CN2130507Y - Strong intramedullary pin nailing and extraction device - Google Patents
Strong intramedullary pin nailing and extraction device Download PDFInfo
- Publication number
- CN2130507Y CN2130507Y CN 92225894 CN92225894U CN2130507Y CN 2130507 Y CN2130507 Y CN 2130507Y CN 92225894 CN92225894 CN 92225894 CN 92225894 U CN92225894 U CN 92225894U CN 2130507 Y CN2130507 Y CN 2130507Y
- Authority
- CN
- China
- Prior art keywords
- utility
- strong
- screw rod
- extraction device
- 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
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to a strong intramedullary pin nailing and extraction device, which belongs to a medical appliance, particularly extracting the intramedullary nails in the process of arthrosteopedic surgery. The utility model is composed of a support pipe 4, a screw rod 5, a push nut 6, a handle 8, and a strong extractor head 11, wherein, the long end of the screw rod 5 is processed with external screw threads 14, and the external screw threads 14 is matched with the screw bore 15 positioned in the center of the push nut 6. The utility model avoids breaking and clamping hooks when the intramedullary nails are pulled out. The utility model has the advantages of simple structure, low cost, and convenient operation. The strong intramedullary pin nailing and extraction device is an ideal intramedullary pin extraction device in the process of arthrosteopedic surgery.
Description
Powerful intramedullary needle injection-drawing out device relates to a kind of medical apparatus and instruments, the medical apparatus and instruments of extracting especially for intramedullary needle in the bone surgery.
At present, in the bone surgery intramedullary needle what extract employing is the beating type extractor, when this extractor is worked, its gib head hooks the intramedullary needle afterbody, utilize hand hammer to knock and beat handle, intramedullary needle is extracted in bone cavity, found in clinical practice, the stuck phenomenon such as pull out to come out of intramedullary needle often appears that gib head is broken or in the beating type extractor.
The purpose of this utility model realizes the brute force of intramedullary needle is extracted with regard to providing a kind of screw mechanism that adopts, and also has the beating type function simultaneously concurrently and does not have disconnected hook, the no stuck powerful intramedullary needle injection-drawing out device that can not pull out phenomenon.
The technical solution of the utility model accompanying drawings is as follows: powerful intramedullary needle injection-drawing out device, and by support tube 4, screw rod 5, pushnut 6 is beaten handle 8 and brute force and is extracted 11 composition.Screw rod 5 long ends are processed with external screw thread 14, and cooperate with pushnut 6 screwed hole of centre 15, are major technique features of the present utility model.Extract on 11 in brute force fastener 2 also is housed, spring 10 and alignment pin 3, brute force is extracted and is also had " V " type or fan type slotted eye 21 or 22 on the 11 front end cross section vertically, and what band thread protector 7 was housed in screw rod 5 terminations beats handle 8.Operation principle of the present utility model is to utilize pushnut 6 to rotate the static(al) that produces on screw rod 5, act on the medullary cavity cross section by support tube 4, produce reaction force acts thus in screw rod 5, screw rod 5 is driven powerfully transfer to 11, intramedullary needle 1 is extracted from bone cavity.Assembling process of the present utility model: the pushnut 6 that handle 9 at first will be housed screws in from screw rod 5 long ends, the handle 8 of beating that thread protector 7 will be housed again is loaded on screw rod 5 long end terminations, then fastener 2 will be housed, the brute force of spring 10 and alignment pin 3 is extracted 11 and is contained in screw rod 5 front ends, at last support tube 4 is sleeved on the step 13 and pushnut step 16 of screw rod 5, only needs during use that intramedullary needle is inserted brute force and extract in a slotted eye 21 or 22 and can fix.
Advantage of the present utility model: avoided gib head to be broken and stuck phenomenon in the work; Simple in structure; Cost is low; Easy to use.
Description of drawings, Fig. 1 are the installation diagrams of powerful intramedullary needle injection-drawing out device, and Fig. 2 is the part drawing of screw rod 5, have represented external screw thread 14 among the figure, screw 12, step 13; Fig. 3 is the cutaway view of pushnut 6, has represented screwed hole of centre 15 among the figure, step 16, handle hole 17; Fig. 4, Fig. 5 are that brute force is extracted a front view and a vertical view of 11, have represented draw-in groove 23 among the figure, spring eye 20, dowel hole 19, hole clipping 18; Fig. 6, Fig. 7 are that brute force is extracted a sectional view, have represented " V " type slotted eye 21 and fan type slotted eye 22 among the figure respectively.
Example: according to this description and accompanying drawing, and according to intramedullary needle section form and length, design the installation diagram and the part drawing that meet national standard, wherein screw rod 5 Front-end Design one screw 12 and brute force are extracted 11 and are adopted and be threaded.Select stainless steel material for use,, can produce product of the present utility model with existing mechanical processing technique and equipment.
Claims (3)
1, powerful intramedullary needle injection-drawing out device, particularly by support tube 4, screw rod 5, pushnut 6, beat a handle 8 and powerful 11 a powerful intramedullary needle injection-drawing out device of forming of extracting, it is characterized in that: screw rod 5 long ends are processed with external screw thread 14, and cooperate with pushnut 6 screwed hole of centre 15.
2, powerful intramedullary needle injection-drawing out device according to claim 1 is characterized in that: extract in brute force and have " V " type or fan type slotted eye 21 or 22 on the front end cross section vertically.
3, powerful intramedullary needle injection-drawing out device according to claim 1 and 2 is characterized in that: brute force is extracted on 11 and fastener 2 is housed, spring 10 and alignment pin 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92225894 CN2130507Y (en) | 1992-06-27 | 1992-06-27 | Strong intramedullary pin nailing and extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92225894 CN2130507Y (en) | 1992-06-27 | 1992-06-27 | Strong intramedullary pin nailing and extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2130507Y true CN2130507Y (en) | 1993-04-28 |
Family
ID=33770413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92225894 Expired - Fee Related CN2130507Y (en) | 1992-06-27 | 1992-06-27 | Strong intramedullary pin nailing and extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2130507Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106901826A (en) * | 2017-02-24 | 2017-06-30 | 中山弗雷德机械有限公司 | A kind of orthopaedics locating steel needle withdrawing device |
-
1992
- 1992-06-27 CN CN 92225894 patent/CN2130507Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106901826A (en) * | 2017-02-24 | 2017-06-30 | 中山弗雷德机械有限公司 | A kind of orthopaedics locating steel needle withdrawing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4790304A (en) | Self-locking pin device particularly useful for internally fixing bone fractures | |
| DE3671835D1 (en) | OSTEOSYNTHESIS TOOLS FOR SUPPLYING SUBTROCHANTER FRACTURES. | |
| CN2130507Y (en) | Strong intramedullary pin nailing and extraction device | |
| US7850699B2 (en) | Device for extraction of pins at fixation means for fixation of bone fragments at bone fractures | |
| CN2301178Y (en) | Needle extraction device | |
| CN100496424C (en) | Bridge joining composite bone fracture internal fixing device | |
| CN106264704B (en) | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device | |
| RU2020887C1 (en) | Device for extracting osteal transplants | |
| CN211633547U (en) | Nail puller for orthopedics | |
| CN114041868B (en) | Force application device and nail puller with hammering reset function | |
| CN211023061U (en) | Bone nail pulling device for orthopedic surgery | |
| CN2221946Y (en) | Left screw extractor for medical use | |
| CN220561297U (en) | Universal pliers with adjustable structure | |
| GB1436546A (en) | Surgical device for setting fractures | |
| CN215384529U (en) | Femoral intramedullary nail fixing system | |
| CN220069756U (en) | Skin disease skin damage sampler | |
| CN2293299Y (en) | Anti-sliding pounding & extracting device | |
| CN206434408U (en) | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device | |
| CN116370050B (en) | Internal fixing screw | |
| CN87211219U (en) | Expansion type bone nail | |
| CN217960277U (en) | Nail taking-out screwdriver for orthopedics department | |
| CN215994215U (en) | Pulling force kirschner wire | |
| CN209629799U (en) | A kind of dedicated bone nail of Medical orthopedic of easy taking-up | |
| CN218106026U (en) | Hook-shaped intramedullary nail main nail extractor | |
| CN2430123Y (en) | Trephine type residual nail extractor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |