CN105342689A - Method for designing assistant positioning sleeve of personalized navigation template - Google Patents
Method for designing assistant positioning sleeve of personalized navigation template Download PDFInfo
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- CN105342689A CN105342689A CN201410417440.7A CN201410417440A CN105342689A CN 105342689 A CN105342689 A CN 105342689A CN 201410417440 A CN201410417440 A CN 201410417440A CN 105342689 A CN105342689 A CN 105342689A
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- navigation template
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- positioning sleeve
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Abstract
The invention relates to a method for designing an assistant positioning sleeve of a personalized navigation template. The method mainly includes: acquiring data of a lesion location according to advanced medical image CT/MRI, and combining with reverse engineering and digital medicine to complete designing of the personalized navigation template; on this basis, according to length and inner diameter of a navigation template positioning pipeline, completing designing of the assistant positioning sleeve and an assistant supporting handle in AutoCAD software; after designing of the sleeve and an assistant supporting structure is completed, adopting a titanium alloy material, and utilizing conventional cutting or 3D printing technology to process the assistant positioning sleeve. CT/MRI data and reverse engineering technology are utilized to complete accurate designing of the navigation template; on the basis of the navigation template, the assistant positioning sleeve of the navigation template is specially designed in order to avoid breakage, wearing and sliding after being positioned of the navigation tube and postoperative infection caused by a navigation tube in the process when the navigation template is used to assist the operation process, and accurate clamping is realized by utilizing a sawtooth-shaped structure at the end of the positioning sleeve; the sleeve is made by combining the titanium alloy material, so that postoperative infection caused by the fact that bits generated by wearing of the navigation template are left in the body of a patient in the process of operation is avoided, and accurate positioning in the process of operation is realized.
Description
Technical field
Patent of the present invention is the location difficulty existed during the individuation location navigation template used for current cervical vertebra, spinal column, lumbar vertebra and joint part uses, there are positioning pipe wearing and tearing, break, cause in bone surgery process and occur burst injury, postoperative initiation is infected accordingly.In order to improve above-mentioned situation, bone surgery assisted by a set of individuation navigation template auxiliary positioning sleeve of specialized designs, avoids the accident surgery that meets accident, and improves location of operation precision.
Background technology
In the bone surgery that spinal surgery etc. is correlated with, utilizing pedicle screw internal fixtion to be a kind of comparatively stable spinal column fixed form, is the modus operandi of a kind of relative maturity that current numerous hospital generally adopts.Known anatomical structure, the pedicle of vertebral arch anatomical structure of human body reduces gradually from lumbar vertebra, thoracic vertebra, cervical vertebra, in order to improve the positioning precision of whole operation process, reduce the degree of risk of operation, there is various auxiliary locator, the appearance of individuation navigation template just well solves this difficult problem, facilitates the development of whole spinal surgery.
The spinal disease caused because of scoliosis is the serious disease perplexing extensive patients, and particularly occur in the idiopathic scoliosis in population of adolescent, row spine corrective operation risk is higher in this case.Compared with pedicle of lumbar vertebral arch, thoracic vertebral pedicle anatomical variation is large, diameter is little.Diameter is less and surrounding anatomical structures complicated, therefore for spinal surgery doctor, the implantation surgery of thoracic pedicle screw has certain challenge, and danger is larger.Use the operation of individuation locating template secondary row pedicle of vertebral arch, greatly can reduce operation risk, improve success rate.
For the operation that the situations such as basilar impression are complicated especially and risk factor is high, using pedicle screw fixing is also very effective method, but because cervical vertebra anatomy relationship is complicated, pedicle of vertebral arch variability is large, pedicle screw correctly inserts difficulty, the risk of injured nerve, blood vessel is comparatively large, and its clinical practice is restricted.How to insert Pedicle Screw Placement in Lower Cervical is the clinical problem extremely paid close attention to safety and precise always, and individuation locating template can play very important effect in auxiliary pedicle of vertebral arch operation process.
The success or not of TKA and be always the problem that people pay close attention to the Study on influencing factors of clinical efficacy.At present, the treatment of osteoarthritis remains a great problem of medical circle.Conventional total knee replacement operation is undertaken in marrow by mechanical guiding device in preoperative X-ray film inspection and art, marrow outside fix osteotomy patient relies on naked eyes, feel and experience to locate anatomic landmark, the lower limb line of force and prosthese rotation axis, and then manual osteotomy of ruling, prosthese are placed and soft tissue balance.This complete based on the observation of naked eyes to limbs and prosthese para-position, have very large subjectivity to line, directly affects the reliability of this locate mode and the accuracy of operation, even cause the failure of performing the operation.In order to change this predicament, occurred Computer navigation surgery and individuation locating template auxiliary positioning, computerized navigation set is too expensive, and complicated operation cannot use on a large scale.The technical operation of individuation locating template is simple, cheap, easy to utilize.But the navigation template using resin or other material to make there will be the situations such as chip, if too high by metal manufacturing cost, thus this problem for individuation navigation template specialized designs for auxiliary socket.
Summary of the invention
Patent of the present invention is that the location faced to solve spinal surgery is forbidden, and uses in individuation navigation template assisted surgical procedures and occurs the emergency case such as chip, fracture, avoid the generation of postoperative infection situation simultaneously.Specially for cervical vertebra, thoracic vertebra, lumbar vertebra and joint designs individuation navigation template auxiliary socket.
For cervical vertebra, from the anatomical structure of cervical vertebra, its pedicle of vertebral arch is the most tiny, rupture to solve more than navigation template that occurs in position fixing process, location electric drill is caused to injure nerve and the tremulous pulse of patient, must the size of Control architecture locating hole well, general die plate locating holes internal diameter is between 2.5-3mm, external diameter is no more than 8mm, and the length of positioning pipe is between 10-15mm.
Because skeleton surface exists synovial membrane, in the process using the medical apparatus and instruments such as pedicle screw, there will be slippage, easily cause rig to occur drawing partially in location drilling process.In order to improve this situation, improving positioning precision, avoiding occurring drawing inclined situation.The present invention is jagged top in auxiliary positioning sleeve ends specialized designs, realizes accurately locating in position fixing process, prevent slippage.
For the individuation navigation template of thoracic vertebra, lumbar vertebra and joint part, need the working place increasing operation in operation process, what also specialized designs abutment sleeve was auxiliary stretches out handle, facilitates doctor to complete whole operation accurately.The pedicle of vertebral arch at thoracic vertebra, lumbar vertebra position compares the slightly thick of cervical vertebra, for the individuation navigation template at thoracic vertebra and lumbar vertebra position, its internal diameter is generally between 3-4mm, external diameter is generally at 8mm, location pipe range is between 10-18mm, and during Design Orientation sleeve, its internal diameter should 0.2-0.5mm less of positioning pipe internal diameter.
The individuation navigation template at the position such as hip joint, knee joint position can well realize the accurate location of joint replacement.Occur that in order to avoid using individuation navigation template in joint replacement process boring is drawn partially or occurs that positioning pipe is damaged, causes postoperative infection.Patent of the present invention devises corresponding abutment sleeve on the basis of positioning pipe, and the abutment sleeve diameter of joint part is 4mm, and external diameter is 6-8mm, and pipeline is long is 15-20mm, and during Design Orientation sleeve, its internal diameter should between 3.5-3.8mm.
Patent of the present invention there will be chip or wearing and tearing in individuation navigation template supporting process, the individuation auxiliary positioning sleeve of special invention design.The abutment sleeve that patent of the present invention uses can use titanium alloy manufacture, because abutment sleeve shape is tiny, use traditional chip to be processed with certain difficulty, the precision manufactureing of abutment sleeve can be realized in conjunction with 3D printing technique, shorten process time and cost.
Accompanying drawing explanation
Accompanying drawing 1 is cervical vertebra sleeve front view.
Accompanying drawing 2 is cervical vertebra sleeve top view.
Accompanying drawing 3 is cervical vertebra quill mapping.
Accompanying drawing 4 is that sleeve front view is saved in thoracic vertebra, lumbar vertebra and pass.
Accompanying drawing 5 is that sleeve top view is saved in thoracic vertebra, lumbar vertebra and pass.
Accompanying drawing 6 is that quill mapping is saved in thoracic vertebra, lumbar vertebra and pass.
Detailed description of the invention
Tell about patent of the present invention with regard to emphasis below and to assist application in bone surgery at individuation navigation template.For the spinal operation that the basilar impression in spinal surgery, scoliosis, prolapse of lumbar intervertebral disc etc. are complicated, be difficult to iff relying on the surgical experience of doctor complete whole operation accurately, and postoperative effect is also often not ideal, it is universal that this also makes corresponding spinal surgery knowledge be difficult to.Along with popularizing of advanced Medical Imaging Technology, the appearance of computer assisted navigation equipment, has promoted the development of spinal column and joint surgery.Because computerized navigation set is expensive, be difficult to popularize on a large scale, occurred that individuation navigation template assists bone surgery based on 3D printing technique and reverse Engineering Technology subsequently.Use individuation navigation template to assist bone surgery to compare computerized navigation set greatly to have saved fund and time cost, improve the positioning precision of operation.
Utilize after the CT/MRI data of patient complete the three-dimensional reconstruction of patient's pathological changes number positional certificate in conjunction with reverse-engineering and 3D printing technique, complete the whole spinal surgery of individuation navigation template Design assistant based on individual patients and joint replacement surgery.Individuation navigation template auxiliary socket is exactly according to the internal diameter of template and the supporting auxiliary socket of profile arrangement after locating template design.
Utilize AutoCAD mapping software, according to internal diameter and the length dimension Design assistant abutment sleeve of individuation navigation template targeted duct, because skeleton surface exists synovial membrane, slippage is there is in sleeve position fixing process, locate most advanced and sophisticated design class like jagged auxiliary positioning end at sleeve, improve positional accuracy.
In position fixing process, first use the binding face calcaneus bone surface matching of individuation navigation template, then auxiliary socket is inserted in navigation template positioning pipe, utilize abutment sleeve tip clamping bone surface.In thoracic vertebra and operation on joint, in order to leave enough working places to surgical doctor, individuation navigation template easy to use, the sleeve handle that also specialized designs is auxiliary, this can be enclosed within upper cartridge, can conveniently hold in operation process, improves the use motility of individuation navigation template.
After completing the design of auxiliary positioning sleeve, need the processing positioning sleeve.The material of sleeve must be the good and metal that is that be safe from harm to human body of wearability, can select titanium alloy material.The mode that processing mode can select chip to process, along with the fast development of 3D printing technique, because abutment sleeve size is little, pays the utmost attention to the processing that 3D printing technique realizes abutment sleeve.On this basis, resin mould test and cadaver sample test are carried out in the comprehensive use for abutment sleeve and individuation navigation template.
Claims (6)
1. individuation navigation template auxiliary positioning sleeve design is to occur when solving and use navigation template to carry out assisted surgery in the operation such as spinal surgery and joint replacement that targeted duct weares and teares, breaking causes the problems such as chip remains, custom-designed auxiliary locator, avoids causing postoperative infection and other burst fortuitous event.
2. individuation navigation template auxiliary positioning sleeve design according to claim 1, it is characterized in that utilizing after CT/MRI data complete the design of individuation locating template, the internal diameter of navigation Template Location pipeline and length dimension complete the design of abutment sleeve in AutoCAD software on this basis.
3. individuation navigation template auxiliary positioning sleeve design according to claim 1, it is characterized in that described sleeve is in lumbar vertebra and joint replacement process, when using individuation abutment sleeve to complete operation in order to leave enough operation technique spaces to surgical doctor, specialized designs, with the auxiliary handle of sleeve coupling, is convenient to doctor and is carried out operation technique.
4. individuation navigation template auxiliary positioning sleeve design according to claim 1, it is characterized in that described abutment sleeve in assisted surgical procedures to realize accurate location, avoid occurring the situations such as slippage, in abutment sleeve end, specialized designs has zigzag to assist gripping part, makes can well be clamped on skeleton top layer in operation process.
5. individuation navigation template auxiliary positioning sleeve design according to claim 1, it is characterized in that described abutment sleeve due to shape less, use the whole course of processing more complicated of traditional machining, and the machining of titanium alloy is more difficult, along with the development of 3D printing technique, can, in conjunction with 3D printing technique, the mode of piling up layer by layer be utilized to complete the processing of whole sleeve.
6. individuation navigation template auxiliary positioning sleeve design according to claim 1, it is characterized in that designed auxiliary positioning sleeve need support the use with navigation template, resin mould is utilized to carry out model test, on this basis in conjunction with accuracy and the practicality of the whole aided positioning system of cadaver sample verification experimental verification.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410417440.7A CN105342689A (en) | 2014-08-24 | 2014-08-24 | Method for designing assistant positioning sleeve of personalized navigation template |
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| CN201410417440.7A CN105342689A (en) | 2014-08-24 | 2014-08-24 | Method for designing assistant positioning sleeve of personalized navigation template |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175911A (en) * | 2016-08-11 | 2016-12-07 | 陈昱霖 | A kind of guider for putting nail |
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| US20050143745A1 (en) * | 2003-12-30 | 2005-06-30 | Medicinelodge, Inc. | Instruments and methods for preparing a joint articulation surface for an implant |
| CN101365396A (en) * | 2005-11-30 | 2009-02-11 | 3形状股份有限公司 | Impression scanning for manufacturing of dental restorations |
| CN101816590A (en) * | 2010-03-10 | 2010-09-01 | 南方医科大学 | Method for manufacturing navigation template of human bone surgery and female die thereof |
| CN103099669A (en) * | 2013-03-06 | 2013-05-15 | 吴志宏 | Single-side pedicle screw-driving auxiliary device and manufacturing method thereof |
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2014
- 2014-08-24 CN CN201410417440.7A patent/CN105342689A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050143745A1 (en) * | 2003-12-30 | 2005-06-30 | Medicinelodge, Inc. | Instruments and methods for preparing a joint articulation surface for an implant |
| CN101365396A (en) * | 2005-11-30 | 2009-02-11 | 3形状股份有限公司 | Impression scanning for manufacturing of dental restorations |
| CN101816590A (en) * | 2010-03-10 | 2010-09-01 | 南方医科大学 | Method for manufacturing navigation template of human bone surgery and female die thereof |
| CN103099669A (en) * | 2013-03-06 | 2013-05-15 | 吴志宏 | Single-side pedicle screw-driving auxiliary device and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175911A (en) * | 2016-08-11 | 2016-12-07 | 陈昱霖 | A kind of guider for putting nail |
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