CN2281767Y - Veterbral auxiliary fixing device with holding function - Google Patents

Abstract

The utility model relates to a vertebral auxiliary fixing device with holding function. The utility model comprises a mat-shaped object and a plurality of combining elements; the mat-shaped object used for covering the external side of the foreign body implanted into a vertebral scleromere to fix so as to prevent the foreign body from falling; the shape of the mat-shaped object is better to be a rectangle with arched angles; the combining elements are used for fixing the mat-shaped object on the vertebral scleromere. The mat-shaped object and the combining elements are made of the material which can be absorbed by the human body. Months pass after the operation, the utility model can be absorbed by the human body so that the foreign body in the human body is reduced and the operation effect is enhanced.

Description

Has the vertebra auxiliary fixing device that grips function

This utility model relates to a kind of vertebra auxiliary fixing device, particularly a kind of vertebra auxiliary fixing device with gripping function.

In the tradition spinal fixation reattachment surgery, often to treat to implant foreign body between fixed vertebral segments or joint, such as bone piece (bone graft) or various implant, hydroxyapatite (hydroxylapitite) etc. for example.If can't prevent these foreign bodies from treating to protrude between fixed vertebral segments or joint, will injure and treat near fixedly structure or the tissue of vertebral segments, for example touch nerve and cause severe pain.Still adopt hone lamella to be covered on these foreign bodies at present, and fixed, prevent that foreign body from protruding.But adopt hone lamella to prevent that foreign body from protruding, cause operation inconvenience, and hone lamella can't with treat the fixedly complete driving fit of vertebral segments, so have the phenomenon that screw gets loose, even cause foreign body to drop.

The purpose of this utility model is: provide a kind of implantation is treated that the foreign body between fixing vertebral segments or joint has the vertebra auxiliary fixing device that grips function that has of grip effect (holding effect).

Another purpose of the present utility model is: a kind of vertebra auxiliary fixing device with gripping function that is made of seat shape thing and binding member is provided.

The vertebra auxiliary fixing device that grips function that has that this utility model provides comprises:

One seat shape thing is treated the fixedly foreign body outside of vertebral segments in order to be covered in to implant, and comes off to prevent it;

A plurality of binding members are in order to this seat shape thing fixedly on the what vertebral segments.

Above-mentioned seat shape thing is by having flexible and human compatibility (biocompatibel) but the little material of ductility, Dyclone (Dacron) for example, and surgical suture etc. are made, and its form of the composition can be arbitrary form, for example fabric, adhesive-bonded fabric etc.It constitutes shape and size does not also have specific limited, is principle implantation is treated foreign body between fixing vertebral segments or joint has grip effect, and generally speaking, its shape is preferable with the rectangle of bight circular arcization.

Above-mentioned binding member can be can be fixed in seat shape thing the element for the treatment of on the fixing vertebral segments arbitrarily, for example little nail, band rope nail, single barb nail, many barbs nail, band rope barb etc.But shimming between certain this binding member and the seat shape thing, even use barbed pad, with the reinforcement binding member seat shape thing is fixed in and treats the fixedly fixed effect of vertebral segments.These nails (little nail, contain hamate bone nail), barb or pad, its material is any orthopaedics material of being approved by orthopaedics and being suitable for, such as the metal material of human implantable, for example iron rustless steel 316 LVM, titanium base material Ti-6-4 reach cobalt-nickel alloy etc.; And Suo Ze can be sub-thread or multiply rope, and its constituent material is any approved medical rope material, for example Dyclone.No matter seat shape thing or binding member, its material all uses the absorbable material of human body, for example artificial ligament material.Behind several moons of operation, the foreign body between fixing vertebral segments or joint is treated in implantation, and treat that fixedly vertebral segments is combined into one, therefore do not need to use any auxiliary fixing device to prevent that foreign body is from treating that fixedly vertebral segments is protruded, at this moment, the vertebra auxiliary fixing device that this utility model provides with gripping function, its seat shape thing and binding member are absorbed by the body gradually, so that constituting seat shape thing and binding member with the vertebra auxiliary fixing device that grips function in fact all is absorbed fully, can make the interior foreign body of human body less, also decrease because of foreign body causes the probability to human body harm.Improved surgical effect simultaneously.

Describe this utility model in detail below in conjunction with embodiment shown in the drawings.

Fig. 1 is a preferred embodiment that the utlity model has the vertebra auxiliary fixing device that grips function, is installed on the sketch map on the vertebral segments of implanting intervertebral fusion device (interbody fusion system).

Fig. 2-1～2-9, for various can be used for binding member of the present utility model and seat shape thing in conjunction with profile.

Among Fig. 1,10 is seat shape thing, 20 screws for the formation binding member, 30 and 30 ' for treating fixedly vertebral segments, 40 is in order to fixedly to treat the fixedly intervertebral fusion device of vertebral segments, be that the fixedly foreign body between vertebral segments is treated in implantation recited above, and 21 be the nail spiral shell head on the binding member, and 22 is the regular hexagon tooling hole on the nail spiral shell head, in order to cooperate the regular hexagon wrench, this binding member locked treats fixedly vertebral segments, make this seat shape thing fixedly what treat fixedly on the vertebral segments.

Fig. 2-1 is that different binding members cooperate seat shape things to constitute the side view of this utility model preferred embodiment, the wherein same Fig. 1 of 10,20,21 definition to Fig. 2-9.Among Fig. 2-1,2-2 and the 2-3, adopt nail as binding member main body 20 ', Fig. 2-4,2-8 and 2-9 adopt screw with barb as binding member main body 20 ', 24 and 24 ' be the barb on these screws, Fig. 2-5 adopt band rope nail as binding member main body 20 ', Fig. 2-6 adopt with band rope barb as binding member main body 20 ', and Fig. 2-7 adopt the two nails of staple-shaped as binding member main body 20 '.Among Fig. 2-2,2-3, the 2-4, between screw spiral shell head 21 and seat shape thing 10, add Upper gasket 23 or barbed pad 23 ', in order to strengthen the fixed effect of binding member to seat shape thing.Binding member main body 20 among Fig. 2-5 and the 2-6 ', all have antilift wire 25 or 25 ', in order to strengthen the fixed effect of binding member to seat shape thing.

Claims (5)

1. one kind has the vertebra auxiliary fixing device that grips function, it is characterized in that: comprise that one implants the seat shape thing to prevent that it from coming off outside the foreign body for the treatment of fixing vertebral segments in order to be covered in; A plurality of in order to the fixing binding member on the what vertebral segments of this seat shape thing.

2. by the described vertebra auxiliary fixing device of claim 1, it is characterized in that described seat shape thing is the rectangular weave thing of bight circular arcization with gripping function.

3. by claim 1 or 2 described vertebra auxiliary fixing devices with gripping function, it is characterized in that: described seat shape thing is for to be made by the absorbable material of human body.

4. by claim 1 or 2 described vertebra auxiliary fixing devices with gripping function, it is characterized in that: described binding member is for to be made by the absorbable material of human body.

5. by the described vertebra auxiliary fixing device with gripping function of claim 3, it is characterized in that: binding member is for to be made by the absorbable material of human body.

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