CN205251685U - Cerebral hemorrhage minimal access surgery is with guide support - Google Patents

Abstract

The utility model discloses a cerebral hemorrhage minimal access surgery is with guide support, including the non - closed loop guide channel of base with terminal directional target hematoma, the base combine the facial profile of patient's cranium closely, the base includes with the position of the facial close laminating of patient's cranium: one or more in volume, glabella, eye socket, nose, external auditory canal, outer canthus or the mastoid process is at first to bleeding the scanning of patient's head in order to acquire head image file data, the close three -dimensional model who laminates patient's cranium face regional profile motionless is relatively built to the target hematoma of selecting separately the facial profile of cranium afterwards and need clear away, the hollow non - closed loop of design puncture guide channel support model on the model, adjustment back output file is printed through 3D and is obtained this patient's cerebral hemorrhage minimal access surgery with accurate guide support, the utility model has the advantages of customization of individual characterization, location accuracyization, avoid infecting, little, the simple process, with low costs of wound.

Description

A kind of cerebral hemorrhage minimum traumatic operation guide support

Technical field

The utility model relates to prepares cerebral hemorrhage operation apparatus, particularly a kind of cerebral hemorrhage minimum traumatic operation guide support of printing based on 3D.

Background technology

Cerebral hemorrhage has the higher fatal rate of disabling. The healing of cerebral hemorrhage and bleeding part, amount of bleeding and rescue time are closely related, cerebral hemorrhage position often occurs in the important core group of encephalic distributed areas, and the four limbs bone tissue of these regions and periphery, craniofacial region musculature and digestive viscera are organized completely different, they not only have important nerve fibre bundle to pass, there is the close net blood vessel group of domination functional areas to pass by simultaneously, operating difficulty is very big, to operation precisely require high.

Along with the development of microinvasion technology, cone cranium hematoma puncture is applied more and more on cerebral hemorrhage treatment in conjunction with urokinase drainage, this therapy has the advantages such as simple and easy to do, safe, reliable, economic, practical, effective, but the error of preoperative CT location, operator's experience difference in art, individual patient difference all can cause that deviation appears in puncture distance, direction etc., causes puncture failure, based on this, how more accurately location implementation operation is very important. The aided positioning systems such as at present CT location in art, computer assisted navigation, operating robot be auxiliary are clinically more common location of operation systems, wherein in art CT to be positioned at most hospitals more universal, equipment price is cheap, but malfunction in art, and have x radiation x; Although computer assisted navigation registration, can provide real-time image support in art, expensive, needs mounting and positioning device; Operating robot is up-to-date Intraoperative position means, and it has overcome hand tremor registration, but price is extremely expensive, more difficult universal.

Craniofacial region is that the mankind change one of maximum organic region, the model that any " standard " changed is all difficult to perfect laminating, simultaneously due to facial expression myokinesis usually cause craniofacial region appearance because of asynchronism(-nization) inconsistent, these features and bone tissue are completely different, cause constructing the very trouble of personalized model customization that is applicable to patient's craniofacial region feature, and 3D printing technique is one of current the most popular forming materials research direction, it is assisting by image technology data, appliance computer aided design techniques fictionalizes the three-dimensional structure for the treatment of construct, then utilize corresponding material, a kind of organizational project that successively creates out entity learns a skill. thereby by obtaining patient's imaging data, by selecting relative " fixed point " of patient's craniofacial region projection, if the positions such as volume, glabella, eye socket, nose, external auditory meatus, outer canthus or mastoid process are as target area, by making and can precisely guide cerebral hemorrhage minimum traumatic rack for operation navigation system in conjunction with 3D printing technique, there is high accuracy, structure speed is fast, can realize the advantages such as manufacture as required because of advantages such as personalization, precision, long-ranges, be particularly suitable for the application of medical domain.

Utility model content

The utility model is high or poor accuracy problem for prior art deficiency, expense, has proposed a kind of cerebral hemorrhage minimum traumatic operation guide support.

The technical scheme that the utility model is complete comprises:

A kind of cerebral hemorrhage minimum traumatic operation guide support, comprises that base and end point to the non-closed loop guiding puncture passage of target hemotoncus, it is characterized in that, described base is closely in conjunction with patient's craniofacial region profile.

Described base and patient's craniofacial region closely position of laminating comprise: one or more in volume, glabella, eye socket, nose, external auditory meatus, outer canthus or mastoid process.

The about 2-3mm of described base thickness, area is 20cm2～60cm2.

The about 3-4cm of described non-closed loop guiding puncture passage length, diameter is 6mm.

Described non-closed loop guiding puncture passage is avoided sinus frontalis, gas room, encephalic common blood vessel traveling position and functional areas, and points to target hemotoncus center.

Described timbering material is PLA or acrylonitrile-butadiene-styrene copolymer.

Described support adopts 3D Method of printing to obtain.

The preparation method of guide support for above-described cerebral hemorrhage minimum traumatic operation, is characterized in that, comprises the steps:

Step 1, utilize image documentation equipment to patients with cerebral hemorrhage head through row thin layer scanning, obtain patient's head image file data;

Step 2, by 3D reverse engineering software, obtained data are processed, sub-elected patient's craniofacial region profile and need the target hemotoncus of removing;

Step 3, utilize 3D design software to build the closely threedimensional model of the relatively motionless region contour of laminating patient's craniofacial region, on model, design hollow non-closed loop guiding puncture channel bracket model;

Step 4, adjust this puncture channel direction, avoid sinus frontalis, gas room, encephalic common blood vessel traveling position and functional areas, passage points to target hemotoncus center,

Step 5, adjustment cover base size and the non-closed loop puncture channel length of craniofacial region model, output file closely.

Step 6, the file of output is imported to 3D printer, obtain the accurate guide support of this patient's cerebral hemorrhage minimum traumatic operation.

Described image documentation equipment is CT or MRI, and described patient's head image file data format is DICOM.

The reverse engineering software of 3D described in step 2 is mimics software, and step 3 is 3-matic software to the design software of 3D described in step 5, and described file is STL form.

In described step 6, the raw material of printing as 3D with PLA or acrylonitrile-butadiene-styrene copolymer.

The utility model is with respect to the advantage of prior art:

1. accurate: to be that the three-dimensional data of rebuilding according to patient's head scanning completely designs with the accurate guide support of personalized cerebral hemorrhage operation that method of the present utility model builds, the perfect laminating of the base of support and patient's craniofacial region, shrink the change of the profile bringing for overcoming patient's craniofacial region mimetic muscle, our relative fixed point by manually selecting craniofacial region is as fit area, and builds base with this region; And the guiding device end direction of one points to target hemotoncus center, enter with this passage puncture tube the hemotoncus of going directly.

2. safety: by the puncture channel of this support, drainage tube enters the hemotoncus of going directly, avoid inserting sinus frontalis, gas room, encephalic common blood vessel traveling position and functional areas, at utmost reduce the injury of puncture, simultaneously this support is the brain support of fitting outward, can not enter encephalic, can effectively avoid intracranial infection and material contamination.

3. efficient: the through hemotoncus of personalized cerebral hemorrhage operation guide support section building by method of the present utility model, needn't locate hemotoncus by methods such as traditional triangulation body surface location, thereby reach shortening operating time, alleviate in operation in patients painful; Meanwhile, adopt guide support of the present utility model, operative incision only needs 6mm left and right size, is conducive to patient's prognosis.

4. simple to operate: the utility model research method is removed loaded down with trivial details computing formula, by stereo-picture straightforward manipulation, need not convert, be convenient to left-hand seat.

5. low cost: the region that the method for the utility model research is printed is the local laminating relative fixed point of craniofacial region region, by printing objects size reduction at 20cm2 in 60cm2, the about 2-3mm of thickness, the about 3-4cm of non-closed loop puncture channel length, diameter is 6mm, shorten the time-write interval, save printed material consumption.

Brief description of the drawings

Fig. 1 is the front elevation of cerebral hemorrhage minimum traumatic operation guide support of the present utility model;

Fig. 2 is the side view of cerebral hemorrhage minimum traumatic operation guide support of the present utility model.

In figure: 1, non-closed loop guiding puncture passage; 2, with base facial, nose laminating.

Detailed description of the invention

Below in conjunction with detailed description of the invention, the utility model is described further.

Embodiment 1 utilizes 3D printing technique to prepare the accurate guide support of personalized cerebral hemorrhage operation, specific as follows:

1) utilize CT to patients with cerebral hemorrhage head through row thin layer scanning, obtain the DICOM formatted data file that this patient comprises three-dimensional information data.

2) the Dicom format-pattern data of acquisition are stored in to CD or DVD CD, import to Mimics17.0 medical operation design software (Materialise company, Belgium) in, import data procedures and select harmless form, at working interface, operation area surface portion (geisoma, glabella, nose, nasolabial groove, outer canthus, on socket of the eye) and hemotoncus are carried out to 3-D view modeling.

3) by the 3-D view model copy creating in 3-Matic9.0 (Materialise company, Belgium) software, carry out craniofacial region and hemotoncus structural analysis, the design of design entry point and hollow non-closed loop guiding puncture passage.

4) in 3-Matic software, adjust this hollow non-closed loop guiding puncture channel direction, should avoid sinus frontalis, gas room, encephalic common blood vessel traveling position and functional areas, passage points to target hemotoncus center, and measures the virtual puncture path length that arrives hemotoncus center.

5) utilize the function adjustment of wiping out of 3-Matic software closely to cover craniofacial region model base size and hollow non-closed loop guiding puncture passage length, be output as STL form.

6) STL formatted file is imported to printer Slice Software, taking PLA as raw material, obtain the accurate guide support of this patient's cerebral hemorrhage minimum traumatic operation.

When operation, guide support of the present utility model is inserted in aseptic plastic film, patient gets dorsal position, after conventional aseptic sterilization, get the forehead point of puncture of support location and cut the otch that is about 6mm, electric drill becomes a 5mm hole in skull, make base 2 perfections fit in patient's craniofacial region this guide support, assistant's fixed support, operator holds hematoma drainage tube and penetrates along hollow non-closed loop guiding puncture passage 1 center, and the degree of depth is by measuring gained in step 4, target approach hemotoncus, extract puncture tube core, fixing puncture tube connects drainage system, performs the operation complete.

The related many-side of the utility model has been done as above and has been set forth. But, it should be understood that before not departing from the utility model spirit and put, those skilled in the art are equal to and change and modify it, described change and modify the coverage that falls into equally claim described in the application.

Claims (7)

1. a cerebral hemorrhage minimum traumatic operation guide support, comprises that the non-closed loop guiding puncture of base and end sensing target hemotoncus is logicalRoad, is characterized in that, described base is closely in conjunction with patient's craniofacial region profile.

2. support claimed in claim 1, is characterized in that, described base and patient's craniofacial region closely position of laminating comprise:One or more in volume, glabella, eye socket, nose, external auditory meatus, outer canthus or mastoid process.

3. the support described in claim 1 or 2, is characterized in that, the about 2-3mm of described base thickness, and area is20cm²～60cm²。

4. the support described in claim 1 or 2, is characterized in that, the about 3-4cm of described non-closed loop guiding puncture passage length,Diameter is 6mm.

5. support claimed in claim 1, is characterized in that, described non-closed loop guiding puncture passage is avoided sinus frontalis, gas room, craniumInterior common blood vessel traveling position and functional areas, and point to target hemotoncus center.

6. support claimed in claim 1, is characterized in that, described timbering material is PLA or acrylonitrile-butadiene-benzeneEthylene copolymer.

7. support claimed in claim 1, is characterized in that, described support adopts 3D Method of printing to obtain.