CN218391174U

CN218391174U - A strut equipment for posterior fossa operation

Info

Publication number: CN218391174U
Application number: CN202221538030.4U
Authority: CN
Inventors: 李猛; 陈宏璘; 徐进
Original assignee: Suqian First Hospital
Current assignee: Suqian First Hospital
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2023-01-31
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a strut equipment for back cranial fossa operation, including the frame, its characterized in that: the frame is circular structure, and the frame includes a plurality of interconnect's bracing piece, is equipped with a plurality of evenly distributed's traction mechanism on the frame. The equipment frame makes up into wholly through multi-structure connected mode for the joint can move about, through making the sufficient fit clearance that has of joint point, thereby let the frame of equipment can carry out nimble activity, better laminating operation position, and simultaneously, set up traction mechanism, traction mechanism's adjustability and built-up mounting nature can cooperate the frame to carry out nimble adjustment to the incision, let the incision strut the even atress of in-process, the better operation field of vision that exposes, and then let equipment more practical.

Description

A strut equipment for posterior fossa operation

Technical Field

The utility model relates to a strut ware technical field especially relates to an equipment of strutting for operation of back cranial fossa.

Background

The spreader is a common surgical instrument for neurosurgery and is used for spreading skin muscles and exposing an operation visual field, particularly the application in posterior fossa operation, the posterior fossa is connected with the neck, the fat of the neck muscle is thick, and the skull is in an inward concave state, so that the skin muscles of the posterior fossa are in an uneven state of thick proximal end and thin distal end, and the current common clinical spreader is single-tooth and fixed-tooth-length and cannot effectively spread and expose the operation visual field.

SUMMERY OF THE UTILITY MODEL

The utility model provides a strutting device for posterior fossa operation, which solves the technical problem of the strutting device for the posterior fossa operation.

In order to solve the technical problem, the utility model provides a pair of a distraction equipment for posterior fossa operation, which comprises a frame, the frame is circular structure, the frame includes a plurality of interconnect's bracing piece, be equipped with a plurality of evenly distributed's tractive mechanism on the frame.

Further, the traction mechanism includes the function seat, the inside interlude of function seat is equipped with the threaded rod rather than threaded connection, the one end of threaded rod is equipped with the fixed block, the fixed block with be equipped with rotatory piece between the threaded rod, the inside of rotatory piece be equipped with threaded rod fixed connection's dwang, the inside interlude of fixed block is equipped with the drag hook, one side of fixed block be equipped with the piece is screwed up to drag hook matched with screw thread.

Further, the cross-section of the rotating rod is T-shaped, and the threaded rod is close to the annular equidistant distribution of one end of the fixed block and is provided with screwing pieces.

Furthermore, the bottom end of the function seat is provided with a buckle matched with the frame, and the buckle is fixedly connected with the function seat through threads.

Furthermore, the number of the traction mechanisms is at least 2, and every two traction mechanisms are symmetrically distributed for use.

Furthermore, every two support rods are connected through a movable joint, wherein the movable joint is fixed on one support rod and movably connected with the other support rod.

Compared with the prior art, the utility model provides a strutting equipment for posterior fossa operation has following beneficial effect: the equipment frame makes up into wholly through multi-structure connected mode for the joint can move about, through making the sufficient fit clearance that has of joint point, thereby let the frame of equipment can carry out nimble activity, better laminating operation position, and simultaneously, set up traction mechanism, traction mechanism's adjustability and built-up mounting nature can cooperate the frame to carry out nimble adjustment to the incision, let the incision strut the even atress of in-process, the better operation field of vision that exposes, and then let equipment more practical.

Drawings

FIG. 1 is a schematic structural view of a distraction device for posterior fossa surgery;

FIG. 2 is a schematic structural view of a frame of a distraction device for posterior fossa surgery;

FIG. 3 is a schematic structural view of a pulling mechanism of the distraction device for posterior fossa surgery;

FIG. 4 is a schematic view of the mating structure of the functional block and threaded rod of the distraction device for posterior fossa surgery;

fig. 5 is a schematic view of the matching structure of the fixing block and the drag hook of the distraction device for posterior fossa surgery.

Reference numbers in the figures: 1. a frame; 2. a support bar; 3. a pulling mechanism; 4. a functional seat; 5. a threaded rod; 6. a fixed block; 7. rotating the block; 8. pulling a hook; 9. a screw tightening block; 10. screwing the sheet; 11. buckling; 12. and rotating the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Given by fig. 1-3, the utility model discloses, including frame 1, frame 1 is circular structure, frame 1 includes a plurality of interconnect's bracing piece 2, be equipped with a plurality of evenly distributed's tractive mechanism 3 on the frame 1, tractive mechanism 3 includes function seat 4, the inside interlude of function seat 4 is equipped with threaded rod 5 rather than threaded connection, the one end of threaded rod 5 is equipped with fixed block 6, fixed block 6 with be equipped with rotatory piece 7 between the threaded rod 5, the inside of rotatory piece 7 be equipped with threaded rod 5 fixed connection's dwang 12, the inside interlude of fixed block 6 is equipped with drag hook 8, one side of fixed block 6 be equipped with drag hook 8 matched with screw thread tightens piece 9.

As shown in fig. 1 to 4, in the embodiment of the present application, the cross-section of the rotating rod 12 is T-shaped, the threaded rod 5 is close to the annular equidistant distribution of one end of the fixed block 6 and is provided with a screwing piece 10, the bottom end of the functional seat 4 is provided with a buckle 11 matched with the frame 1, and the buckle 11 is fixedly connected with the functional seat 4 through threads.

From above-mentioned design it is not difficult to see, buckle 11 joint is on frame 1, it is supported and fixed, it is rotatory that it is used for making things convenient for control threaded rod 5 to revolve wrong piece 10, and because the T shape structure of dwang 12, and great port joint is in rotatory piece 7, and simultaneously, because the rotary rod alternates to get into in rotatory piece 7 and block by great port, when revolving wrong piece 10 and driving threaded rod 5 and rotary rod and rotate, can not drive fixed block 6 and rotate, specific difference along with the shrink of threaded rod 5, it can regard as two fixed stress points to revolve wrong piece 10 and the skin muscle of incision department, and increase gradually revolves the cooperation frictional force of revolving the pole and revolving between the piece, make in the use, fixed block 6 also can not produce the activity and rotate.

As shown in fig. 1 to 5, in the specific embodiment of the present application, the number of the pulling mechanisms 3 is at least 2, two pulling mechanisms 3 are symmetrically distributed and used, and two supporting rods 2 are connected by a movable joint, wherein the movable joint is fixed on one of the supporting rods 2 and movably connected with the other supporting rod 2.

As can be seen from the above design, because the movable frame 1 is formed by connecting a plurality of combinations, the frame 1 can move in a certain range through the movable joints, and the size of the movable range is the fit clearance of the movable joints;

after the incision of the posterior fossa is cut, after the traction mechanism 3 is connected with the frame 1, the length of the draw hook 8 is adjusted according to the incision depth, the draw hook 8 is placed into the incision, the draw hook 8 is usually used in pairs, 2-6 draw hooks are generally used according to conditions at each time, the draw hooks are symmetrically distributed, the screwing pieces 10 are screwed, the screwing pieces 10 drive the threaded rod 5 to rotate, along with the rotation of the threaded rod 5, the threaded rod 5 can be contracted to enter the functional seat 4 or be separated from the functional seat 4, and therefore the draw hook 8 is driven to move, fully pulled open and expose the incision.

In addition, length can be put into according to incision degree of depth independent adjustment to every drag hook 8, and the elasticity that every drag hook 8 can adjust alone and strut, and the operation field of vision that exposes that can be better, and make the even atress of incision.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A distraction device for posterior fossa surgery, comprising a frame (1), characterized in that: the frame (1) is of a circular structure, the frame (1) comprises a plurality of supporting rods (2) which are connected with each other, and a plurality of uniformly distributed traction mechanisms (3) are arranged on the frame (1);

traction mechanism (3) are including function seat (4), the inside interlude of function seat (4) is equipped with threaded rod (5) rather than threaded connection, the one end of threaded rod (5) is equipped with fixed block (6), fixed block (6) with be equipped with rotatory piece (7) between threaded rod (5), the inside of rotatory piece (7) be equipped with threaded rod (5) fixed connection's dwang (12), the inside interlude of fixed block (6) is equipped with drag hook (8), one side of fixed block (6) be equipped with block (9) are screwed up to drag hook (8) matched with screw thread.

2. The distraction device according to claim 1, characterized in that said rotating rod (12) has a T-shaped section, and in that said threaded rod (5) has a threaded tab (10) annularly and equidistantly distributed at one end close to said fixed block (6).

3. The distraction device for posterior fossa surgery according to claim 2, wherein the bottom end of the functional seat (4) is provided with a buckle (11) cooperating with the frame (1), and the buckle (11) and the functional seat (4) are fixedly connected by screw thread.

4. Distraction device for posterior fossa surgery according to claim 3, wherein the number of said distraction mechanisms (3) is at least 2 and two of said distraction mechanisms (3) are used symmetrically.

5. Distraction device according to claim 4, characterized in that two of said support rods (2) are connected by a movable joint, wherein said movable joint is fixed to one of said support rods (2) and is movably connected to the other support rod (2).