CN213883342U

CN213883342U - Unilateral spreader for spinal surgery

Info

Publication number: CN213883342U
Application number: CN202022715012.6U
Authority: CN
Inventors: 李凤彬; 张帆; 刘姗; 孙胜伟; 张立维; 贾丽娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-08-06
Anticipated expiration: 2030-11-20

Abstract

The utility model discloses a unilateral distracter of spinal surgery usefulness relates to medical instrument technical field. The utility model discloses a two length direction intermediate positions are articulated each other and are used for strutting the formula of cutting that skin tissue struts pole, two prop open pole length direction one end and articulate respectively has a connecting rod, two connecting rod do not be provided with between the joint one with two connecting rods are articulated and are used for adjusting two are cut the formula of cutting and are propped open the adjustment mechanism that the pole propped open the size, two are cut formula and are propped open pole pin joint top and be provided with one and be used for supporting two cut the connecting block of formula pole of opening. The utility model discloses a to strut shearing formula of cutaneous tissue and strut the pole and connect on the connecting block, then the connecting block top is being fixed and is adjusting two vertical adjusting part to the height of strutting the pole, connects vertical adjusting part on fixed subassembly at last, and the regulation of the relative operation position that not only realizes is still to strut shearing formula of cutaneous tissue and is struts the pole and fix and avoid causing the secondary injury to the patient because of the accident rocks.

Description

Unilateral spreader for spinal surgery

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to unilateral spreader of spinal surgery usefulness.

Background

The spine is the backbone of the body; the spine is divided into five sections of neck, chest, waist, sacrum and tail, the upper part is long and can move, and the spine is similar to a bracket and is hung on the chest wall and the abdominal wall; the lower part is short and is relatively fixed; the weight of the body and the shock received by the body are transmitted to the lower limbs; the spine consists of vertebrae and intervertebral discs, and is a relatively soft and movable structure; the shape of the spine can vary considerably with the kinematic loads of the body; the movement of the spine depends on the integrity of the intervertebral discs, the harmony between the articular processes of the relevant vertebrae; with the progress of times and the working pressure of fast pace, the probability of spinal diseases of more and more office families (such as designers, accountants, teachers, doctors and office staff) and personnel who work in the same posture for a long time is obviously higher than that of other occupations; the conservative treatment effect is not ideal, and the operation risk is high because the structure of the spine is complex, the operation space is relatively narrow, and the operation is inconvenient; however, the conventional unilateral distracter is not fixed after the skin tissue is distracted, a doctor needs to take great care in the operation process, and once the distracter is touched, the distracter is possibly separated from the distracted skin tissue due to shaking, so that a patient suffers secondary injury.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: for solving traditional unilateral spreader and strutting its self and lack fixedly after skin tissue struts, the operation in-process main sword doctor needs very carefully, in case the eyelidretractor is touched, most probably breaks away from the skin tissue who struts because of rocking for the patient suffers the problem of secondary injury, the utility model provides a unilateral spreader of spinal surgery usefulness.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a unilateral spreader that spinal surgery used, includes that two length direction intermediate positions are articulated each other and are used for strutting the formula of cutting that skin tissue struts the pole, and the one end along its length direction articulates respectively has a connecting rod, two connecting rod do not be provided with between the junction with two connecting rods articulated and be used for adjusting two cut formula and strut the adjustment mechanism that the pole struts the size, two cut formula and strut the pole pin joint top and be provided with one and be used for supporting two cut the connecting block of formula strut the pole, still include one with the connecting block top is fixed and be used for adjusting two the vertical adjusting part of the vertical direction height of strut the pole and one with vertical adjusting part fixed connection just is used for fixing its fixed subassembly at the operation bed edge.

Furthermore, one end of each of the two scissor-type opening rods, which is far away from the connecting rod, is respectively fixed with a hook which is used for abutting against skin tissues.

Further, adjust the structure include one both ends respectively with two connecting rod not the articulated movable plate of junction and one perpendicular the movable plate just does the movable plate motion provides the guide bar of direction, it has the screw thread to construct on the guide bar, the outside cover of guide bar is equipped with one and is used for conflicting the movable plate lateral wall just forces the movable plate is followed the thread bush of guide bar motion still includes one and is used for connecting the guide bar will the guide bar is fixed dead lever on the connecting block.

Furthermore, the fixing component comprises a clamping component which is clamped on the edge of the operating bed, a vertical supporting bent rod is fixed at the top of the clamping component, a length-adjustable and horizontal three-section telescopic rod is arranged at the non-connecting end of the supporting bent rod, a bearing plate is fixed at one end, far away from the supporting bent rod, of the three-section telescopic rod, and a guide groove is formed in the thickness direction of the bearing plate.

Furthermore, the vertical adjusting component comprises a lead screw which is vertically arranged on the top surface of the connecting block and penetrates through the bearing plate but is not in contact with the bearing plate and a guide rod which is arranged side by side with the lead screw and is matched with the guide groove, a nut which is positioned above the bearing plate is sleeved outside the lead screw, and the nut is used for fixing the lead screw on the bearing plate.

Further, the clamping component include one with support knee fixed connection's fixed block, a spout has been seted up to fixed block thickness direction, the spout inside be provided with one with spout looks adaptation just can follow the gliding slider of spout, still include a bearing and fix slider bottom and threaded connection are in threaded rod on the fixed block.

The utility model has the advantages as follows:

1. the utility model discloses a to strut shearing formula of cutaneous tissue and strut pole fixed connection on the connecting block, then the connecting block top is being fixed and is adjusting two vertical adjusting part to the height of strutting the pole, connects vertical adjusting part on fixed subassembly at last, and the regulation of the relative operation position that not only realizes is still to strut shearing formula of cutaneous tissue and struts the pole and fix and avoid causing the secondary injury to the patient because of the accident rocks.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is an enlarged view of the point A of FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the point B of FIG. 1 according to the present invention;

reference numerals: 1. a scissor-type opening lever; 11. hooking; 2. a connecting rod; 3. an adjustment mechanism; 31. moving the plate; 32. a guide bar; 33. A threaded sleeve; 34. fixing the rod; 4. connecting blocks; 5. a vertical adjustment assembly; 51. a screw rod; 52. a guide bar; 53. a nut; 6. a fixing assembly; 61. a clamping assembly; 611. a fixed block; 612. a chute; 613. a slider; 614. a threaded rod; 62. supporting the bent rod; 63. Three-section telescopic rods; 64. a carrier plate; 65. and a guide groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

As shown in figures 1, 2 and 3, a unilateral spreader for spinal surgery comprises two scissor-type spreader bars 1 hinged to each other at the middle position in the length direction and used for spreading skin tissues, connecting bars 2 hinged to one end in the length direction, an adjusting mechanism 3 hinged to the two connecting bars 2 and used for adjusting the spreading size of the two scissor-type spreader bars 1 and arranged between the unconnected ends of the two connecting bars 2, a connecting block 4 used for supporting the two scissor-type spreader bars 1 and arranged above the hinged point of the two scissor-type spreader bars 1, a cylindrical bar constructed at the bottom of the connecting block 4 and used for hinging the scissor-type spreader bars 1 with each other, and the scissor-type spreader bars 1 hinged to the connecting block 4, a vertical adjusting assembly 5 fixed to the top of the connecting block 4 and used for adjusting the vertical height of the two scissor-type spreader bars 1, and a fixing assembly 6 fixedly connected to the vertical adjusting assembly 5 and used for fixing the vertical adjusting assembly 5 to the edge of a surgical bed, in some embodiments, the scissors-type opening rods 1 for opening the skin tissue are fixedly connected to the connecting block 4, then the vertical adjusting assemblies 5 for adjusting the vertical heights of the two opening rods are fixed above the connecting block 4, and finally the vertical adjusting assemblies 5 are connected to the fixing assemblies 6, so that the scissors-type opening rods 1 for opening the skin tissue are fixed to avoid secondary injury to a patient due to accidental shaking, when the scissors-type opening rod is used, the fixing assemblies 6 are firstly fixed to the edge of an operating bed, then the vertical heights of the scissors-type opening rods 1 are adjusted through the vertical adjusting assemblies 5 until the scissors-type opening rods 1 just can open the skin tissue, and other places of the patient are avoided being contacted, and then the adjusting mechanisms 3 are adjusted to enable the scissors-type opening rods 1 to be opened to proper openings, so that an operation can be performed.

As shown in fig. 1 and 4, a hook 11 for abutting against skin tissue is fixed at one end of each of the two scissor-type opening bars 1 away from the connecting bar 2.

As shown in fig. 1 and 4, the adjusting mechanism 3 includes a moving plate 31 whose two ends are respectively hinged to the unconnected ends of the two connecting rods 2, a guide rod 32 which is perpendicular to the moving plate 31 and provides a guide for the moving plate 31 to move, a thread is configured on the guide rod 32, a thread bushing 33 which is used for abutting against the side wall of the moving plate 31 and forcing the moving plate 31 to move along the guide rod 32 is sleeved outside the guide rod 32, and a fixing rod 34 which is used for connecting the guide rod 32 and fixing the guide rod 32 on the connecting block 4, when the opening size of the scissors-type opening rod 1 needs to be adjusted, we rotate the thread bushing 33 to move along the guide rod 32, at this time, the moving plate 31 drives the connecting rod 2 to open left and right under the interference of the thread bushing 33, the scissors-type opening rod 1 hinged to the connecting rod 2 correspondingly opens, and drives the hook 11 on the skin tissue to open until a proper position, the skin tissue is hung on the hook 11.

As shown in fig. 1 and 2, the fixing assembly 6 includes a clamping assembly 61 clamped on the edge of the operating bed, a vertical supporting bent rod 62 is fixed on the top of the clamping assembly 61, a length-adjustable and horizontal three-section telescopic rod 63 is arranged at the non-connecting end of the supporting bent rod 62, a bearing plate 64 is fixed at one end of the three-section telescopic rod 63 far away from the supporting bent rod 62, a guide slot 65 is formed in the thickness direction of the bearing plate 64, when the horizontal length of the scissors-type opening rod 1 needs to be adjusted, the fixing assembly 6 is fixed behind the edge of the operating bed, and the three-section telescopic rod 63 is pulled to reach a proper length.

As shown in fig. 1 and 3, the vertical adjustment assembly 5 includes a screw rod 51 vertically disposed on the top surface of the connection block 4 and penetrating through the bearing plate 64 without contacting with the bearing plate 64, and a guide rod 52 disposed side by side with the screw rod 51 and matching with the guide groove 65, a nut 53 disposed above the bearing plate 64 is sleeved outside the screw rod 51, the nut 53 is used to fix the screw rod 51 on the bearing plate 64, when the vertical relative height of the scissor-type opening rod 1 needs to be adjusted, the nut 53 is rotated to enable the screw rod 51 to vertically move upwards or downwards so as to adjust the vertical relative height of the scissor-type opening rod 1, and the guide rod 52 is a square rod, and the guide rod is matched with the guide groove 65 to enable the scissor-type opening rod 1 not to shake when moving vertically.

As shown in fig. 1 and 4, the clamping assembly 61 includes a fixing block 611 fixedly connected to the support curved rod 62, a sliding slot 612 is formed in the fixing block 611 in the thickness direction, a sliding block 613 adapted to the sliding slot 612 and capable of sliding along the sliding slot 612 is disposed inside the sliding slot 612, and a threaded rod 614 fixed to the bottom of the sliding block 613 and threadedly connected to the fixing block 611 is further included, when the device needs to be fixed to the surgical bed edge, the threaded rod 614 is rotated to drive the sliding block 613 to cooperate with the fixing block 611 to clamp the surgical bed edge.

Claims

1. A unilateral distracter for spinal surgery is characterized by comprising two scissor-type distracting rods (1) which are hinged with each other in the middle position in the length direction and are used for distracting skin tissues, one end in the length direction is respectively hinged with a connecting rod (2), an adjusting mechanism (3) which is hinged with the two connecting rods (2) and is used for adjusting the distraction size of the two scissor-type distracting rods (1) is arranged between the unconnected ends of the two connecting rods (2), the two scissors-type opening rods (1) are connected with each other through a hinge point, a connecting block (4) used for supporting the two scissors-type opening rods (1) is arranged above the hinge point of the two scissors-type opening rods (1), the two scissors-type opening rods further comprise a vertical adjusting component (5) fixed to the top of the connecting block (4) and used for adjusting the two scissors-type opening rods (1) vertically to the height, and a fixing component (6) fixedly connected with the vertical adjusting component (5) and used for fixing the same on the edge of an operating bed.

2. The unilateral spreader for spinal surgery according to claim 1, wherein one end of each of the two scissor-type spreader bars (1) away from the connecting bar (2) is fixed with a hook (11) for abutting against the skin tissue.

3. The unilateral distractor for spinal surgery according to claim 1, wherein the adjusting mechanism (3) comprises a moving plate (31) with two ends hinged to the unconnected ends of the two connecting rods (2), a guiding rod (32) perpendicular to the moving plate (31) and guiding the moving plate (31) to move, threads are formed on the guiding rod (32), a threaded sleeve (33) for abutting against the side wall of the moving plate (31) and forcing the moving plate (31) to move along the guiding rod (32) is sleeved outside the guiding rod (32), and a fixing rod (34) for connecting the guiding rod (32) and fixing the guiding rod (32) on the connecting block (4).

4. The unilateral distractor for spinal surgery according to claim 1, wherein the fixing component (6) comprises a clamping component (61) clamped at the edge of the operating bed, a vertical supporting bent rod (62) is fixed at the top of the clamping component (61), a non-connecting end of the supporting bent rod (62) is provided with a three-section telescopic rod (63) with adjustable length and horizontal direction, one end of the three-section telescopic rod (63) far away from the supporting bent rod (62) is fixed with a bearing plate (64), and a guide groove (65) is formed in the thickness direction of the bearing plate (64).

5. The unilateral distractor for spinal surgery according to claim 4, wherein the vertical adjustment assembly (5) comprises a lead screw (51) vertically disposed on the top surface of the connecting block (4) and penetrating through the bearing plate (64) but not contacting the bearing plate (64), and a guide rod (52) disposed side by side with the lead screw (51) and adapted to the guide groove (65), wherein a nut (53) disposed above the bearing plate (64) is sleeved on the lead screw (51), and the nut (53) is used for fixing the lead screw (51) on the bearing plate (64).

6. The unilateral distractor of claim 4, wherein the clamping assembly (61) comprises a fixed block (611) fixedly connected with the support curved bar (62), a sliding slot (612) is formed in the fixed block (611) in the thickness direction, a sliding block (613) adapted to the sliding slot (612) and capable of sliding along the sliding slot (612) is disposed inside the sliding slot (612), and the unilateral distractor further comprises a threaded rod (614) fixed at the bottom of the sliding block (613) and screwed to the fixed block (611).