EP3589440A1 - Verfahren zur herstellung eines medizinischen bauteils - Google Patents
Verfahren zur herstellung eines medizinischen bauteilsInfo
- Publication number
- EP3589440A1 EP3589440A1 EP18704534.9A EP18704534A EP3589440A1 EP 3589440 A1 EP3589440 A1 EP 3589440A1 EP 18704534 A EP18704534 A EP 18704534A EP 3589440 A1 EP3589440 A1 EP 3589440A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel
- component
- channels
- walls
- medical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000000654 additive Substances 0.000 claims abstract description 25
- 230000000996 additive effect Effects 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 41
- 239000002245 particle Substances 0.000 claims description 27
- 239000012530 fluid Substances 0.000 claims description 26
- 239000004566 building material Substances 0.000 claims description 25
- 238000009499 grossing Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 12
- 238000007711 solidification Methods 0.000 claims description 9
- 230000008023 solidification Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims 1
- 239000004035 construction material Substances 0.000 abstract 3
- 230000004927 fusion Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 238000000110 selective laser sintering Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002324 minimally invasive surgery Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000010952 cobalt-chrome Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/0011—Manufacturing of endoscope parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30968—Sintering
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
- A61F2240/002—Designing or making customized prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2207/00—Methods of manufacture, assembly or production
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2207/00—Methods of manufacture, assembly or production
- A61M2207/10—Device therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the invention relates to a method for producing a medical component comprising a comprehensive channel structure at least partially in a body of an object, in particular a living being, insertable, at least one, in particular tubular, channel through which a medium and / or at least one functional element can be guided ,
- a living, insertable medical components comprising a channel structure, which comprise at least one, in particular tubular, channel are basically known.
- Corresponding medical components are used, for example, in the field of minimally invasive surgery, in which medical media, i. H. z. B. rinsing liquids, or functional elements, such as. B. instruments for manipulation, d. H. z. B. for removal or removal of tissue and / or instruments for the examination of tissue through the one or more channels of a respective component-side channel structure are performed.
- an endoscope typically comprises a corresponding medical component, through the channel structure of which certain medical media or functional elements can be guided.
- Corresponding medical components are to date typically made of individual tube or tube segments, ie in particular by connecting individual tube or tube segments produced.
- the production of corresponding medical components is often complicated due to the small dimensions, in particular the channel structure.
- the effort increases with the degree of complexity of the geometric-constructive shape of the respective channel structure or medical components in general; For example, medical components with a multiple, possibly branched, mutually communicating channels having channel structure only with extremely great effort in a satisfactory quality produce.
- the invention is therefore based on the object of specifying a contrast improved method for producing corresponding medical components.
- the method described herein serves to produce an at least partially into an object, i. H.
- the component which typically has an elongate geometrically constructive shape, also comprises a channel structure, which can also be designated as a cavity structure, or at least one of which can also be designated as a cavity
- a respective channel typically extends between component-side openings located in the region of respective free ends of the component, a first component-side opening typically being within an object, a second component-side opening during operation of the component is typically external to the object during operation of the device.
- the channel structure may include multiple channels.
- the component can be used in the field of minimally invasive surgery, in which gaseous or liquid media, i. H. z. As rinsing fluids, or medical functional elements, such as. B. instruments for manipulation, d. H. z. B. for removal or removal, tissue and / or instruments for the examination of tissue through the channel or channels of the component-side channel structure are performed.
- the component z. B. form an endoscope or a component of an endoscope.
- the component is at least partially, in particular completely, via a powder-based additive manufacturing process, ie by successive layer-wise selective exposure and concomitant successive layer-by-layer selective solidification of building material layers from a building material solidifiable by means of an energy beam.
- the building material is typically in powder form, ie in the form of a powder.
- a powdered building material may, for.
- a metal or a metal alloy in particular a CoCr alloy
- an iron alloy preferably stainless steel
- a plastic in particular a photopolymer or a thermoplastic polymer can be used.
- the successive layerwise selective exposure or solidification of respective selectively to be consolidated building material layers is based on component-related Bau schemes.
- Corresponding Bau schemes describe the geometric-constructive shape of the component to be manufactured additive and may for example include "geslicte" CAD data of the component to be manufactured additive.
- the method can, for example, as a selective laser melting process (SLM process) or as a selective laser sintering process (SLS process ).
- an apparatus for the additive production of three-dimensional objects by successive layer-wise selective exposure and concomitant successive layer-by-layer solidification of building material layers from a pulverulent building material which can be hardened by means of an energy beam is used for the production of the component.
- the device may, for.
- SLM device i. H. as a device for performing selective laser melting (SLM) processes
- SLS device d. H. as a device for performing selective laser sintering method (SLS method) may be formed.
- any desired channel (cross-sectional) geometries or channel structure (cross-sectional) geometries can be produced, ie the geometrical-structural design freedom of the channels or channel structures of the components is virtually unlimited.
- you can formed by branching or branching channels, in particular (acute) angled, transitions between channels can be made simplified.
- Undercuts, gaps and joints can be improved;
- a reduction in the number of undercuts, columns and joints is possible.
- a significant reduction of the steps for the production of respective components is possible, which has a positive effect on the profitability of the production of respective components.
- the additive production of respective components also requires a number of structural advantages: for example, the components produced by addition are characterized by particular structural, in particular mechanical, and hygienic properties.
- the components are highly integrated in functional terms; Consequently, extremely functional components can be formed.
- a respective channel can be designed to extend at least in sections, possibly completely, in a straight line and / or at least in sections, possibly completely, in a curved manner.
- a respective channel can therefore be designed to extend at least in sections, if appropriate completely, in a straight line and / or at least in sections, possibly completely, curved.
- the component and thus also the channels typically have an elongated geometrical-constructive shape, so that a respective channel along its longitudinal extent differently extending channel sections, d. H. on the one hand rectilinear channel sections and on the other hand curved channel sections may have.
- a respective channel may, in particular in the region of a free end of the component, be formed with at least one branching point in which the channel branches off into at least two channels (secondary channels).
- a respective channel can accordingly, in particular in the region of a free end of the component, with at least one branching point, in which the channel in at least two channels branches, be formed.
- corresponding second branches resulting from a branching of a first channel can also be formed with corresponding branching points, in which they each branch off into at least two further channels.
- the component can accordingly comprise a different number of channels along its longitudinal extent; the number of channels before and after a corresponding branching point can thus vary in at least two channels due to corresponding branches of at least one channel.
- a corresponding branching of a channel can, for. B. expedient for a particular output or distribution of a flowing through the channel structure medium from the component, ie, in general, be useful for the functionality of the component.
- a respective channel can, in particular in a region lying between two free ends of the component, be formed with at least one branching point in which a channel branches into at least one further channel (side channel).
- a respective channel can accordingly, in particular in a region lying between two free end of the component, be formed with at least one branching point in which a channel branches into at least one further channel.
- corresponding second branches resulting from a branching of a first channel can also be formed with corresponding branching points, in which these branch in each case into at least one further channel.
- the component may comprise a different number of channels along its longitudinal extent; the number of channels before and after a corresponding branch point may thus vary due to branching of a channel into at least two channels.
- a corresponding branch of a channel can z.
- a medical functional element ie, for example, a medical instrument
- a first channel and the simultaneous supply of a medium via a branched second channel
- a respective channel or a channel section forming part of a respective channel has a section lying in a range between 0.25 and 3 mm, in particular in a range between 0.5 and 2.5 mm Inner diameter of the channel can be formed (exceptions up and down are conceivable).
- a respective channel has different inner diameters along the length of the channel.
- the wall thickness of the walls delimiting a respective channel can also be in a range between 0.25 and 3 mm, in particular in a range between 0.5 and 2.5 mm (exceptions up and down are conceivable).
- the walls defining a respective channel have different wall thicknesses along the longitudinal extent of the channel.
- the component-side channel structure may comprise a plurality of channels.
- the channel structure can in this case be formed with a plurality of channels communicating with one another, in particular in corresponding branching or branching points, or with a plurality of channels not communicating with one another.
- the channel structure may therefore be formed with a plurality of channels communicating with one another, in particular in corresponding branching or branching points, or with a plurality of channels not communicating with one another.
- the channels can z. B. be coaxially arranged or be. Consequently, viewed in cross-section, the channel structure may comprise a plurality of coaxial, ie, one another, channels.
- a first outer diameter first or inner channel may extend within a second outer channel having a larger second outer diameter.
- a medical functional element ie, for example, a medical instrument
- a Medium are passed through an outer channel surrounding the inner channel, or vice versa.
- different media to guide different media, possibly with different flow parameters, or different functional elements.
- a first channel as a feed channel for supplying a medium and a second channel as a discharge channel for discharging a medium.
- a plurality of channels can also be formed circumferentially spaced around a central axis of the component or be arranged adjacent thereto. It is also possible in this way to implement different functionalities of the channel structure over the entire cross section of the component; For example, a medical functional element, i. H. z. As a medical instrument, are guided by a first channel, and a medium through a first channel circumferentially adjacent second channel are guided. Of course, it is also conceivable to use different media to guide different media, possibly with different flow parameters, or different functional elements.
- At least one measure for at least section-wise mechanical processing of the walls delimiting a respective channel of the component or its surface can be carried out.
- the structural properties, in particular of the surfaces, of the walls bounding the respective channel can be influenced in a targeted manner in order, for example, by forming a specific surface structuring or a certain surface roughness, e.g. B. influence the flow behavior of a flowing through the respective channel medium.
- a fluid flow which contains material from the at least one channel limiting walls materialabtragende, in particular abrasive particles are flowed through a respective channel.
- a fluid flow containing material-removing particles By flowing through the channel with a fluid flow containing material-removing particles, the wall thickness of the walls can be reduced to a desired level or the channel cross-section can be increased to a desired level.
- a material-removing particles As a material-removing particles z.
- hard mineral particles (mixtures) ie in particular corundum particles (mixtures) can be used.
- the fluid flow may be a gas or liquid flow, ie, for example, an air or water flow, which flows through the respective channel with a sufficiently high flow velocity for material removal from the walls by means of the particles.
- a fluid flow which contains the surface of the walls bounding the at least one channel can be flowed through a respective channel.
- a fluid flow containing smoothing particles By flowing through the channel with a fluid flow containing smoothing particles, the surface of the walls can be formed with a desired roughness.
- a smoothing particles z. Hard glass or silica particles (blends), d. H. in particular glass bead particles (mixtures) can be used.
- the fluid flow may in turn be a gas or liquid flow which flows through the respective channel with a flow velocity which is sufficiently high for smoothing the surface by means of the particles.
- the surface of the at least one channel limiting walls z. B. have a surface roughness Ra below 0.9, in particular below 0.8.
- the fluid flow is typically from channel sections or channels having a comparatively larger cross-sectional area in the direction of channel sections or channels with a comparatively smaller one Cross-sectional area is directed, and that the inlet angle of the respective fluid flow is dependent on the course of the respective channel, in a range typically between 0 and 90 ° relative to the central axis of the respective channel. In this way, particularly positive removal or smoothing results can be achieved.
- the component may be formed with a supply portion having a supply port for supplying the respective particles containing fluid flow into the respective channel.
- the supply in particular of the particles, can thus take place via a feeding section specially designed for this purpose.
- the delivery section may form an inherent part of the component. After the at least one measure has been carried out, the feed section can be removed for at least section-wise mechanical processing of the walls of the component delimiting the at least channel.
- At least one handling element on the component, in particular in the region of a free end of the component, at least one handling element, in particular a grip element for a user, or a tool element, in particular a gripper element z. B. for gripping tissue of an object to be arranged or formed or be.
- the handling element can be fastened to the component as a separate component group (without damage or destruction) in a detachable or non-detachable manner.
- the handling element produce additive, d. H. especially as part of the additive production of the component as an integral part of the component mitauszusenten.
- the component can be or are formed with at least one expansion and / or compression structure enabling a section-wise stretching or compression of the component in the longitudinal direction of the component. Consequently, the component can be selectively expanded or compressed sections, which z. B. its handling, especially within an object improved.
- Corresponding expansion and / or compression structures can, for. B. have a bellows-like or -shaped geometric-constructive shape, which in the context of additive production of the component readily train.
- the component can be or are formed with at least one permeation structure permitting a section-wise permeation of a medium from a channel into the environment around the component.
- the component can be used to selectively dispense a medium, i. H. z.
- a medium i. H. z.
- z. B. can be formed by permeable by a medium "permeation regions or openings.
- the invention further relates to a component which comprises a channel structure comprising at least one channel, in particular a tubular channel, through which a medium and / or at least one medical functional element, in particular a tool element, can be guided.
- the component is characterized in that it is manufactured according to a method as described. Consequently, all designs in connection with the method apply analogously to the component.
- the invention relates to an apparatus for the additive production of three-dimensional objects by successive layer-wise selective exposure and concomitant successive layerwise selective solidification of building material layers of a powdery building material solidifiable by means of an energy beam.
- the device is characterized in that it is set up to carry out the method as described, thus for the additive production of a corresponding component. Consequently, all designs in connection with the method also apply analogously to the device.
- the device may, for. B. as SLM device, ie as a device for performing selective laser melting (SLM) method, or as SLS device, ie as a device for performing selective laser sintering (SLS) method, be formed.
- SLM selective laser melting
- SLS selective laser sintering
- the device comprises the functional components typically required for carrying out additive construction processes. These include, in particular, a coating device which is configured to form building material layers to be selectively solidified (in the construction plane of the device), and an exposure device which is set up for selectively exposing building material layers (in the construction plane of the device) to be selectively strengthened.
- the coating device typically comprises a plurality of components, ie, for example, a coating element comprising a coating tool, in particular a blade, and a guide device for guiding the coating element along a defined path of movement.
- the exposure device also typically comprises a plurality of components, ie, for example, a beam generating device for generating an energy or laser beam, a beam deflecting device (scanner device) for deflecting an energy or laser beam generated by the beam generating device onto an area of a building material layer to be selectively solidified various optical elements, such.
- a beam generating device for generating an energy or laser beam
- a beam deflecting device scanner device
- deflecting device for deflecting an energy or laser beam generated by the beam generating device onto an area of a building material layer to be selectively solidified various optical elements, such.
- Fig. 1 is a schematic diagram of a device according to a
- FIGS. 2 to 9 are each a schematic diagram of a medical component according to an exemplary embodiment.
- Fig. 1 shows a schematic diagram of a device 1 according to an embodiment.
- the device 1 is used for the additive production of three-dimensional objects 2, ie in particular technical components or technical component groups, by successive layerwise selective exposure and associated successive layered selective solidification of building material layers of a solidifiable powdery Building material 3 by means of an energy or laser beam 4.
- the device 1 may be formed as a laser CUSING® device, ie as a device for carrying out selective laser melting.
- the device 1 comprises the functional components required for carrying out additive construction processes; For example, in Fig. 1, a coating means 5 and an exposure means 6 are shown.
- the coating means 5 is designed to form building material layers to be selectively exposed or selectively solidified in a building plane of the apparatus 1.
- the coating device 5 comprises a coater element assembly (not shown) comprising a plurality of coater elements (not shown), which is mounted so as to be movable in a horizontal direction via a guide device (not shown), as indicated by the double arrow P1.
- the exposure device 6 is set up for the selective exposure of building material layers to be solidified in the construction plane of the device 1 and comprises for this purpose a beam generating device (not shown) which is set up to generate a laser beam 4, optionally a beam deflection device (not shown) which deflects one of the beam generating means laser beam 4 is set up to be exposed area of a selectively to be solidified building material layer, and various optical elements such.
- a beam generating device (not shown) which is set up to generate a laser beam 4
- a beam deflection device (not shown) which deflects one of the beam generating means laser beam 4 is set up to be exposed area of a selectively to be solidified building material layer, and various optical elements such.
- FIG. 1 also shows a dosing module 7, a building module 8 and an overflow module 9, which are docked to a lower area of an intertisable process chamber 10 of the device 1.
- the mentioned modules 7 - 9 can also form a lower region of the process chamber 10.
- the device 1 shown in FIG. 1 can be used to implement a method for the additive production of a medical component 11 that can be inserted at least in sections into an object, ie in particular a human or animal being.
- a respective component 1 1 is successively layer by layer selective exposure and associated layer-wise selective solidification of building material layers from a building material 3 solidifiable by means of an energy or laser beam 4.
- a building material 3 z As a building material 3 z.
- a metal or a metal alloy in particular a CoCr alloy, an iron alloy, preferably stainless steel, or a plastic, in particular a photopolymer or a thermoplastic polymer can be used.
- the successive layerwise selective exposure or solidification of respective selectively to be consolidated building material layers is based on component-related Bau schemes. Corresponding Bauberries describe the geometrical-constructive shape of the additive to be produced component 1 1 and can, for example, "geslicte" CAD data of the additive to be produced part 1 1 include.
- a respective component 1 1 can be used in the field of minimally invasive surgery, in which gaseous or liquid media, d. H. z. As rinsing fluids, or medical functional elements, such as. B. instruments for manipulation, d. H. z. B. for removal or removal of tissue and / or instruments for the examination of tissue through the one or more channels 13 of the component-side channel structure 12 are performed.
- a respective component 1 1 z. B. form an endoscope or a component of an endoscope.
- FIGS. 2-9 Embodiments of corresponding components 1 1 are shown in Figs. 2-9. With reference to FIGS. 2-9 it can be seen that the components 1 1 each have an elongated geometric-constructive shape.
- a respective component 1 1 comprises a channel structure 12, which comprises at least one channel 13.
- a respective channel 13 typically extends between, in particular in the region of respective free ends of a respective component 1 1 arranged or formed, component-side openings 14, 15th
- a respective channel 13 may be designed to be rectilinear or curved can.
- a channel 13 in the region of a free end of the component 1 1 with a branching point 16, in which the channel 13 in at least two, here three, channels 13 (secondary channels) branches, may be formed.
- the component 1 1 accordingly comprises along its longitudinal extent a different number of channels 13; the number of channels 13 before and after a corresponding branching point 16 is thus conditioned by corresponding branches of the channel 13 in at least two channels 13 vary.
- a perspective view (see Fig. 5) and two partially longitudinally sectioned views (see Fig. 6, 7) of a component 1 1 are shown, it can be seen that a Channel 13 in a lying between two free end of the component 1 1 area with a Y-like or -shaped branching point 17, in which a channel 13 branches into a further channel 13 (side channel) may be formed. Also, the component includes 1 1 along its longitudinal extent a different number of channels 13; the number of channels 13 before and after a corresponding branching point 17 is thus due to the branching of the channel 13 in at least two channels 13 vary.
- a component-side channel structure 12 can comprise a plurality of channels 13.
- the channel structure 12 may be interconnected with a plurality of, in particular corresponding branching or branching points 16, 17, communicating channels 13 are formed.
- a channel structure 12 may also be formed with a plurality of non-communicating channels 13.
- the channels 13 are formed coaxially arranged.
- the channel structure 12 comprises a plurality of coaxial, d. H.
- a first outer diameter exhibiting first or inner channel 13 extends within a second outer diameter having a larger second outer diameter 13.
- a medical functional element i. H. z.
- As a medical instrument are guided through the inner channel 13, and a medium are passed through an inner channel 13 surrounding the outer channel 13, or vice versa.
- a first channel 13 as a feed channel for supplying a medium and a second channel 13 as a discharge channel for discharging a medium.
- a plurality of channels 13 are arranged circumferentially around a central axis A of the component 11 or adjacent thereto. It is also possible in this way to implement different functionalities of the channel structure 12 over the overall cross section of the component 1 1;
- a medical functional element ie, for example, a medical instrument
- a medium can be guided through a second channel 13 arranged circumferentially adjacent to the first channel 13.
- a medical functional element ie, for example, a medical instrument
- a medium can be guided through a second channel 13 arranged circumferentially adjacent to the first channel 13.
- the structural properties, in particular of the surfaces, of the walls bounding the respective 13 channel can be influenced in a targeted manner in order, for example by forming a specific surface structure or a certain surface roughness, eg. B. influence the flow behavior of a flowing through the respective channel medium.
- a fluid flow which contains particles which remove material from the walls delimiting the at least one channel 13 can be flowed through a respective channel 13.
- a fluid flow containing material-removing particles By flowing through the channel 13 with a fluid flow containing material-removing particles, the wall thickness of the walls can be reduced to a desired level or the channel cross-section can be increased to a desired level.
- a material-removing particles As a material-removing particles z. As hard mineral particles (mixtures), d. H. in particular corundum particles (mixtures) can be used.
- the fluid flow is a gas or liquid flow which flows through the respective channel 13 with a sufficiently high flow rate for material removal from the walls by means of the particles.
- a fluid flow which surrounds the surface of the at least one channel 13 can be provided Contains boundary walls smoothing particles are flowed through a respective channel 13.
- the surface of the walls can be formed with a desired roughness.
- a smoothing particles z As hard glass or silica particles (mixtures), ie in particular glass bead particles (mixtures) can be used.
- the fluid flow is again a gas or liquid flow which flows through the respective channel 13 with a flow velocity which is sufficiently high for smoothing the surface by means of the particles.
- the surface of the respective channel 13 bounding walls z. B. have a surface roughness Ra below 0.9, in particular below 0.8.
- a respective fluid flow is typically directed from channel sections or channels 13 with a comparatively larger cross-sectional area in the direction of channel sections or channels 13 with a comparatively smaller cross-sectional area.
- the entry angle of the respective fluid flow is dependent on the course of the respective channel 13, in a range typically between 0 and 90 ° relative to the central axis A of the respective channel 13. In this way, particularly positive removal or smoothing results can be achieved.
- the component 11 may be formed with a supply section (not shown) having a feed opening for supplying the respective particles containing fluid flow into the respective channel 13.
- the supply in particular of the particles, can thus take place via a feeding section specially designed for this purpose.
- the feed section can form an inherent part of the component 11, however, after the at least one measure has been carried out, at least sections of mechanical processing of the walls bounding the at least channel 13 can be removed.
- the delivery axis of the fluid flow may be at a supply (irradiation) of the corresponding particle-containing fluid flow with respect to the tangent to the central axis A in Direction of an inner radius of the first change of direction or bend in the course of the channel 13 run.
- At least one handling element (not shown), in particular a handle element for a user, or a tool element, in particular a gripper element z. B. for gripping tissue of an object, can be arranged or formed or can be.
- the handling element or the tool element can be fastened as a separate (s) component group (damage or destruction-free) detachably or non-detachably on the component 1 1.
- the handling element or the tool element to produce additive, d. H. in particular in the context of the additive production of the component 1 1 as an inherent part of the component 1 1 mitauszusenten.
- the component 1 1 with a stretching or compression of a portion of the component 1 1 in the longitudinal direction of the component 1 1 enabling expansion and / or compression structure may be formed. Consequently, the component 1 1 sections selectively expanded or compressed, which z. B. its handling, especially within an object improved.
- Corresponding expansion and / or compression structures can, for. B. have a bellows-like or -shaped geometrical-constructive shape, which can be readily formed in the context of additive production of the component 1 1.
- the component 11 may be formed with at least one permeation structure (not shown) permitting a medium to be partially permeated from a channel 13 into the environment around the component 11. Consequently, the component 1 1 to a targeted delivery of a medium, ie, for example, a medically acting substance, via a corresponding permeation structure, which z. B. can be formed by permeable by a medium "permeation regions or openings.
- a respective channel 13 or a channel section forming part of a respective channel 13 has an inner diameter lying in a range between 0.25 and 3 mm, in particular in a range between 0.5 and 2.5 mm of the channel can be formed.
- the wall thickness of the walls defining a respective channel 13 can likewise be in a range between 0.25 and 3 mm, in particular in a range between 0.5 and 2.5 mm.
- the walls defining a respective channel 13 have different inner diameters or different wall thicknesses along the longitudinal extent of the channel 13.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102017104188.5A DE102017104188A1 (de) | 2017-02-28 | 2017-02-28 | Verfahren zur Herstellung eines medizinischen Bauteils |
PCT/EP2018/053256 WO2018158062A1 (de) | 2017-02-28 | 2018-02-09 | Verfahren zur herstellung eines medizinischen bauteils |
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EP3589440A1 true EP3589440A1 (de) | 2020-01-08 |
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EP18704534.9A Pending EP3589440A1 (de) | 2017-02-28 | 2018-02-09 | Verfahren zur herstellung eines medizinischen bauteils |
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US (1) | US12102294B2 (de) |
EP (1) | EP3589440A1 (de) |
CN (1) | CN110382142A (de) |
DE (1) | DE102017104188A1 (de) |
WO (1) | WO2018158062A1 (de) |
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DE102017104188A1 (de) | 2017-02-28 | 2018-08-30 | Cl Schutzrechtsverwaltungs Gmbh | Verfahren zur Herstellung eines medizinischen Bauteils |
DE102019116583A1 (de) * | 2019-06-19 | 2020-12-24 | Karl Storz Se & Co. Kg | Instrumentenschaft mit mehreren Kanälen sowie dessen Fertigung |
DE102020105469A1 (de) * | 2020-03-02 | 2021-09-02 | Karl Storz Se & Co. Kg | Endoskop mit einer Lichtleitereinrichtung, Verfahren zur Herstellung eines Endoskops mit einer Lichtleitereinrichtung und Verwendung eines Verfahrens zur Herstellung eines Endoskops |
DE102023104782A1 (de) | 2023-02-27 | 2024-08-29 | Karl Storz Se & Co. Kg | Operationslaryngoskop-Spatel und dessen Herstellung |
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US20170027606A1 (en) * | 2015-07-31 | 2017-02-02 | Purdue Research Foundation | Systems and methods for performing a surgical procedure |
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US7332330B2 (en) | 2001-09-11 | 2008-02-19 | Renamed Biologics, Inc. | Device for maintaining vascularization near an implant |
US8323249B2 (en) | 2009-08-14 | 2012-12-04 | The Regents Of The University Of Michigan | Integrated vascular delivery system |
AT509292B1 (de) | 2009-09-01 | 2012-01-15 | Univ Wien Med | Trepanbohrer |
US9180029B2 (en) * | 2011-12-14 | 2015-11-10 | The Regents Of The University Of Michigan | Porous bidirectional bellowed tracheal reconstruction device |
DE102012000466B3 (de) | 2012-01-13 | 2013-04-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung von Bauteilen mit filigranen Strukturen und dessen Verwendung |
WO2013137283A1 (ja) | 2012-03-16 | 2013-09-19 | パナソニック株式会社 | 三次元形状造形物の製造方法および三次元形状造形物 |
DE102013203936A1 (de) * | 2013-03-07 | 2014-09-11 | Airbus Operations Gmbh | Generatives Schichtaufbauverfahren zur Herstellung eines dreidimensionalen Objekts und dreidimensionales Objekt |
WO2015013716A1 (en) * | 2013-07-26 | 2015-01-29 | The Regents Of The University Of California | Patient-specific temporary implants for accurately guiding local means of tumor control along patient-specific internal channels to treat cancers |
WO2015066536A1 (en) * | 2013-10-31 | 2015-05-07 | Graham Howard P | Flexible structures |
US10537226B2 (en) * | 2013-12-23 | 2020-01-21 | California Institute Of Technology | Rotational scanning endoscope |
DE102014203458A1 (de) | 2014-02-26 | 2015-09-10 | Gebr. Brasseler Gmbh & Co. Kg | Verfahren zur Herstellung eines medizinischen Instruments mittels eines additiven Verfahrens |
GB201420829D0 (en) | 2014-11-24 | 2015-01-07 | Imp Innovations Ltd | Lymph node replacement construct |
US20160166284A1 (en) * | 2014-12-16 | 2016-06-16 | Oxford Performance Materials, Inc. | Methods and Systems For Local Administration of Therapeutics |
DE102015204486B4 (de) * | 2015-03-12 | 2022-08-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Chirurgisches Instrument |
CN105881185B (zh) | 2016-04-08 | 2018-04-17 | 广东工业大学 | 一种自增压高速磨粒磁流孔内表面抛光方法及装置 |
DE102016119707A1 (de) * | 2016-10-17 | 2018-04-19 | Olympus Winter & Ibe Gmbh | Adapter zum Anschluss eines Endoskops, System, Verfahren zur Herstellung eines Adapters und Verwendung |
CN106392893A (zh) * | 2016-11-04 | 2017-02-15 | 华侨大学 | 一种金属3d打印零件弯管内表面的研磨抛光系统及方法 |
DE102017104188A1 (de) | 2017-02-28 | 2018-08-30 | Cl Schutzrechtsverwaltungs Gmbh | Verfahren zur Herstellung eines medizinischen Bauteils |
WO2018165435A1 (en) * | 2017-03-08 | 2018-09-13 | The Regents Of The University Of California | Esophageal deflection device |
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2017
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2018
- 2018-02-09 EP EP18704534.9A patent/EP3589440A1/de active Pending
- 2018-02-09 US US16/489,206 patent/US12102294B2/en active Active
- 2018-02-09 WO PCT/EP2018/053256 patent/WO2018158062A1/de unknown
- 2018-02-09 CN CN201880014132.6A patent/CN110382142A/zh active Pending
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US20170027606A1 (en) * | 2015-07-31 | 2017-02-02 | Purdue Research Foundation | Systems and methods for performing a surgical procedure |
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US20200113698A1 (en) | 2020-04-16 |
DE102017104188A1 (de) | 2018-08-30 |
CN110382142A (zh) | 2019-10-25 |
US12102294B2 (en) | 2024-10-01 |
WO2018158062A1 (de) | 2018-09-07 |
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