CN2852974Y - Broken nail extractor for osteology - Google Patents
Broken nail extractor for osteology Download PDFInfo
- Publication number
- CN2852974Y CN2852974Y CN 200520139965 CN200520139965U CN2852974Y CN 2852974 Y CN2852974 Y CN 2852974Y CN 200520139965 CN200520139965 CN 200520139965 CN 200520139965 U CN200520139965 U CN 200520139965U CN 2852974 Y CN2852974 Y CN 2852974Y
- Authority
- CN
- China
- Prior art keywords
- broken nail
- screw
- sleeve pipe
- cannula
- thread
- 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
- 230000000399 orthopedic effect Effects 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 208000010392 Bone Fractures Diseases 0.000 description 11
- 206010017076 Fracture Diseases 0.000 description 11
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000035876 healing Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241000272525 Anas platyrhynchos Species 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001037 epileptic effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000002436 femur neck Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to an extractor of broken nail used in the department of orthopedics, which comprises a cannula and a screw. The screw is arranged within the cannula. A handle is arranged on the cannula. The noumenon within the cannula has inner thread which is arranged at the anterior and posterior ends of the cannula. The inner thread at the anterior end of the cannula can match with the outer thread of the broken nail to be taken out, and the inner thread at the posterior end of the cannula can match with the outer thread of the screw. The utility model has the advantages of simple structure, convenience in use and small invasiveness to the patient during the operation. At the assistance of an x-ray machine, a small hole is cut in the size of 1cm using a twisting knife for pore opening. Then, match the cannula with the thread on the broken nail, revolve the screw in to make the head of the screw against the broken nail, and then, revolve the cannula in the opposite direction. In the end, the broken nail will be easily revolved out.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, the device for taking out broken nail that particularly a kind of orthopaedics is used.
Background technology
The trauma care of fracture patient, what often adopt clinically in medical treatment is fracture formula screw or plain screw fixation, according to the position of fracture, selects different angle, screw, quantity fix, wait its grow heal after, removable screw again.But in healing stage, tend to because the phenomenon of screw extraction appears in a variety of causes, such as: fracture is healing fully, and patient's activity of just getting up, or vigorous exercise such as fall down makes screw stressed excessive and rupture; The fracture patient that epileptics is arranged, when fracture was not fully recovered, morbidity was twitched, and makes the folding fracture of screw; Broken nail is incorrect in patient's fracture fixed position, the excessive and broken nail of the shearing force that is subjected to the broken ends of fractured bone; Owing to broken nail takes place the screw quality problems.The position that broken nail takes place is generally at the junction surface of screw and fixation steel plate and stress point such as bone splits place.In a single day screw finds phenomenon of rupture, just its taking-up must be fixed again, and the taking-up of broken nail is a relatively problem of difficulty, could take out by means of instrument.Generally be to adopt hole making drill and two instruments of broken nail nail-fetching device to be used clinically, first hole making drill is animally left a hole the broken nail position, exposes broken nail, and the reuse nail-fetching device takes out broken nail.
The device for taking out broken nail that adopts clinically is the three-pawl type clamping structure at present.During use, earlier with the perforate reamer the broken nail position animally twist out a hole, again the three-jaw nail-fetching device is put in the broken nail position of screw, screw screw rod then, make the head of three-jaw clamping broken nail, screw out broken nail then.In clinical use, existing device for taking out broken nail, only be applicable to that the broken nail that the knochenbruch surface reaches than the superficial part position takes out, when the fracture location of broken nail is dark, when particularly broken nail occurring in the neck of femur, it is just very difficult to get broken nail, the round hole that must will open a 2-3cm earlier with the perforate reamer, and the head that just can clamp broken nail could take out broken nail, perhaps to empty the broken nail surface and just can get nail, patient is hemorrhage many like this, and wound is big, and recovery time is long, and make fracture of femoral neck easily, stability is damaged, and fracture is difficult to healing, not even healing.
Summary of the invention
Technical barrier to be solved of the present utility model is to overcome above-mentioned the deficiencies in the prior art, the device for taking out broken nail that provides a kind of orthopaedics simple in structure, easy to use, that wound is little to use.
Concrete technical solution of the present utility model is, is provided with sleeve pipe, and sleeve pipe is provided with handle, and body is provided with female thread in the telescopic pipe, and it is characterized in that: be provided with screw rod in the sleeve pipe, the external screw thread on the screw rod can match with the female thread on the sleeve pipe.
Female thread on the sleeve pipe is located at two ends, telescopic front and back respectively, and the female thread of sleeve pipe leading section can match with the external screw thread of the broken nail that will take out, and the female thread of sleeve pipe rearward end can match with the external screw thread on the screw rod.
Screw rod is provided with handle.
It is that 30 °-60 ° dial bored that the screw thread place of telescopic front end also is provided with angle.
This utility model advantage compared with prior art is, and is simple in structure, has only two parts of sleeve pipe and screw rod to form; Easy to use, as long as assisting down of X-ray machine, earlier with about the threaded engagement 2-3 tooth on sleeve pipe and the broken nail, screw in screw rod again, make the head of screw rod withstand broken nail, and then reverse turn sleeve pipe, just can screw out broken nail easily, and operating process is little to patient's wound, as long as open a duck eye about 1cm with the perforate reamer.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Number in the figure: the 1-screw handle, the 2-sleeve pipe, the 3-screw rod, 4-sleeve pipe handle, 5-sleeve pipe rear end female thread, 6-sleeve pipe front end female thread, angle is bored in dialling of α-sleeve pipe front end.
Concrete implementing method
This utility model embodiment is made up of sleeve pipe 2 and screw rod 3, and sleeve pipe 2 is provided with handle 4, and body is provided with female thread 5,6 in the pipe of sleeve pipe 2, and screw rod 3 is arranged in the sleeve pipe 2, and the external screw thread on the screw rod 3 can match with the female thread 5,6 on the sleeve pipe 2. Female thread 6,5 on the sleeve pipe 2 is located at two ends, front and back of sleeve pipe 2 respectively, and the female thread 6 of sleeve pipe leading section can match with the external screw thread of the broken nail that will take out, and the female thread 5 of sleeve pipe 2 rearward end can match with the external screw thread on the screw rod 3.Generally speaking, the female thread 6,5 of end, sleeve pipe 2 front and back is identical screw thread, but its sleeve pipe leading section screw thread 6 must match with the external screw thread of getting broken nail.Screw rod 3 is provided with handle 1, and rotatable screw handle 1 seesaws screw rod 3 in sleeve pipe 2.Cooperate with broken nail for ease of sleeve pipe 2, the screw thread place of the front end of sleeve pipe 2 also is provided with dials awl, and the angle α of its group awl is 30 °-60 °.
During use, the whole operation process is all carried out under X-ray machine auxiliary.Earlier open a duck eye about 1cm in the affected part with the perforate reamer, put into this nail-fetching device then, make the front end female thread 6 of sleeve pipe 2 and the threaded engagement 2-3 tooth on the broken nail, screw in screw rod 3, make the head of screw rod 3 withstand broken nail, and then backward rotation sleeve pipe 2, thereby take out broken nail, the whole operation process is very little to patient's wound.
Claims (4)
1, the device for taking out broken nail used of a kind of orthopaedics is provided with sleeve pipe, and sleeve pipe is provided with handle, and body is provided with female thread in the telescopic pipe, and it is characterized in that: be provided with screw rod in the sleeve pipe, the external screw thread on the screw rod can match with the female thread on the sleeve pipe.
2, the device for taking out broken nail used of a kind of orthopaedics as claimed in claim 1, it is characterized in that: the female thread on the sleeve pipe is located at two ends, telescopic front and back respectively, the female thread of sleeve pipe leading section can match with the external screw thread of the broken nail that will take out, and the female thread of sleeve pipe rearward end can match with the external screw thread on the screw rod.
3, the device for taking out broken nail used of a kind of orthopaedics as claimed in claim 1 or 2, it is characterized in that: screw rod is provided with handle.
4, the device for taking out broken nail used of a kind of orthopaedics as claimed in claim 1 or 2 is characterized in that: it is 30 °-60 ° the awl of dialling that the screw thread place of telescopic front end also is provided with angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139965 CN2852974Y (en) | 2005-12-20 | 2005-12-20 | Broken nail extractor for osteology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520139965 CN2852974Y (en) | 2005-12-20 | 2005-12-20 | Broken nail extractor for osteology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2852974Y true CN2852974Y (en) | 2007-01-03 |
Family
ID=37579599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520139965 Expired - Fee Related CN2852974Y (en) | 2005-12-20 | 2005-12-20 | Broken nail extractor for osteology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2852974Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151171A (en) * | 2011-03-15 | 2011-08-17 | 平阴县人民医院 | Broken-nail extractor for orthopedics and using method thereof |
| CN103750897A (en) * | 2014-01-16 | 2014-04-30 | 青岛华仁技术孵化器有限公司 | Orthopaedic broken screw removing device and using method thereof |
| CN104434295A (en) * | 2014-11-07 | 2015-03-25 | 中国人民解放军第四军医大学 | Special screw driver for taking orthopaedic internal fixed slip screw |
-
2005
- 2005-12-20 CN CN 200520139965 patent/CN2852974Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151171A (en) * | 2011-03-15 | 2011-08-17 | 平阴县人民医院 | Broken-nail extractor for orthopedics and using method thereof |
| CN102151171B (en) * | 2011-03-15 | 2012-09-26 | 平阴县人民医院 | Broken-nail extractor for orthopedics and using method thereof |
| CN103750897A (en) * | 2014-01-16 | 2014-04-30 | 青岛华仁技术孵化器有限公司 | Orthopaedic broken screw removing device and using method thereof |
| CN103750897B (en) * | 2014-01-16 | 2016-09-07 | 王希强 | Orthopedic broken screw withdrawing device and using method thereof |
| CN104434295A (en) * | 2014-11-07 | 2015-03-25 | 中国人民解放军第四军医大学 | Special screw driver for taking orthopaedic internal fixed slip screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070103 Termination date: 20100120 |