CN216797724U

CN216797724U - Convenient and practical antiskid nerve retractor

Info

Publication number: CN216797724U
Application number: CN202123301784.6U
Authority: CN
Inventors: 王强; 张雅文; 刘晨阳
Original assignee: Beijing Hospital
Current assignee: Beijing Hospital
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-24
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to a neural drag hook of convenient practicality antiskid in medical instrument field, it includes control rod and tractive head, the tractive head is including connecting at the connecting portion of control rod tip, fixing the second supporting part that deviates from the first supporting part of control rod one end and be located first supporting part one side at connecting portion, a recess has been seted up jointly to one side that first supporting part and second supporting part deviate from connecting portion, be provided with one between first supporting part and the second supporting part and be used for adjusting the coupling assembling that slides of recess opening size. The traction head can adapt to patients with different body types, and the traction stability of the traction head to the nerve root is improved.

Description

Convenient and practical antiskid nerve retractor

Technical Field

The application relates to the field of medical equipment, in particular to a convenient and practical antiskid nerve retractor.

Background

In the process of spinal surgery, particularly lumbar vertebra surgery, when intervertebral discs are treated, the visual field is small, in order to expose the lumbar intervertebral discs more clearly, the dural sac and nerve roots must be retracted to expand the visual field, the intervertebral discs are better exposed, the surgical operation is convenient, and the dural sac and the nerve roots need to be retracted to one side by using a nerve retractor to realize the purpose of exposing the intervertebral discs; present nerve drag hook includes the control lever and connects the tractive head in control lever one end, in order to reduce the possibility that slippage took place with the intervertebral disc for the tractive head, set up fluted in order to adapt with the surface of intervertebral disc at the one end that the tractive head deviates from the control lever, but because the difference of different patient sizes, the recess on the tractive head is difficult for looks adaptation and use to influence the tractive stability to the nerve root.

SUMMERY OF THE UTILITY MODEL

In order to make the tractive head can adapt to the patient of different sizes, improve the tractive stability of tractive head to the nerve root, this application provides a neural drag hook of convenient practical antiskid.

The application provides a pair of neural drag hook of convenient practical antiskid adopts following technical scheme:

the utility model provides a neural drag hook of convenient practicality antiskid, includes control rod and tractive head, the tractive head is including connecting at the connecting portion of control rod tip, fixing the second supporting part that deviates from the first supporting part of control rod one end and be located first supporting part one side at connecting portion, a recess has been seted up jointly to one side that first supporting part and second supporting part deviate from connecting portion, be provided with one between first supporting part and the second supporting part and be used for adjusting the coupling assembling that slides of recess opening size.

Through adopting above-mentioned technical scheme, when medical personnel operated to the patient of different sizes, medical personnel can be according to patient's intervertebral disc surface radian, use the coupling assembling that slides to adjust the interval between first supporting part and the second supporting part, thereby adjust recess opening size, adapt to patient's intervertebral disc surface radian until recess opening size, then reuse the coupling assembling that slides and fix the position of the relative first supporting part of second supporting part, thereby strengthen adaptability and stability that the recess of first supporting part and second supporting part and different patient intervertebral disc surface card established, and then improve the tractive stability of tractive head to the nerve root.

Optionally, the sliding connection assembly comprises a sliding plate fixed on one side of the second supporting part facing the first supporting part, a sliding groove for the sliding plate to be inserted and connected in a sliding mode is formed in one side of the first supporting part facing the second supporting part, and a locking part used for fixing the sliding plate at a position in the sliding groove is arranged on the first supporting part.

Through adopting above-mentioned technical scheme, when needs are adjusted the interval of first supporting part and second supporting part, the staff only need remove the retaining member to the locking of sliding plate and sliding groove, then can relative sliding groove carry out push-and-pull and adjustment to sliding plate, after the adjustment reuse retaining member to sliding plate and sliding groove relatively fixed can, overall structure is simple the simple operation, the regulation efficiency of interval between first supporting part and the second supporting part has been improved.

Optionally, a sliding block is fixed on one side of the second support portion facing the operating lever, and a sliding groove for the sliding block to move along the length direction of the groove is formed in one side of the operating lever facing the second support portion.

Through adopting above-mentioned technical scheme, the spout is established spacingly to the card of slider, has reduced the possibility that second supporting part atress produced deformation in slide plate department.

Optionally, the locking member is a thumb screw, the thumb screw is screwed on the first supporting portion, and the end of the thumb screw penetrates into the sliding groove and abuts against the sliding plate.

Through adopting above-mentioned technical scheme, the setting of thumb screw makes things convenient for medical personnel to twist it manually, improves operating efficiency.

Optionally, the joystick includes a first rod connected to the connecting portion and a second rod disposed at an end of the first rod away from the connecting portion, and an adjusting component for adjusting a distance between the first rod and the second rod is disposed between the first rod and the second rod.

Through adopting above-mentioned technical scheme, use adjusting part to adjust the whole length of first body of rod and the second body of rod, the convenient operation demand to different size patients or the different health positions of patient to when the tractive head need stretch into patient's health different degree of depth, the staff can operate control lever and tractive head through holding the pole with best angle and the most comfortable mode of holding.

Optionally, the adjusting component includes a sliding rod fixed at one end of the first rod body facing the second rod body, a sliding hole for the sliding rod to insert and slide is formed in one end of the second rod body facing the first rod body, and a fixing part for fixing the sliding rod at a set position in the sliding hole is arranged on the second rod body.

Through adopting above-mentioned technical scheme, the mounting is to the free locking or the unlocking of the pole that slides and the hole that slides for medical personnel can be convenient slide through the relative hole that slides of the pole that slides adjusts the whole length of the first body of rod and the second body of rod, has improved medical personnel's work efficiency.

Optionally, a holding rod is fixed to one end of the operating rod, which is far away from the first supporting portion, and the operating rod in an angle, a line body is connected to one end of the holding rod, which is far away from the operating rod, and a traction weight is connected to the end of the line body.

Through adopting above-mentioned technical scheme, the medical personnel of tractive nerve root have been reduced in the setting of tractive weight, have reduced the radiation injury that probably causes corresponding medical personnel.

Optionally, the tractive weight is provided with a plurality ofly, the weight gradient distribution of a plurality of tractive weights, and the line body respectively is connected with one in order to be used for connecting the tractive weight of corresponding weight on holding the pole alone on every tractive weight.

Through adopting above-mentioned technical scheme, make things convenient for medical personnel to select the tractive weight of corresponding weight to carry out the tractive to the nerve root according to the condition of actual operation, the maximum harm that alleviates probably causes the nerve root when guaranteeing the tractive stable to the nerve root.

Optionally, one end of the wire body, which is far away from the traction weight, is connected with a hook, and the holding rod is provided with a hook hole matched with the hook.

Through adopting above-mentioned technical scheme, the cooperation in couple and hook hole has improved medical personnel to the change efficiency of tractive weight.

Optionally, an arc-shaped traction plate is connected to one side of the connection part and the control lever, which faces the nerve root.

Through adopting above-mentioned technical scheme, the setting of tractive board for when carrying out the tractive to the nerve root, the tractive board can carry out certain location to the nerve root, improves the tractive stability to the nerve root.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the traction stability of the traction head on nerve roots is improved, when medical workers perform operations on patients of different body types, the medical workers can adjust the distance between the first supporting part and the second supporting part by using the sliding connection assembly according to the surface radian of the intervertebral disc of the patient, so that the size of the opening of the groove is adjusted until the size of the opening of the groove adapts to the surface radian of the intervertebral disc of the patient, and then the sliding connection assembly is used for fixing the position of the second supporting part relative to the first supporting part, so that the adaptability and the stability of the clamping of the grooves of the first supporting part and the second supporting part and the surfaces of the intervertebral discs of different patients are enhanced;

2. the efficiency of the regulation of interval between first supporting part and the second supporting part is improved, when the interval of first supporting part and second supporting part is adjusted to needs, the staff only need remove the locking piece to the board and the locking in groove of sliding, then can relative sliding groove carry out push-and-pull and adjustment to the board of sliding, reuse locking piece after the adjustment again after to the board and the groove of sliding relatively fixed can, overall structure is simple operation.

Drawings

FIG. 1 is a schematic view of the overall structure of the nerve retractor according to the embodiment of the present application;

FIG. 2 is a schematic structural view of a slip joint assembly;

FIG. 3 is a schematic structural view embodying an adjustment assembly;

fig. 4 is a schematic structural view embodying a stabilizing assembly.

Description of reference numerals: 1. a joystick; 11. a first rod body; 12. a second rod body; 121. a sliding hole; 2. a puller head; 21. a connecting portion; 211. a chute; 22. a first support section; 221. a sliding groove; 23. a second support portion; 24. a groove; 3. a holding rod; 31. a hook hole; 4. a sliding connection component; 41. a slide plate; 42. a locking member; 43. a slider; 5. an adjustment assembly; 51. a slide bar; 52. a fixing member; 6. a drawplate; 7. a stabilizing assembly; 71. drawing weights; 72. a wire body; 73. and (4) hanging hooks.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses neural drag hook of convenient practicality antiskid. Referring to fig. 1, the nerve retractor comprises an operating rod 1 and a retractor head 2 arranged at one end of the operating rod 1, the operating rod 1 is used for operating the retractor head 2 for the convenience of medical care personnel, the nerve root is pulled, a holding rod 3 is fixed at one end of the operating rod 1 far away from the retractor head 2, and the holding rod 3 and the operating rod 1 are bent.

Referring to fig. 2, the pull head 2 includes a connecting portion 21 fixed at one end of the operating lever 1 far away from the holding rod 3, the connecting portion 21 is rectangular plate-shaped, one side of the connecting portion 21 departing from the operating lever 1 is provided with a first supporting portion 22 and a second supporting portion 23, the first supporting portion 22 and the second supporting portion 23 are arranged along the width direction of the connecting portion 21, the first supporting portion 22 is fixed with the connecting portion 21 towards one side of the connecting portion 21, one side of the second supporting portion 23 towards the connecting portion 21 is abutted to the connecting portion 21, an arc-shaped groove 24 is jointly formed at one side of the first supporting portion 22 and one side of the second supporting portion 23 departing from the connecting portion 21, the size of the opening of the arc-shaped groove 24 is adjusted conveniently, and a sliding connection assembly 4 is arranged between the first supporting portion 22 and the second supporting portion 23.

Referring to fig. 2, the sliding connection assembly 4 includes a sliding plate 41 fixed on one side of the second support portion 23 facing the first support portion 22, and one side of the first support portion 22 facing the second support portion 23 is provided with a sliding groove 221 for the sliding plate 41 to be inserted and to slide along the width direction of the connection portion 21, the first support portion 22 is further provided with a locking member 42 for fixing the sliding plate 41 at a position inside the sliding groove 221, the locking member 42 may be a screw, a bolt, or the like, in this embodiment, the locking member 42 is a thumb screw, the thumb screw is arranged on one side of the first support portion 22 close to the second support portion 23, the thumb screw is screwed onto the first support portion 22, and an end of the thumb screw penetrates into the sliding groove 221 and abuts against a side wall of the sliding plate 41, so as to fix the sliding plate 41 relative to the sliding groove 221.

When the medical staff performs an operation on patients with different body types, the medical staff can manually unscrew the thumb screws according to the radian of the surface of the intervertebral disc of the patient, release the fixation of the sliding plate 41 and the sliding groove 221 of the first supporting part 22, then move the second supporting part 23 towards the direction close to or away from the first supporting part 22, enable the sliding plate 41 to slide in the sliding groove 221 until the opening size of the groove 24 is matched with the radian of the surface of the intervertebral disc of the patient, and then the medical staff tightens the thumb screws again to fix the sliding plate 41 in the sliding groove 221, so that the grooves 24 on the first supporting part 22 and the second supporting part 23 can be suitable for the patients with different body types, the adaptability and the stability of the clamping of the first supporting part 22 and the second supporting part 23 with the surfaces of the intervertebral disc sliders of different patients are enhanced, and the traction stability of the traction device 2 on nerve roots is further improved.

Referring to fig. 2, a sliding block 43 is further fixed on one side of the second support portion 23 facing the connecting portion 21 along the width direction of the second support portion 23, and a sliding slot 211 for the sliding block 43 to be inserted and slide along the width direction of the connecting portion 21 is formed on one side of the connecting portion 21 facing the second support portion 23 along the width direction of the connecting portion 21; the sliding groove 211 is limited to the sliding block 43, so that the overall structure of the second supporting portion 23 and the first supporting portion 22 is more stable, and the possibility of deformation of the second supporting portion 23 at the position of the sliding plate 41 under the stress is reduced.

Referring to fig. 2, in order to reduce the possibility of slippage between the nerve root and the connecting portion 21, an arc-shaped traction plate 6 is connected to one side of the connecting portion 21 and the control lever 1 facing the nerve root, and the inner arc surface of the traction plate 6 is arranged in a direction away from the connecting portion 21, so that when the nerve root is pulled, the inner arc surface of the traction plate 6 can position the nerve root to a certain extent, and the pulling stability of the nerve root is improved.

Referring to fig. 3, the operating lever 1 includes a first lever 11 fixed to the connecting portion 21 and a second lever 12 fixed to the holding lever 3, so as to adjust the overall length of the first lever 11 and the second lever 12 conveniently, so as to meet the operation requirements of patients of different sizes or different body parts of the patients, and an adjusting assembly 5 is disposed between the first lever 11 and the second lever 12 to adjust the overall length of the first lever 11 and the second lever 12, so that when the pulling head 2 needs to extend into different body depths of the patients, a worker can operate the operating lever 1 and the pulling head 2 through the holding lever 3 at an optimal angle and in a most comfortable holding manner.

Referring to fig. 3, the adjusting assembly 5 includes a sliding rod 51 fixed at an end of the first rod 11 away from the connecting portion 21, a cross-sectional dimension of the sliding rod 51 is smaller than a cross-sectional dimension of the first rod 11, and the sliding rod 51 is disposed in the same direction as the first rod 11, a sliding hole 121 for the sliding rod 51 to be inserted and slidably connected is disposed on an end surface of the second rod 12 away from the holding portion toward the holding portion 3, a fixing member 52 is disposed at an end of the second rod 12 outside the holding portion and close to the holding portion for fixing the sliding rod 51 at a position in the sliding hole 121, the fixing member 52 can be a screw, a bolt, a hoop, or the like, in this embodiment, the fixing member 52 is also a thumb screw, the thumb screw is disposed at a side of the second rod 12 close to the sliding rod 51, the thumb screw is threadedly connected to the second rod 12, and an end of the thumb screw penetrates into the sliding hole 121 and abuts against a side wall of the sliding rod 51, thereby fixing the slide lever 51 with respect to the slide hole 121.

Referring to fig. 4, one end of the holding rod 3 far away from the second rod body 12 is further provided with a stabilizing assembly 7, the stabilizing assembly 7 comprises a pulling weight 71 and a wire body 72 connected to the pulling weight 71, one end of the wire body 72 far away from the pulling weight 71 is connected with a hook 73, one end of the holding rod 3 far away from the second rod body 12 is provided with a hook hole 31 for the hook 73 to be hung in, under the pull-down effect of the pulling weight 71, the holding rod 3, the second rod body 12, the sliding rod 51 and the first rod body 11 can keep the pulling plate 6 in the state of pulling the nerve roots, so that medical staff for pulling the nerve roots are reduced, and radiation injury possibly caused to corresponding medical staff is reduced.

In order to meet the requirements of nerve root traction distances or traction strength of different patients, a plurality of traction weights 71 are arranged, the weight of the traction weights 71 is distributed in a gradient manner, and the wire body 72 and the hook 73 are respectively connected to each traction weight 71 to be used for independently connecting the traction weight 71 with corresponding weight to the holding rod 3; therefore, medical staff can conveniently select the traction weight 71 with corresponding weight to traction the nerve root according to the actual operation condition, stable traction on the nerve root is guaranteed, and injury possibly caused to the nerve root is relieved to the maximum extent.

The implementation principle of the neural drag hook of convenient practical antiskid of this application embodiment is: when the medical staff performs operations on patients with different body types, the medical staff can manually unscrew the thumb screws according to the surface radian of the intervertebral disc of the patient, release the fixation of the sliding plate 41 and the sliding groove 221 of the first supporting part 22, then move the second supporting part 23 towards the direction close to or away from the first supporting part 22, enable the sliding plate 41 to slide in the sliding groove 221 until the opening size of the groove 24 is matched with the surface radian of the intervertebral disc of the patient, and then the medical staff can re-screw the thumb screws to fix the sliding plate 41 in the position in the sliding groove 221, so that the grooves 24 on the first supporting part 22 and the second supporting part 23 can be suitable for patients with different body types.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a neural drag hook of convenient practicality antiskid which characterized in that: including control rod (1) and tractive head (2), tractive head (2) including connect at connecting portion (21) of control rod (1) tip, fix in connecting portion (21) and deviate from first supporting part (22) of control rod (1) one end and be located second supporting part (23) of first supporting part (22) one side, first supporting part (22) and second supporting part (23) deviate from one side of connecting portion (21) and seted up a recess (24) jointly, be provided with one between first supporting part (22) and second supporting part (23) and be used for adjusting the coupling assembling (4) that slide of recess (24) opening size.

2. The anti-skidding nerve retractor of claim 1, which is characterized in that: slip coupling assembling (4) including fixing slide plate (41) in second supporting part (23) towards first supporting part (22) one side, first supporting part (22) are seted up one and are supplied slide plate (41) to insert and slide sliding connection's sliding groove (221) towards one side of second supporting part (23), be provided with one on first supporting part (22) and be used for fixing retaining member (42) of establishing the position in sliding groove (221) with slide plate (41).

3. The anti-skidding nerve retractor of claim 2, which is characterized in that: one side of the second support part (23) facing the operating rod (1) is fixedly provided with a sliding block (43), and one side of the operating rod (1) facing the second support part (23) is provided with a sliding groove (211) for the sliding block (43) to move along the length direction of the groove (24).

4. The anti-skidding nerve retractor of claim 2, which is characterized in that: the locking piece (42) is a butterfly screw, the butterfly screw is screwed on the first supporting part (22) in a threaded manner, and the end part of the butterfly screw penetrates into the sliding groove (221) and is tightly propped against the sliding plate (41).

5. The anti-skidding nerve retractor of claim 1, which is characterized in that: the operating rod (1) comprises a first rod body (11) connected with the connecting portion (21) and a second rod body (12) arranged at one end, deviating from the connecting portion (21), of the first rod body (11), and an adjusting component (5) used for adjusting the distance between the first rod body (11) and the second rod body (12) is arranged between the first rod body (11) and the second rod body (12).

6. The anti-skidding nerve retractor of claim 5 is characterized in that: adjusting part (5) including fixing first body of rod (11) towards one sliding rod (51) of second body of rod (12) one end, the second body of rod (12) is seted up one towards the one end of first body of rod (11) and is supplied sliding rod (51) to insert and slide sliding hole (121) of connection, is provided with one on the second body of rod (12) and is used for fixing sliding rod (51) and establishes mounting (52) of setting position in sliding hole (121).

7. The anti-skidding nerve retractor of claim 1, which is characterized in that: one end, far away from first supporting part (22), of control rod (1) is fixed with a holding rod (3) with control rod (1) angulation, the one end, far away from control rod (1), of holding rod (3) is connected with a line body (72), and the end of line body (72) is connected with a tractive weight (71).

8. The anti-skidding nerve retractor of claim 7, which is characterized in that: the traction weights (71) are arranged in a plurality of forms, the weight of the traction weights (71) is distributed in a gradient manner, and the wire body (72) is connected to each traction weight (71) in a manner that the traction weight (71) corresponding to the weight is connected to the holding rod (3) independently.

9. The anti-skidding nerve retractor of claim 8 is characterized in that: one end, far away from the traction weight (71), of the wire body (72) is connected with a hook (73), and a hook hole (31) matched with the hook (73) is formed in the holding rod (3).

10. The anti-skidding nerve retractor of claim 1, which is characterized in that: one side of the joint of the connecting part (21) and the control lever (1) facing to the nerve root is connected with an arc-shaped traction plate (6).