CN114652555A

CN114652555A - Liver volume determination auxiliary method and device before hepatobiliary surgery

Info

Publication number: CN114652555A
Application number: CN202210275288.8A
Authority: CN
Inventors: 靳斌; 王伟; 翟翔宇; 杜刚
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-06-24
Anticipated expiration: 2042-03-21
Also published as: CN114652555B

Abstract

The invention provides an auxiliary method and a device for determining the volume of a liver before hepatobiliary surgery, which relate to the technical field of liver volume determination and comprise a base, wherein the main body of the base is of a hollow structure, transverse grooves are respectively formed in the front side and the rear side of the top end surface of the base, guide blocks are connected in the transverse grooves formed in the base in a sliding manner and are arranged at four positions, so that the problem that the patient needs to lie on a bed body to perform corresponding measurement work when the liver volume of the patient is measured in the prior art, and the problem that the patient is lack of effective support during measurement work is solved, the body position of the patient lying on the bottom plate is jacked and deflected by upward tilting of the bottom plate, the aim of clearer radiography is further fulfilled, and the design can perform rapid adjustment and deflection work when the patient cannot communicate with the patient or cannot move autonomously, thereby achieving the purpose of more practicability.

Description

Liver volume determination auxiliary method and device before hepatobiliary surgery

Technical Field

The invention relates to the technical field of liver volume determination, in particular to a liver volume determination auxiliary device before hepatobiliary surgery.

Background

The hepatobiliary surgery mainly researches serious diseases seriously threatening the health of Chinese people, such as hepatocellular carcinoma, hepatobiliary calculus, posthepatitic cirrhosis, acute liver failure caused by severe hepatitis and the like, and the device, such as a corresponding CT (computed tomography) machine and the like, is required to be used for measuring the volume of the liver in the treatment process, and a corresponding auxiliary device is required to be used in the measurement process.

The prior application CN201621148669.6 of the research team discloses a liver exposure device in laparoscopic liver right lobe tumor resection with convenient adjustment, compared with the prior art, the device can fully expose the right liver, an operator can clearly see the overall view of the lesion of the right rear lobe of the liver, the right liver is rotated to the front, the operative field is more fully exposed, the operation is convenient, the visual error can be effectively reduced, the bulge can properly increase the friction force of the contact part of a water sac and a machine body to prevent the exposure device from displacing, and meanwhile, the friction injury to the machine body is avoided; the arrangement of the water outlet controller ensures that water is pumped out of the water bag through the hose when the water bag is required to be small in the using process, so that the size of the water bag is suitable for the requirement of an operation; meanwhile, the device reduces the workload of assistants, not only saves physical strength, but also improves efficiency, reduces the hepatic portal blocking time, and effectively reduces the ischemia reperfusion injury of the liver. Therefore, the device is very effective, simple to manufacture, low in cost and convenient to operate, and greatly improves the success rate of the laparoscopic right posterior liver surgery.

However, as for the present auxiliary device, it needs to lie the patient on the bed body and carry out corresponding measurement work when measuring the liver volume of patient, and it is owing to lack the effective support to the patient when carrying out measurement work, make it move the fine setting and then can have inconvenience if needing the patient when carrying out the radiography work, make medical personnel be difficult to carry out comprehensive observation operation, and can't detect the metal object that contains on the patient before carrying out the survey, and then there is the limitation.

Disclosure of Invention

The invention provides a liver volume determination auxiliary device before hepatobiliary surgery, which specifically comprises: the base, the main part of base is hollow out construction, and the transverse groove has all been seted up to both sides around the top face of base, the inside sliding connection of transverse groove who sets up in the base has the guide block, the guide block is equipped with everywhere altogether, wherein every two horizontal adjacent two places guide block of department is a set of, and two sets of guide blocks are sliding connection respectively at two transverse groove inside positions, all pegged graft at the top of two sets of guide blocks and have the spring post, the spring post is used for spacing sheet, bottom fixedly connected with support at the base, transverse member's top side fixedly connected with curb plate in the support, the curb plate is equipped with two places altogether, and drive gear is installed to the inboard of two curb plates, motor A is installed to one side of curb plate, motor A is used for driving drive gear to rotate.

Optionally, the belt is installed on the outer sides of the two belt wheels, transverse grooves are formed in the front side face and the rear side face of the base, a guide block is connected to the inner portion of each transverse groove formed in the base in a sliding mode, a screw hole is formed in the guide block and matched with the screw rod, a frame body is fixedly connected to the top end face of each guide block, a metal sensor is installed inside the frame body, and the metal sensor installed in the frame body is used for detecting metal foreign bodies on the base.

Optionally, the top of support rotates and is connected with the fan, still installs motor B in one side of support, and motor B is used for adjusting the fan and turns to in the support inside, has all fixedly connected with leading truck in the bottom face four corners position of base, and the scarce groove has been seted up to the inside of leading truck, and the scarce inslot portion sliding connection who sets up in the leading truck has the layer board, and the layer board is used for holding up the patient.

Optionally, the motor a and the driving gear together form a transmission structure, a mounting rack is fixedly connected to the outer side of the base, the mounting rack is provided with two positions, the two mounting racks are fixedly connected to the left side surface and the right side surface of the base respectively, a motor B is installed inside the mounting rack, a screw is installed on the right side of the motor B, the motor B is used for driving the screw, and belt pulleys are installed on the outer sides of the two screws.

Optionally, an electric push rod B is installed inside the connecting seat, the electric push rod B is provided with two positions, the two electric push rods B are respectively installed at the left side surface and the right side surface of the inside of the transverse groove formed in the connecting seat, a moving block is further installed at one side of each of the two electric push rods B, and an electric push rod C is installed at the top end of each moving block.

Optionally, the bottom end face of the supporting plate is fixedly connected with a rack, the rack fixedly connected with the bottom end face of the supporting plate is matched with the driving gear, the base is hinged to a bottom plate, the bottom plate is internally provided with a rectangular array and provided with a through groove, the two bottom plates are hinged to the front side and the rear side of the base respectively, one side of the two bottom plates far away from the base is also fixedly connected with a connecting block, and the connecting block is of a telescopic structure with a spring.

Optionally, the guide frame and one side of the bottom plate are fixedly connected with mounting seats, wherein every two vertically adjacent mounting seats form a group, the inner side of each group of mounting seats is hinged with an electric push rod a, the electric push rod a is used for lifting the bottom plate, the inner side of the connecting block is hinged with a connecting seat, and a transverse groove is formed in the connecting seat.

Optionally, a top block is installed on one side, far away from the moving block, of the electric push rod C, a roller is installed at the top end of the top block, the top block is used for lifting the patient, the top block and the electric push rod C jointly form a lifting structure, and the supporting plate is connected in the guide frame at four positions in a sliding mode.

The invention also provides a liver volume measurement auxiliary method before hepatobiliary surgery, which is realized by using any one liver volume measurement auxiliary device before hepatobiliary surgery.

Advantageous effects

According to the auxiliary device of the embodiment of the invention, compared with the traditional device, the guide block is arranged on the outer side of the base, the guide block can drive the frame body to perform displacement operation along the base by the rotation drive of the motor A to the screw rod, the metal detector is arranged in the frame body, so that in the process that the frame body moves along the base, whether metal foreign matters exist on the patient lying on the base or not can be rapidly detected by the metal detector arranged in the frame body, if the metal foreign matters still exist on the patient, medical care personnel can be prompted by the rapid alarm operation of the metal detector that the current patient does not have the condition for carrying out contrast detection, the design effectively avoids the design that the metal foreign matters on the patient cannot be completely removed to influence the contrast detection due to the existence of the metal foreign matters during the detection operation, the problem that the patient is easily hurt due to the existence of the metal foreign body is avoided.

In addition, in the invention, in the process of radiography, if the body of a patient needs to be locally adjusted, the electric push rod B arranged on the inner side of the connecting seat can be started to push the moving block outwards, the electric push rod C and the ejector block are driven by the moving block to move to a proper position under the body of the patient, then the electric push rod C arranged on the top side of the moving block is started to jack the ejector block upwards, and the body part of the patient lying on the bottom plate is lifted up through the upward movement of the ejector block, so that the radiography of the machine can be clearer, and the purpose of ensuring the detection effect is further achieved.

In addition, when a patient lies on the base and enters the detection machine for measurement, if the body position of the patient needs to be adjusted due to unclear radiography, the electric push rod A installed in the installation seat on one side of the guide frame can be started to jack up the bottom plate on one side needing to be adjusted, and the body position of the patient lying on the bottom plate can be jacked up and deflected by the upward tilting of the bottom plate, so that the aim of enabling the radiography to be clearer is fulfilled, and the design can be used for quickly adjusting and deflecting when the patient cannot communicate with the patient or cannot autonomously move, so that the aim of being more practical is fulfilled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings in the following description relate to only some embodiments of the invention and are not intended to limit the invention.

In the drawings:

fig. 1 shows a schematic view of a front side view of an auxiliary device according to an embodiment of the invention, partly disassembled and in half-section;

fig. 2 is a schematic diagram showing a top side view structure of the assist device according to the embodiment of the invention in a partially-structured and half-sectioned state;

fig. 3 is a schematic view showing an assembling structure of an auxiliary device according to an embodiment of the present invention;

fig. 4 shows a schematic view of a base-to-power putter a display structure of an auxiliary device according to an embodiment of the invention;

FIG. 5 is a schematic view illustrating a connecting seat to top block display structure of an auxiliary device according to an embodiment of the present invention;

fig. 6 shows a schematic view of a guide block to motor B demonstration structure of the auxiliary device according to an embodiment of the invention;

FIG. 7 shows a schematic view of an enlarged structure at A in FIG. 2 of an auxiliary device according to an embodiment of the invention;

fig. 8 shows a schematic view of an enlarged structure at B in fig. 2 of the auxiliary device according to an embodiment of the present invention;

list of reference numerals

1. A base; 2. a guide block; 3. a spring post; 4. a support; 5. a side plate; 6. a motor A; 7. a drive gear; 8. a motor B; 9. a screw; 10. a pulley; 11. a mounting frame; 12. a belt; 13. a guide block; 14. a frame body; 15. a fan; 16. a motor C; 17. a guide frame; 18. a support plate; 19. a rack; 20. a base plate; 21. connecting blocks; 22. a mounting base; 23. an electric push rod A; 24. a connecting seat; 25. an electric push rod B; 26. a moving block; 27. an electric push rod C; 28. and (7) a top block.

Detailed Description

In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference symbols in the various drawings indicate like elements.

Example (b): please refer to fig. 1 to 8:

the invention provides a liver volume determination auxiliary device before hepatobiliary surgery, which comprises: the bed comprises a base 1, the main body of the base 1 is of a hollow structure, transverse grooves are formed in the front side and the rear side of the top end face of the base 1, a guide block 2 is connected inside each transverse groove formed in the base 1 in a sliding mode, the guide blocks 2 are arranged in four positions, every two adjacent guide blocks 2 are in one group, two groups of guide blocks 2 are respectively connected to the inner positions of the two transverse grooves in a sliding mode, spring columns 3 are inserted into the top ends of the two groups of guide blocks 2, the spring columns 3 are used for limiting bed sheets, a support 4 is fixedly connected to the bottom end of the base 1, side plates 5 are fixedly connected to the top sides of transverse components in the support 4, the side plates 5 are provided with two positions in total, a driving gear 7 is installed on the inner sides of the two side plates 5, a motor A6 is installed on one side of each side plate 5, a motor A6 is used for driving the driving gear 7 to rotate, a top block 28 is installed on one side, far away from a moving block 26 in an electric push rod C27, and rollers are installed on the top end of the top block 28, and the top block 28 is used for lifting the patient, the top block 28 and the electric push rod C27 jointly form a lifting structure, and the supporting plate 18 is connected in the guide frame 17 at four positions in a sliding manner.

In addition, according to the embodiment of the present invention, as shown in fig. 1 to 3, the motor a6 and the driving gear 7 together form a transmission structure, the mounting frame 11 is fixedly connected to the outer side of the base 1, the mounting frame 11 is provided with two positions, the two mounting frames 11 are respectively and fixedly connected to the left and right side positions of the base 1, the motor B8 is installed inside the mounting frame 11, the screw 9 is installed on the right side of the motor B8, the motor B8 is used for driving the screw 9, the belt pulleys 10 are installed on the outer sides of the two screw 9, the belts 12 are installed on the outer sides of the two belt pulleys 10, the transverse grooves are respectively opened on the front and rear side surfaces of the base 1, the guide block 13 is slidably connected inside the transverse groove opened in the base 1, the screw hole is opened inside the guide block 13, the screw hole opened in the guide block 13 is matched with the screw 9, the frame 14 is fixedly connected to the top end surface of the guide block 13, the metal sensor is installed inside the frame 14, the metal sensor installed in the frame body 14 is used for detecting the metal foreign matter on the base 1, when the patient lies on the base 1, and enters the interior of the detection machine for detection, if the patient needs to be adjusted due to unclear radiography, the electric push rod A23 installed in the installation seat 22 on one side of the guide frame 17 can be started to jack up the bottom plate 20 on one side to be adjusted, and the upward tilting of the bottom plate 20 can jack up and deflect the body of the patient lying on the bottom plate 20, so that the purpose of clearer radiography is achieved, and the design can be used for quickly adjusting and deflecting operation when the patient cannot be communicated with the patient or the patient cannot be moved autonomously, so that the purpose of more practicability is achieved.

In addition, according to the embodiment of the present invention, as shown in fig. 1 to 6, a fan 15 is rotatably connected to the top end of the frame body 14, a motor C16 is further installed on one side of the frame body 14, the motor C16 is used for adjusting the rotation direction of the fan 15 inside the frame body 14, four corners of the bottom end surface of the base 1 are fixedly connected with guide frames 17, a notch is formed inside each guide frame 17, a supporting plate 18 is slidably connected inside each notch formed in each guide frame 17, the supporting plate 18 is used for supporting a patient, a rack 19 is fixedly connected to the bottom end surface of each supporting plate 18, the rack 19 fixedly connected to the bottom end surface of each supporting plate 18 is matched with the driving gear 7, a bottom plate 20 is hinged inside the base 1, through grooves are formed inside the bottom plate 20 in a rectangular array, the two bottom plates 20 are respectively hinged to the front and rear sides of the base 1, a connecting block 21 is further fixedly connected to one side of the two bottom plates 20 away from the base 1, connecting block 21 is the extending structure who has the spring, when carrying out the radiography in-process, if need carry out local adjustment operation to patient's health, can push out the movable block 26 outside through the electric putter B25 of start installation inboard at connecting seat 24, and move the suitable position under patient's body through movable block 26 drive electric putter C27 and kicking block 28, then install the electric putter C27 of movable block 26 top side through the start and come the kicking block 28 jack-up, and come to lie in the body part of the patient on bottom plate 20 and carry out the support operation through the upward movement of kicking block 28, make the radiography of machine can be more clear, and then reach the purpose of ensureing detection effect.

In addition, according to the embodiment of the present invention, as shown in fig. 1 to 8, the guide frame 17 and one side of the bottom plate 20 are fixedly connected with the mounting seats 22, wherein every two longitudinally adjacent mounting seats 22 are in a group, the inner side of each group of mounting seats 22 is hinged with the electric push rod a23, the electric push rod a23 is used for lifting the bottom plate 20, the inner side of the connecting block 21 is also hinged with the connecting block 24, the connecting block 24 is internally provided with the transverse groove, the electric push rod B25 is installed inside the connecting block 24, the electric push rod B25 is provided with two positions, the two electric push rods B25 are respectively installed at the left side and the right side positions inside the transverse groove formed in the connecting block 24, the moving block 26 is further installed at one side of the two electric push rods B25, the electric push rod C27 is installed at the top end of the moving block 26, when the patient lies at the upper positions of the bottom plate 20 and the connecting block 24 installed inside the base 1, the motor B8 arranged on the inner side of the mounting frame 11 can be started to drive the screw rod 9 in a rotating way, the guide block 13 is driven to carry out displacement operation along the transverse groove arranged in the base 1 through the rotation of the screw rod 9 and the engagement between the screw holes arranged in the guide block 13, and in the process of carrying out displacement on the guide block 13, the metal detector arranged on the inner side of the frame body 14 can be synchronously driven to carry out quick inspection work on whether undetached metal foreign bodies exist on the body of a patient lying on the base 1, so that the aim of protecting a user from being injured when CT (computed tomography) examination is fulfilled.

The invention also provides a liver volume determination auxiliary method before hepatobiliary surgery, which is realized by using any one liver volume determination auxiliary device before hepatobiliary surgery, and specifically comprises the following steps:

the patient is moved to one side of the base 1 through the sickbed to be placed, if the patient can move autonomously, the patient can move to the upper side of the base 1 by himself to lie down, if the patient has mobility inconvenience, the sickbed with the patient is lifted to the height matched with the supporting plate 18, then the motor A6 arranged on one side of the side plate 5 is started to drive the driving gear 7 to rotate, the driving gear 7 is meshed with the rack 19 fixedly connected to the bottom side of the supporting plate 18, the supporting plate 18 extends outwards to the upper side of the sickbed so that an attendant can move the patient to the supporting plate 18, and the motor A6 drives the driving gear 7 to rotate to carry the patient to the base 1 through the supporting plate 18 to be placed;

when a patient lies on the upper positions of the bottom plate 20 and the connecting seat 24 which are arranged on the inner side of the base 1, the motor B8 which is arranged on the inner side of the mounting frame 11 can be started to drive the screw rod 9 to rotate, the guide block 13 is driven to perform displacement operation along the transverse groove which is formed in the base 1 through the rotation of the screw rod 9 and the meshing between the screw holes which are formed in the guide block 13, and in the process of displacement of the guide block 13, the metal detector which is arranged on the inner side of the frame body 14 can be synchronously driven to perform rapid routing inspection operation on whether metal foreign matters which are not removed exist on the body of the patient lying on the base 1, so that the aim of protecting the user from being injured when performing CT inspection is fulfilled;

in the process of moving the frame body 14, the motor C16 arranged on one side of the frame body 14 is started to rotationally drive the fan 15 arranged on the inner side of the frame body 14, so that the fan 15 arranged on the inner side of the frame body 14 provides the motor C16 with driving to turn towards the position of one side of the lying patient on the base 1, and the fan 15 is driven to displace along with the movement of the frame body 14 so as to remove the foreign dust which influences the normal detection work, such as the clothes of the lying patient on the base 1, the dust attached to the body surface and the like, and further achieve the purpose of being more practical;

when a patient lies on the base 1 and enters the detection machine for measurement, if the body position of the patient needs to be adjusted due to unclear radiography, the electric push rod A23 arranged in the mounting seat 22 on one side of the guide frame 17 can be started to jack up the bottom plate 20 on the side needing to be adjusted, and the body position of the patient lying on the bottom plate 20 can be jacked up and deflected by the upward tilting of the bottom plate 20, so that the aim of clearer radiography is fulfilled, and the design can be used for quickly adjusting and deflecting when the patient cannot communicate with the patient or the patient cannot move autonomously, so that the aim of more practicability is fulfilled;

in the process of radiography, if the body of the patient needs to be locally adjusted, the moving block 26 can be pushed out outwards by starting the electric push rod B25 arranged on the inner side of the connecting seat 24, the electric push rod C27 and the jacking block 28 are driven by the moving block 26 to move to a proper position under the body of the patient, then the jacking block 28 is jacked upwards by starting the electric push rod C27 arranged on the top side of the moving block 26, and the body part of the patient lying on the bottom plate 20 is jacked up by the upward movement of the jacking block 28, so that the radiography of the machine can be clearer, and the purpose of ensuring the detection effect is further achieved.

Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. A liver volumetric measurement auxiliary device before hepatobiliary surgery, characterized in that includes: the bed comprises a base (1), the main body of the base (1) is of a hollow structure, transverse grooves are formed in the front side and the rear side of the top end face of the base (1), guide blocks (2) are connected to the inner portions of the transverse grooves formed in the base (1) in a sliding mode, the guide blocks (2) are arranged in four positions, every two adjacent guide blocks (2) in the two positions are in one group, two groups of guide blocks (2) are connected to the inner portions of the two transverse grooves in a sliding mode respectively, spring columns (3) are inserted into the top ends of the two groups of guide blocks (2), the spring columns (3) are used for limiting a bed sheet, a support (4) is fixedly connected to the bottom end of the base (1), side plates (5) are fixedly connected to the top side of a transverse component in the support (4), two positions are arranged on the side plates (5) in the two positions, a driving gear (7) is installed on the inner sides of the two side plates (5), and a motor A (6) is installed on one side of the side plate (5), the motor A (6) is used for driving the driving gear (7) to rotate.

2. The pre-hepatobiliary surgery liver volume measurement aid of claim 1, wherein: the transmission structure is jointly formed by the motor A (6) and the driving gear (7), the mounting frame (11) is fixedly connected to the outer side of the base (1), the mounting frame (11) is provided with two positions, the two mounting frames (11) are respectively and fixedly connected to the positions of the left side surface and the right side surface of the base (1), the motor B (8) is arranged inside the mounting frame (11), the screw rod (9) is installed on the right side of the motor B (8), the motor B (8) is used for driving the screw rod (9), and the belt wheels (10) are installed on the outer sides of the two screw rods (9).

3. The hepatobiliary preoperative liver volume determination aid of claim 2, wherein: belt (12) are installed in the outside of two place band pulley (10), the transverse groove has all been seted up to the front and back both sides face in base (1), the inside sliding connection of transverse groove who sets up in base (1) has guide block (13), the screw has been seted up to the inside of guide block (13), and the screw that sets up in guide block (13) and screw rod (9) phase-match, top end face fixedly connected with support body (14) at guide block (13), the internally mounted of support body (14) has metal sensor, the metal sensor of installation is used for detecting the metallic foreign matter on base (1) in support body (14).

4. A hepatobiliary preoperative liver volume determination aid as claimed in claim 3, wherein: the top of support body (14) is rotated and is connected with fan (15), still installs motor C (16) in one side of support body (14), and motor C (16) are used for adjusting fan (15) turning to in support body (14) inside, and in equal fixedly connected with leading truck (17) in the bottom face four corners position of base (1), the scarce groove has been seted up to the inside of leading truck (17), and the scarce inslot portion sliding connection who sets up in leading truck (17) has layer board (18), and layer board (18) are used for holding up the patient.

5. The pre-hepatobiliary surgery liver volume measurement aid of claim 4, wherein: fixedly connected with rack (19) on the bottom face of layer board (18), and rack (19) and drive gear (7) phase-match that layer board (18) bottom face fixed connection, the inside of base (1) articulates there is bottom plate (20), the inside of bottom plate (20) is the rectangular array and has seted up logical groove, and both sides position around two bottom plates (20) articulate respectively in base (1), keep away from one side of base (1) in two bottom plates (20) still fixedly connected with connecting block (21), the extending structure of connecting block (21) for having the spring.

6. The pre-hepatobiliary surgery liver volume measurement aid of claim 4, wherein: the equal fixedly connected with mount pad (22) in one side of leading truck (17) and bottom plate (20), wherein vertical adjacent mount pad (22) in per two departments is a set of, and the inboard of every group mount pad (22) articulates there is electric putter A (23), and electric putter A (23) are used for lifting bottom plate (20), still articulates in the inboard of connecting block (21) has connecting seat (24), and the transverse groove has been seted up to the inside of connecting seat (24).

7. The pre-hepatobiliary surgery liver volume measurement aid of claim 6, wherein: the electric push rod B (25) is installed inside the connecting seat (24), the electric push rod B (25) is provided with two positions, the two electric push rods B (25) are installed on the left side surface and the right side surface of the inner portion of the transverse groove formed in the connecting seat (24) respectively, the moving block (26) is further installed on one side of the two electric push rods B (25), and the electric push rod C (27) is installed on the top end of the moving block (26).

8. The pre-hepatobiliary surgery liver volume measurement aid of claim 7, wherein: one side of the electric push rod C (27) far away from the moving block (26) is provided with a top block (28), the top end of the top block (28) is provided with a roller, the top block (28) is used for lifting a patient, the top block (28) and the electric push rod C (27) jointly form a lifting structure, and the support plate (18) is connected in the guide frame (17) at four positions in a sliding mode.

9. An auxiliary method for measuring the volume of a liver before a hepatobiliary surgery is characterized in that: by using a hepatobiliary preoperative liver volume determination aid according to any of claims 1 to 8.