CN203483499U

CN203483499U - Long arm nail breaking device

Info

Publication number: CN203483499U
Application number: CN201320550102.1U
Authority: CN
Inventors: 宋朝晖; 白晓谊; 王凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2014-03-19
Anticipated expiration: 2023-09-05

Abstract

The utility model relates to a long arm nail breaking device, and belongs to the technical field of medical instruments. Through the technical scheme, the long arm nail breaking device comprises a breaking device body and a nail wing ejecting device, wherein the breaking device body is a rod-shaped body with a bent and widened front end; a nail wing groove is formed in the front end of the breaking device body; a push rod hole communicated with the nail wing groove is formed in the back end of a bent part at the front end of the breaking device body; the nail wing ejecting device comprises a nail wing push rod and a reset spring; the nail wing push rod is inserted in the push rod hole of the breaking device body; the front end of the nail wing push rod is positioned in the nail wing groove and corresponds to a broken nail wing, and the back end of the nail wing push rod is positioned on the exterior of the push rod hole and corresponds to a limited block on the breaking device body; the reset spring is sleeved at the middle part of the nail wing push rod; the front end of the reset spring ejects on a foot pace on the inner wall of the push rod hole, and the back end of the reset spring ejects on the step surface of the nail wing push rod. According to the long arm nail breaking device, the nail wing clamped in the nail wing groove can be ejected conveniently and quickly, so that the efficiency of spinal surgery is greatly improved, the labor intensity of medical staff is reduced, and the pains of patients are alleviated.

Description

A kind of long-armed nail fracturer

Technical field

This utility model relates to a kind of device of the unnecessary nail wing of long-armed nail for the metal spinal column internal fixation device that fractures, and belongs to technical field of medical instruments.

Background technology

Metal spinal column internal fixation device is the conventional apparatus for the treatment of lumbar vertebra compression fracture, and long-armed nail is the vitals of metal spinal column internal fixation device, and its structure as shown in Figure 1.After utilizing metal spinal column internal fixation device that the spinal column of fracture is fixing, need to use long-armed nail fracturer that the unnecessary nail wing of long-armed nail (more than 1 part of the fracture guiding groove of following closely the wing 3 in Fig. 1) is fractureed.The structure of the long-armed nail fracturer of tradition, as shown in Fig. 2～Fig. 5, is first blocked the unnecessary nail wing with the nail wing groove 7 on its front end face during use, then rotates fracturer body, makes to follow closely the wing 3 and fractures along fracture guiding groove 1.Because this long-armed nail fracturer is not followed closely wing liftout attachment, the unnecessary nail wing breaking is difficult to take out after being stuck in the nail wing groove on long-armed nail fracturer front end face, so just greatly extended and fractureed continuously the time of a plurality of nail wings, thereby increased medical personnel's labor intensity and patient's misery.

Utility model content

The purpose of this utility model is the drawback for prior art, and a kind of improved long-armed nail fracturer is provided, and to improve operation efficiency, reduces medical personnel's labor intensity, alleviates patient's misery.

Problem described in the utility model realizes with following technical proposals:

A kind of long-armed nail fracturer, it comprises fracturer body and nail wing liftout attachment, described fracturer body is the rhabodoid that front end bends and broadens, on its front end face, be provided with nail wing groove, the rear end of fracturer body front end bending part is provided with and the push-rod hole of following closely wing groove and communicating, described nail wing liftout attachment comprises nail wing push rod and back-moving spring, described nail wing push rod is inserted in the push-rod hole of fracturer body, its front end is positioned at nail wing groove corresponding with the nail wing being fractureed, it is outside and corresponding with the limited block on fracturer body that rear end is positioned at push-rod hole, described back-moving spring is enclosed within nail wing push rod middle part, its front end withstands on the halfpace on push-rod hole inwall, rear end withstands on the cascaded surface of nail wing push rod.

Above-mentioned long-armed nail fracturer, is provided with fenestra on the upper cell wall of described nail wing groove and lower cell wall, is provided with nail wing intermediate plate in two fenestras.

Above-mentioned long-armed nail fracturer, described limited block is connected with fracturer body by screw.

This utility model has been set up nail wing liftout attachment on the basis of the long-armed nail fracturer of tradition, utilize this device easily and quickly the nail wing being stuck in nail wing groove to be ejected, greatly improve spinal operation efficiency, reduced medical personnel's labor intensity, alleviated patient's misery.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, this utility model is further illustrated.

Fig. 1 is the structural representation of long-armed nail;

Fig. 2 is the front view of traditional long-armed nail fracturer;

Fig. 3 is the top view of traditional long-armed nail fracturer;

Fig. 4 is that A is to view;

Fig. 5 is B-B cutaway view;

Fig. 6 is front view of the present utility model;

Fig. 7 is that C is to view;

Fig. 8 is top view of the present utility model;

Fig. 9 is D-D cutaway view;

Figure 10 is the state that this utility model fractures after the nail wing;

Figure 11 is that this utility model ejects nail wing schematic diagram.

In figure, each symbol is: 1, fracture guiding groove; 2, locating groove; 3, the nail wing; 4, double-screw bolt; 5, nail bar; 6, back-moving spring; 7, nail wing groove; 8, nail wing intermediate plate; 9, nail wing push rod; 10, limited block, 11, fracturer body.

The specific embodiment

Referring to Fig. 6～Figure 11, this utility model comprises fracturer body 11 and nail wing liftout attachment, and nail wing liftout attachment comprises back-moving spring 6, nail wing push rod 9 and limited block 10.

During use, first with the nail wing groove 7 on fracturer body 11 front end faces, block the unnecessary nail wing 3, and make the position of two nail wing intermediate plate 8 inflection be clipped in locating groove 2 places of following closely the wing 3, after the anti-non-magnetic shim wing 3 fractures, drop to it patient.Then rotate fracturer body 11, make to follow closely the wing 3 and fracture along fracture guiding groove 1.Nail is after the wing 3 fractures, and operator is with hands ejector pin wing push rod 9 forward, makes to follow closely the elastic force that wing push rod 9 overcomes back-moving spring 6 and moves forward, and the nail wing 3 is ejected from following closely in wing groove 7.The nail wing 3 drops out rear operator and discharges nail wing push rod 9, and nail wing push rod 9 resets under the effect of back-moving spring 6, operator's next nail wing 3 that continues to fracture.

Limited block 10 is connected with fracturer body 11 by screw, when needs are cleared up or keeped in repair nail wing liftout attachment, unloads lower position block 10 and just nail wing push rod 9 and back-moving spring 6 can be taken out in push-rod hole.

Claims

1. a long-armed nail fracturer, it is characterized in that, it comprises fracturer body (11) and nail wing liftout attachment, the rhabodoid that described fracturer body (11) bends and broadens for front end, on its front end face, be provided with nail wing groove (7), the rear end of fracturer body (11) front end bending part is provided with and the push-rod hole of following closely wing groove (7) and communicating, described nail wing liftout attachment comprises nail wing push rod (9) and back-moving spring (6), described nail wing push rod (9) is inserted in the push-rod hole of fracturer body (11), its front end is positioned at nail wing groove (7) corresponding with the nail wing (3) being fractureed, it is outside and corresponding with the limited block (10) on fracturer body (11) that rear end is positioned at push-rod hole, described back-moving spring (6) is enclosed within nail wing push rod (9) middle part, its front end withstands on the halfpace on push-rod hole inwall, rear end withstands on the cascaded surface of nail wing push rod (9).

2. a kind of long-armed nail fracturer according to claim 1, is characterized in that, on the upper cell wall of described nail wing groove (7) and lower cell wall, is provided with fenestra, is provided with nail wing intermediate plate (8) in two fenestras.

3. a kind of long-armed nail fracturer according to claim 1 and 2, is characterized in that, described limited block (10) is connected with fracturer body (11) by screw.