LU506540B1 - A LIVER VALVE TENSIONING DEVICE - Google Patents

Abstract

The present invention discloses a liver valve tensioning device comprising: a separating clamp, a support assembly and a snap assembly; the support assembly is rotatably connected to the outside of the end of the first clamp arm and the second clamp arm, respectively; the inner rear end of the support assembly is fixedly connected to a pull cord, and the pull ring at the rear end is pulled by the pull cord to achieve fixation of the position of the support assembly, so as to ensure that the free movement of the support assembly does not cause damage to the internal organs of the support assembly during the procedure, and that the position of the liver portals can be reached and the liver portals can be propped up and opened by the support assembly; make the pull cord as a whole into a Y-shaped to ensure that when controlling the time can be through a pull ring at the same time to control the two pull cords and thus the two components of supporting the fixation or movement; In addition, the present invention in the through the buckle component will be fixed the opening position and size of the angle of the angle of the opening, to prevent when performing other operations, the separation of pliers of the unfixed caused other injuries, to ensure that it can be stable for the opening of the support.

Description

A liver valve tensioning device LU506540

Technical area

The present invention belongs to the technical field of medical devices and particularly relates to a liver valve tensioning device.

Technology in the background

The hilum is located in the upper central area of the liver and is the connection between the liver and other organs such as the gallbladder, stomach and duodenum; it is the entrance to the liver and the place where blood vessels, bile ducts and lymph vessels enter the

liver; In addition, structures such as lymphatic vessels and neurovascular structures are connected to the liver through this area. The lymphatic vessels serve to drain the lymph fluid from the liver and surrounding tissues, and the neurovascular vessels provide the innervation and blood supply to the liver; the hilum can be called a perfect “traffic artery”; However, if a patient has liver problems, liver surgery is often required, and during liver surgery, in order to better observe and handle the internal structure of the liver, the surgeon may need to

Open the liver valve, which is generally done with a pull hook, to remove the liver of the

patients and thus achieve the corresponding purpose. If improperly

However, when handling the pulling hook, there is a risk of liver damage and the

Patient suffers great damage, so a device is fitted to open the liver valve.

Combined with clinical experience, the purpose of the present invention is to provide a

To provide a liver valve tensioning device that can be well adhered to the surface of the liver to open the hepatic portal, so that it is convenient for the doctor to

operation. And the installation location can move freely, at the same time there is after the

Determination of the opening position and the size of the opening a corresponding

Locking mechanism at the position of the outer handle to lock the position, which is convenient for the doctor to perform other operations.

Content of the invention

In order to solve the above-mentioned technical problems and achieve the above-mentioned purpose, the present invention discloses a liver door opener comprising: a

Separating clamp, a support assembly and a snap assembly; the separating clamp consists of a first clamp arm and a second clamp arm which are pivotally connected to each other, and a T-slot is mounted on the upper end of the rotor shaft which connects the first clamp arm and the second clamp arm; the outside of the end of the first clamp arm and the second clamp arm are pivotally connected to the support assembly, and the inner rear

end of the support assembly is firmly connected to the pull wire; the two lateral pull wires extend along the first clamp arm and the second clamp arm, respectively, to converge into a single line in the T-slot on the rotary shaft connecting the first clamp arm and the second clamp arm and pass through the square limiting block provided at the rear end of the second clamp arm; the fixation or activity of the

Support arrangement is controlled by pulling the pull wires;

The end of the second clamp arm is provided with a strip on one side, and the

Top of the end of the first clamp arm is provided with a fastening strip that can be rotated to pass through the fastening strip and there is a

Number of grooves around the back of the fastening strip; One side of the fixed

strip is firmly attached to the snap assembly, the snap assembly comprising: a

Cam, a movable block, a fixed sleeve and a snap head, the cam is connected to the upper end of the first clamp arm by a rotary axis, and a

Toggle strip is provided on one side of the cam; The rear end of the cam is provided with a fixing sleeve, the fixing sleeve and the cam are arranged at intervals, the

Fixing sleeve is a hollow structure, the inside of the fixing sleeve is slidably provided with a movable block, and the movable block is connected with the card head by a spring; the left and right movement of the movable block is controlled by the cam to control the fixing and separation of the card head and the slot, thereby fixing the opening angle of the first clamp arm and the second clamp arm;

The support assembly further comprises a support block, a support spindle; the support plate is connected to the end of the first clamp arm and the second clamp arm by means of the support spindle, and the support plate is freely movable;

The support assembly further comprises a support block, a support spindle, a support rod and a coil spring; one end of the support rod is fixedly connected to the support spindle, and the other

end is rotatably connected to the support block, and the support spindle is provided with a spiral spring, and one end of the spiral spring is connected to the tong arm, and the other end is connected to the support spindle; Both ends of the fixed support rod are symmetrically connected with

springs, one end of which is firmly connected to the support spindle and the other end is firmly connected to the

support block;

Furthermore, the first clamp arm and the second clamp arm are arranged linearly with a number of spherical limiting blocks on both sides, wherein the spherical

Limit blocks wrap around the pull wire and the pull wire has a pull ring at the end;

Furthermore, the support block has a length between 5 mm and 15 mm and a thickness between 0.5 mm and 2 mm, and the support block is rotatable about the support pin at an angle between 0° and 60°;

Furthermore, the side walls of the first arm and the second clamp arm are provided with springs which are arranged between the pivot joint and the card strip;

The advantageous effect of the present invention is:

The present invention rotates and connects said support assembly to the

Outside of the end of said first clamp arm or said second clamp arm, respectively, and the inner rear end of said support assembly is fixedly connected to a pull wire, and the pull wire pulls the pull ring at the rear end to fix the position of said

support arrangement to ensure that no internal organ is damaged by the

Support arrangement due to the free movement of the support arrangement during

In addition, the position of the liver valve can be affected by the

support device can be achieved and the liver valve can be kept open; In addition, in the present invention, when setting the pull cord at the upper end of the

Rotating shaft at the rotary joint of the first clamp arm and the second clamp arm a T-

A slot is provided through which the pull cords are brought together so that the pull cords are generally formed into a Y-shape, ensuring that two

Pull cords can be controlled simultaneously by a pull ring to fix or

Movement of the two support assemblies to control; In addition, the present invention is provided with a fastening strip on the top of the end of the first clamp arm, and the card strip rotates and passes through the fastening strip, and there are a number of

Card slots in the perimeter of the back of the fixing strip; The fixing strip is firmly provided with the snap arrangement on one side of the fixing strip, and the angle according to deh}/506540

Adjusting the clamping position and size is fixed by the snap arrangement, which prevents other injuries caused by the release of the cutting pliers during

carrying out other operations, and ensuring that the

Tension can be carried out in a stable manner.

Description of the attached drawings

In order to better illustrate the technical solutions of the embodiments of the present invention, a brief introduction to the description of the

Embodiments given.

The accompanying drawings, which are necessary for the description of the embodiments, are briefly presented below.

Figure 1 is a schematic representation of the overall structure of a

liver valve tensioning device;

Figure 2 is a schematic representation of the overall structure of another liver valve tensioner support assembly;

Figure 3 is a partial view of the rear end of a disconnect terminal of a

liver valve tensioning device;

Figure 4 is an enlarged schematic view of a snap mechanism of a

liver valve tensioning device;

Figure 5 is a schematic diagram of the overall structure of the bracket assembly of

Embodiment 2 of a liver valve tensioning device;

Figure 6 is a schematic diagram of another form of the structure of

Embodiment 3 of a liver valve tensioning device;

Figure 7 is a schematic structural diagram of a carrier assembly with

Permanent magnets for a liver valve tensioning device;

Figure 8 is a schematic structural diagram of the support device of the present

Invention in combination with a laparoscopic application;

Figure 9 is one form of the support device of the present invention supporting a pin in an internal mold;

Figure 10 is an enlarged schematic representation of the support pin in the present

invention in an internal form;

Figure 11 is a schematic diagram of the structure of the state of the support block of the present invention after it has been rotated.

In the accompanying drawings, a list of the parts represented by each of the symbols is as follows: 1-separator clamp, 11-jaw ring, 12-spring, 13-rotary shaft, 131-T-slot, 14-card strip, 141-groove, 15-fastening strip, 16-first clamp arm, 17-square limit block, 18-second clamp arm, 2-snap device, 21-knee lever strip, 22-cam, 23-movable block, 24-snap head, 25-fastening sleeve, 3-support device, 31-support block, 32-seat spindle, 33-pull cord, 331-pull ring, 34-spherical limit block, 35-

Permanent magnet, 36 support rod.

Detailed description

The present invention discloses a liver door opener comprising: a separating clamp 1, a support assembly 3 and a snap assembly 2; the separating clamp 1 comprises a first

Clamp arm 16 and a second clamp arm 18 which are rotatably connected to each other, and a T-slot 131 is provided at the upper end of the rotary shaft which connects the first clamp arm 16 and the second clamp arm 18; The first clamp arm 16 and the second clamp arm 18 are rotatably connected to the support assembly 3 at the outside of the end of the first clamp arm 16 and the second clamp arm 18, respectively, and the support assembly 3 is fixedly connected to a

Pull cord 33 connected to the inner rear end of the support assembly 3; The pull cords 33 extend along the first clamp arm 16 and the second clamp arm 18, respectively, and converge in a single line in the T-slot 131 on the shaft connecting the first clamp arm 16 and the second clamp arm 18, and pass through a square

Limiting block provided at the rear end of the second clamp arm 18; the

Fixation or movement of the support assembly 3 is controlled by pulling on the wires 33;

The second clamp arm 18 is provided with a card strip 14 at the end face and the first clamp arm 16 is provided with a fastening strip 15 at the top of the end face, the strip 14 being rotated to pass through the fastening strip 15; the

Fastening strip 15 is provided with a groove 141 in a circumferential arrangement at the rear; The fastening strip 15 is fixedly provided on one side with the snap assembly 2, which comprises: cam 22, movable block 23, fastening sleeve 25,

Snap head 24; the cam 22 is connected by means of a rotary shaft to the upper end of the first

clamp arm 16, and the cam 22 is provided on one side with a toggle lever strip 21; The rear end of the cam 22 is provided with a fastening sleeve 25 which is spaced from the cam 22, the fastening sleeve 25 having a hollow structure, within the fastening sleeve 25 there is a movable block 23 which is within the

fastening sleeve 25 slides, and the movable block 23 with the snap head 24 by means of a

Spring 12 is connected; The left and right movements of the movable block 23 are controlled by the cam 22 to control the fixing and separating of the snap head 24 and the groove 141, thereby changing the opening angle of the first clamp arm 16 and the second

clamp arm 18 is fixed.

Embodiment 1

In this embodiment, the support assembly 3 comprises a support block 31, a

Support spindle 32; the support plate is connected to the end of the first clamp arm 16 and the second clamp arm 18 via the support spindle 32, and the support plate can be moved freely; with the help of the support of the support arrangement 3, the liver valve can be supported in order to

to ensure field of vision of the operation; In addition, at the rear end of the inside of the support block 31 of the support assembly 3, there is a pull cord 33 which restricts the rotation of the support block 31 about the support spindle 32; When the pull cord 33 is pulled, the support block 31 is pulled by the pulling force, and since the pull cord 33 is located on the inside of the support block 31, the front end of the support block 31 may bend during the pulling process.

And the buckling is related to the height of the bulbous restricting block 34 which restricts the pull cord 33 and the distance from the support plate. The closer the height and unit of the support block 31 are to each other and the farther the distance from each other, the smaller the buckling angle will be. Therefore, in order to ensure a small buckling angle, this

Execution the height of the bulbous support block 31 is kept at the same height as the

Point of application of the pull cord 33 acting on the support block 31;

In this embodiment, the length of the support block 31 is between 5 mm and 15 mm, the thickness is between 0.5 mm and 2 mm, and the angle of rotation of the support block 31 around the support spindle

32 is between 0° and 45°; Since the diameter of the normal liver valve of an adult is about 5 mm to 25 mm, the length of the support block 31 is set to 5 mm to 15 mm to ensure that the liver valve can be kept well open to ensure normal

Application to an adult; At the same time, in this embodiment, 5 since the support block 31 is freely rotatable, the angle of rotation is related to the mounting position of the rotation axis, when the liver valve is propped up, the support block 31 and the liver valve can be adjusted to each other, so that in order to ensure the degree of adjustment and the angle of rotation, it is ensured that the angle of rotation with the support block 31 is around the

Support rotation axis 32 can be in the range of 0°-45°;

To ensure that the support block 31 is not damaged and fits well to the

surface of the liver door, the support block 31 in this embodiment is again provided with a certain curvature.

Embodiment 2

In this embodiment, the support assembly 3 comprises a support block 31, a

Support spindle 32, a support rod 36 and a spiral spring; one end of the support rod 36 is fixedly connected to the support spindle 32 and the other end is rotatably connected to the support block 31, and a spiral spring is provided on the support spindle 32, one end of the spiral spring being connected to a clamp arm and the other end to the support spindle 32; The support rod 36 is symmetrically provided at both ends with springs 12, one end of which is fixedly connected to the

Support spindle 32 and the other end is firmly connected to the support block 31; By means of the

Support arrangement 3 allows the liver door to be kept open to ensure a surgical field of view, in the following procedure: When pulling the pull cord 33, the

Support block 31 is pulled under the action of the tensile force, and the support block 31 connected

Support rod 36 is rotated along the support spindle 32, whereby during rotation it is necessary to

force of the spiral spring to achieve the purpose of laying flat; During the

Insertion into the human body, the support assembly 3 is held in position by pulling on the pull cord 33, which, once in position, is released for use; after

When the pull cord 33 is released, the support block 31 is returned to its original position by the force of the spiral spring;

In the present embodiment, since springs 12 are provided at both ends of the support rod 36, the springs 12 can exert a buffer effect on the pressure force when the

Liver door is folded up so that there is no sudden loss of function of the

Support block 31 7 due to the pressure force generated by the liver door, and the

Support of the springs 12 corresponds to the action of a shock absorber and buffer, which allows a gradual and slow rotation and does not generate a shock when the angle of the

Support block 31 is changed.

Embodiment 3

In this embodiment, a different type of support arrangement 3 is provided, as shown in the

Figures 6 and 7, where two permanent magnets 35 with opposite magnetic

Properties on the support block 31 at the end of the first tong arm 16 and the second

pliers arm 18 to achieve the fixation of the support block 31 by the interaction between the permanent magnets 35; The procedure is as follows: Before use, the separating pliers 1 are brought together, whereupon the support blocks 31 at the ends of the first

clamp arm 16 and the second clamp arm 18 are held by the mutual attraction of the opposing permanent magnets 35. When the liver gate is reached,

the first and second clamp arms 18 are separated so that the two permanent magnets 34/506540 are in contact with each other in principle, whereupon the support block 31 is released and can rotate freely; after completion of the use, the first clamp arm 16 and the second clamp arm 18 are closed, and the two support blocks 31 are fixed again under the action of the anisotropic permanent magnet 35 and can then be slowly removed from the housing; in this way, the pull cord 33 and the pull ring 331 do not need to be controlled, and through the magnetic attraction, it is possible to reduce the structure of the device, which can greatly reduce the size of the special housing and the production cost.

Embodiment 4

In this embodiment, the first clamp arm 16 and the second clamp arm 18 are linearly arranged on both sides with a number of spherical limiting blocks 34, the spherical limiting blocks 34 enclose the pull cord 33, and the pull cord 33 is provided with a pull ring 331 at the end of the pull wire 33; by means of the spherical

Limiting blocks 34 specify the position of the pulling wire 33, thereby preventing the pulling cord 33 from slipping inside the body, and at the same time, the pulling cord 33 can also be guided by the limitation of the spherical limiting blocks 34, and the

Height of the spherical limit blocks 34 and the height of the support block 31 can be fully controlled to prevent the support block 31 from falling when pulling the

pulling wire 33 is distorted; In this embodiment, a spring 12 is provided on the side wall of the first arm and the second clamp arm 18 between the rotary shaft and the card strip 14; the spring 12 is provided to ensure that the separating pliers 1 can be opened at a certain angle, which prevents damage to the internal organs by sudden closing.

Embodiment 5

In this embodiment of the present invention, when setting up the pull cord 33 at the upper end of the rotary shaft at the rotary connection of the first clamp arm 16 and the second clamp arm 18, a T-groove 131 is provided through which the pull cords are brought together to form a Y-shape as a whole to ensure that

Control of the pull cord 33 two pull cords 33 can be controlled simultaneously by a pull ring 331 to control the fixation or movement of the two support assemblies 3; And through the second clamp arm 18 rear end of the square limiting block, through the square groove and the pull ring 331 connection, through the square

Limit block on the pull ring 331 to form a certain restriction effect, and thus limit the movement of the pull cord 33, prevent the pull cord 33 from being free to prevent the pull cord 33, and at the same time convenient to pull the pull cord 33;

The adjustment of T-slot 131 is convenient to control the pulling of pull wire 33 at the same time, if there is no restriction of T-slot 131, the pulling of pull wire 33 on both sides may not be uniform, so add T-slot 131 as a restriction to prevent the above situation from occurring.

Embodiment 6

In this embodiment, an application of the present invention in

Combination with the prior art is provided, in particular as described in Figures 8 - 11, wherein the support assembly 3 is combined for use under laparoscopy, wherein the support spindle 32 is arranged within the clamp arms, and wherein the support block 31 and the clamp arms are able to be in a straight line when closed

; are to ensure that it can be adapted for use under laparoscopy kanhU506540

When using, the support block 31 and the clamp arms are first positioned in a straight

Line and then inserted into the abdominal cavity, and after the two clamp arms arrive at the liver portal position, they are opened, and then the support block 31 is slowly brought into contact with the liver portal wall so that the support block 31 is released so that it can fit well on the surface of the anal wall, and then the size of the opening is adjusted as needed; To ensure that the support block 31 fits well on the surface of the

Liver valve, in this embodiment an anti-slip pattern is provided on the contact surface between the support block 31 and the liver valve to prevent slipping.

The application principle of the present invention is as follows: After completion of the

Preparatory work, first the first clamp arm 16 and the second clamp arm 18 are closed and the pull ring 331 is pulled so that the pull ring 331 holds the support block 31 in its

position, and then, after the position of the liver door is reached, the pull ring 331 is released to release the support assembly 3 so that the support block can move freely on the support assembly 3; At this point, the doctor's settings allow the support block 31 to be attached to the wall of the liver door, whereupon the liver door is slowly opened by controlling the first clamp arm 16 and the second clamp arm 18. After the

To determine the appropriate position, the toggle strip 21 of the snap assembly 2 is pivoted counterclockwise and the cam 22 is rotated by the toggle strip 21 to drive the cam 22, which presses on the movable block 23, which in turn presses the spring 12 to drive the snap head 24 towards the groove 141, and then rotate it 90 degrees

Rotation of the cam 22 is locked. At this point, the liver valve is fully opened and fixed, and subsequent operations can be performed; after use is completed, clockwise toggle the toggle strip 21 under the action of the spring 12, the snap head 24 away from the groove 141, unlocking, and then close the

Separating forceps 1, and pull the pull ring 331 again to fix the support assembly 3, and then slowly move out of the patient's body.

The preferred embodiments of the invention disclosed above are intended only as an aid in illustrating the invention, and the preferred embodiments are not an exhaustive list of all details, nor do they limit the invention to the specific embodiments described only.

Claims (6)

Claims LU506540 1. A liver valve clamping device characterized in that it comprises: a separating forceps, a support assembly, a snap assembly; the separating forceps is formed by the first forceps arm and the second forceps arm which rotate and are connected to each other, and the upper end of the rotary shaft connecting the first forceps arm and the second forceps arm is provided with a T-groove; the first clamp arm and the second clamp arm are rotatably connected to the support assembly on the outside of the end of the first clamp arm and the second clamp arm, respectively, and a pulling wire is fixedly connected to the rear end of the inside of the support assembly; the two lateral pulling wires extend along the first clamp arm and the second clamp arm, respectively, to converge into a single line in the T-groove on the rotary shaft connecting the first clamp arm and the second clamp arm, and pass through the square limiting block provided at the rear end of the second clamp arm; the fixation or movement of the support assembly is controlled by pulling or the pulling wires; The end of the second clamp arm is provided with a strip, and the top of the end of the first clamp arm is provided with a fixing strip which can be rotated to pass through the fixing strip; the back of the fixing strip has a number of grooves in the circumferential arrangement; the fixed bar is fixedly provided with the snap assembly on one side of the fixed bar, the snap assembly comprising: a cam, a movable block, a fixing sleeve and a snap head; the cam is connected to the upper end of the first clamp arm by a rotary shaft, and a toggle strip is provided on one side of the cam; the rear end of the cam is provided with a fixing sleeve, the fixing sleeve and the cam are arranged at intervals, the fixing sleeve is a hollow structure, the inside of the fixing sleeve is slidably provided with a movable block, and the movable block is connected to the card head by a spring; the left and right movement of the movable block is controlled by the cam to control the fixing and separating of the card head and the slot, thereby fixing the opening angle of the first clamp arm and the second clamp arm. 2. A liver valve tensioning device according to claim 1, characterized in that the support assembly comprises a support block and a support spindle; the support plate is connected to the end of the first clamp arm and the second clamp arm through the support spindle and the support plate can be freely movable. 3. A liver valve tensioning device according to claim 1, characterized in that the tensioning assembly comprises a support block, a support spindle, a support rod and a coil spring; one end of the support rod is fixedly connected to the support rotary shaft, and the other end is rotatably connected to the support block, and the support rotary shaft is provided with a coil spring, and one end of the coil spring is connected to the forceps arm, and the other end is connected to the support rotary shaft; and springs are symmetrically provided at both ends of the fixed support rod, and one end of the springs is fixedly connected to the support rotary shaft, and the other end is fixedly connected to the support block. 4. A liver valve tensioning device according to claim 1, characterized in that there are a number of spherical limiting blocks arranged linearly on both sides of the first clamp arm and the second clamp arm, the spherical limiting blocks wrapping around the pull wire, and a pull ring is provided at the end of the pull wire. LU506540 5. A liver valve tensioning device according to claim 1, characterized in that the length of the support block is between 5 mm and 15 mm, the thickness is between 0.5 mm and 2 mm and the angle of rotation of the support block about the support axis is between 0° and 60°. 6. A liver valve tensioning device according to claim 1, characterized in that the first arm and the side walls of the second clamp arm are provided with springs which are arranged between the pivot point and the card strip.