CN204618392U - One gets intramedullary pin pincers - Google Patents

Abstract

The utility model discloses one and get intramedullary pin pincers, comprise tong arm, lower tong arm, upper clamp nozzle, lower clamp nozzle, slide bar, screw rod; Upper tong arm and lower clamp nozzle as a whole, lower tong arm and upper clamp nozzle as a whole; Upper tong arm is provided with chute, and slide bar one end is connected with lower tong arm, and can swing around junction, and the slide bar other end is provided with block, and slide bar is provided with sliding hammer; Screw rod one end is connected with lower tong arm, and the other end passes chute and stretches out detent ends and is provided with nut; Upper clamp nozzle and lower clamp nozzle medial surface centrally line are respectively equipped with upper clamp nozzle groove and lower clamp nozzle groove, and upper clamp nozzle stretches out forward L-shaped, can encase lower clamp nozzle during occlusion; Upper clamp nozzle and lower clamp nozzle rear end are provided with a through hole; The afterbody of intramedullary pin is placed in upper clamp nozzle groove and lower clamp nozzle groove by a kind of intramedullary pin pincers of getting described in the utility model, locking nut, clashing into block by sliding hammer makes intramedullary pin extract after shredding from sclerotin, and this pincers arbitrarily can rotate around intramedullary pin afterbody, handled easily and don't can get loose.

Description

One gets intramedullary pin pincers

Technical field

The one that this utility model relates to medical instruments field gets intramedullary pin pincers.

Background technology

When treating fracture, the position of fracture can reset by doctor usually, and is fixed by the fracture after reset by medical apparatus and instruments; When fixing, usually can use some medical staples, lose after knitting until patient, then need these staples to take out; Especially a flexible intramedullary nail for internal fixtion, the rivet nut due to staple is " C " or " S " sigmoid in tubular bone, is thus difficult to extract by rotating, and can only take out by beating the mode of pulling out; And current and that this utility model is the most close prior art is shown in that Fig. 1 and patent document are as application number: CN201220408253.9, patent discloses/notification number: described in CN202821589U, namely by after the occlusion that interlocks with longitudinal upper clamp tooth 17 and horizontal lower clamp tooth 18, by the snap-lock of nut 19 by upper clamp nozzle 21 and lower clamp nozzle 22, then by sliding hammer 20, staple is extracted after shredding from sclerotin.

Weak point is: due to get internal fixation nail operation in need often to adjust power thrusts, also the direction of often rotating pincers is namely needed, nut 19 must be unclamped whenever need rotating the direction of pincers, unclamp the occlusion of upper clamp nozzle 21 and lower clamp nozzle 22, after the adjustment of direction again fastening nut 19 by snap-lock, then with sliding hammer 20 shredding until extract; In addition, carry out increasing friction force by occlusion mode of interlocking with longitudinal upper clamp tooth 17 and horizontal lower clamp tooth 18 and be engaged fixing, must can ensure occlusion firmly by instrument fastening nut 19, free-hand cannot operation, it is not very convenient to operate; When being exactly with this forceps operation again, staple external part needs to expose 10-15mm can be guaranteed occlusion and be engaged solid and reliable, and exposing 10-15mm can bring interference to patient's daily life.

Utility model content

The technical problem that this utility model mainly solves is to provide one and gets intramedullary pin pincers, its applicable the clinical of latest model intramedullary pin patent is made to get tack operation, intramedullary pin external part is made to be reduced to 3-5mm long, patient can not be caused to interfere collide with, firm intramedullary pin afterbody external part can be clamped after only needing free-hand lock nut during clinical operation, and again just power thrusts must can not adjusted easily in tightening nut situation, improve patients ' life quality and facilitate clinical manipulation.

For solving the problems of the technologies described above, the technical problem that this utility model mainly solves is to provide one and gets intramedullary pin pincers, comprises tong arm, lower tong arm, upper clamp nozzle, lower clamp nozzle, slide bar, screw rod; Described upper tong arm and lower clamp nozzle as a whole, described lower tong arm and upper clamp nozzle as a whole; Described upper tong arm is provided with chute, and described slide bar one end is connected with lower tong arm, and can swing around junction, and the described slide bar other end is provided with block, and described slide bar is provided with sliding hammer; Described screw rod one end is connected with lower tong arm, and the other end passes chute and stretches out detent ends and is provided with nut; Described upper clamp nozzle and lower clamp nozzle medial surface centrally line direction are respectively equipped with upper clamp nozzle groove and lower clamp nozzle groove, and described upper clamp nozzle groove and lower clamp nozzle groove are respectively a semi-circular groove, and described upper clamp nozzle stretches out forward L-shaped, can encase lower clamp nozzle during occlusion; Described upper clamp nozzle and lower clamp nozzle rear end and be provided with a through hole perpendicular to centerline direction, and through hole and hollow cylinder connect.

Preferably, the hollow cylinder diameter that described upper clamp nozzle groove and lower clamp nozzle groove are combined into is: ￠ 2-4mm.

Preferably, described upper clamp nozzle and lower clamp nozzle rear end and be provided with a through-hole diameter perpendicular to centerline direction and be: ￠ 4-10mm.

Preferably, described upper clamp nozzle and lower clamp nozzle rear end and be perpendicular to the centre-to-centre spacing lower clamp nozzle end face distance that centerline direction is provided with a through hole: 3-5mm.

The beneficial effects of the utility model are: be applicable to the clinical of latest model intramedullary pin patent and get tack operation, intramedullary pin external part is made to be reduced to 3-5mm long, patient can not be caused to interfere collide with, firm intramedullary pin afterbody external part can be clamped after only needing free-hand lock nut during clinical operation, and again just power thrusts must can not adjusted easily in tightening nut situation, improve patients ' life quality and facilitate clinical manipulation.

Accompanying drawing explanation

Fig. 1 is the structural representation getting intramedullary pin pincers in prior art;

Fig. 2 is the structural representation getting intramedullary pin pincers described in the utility model;

Fig. 3 is the example structure schematic diagram getting intramedullary pin pincers described in the utility model;

Wherein, 1, upper tong arm; 2, lower 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; 15, through hole; 16, Intramedullary nail; 17, longitudinal upper clamp tooth; 18, horizontal lower clamp tooth; 19, nut; 20, sliding hammer; 21, upper clamp nozzle; 22, lower clamp nozzle.

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.

Embodiment of the present utility model as Figure 2-3, one gets intramedullary pin pincers, comprises tong arm 1, lower tong arm 2, upper clamp nozzle 3, lower clamp nozzle 4, slide bar 5, screw rod 9; Described upper tong arm 1 is as a whole with lower clamp nozzle 4, and described lower tong arm 2 is as a whole with upper clamp nozzle 3; Described upper tong arm 1 is provided with chute 8, and described slide bar 5 one end is connected with lower tong arm 2, and can swing around junction, and described slide bar 5 other end is provided with block 7, and described slide bar 5 is provided with sliding hammer 6; Described screw rod 9 one end is connected with lower tong arm 2, and the other end passes chute 8 and stretches out chute 8 end and is provided with nut 10; Described upper clamp nozzle 3 and lower clamp nozzle 4 medial surface centrally line direction are respectively equipped with upper clamp nozzle groove 13 and lower clamp nozzle groove 14, described upper clamp nozzle groove 13 is respectively a semi-circular groove with lower clamp nozzle groove 14, and described upper clamp nozzle 3 stretches out forward L-shaped, can encase lower clamp nozzle 4 during occlusion; Described upper clamp nozzle 3 and lower clamp nozzle 4 rear end and be provided with a through hole 15 perpendicular to centerline direction, and through hole 15 and hollow cylinder connect; The hollow cylinder diameter that described upper clamp nozzle groove 13 and lower clamp nozzle groove 14 are combined into is: ￠ 4mm; Described upper clamp nozzle 3 and lower clamp nozzle 4 rear end and be provided with through hole 15 diameter perpendicular to centerline direction and be: ￠ 8mm; Described upper clamp nozzle 3 and lower clamp nozzle 4 rear end and be perpendicular to centre-to-centre spacing lower clamp nozzle 4 end face distance that centerline direction is provided with a through hole 15: 5mm.

Described in the utility model get intramedullary pin pincers work process as follows:

In figure 3, the afterbody external part of Intramedullary nail 16 is placed in upper clamp nozzle groove 13 and lower clamp nozzle groove 14, locking nut 10, rotates intramedullary pin pincers direction, clash into block 7 by sliding hammer 6 and intramedullary pin is extracted after shredding from sclerotin.

One described in the utility model gets intramedullary pin pincers, reduce the afterbody external part length requirement of Intramedullary nail 16, reduce the rate of tension to patient skin, avoid due to longer the caused interference to patient's daily life of conventional intramedullary nails external part simultaneously; The afterbody external part of Intramedullary nail 16 is placed in upper clamp nozzle groove 13 and lower clamp nozzle groove 14 internal locking nut 10, can rotate adjustment power thrusts easily arbitrarily, greatly facilitate clinical manipulation; Remain the advantage of present technology, use sliding hammer 6 to clash into block 7 and Intramedullary nail 16 is conveniently extracted after shredding from sclerotin.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize this utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (4)

1. get intramedullary pin pincers for one kind, comprise tong arm (1), lower tong arm (2), upper clamp nozzle (3), lower clamp nozzle (4), slide bar (5), screw rod (9); Described upper tong arm (1) is as a whole with lower clamp nozzle (4), and described lower tong arm (2) is as a whole with upper clamp nozzle (3); Described upper tong arm (1) is provided with chute (8), and described slide bar (5) one end is connected with lower tong arm (2), and can swing around junction, and described slide bar (5) other end is provided with block (7), and described slide bar (5) is provided with sliding hammer (6); Described screw rod (9) one end is connected with lower tong arm (2), and the other end passes chute (8) and stretches out chute (8) end and is provided with nut (10); It is characterized in that described upper clamp nozzle (3) and lower clamp nozzle (4) medial surface centrally line direction are respectively equipped with upper clamp nozzle groove (13) and lower clamp nozzle groove (14), described upper clamp nozzle groove (13) and lower clamp nozzle groove (14) are respectively a semi-circular groove, and described upper clamp nozzle (3) stretches out forward L-shaped, lower clamp nozzle (4) during occlusion, can be encased; Described upper clamp nozzle (3) and lower clamp nozzle (4) rear end and be provided with a through hole (15) perpendicular to centerline direction, and through hole (15) and hollow cylinder connect.

2. intramedullary pin of getting according to claim 1 clamps, and it is characterized in that: the hollow cylinder diameter that described upper clamp nozzle groove (13) and lower clamp nozzle groove (14) are combined into is: ￠ 2-4mm.

3. according to claim 1ly get intramedullary pin pincers, it is characterized in that: described upper clamp nozzle (3) and lower clamp nozzle (4) rear end and be provided with a through hole (15) diameter perpendicular to centerline direction and be: ￠ 4-10mm.

4. according to claim 1 or 3, get intramedullary pin pincers, it is characterized in that: described upper clamp nozzle (3) and lower clamp nozzle (4) rear end and be perpendicular to centre-to-centre spacing lower clamp nozzle (4) end face distance that centerline direction is provided with a through hole (15): 3-5mm.