A hepatic portal blocking device

Abstract

The utility model discloses a hepatic portal blocking device, including a positioning seat, a housing fixedly mounted on the upper end of the positioning seat, a winding drum arranged inside the housing, the winding drum being elastically connected to the positioning seat by a clockwork spring, a partition fixedly mounted in the middle of the winding drum, a first pull rope and a second pull rope respectively wound around the upper and lower ends of the winding drum, the other ends of the first pull rope and the second pull rope both passing through the housing and the positioning seat and being fixedly connected to a blocking tube. The utility model tightens the blocking tube by the first pull rope and the second pull rope, thereby realizing the blocking of the hepatic portal by the blocking tube, and the limiting mechanism ensures the stable blocking of the blocking tube, and can adjust the expansion degree of the compression bag, control the pressure of the blocking, and achieve a better blocking effect.

Description

Technical Field

[0001] The utility model relates to the technical field of blocking hemostasis equipment, in particular to a liver portal blocking device. Background Art

[0002] The existing patent application number is: "CN202022832444.5" A portal obstruction device; including a positioning seat, a blocking piece and a clamping piece. A first sliding hole and a second sliding hole are provided on the top of the positioning seat, the first sliding hole and the second sliding hole are both close to the edge of the positioning seat, and the first sliding hole and the second sliding hole are symmetrically arranged along the central axis of the length direction of the positioning seat; the blocking piece includes a blocking tube, the blocking tube is flexible, one end of the blocking tube is slidably inserted into the first sliding hole, and the blocking tube can fit around the first portal obstruction and can extend from the second sliding hole; the bottom of the clamping piece is fixedly installed on the positioning seat, and the clamping piece can loosen or clamp the tube body of the blocking tube located at the first sliding hole and the second sliding hole. The purpose of this utility model is to solve the problem that the existing portal obstruction blocking device has slow blocking efficiency during blocking, resulting in time-consuming and labor-intensive operation;

[0003] In the above patent, the fixing bag is expanded and the blocking tube is clamped by injecting physiological saline. The fixing effect of this method needs to be improved, and loosening is prone to occur. At the same time, the injection of physiological saline is inconvenient, which increases the difficulty of blocking. In addition, the compression pressure on the portal tissue cannot be adjusted, resulting in excessive tightness or looseness, and poor blocking effect. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a hepatic portal blocking device, which tightens the blocking tube by a first pull rope and a second pull rope, thereby realizing the blocking of the blood at the hepatic portal by the blocking tube, and the limiting mechanism ensures the stable blocking of the blocking tube, and can adjust the expansion degree of the compression bag, control the blocking pressure, and achieve a better blocking effect.

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

[0006] A liver portal blocking device comprises a positioning seat, a shell is fixedly installed on the upper end of the positioning seat, a winding drum is arranged inside the shell, the winding drum and the positioning seat are elastically connected by a clockwork spring, a partition is fixedly installed in the middle of the winding drum, a first pull rope and a second pull rope are respectively wound around the upper and lower ends of the winding drum, the other ends of the first pull rope and the second pull rope both penetrate the shell and the positioning seat and are fixedly connected to a blocking tube;

[0007] A limiting mechanism for limiting the reverse rotation of the winding drum is arranged inside the shell.

[0008] Preferably, it also includes a compression bag fixedly mounted on the lower end surface of the positioning seat, an air intake pipe is fixedly mounted on the upper end of the compression bag, and the upper end of the air intake pipe passes through the positioning seat.

[0009] Preferably, the limiting mechanism includes a ratchet rotatably connected to the top of the shell, the ratchet is coaxially fixed with the winding drum, the upper end of the shell is rotatably connected to a knob coaxial with the winding drum, a limiting rod for limiting the ratchet is penetrated through the side wall of the shell, the limiting rod is slidably connected to the shell, a baffle is fixedly installed on one end of the limiting rod, and the baffle and the shell are elastically connected by a spring.

[0010] Preferably, a plurality of anti-slip protrusions are arranged at equal intervals on the side of the knob.

[0011] Preferably, two through holes are symmetrically arranged on the positioning seat, and the first pull rope and the second pull rope are respectively located in the two through holes.

[0012] Preferably, the shell is a hollow cylindrical structure with a roof on the top.

[0013] The utility model has the following beneficial effects:

[0014] 1. Through the design of the reel, the first pull rope, the second pull rope, and the blocking tube, the first pull rope and the second pull rope are reeled up, so that the blocking tube fits around the liver portal and is tightened, thereby blocking the blood flow to the liver portal;

[0015] 2. Through the design of the air inlet pipe and the compression bag, the air is inflated into the compression bag through the air inlet pipe to make it expand. The expanded compression bag can further squeeze the liver portal, thereby enhancing the blocking effect on the blood in the liver portal. The expansion degree of the compression bag can also be adjusted to control the blocking pressure to achieve a better blocking effect;

[0016] 3. Through the design of the limiting mechanism, the limiting rod limits the ratchet and only allows one-way rotation to prevent the reel from resetting in the opposite direction, thus ensuring the blocking and tightening effect. However, pulling the limiting rod outward can release the restriction on the ratchet, facilitate the resetting of the reel, and loosen the blocking tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a liver portal blocking device proposed by the utility model;

[0018] Figure 2 This is a cross-sectional view of a hepatic portal blocking device proposed by the utility model.

[0019] In the figure: 1 positioning seat, 2 first pull rope, 3 compression bag, 4 blocking tube, 5 baffle, 6 spring, 7 knob, 8 shell, 9 second pull rope, 10 air inlet pipe, 11 ratchet, 12 take-up drum, 13 partition, 14 limiting rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1-Figure 2 A liver portal blocking device comprises a positioning seat 1, a shell 8 is fixedly installed on the upper end of the positioning seat 1, the shell 8 is a hollow cylindrical structure with a top, a winding drum 12 is arranged inside the shell 8, the winding drum 12 is elastically connected to the positioning seat 1 through a clockwork spring, which is convenient for resetting after the blocking is completed, and the blocking tube 4 is relaxed, and a partition 13 is fixedly installed in the middle of the winding drum 12, and the upper and lower ends of the winding drum 12 are respectively wound with a first pull rope 2 and a second pull rope 9, and the other ends of the first pull rope 2 and the second pull rope 9 both penetrate the shell 8 and the positioning seat 1 and are fixedly connected with the blocking tube 4, and two through holes are symmetrically arranged on the positioning seat 1, and the first pull rope 2 and the second pull rope 9 are respectively located in the two through holes;

[0023] A limiting mechanism for limiting the reverse rotation of the winding drum 12 is arranged inside the housing 8, and the limiting mechanism includes a ratchet 11 rotatably connected to the top of the housing 8, the ratchet 11 is coaxially fixed with the winding drum 12, the upper end of the housing 8 is rotatably connected to a knob 7 coaxial with the winding drum 12, and the side of the knob 7 is evenly spaced and provided with a plurality of anti-slip protrusions, and a limiting rod 14 for limiting the ratchet 11 is penetrated through the side wall of the housing 8, and the limiting rod 14 is slidably connected to the housing 8, and a baffle 5 is fixedly installed on one end of the limiting rod 14, and the baffle 5 is elastically connected to the housing 8 through a spring 6;

[0024] It also includes a compression bag 3 fixedly mounted on the lower end surface of the positioning seat 1 , an air intake pipe 10 is fixedly mounted on the upper end of the compression bag 3 , and the upper end of the air intake pipe 10 passes through the positioning seat 1 .

[0025] Working principle:

[0026] When in use, the positioning seat 1 is fixed at the liver hilum, and the knob 7 is rotated to drive the winding drum 12 to rotate, so that the first pull rope 2 and the second pull rope 9 are wound up, so that the blocking tube 4 is pulled, so that the tube body of the blocking tube 4 fits around the liver hilum and is tightened, thereby blocking the blood at the liver hilum. Due to the design of the limiting rod 14, the purpose of limitation is achieved, and the winding drum 12 is prevented from resetting under the action of the spring. On the contrary, the limiting rod 14 is pulled outward to release the restriction on the ratchet 11, which facilitates the resetting of the winding drum 12 and relaxes the blocking tube 4.

[0027] The compression bag 3 can also be inflated through the air inlet pipe 10 to make it expand. The expanded compression bag 3 can further squeeze the portal of the liver, thereby enhancing the blocking effect of the portal blood. When the portal of the liver is blocked too tightly, the pressure on the portal of the liver blockage can be reduced by deflating, thereby improving the blocking effect of the blocking tube 4, so that medical staff can block the portal blood more conveniently and quickly.

[0028] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, shall make equivalent replacements or changes, which shall be covered by the protection scope of the utility model.

Claims

1. A liver portal blocking device, comprising a positioning seat (1), characterized in that: A housing (8) is fixedly mounted on the upper end of the positioning seat (1), a winding drum (12) is arranged inside the housing (8), the winding drum (12) and the positioning seat (1) are elastically connected via a clockwork spring, a partition (13) is fixedly mounted in the middle of the winding drum (12), a first pull rope (2) and a second pull rope (9) are respectively wound around the upper and lower ends of the winding drum (12), the other ends of the first pull rope (2) and the second pull rope (9) both pass through the housing (8) and the positioning seat (1) and are fixedly connected to a blocking tube (4); A limiting mechanism for limiting the reverse rotation of the winding drum (12) is provided inside the housing (8); The limiting mechanism comprises a ratchet (11) rotatably connected to the top of the housing (8), the ratchet (11) being coaxially fixed to the winding drum (12), the upper end of the housing (8) being rotatably connected to a knob (7) coaxial with the winding drum (12), a limiting rod (14) for limiting the ratchet (11) being provided through the side wall of the housing (8), the limiting rod (14) being slidably connected to the housing (8), a baffle (5) being fixedly mounted on one end of the limiting rod (14), and the baffle (5) being elastically connected to the housing (8) via a spring (6).

2. A hepatic portal blocking device according to claim 1, characterized in that: It also comprises a compression bag (3) fixedly mounted on the lower end surface of the positioning seat (1), an air intake pipe (10) fixedly mounted on the upper end of the compression bag (3), and the upper end of the air intake pipe (10) passes through the positioning seat (1).

3. A hepatic portal blocking device according to claim 1, characterized in that: The side edge of the knob (7) is provided with a plurality of anti-slip protrusions at equal intervals.

4. A hepatic portal blocking device according to claim 1, characterized in that: The positioning seat (1) is symmetrically provided with two through holes, and the first pull rope (2) and the second pull rope (9) are respectively located in the two through holes.

5. A hepatic portal blocking device according to claim 1, characterized in that: The shell (8) is a hollow cylindrical structure with a roof on the top.

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