CN206183352U - Long -neck fluid pressure type jaw internal fixing device - Google Patents

Abstract

The utility model relates to a long -neck fluid pressure type jaw internal fixing device, including U type staple, be used for the pincer attack device of fixed U type staple, the pincer attack device constitute with hydraulic push rod mechanism by the long neck pliers body, wherein, the long neck pliers body personally experiences sth. Part of the body two by the pincers body no. 1, pincers, be formed by connecting through axle joint no. 1 the acrogenesis staple fixed slot of the long neck pliers body for fixed U type staple, a hydraulic push rod mechanism, through the tail end hub connection of branch, two and the pincers bodies no. 1, the pincers body no. 2, this hydraulic push rod mechanism is connected with the handle respectively, the handle passes through handle branch, two and articulates with the tail end that clamps the body no. 1, the pincers body no. 2 respectively, forms a four -bar linkage, U type staple no. 2 end have the anchor angle. The utility model has the characteristics of use simply, swiftly, it is little to the normal structure wound.

Description

Long-neck fluid pressure type jawbone internal fixation device

Technical field

The utility model is related to a kind of long-neck fluid pressure type jawbone internal fixation device, belongs to fracture operation medicine equipment.

Background technology

Jaw fracture often follows closely fixed fracture site, the fixed jawbone that such as Fig. 1 is followed closely using titanium plate, titanium with titanium plate, titanium in medical treatment Shown in the structural representation of fracture.The broken ends of fractured bone need to be sufficiently separated surrounding tissue during installation so that the broken ends of fractured bone fully exposes, so that titanium plate is pasted Bone face is closed, meanwhile, titanium nail is screwed into fracture site by artificial vertical in bone face.

Conventional Internal immobilization device, such as：Titanium plate, titanium nail, are completed by craft or micro motor auxiliary more.But due to electronic Motor cannot be transformed into vertical angle, it is difficult to which the upper mandibular deep for completing otch in direct oral cavity laterallys secure.Hand tools and Micro motor aid is cumbersome using process, need to often peel off masseter, and needs experienced doctor and the several assistants can Complete.

The characteristics of Manual hydraulic grip has easy to operate, clamping accurate, but be generally used for industry, such as application number： A kind of manually operated hydraulic power tongs instrument of 201410267769.X offers is a kind of simple and can provide high pressure to work , mainly be located in tubular handle for hydraulic cylinder assembling by the hydraulic power tongs hand-held tool of part, and lower section is mobile to be gripped to allow user to press Hydraulic cylinder can be promoted to act during portion, and by workpiece can be more firm be clamped between the sawtooth in upper bottom jaw portion, it has height Reliability, low-maintenance, low complex degree and easily use and low cost advantage.

Existing hydraulic tongs is not suitable for medicine equipment.

The content of the invention

Technical problem to be solved in the utility model is：A kind of long-neck fluid pressure type jawbone internal fixation device is provided, is utilized The structural principle of hydraulic tongs, carries out mandibular fracture end and fixes, not only low-maintenance using U-shaped steel nail, and easy to operate.

The utility model technical problem is solved by following proposal：A kind of long-neck fluid pressure type jawbone internal fixation device, including it is U-shaped Fixed nail, the pincer attack device for fixing U-shaped fixed nail, described pincer attack device is by long-neck caliper and hydraulic mandril mechanism structure Into, wherein,

One long-neck caliper, by caliper one, caliper two, is formed by connecting by axis joint one, in the head end of the long-neck caliper U-shaped nail fixing groove is formed, for fixing U-shaped fixed nail；

One hydraulic mandril, is connected through expansion link one, two with the tail end axle of caliper one, caliper two respectively, the hydraulic mandril with Handle is connected；

Described handle is hinged by one, two tail end respectively with caliper one, caliper two of handle pole, forms a double leval jib Mechanism；

There is anchor angle at described two ends of U-shaped fixed nail.

Application method of the present utility model and operation principle are：

After hydraulic mandril connects external hydraulic power supply, under hydraulic power effect, expansion link one, two is outwards ejected, band Moving caliper head end is acted around axis joint one, U-shaped fixed nail groove is opened or is closed, and is used to install U-shaped fixed nail when opening, and is installed The caliper head end for having U-shaped fixed nail is clamped under hydraulic action, and the two ends of U-shaped fixed nail press-in jaw bones broken line are clamped Fixed, the anchor angle insertion cortex of bone of U-shaped fixed nail plays the stablizing effect of simple or provisional fixed fracture end.

On the basis of such scheme, the anchor angle of described U-shaped fixed nail is bottom external diameter 0.5-1mm, the cone of 4-8mm long Type structure, has 1-8 anchor angle respectively on every piece of arm of U-shaped fixed nail.

The utility model is advantageous in that：Simple, quick, the small advantage of normal tissue wound with using.

Brief description of the drawings

Accompanying drawing 1, the structural representation of the fixed jaw fracture followed closely using titanium plate, titanium；

Accompanying drawing 2, the utility model structural representation；

Accompanying drawing 3, U-shaped fixed pin structure schematic diagram；

Accompanying drawing 4, the utility model application method schematic diagram one；

Accompanying drawing 5, the utility model application method schematic diagram two；

1 --- long-neck caliper；

11 --- caliper one；12 --- caliper two；13 --- axis joint；

14 --- U-shaped nail fixing groove；15th, 16 --- axle two, three；

2 --- U-shaped fixed nail；

21 --- U-shaped body 21；22nd, 23 --- left and right anchor angle；

3 --- hydraulic mandril；31st, 32 --- expansion link one, two；

4 --- handle, 41,42 --- handle pole one, two.

Specific embodiment

Refer to the utility model structural representation of accompanying drawing 2 and the U-shaped fixed pin structure schematic diagram of accompanying drawing 3：

A kind of long-neck fluid pressure type jawbone internal fixation device, as shown in figure 1, including U-shaped fixed nail, for fixing U-shaped fixed nail Pincer attack device, described pincer attack device is made up of long-neck caliper 1 and hydraulic mandril mechanism 3, wherein,

One long-neck caliper 1, by caliper 1, caliper 2 12, is formed by connecting by axis joint 1, in the long-neck caliper 1 head end forms U-shaped nail fixing groove 14, for fixing U-shaped fixed nail 2；

One hydraulic mandril 3, respectively through expansion link one, 2 31,32 and caliper 1, the tail end warp beam two, three of caliper 2 12 15th, 16 axles connection, the hydraulic mandril 3 is connected with handle 4, and caliper 1, caliper 2 12 are supported by expansion link one, 2 31,32 Tail end, it is flared out under hydraulic action；

Described handle 4 by handle pole one, 2 41,42 respectively with caliper 1, the tail end warp beam two of caliper 2 12, 3 15,1 is hinged, and forms a quadric chain；

As shown in Fig. 2 the rivet nut of described U-shaped fixed nail 2 is the U-shaped body 21 of sheet for having one fixed width, in U-shaped body 21 There is inside left and right anchor angle 22,23 at two ends bottom.

The structure of width and anchor angle according to U-shaped fixed nail is divided into different models, and anchor angle is bottom external diameter 0.5-1mm, The cone-shaped structure of 4-8mm long, has 1-8 anchor angle, width and length and anchor per arm respectively on every piece of arm of U-shaped fixed nail Angle number and arrangement are adapted.

Such as the utility model application method schematic diagram one of accompanying drawing 4 and the institute of 5 the utility model application method schematic diagram of accompanying drawing two Show：

Fig. 4 is the two ends that the utility model clamps jaw bones broken line, and U-shaped fixed nail is the hard titanium alloy for having anchor angle, is made With pincer attack device, external hydraulic means is connected, the two ends of jaw bones broken line are clamped fixation with U-shaped fixed nail 2, it is U-shaped The anchor angle insertion cortex of bone of fixed nail, as shown in figure 5, long-neck fluid pressure type jawbone internal fixation device is connected into external hydraulic means, U-shaped fixed nail is placed in the draw-in groove of fixator head end, the two ends of jaw bones broken line are clamped, startup hydraulic means makes U-shaped solid Surely the anchor angle of nail 2 is embedded in cortex of bone, and fracture site is fixed, such as Fig. 5.The collocation of many pieces of fixed nails is used, and can play simple Or the stablizing effect of provisional fixed fracture end, it is particularly suited for the larger jaw fracture in fracture face.

After hydraulic mandril mechanism 3 connects external hydraulic power supply, under hydraulic power effect, the head end of long-neck caliper 1 is driven Action, makes U-shaped nail groove 14 open or close, and is used to install U-shaped fixed nail 2 when opening, and is provided with the long neck pliers of U-shaped fixed nail 2 The head end of body 1 is clamped under hydraulic action, and U-shaped fixed 2 two ends for being pressed into jaw bones broken line of following closely are clamped into fixation, U-shaped fixation The anchor angle insertion cortex of bone of nail, plays the stablizing effect of simple or provisional fixed fracture end.

Claims (3)

1. a kind of long-neck fluid pressure type jawbone internal fixation device, including U-shaped fixed nail, the pincer attack device for fixing U-shaped fixed nail, its It is characterised by, described pincer attack device is made up of long-neck caliper 1 and hydraulic mandril mechanism 3, wherein,

One long-neck caliper 1, by caliper 1, caliper 2 12, is formed by connecting by axis joint 1, in the long-neck caliper 1 Head end forms U-shaped nail fixing groove 14, for fixing U-shaped fixed nail 2；

One hydraulic mandril 3, is connected, the hydraulic pressure through expansion link one, 2 31,32 with the tail end axle of caliper 1, caliper 2 12 respectively Push rod 3 is connected with handle 4；

Handle 4 is hinged by one, 2 41,42 tail end respectively with caliper 1, caliper 2 12 of handle pole, forms a double leval jib Mechanism；

There is anchor angle at described 2 two ends of U-shaped fixed nail.

2. long-neck fluid pressure type jawbone internal fixation device according to claim 1, it is characterised in that described U-shaped fixed nail Anchor angle is the cone-shaped structure of bottom external diameter 0.5-1mm, 4-8mm long, has 1-8 anchor respectively on every piece of arm of U-shaped fixed nail Angle.

3. long-neck fluid pressure type jawbone internal fixation device according to claim 1 and 2, it is characterised in that described U-shaped fixed nail Rivet nut be the U-shaped body of sheet, have inside anchor angle in the bottom of U-shaped body.