CN102836003A

CN102836003A - Nail puller with sliding weight

Info

Publication number: CN102836003A
Application number: CN2012102923854A
Authority: CN
Inventors: 刘德俊
Original assignee: Suzhou Ruihua Hospital Co Ltd
Current assignee: Suzhou Ruihua Hospital Co Ltd
Priority date: 2012-08-17
Filing date: 2012-08-17
Publication date: 2012-12-26
Anticipated expiration: 2032-08-17
Also published as: CN102836003B

Abstract

The invention discloses a nail puller with a sliding weight. The nail puller comprises an upper arm, a lower arm, an upper jaw and a lower jaw, wherein the upper arm and the lower jaw are formed into a whole, while the lower arm and the upper jaw are formed into a whole; a slide rod is arranged on the upper arm or the lower arm, and provided with the sliding weight; and one end of the slide rod separated from the lower arm is provided with a stopper. According to the nail puller with the sliding weight provided by the scheme of the invention, the sliding weight is used to loosen a nail to be pulled in a knocking way, and the loosened nail is pulled out; the upper arm is provided with a runner; the lower arm is provided with an oscillating screw rod, and the end of the screw rod separated from the lower arm passes through the runner; the part of the screw rod extending out of the runner is provided with a nut matched with the screw rod, so that the clamping mechanism can position more accurately and more firmly; teeth in different directions are arranged in the upper and lower jaws, so that the nail puller has tensile friction and anti-rotation friction. Therefore, the nail puller is suitable for pulling out fixed nails in various modes, and is practical.

Description

A kind of pincer with sliding hammer

Technical field

The present invention relates to a kind of pincer, particularly a kind of band of being convenient to that the medical staple that is fixed in the sclerotin is extracted is slided the pincer of hammer, belongs to the medical instrument technical field.

Background technology

When the treatment fracture, the doctor can reset the bone of fracture portions usually, and uses some special instruments that fracture is fixed, and fixedly the time, can use some medical staples usually; By the time patient's bone healing; Then need these staples be taken out, the elastic nail that especially a kind of internal fixation is used is because the nail body of staple is " C " perhaps " S " sigmoid in tubular bone; Thereby be difficult to extract through rotation, can only pull out to such an extent that mode is taken out through beating; And the pincer that uses at present has only a pulling block to be used to provide impetus on the vice body, and clamp is not tight; Slippage causes getting the nail difficulty easily; And clamp mechanism is the form of buckle, and every further clamping all needs buckle to move a bigger displacement, uses very inconvenient; And the groove at the jaw position is and is horizontally set, and jaw has only tension frictional force, and not anti-spin friction power when therefore this pincer is used to choose screw, also is difficult to play good effect.

Summary of the invention

The present invention seeks to provides a kind of band of being convenient to that the medical staple that is fixed in the sclerotin is pulled out to slide the pincer of hammer for the deficiency that overcomes prior art.

For achieving the above object, the technical scheme that the present invention adopts is: a kind of pincer with sliding hammer comprises tong arm, following tong arm, upper clamp nozzle, lower clamp nozzle; Said upward tong arm and lower clamp nozzle are as a whole, and following tong arm and upper clamp nozzle are as a whole; The junction of said upward tong arm and lower clamp nozzle is hinged with the junction of following tong arm and upper clamp nozzle; Said upward tong arm or following tong arm are provided with pulling block; Said upward tong arm or following tong arm are provided with slide bar; Said slide bar is provided with can be along the sliding hammer of slide bar slip; An end that leaves down tong arm on the said slide bar is provided with block; The said tong arm of going up is provided with chute; Said tong arm down is provided with screw rod, and the other end of screw rod passes chute; Said screw rod can be along chute around the connecting portion swing of screw rod with following tong arm; The part that said screw rod stretches out chute is provided with the nut that matches with screw rod.

Preferably, said tong arm down is provided with contiguous block; Said screw rod is arranged on the contiguous block, and screw rod can wave around the connecting portion of screw rod and contiguous block.

Preferably, said slide bar is arranged on the contiguous block.

Preferably, the inner surface upper edge centrage of said upper clamp nozzle is provided with the upper clamp nozzle groove; The inner surface upper edge centrage of said lower clamp nozzle is provided with the lower clamp nozzle groove; Be respectively arranged with a plurality of upper clamp tooths and a plurality of lower clamp tooth on the inner surface of said upper clamp nozzle and lower clamp nozzle; Said upper clamp tooth and lower clamp tooth are interspersed.

Because the utilization of technique scheme, the present invention compared with prior art has advantage:

The pincer of the sliding hammer of the present invention program's band uses the mode of slide block bump that the staple that is pulled out is carried out shredding earlier, the staple that gets loose is extracted again, and this method is simply effective; Clamp mechanism employing nut cooperates with screw rod, makes that the location of stepping up is more accurate, firm; Be provided with the different pincers tooth of direction in upper clamp nozzle and the lower clamp nozzle, making has the existing tension frictional force of this pincer anti-spin friction power again, thereby is applicable to the staple of extracting various ways, very practical.

Description of drawings

Below in conjunction with accompanying drawing technical scheme of the present invention is described further:

Accompanying drawing 1 is the axonometric chart of an angle of the sliding pincer of hammering into shape of band of the present invention;

Accompanying drawing 2 is the axonometric chart of another angle of the sliding pincer of hammering into shape of band of the present invention;

Wherein: 1, go up tong arm; 2, following tong arm; 3, upper clamp nozzle; 4, lower clamp nozzle; 5, slide bar; 6, sliding hammer; 7, block; 8, chute; 9, screw rod; 10, nut; 11, contiguous block; 12, pulling block; 13, upper clamp nozzle groove; 14, lower clamp nozzle groove.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed description.

Accompanying drawing 1-2 is a kind of pincer with sliding hammer of the present invention, comprises tong arm 1, following tong arm 2, upper clamp nozzle 3, lower clamp nozzle 4; Said upward tong arm 1 is as a whole with lower clamp nozzle 4, and following tong arm 2 is as a whole with upper clamp nozzle 3; The junction of said upward tong arm 1 and lower clamp nozzle 4 is hinged with the junction of following tong arm 2 and upper clamp nozzle 3; The said tong arm 1 of going up is provided with pulling block 12; Said tong arm 2 down is provided with contiguous block 11; Said contiguous block 11 is provided with slide bar 5; Said slide bar 5 can be around the connecting portion swing of slide bar 5 with contiguous block 11; Said slide bar 5 is provided with can be along the sliding hammer 6 of slide bar 5 slips; An end that leaves down tong arm 2 on the said slide bar 5 is provided with block 7; The said tong arm 1 of going up is provided with chute 8; Said contiguous block 11 is provided with screw rod 9, and screw rod 9 can be along chute 8 around the connecting portion swing of screw rod 9 with contiguous block 11; The other end of screw rod 9 passes chute 8; The part that said screw rod 9 stretches out chute 8 is provided with the nut 10 that matches with screw rod 9; The inner surface upper edge centrage of said upper clamp nozzle 3 is provided with upper clamp nozzle groove 13; The inner surface of said upper clamp nozzle 3 is provided with the upper clamp tooth of a plurality of vertical distributions; The inner surface upper edge centrage of said lower clamp nozzle 4 is provided with lower clamp nozzle groove 14; The inner surface of said lower clamp nozzle 4 is provided with the lower clamp tooth of a plurality of cross direction profiles.

During the flexible fastening of choosing nail; Pincer is clamped by the afterbody of nail pulling, made the afterbody that is pulled out staple place upper clamp nozzle groove 13 and lower clamp nozzle groove 14, screw rod 9 is adjusted to suitable angle; The nut 10 of screwing makes upper clamp nozzle 3 and lower clamp nozzle 4 step up to be pulled out staple; The sliding hammer 6 that slides, loosening with sliding hammer 6 bump blocks 7 until being pulled out staple, hold pulling block 12 again and will be pulled out staple and pull out.

When choosing screw, pincer is clamped the afterbody that is pulled out screw, make the afterbody that is pulled out screw place upper clamp nozzle groove 13 and lower clamp nozzle groove 14, screw rod 9 is adjusted to suitable angle, the nut 10 of screwing makes upper clamp nozzle 3 and lower clamp nozzle 4 step up to be pulled out screw; Utilize the anti-spin friction power of the upper clamp tooth longitudinally in the upper clamp nozzle 3 that screw is screwed out gradually.

The pincer of the sliding hammer of the present invention program's band uses the mode of slide block 6 bumps that the staple that is pulled out is carried out shredding earlier, the staple that gets loose is extracted again, and this method is simply effective; Clamp mechanism employing nut 10 cooperates with screw rod 9, makes that the location of stepping up is more accurate, firm; Be provided with the different pincers tooth of direction in upper clamp nozzle 3 and the lower clamp nozzle 4, making has the existing tension frictional force of this pincer anti-spin friction power again, thereby is applicable to the staple of extracting various ways, very practical.

The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims

1. the pincer with sliding hammer comprises tong arm (1), following tong arm (2), upper clamp nozzle (3), lower clamp nozzle (4); Said upward tong arm (1) is as a whole with lower clamp nozzle (4), and following tong arm (2) is as a whole with upper clamp nozzle (3); The junction of said upward tong arm (1) and lower clamp nozzle (4) is hinged with the junction of following tong arm (2) and upper clamp nozzle (3); Said upward tong arm (1) or following tong arm (2) are provided with pulling block (12); It is characterized in that: said upward tong arm (1) or following tong arm (2) are provided with slide bar (5); Said slide bar (5) is provided with can be along sliding hammer into shape (6) that slide bar (5) slides; An end that leaves down tong arm (2) on the said slide bar (5) is provided with block (7); The said tong arm (1) of going up is provided with chute (8); Said tong arm (2) down is provided with screw rod (9), and the other end of screw rod (9) passes chute (8); Said screw rod (9) can be along chute (8) around the connecting portion swing of screw rod (9) with following tong arm (2); The part that said screw rod (9) stretches out chute (8) is provided with the nut (10) that matches with screw rod (9).

2. the pincer of the sliding hammer of band according to claim 1 is characterized in that: said tong arm (2) down is provided with contiguous block (11); Said screw rod (9) is arranged on the contiguous block (11), and screw rod (9) can wave around the connecting portion of screw rod (9) with contiguous block (11).

3. the pincer of the sliding hammer of band according to claim 2, it is characterized in that: said slide bar (5) is arranged on the contiguous block (11).

4. the pincer of the sliding hammer of band according to claim 1, it is characterized in that: the inner surface upper edge centrage of said upper clamp nozzle (3) is provided with upper clamp nozzle groove (13); The inner surface upper edge centrage of said lower clamp nozzle (4) is provided with lower clamp nozzle groove (14); Be respectively arranged with a plurality of upper clamp tooths and a plurality of lower clamp tooth on the inner surface of said upper clamp nozzle (3) and lower clamp nozzle (4); Said upper clamp tooth and lower clamp tooth are interspersed.