CN209984259U

CN209984259U - One-way controllable skull micropore drill

Info

Publication number: CN209984259U
Application number: CN201920340848.7U
Authority: CN
Inventors: 王子敬; 王红福
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-01-24
Anticipated expiration: 2029-03-18

Abstract

The utility model discloses an one-way controllable skull micro-hole drill, which belongs to an operation tool. The drill comprises a drill handle and a drill rod, wherein a non-return clutch is connected between the drill handle and the drill rod; the non-return clutch comprises a sleeve, and the upper end of the sleeve is fixedly connected with the drill handle; the upper end of the drill rod is inserted into the sleeve, and a rotary drum is fixed at the upper end of the drill rod; the rotating drum is sleeved in the sleeve in a matching way, and the outer circumferential surface of the rotating drum is provided with a plurality of uniformly distributed wedge-shaped grooves; a cylindrical lock cylinder is arranged in the wedge-shaped groove, and when the lock cylinder is at the lowest position in the wedge-shaped groove, the lock cylinder does not exceed the outer circumferential surface of the rotary drum; the side wall of the wedge-shaped groove is provided with a mounting hole, a spring is placed in the mounting hole, and the outer end of the spring is abutted against the lock column. The utility model discloses utilize contrary separation and reunion that ends, continuous drilling through art person's one-hand forward rotation control drill bit advances, and the drill bit is motionless during one-hand reverse rotation, has saved the time of making a round trip to loosen hand adjustment wrist angle of art person, does benefit to control skull drilling puncture direction, has guaranteed the operation precision, has also shortened skull drilling time.

Description

One-way controllable skull micropore drill

Technical Field

The utility model relates to a surgical tool, in particular to an one-way controllable skull micro-hole drill.

Background

The hand drill of T font or Y font on the existing market, when rotatory, all need make a round trip to loosen the hand and adjust the wrist angle, leads to operation efficiency to reduce, and the pine hand of making a round trip also can make the precision more difficult to hold. The electric hand drill is suitable for craniotomy and is not suitable for craniocerebral minimally invasive surgery in safety.

Disclosure of Invention

In order to solve the technical problem, the utility model provides an one-way controllable formula skull micropore bores is applicable to cerebral hemorrhage patient's wicresoft puncture drainage art and ventriculoperitoneal puncture drainage art.

The utility model discloses a following technical scheme realizes: the utility model provides a one-way controllable formula skull micropore bores which characterized in that: the drill comprises a drill handle and a drill rod, wherein a non-return clutch is connected between the drill handle and the drill rod; the non-return clutch comprises a sleeve, and the upper end of the sleeve is fixedly connected with the drill handle; the upper end of the drill rod is inserted into the sleeve, and a rotary drum is fixed at the upper end of the drill rod; the rotating drum is sleeved in the sleeve in a matching manner, and the outer circumferential surface of the rotating drum is provided with a plurality of uniformly distributed wedge-shaped grooves; a cylindrical lock cylinder is arranged in the wedge-shaped groove, and when the lock cylinder is at the lowest position in the wedge-shaped groove, the lock cylinder does not exceed the outer circumferential surface of the rotary drum; the side wall of the wedge-shaped groove is provided with a mounting hole, a spring is placed in the mounting hole, and the outer end of the spring is abutted against the lock column.

It further comprises the following steps: the number of the wedge grooves is three.

The upper end surface of the drill rod is provided with an installation groove, and a ball is placed in the installation groove on the upper end surface of the drill rod; the upper end of the ball is abutted against the surface of the drill handle.

A limiting ring is arranged on the upper side of the rotary drum and fixed on the drill rod; a circumferential sliding groove is formed in the outer circumferential surface of the limiting ring; the sleeve is provided with a limit screw in a threaded connection mode, and the inner end of the limit screw penetrates through the wall of the sleeve and then is installed in a sliding groove in a sliding fit mode on the limit ring.

And the sleeve is also provided with a locking bolt through threaded connection, and the inner end of the locking bolt penetrates through the wall of the sleeve and then abuts against the drill rod.

The drill bit is installed at the lower end of the drill rod through the chuck.

The drill bit is a 3.5mm-5mm drill bit.

And the drill bit is provided with a limiter.

Compared with the prior art, the beneficial effects of the utility model are that: utilize contrary separation and reunion that ends, through the one-hand forward rotation control drill bit of art and continuously drill and go forward, the drill bit is motionless during one-hand reverse rotation, has saved the time that the art person made a round trip to loosen the hand and adjust the wrist angle, does benefit to control skull drilling puncture direction, has guaranteed the operation precision, has also shortened skull drilling time.

Drawings

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

FIG. 2 is a front view of the present invention;

fig. 3 is a left side view of the present invention;

fig. 4 is a top view of the present invention;

in the figure: 1. a drill handle; 2. a drill stem; 3. non-return clutching; 3-1, sleeve; 3-2, rotating the drum; 3-3, carving a groove; 3-4, locking columns; 3-5, a spring; 4. a ball bearing; 5. a limiting ring; 5-1, a chute; 6. a limit screw; 7. locking the bolt; 8. a chuck; 9. a drill bit; 10. a stopper; 10-1, a limit sleeve; 10-2, positioning bolts.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 1 to 4, the one-way controllable skull micro-hole drill is characterized in that a drill handle 1 is a cylindrical barrel, a drill bit 9 is arranged at the lower end of a drill rod 2 through a chuck 8, and the drill bit 9 can be a 3.5mm-5mm drill bit according to specific working conditions. The front end of the drill bit 9 is provided with a limiter 10, and the limiter 10 comprises a limiting sleeve 10-1 and a positioning bolt 10-2. The limiting sleeve 10-1 is sleeved at the front end of the drill bit 9 in a sliding mode, and the position of the limiting sleeve 10-1 can be adjusted according to working conditions; the positioning bolt 10-2 is propped against the drill bit 9 after penetrating through the limiting sleeve 10-1 through threaded connection, and the position of the limiting sleeve 10-1 is fixed by fastening the positioning bolt 10-2, so that the drilling depth of the drill bit into the skull is controlled.

The drill handle 1 is connected with the drill rod 2 through a non-return clutch 3. The non-return clutch 3 comprises a sleeve 3-1, a rotary drum 3-2, a lock cylinder 3-4 and a spring 3-5, and the upper end of the sleeve 3-1 is fixedly connected with the drill handle 1. The rotary drum 3-2 is sleeved at the upper end of the drill rod 2, and the rotary drum 3-2 is fixedly connected with the drill rod 2. The rotating drum 3-2 is sleeved in the sleeve 3-1 in a matching way, and the outer circumferential surface of the rotating drum 3-2 is provided with a plurality of uniformly distributed wedge-shaped grooves 3-3. A cylindrical lock cylinder 3-4 is arranged in the wedge-shaped groove 3-3, and when the lock cylinder 3-4 is at the lowest position in the wedge-shaped groove 3-3, the lock cylinder 3-4 does not exceed the outer circumferential surface of the rotary drum 3-2. The inner side wall of the wedge-shaped groove 3-3 is provided with a mounting hole, a spring 3-5 is arranged in the mounting hole, and the outer end of the spring 3-5 is abutted against the lock column 3-4. The spring 3-5 pushes the cylinder 3-4 to slide up along the wedge groove 3-3 without rotating, so that the cylinder 3-4 is in contact with the wedge groove 3-3 and the inner wall of the sleeve 3-1, respectively.

The upper end surface of the drill rod 2 is provided with an installation groove, and a ball 4 is arranged in the installation groove on the upper end surface of the drill rod 2; the upper end of the ball 4 is abutted against the surface of the drill handle 1, and the ball 4 is arranged to facilitate the rotation of the drill rod 2 relative to the drill handle 1. In addition, a limiting ring 5 is arranged on the upper side of the rotary drum 3-2, and the limiting ring 5 is fixed on the drill rod 2; a circumferential sliding groove 5-1 is formed in the outer circumferential surface of the limiting ring 5; the sleeve 3-1 is provided with a limit screw 6 through threaded connection, and the inner end of the limit screw 6 penetrates through the wall of the sleeve 3-1 and then is arranged in a sliding groove 5-1 on the limit ring 5 in a sliding fit manner. The sleeve 3-1 and the drill rod 2 are relatively fixed in the axial direction through the limiting ring 5 and the limiting screw 6.

The sleeve 3-1 is also provided with a locking bolt 7 through threaded connection, and the inner end of the locking bolt 7 passes through the wall of the sleeve 3-1 and then abuts against the drill rod 2. The sleeve 3-1 and the drill rod 2 can be relatively fixed by rotating the locking bolt 7, and at the moment, the check clutch 3 does not play a check effect any more.

The working process is as follows:

referring to fig. 4, the spring pushes the lock cylinder to slide up along the wedge-shaped groove under the condition of non-rotation, so that the lock cylinder is respectively contacted with the wedge-shaped groove and the inner wall of the sleeve;

when the drill handle is rotated clockwise, the sleeve and the rotary drum are locked by the lock cylinder under the action of friction force, namely, the drill handle finally drives the drill rod to rotate anticlockwise, and the drilling process is finished;

when the drill handle is rotated anticlockwise, the lock column between the sleeve and the rotary drum is unlocked, the drill rod is not moved, and the time for adjusting the wrist angle by loosening hands of an operator is saved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a one-way controllable formula skull micropore bores which characterized in that: comprises a drill handle (1) and a drill rod (2), wherein a non-return clutch (3) is connected between the drill handle (1) and the drill rod (2); the non-return clutch (3) comprises a sleeve (3-1), and the upper end of the sleeve (3-1) is fixedly connected with the drill handle (1); the upper end of the drill rod (2) is inserted into the sleeve (3-1), and the upper end of the drill rod (2) is fixed with the rotary drum (3-2); the rotating cylinder (3-2) is sleeved in the sleeve (3-1) in a matching way, and the outer circumferential surface of the rotating cylinder (3-2) is provided with a plurality of uniformly distributed wedge-shaped grooves (3-3); a cylindrical lock cylinder (3-4) is arranged in the wedge-shaped groove (3-3), and when the lock cylinder (3-4) is at the lowest position in the wedge-shaped groove (3-3), the lock cylinder (3-4) does not exceed the outer circumferential surface of the rotary drum (3-2); the side wall of the wedge-shaped groove (3-3) is provided with a mounting hole, a spring (3-5) is placed in the mounting hole, and the outer end of the spring (3-5) is abutted against the lock column (3-4).

2. A one-way controllable cranial burr according to claim 1, characterized in that: the number of the wedge-shaped grooves (3-3) is three.

3. A one-way controllable cranial burr according to claim 1, characterized in that: an installation groove is formed in the upper end face of the drill rod (2), and a ball (4) is placed in the installation groove in the upper end face of the drill rod (2); the upper end of the ball (4) is abutted against the surface of the drill handle (1).

4. A one-way controllable cranial burr according to claim 3, characterized in that: a limiting ring (5) is arranged on the upper side of the rotary drum (3-2), and the limiting ring (5) is fixed on the drill rod (2); a circumferential sliding groove (5-1) is formed in the outer circumferential surface of the limiting ring (5); the limiting screw (6) is installed on the sleeve (3-1) through threaded connection, and the inner end of the limiting screw (6) penetrates through the wall of the sleeve (3-1) and then is installed in a sliding groove (5-1) on the limiting ring (5) in a sliding fit mode.

5. A one-way controllable skull micro-hole drill according to claim 4, characterized in that: and the sleeve (3-1) is also provided with a locking bolt (7) through threaded connection, and the inner end of the locking bolt (7) penetrates through the wall of the sleeve (3-1) and then abuts against the drill rod (2).

6. A one-way controllable cranial burr according to claim 1, characterized in that: the lower end of the drill rod (2) is provided with a drill bit (9) through a chuck (8).

7. A one-way controllable skull micro-hole drill according to claim 6, characterized in that: the drill bit (9) is a 3.5mm-5mm drill bit.

8. A one-way controllable skull micro-hole drill according to claim 6, characterized in that: and a limiter (10) is arranged on the drill bit (9).