CN103083117A - Joint prosthesis navigation model testing system - Google Patents
Joint prosthesis navigation model testing system Download PDFInfo
- Publication number
- CN103083117A CN103083117A CN2013100194939A CN201310019493A CN103083117A CN 103083117 A CN103083117 A CN 103083117A CN 2013100194939 A CN2013100194939 A CN 2013100194939A CN 201310019493 A CN201310019493 A CN 201310019493A CN 103083117 A CN103083117 A CN 103083117A
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- China
- Prior art keywords
- die trial
- prosthesis
- template
- navigation
- signal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4684—Trial or dummy prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The invention discloses a joint prosthesis navigation model testing system which comprises a prosthesis testing model which is provided with a signal sending device and used for being arranged on a bone bed to carry out a prosthesis test, a signal receiving device used for receiving signals sent by the signal sending device on the prosthesis testing model, and a data processing device used for processing the signals received by the signal receiving device to obtain real-time location information of the prosthesis testing model. The system can provide model testing information in real time in a test before prosthesis is arranged. Meanwhile more accurate information is provided for a doctor so that the doctor can obtain better intraoperative evaluation.
Description
Technical field
The present invention relates to technical field of medical instruments, relate in particular to a kind of articular prosthesis navigation die trial system.
Background technology
Total knee replacement be treat at present late period osteoarthritis or other in late period pathologic changes of knee joint main method.The main sclerotin of removing the knee joint surface breakdown of this operation, and corresponding prosthese is installed.The most frequently used knee-joint prosthesis mainly comprises three parts at present: the metal prostheses of femur side, the metal prostheses of tibial side and corresponding knee joint polyethylene pad.The doctor need to carry out corresponding osteotomy according to Design in the process of performing the operation, then need to adopt the metal test mould of femur and tibial side and the plastics die trial pad (as shown in Figure 1) of alternative polyethylene pad to test before prosthese is installed, adopt the prosthese of this model, size for the impact of motion of knee joint pattern and the impact of soft tissue tension with observation.But installing at present the later test of die trial mainly relies on doctor's experience to judge.
Navigation system has been applied to clinical at present widely, and obtain satisfied clinical effectiveness, technique has obtained rapidly promoting at world wide, navigation system can be divided into machinery, ultrasonic, optics and electromagnetic navigation system according to the kind of tracker at present several.Adopt navigation system to carry out total knee replacement and can provide the position of apparatus and the direction of advancing for the doctor, thereby lay more accurately the prosthese position, instruct the doctor to perform the operation more accurately.But in the navigation system of present total knee replacement, tracker generally is placed on femur and tibia in order to form the operation of rigid body guided operation, may destroy the risk that the tibia femoral cortex causes that bone strength reduces increases postoperative fracture in art in this process, lay Template after operation is completed.But what present navigation system was selected when laying Template is also traditional Template, although navigation system can provide certain interior outside tension data, can not completely provide the motor pattern of whole Template and the related data of knee joint peripheral soft tissue tension.
The new electromagnetic technique of electromagnetic navigation utilization in navigation system obtains position and the direction of tracker, adopt simultaneously real-time 3D measuring system, have meticulous, accurate, multi-functional characteristics, the real-time tracking intervention apparatus, satisfy the specific (special) requirements of delicate procedure at an easy rate.The sensor coil that electromagnetic navigation system provides can be inserted in intervention apparatus, and under the magnetic field that system produces, thereby position and direction that sensor coil sends signal and accepted to learn by system the apparatus that has been placed into sensor coil are carried out real-time navigation to operation.
Summary of the invention
The technical problem that (one) will solve
The technical problem to be solved in the present invention is: a kind of articular prosthesis navigation die trial system is provided, and the test that is used for before laying prosthese provides the die trial positional information in real time, and in better art, assessment provides information more accurately for the doctor obtains.
(2) technical scheme
For addressing the above problem, the invention provides a kind of articular prosthesis navigation die trial system, comprising:
Template is provided with sender unit, is used for being arranged on carrying out the prosthese test on the bone bed;
Signal receiving device is used for receiving the signal that the sender unit on described Template sends;
Data processing equipment is used for the signal that described signal receiving device receives is processed, and obtains the real-time position information of described Template.
Preferably, also comprise display device, the real-time position information that is used for Template that described data processing equipment is obtained shows.
Preferably, described Template is the knee-joint prosthesis die trial, comprises the knee joint pad die trial of femoral prosthesis die trial, tibial prosthesis die trial and some different-thickness.
Preferably, each Template is provided with at least three sender units.
Preferably, the not coplanar setting of at least three sender units on described each Template.
Preferably, also comprise storage device, be used for the shape information of storing described Template.
Preferably, the real-time position information of described Template is the real-time three-dimensional solid space shape information of Template.
Preferably, described sender unit comprises one or more in infrared signal discharger, electromagnetic signal emitting device.
Preferably, described data processing equipment also is used for skeleton positional information corresponding to the calculated signals of described signal receiving device reception.
(3) beneficial effect
System of the present invention can provide the die trial positional information in the test before laying prosthese in real time, facilitates the doctor to select more sizeable prosthese to lay, and in better art, assessment provides information more accurately for the doctor obtains simultaneously.
Sender unit of the present invention is arranged on Template, compare with being arranged on skeleton of prior art, easier for installation, the installation site is more flexible, side effect to human body is less, and the shape size information of Template can be stored, conveniently call in advance.
Description of drawings
Fig. 1 is the structural representation of knee-joint prosthesis die trial in prior art;
Fig. 2 is the structural representation of embodiment of the present invention knee-joint prosthesis navigation die trial system;
Fig. 3 is the structural representation of embodiment of the present invention knee-joint prosthesis die trial;
Fig. 4 utilizes the die trial of embodiment of the present invention knee-joint prosthesis to carry out the schematic flow sheet of prosthese test;
Wherein, 1: the femoral prosthesis die trial; 2: the tibial prosthesis die trial; 3: the die trial of knee joint pad; 4: sender unit.
The specific embodiment
That the present invention is described in detail is as follows below in conjunction with drawings and Examples.
As shown in Figure 2, the present embodiment has been put down in writing a kind of articular prosthesis navigation die trial system, comprising:
Template is provided with sender unit 4, is used for being arranged on carrying out the prosthese test on the bone bed; As test the situations such as soft tissue tension, prosthese size;
Signal receiving device is used for receiving the signal that the sender unit 4 on described Template sends;
Data processing equipment is used for the signal that described signal receiving device receives is processed, and obtains the real-time position information of described Template.
In the present embodiment, described articular prosthesis navigation die trial system also comprises display device, and the real-time position information that is used for Template that described data processing equipment is obtained shows, makes the positional information in test be observed more intuitively.In other embodiments of the invention, described system can also not have described display device, each positional information during the doctor is tested according to data message.
As shown in Figure 3, Template described in the present embodiment is the artificial knee joint prosthesis die trial, comprises the knee joint pad die trial 3 of femoral prosthesis die trial 1, tibial prosthesis die trial 2 and some different-thickness.Described femoral prosthesis die trial 1, tibial prosthesis die trial 2 and knee joint pad die trial 3 are identical with traditional knee-joint prosthesis die trial profile, just be provided with on it initiatively or tibial prosthesis die trial 2 described in passive sender unit 4(Fig. 3 and knee joint pad die trial 3 on sender unit 4 not shown).Certainly, in other embodiments of the invention, described Template can also be the Template in other joint of organism.
In the present embodiment, each Template is provided with at least three sender units 4; And the not coplanar setting of at least three sender units 4 on described each Template.
In the present embodiment, described system also comprises storage device, is used for the shape information of storing described Template.The shape of each die trial is stored among system in advance, therefore can observe die trial with respect to the relation of the lower limb line of force in the process of test die trial, simultaneously the flexing knee joint can be observed and implement femur after operation, the spatial relationship of tibia and knee joint pad is for assessment in art provides better three-dimensional assessment.
In the present embodiment, the real-time position information of described Template is the real-time three-dimensional solid space shape information of Template.
In the present embodiment, described sender unit 4 is infrared signal discharger or electromagnetic signal emitting device, sends REAL TIME INFRARED THERMAL IMAGE or electromagnetic signal.
In the present embodiment, described data processing equipment also is used for skeleton positional information corresponding to the calculated signals of described signal receiving device reception.Be specially, be combined into a rigid body because of die trial and bone bed in signal processing, therefore can adopt die trial to calculate capital center, the knee joint center calculates the ankle joint center simultaneously.
As shown in Figure 4, use the system of the present embodiment to carry out a kind ofly measuring kneed kinematic method comprise in the artificial knee joint operation technique, before finally laying prosthese:
At first carry out the processing of patient's knee joint bone bed by operation; When practical operation, the processing of knee joint bone bed adopts tradition or navigation apparatus to operate, and tibial plateau and distal femur all are perpendicular to mechanical axis and carry out osteotomy, and then the femur side adopts corresponding apparatus to carry out the processing on the front face of femur, rear and inclined-plane;
Then will be placed in the knee-joint prosthesis die trial of sender unit 4 on the bone bed of having handled well; Be specially and lay respectively digitalized navigation femoral prosthesis die trial 1 and tibial prosthesis die trial 2 on the femur of handling well and tibial bone bed, and the knee joint pad die trial 3 of selecting respective thickness according to the knee joint soft tissue tension, then carry out knee joint and reset;
Then send corresponding framing signal by the infrared or electromagnetic signal emitting device 4 in die trial;
Signal receiving device receives the signal that described sender unit 4 sends and carries out signal processing by data processing equipment, the signal that receives is changed into the three-dimensional space shape information of corresponding die trial, and the spatial relationship information during along with the knee joint flexion and extension between each die trial;
At last above-mentioned information is presented at intuitively in display device for doctor's reference.
System of the present invention can provide the die trial positional information in the test before laying prosthese in real time, facilitates the doctor to select more sizeable prosthese to lay, and in better art, assessment provides information more accurately for the doctor obtains simultaneously.
Above embodiment only is used for explanation the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (9)
1. articular prosthesis navigation die trial system, is characterized in that, comprising:
Template is provided with sender unit, is used for being arranged on carrying out the prosthese test on the bone bed;
Signal receiving device is used for receiving the signal that the sender unit on described Template sends;
Data processing equipment is used for the signal that described signal receiving device receives is processed, and obtains the real-time position information of described Template.
2. articular prosthesis as claimed in claim 1 navigation die trial system, is characterized in that, also comprises display device, and the real-time position information that is used for Template that described data processing equipment is obtained shows.
3. articular prosthesis as claimed in claim 1 navigation die trial system, is characterized in that, described Template is the knee-joint prosthesis die trial, comprises the knee joint pad die trial of femoral prosthesis die trial, tibial prosthesis die trial and some different-thickness.
4. as described in claim 1 or 3 articular prosthesis navigation die trial system, is characterized in that, each Template is provided with at least three sender units.
5. articular prosthesis as claimed in claim 4 navigation die trial system, is characterized in that the not coplanar setting of at least three sender units on described each Template.
6. articular prosthesis as claimed in claim 2 navigation die trial system, is characterized in that, also comprises storage device, is used for the shape information of storing described Template.
7. articular prosthesis as claimed in claim 6 navigation die trial system, is characterized in that, the real-time position information of described Template is the real-time three-dimensional solid space shape information of Template.
8. articular prosthesis as claimed in claim 1 navigation die trial system, is characterized in that, described sender unit comprises one or more in infrared signal discharger, electromagnetic signal emitting device.
9. articular prosthesis as claimed in claim 1 navigation die trial system, is characterized in that, described data processing equipment also is used for the corresponding skeleton positional information of calculated signals that receives according to described signal receiving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100194939A CN103083117A (en) | 2013-01-18 | 2013-01-18 | Joint prosthesis navigation model testing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100194939A CN103083117A (en) | 2013-01-18 | 2013-01-18 | Joint prosthesis navigation model testing system |
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| CN103083117A true CN103083117A (en) | 2013-05-08 |
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| CN2013100194939A Pending CN103083117A (en) | 2013-01-18 | 2013-01-18 | Joint prosthesis navigation model testing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107997856A (en) * | 2018-01-09 | 2018-05-08 | 北京易迈医疗科技有限公司 | Dislocate in hip replacement detecting system |
| CN109620348A (en) * | 2019-01-14 | 2019-04-16 | 艾瑞迈迪科技石家庄有限公司 | A kind of calibration of osteotomy guide block and tracking and system |
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| US20020133175A1 (en) * | 2001-02-27 | 2002-09-19 | Carson Christopher P. | Surgical navigation systems and processes for unicompartmental knee arthroplasty |
| US20070015999A1 (en) * | 2005-07-15 | 2007-01-18 | Heldreth Mark A | System and method for providing orthopaedic surgical information to a surgeon |
| CN101884542A (en) * | 2010-01-18 | 2010-11-17 | 清华大学 | Total knee replacement pressure balance measuring system |
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2013
- 2013-01-18 CN CN2013100194939A patent/CN103083117A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020133175A1 (en) * | 2001-02-27 | 2002-09-19 | Carson Christopher P. | Surgical navigation systems and processes for unicompartmental knee arthroplasty |
| US20070015999A1 (en) * | 2005-07-15 | 2007-01-18 | Heldreth Mark A | System and method for providing orthopaedic surgical information to a surgeon |
| CN101884542A (en) * | 2010-01-18 | 2010-11-17 | 清华大学 | Total knee replacement pressure balance measuring system |
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| 于建华: "计算机辅助手术系统在全膝关节置换中的应用", 《继续医学教育》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107997856A (en) * | 2018-01-09 | 2018-05-08 | 北京易迈医疗科技有限公司 | Dislocate in hip replacement detecting system |
| CN109620348A (en) * | 2019-01-14 | 2019-04-16 | 艾瑞迈迪科技石家庄有限公司 | A kind of calibration of osteotomy guide block and tracking and system |
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Application publication date: 20130508 |