CN219042754U - Osteotomy-synchronization implant implantation positioning piece for jaw reconstruction - Google Patents

Abstract

An osteotomy-synchronization implant implantation positioning piece for jaw reconstruction comprises a positioning piece body, wherein the inner surface of the positioning piece body is attached to bones (fibula, ilium, scapula and the like) to be cut, a plurality of osteotomy guide grooves are formed in the positioning piece body, and one or a plurality of implant holes are formed between adjacent osteotomy guide grooves in the positioning piece body. By arranging the implant holes on the positioning piece body, the work of punching the implant can be completed before the osteotomy guide plate is positioned on the corresponding bone and the osteotomy guide plate is fixed on the titanium plate after the fixation is completed; the situation that the implant is perforated on the cut bone segment after the cut bone segment and the jawbone are spliced and fixed is avoided, and the situation that the implant implantation position is poor or even the implantation operation fails due to poor space and fit of the separate implantation positioning guide plate after the cut bone segment is fixed on the titanium plate in place is avoided; and simultaneously avoids the physiological pain and the economic burden of multiple operations on the patient.

Description

Osteotomy-synchronization implant implantation positioning piece for jaw reconstruction

Technical Field

The utility model relates to the field of jaw reconstruction, in particular to an osteotomy-synchronization implant implantation positioning piece for jaw reconstruction.

Background

In recent years, jaw defects and deformity cases caused by growth and development problems, traffic accidents, facial tumors and other factors are in an increasing trend, aiming at the situation, most of the current stomatologists in hospitals in China observe a diseased region through CT shot by patients, reconstruct a three-dimensional model through professional medical software and make a corresponding operation scheme, and then cut normal bones (fibula, ilium, scapula and the like) in a human body to reconstruct the jaw, but the cut bones need to be planted after the splicing of the jaw and the cut bones, and holes need to be drilled in the cut bones when the implant is planted, if the positioning guide plate is usually not in place after the splicing of the jaw and the cut bones is finished and after the titanium plate is in place, the implant implantation position is poor or even the implantation operation fails, so that the implant is often required to be planted again through secondary operation, secondary operation brings secondary physiological and psychological pain to the patients, and economic burden is also caused.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides an osteotomy-synchronization implant implantation positioning piece for jaw reconstruction.

The aim of the utility model is realized by the following technical scheme:

the utility model provides an osteotomy-synchronization implant implantation setting element for jaw rebuilding, includes the setting element body, the internal surface of setting element body is laminated with the skeleton that needs to intercept, be equipped with a plurality of osteotomy guide ways on the setting element body, be equipped with one or more implant holes between the adjacent osteotomy guide ways on the setting element body.

Further, the osteotomy guiding groove is arranged on an osteotomy guiding body fixedly arranged on the positioning piece body.

Further, the positioning piece body is provided with a fixing mechanism, and the fixing mechanism is used for fixing the positioning piece body to bones to be cut.

Further, one or more bone fixing holes are arranged between adjacent bone cutting guide grooves on the locating piece body, and the bone locating holes correspond to the positions of the titanium plate holes one by one.

Further, the implant holes are implant positioning holes.

Further, the locating piece body is formed by 3D printing.

Further, the positioning piece body is made of medical resin.

The beneficial effects of the utility model are as follows:

by arranging the implant holes on the positioning piece body, the work of punching the implant can be completed before the osteotomy guide plate is positioned on the corresponding bone and the osteotomy guide plate is fixed on the titanium plate after the fixation is completed; the method can avoid punching the implant on the cut bone segment after the cut bone segment and the jawbone are spliced and fixed, and avoid poor implant implantation position or even implant operation failure caused by poor space and fit of the independent implantation positioning guide plate after the cut bone segment is fixed on the titanium plate in place; and simultaneously avoids the physiological pain and the economic burden of multiple operations on the patient.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic view of a structure of a split joint of a jawbone simulation model and a fibula segmentation model;

fig. 4 is a schematic diagram of a spliced fixing structure of a fibula segment and a jawbone.

In the figure, the body of the 11-positioning piece, the guide body of the 12-osteotomy, the guide groove of the 13-osteotomy, the hole of the 14-implant, the fixing hole of the 15-bone, the bone to be intercepted 3-, the 4-jawbone, the 5-fibula segment, the 6-titanium plate, the 7-titanium plate hole and the 8-implant simulator.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

Embodiment one:

as shown in fig. 1 to 4, an osteotomy-synchronization implant implantation positioning member for jaw reconstruction comprises a positioning member body 11, wherein the inner surface of the positioning member body 11 is attached to a bone 3 to be cut, a plurality of osteotomy guide grooves 13 are formed in the positioning member body 11, and one or more implant holes 14 are formed between adjacent osteotomy guide grooves 13 in the positioning member body 11.

The osteotomy guiding groove 13 is arranged on the osteotomy guiding body 12 fixedly arranged on the positioning piece body 11.

The positioning member body 11 is provided with a fixing mechanism which fixes the positioning member body 11 to the bone 3 to be cut.

One or more bone fixing holes 15 are arranged between adjacent osteotomy guiding grooves 13 on the positioning piece body 11, and the bone positioning holes are in one-to-one correspondence with the positions of the titanium plate holes 7. The bone fixation holes 15 are used for fixing the bone 3 to be sectioned with the titanium plate 6 by titanium nails.

The implant holes are implant positioning holes.

The bone fixing hole is a titanium nail channel.

The positioning piece body 11 is formed by 3D printing.

The positioning member body 11 is made of medical resin.

The fixing mechanism includes titanium nails which are fixed to the bone 3 to be cut through several of the bone fixing holes 15, or which are fixed to the bone 3 to be cut through several fixing through holes provided in the spacer body 11. The fixing through holes are formed in the two ends of the fixing piece body, so that the bone fixing holes 15 can be prevented from being used for multiple times, and the cut bones and the titanium plate 6 can not be fixed after the bone fixing holes are damaged.

The bone 3 to be cut in the embodiment is a fibula of a human body (the embodiment is also applicable to autologous bone tissues such as ilium, scapula and the like), because the fibula has sufficient bone quantity and proper thickness when the bone is selected, and can provide a good foundation for later planting and repairing; and has double blood supply, and is easy to survive; the fibular artery and vein anatomical position has the advantages of thicker constant diameter, easy anastomosis and the like, and becomes the preferable skeleton for reconstructing the jawbone.

A manufacturing method of an osteotomy-synchronization implant implantation positioning piece for jaw reconstruction comprises the following steps:

s1: performing head CT and double lower limb CTA examination on a patient with jawbone lesions by using CT scanning equipment, and importing DICOM data of scanned imaging data into medical software to reconstruct a complete jawbone simulation model and a fibula simulation model;

s2: performing simulated cutting on the missing or damaged jaw bone part on the constructed jaw bone simulation model, determining an optimal cutting path, and cutting the jaw bone simulation model according to the determined cutting path;

s3: a fibula simulation model section with the length and the angle optimally adapted to the incision of the maxillofacial simulation model is found out from the fibula simulation model, and a fibula segmentation model closest to the shape of the defective or diseased jawbone is simulated and cut out from the fibula simulation model;

s4: replacing the resected diseased jawbone simulation model with a fibula segmentation model, determining the position of an implant simulation body 8 on the fibula segmentation model, implanting the implant simulation body 8, and fine-tuning the fibula segmentation model;

s5: printing the cut jawbone simulation model and the fibula segmentation model by 3D printing, and combining the printed fibula segmentation model with the printed jawbone simulation model according to the cutting edge direction to form a new jawbone model;

s6: fixing the combined jawbone simulation model and fibula segmentation model by utilizing a titanium plate 6, and processing a titanium plate hole 7 for fixing the titanium plate 6 on the fibula segmentation model;

s7: according to the shape of the fibula segmentation model, the position of the titanium plate hole 7 on the fibula segmentation model and the position of the implant simulator 8 on the fibula segmentation model, the 3D printing technology is utilized to print out the locating piece body 11 attached to the fibula segmentation model, wherein the direction of the incision on the fibula segmentation model is the direction of the osteotomy guiding groove 13 on the locating piece body 11, the position of the titanium plate hole 7 is the position of the bone fixing hole 15 on the locating piece body 11, the position of the implant simulator 8 corresponds to the implant hole 14 on the locating piece body 11, and if necessary, the fixing through hole can be printed out when the locating piece body 11 is printed.

A method for using an osteotomy-synchronization implant implantation positioning piece for jaw reconstruction, which comprises the following steps:

the double-group doctor performs operation simultaneously, the doctor of the head side person needs to expose the position of the jaw bone according to the preoperative planning, the jaw bone range is resected, then the titanium plate 6 is fixed on the resected healthy jaw bone 4 through the titanium nails, the leg side person doctor cuts the lower leg muscle of the patient, the fibula is exposed, the position which is 8cm away from the ankle joint is found as the starting point, the fibula position in the proximal end direction is selected, the vascularized fibula valve is prepared, the sterilized positioning piece body 11 is placed in the incision, the inner surface of the positioning piece body 11 is attached to the fibula, after the attachment, the nail is prepared according to the fixing through holes (according to partial bone fixing holes 15 when the fixing through holes are not adopted), the positioning piece body 11 is fixed on the fibula section 5 through the titanium nails, the nail is prepared according to the bone fixing holes 15, the fibula is perforated according to the fibula hole 14, the fibula is cut according to the direction of the fibula guide groove 13, the fibula is cut, the titanium nails are taken out after the fibula is cut, the fibula is prepared, the position is reconstructed, the positioning piece body 11 is fixed on the fibula section 5 according to the fixing through holes 15 when the fixing through holes are not adopted, and the fixing holes are prepared, the fibula is fixed on the jaw section 5 according to the fixing holes 6.

By arranging the implant hole 14 on the positioning piece body 11, when the tightly fixed osteotomy fixing piece is not removed after osteotomy is carried out on the skeleton (after the osteotomy guide plate is positioned on the corresponding skeleton and is fixed through the skeleton fixing hole (namely the titanium nail channel), the work of punching the implant is completed before the osteotomy is fixed on the titanium plate), and the work of punching the implant is completed; the situation that the implant is perforated on the cut bone segment after the cut bone segment (the fibula segment 5 in the embodiment) and the jawbone 4 are spliced and fixed is avoided, and the situation that the implant implantation position is poor or even the implantation operation fails due to poor space and fit of the separate implantation positioning guide plate after the cut bone segment is fixed on the titanium plate in place is avoided; and meanwhile, the secondary operation is avoided for completing the implant implantation in order to ensure that the splicing between the cut bone segments and the jawbone is not influenced, and the physiological pain and the economic burden of multiple operations are avoided for patients.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (7)

1. An osteotomy-contemporaneous implant positioning component for jaw reconstruction, characterized in that: the bone cutting fixture comprises a locating piece body, wherein the inner surface of the locating piece body is attached to a bone to be cut, a plurality of bone cutting guide grooves are formed in the locating piece body, and one or more implant holes are formed between adjacent bone cutting guide grooves in the locating piece body.

2. An osteotomy-contemporaneous implant locator for use in jaw reconstruction as in claim 1, wherein: the osteotomy guiding groove is arranged on an osteotomy guiding body fixedly arranged on the positioning piece body.

3. An osteotomy-contemporaneous implant locator for use in jaw reconstruction as in claim 1, wherein: the locating piece body is provided with a fixing mechanism, and the fixing mechanism is used for fixing the locating piece body to bones to be intercepted.

4. An osteotomy-contemporaneous implant locator for use in jaw reconstruction as in claim 1, wherein: one or more bone fixing holes are arranged between adjacent bone cutting guide grooves on the locating piece body, and the bone locating holes correspond to the positions of the titanium plate holes one by one.

5. An osteotomy-contemporaneous implant locator for use in jaw reconstruction as in claim 1, wherein: the implant holes are implant positioning holes.

6. An osteotomy-contemporaneous implant locator for use in jaw reconstruction as in claim 1, wherein: the locating piece body adopts 3D to print the shaping.

7. An osteotomy-contemporaneous implant fixture for jaw reconstruction as in any one of claims 1-5, wherein: the locating piece body is made of medical resin.

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