CN208958415U - A kind of centrum prosthese that can be implanted into long section bone - Google Patents
A kind of centrum prosthese that can be implanted into long section bone Download PDFInfo
- Publication number
- CN208958415U CN208958415U CN201721036491.0U CN201721036491U CN208958415U CN 208958415 U CN208958415 U CN 208958415U CN 201721036491 U CN201721036491 U CN 201721036491U CN 208958415 U CN208958415 U CN 208958415U
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- CN
- China
- Prior art keywords
- centrum
- bone
- protection board
- pulp cavity
- cavity protection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a kind of centrum prosthese that can be implanted into long section bone; including the centrum main body with bone grafting slot; bone grafting slot is equipped with the opening port being put into for bone item; bone grafting slot cover plate has been removably installed on opening port; centrum main body is connected with pulp cavity protection board; pulp cavity protection board is mutually fixed by screw-rod fixed system with Human Physiology centrum, and the upper/lower terminal of centrum main body respectively further comprises soleplate and lower soleplate, and centrum main body is three-dimensional connected porous structure.The beneficial effects of the utility model are: can realize that the long section bone of implantation realizes the artificial vertebral body of Bony union at a specified future date with good postoperative Bone Ingrowth characteristic for substituting to compromised spine centrum.
Description
Technical field
The utility model relates to orthopaedics to be implanted into field, and the centrum that can be implanted into long section bone more specifically to one kind is false
Body.
Background technique
It, can since tumor of spine, tuberculosis and serious fracture often cause vertebral bodies destroyed in the treatment of human spine's disease
Spinal nerve can be caused to damage and have to implement Vertebrae resection, the backbone after vertebral resection need to rebuild its stability, manually
The appearance of vertebral body prosthesis art provides a kind of ideal method to treat such disease.For the first time from the last century 60's end
Since report vertebral tumor is cut off and substituted with prosthese, artificial vertebral body is clinically obtained as a kind of effective vertebral body replacements
It is widely applied.But show traditional artificial vertebral body in certain sides in clinical application and a series of Biomechanics test
Face still has some problems to be solved.
In the prior art, self using implantation or allosome osseous granules are in favor of postoperative Integrated implant, if but required replacing
The centrum segment changed is longer, then is difficult to obtain the self osseous granules of enough volumes, and is implanted into allogeneic osseous granules its is high
Cost also makes us being difficult to bear and limited source, this establishes complete Integrated implant in the length range of artificial vertebral body segment to subsequent
Bring extreme difficulties；Secondly, being the bone amount in guarantee center bone grafting hole, reduce the design area of artificial vertebral body or more soleplate,
There is the phenomenon that depression, to finally lose so that artificial vertebral body is fallen into the soleplate of hypocentrum in support degree deficiency
Ideal height.
Utility model content
The utility model overcomes deficiency in the prior art, provides a kind of centrum prosthese that can be implanted into long section bone,
For being substituted to compromised spine centrum, with good postoperative Bone Ingrowth characteristic to realize the artificial of Bony union at a specified future date
Centrum.
The purpose of this utility model is achieved by following technical proposals.
A kind of centrum prosthese that can be implanted into long section bone, including the centrum main body with bone grafting slot, the bone grafting slot is equipped with
For the opening port that bone item is put into, bone grafting slot cover plate is removably installed on the opening port, the centrum main body connection is set
There is pulp cavity protection board, the pulp cavity protection board is mutually fixed by screw-rod fixed system with Human Physiology centrum.
Further, the cross section of the centrum main body is U-shaped, and upper/lower terminal respectively further comprises soleplate and lower soleplate,
The centrum main body is three-dimensional connected porous structure.
Further, the bone grafting slot cover plate is smooth or three-dimensional connected porous structure.
Further, the pulp cavity protection board is monoblock type or more piece segmentation pulp cavity protection board.
Further, the unilateral or bilateral of the centrum main body is arranged in the pulp cavity protection board.
Further, the inner surface of the pulp cavity protection board is smooth surface, and the outer surface of the pulp cavity protection board is three-dimensional
Connected porous structure.
Further, the pulp cavity protection board be equipped with make the soft tissue inside and outside the pulp cavity protection board establish blood fortune and
Organize the inside and outside intercommunicating pore of connection.
Further, pulp cavity protection board hole location between the epicentral protovertebra of the correspondence Human Physiology is provided with out
Put formula recess.
Further, the screw-rod fixed system includes the longitudinal direction that the spinous process two sides of the Human Physiology centrum are arranged in
Pitman, the longitudinally connected stick are fixed on the pulp cavity protection board by hold-down bars locking mechanism, the Human Physiology vertebra
It is fixed between body and each longitudinally connected stick with pedicle screw.
Further, the centrum main body is equipped with interconnecting piece, and the screw-rod fixed system includes by the interconnecting piece
The lateral connection nail being connected between each longitudinally connected stick.
The utility model has the following beneficial effects:
1, the centrum prosthese of the utility model implantable bone item, which aims at, needs the patient for carrying out longer vertebra vertebral body prosthesis to set
Meter is carried out the filling occupy-place of centrum body interior using Fibula autograft bone item, centrum main body can be reached in the short period after surgery
Bone fusion in length range is stablized in favor of the long term of implantation material；
2, the centrum prosthese main body of the utility model implantable bone item is porous metal structure, is between each hole
It is interconnected；Its aperture of the hole of the porous metal structure is set as 150 μm~1000 μm, and the hole of these mutual connection can
The foundation of capilary is facilitated to merge with growing into for osteocyte；
3, the bone grafting slot in the centrum prosthese main body of the utility model implantable bone item is set as needed in centrum prosthese
Front, rear or side, can also be in forward and backward, side different parts Mixed Design bone grafting slot, to facilitate the reality of operation
It applies；
4, reinforce frame and reinforcing rib at the edge of bone grafting slot cover plate or internal be equipped with, it is ensured that bone grafting slot cover plate
Intensity；
5, bone grafting slot cover plate is designed to that smooth surface causes to rub to avoid to spinal cord endorchis towards the surface at rear
It wears wound；
6, pulp cavity protection board is equipped with inside and outside intercommunicating pore, and the soft tissue inside and outside pulp cavity protection board can be made to establish blood fortune
And tissue connection is formed to generate the effect mutually suspended in midair；
7, the centrum prosthese of the utility model implantable bone item, centrum prosthese main body, bone grafting slot cover plate, pulp cavity protection
Plate is all made of metal 3D printing technique manufacture, and manufacturing process is simple and quick, and being commonly designed production can complete in 24 hours, favorably
It is simultaneously fixed in early days in the timely operation of patient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of centrum main body；
Fig. 2 is the structural schematic diagram of three-dimensional connected porous structure pulp cavity protection board；
Fig. 3 is the structural schematic diagram of pulp cavity protection board reinforcing rib；
Fig. 4 is the structural schematic diagram of monoblock type pulp cavity protection board；
Fig. 5 is the structural schematic diagram of multistage segmentation pulp cavity protection board；
Fig. 6 is the structural schematic diagram of screw-rod fixed system；
Fig. 7 is 1 using process diagram of embodiment；
Fig. 8 is 1 use state diagram of embodiment；
Fig. 9 is the example structure schematic diagram for the side that centrum prosthese is arranged in bone grafting slot
In figure:
1, upper soleplate；2, lower soleplate；3, bone grafting slot；4, reinforce frame；5, bone grafting slot cover plate reinforcing rib；
6, three-dimensional connected porous structure；7, open recess；8, inside and outside intercommunicating pore；9, more piece segmentation pulp cavity protection board；
10, hold-down bars locking mechanism；11, longitudinally connected stick；12, centrum main body；13, pulp cavity protection board；
14, Human Physiology centrum；15, pedicle screw；16, bone item；17, bone grafting slot cover plate；18, screw；
19, opening port.
Specific embodiment
The technical solution of the utility model is further described below by specific embodiment.
Embodiment 1
As shown in figures 1-8, a kind of centrum prosthese that can be implanted into long section bone, including the centrum main body 12 with bone grafting slot 3,
Bone grafting slot 3 is equipped with the opening port 19 being put into for bone item, is removably covered with bone grafting slot cover plate 17, centrum master on opening port 19
Body 12 is connected with pulp cavity protection board 13, and pulp cavity protection board 13 is solid with 14 phase of Human Physiology centrum by screw-rod fixed system
It is fixed；
Bone grafting slot cover plate 17 is fixed in centrum main body 12 by screw 18；
Front, rear or the side of the centrum main body 12 of implantable bone item 16 is arranged in bone grafting slot 3, can also be according to need
It will be in the different parts Mixed Design bone grafting slot 3 of forward and backward side；Implantable bone item 16 can be derived from patient's fibula, by curing in art
The fibula section of taking-up is carried out the finishing of shape with specific purpose tool to be conveniently loaded the centrum main body of implantable bone item by shield personnel
On bone grafting slot 3 in；It is remote in favor of implantation material to reach the bone fusion in centrum main body length range in short period after surgery
Phase stablizes；Also it can choose and be implanted by processed long section allograph bone；Whole segment length bone is implanted directly into instead of previous
The implantation of bone meal solves the problems, such as that self osseous granules are insufficient, allosome osseous granules are expensive.
The upper/lower terminal of centrum main body 12 respectively further comprises soleplate 1 and lower soleplate 2, and centrum main body 12 is three-dimensional communication
Porous structure 6；Because being implanted directly into using entire bone item, upper soleplate 1, lower soleplate 2 can retain maximum area, while on
Soleplate 1, lower soleplate 2, bone item 16 can act as supporting role, and upper soleplate 1, lower soleplate 2 are that three-dimensional connected porous structure 6 exists
More conducively Bone Ingrowth while playing a supporting role enables the centrum prosthese of implantation to form more stable support
It is strong, the generation of depression phenomenon is avoided, good ideal height is kept.
Bone grafting slot cover plate 17 is smooth or three-dimensional connected porous structure 6, and the purpose of bone grafting slot cover plate 17 is by bone
Fixed be limited in bone grafting slot 3 of item 16 is arranged to prevent its displacement or abjection for the intensity for reinforcing bone grafting slot cover plate 17 on it
Have and reinforces frame 4 and bone grafting slot cover plate reinforcing rib 5；
The aperture design of three-dimensional connected porous structure 6 is 150 μm~1000 μm to be conducive to growing into for osteocyte；
When the rear of centrum main body 12 is arranged in bone grafting slot 3, if operation only removes the sclerotin portion of affected part centrum
Divide and continue to remain posterior longitudinal ligament, the three-dimensional connected porous structure 6 in bone grafting slot cover plate 17 can be thin for posterior longitudinal ligament at this time
Growing into property of born of the same parents combines and has reserved space and channel；
When the rear of centrum main body 12 is arranged in bone grafting slot 3, if operation by the bone parts of affected part centrum and after
Longitudinal ligament all removes, and bone grafting slot cover plate 17 is designed to smooth surface to avoid to spinal cord towards the surface at rear at this time
Endorchis causes frictionally damage；
As shown in figure 9, the bone grafting slot 3 in the centrum prosthese main body of the utility model implantable bone item is set as needed
Front, rear or the side of centrum prosthese, can also be in forward and backward, side different parts Mixed Design bone grafting slot 3, with convenient
The implementation of operation.
The unilateral or bilateral of centrum main body 12 is arranged in pulp cavity protection board 13；Pulp cavity protection board 13 will lose centrum protection
Spinal nerve go along with sb. to guard him including to avoid outside organization contact and intrusion；
Pulp cavity protection board 13 is entirety or more piece segmentation pulp cavity protection board 9；
The inner surface of pulp cavity protection board 13 is smooth surface, and the outer surface of pulp cavity protection board 13 is three-dimensional connected porous structure
6；16 inner surface of pulp cavity protection board is that the smooth surface of polishing causes frictionally damage, pulp cavity protection board to avoid to spinal cord endorchis
16 outer surfaces are provided with three-dimensional connected porous structure 6 in order to the attachment of surrounding soft tissue's cell and grow into increase pulp cavity protection
The stabilization of plate 13；
Pulp cavity protection board 13 is equipped with inside and outside intercommunicating pore 8, and the soft tissue inside and outside pulp cavity protection board 13 can be made to establish
Blood is transported and establishes tissue connection to generate the effect mutually suspended in midair；
Pulp cavity protection board 13 is provided with open recess 7 in intervertebral hole site on corresponding former Human Physiology centrum 14, open
Formula recess 7 gets out of the way nerve root.
The screw-rod fixed system includes the longitudinally connected stick 11 that 14 spinous process two sides of Human Physiology centrum are arranged in, and is indulged
It is fixed on pulp cavity protection board 13 to pitman 11 by hold-down bars locking mechanism 10, artificial vertebral body main body 14 and each longitudinally connected
It is further fixed between stick 11 with pedicle screw 15.
Its manufacturing process of the centrum prosthese of the utility model implantable bone item is:
1. being first depending on the medical 3 Ds such as CT or MRI of patient tomographic data and using interactive medical image control
System processed establishes the threedimensional model of patient site in a computer；
2. referring to the configuration of centrum prosthese of threedimensional model and operation plan design implantable bone item and each
The specific form of components；
3. the hole aperture threedimensional model of design porous metal structure；
4. reinforcement structure needed for designing each portion；
5. completed design document is input to direct printing shaping in metal 3D printing equipment, used metal material
Material is a variety of materials such as cobalt alloy, titanium alloy, medical stainless steel of human implantable etc.；
6. carrying out appropriate subsequent arrangement washing and sterilizing processing after the completion of printing can be used to perform the operation.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (9)
1. the centrum prosthese that one kind can be implanted into long section bone, it is characterised in that: including the centrum main body with bone grafting slot, the plant
Bone slot is equipped with the opening port being put into for bone item, has been removably installed bone grafting slot cover plate, the centrum master on the opening port
Body is connected with pulp cavity protection board, and the pulp cavity protection board is mutually fixed by screw-rod fixed system with Human Physiology centrum.
2. the centrum prosthese according to claim 1 that long section bone can be implanted into, it is characterised in that: the cross of the centrum main body
Section be it is U-shaped, upper/lower terminal respectively further comprises soleplate and lower soleplate, and the centrum main body is three-dimensional connected porous structure.
3. the centrum prosthese according to claim 1 that long section bone can be implanted into, it is characterised in that: the bone grafting slot cover plate
For smooth or three-dimensional connected porous structure.
4. the centrum prosthese according to claim 2 that long section bone can be implanted into, it is characterised in that: the pulp cavity protection board is
Monoblock type or more piece segmentation pulp cavity protection board.
5. the centrum prosthese according to claim 4 that long section bone can be implanted into, it is characterised in that: the pulp cavity protection board is set
Set the unilateral or bilateral in the centrum main body.
6. the centrum prosthese according to claim 5 that long section bone can be implanted into, it is characterised in that: the pulp cavity protection board
Inner surface is smooth surface, and the outer surface of the pulp cavity protection board is three-dimensional connected porous structure.
7. the centrum prosthese according to claim 6 that long section bone can be implanted into, it is characterised in that: on the pulp cavity protection board
The inside and outside intercommunicating pore of blood fortune and tissue connection is established equipped with the soft tissue made inside and outside the pulp cavity protection board.
8. the centrum prosthese according to claim 7 that long section bone can be implanted into, it is characterised in that: the pulp cavity protection board exists
Hole location is provided with open recess between the corresponding epicentral protovertebra of Human Physiology.
9. the centrum prosthese according to claim 1 that long section bone can be implanted into, it is characterised in that: the screw-rod is fixed
System includes the longitudinally connected stick that the spinous process two sides of the Human Physiology centrum are arranged in, and the longitudinally connected stick passes through hold-down bars
Locking mechanism is fixed on the pulp cavity protection board, uses pedicle of vertebral arch between the Human Physiology centrum and each longitudinally connected stick
Screw is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721036491.0U CN208958415U (en) | 2017-08-18 | 2017-08-18 | A kind of centrum prosthese that can be implanted into long section bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721036491.0U CN208958415U (en) | 2017-08-18 | 2017-08-18 | A kind of centrum prosthese that can be implanted into long section bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208958415U true CN208958415U (en) | 2019-06-11 |
Family
ID=66745969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721036491.0U Withdrawn - After Issue CN208958415U (en) | 2017-08-18 | 2017-08-18 | A kind of centrum prosthese that can be implanted into long section bone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208958415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569309A (en) * | 2017-08-18 | 2018-01-12 | 北京爱康宜诚医疗器材有限公司 | A kind of centrum prosthese that can be implanted into long section bone |
-
2017
- 2017-08-18 CN CN201721036491.0U patent/CN208958415U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569309A (en) * | 2017-08-18 | 2018-01-12 | 北京爱康宜诚医疗器材有限公司 | A kind of centrum prosthese that can be implanted into long section bone |
| CN107569309B (en) * | 2017-08-18 | 2023-08-22 | 北京爱康宜诚医疗器材有限公司 | Vertebral prosthesis capable of being implanted into long bone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190611 Effective date of abandoning: 20230822 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190611 Effective date of abandoning: 20230822 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |