CN209734134U - Navigation registration guide plate for individualized mandible - Google Patents
Navigation registration guide plate for individualized mandible Download PDFInfo
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- CN209734134U CN209734134U CN201822115821.6U CN201822115821U CN209734134U CN 209734134 U CN209734134 U CN 209734134U CN 201822115821 U CN201822115821 U CN 201822115821U CN 209734134 U CN209734134 U CN 209734134U
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Abstract
The utility model belongs to the technical field of medical treatment, especially, be a navigation registration baffle of individuation mandible, including baffle, mandible model and mandible tooth model, the occlusal groove has been seted up to the bottom surface of baffle, the both sides terminal surface of baffle is provided with the pterygoid lamina, the side of baffle and the surface of pterygoid lamina all are equipped with registration mark point, mandible tooth model is located the top surface of mandible model, install the reference frame on the mandible model; the utility model discloses, set up the interlock groove in the baffle bottom surface, the shape in interlock groove and every patient's lower jaw tooth shape phase-match, patient's interlock back baffle stabilizes on lower jaw tooth model, distributes at baffle and pterygoid lamina side discrete type simultaneously and registers the mark point, realizes accurate location, need not to plant the titanium nail as registering the reference point at patient's lower jaw alveolar bone, need not to have the operation of creating, does not need the secondary to carry out the CT inspection, both reduces the damage to the patient, makes things convenient for the doctor to operate again, and the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of the medical treatment, concretely relates to navigation registration baffle of individuation mandible.
Background
The field of craniomaxillofacial surgery comprises neurosurgery, oral and maxillofacial surgery, ophthalmology, otorhinolaryngology, head and neck surgery, plastic surgery and other subjects, and the common treatment of the department includes malignant tumor excision, compound trauma, deformity reduction treatment and the like. Due to the adjacent cranium, complex anatomical structure, and the close correlation of therapeutic needs to appearance, precise intraoperative procedures must be accomplished with minimal trauma. The traditional technical method cannot meet the treatment requirement and professional development in the aspects of preoperative prediction simulation, operation execution precision, operation stability and the like, and the generation of complications is increased greatly.
The optical navigation technology is an advanced technology in the digital surgical technology, has the functions of preoperative operation simulation and planning, intraoperative three-dimensional display real-time positioning and tracking, postoperative precision analysis and the like, and can improve the accuracy, the minimally invasive property and the safety of a surgical operation. At present, the optical navigation system is widely applied to the field of oral craniomaxillofacial surgery, and the indications of the optical navigation system comprise craniomaxillofacial fracture, temporomandibular joint rigidity, abnormal bone fiber proliferation, hypertrophic mandibular angle deformity, maxillofacial cartilage and bone tumor, maxillofacial foreign body retention and the like.
registration is an important process for implementing navigation techniques. The registration technology is a key core technology in optical navigation and is directly related to the precision of the whole system and the success or failure of computer-assisted surgery. The registration refers to a virtual coordinate system, i.e., a coordinate system formed in a computer image space after medical image processing of single-mode or multi-mode medical images such as CT, MRI and the like acquired before an operation and a world coordinate system, i.e., a coordinate system constructed by a positioning device of a navigation system in the operation and an actual spatial position of an anatomical structure of an operation area, so that the coordinate system and the world coordinate system establish an accurate corresponding relationship in the navigation system, and the coordinate system can accurately reflect the tracked motion of a probe, an operation instrument and a patient on a computer screen in real time.
Currently, common registration methods can be generalized to point registration and surface registration. Point registration, namely implanting an imagewise developable screw near an operation area of a patient before an operation, or pasting an imagewise developable marker on the surface of soft tissue, then performing CT scanning to obtain original data, and reconstructing a three-dimensional image of an operation area with a calibration point of the patient to perform system registration; carrying out system registration by using a special rigid structure of a patient, such as a special site of a tooth, a protruded bone point or a sunken bone point and the like; the trainee also has to embed screws or stuff dental material as positioning markers on the bite plate to perform the system registration. The plane registration, namely the laser scanning imaging technology, uses the self anatomical structure of the human body, mainly the skin surface around the forehead or the eye socket as a mark plane to carry out the system registration.
Because the shape of the mandible is complex, the distance between the dentition part and the condylar process is relatively far, in order to ensure navigation precision in the operation, 4-5 titanium nails are usually required to be implanted into the alveolar bone of the mandible of a patient before the operation as registration reference points, and secondary CT examination is required to be carried out to develop the titanium nails, so that the titanium nails can be identified by a navigation system. The titanium nail implantation is carried out under local anesthesia, but invasive operation on patients causes discomfort and even strong pain of some patients after the titanium nail implantation, pain relieving medicine needs to be taken, and secondary radiation injury can be caused to the patients through the CT examination again.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a navigation registration baffle of individuation mandible has the characteristics of not having the wound, can avoiding the secondary radiation damage.
in order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a navigation of individuation mandible registers baffle, includes baffle, mandible model and lower jaw tooth model, the occlusal groove has been seted up to the bottom surface of baffle, the both sides terminal surface of baffle is provided with the pterygoid lamina, the side of baffle and the surface of pterygoid lamina all are equipped with registration mark point, lower jaw tooth model is located the top surface of mandible model, install the reference frame on the mandible model.
Preferably, the registration mark points are distributed discretely on the side surfaces of the guide plate and the wing plate.
Preferably, the guide plate and the wing plate are of an integrated design.
Preferably, the bite groove and the mandibular tooth model are in close fit.
Preferably, the registration mark point is a cone with the diameter of 1mm and the depth of 1 mm.
Preferably, the reference frame is mounted on the chin or body of the mandible model.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses, set up the interlock groove in the baffle bottom surface, the shape in interlock groove and every patient's lower jaw tooth shape phase-match, patient's interlock back baffle stabilizes on lower jaw tooth model, distributes at baffle and pterygoid lamina side discrete type simultaneously and registers the mark point, realizes accurate location, need not to plant the titanium nail as registering the reference point at patient's lower jaw alveolar bone, need not to have the operation of creating, does not need the secondary to carry out the CT inspection, both reduces the damage to the patient, makes things convenient for the doctor to operate again, and the practicality is strong.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of the middle guide plate of the present invention;
FIG. 3 is a schematic structural view of the middle guide plate of the present invention viewed from the bottom;
In the figure: 1. a guide plate; 2. registering the mark points; 3. a mandibular tooth model; 4. a reference frame; 5. a mandible model; 6. an occlusion groove; 7. a wing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-3, the present invention provides the following technical solutions: a navigation registration guide plate for an individualized mandible comprises a guide plate 1, a mandible model 5 and a mandible tooth model 3, wherein an occlusal groove 6 is formed in the bottom surface of the guide plate 1, wing plates 7 are arranged on the end surfaces of two sides of the guide plate 1, registration mark points 2 are arranged on the side surfaces of the guide plate 1 and the surfaces of the wing plates 7, the mandible tooth model 3 is positioned on the top surface of the mandible model 5, a reference frame 4 is mounted on the mandible model 5, the shape of the occlusal groove 6 is matched with the shape of mandible teeth of each patient, the guide plate 1 is firmly fixed on the mandible tooth model 3 after occlusion of the patient, the registration mark points 2 are discretely distributed on the side surfaces of the guide plate 1 and the wing plates 7, accurate positioning is realized, titanium nails are not required to be implanted into the mandible tooth of the patient as registration reference points, invasive operation is not required, secondary CT examination, but also is convenient for the doctor to operate and has strong practicability.
Specifically, the registration mark points 2 are distributed on the side surfaces of the guide plate 1 and the wing plate 7 in a discrete mode, and the registration angles are diversified and the registration is more accurate due to the discrete distribution.
Specifically, the guide plate 1 and the wing plate 7 are integrally designed, the integrally designed structure is simple, and the integral strength is high.
Specifically, the occlusion groove 6 is tightly attached to the lower jaw tooth model 3, the shape of the occlusion groove 6 is matched with the shape of the lower jaw tooth of each patient, and the guide plate 1 is stably fixed on the lower jaw tooth model 3 after occlusion of the patient, so that accurate positioning is facilitated, dislocation during operation is avoided, and secondary CT examination is avoided.
specifically, the registration mark point 2 is a cone with a diameter of 1mm and a depth of 1 mm.
In particular, the reference frame 4 is mounted on the chin or body of the mandible model 5.
The utility model discloses a theory of operation and use flow: the utility model discloses, at first for doing the imaging examination, the shooting scope is cranium top to hyoid level, prepare the plaster model of patient's lower jaw dentition afterwards, imaging data deposits to DICOM's format, in the baffle 1 design software of leading-in computer, and rebuild to mandible model 5, plaster dental cast passes through laser scanner, deposit as the three-dimensional virtual dental cast of STL format, with the lower jaw dentition part of three-dimensional virtual dental cast, replace the dentition part of three-dimensional mandible model 5, deposit as new three-dimensional mandible model 5, on new three-dimensional mandible model 5, through reverse back-solving algorithm, design baffle 1;
The registration method is as follows: 1. storing a new three-dimensional mandible model 5, an individualized mandible navigation registration guide plate 1 and an operation simulation scheme as STL format and importing the STL format into navigation system software; 2. the reference frame 4 is mounted on the chin or body of the patient's mandible; 3. the guide plate 1 is worn by a patient in operation; 4. in the navigation system, virtual registration mark points 2 are utilized, and navigation probe points are sequentially used for taking corresponding points on a guide plate 1, so that system registration is completed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A navigational registration guide for an individualized mandible, comprising a guide (1) and a plaster model of the mandible teeth (3), characterized in that: the dental articulatory splint is characterized in that an occlusal groove (6) is designed on the bottom surface of the guide plate (1), wing plates (7) are arranged on the end surfaces of two sides of the guide plate (1), registration mark points (2) are arranged on the side surface of the guide plate (1) and the surfaces of the wing plates (7), a plaster model of mandible teeth (3) forms a virtual mandible tooth model after laser scanning, the dentition part of the virtual mandible tooth model replaces the dentition part of the virtual mandible model reconstructed by imaging data and is used for manufacturing the occlusal groove (6) of the guide plate (1), and a corresponding registration method of the guide plate (1) is adopted, so that a reference frame (4) is installed on a mandible (5) during.
2. the navigational registration guide of an individualized mandible of claim 1, wherein: the registration mark points (2) are distributed on the side surfaces of the guide plate (1) and the wing plate (7) in a discrete mode.
3. The navigational registration guide of an individualized mandible of claim 1, wherein: the guide plate (1), the registration mark points (2) and the wing plates (7) are designed integrally.
4. The navigational registration guide of an individualized mandible of claim 1, wherein: the occlusal groove (6) can be tightly attached to the lower jaw teeth (3).
5. The navigational registration guide of an individualized mandible of claim 1, wherein: the registration mark point (2) is a cone with the diameter of 1mm and the depth of 1 mm.
6. The navigational registration guide of an individualized mandible of claim 1, wherein: the reference frame (4) is mounted on the chin or body of the mandible (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822115821.6U CN209734134U (en) | 2018-12-17 | 2018-12-17 | Navigation registration guide plate for individualized mandible |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822115821.6U CN209734134U (en) | 2018-12-17 | 2018-12-17 | Navigation registration guide plate for individualized mandible |
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| CN209734134U true CN209734134U (en) | 2019-12-06 |
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| CN201822115821.6U Active CN209734134U (en) | 2018-12-17 | 2018-12-17 | Navigation registration guide plate for individualized mandible |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109700531A (en) * | 2018-12-17 | 2019-05-03 | 上海交通大学医学院附属第九人民医院 | Individuation mandibular navigation registration guide plate and its method for registering |
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2018
- 2018-12-17 CN CN201822115821.6U patent/CN209734134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109700531A (en) * | 2018-12-17 | 2019-05-03 | 上海交通大学医学院附属第九人民医院 | Individuation mandibular navigation registration guide plate and its method for registering |
| CN109700531B (en) * | 2018-12-17 | 2021-07-30 | 上海交通大学医学院附属第九人民医院 | Individual mandible navigation registration guide plate and registration method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHANGHAI UEG MEDICAL INSTRUMENT CO.,LTD. Assignor: SHANGHAI NINTH PEOPLE'S HOSPITAL SHANGHAI JIAOTONG University SCHOOL OF MEDICINE Contract record no.: X2022310000031 Denomination of utility model: A navigation and registration guide for individualized mandible Granted publication date: 20191206 License type: Common License Record date: 20220705 |
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| EE01 | Entry into force of recordation of patent licensing contract |