CN205586067U - Bone cement cracker in pulp cavity - Google Patents
Bone cement cracker in pulp cavity Download PDFInfo
- Publication number
- CN205586067U CN205586067U CN201620140011.4U CN201620140011U CN205586067U CN 205586067 U CN205586067 U CN 205586067U CN 201620140011 U CN201620140011 U CN 201620140011U CN 205586067 U CN205586067 U CN 205586067U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- electric drill
- bone cement
- cylinder
- pulp cavity
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 239000002639 bone cement Substances 0.000 title claims abstract description 24
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 abstract description 5
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a bone cement cracker in pulp cavity, including cutting head, guide bar and electric drill connecting rod, it is sharp -nosed short cylinder to cut first end, and surface circumference distributing auger cutting edge, cutting edge prolong to the tip end, cut first other end fixed connection concentric cylinder guide bar, and guide bar other end fixed connection concentric cylinder electric drill connecting rod, guide bar diameter are greater than first cylinder of cutting and connecting rod cylinder diameter, and the electric drill is connected in the cooperation of electric drill connecting rod other end cantilever end. The utility model discloses simple structure, convenient and practical avoids causing and destroys protruding side bone cortex and the emergence of sticking of tool phenomenon, can carry out the breakage to bone cement in the pulp cavity smoothly.
Description
Art
This utility model relates to technical field of medical instruments, especially relates to bone cement destroyer in a kind of pulp cavity.
Background technology
In hospital orthopedics clinical operation, prosthetic replacement's operation is the conventional method treating limb malignant tumor at present.Along with medical level improves, survival extends, and artificial joint revision procedure is also increasing.Artificial joint typically requires with cement reaction in bone, needs to remove broken in medullary cavity for the bone cement of fixed fae body in revision procedure.At present broken bone cement frequently with mode be: narrow osteotome taps or with the boring of common long drill bit.But owing to backbone has nature physiological camber, and residual bone cement form is irregular, boring deviation pulp cavity center often occur, drill bit destroys normal bone cortex phenomenon.Therefore, a kind of simple in construction of research and development, convenient and practical, bone cement breaker in the pulp cavity with guider, destroys normal bone cortex during to avoid broken bone cement, is the current the art task of being badly in need of.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in construction, convenient and practical, bone cement destroyer in the pulp cavity with guider.
In order to achieve the above object, this utility model following structure technology scheme of employing: bone cement destroyer in a kind of pulp cavity, including bit, guide post and electric drill connecting rod, be characterized in: bit be one end be the short cylinder of tip, outer surface circumference uniform distribution spiral cutting edge, spiral cutting edge extends to tip end, the bit other end is fixing connects concentric cylinder guide post, the guide post other end is fixing connects concentric cylinder electric drill connecting rod, electric drill connecting rod other end cantilever, guide post diameter is more than bit cylinder and connecting rod cylinder diameter, constitute bone cement destroyer in a kind of pulp cavity.
The a length of 20-30mm of guide post described above.
Electric drill connecting rod cantilever end described above is connected electric drill.
The beneficial effects of the utility model are: use said structure, in operation in broken pulp cavity during bone cement, because deflector portion is limited by the normal pulp cavity having removed bone cement, it is positioned at pulp cavity central authorities, cutting portion is forced to be also at pulp cavity center, the RC bone cement of pulp cavity can only be crushed, it is to avoid during broken bone cement, destroy normal bone cortex.Guide part diameter is close to normal pulp cavity diameter, direction of advance can be limited, guide post connection diameter is less than the electric drill connecting rod of guide post diameter portion, it is to avoid damage convex side seam cortex due to pulp cavity physiological camber and bit freezing phenomenon occurs, crush bone cement in pulp cavity smoothly.
Accompanying drawing explanation
Fig. 1 is this utility model front view
Fig. 2 is the guide post partial enlarged drawing of Fig. 1
Fig. 3 is the left view of Fig. 2
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further illustrated, Fig. 1 to Fig. 3 demonstrates structure of the present utility model, bone cement destroyer in a kind of pulp cavity, including bit 1, guide post 2 and electric drill connecting rod 3, bit 1 is the short cylinder of tip for one end, outer surface circumference uniform distribution spiral cutting edge 4, spiral cutting edge 4 extends to tip end, bit 1 other end is fixing connects concentric cylinder guide post 2, guide post 2 other end is fixing connects concentric cylinder electric drill connecting rod 3, electric drill connecting rod 3 other end cantilever, guide post 2 diameter is more than bit 1 cylinder and electric drill connecting rod 3 cylinder diameter, the a length of 20-30mm of guide post 2, electric drill connecting rod 3 cantilever end is connected electric drill, constitute bone cement destroyer in a kind of pulp cavity.
Claims (3)
1. bone cement destroyer in a pulp cavity, including bit (1), guide post (2) and electric drill connecting rod (3), it is characterized in that: bit (1) be one end be the short cylinder of tip, outer surface circumference uniform distribution spiral cutting edge (4), spiral cutting edge (4) extends to tip end, bit (1) other end is fixing connects concentric cylinder guide post (2), guide post (2) other end is fixing connects concentric cylinder electric drill connecting rod (3), electric drill connecting rod (3) other end cantilever, guide post (2) diameter is more than bit (1) cylinder and connecting rod (3) cylinder diameter, constitute bone cement destroyer in a kind of pulp cavity.
Bone cement destroyer in pulp cavity the most according to claim 1, it is characterised in that: upper described guide post (2) a length of 20-30mm.
Bone cement destroyer in pulp cavity the most according to claim 1, it is characterised in that: electric drill connecting rod (3) cantilever end described above is connected electric drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140011.4U CN205586067U (en) | 2016-02-25 | 2016-02-25 | Bone cement cracker in pulp cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140011.4U CN205586067U (en) | 2016-02-25 | 2016-02-25 | Bone cement cracker in pulp cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205586067U true CN205586067U (en) | 2016-09-21 |
Family
ID=56928167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620140011.4U Expired - Fee Related CN205586067U (en) | 2016-02-25 | 2016-02-25 | Bone cement cracker in pulp cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205586067U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963447A (en) * | 2017-02-27 | 2017-07-21 | 北京爱康宜诚医疗器材有限公司 | Pulp cavity middle-device |
| CN111839841A (en) * | 2020-07-24 | 2020-10-30 | 北京市春立正达医疗器械股份有限公司 | Be arranged in articular turnover hand prosthesis and surrounding bone cement stripping off device |
-
2016
- 2016-02-25 CN CN201620140011.4U patent/CN205586067U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963447A (en) * | 2017-02-27 | 2017-07-21 | 北京爱康宜诚医疗器材有限公司 | Pulp cavity middle-device |
| CN106963447B (en) * | 2017-02-27 | 2023-12-19 | 北京爱康宜诚医疗器材有限公司 | Intramedullary canal central device |
| CN111839841A (en) * | 2020-07-24 | 2020-10-30 | 北京市春立正达医疗器械股份有限公司 | Be arranged in articular turnover hand prosthesis and surrounding bone cement stripping off device |
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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: 20160921 |