CN207370730U - A kind of laminectomy retractor of anterior cervical operation - Google Patents

Abstract

The utility model discloses a kind of laminectomy retractor of anterior cervical operation, including sequentially connected head, body portion and afterbody；The head is fixedly connected with afterbody by body portion, and the head is 45 degree in the radian value of axial position radian, is 60 degree in the radian value of coronal-plane radian, and radian value of the afterbody in axial position is 180 degree；On axial position, the angle on the body portion and head is 90 degree；The head includes preceding side pole and end bar, and preceding side pole one end fixture body, the preceding side pole other end connection end bar, the preceding side pole is with end bar with radian.The drawing structure of the utility model-head can make pulling portion position on space multistory using double radian space curved surface designs（On coronal-plane and axial face）, the tissue of internal organ sheath and nervus vasculairs sheath can be effectively retracted, while extrusion stress of the drag hook edge to perienchyma's structure can be reduced again.The utility model has the characteristics of small to patient organ's damage, comfort is good.

Description

A kind of laminectomy retractor of anterior cervical operation

Technical field

The utility model belongs to the field of medical instrument technology, more particularly to a kind of laminectomy retractor of anterior cervical operation.

Background technology

Cervical vertebra plate drag hook is necessary surgical instrument in anterior cervical operation.Traditional laminectomy retractor 1'（Such as Fig. 1-2 institutes Show）In order to appear cervical vertebra front side structure, it is necessary to retract oesophagus tracheae sheath inwardly, retract nervus vasculairs sheath outward.It is performing the operation In the process, if without pulling out above-mentioned organ and tissue very well, the operating field of doctor, which appears, to be not enough, in surgical procedure In it is possible that accidentally injure, bring difficulty to fixation in the decompression fusion of anterior approach.In addition in surgical procedure, it is often necessary to compared with It is pulled for a long time using traditional laminectomy retractor 1', as shown in figure 3, when traditional cervical vertebra drag hook 1' drawings open oesophagus tracheae sheath 2', The edge of traditional laminectomy retractor 1' easily squeezes oesophagus, tracheae and big blood vessel, causes iatrogenic damage, especially drag hook edge Part more easy damaged.

Utility model content

The utility model discloses a kind of laminectomy retractor of the anterior cervical operation of double radian space curved surface structures, have pair The characteristics of patient organ's damage is small, and comfort is good.

In order to achieve the above objectives, the concrete scheme of the utility model is as follows：

A kind of laminectomy retractor of anterior cervical operation, including sequentially connected head, body portion and afterbody；The head and tail Portion is fixedly connected by body portion, and the head is 45 degree in the radian value of axial position radian, is in the radian value of coronal-plane radian 60 degree, radian value of the afterbody in axial position is 180 degree；On axial position, the angle on the body portion and head is 90 degree；It is described Head includes preceding side pole and end bar, and preceding side pole one end fixture body, the preceding side pole other end connects end bar, described Preceding side pole has radian with end bar.

According to organization of human body, particularly oesophagus tracheae sheath position, the arc range is between 90~135 degree.It is preferred that Ground, the preceding side pole are in that radian is 120 degree with end bar.The front end pole length is 80~120mm.Preferably, it is described Front end pole length is 100mm.

To add the frictional force of hand, enhance surgical flexibility, the body portion back side is provided with several finger slots.

Using double radian space curved surface structures, edge designs are smooth arc on the drawing position of the utility model-head Structure can make pulling portion position on space multistory（On coronal-plane and axial face）, can effectively retract internal organ sheath and blood vessel The tissue of neurolemma, while extrusion stress of the drag hook edge to perienchyma's structure can be reduced again.Particularly in art for a long time Retract oesophagus, tracheae or during big blood vessel, reduce cervical vertebra drag hook and pull damage to mucous membrane blood vessel, preferably protect internal organs and Big blood vessel.In addition, the cervical vertebra plate drag hook can use smaller traction dynamics since double radian space curved surfaces at edge design And reach preferable drawing and appear effect, the effect shieldinged surrounding tissues from is also played from another angle.Finally, this practicality is new The head of type and afterbody can not only be expanded surgical field of view, but also can be met patient in art using different radian curved designs The requirement of operating space variation.

Description of the drawings

Fig. 1 is the side view of traditional laminectomy retractor；

Fig. 2 is the top view of traditional laminectomy retractor；

Fig. 3 is the surgical state schematic diagram of traditional laminectomy retractor（Including oesophagus tracheae sheath）；

Fig. 4 is the structure diagram of the utility model；

Fig. 5 is the surgical state schematic diagram of the utility model（Including cervical vertebra and oesophagus tracheae sheath）；

Fig. 6 is the surgical state schematic diagram of the utility model part（Only show head）；

Fig. 7 is the top view in the utility model body portion.

The label declaration of Fig. 1-3

Traditional laminectomy retractor 1', oesophagus tracheae sheath 2'.

The label declaration of Fig. 4-7

A kind of laminectomy retractor 1 of anterior cervical operation, oesophagus tracheae sheath 2, cervical vertebra 3, head 4, preceding side pole 41, end bar 42, body portion 5 refers to slot 51, afterbody 6, groove 7, vein 8, artery 9.

Specific embodiment

It is in order to make those skilled in the art better understand the technical solutions in the application, real below in conjunction with the application The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common Technical staff's all other embodiments obtained without making creative work should all belong to the application protection Scope.

Define explanation：The connotation and extension of " the axial position " of the present embodiment is identical with " side plane " or " sagittal plane ".

The laminectomy retractor 1 of a kind of anterior cervical operation, as illustrated in figures 4-5, including sequentially connected head 4, body portion 5 and tail Portion 6.The head 4 is fixedly connected with afterbody 6 by body portion 5.Body portion 5 is not provided with radian, and the body portion 5 is plate, such as Fig. 7 It is shown, the head 4 and the extension that afterbody 6 is plate-like body 5（Width and thickness are constant）.The head 4 is in axial position（Again Claim " side plane " or " sagittal plane "）With radian is both provided on coronal-plane, be specially：The head is in the radian of axial position radian It is worth for 45 degree, is 60 degree in the radian value of coronal-plane radian, radian value of the afterbody in axial position is 180 degree.On axial position, The angle on the body portion and head is 90 degree.Double radian space curved surfaces design on the head 4, can make head 4 in space The contact area with perienchyma can be increased in solid (on coronal-plane and in axial face), it should so as to reduce local compression Power can be realized with larger area to the Maximum Contacts of internal organs, realized and reached in small space to internal organ and tissue most Big effectively traction, so preferably protects oesophagus and tracheae.

The head 4 includes preceding side pole 41 and end bar 42, preceding 41 one end fixture body 5 of side pole, the preceding side pole 4 other ends connect end bar 42, and the preceding side pole 41 is with end bar 42 in certain radian, and arc range is 90~135 Between degree, in the embodiment of the present application, preceding side pole 41 and end bar 42 are in that radian is about 120 degree.In order to facilitate in operation Doctor operates, and in the embodiment of the present application, the length of preceding side pole 41 is in 80~120mm, preferably 100mm.

As shown in Figure 6.Shown arrow direction is the direction of drag hook drawing.Doctor holds drag hook body portion 5 and is led from side Oesophagus tracheae sheath 2 is opened, this double radian space curved surface designs can substantially reduce drawing stress of the drag hook edge to perienchyma, In surgical procedure, the body portion 5 of cervical vertebra plate drag hook provided by the embodiments of the present application is matt metal surface, eliminates shadowless lamp lamp The emergency light reflex that light generates, avoids strong polished bard eye, performs the operation convenient for doctor.Using two the application cervical vertebra plate drag hook into During row operation, two cervical vertebra plate drag hook heads 4 can form cervical vertebra with the groove 7 on the back side of 2 contact surface of trachealgia sheath The passage of anterior approach is conducive to protect trachealgia and the big vascular tissue in periphery.

As shown in fig. 7,5 back side of body portion is provided with several finger slots 51, for adding the frictional force of hand, Yi Shengshi When border operates, using finger grips said handle, meet doctor and gently knead the operation hand-type gently drawn, can preferably go in control operation Power, be conducive to doctor and implement more flexible fine and smooth surgical procedure, avoid in operation due to power control it is improper to disease It is artificial into unexpected injury.And ergonomics is considered in the shape of handle, size, the design that refers to slot, meets human finger Shape, make doctor more comfortable when using.

The drawing structure of the utility model-head 4 can make pulling portion position in sky using double radian space curved surface designs Between in solid（On coronal-plane and axial face）, the tissue of internal organ sheath and nervus vasculairs sheath can be effectively retracted, while can be subtracted again Small drag hook edge is to the extrusion stress of perienchyma's structure.When retracting oesophagus, tracheae or big blood vessel for a long time particularly in art, Reduce damage of the cervical vertebra drag hook drawing to mucous membrane blood vessel, preferably protect internal organs and big blood vessel.In addition the utility model head Portion 4 and afterbody 6 use different radian curved designs, can not only expand surgical field of view, but also can meet patient to being operated in art The requirement of spatial variations.

Claims (6)

1. a kind of laminectomy retractor of anterior cervical operation, it is characterised in that：Including sequentially connected head, body portion and afterbody；Institute It states head to be fixedly connected by body portion with afterbody, the head is 45 degree in the radian value of axial position radian, in coronal-plane radian Radian value be 60 degree, the afterbody axial position radian value be 180 degree；On axial position, the angle on the body portion and head It is 90 degree；The head includes preceding side pole and end bar, preceding side pole one end fixture body, the preceding side pole other end connection End bar, the preceding side pole have radian with end bar.

2. a kind of laminectomy retractor of anterior cervical operation according to claim 1, it is characterised in that：The arc range exists Between 90~135 degree.

3. a kind of laminectomy retractor of anterior cervical operation according to claim 2, it is characterised in that：The preceding side pole with End bar is in that radian is 120 degree.

4. a kind of laminectomy retractor of anterior cervical operation according to claim 1, it is characterised in that：The front end pole length For 80~120mm.

5. a kind of laminectomy retractor of anterior cervical operation according to claim 4, it is characterised in that：The front end pole length For 100mm.

6. a kind of laminectomy retractor of anterior cervical operation according to claim 1, it is characterised in that：The body portion back side is set It is equipped with several finger slots.