CN114886618A - Bionic acetabulum reconstruction prosthesis for ilium inner plate osseointegration based on 3D printing - Google Patents
Bionic acetabulum reconstruction prosthesis for ilium inner plate osseointegration based on 3D printing Download PDFInfo
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- CN114886618A CN114886618A CN202210449166.6A CN202210449166A CN114886618A CN 114886618 A CN114886618 A CN 114886618A CN 202210449166 A CN202210449166 A CN 202210449166A CN 114886618 A CN114886618 A CN 114886618A
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- 238000010146 3D printing Methods 0.000 title claims abstract description 27
- 210000000588 acetabulum Anatomy 0.000 title claims abstract description 19
- 238000010883 osseointegration Methods 0.000 title claims abstract description 19
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 15
- 210000003689 pubic bone Anatomy 0.000 claims abstract description 38
- 210000000988 bone and bone Anatomy 0.000 claims description 33
- 238000005520 cutting process Methods 0.000 claims description 18
- 210000004061 pubic symphysis Anatomy 0.000 claims description 15
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Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- 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
- A61F2/30767—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
- A61F2/32—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
- A61F2/30767—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
Abstract
The invention relates to the technical field of prosthesis reconstruction structures, in particular to an ilium inner plate osseointegration bionic acetabulum reconstruction prosthesis based on 3D printing, and solves the technical defects that the condition caused by infection after reconstruction is large, the damage to muscle nerve vascular tissues is large, and the area of osseointegration is small when the prosthesis is connected with ilium. The pubis combined fixing component is fixed at the position of the healthy lateral pubis combination by a screw fixing mode; the other end of the pubis combined fixing component is fixed on an acetabular part of the prosthesis main body in a screw fixing mode; and an ilium wing fixing component connected with the pubis combined fixing component; the ilium wing fixing component can partially pull up the outer side of the ilium and is connected with the ilium wing in a screw fixing mode; the prosthesis main body, the pubis combined fixing component and the ilium wing fixing component are constructed and manufactured by 3D printing.
Description
Technical Field
The invention relates to the technical field of prosthesis reconstruction structures, in particular to an ilium inner plate osseointegration bionic acetabulum reconstruction prosthesis based on 3D printing.
Background
In the prior art, according to the Enneking typing-tumor resection and reconstruction reference standard in malignant bone tumor, as shown in figure 5, the resection range of ilium in a region I, periacetabular resection in a region II, ischium and pubic resection in a region III and a resection range of a region IV relate to sacrum; the aim is to achieve reconstruction of the region II and surrounding resection and restoration of the intact pelvic structure.
The main current situation of the prior art is as follows: autologous bone and allogeneic bone grafts have been abandoned because of the problems of high infection rate, bone origin, etc. In addition, in the prior art, i.e. the current approach taken is based on the current state of the art development trend of the currently used prosthesis reconstruction, which is based on the reconstruction with saddle-shaped prostheses; concrete finger
The Mark II generation prosthesis has better improvement than I generation prosthesis, but actually has higher complication incidence rate, mainly comprises displacement, dislocation and deep infection, and the prosthesis structure design does not meet the biomechanical requirement;
it is extended that the prior art, specifically the structure of fig. 6, PAR prosthesis (MarkIII generation prosthesis), provides better stability and better prosthesis in-situ rate, and can achieve better reconstruction function; however, in the embodiment of the technique which includes a cup-shaped socket whose anchoring post is inserted into the remaining ilium along the load transmitting force line, a sufficient amount of ilium must be retained for use of the prosthesis;
in combination with the above, please refer to fig. 7 for further description of the main embodiment of the prior art, which includes steps a to G; a METS tapered hemi-pelvic prosthesis system for reconstructing pelvic defects in the acetabular region, facilitating osseointegration to enhance prosthesis stability; the prosthesis requires the use of bone cement fixation and pins may be added to increase the anterior fixation effect.
The main situation of the prior art shows that the prior art has the technical defects that a plurality of auxiliary components such as reconstruction steel plates, fixing screws, steel wires, bone cement and the like are adopted for combined reconstruction, the components are not customized, the condition caused by infection after reconstruction and the damage to the muscle nerve vascular tissue are large, and the area of bone integration is small when the components are connected with the ilium.
Disclosure of Invention
The invention aims to solve the technical defects that in the prior art, the combined reconstruction adopts a plurality of reconstruction steel plates, fixing screws, steel wires, bone cement and other accessory components, is not customized, causes serious damage to muscle nerve vascular tissues after reconstruction due to infection, and realizes small bone integration area when being connected with the ilium. The technical problem is to provide a bionic acetabulum reconstruction prosthesis integrated with an iliac inner plate bone based on 3D printing.
It should be noted that: the reconstruction of the I region is to restore the ilium, and the main purpose of the technical scheme is to reconstruct the functions of the II region and the III region; at present, the prosthesis in clinic is mainly a pure acetabulum prosthesis fixation, and does not consider the pubis union design, however, the pubis union can resist shearing force and is used as a component part of the pelvis anterior ring, which plays an important role in maintaining the stability of the pelvis anterior ring. The prosthesis without pubic symphysis has insufficient shear resistance, and the screws are often loosened and even pulled out by loads from different directions during daily activities, which finally results in the failure of the prosthesis. Moreover, prostheses in the market are often fixed only by screws, and the fixing structure only has a function of mechanical fixation, cannot realize bone ingrowth and further cannot realize long-term fixation of the metal prostheses and human bones.
In order to solve the technical problems, the technical scheme of the invention is as follows: artificial body is rebuild to bionical acetabulum of ilium inner plating osseointegration based on 3D prints is applied to one side of rebuilding artificial body, includes:
a prosthesis body 100;
further comprising:
the pubis symphysis fixing component 10 is fixed at the lateral pubis symphysis 1 by one end of the pubis symphysis fixing component 10 in a screw fixing mode;
the other end of the pubis symphysis fixing component 10 is fixed on the acetabulum part 2 of the prosthesis main body 100 in a screw fixing mode; and
an ilium fixation assembly 20 connected to the pubic symphysis fixation assembly 10;
the ilium wing fixing component 20 can partially pull up the outer side of the ilium 3 and is connected with the ilium wing 5 in a screw fixing mode;
the prosthesis main body 100, the pubis combined fixing component 10 and the ilium wing fixing component 20 are constructed and manufactured by 3D printing.
In particular, the pubic symphysis fixation assembly 10 comprises:
a first pubic plate 11, one end of which can be attached to the periphery of the acetabular cup 4 and extends in the direction of the pubic bone 7 on the other side away from the acetabular cup 4;
a pubic symphysis fixing plate 12 fixedly connected with the first pubic plate 11, and provided with screw holes 13 in the extending direction of the first pubic plate 11;
the pubis symphysis fixing plate 12 is positioned at the position corresponding to the pubis symphysis 1.
Specifically, the screw hole 13 includes two screw holes, and a screw 40 is connected to the screw hole 13.
Specifically, the iliac wing fixation assembly 20 includes:
an iliac wing connecting body 21 that covers the iliac wing 5;
and a plurality of iliac wing connecting holes 22 which are arranged on the main body 21 in a row and correspond to the first edge of the iliac wing 5.
Specifically, the iliac wing connecting body 21 has a connecting space 23 opened in a first direction from the acetabular cup 4 to the iliac wing 5.
Specifically, the prosthesis body 100 includes:
an iliac support 101, one end of which is connected with the acetabular cup 4 and the other end of which can be used for pulling up a second end of the iliac wing 5;
an iliac wing connecting part 102 formed by extending from a first end of the iliac tray 101, capable of fitting the shape of the connecting space 23, and placed in the connecting space 23;
the iliac wing connecting part 102 is provided with a plurality of connecting holes 24, and a plurality of connecting holes can be provided with connecting screws to connect the iliac wings 5.
Specifically, the method further comprises the following steps:
the part of the ilium support 101, which is positioned at the external side of the ilium, is provided with an anti-falling barrier 104.
Specifically, a pressurizing nail hole is formed in the acetabular cup and used for centrally fixing the iliac wing fixing component.
Specifically, in the fixing mode of the screw, the screw is a locking type, and the distal end of the locking screw is a single thread and gradually becomes a double thread toward the proximal direction.
Specifically, when the prosthesis main body 100, the pubis combined fixing component 10 and the ilium wing fixing component 20 are constructed based on 3D printing, the adopted positioning measurement mode is as follows:
confirming the fixed position of the artificial prosthesis through preoperative examination influence examination data, selecting the anterior superior iliac spine as an anatomical mark by utilizing a 3D printing bone cutting guide plate 50 made of resin, attaching and fixing the bone cutting guide plate to the anterior superior iliac spine, and guiding a swinging saw to perform bone cutting operation through a guide plate gap 53;
the bone cutting guide 50 includes: a main body 51, a positioning hole 52 provided on the main body, and the guide plate gap 53 opened on the main body 51.
The invention has the following beneficial effects:
on the first hand, when the technical scheme is actually applied, the operation is convenient to enter, and the injury to soft tissues such as muscle, nerve and blood vessels is small;
in the second aspect, this prosthesis main part adopts the laminating design of the bionical form of ilium inner panel, utilizes the laminating of micropore and bone to realize the osseointegration of maximum area, and prior art's prosthesis is not the design of bionical form, only has several points to realize the osseointegration, compares in prior art, and this application advantage is more obvious.
And in the third aspect, the anatomical morphology and the stress conduction simulation are realized by integrally designing the morphology of the contralateral acetabulum.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the pubic symphysis fixation assembly of the present invention;
FIG. 3 is a schematic structural view of the anti-separation block of the present invention;
FIG. 4 is a schematic view of the bone cutting guide of the present invention;
FIG. 5 is a schematic diagram of a prior art reconstruction reference standard;
fig. 6 is a schematic view of a Mark prosthesis according to the prior art;
FIG. 7 is a schematic process diagram of a prior art reconstruction approach;
fig. 8 is a schematic view of a screw of the present invention.
The reference numerals in the figures denote:
the main body of the prosthesis 100, the pubis joint fixing component 10 and the ilium wing fixing component 20;
the lateral pubis symphysis 1, the acetabulum part 2, the ilium 3, the acetabular cup 4, the ilium wing 5 and the pubis 7;
a first pubis plate 11, a pubis combined fixing plate 12, screw holes 13 and screws 40;
an ilium wing connecting main body 21 and an ilium wing connecting hole 22;
an ilium support 101, an ilium wing connecting part 102, a connecting hole 24 and an anti-falling block 104;
a bone cutting guide 50, a main body 51, a positioning hole 52 and a guide gap 53;
the excision of the area I is iliac excision, the excision of the area II is periacetabular excision, the excision of the area III is ischium and pubis excision, and the excision of the area IV is sacrum;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention; for convenience of description, in the present application, "left side" is "first end", "right side" is "second end", "upper side" is "first end", and "lower side" is "second end" in the current view, so that the description is for the purpose of clearly expressing the technical solution, and should not be construed as an improper limitation to the technical solution of the present application.
Referring to fig. 1, the 3D printing-based ilium inner plate osseointegration bionic acetabulum reconstruction prosthesis applied to one side of the reconstruction prosthesis includes: a prosthesis body 100; the prosthesis main body 100 is manufactured by a metal 3D printing technology on the basis of ensuring the original bionic structure of the ilium through preoperative measurement, and in-situ reconstruction of each important anatomical position is ensured.
Further comprising: the pubis symphysis fixing component 10, wherein one end of the pubis symphysis fixing component 10 is fixed at the lateral pubis symphysis 1 in a screw fixing mode;
the other end of the pubis united fixing component 10 is fixed on the acetabulum part 2 of the prosthesis main body 100 in a screw fixing mode; and an ilium fixation assembly 20 connected to the pubic symphysis fixation assembly 10; the ilium wing fixing component 20 can partially pull up the outside of the ilium 3 and is connected with the ilium wing 5 in a screw fixing mode; the prosthesis main body 100, the pubis combined fixing component 10 and the ilium wing fixing component 20 are constructed and manufactured by 3D printing.
Referring to fig. 1-3, in one embodiment, a pubic symphysis fixation assembly 10 includes:
a first pubis plate 11, one end of which can be attached to the periphery of the acetabular cup 4 and extends to the other side of the pubic bone 7 away from the acetabular cup 4; a pubic symphysis fixing plate 12 fixedly connected with the first pubic plate 11, and provided with screw holes 13 in the extending direction of the first pubic plate 11; the pubic symphysis fixing plate 12 is positioned at the position corresponding to the pubic symphysis 1.
In a specific embodiment, the screw hole 13 includes two, and the screw 40 is coupled to the screw hole 13.
In one particular embodiment, the iliac wing fixation assembly 20 includes: an ilium wing connecting body 21 covering the ilium wing 5; and a plurality of iliac wing connecting holes 22 which are arranged in a row on the main body of the iliac wing connecting body 21 and correspond to the first edge of the iliac wing 5.
In a specific embodiment, the iliac wing connecting body 21 has a connecting space 23 formed from the acetabular cup 4 to the iliac wing 5 in a first direction.
In one particular embodiment, the prosthesis body 100 includes: the ilium support 101, one end of which is connected with the acetabular cup 4 and the other end of which can be used for pulling up the second end of the ilium wing 5; an iliac wing connection part 102 formed by extending from a first end of the iliac tray 101, capable of fitting the shape of the connection space 23, and placed in the connection space 23; the ilium wing connecting part 102 is provided with a plurality of connecting holes 24, and connecting screws can be arranged in the connecting holes to connect the ilium wing 5.
In a specific embodiment, the method further comprises the following steps: the part of the ilium support 101, which is positioned at the external side of the ilium, is provided with an anti-drop block 104.
In a specific embodiment, a pressurizing nail hole is formed in the acetabular cup and used for centrally fixing the iliac wing fixing component.
In a specific embodiment, the screw is fixed in a locking manner, and the distal end of the locking screw is single-threaded and gradually transits to double threads towards the proximal direction.
Referring to fig. 8, the screw has a front single thread, a rear double thread, a tail cap locking structure, and a surface coating; the thread pitch is designed to be 2mm, and the rear double-thread design is adopted, so that the thread pitch is smaller and more compact, and the device is suitable for stable fixation of cortical bone; the far end is designed into single thread, and the thread pitch is larger, so that the spongy bone anti-falling device is suitable for spongy bone anti-falling and the spongy bone holding force is increased. The surface coating facilitates integrated fixation between the screw and the bone.
Referring to fig. 4, in a specific embodiment, when the prosthesis main body 100, the pubic symphysis fixing component 10 and the iliac wing fixing component 20 are constructed based on 3D printing, the positioning measurement method is as follows: confirming the fixed position of the artificial prosthesis through preoperative examination influence examination data, selecting the anterior superior iliac spine as an anatomical mark by utilizing a 3D printing bone cutting guide plate 50 made of resin, attaching and fixing the bone cutting guide plate to the anterior superior iliac spine, and guiding a swinging saw to perform bone cutting operation through a guide plate gap 53; the bone cutting guide 50 includes: a body 51, a positioning hole 52 provided in the body, and a guide plate gap 53 opened in the body 51. It can be understood that the bone cutting guide plate confirms the range of tumor resection and the fixing position of the artificial prosthesis through image inspection data before operation. On the basis, the bone cutting guide plate is manufactured by resin 3D printing, the anterior superior iliac spine is selected as an anatomical mark, the bone cutting guide plate is attached to and fixed at the anterior superior iliac spine, and the swing saw is guided through the gap of the guide plate to perform bone cutting operation, so that accuracy is ensured, the tumor is contacted in a planned way, and an accurate position is provided for prosthesis placement.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.
Claims (10)
1. Artificial body is rebuild to bionical acetabulum of ilium inner plating osseointegration based on 3D prints is applied to one side of rebuilding the artificial body, and its characterized in that includes:
a prosthesis body (100);
further comprising:
the pubis symphysis fixing component (10), one end of the pubis symphysis fixing component (10) is fixed at the lateral pubis symphysis (1) in a screw fixing mode;
the other end of the pubis symphysis fixing component (10) is fixed on the acetabulum part (2) of the prosthesis main body (100) in a screw fixing mode; and
an ilium wing fixation assembly (20) connected to the pubic symphysis fixation assembly (10);
the ilium wing fixing component (20) can partially pull up the outer side of the ilium (3) and is connected with the ilium wing (5) in a screw fixing mode;
the prosthesis main body (100), the pubis combined fixing component (10) and the ilium wing fixing component (20) are constructed and manufactured by 3D printing.
2. The 3D printing based iliotica endoplate osseointegration bionic acetabular reconstruction prosthesis according to claim 1, characterized in that the pubic symphysis fixation assembly (10) comprises:
a first pubis plate (11), one end of which can be attached to the periphery of the acetabular cup (4) and extends towards the other side of the pubis (7) away from the acetabular cup (4);
a pubic symphysis fixing plate (12) fixedly connected with the first pubic plate (11), and provided with a screw hole (13) in the extending direction of the first pubic plate (11);
the pubis symphysis fixing plate (12) is positioned at the position corresponding to the pubis symphysis (1).
3. The 3D printing-based ilium endoplate osseointegration bionic acetabular reconstruction prosthesis according to claim 2, characterized in that the screw hole (13) comprises two, the screw (40) being connected inside the screw hole (13).
4. The 3D printing based ilium endoplate osseointegration biomimetic acetabular reconstruction prosthesis of claim 2, characterized in that the ilium wing fixation assembly (20) comprises:
an iliac wing connecting body (21) that covers the iliac wing (5);
and the plurality of iliac wing connecting holes (22) are arranged on the main body of the iliac wing connecting body (21) in a row and correspond to the first edge of the iliac wing (5).
5. The 3D printing-based ilium endopelvic bone integration bionic acetabulum reconstruction prosthesis according to claim 4, wherein the ilium wing connection body (21) opens a connection space (23) from the acetabular cup (4) to the first direction of the ilium wing (5).
6. The 3D printing based iliopectinal plate osseointegration bionic acetabular reconstruction prosthesis according to claim 5, characterized in that the prosthesis body (100) comprises:
the ilium support (101) is connected with the acetabular cup (4) at one end and can be used for pulling up a second end of the ilium wing (5) at the other end;
the ilium wing connecting part (102) is formed by extending from the first end of the ilium support (101), can be matched with the shape of the connecting space (23), and is arranged in the connecting space (23);
a plurality of connecting holes (24) are formed in the ilium wing connecting part (102), and a connecting screw can be arranged in the connecting holes to be connected with the ilium wing (5).
7. The 3D printing-based ilium endoplate osseointegration bionic acetabulum reconstruction prosthesis of claim 6, further comprising:
the part of the ilium support (101) is positioned at the outer side of the ilium and is provided with an anti-drop stopper (104).
8. The 3D printing-based ilium endoplate osseointegration bionic acetabulum reconstruction prosthesis according to any one of claims 1-7, wherein a compression nail hole is formed in the acetabulum cup and used for centrally fixing an ilium wing fixing component.
9. The 3D printing-based ilium endopelvic plate osseointegration bionic acetabular reconstruction prosthesis of claim 8, wherein the screws are fixed in a manner that the screws are locked, and the distal ends of the locking screws are single-threaded and gradually transition to double-threaded towards the proximal end.
10. The 3D printing-based ilium endopelvic plate osseointegration bionic acetabulum reconstruction prosthesis according to claim 1, wherein when the prosthesis main body (100), the pubic symphysis fixation assembly (10) and the ilium wing fixation assembly (20) are constructed based on 3D printing, the positioning measurement method adopted is as follows:
the fixing position of the artificial prosthesis is confirmed by preoperative examination influence inspection data, a 3D printing bone cutting guide plate (50) made of resin is used for selecting the anterior superior iliac spine as an anatomical mark, the bone cutting guide plate is attached and fixed to the anterior superior iliac spine, and a swing saw is guided through a guide plate gap (53) to perform bone cutting operation;
the bone cutting guide (50) comprises: the guide plate comprises a main body (51), a positioning hole (52) arranged on the main body and a guide plate gap (53) arranged on the main body (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210449166.6A CN114886618A (en) | 2022-04-26 | 2022-04-26 | Bionic acetabulum reconstruction prosthesis for ilium inner plate osseointegration based on 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210449166.6A CN114886618A (en) | 2022-04-26 | 2022-04-26 | Bionic acetabulum reconstruction prosthesis for ilium inner plate osseointegration based on 3D printing |
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| Publication Number | Publication Date |
|---|---|
| CN114886618A true CN114886618A (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210449166.6A Pending CN114886618A (en) | 2022-04-26 | 2022-04-26 | Bionic acetabulum reconstruction prosthesis for ilium inner plate osseointegration based on 3D printing |
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