CN108524061B - Combined type semi-pelvic prosthesis - Google Patents

Combined type semi-pelvic prosthesis Download PDF

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Publication number
CN108524061B
CN108524061B CN201810449352.3A CN201810449352A CN108524061B CN 108524061 B CN108524061 B CN 108524061B CN 201810449352 A CN201810449352 A CN 201810449352A CN 108524061 B CN108524061 B CN 108524061B
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prosthesis
rod
short
pelvic
hip joint
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CN108524061A (en
Inventor
沈靖南
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First Affiliated Hospital of Sun Yat Sen University
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First Affiliated Hospital of Sun Yat Sen University
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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
    • 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
    • A61F2/30721—Accessories
    • A61F2/30749—Fixation appliances for connecting prostheses to the body
    • 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
    • A61F2/34—Acetabular cups
    • 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
    • A61F2/34—Acetabular cups
    • A61F2002/3412—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses a composite semi-pelvic prosthesis. The composite semi-pelvic prosthesis comprises an artificial total hip joint and a pedicle screw-rod system; the artificial total hip joint comprises an acetabulum prosthesis and a short rod; the acetabulum prosthesis is hollow hemispherical, the concave side of the acetabulum prosthesis is used for being embedded into the femoral head at the proximal end of a femur, and the convex surface of the acetabulum prosthesis is provided with at least three short bars; the pedicle screw rod system comprises a titanium rod and a pedicle screw for fixing with a pedicle; the first end of the titanium rod is fixedly connected with the short rod, and the second end of the titanium rod is fixedly connected with the pedicle screw. The short rod position of the artificial total hip joint is flexibly set, and the pedicle screw rod system is matched, so that the artificial total hip joint has the technical effects of simple structure, adjustable installation angle and small limitation on installation conditions.

Description

Combined type semi-pelvic prosthesis
Technical Field
The embodiment of the invention relates to the artificial prosthesis technology, in particular to a composite type semi-pelvic prosthesis.
Background
Currently, surgical resection is the most effective treatment for semi-lateral pelvic malignancies, and the huge bone defects that result after surgery are mainly reconstructed by the semi-pelvic prosthesis. The main advantages of the hemi-pelvic prosthesis include: the source is not limited by the donor; can be temporarily assembled in the operation, and has wide application range; the function of the limbs in a short time after the operation can be recovered; surgical and prosthetic complications are acceptable. These advantages make it the most widely used reconstruction of huge pelvic bone defects. After being used for years outside and inside, a plurality of retrospective researches of long-time follow-up visit currently prove the safety and the effectiveness of the traditional Chinese medicine.
Conventional hemi-pelvic prosthesis designs are numerous, but the core design is to attach the remaining ilium or sacral ala via mechanical structures such as screws, snaps, etc. to complete the reconstruction of the anatomy and mechanical conduction. The conventional assembled semi-pelvic prosthesis used for bone tumor in the first hospital affiliated to Zhongshan university rebuilds the bony connection and biomechanical conduction from the middle shaft bone to the affected lower limb through the sacrum connecting seat screw and the sacrum hook of the prosthesis. Other hemi-pelvic prosthesis designs are similar. The design method requires that enough ilium or sacrum still remains after tumor resection for fixing a prosthesis system, and for patients with tumors widely invading one side of acetabulum and sacroiliac joints, the conventional hemi-pelvic prosthesis cannot be installed and fixed after tumor resection, and the reconstruction of bone defects cannot be reliably completed, so that the patients become a relative contraindication of the limb remaining surgery and are often forced to accept hemi-pelvic amputation surgery with extremely large physical and mental trauma.
With the development of bone tumor surgical diagnosis and treatment technology, with the help of effective adjuvant therapy, the survival rate of patients with pelvic malignant tumor is continuously improved, the long-term limb function is continuously improved, and the survival quality is obviously improved. However, for patients with tumors which widely invade the acetabulum and the sacroiliac joint, no reliable prosthesis is available at present, and with the increasing number of patients, the strong desire to retain limbs and the higher requirement on the postoperative quality of life, the new semi-pelvic prosthesis suitable for the patients is urgently required.
Disclosure of Invention
The invention provides a composite semi-pelvic prosthesis, which aims to solve the problem that the prosthesis cannot be fixed or is difficult to fix due to the fact that a patient resects all ilium and part of sacrum.
The embodiment of the invention provides a composite semi-pelvic prosthesis, which comprises: artificial total hip and pedicle screw systems;
the artificial total hip joint comprises an acetabulum prosthesis and a short rod;
the acetabulum prosthesis is hollow hemispherical, the concave side of the acetabulum prosthesis is used for being embedded into the femoral head at the proximal end of a femur, and the convex surface of the acetabulum prosthesis is provided with at least three short bars; the pedicle screw rod system comprises a titanium rod and a pedicle screw for fixing with a pedicle;
the first end of the titanium rod is fixedly connected with the short rod, and the second end of the titanium rod is fixedly connected with the pedicle screw.
Optionally, the extension line of the short rod passes through the spherical center of the acetabular prosthesis.
Optionally, the included angle between the short rod and the plane formed by the concave side of the acetabular prosthesis is greater than 0 ° and smaller than 90 °.
Optionally, the number of the short rods is three, and an included angle between any two short rods is 120 °.
Optionally, when the composite semi-pelvic prosthesis is installed, the pedicle screws are fixed to pedicles on the same side of lumbar vertebra 4 and/or 5.
Optionally, the number of the pedicle screws on the titanium rod is at least one.
Optionally, the composite hemi-pelvic prosthesis further comprises: the acetabulum prosthesis and the short rod are integrally formed or fixedly connected in a welding mode.
Optionally, the composite hemi-pelvic prosthesis further comprises: the first end of the titanium rod is fixedly connected with the short rod through a screw, and the end part of the first end of the titanium rod props against the convex surface of the acetabulum prosthesis.
Optionally, the composite hemi-pelvic prosthesis further comprises: the concave side of the acetabulum prosthesis of the artificial total hip joint is embedded with polyethylene sediment, and the polyethylene sediment is sleeved with the femoral head at the proximal end of the femur during installation.
The invention solves the problem that the prosthesis can not be fixed or is difficult to be fixed due to the fact that a patient cuts off all ilium and part of sacrum by flexibly setting the position of the short rod of the artificial total hip joint and matching with a pedicle screw rod system, and achieves the effects of simple structure, adjustable installation angle and small limitation on installation conditions.
Drawings
FIG. 1 is an elevation view of an artificial total hip joint provided by an embodiment of the invention;
FIG. 2 is a bottom view of an artificial hip joint according to an embodiment of the present invention;
FIG. 3 is a top view of an artificial hip joint according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a composite hemi-pelvic prosthesis according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a front view of an artificial total hip joint provided in an embodiment of the present invention, fig. 2 is a bottom view of an artificial total hip joint provided in an embodiment of the present invention, fig. 3 is a top view of an artificial total hip joint provided in an embodiment of the present invention, and fig. 4 is a schematic structural view of a composite type hemi-pelvic prosthesis provided in an embodiment of the present invention. The present embodiment may be applied to the technical field of artificial hemi-pelvic prostheses, as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the composite hemi-pelvic prosthesis specifically includes the following structure:
an artificial total hip joint 1 and a pedicle screw-rod system 2.
The artificial total hip joint 1 includes an acetabular prosthesis 11 and a short rod 12.
The acetabulum prosthesis 11 is hollow hemispherical, the concave side 111 of the acetabulum prosthesis 11 is used for being embedded into the femoral head at the proximal end of the femur, and the convex surface 112 of the acetabulum prosthesis 11 is provided with at least three short rods 12; the pedicle screw rod system 2 includes a titanium rod 21 and pedicle screws 22 for fixation to the pedicles.
The first end of the titanium rod 21 is fixedly connected with the short rod 12, and the second end is fixedly connected with the pedicle screw (22).
The artificial total hip joint 1 is used for replacing a resected acetabulum of a human body, is particularly used for being embedded into a femoral head at the proximal end of a femur, and limits and corrects the range of motion of the proximal end of the femur, so that a patient can recover basic limb functions. In this embodiment, the proximal femur includes a human proximal femur and a proximal femoral prosthesis.
In general, the pedicle screw rod system 2 is used to fix an object to be fixed to a pedicle by a titanium rod 21 and a pedicle screw 22, and has a function of adjusting the position and angle of the fixed object. The pedicle of vertebral arch is a part of vertebral arch, which is short and thick at the upper back of vertebral body and can be used as a carrier for installing pedicle screws 22 without affecting the function of human body. In the present embodiment, the pedicle screw-rod system 2 is used to fix the artificial total hip joint 1 to the pedicle of a vertebral arch through the titanium rod 21 and the pedicle screw 22, and has a function of adjusting the position and angle of the artificial total hip joint 1.
Further, the acetabular component 11 is a hollow hemisphere, which is half of a sphere, and the concave side 111 of the acetabular component 11 forms a cross section with the largest area in the cross section of the hemispherical acetabular component 11. The proximal femur can be a human proximal femur or a proximal femur prosthesis, and whether to use the proximal femur prosthesis is determined according to the human proximal femur condition of the patient. In use, the proximal end of a human femur, or the femoral head of a proximal femoral prosthesis, is inserted into the concave side 111 of the acetabular prosthesis 11. The convex surface 112 of the acetabular prosthesis 11 is provided with at least one short rod 12, the length and the cross-sectional area of each short rod 12 are not limited, the same or different lengths and cross-sectional areas can be adopted, and the number of the short rods 12 is not limited, and is determined according to the condition of illness and the bone breakage condition of a patient.
In the present embodiment, the pedicle screw-rod system 2 is used to fix the artificial total hip joint 1 to the pedicle of a vertebral arch by a titanium rod 21 and a pedicle screw 22, and has a function of adjusting the installation position and angle of the artificial total hip joint 1.
Specifically, a first end of the titanium rod 21 is fixedly connected with the short rod 12, and a second end is fixedly connected with the pedicle screw 22. The installation position and the angle of the artificial total hip joint 1 can be properly adjusted or adapted through the bending arrangement of the titanium rod 21.
According to the technical scheme of the embodiment, the position of the short rod 12 on the artificial total hip joint 1 is flexibly set, and the artificial total hip joint 1 is fixed on the vertebral pedicle by matching with a vertebral pedicle screw rod system, so that the problem that the prosthesis cannot be fixed or is difficult to fix due to the fact that a patient cuts off all ilium and part of sacrum is solved, and the effects of simple structure, adjustable installation angle and small limitation on installation conditions are achieved.
On the basis of the technical scheme, the extension line of the short rod 12 passes through the hemispherical centre of the acetabular prosthesis 11.
By limiting the extension line of the short rod 12 to pass through the spherical center of the acetabular prosthesis 11, the contact area of the short rod 12 and the convex surface 112 of the acetabular prosthesis 11 is maximized and the stress is uniform, which is beneficial to enhancing the stability of the joint of the short rod 12 and the convex surface 112 of the acetabular prosthesis 11.
Further, the acetabular prosthesis 11 and the short rod 12 are integrally formed or fixedly connected by welding. The integrally formed design is beneficial to strengthen the stability of the joint of the short rod 12 and the convex surface 112 of the acetabular prosthesis 11. The welding mode is favorable for simplifying the manufacturing process of the artificial total hip joint 1.
Preferably, a protrusion is provided at the junction of the short rod 12 and the convex surface 112 of the acetabular prosthesis to increase the contact area and enhance the connection stability.
On the basis of the above described embodiment, the short bar 12 forms an angle with the plane formed by the concave side 111 of the acetabular prosthesis 11 which is greater than 0 ° and less than 90 °.
Preferably, the number of the short bars 12 is three, and the included angle between any two short bars 12 is 120 °.
The embodiment is described with the case that the number of the short rods 12 is three, the artificial total hip joint 1 can be produced in a standardized manner by limiting the number of the short rods 12 to three and the included angle between any two short rods to 120 °, and the installation stability of the artificial total hip joint 1 can be further increased by the uniform distribution of the three short rods 12. In addition, the included angle between the short rod 12 and the plane formed by the concave side 111 of the acetabular prosthesis 11 is larger than 0 degree and smaller than 90 degrees, so that most angle requirements are met, and the adaptability selection can be flexibly performed according to the illness state of the patient.
On the basis of the above-mentioned embodiment, when the composite semi-pelvic prosthesis is installed, the pedicle screws 22 are fixed to the pedicles on the same side of the 4 th and/or 5 th lumbar vertebrae.
Wherein the pedicle of the lumbar vertebra close to the patient requiring hemipelvic reconstruction is selected as the fixation position for the pedicle screws 22, and the pedicles on the same side of the 4 th and 5 th lumbar vertebrae are the preferred option.
Further, the number of the pedicle screws 22 on the titanium rod 21 is at least one. The connection stability of the titanium rod 21 and the vertebral pedicle can be ensured by arranging a plurality of pedicle screws 22.
Preferably, the first end of the titanium rod 21 is fixedly connected with the short rod 12 through the screw rod 3, and the end of the first end of the titanium rod 21 is abutted against the convex surface 112 of the acetabular prosthesis 11.
Wherein, the both ends terminal department of screw rod 3 is provided with the hole that runs through screw rod 3 both ends respectively, and two holes are parallel each other, are used for penetrating stub 12 and titanium stick 21 respectively, and two hole departments still are provided with screw part and consolidate stub 12 and titanium stick 21.
Furthermore, the stability of the installation of the titanium rod 21 is increased by arranging the triangular structure formed by the end part of the first end of the titanium rod 21 abutting against the convex surface 112 of the acetabular prosthesis 11. In addition, the titanium rod 21 can be further bent to adapt to the installation position and angle of the artificial total hip joint 1.
In the above embodiment, the concave side 111 of the acetabular prosthesis 11 of the artificial total hip joint 1 is embedded with a polyethylene precipitate (not shown), and when the artificial total hip joint is installed, the polyethylene precipitate (not shown) is sleeved on the femoral head (not shown) at the proximal end of the femur.
Wherein the polyethylene deposit (not shown) is in a hollow hemispherical shape and is used for being embedded into the concave side 111 of the acetabular prosthesis 11 of the artificial total hip joint 1, and the concave side (not shown) of the polyethylene deposit (not shown) can be used for being sleeved with the femoral head (not shown) at the proximal end of the femur. The polyethylene precipitate (not shown) acts as a force buffer and reduces the wear between the proximal femoral head (not shown) and the artificial hip joint 1.
The following describes the installation process of the composite hemi-pelvic prosthesis provided in this embodiment: for a patient with the acetabulum and the sacroiliac joint (Enneking pelvic tumor zone I + II + IV) of the half-side pelvis which are widely invaded by tumors, the patient does not need to take care of the surgical boundary of resection for reconstruction of the prosthesis, the patient directly carries out wide tumor resection firstly, pedicle screws 22 are placed in the 4 th and/or 5 th lumbar vertebral pedicle of the affected side after the resection, then the femoral head at the proximal end of the affected side femur is inserted into the concave side 111 of the acetabulum prosthesis 11 of the artificial full hip joint 1, after the rotation center of the hip joint is determined, the pedicle screws 22 and the short rod 12 on the convex side 111 of the acetabulum prosthesis 11 of the artificial full hip joint 1 are fixed in a cross mode through the titanium rod 21, then the fixing of the artificial full hip joint 1 is completed, and then the hip reduction joint after polyethylene precipitation is installed in the artificial full hip joint 1, so.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (6)

1. A composite hemi-pelvic prosthesis, comprising: artificial total hip and pedicle screw systems;
the artificial total hip joint comprises an acetabulum prosthesis and a short rod;
the acetabulum prosthesis is hollow hemispherical, the concave side of the acetabulum prosthesis is used for being embedded into the femoral head at the proximal end of a femur, and the convex surface of the acetabulum prosthesis is provided with at least three short bars; the pedicle screw rod system comprises a titanium rod and a pedicle screw for fixing with a pedicle;
the first end of the titanium rod is fixedly connected with the short rod, and the second end of the titanium rod is fixedly connected with the pedicle screw;
the extension line of the short rod passes through the spherical center of the acetabular prosthesis;
the included angle between the short rod and the plane formed by the concave side of the acetabulum prosthesis is more than 0 degree and less than 90 degrees;
the number of the short rods is three, and the included angle between any two short rods is 120 degrees;
the titanium rod is arranged in a bending mode to adapt to the installation position and the angle of the artificial total hip joint.
2. The composite hemi-pelvic prosthesis of claim 1, wherein the pedicle screws are fixed to pedicles on the ipsilateral side of the 4 th and/or 5 th lumbar spine when the composite hemi-pelvic prosthesis is installed.
3. The composite hemi-pelvic prosthesis of claim 1, wherein the number of pedicle screws on the titanium rod is at least one.
4. The composite hemi-pelvic prosthesis of claim 1, further comprising: the acetabulum prosthesis and the short rod are integrally formed or fixedly connected in a welding mode.
5. The composite hemi-pelvic prosthesis of claim 1, further comprising:
the first end of the titanium rod is fixedly connected with the short rod through a screw, and the end part of the first end of the titanium rod props against the convex surface of the acetabulum prosthesis.
6. The composite hemi-pelvic prosthesis of claim 1, further comprising:
the concave side of the acetabulum prosthesis of the artificial total hip joint is embedded with polyethylene sediment, and the polyethylene sediment is sleeved with the femoral head at the proximal end of the femur during installation.
CN201810449352.3A 2018-05-11 2018-05-11 Combined type semi-pelvic prosthesis Active CN108524061B (en)

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Citations (3)

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Publication number Priority date Publication date Assignee Title
CN205494086U (en) * 2016-03-18 2016-08-24 十堰市太和医院 Artificial semi -pelvis prosthesis
CN107280813A (en) * 2017-07-18 2017-10-24 优适医疗科技（苏州）有限公司 Acetabular component prosthese
CN206621458U (en) * 2016-10-28 2017-11-10 北京恒尚科技有限公司 A kind of acetabular cup prosthesis of porous surface

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Publication number Priority date Publication date Assignee Title
CN100420428C (en) * 2005-07-01 2008-09-24 温中一 Multifunctional large pelvis artificial prothesis
CN100593395C (en) * 2007-12-18 2010-03-10 中国人民解放军第四军医大学 Multi-axis assembled anti-infective semi-pelvis false body
CN201939536U (en) * 2010-11-29 2011-08-24 北京大学人民医院 Artificial semipelvic prosthesis for recovering continuity from lumbosacral vertebrae to hip joint
CN202654268U (en) * 2012-04-26 2013-01-09 上海晟实医疗器械科技有限公司 Hemipelvectomy prosthesis
CN102688111A (en) * 2012-06-08 2012-09-26 上海晟实医疗器械科技有限公司 Half-pelvic prosthesis for patients with all ilium and acetabulum cut off
CN202665752U (en) * 2012-06-08 2013-01-16 上海晟实医疗器械科技有限公司 Hemipelvic prosthesis for patient with complete ilium or acetabulum removed
CN107115151A (en) * 2017-04-06 2017-09-01 中国人民解放军第四军医大学 The preparation method of pinpoint acetabular bone guide plate is aided in after a kind of half pelvis excision

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205494086U (en) * 2016-03-18 2016-08-24 十堰市太和医院 Artificial semi -pelvis prosthesis
CN206621458U (en) * 2016-10-28 2017-11-10 北京恒尚科技有限公司 A kind of acetabular cup prosthesis of porous surface
CN107280813A (en) * 2017-07-18 2017-10-24 优适医疗科技（苏州）有限公司 Acetabular component prosthese

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