CN110368140A - Femoral implant - Google Patents
Femoral implant Download PDFInfo
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- CN110368140A CN110368140A CN201910718286.XA CN201910718286A CN110368140A CN 110368140 A CN110368140 A CN 110368140A CN 201910718286 A CN201910718286 A CN 201910718286A CN 110368140 A CN110368140 A CN 110368140A
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- Prior art keywords
- pin
- femoral implant
- femur
- porous structure
- implant according
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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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
-
- 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
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3611—Heads or epiphyseal parts of femur
Abstract
The present invention provides a kind of femoral implants, comprising: pin is capable of fixing in neck of femur；Coronal, is arranged in the first end of pin, and coronal can coat the end of neck of femur.Technical solution of the present invention efficiently solves patient in the prior art and needs to cut away femoral head implementation hip replacement, the problem larger to patient effect advanced stage.
Description
Technical field
The present invention relates to artificial joint prosthesis fields, in particular to a kind of femoral implant.
Background technique
Articular cartilage damage is a kind of relatively conventional disease of orthopaedics.In art of orthopedic surgery, due to originals such as disease, wounds
The arthritis caused by traumatic and degenerative cartilage tissue damage because caused by is all a problem in whole world medical field, due to
Cartilaginous tissue does not have blood supply, and source of nutrition moistens in periarticular synovia, is difficult to regenerate after damage.Traditional cartilage damage
Hurting treatment method has joint grinding forming art, drilling, micro fractures and arthroscope lavation art cannot be by the cartilage and cartilage of damage
Lower bone repair is at their original possessed normal institutional frameworks.Autograft curative effect is preferable, but limited for material；It is different
Body material source is relatively more, but may cause immunological rejection, and has pathophorous danger.Currently, utilizing group weaver
It is just in the laboratory research stage, temporarily without more effective treatment method that journey, which develops damaged tissue substitute,.
Femur is the most important bone of human body, and femoral head is even more important, and the walking upright of people, activity, labour depend on stock
The supporting role of bone.So femoral head is also to be easiest to injured position.After femoral head lesion, the fracture of serious person's sclerotin, bone
Girder disappears or most of disappearance, and many places large area cryptomere light transmission changes in femoral head, many places hardenability high density sclerotin change,
The serious collapse-deformation of femoral head, flat hypertrophy frequently result in hip arthralgia, and function of joint is limited, on foot the symptoms such as limping.Such as
Early stage without effectively being treated, late, clinically eventually cuts away femoral head, implements hip replacement surgery, therefore,
Early intervention prevents the high progression of disease from playing an important role for retaining femoral head.
Long-term clinical practice it was demonstrated that replacement of total hip (THA) for coxitis be undoubtedly it is a kind of effectively and
And durable treatment method, there is very good effect especially for elderly patients, 10 years survival rates of prosthese have been more than 90%.
However for compared with young patient, there is significantly long-term effect in especially less than 55 years old male patient, total hip joint
The deficiency of fruit --- higher early stage revision rate, 10 years prosthese survival rates are down to 80%, and postoperative 16 years are 33%.
Summary of the invention
The present invention is intended to provide a kind of femoral implant, needs to cut away femoral head reality advanced stage to solve patient in the prior art
Replacement of total hip is applied, the problem larger to patient effect.
To achieve the goals above, the present invention provides a kind of femoral implants, comprising: pin is capable of fixing in femur
In neck；Coronal, is arranged in the first end of pin, and coronal can coat the end of neck of femur.
Further, coronal includes porous structure layer and contact layer, and porous structure layer can connect with the end of neck of femur
Touching, contact layer are arranged in the outer surface of porous structure layer and can contact with acetabular bone or acetabular component.
Further, the medial surface of porous structure layer includes the cylinder and the conical surface being connected, first end of the conical surface from pin
It is arranged with being gradually expanded to second end, the side that the conical surface is relatively large in diameter is arranged in cylinder.
Further, contact layer is towards being provided with latticed groove on a side surface of acetabular bone or acetabular component.
Further, multiple flowing holes are provided on contact layer, multiple flowing holes are connected with the hole of porous structure layer.
Further, multiple flowing holes are arranged in the grid of latticed groove, alternatively, multiple flowing holes are arranged in grid
On the intersection point of shape groove.
Further, porous structure layer is made of metal material 3D printing, and the material of contact layer is polymer.
Further, the axis protrusion setting of contact layer towards pin forms flange, and flange setting is in neck of femur and porous
Between structure sheaf.
Further, pin is threaded through in femoral head, and femoral implant further includes fixed part, and fixed part setting is remote in pin
Second end from coronal.
Further, fixed part is nut, and nut is arranged on pin by helicitic texture.
Further, the second end that pin stretches out femoral head has been arranged radially multiple fixation holes along pin.
It applies the technical scheme of the present invention, pin is fixed in femoral head, and coronal is fixed on the end of pin, coronal
It is fixed by a pin on femoral head and is substituted femoral head surfaces cartilage that patient is damaged or lesion, effectively improves stock
The ambient stress of bone lesion region resists quick stress caused by diseased region and collapses, enables stock head swimmingly in acetabular bone
Rotation rebuilds function of joint, and then realizes the leg action in patient's daily life.Meanwhile the femoral implant of the present embodiment
Coronal femoral head surfaces are only substituted, remain the femur structure of more patients itself, reduce hand to a certain extent
Influence of the art to patient.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the embodiment of femoral implant according to the present invention；
Fig. 2 shows partial enlargement structural representations at the E of the femoral implant of Fig. 1；
Fig. 3 shows the schematic cross-sectional view of the coronal of the femoral implant of Fig. 1；
Fig. 4 A to Fig. 4 D shows four kinds of latticed groove examples on the coronal surface of Fig. 3 and the arragement construction of flowing hole
Schematic diagram；And
Fig. 5 to Fig. 7 shows the surgical procedure schematic diagram of the femoral implant of Fig. 1.
Wherein, the above drawings include the following reference numerals:
10, pin；11, fixation hole；20, coronal；21, porous structure layer；211, the conical surface；212, cylinder；22, it contacts
Layer；23, flange；24, flowing hole；25, latticed groove；30, fixed part；80, duct；90, femur；91, shaft of femur；92, stock
Bone neck；93, femoral head.
Specific embodiment
Total hip replacement in the prior art there is higher early stage revision rate in the patient lighter to the age,
The hip joint superficial substitution technology just having proposed before 50 years is with wound is small, postoperative mobility is good, can retain more femur
The unique advantages such as side seam amount are treated hip joint disease patient certain young and that movement is active by advocating again.Now, certain
Manufacturer is proposed respective hip implant.All these systems have Some features, comprising: (1) joint interface is by high-carbon
Cobalt-chromium alloy manufacture；(2) acetabular component none-cement is fixed；(3) femur side prosthesis cement reaction；(4) metal-metal hip
Articular surface exchange system.The outstanding problem of modern surface replacement prosthesis is that joint wear is serious, and early stage failure rate is high, is still
Total hip replacement.The application proposes improvement project to femur side implantation material regarding to the issue above.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the femur 90 of human body includes shaft of femur 91, neck of femur 92 and femoral head 93, femoral head 93 protrudes into hip
The swing that pivoting friction pair realizes leg is formed with acetabular bone in the acetabular bone in joint.The femoral implant of the present embodiment is intended to patient's hip
The early stage of arthropathy intervenes femoral head 93, carries out aliquot replacement to femoral head 93, prevents disease high progression, simultaneously
The femur as much as possible for retaining patient itself, reduces the injury to patient.As shown in Figure 1, the femoral implant of the present embodiment
It include: pin 10 and coronal 20, wherein pin 10 is capable of fixing in neck of femur 92, and pin 10 is arranged in coronal 20
First end, coronal 20 can coat the end of neck of femur 92 as the surface of femoral head 93.
Using the technical solution of the present embodiment, pin 10 is fixed in neck of femur 92, and coronal 20 is fixed on pin 10
End, coronal 20 is fixed on femoral head 93 by pin 10 and to substitute femoral head surfaces that patient is damaged or lesion soft
Bone effectively improves the ambient stress of femoral head lesion region, resists quick stress caused by diseased region and collapses, makes stock head 93
It can swimmingly be rotated in acetabular bone, rebuild function of joint, and then realize the leg action in patient's daily life.Meanwhile this
93 surface of femoral head is only substituted in the coronal 20 of the femoral implant of embodiment, remains the femur knot of more patients itself
Structure reduces the influence performed the operation to patient to a certain extent.
Moreover, the femoral implant of the present embodiment directly replaces the surface of the femoral head of patient itself, closes with full hip
Section displacement is compared, and the technical solution of the present embodiment does not need the inner lining structure in acetabular bone, protects postoperative femoral head diameter
Original size is stayed, so that realizing major diameter femoral head can be to avoid the advantage of dislocation.
Pin 10 is arranged along the axis of neck of femur 92 or with the axis of neck of femur 92 in low-angle, and the extension side of pin 10 is made
To roughly the same with neck of femur 92, be conducive to the fixation of coronal 20.
Preferably, as shown in Fig. 2, the coronal 20 of the present embodiment includes porous structure layer 21 and contact layer 22, porous knot
Structure layer 21 can be contacted with the end of neck of femur, contact layer 22 be arranged in the outer surface of porous structure layer 21 and can with acetabular bone or
Acetabular component contact.Contact layer 22 has good wear-resisting property, to replace Femoral cardlage surface to realize in acetabular bone
Smooth rotation.Porous structure layer 21 can simulate the porous structure of skeleton bone trabecula formation, realize similar support effect,
Has the function of excellent self healing function of Integrated implant and physiology sclerotin simultaneously.The sclerotin of femoral head can after being implanted into human body
It grows into the porous structure of porous structure layer 21, reinforces the structural strength of sclerotin and 21 contact surface of porous structure layer, make coronal
20 stable and firm are connected on patient femur's head 93.
In femoral implant in the present embodiment, porous structure layer 21 can be using biologic medicals materials such as ceramics, titaniums
It is made by 3D printing technique, pin 10 is fine and close solid construction, can provide enough structures for coronal 20
Support, the material of pin 10 is identical as porous structure layer 21, can be integrally formed and is made by 3D printing technique.Contact layer 22 uses
Polymerizable material (such as polyurethane, polyvinyl alcohol gel, polylactic acid) with good wear performance passes through the side such as thermoplastic, injection molding
Formula is molded over the surface of porous structure layer 21, and contact layer 22 made of polymerizable material highly reappears human femoral head surface cartilage
Structure, improve the life expectancy of prosthese.
Specifically, as shown in figure 3, the medial surface of the porous structure layer 21 of the present embodiment includes 212 He of cylinder being connected
The conical surface 211, the conical surface 211 are arranged with being gradually expanded from the first end of pin 10 to second end, and the setting of cylinder 212 is straight in the conical surface 211
The biggish side of diameter.Wherein, the taper of the conical surface 211 is about at 3~5 °, the depth of cylinder 212 be about 5~10mm formed it is heavy
Hole, the conical surface 211 are advantageously implemented being fixedly secured for porous structure layer 21 and femoral head bone, and the counterbore that cylinder 212 is formed can be with
Prevent porous structure layer 21 from being led to its loosening by edge force.
Further, as shown in Figures 2 and 3, axis protrusion setting shape of the contact layer 22 of the present embodiment towards pin 10
At flange 23, flange 23 can prevent contact layer between neck of femur 92 and porous structure layer 21 after the implantation of coronal 20
22 separate under ambient stress with porous structure layer 21.
In order to rotate coronal 20 can smooth in acetabular bone, as shown in Figure 4 A, contact layer 22 is towards acetabular bone or acetabular bone
Latticed groove 25 is provided on one side surface of prosthese.Latticed groove 25 is interweaved by a plurality of groove forms netted, joint cunning
Liquid can be stored in latticed groove 25, and with coronal 20 relative to the rotation of acetabular bone be coated in coronal 20 and acetabular bone it
Between contact surface on, play the role of lubrication.The concrete shape of latticed groove 25 can be such as the square mesh of Fig. 4 A, can also be with
Such as the hexagonal network of Fig. 4 B or Fig. 4 C, the diamond-mesh of acceptable such as Fig. 4 D.
Further, as shown in Figures 2 and 3, multiple flowing holes 24 are additionally provided on the contact layer 22 of the present embodiment, it is each
Flowing hole 24 is connected with the hole of porous structure layer 21.Flowing hole 24 realizes the company between femoral head bone and articular surface
It is logical, so that the joint fluid generated in sclerotin is added on articular surface, effectively avoid dry friction, reduces the abrasion of contact surface 22,
Extend the service life of femoral implant.Femoral head bone is connected to articular surface simultaneously can prevent femoral implant inner sealing
Dead space occurs, and the growth of bacterium is effectively reduced, and prevents infection and the generation of inflammation.
Specifically, multiple flowing holes 24 can be arranged in the grid of latticed groove 25 as shown in 4B in figure, can also be with
It is arranged on the intersection point of latticed groove 25 as shown in Fig. 4 A, 4C or 4D.Preferably, the aperture of the flowing hole 24 of the present embodiment exists
1mm。
As shown in Figure 1, the pin 10 of the present embodiment is threaded through in femoral head, femoral implant further includes fixed part 30, Gu
Determine portion 30 and second end of the pin 10 far from coronal 20 is set.In the femoral implant of the present embodiment, fixed part 30 is spiral shell
Cap, nut are arranged on pin 10 by helicitic texture to prevent 10 abjection femur 90 of shotpin nail.
As shown in Figure 1, the second end that the pin 10 of the present embodiment stretches out femoral head is multiple along being arranged radially for pin 10
Fixation hole 11.When fixed without using nut, fixation hole can be passed through by steel wire and is wrapped on femur and realizes femur implantation
The fixation of object.
In other embodiments not shown in the figure, pin can not also be pierced by femur, can by helicitic texture or its
He is directly anchored in femur structure.
As shown in Fig. 5 to Fig. 7, the femoral implant of the present embodiment can be broadly divided into three steps when performing the operation implantation:
The first step drills through duct 80 in patient femur 90；
Second step carries out the shape handles to patient femur's head 93, and the surface of prefabricated femoral head 93 is to adapt to porous structure layer
21 medial surface；
Pin 10 is penetrated duct 80 by third step, and coronal 20 is set on the good femoral head 93 of moulding and completes to sell
The fixation of nail 10.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
Pin is fixed in femoral head, and coronal is fixed on the end of pin, and coronal is fixed by a pin to femoral head
Femoral head surfaces cartilage that patient is damaged or lesion is gone up and substituted, the NOL ring of femoral head lesion region is effectively improved
Border is resisted quick stress caused by diseased region and is collapsed, so that stock head is swimmingly rotated in acetabular bone, rebuild function of joint, into
And realize the leg action in patient's daily life.Meanwhile femur is only substituted in the coronal of the femoral implant of the present embodiment
Head surface remains the femur structure of more patients itself, reduces the influence performed the operation to patient to a certain extent.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of femoral implant characterized by comprising
Pin (10), is capable of fixing in neck of femur；
Coronal (20), is arranged the first end in the pin (10), and the coronal (20) can coat the end of neck of femur.
2. femoral implant according to claim 1, which is characterized in that the coronal (20) includes porous structure layer
(21) it can be contacted with the end of the neck of femur with contact layer (22), the porous structure layer (21), the contact layer (22)
Outer surface in the porous structure layer (21) is set and can be contacted with acetabular bone or acetabular component.
3. femoral implant according to claim 2, which is characterized in that the medial surface of the porous structure layer (21) includes
The cylinder (212) and the conical surface (211) being connected, the conical surface (211) from the first end of the pin (10) to second end gradually
Expand ground setting, the cylinder (212) is arranged in the side that the conical surface (211) is relatively large in diameter.
4. femoral implant according to claim 2, which is characterized in that the contact layer (22) is towards the acetabular bone or hip
Latticed groove (25) are provided on one side surface of mortar prosthese.
5. femoral implant according to claim 4, which is characterized in that be provided with multiple overcurrents on the contact layer (22)
Hole (24), multiple flowing holes (24) are connected with the hole of the porous structure layer (21).
6. femoral implant according to claim 5, which is characterized in that multiple flowing holes (24) are arranged in the net
In the grid of trellis groove (25), alternatively, multiple flowing holes (24) are arranged on the intersection point of the latticed groove (25).
7. femoral implant according to claim 2, which is characterized in that the porous structure layer (21) is by metal material 3D
Printing is made, and the material of the contact layer (22) is polymer.
8. femoral implant according to claim 2, which is characterized in that the contact layer (22) is towards the pin (10)
Axis protrusion setting formed flange (23), the flange (23) setting the neck of femur and the porous structure layer (21) it
Between.
9. femoral implant according to claim 1, which is characterized in that the pin (10) is threaded through in femoral head, institute
Stating femoral implant further includes fixed part (30), and fixed part (30) setting is in the pin (10) far from the coronal
(20) second end.
10. femoral implant according to claim 9, which is characterized in that the fixed part (30) is nut, the nut
It is arranged on the pin (10) by helicitic texture.
11. femoral implant according to claim 9, which is characterized in that the pin (10) stretches out the femoral head
Second end has been arranged radially multiple fixation holes (11) along the pin (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718286.XA CN110368140A (en) | 2019-08-05 | 2019-08-05 | Femoral implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718286.XA CN110368140A (en) | 2019-08-05 | 2019-08-05 | Femoral implant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110368140A true CN110368140A (en) | 2019-10-25 |
Family
ID=68257968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910718286.XA Pending CN110368140A (en) | 2019-08-05 | 2019-08-05 | Femoral implant |
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| CN (1) | CN110368140A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111938874A (en) * | 2020-06-04 | 2020-11-17 | 北京积水潭医院 | Ulna coronal process prosthesis device and installer and installing method thereof |
| CN112545715A (en) * | 2020-11-23 | 2021-03-26 | 西安交通大学 | Artificial joint-oriented directional aggregation lubrication method of field dilute solution |
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|---|---|---|---|---|
| CN1596091A (en) * | 2001-12-04 | 2005-03-16 | 迪斯酋有限公司 | Implants for load bearing applications |
| CN101321506A (en) * | 2005-12-05 | 2008-12-10 | 伊骜安尼斯·佛拉肖斯 | Hip resurfacing implant |
| CN105030376A (en) * | 2015-02-10 | 2015-11-11 | 江苏奥康尼医疗科技发展有限公司 | Total hip surface replacement implant |
| CN205163319U (en) * | 2015-11-11 | 2016-04-20 | 青岛科技大学 | Artificial femoral head |
| CN109662808A (en) * | 2019-03-01 | 2019-04-23 | 安徽工程大学 | A kind of hip prosthesis |
| CN211131550U (en) * | 2019-08-05 | 2020-07-31 | 北京爱康宜诚医疗器材有限公司 | Femoral implant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111938874A (en) * | 2020-06-04 | 2020-11-17 | 北京积水潭医院 | Ulna coronal process prosthesis device and installer and installing method thereof |
| CN112545715A (en) * | 2020-11-23 | 2021-03-26 | 西安交通大学 | Artificial joint-oriented directional aggregation lubrication method of field dilute solution |
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Effective date of registration: 20220316 Address after: S35 2PY, 18 Churchill Road, Sheffield, UK Applicant after: Jirui orthopedics Co.,Ltd. Address before: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Applicant before: BEIJING AK MEDICAL Co.,Ltd. |