CN210009109U

CN210009109U - Auxiliary expanding device for spinal microscope operation

Info

Publication number: CN210009109U
Application number: CN201920469924.4U
Authority: CN
Inventors: 黄爱兵; 姜磊; 陈晓燕; 梅小亮; 刘欢; 白萌
Original assignee: Taizhou Peoples Hospital
Current assignee: Taizhou Peoples Hospital
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-02-04
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a spinal microscope operation auxiliary expanding device, belonging to the technical field of medical instruments, which comprises a fixed arm and an expandable part, wherein the expandable part comprises a side baffle and a hook-shaped part, the hook-shaped part is used for fixing the midline side, and the side baffle is used for opening the paraspinal muscle tissue; the expandable part is connected with the tail end of the fixed arm, a slidable module and a limit retraction device are arranged on the fixed arm on one side, the slidable module is connected with the rotary wrench, and the rotary wrench drives the slidable module to move on the fixed arm to achieve the purpose of opening so as to obtain the best operation visual field. The device has the advantages of reducing tissue damage and avoiding the shielding of the operation visual field.

Description

Auxiliary expanding device for spinal microscope operation

Technical Field

The utility model belongs to the technical field of medical instrument, further belong to orthopedics apparatus technical field, concretely relates to supplementary extension fixture for assisting spinal microscope operation.

Background

In recent years, surgical microscopes special for the spine and related operation techniques have been developed rapidly, and surgical treatment of degenerative diseases of the cervical and lumbar vertebrae using the microscopes is more and more favored by surgeons. The technique has the advantages of small incision, clear operative field, small tissue wound, rapid postoperative recovery, etc.

The microscope assisted surgery for treating lumbar degenerative disease is a more mature minimally invasive surgery in recent years. Decompression operation is carried out under a microscope, the positions of the dura mater sac, the nerve roots and the nerve root outlet holes can be clearly displayed, and contralateral tissue structures can be displayed through light and posture change, so that decompression is carried out on contralateral vertebral canals. Excessive incision, stripping and traction of the paraspinal muscles are avoided in operation, and iatrogenic muscle injury is effectively reduced. Meanwhile, most vertebral plate, spinous process and interspinous ligament complex can be reserved, iatrogenic injury is reduced, stability of the spine is maintained, and postoperative rehabilitation of patients is facilitated. Under the conditions of microscope amplification and cold light source irradiation, an operator can clearly identify the anatomical structure of an operation area, reduce intraoperative hemorrhage and avoid the damage of important tissue structures such as nerves, however, the technology has the defects of small skin incision, limited operation visual field and limited operation space, and currently, a special operation channel is clinically lacked.

Disclosure of Invention

To the problem, an object of the utility model is to provide an expansion device is assisted in spinal microscope operation, reduction tissue damage that can furthest provides sufficient operating space for the operation doctor, can satisfy the needs that change the operation direction at any time in the art simultaneously, is favorable to better carrying out spinal microsurgery.

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

the utility model provides a spinal microscope operation assists expansion device, comprises slide rail, fixed arm, sliding arm and expandable part, fixed arm fixed sleeve locate slide rail one end, the sliding arm cover locate on the slide rail, the end of fixed arm and sliding arm be connected through rectangular channel one with expandable part respectively, expandable part constitute by baffle and hook-shaped part, be equipped with slidable module and restriction and roll back the device on the sliding arm, slidable module slide on the slide rail through gear structure to be connected through interior hexagonal tooth's socket structure with rotatory spanner, drive the slidable module through rotatory spanner and move on the fixed arm and reach the purpose of strutting, in order to obtain best operation field of vision, restrict simultaneously and roll back the latch of device and the tooth's socket of slide rail and interlock, can restrict the slidable module and roll back, maintain the operation field of vision.

The upper end of baffle design into rectangle hollow structure, conveniently the cover is located on the fixed arm, the other end of baffle designs into rectangle dentate structure to the radian at certain angle extends to the outside.

The upper end of the hook-shaped part is provided with a baffle plate which has the same rectangular hollow structure and is sleeved on the sliding arm, and the other end of the hook-shaped part is of a round hook-shaped structure.

In order to facilitate accurate positioning in the operation, the expandable parts are all made of carbon fiber materials.

The fixed arm and the sliding arm are respectively sleeved on the sliding rail through rectangular grooves.

The fixed arm is provided with a bayonet and can be connected with a snake-shaped arm which is clinically universal.

The utility model has the advantages that:

1. the utility model discloses an expansible part is terminal to be connected through the rectangular channel structure respectively with fixed arm and slide arm to convenient baffle and the hook-shaped part of change equidimension not in the art, it is stable through the rectangular channel structural connection, expansible part is rotatory on the fixed arm when preventing to strut.

2. The side baffle of the expandable component is composed of blade-shaped structures with different heights and widths, and one end of the baffle is designed into a rectangular hollow structure, so that a fixed arm is conveniently sleeved in the operation for assembly. The height of baffle by can designing into different specifications to satisfy the needs of different incision degree of depth and length in the art, the baffle both sides are the arc design, and the dentate structure is designed into to the bottom, and extends to the outside with certain radian, has the characteristics that prevent the baffle to the superficial roll-off.

3. The hook-shaped part of the expandable part, the connecting end and the baffle have the same rectangular hollow structure and are unfolded into two shapes to avoid blocking the visual field, one type is a rectangular structure, the outer side of the hook-shaped part is provided with a tooth-shaped structure, and the other type is a circular hook-shaped structure, and the hook-shaped part also has the functions of stably unfolding and preventing slipping.

4. The sliding arm is provided with a slidable module and a limit retraction device, the sliding module is driven to accurately move on the fixed arm by rotating a wrench in the operation, the defect of insufficient distraction is avoided, and an operation space can be obtained to a large extent.

5. The baffle plate and the hook-shaped part of the expandable part are both made of carbon fiber materials, X rays can penetrate in the operation, the shielding effect in the positioning process in the operation is avoided, and the positioning error of the operation section is prevented.

6. The fixing arm is provided with a bayonet which can be connected with a snake-shaped arm which is clinically universal, so that a better stabilizing effect is obtained during certain special operations, and the effect of firmly maintaining a specific visual field after the angle of a channel needs to be adjusted in the operations is facilitated.

Therefore the utility model has the characteristics of easy and simple to handle, convenient laborsaving has reduced the operation degree of difficulty of operation, and the location is accurate, difficult not hard up, and it is little to the patient damage, and the postoperative resumes soon, has not only enlarged operation space, makes things convenient for operation position adjustment, and the partial surgical instruments business turn over of being convenient for is with fixed, more matches in operation habit, convenient and practical moreover.

Drawings

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

FIG. 2 is a schematic view of the side guards and hook members of the expandable member;

FIG. 3 is a schematic structural view of a slidable module and a retraction limiting device;

FIG. 4 is a schematic view of an intraoperative auxiliary working channel application;

wherein, 1-a slide rail; 2-fixed arm, 3-sliding arm; 4-an expandable member; 5-a rectangular groove I; 6-a rectangular groove II; 7-a slidable module; 8-limit retraction device; 41-baffle, 42-hook-shaped part, 21-bayonet; 71-a rotating wrench; 72-a rack; 81-latch.

Detailed Description

The present invention is further described with reference to the accompanying drawings, which are not intended to limit the invention in any way, and any alterations and substitutions based on the teachings of the present invention are all within the scope of the invention.

As shown in fig. 1-3, the present invention provides a spinal microscope surgery auxiliary expanding device, which comprises a sliding rail 1, a fixed arm 2, a sliding arm 3 and an expandable member 4, wherein the fixed arm 2 is fixedly sleeved at one end of the sliding rail 1, the sliding arm 3 is slidably sleeved on the sliding rail 1 and can slide freely on the sliding rail 1, the ends of the fixed arm 2 and the sliding arm 3 are respectively connected with the expandable member 4 through a rectangular slot one 5, the expandable member 4 comprises a baffle 41 and a hook member 42, the baffle 41 is connected with the sliding arm through the rectangular slot one 5, the hook member 42 is connected with the fixed arm through the rectangular slot one 5, a slidable module 7 and a limiting retraction device 8 are arranged on the sliding arm 3, the slidable module 7 comprises a rotary wrench 71, a gear and a rack 72 arranged on the sliding rail 1, said gear wheel is mounted on the sliding arm 3 by means of a rotating shaft and cooperates with the rack, said gear wheel driving the slidable module 7 to move precisely on the fixed arm by means of a rotating wrench 71, as is known in the art.

As shown in fig. 3, the retraction-limiting device 8 is a latch 81 hinged to the sliding arm 3, and the latch extends in a direction away from the position where the latch 81 is hinged to the sliding arm 3, and the latch of the retraction-limiting device engages with the tooth groove of the rack on the sliding rail to limit the retraction of the sliding module.

The first embodiment is as follows:

the height of the baffle plate 41 can be designed into different specifications, namely 3.0-7.0 cm, and 9 specifications are counted in 0.5cm increment; the width is set for 2.5cm, 3.5cm, 4.0cm 3 specifications to satisfy the needs of different incision depths in the art and length, and be fit for the needs of the patient of different heights weight, baffle 41 both sides are with 110 degrees arc design, and dentate structure is designed to the bottom, and extend to the outside with 130 degrees radians, and the field of vision is sheltered from in the avoidance that this kind of design can be better, makes things convenient for the operation.

The hook-shaped part 42 of the expandable part 4 has the same rectangular hollow structure with the baffle plate 41 at the connecting end of the sliding arm, the outer side of the bottom of the expandable part is provided with an arc hook-shaped structure, the height is from 3.0 to 7.0cm, 9 specifications are counted by 0.5cm in an increasing mode, and the expandable part has the function of stable expansion.

The sliding arm is arranged in a 7-shaped structure, the fixed arm 2 and the sliding arm 3 are respectively sleeved on the sliding rail 1 through the rectangular groove II 6, and the fixed arm 2 can be fixedly sleeved on the sliding rail 1 through daily fixing modes such as bolts.

Example two:

as shown in FIG. 2, different from the first embodiment, the hook-shaped member 42 of the expandable member 4 has another design structure, namely, an arc-shaped hook-shaped structure, in order to avoid the view obstruction, the bottom expanding shape extends outwards and is in a right-angle structure, the height is from 3.0 to 7.0cm, 9 specifications are counted by 0.5cm increment, the outer side surface of the expandable member is provided with a rectangular tooth-shaped structure, and the rectangular tooth-shaped structure also has the functions of stably expanding and preventing slippage, and different specifications can be freely selected according to the operation requirement in the operation.

As a best embodiment, the fixing arm 2 is provided with a bayonet 21, one end of the bayonet is rotatably connected to the fixing arm through a knob, the port of the other end of the bayonet is designed into a notch shape, the bayonet 21 can be connected with a clinically universal snake-shaped arm, and the size of the notch can be set according to the size of the snake-shaped arm.

The working process of the utility model is as follows:

as shown in fig. 4, the end of the expandable component of the present invention is connected to the fixed arm and the sliding arm through a rectangular slot structure, wherein the baffle is selected from a specification which is most suitable for the patient in the specification range of 3.0 to 7.0cm, the paraspinal muscle is inserted, the slidable module 7 on the sliding arm 3 is adjusted to support the muscle from the hook component to a proper position, the rack 72 is blocked by the latch 81 on the restriction retraction device 8, the sliding arm is prevented from retracting, after the operation is completed, the slidable module on the sliding arm is retracted and adjusted to retract the sliding arm, and finally the device is taken out.

In a preferred embodiment, the hook member 42 is used for fixing the midline side, the side guards 41 are used for distracting the paraspinal musculature, and are formed in different specifications, and the specifications can be freely selected according to the operation requirement, and the retractor is restrained to maintain the distracted state by being caught on the gullets.

Claims

1. The utility model provides a supplementary extension fixture of backbone microscope operation, comprises slide rail (1), fixed arm (2), cursor slide (3) and expandable part (4), its characterized in that: fixed arm (2) fixed cover locate slide rail (1) one end, the slide arm sliding sleeve locate on slide rail (1), can freely slide on slide rail (1), the end of fixed arm (2) and slide arm (3) be connected through rectangle draw-in groove (5) with expansible part (4) respectively, expansible part (4) constitute by baffle (41) and hook-shaped part (42), slide arm (3) on be equipped with slidable module (7) and restriction back-off unit (8).

2. The spinal microscopy surgical assisted dilation device of claim 1, wherein: the upper end of the baffle (41) is designed to be a rectangular hollow structure, the baffle (41) is connected with the sliding arm (3) through a rectangular clamping groove I (5), the bottom end of the baffle is designed to be a toothed structure, and the baffle extends outwards with a certain angle of radian.

3. The spinal microscopy surgical assisted dilation device of claim 1, wherein: the upper end of the hook-shaped part (42) and the baffle (41) have the same rectangular hollow structure, the hook-shaped part (42) is connected with the fixing arm (2) through the rectangular clamping groove I (5), and the outer side face of the hook-shaped part (42) is designed to be in a rectangular toothed structure and extends outwards at a certain radian.

4. The spinal microscopy surgical assisted dilation device of claim 1, wherein: the fixed arm (2) and the sliding arm (3) are respectively sleeved on the sliding rail (1) through a rectangular groove II (6), and the fixed arm (2) is fixedly sleeved on the sliding rail (1) through a bolt.

5. The spinal microscopy surgical auxiliary dilation device according to any one of claims 1 or 2, wherein: the height of the baffle (41) can be designed into different specifications, namely 3.0-7.0 cm, and 9 specifications are counted by 0.5cm in an increasing way; the width is set to 2.5cm, 3.5cm, 4.0cm and is counted 3 specifications, baffle (41) both sides are with 110 degrees arc design, and the bottom designs into dentate structure to outwards extend with 130 degrees radian.

6. The spinal microscopy surgical auxiliary dilation device according to any one of claims 1 or 3, wherein: the hook-shaped part (42) of the expandable part (4) has another design structure, namely an arc hook-shaped structure, the expanding shape of the bottom extends outwards and is in a right-angle structure, the height is from 3.0 to 7.0cm, and 9 specifications are counted by 0.5cm in an increasing way.

7. The spinal microscopy surgical auxiliary dilation device according to any one of claims 1 or 4, wherein: the fixing arm (2) is provided with a bayonet (21), one end of the bayonet is rotatably connected to the fixing arm (2) through a knob, and the port at the other end is designed into a notch structure.