CN212261429U - Adjustable cervical vertebra operation clearance expansion channel device - Google Patents

Abstract

The utility model discloses an adjustable type cervical vertebra operation clearance expansion channel device, it includes: the dilator body consists of a first dilator assembly, a second dilator assembly and a control assembly; the control assembly is arranged on one side, close to the holding end, of the second long extension arm and clamped on the main adjusting arm to control the position adjustment between the first expansion arm and the second expansion arm; and the gap blocking assembly is detachably clamped on the first auxiliary adjusting arm and the second auxiliary adjusting arm between the first expansion assembly and the second expansion assembly. The utility model provides an adjustable cervical vertebra operation gap expansion channel device, which can realize the size adjustment of an expansion channel by arranging an expander body and a gap blocking component, thereby meeting the purpose of improving the expansion range in a limited way; meanwhile, the gap blocking assembly is arranged to make up the gap generated by expansion during expansion, so that the integrity of the expansion channel is ensured; effectively expose the surgical field and facilitate the smooth operation of the operating doctor.

Description

Adjustable cervical vertebra operation clearance expansion channel device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an adjustable cervical vertebra operation gap expansion channel device.

Background

In the cervical vertebra operation, the skin of a patient is often needed to be cut open to carry out the operation treatment in the deep part of the cervical vertebra, but in the operation, the skin of an affected part or internal muscles can bring difficulty to the operation, and the contraction of the skin of the affected part and the internal muscles can obstruct the visual field of the operation;

a series of devices for expanding an operation channel in the cervical vertebra operation process have been developed on the market at present, but most of the products on the market are simple tubular devices which are directly fixed on two sides of the cervical vertebra and separate skin and subcutaneous muscle tissues towards two sides so as to facilitate the operation of doctors.

The current dilation devices present the following problems in the surgical procedure:

one is as follows: the existing product can only realize simple expansion of the operation channel and can not adjust the size of the channel according to the conditions of different patients;

the second step is as follows: the current cylindrical expansion device has limited expansion range;

and thirdly: the existing product needs external light source equipment for illumination, and personnel is too much in arrangement, which wastes personnel cost;

for the above reasons, there is a strong need to design an adjustable cervical spine surgery gap expanding channel device that overcomes the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide an adjustable cervical vertebra operation gap expansion channel device, which can realize the size adjustment of an expansion channel by arranging an expander body and a gap blocking component, thereby meeting the aim of effectively improving the expansion range; meanwhile, the clearance blocking assembly is arranged to make up the clearance generated by expansion and ensure the integrity of the expansion channel; effectively expose the surgical field and facilitate the smooth operation of the operating doctor.

In order to achieve the above object, the present invention mainly provides the following technical solutions:

an adjustable cervical spine surgery gap expanding channel device, comprising:

the dilator body consists of a first dilator assembly, a second dilator assembly and a control assembly;

the first expansion assembly comprises a semi-cylindrical expansion arm I, a short extension arm I arranged at one end of the expansion arm I, an auxiliary adjusting arm I vertically connected with the short extension arm I, a long extension arm I arranged at the other end of the expansion arm I, an auxiliary adjusting arm II vertically connected with one end of the long extension arm I, a main adjusting arm vertically connected with the end of the main adjusting arm and a wrench-shaped head end arranged at one head end of the long extension arm;

the second expansion component comprises a semi-cylindrical expansion arm II, a short extension arm II arranged at one end of the expansion arm II, a long extension arm II arranged at the other end of the expansion arm II and a holding end of the control component arranged at the head end of the expansion arm II;

the short extension arm II and the long extension arm II are respectively provided with a clamping groove for the movement of the auxiliary adjusting arm I and the auxiliary adjusting arm II;

the control assembly is arranged on one side, close to the holding end, of the second long extension arm and clamped on the main adjusting arm to control the position adjustment between the first expansion arm and the second expansion arm;

the first expansion arm and the second expansion arm are completely closed to form a cylindrical operation channel;

and the gap blocking assembly is detachably clamped on the first auxiliary adjusting arm and the second auxiliary adjusting arm between the first expansion assembly and the second expansion assembly.

Further, the expansion arm I and the expansion arm II are symmetrically provided with an optical fiber through hole and an aspirator through hole;

the top ends of the optical fiber through hole and the suction apparatus through hole are both started from the top ends of the expansion arm I and the expansion arm II, and the bottom ends of the optical fiber through hole and the suction apparatus through hole penetrate into the inner walls of the expansion arm I and the expansion arm II from the inner walls of the top ends of the expansion arm I and the expansion arm II.

Furthermore, the control assembly comprises a left vertical plate, a right vertical plate and a regulating assembly arranged between the left vertical plate and the right vertical plate;

the left vertical plate and the right vertical plate are integrally connected with the long extension arm II;

the regulating component comprises a regulating plate which is L-shaped;

the vertical arm of the regulating plate is clamped between the convex strips on the main regulating arm, and the bending positions of the vertical arm and the transverse arm of the regulating plate are hinged with the inner walls of the left vertical plate and the right vertical plate through movable shafts;

and a spring is arranged between the bottom end of the cross arm and the connecting shaft at the holding end.

Furthermore, the holding end comprises a connecting shaft and a butterfly bolt arranged at the end part of the connecting shaft;

one end of the connecting shaft is connected to one side of the left vertical plate through a bolt, and the other end of the connecting shaft penetrates out of a through hole correspondingly formed in the right vertical plate;

and a bolt rod of the butterfly bolt is hinged with the end part of the connecting shaft.

Furthermore, the top wall of the cross arm is provided with anti-skid grains.

The bottom end of the vertical arm is clamped between the convex teeth on the main adjusting arm.

Furthermore, the first auxiliary adjusting arm and the second auxiliary adjusting arm both comprise a slotted base plate with a straight slot opening shape;

a plurality of pairs of convex teeth which are symmetrically arranged are arranged on the left arm and the right arm of the slot;

the convex tooth with the latch that the clearance blockked subassembly department corresponds the joint, just the clearance blocks the subassembly and can follow the direction removal of vice regulating arm one and vice regulating arm two.

Furthermore, the main adjusting arm comprises an adjusting arm and convex strips which are arranged on the adjusting arm and are uniformly arranged.

Furthermore, the base plates of the first auxiliary adjusting arm and the second auxiliary adjusting arm and the main adjusting arm are rectangular.

Furthermore, the base plates of the first auxiliary adjusting arm and the second auxiliary adjusting arm and the main adjusting arm are arc-shaped.

Further, the gap blocking assembly comprises a first blocking piece and a second blocking piece;

and a semicircular clamping piece is arranged at the position, close to the top end, of the vertical plate of the first blocking piece and used for clamping the light source wire.

Furthermore, the first blocking piece and the second blocking piece both comprise a blocking plate and a clamping piece arranged at the top end of the blocking plate;

the blocking plate is L-shaped; the vertical plate of the expansion arm is consistent with the heights of the expansion arm I and the expansion arm II; the clamping piece is arranged on the transverse plate of the blocking plate;

the clamping piece sequentially comprises a pressing button, a T-shaped clamping piece connected with the pressing button and a pressure spring arranged at the bottom end of the T-shaped clamping piece from top to bottom;

the bottom wall of the T-shaped clamping piece is provided with a clamping tongue which is clamped at the convex teeth on the first auxiliary adjusting arm and the second auxiliary adjusting arm.

Furthermore, the position of the vertical plate close to the bottom wall is arc-shaped and is bent towards one end of the cross arm.

Further, the dilator body and the gap blocking assembly are made of medical titanium alloy.

Compared with the prior art, the utility model discloses the beneficial effect who produces mainly embodies:

the adjustable cervical vertebra operation gap expanding channel device of the utility model can effectively expand the operation channel and simultaneously prevent other tissues from entering the channel through the gap caused by expansion by arranging the expander body and the gap blocking component; the surgical field is effectively exposed, so that the surgeon can smoothly complete the operation;

the adjustable cervical vertebra operation gap expanding channel device of the utility model is provided with the expander body which is composed of a first expanding component with adjustable expanding distance, a second expanding component and a control component; the distance of the operating doctor can be adjusted according to the operation requirement; the channel expansion device has the advantages that the channel expansion size can be automatically adjusted according to different conditions, and compared with the conventional channel expansion device, the channel expansion device is wider in application range and better in effect;

the adjustable cervical vertebra operation gap expansion channel device of the utility model is provided with an optical fiber through hole and an aspirator through hole, which can be used for the light source and the negative pressure aspirator to enter; effectively solves the problems of illumination and negative pressure suction in the operation process, thereby effectively reducing the labor cost of the operation.

The utility model discloses an adjustable type cervical vertebra operation clearance expansion channel device, it has that structural design is simple reasonable, convenient regulation, the damage is little, the art is wild exposes clear characteristics, can extensively promote to in the medical treatment operation scope.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to clearly understand the technical means of the present invention and implement the technical means according to the content of the description, the following detailed description of the preferred embodiments of the present invention is given with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the adjustable cervical vertebra operation gap expanding channel device of the present invention;

FIG. 2 is a schematic view of the adjustable cervical vertebrae surgery gap expanding channel device according to the present invention;

FIG. 3 is a schematic view of the adjustable cervical spine surgery gap expanding channel device according to another view angle;

FIG. 4 is an enlarged view at A in FIG. 3;

fig. 5 is a schematic structural view of the gap block assembly of the present invention;

fig. 6 is a cross-sectional view of the gap dam assembly of the present invention;

fig. 7 is a schematic structural view of embodiment 1 of the present invention;

description of reference numerals:

1. a dilator body; 11. a first expansion member; 12. a second expansion member; 13. a control component; 14. a primary adjustment arm; 15. a card slot; 16. an optical fiber through hole; 17. an aspirator through hole; 18. a through groove; 19. an arc-shaped notch;

111. a first expansion arm; 112. a short extension arm I; 113. a first auxiliary adjusting arm; 114. a first long extension arm; 115. a wrench-like head end; 116. a secondary adjusting arm II;

1131. a substrate; 1132. grooving; 1133. a convex tooth;

121. a second expansion arm; 122. a second short extension arm; 123. a long extension arm II; 124. a holding end; 1241. a connecting shaft; 1242. a butterfly bolt;

131. a left vertical plate; 132. a right vertical plate; 133. a regulatory component; 1331. a control panel; 1332. a vertical arm; 1333. a cross arm; 1334. anti-skid lines; 1335. a spring; 1336. a movable shaft;

141. an adjusting arm; 142. a convex strip;

2. an operative corridor;

3. a gap blocking assembly; 31. a first blocking part; 32. a second blocking part; 311. a semicircular clamping piece; 312. a blocking plate; 313. a clamping piece; 3121. a vertical plate; 3122. a transverse plate; 3131. pressing the button; 3132. t-shaped clamping pieces; 3133. a pressure spring; 3134. a latch;

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the present invention, the following detailed description will be given with reference to the accompanying drawings and preferred embodiments for the specific embodiments, structures, features and effects of the adjustable cervical vertebrae surgery gap expanding channel device according to the present invention.

As shown in fig. 1-6, the utility model discloses an adjustable cervical vertebra operation clearance expanding channel device, it includes:

a dilator body 1 composed of a first dilator element 11, a second dilator element 12 and a control element 13;

the first expansion component 11 comprises a semi-cylindrical expansion arm I111, a short extension arm I112 arranged at one end of the expansion arm I111, a secondary adjusting arm I113 vertically connected with the short extension arm I, a long extension arm I114 arranged at the other end of the expansion arm I111, a secondary adjusting arm II (116) vertically connected with one end of the long extension arm I114, a main adjusting arm 14 vertically connected with the end of the secondary adjusting arm II, and a wrench-shaped head end 115 arranged at the head end of the long extension arm I114;

the second expansion component 12 comprises a second semi-cylindrical expansion arm 121, a second short extension arm 122 arranged at one end of the second expansion arm 121, a second long extension arm 123 arranged at the other end of the second expansion arm, and a holding end 124 arranged at the head end of the control component 13;

the short second extension arm 122 and the long second extension arm 123 are respectively provided with a clamping groove 15 for the first auxiliary adjusting arm 113 and the second auxiliary adjusting arm 116 to move;

the control component 13 is arranged on one side of the second long extension arm 123 close to the holding end 124 and clamped on the main adjusting arm 14 for controlling the position adjustment between the first expansion arm 111 and the expansion arm;

the first expansion arm 111 and the second expansion arm 121 are completely closed to form a cylindrical operation channel 2;

and the gap blocking component 3 is detachably clamped on the first auxiliary adjusting arm 113 and the second auxiliary adjusting arm 116 between the first expansion component 11 and the second expansion component 12.

The adjustable cervical vertebra operation clearance expansion channel device of this application embodiment, its process at the use:

an operator cuts the skin of the cervical vertebra operation part, drives distraction screws into the adjacent cervical vertebra bodies respectively, and then puts the dilator body 1 in a closed state; after the surgical instrument is placed in the body, the surgeon can adjust the surgical instrument according to the situation;

firstly: the surgeon presses the cross arm 1333 of the actuator assembly 133 to disengage the vertical arm 1332 from the teeth 1133 on the main actuator arm 14, thereby disengaging the first dilating arm 111 and the second dilating arm 121 to the desired distance to form the appropriate surgical access 2 and then the cross arm 1333 of the actuator assembly 133, whereupon the vertical arm 1332 continues to snap between the teeth 1133 on the main actuator arm 14; the size of the operation channel 2 can be ensured to be fixed;

when the operation channel 2 is expanded, a larger gap position exists between the first expansion arm 111 and the second expansion arm 121; at this time, the gap blocking assembly 3 is selected and respectively clamped on a first auxiliary adjusting arm 113 and a second auxiliary adjusting arm 116 on two sides; the first blocking part 31 and the second blocking part 32 are used for blocking the skin and the muscular tissue under the skin around the operation position of the patient, so that the skin and the muscular tissue are prevented from entering the operation channel 2, and the visual field of the operation is fully exposed.

In the operation, in order to ensure that the visual field of medical personnel is not influenced, an optical fiber cold light source is inserted into the optical fiber through hole 16 for illumination;

if the vacuum suction is needed to be realized, and the visual field of the operation area is ensured to be clear, the purpose of vacuum suction can be realized by inserting the suction tube into the through hole 17 of the suction apparatus;

the light source and the vacuum suction tube can be clamped and fixed on the dilator body 1, and the bottom end of the vertical arm 1332 is not required to be manually held and operated to be clamped between the convex teeth 1133 on the main adjusting arm 14.

In the adjustable cervical vertebra operation gap expanding channel device of the embodiment of the present application, the wrench-shaped head end 115 is a fixing device, and is connected to the fixing frame to fix the distractor on the operating bed.

As shown in fig. 1 and 2, in the adjustable cervical vertebrae operation gap expanding channel device of the present invention, the first expanding arm 111 and the second expanding arm 121 are symmetrically provided with an optical fiber through hole 16 and an aspirator through hole 17;

the top ends of the optical fiber through hole 16 and the aspirator through hole 17 are both started from the top ends of the expansion arms I111 and the expansion arms II 121, and the bottom ends of the optical fiber through hole and the aspirator through hole penetrate into the inner walls of the top ends of the expansion arms I111 and the expansion arms II 121 from the inner walls thereof.

In the adjustable cervical vertebra operation gap expansion channel device of the embodiment of the application, the first expansion arm 111 and the second expansion arm 121 are symmetrically provided with the optical fiber through hole 16 and the aspirator through hole 17, so that the purpose of integrating the optical fiber through hole 16 and the aspirator through hole 17 on the expansion channel device can be realized; thereby avoiding the problem of manual handling in the prior art.

As shown in fig. 4, the control assembly 13 of the adjustable cervical vertebrae surgery gap expanding channel device of the present invention includes a left vertical plate 131, a right vertical plate 132 and an adjusting assembly 133 disposed therebetween;

the left vertical plate 131 and the right vertical plate 132 are integrally connected with the second long extension arm 123;

the regulating member 133 includes a regulating plate 1331, which is L-shaped;

the vertical arm 1332 of the adjusting plate 1331 is clamped between the convex strips 142 on the main adjusting arm 14, and the bending positions of the vertical arm 1332 and the cross arm 1333 of the adjusting plate 1331 are hinged with the inner walls of the left vertical plate 131 and the right vertical plate 132 through a movable shaft 1336;

a spring 1335 is arranged between the bottom end of the cross arm 1333 and the connecting shaft 1241 of the holding end 124.

In the adjustable cervical spine surgery gap expanding channel device according to the embodiment of the application, the control assembly 13 is arranged on the main adjusting arm 14 and is used for controlling the direct position adjustment and fixation of the first expanding arm 111 and the second expanding arm 121; the structure design of the regulating component 133 is simple and practical; in the operation, the operator can quickly separate the vertical arm 1332 from the convex teeth 1133 on the main adjusting arm 14 by pressing the cross arm 1333, and the surgical instrument has the characteristics of convenient adjustment and strong practicability.

As shown in fig. 3, the holding end 124 of the adjustable cervical vertebrae surgery gap expanding channel device of the present invention includes a connecting shaft 1241 and a butterfly bolt 1242 disposed at the end thereof;

one end of the connecting shaft 1241 is connected to one side of the left vertical plate 131 through a bolt, and the other end of the connecting shaft 1241 penetrates through a through hole correspondingly formed in the right vertical plate 132;

the bolt rod of the butterfly bolt 1242 is hinged to the end of the connecting shaft 1241.

The adjustable cervical vertebra operation gap expanding channel device provided by the embodiment of the application is provided with the holding end 124, so that an operator can conveniently and manually adjust the opening range.

As shown in fig. 4, in the adjustable cervical vertebrae surgery gap expanding channel device of the present invention, the top wall of the cross arm 1333 is provided with anti-slip patterns 1334.

The bottom end of the vertical arm 1332 snaps between the respective teeth 1133 on the primary adjustment arm 14.

The adjustable cervical vertebra surgery gap expanding channel device provided by the embodiment of the application is convenient for an operator to use and operate as the anti-slip threads 1334 are arranged on the cross arm 1333.

As shown in fig. 2, in the adjustable cervical vertebrae operation gap expanding channel device of the present invention, the first auxiliary adjusting arm 113 and the second auxiliary adjusting arm 116 both include a base plate 1131 having a straight notch 1132;

a plurality of pairs of convex teeth 1133 which are symmetrically arranged are arranged on the left arm and the right arm of the slot 1132;

the protruding tooth 1133 is correspondingly engaged with the tongue 3134 at the position of the gap blocking assembly 3, and the gap blocking assembly 3 can move along the directions of the first sub-adjusting arm 113 and the second sub-adjusting arm 116.

In the adjustable cervical spine surgery gap expanding channel device according to the embodiment of the present application, the first minor adjustment arm 113 and the second minor adjustment arm 116 are provided with protruding teeth 1133, which are arranged corresponding to the tongue 3134 at the gap blocking assembly 3; the gap blocking piece is clamped on the gap blocking piece, so that the skin around the operation position of a patient and muscle tissue under the skin are blocked, the patient is prevented from entering the operation channel 2, and the visual field of the operation is fully exposed.

As shown in fig. 2, the utility model discloses an adjustable cervical vertebra operation clearance expanding channel device, the main adjusting arm 14 includes the adjusting arm 141 and locates the sand grip 142 that evenly sets up on the adjusting arm 141.

The adjustable cervical vertebra operation gap expanding channel device provided by the embodiment of the application has the advantages that the main adjusting arm 14 is arranged to control and adjust, and the position movement of the first auxiliary adjusting arm 113 and the position movement of the second auxiliary adjusting arm 116 are all completed under the driving of the main adjusting arm 14.

Embodiment 1, as shown in fig. 7, in the adjustable cervical spine surgery gap expanding channel device of the present invention, the base plates 1131 of the first auxiliary adjusting arm 113 and the second auxiliary adjusting arm 116 and the main adjusting arm 14 are rectangular.

In this embodiment 1, the base 1131 and the main adjustment arm 14 of the first and second sub adjustment arms 113 and 116 are rectangular, and the expanded surgical tunnel 2 is cylindrical.

Embodiment 2, as shown in fig. 1, the base plate 1131 of the first and second auxiliary adjusting arms 113 and 116 and the main adjusting arm 14 of the adjustable cervical vertebra surgical gap expanding channel device of the present invention are arc-shaped.

In this embodiment 2, the base plate 1131 of the first sub-adjustment arm 113 and the second sub-adjustment arm 116 and the main adjustment arm 14 are both arc-shaped, which can ensure that the expansion range is larger than the space in embodiment 1; the radian of the base 1131 of the first sub-adjusting arm 113 and the second sub-adjusting arm 116 and the radian of the main adjusting arm 14 are 20 to 30 degrees.

As shown in fig. 5 and 6, the gap expanding channel device for adjustable cervical vertebra surgery of the present invention comprises a first blocking member 31 and a second blocking member 32;

a semicircular clamping piece 311 is arranged at the position, close to the top end, of the vertical plate 3121 of the first blocking piece 31 and used for clamping the light source wire.

In the adjustable cervical vertebra operation gap expanding channel device according to the embodiment of the present application, the number of the gap blocking assemblies 3 is two, and the two gap blocking assemblies are respectively clamped on the first auxiliary adjusting arm 113 and the second auxiliary adjusting arm 116.

As shown in fig. 6, in the adjustable cervical vertebrae operation gap expanding channel device of the present invention, the first blocking member 31 and the second blocking member 32 both include a blocking plate 312 and a locking member 313 disposed at the top end thereof;

the blocking plate 312 is L-shaped; the vertical plate 3121 is identical to the height of the expansion arm I111 and the expansion arm II 121; the transverse plate 3122 of the stop plate 312 is provided with the clamping piece 313;

the clamping piece 313 comprises a pressing button 3131, a T-shaped clamping piece 3132 connected with the pressing button 3131 and a pressure spring 3133 arranged at the bottom end of the T-shaped clamping piece 3132 in sequence from top to bottom;

the bottom wall of the T-shaped fastener 3132 is provided with a tongue 3134, and the tongue 3134 is fastened to the teeth 1133 on the first sub-adjusting arm 113 and the second sub-adjusting arm 116.

The adjustable cervical vertebra operation clearance expanding channel device of the embodiment of the application has the advantages that the first blocking piece 31 and the second blocking piece 32 are simple in structural design, an operator can simply press the first blocking piece to achieve detaching and moving operation of the blocking pieces, and the use of the operator is met.

As shown in fig. 6, the position of the vertical plate 3121 near the bottom wall is arc-shaped and is bent toward one end of the lateral arm 1333.

As shown in figure 1, the utility model discloses an adjustable cervical vertebra operation clearance expansion channel device, expander body 1 and clearance stop subassembly 3 adopt medical titanium alloy to make.

The utility model relates to an adjustable cervical vertebra operation gap expansion channel device, the outer walls of the first expansion arm 111 and the second expansion arm 121 and the corresponding central positions are vertically provided with a through groove 18 for the insertion of screws; and the bottom end of the through groove 18 is an arc notch.

The present invention has been further described with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. An adjustable cervical vertebra operation clearance expansion channel device, its characterized in that, it includes:

a dilator body (1) consisting of a first dilator element (11), a second dilator element (12) and a control element (13);

the first expansion assembly (11) comprises a semi-cylindrical expansion arm I (111), a short extension arm I (112) arranged at one end of the expansion arm I (111), an auxiliary adjusting arm I (113) vertically connected with the expansion arm I, a long extension arm I (114) arranged at the other end of the expansion arm I (111), an auxiliary adjusting arm II (116) vertically connected with one end of the long extension arm I (114), a main adjusting arm (14) vertically connected with the end of the main adjusting arm II, and a wrench-shaped head end (115) arranged at the head end of the long extension arm I (114);

the second expansion component (12) comprises a semi-cylindrical expansion arm II (121), a short extension arm II (122) arranged at one end of the expansion arm II (121), a long extension arm II (123) arranged at the other end of the expansion arm II, and a holding end (124) of the control component (13) arranged at the head end of the expansion arm II;

clamping grooves (15) are formed in the short extension arm II (122) and the long extension arm II (123) respectively and are used for the auxiliary adjusting arm I (113) and the auxiliary adjusting arm II (116) to move;

the control component (13) is arranged on one side, close to the holding end (124), of the second long extension arm (123) and clamped on the main adjusting arm (14) to control the position adjustment between the first expansion arm (111) and the expansion arm;

the first expansion arm (111) and the second expansion arm (121) are completely closed to form a cylindrical operation channel (2);

and the gap blocking component (3) is detachably clamped on a first auxiliary adjusting arm (113) and a second auxiliary adjusting arm (116) between the first expansion component (11) and the second expansion component (12).

2. The adjustable cervical spine surgery gap expanding channel device according to claim 1, wherein:

the expansion arm I (111) and the expansion arm II (121) are symmetrically provided with an optical fiber through hole (16) and an aspirator through hole (17);

the top ends of the optical fiber through hole (16) and the aspirator through hole (17) are both started from the top ends of the expansion arm I (111) and the expansion arm II (121), and the bottom ends of the optical fiber through hole and the aspirator through hole penetrate into the inner walls of the expansion arm I (111) and the expansion arm II (121).

3. The adjustable cervical spine surgery gap expanding channel device according to claim 1, wherein:

the control component (13) comprises a left vertical plate (131), a right vertical plate (132) and a regulating component (133) arranged between the left vertical plate and the right vertical plate;

the left vertical plate (131) and the right vertical plate (132) are integrally connected with the second long extension arm (123);

the regulating component (133) comprises a regulating plate (1331) which is L-shaped;

the vertical arm (1332) of the regulating plate (1331) is clamped between the convex strips (142) on the main regulating arm (14), and the bending positions of the vertical arm (1332) and the transverse arm (1333) of the regulating plate (1331) are hinged with the inner walls of the left vertical plate (131) and the right vertical plate (132) through a movable shaft (1336);

a spring (1335) is arranged between the bottom end of the cross arm (1333) and the connecting shaft (1241) of the holding end (124);

the top wall of the cross arm (1333) is provided with anti-skid grains (1334);

the bottom end of the vertical arm (1332) is snapped between the individual teeth (1133) on the main adjustment arm (14).

4. The adjustable cervical spine surgery gap expanding channel device according to claim 3, wherein:

the holding end (124) comprises a connecting shaft (1241) and a butterfly bolt (1242) arranged at the end part of the connecting shaft;

one end of the connecting shaft (1241) is connected to one side of the left vertical plate (131) through a bolt, and the other end of the connecting shaft penetrates out of a through hole correspondingly formed in the right vertical plate (132);

the bolt rod of the butterfly bolt (1242) is hinged with the end of the connecting shaft (1241).

5. The adjustable cervical spine surgery gap expanding channel device according to claim 1, wherein:

the first secondary regulating arm (113) and the second secondary regulating arm (116) respectively comprise a base plate (1131) with a straight notch-shaped slot (1132);

a plurality of pairs of convex teeth (1133) which are symmetrically arranged are arranged on the left arm and the right arm of the slotting (1132);

the convex tooth (1133) is correspondingly clamped with a clamping tongue (3134) at the position of the gap blocking assembly (3), and the gap blocking assembly (3) can move along the directions of the first auxiliary adjusting arm (113) and the second auxiliary adjusting arm (116);

the main adjusting arm (14) comprises an adjusting arm (141) and convex strips (142) which are arranged on the adjusting arm (141) and are uniformly arranged;

the base plate (1131) of the first auxiliary adjusting arm (113) and the second auxiliary adjusting arm (116) and the main adjusting arm (14) are rectangular.

6. The adjustable cervical spine surgery gap expanding channel device according to claim 5, wherein:

the base plate (1131) of the first auxiliary adjusting arm (113) and the second auxiliary adjusting arm (116) and the main adjusting arm (14) are arc-shaped.

7. The adjustable cervical spine surgery gap expanding channel device according to claim 1, wherein:

the gap blocking assembly (3) comprises a first blocking part (31) and a second blocking part (32);

and a semicircular clamping piece (311) is arranged at the position, close to the top end, of the vertical plate (3121) of the first blocking piece (31) and used for clamping the light source wire.

8. The adjustable cervical spine surgery gap expanding channel device according to claim 7, wherein:

the first blocking part (31) and the second blocking part (32) respectively comprise a blocking plate (312) and a clamping part (313) arranged at the top end of the blocking plate;

the blocking plate (312) is L-shaped; the vertical plate (3121) of the expansion arm I (111) and the expansion arm II (121) is in accordance with the height; the clamping piece (313) is arranged on a transverse plate (3122) of the blocking plate (312);

the clamping piece (313) sequentially comprises a pressing button (3131), a T-shaped clamping piece (3132) connected with the pressing button (3131) and a pressure spring (3133) arranged at the bottom end of the T-shaped clamping piece (3132) from top to bottom;

the bottom wall of the T-shaped clamping piece (3132) is provided with a clamping tongue (3134), and the clamping tongue (3134) is clamped at the convex teeth (1133) on the first auxiliary adjusting arm (113) and the second auxiliary adjusting arm (116).

9. The adjustable cervical spine surgery gap expanding channel device according to claim 8, wherein:

the position of the vertical plate (3121) close to the bottom wall is arc-shaped and is bent towards one end of the cross arm (1333).

10. The adjustable cervical spine surgery gap expanding channel device according to claim 1, wherein:

the dilator body (1) and the gap blocking component (3) are made of medical titanium alloy.

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