CN203208108U - Medical degradable absorption magnesium alloy bone nail and matching tool - Google Patents
Medical degradable absorption magnesium alloy bone nail and matching tool Download PDFInfo
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- CN203208108U CN203208108U CN 201320177393 CN201320177393U CN203208108U CN 203208108 U CN203208108 U CN 203208108U CN 201320177393 CN201320177393 CN 201320177393 CN 201320177393 U CN201320177393 U CN 201320177393U CN 203208108 U CN203208108 U CN 203208108U
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- magnesium alloy
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- bone nail
- nail
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Abstract
The utility model discloses a medical degradable absorption magnesium alloy bone nail and a matching tool. The medical degradable absorption magnesium alloy bone nail comprises a magnesium alloy threaded bone nail body and a screwdriver rod matched with the magnesium alloy threaded bone nail body for use. Two or more pin holes are formed in the end face of the head of the magnesium alloy threaded bone nail body in an equal mode, a screwdriver blade which is provided with nail pins and corresponds to the pins holes in the head of the magnesium alloy threaded bone nail body is internally connected to an inner hexagonal hole formed in the end of the screwdriver rod matched with the magnesium alloy threaded bone nail body for use, and the pin holes formed in the end face of the head of the magnesium alloy threaded bone nail body in the equal mode meet blind holes of the inserted depths of the nail pins. According to the medical degradable absorption magnesium alloy bone nail, the screwdriver blade which is provided with the nail pins and corresponds to the pins holes in the head of the magnesium alloy threaded bone nail body is internally connected to the inner hexagonal hole formed in the end of the screwdriver rod matched with the magnesium alloy threaded bone nail body for use so as to rotate the magnesium alloy threaded bone nail body, the nail pins which correspond to the screwdriver blade and are inserted into the pin holes in the end face of the head of the magnesium alloy threaded bone nail body are balanced in stress, and therefore in the process that the magnesium alloy bone nail body is rotated into the bone, the phenomenon that the nail pins can not be twisted due to the fact that the pin holes in the head of the magnesium alloy threaded bone nail body are damaged can not occur.
Description
Technical field
This utility model belongs to the biologic medical instrument field, relates to the orthopaedics internal fixation medical apparatus and instruments that is applicable to bone wound surgery, reconstruction, is specifically related to a kind of medical degradable and absorbs magnesium alloy nail and kit.
Background technology
Magnesium alloy is can absorb embedded material in a kind of body, compares with existing absorbable material, has better mechanical property and biological activity.With biological active titanium alloy phase ratio, magnesium alloy has excellent bio-absorbable performance; Therefore magnesium alloy is made the magnesium alloy implant devices as degradable high polymer material, is particularly useful for that tool has great advantage in the bone internal fixation implantation instrument of bone tissue restoration, and magnesium alloy has good medical science safety basis as the biological medical degradable absorbing material.
Chinese patent CN200810011500.X discloses " a kind of biological and adsorbable bone internal fixation implantation instrument ", this bone internal fixation implantation instrument is internal fixation device spare, comprise blade plate and supporting screw, intramedullary pin, fracture dislocation of spine fixation device, spicule or play the screw of fixation separately, internal fixation device spare is made by the magnesium alloy of biologically active and absorbability.Need the magnesium alloy nail owing to connect the magnesium alloy hone lamella, and the intensity of magnesium alloy nail is lower, can't directly screw in bone, needs to use earlier the carbide drill drilling and tapping, and then with magnesium alloy nail screw-in bone, satisfy the requirement of position, magnesium alloy hone lamella bone fixation folding part.The magnesium alloy nail is being screwed in the process of bone, because the dynamics of operation is difficult for grasping, occur sometimes the yi word pattern of magnesium alloy bone nail head or cross screw slots being damaged and skidding, cause the phenomenon that can't turn, brought no small difficulty for the fixedly implantation of fracture site.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, and is easy to install, is suitable for the fracture site material and implants fixing medical degradable magnesium alloy nail and kit, and it has solved existing fracture site material and has implanted fixing the problems referred to above that exist.
The technical scheme that this utility model adopts is, a kind of medical degradable absorbs magnesium alloy nail and kit, comprise magnesium alloy screw thread nail and matching used screwdriver rod, described magnesium alloy threaded bone nail head end face equalization be provided with two or more pin-and-holes, be connected in the inner hexagonal hole that described matching used screwdriver rod termination is provided with one with magnesium alloy threaded bone nail head pin-and-hole driver bit corresponding, that have pin.
Medical degradable described in the utility model absorbs magnesium alloy nail and kit, is further characterized in that,
The pin-and-hole that described magnesium alloy threaded bone nail head end face equalization is provided with is the blind hole that satisfies the pin insertion depth.
The pin-and-hole of described magnesium alloy threaded bone nail head and the pin of kit driver bit are relevant with the diameter of magnesium alloy screw thread nail, magnesium alloy screw thread nail diameter is that pin-and-hole is two below 4 millimeters the time, pin-and-hole was three when diameter was 4～6 millimeters, diameter more than 6 millimeters the time pin-and-hole be four.
This utility model medical degradable absorbs magnesium alloy nail and kit, by with the matching used screwdriver rod inner hexagonal hole of magnesium alloy screw thread nail in be connected to one corresponding with the bone screw head pin-and-hole, the driver bit that has pin comes turn magnesium alloy screw thread nail, owing to be that the pin-and-hole of using the driver bit that has pin to insert magnesium alloy threaded bone nail head end face turns the magnesium alloy nail, therefore the magnesium alloy nail is being screwed in the process of bone, can be owing to operating force is excessive, the pin-and-hole of magnesium alloy bone nail head is damaged, and cause the phenomenon that can't turn, brought convenience to the doctor for the implantation of patient's fracture site fixed apparatus.
Description of drawings
Fig. 1 is that this utility model medical degradable absorbs medical degradable absorption magnesium alloy nail and kit structural representation;
Fig. 2 a and Fig. 2 b are this utility model magnesium alloy nail and kit two kinds of shape and structure sketch maps in addition.
Among the figure, 1. magnesium alloy screw thread nail, 2. screwdriver rod, 3. pin-and-hole, 4. inner hexagonal hole, 5. driver bit, 6. pin.
The specific embodiment
Below in conjunction with the drawings and specific embodiments this utility model is elaborated.
A kind of medical degradable absorbs magnesium alloy nail and kit, shown in Fig. 1, Fig. 2 a and Fig. 2 b, comprise magnesium alloy screw thread nail 1 and matching used screwdriver rod 2, described magnesium alloy screw thread nail 1 head end equalization be provided with two or more pin-and-holes 3, be connected in the inner hexagonal hole 4 that described matching used screwdriver rod 2 terminations are provided with one with magnesium alloy screw thread nail 1 head pin-and-hole 3 driver bits 5 corresponding, that have pin 6, pin-and-hole that described magnesium alloy screw thread nail 1 head end equalization is provided with 3 is for satisfying the blind hole of pin 6 insertion depths.
This utility model medical degradable absorbs magnesium alloy nail and kit, when the magnesium alloy nail is screwed in bone, it by with the inner hexagonal hole 4 of magnesium alloy screw thread nail 1 matching used screwdriver rod 2 terminations in be connected to one and come turn magnesium alloy screw thread nail 1 with bone screw head pin-and-hole 3 driver bits 5 corresponding, that have pin 6.Owing to be to insert the two or more pin-and-holes 3 of magnesium alloy screw thread nail 1 head end with the driver bit 5 that has pin 6 to turn the magnesium alloy nail, therefore the magnesium alloy nail is being screwed in the process of bone, insert corresponding pin 6 stress equalizations of driver bit 5 of magnesium alloy screw thread nail 1 head end pin-and-hole 3, the pin-and-hole 3 of magnesium alloy bone nail head can not damaged, and cause the phenomenon that can't turn, make things convenient for the doctor to implant for the fixed apparatus of patient's fracture site, improved efficient.
The pin-and-hole 3 of this utility model magnesium alloy screw thread nail 1 head and the pin 6 of kit driver bit 5 are relevant with the diameter of magnesium alloy screw thread nail 1, magnesium alloy screw thread nail 1 diameter is that pin-and-hole 3 is two below 4 millimeters the time, pin-and-hole 3 was three when diameter was 4～6 millimeters, diameter more than 6 millimeters the time pin-and-hole 3 be four.
Above-mentioned embodiment is an example of the present utility model; not enforcement and the interest field that limits utility model; all equivalences of making according to the described content of this utility model patent protection scope change and modify, and all should be included in this utility model claim.
Claims (3)
1. a medical degradable absorbs magnesium alloy nail and kit, comprise magnesium alloy screw thread nail (1) and matching used screwdriver rod (2), it is characterized in that, described magnesium alloy screw thread nail (1) head end equalization be provided with two or more pin-and-holes (3), be connected in the inner hexagonal hole (4) that described matching used screwdriver rod (2) termination is provided with one with magnesium alloy screw thread nail (1) head pin-and-hole (3) driver bit corresponding, that have pin (6) (5).
2. medical degradable according to claim 1 absorbs magnesium alloy nail and kit, it is characterized in that, the pin-and-hole (3) that described magnesium alloy screw thread nail (1) head end equalization is provided with is for satisfying the blind hole of pin (6) insertion depth.
3. medical degradable according to claim 1 absorbs magnesium alloy nail and kit, it is characterized in that, the pin-and-hole (3) of described magnesium alloy screw thread nail (1) head and the pin (6) of kit driver bit (5) are relevant with the diameter of magnesium alloy screw thread nail (1), magnesium alloy screw thread nail (1) diameter is that pin-and-hole (3) is two below 4 millimeters the time, pin-and-hole when diameter is 4～6 millimeters (3) is three, diameter more than 6 millimeters the time pin-and-hole (3) be four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177393 CN203208108U (en) | 2013-04-10 | 2013-04-10 | Medical degradable absorption magnesium alloy bone nail and matching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177393 CN203208108U (en) | 2013-04-10 | 2013-04-10 | Medical degradable absorption magnesium alloy bone nail and matching tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203208108U true CN203208108U (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320177393 Expired - Fee Related CN203208108U (en) | 2013-04-10 | 2013-04-10 | Medical degradable absorption magnesium alloy bone nail and matching tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN203208108U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104257424A (en) * | 2014-08-21 | 2015-01-07 | 赵德伟 | Full-thread degradable pure-magnesium bolt |
| CN106137288A (en) * | 2016-07-19 | 2016-11-23 | 上海交通大学医学院附属第九人民医院 | A kind of magnesium-base metal band line holdfast and implanted device thereof |
| CN112971886A (en) * | 2017-12-30 | 2021-06-18 | 深圳市立心科学有限公司 | Extrusion nail for fixing ligament and assembling tool thereof |
-
2013
- 2013-04-10 CN CN 201320177393 patent/CN203208108U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104257424A (en) * | 2014-08-21 | 2015-01-07 | 赵德伟 | Full-thread degradable pure-magnesium bolt |
| CN106137288A (en) * | 2016-07-19 | 2016-11-23 | 上海交通大学医学院附属第九人民医院 | A kind of magnesium-base metal band line holdfast and implanted device thereof |
| CN106137288B (en) * | 2016-07-19 | 2019-11-19 | 上海交通大学医学院附属第九人民医院 | A kind of magnesium-base metal band line holdfast and its implanted device |
| CN112971886A (en) * | 2017-12-30 | 2021-06-18 | 深圳市立心科学有限公司 | Extrusion nail for fixing ligament and assembling tool thereof |
| CN112971886B (en) * | 2017-12-30 | 2022-01-04 | 深圳市立心科学有限公司 | Extrusion nail for fixing ligament and assembling tool thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20210410 |