CN201586068U

CN201586068U - Brain stereo-orientation device

Info

Publication number: CN201586068U
Application number: CN2009202052560U
Authority: CN
Inventors: 李彦文
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-09-22
Anticipated expiration: 2019-09-30

Abstract

The utility model discloses a brain stereo-orientation device, which has no blind zone in positioning, simple and convenient installation and guiding function, and comprises a skull fixator, a guiding arch and a guiding frame, wherein the skull fixator consists of a frame skull locating rack; the guiding arch is sleeved on the extension shaft of the skull fixator; and the guiding frame can move along the guiding arch. One end of the guiding arch adopting an arc of 120 degrees is sleeved on the extension shaft of the skull fixator, and the other end thereof is in a free state. By adopting the scheme, the blind zone problem in the frame for stereo-orientation is solved; no blind zone in positioning and simplified design are realized; and misoperation caused by complicated installation is avoided. Additionally, the stereo-orientation device can be applied to frame-free stereo-orientation after adopting the no blind zone design, solves the problem that frame-free stereo-orientation does not have guiding function, and realizes integrated brain stereo-orientation with frame and without frame.

Description

The brain stereotactic device

Technical field

This utility model belongs to medical mechanical domain, is used in the medical image positioning field, specifically is a kind of frameless and framework one stereo brain orienting instrument arranged.

Background technology

Neurosurgery operation and operation such as various punctures clinically all needs three-dimensional localization, and general locate mode has three kinds: locate without any need for equipment by the personal experience (1); (2) the framework brain stereotactic being arranged, is to have wound ground that the framework with three-dimensional coordinate system is installed on patient's head to position; (3) frameless stereotaxis, claim operation guiding system again, it is the combination of multi-field high-tech, it is a core with computer technology and 3-D view process software, utilize the theory of satellite positioning tech, provide lesion locations and the information that shows the operation real-time process in patient's art by infrared ray or electromagnetism remote sensing technology, the location undergos surgery.

Three kinds of above-mentioned modes at first first kind do not have rationale by personal experience location, everyone level also differs widely, the method only is fit to coarse localization, positioning accuracy can not guarantee.Second kind will have the wound ground installation headstock to patient before framework brain stereotactic operation is arranged under local anaesthesia, its benefit is to have the installation headstock in wound ground very firm, the positioning accuracy height, can satisfy the clinical requirement of functional neurosurgery surgery location 1mm with interior precision, and locating rack is arranged not only, also have leading truck, guarantee the stable anchor point that arrives of operating theater instruments; Its shortcoming is because local anaesthesia is installed the headstock, increases outside patient's the fear and misery, and orientation range is restricted, has the blind area, location, and especially the location of brain temporal lobe and occipital lobe is seriously limited.Also have, have the three-dimensional positioning head frame accessory of framework many, design loaded down with trivial detailsly, occur maloperation easily, influence positioning accuracy.It is exactly the scale of useful paint labelling on the positioning framework that a problem is arranged again, owing to will use iodine tincture and alcohol disinfecting before the operation, uses back paint to come off repeatedly, influences service life of equipment.The third frameless stereotaxis although be frameless, just was uneasy mounted head frame before patient's general anesthesia in fact, and when operation, the headstock still will be installed on patient's head after the general anesthesia, and its advantage is the location non-blind area, can the real-time tracking operating theater instruments.Its shortcoming is not have leading truck, and is limited aspect puncture, and positioning accuracy can not satisfy the demand of functional neurosurgery surgery about 3mm.

The utility model content

At the problems referred to above, this utility model aims to provide a kind of brain stereotactic device of locating non-blind area, simple installation and having guide function.

For realizing this technical purpose, scheme of the present utility model is: a kind of brain stereotactic device, comprise the head fixed apparatus formed by framework head locating rack, be nested with on described head fixed apparatus extension axle the guiding bow and can be along guiding bow mobile guide frame, two guiding folders are arranged on the described leading truck, there is scale mark in the outside of described framework, described guiding bow is the circular arcs of 120 degree, an end be nested with on head fixed apparatus extension axle, the other end is vacant.

Two guiding folders on the described leading truck adopt the platform uniform structure, can exchange up and down.

Described scale mark adopts the structure at transparent material reverse side reference mark.

This programme has solved the stereospecific blind zone problem that exists of framework, realizes the location non-blind area, and simplified design reduces because of the loaded down with trivial details maloperation that causes is installed; Solve non-blind area design back and just it can be applied on the frameless stereotaxis, solved the problem that frameless stereotaxis does not have guide function.Realization has framework and frameless integrated brain stereotactic.

Description of drawings

Fig. 1 is the overall structure figure of 180 degree guiding bow orienting devices of prior art.

Fig. 2 is the location fade chart of 180 degree guiding bow orienting devices of prior art.

Fig. 3 is that the side for sleeping in position of 180 degree guiding bow orienting devices of prior art can't installation diagram.

Fig. 4 is the overall structure figure of orienting device of the present utility model.

Fig. 5 is the framework outside scale mark figure of orienting device of the present utility model.

Fig. 6 is guiding clamping structure figure of the present utility model.

The specific embodiment

Shown in Fig. 1,2,3,4, former position finder needs the left and right sides to fix, the location when only suitable brain frontal cortex and top needs dorsal position owing to be 180 degree guiding bows; And when patient's brain temporal lobe and occipital lobe location needed lateral position, a side installation portion was moved to the field of operation below, caused to install limitedly, can't operate.

In addition, Fig. 3 is that 180 degree guiding bows can not carry out brain temporal lobe location, and 8 places can't inserting needle in structure.

This utility model has designed the guiding bow of one 120 degree, can left and right respectively, the preceding and one-sided installation of rear side (general uneasy pro-silhouette rings general anesthesia).Bend with 180 degree guiding when brain frontal cortex and top are located like this; Guiding with 120 degree during the brain occipital lobe location is bent an one-sided left side or the right side that is installed in framework; Guiding with 120 degree during brain temporal lobe location is bent, the one-sided rear side that is installed in framework, and the frontal lobe of brain, top, occipital lobe and temporal lobe can both obtain the location like this, realize the non-blind area location.

As shown in Figure 6, have two guiding folders are arranged on the framework stereo brain orienting instrument leading truck, two guiding folders originally are upward short long down, the platform of lacking above is thin, and the platform of following face length is thick, as above long being installed in, because the location mistake appears in the thick raising that setting base will occur of platform.This utility model has designed two on all four guiding folders, platform is consistent with original weak point, the total length of two guiding folders is identical with the total length that one is long and the other is short originally, and design makes when using not and can cause the error of locating appearance because of setup error up and down like this.

As shown in Figure 5, about the scale of useful paint labelling on the positioning framework,, use back paint can come off the service life of equipment that influences easy to wear repeatedly owing to will use iodine tincture and alcohol disinfecting before the operation.This case has designed the framework outside and has studded with and use safety glass, scribbles the paint of reference mark in the inboard of glass, like this, embrocates less than paint when operation is sterilized, and just can not damage scale mark.

This utility model is divided into two kinds of situations when concrete utilization:

One, only with the framework stereotactic apparatus is arranged

Patient's brain temporal lobe has occupying lesion to need operation, the stereotactic apparatus headstock of this case is installed under local anaesthesia before the operation, general capable CT of template or the nuclear magnetic resonance scanning of CT of this case and nuclear-magnetism on tape, image calculation pathological changes coordinate with the acquisition of scanning back, the patient-side clinostatism lies on the operation table, by calculating good coordinate the rear side that the arcuate guide framves are installed in the headstock is spent in 120 of this case, guide operation to position with probe.

Two, framework and frameless position finder and usefulness are arranged

Patient's brain temporal lobe has occupying lesion to need operation, noinvasive ground posts the index point that 6 CT or nuclear-magnetism all develop before the operation on patient's scalp, carry out CT or nuclear magnetic scanning then, the image copy of scanning is arrived in the computer of frameless stereotactic system, do the pre-operative surgical plan, the design operative approach.Patient lies on the operation table, apply general anaesthetic, patient-side clinostatism after the general anesthesia, the tridimensional orienting headstock of last this case, the tracker of frameless stereotactic system is installed on the headstock of this case, allow the corresponding coupling of each point on the frameless stereotactic system identification scalp with the development point of patient image in the computer, operating theater instruments with the system keeps track that can be positioned designs operative approach by surgical planning then, the 120 degree arcuate guide framves of this case are installed in the rear side of the headstock, with the instrument guide real-time location of operation that undergos surgery.

Claims

1. brain stereotactic device, comprise the head fixed apparatus (6) formed by framework (4) head locating rack (5), be nested with the guiding bow (1) on described head fixed apparatus extension axle and can bend mobile guide frame (3) along guiding, two guiding folders (9,10) are arranged on the described leading truck, there is scale mark (11) in the outside of described framework (4), it is characterized in that, described guiding bow is the circular arcs of 120 degree, an end be nested with on head fixed apparatus extension axle, the other end is vacant.

2. brain stereotactic device according to claim 1 is characterized in that, two guiding folders on the described leading truck adopt the platform uniform structure, can exchange up and down.

3. brain stereotactic device according to claim 1 is characterized in that, described scale mark (11) adopts the structure at transparent material reverse side reference mark.