CN102885659A - Method and device for measuring coverage rate of acetabular cup prosthesis in hip replacement surgery in real time - Google Patents
Method and device for measuring coverage rate of acetabular cup prosthesis in hip replacement surgery in real time Download PDFInfo
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- CN102885659A CN102885659A CN2011102148885A CN201110214888A CN102885659A CN 102885659 A CN102885659 A CN 102885659A CN 2011102148885 A CN2011102148885 A CN 2011102148885A CN 201110214888 A CN201110214888 A CN 201110214888A CN 102885659 A CN102885659 A CN 102885659A
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- bone
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- acetabular
- mortar cup
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001356 surgical procedure Methods 0.000 title claims abstract description 14
- 238000011540 hip replacement Methods 0.000 title claims abstract description 11
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 53
- 239000004570 mortar (masonry) Substances 0.000 claims description 48
- 210000001624 hip Anatomy 0.000 claims description 17
- 238000011882 arthroplasty Methods 0.000 claims description 14
- 210000000588 acetabulum Anatomy 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims description 8
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract 2
- 230000007774 longterm Effects 0.000 description 5
- 230000004083 survival effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 201000008482 osteoarthritis Diseases 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011158 quantitative evaluation Methods 0.000 description 2
- 206010073767 Developmental hip dysplasia Diseases 0.000 description 1
- 208000007446 Hip Dislocation Diseases 0.000 description 1
- 208000007353 Hip Osteoarthritis Diseases 0.000 description 1
- 239000002639 bone cement Substances 0.000 description 1
- 238000010219 correlation analysis Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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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 for implanting artificial joints
- A61F2/4657—Measuring instruments used for implanting artificial joints
-
- 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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physical Education & Sports Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention provides a device for measuring the coverage rate of acetabular cup prosthesis in hip replacement surgery in real time. The device comprises a recording needle, a receiver and a controller, wherein the recording needle is used for drawing the outline of an acetabular edge bone or an acetabular internal defective outline bone and converting the locus of the outline into real-time signals (ultrasonic signals in a preferable embodiment); the receiver (an ultrasonic transducer in the preferable embodiment) is used for receiving the real-time signals; and the controller is used for calculating the spherical area of the acetabular cup prosthesis or an acetabular file encircled by the locus. The invention also provides a method for measuring the coverage rate of the acetabular cup prosthesis in the hip replacement surgery in real time. The method is characterized in that the outline of the acetabular edge bone or the acetabular internal defective outline bone is drawn by using the recording needle; and the receiver receives the real-time signals sent by the recording needle, and thus the area of the acetabular cup prosthesis or the acetabular file encircled by the position of the recording needle at each moment is calculated. The device and the method provide real-time data for assessment of acetabular defect in the surgery, assessment on acetabular cup stability and judgment on a surgical method in the surgery.
Description
Technical field
The present invention relates to method for real-time measurement and the device of mortar cup prosthesis bone coverage rate in a kind of hip replacement surgery.The present invention is for providing real time data to judging in the art of the assessment of the damaged assessment of acetabular bone, mortar cup stability and operation method in the art.
Background technology
Artificial total hip arthroplasty is the standard care means of coxarthrosis in latter stage at end, and effectively alleviating pain recovers walking function, is described as the highest bone surgery of 20th century cost performance.Middle Long-term is found the impact of the complication that is subject to postoperative service life (becoming flexible) of artificial joint.Wherein, mortar cup side prosthesis is loosening particularly common.There is certain dependency in the instant mortar cup bone coverage rate of loosening and postoperative of mortar cup prosthesis.The finite element analysis of Huskies is found that the lower general who has surrendered of mortar cup bone coverage rate causes the stress concentration at bone and prosthese interface, thereby may be caused the mortar cup loosening.In addition, it is that the cementless prosthese obtains one of the prerequisite of long-dated survival of being satisfied with that bone is grown into, thereby also requires the acetabular bone side that sufficient covering is provided.But in following two kinds of situations, mortar cup coverage rate Chang Wufa ensures.The first, hip dysplasia (DDH) is as the cause of disease of common Secondary cases osteoarthritis, and is particularly common in asian population.There is deformity of hip joint in various degree in DDH patient, and there is the local bone quantity not sufficient in the acetabular bone side, can't provide the mortar cup to cover fully, and the difficulty that acetabular bone stresses to build is larger.Accordingly, also more conventional replacement of total hip decline of prosthese long-term survival rate.The second, in the hip revision patient, hip exists various types of bones damaged, also will affect the service life of mortar cup.At present, for guaranteeing the long term survival of mortar cup prosthesis, researcheres are by measuring the iconography mortar cup coverage rate of pelvis plain film, and carry out correlation analysis with the loosening rate of the mortar cup in middle long term, draw 70% mortar cup coverage rate and be the marginal value that guarantees mortar cup long term survival under structure bone grafting prerequisite not.But there is open defect in two-dimensional measurement, marginal value for mortar cup coverage rate under the further clear and definite three-dimensional situation, need three-dimensional measurement instrument real-time in the art to come mortar cup coverage rate under the clear and definite three dimensions, combine with following up a case by regular visits to, clear and definite three-dimensional marginal value, and then can provide reliable evidence for bone grafting decision-making in the art.
Summary of the invention
In sum, realize in the operation real-time measurement to mortar cup prosthesis coverage rate will help very much in the Rhizoma Atractylodis Macrocephalae to the quantitative evaluation of the damaged quantitative evaluation of acetabular bone, mortar cup stability and for judge in the art of operation method (as the selection of the selection of selection, bone cement fixed pattern prosthese or the biological fixation type prosthese of granular pattern or structural type bone grafting, top reinforcing ring, etc.) data of quantification are provided.
In order to achieve the above object, the invention provides the real-time measurement apparatus of mortar cup prosthesis coverage rate in a kind of hip replacement surgery, this device comprises:
The recording needle 102 that is used for sketching the contours the profile of damaged profile bone in acetabular bone marginal bone or the acetabular bone and its locus is converted to live signal;
Be used for receiving this live signal and rebuilding the receptor 106 of its space coordinates;
Be used for calculating the Programmable Logic Controller 109 by the area of spherical surface of this track institute region;
And for the anchor clamps 104 (with reference to Fig. 1) that receptor, Programmable Logic Controller are fixed on mortar cup prosthesis handle or the acetabular bone tang.
In order to achieve the above object, the present invention also provides the method for real-time measurement of mortar cup prosthesis coverage rate in a kind of hip replacement surgery, and this measuring method is described below:
One live signal generating means 105 is installed on recording needle 102 shanks;
Use recording needle 102 syringe needles to sketch the contours of the profile of damaged profile bone in acetabular bone marginal bone or the acetabular bone in the Rhizoma Atractylodis Macrocephalae;
Receptor 106 is placed in respect on the fixing position of mortar cup prosthesis handle or reamer for hip arthroplasty,acetabulum 100, and the real-time signal that sends of the signal generation apparatus 105 on the receiving record pin shank;
Programmable Logic Controller 109 goes out by the recording needle syringe needle at each instantaneous locus institute region mortar cup prosthesis or the area of spherical surface of reamer for hip arthroplasty,acetabulum according to the calculated signals that receives.
Description of drawings
Fig. 1 is the position relationship schematic diagram between recording needle 102 among the present invention, signal generation apparatus 105, receptor 106 and mortar cup prosthesis handle or the reamer for hip arthroplasty,acetabulum 100;
Fig. 2 is the location diagram between 106 liang of probes of recording needle syringe needle 102 and receptor and mortar cup prosthesis or the reamer for hip arthroplasty,acetabulum sphere among the present invention.
The specific embodiment
One live signal generating means 105 is installed on recording needle 102 shanks.A kind of better embodiment of this generating means is that rigidity is installed at least two cylinders or sphere ultrasonic transducer on the recording needle axis.
Receptor 106 is fixed on mortar cup prosthesis handle or the acetabular bone tang 103 by anchor clamps 104, and edit in the preoperative its receiving transducer to the position of mortar cup prosthesis or reamer for hip arthroplasty,acetabulum 100 centre ofs sphere; The signal that signal generation apparatus 105 on receptor 106 real-time receiving record pin 102 shanks sends.A kind of better embodiment of this receptor 106 is the fixing cylinder in two mutual alignments or sphere ultrasonic transducer (probe 107,108).Receptor 106 is provided with the robot interface, makes the doctor can input before use the diameter of mortar cup.
Use recording needle 102 to sketch the contours damaged profile 101 in acetabular bone marginal bone or the acetabular bone in the Rhizoma Atractylodis Macrocephalae.Signal generation apparatus 105 on the recording needle 102 is triggered by a trigger, and a kind of better embodiment is pressure trigger, triggers when the profile of recording needle and acetabular bone marginal bone.The signal of signal generation apparatus 105 is received by receptor 106.The receptor Programmable Logic Controller 109 (with reference to Fig. 2) of connecting, this Programmable Logic Controller calculates respectively pop one's head in 108 distance L 2 of the distance L 1 of these instantaneous record pin 102 syringe needles and 107 of receptor probes and 102 syringe needles and receptor according to the signal that receives.A kind of better embodiment of this algorithm is ultrasonic signal flight time (time-of-flight, TOF) algorithm.Programmable Logic Controller 109 is then according to following three condition Simultaneous Equations:
(1) the recording needle syringe needle is above-mentioned measured value L1 in this instantaneous distance with receptor probe 107;
(2) the recording needle syringe needle is above-mentioned measured value L2 in this instantaneous distance with receptor probe 108;
(3) recording needle 102 syringe needles (coordinate that is the recording needle syringe needle should satisfy spherical equation all the time) on mortar cup prosthesis or reamer for hip arthroplasty,acetabulum sphere.
The solution of this Simultaneous Equations is the space coordinates of this instantaneous record pin syringe needle in given coordinate system.A kind of better embodiment of this coordinate system is: take the centre of sphere of mortar cup prosthesis or reamer for hip arthroplasty,acetabulum as initial point, the line that connects initial point and receptor two probe line mid points as the z axle, cross initial point and the straight line parallel with receptor two probe lines as the x axle, and the direction of z axle and x axle quadrature be the right-handed coordinate system of y axle.Spatial data after Programmable Logic Controller 109 also will convert is stored in the memorizer 110.
When damaged profile 101 tracks in the profile of acetabular bone marginal bone or the acetabular bone sketch the contours complete after, mention recording needle 102, trigger sends end signal.After receiving end signal, Programmable Logic Controller 109 extracts the spatial data of storage, according to the mortar cup diameter of input, calculate by the mortar cup prosthesis of each space coordinates institute region or the area of spherical surface A of reamer for hip arthroplasty,acetabulum with certain algorithm.A kind of better embodiment of this algorithm is dblquad.Programmable Logic Controller calculates the ratio a of this surface area and this mortar cup area of spherical surface then, and then 1-a is the bone coverage rate of this mortar cup.Programmable Logic Controller shows this coverage rate by man-machine interface.
The doctor can adjust according to this coverage rate position and the opening direction of mortar cup, and reuses said method and measurement device coverage rate until it is up to standard.The doctor carries out the operation of acetabular bone grinding or the installation of mortar cup prosthesis subsequently, and after finishing receptor and anchor clamps 104 is taken off from mortar cup prosthesis handle or acetabular bone tang 103.
The above only is better embodiment of the present invention, when not being used to limit scope of the invention process.All equalizations of doing according to claims of the present invention change and modify, and all belong to protection scope of the present invention.
Claims (4)
1. the device that mortar cup prosthesis bone coverage rate is measured in real time in the hip replacement surgery is characterized in that, this device comprises:
The recording needle that is used for sketching the contours the profile of damaged profile bone in acetabular bone marginal bone or the acetabular bone and its locus is converted to live signal;
The receptor that is used for the live signal of this locus of reception;
Be used for calculating the controller that is enclosed the area of spherical surface in mortar cup prosthesis or reamer for hip arthroplasty,acetabulum zone by this locus.
2. the method for real-time measurement of mortar cup prosthesis bone coverage rate in the hip replacement surgery is characterized in that, this measuring method comprises:
One live signal generating means is installed on the recording needle shank;
Use the recording needle syringe needle to sketch the contours of the profile of damaged profile bone in acetabular bone marginal bone or the acetabular bone in the Rhizoma Atractylodis Macrocephalae;
Receptor is placed in respect to mortar cup prosthesis handle or reamer for hip arthroplasty,acetabulum and files on the fixing position, and the signal of the signal generation apparatus transmission on the real-time receiving record pin shank;
Controller goes out by the recording needle syringe needle at each instantaneous locus institute region mortar cup prosthesis or the area of spherical surface of reamer for hip arthroplasty,acetabulum according to the calculated signals that receives.
3. the method for real-time measurement of mortar cup prosthesis bone coverage rate in the hip replacement surgery as claimed in claim 2 is characterized in that, receptor calculates respectively the distance L of this instantaneous record pin syringe needle between popping one's head in two receptors according to the signal that receives
1, L
2, above-mentioned distance measure and recording needle syringe needle this condition on mortar cup prosthesis or reamer for hip arthroplasty,acetabulum sphere according to recording needle syringe needle and receptor two probes calculates the space coordinates of this instantaneous record pin syringe needle in given coordinate system then.
4. the method for real-time measurement of mortar cup prosthesis bone coverage rate in the hip replacement surgery as claimed in claim 2, it is characterized in that, go out by the mortar cup prosthesis of each space coordinates institute region or the area of spherical surface of reamer for hip arthroplasty,acetabulum in each instantaneous spatial coordinates calculation according to the recording needle syringe needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102148885A CN102885659A (en) | 2011-07-21 | 2011-07-21 | Method and device for measuring coverage rate of acetabular cup prosthesis in hip replacement surgery in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102148885A CN102885659A (en) | 2011-07-21 | 2011-07-21 | Method and device for measuring coverage rate of acetabular cup prosthesis in hip replacement surgery in real time |
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| Publication Number | Publication Date |
|---|---|
| CN102885659A true CN102885659A (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102148885A Pending CN102885659A (en) | 2011-07-21 | 2011-07-21 | Method and device for measuring coverage rate of acetabular cup prosthesis in hip replacement surgery in real time |
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| CN (1) | CN102885659A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110522515A (en) * | 2019-09-04 | 2019-12-03 | 上海电气集团股份有限公司 | Determination method, system, electronic equipment and the storage medium of acetabular component coverage rate |
| CN111067670A (en) * | 2019-12-24 | 2020-04-28 | 北京爱康宜诚医疗器材有限公司 | Acetabular bone defect assessment method and device and electronic equipment |
| CN111568609A (en) * | 2020-05-25 | 2020-08-25 | 北京长木谷医疗科技有限公司 | Method and device for obtaining coverage rate of acetabular cup prosthesis |
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| US5007936A (en) * | 1988-02-18 | 1991-04-16 | Cemax, Inc. | Surgical method for hip joint replacement |
| US5122145A (en) * | 1990-11-09 | 1992-06-16 | Fishbane Bruce M | Measuring device for use in total hip replacement |
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| US20030229352A1 (en) * | 2002-06-10 | 2003-12-11 | Penenberg Brad L. | Apparatus for and method of providing a hip replacement |
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| JP4146696B2 (en) * | 2002-09-19 | 2008-09-10 | 京セラ株式会社 | Artificial hip joint range of motion measurement method |
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2011
- 2011-07-21 CN CN2011102148885A patent/CN102885659A/en active Pending
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| US5007936A (en) * | 1988-02-18 | 1991-04-16 | Cemax, Inc. | Surgical method for hip joint replacement |
| US5122145A (en) * | 1990-11-09 | 1992-06-16 | Fishbane Bruce M | Measuring device for use in total hip replacement |
| US6299647B1 (en) * | 1998-09-25 | 2001-10-09 | Biopro, Inc. | Snap-fitting, non-dislocating hip joint socket implant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110522515A (en) * | 2019-09-04 | 2019-12-03 | 上海电气集团股份有限公司 | Determination method, system, electronic equipment and the storage medium of acetabular component coverage rate |
| CN110522515B (en) * | 2019-09-04 | 2021-09-24 | 上海电气集团股份有限公司 | Method and system for determining coverage rate of acetabular prosthesis, electronic device and storage medium |
| CN111067670A (en) * | 2019-12-24 | 2020-04-28 | 北京爱康宜诚医疗器材有限公司 | Acetabular bone defect assessment method and device and electronic equipment |
| CN111568609A (en) * | 2020-05-25 | 2020-08-25 | 北京长木谷医疗科技有限公司 | Method and device for obtaining coverage rate of acetabular cup prosthesis |
| CN111568609B (en) * | 2020-05-25 | 2021-09-28 | 北京长木谷医疗科技有限公司 | Method and device for obtaining coverage rate of acetabular cup prosthesis |
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