CN202128546U

CN202128546U - Individualization cranial facial bone block auxiliary positioning guide plate system

Info

Publication number: CN202128546U
Application number: CN201120230852U
Authority: CN
Inventors: 白石柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-01
Filing date: 2011-07-01
Publication date: 2012-02-01
Anticipated expiration: 2021-07-01

Abstract

The utility model discloses an individualization cranial facial bone block auxiliary positioning guide plate system, which relates to auxiliary medical equipment. The individualization cranial facial bone block auxiliary positioning guide plate system is characterized in that: the system comprises an osteotomy front connecting rod, an osteotomy rear connecting rod, and two same sets of reference guide plates and fixed guide plates; and the osteotomy front connecting rod is fixedly connected with one set of reference guide plates and fixed guide plates to form an osteotomy front guide plate device, and the osteotomy rear connecting rod is fixedly connected with the other set of reference guide plates and fixed guide plates to form an osteotomy rear guide plate device. With the adoption ofthe technical scheme provided by the utility model, the accurate positioning and resetting of the facial bone block can be realized with no need of a surgery navigation system and other complex devices, the surgery difficulty is reduced, the surgery time is shortened, and the surgery effect is ensured.

Description

A kind of individuation craniofacial region bone piece assist location guide plate system

Technical field

This utility model relates to the medical assistance apparatus, is specifically related to a kind of individuation craniofacial region bone piece assist location guide plate system.

Background technology

For because of old wound or the asymmetric or odd-shaped patient of craniofacial region bone structure bilateral that congenital development caused; Often need carry out surgical operation; To improve the asymmetric or lopsided of craniofacial region bone structure, promptly need carry out operation techniques such as old fracture resets, plastic surgery clinically.In these operations, need to intend the bone piece intercepting of correcting the position free after, facial appearance and function lopsidedly can be recovered satisfactorily thereby correct in bone piece location or reset, accurately recover or rebuild its craniofacial region bone structure to make its bilateral symmetry accurately; This just need confirm that the relative optimum position of free bone piece positions and fixes, so operating time be longer through comparing repeatedly, and surgical effect depends on surgical clinical experience fully.

Along with medical image technology, computer technology, development of advanced manufacturing, utilize CT scan to rebuild patient's craniofacial bone threedimensional model, in kind through rapid shaping machining model; The doctor just can obtain patient's skull model entity before operation; And carry out the model surgery operation technique, and so just can shorten operating time, improve surgical effect; But design still can't be transformed in the operation exactly before the art in the model surgery, and surgical effect still can not be guaranteed accurately.

Development along with the Computer Aided Surgery technology; Surgical navigation systems has begun to use clinically (like the Chinese patent CN200910237998.6 of orthopedic robot navigation device by name and navigation system) at present; But the surgical navigation systems equipment price is expensive; Complicated operation is unfavorable for popularizing on a large scale.If can propose fairly simple solution, and no longer need just can effectively promote popularizing of Computer Aided Surgery technology, have important social benefit and vast market benefit by complex device such as operation guiding systems.

Summary of the invention

Deficiency and shortcoming to prior art; The purpose of this utility model is to provide a kind of individuation craniofacial region bone piece assist location guide plate system, the accurate location that can realize craniofacial region bone piece with reset, reduce operating difficulty; Shorten operating time, guarantee surgical effect.

In order to achieve the above object, this utility model adopts following technical scheme to be achieved.

A kind of individuation craniofacial region bone piece assist location guide plate system is characterized in that, comprise cut a bone front rod, cut the bone rear connecting rod, identical benchmark guide plate and the resting guide of two covers; Be fixedly connected a cover benchmark guide plate and a resting guide by cutting the bone front rod, constitute and cut bone front guide device; Be fixedly connected another set of benchmark guide plate and resting guide by cutting the bone rear connecting rod, constitute and cut bone back guide device.

In the technique scheme, said benchmark guide plate and resting guide are respectively arranged with locating hole.

The method for preparing of above-mentioned individuation craniofacial region bone piece assist location guide plate system may further comprise the steps:

Step 1 is carried out CT scan to craniofacial region before the art, gathers its digital picture, utilizes three-dimensional reconstruction software to obtain the threedimensional model of the preceding craniofacial region osseous tissue of art;

Step 2; Before art, confirm benchmark bone and target localization bone on the craniofacial region osseous tissue threedimensional model; Utilize the 3-D view design software on benchmark bone and target localization bone, to choose locating surface and locating hole respectively; Surface of bone data to locating surface are taken out the shell computing, generate respectively to contain the benchmark guide plate of locating hole and the physical model of resting guide, and according to the threedimensional model of craniofacial region osseous tissue before the art; Design connects the physical model that cuts the bone front rod of benchmark guide plate and resting guide, and the physical model of benchmark guide plate, resting guide and section bone front rod constitutes the physical model that cuts bone front guide device;

Step 3; Craniofacial region osseous tissue threedimensional model carries out sham operated before utilizing the operation Autocad to Rhizoma Atractylodis Macrocephalae; Obtain postoperative craniofacial region osseous tissue threedimensional model; According to the threedimensional model of postoperative craniofacial region osseous tissue, design connects the physical model that cuts the bone rear connecting rod of benchmark guide plate and resting guide, and the physical model of benchmark guide plate, resting guide and section bone rear connecting rod constitutes the physical model that cuts bone back guide device;

Step 4, according to the physical model of osteotomy front guide device and the physical model of osteotomy back guide device, processing osteotomy front guide device and osteotomy back guide device.

The individuation craniofacial region bone piece assist location guide plate system of the utility model; Form jointly by osteotomy front guide device and osteotomy back guide device; The physical model of guide plate arrangement utilizes computer software design to accomplish, and can be processed into material object by Computer-aided manufacturing; Benchmark guide plate, resting guide and surface of bone are fitted closely; Corresponding positioning hole is arranged on the guide plate; With osteotomy front guide device is that template can be made the locating hole on benchmark bone and the target localization bone, and osteotomy back guide device and benchmark bone can accurately be located and fixed target location bone.Utilize the technical scheme of this utility model, need just can not realize the accurate location of craniofacial region bone piece and reset reduction operating difficulty, shortening operating time, assurance surgical effect by complex device such as operation guiding systems.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment this utility model is explained further details.

Fig. 1 is the structural representation that cuts bone front guide device of lopsided upper jaw bone;

Fig. 2 is the structural representation that cuts bone back guide device of lopsided upper jaw bone;

Among the figure, 1 is the benchmark bone; 2 is the target localization bone; 3 is the benchmark guide plate; 4 is resting guide; 51 for cutting the bone front rod; 52 sections bone rear connecting rods; 6 is locating hole.

The specific embodiment

With reference to Fig. 1; Section bone front guide device for lopsided upper jaw bone; Wherein, Benchmark guide plate 3 is fixed on the benchmark bone 1 through the locating hole 6 of correspondence, and two resting guides 4 are fixed on the target localization bone 2 through the locating hole 6 of correspondence respectively, cuts bone front rod 51 and is fixedly connected a cover resting guide 4 and benchmark guide plate 3.Cut bone front rod 51 and be fixedly connected a cover benchmark guide plate 3 and resting guide 4, constitute and cut bone front guide device.Convenient for illustrated later, utilize among the figure two cut the bone lines with target localization bone branch for three parts, middlely cut the not signal of a part fallen, but its section bone front position is cut between the bone line at two.

With reference to Fig. 2, what be above-mentioned lopsided upper jaw bone cuts bone back guide device, wherein, benchmark guide plate 3 and resting guide 4 with cut identical in the bone front guide device, and position of positioning hole is also strict corresponding.Bone rear connecting rod 52 is fixedly connected another set of benchmark guide plate 3 and resting guide 4 constitutes by cutting to cut bone back guide device, and benchmark bone 1 was accurately located with target localization bone 2 after realization cut bone.

Be the concrete method for preparing of above-mentioned individuation craniofacial region bone piece assist location guide plate system below, specifically may further comprise the steps:

Step 1 is carried out CT scan to craniofacial region before the art, gathers its digital picture, utilizes three-dimensional reconstruction software to obtain the threedimensional model of the preceding craniofacial region osseous tissue of art.Specifically be; Utilize the preceding craniofacial region image of CT machine scanning, and store its digital picture, utilizing the interactively medical image control system of Materialise company (is Mimics software; Be three-dimensional reconstruction software) threedimensional model of craniofacial region osseous tissue before the Reconstruction, and save as the .stl file.

Step 2; Before art, confirm benchmark bone and target localization bone on the craniofacial region osseous tissue threedimensional model; Utilize 3-D view design software (the 3-D view design software is the reverse software of Geomagic Studio) to read above-mentioned .stl file; On benchmark bone and target localization bone, choose locating surface and locating hole respectively, the surface of bone data of locating surface are taken out the shell computing, generate respectively and contain the benchmark guide plate of locating hole and the physical model of resting guide.Locating hole can be three, but when locating surface curvature changes very greatly, also can be one.At last, according to the threedimensional model of craniofacial region osseous tissue before the art, design connects the physical model that cuts the bone front rod of benchmark guide plate and resting guide, and the physical model of benchmark guide plate, resting guide and section bone front rod constitutes the physical model that cuts bone front guide device.Utilize Geomagic Studio software design to connect the physical model that cuts the bone front rod of benchmark guide plate and resting guide, as long as satisfy location and fixed function.

In the present embodiment, the benchmark guide plate is one, and resting guide is two.The benchmark guide plate is generally one, but can be for a plurality of at the target localization bone, and corresponding resting guide also is a plurality of.Utilize Geomagic Studio software design to connect the physical model that cuts the bone front rod of benchmark guide plate and resting guide, its standard is as long as satisfy and locate and fixed function, above-mentionedly is designed to general conventional design.

Step 3; Utilize operation Autocad (the operation Autocad adopts computer assisted craniomaxillofacial surgery operation designing professional software SurgiCase CMF) that craniofacial region osseous tissue threedimensional model before the Rhizoma Atractylodis Macrocephalae is carried out sham operated; Obtain postoperative craniofacial region osseous tissue threedimensional model; Threedimensional model according to postoperative craniofacial region osseous tissue; Design connects the physical model that cuts the bone rear connecting rod of benchmark guide plate and resting guide, and the physical model of benchmark guide plate, resting guide and section bone rear connecting rod constitutes the physical model that cuts bone back guide device.

In the processing that cuts bone front guide device and section bone back guide device, simple in structure can directly adopt the machining mode; The baroque quick molding method that can adopt is earlier made resin mould, then adopts casting method to obtain.Cutting bone front guide device can be medical materials such as cochrome, titanium alloy with the material that cuts bone back guide device.

Although more than combine accompanying drawing that the embodiment of this utility model is described, this utility model is not limited to above-mentioned specific embodiments and applications field, and above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that this utility model claim protected, can also make a variety of forms under the enlightenment of this description, these all belong to the row of this utility model protection.

Claims

1. an individuation craniofacial region bone piece assist location guide plate system is characterized in that, comprises cutting bone front rod, section bone rear connecting rod, identical benchmark guide plate and the resting guide of two covers; Be fixedly connected a cover benchmark guide plate and a resting guide by cutting the bone front rod, constitute and cut bone front guide device; Be fixedly connected another set of benchmark guide plate and resting guide by cutting the bone rear connecting rod, constitute and cut bone back guide device.

2. individuation craniofacial region bone piece assist location guide plate according to claim 1 system is characterized in that said benchmark guide plate and resting guide are respectively arranged with locating hole.