Vacuum negative pressure sucker liver suspension device

Abstract

The utility model belongs to the technical field of medical instruments, particularly relates to a liver suspension device with a vacuum negative pressure sucker, and aims to solve the problems that a sealing effect is formed through a groove and an elastic part, but the elastic part is easy to deform after long-time use, so that the sealing effect is reduced, and a better sealing effect cannot be realized. Comprising a traction tube, one end of the traction tube is connected with a sucker body, and the other end of the traction tube is connected with an exhaust mechanism for one-way exhaust; the exhaust mechanism comprises a one-way exhaust part, the one-way exhaust part communicates with the other end of the traction pipe, and a fixing plate is fixed in the one-way exhaust part. The air extractor is detached, at the moment, the fixing block is not pushed by the outside, the fixing block is pushed to reset under the action of self extension of the compression spring, the first sealing gasket is driven to be inserted into the vent hole for sealing, sealing can be effectively conducted, and the situation that normal operation can be affected due to attenuation of the adsorption effect is reduced.

Description

Technical Field

[0001] The utility model relates to a suspension device, in particular to a vacuum negative pressure suction cup liver suspension device, belonging to the technical field of medical equipment. Background Art

[0002] With the continuous improvement of laparoscopic surgical techniques and the continuous optimization of surgical instruments, liver resection surgery is becoming more and more routine through laparoscopic technology. However, when performing right liver lobe surgery through laparoscopy, it is necessary to cut the coronary ligament, triangular ligament, hepatorenal ligament, separate the bare area between the liver and the diaphragm, fully free the right liver lobe, and sometimes expose the entire retrohepatic inferior vena cava. These structures are all located on the lateral and posterior sides of the liver and are difficult to expose, so the right liver lobe needs to be pulled or suspended to clearly reveal the field of vision.

[0003] In the prior art, there is a vacuum negative pressure suction cup liver suspension device disclosed in announcement number CN219814200U, which includes an adsorption disc; a negative pressure tube interconnected and connected to the adsorption disc; a sealing structure is arranged inside the negative pressure tube, and the sealing structure includes an elastic member, a guide channel, a deformation channel and a deformation groove. Two elastic members are symmetrically arranged in the adsorption disc cavity, and the two elastic members are away from the end faces of the adsorption disc to form a guide channel. By arranging the elastic members, a deformation groove is formed inside the elastic member. The gas in the deformation groove can push the wall surfaces of the two elastic members close to each other to deform. The two elastic members are more closely fitted to each other, and the sealing effect on the negative pressure tube is better, which prevents the adsorption effect from being weakened in the adsorption disc after the vacuum is exhausted, so that the sealing of the negative pressure tube by the elastic member does not completely rely on the elastic potential energy of the elastic member itself, and the sealing is achieved by using the air pressure in the deformation groove to push the elastic member to deform.

[0004] However, in the implementation of relevant technologies, it was found that the above-designed hanger has the following problems: in the above-mentioned technical solution, an elastic part is provided to form a deformation groove inside the elastic part, and the deformation groove is filled with gas. After the vacuum equipment pipeline is separated from the two elastic parts, the two elastic parts fit together to form a seal. Although a sealing effect is formed by the groove and the elastic part, the elastic part is prone to deformation after long-term use, which leads to a reduction in the sealing effect and a better sealing effect cannot be achieved. Utility Model Content

[0005] The utility model provides a vacuum negative pressure suction cup liver suspension device to solve at least one of the above technical problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a vacuum negative pressure suction cup liver suspension device, comprising a traction tube, one end of which is connected to a suction cup body, and the other end of which is connected to an exhaust mechanism for one-way exhaust;

[0007] The exhaust mechanism includes a one-way exhaust component, which is connected to the other end of the traction tube. A fixed plate is fixed inside the one-way exhaust component. Two guide rods are vertically penetrated inside the fixed plate. Movable plates are fixed at the ends of the two guide rods. A first sealing gasket is fixed on the upper surface of the movable plate. A vent hole matching the first sealing gasket is opened inside the fixed plate. Compression springs are sleeved on the outer surfaces of the two guide rods. Fixed blocks abutting against the compression springs are fixed at the upper ends of the two guide rods.

[0008] As a further solution of the utility model: auxiliary balls are installed inside the fixing block, and the fixing block and the fixing plate form an elastic structure through the guide rod and the compression spring.

[0009] As a further solution of the utility model: a thread groove is provided inside the one-way exhaust member, and the upper end of the thread groove is threadedly connected to the first connecting member.

[0010] As a further solution of the utility model: a puncture needle is fixed to the upper end of the first connecting member.

[0011] As a further solution of the utility model: a connecting cavity is provided inside the traction tube.

[0012] As a further solution of the utility model: a second connecting piece threadedly connected to the suction cup body is fixed to the end of the traction tube.

[0013] As a further solution of the utility model: a second sealing gasket is bonded to one end of the traction tube and close to the outer side of the second connecting piece.

[0014] The beneficial effects of the utility model are as follows: by removing the air extraction device, the fixing block is not pushed by the outside at this time, and under the effect of the extension of the compression spring itself, the fixing block is pushed to reset, thereby driving the first sealing pad to be inserted into the vent hole for sealing, which can effectively seal and reduce the situation that the normal operation will be affected by the attenuation of the adsorption effect; the auxiliary ball can be rotated to ensure the normal rotation and tightening of the connector, thereby pushing the fixing block to move;

[0015] The beneficial effects of the utility model are as follows: the suspender is placed into the patient's abdominal cavity through the puncture hole, a puncture needle is passed from the patient's body through the patient's abdominal wall to the outside of the abdomen, the puncture needle and the traction tube are passed from the patient's body to the outside of the patient's body, the suction cup body remains in the patient's abdominal cavity and fits with the patient's left external liver lobe, so as to perform subsequent suspension; through the second connecting piece arranged on the traction tube, the second connecting piece is aligned with the connecting hole on the suction cup body, and then the suction cup body is twisted, so as to connect the suction cup body and the second connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the traction tube of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the one-way exhaust member of the utility model;

[0019] Figure 4 For this utility model Figure 3 The enlarged view of point A in the middle;

[0020] In the figure: 1. traction tube; 2. suction cup body; 3. one-way exhaust member; 301. fixed plate; 302. guide rod; 303. compression spring; 304. movable plate; 305. first sealing pad; 306. vent hole; 307. fixed block; 308. auxiliary ball; 4. first connecting member; 5. threaded groove; 6. puncture needle; 7. connecting cavity; 8. second sealing pad; 9. second connecting member. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1, as Figures 1 to 4 As shown, a vacuum negative pressure suction cup liver suspension device comprises a traction tube 1, one end of the traction tube 1 is connected to a suction cup body 2, and the other end of the traction tube 1 is connected to an exhaust mechanism for one-way exhaust;

[0023] The exhaust mechanism includes a one-way exhaust component 3, which is connected to the other end of the traction tube 1. A fixed plate 301 is fixed inside the one-way exhaust component 3. Two guide rods 302 are vertically penetrated inside the fixed plate 301. A movable plate 304 is fixed to the ends of the two guide rods 302. A first sealing gasket 305 is fixed to the upper surface of the movable plate 304. A vent 306 matching the first sealing gasket 305 is opened inside the fixed plate 301. Compression springs 303 are sleeved on the outer surfaces of the two guide rods 302. Fixed blocks 307 abutting against the compression springs 303 are fixed to the upper ends of the two guide rods 302. By removing the air extraction device, the fixed block 307 is not pushed by the outside at this time. Under the action of the extension of the compression spring 303 itself, the fixed block 307 is pushed to reset, thereby driving the first sealing gasket 305 to be inserted into the vent 306 for sealing. The sealing can be effectively performed to reduce the situation where the normal operation is affected by the attenuation of the adsorption effect.

[0024] Embodiment 2, in addition to all the technical features of Embodiment 1, this embodiment also includes: an auxiliary ball 308 is installed inside the fixing block 307, and the fixing block 307 forms an elastic structure with the fixing plate 301 through the guide rod 302 and the compression spring 303, and the auxiliary ball 308 can rotate to ensure the normal rotation and tightening of the connector, thereby pushing the fixing block 307 to move; a thread groove 5 is provided inside the one-way exhaust member 3, and the upper end of the thread groove 5 is threadedly connected with the first connecting member 4, the first connecting member 4 is aligned with the thread groove 5, and the puncture needle 6 is manually twisted to fix the puncture needle 6 and the one-way exhaust member 3; the upper end of the first connecting member 4 is fixed with the puncture needle 6, and the suspender is placed into the patient's abdominal cavity from the puncture hole, and the puncture needle 6 is passed through the patient's abdominal wall from the patient's body to the outside of the abdomen, and the puncture needle 6 is passed from the patient's body to the outside of the patient together with the traction tube 1, and the suction cup body 2 remains in the patient's abdominal cavity and fits with the patient's left lateral lobe of the liver, so as to perform subsequent suspension.

[0025] Embodiment three, in addition to all the technical features of embodiment one, this embodiment also includes: a connecting cavity 7 is opened inside the traction tube 1, and the connection cavity 7 set in the traction tube 1 facilitates the vacuum operation on the suction cup body 2; a second connecting piece 9 threadedly connected to the suction cup body 2 is fixed at the end of the traction tube 1, and the second connecting piece 9 set on the traction tube 1 is aligned with the connecting hole on the suction cup body 2, and then the suction cup body 2 is twisted to connect the suction cup body 2 and the second connecting piece 9; a second sealing gasket 8 is bonded to one end of the traction tube 1 and close to the outside of the second connecting piece 9, and the second sealing gasket 8 and the outer wall of the suction cup body 2 are tightly fitted to improve the sealing effect.

[0026] Working principle: Before using the vacuum negative pressure suction cup liver suspension device, first place the suction cup body 2 in a suitable position, align the second connecting piece 9 set on the traction tube 1 with the connecting hole on the suction cup body 2, and then screw the suction cup body 2 to connect the suction cup body 2 and the second connecting piece 9. After fully tightening, the second sealing pad 8 and the outer wall of the suction cup body 2 fit closely, thereby improving the sealing effect, and then align the first connecting piece 4 with the threaded groove 5, and manually screw the puncture needle 6. , fix the puncture needle 6 and the one-way exhaust member 3 to complete the assembly of the suspension device, and then put the suspension device into the patient's abdominal cavity through the puncture hole, and pierce the puncture needle 6 from the patient's body through the patient's abdominal wall to the outside of the abdomen, and the puncture needle 6 and the traction tube 1 are passed from the patient's body to the outside of the patient, and the suction cup body 2 remains in the patient's abdominal cavity and fits with the patient's left lateral lobe of the liver, and then the puncture needle 6 is removed from the one-way exhaust member 3, and the input pipe and the external suction device are connected through the threaded groove 5 in the one-way exhaust member 3. The one-way exhaust member 3 is threadedly connected. At this time, the external connector is inserted into the one-way exhaust member 3 and contacts the auxiliary ball 308. The auxiliary ball 308 can be rotated to ensure the normal rotation and tightening of the connector, thereby pushing the fixed block 307 to move, driving the guide rod 302 to move vertically, so that the first sealing gasket 305 on the movable plate 304 and the vent 306 on the fixed plate 301 are separated. At this time, the flow restriction of the vent 306 is released. The suction device can use a vacuum negative pressure aspirator or a syringe, etc. There is a connecting cavity 7 in the traction tube 1. With continuous suction, the suction cup body 2 gradually generates negative pressure and tightly absorbs the left lateral lobe of the liver, thereby suspending. After the negative pressure adsorption is completed, the suction device is removed. At this time, the fixed block 307 is not pushed by the outside. Under the action of the extension of the compression spring 303 itself, the fixed block 307 is pushed to reset, thereby driving the first sealing gasket 305 to insert into the vent 306 for sealing, which can effectively seal and reduce the situation where the normal operation is affected by the attenuation of the adsorption effect.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A vacuum negative pressure suction cup liver suspension device, comprising a traction tube (1), characterized in that: One end of the traction tube (1) is connected to a suction cup body (2), and the other end of the traction tube (1) is connected to an exhaust mechanism for one-way exhaust; The exhaust mechanism comprises a one-way exhaust component (3), the one-way exhaust component (3) is connected to the other end of the traction tube (1), a fixed plate (301) is fixed inside the one-way exhaust component (3), two guide rods (302) are vertically penetrated inside the fixed plate (301), movable plates (304) are fixed at the ends of the two guide rods (302), a first sealing gasket (305) is fixed on the upper surface of the movable plate (304), a vent hole (306) matching the first sealing gasket (305) is opened inside the fixed plate (301), compression springs (303) are sleeved on the outer surfaces of the two guide rods (302), and fixed blocks (307) abutting against the compression springs (303) are fixed at the upper ends of the two guide rods (302).

2. A vacuum negative pressure suction cup liver suspension device according to claim 1, characterized in that: An auxiliary ball (308) is installed inside the fixing block (307), and the fixing block (307) forms an elastic structure with the fixing plate (301) through the guide rod (302) and the compression spring (303).

3. A vacuum negative pressure suction cup liver suspension device according to claim 1, characterized in that: A thread groove (5) is provided inside the one-way exhaust member (3), and a first connecting member (4) is threadedly connected to the upper end of the thread groove (5).

4. A vacuum negative pressure suction cup liver suspension device according to claim 3, characterized in that: A puncture needle (6) is fixed to the upper end of the first connecting member (4).

5. The vacuum negative pressure suction cup liver suspension device according to claim 1, characterized in that: A connecting cavity (7) is provided inside the traction tube (1).

6. The vacuum negative pressure suction cup liver suspension device according to claim 1, characterized in that: A second connecting piece (9) threadedly connected to the suction cup body (2) is fixed at the end of the traction tube (1).

7. A vacuum negative pressure suction cup liver suspension device according to claim 6, characterized in that: A second sealing gasket (8) is bonded to one end of the traction tube (1) and close to the outer side of the second connecting piece (9).

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