CN202060857U - Hollow guiding internally contracted pressing bone bolt - Google Patents
Hollow guiding internally contracted pressing bone bolt Download PDFInfo
- Publication number
- CN202060857U CN202060857U CN2011201538422U CN201120153842U CN202060857U CN 202060857 U CN202060857 U CN 202060857U CN 2011201538422 U CN2011201538422 U CN 2011201538422U CN 201120153842 U CN201120153842 U CN 201120153842U CN 202060857 U CN202060857 U CN 202060857U
- Authority
- CN
- China
- Prior art keywords
- nail
- screw rod
- hollow
- pin thread
- nut
- 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 the technical field of medical equipment, in particular to an internal fixing device of an orthopedics department used for fixing a fracture part. A hollow guiding internally contracted pressing bone bolt is composed of a male screw rod nail and a female screw nut nail. The male screw rod nail and the female screw nut nail are placed in a bone of a person under the guide of kirschner wires and contracted and pressed through mutual displacement in a screwing process. Only two nuts are retained on the surface of the bone after operation is completed, and the problem that the screw rod exceeds the nut in length and forms a protrusion is avoided.
Description
Technical field
This utility model relates to technical field of medical instruments, and specifically a kind of orthopaedics is used for fixing the internal fixation apparatus of fracture site.
Background technology
At present, bone bolt of using in the orthopaedics inside-fixture and our bolt daily and commercial Application are basic identical, form by screwed screw rod and nut, nut screws on screw rod and plays pressurization in the application process, occurs screw rod usually and exceed nut formation ledge in screwing pressure process.Need sterilization treatment because be used for the tissue fixed apparatus, and screw is fixed in, and afterwards exposed space is limited in the human body, screw rod exceeds the general sterilization of nut formation ledge application operating theater instruments and can't clip, the commercial Application instrument can't be used for operation because of needs sterilization treatment reason, cause screw rod outside skeleton, to form ledge in the soft tissue, stimulate local soft tissue to form cicatrix, cause the local pain discomfort, even influence limb function, bring misery and psychological burden to patient.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, and a kind of bone bolt that screw portion can be placed in fully in the skeleton is provided.
The technical solution of the utility model is achieved in that hollow guiding inward contraction pressurizing bone bolt, is made up of pin thread screw rod nail and female threaded nut nail.It is characterized in that: pin thread screw rod nail and female threaded nut nail screw in the process and play the contraction pressurization by mutual displacement, only there are two nuts to stay after operation is finished, can not occur in this process exceeding nut formation ledge as the screw rod of conventional bolt in bone surface; Pin thread screw rod nail and female threaded nut nail are the hollow design with diameter, can conveniently finish to insert by Kirschner wire guiding that is complementary with it to screw the pressurization installation process, can obviously dwindle operative incision, reduce wound; Pin thread screw rod ailhead end is designed to not have the oriented module of screw thread minor diameter, is convenient to insert be partially submerged into rear thread with the threadless guide thimble of female threaded nut ailhead end in the installation process and dock; Female threaded nut ailhead end is designed to not have the large diameter guide thimble of screw thread, is convenient to insert be partially submerged into rear thread with the threadless oriented module of pin thread screw rod ailhead end in the installation process and dock; Pin thread screw rod nail and female threaded nut ailing tail nut partial design are sphere shape, can with the blade plate and the pad fit applications of present orthopaedics clinical practice; Pin thread screw rod nail and the tight motivation transfer motion part of female threaded nut ailing tailspin are designed to six stupefied shape screws, are complementary with hollow six stupefied spiral shell cuttves of present orthopaedics clinical practice, and be easy to use.
Advantage of the present utility model is: hollow guiding inward contraction pressurizing bone bolt is applied to skeleton and screw rod as conventional bolt can occur and exceed nut and form outstanding part, can not cause the local pain discomfort, influence the limb function situation, alleviate patient's misery and psychological burden.Hollow guiding inward contraction pressurizing bone bolt is a hollow design, and is convenient, fast by Kirschner wire guiding installation and demolishing process, can obviously dwindle operative incision, reduces wound.Hollow guiding inward contraction pressurizing bone bolt can with the blade plate and the pad fit applications of present orthopaedics clinical practice.
Description of drawings
Fig. 1 is this utility model pin thread screw rod nail sketch map
Fig. 2 is this utility model female threaded nut nail sketch map
Fig. 3 screws sketch map for this utility model by the Kirschner wire guiding
The specific embodiment
Hollow guiding inward contraction pressurizing bone bolt is made up of pin thread screw rod nail (1) and female threaded nut nail (2), and pin thread screw rod nail (1) is hollow (3) design, and female threaded nut nail (2) is hollow (4) design, hollow (3) and hollow (4) equal diameters.The six stupefied shape screws (7) of pin thread screw rod nail (1) nut (5), the six stupefied shape screws (8) of female threaded nut nail (2) nut (6).Pin thread screw rod nail (1) design has oriented module (9), and female threaded nut nail (2) design has guide thimble (10).Pin thread screw rod nail (1) design has pin thread (11), and female threaded nut nail (2) design has and female thread (12), and pin thread (11) equates with female thread (12) pitch.
When hollow (3), hollow (4) corresponding with pin thread screw rod nail (1) and female threaded nut nail (2) are complementary after Kirschner wire (13) penetrates expectation and be screwed into the skeletal sites of bone bolt, use with pin thread screw rod nail (1) and be complementary hollow boring bit in Kirschner wire (13) guiding boring down, pin thread screw rod nail (1) is penetrated Kirschner wire (13) by hollow (3) therebetween, along Kirschner wire (13) guiding insertion skeleton; Offside is used with female threaded nut nail (2) and is complementary hollow boring bit in Kirschner wire (13) guiding boring down, female threaded nut nail (2) is penetrated Kirschner wire (13) by hollow (4) therebetween, along Kirschner wire (13) guiding insertion skeleton; At this moment the oriented module (9) of pin thread screw rod nail (1) embeds mutually with the guide thimble (10) of female threaded nut nail (2), and pin thread (11) contacts with female thread (12).The six stupefied spiral shell cuttves that will be complementary with the six stupefied shape screws (7) of pin thread screw rod nail (1) nut (5) insert six stupefied shape screws (7) along Kirschner wire (13) guiding, to follow closely the six stupefied spiral shell cuttves that the six stupefied shape screws (8) of (2) nut (6) are complementary with female threaded nut and insert six stupefied shape screws (8) along Kirschner wire (13) guiding, two 6 stupefied spiral shell cuttves are pressed the rightabout rotation, pin thread (11) tightens pressurization with female thread (12), sclerite resets, the nut (5) of pin thread screw rod nail (1) and female threaded nut nail (2) nut (6) are tight with the mutual embedding of cortex of skeleton both sides, finish fixingly, extract Kirschner wire (13).Can use the pad that is complementary with nut (5), nut (6) in the art increases the area of nut pressurization, reduces the occurrence probability that sinks into situations such as skeleton and skeleton splitting in the nut.
Operation taking-up process at first finds a square nut (5) or nut (6), to be complementary with hollow (3), hollow (4), to penetrate bolt hollow and pass to offside subcutaneous for Kirschner wire (13), another nut is found in Kirschner wire (13) guiding the other side's otch down, to insert along Kirschner wire (13) guiding with the six stupefied spiral shell cuttves that six stupefied shape screws (7), six stupefied shape screws (8) are complementary, two 6 stupefied spiral shell cuttves are pressed the rightabout rotation can convenient and swift taking-up pin thread screw rod nail (1) and female threaded nut nail (2).
Claims (4)
1. hollow guiding inward contraction pressurizing bone bolt, its principal character is: be made up of pin thread screw rod nail (1) and female threaded nut nail (2), pin thread screw rod nail (1) is hollow (3) design, and female threaded nut nail (2) is hollow (4) design, hollow (3) and hollow (4) equal diameters.
2. hollow guiding inward contraction pressurizing bone bolt according to claim 1 is characterized in that: pin thread screw rod nail (1) nut (5) is designed to six stupefied shape screws (7), and female threaded nut nail (2) nut (6) is designed to six stupefied shape screws (8).
3. hollow guiding inward contraction pressurizing bone bolt according to claim 1, it is characterized in that: pin thread screw rod nail (1) design has oriented module (9), female threaded nut nail (2) design has guide thimble (10), bootable pin thread (11) with screw pressurization after female thread (12) contacts.
4. hollow guiding inward contraction pressurizing bone bolt according to claim 1, it is characterized in that: pin thread screw rod nail (1) design has pin thread (11), female threaded nut nail (2) design has and female thread (12), and pin thread (11) equates with female thread (12) pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201538422U CN202060857U (en) | 2011-05-05 | 2011-05-05 | Hollow guiding internally contracted pressing bone bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201538422U CN202060857U (en) | 2011-05-05 | 2011-05-05 | Hollow guiding internally contracted pressing bone bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202060857U true CN202060857U (en) | 2011-12-07 |
Family
ID=45054741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201538422U Expired - Fee Related CN202060857U (en) | 2011-05-05 | 2011-05-05 | Hollow guiding internally contracted pressing bone bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202060857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111419336A (en) * | 2020-04-27 | 2020-07-17 | 周海广 | Special tool for femoral head aseptic necrosis femoral neck medullary core decompression bone grafting |
-
2011
- 2011-05-05 CN CN2011201538422U patent/CN202060857U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111419336A (en) * | 2020-04-27 | 2020-07-17 | 周海广 | Special tool for femoral head aseptic necrosis femoral neck medullary core decompression bone grafting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204698663U (en) | Locking compress bridge system and Wire/cable contact member inner fixing device | |
| CN101703419A (en) | Hollow guiding inward contraction pressurizing bone bolt | |
| CN202060857U (en) | Hollow guiding internally contracted pressing bone bolt | |
| CN201759663U (en) | Locking type anterior cervical plate system | |
| CN201631365U (en) | Internal fixing system of combined tension belt for patellar fracture | |
| CN206482649U (en) | A kind of fracture reduction fixing clamp | |
| CN202146352U (en) | Combined type three dimensional ankle traction fixing bracket | |
| CN203677230U (en) | Minimally invasive hollow multi-side hole spinal pedicle screw | |
| CN205126387U (en) | Kneecap internal fixation device | |
| CN211300268U (en) | Fixing screw and phalangeal fracture external fixation support | |
| CN201642284U (en) | Combined clavicle intramedullary nail | |
| CN203183014U (en) | Inner fixing system of rectangular sacrum plate | |
| CN203291003U (en) | Thighbone locking plate | |
| CN204446078U (en) | Cluster metal bone fracture plate | |
| CN210009115U (en) | Minimally invasive bone fracture plate system with bracket nail | |
| CN217219172U (en) | Internal thread forcing screw device | |
| CN101623210B (en) | Lumbar spondyloschisis forcing screw | |
| CN201847766U (en) | Hollow anti-slip screw for patellar fracture internal fixation | |
| CN106510822B (en) | Combined pelvis drift minimally invasive internal fixing device | |
| CN205458984U (en) | Transverse connection device | |
| CN210727848U (en) | Sliding compression hollow screw for treating patellar fracture by combining tension belt | |
| CN202497229U (en) | Anti-loose hollow compression screw used for fracture internal fixation | |
| CN102579125A (en) | Fracture internal-fixation anti-looseness hollow compression screw | |
| CN203183016U (en) | Inner fixing system of convex sacrum plate | |
| CN2489729Y (en) | Adjustable bone bolt with sleeve |
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: 20111207 Termination date: 20120505 |