CN209790100U - novel full sacrum prosthesis - Google Patents
novel full sacrum prosthesis Download PDFInfo
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- CN209790100U CN209790100U CN201821635111.XU CN201821635111U CN209790100U CN 209790100 U CN209790100 U CN 209790100U CN 201821635111 U CN201821635111 U CN 201821635111U CN 209790100 U CN209790100 U CN 209790100U
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Abstract
The utility model relates to a novel full sacrum false body, include: a base plate; a first support plate; a second support plate; the bottom plate, the first support plate and the second support plate are arranged in an inverted V shape; a first connecting device through which the first plate and the base plate are connected; the second support plate and the bottom plate are connected through the second connecting device; the first universal device is connected with the first supporting plate; and the second universal device is connected with the second support plate. The full-sacrum full-resection nail has the advantages that the positions of the nail rods are adjusted through the first universal device and the second universal device, so that patients with different body types after full-sacrum full-resection can be adapted; the artificial femoral prosthesis is prepared by a 3D printing method, the bone contact surface is a concave-convex surface and is of a bone trabecular structure, and the bone contact surface is attached to the lumbar vertebra or the ilium, so that the bone ingrowth of the prosthesis and the femoral contact surface is facilitated, and the prosthesis has long-term stability; reserving bone grafting space, and performing healing through bone grafting.
Description
Technical Field
The utility model relates to a centrum false body technical field especially relates to a novel full sacrum false body.
Background
The incidence of the sacrum tumor is low, early symptoms are hidden, when a patient sees a doctor, the tumor volume is large, the sacrum has rich blood supply, the surrounding anatomical structure is complex, the local soft tissue coverage is less, and the operation difficulty is large. A common surgical procedure is to perform a total sacral resection followed by implantation of a sacral prosthesis.
the existing sacrum prosthesis is often large in size, and the sacrum prosthesis is a standard prosthesis and cannot be well adapted to patients with different body types. The surface of the sacrum prosthesis is smooth or only has a few small thorns, so that the contact between the sacrum prosthesis and a bone contact surface is unstable, the bone is not favorable for bone ingrowth, and the sacrum prosthesis is displaced or even broken due to the influence of long-term stress after long-term use. In addition, the conventional sacrum prosthesis is often large in size, and a bone grafting space is not reserved, so that effective bone healing cannot be performed, the service life of the sacrum prosthesis is short, a patient needs to perform surgical replacement again, and the treatment cost and the subsequent rehabilitation cost of the patient are increased.
Therefore, there is a need for a sacral prosthesis that can accommodate different patient sizes, facilitate femoral insertion at the interface between the prosthesis and the bone, and improve longevity.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel full sacrum prosthesis aiming at the defects in the prior art.
In order to achieve the purpose, the utility model adopts the technical proposal that:
A novel full sacral prosthesis, comprising:
The bottom plate comprises a first nail hole, and the first nail hole penetrates through the upper surface and the lower surface of the bottom plate;
the first support plate comprises a second nail hole, the second nail hole penetrates through the left surface and the right surface of the first support plate, and the second nail hole is arranged along the length direction of the first support plate;
the second support plate comprises a third nail hole, the third nail hole penetrates through the left surface and the right surface of the second support plate, and the third nail hole is arranged along the length direction of the second support plate;
The first support plate and the second support plate are arranged oppositely, and the first support plate and the second support plate are respectively arranged on the left side and the right side of the bottom plate;
The bottom plate, the first support plate and the second support plate are arranged in an inverted V shape;
A first connecting device through which the first plate and the base plate are connected;
The second support plate and the bottom plate are connected through the second connecting device;
The first universal device is connected with the first support plate and arranged on one side, close to the second support plate, of the first support plate;
the second universal device is connected with the second support plate and arranged on one side, close to the first support plate, of the second support plate;
The first universal device and the second universal device are arranged oppositely.
Preferably, said first and second connection means are "J" shaped.
preferably, the first supporting plate is positioned at the front side of the lower left of the bottom plate;
The second support plate is positioned on the front side of the right lower part of the bottom plate.
Preferably, the length direction of the bottom plate is parallel to the X axis;
The length direction of the first support plate is parallel to the Y axis;
the length direction of the second support plate is parallel to the Y axis.
Preferably, the number of the first nail holes is at least two, and the first nail holes are arranged along the length direction of the bottom plate;
the number of the second nail holes is at least two, and the second nail holes are arranged along the length direction of the first supporting plate;
The number of the third nail holes is at least two, and the third nail holes are formed along the length direction of the second support plate.
Preferably, at least one first nail hole is connected with a spongy nail, and at least one first nail hole is connected with a locking nail;
At least one second nail hole is connected with a spongy nail, and at least one second nail hole is connected with a locking nail;
At least one third nail hole is connected with spongy nails, and at least one third nail hole is connected with locking nails.
preferably, the number of the first nail holes is two, one first nail hole is connected with a spongy nail, and the other nail hole is connected with a locking nail;
the second nail hole is three, and three the screw of second nail jogged joint does in proper order: locking nails, cancellous nails and locking nails;
the third nail hole is three, and three the screw of third nail jogged joint does in proper order: locking nails, cancellous nails, and locking nails.
Preferably, each first nail hole forms an included angle with the bottom plate which is different; and/or
The included angle formed by each second nail hole and the first support plate is different; and/or
and the included angle formed by each third nail hole and the second support plate is different.
Preferably, the first omni-directional device is disposed in a '+' -shape;
the second universal device is in a 'Brilliant' configuration.
Preferably, the first universal device is connected with the nail rod; the second universal device is connected with the nail rod.
preferably, the base plate, the first support plate, the second support plate, the first connecting device and the second connecting device are integrally formed by a 3D printing method.
preferably, the method further comprises the following steps:
a first guide plate disposed on a left side of the first support plate;
A second guide plate disposed on a right side of the second support plate.
Preferably, the upper surface of the bottom plate, the left surface of the first support plate and the right surface of the second support plate are uneven surfaces.
The utility model adopts the above technical scheme, compare with prior art, have following technological effect:
The novel full sacrum prosthesis of the utility model can adapt to patients with different body types after full sacrum resection by adjusting the position of the nail rod through the first universal device and the second universal device; the base plate, the first support plate and the second support plate are all manufactured by a 3D printing method, the surfaces contacting with the lumbar vertebra or the ilium are uneven surfaces and are of bone trabecular structures, and the base plate is attached to the lumbar vertebra or the ilium, so that the bone ingrowth of the contact surface of the prosthesis and the femur is facilitated, and the prosthesis has long-term stability; the size and the volume of the prosthesis are small, the bone grafting space is reserved, the prosthesis can be healed through bone grafting, and the long-term survival rate of the prosthesis is improved.
Drawings
fig. 1(a) to (g) are a six-view and a perspective view of an exemplary embodiment of the present invention.
Fig. 2 is a cross-sectional view from the left of a first nail hole of the bottom plate of an exemplary embodiment of the invention.
FIG. 3 is a top perspective cross-sectional view of a second nail hole of the first plate in accordance with an exemplary embodiment of the present invention.
fig. 4 is a perspective view of a preferred embodiment of the present invention.
fig. 5 is a schematic view of a preferred embodiment of the present invention in use.
Wherein the reference numerals are: a base plate 1; a first nail hole 2; a first support plate 3; a second nail hole 4; a second support plate 5; a third nail hole 6; a first connecting means 7; second connecting means 8; a first universal device 9; a second gimbal device 10; a first guide plate 11; a second guide plate 12; cancellous nails 13; a locking nail 14; and (4) a nail rod 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
it should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
the present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
This embodiment is an illustrative embodiment of the present invention, as shown in fig. 1(a) - (g), a novel full sacral prosthesis comprises a bottom plate 1, a first supporting plate 3, a second supporting plate 5, a first connecting device 7, a second connecting device 8, a first universal device 9 and a second universal device 10, wherein the first supporting plate 3 is connected to the bottom plate through the first connecting device 7, the second supporting plate 5 is connected to the bottom plate 1 through the second connecting device 8, the first supporting plate 3 and the second supporting plate 5 are oppositely disposed and respectively disposed at the left and right sides of the bottom plate 1, the first universal device 9 is connected to the first supporting plate 3, and the second universal device 10 is connected to the second supporting plate 5.
the bottom plate 1 is used for being connected with the lumbar vertebrae, and bottom plate 1 includes a plurality of first nail holes 2, and first nail hole 2 runs through the upper surface and the lower surface of bottom plate 1, and a plurality of first nail holes 2 set up along the length direction of bottom plate 1.
First extension board 3 is used for being connected with the ilium of lumbar vertebrae one side, and first extension board 3 includes a plurality of second nail holes 4, and second nail hole 4 runs through the left surface and the right surface of first extension board 3, and a plurality of second nail holes 4 set up along the length direction of first extension board 3.
The second support plate 5 is used for being connected with the ilium on the other side of the lumbar vertebra, the second support plate 5 comprises a plurality of third nail holes 6, the third nail holes 6 penetrate through the left surface and the right surface of the second support plate 5, and the plurality of third nail holes 6 are arranged along the length direction of the second support plate 5.
the first connecting means 7 has a "J" shape, a first end of the first connecting means 7 is connected to the lower surface of the base plate 1, and a second end of the first connecting means 7 is connected to the right surface of the first supporting plate 3.
The second connecting means 8 has a "J" shape, the first end of the second connecting means 8 is connected to the lower surface of the base plate 1, and the second end of the second connecting means 8 is connected to the left surface of the second strip 5, as in the first connecting means 7.
The first end of the first connecting means 7 and the first end of the second connecting means 8 may be located on the left and right sides of the bottom plate 1, respectively, i.e., on the left and right sides of the first nail hole 3, respectively; or on the rear side of the base plate 1, i.e. on the rear side of the first nail hole 3.
as shown in figures 1(a) - (b), the bottom plate 1, the first support plate 3 and the second support plate 5 are arranged in a ' pin ' shape and finally arranged in an inverted V ' shape.
Further, as shown in fig. 1(c) to (f), the first and second brackets 3, 5 are located at a front position below the bottom plate 1, that is, the bottom plate 1, the first bracket 3, and the second bracket 5 are arranged in a "pin" shape and are disposed in a "Λ" shape as viewed from a top view (fig. 1 (c)).
The first universal device 9 is arranged on the right surface of the first support plate 3, namely the first universal device 9 is arranged on one side of the first support plate 3 close to the second support plate 5, the first universal device 9 comprises a first universal nail and a first connecting column, the tail end of the first universal nail is connected with the first end of the first connecting column, the second end of the first connecting column is connected with the first support plate 3, and the first universal nail and the first connecting column are arranged in an L shape. The axial direction of the first connecting column is parallel to the thickness direction of the first supporting plate 3 or forms an included angle with the thickness direction of the first supporting plate 3, and specifically, the axial direction of the first connecting column faces to the right front of the first supporting plate 3. The head end of the first universal nail (i.e., the end remote from the first connecting post) can be adjusted within a range of about 360 deg..
The second universal device 10 is arranged on the left surface of the second support plate 5, namely the second universal device 10 is arranged on one side, close to the first support plate 3, of the second support plate 5, the second universal device 10 comprises a second universal nail and a second connecting column, the tail end of the second universal nail is connected with the first end of the second connecting column, the second end of the second connecting column is connected with the second support plate 5, the axial direction of the second connecting column is parallel to the thickness direction of the second support plate 5 or the axial direction of the second connecting column forms an included angle with the thickness direction of the second support plate 5, and particularly, the axial direction of the second connecting column is free of thinking about the left front side of the second support plate 4. The head end of the second universal nail (i.e., one end of the principle second connection post) can be adjusted within a range of about 360 °.
The length direction of the bottom plate 1 is parallel to the X axis, and the length directions of the first support plate 3 and the second support plate 5 are parallel to the Y axis.
In the present embodiment, the number of the first nail holes 2, the second nail holes 4 and the third nail holes 6 is plural, that is, the number of the first nail holes 2, the second nail holes 4 and the third nail holes 6 is at least 2.
Further, the number of the first nail holes 2 is 2, the number of the second nail holes 4 is 3, and the number of the third nail holes 6 is 3.
As shown in fig. 2, the first nail holes 2 penetrate through the bottom plate 1 at a certain angle, specifically, an included angle α is formed between the axial direction of the first nail holes 2 and the thickness direction of the bottom plate 1, and the included angle α is in an angle range of 0 ° to 90 ° (excluding 90 °). When the included angle alpha is 0 degree, the axial direction of the first nail hole 2 is parallel to the thickness direction of the bottom plate 1; when the included angle alpha is larger than 0 degrees and smaller than 90 degrees, the first nail hole 2 penetrates from the front side of the lower surface of the bottom plate 1 to the rear side of the upper surface of the bottom plate 1.
In this embodiment, preferably, the included angle α is greater than 0 ° and less than 45 °; more preferably, the included angle α is greater than 10 ° and less than 35 °.
As shown in fig. 3, the second nail hole 4 penetrates the first supporting plate 3 at a certain angle, specifically, an included angle β is formed between the axial direction of the second nail hole 4 and the thickness direction of the first supporting plate 3, and the included angle β is in an angle range of 0 ° to 90 ° (excluding 90 °). When the included angle beta is 0 degree, the axial direction of the second nail hole 4 is parallel to the thickness direction of the first supporting plate 3; when the included angle β is greater than 0 ° and smaller than 90 °, the second nail hole 4 penetrates from the front side of the right surface of the first support plate 3 to the rear side of the left surface of the first support plate 3.
similarly, for the third nail hole 6, since the second support plate 5 has the same structure as the first support plate 3, the third nail hole 6 is arranged in the same manner as the second nail hole 4, i.e. the third nail hole 6 penetrates the second support plate 4 at an angle. Specifically, an included angle beta is formed between the axial direction of the third nail hole 6 and the thickness direction of the second support plate 5, and the included angle beta is in an angle range of 0-90 degrees (excluding 90 degrees). When the included angle beta is 0 degree, the axial direction of the third nail hole 6 is parallel to the thickness direction of the second support plate 5; when the included angle beta is larger than 0 degrees and smaller than 90 degrees, the third nail hole 6 penetrates from the front side of the left surface of the second support plate 3 to the rear side of the right surface of the second support plate 5.
in this embodiment, the included angle β is preferably greater than 0 ° and less than 45 °; more preferably, the included angle β is greater than 10 ° and less than 35 °.
The base plate 1, the first and second brackets 3 and 5, and the first and second connecting means 7 and 8 for connection are all made by a 3D printing method. Specifically, the base plate 1, the first support plate 3 and the second support plate 5 are designed according to pathological images (such as an X-ray image, a virtual image or a CT image) of a patient, so that the upper surface (i.e., a contact surface with lumbar vertebra) of the base plate 1 forms an uneven surface tightly attached to the lumbar vertebra after an operation, the left surface (i.e., a contact surface with ilium) of the first support plate 3 forms an uneven surface tightly attached to the ilium after the operation, and the right surface (i.e., a contact surface with the ilium) of the second support plate 5 forms an uneven surface tightly attached to the ilium after the operation.
further, the bottom plate 1, the first support plate 3, the second support plate 5, the first connecting means 7 and the second connecting means 8 are made of a metal material, such as titanium metal or titanium alloy or stainless steel.
Further, as shown in fig. 4, the novel full sacral prosthesis of the present invention further comprises a first guide plate 11 and a second guide plate 12, the first guide plate 11 is disposed at the left side of the first support plate 3 for connecting with the iliac ala; the second guide plate 12 is arranged at the right side of the second support plate 5 and is used for connecting with the iliac wing.
the first guide plate 11 and the second guide plate 12 are J-shaped and are attached to the iliac wing.
as shown in fig. 5, the method of use of this embodiment is as follows: in a tumor region, after completely cutting off the sacrum, cutting off the ilia on the left side and the right side of the lumbar vertebra, after cutting off the ilia with a certain thickness, respectively connecting a first guide plate 11 and a second guide plate 12 with the ilia on the left side and the right side of the lumbar vertebra through screws; aligning the upper surface of the base plate 1 with the lumbar vertebra, aligning the left surface of the first support plate 2 with the ilium on one side of the lumbar vertebra, and aligning the right surface of the second support plate 3 with the ilium on the other side of the lumbar vertebra; the bottom plate 1 is connected with the lumbar vertebra through a first nail hole 2 by using a first spongy nail 13, the first support plate 3 is connected with the ilium on one side of the lumbar vertebra through a first second nail hole 4 by using a second spongy nail 13, and the second support plate 5 is connected with the ilium on the other side of the lumbar vertebra through a first third nail hole 6 by using a third spongy nail 13; then the first locking nail 14 is used for connecting the bottom plate 1 with the lumbar through the second first nail hole 2 and locking the position of the bottom plate 1; the first support plate 3 is connected with the ilium on one side of the lumbar by using second and third locking nails 14 through second nail holes 4 positioned at the upper and lower sides of the first second nail hole 4, and the position of the first support plate 3 is locked; the fourth and fifth locking nails 14 are used for connecting the second support plate 5 with the ilium on the other side of the lumbar vertebra through the third nail holes 6 positioned at the upper and lower sides of the first third nail hole 6, and the position of the second support plate 5 is locked; finally, the first gimbal device 9 and the second gimbal device 10 are adjusted, and then a formed nail rod 15 is connected with the first gimbal device 9, and another formed nail rod 15 is connected with the second gimbal device 10.
The utility model has the advantages that the utility model can be adjusted adaptively according to the body type of the patient, and is suitable for the bone defect after the complete resection of different sacrums; the bone contact surfaces of the bottom plate, the first support plate and the second support plate are printed with a bone trabecular structure through 3D, so that the fitting between the prosthesis and the bone is improved, and the growth of the bone contact surface of the prosthesis is facilitated; the novel full sacrum prosthesis has small size and volume, reserves a large amount of bone grafting space, and can improve the long-term stability and survival rate of the prosthesis through bone grafting operation.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (10)
1. A novel full sacral prosthesis, comprising:
the bottom plate (1), the bottom plate (1) comprises a first nail hole (2), and the first nail hole (2) penetrates through the upper surface and the lower surface of the bottom plate (1);
the first support plate (3) comprises a second nail hole (4), the second nail hole (4) penetrates through the left surface and the right surface of the first support plate (3), and the second nail hole (4) is arranged along the length direction of the first support plate (3);
The second support plate (5) comprises a third nail hole (6), the third nail hole (6) penetrates through the left surface and the right surface of the second support plate (5), and the third nail hole (6) is arranged along the length direction of the second support plate (5);
The first support plate (3) and the second support plate (5) are arranged oppositely, and the first support plate (3) and the second support plate (5) are respectively arranged on the left side and the right side of the bottom plate (1);
The bottom plate (1), the first support plate (3) and the second support plate (5) are arranged in an inverted V shape;
a first connecting device (7), by means of which the first strip (3) and the base plate (1) are connected;
a second connecting device (8), by means of which the second strip (5) and the base plate (1) are connected;
the first universal device (9), the first universal device (9) is connected with the first support plate (3), and the first universal device (9) is arranged on one side of the first support plate (3) close to the second support plate (5);
the second universal device (10), the second universal device (10) is connected with the second support plate (5), and the second universal device (10) is arranged on one side, close to the first support plate (3), of the second support plate (5);
The first universal device (9) and the second universal device (10) are arranged oppositely.
2. the new total sacral prosthesis according to claim 1, characterized in that said first connecting means (7) and said second connecting means (8) are "J" -shaped.
3. The new total sacral prosthesis according to claim 1, wherein said first plate (3) is located on the anterior side, to the lower left of said base plate (1);
The second support plate (5) is positioned on the front side of the right lower part of the bottom plate (1).
4. The new holosacral prosthesis according to claim 1, characterized in that the length direction of said base plate (1) is parallel to the X-axis;
The length direction of the first support plate (3) is parallel to the Y axis;
The length direction of the second support plate (5) is parallel to the Y axis.
5. The new total sacral prosthesis according to claim 1, characterized in that said first nail holes (2) are at least two, said first nail holes (2) being arranged along the length direction of said base plate (1);
the number of the second nail holes (4) is at least two;
The number of the third nail holes (6) is at least two.
6. The new holosacral prosthesis according to claim 5, characterized in that each of said first nail holes (2) forms a different angle with said base plate (1); and/or
The included angle formed by each second nail hole (4) and the first support plate (3) is different; and/or
The included angle formed by each third nail hole (6) and the second support plate (5) is different.
7. The new holosacral prosthesis according to claim 1, characterized in that said first universal device (9) is arranged in a "+" -shape;
the second universal device (10) is arranged in a 'Brilliant' shape.
8. the novel full sacral prosthesis of claim 1 further comprising:
A first guide plate (11), the first guide plate (11) being arranged on the left side of the first support plate (3);
A second guide plate (12), the second guide plate (12) being arranged on the right side of the second support plate (5).
9. the new full sacral prosthesis according to claim 1, characterized in that said base plate (1), said first plate (3), said second plate (5), said first connecting means (7) and said second connecting means (8) are integrated by means of a 3D printing process.
10. The new full sacral prosthesis according to claim 1, characterized by the fact that the upper surface of said base plate (1), the left surface of said first plate (3) and the right surface of said second plate (5) are rugged surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821635111.XU CN209790100U (en) | 2018-10-09 | 2018-10-09 | novel full sacrum prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821635111.XU CN209790100U (en) | 2018-10-09 | 2018-10-09 | novel full sacrum prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209790100U true CN209790100U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821635111.XU Expired - Fee Related CN209790100U (en) | 2018-10-09 | 2018-10-09 | novel full sacrum prosthesis |
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| CN (1) | CN209790100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109259904A (en) * | 2018-10-09 | 2019-01-25 | 上海市第人民医院 | A kind of full sacral prosthesis |
| CN109259904B (en) * | 2018-10-09 | 2024-06-28 | 上海市第一人民医院 | Full sacrum prosthesis |
-
2018
- 2018-10-09 CN CN201821635111.XU patent/CN209790100U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109259904A (en) * | 2018-10-09 | 2019-01-25 | 上海市第人民医院 | A kind of full sacral prosthesis |
| CN109259904B (en) * | 2018-10-09 | 2024-06-28 | 上海市第一人民医院 | Full sacrum prosthesis |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 Termination date: 20201009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |