CN217138135U

CN217138135U - Spine distractor convenient for adjusting distance

Info

Publication number: CN217138135U
Application number: CN202123206723.1U
Authority: CN
Inventors: 徐荣光
Original assignee: Jiangsu Huigu Medical Devices Co ltd
Current assignee: Jiangsu Huigu Medical Devices Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-08-09
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a backbone struts ware convenient to adjustment distance, including strutting the ware main part, it includes mutual articulated left side distraction pole and right side distraction pole to strut the ware main part, left side distraction pole and right side distraction pole rotate through the round pin axle and connect and constitute the formula of cutting structure, the bar recess has all been seted up along length direction to the lower extreme of left side distraction pole and the upper end of right side distraction pole, two bar recess one side inner wall fixed mounting in opposite directions have the rack, be equipped with apart from adjustment mechanism between two bar recesses, the equal fixed mounting in top of left side distraction pole and right side distraction pole has the spliced pole, the tip of two spliced poles is fixed mounting respectively has left side distraction board and right side distraction board. The utility model discloses a distance adjustment mechanism makes left spreader plate and right spreader plate strut suitable distance, is convenient for strut the wound to fix left spreader bar and right spreader bar through the locking subassembly, can not plug up the operation field of vision, and make things convenient for the operation of surgical instruments, simple structure, convenient operation.

Description

Spine distractor convenient for adjusting distance

Technical Field

The utility model relates to the technical field of medical equipment, specifically be convenient for the backbone of adjusting distance struts ware.

Background

When a spine operation is performed on a patient in a hospital, back muscles need to be propped open to expose an operation area, and the intractable pain of the patient after the operation is caused by large-scale stripping and pulling of paraspinal muscles in the traditional operation. With the progress of the technology, the muscle clearance approach operation is adopted more and more at present, the muscle is not widely stripped, the operation type has less bleeding and less tissue separation, and the minimally invasive operation concept is met. For developing the operation smoothly, need neotype surgical instruments in order to reach the effect of effectively strutting, the utility model patent that application number is CN201920625324.2 has proposed medical spinal surgery struts the ware, should strut the ware and have following defect: 1. the spreader is provided with three spreading blades, the surgical incision is usually in a straight shape, the three spreading blades are inconvenient to spread, the wound is easy to further hurt, the pain of a patient is increased, and the wound is not easy to heal after the surgery; 3. the upper side structure of the expanding blade of the expander is complex, and the operation field of an operation and the operation of an operation instrument are usually blocked; 2. complicated structure and inconvenient use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a backbone struts ware convenient to adjustment distance to solve the problem of proposing among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: spine struts ware convenient to adjustment distance, including strutting the ware main part, it includes mutual articulated left side opening rod and right side opening rod to strut the ware main part, left side opening rod and right side opening rod rotate through the round pin axle and connect and constitute the formula of cutting structure, the bar recess has all been seted up along length direction to the lower extreme of left side opening rod and the upper end of right side opening rod, two bar recess one side inner wall fixed mounting in opposite directions has the rack, two be equipped with apart from adjustment mechanism between the bar recess, the equal fixed mounting in top of left side opening rod and right side opening rod has the spliced pole, two the tip of spliced pole is fixed mounting respectively has left side opening plate and right side opening plate.

Further, apart from adjustment mechanism includes the fly leaf, the front side of strutting the ware main part is located to the fly leaf, set up the regulation chamber that link up from top to bottom on the fly leaf, the both ends of adjusting the chamber all run through and are equipped with the removal post, the top of removing the post is fixed with the stopper, the lower extreme of removing the post rotates and installs the walking gear, the walking gear is connected with rack and pinion meshing, and two remove the first spring of fixedly connected with between the post, run through on the stopper and be equipped with the locking subassembly.

Furthermore, one side fixed mounting that the spreader main part was kept away from to the fly leaf has manual buckle, the top of manual buckle is the arc, the surface of manual buckle is equipped with anti-skidding line.

Further, the bottom fixedly connected with slider of removal post, the spout with slider looks adaptation is seted up to the inboard bottom of bar recess.

Further, the locking subassembly includes the locking pole, the middle part of locking pole is equipped with screw thread portion, set up the screw hole with screw thread portion looks adaptation in the stopper, the lower extreme of locking pole runs through stopper and fixed mounting has the limiting plate, be connected with the second spring between limiting plate and the stopper, a plurality of locking hole has evenly been seted up along circumference to the up end of walking gear.

Furthermore, a third spring is fixedly connected between the lower end of the left opening rod and the lower end of the right opening rod.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model discloses a distance adjustment mechanism drags the fly leaf, makes the fly leaf move in left spreader bar and right spreader bar upper end, and at this moment, the fly leaf drives the removal post and removes in the bar recess, and then guarantees two removal post synchronous motion through walking wheel and rack toothing, and when the distance between left spreader bar and the right spreader bar increases, two removal posts moved in opposite directions this moment, then first spring is compressed, makes to adjust to suitable distance between left spreader bar and the right spreader bar, and then makes left spreader plate and right spreader plate strut suitable distance;

2. the utility model discloses the locking subassembly, with the locking pole screw in threaded hole downwards, pass the screw hole until screw thread portion, then under the effort of second spring, the limiting plate drives the locking pole and inserts in the locking hole to it is fixed to remove the post, makes the distance between left side spreader bar and the right side spreader bar keep unchangeable, and then guarantees that the position of left side spreader plate and right side spreader plate is unchangeable, can not plug up the operation field of vision, and makes things convenient for the operation of surgical instruments, the going on of the operation of being convenient for.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 3 is a sectional view of the distance adjustment mechanism of the present invention;

FIG. 4 is an enlarged schematic view of the structure of the utility model at B in FIG. 3;

fig. 5 is a top assembly view of the locking lever and walking gear of the present invention;

in the figure: 1. a left spreader bar; 2. a right spreader bar; 3. a strip-shaped groove; 4. a rack; 5. a distance adjusting mechanism; 51. a movable plate; 52. an adjustment chamber; 53. moving the column; 54. a limiting block; 55. a traveling gear; 56. a first spring; 57. a locking assembly; 571. a lock lever; 572. a threaded portion; 573. a limiting plate; 574. a second spring; 575. a locking hole; 58. a slider; 59. a chute; 6. connecting columns; 7. a left spreader plate; 8. a right spreader plate; 9. and a third spring.

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. 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.

Referring to fig. 1 to 5, the present invention provides a spine spreader convenient for adjusting a distance, which includes a spreader body, the spreader main body comprises a left spreading rod 1 and a right spreading rod 2 which are hinged with each other, the left spreading rod 1 and the right spreading rod 2 are rotationally connected through a pin shaft to form a scissor structure, the lower end of the left opening rod 1 and the upper end of the right opening rod 2 are both provided with a strip-shaped groove 3 along the length direction, a rack 4 is fixedly arranged on the inner wall of one side of each strip-shaped groove 3, a distance adjusting mechanism 5 is arranged between the two strip-shaped grooves 3, the tops of the left opening rod 1 and the right opening rod 2 are both fixedly provided with connecting columns 6, the end parts of the two connecting columns 6 are respectively and fixedly provided with a left opening plate 7 and a right opening plate 8, by rotating the left spreader lever 1 and the right spreader lever 2, the distance between the left spreader plate 7 and the right spreader plate 8 is changed.

In a preferred embodiment, the distance adjusting mechanism 5 includes a movable plate 51, the movable plate 51 is disposed at the front side of the distractor body, the movable plate 51 is provided with an adjusting cavity 52 which is vertically through, two ends of the adjusting cavity are respectively provided with a moving column 53 through, a limiting block 54 is fixed at the top of the moving column 53, the lower end of the moving column 53 is rotatably provided with a traveling gear 55, the traveling gear 55 is engaged with the rack 4, a first spring 56 is fixedly connected between the two moving columns 53, a locking component 57 is provided on the limiting block 54 through, the movable plate 51 is dragged to move the movable plate 51 at the upper ends of the left distraction rod 1 and the right distraction rod 2, at this time, the movable plate 51 drives the moving column 53 to move in the bar-shaped groove 3, then the two moving columns 53 are ensured to synchronously move through the engagement of the traveling gear 55 and the rack 4, when the distance between the left distraction rod 1 and the right distraction rod 2 increases, at this time, the two movable columns 53 are moved toward each other, and then the first spring 56 is compressed, so that the movable columns 53 are fixed by the locking assembly 57 after the left and right

opening bars

1 and 2 are adjusted to a suitable distance.

In a preferred embodiment, the movable plate 51 is far away from one side of the distractor body and is fixedly provided with a manual buckle plate 510, the top of the manual buckle plate 510 is arc-shaped, the outer surface of the manual buckle plate 510 is provided with anti-slip lines, the movable plate 51 is driven to move through the manual buckle plate 510, and the anti-slip lines are arranged to prevent slipping.

In a preferred embodiment, a sliding block 58 is fixedly connected to the bottom of the moving column 53, a sliding groove 59 matched with the sliding block 58 is formed in the bottom of the inner side of the strip-shaped groove 3, and the moving column 53 is more stable when moving due to the matching of the sliding block 58 and the sliding groove 59.

In a preferred embodiment, the locking assembly 57 comprises a locking rod 571, a threaded portion 572 is provided at the middle of the locking rod 571, a threaded hole matched with the threaded part 572 is formed in the limit block 54, the lower end of the locking rod 571 penetrates through the limit block 54 and is fixedly provided with a limit plate 573, a second spring 574 is connected between the limit plate 573 and the limit block 54, a plurality of locking holes 575 are uniformly formed in the upper end surface of the traveling gear 55 along the circumferential direction, the locking rod 571 is screwed downwards into the threaded hole until the threaded portion 572 passes through the threaded hole, then, under the action of the second spring 574, the limit plate 573 drives the locking rod 571 to be inserted into the locking hole 575, thereby will remove the post 53 fixed, make the distance between left spreader bar 1 and the right spreader bar 2 keep unchangeable, and then guarantee that the position of left spreader plate 7 and right spreader plate 8 is unchangeable, the operation of being convenient for goes on.

In a preferred embodiment, a third spring 9 is fixedly connected between the lower end of the left spreader lever 1 and the lower end of the right spreader lever 2, and the third spring 9 helps to restore the left spreader lever 1 and the right spreader lever 2 after the operation is completed.

The utility model discloses a theory of operation: the distance between the left opening plate 7 and the right opening plate 8 is changed by rotating the left opening rod 1 and the right opening rod 2, then the movable plate 51 is dragged to enable the movable plate 51 to move at the upper ends of the left opening rod 1 and the right opening rod 2, at the moment, the movable plate 51 drives the movable columns 53 to move in the strip-shaped grooves 3, then the two movable columns 53 are enabled to move synchronously by meshing the walking gears 55 and the racks 4, when the distance between the left opening rod 1 and the right opening rod 2 is increased, at the moment, the two movable columns 53 move oppositely, then the first spring 56 is compressed, the left opening rod 1 and the right opening rod 2 are adjusted to be at a proper distance, and the left opening plate 7 and the right opening plate 8 are further opened by a proper distance; then with locking pole 571 screw in threaded hole down, until screw thread portion 572 passes the screw hole, then under the effort of second spring 574, limiting plate 573 drives locking pole 571 and inserts in locking hole 575 to it is fixed to remove post 53, make the distance between left spreader lever 1 and the right spreader lever 2 keep unchangeable, and then guarantee that the position of left spreader plate 7 and right spreader plate 8 is unchangeable, can not block up the operation field of vision, and make things convenient for the operation of surgical instruments, moreover, the steam generator is simple in structure, and is convenient for operate.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Spinal column struts ware convenient to adjustment distance, including strutting the ware main part, its characterized in that: strut the ware main part and include that each other articulated a left side struts pole (1) and right side and strut pole (2), a left side struts pole (1) and right side and struts pole (2) and rotate through the round pin axle and connect and constitute scissor structure, bar groove (3), two have all been seted up along length direction to the lower extreme of a left side strut pole (1) and the upper end of right side strut pole (2) one side inner wall fixed mounting in opposite directions of bar groove (3) has rack (4), two be equipped with apart from adjustment mechanism (5) between bar groove (3), the equal fixed mounting in top of a left side strut pole (1) and right side strut pole (2) has spliced pole (6), two the tip of spliced pole (6) is fixed mounting respectively has a left side to strut board (7) and right side to strut board (8).

2. A spinal distractor to facilitate distance adjustment according to claim 1, wherein: distance adjustment mechanism (5) are including fly leaf (51), the front side of struts the ware main part is located in fly leaf (51), set up regulation chamber (52) that link up from top to bottom on fly leaf (51), the both ends of adjusting the chamber all run through and are equipped with removal post (53), the top of removing post (53) is fixed with stopper (54), the lower extreme of removing post (53) is rotated and is installed walking gear (55), walking gear (55) are connected with rack (4) meshing, and two first spring (56) of fixedly connected with between removal post (53), run through on stopper (54) and be equipped with locking subassembly (57).

3. A spinal distractor to facilitate distance adjustment according to claim 2, wherein: one side fixed mounting that the distractor main part was kept away from in fly leaf (51) has manual buckle (510), the top of manual buckle (510) is the arc, the surface of manual buckle (510) is equipped with anti-skidding line.

4. A spinal distractor to facilitate distance adjustment according to claim 2, wherein: the bottom of the movable column (53) is fixedly connected with a sliding block (58), and the bottom of the inner side of the strip-shaped groove (3) is provided with a sliding groove (59) matched with the sliding block (58).

5. A spinal distractor to facilitate distance adjustment according to claim 2, wherein: the locking assembly (57) comprises a locking rod (571), a threaded portion (572) is arranged in the middle of the locking rod (571), a threaded hole matched with the threaded portion (572) is formed in the limiting block (54), a limiting plate (573) is fixedly installed at the lower end of the locking rod (571) and penetrates through the limiting block (54), a second spring (574) is connected between the limiting plate (573) and the limiting block (54), and a plurality of locking holes (575) are uniformly formed in the upper end face of the walking gear (55) along the circumferential direction.

6. A spinal distractor to facilitate distance adjustment according to claim 1, wherein: and a third spring (9) is fixedly connected between the lower end of the left opening rod (1) and the lower end of the right opening rod (2).