CN210095794U

CN210095794U - Novel device for hepatobiliary surgery

Info

Publication number: CN210095794U
Application number: CN201920080620.9U
Authority: CN
Inventors: 董毅; 汪亚
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2020-02-21
Anticipated expiration: 2029-01-17

Abstract

A novel device for hepatobiliary surgery is clinical, includes base, support, slide bar and drag hook subassembly at least, wherein: the appearance of support is the L form, and the first end of the first section of support is fixed on the base, and the second section of support is the forked form of U type, and two tip of slide bar are connected to two tip that are forked form of support according to the mode one-to-one that runs through, and first slider and second slider are equallyd divide and do not be with nested mode difference slidable mounting at the both ends of slide bar, and first drag hook and second drag hook all install on first slider and second slider with articulated mode difference detachably. Under the condition that the first sliding block and/or the second sliding block move along the axial direction of the sliding rod under the action of external force, the first draw hook and the second draw hook can be close to or far away from each other along the axial direction of the sliding rod. The utility model discloses simplify the operation process that the patient wound pulled open, reduced the unnecessary injury to the patient among the operation process, the practicality is strong.

Description

Novel device for hepatobiliary surgery

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a novel device for hepatobiliary surgery is clinical.

Background

The hepatobiliary surgery is various, and usually adopts minimally invasive treatment, but for operations with large wounds such as liver resection or transplantation, pancreaticoduodenectomy, and splenectomy, a surgical retractor is needed to pull apart skin and flesh of partial organs and wounds so as to achieve the purpose of exposing a focus. Skin and flesh are propped open by the mode of mostly adopting a handheld operation draw hook clinically, the whole operation process is long, so the labor intensity of medical personnel is relatively high, the existing draw hooks are mostly designed in a bilateral symmetry force, and the wound is easily stressed unevenly in practical application to form secondary injury.

Chinese patent publication No. CN206390949U discloses a surgical retractor for hepatobiliary surgery, which comprises a fixed mounting frame, a cross beam and retractor assemblies, wherein the cross beam is movably mounted on the fixed mounting frame through pins, and the retractor assemblies are movably mounted on the cross beam through pins. The utility model discloses a structural design is reasonable, and the installation is simple, and is reliable and stable, and the dynamics of both sides when realizing the edge of a knife to drawing through flexible rotatory handle is impartial, avoids leading to the secondary of edge of a knife department to draw the phenomenon to appear because of the atress inequality, and to the effect of strutting of wound when this utility model's use not only can satisfy hepatobiliary surgery, can make the wound both sides when tensile stress even in addition under the prerequisite of satisfying the purpose of strutting, more is favorable to the recovery in patient's later stage. But the device can cause the doctor to perform the operation degree of difficulty to increase because fixed mounting bracket's interference in the use, and the controlling means that the drag hook opened and shut is too close from the wound, easily causes the pollution and operates portably to the patient wound during the operation to, the height of drag hook can not be adjusted in the device, is practical inadequately.

SUMMERY OF THE UTILITY MODEL

The word "module" as used herein describes any type of hardware, software, or combination of hardware and software that is capable of performing the functions associated with the "module".

Not enough to prior art, the utility model provides a be used for clinical novel device of hepatobiliary surgery, include base, support, slide bar and drag hook subassembly at least, the drag hook subassembly includes first slider, first drag hook, second slider and second drag hook at least, wherein: the appearance of support is the L form, the first end of the first section of support is fixed on the base, the second section of support is the forked form of U type, two tip of slide bar are connected to according to the mode one-to-one that runs through two tip that are forked form of support, first slider with the second slider is equallyd divide and is do not in order nested mode difference slidable mounting the both ends of slide bar, first drag hook with the second drag hook all is installed with articulated mode difference detachably first slider with on the second slider. Under the condition that the first sliding block and/or the second sliding block move along the axial direction of the sliding rod under the action of external force, the first draw hook and the second draw hook can approach or move away from each other along the axial direction of the sliding rod.

According to a preferred embodiment, the respective second ends of the first slider and/or the second slider are all cuboid, the respective second ends of the first slider and/or the second slider are respectively provided with a bolt fixing groove and a longitudinal sliding groove along the width direction and the thickness direction thereof in a penetrating manner, the first draw hook and/or the second draw hook are respectively provided with a draw hook sliding groove in a penetrating manner, the tail ends of the first draw hook and/or the second draw hook are respectively in threaded connection with an adjusting screw in a penetrating manner, and the first draw hook or the second draw hook can be detachably mounted in the longitudinal sliding groove in a manner that a bolt simultaneously penetrates through the bolt fixing groove and the draw hook sliding groove, wherein: the adjusting screw can rotate around the central axis of the adjusting screw. The adjusting screw can abut against or disengage from the bolt in the case of rotation of the adjusting screw about its central axis.

According to a preferred embodiment, a screw fixing block is fixedly mounted at the middle position of an area of the slide rod, the area is defined by the first slider and the second slider, a threaded screw is arranged at the second end of the first section of the support in a penetrating manner, the first end of the threaded screw is rotatably mounted on the screw fixing block, a threaded transmission block is connected to the threaded screw in a threaded transmission manner, a first connecting rod is arranged between the threaded transmission block and the first slider, and a second connecting rod is arranged between the threaded transmission block and the second slider, wherein: the two ends of the first connecting rod are respectively connected to the threaded transmission block and the first sliding block in a hinged mode, the two ends of the second connecting rod are respectively connected to the threaded transmission block and the second sliding block in a hinged mode, and the threaded lead screw can rotate around the central axis of the threaded lead screw. Under the condition that the threaded lead screw rotates around the central axis of the threaded lead screw, the threaded transmission block can change a first included angle between the first connecting rod and the sliding rod and a second included angle between the second connecting rod and the sliding rod in a mode of moving along the axial direction of the threaded lead screw.

According to a preferred embodiment, the second end of screw thread lead screw is equipped with the transmission fixture block, the one end of keeping away from of transmission fixture block the screw thread lead screw is equipped with the limiting plate, slidable mounting has the crank dish on the transmission fixture block, wherein: the threaded lead screw is rotatable about its central axis in the event that the crank disk is rotated about its central axis by an external force.

According to a preferred embodiment, a toothed disc is provided on the side of the first section of the support frame close to the second end of the threaded spindle, coaxially to the threaded spindle, against which or from which the crank disc can be brought into or out of sliding movement in the axial direction of the threaded spindle, wherein: the crank plate and the toothed plate can be fitted to each other with the crank plate abutting against the toothed plate.

According to a preferred embodiment, a thrust shoulder is provided in the region of the threaded spindle which is delimited by the threaded drive block and the support.

According to a preferred embodiment, the thrust shoulder abuts against the bracket, wherein: the thrust shoulder is disengageable from the bracket in the event that the second end of the threaded lead screw is subjected to an axial force and the threaded lead screw is rotated about its central axis.

According to a preferred embodiment, a handle is arranged on the crank disc, and the crank disc can rotate around the central axis of the threaded screw under the action of an external force, so that the first draw hook and the second draw hook are close to or far away from each other.

According to a preferred embodiment, the slide bar is defined by a cylinder in shape.

According to a preferred embodiment, the first angle and the second angle are equal in size.

The utility model has the advantages of:

(1) the utility model discloses an application screw thread transmission can make first drag hook and second drag hook simultaneous movement, has simplified the operation process that the patient wound pulled open.

(2) The utility model discloses a rotatory adjusting screw supports to lean on or keeps away from the mode of bolt and has realized the length adjustment of drag hook, can adjust drag hook length as required when the operation to the atress that realizes the wound both sides is even, has reduced the unnecessary injury to the patient among the operation process.

(3) The utility model discloses a height control of drag hook is realized to adjusting bolt position in the bolt fixed slot, and the practicality is strong.

Drawings

FIG. 1 is a front view of the preferred novel device for hepatobiliary surgery of the present invention;

FIG. 2 is a schematic rear view of the preferred novel device for hepatobiliary surgery of the present invention;

FIG. 3 is a schematic top view of the preferred novel device for hepatobiliary surgery of the present invention;

FIG. 4 is a schematic structural diagram of the fluted disc embedding structure of the novel preferred device for the clinical hepatobiliary surgery of the present invention; and

fig. 5 is a schematic structural view of the preferred retractor assembly of the novel clinical device for hepatobiliary surgery of the present invention.

List of reference numerals

1: base 2: and (3) a bracket: transmission clamping block

4: the fluted disc 5: a threaded screw rod 6: screw driving block

7: first link 8: first slider 9: first drag hook

10: a slide bar 11: the second draw hook 12: lead screw fixing block

13: second slider 14: second link 15: handle bar

16: limiting plate 17: the crank disk 18: thrust shaft shoulder

19: bolt 20: longitudinal sliding groove 21: bolt fixing groove

22: hook chute 23: adjusting screw

α first included angle β second included angle

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

As shown in fig. 1 to 5, the novel device for hepatobiliary surgery of the present invention at least comprises a base 1, a support 2, a slide bar 10 and a hook assembly. The drag hook subassembly includes first slider 8, first drag hook 9, second slider 13 and second drag hook 11 at least, wherein: the holder 2 is L-shaped in shape. The first end of the first section of the bracket 2 is fixed on the base 1, and the second section of the bracket 2 is U-shaped and bifurcate. Both ends of the slide bar 10 are connected to both ends of the bracket 2 in a bifurcated shape in a one-to-one correspondence in a penetrating manner. The first slide block 8 and the second slide block 13 are respectively slidably mounted at two ends of the slide rod 10 in a nesting manner. The first draw hook 9 and the second draw hook 11 are respectively and detachably arranged on the first sliding block 8 and the second sliding block 13 in an articulated mode. In the case where the first slider 8 and/or the second slider 13 is moved in the axial direction of the slide bar 10 by an external force, the first hook 9 and the second hook 11 can move closer to or farther from each other in the axial direction of the slide bar 10. The bracket 2 is designed into an L shape, which mainly opens the space for the operation and avoids the interference of the components of the device with the operation of a doctor.

Preferably, the second end of each of the first slider 8 and/or the second slider 13 is rectangular. The second end of each of the first slider 8 and/or the second slider 13 is provided with a bolt fixing groove 21 and a longitudinal sliding groove 20 in a penetrating manner along the width direction and the thickness direction thereof, wherein the thickness direction is the shortest side thereof, and the length in the width direction is next to the longest side. The first draw hook 9 and/or the second draw hook 11 are/is provided with a draw hook chute 22 in a penetrating way. The tail ends of the first draw hook 9 and/or the second draw hook 11 are both in threaded connection with an adjusting screw rod 23 in a penetrating mode. The first hook 9 or the second hook 11 can be detachably mounted in the longitudinal slot 20 by means of a bolt 19 which penetrates both the bolt-retaining groove 21 and the hook slot 22, wherein: the adjusting screw 23 can be rotated about its central axis. In the event that the adjustment screw 23 is rotated about its central axis, the adjustment screw 23 can interfere with or disengage the bolt 19. As shown in fig. 5, when the adjusting screw 23 butts against the bolt 19, the length of the drag hook is limited when being stressed, when the two sides of the wound of a patient are clinically stressed differently when the two drag hooks are operated simultaneously, the adjusting screw 23 needs to be rotated to change the length of the drag hook entering the drag hook chute 22, so that the length of the drag hook is changed, the pulling forces of the two drag hooks on the two sides of the wound are close or even equal, and the secondary injury to the patient is reduced.

Preferably, a screw fixing block 12 is fixedly installed at the middle position of the area of the sliding rod 10 limited by the first slider 8 and the second slider 13, a threaded screw 5 is arranged at the second end of the first section of the bracket 2 in a penetrating manner, the first end of the threaded screw 5 is rotatably installed on the screw fixing block 12, a threaded transmission block 6 is connected to the threaded screw 5 in a threaded transmission manner, a first connecting rod 7 is arranged between the threaded transmission block 6 and the first slider 8, a second connecting rod 14 is arranged between the threaded transmission block 6 and the second slider 13, both ends of the first connecting rod 7 are respectively connected to the threaded transmission block 6 and the first slider 8 in a hinged manner, both ends of the second connecting rod 14 are respectively connected to the threaded transmission block 6 and the second slider 13 in a hinged manner, the threaded screw 5 can rotate around the central axis thereof, in the case that the threaded screw 5 rotates around the central axis thereof, the threaded transmission block 6 can change the included angle α between the first connecting rod 7 and the sliding rod 10 in the manner of axial movement of the threaded screw 5, and the second connecting rod 14 and the sliding rod 10, and further the threaded transmission block can change the included angle of the threaded transmission block 366 and the threaded connection through the axial movement of the screw 366, and the pulling of the second connecting rod 366, and pulling the pulling mechanism, such that the pulling mechanism can be realized through the pulling mechanism, as shown in the pulling mechanism, and pulling mechanism, such that.

Preferably, the second end of the threaded screw 5 is provided with a transmission fixture block 3. And a limiting plate 16 is arranged at one end of the transmission clamping block 3 far away from the threaded screw 5. The transmission clamping block 3 is provided with a crank disc 17 in a sliding way, wherein: in the case where the crank disk 17 is rotated about its central axis by an external force, the threaded screw 5 can be rotated about its central axis. The central position of the crank disc 17 is provided with a hole with the same shape as the transmission fixture block 3, so that the screw lead screw 5 can be driven to rotate together when the crank disc 17 is rotated, and the limiting plate 16 is used for preventing the crank disc 17 from falling off from the transmission fixture block 3.

Preferably, the toothed disk 4 is arranged coaxially to the threaded spindle 5 on the side of the first section of the support 2 close to the second end of the threaded spindle 5. The crank disk 17 can be brought into abutment against or out of the toothed disk 4 in an axially sliding manner along the threaded spindle 5, wherein: when the crank disk 17 abuts against the toothed disk 4, the crank disk 17 and the toothed disk 4 can be fitted to each other. As shown in fig. 4, when the wound needs to be pulled open, the crank plate 17 is firstly separated from the toothed plate 4, then the crank plate 17 is rotated to pull open the draw hook, and after the draw is completed, the crank plate 17 is abutted to the toothed plate 4 to enable the two to be mutually embedded, so that the position of the draw hook is fixed.

Preferably, a thrust shoulder 18 is provided in the region of the threaded spindle 5 delimited by the threaded drive block 6 and the carrier 2.

Preferably, the thrust shoulder 18 abuts against the bracket 2, wherein: under the condition that the second end of the threaded lead screw 5 is subjected to axial force and the threaded lead screw 5 rotates around the central axis thereof, the thrust shoulder 18 can be separated from the bracket 2, an installation gap is reserved in the axial direction of the threaded lead screw 5, the thrust shoulder 18 can be separated from the bracket 2 to reduce friction force when the threaded lead screw needs to rotate, and a thrust bearing can also be installed on the thrust shoulder 18 to achieve the purpose of residual force during rotation, wherein the direction of the axial force is the axial direction of the threaded lead screw 5.

Preferably, the crank disk 17 is provided with a handle 15, and in case that the handle 15 is acted by an external force, the crank disk 17 can rotate around the central axis of the threaded lead screw 5 so as to make the first hook 9 and the second hook 11 approach or move away from each other.

Preferably, the shape of the slide bar 10 is defined by a cylinder.

Preferably, the first included angle α is equal to the second included angle β.

Preferably, the threaded drive block 6 does not self-lock when the threaded spindle 5 is rotated.

For the convenience of understanding, the working principle of the novel device for hepatobiliary surgery clinical application of the present invention will be discussed.

When needs pull open patient's wound, at first rotatory adjusting screw 23 makes the position of the length adaptation wound of first drag hook 9 and second drag hook 11, secondly makes crank disc 17 break away from fluted disc 4, and rethread handle 15 rotates crank disc 17 and makes first drag hook 9 and second drag hook 11 pull open patient's wound dynamics uniformly, supports crank disc 17 at last and leans on to fluted disc 4 realization braking for the rigidity of drag hook. When suturing is needed after the operation is finished, the crank disk 17 is firstly separated from the fluted disc 4, and finally the drag hook can be separated from the wound of the patient by reversely rotating the crank disk 17.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. The utility model provides a novel device for hepatobiliary surgery is clinical, includes base (1), support (2), slide bar (10) and drag hook subassembly at least, its characterized in that, the drag hook subassembly includes first slider (8), first drag hook (9), second slider (13) and second drag hook (11) at least, wherein:

the appearance of the support (2) is L-shaped, the first end of the first section of the support (2) is fixed on the base (1), the second section of the support (2) is U-shaped and forked, two ends of the sliding rod (10) are connected to two ends of the forked support (2) in a one-to-one correspondence mode in a penetrating mode, the first sliding block (8) and the second sliding block (13) are respectively slidably mounted at two ends of the sliding rod (10) in a nesting mode, and the first drag hook (9) and the second drag hook (11) are respectively detachably mounted on the first sliding block (8) and the second sliding block (13) in a hinged mode;

under the condition that the first sliding block (8) and/or the second sliding block (13) are/is subjected to external force to move along the axial direction of the sliding rod (10), the first draw hook (9) and the second draw hook (11) can approach or move away from each other along the axial direction of the sliding rod (10).

2. The novel device according to claim 1, characterized in that the second ends of the first slider (8) and/or the second slider (13) are rectangular, the second ends of the first slider (8) and/or the second slider (13) are provided with a bolt fixing groove (21) and a longitudinal sliding groove (20) in a penetrating manner along the width direction and the thickness direction of the second slider, respectively, the first drag hook (9) and/or the second drag hook (11) are provided with a drag hook sliding groove (22) in a penetrating manner, the tail ends of the first drag hook (9) and/or the second drag hook (11) are provided with an adjusting screw (23) in a penetrating manner, and the first drag hook (9) or the second drag hook (11) can be detachably mounted on the longitudinal sliding groove (20) in a manner that a bolt (19) simultaneously penetrates the bolt fixing groove (21) and the drag hook sliding groove (22) ) Wherein:

the adjusting screw rod (23) can rotate around the central axis thereof;

the adjusting screw (23) can abut against or disengage from the bolt (19) in the case of a rotation of the adjusting screw (23) about its central axis.

3. The novel device according to claim 1, wherein a screw fixing block (12) is fixedly mounted at a middle position of an area of the sliding rod (10) defined by the first slider (8) and the second slider (13), a threaded screw (5) is arranged at a second end of the first section of the bracket (2) in a penetrating manner, a first end of the threaded screw (5) is rotatably mounted on the screw fixing block (12), a threaded transmission block (6) is connected to the threaded screw (5) in a threaded transmission manner, a first connecting rod (7) is arranged between the threaded transmission block (6) and the first slider (8), and a second connecting rod (14) is arranged between the threaded transmission block (6) and the second slider (13), wherein:

both ends of the first connecting rod (7) are respectively connected to the threaded transmission block (6) and the first sliding block (8) in a hinged mode, both ends of the second connecting rod (14) are respectively connected to the threaded transmission block (6) and the second sliding block (13) in a hinged mode, and the threaded lead screw (5) can rotate around the central axis thereof;

in the case of a rotation of the threaded spindle (5) about its central axis, the threaded drive block (6) can change a first angle (α) between the first connecting rod (7) and the slide bar (10) and a second angle (β) between the second connecting rod (14) and the slide bar (10) in such a way that it moves in the axial direction of the threaded spindle (5).

4. The novel device according to claim 3, characterized in that a transmission fixture block (3) is arranged at the second end of the threaded lead screw (5), a limiting plate (16) is arranged at one end of the transmission fixture block (3) far away from the threaded lead screw (5), and a crank disc (17) is slidably mounted on the transmission fixture block (3), wherein:

the threaded spindle (5) can be rotated about its central axis when the crank disk (17) is rotated about its central axis by an external force.

5. The new device according to claim 4, characterized in that a toothed disc (4) is provided on the side of the first section of the support (2) close to the second end of the threaded screw (5) in a coaxial manner with the threaded screw (5), the crank disc (17) being able to abut against or disengage from the toothed disc (4) in a sliding manner in the axial direction of the threaded screw (5), wherein:

the crank disk (17) and the toothed disk (4) can be fitted to each other when the crank disk (17) abuts against the toothed disk (4).

6. The novel device according to claim 5, characterized in that a thrust shoulder (18) is provided in the region of the threaded spindle (5) delimited by the threaded drive block (6) and the support (2).

7. The new device according to claim 6, characterized in that the thrust shoulder (18) abuts against the bracket (2), wherein:

the thrust shoulder (18) can be disengaged from the bracket (2) in the event of an axial force being applied to the second end of the threaded spindle (5) and the threaded spindle (5) being rotated about its central axis.

8. The novel device according to claim 5, characterized in that a handle (15) is arranged on the crank disk (17), and in case of external force acting on the handle (15), the crank disk (17) can rotate around the central axis of the threaded screw (5) so as to make the first draw hook (9) and the second draw hook (11) approach or separate from each other.

9. The new device according to claim 1, characterized in that the shape of the slide bar (10) is defined by a cylinder.

10. The novel apparatus of claim 3 wherein the first included angle (α) and the second included angle (β) are equal in magnitude.