Porta hepatis blocking device in laparoscopic liver surgery

Abstract

The utility model relates to the technical field of surgical operation auxiliary instruments, in particular to a hepatic portal blocking device in a laparoscopic hepatic operation, which comprises a blocking belt and a supporting guide wire, the two ends of the blocking belt in the length direction are respectively a head part and a tail part, the tail part of the blocking belt is in a rat tail shape and is gradually thinned, and the supporting guide wire is arranged on the blocking belt. A central hole extending towards the head of the blocking belt is formed in the tail of the blocking belt, a lock hole is formed in the position, close to the head of the blocking belt, of the side face of the blocking belt in a penetrating mode, two rows of lock catches are connected to the side face of the blocking belt, and the lock catches in the same row extend in the length direction of the blocking belt. The lock catches are located between the lock hole and the tail portion of the blocking belt, the supporting guide wire is inserted into the center hole and plays a role in supporting the blocking belt, the defects of an existing blocking method can be effectively overcome, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to surgical operation auxiliary instrument technical field especially, relates to a kind of hepatic portal blocking device in laparoscopic liver surgery. BACKGROUND

[0002] First hepatic portal blocking is the operation commonly used in laparoscopic liver resection. There is no uniform practice at present, and the usual practice is to use a sterile glove ring, a pediatric urinary catheter or other elastic bands as a pre-blocking belt, pass through behind the hepatoduodenal ligament, wrap the first hepatic portal, and achieve the purpose of blocking the hepatic portal by knotting or tightening the blood vessel clamp.

[0003] The existing method has the following disadvantages: first, before blocking the hepatic portal, the blocking belt needs to be passed through the small omental foramen (also known as the Winslow foramen) behind the hepatoduodenal ligament. This foramen is irregular in shape and orientation due to the pressure of the tissue, and it is not easy to pass the blocking belt through the foramen because the blocking belt is relatively soft and lacks sufficient support. Sometimes, the surgical grasping forceps need to be passed from one side of the foramen to the other side through the back to hold the blocking belt and pass it through the foramen. These operations sometimes increase the difficulty of the surgery and waste surgical time. In addition, the method of knotting or tightening the blood vessel clamp after tightening the blocking belt is sometimes not easy to tighten, resulting in incomplete blocking. Moreover, the operations of blocking and unblocking are time-consuming and labor-intensive. SUMMARY

[0004] To solve the problems mentioned in the background art, the purpose of the present utility model is to provide a hepatic portal blocking device in laparoscopic liver surgery.

[0005] To achieve the above-mentioned objectives, the technical solution of the present utility model is as follows:

[0006] A hepatic portal blocking device in laparoscopic liver surgery, comprising a blocking belt and a support guide wire, the two ends of the blocking belt in the length direction are a head and a tail respectively, the tail of the blocking belt is provided with a central hole extending towards the head of the blocking belt, a lock hole is provided on the side surface of the blocking belt near the head of the blocking belt, and the side surface of the blocking belt is connected with two rows of lock buckles. The lock buckles belonging to the same row are arranged at intervals along the length direction of the blocking belt, and the lock buckles are located between the lock hole and the tail of the blocking belt. The support guide wire is inserted into the central hole and plays a supporting role on the blocking belt.

[0007] Further, the support guide wire is partially inserted into the central hole, and the end of the support guide wire outside the blocking belt is connected with a rubber tail cap.

[0008] Further, the supporting guide wire is connected with a flexible guide mechanism away from one end of the rubber tail cap, the flexible guide mechanism comprises a spring ring sheath and a cap, the spring ring sheath is sleeved on the periphery of the supporting guide wire, and the cap is connected to the tail end of the spring ring sheath, and the supporting guide wire in the spring ring sheath is tapered in a stepped manner away from the rubber tail cap.

[0009] Further, the lock catch is in a semi-conical shape, one side of the lock catch close to the tail end of the blocking belt is a small-diameter end, and the lock hole comprises a circular part and a crack part connected to the edge of the circular part.

[0010] Further, the tail of the blocking belt is tapered like a mouse tail.

[0011] The device can effectively overcome the defects of the current blocking method, the supporting guide wire of the blocking device can provide sufficient support for the blocking belt, the blocking belt can smoothly pass through the small omental foramen, the unique lock hole and lock catch device can conveniently lock and release the device, the operation is convenient, the practicality is strong, and the device has a strong application prospect, and the specific use method will be described in the embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model embodiment;

[0013] Figure 2 It is Figure 1 It is an enlarged schematic view of A in the middle.

[0014] The number of the drawings is explained: 1, blocking belt, 11, center hole, 12, lock hole, 13, lock catch, 2, supporting guide wire, 3, rubber tail cap, 4, spring ring sheath, 5, cap. DETAILED DESCRIPTION

[0015] The technical scheme in the utility model embodiments will be described clearly and completely in combination with the drawings in the utility model embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the person skilled in the art belong to the protection scope of the utility model.

[0016] As Figures 1-2As shown, a hepatic portal blocking device in laparoscopic liver surgery includes a blocking belt 1 and a supporting guide wire 2, the two ends of the blocking belt 1 in the length direction are respectively a head and a tail, the tail of the blocking belt 1 is provided with a central hole 11 extending to the head of the blocking belt 1, the side of the blocking belt 1 is provided with a lock hole 12 at a position close to the head of the blocking belt 1, the side of the blocking belt 1 is connected with two rows of lock buckles 13, the two rows of lock buckles 13 are symmetrically arranged, the lock buckles 13 belonging to the same row are arranged at intervals along the length direction of the blocking belt 1, the lock buckles 13 are located between the lock hole 12 and the tail of the blocking belt 1, and the part of the blocking belt 1 between the lock hole 12 and the lock buckle 13 closest to the lock hole 12 is a functional belt, and the supporting guide wire 2 is inserted into the central hole 11 and plays a supporting role on the blocking belt 1.

[0017] The head of the blocking belt 1 is used for holding operation, the functional belt is used for hepatic portal blocking, the lock hole 12 and the lock buckle 13 are matched and used for locking in place when the blocking belt 1 is tightened, and the tail of the blocking belt 1 is used for supporting the supporting guide wire 2 to pass through the lock hole 12. The tail structure of the blocking belt 1 is characterized by being gradually tapered like a mouse tail. The lock hole 12 is characterized by being divided into a circular part and a crack part, the circular part is comparable in diameter to the tail, which is convenient for passing through, and the crack part is used for locking the lock buckle 13. The lock buckle 13 is characterized by being semicircular and conical, the tail side is smooth, which is convenient for passing through, and the head side is steep, which is conducive to locking.

[0018] The use operation process is as follows: 1. Before use, the supporting guide wire 2 is inserted into the central hole 11 of the blocking belt 1; 2. The hepatic portal blocking device is placed into the abdominal cavity from the Troca hole; 3. The blood vessel clamp holds the tail of the blocking belt 1 to pass the blocking belt 1 through the small omental foramen; 4. The supporting guide wire 2 is pulled out from the Troca hole and taken out of the body; 5. The tail of the blocking belt 1 is held to pass through the lock hole 12, and then the tail of the blocking belt 1 is pulled to tighten the blocking belt 1 to the appropriate lock buckle 13 position to complete the blocking; 6. When the blocking is released, the blood vessel clamp holds the head of the blocking belt 1 to pull to loosen the blocking belt 1.

[0019] In the embodiment, the supporting guide wire 2 is partially inserted into the central hole 11, and one end of the supporting guide wire 2 outside the blocking belt 1 is connected with a rubber tail cap 3, which is used to effectively avoid damage to the tissue by the tail end of the blocking belt 1 during operation.

[0020] In the embodiment, the end of the supporting guide wire 2 away from the rubber tail cap 3 is connected with a flexible guide mechanism, the flexible guide mechanism includes a spring ring sheath 4 and a cap 5, the spring ring sheath 4 is sleeved on the periphery of the supporting guide wire 2, and the cap 5 is connected to the end of the spring ring sheath 4, the supporting guide wire 2 in the spring ring sheath 4 is tapered in the direction away from the rubber tail cap 3, and the flexible guide mechanism can effectively avoid damage to the tissue by the supporting guide wire 2 during operation, and also facilitates the insertion of the supporting guide wire 2 into the central hole 11.

[0021] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hepatic portal blocking device in a laparoscopic liver surgery, characterized by, The blocking belt (1) has a head and a tail at two ends of the length direction, the tail of the blocking belt (1) is provided with a center hole (11) extending to the head of the blocking belt (1), a lock hole (12) is provided on the side of the blocking belt (1) near the head, and two rows of lock buckles (13) are connected to the side of the blocking belt (1); the lock buckles (13) in the same row are arranged at intervals along the length direction of the blocking belt (1), and the lock buckles (13) are located between the lock hole (12) and the tail of the blocking belt (1); the support guide wire (2) is inserted into the center hole (11) and supports the blocking belt (1).

2. The device according to claim 1, wherein The support guide wire (2) is partially inserted into the center hole (11), and one end of the support guide wire (2) outside the blocking belt (1) is connected with a rubber tail cap (3).

3. The device according to claim 2, wherein the device is configured to be used in a laparoscopic hepatectomy. The end of the support guide wire (2) away from the rubber tail cap (3) is connected with a flexible guide mechanism, the flexible guide mechanism comprises a spring ring sheath (4) and a cap (5), the spring ring sheath (4) is sleeved on the periphery of the support guide wire (2), the cap (5) is connected to the end of the spring ring sheath (4), and the support guide wire (2) in the spring ring sheath (4) is tapered in the direction away from the rubber tail cap (3).

4. The device according to claim 1, wherein the device is configured to be used in a laparoscopic hepatectomy. The lock buckle (13) is in a semi-conical shape, one side of the lock buckle (13) near the tail end of the blocking belt (1) is a small-diameter end, and the lock hole (12) comprises a circular part and a crack part connected to the edge of the circular part.

5. The device as claimed in claim 1, wherein, The tail of the blocking belt (1) is gradually tapered in a rat tail shape.

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