CN211325515U - Intervertebral bone grafting device - Google Patents
Intervertebral bone grafting device Download PDFInfo
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- CN211325515U CN211325515U CN201921454106.3U CN201921454106U CN211325515U CN 211325515 U CN211325515 U CN 211325515U CN 201921454106 U CN201921454106 U CN 201921454106U CN 211325515 U CN211325515 U CN 211325515U
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- bone grafting
- push rod
- installation pipeline
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Abstract
The utility model relates to an intervertebral bone grafting device, including pre-installation pipeline and bone grafting stick, the pre-installation pipeline is the cavity pipeline, and the pre-installation pipeline is used for holding bone grafting material, and bone grafting stick includes the push rod, limit deep portion and handle, limit deep portion sets up between push rod and handle, and the diameter of push rod is less than the internal diameter of pre-installation pipeline, and the diameter of limit deep portion is greater than the internal diameter of pre-installation pipeline, and the length of push rod is greater than the length of pre-installation pipeline. The intervertebral bone grafting device of the utility model is convenient to implant, and broken bone blocks can not be left in the vertebral canal to damage or nerve roots; the one-time use avoids deep infection in the bone grafting process; can save a large amount of bone grafting time in the operation, and autologous, broken bone tissue can also be packed into the used cannula in the operation, has the same convenience.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to intervertebral bone grafting device.
Background
Lumbar fusion is the first choice for treating degenerative lumbar diseases generally accepted by spine surgeons at home and abroad in recent years. The interbody fusion is widely applied to treat degenerative diseases of the lumbar spondylolisthesis, lumbar spinal stenosis and instability of the isosceles vertebra at present. The lumbar fusion method mainly comprises the following steps: PLIF, TILF, OLIF, etc. When lumbar fusion is carried out for treatment, an intervertebral bone grafting device is needed, but the existing various intervertebral bone grafting devices have respective defects, which are mainly reflected in the aspects of low bone grafting efficiency, nerve damage in the operation, difficult bone grafting quantification, increased iatrogenic infection rate and the like. Therefore, in order to more advantageously perform intervertebral bone grafting and fusion, an intervertebral bone grafting device which is convenient to implant, saves operation time and reduces pollution and nerve damage in the operation process needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve prior art's problem, provide one kind and plant the convenience, operation efficiency is higher, avoids neural injury's intervertebral bone grafting device.
The specific technical scheme is as follows: the utility model provides an intervertebral bone grafting device, includes the pre-installation pipeline and plants the bone stick, and the pre-installation pipeline is cavity pipeline, and the pre-installation pipeline is used for holding the bone grafting material, plants the bone stick and includes push rod, limit deep portion and handle, limit deep portion sets up between push rod and handle, and the diameter of push rod is less than the internal diameter of pre-installation pipeline, and the diameter of limit deep portion is greater than the internal diameter of pre-installation pipeline, the length of push rod is greater than the length of pre-installation pipeline.
The following is the attached technical proposal of the utility model.
Further, the pre-filled tube is made of transparent or translucent medical plastic.
Further, the diameter of the pre-filled pipe is 5mm-7 mm.
Further, the thickness of the pipe wall of the pre-installed pipeline is 1mm-1.5 mm.
Furthermore, the length of the push rod is 10-15 mm longer than that of the pre-installed pipeline.
Further, the diameter of the handle is larger than that of the push rod.
The technical effects of the utility model: the intervertebral bone grafting device of the utility model is convenient to implant, and broken bone blocks can not be left in the vertebral canal to damage or nerve roots; the one-time use avoids deep infection in the bone grafting process; can save a large amount of bone grafting time in the operation, and autologous, broken bone tissue can also be packed into the used cannula in the operation, has the same convenience.
Drawings
Fig. 1 is a schematic view illustrating an intervertebral bone grafting device according to an embodiment of the present invention in use.
Fig. 2 is another view of an intervertebral bone grafting device according to an embodiment of the present invention.
Detailed Description
The essential features and advantages of the invention will be further explained below with reference to examples, but the invention is not limited to the embodiments listed.
As shown in fig. 1 and 2, the intervertebral bone grafting device of the present embodiment includes a pre-installed tube 1 and a bone grafting rod 2, the pre-installed tube 1 is a hollow tube, and the pre-installed tube 1 is used for containing a bone grafting material 3. The bone grafting rod 2 comprises a push rod 21, a depth limiting part 22 and a handle 23, wherein the depth limiting part 22 is arranged between the push rod 21 and the handle 23, the diameter of the push rod 21 is smaller than the inner diameter of the pre-filled pipeline 1, and the diameter of the depth limiting part 22 is larger than the inner diameter of the pre-filled pipeline 1. The length of the push rod 21 is greater than the length of the pre-filled conduit 1. The intervertebral bone grafting device of the technical proposal has the following principle: the method comprises the steps of pre-filling a columnar pre-installed pipeline 1 with a self-heterotypic bone or other bone grafting materials to be implanted into an intervertebral space, placing the pre-installed pipeline 1 into the bone grafting space, and then pushing the bone grafting materials into the bone grafting space through a bone grafting rod 2 along the pre-installed pipeline. Through above-mentioned technical scheme, can be convenient for plant the implantation of bone material, autologous in the art, garrulous bone tissue also can pack into used pre-installation pipeline, can not have garrulous bone piece to omit damage or damage nerve root in the canalis spinalis, can practice thrift the bone grafting time in a large amount of operations. In the embodiment, the bone grafting material comprises allogenic bone, allogenic bone and other substitute materials capable of being used for bone grafting, the bone grafting amount is recommended to be 2-4 g/tube, and the bone grafting is subjected to radiation sterilization or ethylene oxide sterilization in the operation. The length of the push rod, which is larger than the length of the preassembly pipeline, is the pushing length L.
In this embodiment, the pre-installed tube 1 is made of transparent or translucent medical plastic, so that the bone grafting process is visualized, and nerve root damage is avoided.
In this embodiment, the diameter of the pre-installed pipeline 1 is 5mm to 7mm, the thickness of the pipe wall of the pre-installed pipeline 1 is 1mm to 1.5mm, and the length of the pre-installed pipeline can be customized according to specific requirements.
In this embodiment, the length of the push rod 21 is 10mm-15mm longer than that of the pre-installed pipe 1, so that the push rod 21 can completely insert bone grafting materials into the bone grafting gap.
In this embodiment, the handle 23 has a diameter larger than that of the push rod 21, so that the user can hold the bone grafting rod 1 conveniently.
The intervertebral bone grafting device of this embodiment is through disposable medical aseptic outer packaging material packing, and bone grafting in-process deep infection is avoided in disposable.
Now, taking lumbar interbody fusion (TILF) as an example, the application of the intervertebral bone grafting device of the present embodiment is specifically described as follows:
conventionally exposing, probing nerve roots on one side of a target intervertebral space, and protecting with brain cotton; cutting off part of the fibrous ring and protruding nucleus pulposus; cleaning residual intervertebral discs and cartilage plates; after thorough cleaning, measuring the intervertebral space height; after the external package of the device is removed, the device is soaked in normal saline for 5 to 10 minutes; when in use, one end of the bone grafting rod is aligned with the bone grafting hole, and the other end of the bone grafting rod is pushed down rapidly until reaching the depth limiting position; repeatedly implanting the bone according to the intervertebral space requirement.
The intervertebral bone grafting device is convenient to implant, and broken bone blocks cannot be missed into a vertebral canal to damage or nerve roots; the one-time use avoids deep infection in the bone grafting process; can save a large amount of bone grafting time in the operation, and autologous, broken bone tissue can also be packed into the used cannula in the operation, has the same convenience.
It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides an intervertebral bone grafting device, its characterized in that includes the pre-installation pipeline and plants the bone stick, and the pre-installation pipeline is cavity pipeline, and the pre-installation pipeline is used for holding the bone grafting material, and the bone stick of planting includes push rod, limit deep portion and handle, limit deep portion sets up between push rod and handle, and the diameter of push rod is less than the internal diameter of pre-installation pipeline, and the diameter of limit deep portion is greater than the internal diameter of pre-installation pipeline, the length of push rod is greater than the length of pre-installation pipeline.
2. The intervertebral bone grafting device of claim 1, wherein the pre-filled conduit is made of a transparent or translucent medical plastic.
3. The intervertebral bone grafting device of claim 1, wherein the diameter of the pre-filled conduit is 5mm to 7 mm.
4. The intervertebral bone grafting device of claim 1, wherein the wall thickness of the pre-filled conduit is 1mm to 1.5 mm.
5. The intervertebral bone grafting device of claim 1, wherein the length of the push rod is 10mm to 15mm longer than the length of the pre-filled conduit.
6. The intervertebral bone grafting device of claim 1, wherein the handle has a diameter greater than a diameter of the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921454106.3U CN211325515U (en) | 2019-09-03 | 2019-09-03 | Intervertebral bone grafting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921454106.3U CN211325515U (en) | 2019-09-03 | 2019-09-03 | Intervertebral bone grafting device |
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| Publication Number | Publication Date |
|---|---|
| CN211325515U true CN211325515U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921454106.3U Active CN211325515U (en) | 2019-09-03 | 2019-09-03 | Intervertebral bone grafting device |
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| CN (1) | CN211325515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112244984A (en) * | 2020-11-05 | 2021-01-22 | 孙金堂 | Visual bone grafting device |
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2019
- 2019-09-03 CN CN201921454106.3U patent/CN211325515U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112244984A (en) * | 2020-11-05 | 2021-01-22 | 孙金堂 | Visual bone grafting device |
| CN112244984B (en) * | 2020-11-05 | 2022-04-08 | 孙金堂 | Visual bone grafting device |
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