CN201370624Y - Intramedullary interlocking nail with medicine injection function - Google Patents
Intramedullary interlocking nail with medicine injection function Download PDFInfo
- Publication number
- CN201370624Y CN201370624Y CN200920024271U CN200920024271U CN201370624Y CN 201370624 Y CN201370624 Y CN 201370624Y CN 200920024271 U CN200920024271 U CN 200920024271U CN 200920024271 U CN200920024271 U CN 200920024271U CN 201370624 Y CN201370624 Y CN 201370624Y
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- nail
- nail body
- medicine
- medicine injection
- intramedullary
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Abstract
The utility model discloses an intramedullary interlocking nail with medicine injection function, which belongs to the technical field of medical instruments. The intramedullary interlocking nail with medicine injection function comprises a nail body (1), wherein, the head of the nail body (1) adopts a conical importer (2), and the front end of the conical importer (2) is in the shape of a circular arc. The intramedullary interlocking nail capable of inserting medicine is characterized in that a locking screw hole (3) is formed at the tail end of the nail body (1); a positioning lock pin hole (4) is formed on the conical importer (2); a hollow channel (5) is formed in the nail body (1); a medicine injection hole (6) is formed on the outer wall of the nail body (1); the medicine injection hole (6) is communicated with the hollow channel (5); and the rear end of the hollow channel (5) is communicated with an injector (8) through a catheter (7). The intramedullary interlocking nail with medicine injection function can be fixed firmly, and enlarges the application range of intramedullary nails; when the intramedullary interlocking nail fixes bone fracture, antibiotic liquid medicine permeates to surrounding tissues from the medicine injection hole on the nail body, so that myelitis can be prevented and treated effectively, the treatment effect can be improved, and the pains of patients can be alleviated.
Description
Technical field
This utility model relates to the improvement of a kind of orthopaedics with intramedullary pin, belongs to technical field of medical instruments, but a kind of specifically medicine infusion type interlocking intramedullary nail.
Background technology
At present, the appearance of interlocking intramedullary nail has almost solved the fixedly all problems of aspect of long bone shaft fracture.Interlocking intramedullary nail is a kind of orthopaedic medical treatment utensil, be used for fixing tubular bone fracture, when treatment, intramedullary pin is penetrated in the medullary cavity of tubular bone of fracture, two sections skeletons of fracture are connected and fixed, and this inside-fixture therapeutic modality obtains numerous doctors and patient's favor with its remarkable curative effect.The nail body of existing interlocking intramedullary nail mostly is circular long metallic rod, have fixing hole on the nail body, the centrage of fixing hole intersects with the centrage of nail body, during use, pass fixing hole on skeleton and the intramedullary pin with lock-screw, skeleton and intramedullary pin are linked together.Fixing hole operated by rotary motion on the intramedullary pin commonly used at present makes intramedullary pin and osseous tissue link together in this way and fixes fracture site at the leading section and the rear portion of intramedullary pin; But the tail end of intramedullary pin does not have fixed groove or fixing hole, and after the fracture line position was leaned on, when surpassing the fixed groove at intramedullary pin rear portion or fixing hole, intramedullary pin is fracture site fixedly, makes intramedullary pin ineffective, has limited the scope of application of intramedullary pin.
In addition, the clinician then dare not use inside-fixture easily when running into the concurrent myelitic patient of open fracture and postoperative, perhaps only under very strict condition, take a risk to use, although thorough debridement during because perform the operation, use medicining liquid dipping repeatedly, still have patient to lapse to and be osteomyelitis, and as long as there has been inside-fixture the part, it has just become the sanctuary of antibacterial, and osteomyelitis can't be cured.To the main at present external fixer that uses of this patient, but external fixer is because the design problem of itself, there are many defectives, may bring many severe complications to the patient, it can not solve far away the myelitic treatment problem of fracturing, and can only be used for some special circumstances as the additional measure of inside-fixture.Therefore, the clinician is among the contradiction that often faces a difficult selection when the above-mentioned patient, and this contradiction perplexed orthopaedics educational circles for many years, does not find an effective solution route yet.In addition, behind the closure long bone shaft fracture internal fixation, osteomyelitis person being taken place also often occur, does not still have suitable internal fixation product for this class patient.
Summary of the invention
The purpose of this utility model is to provide a kind of lock-screw and intramedullary pin of can not only making fixing easily, and in the fracture internal fixation, can treat and prevent myelitic, but medicine infusion type interlocking intramedullary nail easy to use, that can improve therapeutic effect.
For reaching above purpose, the technical scheme that this utility model adopted is: but be somebody's turn to do the medicine infusion type interlocking intramedullary nail, constitute by the nail body, the head of nail body is for importing awl, the front end that imports awl is circular-arc, circular-arc importing awl is convenient to insert fracture site, it is characterized in that being provided with screw hole at the afterbody of nail body, on the importing awl, be provided with the dowel pin hole, nail body and osseous tissue can be fixed as one by screw hole and dowel pin hole, the nail body can be connected and fixed by bolt with osseous tissue in its length range, therefore need only fracture line in the length range of nail body, can use fixedly fracture site of intramedullary pin, thereby enlarged the scope of application, in the nail body, be provided with hollow pipeline, on the outer wall of nail body, be provided with medicine-pouring hole, medicine-pouring hole is connected with hollow pipeline, the rear end of hollow pipeline is connected with syringe by conduit, so that medicinal liquid flows into the surrounding tissue from medicine-pouring hole through hollow pipeline, thereby play treatment and prevent myelitic effect, but the injection speed of medicinal liquid and pressure artificial adjustment, syringe can make things convenient for the patient to carry.This utility model is also implemented by following measure: described medicine-pouring hole to arranged spaced, and along the circumferentially evenly configuration of nail body, makes medicinal liquid evenly spread surrounding tissue along the nail axon, can play better therapeutic effect.When using this utility model, to follow closely body by screw hole and dowel pin hole is fixed in the bone, conduit is connected and is retained on the intravital interface, and be connected with the sealing joint of nail body afterbody, another interface is drawn outside the skin and is docked with syringe, with syringe injection of antibiotics medicinal liquid in the hollow pipeline of nail body, medicinal liquid is behind conduit, hollow pipeline, medicine-pouring hole, spread focus and surrounding tissue place, play the effect of anti-inflammation, in use, conduit can be sticked on the skin with paster, prevent from.
The beneficial effects of the utility model are: compare with the intramedullary pin of present use, fixation, by the medicine injecting device that is connected with the hollow pipeline of following closely body, solved the problem that open long bone shaft fracture and postoperative osteomyelitis (co) should not use inside-fixture, enlarged the scope of application of intramedullary pin, and in the fixing fracture of intramedullary pin, the antibiotic medicinal liquid can be spread in the surrounding tissue from the medicine-pouring hole of following closely on the body, effectively prevent and treatment osteomyelitis, improve therapeutic effect, alleviated patient's misery.
Description of drawings
Fig. 1 looks sketch map for structure master of the present utility model.
Fig. 2 is the cross-sectional schematic of nail body of the present utility model along its axis.
The specific embodiment
Make this utility model with reference to accompanying drawing 1,2.But be somebody's turn to do the medicine infusion type interlocking intramedullary nail, constitute by nail body 1, the head of nail body 1 is for importing awl 2, the front end that imports awl 2 is circular-arc, circular-arc importing awl 2 is convenient to insert fracture site, it is characterized in that being provided with screw hole 3 at the afterbody of nail body 1, on importing awl 2, be provided with dowel pin hole 4, nail body 1 can be fixed as one with osseous tissue by screw hole 3 and dowel pin hole 4, the nail body can be connected and fixed by bolt with osseous tissue in its length range, therefore need only fracture line in the length range of nail body, can use fixedly fracture site of intramedullary pin, thereby enlarged the scope of application, in nail body 1, be provided with hollow pipeline 5, on the outer wall of nail body 1, be provided with medicine-pouring hole 6, medicine-pouring hole 6 is connected with hollow pipeline 5, the rear end of hollow pipeline 5 is connected with syringe 8 by conduit 7, so that medicinal liquid flows into the surrounding tissue from medicine-pouring hole 6 through hollow pipeline 5, thereby play treatment and prevent myelitic effect, but the injection speed of medicinal liquid and pressure artificial adjustment, syringe 8 can make things convenient for the patient to carry.Described medicine-pouring hole 6 is along the configuration of nail body 1 axially spaced-apart, and circumferentially evenly configuration of edge nail body 1, makes medicinal liquid evenly spread surrounding tissue, can play better therapeutic effect.
Claims (2)
- But 1, a kind of medicine infusion type interlocking intramedullary nail, constitute by nail body (1), the head of nail body (1) is for importing awl (2), the front end that imports awl (2) is circular-arc, it is characterized in that being provided with screw hole (3) at the afterbody of nail body (1), on importing awl (2), be provided with dowel pin hole (4), in nail body (1), be provided with hollow pipeline (5), on the outer wall of nail body (1), be provided with medicine-pouring hole (6), medicine-pouring hole (6) is connected with hollow pipeline (5), and the rear end of hollow pipeline (5) is connected with syringe (8) by conduit (7).
- But 2, medicine infusion type interlocking intramedullary nail according to claim 1 is characterized in that described medicine-pouring hole (6) along the configuration of nail body (1) axially spaced-apart, and along circumferentially evenly configuration of nail body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920024271U CN201370624Y (en) | 2009-03-27 | 2009-03-27 | Intramedullary interlocking nail with medicine injection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920024271U CN201370624Y (en) | 2009-03-27 | 2009-03-27 | Intramedullary interlocking nail with medicine injection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201370624Y true CN201370624Y (en) | 2009-12-30 |
Family
ID=41496704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920024271U Expired - Fee Related CN201370624Y (en) | 2009-03-27 | 2009-03-27 | Intramedullary interlocking nail with medicine injection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201370624Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101991460A (en) * | 2010-11-16 | 2011-03-30 | 张英泽 | Gas-liquid two-phase intramedullary nail |
| CN106580410A (en) * | 2016-12-23 | 2017-04-26 | 常州市康辉医疗器械有限公司 | Anti-infection external fixation hollow spicule with tail cap and injection hole |
| CN108186057A (en) * | 2018-01-29 | 2018-06-22 | 三明学院 | A kind of marrow puncture needle |
| EP3888576A1 (en) | 2020-03-31 | 2021-10-06 | Heraeus Medical GmbH | Intramedullary nail for application of pharmaceutical fluids |
-
2009
- 2009-03-27 CN CN200920024271U patent/CN201370624Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101991460A (en) * | 2010-11-16 | 2011-03-30 | 张英泽 | Gas-liquid two-phase intramedullary nail |
| CN106580410A (en) * | 2016-12-23 | 2017-04-26 | 常州市康辉医疗器械有限公司 | Anti-infection external fixation hollow spicule with tail cap and injection hole |
| CN108186057A (en) * | 2018-01-29 | 2018-06-22 | 三明学院 | A kind of marrow puncture needle |
| EP3888576A1 (en) | 2020-03-31 | 2021-10-06 | Heraeus Medical GmbH | Intramedullary nail for application of pharmaceutical fluids |
| US11751921B2 (en) | 2020-03-31 | 2023-09-12 | Heraeus Medical Gmbh | Intramedullary nail for the application of pharmaceutical fluids |
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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: 20091230 Termination date: 20100327 |