CN202497220U

CN202497220U - Kneecap restorer

Info

Publication number: CN202497220U
Application number: CN2012200185447U
Authority: CN
Inventors: 于杰; 肖林萍
Original assignee: NO 451 HOSPITAL PLA
Current assignee: NO 451 HOSPITAL PLA
Priority date: 2012-01-17
Filing date: 2012-01-17
Publication date: 2012-10-24
Anticipated expiration: 2022-01-17

Abstract

The utility model specially relates to a kneecap restorer, which belongs to the technology field of a medical apparatus. According to the prior kneecap restorer, the occupation space is large, and the restoration effect cannot be guaranteed. To solve the problems above, according to the utility model, the technology scheme is employed as following: the kneecap restorer comprises a control handle, a lifting bar, a fixed loop, an outer sleeve, a reset hook and a pulling bar; the lower end of the control handle is provided with an internal screw thread pipe; the upper segment of the outer wall is provided with a block groove; the internal screw thread pipe penetrate through the outer sleeve; the outer sleeve possesses a cylindrical structure; both the interior and the exterior of the outer sleeve are provided with block grooves; the fixed loop is fixedly arranged in the block groove at the outer side of the outer sleeve; several reset hooks are arranged along the circular ring of the fixed loop; the central section of each reset hook is connected with one end of the pulling bar, and the other end of the pulling bar is connected with the bottom of the lifting bar; an outside thread is arranged at the exterior of the pulling bar for cooperating with the internal thread of the control handle; and the lifting bar is connected with the internal screw thread pipe of the control handle through a thread. According to the utility model, the occupation space is small, and operation is convenient.

Description

A kind of patella positor

Technical field

This utility model belongs to technical field of medical instruments, relates in particular to a kind of patella positor.

Background technology

Mostly Patella fracture is direct violence, and comminuted fracture is more, and when operative reduction, positor in the past is the two point form positor, when handling comminuted fracture, need manyly be used reduction forceps, takies more space, and can not guarantee reset effect.

The utility model content

This utility model technical problem to be solved provides and a kind ofly can effectively guarantee reset effect, and patella positor easy and simple to handle.

In order to solve the problems of the technologies described above, the technical scheme that this utility model adopts is:

A kind of patella positor comprises control crank, lifting rod, retainer ring, outer sleeve, reseting hook, stayed pole, and said control crank upper end is solid shuttle shape structure; The lower end is provided with riffled tube, and its inner surface is a left-hand thread, and the outer wall epimere is provided with draw-in groove; Riffled tube is arranged in the outer sleeve, and outer sleeve is a round tube shape structure, the inside and outside draw-in groove that is equipped with; Said retainer ring is fixed in the draw-in groove in the outer sleeve outside, is provided with some reseting hooks that block the patella edge along the annulus of retainer ring, but bearing's light exercise of retainer ring and reseting hook; The reseting hook middle part is connected with said stayed pole one end, and the stayed pole other end is connected with the lifting rod bottom, and lifting rod is a solid tubes; The outside is provided with the external screw thread that can match with the female thread of control crank, and the riffled tube of lifting rod and control crank is through being threaded.

Above-mentioned reseting hook is six groups, and is uniformly distributed with setting along the annulus of retainer ring.

This utility model is with respect to prior art, its following advantage:

1. this utility model compact conformation, it is little to take up room, and handled easily is convenient.

2. this utility model adopts 6 groups of reseting hooks, can effectively guarantee reset effect.

Description of drawings

Fig. 1 is this utility model structural representation;

Wherein, 1-control crank, 2-lifting rod, 3-retainer ring, 4-outer sleeve, 5-reseting hook, 6-stayed pole, 7-patella.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment this utility model is further specified.

As shown in Figure 1, a kind of patella positor comprises control crank 1, lifting rod 2, retainer ring 3, outer sleeve 4, reseting hook 5, stayed pole 6; Said control crank 1 upper end is solid shuttle shape structure, and the lower end is provided with riffled tube, and its inner surface is a left-hand thread; The outer wall epimere is provided with draw-in groove, and riffled tube is arranged in the outer sleeve 4, and outer sleeve 4 is a round tube shape structure; The inside and outside draw-in groove that is equipped with; Said retainer ring 3 is fixed in the draw-in groove in outer sleeve 4 outsides, is provided with some reseting hooks 5 that block patella 7 edges along the annulus of retainer ring 3, but bearing's light exercise of retainer ring 3 and reseting hook 5; Reseting hook 5 middle parts are connected with said stayed pole 6 one ends; Stayed pole 6 other ends are connected with lifting rod 2 bottoms, and lifting rod 2 outsides are provided with the external screw thread that can match with the riffled tube of control crank 1, and the riffled tube of lifting rod 2 and control crank 1 is through being threaded.Above-mentioned reseting hook 5 is six groups, and is uniformly distributed with setting along the annulus of retainer ring 3.

During work lifting rod 2 is screwed in the operating grip 1; Outer sleeve 4 is inserted in operating grip 1; Utilize draw-in groove that it is stable, retainer ring 3 is fixed in the draw-in groove in outer sleeve 4 outsides, 6 groups of reseting hooks 5 are fixed on the retainer ring 3; But bearing's light exercise, 6 groups of stayed poles 6 are connected between reseting hook 5 and lifting rod 2 bottoms.When resetting, reseting hook 5 is caught on around the patella of fracture, turn operating grip 1, according to screw action, lifting rod 2 moves upward, and lifts stayed pole 6, tightens up reseting hook 5, and fixedly patella 7.

Claims

1. patella positor is characterized in that: comprise control crank (1), lifting rod (2), retainer ring (3), outer sleeve (4), reseting hook (5), stayed pole (6), said control crank (1) upper end is solid shuttle shape structure; The lower end is provided with riffled tube, and its inner surface is a left-hand thread, and the outer wall epimere is provided with draw-in groove; Riffled tube is arranged in the outer sleeve (4); Outer sleeve (4) is a round tube shape structure, and the inside and outside draw-in groove that is equipped with, said retainer ring (3) are fixed in the draw-in groove in outer sleeve (4) outside; Annulus along retainer ring (3) is provided with some reseting hooks (5) that block patella (7) edge; Retainer ring (3) and reseting hook (5) but bearing's light exercise, reseting hook (5) middle part is connected with said stayed pole (6) one ends, stayed pole (6) other end is connected bottom lifting rod (2); Lifting rod (2) outside is provided with the external screw thread that can match with the riffled tube of control crank (1), and the riffled tube of lifting rod (2) and control crank (1) is through being threaded.

2. according to the said a kind of patella positor of claim 1, it is characterized in that: said reseting hook (5) is six groups, and is uniformly distributed with setting along the annulus of retainer ring (3).