CN208492293U

CN208492293U - A kind of magnetic guiding device for intramedullary nail implantation

Info

Publication number: CN208492293U
Application number: CN201820104715.5U
Authority: CN
Inventors: 谢亮文; 刘忠国; 林建春
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-23
Filing date: 2018-01-23
Publication date: 2019-02-15
Anticipated expiration: 2028-01-23

Abstract

The utility model relates to a kind of magnetic guiding devices for intramedullary nail implantation, conducting wire and one end including working column, sleeve inner core, Kirschner wire, core drill, spring-backed quill, one end with magnet A have the elastic guiding bar of magnet B, described sleeve pipe inner core, core drill and spring-backed quill can be inserted in working column respectively, the Kirschner wire can be passed through by the mesoporous of core drill and sleeve inner core, the conducting wire can be passed through by spring-backed quill mesoporous, and the diameter of magnet A is greater than spring-backed quill internal diameter.By long tubular bone fracture, remote, proximal end is cascaded the guide, facilitates the reset of fracture site and maintains reset state, facilitates the merging of intramedullary nail, easy to operate, has tight security, accuracy and validity；Postoperative complication is reduced, and X-ray examination number can be reduced, doctor and patient is protected, increases operation safety.

Description

A kind of magnetic guiding device for intramedullary nail implantation

Technical field

The utility model relates to a kind of magnetic guiding devices for intramedullary nail implantation.

Background technique

Femoral shaft, fracture of shaft of tibia are the common long bone fractures of orthopaedics, and at present, operation uses Intramedullary nailing Long tubular bone fracture has been acknowledged as a kind for the treatment of method of standard.When wearing intramedullary nail guide pin, need to answer fracture site Position, ossis is folded, so that guide pin is walked.Patient passes through the traction strength of arm when carrying out the reset of fracture site The progress reduction of the fracture, but what this process usually carried out in closed condition, patient can not detect by an unaided eye, and give intramedullary nail Implantation cause difficulty；Whether the reset of fracture site and determining guide pin successfully penetrate the ossis of fracture distal end, it is also necessary to Reusability C arm machine fluoroscopic observation, not only operating time is long, thus also increases the dose of radiation of X-ray suffered by patient.

Utility model content

In view of this, the purpose of the utility model is to provide a kind of easy to operate, it is easy to use to be implanted into for intramedullary nail Magnetic guiding device.

The utility model is realized using following scheme: a kind of magnetic guiding device for intramedullary nail implantation, including work set Pipe, sleeve inner core, Kirschner wire, core drill, spring-backed quill, one end conducting wire and one end with magnet A have the elasticity of magnet B Guiding bar, described sleeve pipe inner core, core drill and spring-backed quill can be inserted in working column respectively, and the Kirschner wire can be by hollow It bores and the mesoporous of sleeve inner core passes through, the conducting wire can be passed through by spring-backed quill mesoporous, and the diameter of magnet A is greater than in spring-backed quill Diameter.

Further, described sleeve pipe inner core front end is in bullet-shaped, and casing rear end is provided with diameter greater than in working column The head of diameter；Working column one end is provided with handle, and the other end is provided with sawtooth portion, has in elastic collar and elastic guiding bar Scale marker.

Compared with prior art, the utility model has the following beneficial effects: the utility model is for intramedullary nail implantation By long tubular bone fracture, remote, proximal end is cascaded magnetic guiding device, facilitates the reset of fracture site and maintains reset state, Facilitate the merging of intramedullary nail, it is easy to operate, there is tight security, accuracy and validity；With the marrow of existing clinical use The instruments such as interior nail can match, and can reduce deformation displacement and biotic environment destruction that fracture site is caused because resetting repeatedly, subtract Few postoperative complication, and X-ray examination number can be reduced, doctor and patient is protected, operation safety is increased.

For the purpose of this utility model, technical solution and advantage is more clearly understood, specific embodiment will be passed through below And relevant drawings, the utility model is described in further detail.

Detailed description of the invention

Fig. 1 is the utility model embodiment working column, sleeve inner core and Kirschner wire three's combination diagram；

Fig. 2 is the utility model embodiment working column, core drill and Kirschner wire three's combination diagram；

Fig. 3 is the conducting wire and spring-backed quill combination diagram of the utility model embodiment magnet carrier A；

Fig. 4 is the utility model embodiment elasticity guiding bar organigram；

Fig. 5 is the utility model embodiment use process step (1) schematic diagram；

Fig. 6 is the utility model embodiment use process step (3) schematic diagram；

Fig. 7 is the utility model embodiment use process step (4) schematic diagram；

Fig. 8 is the utility model embodiment use process step (5) schematic diagram；

Figure label explanation: 100- working column, 200- sleeve inner core, 300- Kirschner wire, 400- core drill, 500- elasticity Casing, 600- conducting wire, 610- magnet A, 700- elasticity guiding bar, 710- magnet B.

Specific embodiment

As shown in Fig. 1 ~ 8, a kind of magnetic guiding device for intramedullary nail implantation, including working column 100, sleeve inner core 200, conducting wire 600 and one end with magnet A610 of Kirschner wire 300, core drill 400, spring-backed quill 500, one end have magnet The elastic guiding bar 700 of B710, the elastic guiding bar other end are provided with handle, and elastomeric spring one end is also equipped with handle, described Sleeve inner core 200, core drill 400 and spring-backed quill 500 can be inserted in respectively in working column 100, and the Kirschner wire 300 can be by The mesoporous of core drill 400 and sleeve inner core 200 passes through, and sleeve inner core 200 can slide between working column and Kirschner wire, described Conducting wire 600 can be passed through by 500 mesoporous of spring-backed quill, and the diameter of magnet A610 is greater than 500 internal diameter of spring-backed quill.

The utility model is used for the magnetic guiding device that intramedullary nail is implanted into, and by long tubular bone fracture, remote, proximal end is cascaded, Facilitate the reset of fracture site and maintain reset state, simply had an X-rayed, guide pin is inducted into fracture distal end, facilitates intramedullary nail Merging, it is easy to operate, have tight security, accuracy and validity；With the instruments such as the intramedullary nail of existing clinical use It can match, the deformation displacement and biotic environment destruction that fracture site is caused because resetting repeatedly can be reduced, it is concurrent to reduce operation Disease, and X-ray examination number can be reduced, doctor and patient is protected, operation safety is increased.

In the present embodiment, described sleeve pipe inner core front end is in bullet-shaped, for opening a way in soft tissue；Casing rear end is set It is equipped with the head that diameter is greater than working column internal diameter；Working column one end is provided with handle, controls movement and the side of working column To the other end is provided with sawtooth portion (not shown), increases the frictional force with cortical bone interface；Elastic collar and elasticity guidance There is scale marker, the impermeable X-ray of conducting wire on bar.

In the present embodiment, magnet B and the diameter of elastic guiding bar are less than the internal diameter of femoral shaft, tibial shaft pulp cavity.

The use process of the magnetic guiding device being implanted into for intramedullary nail: (1) the diagonal merging gram on fracture distal end backbone Family name's needle reaches ossis, is inserted into working column and sleeve inner core to diaphyseal bone cortex surface by Kirschner wire, extraction sleeve inner core will Core drill is inserted into working column by Kirschner wire and is drilled on backbone, as shown in Figure 5；(2) after taking out Kirschner wire and core drill, The conducting wire of magnet carrier A is passed through into spring-backed quill, magnet A is located at spring-backed quill front end, and spring-backed quill passes through with conducting wire and magnet A Working column and drilling extend to ossis, and persistently push to fracture site level；(3) fracture proximal end merging magnet carrier B's Elastic guiding bar equally pushes to fracture site level, as shown in Figure 6；(4) on the magnet A on conducting wire and elastic guiding bar Magnet B is mutually attached together, and adsorbs firm backed off after random elasticity guiding bar, and magnet A is also pulled out with conducting wire to fracture proximal end It opens at marrow, fracture is remote, proximal end is connected into function, as shown in Figure 7；(5) conducting wire is tightened, it is under the guidance of conducting wire, spring-backed quill is suitable Gesture insertion fracture proximal end simultaneously persistently pushes to out at marrow, as shown in Figure 8；(6) conducting wire for pulling out magnet carrier A, passes through spring-backed quill It is inserted into intramedullary nail guide pin, lower confirmation guide pin is had an X-rayed by fracture site, spring-backed quill can be extracted, then pass through intramedullary nail guide pin Smoothly place intramedullary nail.

Above-listed preferred embodiment has been further described the purpose of this utility model, technical solution and advantage, It should be understood that the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical Within novel protection scope.

Claims

1. it is a kind of for intramedullary nail implantation magnetic guiding device, it is characterised in that: including working column, sleeve inner core, Kirschner wire, Core drill, spring-backed quill, one end conducting wire and one end with magnet A have the elastic guiding bar of magnet B, in described sleeve pipe Core, core drill and spring-backed quill can be inserted in working column respectively, and the Kirschner wire can be by core drill and sleeve inner core Hole passes through, and the conducting wire can be passed through by spring-backed quill mesoporous, and the diameter of magnet A is greater than spring-backed quill internal diameter.

2. the magnetic guiding device according to claim 1 for intramedullary nail implantation, it is characterised in that: before described sleeve pipe inner core End is in bullet-shaped, and casing rear end is provided with the head that diameter is greater than working column internal diameter；Working column one end is provided with handle, The other end is provided with sawtooth portion, has scale marker in elastic collar and elastic guiding bar.