CN210903155U

CN210903155U - Posterior cranial fovea retractor for neurosurgery

Info

Publication number: CN210903155U
Application number: CN201921599086.9U
Authority: CN
Inventors: 温林豹; 俞红林; 张应松
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-07-03
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a back cranium concave retractor for neurosurgery, include the base and lead out the clamp, the upper surface threaded connection of base has rotatory handle, the bottom fixedly connected with fixed plate of rotatory handle, the last fixed surface of base is connected with the bracing piece, it has the lifter to peg graft on the top of bracing piece, the top fixedly connected with backup pad of lifter, the last surface threaded connection of backup pad has leads out the clamp. This back cranium concave retractor for neurosurgery through the setting of drawing back clamp, vaulting pole, pusher dog, positioning bolt, card hole, rack, straight-teeth gear and pivot, medical personnel will draw back the clamp and fix in the backup pad, and through rotatory pivot, the straight-teeth gear just can drive rack motion, can make things convenient for medical personnel to adjust and fix the angle of drawing back the clamp, and through positioning bolt and the cooperation of card hole, can also rotate vaulting pole and pusher dog to different angles, made things convenient for the use of various operation condition moreover.

Description

Posterior cranial fovea retractor for neurosurgery

Technical Field

The utility model relates to the technical field of medical auxiliary equipment, in particular to a posterior cranium fovea retractor for neurosurgery.

Background

The posterior cranial fossa retractor is a device for neurosurgical medical personnel to pull soft tissues when performing a cranial surgical operation on the head of a patient.

When the medical staff performs an operation on the head of a patient, the high accuracy needs to be ensured, otherwise, the serious consequences can be caused by carelessness, but because the operation position is too small, the medical staff needs to constantly retract soft tissues influencing the operation on the back skull of the patient during the operation so as to perform the operation more quickly, but the traditional retractor adopts a hand-retracting holding mode, and if the operation time is long, the traditional retractor not only holds an unstable retractor and influences the operation, but also can cause great harm to the patient.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the deficiency of the prior art, the utility model provides a back cranium concave retractor for neurosurgery, which solves the problem provided in the background technology.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a back cranial cavity retractor for neurosurgery comprises a base and a retracting clamp, wherein the upper surface of the base is in threaded connection with a rotary handle, the bottom end of the rotary handle is fixedly connected with a fixing plate, the upper surface of the base is fixedly connected with a supporting rod, the top end of the supporting rod is spliced with a lifting rod, the top end of the lifting rod is fixedly connected with a supporting plate, the upper surface of the supporting plate is in threaded connection with the retracting clamp, one end of the retracting clamp is hinged with a supporting rod, the lower surface of the supporting rod is fixedly connected with a shifting claw, one end of the supporting rod, which is close to the retracting clamp, is in threaded connection with a positioning bolt, one end of the retracting clamp, which is close to the shifting claw, is provided with a clamping hole, one end of the retracting clamp, which is far away from the shifting claw, is clamped with a rack, the outer part of the, a clamping rod is clamped on the side face of the straight gear, and a spring is fixedly connected to one side, far away from the straight gear, of the clamping rod.

Optionally, a bolt is connected to the side surface of the supporting rod in a threaded manner, a positioning hole is formed in the side surface of the lifting rod, and the bolt penetrates through the supporting rod and is in threaded connection with the positioning hole.

Optionally, the number of the clamping holes is several, the clamping holes are arranged in a circular array, and the positioning bolt is in threaded connection with the clamping holes.

Optionally, the upper surface of the supporting plate is fixedly connected with a protective shell, and the sliding rail is fixedly connected to the inner side wall of the protective shell.

Optionally, the clamping rod is hinged to the inner side wall of the protective shell through a hinge, and one end, far away from the clamping rod, of the spring is fixedly connected to the inner side wall of the protective shell.

(III) advantageous effects

The utility model provides a neurosurgery is with cranium concave retractor possesses following beneficial effect:

1. this back cranium concave retractor for neurosurgery through the setting of drawing back clamp, vaulting pole, pusher dog, positioning bolt, card hole, rack, straight-teeth gear and pivot, medical personnel will draw back the clamp and fix in the backup pad, and through rotatory pivot, the straight-teeth gear just can drive rack motion, can make things convenient for medical personnel to adjust and fix the angle of drawing back the clamp, and through positioning bolt and the cooperation of card hole, can also rotate vaulting pole and pusher dog to different angles, made things convenient for the use of various operation condition moreover.

2. This neurosurgery is with back cranium concave retractor, through the setting of rotatory handle, fixed plate, kelly and spring, medical personnel will draw and press from both sides the adjustment to fixed position after, the spring just can jack-up the kelly, with kelly and straight-teeth gear joint, has restricted the motion of straight-teeth gear, prevents to draw and presss from both sides the shrink, and medical personnel can also fix the device on the operating table through rotatory handle and fixed plate, has made things convenient for medical personnel to adjust and use the device.

Drawings

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

FIG. 2 is a schematic view of the structure of the retractable clip of the present invention;

fig. 3 is a schematic view of the rack structure of the present invention;

fig. 4 is a schematic top view of the cross-sectional structure of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 4 according to the present invention.

In the figure: 1. a base; 2. retracting the clips; 3. rotating the grip; 4. a fixing plate; 5. a support bar; 6. a lifting rod; 7. a support plate; 8. a stay bar; 9. a pusher dog; 10. a rack; 11. a spur gear; 12. a rotating shaft; 13. a clamping rod; 14. a spring; 15. and (4) a protective shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 5, the present invention provides a technical solution: a back skull retractor for neurosurgery comprises a base 1 and a retracting clamp 2, wherein the upper surface of the base 1 is in threaded connection with a rotary handle 3, the bottom end of the rotary handle 3 is fixedly connected with a fixing plate 4, the upper surface of the base 1 is fixedly connected with a supporting rod 5, the top end of the supporting rod 5 is inserted with a lifting rod 6, the top end of the lifting rod 6 is fixedly connected with a supporting plate 7, the upper surface of the supporting plate 7 is in threaded connection with the retracting clamp 2, one end of the retracting clamp 2 is hinged with a supporting rod 8, the lower surface of the supporting rod 8 is fixedly connected with a shifting claw 9, one end, close to the retracting clamp 2, of the supporting rod 8 is in threaded connection with a positioning bolt, one end, close to the shifting claw 9, of the retracting clamp 2 is provided with a clamping hole, one end, far away from the shifting claw 9, of the retracting clamp 2 is clamped with a rack 10, the outer part;

through the arrangement of the retracting clamp 2, the support rod 8, the shifting claw 9, the positioning bolt, the clamping hole, the rack 10, the straight gear 11 and the rotating shaft 12, medical personnel fix the retracting clamp 2 on the supporting plate 7, and through the rotation of the rotating shaft 12, the straight gear 11 can drive the rack 10 to move, so that the medical personnel can conveniently adjust and fix the angle of the retracting clamp 2, and through the matching of the positioning bolt and the clamping hole, the support rod 8 and the shifting claw 9 can be rotated to different angles, so that the use under various operation conditions is facilitated;

a clamping rod 13 is clamped on the side surface of the straight gear 11, and a spring 14 is fixedly connected to one side of the clamping rod 13, which is far away from the straight gear 11;

through the arrangement of the rotary handle 3, the fixed plate 4, the clamping rod 13 and the spring 14, after the medical staff adjusts the retraction clip 2 to a fixed position, the spring 14 can jack up the clamping rod 13 to clamp the clamping rod 13 with the straight gear 11, so that the movement of the straight gear 11 is limited, the retraction clip 2 is prevented from shrinking, the medical staff can also fix the device on an operating table through rotating the handle 3 and the fixed plate 4, and the adjustment and the use of the device are facilitated for the medical staff;

the side threaded connection of bracing piece 5 has the bolt, the locating hole has been seted up to the side of lifter 6, the bolt runs through bracing piece 5 and locating hole threaded connection, the quantity in card hole is a plurality of, and a plurality of card hole sets up with the form of ring array, positioning bolt and card hole threaded connection, the last fixed surface of backup pad 7 is connected with protecting crust 15, slide rail fixed connection is at the inside wall of protecting crust 15, card pole 13 passes through the hinge and articulates the inside wall at protecting crust 15, spring 14 keeps away from the one end fixed connection of card pole 13 at the inside wall of protecting crust 15.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In conclusion, when the posterior cranial cavity retractor for neurosurgery is used, medical personnel fixes the retracting clip 2 on the supporting plate 7 through the arrangement of the retracting clip 2, the stay bar 8, the poking claw 9, the positioning bolt, the clamping hole, the rack bar 10, the straight gear 11 and the rotating shaft 12, the straight gear 11 can drive the rack bar 10 to move through rotating the rotating shaft 12, the medical personnel can conveniently adjust and fix the angle of the retracting clip 2, and the stay bar 8 and the poking claw 9 can also be rotated to different angles through the matching of the positioning bolt and the clamping hole, so that the use of various operation conditions is convenient, the medical personnel can jack the clamping bar 13 through rotating the handle 3, the fixing plate 4, the retracting clip 13 and the spring 14 after adjusting the retracting clip 2 to a fixed position, the spring 14 can jack the clamping bar 13 and the straight gear 11 in a clamping way, so as to limit the movement of the straight gear 11 and prevent the retracting clip 2, and the medical personnel can also fix the device on an operating table through rotating the handle 3 and the fixing plate 4, the device is convenient for medical staff to adjust and use.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. A back cranium concave retractor for neurosurgery comprises a base (1) and a retracting clip (2), and is characterized in that: the upper surface of the base (1) is in threaded connection with a rotary handle (3), the bottom end of the rotary handle (3) is fixedly connected with a fixing plate (4), the upper surface of the base (1) is fixedly connected with a support rod (5), the top end of the support rod (5) is inserted with a lifting rod (6), the top end of the lifting rod (6) is fixedly connected with a support plate (7), the upper surface of the support plate (7) is in threaded connection with a retracting clamp (2), one end of the retracting clamp (2) is hinged with a support rod (8), the lower surface of the support rod (8) is fixedly connected with a shifting claw (9), one end of the support rod (8) close to the retracting clamp (2) is in threaded connection with a positioning bolt, one end of the retracting clamp (2) close to the shifting claw (9) is provided with a clamping hole, one end of the retracting clamp (2) far away from the shifting claw (, the outside sliding connection of rack (10) has the slide rail, the side meshing of rack (10) has straight-teeth gear (11), the last fixed surface of straight-teeth gear (11) is connected with pivot (12), the side joint of straight-teeth gear (11) has kelly (13), one side fixedly connected with spring (14) of straight-teeth gear (11) are kept away from to kelly (13).

2. A neurosurgical posterior cranial retractor according to claim 1, wherein: the side surface of the supporting rod (5) is in threaded connection with a bolt, the side surface of the lifting rod (6) is provided with a positioning hole, and the bolt penetrates through the supporting rod (5) and is in threaded connection with the positioning hole.

3. A neurosurgical posterior cranial retractor according to claim 1, wherein: the number of the clamping holes is a plurality, the clamping holes are arranged in a circular array mode, and the positioning bolts are in threaded connection with the clamping holes.

4. A neurosurgical posterior cranial retractor according to claim 1, wherein: the upper surface fixed connection of backup pad (7) has protecting crust (15), slide rail fixed connection is at the inside wall of protecting crust (15).

5. A neurosurgical posterior cranial retractor according to claim 1, wherein: the clamping rod (13) is hinged to the inner side wall of the protective shell (15) through a hinge, and one end, far away from the clamping rod (13), of the spring (14) is fixedly connected to the inner side wall of the protective shell (15).