CN204890258U - Rebuild acetabular cup false body - Google Patents
Rebuild acetabular cup false body Download PDFInfo
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- CN204890258U CN204890258U CN201520685772.3U CN201520685772U CN204890258U CN 204890258 U CN204890258 U CN 204890258U CN 201520685772 U CN201520685772 U CN 201520685772U CN 204890258 U CN204890258 U CN 204890258U
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- mortar
- filling block
- acetabular cup
- bone
- cup prosthesis
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Abstract
The utility model provides a rebuild acetabular cup false body, belongs to medical instrument class technical field. Including acetabular cup false body main part, it still includes filling block at the bottom of the mortar is along filling block, mortar its characterized in that. One of structure the mortar accords with the acetabular bone edge along its shape of filling block and dissects the form. One of structure it is that it comprises last plane that becomes crescent and the wall that becomes spherical that the mortar accords with acetabular bone edge dissection form along its shape of filling block, and hollowed out design is to spherical's wall, and the plane system of going up has the screw of fixing at acetabular bone bone bed. The utility model provides an it can replace or reduce in the operation, and dissolve or the factors such as false body, bone cement of taking out lead to rebuilding of the defective autologous bone acetabular cup of bone because of bone around the false body to reduce the hip joint and rebuild the degree of difficulty of operation, shortened time that the operation was rebuild to the hip joint, need not to choose for use the autologous spongy bone to fill the defective bone acetabular cup of bone to the patient, reduced consequently and wound and the misery brought, the not hard up risk of false body has also been reduced.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to one and overhauls acetabular cup prosthesis.
Background technology
Along with the increase of first replacement of total hip, the patient carrying out overhaul technology is needed also to increase year by year.Hip revision operation occurs because the dissolving of Periprosthetic bone, the factor such as prosthese, bone cement of taking out cause Cranial defect often, and the problem of Acetabular reconstruction.The patient of acetabular component failure is after removing bone cement and granulation fibrous tissue, and acetabular bone bed often becomes that spongy bone is little, Cranial defect is more and the acetabular bone of the expansion of periphery osteosclerosis.As again applied bone cement, its fixed effect is poor, loosens rate high, and easily causes second time damage to bone bed.Therefore, to most of case first fixing stability recovering acetabular bone, and then twice replaced operation is carried out.In traditional operation, for the patient that Cranial defect is serious, fill up Cranial defect and have challenge to operative doctor, if select autologous spongiosa bone to fill up, usual bone grafting amount can be not enough, meanwhile, takes from body bone and bring huge wound and misery to patient.If select allograph bone to fill up defect, in human body, there is certain rejection, this adds increased allograph bone and absorbed the risk finally causing prosthetic loosening.And existing acetabular cup prosthesis is only applicable in neo-implanted acetabular cup or neo-implanted defectiveness acetabular cup.The former is as publication number: the technical scheme of CN103096842A " acetabular cup prosthesis ", the latter is as the technical scheme of notification number CN101018516 " unitary acetabular cup prosthesis with extension for defectiveness acetabular bone ", and " acetabular cup prosthesis " required when above-mentioned technical scheme is not all suitable for hip revision operation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided one to overhaul acetabular cup prosthesis, it can substitute or reduce because the dissolving of Periprosthetic bone or the factor such as prosthese, bone cement of taking out cause overhauling of the autologous bone acetabular cup of Cranial defect in operation.
Above-mentioned order goal of the invention is realized by following design:
One overhauls acetabular cup prosthesis, comprises acetabular cup prosthesis main body, and its main points are that it also comprises filling block at the bottom of mortar edge filling block, mortar.
As preferably, described its shape of mortar edge filling block meets acetabular bone edge anatomic form, namely according to acetabular bone edge anatomic form, is provided with more than one difform mortar edge filling blocks.
As preferably, it is it by becoming meniscate upper plane and becoming the wall of spheric and form that described its shape of mortar edge filling block meets acetabular bone edge anatomic form, and the wall of spheric does hollow out design, and upper plane is shaped with the screw be fixed on acetabular bone bed.
As preferably, filling block profile at the bottom of described mortar is circular or oval.
As preferably, at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar, filling block is metal trabecular bone structure material.
As preferably, each parts of filling block at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar can
Join and use or be used alone.
As preferably, filling block at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar has that more than one are large
Small dimension, with the needs of satisfied difference operation.
The beneficial effect that this practicality is new: it can substitute or reduce because the dissolving of Periprosthetic bone or the factor such as prosthese, bone cement of taking out cause overhauling of the autologous bone acetabular cup of Cranial defect in operation, thus decrease the difficulty of hip revision operation, shorten the time of hip revision operation; To patient without the need to selecting autologous spongiosa bone to fill up the bone acetabular cup of Cranial defect, decrease the therefore wound brought and misery; Decrease the risk because of the prosthetic loosening selecting allograph bone to bring to the bone acetabular cup filling up Cranial defect.
Accompanying drawing explanation
Fig. 1: the front view of acetabular cup prosthesis main body
The top view of Fig. 2: Fig. 1
Fig. 3: the front view of mortar edge filling block
The top view of Fig. 4: Fig. 3
Fig. 5: the axonometric chart of mortar edge filling block
Fig. 6: the front view of filling block at the bottom of mortar
A-A sectional view of Fig. 7: Fig. 6
Fig. 8: cancellous bone screw front view
Fig. 9: the acetabular bone schematic diagram that pelvis occurs pathological changes
Figure 10: the schematic diagram of the pelvis acetabular bone of this utility model load map 9
In Fig. 1-10: 1-acetabular cup prosthesis main body, 11-screw, 2-mortar edge filling block, the upper plane of 21-, 22-wall, 23-screw, 24-hollow-out slot bore, filling block at the bottom of 3-mortar, 4-pelvis, 5-mortar edge Cranial defect position, Cranial defect position at the bottom of 6-mortar, 7-cancellous bone screw.
Detailed description of the invention
Below in conjunction with the embodiment represented by Fig. 1-10, the utility model will be further described, but embodiment of the present utility model is not limited thereto.
It comprises acetabular cup prosthesis main body 1, and acetabular cup prosthesis main body 1 is shaped with and is fixed on screw 11. in pelvis 4 acetabular bone it also comprises filling block 3 at the bottom of mortar edge filling block 2, mortar; Described its shape of mortar edge filling block 2 meets acetabular bone edge anatomic form; It is it by becoming meniscate upper plane 21 and becoming the wall 22 of spheric and form that described its shape of mortar edge filling block 2 meets acetabular bone edge anatomic form, and the wall 22 of spheric does hollow out design, and upper plane 21 is shaped with the screw 23 be fixed on acetabular bone bed; Filling block 3 profile at the bottom of described mortar is circular; At the bottom of described acetabular cup prosthesis main body 1, mortar edge filling block 2, mortar, filling block 3 is metal trabecular bone structure material; The each parts match of filling block 3 at the bottom of described acetabular cup prosthesis main body 1, mortar edge filling block 2, mortar uses; At the bottom of described acetabular cup prosthesis main body 1, mortar edge filling block 2, mortar, filling block 3 respectively has two kinds of size specifications: two kinds of concrete sizes of size specification of acetabular cup prosthesis main body 1: size specification one size: acetabular cup prosthesis main body 1 outside diameter is 50MM, and height is 30MM; Size specification two size: acetabular cup prosthesis main body 1 outside diameter is 60MM, height is 40MM.Two kinds of concrete sizes of size specification of mortar edge filling block 2: size specification one size: on it, plane 21 is long is 50MM, and wide is 30MM, and its wall 22 height is 30MM; Size specification two size: on it, plane 21 is long is 60MM, and wide is 40MM, and its wall 22 height is 40MM.Two kinds of concrete sizes of size specification of filling block 3 at the bottom of mortar: size specification one size: diameter is 20MM, thick is 10MM; Size specification two size: diameter is 30MM, thick is 15MM.
Above-described embodiment using and operating as follows in operation: first, preoperative by carefully assessing any acetabular bone defect of the acetabular bone through instrument and equipment inspection of pelvis 4, the position of record Cranial defect and scope, then type and the size specification of required acetabular cup prosthesis main body 1 is determined, and the need of filling block 3 at the bottom of mortar edge filling block 2, mortar, as determined, at the bottom of acetabular cup prosthesis main body 1, mortar edge filling block 2, mortar, filling block 3 need mate use, then determine filling block 3 type and size specification at the bottom of mortar edge filling block 2, mortar further.And the concrete implementation step of operation is as follows:
1) doctor is by using the surface of hemispherical or any acetabular bone defect of spherical reamer for hip arthroplasty,acetabulum polishing pelvis 4 acetabular bone, stably to implant and to squeeze into acetabular cup prosthesis main body 1, it is hereby noted that mortar edge Cranial defect position 5 should reduce the removal of extra sclerotin as much as possible.
2) observe Cranial defect position 6 at the bottom of mortar, determine whether further to need filling block 3 at the bottom of acetabular implant.If desired, then whether need to adjust to filling block 3 type and size specification at the bottom of the former mortar determined and do last determination.Then filling block at the bottom of mortar 3 is placed in Cranial defect position 6 at the bottom of mortar, then graininess autogenous bone graft is covered on filling block 3 at the bottom of mortar and to compress graft.
3) acetabular cup prosthesis main body die trial (shape is identical with acetabular cup prosthesis main body 1 with size specification) is used to make correct combination and location to mortar edge filling block 2, namely selected shape and size specification most suitable mortar edge filling block 2, reached the maximal cover of mortar edge filling block 2 pairs of acetabular cup prosthesis main bodys 1.
4) mortar edge filling block 2 is placed on pelvis 4 limbus of acetabulum bone bed, holes with Medical bit on bone as required, be fixed with more than two pieces or two pieces cancellous bone screws 7; After installing, with the die trial of acetabular cup prosthesis main body determine further acetabular cup prosthesis main body 1 shape and size specification whether suitable.
5) by the hollow-out slot bore 24 of autogenous particulate bone graft acetabular implant edge filling block 2.
6) after completing above step, acetabular cup prosthesis main body 1 is loaded in pelvis 4 acetabular bone, plane on it is mated with the meniscate upper plane of mortar edge filling block 2 one-tenth dock, and fix by cancellous bone screw 7 pairs of acetabular cup prosthesis main bodys 1, now should be noted that cancellous bone screw 7 can not get to filling block 2 at the bottom of mortar.
7) polyethylene mortar cup is arranged in acetabular cup prosthesis main body 1.
Claims (10)
1. overhaul an acetabular cup prosthesis, comprise acetabular cup prosthesis main body, it is characterized in that it also comprises filling block at the bottom of mortar edge filling block, mortar.
2. one according to claim 1 overhauls acetabular cup prosthesis, it is characterized in that described its shape of mortar edge filling block meets acetabular bone edge anatomic form.
3. one according to claim 2 overhauls acetabular cup prosthesis, it is characterized in that described its shape of mortar edge filling block to meet acetabular bone edge anatomic form be it by becoming meniscate upper plane and becoming the wall of spheric and form, the wall of spheric does hollow out design, and upper plane is shaped with the screw be fixed on acetabular bone bed.
4. one according to claim 1 overhauls acetabular cup prosthesis, it is characterized in that filling block profile at the bottom of described mortar is for circular or oval.
5. one according to claim 1 and 2 overhauls acetabular cup prosthesis, it is characterized in that at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar, filling block is metal trabecular bone structure material.
6. one according to claim 3 overhauls acetabular cup prosthesis, it is characterized in that at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar, filling block is metal trabecular bone structure material.
7. one according to claim 4 overhauls acetabular cup prosthesis, it is characterized in that at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar, filling block is metal trabecular bone structure material.
8. one according to claim 5 overhauls acetabular cup prosthesis, it is characterized in that at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar, filling block is metal trabecular bone structure material.
9. one overhauls acetabular cup prosthesis according to claim 1, it is characterized in that each parts of filling block at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar can mate and uses or be used alone.
10. one overhauls acetabular cup prosthesis according to claim 1, it is characterized in that at the bottom of described acetabular cup prosthesis main body, mortar edge filling block, mortar, filling block respectively has more than one size specifications, with the needs of satisfied difference operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685772.3U CN204890258U (en) | 2015-09-07 | 2015-09-07 | Rebuild acetabular cup false body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520685772.3U CN204890258U (en) | 2015-09-07 | 2015-09-07 | Rebuild acetabular cup false body |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175995A (en) * | 2016-08-17 | 2016-12-07 | 优适医疗科技（苏州）有限公司 | A kind of novel hip prosthesis |
| CN109771103A (en) * | 2019-03-05 | 2019-05-21 | 北京积水潭医院 | A kind of collar plate shape bone trabecula metal acetabulum reconstruction prosthese |
| CN111728739A (en) * | 2020-06-22 | 2020-10-02 | 北京市春立正达医疗器械股份有限公司 | Filling block for bone defect and method for manufacturing same |
| CN114948350A (en) * | 2022-04-26 | 2022-08-30 | 大连大学附属中山医院 | 3D printing integrated acetabulum reconstruction prosthesis system and preparation method thereof |
-
2015
- 2015-09-07 CN CN201520685772.3U patent/CN204890258U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175995A (en) * | 2016-08-17 | 2016-12-07 | 优适医疗科技（苏州）有限公司 | A kind of novel hip prosthesis |
| CN109771103A (en) * | 2019-03-05 | 2019-05-21 | 北京积水潭医院 | A kind of collar plate shape bone trabecula metal acetabulum reconstruction prosthese |
| CN111728739A (en) * | 2020-06-22 | 2020-10-02 | 北京市春立正达医疗器械股份有限公司 | Filling block for bone defect and method for manufacturing same |
| CN114948350A (en) * | 2022-04-26 | 2022-08-30 | 大连大学附属中山医院 | 3D printing integrated acetabulum reconstruction prosthesis system and preparation method thereof |
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