CN212118318U

CN212118318U - Mechanical arm for laparoscopic surgery

Info

Publication number: CN212118318U
Application number: CN202020405842.6U
Authority: CN
Inventors: 程树群; 陈振华; 张修平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-12-11
Anticipated expiration: 2030-03-26

Abstract

The utility model relates to the technical field of, especially, relate to a laparoscopic surgery's arm, it has laparoscopic surgery to use the arm after the installation to solve among the prior art, and highly fixed is difficult to adjust, leads to the shortcoming that needs higher installation accuracy, including the mounting panel, the inboard rotation in activity groove is connected with the threaded rod, the upper end of threaded rod runs through mounting panel fixedly connected with adjust knob, just the outside symmetrical threaded connection of threaded rod has the movable block, two the common fixed mounting in one side of movable block has the arm base, one side fixed mounting of arm base has big arm joint, the top of big arm joint is rotated and is connected with the pivot. The utility model discloses a rotate adjust knob, drive the threaded rod rather than being connected and rotate, realize that two movable blocks in the outside drive the arm base and go up and down to change the height of fixed back arm body, reduce the installation accuracy.

Description

Mechanical arm for laparoscopic surgery

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an arm of laparoscopic surgery.

Background

The traditional surgical operation is that a doctor uses medical instruments to perform excision, suture and other treatments on body lesions of a patient. The operation is performed on the local part of the human body by using instruments such as a knife, a scissors, a needle and the like, so as to remove the pathological tissues, repair the injury, transplant the organs, improve the function and the shape and the like. However, in some procedures, the patient is subjected to great suffering. Compared with the traditional surgical operation, the surgical robot has the advantages of short positioning time, small wound, precise positioning, reduction of human errors, capability of replacing medical staff to perform operation with damage and the like.

The existing mechanical arm for laparoscopic surgery is fixed in height and angle after being installed, and is difficult to adjust, so that higher installation precision is required. Improvements are therefore needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the mechanical arm for the laparoscopic surgery is difficult to adjust after being installed, and is difficult to adjust due to the fixed height and angle, so that the defect of high installation precision is needed, and providing the mechanical arm for the laparoscopic surgery.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a laparoscopic surgery's arm, includes the mounting panel, the activity groove has been seted up to one side of mounting panel, the inboard rotation in activity groove is connected with the threaded rod, the upper end of threaded rod runs through mounting panel fixedly connected with adjust knob, just the outside symmetrical threaded connection of threaded rod has the movable block, two the common fixed mounting in one side of movable block has the arm base, one side fixed mounting of arm base has big arm joint, the top of big arm joint is rotated and is connected with the pivot, the outside fixed mounting of pivot has the arm body.

Preferably, the front surface and the rear surface of the mounting plate are symmetrically and fixedly provided with fixing pieces, and each fixing hole is formed in one side of each fixing piece.

Preferably, a limiting gear is sleeved on the outer side of the rotating shaft, a groove is formed in one side of the mechanical arm base, a movable rod penetrating through the mechanical arm base is arranged inside the groove, a clamping block is fixedly connected to the lower end of the movable rod, and a clamping groove meshed with the limiting gear is formed in one side of the clamping block.

Preferably, the upper end of the movable rod is fixedly connected with a pull ring, and the outer side of the pull ring is sleeved with a rubber sleeve.

Preferably, the outer side of the movable rod is sleeved with a return spring, and two ends of the return spring are respectively and fixedly connected with the fixture block and the mechanical arm base.

Preferably, the tooth space of the limiting gear is 0.13mm, and the fixture block is of a rectangular structure.

The utility model has the advantages that:

1. the utility model discloses a rotate adjust knob, drive the threaded rod rather than being connected and rotate, realize that two movable blocks in the outside drive the arm base and go up and down to change the height of fixed back arm body, reduce the installation accuracy.

2. The utility model provides an arm body rotates through pivot and big arm joint to utilize limit gear and draw-in groove to carry out the card solid, through upwards pulling the movable rod, realize the draw-in groove and the spacing gear separation of fixture block one side, thereby be convenient for change the angle of arm body, reduce the installation accuracy.

Drawings

Fig. 1 is a schematic structural view of a mechanical arm for laparoscopic surgery according to the present invention;

FIG. 2 is an enlarged view of a portion A of a robotic arm for laparoscopic surgery according to the present invention;

fig. 3 is a left side view of a mounting plate of a mechanical arm for laparoscopic surgery according to the present invention.

In the figure: the mechanical arm comprises a mechanical arm body 1, a rotating shaft 2, a pull ring 3, an adjusting knob 4, a threaded rod 5, a movable groove 6, a mounting plate 7, a movable block 8, a mechanical arm base 9, a large arm joint 10, a clamping groove 11, a limiting gear 12, a clamping block 13, a groove 14, a movable rod 15, a return spring 16, a fixed hole 17 and a fixed piece 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a mechanical arm for laparoscopic surgery comprises a mounting plate 7, a movable groove 6 is formed in one side of the mounting plate 7, a threaded rod 5 is rotatably connected to the inner side of the movable groove 6, an adjusting knob 4 fixedly connected to the mounting plate 7 is penetrated through the upper end of the threaded rod 5, movable blocks 8 are symmetrically and threadedly connected to the outer side of the threaded rod 5, a mechanical arm base 9 is fixedly mounted on one side of each of the two movable blocks 8, a large arm joint 10 is fixedly mounted on one side of the mechanical arm base 9, a rotating shaft 2 is rotatably connected to the top of the large arm joint 10, and a mechanical arm body 1 is fixedly mounted on.

The utility model discloses a rotate adjust knob 4, drive the threaded rod 5 rotation rather than being connected, realize that two movable blocks 8 in the outside drive the 9 lifts of arm base to change the height of fixed back arm body 1, reduce the installation accuracy.

The utility model provides a arm body 1 rotates through pivot 2 and big arm joint 10 to utilize stop gear 12 and draw-in groove 11 to carry out the card and fix, through upwards pulling movable rod 15, realize draw-in groove 11 and the separation of stop gear 12 of fixture block 13 one side, thereby be convenient for change arm body 1's angle, reduce installation accuracy.

In this embodiment, the front and rear surfaces of the mounting plate 7 are symmetrically and fixedly provided with fixing pieces 18, and one side of each fixing piece 18 is provided with a fixing hole 17, so that the mounting plate 17 is conveniently fixed.

In this embodiment, stop gear 12 has been cup jointed in the outside of pivot 2, and recess 14 has been seted up to one side of arm base 9, and recess 14's inside is provided with the movable rod 15 that runs through arm base 9, and the lower extreme fixedly connected with fixture block 13 of movable rod 15, one side of fixture block 13 seted up with stop gear 12 meshed draw-in groove 11, the convenience is to arm body 1's fixed.

In this embodiment, the upper end fixedly connected with pull ring 3 of movable rod 15, the rubber sleeve has been cup jointed in the outside of pull ring 3, conveniently controls the position of fixture block 13.

In this embodiment, reset spring 16 has been cup jointed in the outside of movable rod 15, and reset spring 16's both ends respectively with fixture block 13 and arm base 9 between fixed connection for the draw-in groove 11 of fixture block 13 one side is automatic to be meshed with limit gear 12, and the convenience is fixed to arm body 1 behind the angle regulation.

In this embodiment, the tooth pitch of the limit gear 12 is 0.13mm, the meshing sensitivity of the clamping groove 11 and the limit gear 12 is enhanced, and the clamping block 13 is of a rectangular structure.

When the mechanical arm is installed, a fixing bolt is used for fixing through a fixing hole 17 on one side of a fixing piece 18, the height of a mechanical arm body 1 is adjusted according to requirements, an adjusting knob 4 is rotated to drive a threaded rod 5 connected with the adjusting knob to rotate, two movable blocks 8 on the outer side are driven to drive the mechanical arm body 1 connected through a mechanical arm base 9, a large arm joint 10 and a rotating shaft 2 to ascend and descend, finally, the angle of the mechanical arm body 1 is adjusted, a clamping block 13 connected through a movable rod 15 is pulled upwards through a pull ring 3 to move, a clamping groove 11 on one side of the clamping block 13 is separated from a tooth gap of a limiting gear 12, and a reset spring 16 is compressed at, the angle of the mechanical arm body 1 can be rotated, once the mechanical arm body 1 is adjusted to the required angle, the pull ring 3 is loosened, under the elastic force action of the return spring 16, the clamping groove 11 is meshed with the limit gear 12 again to fix the mechanical arm body 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a laparoscopic surgery's arm, includes mounting panel (7), its characterized in that, movable groove (6) have been seted up to one side of mounting panel (7), the inboard of movable groove (6) is rotated and is connected with threaded rod (5), mounting panel (7) fixedly connected with adjust knob (4) are run through to the upper end of threaded rod (5), just the outside symmetrical threaded connection of threaded rod (5) has movable block (8), two the common fixed mounting in one side of movable block (8) has arm base (9), one side fixed mounting of arm base (9) has big arm joint (10), the top of big arm joint (10) is rotated and is connected with pivot (2), the outside fixed mounting of pivot (2) has arm body (1).

2. The mechanical arm for the laparoscopic surgery as claimed in claim 1, wherein fixing pieces (18) are symmetrically and fixedly installed on the front and rear surfaces of the mounting plate (7), and a fixing hole (17) is opened on one side of each fixing piece (18).

3. The mechanical arm for the laparoscopic surgery as claimed in claim 1, wherein a limit gear (12) is sleeved on the outer side of the rotating shaft (2), a groove (14) is formed in one side of the mechanical arm base (9), a movable rod (15) penetrating through the mechanical arm base (9) is arranged inside the groove (14), a clamping block (13) is fixedly connected to the lower end of the movable rod (15), and a clamping groove (11) engaged with the limit gear (12) is formed in one side of the clamping block (13).

4. The mechanical arm for the laparoscopic surgery as claimed in claim 3, wherein a pull ring (3) is fixedly connected to the upper end of the movable rod (15), and a rubber sleeve is sleeved on the outer side of the pull ring (3).

5. The mechanical arm for the laparoscopic surgery as claimed in claim 3, wherein a return spring (16) is sleeved outside the movable rod (15), and both ends of the return spring (16) are respectively and fixedly connected with the fixture block (13) and the mechanical arm base (9).

6. The mechanical arm for the laparoscopic surgery as claimed in claim 3, wherein the spacing between teeth of the limit gear (12) is 0.13mm, and the fixture block (13) has a rectangular structure.