CN101791242B

CN101791242B - Sacrum spreader

Info

Publication number: CN101791242B
Application number: CN201010130308XA
Authority: CN
Inventors: 张英泽; 张奇; 秦士吉; 陈伟
Original assignee: BEIJING NATONG INVESTMENT Co Ltd
Current assignee: Beijing Naton Medical Technology Holdings Co Ltd
Priority date: 2008-09-05
Filing date: 2008-09-05
Publication date: 2011-08-24
Anticipated expiration: 2028-09-05
Also published as: CN101791242A

Abstract

The invention discloses a sacrum spreader which relates to a sacrum fracture spreading and connecting appliance, belongs to the technical field of orthopaedic bone-setting appliances and is used for solving the problem that a special spreading appliance for treating sacrum pressing fracture and the like lacks. The sacrum spreader is a strip-shaped plate; and tack holes are respectively distributed at two ends of the plate surface. The strip-shaped plate can be in a laterally and movably abutting structure, wherein the movable abutting can be articulation, thread spinning or trough plate inserting or other types; and symmetrical sacrums can be spread by elastic deformation or telescopic displacement. The sacrum spreader has concise integral model and diversified structural forms, is easy to be attached to the sacrums and easy to select, install and insert according to the operating requirement, is convenient and accurate to adjust the spreading degree, well meets the spreading and connecting practical requirement of sacrum pressing fracture and the like, can substantially shorten the time consumption of operations and improve the operation effect and is suitably used as an appliance for treating the sacrum pressing fracture and the like.

Description

Rumpbone dilator

Technical field

The present invention relates in the orthopaedics fracture of the sacrum support and connect utensil, belong to orthopaedics synthetism utensil technical field.

Background technology

In the treatment of fractures processes such as rumpbone place generation squash type, strut and make rumpbone to be on required degree of the strutting position to rumpbone.At present, owing to the utensil that struts of the suitable special use of shortage, the operation of performing the operation for this class has brought very big inconvenience, often therefore prolongs operating time and has influence on surgical effect, for this reason, should develop the Rumpbone dilator tool.

Summary of the invention

The purpose of this invention is to provide a kind of Rumpbone dilator, to lack the special-purpose problem that struts utensil in the treatments such as solution rumpbone squash type fracture.

The alleged problem of the present invention realizes with following technical scheme:

A kind of Rumpbone dilator is the strip plate, and plate face middle section raises up, and plate face two ends are placed with the nail hole respectively.

Above-mentioned Rumpbone dilator, the inboard in the nail hole at described plate face two ends have additional the retaining nail respectively.

Above-mentioned Rumpbone dilator, described strip plate is separated into left and right plate, is movably hinged by hinge hole, jointed shaft between left plate, the right panel, is placed with the screw via hole respectively on the hinge hole hole wall of left and right plate, and jointed shaft is provided with screwed hole.

Above-mentioned Rumpbone dilator, described strip plate is separated into left and right plate, spin by inner screw, external screw rod screw thread between left side plate, the right panel, the tail end of two screw rods is inserted into respectively in the bar hole of left plate, the setting of right panel coupling, fixedly connected by bearing pin between one screw rod tail end and left plate or the right panel, another screw rod tail end is provided with cannelure, and there is trip bolt at corresponding cannelure place on the bar hole hole wall of right panel or left plate.

Above-mentioned Rumpbone dilator, described strip plate is separated into left and right plate, spin by external screw rod and middle swivel nut screw thread between left side plate, the right panel, the tail end of two external screw rods connects with the vertical bent plate of left plate, right panel respectively, front end spins with the left and right end of middle swivel nut respectively, the thread rotary orientation of the left and right end screw of middle swivel nut is opposite, and the thread rotary orientation of two external screw rods is also opposite.

Above-mentioned Rumpbone dilator has the awl point on the inner plate surface of described two vertical bent plates.

Above-mentioned Rumpbone dilator, described left plate, right panel symmetry are outward-dipping, are splayed, and returning plate is set up in the vertical bent plate below on described left plate, the right panel, on the returning plate plate face nail hole is arranged.

Above-mentioned Rumpbone dilator, described strip plate is separated into left and right plate, in the separation termination of left and right plate one have the rectangular aperture groove, another rectangle that has coupling slides gusset, has the Long Circle via hole on the bottom land wall of rectangular aperture groove, rectangle slide be placed with on the gusset nail hole.

The present invention utilizes the distortion of strip plate or retractility displacement to strut symmetric rumpbone, moulded succinct, be easy to attach and be fixed on the rumpbone, structural shape is various, is easy to choose according to instructions for use, install, snap in, degree of strutting is easy to adjust, accurate, well satisfied the treatment demand of rumpbone squash type fracture etc., it is consuming time significantly to reduce operation, improves surgical effect, suits to use as therapeutic appliance such as rumpbone squash type fracture.

Description of drawings

Fig. 1 is embodiment 1 structural representation;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is embodiment 2 structural representations;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is embodiment 3 structural representations;

Fig. 6 is the vertical view of Fig. 5;

Fig. 7 is embodiment 4 structural representations;

Fig. 8 is the vertical view of Fig. 7;

Fig. 9 is embodiment 5 structural representations;

Figure 10 is the vertical view of Fig. 9;

Figure 11 is embodiment 6 structural representations;

Figure 12 is the vertical view of Figure 11;

Figure 13 is embodiment 7 structural representations;

Figure 14 is the vertical view of Figure 13.

The parts label is respectively in the accompanying drawing: strip plate 1, nail hole 2, retaining nail 3, jointed shaft 4, screw via hole 5, screwed hole 6, inner screw 7, external screw rod 8, left external screw rod 8-1, right external screw rod 8-2, bearing pin 9, cannelure 10, trip bolt 11, rectangular aperture groove 12, rectangle slide gusset 13, Long Circle via hole 14, nail hole 15, screw 16, middle swivel nut 17, vertical bent plate 18, awl point 19, returning plate 20, undercut 21, locknut 22.

Consult 1,2.Embodiment 1 shown in Fig. 1,2 is the basic structure pattern of the present invention, and promptly dilator is the strip plate 1 with certain width and length, and plate face middle section raises up, form arc, arc angle can be 0～120 °, and plate face two ends are placed with nail hole 2 respectively, and every end is arranged usually 4 and followed closely the hole.During use, the corresponding symmetric rumpbone end face in the two ends of strip plate 1 hammers into the implantation nail by nail hole 2 two ends is fixed on the symmetric rumpbone end face; Protruding eminence at strip plate 1 applies downward pressure afterwards, and two ends stretch out symmetric rumpbone is strutted when it is flattened, and makes rumpbone return to suitable aperture position and keeps on this position.Strip plate 1 is the metal material plate.

Consult Fig. 3,4.Embodiment 2 with the difference of embodiment 1 is, the inboard in the nail hole 2 at plate face two ends is set up retaining nail 3 respectively, and the quantity of the retaining nail 3 of each inboard can be 2～5, is symmetrically distributed along the width of plate.Make retaining nail 3 be stuck in symmetrical rumpbone inside top face place during use earlier, apply strip plate that downforce makes projection afterwards and flatten and strut symmetrical rumpbone, the nail hole 2～5 by two ends when degree of strutting is suitable hammers into implants nail, and rumpbone is fixed on suitable strutting on the position.

Consult Fig. 5,6.Fig. 5 is the A-A cutaway view of Fig. 6 simultaneously.Among the embodiment 3, strip plate 1 is separated into left and right plate, is movably hinged by hinge hole, jointed shaft 4 between the separation termination of left and right plate, is placed with screw via hole 5 respectively on the hinge hole hole wall of left and right plate, the quantity of arranging among the embodiment 3 is 3, and jointed shaft 4 is provided with screw 6.During use, be fixed on the symmetric rumpbone end face by the outer end of nail hole 2 left and right plate, apply downforce and make the outer support that flattens of hinged left and right plate, treat that rumpbone struts when suiting aperture, the screwed hole 6 inward turning people screws 16 of screw via hole 5 on jointed shaft 4 by suitable location are fixed on suitable pressing with left and right plate and strut on the position.

Consult Fig. 7,8.Among the embodiment 4, strip plate 1 also is separated into left and right plate, distinguishes to spinning by inner screw 7, external screw rod 8 screw threads between left plate, the right panel.Have external screw thread on the body of rod of external screw rod 8, the screwed hole of coupling is arranged in the inner screw 7.The tail end of two screw rods is inserted into respectively in the bar hole that left plate, right panel coupling is provided with, and fixedlys connected by bearing pin 9 between the tail end of inner screw 7 and the right panel, and the tail end of external screw rod 8 is provided with cannelure 10, and corresponding cannelure is provided with trip bolt 11 on the bar hole hole wall of left plate.During use, the outer end of left and right plate is fixed on the symmetric rumpbone end face, regulates degree of strutting, when treating that rumpbone strutted suitable aperture, pin external screw rods 8 by trip bolt 11 and just can by screwing inner screw 7 by nail hole 2.

Consult Fig. 9.Among the embodiment 5, strip plate 1 also is separated into left and right plate, spin by left external screw rod 8-1 and right external screw rod 8-2 and middle swivel nut 17 screw threads respectively between a left side plate, the right panel, the tail end of a left side external screw rod 8-1 and right external screw rod 8-2 connects with the vertical bent plate 18 of left plate, right panel, and front end spins with the left and right end of middle swivel nut 17 respectively.The rotation direction of the left and right end screw of middle swivel nut is opposite, undercut 21 in it is a technology groove when holding screw about processing, left side external screw rod and right external screw rod also are the opposite positive left-hand thread screw rod of rotation direction, like this, when screwing external thread sleeve, outside simultaneously emersion of left side external screw rod and right external screw rod or inside retraction are regulated the locknut 22 that can pass through after putting in place on left external screw rod and the right external screw rod and are pinned adjusting positions.

Consult Fig. 9,10.Right panel is respectively equipped with awl point 19 on the inner plate surface of the vertical bent plate 18 on the left plate, can thrust on the rumpbone medial surface by this vertex of a cone and strengthen right panel, and left plate is fixed steadiness on the left and right side rumpbone.

Consult Figure 11,12.Among the embodiment 6, symmetry is outward-dipping on left plate, the right panel, is splayed, the gradient coupling of splay opening angle and rumpbone, and vertical bent plate 18 belows of left plate, right panel also have additional returning plate 20 simultaneously, and nail hole 2 is arranged on the returning plate plate face.Two returning plates 20 are the left and right side rumpbone of corresponding below respectively, implants nail by hammering in nail hole 2 sacrads on the plate face, so that implement fixing when strutting fixing left and right rumpbone.

Consult Figure 13,14.Among the embodiment 7, adopt the telescopic chute structure between the left and right plate.Left side plate is separated the termination and is had rectangular aperture groove 12, and the rectangle that right panel separation termination has coupling slides gusset 13, has Long Circle via hole 14 on the bottom land of rectangular aperture groove 12, and rectangle slides and is placed with nail hole 15 on the gusset 13.During use, be fixed on the symmetric rumpbone end face by the outer end of nail hole 2 left and right plate, make rectangle slide gusset 13 and be arranged in rectangular aperture groove 12, apply downforce and treat that rumpbone struts when suiting aperture, screws in screw 16 by Long Circle via hole 14 and just can in the nail hole 15 of suitable location.

Claims

1. Rumpbone dilator, it is characterized in that, be strip plate (1), described strip plate (1) has and can strut symmetrical rumpbone and make rumpbone return to suitable aperture position and remain in this locational retractility displacement performance, for about the flexible frid of movable docking structure peg graft, be separated into a left side, right panel, a left side, one has rectangular aperture groove (12) in the separation termination of right panel, another has the rectangle that is complementary with described rectangular aperture groove (12) and slides gusset (13), have Long Circle via hole (14) on the bottom land wall of rectangular aperture groove (12), rectangle slides to be placed with on the gusset (13) and rectangle is slided gusset (13) places rectangular aperture groove (12) and apply downforce the nail hole (15) that screws in screw (16) when treating that rumpbone struts suitable aperture by Long Circle via hole (14), and described strip plate (1) plate face two ends are placed with respectively to hammer into implants nail with a described left side, the outer end of right panel is fixed on the nail hole (2) on the symmetrical rumpbone end face.

2. Rumpbone dilator according to claim 1 is characterized in that: the every end in nail hole (2) at described strip plate (1) plate face two ends is arranged four.