CN113598991A

CN113598991A - Auxiliary guiding device for planting and preparation and use methods thereof

Info

Publication number: CN113598991A
Application number: CN202110869851.XA
Authority: CN
Inventors: 姚明池; 王茜
Original assignee: Rurong Chengdu Medical Technology Co ltd
Current assignee: Rurong Chengdu Medical Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-05
Anticipated expiration: 2041-07-30
Also published as: CN113598991B

Abstract

The invention relates to a planting auxiliary guide device which is characterized by comprising a retention nail, a retention nail sleeve, a reset guide plate, a planting guide plate and a repairing guide plate; the fixture is provided with a retention bulge, the fixture sleeve is provided with a retention groove, and the retention bulge is matched with the retention groove to fix the fixture and the fixture sleeve; the fixture pin sleeve is provided with a bracket, and the bracket is provided with an in-place lock; the reset guide plate, the planting guide plate and the repairing guide plate are respectively provided with a positioning hole base, and the positioning hole base is provided with a positioning hole. The invention provides a planting auxiliary guiding device and a preparation and use method thereof, which reduce the difficulty of osteotomy, planting and repair operations of doctors, reduce the clinical medical cost, improve the operation precision and improve the patient experience.

Description

Auxiliary guiding device for planting and preparation and use methods thereof

Technical Field

The invention relates to a planting auxiliary guiding device, which is applied to cases needing preoperative planning and accurate prediction of operation results, such as oral planting, repairing and the like; the method is particularly suitable for manufacturing the surgical guide plate for the case that the dental implant is implanted into the alveolar crest of the tooth with sufficient height and the crest is sharp or uneven, and belongs to the field of oral medicine.

Background

In the oral clinical examination, patients with many missing teeth, sharp or uneven crest of the alveolar ridge are often encountered. At the moment, the dental implant osteotomy guide plate is manufactured, so that doctors can be helped to accurately perform alveolar bone crest trimming according to CBCT images, then the implant guide plate part is inserted to prepare implant pits, and in order to improve the implant accuracy and realize minimally invasive surgery, more and more doctors hope to adopt the implant surgery guided by the surgical guide plate in the field of oral medicine. However, in the case of a patient who needs to be implanted after the jawbone is cut, the procedure for manufacturing the surgical guide plate by the traditional method is very complicated, and two or more guide plates are needed. When the doctor operates, the doctor needs to wear the bone cutting guide plate, drive the retention nails, take down the retention nails and the bone cutting guide plate after bone cutting, wear the implanting guide plate and drive the retention nails again. The method is a complicated, time-consuming and labor-consuming process, is used for examining physical strength and endurance of doctors, and simultaneously provides a severe requirement for the endurance of patients, so that the comfort of the patients during the treatment is directly reduced.

In the prior art, a doctor usually needs to design an osteotomy guide plate with a retention pin sleeve, then repeats the previous process to design an implant guide plate, and only adds an implant sleeve and does not perform virtual osteotomy for the second time. After the doctor takes the bone cutting guide plate and the implanting guide plate, the doctor firstly cuts bones of the patient and then implants the bone, and the guide plate and the retention nails can be repeatedly taken and worn in the two processes. The operation steps are as follows:

1. scanning the CBCT image and dentition STL surface data of the patient;

2. relevant data is imported into oral implant design software, and implant positions and retention nail positions are planned;

3. designing a bone cutting guide plate;

4. designing a planting guide plate;

3.3D printing;

6. clinical trial and surgery.

The oral implant operation guide plate designed and prepared by adopting the traditional scheme has the defects that: in the manufacturing process, preoperative design and manufacturing work are complex, and a plurality of processes need to repeat the same operation; doctors have a lot of time wasted on picking and wearing the retention nails and the guide plate, resulting in low efficiency; the patient has long waiting period for completing the design, the operation time is long, and meanwhile, the traditional edentulous jaw guide plate is usually fixed by soft tissue, so that the guide plate needs to cover a soft group in a large area, the visual field is not clear during the operation, the flap turning space is small, and the operation is influenced because the cooling cannot be fully performed; in addition, the conventional guide plate cannot plan the position of the prosthesis, and usually the temporary prosthesis is manufactured on site after the implant operation is finished, so that the time for patients to see a doctor is increased, and an accurate and convenient method is urgently needed to improve the dilemma of the cases.

Disclosure of Invention

The auxiliary implanting guiding device provided by the invention completely meets the requirements of the surgical guide plate, not only greatly reduces the difficulty of a doctor in osteotomy, implanting and repairing operations, reduces the cost of clinical medical treatment, but also improves the accuracy of the operations, and the patient experience of seeing a doctor is improved.

In order to solve the technical problems, the invention adopts the following technical scheme:

(1) an auxiliary guiding device for planting comprises a retention nail, a retention nail sleeve, a reset guide plate, a planting guide plate and a repairing guide plate; the fixture is provided with a retention bulge, the fixture sleeve is provided with a retention groove, and the retention bulge is matched with the retention groove to fix the fixture and the fixture sleeve; the fixture pin sleeve is provided with a bracket, and the bracket is provided with an in-place lock; the fixture nail fixing device is characterized in that a reset guide plate, a planting guide plate and a repairing guide plate are respectively provided with a positioning hole base, the positioning hole base is provided with a positioning hole, the fixture nail sleeve and the reset guide plate are fixed through the matching of a positioning lock in place and the positioning hole of the reset guide plate, or the fixture nail sleeve and the planting guide plate are fixed through the matching of the positioning lock in place and the positioning hole of the planting guide plate, or the fixture nail sleeve and the repairing guide plate are fixed through the matching of the positioning lock in place and the positioning hole of the repairing guide plate. The auxiliary guiding device for the personalized implant repair is combined into an auxiliary guiding device for the personalized implant repair in each direction through the matching of the retention protrusions and the retention grooves and the matching of the locating lock and the locating hole in each direction.

(2) The auxiliary guiding device for planting according to (1), wherein the retention protrusions are polygonal retention protrusions, and the retention grooves are polygonal retention grooves.

(3) The planting auxiliary guide device according to (1) or (2), wherein the polygonal retention projection is a triangular retention projection, a rectangular retention projection or a trapezoidal retention projection; the polygonal retention groove is a triangular retention groove, a rectangular retention groove or a trapezoidal retention groove.

(4) The planting auxiliary guide device according to any one of (1) to (3), wherein the seating lock is a polygonal column, and the seating hole is a polygonal hole.

(5) The planting auxiliary guide device according to any one of (1) to (4), wherein the polygonal column is a triangular column, a quadrangular column, a trapezoidal column, a cylindrical column, a hexagonal column or an octagonal column; the polygonal hole is a triangular hole, a quadrilateral hole, a trapezoidal hole, a round hole, a hexagonal hole or an octagonal hole.

(6) The auxiliary guide device for planting according to any one of (1) to (5), wherein the planting guide plate is provided with a planting body sleeve, and the repairing guide plate is provided with a hole for accommodating the temporary abutment.

(7) The auxiliary guide device for planting according to any one of (1) to (6), wherein the implant body is connected to the restoration guide plate via the provisional abutment.

(8) The planting auxiliary guide device according to any one of (1) to (7), the number of the fixture sleeves is preferably three, and the reset guide, the planting guide and the repair guide are respectively provided with a preferably three seat hole bases.

(9) The planting auxiliary guide device according to any one of (1) to (3), wherein the materials of the retention pins, the retention pin sleeves, the reset guide plate, the planting guide plate and the repair guide plate are metal materials or non-metal materials; the metal is titanium, titanium alloy, cobalt-chromium alloy, aluminum or stainless steel; the non-metal material is resin, plastic or PEEK material.

(10) A preparation method of the auxiliary guiding device for planting comprises the following steps:

a) acquiring CBCT data and STL data (for a specific method, see patent document of CN201910605033.1 in the applicant, the content of the patent document is introduced into the application), and matching;

b) determining implant and fixture positions: obtaining the positions of the pre-arranged teeth and the jaw bone according to the matching information of the CBCT data and the STL data, then determining the positions of the implant and the fixture according to the positions of the pre-arranged teeth and the jaw bone, determining the position of the fixture protrusion according to the position of the fixture, and generating the fixture;

c) creating a retention pin sleeve: determining the position of a retention nail sleeve according to the positions of the implant and the retention nail, determining the position of a retention groove according to the position of a retention bulge, designing a bracket on the retention nail sleeve, designing a positioning lock on the bracket, and generating the retention nail sleeve;

d) generating a reset guide plate:

i. generating a reset fence body portion from the STL data;

determining the positions of the locating hole base and the locating hole of the reset guide plate according to the position of the locating lock of the retention nail sleeve; the positioning hole of the reset guide plate is matched with the positioning lock of the fixing pin sleeve;

connecting the main body part of the reset guide plate and the seat hole base into a whole to generate a reset guide plate;

e) generating a planting guide plate:

i. determining the positions of the positioning hole base and the positioning hole of the planting guide plate according to the position of the positioning lock of the retention nail sleeve; the positioning hole of the planting guide plate is matched with the positioning lock of the fixing pin sleeve;

designing an implant sleeve of the implant guide plate;

connecting the positioning hole base of the planting guide plate and the implant sleeve into a whole to generate the planting guide plate;

f) generating a repair guide plate:

i. performing virtual tooth arrangement according to the matching information of the CBCT data and the STL data to obtain a prosthesis;

selecting a provisional abutment according to the selected implant, the provisional abutment penetrating the prosthesis;

determining the positions of the seat hole base and the seat hole of the repair guide plate according to the position of the position lock of the retention nail sleeve; the positioning hole of the repair guide plate is matched with the positioning lock of the fixing pin sleeve;

and iv, connecting the restoration body and the base of the positioning hole of the restoration guide plate into a whole to generate the restoration guide plate.

(11) The manufacturing method of the planting auxiliary guide device according to (10), further comprising a step g): outputting the retention nails, the retention nail sleeves, the reset guide plate, the planting guide plate and the repair guide plate generated in the steps b), c), D), e) and f) respectively and performing 3D printing or numerical control cutting respectively or together.

(12) A method of using a supplemental guidance device for implantation, comprising the steps of:

a) the retention nail sleeve and the reset guide plate are combined into a whole: the retention nail sleeve and the reset guide plate are combined into a whole through the matching of the positioning lock on the retention nail sleeve and the positioning hole on the reset guide plate;

b) putting the combination of the retention nail sleeve and the reset guide plate into the mouth of a patient;

c) implanting the retention nail: implanting the retention nail into the bone of the patient through the retention nail sleeve, adjusting the direction to completely retain the retention nail and the retention nail, and then taking out the reset guide plate, wherein only the retention nail and the retention nail sleeve are reserved;

d) the planting guide plate and the retention nail sleeve are combined into a whole: the planting guide plate and the retention nail sleeve are combined into a whole through the matching of the positioning lock on the retention nail sleeve and the positioning hole on the planting guide plate;

e) implanting an implant through the implant sleeve of the implant guide plate, and then taking down the implant guide plate;

f) the repair guide plate and the retention nail sleeve are combined into a whole: the repair guide plate and the retention nail sleeve are combined into a whole through the matching of the positioning lock on the retention nail sleeve and the positioning hole on the repair guide plate; placing a bonding material around the temporary base station to bond the temporary base station and the repair guide plate together;

g) the sleeve of the retention nail is taken down, the base of the locating hole on the repair guide plate is abraded, and the repair guide plate worn by the patient is used as a temporary restoration.

The auxiliary guiding device for planting and the preparation and use method thereof provided by the invention have the following beneficial technical effects:

1. the invention does not need to manufacture the osteotomy guide plate and the implantation guide plate respectively, can greatly shorten the manufacturing period, simplify the clinical operation procedure of a doctor, reduce the waiting time of a patient, reduce the clinical medical cost and greatly improve the patient experience.

2. According to the height and width information of the bone plane provided by the guide plate; the implant implantation direction information and the occlusion information of the repaired dentition can be obtained, a doctor can perform the implant implantation by referring to the indicated osteotomy plane and the indicated depth, axial direction and the like of the implantation guide plate during the operation, immediate load is performed according to the occlusion information provided by the repair guide plate, and the immediate repair of the implantation is finally completed.

3. In the whole operation process, only 3-4 retention pins and retention pin sleeves are left in the mouth of a patient, the operation visual field is good, the cooling effect is good, and the operation experience of doctors is greatly improved.

4. The invention is also suitable for special cases which can not adapt to the traditional planting guide plate, such as: the patient has difficulty such as limited mouth opening or serious insufficient bone height.

The meaning of the relevant terms in this patent is as follows:

CBCT (Cone Beam computed tomography) is a cone Beam computed tomography apparatus for acquiring three-dimensional image data information of the oral cavity.

CBCT data refers to information about jaw bones, tooth bodies and the like obtained by CBCT.

STL (Standard triangle language) a file format for representing triangle meshes. The file format of the method is very simple and the method is widely applied.

STL data refers to information relating to dental tissue, soft tissue, and the like in the oral cavity. The STL data containing information about dental tissue, soft tissue, etc. can be obtained by performing a fine scan of the surface of the oral tissue using a high-precision oral surface scanning device.

5. Radiation Guide (Scan application Guide): a resin auxiliary device similar to a removable denture realizes simultaneous development of tooth arrangement information in CBCT.

6. A Bone Reduction Guide (Bone Reduction Guide), a Guide for cutting off the sharp or uneven part of the crest of the alveolar ridge, and then inserting the implant Guide part to prepare the implant cavity;

7. a retention nail: the dental implant is mainly used in the oral edentulous implant operation to avoid the displacement of the guide plate caused by the accessibility of mucosa.

8. Sleeve barrel: the fixture sleeve and the implant sleeve are used for guiding a clinician to implant the fixture or the implant accurately according to the designed position of the fixture or the implant.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of a fixture with trapezoidal retention protrusions;

FIG. 2 is a schematic view of a retention pin sleeve with trapezoidal retention grooves;

FIG. 3 is a schematic view of a retention pin with triangular retention protrusions;

FIG. 4 is a schematic view of a retaining pin sleeve with triangular retaining grooves;

FIG. 5 is a schematic view of a retention pin with rectangular retention protrusions;

FIG. 6 is a schematic view of a retention pin sleeve having rectangular retention grooves;

FIG. 7 is a schematic view of the engagement of the retention pin with the retention pin sleeve;

FIG. 8 is a schematic view of the retention pin fully secured to the retention pin sleeve;

FIG. 9 is a schematic structural view of a reset guide plate;

FIG. 10 is a schematic view of the reset guide plate after being secured to the retention pin sleeve;

FIG. 11 is a schematic view of the implanted fixture;

FIG. 12 is a schematic view of the retention pin after being implanted in the posterior orifice and the reduction guide plate removed;

FIG. 13 is a structural view of an implant guide;

FIG. 14 is a schematic view of the implant guide plate and the retention pin sleeve after they are secured;

FIG. 15 is a schematic structural view of a repair guide;

FIG. 16 is a schematic view of the prosthetic guide plate secured to the retention pin sleeve;

reference numbers in the figures: the fixture comprises a fixture 1, a fixture sleeve 2, a trapezoidal retention bulge 3, a trapezoidal retention groove 3-1, a triangular retention bulge 4, a triangular retention groove 4-1, a rectangular retention bulge 5-1, a rectangular retention groove 5-1, a bracket 6, a lock in place 7, a seat hole base 8, a seat hole 8-1, a reset guide plate 9, a planting guide plate 10, an implant sleeve 10-1 and a repair guide plate 11.

Detailed Description

Example 1:

as shown in fig. 1 to 16, an auxiliary guiding device for implantation comprises a retention pin 1, a retention pin sleeve 2, a reduction guide 9, an implantation guide 10 and a repair guide 11; the retention nail 1 is provided with a retention bulge, the retention bulge is a polygonal retention bulge, and the polygonal retention bulge is a triangular retention bulge 4 (shown in figure 3), a rectangular retention bulge 5 (shown in figure 5) or a trapezoidal retention bulge 3 (shown in figure 1). The retention nail sleeve 2 is provided with a retention groove which is a polygonal retention groove, and the polygonal retention groove is a triangular retention groove 4-1 (shown in figure 4), a rectangular retention groove 5-1 (shown in figure 6) or a trapezoidal retention groove 3-1 (shown in figure 2). The fixture 1 is fixed to the fixture sleeve 2 by the engagement of the retention protrusions and the retention grooves (see fig. 8). A bracket 6 is arranged on the retention nail sleeve 2, and an in-place lock 7 is arranged on the bracket 6; the reset guide plate 9, the planting guide plate 10 and the repair guide plate 11 are respectively provided with a positioning hole base 8, the positioning hole base 8 is provided with a positioning hole 8-1, the retention nail sleeve 2 is fixed with the reset guide plate 9 through the matching of the positioning lock 7 and the positioning hole 8-1 of the reset guide plate 9 (as shown in figure 10), or the retention nail sleeve 2 is fixed with the planting guide plate 10 through the matching of the positioning lock 7 and the positioning hole 8-1 of the planting guide plate 10 (as shown in figure 14), or the retention nail sleeve 2 is fixed with the repair guide plate 11 through the matching of the positioning lock 7 and the positioning hole 8-1 of the repair guide plate 10 (as shown in figure 16). The auxiliary guiding device for the personalized implant repair is combined into an auxiliary guiding device for the personalized implant repair in each direction through the matching of the retention protrusions and the retention grooves and the matching of the locating lock and the locating hole in each direction.

The locating lock 7 is a polygonal column, and the locating hole 8-1 is a polygonal hole. The polygonal column is a triangular column, a quadrangular column, a trapezoidal column (as shown in fig. 7), a cylinder, a hexagonal column or an octagonal column; the polygonal holes are triangular holes, quadrilateral holes, trapezoidal holes (as shown in fig. 9), round holes, hexagonal holes and octagonal holes.

Preferably, the implant guide 10 is provided with an implant sleeve 10-1 (as shown in fig. 13), and the repair guide 11 is provided with a hole for accommodating the temporary abutment. The implant body is connected with the repair guide plate through the temporary abutment. The number of the retention nail sleeves 2 is preferably three, and the reset guide plate 9, the planting guide plate 10 and the repair guide plate 11 are respectively provided with a plurality of seat hole bases 8 which are preferably three.

The retention nails, the retention nail sleeves, the reset guide plate, the implantation guide plate and the repair guide plate are made of metal materials or non-metal materials; the metal is titanium, titanium alloy, cobalt-chromium alloy, aluminum or stainless steel; the non-metal material is resin, plastic or PEEK material.

Example 2:

a preparation method of the auxiliary guiding device for planting comprises the following steps:

d) generating a reset guide plate:

i. generating a reset fence body portion from the STL data;

e) generating a planting guide plate:

designing an implant sleeve of the implant guide plate;

f) generating a repair guide plate:

Preferably, further comprising step g): outputting the retention nails, the retention nail sleeves, the reset guide plate, the planting guide plate and the repair guide plate generated in the steps b), c), D), e) and f) respectively and performing 3D printing or numerical control cutting respectively or together.

Example 3:

a method of using a supplemental guidance device for implantation, comprising the steps of:

g) the fixing nail sleeve is taken down, the seat hole base on the repair guide plate is abraded, and the repair guide plate worn by the patient serves as a temporary seat.

The above embodiments are not intended to be exhaustive or to limit the invention to other embodiments, and the above embodiments are intended to illustrate the invention and not to limit the scope of the invention, and all applications that can be modified from the invention are within the scope of the invention.

This written description uses examples to illustrate the invention, including the best mode, and also to enable any person skilled in the art to make and use the invention. The patentable scope of the invention includes the contents of the claims, and the contents of the detailed description and other examples within the specification. Such other examples are intended to be within the scope of the claims, provided they contain the features described in the same written language as the claims, or they contain features described in a similar written language with no essential difference from the claims.

All cited patents, patent applications, and other references herein are incorporated by reference in their entirety. However, if a term in the present application conflicts with a term in the incorporated reference, the term from the present application takes precedence.

It should be noted that the terms "first," "second," and the like do not denote any order, quality, or importance, but rather are used to distinguish one technical feature from another. The modifier "about" used in connection with a quantity is inclusive of the stated value and the meaning dictated by the context. (e.g., it contains errors in measuring a particular quantity).

Claims

1. An auxiliary guiding device for planting is characterized by comprising a retention nail, a retention nail sleeve, a reset guide plate, a planting guide plate and a repairing guide plate; the fixture is provided with a retention bulge, the fixture sleeve is provided with a retention groove, and the retention bulge is matched with the retention groove to fix the fixture and the fixture sleeve; the fixture pin sleeve is provided with a bracket, and the bracket is provided with an in-place lock; the fixture nail fixing device is characterized in that a reset guide plate, a planting guide plate and a repairing guide plate are respectively provided with a positioning hole base, the positioning hole base is provided with a positioning hole, the fixture nail sleeve and the reset guide plate are fixed through the matching of a positioning lock in place and the positioning hole of the reset guide plate, or the fixture nail sleeve and the planting guide plate are fixed through the matching of the positioning lock in place and the positioning hole of the planting guide plate, or the fixture nail sleeve and the repairing guide plate are fixed through the matching of the positioning lock in place and the positioning hole of the repairing guide plate.

2. The planting assistance guide device according to claim 1, wherein: the retention protrusions are polygonal retention protrusions, and the retention grooves are polygonal retention grooves.

3. The planting assistance guide device according to claim 2, wherein: the polygonal retention protrusions are triangular retention protrusions, rectangular retention protrusions or trapezoidal retention protrusions; the polygonal retention groove is a triangular retention groove, a rectangular retention groove or a trapezoidal retention groove.

4. The planting assistance guide device according to claim 1, wherein: the locating lock is a polygonal column, and the locating hole is a polygonal hole.

5. The planting assistance guide device according to claim 4, wherein: the polygonal column comprises a triangular column, a quadrangular column, a trapezoidal column, a cylinder, a hexagonal column or an octagonal column; the polygonal holes comprise triangular holes, quadrilateral holes, trapezoidal holes, round holes, hexagonal holes and octagonal holes.

6. The novel planting assistance guide device according to claim 1, characterized in that: the implant guide plate is provided with an implant sleeve, and the repair guide plate is provided with a hole for accommodating the temporary base station.

7. The novel supplementary guide of planting device of claim 6, characterized in that: the implant body is connected with the repair guide plate through the temporary abutment.

8. The planting assistance guide device according to claim 1 to 7, wherein: the number of the retention nail sleeves is three, and three positioning hole bases are respectively arranged on the reset guide plate, the planting guide plate and the repairing guide plate.

9. The planting assistance guide device according to any one of claims 1 to 7, wherein: the retention nails, the retention nail sleeves, the reset guide plate, the implantation guide plate and the repair guide plate are made of metal materials or non-metal materials; the metal is titanium, titanium alloy, cobalt-chromium alloy, aluminum or stainless steel; the non-metal material is resin, plastic or PEEK material.

10. The preparation method of the auxiliary guiding device for the planting is characterized by comprising the following steps:

a) acquiring CBCT data and STL data, and matching;

d) generating a reset guide plate:

i. generating a reset fence body portion from the STL data;

e) generating a planting guide plate:

designing an implant sleeve of the implant guide plate;

f) generating a repair guide plate:

11. The method for preparing a planting auxiliary guide device according to claim 10, further comprising a step g): outputting the retention nails, the retention nail sleeves, the reset guide plate, the planting guide plate and the repair guide plate generated in the steps b), c), D), e) and f) respectively and performing 3D printing or numerical control cutting respectively or together.

12. The use method of the auxiliary guiding device for the planting is characterized by comprising the following steps: