CN209678620U - A kind of osteotome - Google Patents

Abstract

The utility model relates to a kind of osteotome, including knife handle, upper knife bar, lower knife bar and curved arc shape blade, upper knife bar one end connect with knife handle, and the upper knife bar other end is connect with lower knife bar, and blade is mounted on lower knife bar, and there is blade in the end of blade bending direction；Lower knife bar is connect by locking-type universal joint with upper knife bar, and locking-type universal joint is mounted on knife bar, and lower knife bar is detachably connected with locking-type universal joint.The utility model blade shapes are coincide with the shape of processed bone is needed, conducive to making the bone of necrosis remove more thorough；Lower knife bar is detachably connected with upper knife bar, different knives can be needed to install according to the osteotomy of different parts, it is adjustable the direction of osteotome again, greatly improve the efficiency of osteotomy in bone surgery, shorten operating time, it also reduces and is damaged caused by patient because of excessively bone tissue is exposed simultaneously, there is vast application prospect and Social benefit and economic benefit.

Description

A kind of osteotome

Technical field

The utility model relates to the field of medical instrument technology more particularly to a kind of osteotomes.

Background technique

Osteotome is one of common instrument in bone surgery, and traditional osteotome is based on straight type, in some bone surgeries (such as The cleaning of femoral head lesion) it is difficult to reach the effect of comprehensive removing bone tissue.

Utility model content

The utility model is intended to provide osteotome, conducive to making the bone of necrosis remove more thorough.

In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:

A kind of osteotome, including knife handle, upper knife bar, lower knife bar and curved arc shape blade, upper knife bar one end connect with knife handle, on The knife bar other end is connect with lower knife bar, and blade is mounted on lower knife bar, and there is blade in the end of blade bending direction.

Further, lower knife bar is detachably connected with upper knife bar.

Further, blade and lower knife bar are integrally manufactured.

Further, lower knife bar is connect by locking-type universal joint with upper knife bar.

Further, locking-type universal joint is mounted on knife bar, and lower knife bar detachably connects with locking-type universal joint It connects.

Compared with prior art, the utility model has the following beneficial effects:

1, blade is curved arc shape in the utility model, is coincide with the shape of processed bone is needed, conducive to the bone for making necrosis Head is removed more thorough, while removing speed can be improved；

2, osteotome uses detachable combination form, can need to install different knives according to the osteotomy of different parts, expands The scope of application, save the cost；

3, the direction of knife bar, keeps upper and lower upper slitter rod at a certain angle under the adjustable lower part of locking-type universal joint, To adapt to the needs of complicated bone surgery.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment one；

Fig. 2 is the main view of lower knife bar and blade in embodiment one；

Fig. 3 is the side view of lower knife bar and blade in embodiment two；

Fig. 4 is the structural schematic diagram of embodiment three；

In figure: knife bar, 4- blade, 5- blade, 6- ready-packaged joint, 7- locking-type Universal connector under the upper knife bar of 1- knife handle, 2-, 3- Head.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality It is further elaborated with novel.

Embodiment one

As shown in Figure 1, 2, osteotome disclosed in the present embodiment, including knife handle 1, upper knife bar 2, lower knife bar 3 and curved arc shape knife Piece 4, upper 2 one end of knife bar are connect with knife handle 1, and upper 2 other end of knife bar is connect with lower knife bar 3, and blade 4 is mounted on lower knife bar 3, knife There is blade 5 in the end of 4 bending direction of piece.

Blade is curved arc shape in the present embodiment, so that blade shapes are coincide with the shape of processed bone is needed, conducive to making The bone of necrosis is removed more thorough, while removing speed can be improved.It is particularly suitable for cleaning femoral head lesion.

Embodiment two

The difference between this embodiment and the first embodiment lies in: lower knife bar 3 is detachably connected with upper knife bar 2 in the present embodiment, such as Shown in Fig. 3, there is the ready-packaged joint 6 for connecting with upper knife bar 2 in lower 3 one end of knife bar.Blade 4 and lower knife bar 3 are integrally manufactured.

The present embodiment uses detachable combination form, can need to install different knives according to the osteotomy of different parts, expands The big scope of application, save the cost.

Embodiment three

The present embodiment and the difference of embodiment one or two are: as shown in figure 4, lower knife bar 3 passes through locking-type universal joint 7 It is connect with upper knife bar 2.Locking-type universal joint 7 is mounted on knife bar 2, and lower knife bar 3 detachably connects with locking-type universal joint 7 It connects.

Locking-type universal joint 7 can select the identical structure of screw interface universal ball holder bracket, upper knife bar 2 and its Screw socket is threadedly coupled, and lower knife bar 3 is threadedly coupled with ball rod.Certainly, locking-type universal joint 7 can also select the prior art In other locking type universal joints, details are not described herein again.

Locking-type universal joint 7, the adjustable lower subordinate of locking-type universal joint 7 is arranged in the present embodiment on upper knife bar 2 The direction of knife bar 3 keeps upper and lower upper slitter rod at a certain angle, traditional straight type osteotome is improved as universal osteotome, to adapt to The needs of complicated bone surgery.Locking-type universal joint 7 can dispose the lower knife bar 3 with different shape blade, applied widely.

The utility model blade shapes are coincide with the shape of processed bone is needed, conducive to making the bone of necrosis remove more Thoroughly；Lower knife bar is detachably connected with upper knife bar, can need to install different knives according to the osteotomy of different parts, and be adjustable bone The direction of knife greatly improves the efficiency of osteotomy in bone surgery, shortens operating time, while also reducing because excessively exposing bone group It knits and the damage caused by patient, there is vast application prospect and Social benefit and economic benefit.

Certainly, the utility model can also have other numerous embodiments, without departing substantially from the spirit of the present invention and its essence In the case where, those skilled in the art can make various corresponding changes and modifications, but these according to the utility model Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.

Claims (3)

1. a kind of osteotome, it is characterised in that: including knife handle, upper knife bar, lower knife bar and curved arc shape blade, upper knife bar one end and knife Handle connection, the upper knife bar other end connect with lower knife bar, and blade is mounted on lower knife bar, lower knife bar pass through locking-type universal joint and Upper knife bar connection, locking-type universal joint are mounted on knife bar, and lower knife bar and locking-type universal joint are detachably connected blade There is blade in the end of bending direction, can need to install different knives according to the osteotomy of different parts.

2. osteotome according to claim 1, it is characterised in that: lower knife bar is detachably connected with upper knife bar.

3. osteotome according to claim 1 or 2, it is characterised in that: blade and lower knife bar are integrally manufactured.