CN107468385B - A kind of artificial hip joint replacing device - Google Patents
A kind of artificial hip joint replacing device Download PDFInfo
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- CN107468385B CN107468385B CN201710786483.6A CN201710786483A CN107468385B CN 107468385 B CN107468385 B CN 107468385B CN 201710786483 A CN201710786483 A CN 201710786483A CN 107468385 B CN107468385 B CN 107468385B
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- acetabular cup
- bar
- artificial hip
- flexible connector
- hip prosthesis
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- 229910000831 Steel Inorganic materials 0.000 claims 1
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- 210000000988 bone and bone Anatomy 0.000 abstract description 11
- 210000001624 hip Anatomy 0.000 description 24
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- 229910000967 As alloy Inorganic materials 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 101000911772 Homo sapiens Hsc70-interacting protein Proteins 0.000 description 1
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Classifications
-
- 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
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4607—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of hip femoral endoprostheses
-
- 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
-
- 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
- A61F2/4601—Special tools for implanting artificial joints for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- 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
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
-
- 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
- A61F2/28—Bones
- A61F2002/2825—Femur
-
- 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
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- 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
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00574—Coating or prosthesis-covering structure made of carbon, e.g. of pyrocarbon
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention mainly solves the technical problem of providing a kind of flexible adjustments, it is able to satisfy all directions activity need, the high artificial hip prosthesis of associated contact face wearability, and improve its implanting instrument, reduce operation wound, the artificial hip prosthesis include a femoral stem, femur bulb and flexible connector, the distal end of femoral stem is pluggable in femoral bone cavitas medullaris, the proximal end of femoral stem extends to upper side, angle is 110 °~140 ° between elongated end axis and femoral stem axis under natural conditions, the end of elongated end attenuates stepped suddenly, thin segment extends 6~10mm to upper side, for fixing flexible connector, the flexible connector other end is connected with femur bulb, femur bulb and flexible connector junction have the columnar protrusions of long 6~10mm, consolidating for flexible connector and femur bulb is realized by columnar protrusions Fixed connection.It is achieved in any adjustment of each angle of artificial hip prosthesis, especially top rake and collodiaphyseal angle are adjusted respectively in sagittal plain and Coronal.
Description
Technical field
The present invention relates to Endoprostheses field, especially a kind of artificial hip prosthesis' displacement apparatus.
Background technique
In recent years, with the application of Replacement of Hip Joint and universal, Osteoarthritis, rheumatoid arthritis, stock
The diseases such as bone aseptic necrosis, traumatic arthritis, congenital velopharyngeal insufficiency hypernasality are gradually effectively treated and improve, people
Work hip replacement surgery has become treatment hip joint disease curative effect the best way.Artificial hip joint used in the operation is false
Body includes femoral prosthesis and acetabular cup prosthesis, the wherein fastness and stability of acetabular cup prosthesis and femoral prosthesis and acetabular bone
The adaptability of cup and human body natural's skeletal structure is to influence the more crucial factor of artificial hip prosthesis' service life and safety.And
Use at present it is more designed for integral type or hinged design, but its modulability is still limited, is unable to satisfy human body natural's bone
The flexibility of bone and a variety of physiological requirements of human body, thus photo-therapy effect.
Since human hip function is complicated, especially with the mobility of multiple directions, and bear certain drawing,
The loads such as pressure, folding, in the wrong, so requiring the selection of material property very high.For example: hip joint is by ball and socket joint and glenoid group
At for connecting the glenoid of femoral head and pelvis.The metallic rod of usually connection femur is cochrome or titanium alloy material system
At the sphere for being inserted into the femur top of hip joint nest is then made of cochrome or purification alumina ceramic material, and hip closes
Saving nest itself is usually that ultra-high molecular weight polyethylene hemisphere is constituted, and can be implanted directly into pelvis.Clinical research shows based on superelevation point
Effective length of service of the joint prosthesis implantation human body of the materials such as sub- weight northylen is 10 ~ 15 years.As it can be seen that superhigh molecular weight polyethylene
The materials such as alkene have service life, are implanted into the danger that failure is equally faced after human body, in the long-term use process, subject compared with
It big load and does relatively reciprocating motion with hard materials such as alloy, ceramics, is easy to cause problems because of abrasion；What abrasion generated
Abrasive dust, which is built up and induces soft tissue, generates a series of undesirable biologicallies, loosens the artificial hip joint being fixed well, greatly
The service life of artificial hip prosthesis is shortened greatly, so that patient has to carry out revision procedure halfway mostly.
In addition, the operation of Micro trauma artificial hip joint replacing is also increasingly taken seriously with the development of Micro trauma surgery,
Need to complete the displacement to articular prosthesis in the relatively small notch (5~10cm), need doctor's experience abundant and
The improvement of surgical instrument is to obtain good surgical effect.Therefore to tool, more stringent requirements are proposed, it is desirable that can be achieved enough
Surgical field of view, reduce operating time, accurately position.
Therefore, the flexible modulation for improving artificial hip prosthesis makes it meet the movable demand of all directions, and reinforced phase
The wearability for closing contact surface, while improving implanting instrument, reduces operation wound, makes to be implanted into safer, and these problems are for medical matters
It is urgently to be resolved for personnel and patient.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of flexible adjustment, it is able to satisfy all directions activity need, correlation
The high artificial hip prosthesis of contact surface wearability, and improve its implanting instrument, reduce operation wound, makes to be implanted into safer.It should
Artificial hip prosthesis include a femoral stem, femur bulb and flexible connector, and the distal end of femoral stem is pluggable in femoral bone cavitas medullaris
Interior, the proximal end of femoral stem extends to upper side, under natural conditions between elongated end axis and femoral stem axis angle be 110 °~
140 °, the end of elongated end attenuates stepped suddenly, and thin segment extends 6~10mm to upper side, for fixing flexible connector,
Flexible connector one end is inserted into thin segment and at the step, and the flexible connector other end is connected with femur bulb, femoral ball
Head has the columnar protrusions of long 6~10mm with flexible connector junction, realizes flexible connector and femur by columnar protrusions
Bulb is fixedly connected.It is achieved in any adjustment of each angle of artificial hip prosthesis, especially in sagittal plain and Coronal
Top rake and collodiaphyseal angle are adjusted respectively.
Femur bulb further includes mutually matched orbicule and acetabular cup, and orbicule includes metallic matrix, outside metallic matrix
Face is equipped with carbon coating, which has the intensity and hardness of graphene, but more more wear resistant than graphene, and microstructure is lamellar
Mono-crystalline structures, spacing of lattice 0.21nm are keyed between the carbon atom of same lamella for sp3 orbital hybridization carbon, layer and layer it
Between carbon atom between for sp2 hydridization carbon be keyed, C content be 99~100%.Acetabular cup includes base polyethylene, polyethylene
Matrix is equipped with coating identical with orbicule metallic matrix with the one side of spherical mates；It is micro- that coating layer thickness is respectively less than 10
Rice, due to the special construction of the coating, not only meets its changing firmness requirements, but also having between orbicule and acetabular cup higher
Wearability.
Physiological bending degree needed for the femoral stem has insertion femoral bone cavitas medullaris proximally and distally has different cut
Face, proximal end is by the rounded gradually transition in remote section being closely ellipsoidal structure, distal end pyramidal structure in the form of sheets, so as to effective
Anti-rotation, and be easily inserted in femoral bone cavitas medullaris.
The flexible connector is spring, and the elastic metallic yarn arrangement for forming spring is close, passes through interference fit difference
It is fixedly connected with the femoral stem at both ends and femur bulb.
The flexible connector is tubular elastic metallic, by being interference fitted the femoral stem and femoral ball with both ends respectively
Head is fixedly connected.
Load-bearing capacity needed for the flexible connector has artificial hip prosthesis, and it is curved to be able to carry out any direction
Song, bending angle can deviate axial 20-40 degree.
The thin segment and femoral stem of the femoral stem elongated end be integrally formed by same material, the femur bulb with thereon
Columnar protrusions are also that same material is integrally formed, so that overall structure is simpler, durable, fabrication and installation are more convenient,
It is more stable after implantation.
The present invention also provides the displacement apparatus that foregoing artificial hip prosthesis are implanted into human body, displacement apparatus tools
There are control stick, guide extension bar, acetabular cup connector, sleeve and acetabular cup to tap bar, the proximal end of control stick, which has, to be fixedly connected
Handle, be distally connected with acetabular cup connector, be fixedly connected with a guide extension bar, the other end of guide extension bar below handle
Be provided with sleeve hole, sleeve is nested in sleeve hole, sleeve be used to be inserted into acetabular cup tap bar, guide extension bar have elasticity and
Supportive can carry out all directions bending, stretching and shortening, so that sleeve is adjusted as needed at a distance from acetabular cup connector,
And both making alignment in favor of installation, when installation, need to adjust the distance and angle of guide extension bar in advance, and acetabular cup is positioned
Bar is tapped using acetabular cup afterwards and strikes real fixation rapidly, is then removed acetabular cup and is tapped bar and displacement apparatus.
The guide extension bar is that elastic metallic material or PVC material are made, and the body of rod is hollow tubular structures, is in pleat
Corrugation laminated form is flexible to be conducive under external force, and it is indeformable in its natural state do not stretch, metal or PVC is presented
Inherent strength, so as to bear the weight and pressure that acetabular cup taps bar.
The acetabular cup taps bar and passes through sleeve, and one end is connected with acetabular cup connector, and the other end, which has, facilitates percussion
Shank, acetabular cup tap bar and are made for hard metal material, are hollow tubular structure, and thickness of pipe wall 0.5-2mm is described hard
Matter metal material can be aluminium alloy, titanium alloy, stainless steel, need to meet the features such as slim and graceful, durable.
The clamping of the far end activity of the acetabular cup connector and control stick, and external force adjustment phase can be borrowed in the appropriate range
To angle, angle automatic locking after adjusting can be adjusted again under external force.
Beneficial effects of the present invention:
Due to using flexible connector between femoral stem and femur bulb, and on orbicule and acetabular cup contact surface
Using high-wearing feature carbon coating, so that artificial hip prosthesis' flexible adjustment, being able to satisfy all directions activity need, and phase
It is high to close contact surface wearability, more meets the psychological need of hip region, and is secondary caused by can be avoided due to overhaul halfway
Operation risk；Meanwhile additionally providing a kind of artificial hip prosthesis' displacement apparatus with control stick and guide extension bar, energy
Enough reduce operation wound, makes to be implanted into safer.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of artificial hip prosthesis of the present invention；
Fig. 2 is the structural schematic diagram of femur bulb in a kind of artificial hip prosthesis of the present invention；
Fig. 3 is a kind of structural schematic diagram of artificial hip prosthesis' displacement apparatus of the present invention, is stretched with high resiliency guiding
Contracting bar；
The components in the drawings are labeled as follows: 1, femoral stem；2, femur bulb；3, flexible connector；4, femoral stem distal end；
5, femur handle proximal end；6, columnar protrusions；7, orbicule；8, acetabular cup；9, metallic matrix；10, coating；11, base polyethylene；
12, control stick；13, guide extension bar；14, acetabular cup connector；15, sleeve；16, acetabular cup taps bar；17, handle；18, handle
Portion.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment 1:
As shown in Figure 1, artificial hip prosthesis include a femoral stem 1, femur bulb 2 and flexible connector 3, femoral stem 1
Distal end 4 it is pluggable in femoral bone cavitas medullaris, the proximal end 5 of femoral stem extends to upper side, under natural conditions elongated end axis and stock
Angle is 110 °~140 ° between bone arbor line, and the end of elongated end attenuates stepped suddenly, thin segment extends 6 to upper side~
10mm, for fixing flexible connector 3,3 one end of flexible connector is inserted into thin segment and at the step, flexible connector 3
The other end is connected with femur bulb 2, and the columnar protrusions 6 of femur bulb and 3 junction of flexible connector with long 6~10mm lead to
It crosses columnar protrusions 6 and realizes being fixedly connected for flexible connector and femur bulb.It is achieved in each angle of artificial hip prosthesis
Any adjustment, is especially respectively adjusted top rake and collodiaphyseal angle in sagittal plain and Coronal.
Femur bulb 2 further includes mutually matched orbicule 7 and acetabular cup 8, as shown in Fig. 2, orbicule 7 includes Metal Substrate
Body 9, is equipped with carbon coating 10 outside metallic matrix 9, which has the intensity and hardness of graphene, but than graphene more resistant to
Mill, microstructure are lamellar mono-crystalline structures, and spacing of lattice 0.21nm is sp3 track between the carbon atom of same lamella
Hydridization carbon is keyed, and is keyed between carbon atom between layers for sp2 hydridization carbon, and C content is 99~100%.Acetabular cup
8 include base polyethylene 11, and base polyethylene is equipped with identical with orbicule metallic matrix with the one side of spherical mates
Coating 10；10 thickness of coating is respectively less than 10 microns, due to the special construction of the coating, not only meets its changing firmness requirements, also makes
Obtain wearability with higher between orbicule 7 and acetabular cup 8.
Physiological bending degree needed for the femoral stem 1 has insertion femoral bone cavitas medullaris, proximal end 5 and distal end 4 have different
Section, proximal end 5 is by the rounded gradually transition in remote section being closely ellipsoidal structure, 4 pyramidal structure in the form of sheets of distal end, so as to
Effective anti-rotation, and be easily inserted in femoral bone cavitas medullaris.
The flexible connector 3 is spring, and the elastic metallic yarn arrangement for forming spring is close, passes through interference fit difference
It is fixedly connected with the femoral stem 1 at both ends and femur bulb 2.
Load-bearing capacity needed for the flexible connector 3 has artificial hip prosthesis, and it is curved to be able to carry out any direction
Song, bending angle can deviate axial 20-40 degree.
The thin segment and femoral stem of 1 elongated end of femoral stem are integrally formed by same material, the femur bulb 2 with thereon
Columnar protrusions 6 be also same material it is integrally formed so that overall structure is simpler, durable, fabrication and installation are more square
Just, more stable after implantation.
Embodiment 2:
As shown in Figure 1, artificial hip prosthesis' major part structure of the invention is same as Example 1, unlike, this reality
Applying flexible connector 3 described in example is tubular elastic metallic, and hollow structure can save material again and can guarantee enough elasticity
It needs, and is fixedly connected respectively with the femoral stem 1 at both ends and femur bulb 2 by interference fit.In addition, the flexible connector 3
Can also have locking mechanism, 2-3 inside protrusions are being set close to end, and opposite in femoral stem 1 and femur bulb 2
2-3 inside grooves of link position setting answered, to be locked with the protrusions match on flexible connector 3.Flexible connector 3
It can also be fixedly connected by the connection types such as being clamped, welding.
Embodiment 3:
The present invention also provides the displacement apparatus that foregoing artificial hip prosthesis are implanted into human body, as shown in figure 3, should
There is displacement apparatus control stick 12, guide extension bar 13, acetabular cup connector 14, sleeve 15 and acetabular cup to tap bar 16, manipulation
The proximal end of bar 12 has the handle 17 being fixedly connected, and is distally connected with acetabular cup connector 14, is fixedly connected with one below handle and leads
To telescopic rod 13, the other end of guide extension bar is provided with sleeve 15, and sleeve is used to be inserted into acetabular cup and taps bar 16, guide extension
Bar 13 has certain elasticity and supportive, can carry out all directions bending, stretching and shortening, thus adjust as needed sleeve 15 with
Distance between acetabular cup connector 14, and both make alignment in favor of installation, when installation, need to adjust guide extension bar 13 in advance
Distance and angle, after acetabular cup is positioned using acetabular cup tap bar 16 strike real fixation rapidly, then remove acetabular cup tap
Bar 16 and entire displacement apparatus.
The guide extension bar 13 is that elastic metallic material or PVC material are made, and the body of rod is hollow tubular structures, is in
Accordion laminated form is flexible to be conducive under external force, and it is indeformable in its natural state do not stretch, metal or PVC is presented
Inherent strength, so as to bear acetabular cup tap bar 16 weight and pressure.
The acetabular cup taps bar 16 and passes through sleeve 15, and one end is connected with acetabular cup connector 14, and the other end has convenient
The shank 18 of percussion, acetabular cup tap bar 16 and are made for hard metal material, are hollow tubular structure, thickness of pipe wall 0.5-
2mm, the metal material can be aluminium alloy, titanium alloy, stainless steel etc., need to meet the features such as slim and graceful, durable.
The far end activity of the acetabular cup connector 14 and control stick 12 is clamped, and can borrow external force tune in the appropriate range
Whole relative angle, angle automatic locking after adjusting, can be adjusted again under external force.
The present invention between femoral stem and femur bulb due to using flexible connector 3, and in orbicule 7 and acetabular cup
High-wearing feature carbon coating 10 is used on 8 contact surfaces, so that artificial hip prosthesis' flexible adjustment, to be able to satisfy all directions living
Dynamic demand, and associated contact face wearability is high, more meets the psychological need of hip region, and can be avoided due to overhaul halfway
Caused by second operation risk, use is safer；Meanwhile additionally providing a kind of people with control stick 12 and guide extension bar 13
Work hip prosthesis displacement apparatus, can reduce operation wound, make to be implanted into safer.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure made by bright description or equivalent transformation are applied directly or indirectly in other relevant technical fields,
Similarly it is included within the scope of the present invention.
Claims (2)
1. a kind of artificial hip prosthesis' displacement apparatus, which has control stick, guide extension bar, acetabular cup connection
Device, sleeve and acetabular cup tap bar, and the proximal end of control stick has the handle being fixedly connected, is distally connected with acetabular cup connector,
A guide extension bar is fixedly connected with below handle, the other end of guide extension bar is provided with sleeve, and sleeve is used to be inserted into acetabular cup
Bar is tapped, guide extension bar has certain elasticity and supportive, all directions bending, stretching and shortening can be carried out, thus according to need
Adjust sleeve between acetabular cup connector at a distance from, and both make alignment in favor of installation, when installation need to adjust in advance leads
To the distance and angle of telescopic rod, bar is tapped using acetabular cup after acetabular cup is positioned and strikes real fixation rapidly, wherein is replaced
Artificial hip prosthesis include femoral stem, femur bulb and the flexible connector being connected with, and femur bulb includes mutual
There is high-strength abrasion-proof carbon coating on the contact surface of the orbicule and acetabular cup of cooperation, orbicule and acetabular cup；The guiding is stretched
Contracting bar is that elastic metallic material or PVC material are made, and the body of rod is hollow tubular structures, in accordion laminated form with outside
Power effect is lower be conducive to it is flexible, and it is indeformable in its natural state do not stretch, metal or the inherent strength of PVC is presented, so as to
Bear weight and pressure that acetabular cup taps bar；The acetabular cup taps bar and passes through sleeve, and one end is connected with acetabular cup connector,
The other end has the shank for facilitating percussion；The clamping of the far end activity of the acetabular cup connector and control stick, and can be in appropriate model
Interior borrow external force adjustment relative angle is enclosed, angle automatic locking after adjusting can be adjusted again under external force.
2. artificial hip prosthesis' displacement apparatus according to claim 1, it is hard metal material that the acetabular cup, which taps bar,
Material is made, and is in hollow tubular structure, thickness of pipe wall 0.5-2mm, the hard metal material can be aluminium alloy, titanium alloy, no
Become rusty steel.
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| CN201710786483.6A CN107468385B (en) | 2017-09-04 | 2017-09-04 | A kind of artificial hip joint replacing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110547899A (en) * | 2018-06-01 | 2019-12-10 | 何伟义 | artificial hip joint with micro dynamic function |
| CN110974495B (en) * | 2019-12-30 | 2021-11-30 | 邱恩铎 | Bone grafting device for orthopedics department |
| CN113081410B (en) * | 2021-04-06 | 2023-01-13 | 山东大学齐鲁医院(青岛) | Forward-pushing type hip joint resetting device |
| CN113413252B (en) * | 2021-07-16 | 2022-06-17 | 浙江大学 | Plastic universal type acetabulum accurate positioning operation guide plate |
| CN114028034A (en) * | 2021-11-10 | 2022-02-11 | 上海市第六人民医院 | An easy-to-install iliac wing filling block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6231611B1 (en) * | 1996-06-14 | 2001-05-15 | Raphael Mosseri | Total hip prosthesis for endo-articular implantation, and ancillary device therefor |
| CN201260708Y (en) * | 2007-09-11 | 2009-06-24 | 陈汉文 | Buffering type artificial hip joint |
| CN203885671U (en) * | 2014-04-25 | 2014-10-22 | 上海微创骨科医疗科技有限公司 | Direct insertion type guide device for hip replacement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9610092B2 (en) * | 2011-08-29 | 2017-04-04 | Microsoft Orthopedics Holdings Inc. | Precision hip replacement method |
| JP5127543B2 (en) * | 2008-04-09 | 2013-01-23 | 京セラメディカル株式会社 | Acetabular cup installation tool |
| CN205672061U (en) * | 2016-04-15 | 2016-11-09 | 南京医科大学第一附属医院 | A kind of intervertebral foramina guide device |
-
2017
- 2017-09-04 CN CN201710786483.6A patent/CN107468385B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6231611B1 (en) * | 1996-06-14 | 2001-05-15 | Raphael Mosseri | Total hip prosthesis for endo-articular implantation, and ancillary device therefor |
| CN201260708Y (en) * | 2007-09-11 | 2009-06-24 | 陈汉文 | Buffering type artificial hip joint |
| CN203885671U (en) * | 2014-04-25 | 2014-10-22 | 上海微创骨科医疗科技有限公司 | Direct insertion type guide device for hip replacement |
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