CN209611288U

CN209611288U - A kind of casing and guide rod for fracture of odontoid process of vertebra dentata merging screw

Info

Publication number: CN209611288U
Application number: CN201821706588.2U
Authority: CN
Inventors: 刘成招
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2019-11-12
Anticipated expiration: 2028-10-22

Abstract

The utility model discloses a kind of casings and guide rod for fracture of odontoid process of vertebra dentata merging screw, including casing and guide rod, described sleeve pipe is hollow structure, one end is angle, the head of the guide rod is equipped with frustum cone structure, three perforative guide holes are opened up inside it, the guide hole is parallel with guide rod and three guide holes are located in approximately the same plane, guide hole is wherein located in the middle to be overlapped with the central axes of guide rod, the guide hole of two sides is pierced by from the inclined-plane on guide rod head, spacing between three guide holes is unequal, and the leader casing is in casing.The utility model can be protruded into vivo by casing and to stopping blooding at operation；Leader casing is in casing, guide pin is entered on insertion backbone by the guide hole in guide rod, the direction that can avoid guide pin shifts, simultaneously when being inserted into next piece of guide pin, guide pin is inserted by the same guide hole, it ensure that the position consistency between different guide pins, and set the guide hole different there are three position in guide rod, the position of guide pin can be adjusted.

Description

A kind of casing and guide rod for fracture of odontoid process of vertebra dentata merging screw

Technical field

The utility model relates to spinal surgery instrument fields, particularly belong to a kind of for fracture of odontoid process of vertebra dentata merging The casing and guide rod of screw.

Background technique

Odontoid fracture is one of serious cervical spine injury type, and incidence accounts for about the 10%-14% of fracture of cervical spine, is accounted for The 1%-2% of spine fracture, treatment difficulty are big.Fracture because of coup injury basal part nutrient artery or its ascending branch, so as to cause The blood supply wretched insufficiency of cdontoid process, that there are difficulty is big for treatment, risk is high, and the choosing between cervical stability and cervical vertebrate active degree Select difficult point.Anterior screw treatment of internal fixation of odontoid fracture art can be while rebuilding articulatio atlantoepistrophica stability, to the maximum extent Remain the motor function of articulatio atlantoepistrophica, it is not necessary to bone grafting, it is not necessary to strong outer fixation, screw to fracture end direct weighting, Promote fracture end healing, operation wound is small, union rate is high, significantly improves the quality of life of patient.II type of Anderson- It is its optimal adaptation card with shallow III type fracture, merging atlantoaxial dislocation can also be used this method and fix.Come from mechanics angle See that the art formula is referred to as " physiological reconstruction operations ".Since atlas and axis is in cranium vertebra join domain, anatomical position is deep, structure is multiple It is miscellaneous, it is considered as the danger zone of surgical operation, the hospital that can carry out upper cervical spine operation is relatively fewer.And traditional modus operandi master It is however emphasized that stabilization procedure, takes fracture or dislocation to perform the operation and fixes atlas and axis, achieve more satisfied stablizing effect.But such hand Art wound is larger, and secures articulatio atlantoepistrophica and lose function.Because fixing in clinical Odontid screw generally in neck 4-5 water Flat (thyroid cartilage lower edge) does transverse incision, and the approach notch is low, difficult exposure, and particularly with the short and thick patient of neck, part is suffered from Person can only row atlas and axis fix and lose articulatio atlantoepistrophica function.With the development of upper cervical spine surgery, Minimally Invasive Surgery and maximum limit Degree retains one of the trend that articulatio atlantoepistrophica function has become modern spinal surgery development.The preceding percutaneous screw internal fixation treatment dentata in road Dens fracture achieves certain curative effect, and many cases that should not lose articulatio atlantoepistrophica function is made to obtain satisfied effect.

A kind of minimally invasive safe and simple pedicle screw device and improvement operation method can be reduced operating difficulty and accurately set nail, reservation Patient's neck functional can be reduced the exposure damage of the x-ray in patient and patients surgery again.

Utility model content

To solve the above-mentioned problems, the utility model devises a kind of casing for fracture of odontoid process of vertebra dentata merging screw And guide rod, the utility model can accurately be inserted into guide pin, deviate guide pin direction not, and adjustable guide pin is inserted into Position.

In order to reach above-mentioned technical purpose, above-mentioned technical effect is realized, the utility model is achieved through the following technical solutions :

A kind of casing and guide rod for fracture of odontoid process of vertebra dentata merging screw, including casing and guide rod, it is characterised in that:

Described sleeve pipe is hollow structure, and one end is angle, and the head of the guide rod is equipped with frustum cone structure, inside open up three A perforative guide hole, the guide hole is parallel with guide rod and three guide holes are located in approximately the same plane, leads wherein being located in the middle Hole is overlapped with the central axes of guide rod, and the guide hole of two sides is pierced by from the inclined-plane on guide rod head, the not phase of the spacing between three guide holes Deng.

Further, the leader casing is in casing.

The beneficial effects of the utility model are: a kind of minimally invasive safe and simple pedicle screw device and improvement operation method can be reduced Operating difficulty and accurately set nail, retain patient's neck functional can be reduced that the x-ray in patient and patients surgery is exposed to be damaged again.The reality Operative site is reached with the novel casing percutaneous puncture, and backbone scope can look at lower positioning and right straight by casing operative region Stop blooding at operation；In casing, guide pin is entered on insertion backbone leader casing by the guide hole in guide rod, can avoid guide pin Direction shifts, while when being inserted into next piece of guide pin, is inserted into guide pin by the same guide hole, ensure that between different guide pins Position consistency, and set in guide rod there are three the different guide hole in position, the position of guide pin can be adjusted.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Other attached drawings.

Fig. 1 is the structural schematic diagram of the casing.

Fig. 2 is the side structure schematic diagram of the guide rod.

Fig. 3 is the sectional view of the guide rod.

Fig. 4 is the view of the tail portion of the guide rod.

In attached drawing, list of designations representated by each label is as follows:

1- casing, 2- guide rod, 21- guide hole.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts All other embodiment obtained, fall within the protection scope of the utility model.

Refering to fig. 1 shown in -4, a kind of casing 1 and guide rod for fracture of odontoid process of vertebra dentata merging screw, including 1 He of casing Guide rod 2, it is characterised in that:

Described sleeve pipe 1 is hollow structure, and one end is angle, and inclined-plane improvement is matched with dens axis inclined-plane, the guide rod 2 Head be equipped with frustum cone structure, inside open up three perforative guide holes 21, the guide hole 21 is parallel with guide rod 2 and three are led Hole 21 is located in approximately the same plane, is overlapped wherein being located in the middle guide hole 21 with the central axes of guide rod 2, and the guide holes 21 of two sides is from leading The inclined-plane on 2 head of bar is pierced by, and the spacing between three guide holes 21 is unequal.It is adjusted in operation using the different spacing of guide rod Guide pin direction position.

Further, 2 sets of the guide rod is in casing 1.

The following are the specific embodiments of the utility model, and the utility model is during surgery in use, patient takes dorsal position, In 1.5cm notch is done in annular cartilage horizontal side to the right in throat, under blunt separation to throat fascia, is inserted into guide rod from incision, with leading Lower edge before bar is separated to dentata places casing 1, takes out guide rod, is put into backbone scope, the lower edge before dentata centrum uses radio frequency electrical Pole handles lower edge before centrum center, and lower edge before hammering into centrum with guide pin takes out scope, is put into guide rod along guide pin, C arm X-ray machine is saturating The guide hole 21 of guide pin difference spacing is adjusted to adjust second piece of guide pin direction position according to positive side position guide pin position depending on positioning, if also It needs to finely tune, then is placed in third piece guide pin, fixed hollow screw is implanted into according to the guide pin of required position, reaches fixed purpose, Guide pin is taken out, then is put into the local circumstance of backbone endoscopy fixing screws through casing 1, looks at lower verifying local circumstance straight, if any Bleeding can directly stop blooding.

In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples In can be combined in any suitable manner.

The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory The content of bright book can make many modifications and variations.

Claims

1. a kind of casing and guide rod for fracture of odontoid process of vertebra dentata merging screw, including casing and guide rod, it is characterised in that:

Described sleeve pipe is hollow structure, and one end is angle, and the head of the guide rod is equipped with frustum cone structure, inside open up three and pass through The guide hole worn, the guide hole is parallel with guide rod and three guide holes are located in approximately the same plane, wherein be located in the middle guide hole with The central axes of guide rod are overlapped, and the guide hole of two sides is pierced by from the inclined-plane on guide rod head, and the spacing between three guide holes is unequal.

2. a kind of casing and guide rod for fracture of odontoid process of vertebra dentata merging screw according to claim 1, feature exist In: the guide rod can cover in casing.