CN209645142U - Homogeneous allogenic bone bone grafting body and bone grafting instrument for nail hole and osteochondral defect - Google Patents
Homogeneous allogenic bone bone grafting body and bone grafting instrument for nail hole and osteochondral defect Download PDFInfo
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- CN209645142U CN209645142U CN201721496211.4U CN201721496211U CN209645142U CN 209645142 U CN209645142 U CN 209645142U CN 201721496211 U CN201721496211 U CN 201721496211U CN 209645142 U CN209645142 U CN 209645142U
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Abstract
The utility model discloses a kind of homogeneous allogenic bone bone grafting bodies and bone grafting instrument for nail hole and osteochondral defect, the bone grafting body is the cylindrical structure made by homogeneous allogenic bone, the diameter and height of the bone grafting body are consistent with the diameter and height of nail hole bone defect chamber or osteochondral defect chamber, and the bone grafting body is implanted in nail hole bone defect chamber or osteochondral defect is intracavitary.The utility model can form new bone by osteoacusis skeletonization and certain induced osteogenesis, promote the immediate union of nail hole and osteochondral defect and prevent fracture.
Description
Technical field
The utility model belongs to medical bio implantation material and the field of medical instrument technology, and in particular to one kind is used for nail hole
With the homogeneous allogenic bone bone grafting body and bone grafting instrument of osteochondral defect, it (consolidates suitable for Osteosynthetic implants bone surgery in bone
Determine instrument) metal bone nail take out after the bone defect of screw way, osteochondral defect bone grafting reparation.
Background technique
Currently, Osteosynthetic implants metal bone nail forms nail hole after taking out in bone surgery, cause local mechanics strong
Degree declines and has the risk of fracture.
For being related to the traumatic bone cartilage defect and degeneration of joint's osteochondral defect of articular surface, articular cartilage from
My repair ability is limited, is unable to get reparation once destroying.Currently, treating due to a lack of good method, many patients cannot be connect
It is treated.Only a few doctor is using a small amount of bone repair of cartilage osteochondral defect of the self fossa intercondylaris femoris of patient is cut, and autologous bone is not
The defects of limited, area Qu Gu complication of only drawing materials.
Utility model content
The purpose of this utility model is to provide a kind of homogeneous allogenic bone bone grafting body for nail hole and osteochondral defect and
Bone grafting instrument, it can form new bone by osteoacusis skeletonization and certain induced osteogenesis, promote the early stage of nail hole and osteochondral defect
It heals and prevents fracture.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of homogeneous allogenic bone bone grafting body for nail hole and osteochondral defect, the bone grafting body are to be made by homogeneous allogenic bone
Cylindrical structure, the diameter and highly one of the diameter of the bone grafting body and height and nail hole bone defect chamber or osteochondral defect chamber
It causes, the bone grafting body is implanted in nail hole bone defect chamber or osteochondral defect is intracavitary.
According to the above technical scheme, the bone grafting body be first by homogeneous allogenic bone be processed into cylindrical body using remove marrow,
The inducible freeze-drying decalcification cylindrical structure that degreasing, de- cell, decalcification, extreme trace cleaning, freeze drying process are prepared into.
According to the above technical scheme, the diameter of the bone grafting body is less than 15mm.
According to the above technical scheme, the height of the bone grafting body is less than 15mm.
According to the above technical scheme, the bone grafting body is the bone grafting body for having extrudability and elasticity after rehydration.
According to the above technical scheme, the material of the bone grafting body is cancellous bone or cortex bone.
A kind of bone grafting instrument, it is described including hollow positioning pipe and the implantation push rod being slidably arranged in the positioning pipe
The rear end of positioning pipe offers the opening that can be put into above-mentioned homogeneous allogenic bone bone grafting body, and the implantation push rod will be for that will pass through opening
The front end of positioning pipe is pushed into the bone grafting body in positioning pipe cavity and then enters nail hole bone defect chamber or osteochondral defect chamber
It is interior.
According to the above technical scheme, which further includes the locking nut being arranged in outside the positioning pipe rear end, the lock
Tight nut is threadedly coupled with the rear end of positioning pipe, and catching step is equipped in the locking nut, and the front end of the implantation push rod is set
There is the limited step to lean with the catching step.
According to the above technical scheme, the bone grafting instrument further includes the handle that the positioning pipe rear end is arranged in.
The utility model generate beneficial effect be: bone grafting system is made cylindrical structure by the utility model, make its with
The size of nail hole bone defect chamber or osteochondral defect chamber is consistent, be implanted into nail hole bone defect it is intracavitary after, can by osteoacusis at
Bone and certain induced osteogenesis form new bone, promote the immediate union of nail hole bone defect and prevent fracture；It is implanted into bone
After cartilage defect is intracavitary, bone grafting body part corresponding with cancellous bone under cartilage can be formed new bone by osteoacusis and be healed, and soft
The corresponding part of bone because by articular surface it is movable stimulation and influence, fibrocartilage will be formed, makes remission, obtain partial function
It repairs.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the structural schematic diagram of bone grafting body in the utility model embodiment；
Fig. 2 is the structural schematic diagram of bone grafting instrument in the utility model embodiment；
Fig. 3 is the cross-sectional view of bone grafting instrument in the utility model embodiment；
Fig. 4 is the structural schematic diagram of medical bathometer in the utility model embodiment.
In figure: 100- bone grafting body, 201- positioning pipe, 202- locking nut, 203- handle, 204- opening, 205- implantation push away
Bar.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As shown in Figure 1, a kind of homogeneous allogenic bone bone grafting body for nail hole and osteochondral defect, which is by of the same race
The cylindrical structure of allograph bone production, the diameter of bone grafting body and highly with the diameter of nail hole bone defect chamber or osteochondral defect chamber and
Height is consistent, and bone grafting body is implanted in nail hole bone defect chamber or osteochondral defect is intracavitary.
In the preferred embodiment of the utility model, bone grafting body is that homogeneous allogenic bone is first processed into cylindrical body using clear
The inducible freeze-drying decalcification cylindrical body being prepared into except marrow, degreasing, de- cell, decalcification, extreme trace cleaning, freeze drying process
Structure.
In the preferred embodiment of the utility model, the diameter of bone grafting body is less than 15mm, and the height of bone grafting body is less than 15mm.
In the preferred embodiment of the utility model, bone grafting body is the bone grafting for having extrudability and elasticity after rehydration
Body.
In the preferred embodiment of the utility model, the material of bone grafting body is cancellous bone or cortex bone.
A kind of bone grafting instrument including hollow positioning pipe 201 and is slidably arranged in positioning pipe 201 as shown in Figure 2 and Figure 3
Implantation push rod 205, the rear end of positioning pipe 201 offers the opening 204 that can be put into above-mentioned bone grafting body 100, and implantation push rod 205 is used
In by by be open enter positioning pipe cavity in bone grafting body push to positioning pipe front end enter nail hole bone defect chamber or
Osteochondral defect is intracavitary.
In the preferred embodiment of the utility model, as shown in Figure 2 and Figure 3, which further includes being arranged in positioning pipe
Locking nut 202 outside 201 rear ends, locking nut 202 are threadedly coupled with the rear end of positioning pipe 201, are equipped in locking nut 202
The front end of catching step, implantation push rod 205 is equipped with the limited step to lean with catching step, for preventing implantation push rod from calmly
Position pipe rear end skids off.
In the preferred embodiment of the utility model, as shown in Figure 2 and Figure 3, bone grafting instrument further includes being arranged in positioning pipe rear end
Handle 203.
The utility model uses homogeneous allogenic bone as raw material (cancellous bone, cortex bone), takes bone tool will with dedicated
Bone cuts as various sizes of cylindrical body, and by removing marrow, prepared by degreasing, de- cell, decalcification, extreme trace cleaning, freeze-drying
At inducible freeze-drying decalcification cylindrical body bone block, it is set to restore centainly extrudable character by rehydration when in use.
When the utility model is applied to the filling of nail hole bone defect, strictly by Osteosynthetic implants metal bone nail in bone surgery
Diameter (such as HA3.5, HA4.5, HA6.5 bottom diameter) processes the bone grafting body of same specification, it is ensured that the shape of bone grafting body with fill out
It is consistent to fill chamber, bone grafting body is prepared into inducible by removing marrow, degreasing, de- cell, decalcification, extreme trace cleaning, freeze-drying
It is freeze-dried decalcification cylindrical body bone block；With dedicated filling tool, precisely implantation to predetermined position.
Osteosynthetic implants (internal fixation device tool) bone nail forms nail hole bone defect chamber after taking out, when which is implanted into,
Bone grafting site depth is measured with medical bathometer as shown in Figure 4 first, and determines bone grafting block specifications (diameter D × height H), choosing
It selects and meets the bone grafting body that implantation requires；By shown in Fig. 2, Fig. 3, bone grafting body is precisely implanted into predetermined position with bone grafting instrument, will be determined
Position pipe 201 is placed in bone grafting site depth (press 1 scale of positioning pipe), adds bone grafting body 100 in opening 204, holding hand-held handle
203, implantation push rod 205 is pushed, bone grafting body is pushed into predetermined position through opening, positioning pipe.Bone grafting body can pass through osteoacusis skeletonization
New bone is formed with certain induced osteogenesis, promote the immediate union of nail hole bone defect and prevents fracture.
When the utility model is applied to osteochondral defect, osteochondral defect position is carried out to be trimmed to the filling of specification cylinder
Chamber, it is ensured that filling bone block shape is consistent with filled cavity, in small bone articular cartilage defect (in 15mm), by osteochondral defect
Pore-creating is diameter < 15mm and depth < 15mm cylindrical body bone defect chamber, the bone grafting body of preprocessing same specification, homogeneous allogenic bone warp
Cross that removing marrow, degreasing, de- cell, decalcification, extreme trace cleaning, freeze-drying is prepared into can induce freeze-drying decalcification cylindrical body bone
Block；When clinical application, osteochondral defect position is carried out to be trimmed to specification cylinder filled cavity, it is ensured that fill bone block shape and fill out
It is consistent to fill chamber；Under arthroscope or when open surgery, precisely implantation to predetermined position.By the freeze-drying decalcification of dimension
After the implantation of cylindrical body bone grafting body, the bone grafting body of implantation part corresponding with cancellous bone under cartilage can form new bone by osteoacusis
Healing, part corresponding with cartilage because by articular surface it is movable stimulate and influence, fibrocartilage will be formed, makes remission, obtained
To partial function reparation.
The bone grafting body provided in the utility model, product shape simply, with special-purpose taking bone object feeding, avoid original
To need the trouble and raw material losses of machine tooling.The product after processing using when rehydration after have certain extrudability and bullet
Property, it is embedded after conveniently filling in bone defect nail hole.Homogeneous allogenic bone has self-bone grafting and bone after the process of the patent
Osteoconduction ability makes bone defect healing, does not induce immunological rejection symptom.Mating bone grafting instrument, can it is minimally invasive under the conditions of by product
Implantation.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (8)
1. a kind of homogeneous allogenic bone bone grafting body for nail hole and osteochondral defect, which is characterized in that the bone grafting body is by of the same race
The cylindrical structure of allograph bone production, the diameter of the bone grafting body and highly straight with nail hole bone defect chamber or osteochondral defect chamber
Diameter is consistent with height, and the bone grafting body is implanted in nail hole bone defect chamber or osteochondral defect is intracavitary.
2. the homogeneous allogenic bone bone grafting body according to claim 1 for nail hole and osteochondral defect, which is characterized in that institute
The diameter for stating bone grafting body is less than 15mm.
3. the homogeneous allogenic bone bone grafting body according to claim 1 for nail hole and osteochondral defect, which is characterized in that institute
The height for stating bone grafting body is less than 15mm.
4. the homogeneous allogenic bone bone grafting body according to claim 1 for nail hole and osteochondral defect, which is characterized in that institute
Stating bone grafting body is the bone grafting body for having extrudability and elasticity after rehydration.
5. the homogeneous allogenic bone bone grafting body according to claim 1 for nail hole and osteochondral defect, which is characterized in that institute
The material for stating bone grafting body is cancellous bone or cortex bone.
6. a kind of bone grafting instrument, which is characterized in that including hollow positioning pipe and the implantation being slidably arranged in the positioning pipe
Push rod, the rear end of the positioning pipe, which offers, can be put into opening for homogeneous allogenic bone bone grafting body described in any one of claim 1-5
Mouthful, the implantation push rod be used for by by the bone grafting body entered in positioning pipe cavity that is open push to the front end of positioning pipe into
Enter nail hole bone defect chamber or osteochondral defect is intracavitary.
7. bone grafting instrument according to claim 6, which is characterized in that the bone grafting instrument further includes being arranged in the positioning pipe rear end
Outer locking nut, the locking nut are threadedly coupled with the rear end of positioning pipe, and catching step, institute are equipped in the locking nut
The front end for stating implantation push rod is equipped with the limited step to lean with the catching step.
8. bone grafting instrument according to claim 6, which is characterized in that the bone grafting instrument further includes being arranged in the positioning pipe rear end
Handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721496211.4U CN209645142U (en) | 2017-11-10 | 2017-11-10 | Homogeneous allogenic bone bone grafting body and bone grafting instrument for nail hole and osteochondral defect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721496211.4U CN209645142U (en) | 2017-11-10 | 2017-11-10 | Homogeneous allogenic bone bone grafting body and bone grafting instrument for nail hole and osteochondral defect |
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| CN209645142U true CN209645142U (en) | 2019-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111870401A (en) * | 2020-09-07 | 2020-11-03 | 中山市中医院 | Instrument for implanting bone under facet arthroscope |
-
2017
- 2017-11-10 CN CN201721496211.4U patent/CN209645142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111870401A (en) * | 2020-09-07 | 2020-11-03 | 中山市中医院 | Instrument for implanting bone under facet arthroscope |
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