CN101828952B - Interventional device for repositioning and fixing lumbar vertebrae - Google Patents

Abstract

The invention discloses an interventional device for external fixed minimal invasive repositioning and fixing lumbar vertebrae. The interventional device consists of reposition fixation hooks, a fixation plate and a retaining nut, wherein the interventional device for repositioning and fixing the lumbar vertebrae is provided with at least two reposition fixation hooks; each of the reposition fixation hooks comprises a hook body, a pulling ring and a pulling ring rod; the hook body is provided with an upper screw thread part and a retractor part; the upper screw thread part is connected with the pulling ring rod; symmetrical grooves which are used for embedding the upper screw thread part are formed on the fixation plate; and the retaining nut is screwed on the outside of the upper screw thread part. Due to the simple structure of the interventional device, lumbar vertebrae spondylolisthesis can be cured only by performing a local anaesthesia minimally invasive surgery on a patient, and the patient can recover under the condition that the lumbar vertebrae does not need to be cut through surgery and fixed by using a steel plate, so physical pain is avoided, and surgery cost is saved. Due to the adoption of the interventional device, the recovery time is shortened, so the interventional device can be removed after two weeks when the repositioned lumbar vertebrae adapts to a ligament, and has good application prospect and market prospect.

Description

External fixedly Wicresoft interventional device for repositioning and fixing lumbar vertebrae

Technical field

The present invention relates to a kind of interventional device for repositioning and fixing lumbar vertebrae, but especially relate to a kind of Wicresoft fixedly interventional device for repositioning and fixing of lumbar spondylolisthesis that resets.

Background technology

Lumbar spondylolisthesis is the vertebral body pathological change of (ventrad) slippage forward, and traditional non-operative treatment difficulty that resets also can't be fixed.Contemporary medical science circle generally uses operation to operate on; Upper steel plate is fixed, and connecting plate is provided with pedicle screw, through operation pedicle screw is implanted in patient's lumbar vertebra; Screw through pedicle screw connecting plate nut outside fixing, thereby reach the effect of correcting the slippage lumbar vertebra.After patient's lumbar vertebra resetted, screw and connecting plate were taken out in operation once more.This surgery cost is expensive, probably needs 6～80,000 yuan, and operation is painful big, and complication is many.

Even those skilled in the art constantly improve pedicle screw and fixing head, still still can't avoid the wound and the misery of performing the operation.The external fixing head also has sale, but therapeutic effect is unsatisfactory.

Urgent need is a kind of at present both can alleviate patient treatment misery and medical expense, can reach the lumbar vertebra positor of good therapeutic effect again.

Summary of the invention

The objective of the invention is to propose the external fixedly Wicresoft interventional device for repositioning and fixing lumbar vertebrae that a kind of therapeutic effect is good and only need Minimally Invasive Surgery to accomplish when using.

To achieve these goals; Invention thinking of the present invention is: cause misery very big on the health for fear of complicated the reaching of lumbar surgery to the patient; The inventor is through long-time research and experimental verification; Proposition resets for row Wicresoft gets involved to lumbar spondylolisthesis, external fixing to reach the purpose of treatment.Wicresoft gets involved promptly to be needed to carry out the utensil of Wicresoft; The inventor selects the fixation hook of special construction; Fixation hook can be implanted in patient's body through the Wicresoft mouth, plays the effect of normotopia through fixation hook tractive slippage vertebral body, fixes through the fixing head fixation hook that will reset external then.Thereby reach the firm effect of treatment.

The present invention adopts following concrete technical scheme:

A kind of external fixedly Wicresoft interventional device for repositioning and fixing lumbar vertebrae, it is by the fixation hook that resets, fixing head and hold-down nut are formed; Said interventional device for repositioning and fixing lumbar vertebrae comprises two fixation hooks that reset at least, and the said fixation hook that resets comprises coupler body, La Quan and draws the circle bar; Said coupler body is provided with threaded portion and drag hook portion, and last threaded portion is connected with drawing the circle bar; Said fixing head is provided with symmetrical grooves and is used to set the said threaded portion of going up; Said hold-down nut is screwed outside last threaded portion.

The said circle bar that draws is provided with kink, and is broken.

The said screw thread minister 1.5～3cm that goes up, the best is 2cm.

Said drag hook portion is a matrix, and tail end is tip-like, and length is 1.5～3cm, and the best is 2cm; The width of said drag hook portion is 2～5cm, and this value can be decided according to patient's psoas muscle thickness.

The length of said fixing head is 18～22cm; Wide is 8～15cm; Thickness is 0.3～0.5cm.The length of said fixing head groove is 3～8cm, and width is 0.3～0.8cm.

Said hold-down nut internal diameter is 0.3～0.8cm, and the best is 0.5cm, and external diameter is 1～1.5cm, and the best is 1.15cm.

Advantage of the present invention and benefit:

The present invention is simple in structure, and the patient only need adopt under the local anaesthesia fixation hook drag hook portion that resets of Wicresoft to get involved human body, under the X line, is positioned at slippage lumbar vertebra spinous process, draws circle that the slippage vertebral body is resetted through lifting.After the X line was made a definite diagnosis and resetted, the circle bar that draws of the fixation hook that will reset fractureed, because the said circle bar that draws is provided with kink, therefore fractureed easily, can not make the vertebral body dislocation that resets.Fixing head is placed threaded portion on the fixation hook that resets, and screw through hold-down nut.Fixing head places external.Patient through interventional device for repositioning and fixing lumbar vertebrae according to the invention treatment need not the surgical incision steel plate fixedly lumbar vertebra can realize fully recovering; Avoided the misery on the health; Saved surgery cost; The invention enables cure time to shorten, vertebral body after roughly resetting about two weeks and ligament can be removed after adapting to, and have good application prospects and market prospect.

Description of drawings

Describe embodiment of the present invention in detail below in conjunction with accompanying drawing:

Fig. 1 is the present invention overall structure figure when using;

Fig. 2 is the present invention's fixation hook structural representation that resets;

Fig. 3 is a user mode reference diagram of the present invention;

Fig. 4 is a nut structure sketch map of the present invention;

Fig. 5 is a fixing head structural representation of the present invention.

The specific embodiment

Shown in Fig. 1 to 5, a kind of external fixedly Wicresoft interventional device for repositioning and fixing lumbar vertebrae, it is by thefixation hook 1 that resets, fixinghead 2 and hold-downnut 3 are formed; Interventional device for repositioning and fixing lumbar vertebrae comprises twofixation hooks 1 that reset, and the saidfixation hook 1 that resets comprisescoupler body 11, drawscircle 12 and drawscircle bar 13;Coupler body 11 is provided with threadedportion 111 anddrag hook portion 112, and last threadedportion 111 is connected withdrawing circle bar 13; Fixinghead 2 is provided withsymmetrical grooves 21 and is used to set threadedportion 111, and hold-downnut 3 is screwed outside last threadedportion 111.

Draw circle bar 13 to be provided withkink 131, broken.

Last screw thread minister 2cm.

Drag hook portion 112 is a matrix, and tail end is tip-like, conveniently is fixed on the vertebral body spinous process 4, and length L is 2cm; Width W is 2～5cm, and this value can be decided according to patient's psoas muscle thickness.

The length of fixing head is 20cm; Wide is 10cm; Thickness is 0.5cm.The length of fixing head groove is L₁Be 5cm, width W₁Be 0.5cm.

The hold-down nut internal diameter is 0.5cm, and external diameter is 1.15cm.

The present invention patient in use only need adopt under the localanaesthesia fixation hook 1drag hook portion 112 that resets of Wicresoft to get involved human bodies, under the X line, is positioned at slippage lumbar vertebra spinous process 4, drawscircle 12 that slippage vertebral body 5 is resetted through lifting.After the X line was made a definite diagnosis and resetted, thecircle bar 13 that draws of thefixation hook 1 that will reset fractureed atkink 131 places, because the saidcircle bar 13 that draws is provided withkink 131, therefore fractureed easily, can not make the vertebral body dislocation that resets.Fixinghead 2 is placed the last threadedportion 111 of thefixation hook 1 that resets, and screw through hold-down nut 3.Fixinghead 2 places external, but 2 times cushioning Cotton Gossypiis of fixing head or gauze avoid oppressing skin.Roughly about two weeks, vertebral body after resetting and ligament can be removed interventional device for repositioning and fixing lumbar vertebrae after adapting to.

Claims (1)

1. an external fixedly Wicresoft interventional device for repositioning and fixing lumbar vertebrae is characterized in that it is made up of the fixation hook that resets, fixing head and hold-down nut; Said interventional device for repositioning and fixing lumbar vertebrae comprises two fixation hooks that reset at least, and the said fixation hook that resets comprises coupler body, La Quan and draws the circle bar; Said coupler body is provided with threaded portion and drag hook portion, and last threaded portion is connected with drawing the circle bar; Said fixing head is provided with symmetrical grooves and is used to set the said threaded portion of going up; Said hold-down nut is screwed outside last threaded portion;

The fixation hook that resets can be implanted in patient's body through the Wicresoft mouth, plays the effect of normotopia through the fixation hook tractive slippage vertebral body that resets, and fixes through the fixing head fixation hook that will reset external then;

The said circle bar that draws is provided with kink, and is broken;

The said screw thread minister 2cm that goes up;

Said drag hook portion is a matrix, and tail end is tip-like, and length is 2cm;

The width of said drag hook portion is 2～5cm;

Said groove has opening on the long limit of fixing head, and the long limit of said groove is vertical with the long limit of fixing head;

The length of said fixing head is 20cm; Wide is 10cm; Thickness is 0.5cm;

The length of said groove is 5cm, and width is 0.5cm;

Said hold-down nut internal diameter is 0.5cm, and external diameter is 1.15cm.

Images