CN105496610A - Hip dislocation preventive adjustable artificial hemipelvic prosthesis - Google Patents
Hip dislocation preventive adjustable artificial hemipelvic prosthesis Download PDFInfo
- Publication number
- CN105496610A CN105496610A CN201610047748.6A CN201610047748A CN105496610A CN 105496610 A CN105496610 A CN 105496610A CN 201610047748 A CN201610047748 A CN 201610047748A CN 105496610 A CN105496610 A CN 105496610A
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- China
- Prior art keywords
- pubis
- ilium
- fixture
- screw thread
- end connector
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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
- A61F2/32—Joints for the hip
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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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0008—Fixation appliances for connecting prostheses to the body
- A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes
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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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
Abstract
The invention relates to the technical field of prostheses, in particular to a hip dislocation preventive adjustable artificial hemipelvic prosthesis, comprising an iliac fixture, an acetabular prosthesis and a pubic fixture. The outer surface of one end of the iliac fixture is provided with an iliac fixture external thread; an iliac end connector extends from the outer surface of the acetabular prosthesis, and the outer surface of the iliac end connector is provided with an iliac end connector external thread; a thread orientation of the iliac fixture external thread is opposite to that of the iliac end connector external thread. The hip dislocation preventive adjustable artificial hemipelvic prosthesis has the advantages of improved activity of affected hip, prevention of postoperative hip joint dislocation, greater flexibility of the prosthesis in mounting and adjusting during surgery, and reduced surgical risk.
Description
Technical field
The present invention relates to artificial prosthesis technical field, specifically a kind of adjustable anti-hip dislocation artificial semi-pelvis prosthesis.
Background technology
The pelvic tumor involving acetabular bone often needs to carry out reconstruction after a resection, wherein customize semi-pelvis prosthesis reconstruction and can reach early stage strong fixing, pelvic ring is dissected seriality and is recovered good, the comparatively satisfaction of limbs length and profile, patient's early functional exercise and early loading requirement can be met, postoperative hip joint function is better, is reconstruction mode ideal after involving pelvis II district tumor resection.
But, cover and restrictive because postoperative semi-pelvis prosthesis hip joint lacks good soft tissue, only by self rigid structure, postoperative dislocation incidence rate is high, therefore need in art repeatedly to debug Acetabular abduction, top rake, operation process is loaded down with trivial details, and postoperative patient suffering limb mobility is subject to larger restriction, and dislocation occurs often still cannot avoid.
Application number is " 200810225315.0 ", Authorization Notice No. is " CN101390781B ", name is called that the patent of invention of " a kind of artificial semi-pelvis prosthesis " discloses a kind of artificial semi-pelvis prosthesis, it comprises for being fixed on holder on ilium and having the ball-shaped cup of manual acetabulum function, and it also comprises connector for connecting described holder and ball-shaped cup and screw tightening; Described connector is made up of two the tabular linking arms be fixed as one, and each tabular linking arm is provided with a bolt hole matched with described screw tightening, and the angle of the axis of described two bolt holes is 75 °-90 °; In two tabular linking arms, one of them tabular linking arm connects with not establishing bolt hole face in another tabular linking arm with the face being provided with bolt and passing through, and the angle between two faces is at least 90 °; Two tabular linking arms of described connector are connected with ball-shaped cup and holder by screw tightening respectively by bolt hole.The position of the described holder be fixed on ilium, the ball-shaped cup with manual acetabulum function and the connector three that connects described holder and ball-shaped cup is fixed, once implant, can not finely tune again.
Application number is " 201010572478.3 ", application publication number is " CN102008361A ", name is called that the patent of invention of " for recovering lumbosacral spine to the successional artificial semi-pelvis prosthesis of hip joint " discloses a kind of artificial semi-pelvis prosthesis, at least two metal bars comprising metal acetabular cup and be connected with described metal acetabular cup.During concrete use, first be implanted into pedicle nail the vertebral body of sacral or the next lumbar vertebra, then this artificial semi-pelvis prosthesis is implanted, regulate the curvature of metal bar to make metal acetabular cup close to the normal region of anatomy, then that end of the principle metal acetabular cup on metal bar is directly fixedly connected with by nut with pedicle nail groove.After reaffirming the position of artificial semi-pelvis prosthesis, the connection of whole prosthese can be completed.Metal bar described in this patent of invention, can be connected with nail pedicle fix without special construction in its one end away from metal acetabular cup after suitable length position is cut off.Once implant, can not finely tune again.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide to increase and suffer from hip mobility, prevention of postoperative dislocation of hip joint, prosthese installation and debugging semi-pelvis prosthesis more flexibly in art.
In order to achieve the above object, the invention provides a kind of adjustable anti-hip dislocation artificial semi-pelvis prosthesis, comprise ilium fixture, acetabular component and pubis fixture,
The outer surface of described ilium fixture one end is provided with ilium fixture external screw thread;
The outer surface of described acetabular component stretches out ilium end connector, and the outer surface of this ilium end connector is provided with ilium end connector external screw thread;
The externally threaded screw thread of described ilium fixture is towards towards the opposite with the externally threaded screw thread of ilium end connector;
Described semi-pelvis prosthesis also comprises the ilium adapter connecting this ilium fixture and ilium end connector, the inwall of this ilium adapter is provided with Tang thread, one end of described ilium adapter is threaded with ilium fixture, and the other end of described ilium adapter is threaded with ilium end connector;
One end of described pubis fixture is arranged on the outer surface of described acetabular component.The described externally threaded screw thread of ilium fixture is towards towards the opposite with the externally threaded screw thread of ilium end connector, namely described ilium fixture external screw thread is left hand thread, described ilium end connector external screw thread is right-handed thread, also can be described ilium fixture external screw thread be right-handed thread, described ilium end connector external screw thread be left hand thread.The inwall of described ilium adapter is provided with Tang thread, and this Tang thread is also alternately made up of left hand thread and right-handed thread overlap.Described ilium fixture and ilium end connector are taken over ilium respectively carrying out is threaded tightens.This connected mode replaces using groove card to join in the past or directly being installed ilium fixture and acetabular component by multiple screw, because Tang thread possesses screw thread that is left-handed and dextrorotation two rotation directions simultaneously, when external force such as being subject to impact, vibrations causes the generation that is threaded of a certain rotation direction to loosen, just be the tightening direction of the screw thread of another rotation direction, therefore, this connected mode is more tight, firm and stable.In addition, taken over by ilium and be connected with ilium fixture and ilium end connector respectively, can regulate the prosthese distance between ilium and acetabular component in art, thus regulate the position of hip joint center of rotation, make prosthese installation and debugging in art more flexible.
Preferably, described acetabular component comprises metal acetabular cup, polyethylene liner, ceramic femoral head and type femoral bone end prosthesis, wherein:
Described metal acetabular cup, polyethylene liner and ceramic femoral head carry out sheathed successively from outside to inside;
Described metal acetabular cup is hemisphere planar, and the inner surface of this metal acetabular cup covers ceramic layer;
Described polyethylene liner is hemisphere planar;
Described ceramic femoral head is spherical, and this ceramic femoral head installs described type femoral bone end prosthesis.The inner surface of described metal acetabular cup is high polish metal covering, this metal acetabular cup inner surface by be slightly press-fitted and negative pressure combined effect under cover ceramic layer, the ceramic layer of described metal acetabular cup and its inner surface is formed and combines closely.Described polyethylene liner is hemisphere planar, has two moving surfaces, and wherein the outer surface of polyethylene liner is flexibly connected with ceramic layer, inner surface is flexibly connected with ceramic femoral head.The mode that described polyethylene liner and metal acetabular cup and ceramic femoral head are connected makes described acetabular component have two dynamic structure, make the flexibility ratio of hip joint higher, and more existing acetabular component, the frictional interface of ceramic layer and polyethylene liner decreases the wearing and tearing of prosthese, avoid the generation that galling causes granule, the incidence rate of the postoperative diseases such as prosthetic loosening is reduced, extends the service life of prosthese.Described type femoral bone end prosthesis is used for squeezing in femoral bone cavitas medullaris.Described metal acetabulum is designed to the super-large diameter that internal diameter is greater than 60mm, ceramic-lined diameter and the external diameter of polyethylene liner all match with the internal diameter of metal acetabulum, this design can reduce debugging loaded down with trivial details in art, is conducive to increasing suffering from hip mobility, and prevention of postoperative dislocation of hip joint.
Preferably, described ilium fixture and pubis fixture are respectively equipped with scale strip.According to the selection that the gear of scale strip is applicable to the degree of depth that ilium fixture and ilium fixture screw in ilium adapter, to realize the adjustment of ilium and pubis part distance.
Preferably, described ilium end connector is made up of ilium end otic placode and ilium end gripper shoe, described ilium end otic placode and ilium end gripper shoe offer through hole respectively, and the first bolt bearing forms articulated structure through after the through hole on ilium end otic placode and ilium end gripper shoe.After obtaining truncated data in the preoperative by computer, may occur carrying out finely tuning with the situation meeting particular/special requirement to cutoff size in art temporarily, now can be adapted to the dimensional requirement of different patient by the angle between adjustment ilium end otic placode and ilium end gripper shoe.
Further, the outer surface of described pubis fixture one end is provided with pubis fixture external screw thread;
The outer surface of described acetabular component stretches out pubis end connector, and the outer surface of this pubis end connector is provided with pubis end connector external screw thread;
The externally threaded screw thread of described pubis fixture is towards towards the opposite with the externally threaded screw thread of pubis end connector;
Described semi-pelvis prosthesis also comprises the pubis adapter connecting this pubis fixture and pubis end connector, the inwall of this pubis adapter is provided with Tang thread, one end of described pubis adapter is threaded with pubis fixture, and the other end of described pubis adapter is threaded with pubis end connector.The externally threaded screw thread of described pubis fixture is towards towards the opposite with the externally threaded screw thread of pubis end connector, namely described pubis fixture external screw thread is left hand thread, described pubis end connector external screw thread is right-handed thread, also can be described pubis fixture external screw thread be right-handed thread, described pubis end connector external screw thread be left hand thread.The inwall of described pubis adapter is provided with Tang thread, and this Tang thread is also alternately made up of left hand thread and right-handed thread overlap.Described pubis fixture and pubis end connector are taken over pubis respectively carrying out is threaded tightens.Because Tang thread possesses screw thread that is left-handed and dextrorotation two rotation directions simultaneously, when external force such as being subject to impact, vibrations causes the generation that is threaded of a certain rotation direction to loosen, just be the tightening direction of the screw thread of another rotation direction, therefore, this connected mode is more tight, firm and stable.In addition, taken over by pubis and be connected with pubis fixture and pubis end connector respectively, can regulate the prosthese distance between pubis and acetabular component in art, thus regulate the position of hip joint center of rotation, make prosthese installation and debugging in art more flexible.
Preferably, described pubis fixture and pubis end connector are respectively equipped with scale strip.According to the selection that the gear of scale strip is applicable to the degree of depth that pubis fixture and pubis end connector screw in pubis adapter, to realize the adjustment of ilium and pubis part distance.
Preferably, described pubis end connector is made up of pubis end otic placode and pubis end gripper shoe, described pubis end otic placode and pubis end gripper shoe offer through hole respectively, and the second bolt bearing forms articulated structure through after the through hole on pubis end otic placode and pubis end gripper shoe.After obtaining truncated data in the preoperative by computer, may occur carrying out finely tuning with the situation meeting particular/special requirement to cutoff size in art temporarily, now can be adapted to the dimensional requirement of different patient by the angle between adjustment pubis end otic placode and pubis end gripper shoe.
The invention has the beneficial effects as follows, increase and suffer from hip mobility, prevention of postoperative dislocation of hip joint, in art, prosthese installation and debugging are more flexible, reduce operation risk.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of acetabular component in the present invention;
Fig. 3 is the structural representation of metal acetabular cup in the present invention;
Fig. 4 is the sectional view of ilium adapter in the present invention.
Wherein:
1-ilium fixture 11-ilium fixture external screw thread 2-acetabular component
21-metal acetabular cup 22-ceramic layer 23-polyethylene liner
24-pottery femoral head 25-type femoral bone end prosthesis 3-pubis fixture
31-pubis fixture external screw thread 4-ilium end connector 41-ilium end connector external screw thread
42-ilium end otic placode 43-ilium end gripper shoe 5-ilium is taken over
51-Tang thread 6-pubis end connector 61-pubis end connector external screw thread
62-pubis end otic placode 63-pubis end gripper shoe 7-pubis is taken over
71-Tang thread 8-first bolt bearing 9-second bolt bearing
100-scale strip
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1:
The adjustable anti-hip dislocation artificial semi-pelvis prosthesis of one as shown in Figure 1, 2, comprises ilium fixture 1, acetabular component 2 and pubis fixture 3,
The outer surface of described ilium fixture 1 one end is provided with ilium fixture external screw thread 11;
The outer surface of described acetabular component 2 stretches out ilium end connector 4, and the outer surface of this ilium end connector 4 is provided with ilium end connector external screw thread 41;
The screw thread of described ilium fixture external screw thread 11 is towards towards the opposite with the screw thread of ilium end connector external screw thread 41;
Described semi-pelvis prosthesis also comprises the ilium adapter 5 connecting this ilium fixture 1 and ilium end connector 4, as shown in Figure 2, the inwall of this ilium adapter 5 is provided with Tang thread 51, one end of described ilium adapter 5 is threaded with ilium fixture 1, and the other end of described ilium adapter 5 is threaded with ilium end connector 4;
One end of described pubis fixture 3 is arranged on the outer surface of described acetabular component 2.The screw thread of described ilium fixture external screw thread 11 is towards towards the opposite with the screw thread of ilium end connector external screw thread 41, namely described ilium fixture external screw thread 11 is left hand thread, described ilium end connector external screw thread 41 is right-handed thread, also can be described ilium fixture external screw thread 11 be right-handed thread, described ilium end connector external screw thread 41 be left hand thread.The inwall of described ilium adapter 5 is provided with Tang thread 51, and this Tang thread 51 is also alternately made up of left hand thread and right-handed thread overlap.Described ilium fixture 1 and ilium end connector 4 are carried out being threaded tightening with ilium adapter 5 respectively.This connected mode replaces using groove card to join in the past or directly being installed ilium fixture 4 and acetabular component 2 by multiple screw, because Tang thread possesses screw thread that is left-handed and dextrorotation two rotation directions simultaneously, when external force such as being subject to impact, vibrations causes the generation that is threaded of a certain rotation direction to loosen, just be the tightening direction of the screw thread of another rotation direction, therefore, this connected mode is more tight, firm and stable.In addition, taken over by ilium and be connected with ilium fixture 1 and ilium end connector 4 respectively, can regulate the prosthese distance between ilium and acetabular component 2 in art, thus regulate the position of hip joint center of rotation, make prosthese installation and debugging in art more flexible.
Embodiment 2:
A kind of adjustable anti-hip dislocation artificial semi-pelvis prosthesis, all the other are with embodiment 1, and as shown in Figure 3, described acetabular component 2 comprises metal acetabular cup 21, polyethylene liner 23, ceramic femoral head 24 and type femoral bone end prosthesis 25, wherein:
Described metal acetabular cup 21, polyethylene liner 23 and ceramic femoral head 24 carry out sheathed successively from outside to inside;
As shown in Figure 4, described metal acetabular cup 21 is in hemisphere planar, and the inner surface of this metal acetabular cup 21 covers ceramic layer 22;
Described polyethylene liner 23 is in hemisphere planar;
Described ceramic femoral head 24, in spherical, this ceramic femoral head 24 installs described type femoral bone end prosthesis 25.Metal acetabular cup 21 in acetabular component 2 as shown in Figure 2,3 and this acetabular component 2, the inner surface of described metal acetabular cup 21 is high polish metal covering, this metal acetabular cup 21 inner surface by be slightly press-fitted and negative pressure combined effect under cover ceramic layer 22, described metal acetabular cup 21 is formed with the ceramic layer 22 of its inner surface and combines closely.Described polyethylene liner 23, in hemisphere planar, has two moving surfaces, and wherein the outer surface of ethylene liner 23 is flexibly connected with ceramic layer 22, inner surface is flexibly connected with ceramic femoral head 24.The mode that described polyethylene liner and metal acetabular cup 21 and ceramic femoral head 24 are connected makes described acetabular component 2 have two dynamic structure, make the flexibility ratio of hip joint higher, and more existing acetabular component, ceramic layer 22 decreases the wearing and tearing of prosthese with the frictional interface of polyethylene liner 23, avoid the generation that galling causes granule, the incidence rate of the postoperative diseases such as prosthetic loosening is reduced, extends the service life of prosthese.Described type femoral bone end prosthesis 25 is for squeezing in femoral bone cavitas medullaris.Described metal acetabulum 21 is designed to the super-large diameter that internal diameter is greater than 60mm, the external diameter of ceramic-lined diameter and polyethylene liner 23 all matches with the internal diameter of metal acetabulum 21, this design can reduce debugging loaded down with trivial details in art, be conducive to increasing and suffer from hip mobility, and prevention of postoperative dislocation of hip joint.
Embodiment 3:
A kind of adjustable anti-hip dislocation artificial semi-pelvis prosthesis, all the other are with embodiment 2, and described ilium fixture 1 and pubis fixture 3 are respectively equipped with scale strip 100.According to the selection that the gear of scale strip 100 is applicable to the degree of depth that ilium fixture 1 and ilium fixture 4 screw in ilium adapter 5, to realize the adjustment of ilium and pubis part distance.
Described ilium end connector 4 is made up of ilium end otic placode 42 and ilium end gripper shoe 43, described ilium end otic placode 42 and ilium end gripper shoe 43 offer through hole respectively, and the first bolt bearing 8 forms articulated structure through after the through hole on ilium end otic placode 42 and ilium end gripper shoe 43.After obtaining truncated data in the preoperative by computer, may occur carrying out finely tuning with the situation meeting particular/special requirement to cutoff size in art temporarily, now can be adapted to the dimensional requirement of different patient by the angle between adjustment ilium end otic placode 43 and ilium end gripper shoe 44.
The outer surface of described pubis fixture 3 one end is provided with pubis fixture external screw thread 31;
The outer surface of described acetabular component 2 stretches out pubis end connector 6, and the outer surface of this pubis end connector 6 is provided with pubis end connector external screw thread 61;
The screw thread of described pubis fixture external screw thread 31 is towards towards the opposite with the screw thread of pubis end connector external screw thread 61;
Described semi-pelvis prosthesis also comprises the pubis adapter 7 connecting this pubis fixture 3 and pubis end connector 6, this pubis adapter 7 is identical with ilium adapter 5 structure, the inwall of described pubis adapter 7 is provided with Tang thread 71, one end of described pubis adapter 7 is threaded with pubis fixture 3, and the other end of described pubis adapter 7 is threaded with pubis end connector 6.The screw thread of described pubis fixture external screw thread 31 is towards towards the opposite with the screw thread of pubis end connector external screw thread 61, namely described pubis fixture external screw thread 31 is left hand thread, described pubis end connector external screw thread 61 is right-handed thread, also can be described pubis fixture external screw thread 31 be right-handed thread, described pubis end connector external screw thread 61 be left hand thread.The inwall of described pubis adapter 7 is provided with Tang thread 71, and this Tang thread 71 is also alternately made up of left hand thread and right-handed thread overlap.Described pubis fixture 3 and pubis end connector 6 are carried out being threaded tightening with pubis adapter 7 respectively.Because Tang thread possesses screw thread that is left-handed and dextrorotation two rotation directions simultaneously, when external force such as being subject to impact, vibrations causes the generation that is threaded of a certain rotation direction to loosen, just be the tightening direction of the screw thread of another rotation direction, therefore, this connected mode is more tight, firm and stable.In addition, be connected with pubis fixture 3 and pubis end connector 6 respectively by pubis adapter 7, can regulate the prosthese distance between pubis and acetabular component 2 in art, thus regulate the position of hip joint center of rotation, make prosthese installation and debugging in art more flexible.
Described pubis fixture 3 and pubis end connector 6 are respectively equipped with scale strip 100.According to the selection that the gear of scale strip 100 is applicable to the degree of depth that pubis fixture 3 and pubis end connector 6 screw in pubis adapter 7, to realize the adjustment of ilium and pubis part distance.
Described pubis end connector 6 is made up of pubis end otic placode 62 and pubis end gripper shoe 63, described pubis end otic placode 62 and pubis end gripper shoe 63 offer through hole respectively, and the second bolt bearing 9 forms articulated structure through after the through hole on pubis end otic placode 62 and pubis end gripper shoe 63.After obtaining truncated data in the preoperative by computer, may occur carrying out finely tuning with the situation meeting particular/special requirement to cutoff size in art temporarily, now can be adapted to the dimensional requirement of different patient by the angle between adjustment pubis end otic placode 63 and pubis end gripper shoe 64.
Below the preferred embodiment of the invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art can also make all equivalent modification or replacement under the prerequisite without prejudice to the invention spirit, and these equivalent modifications or replacement are all included in the application's claim limited range.
Claims (7)
1. an adjustable anti-hip dislocation artificial semi-pelvis prosthesis, comprises ilium fixture (1), acetabular component (2) and pubis fixture (3), it is characterized in that,
The outer surface of described ilium fixture (1) one end is provided with ilium fixture external screw thread (11);
The outer surface of described acetabular component (2) stretches out ilium end connector (4), and the outer surface of this ilium end connector (4) is provided with ilium end connector external screw thread (41);
The screw thread of described ilium fixture external screw thread (11) is towards towards the opposite with the screw thread of ilium end connector external screw thread (41);
Described semi-pelvis prosthesis also comprises ilium adapter (5) connecting this ilium fixture (1) and ilium end connector (4), the inwall of this ilium adapter (5) is provided with Tang thread (51), one end of described ilium adapter (5) is threaded with ilium fixture (1), and the other end of described ilium adapter (5) is threaded with ilium end connector (4);
One end of described pubis fixture (3) is arranged on the outer surface of described acetabular component (2).
2. adjustable anti-hip dislocation artificial semi-pelvis prosthesis according to claim 1, it is characterized in that, described acetabular component (2) comprises metal acetabular cup (21), polyethylene liner (23), ceramic femoral head (24) and type femoral bone end prosthesis (25), wherein:
Described metal acetabular cup (21), polyethylene liner (23) and ceramic femoral head (24) carry out sheathed successively from outside to inside;
Described metal acetabular cup (21) is in hemisphere planar, and the inner surface of this metal acetabular cup (21) covers ceramic layer (22);
Described polyethylene liner (23) is in hemisphere planar;
Described ceramic femoral head (24) is in spherical, and this ceramic femoral head (24) is upper installs described type femoral bone end prosthesis (25).
3. adjustable anti-hip dislocation artificial semi-pelvis prosthesis according to claim 1, is characterized in that, described ilium fixture (1) and pubis fixture (3) are respectively equipped with scale strip (100).
4. adjustable anti-hip dislocation artificial semi-pelvis prosthesis according to claim 1, it is characterized in that, described ilium end connector (4) is made up of ilium end otic placode (42) and ilium end gripper shoe (43), described ilium end otic placode (42) and ilium end gripper shoe (43) offer through hole respectively, and the first bolt bearing (8) forms articulated structure through after the through hole on ilium end otic placode (42) and ilium end gripper shoe (43).
5. adjustable anti-hip dislocation artificial semi-pelvis prosthesis according to claim 1, is characterized in that, the outer surface of described pubis fixture (3) one end is provided with pubis fixture external screw thread (31);
The outer surface of described acetabular component (2) stretches out pubis end connector (6), and the outer surface of this pubis end connector (6) is provided with pubis end connector external screw thread (61);
The screw thread of described pubis fixture external screw thread (31) is towards towards the opposite with the screw thread of pubis end connector external screw thread (61);
Described semi-pelvis prosthesis also comprises pubis adapter (7) connecting this pubis fixture (3) and pubis end connector (6), the inwall of this pubis adapter (7) is provided with Tang thread (71), one end of described pubis adapter (7) is threaded with pubis fixture (3), and the other end of described pubis adapter (7) is threaded with pubis end connector (6).
6. adjustable anti-hip dislocation artificial semi-pelvis prosthesis according to claim 5, is characterized in that, described ilium end connector (4) and pubis end connector (6) are respectively equipped with scale strip (100).
7. adjustable anti-hip dislocation artificial semi-pelvis prosthesis according to claim 5, it is characterized in that, described pubis end connector (6) is made up of pubis end otic placode (62) and pubis end gripper shoe (63), described pubis end otic placode (62) and pubis end gripper shoe (63) offer through hole respectively, and the second bolt bearing (9) forms articulated structure through after the through hole on pubis end otic placode (62) and pubis end gripper shoe (63).
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| CN201610047748.6A CN105496610B (en) | 2016-01-25 | 2016-01-25 | A kind of adjustable anti-hip dislocation artificial semi-pelvis prosthesis |
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| CN201610047748.6A CN105496610B (en) | 2016-01-25 | 2016-01-25 | A kind of adjustable anti-hip dislocation artificial semi-pelvis prosthesis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106109061A (en) * | 2016-08-05 | 2016-11-16 | 北京爱康宜诚医疗器材有限公司 | Femoral stem |
| CN109316267A (en) * | 2018-12-12 | 2019-02-12 | 北京四正医疗器械有限责任公司 | A kind of hip replacement surgery femoral head examination film tool |
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| CN205494085U (en) * | 2016-01-25 | 2016-08-24 | 中国人民解放军第二军医大学 | Artificial semi -pelvis prosthesis |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106109061A (en) * | 2016-08-05 | 2016-11-16 | 北京爱康宜诚医疗器材有限公司 | Femoral stem |
| CN109316267A (en) * | 2018-12-12 | 2019-02-12 | 北京四正医疗器械有限责任公司 | A kind of hip replacement surgery femoral head examination film tool |
| CN109316267B (en) * | 2018-12-12 | 2024-02-02 | 陕西四正医疗器械有限责任公司 | Femoral head membrane testing tool for hip joint replacement operation |
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| Publication number | Publication date |
|---|---|
| CN105496610B (en) | 2018-02-02 |
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