CN205658950U - Modular eccentric trepan - Google Patents
Modular eccentric trepan Download PDFInfo
- Publication number
- CN205658950U CN205658950U CN201620409913.3U CN201620409913U CN205658950U CN 205658950 U CN205658950 U CN 205658950U CN 201620409913 U CN201620409913 U CN 201620409913U CN 205658950 U CN205658950 U CN 205658950U
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- CN
- China
- Prior art keywords
- sawtooth
- trepan
- pipe
- utility
- model
- 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
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- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model provides a modular eccentric trepan, relates to medical instrument, especially a convenient to use, reduces the operation risk, modular eccentric trepan that use cost is low. The utility model discloses a modular eccentric trepan, this trepan of its characterized in that includes and pipe and sawtooth piece is provided with the screw thread on the end outer wall of pipe, the sawtooth piece is the ring form, and the inner wall is provided with the screw, and the sawtooth piece passes through the thread tightening in the end of pipe department, set up the sawtooth in the sawtooth piece outer fringe, the sawtooth both ends are not more than 180 with sawtooth piece circle center connection line's contained angle alpha. The utility model discloses a modular eccentric trepan adopts the annular sawtooth of fan -shaped circle, does benefit to doctor's pertinence and uses, avoids unnecessary sawtooth NOT AND excision position production to wipe and bumps the operation accident that leads to the fact, utilizes detachable sawtooth chip architecture in addition, only need change the sawtooth piece alone after wearing and tearing, has reduced use cost, simultaneously install the handle additional at the pipe other end, utilize the action of amputating that the handle can be quicker, accurate, improve operation efficiency.
Description
Technical field
This utility model relates to medical apparatus and instruments, a kind of easy to use, reduces operation risk, the group that use cost is low
Box-like eccentric trepan.
Background technology
In spinal operation, often have some foreign bodies to be attached on vertebra, again or some vertebra hyperosteogenys, need into
Row excision, and resecting tool conventional at present is a kind of annular saw blade, this saw blade is typically to be processed as one of a pipe
One circular sawtooth, when performing the operation, this saw blade is carefully moved to need the position of excision, then slewing circle by doctor
Pipe, utilizes sawtooth can complete to excise work.
But, during excision, doctor is adopted as site-directed excision more, and inside of human body respectively organize between pole, gap
Little, therefore when excision, it is multiple that the sawtooth of circular ring type is very easy to wipe the tissue encountering adjacent regions, especially spinal column surrounding anatomic
Miscellaneous, neural, blood vessel gathers, and can cause great malpractice after damage；Meanwhile, in order to improve the precision of excision position, it is to avoid
Cutting mistake, doctor is in operation process, it is common that use the low-angle excision mode repeatedly rotated after sawtooth fixes position,
Substantially without the mode using full circumferences to rotate, the wear intensity thus resulting in whole sawtooth is different, and a saw blade often occurs
The sawtooth of half is the sharpest, and second half sawtooth has worn out and can not use, it is necessary to the situation of replacing, and existing saw blade
Sawtooth be all directly processing on pipe, change sawtooth and be necessary for whole saw blade and change together, the most just create greatly
Waste.
Summary of the invention
To be solved in the utility model be exactly existing annular its sawtooth of saw blade be circular, in operation process, its saw
Tooth is easily wiped and is met other positions, causes accident surgery, and whole circular sawtooth, and the degree of wear differs, and produces waste
Problem, it is provided that a kind of easy to use, reduces operation risk, the combination type bias trepan that use cost is low.
Combination type bias trepan of the present utility model, it is characterised in that this trepan includes pipe and sawtooth sheet, the one of pipe
It is provided with screw thread on the outer wall of individual termination；Sawtooth sheet is circular, and inwall is provided with screw thread, and sawtooth sheet is threadedly secured to pipe
End；Arranging sawtooth in sawtooth sheet outer rim, sawtooth two ends are not more than 180 ° with the angle α of sawtooth sheet circle center line connecting.
Described sawtooth is rotated in a clockwise direction, and when carrying out resection operation, doctor rotates clockwise pipe, can cut
Removing, rotation counterclockwise then will not be excised, it is simple to doctor operates according to practical situation.
The described pipe other end is provided with handle, and this handle is threadedly secured to inside pipe, in operation process,
Doctor is driven pipe by handle, is driven sawtooth sheet quick rotation by pipe again, to improve procedure efficiency.
Combination type bias trepan of the present utility model, design science, rational in infrastructure, easy to use, use fan-shaped circular
Sawtooth, beneficially doctor's specific aim uses, it is to avoid unnecessary sawtooth and non-ablated position produce wiping and touch and cause accident surgery, Er Qieli
By detachable sawtooth chip architecture, when only needing to be individually replaced sawtooth sheet after abrasion, reduce use cost；The most another at pipe
One end installs handle additional, utilizes handle can carry out excision action more rapid, accurately, improves procedure efficiency.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model sawtooth chip architecture schematic diagram.
Wherein, pipe 1, sawtooth sheet 2, sawtooth 3, handle 4.
Detailed description of the invention
Embodiment 1: a kind of combination type bias trepan, including pipe 1 and sawtooth sheet 2, a termination outer wall of pipe 1 sets
It is equipped with screw thread；Sawtooth sheet 2 is in circular, and inwall is provided with screw thread, and sawtooth sheet 2 is threadedly secured to the end of pipe 1；Saw
Arranging sawtooth 3 in gear piece 2 outer rim, sawtooth 3 two ends are not more than 180 ° with the angle α of sawtooth sheet 2 circle center line connecting.Sawtooth 3 is along up time
Pin direction rotates, and when carrying out resection operation, doctor rotates clockwise pipe 1, can excise, and rotation counterclockwise then will not be carried out
Excision, it is simple to doctor operates according to practical situation.Pipe 1 other end is additionally provided with handle 4, and this handle 4 is solid by screw thread
Being scheduled on pipe 1 internal, in operation process, doctor is driven pipe 1 by handle 4, is driven sawtooth sheet 2 quickly to turn by pipe 1 again
Dynamic, to improve procedure efficiency.
Claims (3)
1. a combination type bias trepan, it is characterised in that this trepan includes pipe (1) and sawtooth sheet (2), of pipe (1)
It is provided with screw thread on the outer wall of termination；Sawtooth sheet (2) is in circular, and inwall is provided with screw thread, and sawtooth sheet (2) is threadedly secured to
The end of pipe (1)；The folder of sawtooth (3), sawtooth (3) two ends and sawtooth sheet (2) circle center line connecting is set in sawtooth sheet (2) outer rim
Angle α is not more than 180 °.
2. combination type bias trepan as claimed in claim 1, it is characterised in that described sawtooth (3) revolves along clockwise direction
Turn.
3. combination type bias trepan as claimed in claim 1, it is characterised in that described pipe (1) other end is provided with handle
(4), this handle (4) is threadedly secured to pipe (1) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409913.3U CN205658950U (en) | 2016-05-09 | 2016-05-09 | Modular eccentric trepan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409913.3U CN205658950U (en) | 2016-05-09 | 2016-05-09 | Modular eccentric trepan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205658950U true CN205658950U (en) | 2016-10-26 |
Family
ID=57159789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620409913.3U Expired - Fee Related CN205658950U (en) | 2016-05-09 | 2016-05-09 | Modular eccentric trepan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205658950U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998646A (en) * | 2019-04-28 | 2019-07-12 | 青岛大学附属医院 | A kind of backbone scope hollow arbor braid lock puncture positioning device |
| CN110090048A (en) * | 2019-05-30 | 2019-08-06 | 朱文婷 | A kind of ultrasonic osteotome bit |
-
2016
- 2016-05-09 CN CN201620409913.3U patent/CN205658950U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998646A (en) * | 2019-04-28 | 2019-07-12 | 青岛大学附属医院 | A kind of backbone scope hollow arbor braid lock puncture positioning device |
| CN110090048A (en) * | 2019-05-30 | 2019-08-06 | 朱文婷 | A kind of ultrasonic osteotome bit |
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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 |
Granted publication date: 20161026 Termination date: 20200509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |