside the shell 2. The shell 2 is coaxial with the pressing component 3. The shell 2 and the pressing component 3 are connected by a spring 4. The pressing component 3 can move up and down in the shell 2. The silicone hose 1 runs through the shell 2 and the pressing component 3. The spring 4 enables the shell 2 and the pressing component 3 to clamp the silicone hose 1.

[0027] The silicone hose 1 is closed at both ends and filled with sterile liquid. The silicone hose 1 is elastic. When the internal space of the silicone hose 1 becomes smaller due to compression, the sterile liquid inside the silicone hose 1 will cause the silicone hose 1 to deform.

[0028] See also Figure 1 , Figure 2 and Figure 6 The shell 2 is a cylindrical shape with a closed bottom. A limiting column 21 is vertically arranged at the center of the bottom surface of the shell 2. The limiting column 21 is fixedly connected to the bottom surface. The height of the limiting column 21 is lower than the height of the side wall of the shell 2. Four openings 22 are arranged on the circumference of the shell 2. The four openings 22 are adjacent to each other and are divided into two groups: a first group of openings 2201 and a second group of openings 2202. The first group of openings 2201 and the second group of openings 2202 are symmetrical about the limiting column 21. The openings 22 are used to pass the silicone hose 1. The upper ends of the two openings 22 of the first group of openings 2201 are both provided with a first roller 23. The first roller 23 is rotatably connected to the shell 2. The length of the first roller 23 is less than the length of the upper end of the opening 22. The first roller 23 is used to squeeze the silicone hose 1.

[0029] See also Figure 3The pressing assembly 3 includes a connecting column 31, the upper and lower ends of the connecting column 31 are respectively connected to the upper plate 32 and the lower plate 33, the connecting column 31 is hollow inside and open at the lower end, the lower end of the connecting column 31 passes through the lower plate 33, and two second rollers 34 are provided on the periphery of the lower plate 33. The second rollers 34 are rotatably connected to the lower plate 33, and the second rollers 34 are used to squeeze the silicone hose 1.

[0030] See also Figure 4 A spring 4 is arranged inside the connecting column 31, one end of the spring 4 is connected to the lower surface of the upper plate 32, and the other end passes through the lower plate 33 and is sleeved on the limiting column 21 of the housing 2, and the limiting column 21 is coaxial with the spring 4, and the silicone hose 1 passes through the housing 2 and the pressing component 3. When the spring 4 is in a compressed state, the spring 4 causes the housing 2 and the pressing component 3 to clamp the silicone hose 1.

[0031] The pressing assembly 3 includes two pressing positions: a position for squeezing the silicone hose 1 and a position for detaching from the silicone hose 1. When in the position for squeezing the silicone hose 1, the lower plate 33 is located at the lower part of the shell 2, and the silicone hose 1 is pulled, and the first roller 23 and the second roller 34 squeeze the silicone hose 1, which can cause the silicone hose 1 to deform and expand; when in the position for detaching from the silicone hose 1, the lower plate 33 abuts against the bottom of the shell 2, and the first roller 23 and the second roller 34 detach from the silicone hose 1, and the silicone hose 1 is pulled, but the silicone hose 1 does not deform or expand.

[0032] See also Figure 5 The inner diameter of the housing 2 is larger than the diameter of the lower plate 33 of the pressing assembly 3. The pressing assembly 3 is sleeved inside the housing 2. The two second rollers 34 are respectively located at the lower ends of the two openings 22 of the first group of openings 2201. The silicone hose 1 is located between the first roller 23 and the second roller 34. When the pressing assembly 3 is pressed downward, the spring 4 is in a compressed state, the first roller 23 and the second roller 34 squeeze the silicone hose 1, and the silicone hose 1 is pulled to force the sterile liquid to move to the middle of the silicone hose 1. The silicone hose 1 is deformed and expanded to squeeze the liver hilum.

[0033] Working process: first, one end of the silicone hose 1 is passed through the first group of openings 2201 and the second group of openings 2202 on the same side of the limiting column 21 in sequence, and the other end of the silicone hose 1 is wrapped around the liver hilum, and then passed through the first group of openings 2201 and the second group of openings 2202 on the other side of the limiting column 21. One hand presses the upper plate 32 of the pressing component 3 to move the pressing component 3 downward to the position where the silicone hose 1 can move and the first roller 23 and the second roller 34 squeeze the silicone hose 1, that is, the position where the silicone hose 1 is squeezed. The other hand pinches the second group of openings The two ends of the silicone hose 1 of 2202 are pulled outward, so that the shell 2 and the pressing component 3 move relative to the silicone hose 1. In this process, the first roller 23 and the second roller 34 squeeze the sterile liquid in the silicone hose 1 and move it toward the middle of the silicone hose 1. The silicone hose 1 expands and squeezes the portal of the liver to block the blood flow at the portal of the liver, and then the pressing component 3 is released; when it is necessary to stop the blocking, the pressing component 3 is pressed downward to the position of separation from the silicone hose 1, and the silicone hose 1 shrinks back to its original state, and the two ends of the silicone hose 1 are pulled back, and the silicone hose 1 does not squeeze the portal of the liver, and the blocking stops.

[0034] In the description of the present invention, it should be understood that the terms "length", "upper", "lower", "front", "back", "bottom", "inside", etc., indicating orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being “on” or “under” a second feature may mean that the first and second features are in direct contact with each other, or the first and second features are in indirect contact with each other through an intermediate medium.

[0038] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A novel hepatic portal blocking device, characterized in that: include: A silicone hose, a shell and a pressing component, wherein the pressing component is arranged inside the shell, the shell and the pressing component are coaxial, the shell and the pressing component are connected by a spring, the silicone hose passes through the shell and the pressing component, the shell and the pressing component clamp the silicone hose, and liquid is sealed inside the silicone hose.

2. The novel hepatic portal blocking device according to claim 1, characterized in that: The shell is in the shape of a cylinder with a closed bottom. A limiting column is arranged at the center of the bottom surface of the shell, and the height of the limiting column is lower than the height of the side wall of the shell.

3. The novel hepatic portal blocking device according to claim 2, characterized in that: The circumferential surface of the shell is provided with four openings, the four openings are adjacent to each other and are divided into two groups: a first group of openings and a second group of openings, and the first group of openings and the second group of openings are symmetrical about the limiting column.

4. The novel hepatic portal blocking device according to claim 3, characterized in that: First rollers are disposed at the upper ends of the two openings of the first group of openings. The first rollers are rotatably connected to the housing, and the length of the first rollers is smaller than the length of the upper ends of the openings.

5. The novel hepatic portal blocking device according to claim 4, characterized in that: The pressing assembly includes a connecting column, the upper and lower ends of which are respectively connected to the upper plate and the lower plate. The connecting column is hollow inside and open at the lower end. The lower end of the connecting column passes through the lower plate. Two second rollers are provided on the circumference of the lower plate. The second rollers are rotatably connected to the lower plate. The upper plate and the lower plate have the same diameter.

6. The novel hepatic portal blocking device according to claim 5, characterized in that: A spring is arranged inside the connecting column, one end of the spring is connected to the lower surface of the upper plate, and the other end passes through the lower plate and is sleeved on the limiting column of the shell, and the limiting column is coaxial with the spring.

7. The novel hepatic portal blocking device according to claim 6, characterized in that: The pressing assembly includes two pressing positions: a silicone hose squeezing position and a silicone hose detaching position. When in the silicone hose squeezing position, the lower plate is located at the lower part of the shell, and the first roller and the second roller squeeze the silicone hose; when in the silicone hose detaching position, the lower plate abuts against the bottom of the shell, and the first roller and the second roller detach from the silicone hose.

8. The novel hepatic portal blocking device according to claim 7, characterized in that: The inner diameter of the shell is larger than the diameter of the lower plate of the pressing assembly, and the two second rollers are respectively located at the lower ends of the two openings of the first group of openings.

9. The novel hepatic portal blocking device according to claim 1, characterized in that: The two ends of the silicone hose are closed and the inside is filled with sterile liquid.

10. The novel hepatic portal blocking device according to claim 1, characterized in that: One end of the silicone hose passes through the first group of openings and the second group of openings on the same side of the limiting column, and the other end passes through the first group of openings and the second group of openings on the other side of the limiting column.

Images