US20100168871A1 - Artificial dura biomedical device and brain surgery method utilizing the same - Google Patents
Artificial dura biomedical device and brain surgery method utilizing the same Download PDFInfo
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- US20100168871A1 US20100168871A1 US12/650,398 US65039809A US2010168871A1 US 20100168871 A1 US20100168871 A1 US 20100168871A1 US 65039809 A US65039809 A US 65039809A US 2010168871 A1 US2010168871 A1 US 2010168871A1
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- artificial dura
- skull
- biomedical device
- dura
- partial skull
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- 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
- A61F2/28—Bones
- A61F2/2875—Skull or cranium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/688—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for reattaching pieces of the skull
-
- 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
- A61F2/28—Bones
- A61F2/2846—Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
-
- 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
- A61F2/28—Bones
- A61F2/2846—Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects
- A61F2002/285—Fixation appliances for attaching bone substitute support means to underlying bone
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30448—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
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- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30462—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements retained or tied with a rope, string, thread, wire or cable
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0041—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting screws
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0075—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
- A61L27/3641—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix characterised by the site of application in the body
- A61L27/3675—Nerve tissue, e.g. brain, spinal cord, nerves, dura mater
Definitions
- the present invention relates to an artificial dura biomedical device and a brain surgery method utilizing the same.
- the dura substitutes may be made of natural and synthetic materials, for example autografts, allografts, xenografts, absorbable or unabsorbable polymers.
- the dura substitutes help to prevent infection, bad tissue response, leakage of cerebrospinal fluid, and cerebral tissue adhesion. Further, the dura substitutes promote tissue regeneration of dura mater.
- the dura repairing method comprises suture and non-suture methods.
- the suture methods are applied to the dura made of autografts, allografts, xenografts, and unabsorbable polymers (for example Neuro-Patch).
- Clinically, common problems include a long surgery procedure and an inconvenient operation so that surgery risk increases.
- non-suture dura for example DuraGen (Integra)
- DuraGen Integra
- non-suture dura is usually used.
- DuraGen made of collagen.
- Surgery method steps utilizing DuraGen only comprise cutting the DuraGen to be bigger than the broken dura and covering the cut DuraGen on the broken dura.
- non-suture dura has bad fixity so that the dura easily moves and cerebrospinal fluid leaks.
- the invention provides an artificial dura biomedical device.
- the artificial dura biomedical device is combined with a partial skull cut from a whole skull.
- the artificial dura biomedical device comprises an artificial dura and a connecting element.
- the connecting element fixes the partial skull with the artificial dura.
- the partial skull comprises a side surface
- the artificial dura covers the partial skull and the connecting element fixes the artificial dura on the side surface.
- the connecting element comprises a binder, a screw, a hook, glue, or a nail.
- the partial skull comprises an upper surface
- the artificial dura covers the partial skull and the connecting element fixes the artificial dura on the upper surface.
- the connecting element comprises a screw, a hook, a rivet, glue, or a nail.
- the partial skull comprises a plurality of holes, and the artificial dura passes through the holes to cover the partial skull and is fixed by the connecting element on the upper surface.
- the connecting element comprises a suture.
- connecting element is installed between the partial skull and the artificial dura.
- the connecting element comprises two hook portions respectively inserted into the partial skull and the artificial dura.
- the connecting element comprises a base, a first engaging portion and a second engaging portion, the first engaging portion and the second engaging portion are installed at two opposite surfaces of the base, the first engaging portion is inserted into the partial skull, and the second engaging portion is inserted into the artificial dura.
- the connecting element comprises glue.
- the connecting element comprises a plurality of protrusions and grooves, the protrusions are installed on the artificial dura, the grooves are installed on the partial skull, and the protrusions are engaged with the grooves.
- the artificial dura biomedical device further comprises a plurality of pads and a ring, the pads are installed on the ring, the ring binds the artificial dura and the partial skull, and the pads are installed between the connecting element and the artificial dura for increasing friction.
- the invention provides another artificial dura biomedical device.
- the artificial dura biomedical device is combined with a partial skull cut from a whole skull.
- the artificial dura biomedical device comprises an artificial dura.
- the artificial dura and the partial skull respectively comprise a plurality of protrusions and grooves, and the protrusions are engaged with the grooves for fixing the partial skull to the artificial dura.
- protrusions and grooves are wedge shaped.
- the artificial dura is liquid at an initial state, and then the liquid artificial dura transforms into a colloidal or solid artificial dura.
- the invention provides a brain surgery method utilizing an artificial dura biomedical device.
- the steps comprises fixing an artificial dura to a partial skull via a connecting member; and fixing the partial skull with the artificial dura to a cut hole of a whole skull.
- steps further comprise cutting a partial skull from a whole skull.
- steps further comprise drilling a hole on the partial skull.
- steps further comprise making the artificial dura pass through the hole to cover the partial skull.
- step of fixing an artificial dura to the partial skull comprises fixing an artificial dura to the partial skull via a connecting member.
- the connecting element comprises a screw, a hook, a rivet, glue, a suture, or a nail.
- the step of fixing an artificial dura to the partial skull comprises fixing an artificial dura to the partial skull via a plurality of protrusions made of a liquid artificial dura engaging with a plurality of grooves of the partial skull.
- FIG. 1 is a schematic view showing a partial skull cut from a whole skull
- FIG. 2 is a schematic view showing a partial skull combined with an artificial dura biomedical device of an embodiment of the invention
- FIG. 3 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 4 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 5 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 6 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 7 is a schematic view showing a partial skull combined with an artificial dura biomedical device of an embodiment of the invention.
- FIG. 8 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 9 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 10 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 11 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 12 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 13 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 14 is a flow chart showing a brain surgery method utilizing an artificial dura biomedical device of an embodiment of the invention.
- FIG. 15 is a flow chart showing a brain surgery method utilizing an artificial dura biomedical device of another embodiment of the invention.
- FIG. 1 is a schematic view showing a partial skull cut from a whole skull.
- FIG. 2 is a schematic view showing a partial skull combined with an artificial dura biomedical device of an embodiment of the invention.
- FIG. 3 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 4 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 5 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 6 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- the artificial dura biomedical device 20 comprises an artificial dura 21 and a connecting element 22 a.
- the connecting element 22 a fixes the partial skull 11 with the artificial dura 21 .
- the partial skull 11 comprises an upper surface 111 and a side surface 112 .
- the artificial dura 21 of this embodiment covers the partial skull 11 and the connecting element 22 a fixes the artificial dura 21 on the side surface 112 .
- the connecting element 22 a is a binder for binding the artificial dura 21 and the partial skull 11 .
- the connecting element 22 a further comprises a screw, a hook, glue or a nail (not shown), and is not limited to the disclosed embodiment.
- FIGS. 3 and 4 the structures of FIGS. 3 and 4 are approximately similar to that of FIG. 2 and like elements are omitted for brevity.
- the main difference is that the connecting element 22 a fixes the artificial dura 21 on the upper surface 111 .
- the connecting element 22 a comprises a screw, a hook, a rivet, glue, or a nail, and is not limited to the disclosed embodiment.
- the structures of FIG. 5 is approximately similar to that of FIG. 3 , and like elements are omitted for brevity.
- the main difference is that the artificial dura biomedical device 20 further comprises a pad 23 .
- the pad 23 is installed between the connecting element 22 a and the artificial dura 21 for increasing friction.
- the structures of FIG. 5 is approximately similar to that of FIG. 3 and like elements are omitted for brevity.
- the main difference is that the artificial dura biomedical device 20 further comprises a plurality of pads 23 and a ring 24 .
- the pads 23 are installed on the ring 24 .
- the ring 24 binds the artificial dura 21 and the partial skull 11 and then the connecting element 22 a passes through the pad 23 for fixing the artificial dura 21 to the partial skull 11 .
- the pads 23 are installed between the connecting element 22 a and the artificial dura 21 for increasing friction.
- FIG. 7 is a schematic view showing a partial skull combined with an artificial dura biomedical device of an embodiment of the invention.
- FIG. 8 is a schematic view showing that a partial skull combined with an artificial dura biomedical device of another embodiment of the invention is combined with a whole skull.
- the artificial dura biomedical device 20 comprises an artificial dura 21 and a connecting element 22 a.
- the partial skull 11 further comprises a plurality of holes 113 for a doctor to easily take the partial skull 11 from the whole skull 10 (shown in FIG. 1 ).
- the artificial dura 21 comprises four extending parts 212 .
- the artificial dura 21 covers the partial skull 11 and is fixed by the connecting element 22 a and the extending parts 212 on the side surface 112 .
- the connecting element 22 a is a screw.
- the connecting element 22 a further comprises glue (not shown), and is not limited to the disclosed embodiment.
- the artificial dura biomedical device 20 comprises an artificial dura 21 and a connecting element 22 a.
- the artificial dura 21 covers the partial skull 11 and is fixed by the connecting element 22 a on the upper surface 111 of the partial skull 11 .
- the connecting element 22 a is a hook.
- the connecting element 22 a further comprises glue (not shown), and is not limited to the disclosed embodiment.
- FIG. 9 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- the partial skull 11 further comprises a plurality of holes 113 .
- the connecting element 22 a comprises a suture. The suture hangs the artificial dura 21 . Then, the suture passes through the hole 113 for making the artificial dura 21 to be fixed under the partial skull 11 .
- FIG. 10 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- FIG. 11 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- the connecting element 22 b is installed between the partial skull 11 and the artificial dura 21 .
- the connecting element 22 b comprises two hook portions 221 b and 222 b respectively laterally inserted into the partial skull 11 and the artificial dura 21 .
- the connecting element 22 c comprises a base 221 c, a first engaging portion 222 c and a second engaging portion 223 c.
- the first engaging portion 222 c and the second engaging portion 223 c are installed at two opposite surfaces 224 c and 225 c of the base 221 c.
- the first engaging portion 222 c is inserted into the partial skull 11
- the second engaging portion 223 c is inserted into the artificial dura 21 .
- FIG. 12 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- the partial skull 11 comprises a plurality of grooves 114 .
- the artificial dura 22 d is liquid at an initial state.
- the liquid artificial dura 22 d is poured on the partial skull 11 and fills the grooves 114 .
- the liquid artificial dura 22 d transforms into colloidal or solid artificial dura 21 and a plurality of protrusions 211 a later.
- the artificial dura 21 is adhered on the partial skull 11 and is engaged with the partial skull 11 by the protrusions 211 a.
- the protrusions 211 a and grooves 114 are wedge shaped.
- the artificial dura 22 d at an initial state is liquid.
- FIG. 13 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.
- the artificial dura biomedical device 20 comprises an artificial dura 21 and two connecting elements 22 e.
- the connecting elements 22 e comprise a plurality of protrusions 211 b and grooves 114 .
- the protrusions 211 b are engaged with the grooves 114 for fixing the partial skull 11 to the artificial dura 21 .
- the protrusions 211 b and the artificial dura 21 are a unitary and single member, and the grooves 114 are installed on the partial skull 11 .
- the protrusions 211 b and grooves 114 are wedge shaped.
- FIG. 14 is a flow chart showing a brain surgery method utilizing an artificial dura biomedical device of an embodiment of the invention.
- the steps comprises: a. cutting a partial skull 11 from a whole skull 10 ; b. fixing an artificial dura 21 to the partial skull 11 ; and c. fixing the partial skull 11 with the artificial dura 21 to a cut hole 12 of the whole skull 10 .
- the artificial dura 21 is cut as a suitable size and thickness in advance.
- the artificial dura 21 may be fixed to the partial skull 11 via the connecting member 22 a, 22 b, 22 c and 22 e (shown in FIGS. 2-8 , 10 , 11 and 13 ).
- the artificial dura 21 may be fixed to the partial skull 11 via the protrusions 211 a made of the liquid artificial dura 22 d engaging with the grooves 114 of the partial skull 11 (shown in FIG. 12 ).
- FIG. 15 is a flow chart showing a brain surgery method utilizing an artificial dura biomedical device of another embodiment of the invention.
- the steps comprises: a1. cutting a partial skull 11 from a whole skull 10 ; b1. drilling a hole 113 on the partial skull 11 ; c1. making the artificial dura 21 to pass through the hole 113 for covering the partial skull 11 ; d1. fixing an artificial dura 21 to the partial skull 11 via a connecting member 22 ; and e1. fixing the partial skull 11 with the artificial dura 21 to a cut hole 12 of the whole skull 10 .
- the invention avoids the artificial dura 21 from being directly sutured with the broken dura on the cerebral tissue to decrease risks and time-consumption of the brain surgery. Moreover, the artificial dura 21 fixed on the partial skull 11 can stably cover the broken dura via engagement of the whole skull 10 and eliminates movement in the whole skull 10 and leakage of cerebrospinal fluid.
Abstract
Description
- This application claims the benefit of U.S. Provisional Application No. 61/141,610, filed on Dec. 30, 2008, the entirety of which is incorporated by reference herein.
- 1. Field of the Invention
- The present invention relates to an artificial dura biomedical device and a brain surgery method utilizing the same.
- 2. Description of the Related Art
- During cerebral neurosurgery, a skull must be sawed and a dura must be broken. After finishing the cerebral neurosurgery, a surgeon uses dura substitutes to repair the broken dura. Clinically, the dura substitutes may be made of natural and synthetic materials, for example autografts, allografts, xenografts, absorbable or unabsorbable polymers. The dura substitutes help to prevent infection, bad tissue response, leakage of cerebrospinal fluid, and cerebral tissue adhesion. Further, the dura substitutes promote tissue regeneration of dura mater.
- The dura repairing method comprises suture and non-suture methods. The suture methods are applied to the dura made of autografts, allografts, xenografts, and unabsorbable polymers (for example Neuro-Patch). Clinically, common problems include a long surgery procedure and an inconvenient operation so that surgery risk increases. To solve clinical requirements of dura repair, non-suture dura, for example DuraGen (Integra), is provided for a shorter surgery procedure and a more convenient operation so that surgery risk may decrease. Thus, non-suture dura is usually used.
- The most frequent and convenient artificial dura used is DuraGen, made of collagen. Surgery method steps utilizing DuraGen only comprise cutting the DuraGen to be bigger than the broken dura and covering the cut DuraGen on the broken dura. However, non-suture dura has bad fixity so that the dura easily moves and cerebrospinal fluid leaks.
- The invention provides an artificial dura biomedical device. The artificial dura biomedical device is combined with a partial skull cut from a whole skull. The artificial dura biomedical device comprises an artificial dura and a connecting element. The connecting element fixes the partial skull with the artificial dura.
- Note that the partial skull comprises a side surface, the artificial dura covers the partial skull and the connecting element fixes the artificial dura on the side surface.
- Note that the connecting element comprises a binder, a screw, a hook, glue, or a nail.
- Note that the partial skull comprises an upper surface, the artificial dura covers the partial skull and the connecting element fixes the artificial dura on the upper surface.
- Note that the connecting element comprises a screw, a hook, a rivet, glue, or a nail.
- Note that the partial skull comprises a plurality of holes, and the artificial dura passes through the holes to cover the partial skull and is fixed by the connecting element on the upper surface.
- Note that the connecting element comprises a suture.
- Note that the connecting element is installed between the partial skull and the artificial dura.
- Note that the connecting element comprises two hook portions respectively inserted into the partial skull and the artificial dura.
- Note that the connecting element comprises a base, a first engaging portion and a second engaging portion, the first engaging portion and the second engaging portion are installed at two opposite surfaces of the base, the first engaging portion is inserted into the partial skull, and the second engaging portion is inserted into the artificial dura.
- Note that the connecting element comprises glue.
- Note that the connecting element comprises a plurality of protrusions and grooves, the protrusions are installed on the artificial dura, the grooves are installed on the partial skull, and the protrusions are engaged with the grooves.
- Note that the artificial dura biomedical device further comprises a plurality of pads and a ring, the pads are installed on the ring, the ring binds the artificial dura and the partial skull, and the pads are installed between the connecting element and the artificial dura for increasing friction.
- The invention provides another artificial dura biomedical device. The artificial dura biomedical device is combined with a partial skull cut from a whole skull. The artificial dura biomedical device comprises an artificial dura. The artificial dura and the partial skull respectively comprise a plurality of protrusions and grooves, and the protrusions are engaged with the grooves for fixing the partial skull to the artificial dura.
- Note that the protrusions and grooves are wedge shaped.
- Note that the artificial dura is liquid at an initial state, and then the liquid artificial dura transforms into a colloidal or solid artificial dura.
- The invention provides a brain surgery method utilizing an artificial dura biomedical device. The steps comprises fixing an artificial dura to a partial skull via a connecting member; and fixing the partial skull with the artificial dura to a cut hole of a whole skull.
- Note that the steps further comprise cutting a partial skull from a whole skull.
- Note that the steps further comprise drilling a hole on the partial skull.
- Note that the steps further comprise making the artificial dura pass through the hole to cover the partial skull.
- Note that step of fixing an artificial dura to the partial skull comprises fixing an artificial dura to the partial skull via a connecting member.
- Note that the connecting element comprises a screw, a hook, a rivet, glue, a suture, or a nail.
- Note that the step of fixing an artificial dura to the partial skull comprises fixing an artificial dura to the partial skull via a plurality of protrusions made of a liquid artificial dura engaging with a plurality of grooves of the partial skull.
- A detailed description is given in the following embodiments with reference to the accompanying drawings.
- The present invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
-
FIG. 1 is a schematic view showing a partial skull cut from a whole skull; -
FIG. 2 is a schematic view showing a partial skull combined with an artificial dura biomedical device of an embodiment of the invention; -
FIG. 3 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 4 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 5 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 6 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 7 is a schematic view showing a partial skull combined with an artificial dura biomedical device of an embodiment of the invention; -
FIG. 8 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 9 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 10 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 11 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 12 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 13 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention; -
FIG. 14 is a flow chart showing a brain surgery method utilizing an artificial dura biomedical device of an embodiment of the invention; and -
FIG. 15 is a flow chart showing a brain surgery method utilizing an artificial dura biomedical device of another embodiment of the invention. - The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
-
FIG. 1 is a schematic view showing a partial skull cut from a whole skull.FIG. 2 is a schematic view showing a partial skull combined with an artificial dura biomedical device of an embodiment of the invention.FIG. 3 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.FIG. 4 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.FIG. 5 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.FIG. 6 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention. - Referring to
FIGS. 1 and 2 , during cerebral neurosurgery, a doctor cuts apartial skull 11 from awhole skull 10 and a dura under thewhole skull 10 is broken. At this time, a cut hole is formed on the whole skull. After a doctor repairs the cerebral nerve, the broken dura must be repair and then thepartial skull 11 is put to cover thecut hole 12. Thus, the artificial dura biomedical device of the invention is provided. The artificial durabiomedical device 20 comprises anartificial dura 21 and a connectingelement 22 a. The connectingelement 22 a fixes thepartial skull 11 with theartificial dura 21. Thepartial skull 11 comprises anupper surface 111 and aside surface 112. Referring toFIG. 2 , theartificial dura 21 of this embodiment covers thepartial skull 11 and the connectingelement 22 a fixes theartificial dura 21 on theside surface 112. In this embodiment, the connectingelement 22 a is a binder for binding theartificial dura 21 and thepartial skull 11. The connectingelement 22 a further comprises a screw, a hook, glue or a nail (not shown), and is not limited to the disclosed embodiment. - Referring to
FIGS. 3 and 4 , the structures ofFIGS. 3 and 4 are approximately similar to that ofFIG. 2 and like elements are omitted for brevity. The main difference is that the connectingelement 22 a fixes theartificial dura 21 on theupper surface 111. In the embodiments ofFIGS. 3 and 4 , the connectingelement 22 a comprises a screw, a hook, a rivet, glue, or a nail, and is not limited to the disclosed embodiment. - Referring to
FIG. 5 , the structures ofFIG. 5 is approximately similar to that ofFIG. 3 , and like elements are omitted for brevity. The main difference is that the artificial durabiomedical device 20 further comprises apad 23. Thepad 23 is installed between the connectingelement 22 a and theartificial dura 21 for increasing friction. - Referring to
FIG. 6 , the structures ofFIG. 5 is approximately similar to that ofFIG. 3 and like elements are omitted for brevity. The main difference is that the artificial durabiomedical device 20 further comprises a plurality ofpads 23 and aring 24. Thepads 23 are installed on thering 24. Thering 24 binds theartificial dura 21 and thepartial skull 11 and then the connectingelement 22 a passes through thepad 23 for fixing theartificial dura 21 to thepartial skull 11. Thepads 23 are installed between the connectingelement 22 a and theartificial dura 21 for increasing friction. -
FIG. 7 is a schematic view showing a partial skull combined with an artificial dura biomedical device of an embodiment of the invention.FIG. 8 is a schematic view showing that a partial skull combined with an artificial dura biomedical device of another embodiment of the invention is combined with a whole skull. - Referring to
FIG. 7 , the artificial durabiomedical device 20 comprises anartificial dura 21 and a connectingelement 22 a. Thepartial skull 11 further comprises a plurality ofholes 113 for a doctor to easily take thepartial skull 11 from the whole skull 10 (shown inFIG. 1 ). Theartificial dura 21 comprises four extendingparts 212. Theartificial dura 21 covers thepartial skull 11 and is fixed by the connectingelement 22 a and the extendingparts 212 on theside surface 112. In this embodiment, the connectingelement 22 a is a screw. The connectingelement 22 a further comprises glue (not shown), and is not limited to the disclosed embodiment. - Referring to
FIG. 8 , the artificial durabiomedical device 20 comprises anartificial dura 21 and a connectingelement 22 a. Theartificial dura 21 covers thepartial skull 11 and is fixed by the connectingelement 22 a on theupper surface 111 of thepartial skull 11. In this embodiment, the connectingelement 22 a is a hook. The connectingelement 22 a further comprises glue (not shown), and is not limited to the disclosed embodiment. After thepartial skull 11 is combined with theartificial dura 21, thepartial skull 11 and theartificial dura 21 are put in and fills thecut hole 12 of the whole skull (referring toFIG. 1 ). -
FIG. 9 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention. Referring toFIG. 9 , thepartial skull 11 further comprises a plurality ofholes 113. The connectingelement 22 a comprises a suture. The suture hangs theartificial dura 21. Then, the suture passes through thehole 113 for making theartificial dura 21 to be fixed under thepartial skull 11. -
FIG. 10 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention.FIG. 11 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention. - Referring to
FIG. 10 , the connectingelement 22 b is installed between thepartial skull 11 and theartificial dura 21. The connectingelement 22 b comprises twohook portions partial skull 11 and theartificial dura 21. - Referring to
FIG. 11 , the connectingelement 22 c comprises a base 221 c, a firstengaging portion 222 c and a secondengaging portion 223 c. The firstengaging portion 222 c and the secondengaging portion 223 c are installed at twoopposite surfaces engaging portion 222 c is inserted into thepartial skull 11, and the secondengaging portion 223 c is inserted into theartificial dura 21. -
FIG. 12 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention. Referring toFIG. 12 , thepartial skull 11 comprises a plurality ofgrooves 114. In this embodiment, theartificial dura 22 d is liquid at an initial state. Thus, the liquidartificial dura 22 d is poured on thepartial skull 11 and fills thegrooves 114. Due to the material feature, the liquidartificial dura 22 d transforms into colloidal or solidartificial dura 21 and a plurality ofprotrusions 211 a later. Thus, theartificial dura 21 is adhered on thepartial skull 11 and is engaged with thepartial skull 11 by theprotrusions 211 a. Note that theprotrusions 211 a andgrooves 114 are wedge shaped. Theartificial dura 22 d at an initial state is liquid. -
FIG. 13 is a schematic view showing a partial skull combined with an artificial dura biomedical device of another embodiment of the invention. The artificial durabiomedical device 20 comprises anartificial dura 21 and two connectingelements 22 e. The connectingelements 22 e comprise a plurality ofprotrusions 211 b andgrooves 114. Theprotrusions 211 b are engaged with thegrooves 114 for fixing thepartial skull 11 to theartificial dura 21. In this embodiment, theprotrusions 211 b and theartificial dura 21 are a unitary and single member, and thegrooves 114 are installed on thepartial skull 11. Note that theprotrusions 211 b andgrooves 114 are wedge shaped. -
FIG. 14 is a flow chart showing a brain surgery method utilizing an artificial dura biomedical device of an embodiment of the invention. Referring toFIGS. 1 , 2 and 14, the steps comprises: a. cutting apartial skull 11 from awhole skull 10; b. fixing anartificial dura 21 to thepartial skull 11; and c. fixing thepartial skull 11 with theartificial dura 21 to acut hole 12 of thewhole skull 10. Note that theartificial dura 21 is cut as a suitable size and thickness in advance. In the b step, theartificial dura 21 may be fixed to thepartial skull 11 via the connectingmember FIGS. 2-8 , 10, 11 and 13). Alternatively, theartificial dura 21 may be fixed to thepartial skull 11 via theprotrusions 211 a made of the liquidartificial dura 22 d engaging with thegrooves 114 of the partial skull 11 (shown inFIG. 12 ). -
FIG. 15 is a flow chart showing a brain surgery method utilizing an artificial dura biomedical device of another embodiment of the invention. Referring toFIGS. 1 , 9 and 15, the steps comprises: a1. cutting apartial skull 11 from awhole skull 10; b1. drilling ahole 113 on thepartial skull 11; c1. making theartificial dura 21 to pass through thehole 113 for covering thepartial skull 11; d1. fixing anartificial dura 21 to thepartial skull 11 via a connecting member 22; and e1. fixing thepartial skull 11 with theartificial dura 21 to acut hole 12 of thewhole skull 10. - In summary, the invention avoids the
artificial dura 21 from being directly sutured with the broken dura on the cerebral tissue to decrease risks and time-consumption of the brain surgery. Moreover, theartificial dura 21 fixed on thepartial skull 11 can stably cover the broken dura via engagement of thewhole skull 10 and eliminates movement in thewhole skull 10 and leakage of cerebrospinal fluid. - While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Claims (23)
Priority Applications (2)
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US12/650,398 US20100168871A1 (en) | 2008-12-30 | 2009-12-30 | Artificial dura biomedical device and brain surgery method utilizing the same |
US13/458,903 US8986394B2 (en) | 2008-12-30 | 2012-04-27 | Artificial dura biomedical device and brain surgery method utilizing the same |
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US13/458,903 Active 2030-05-31 US8986394B2 (en) | 2008-12-30 | 2012-04-27 | Artificial dura biomedical device and brain surgery method utilizing the same |
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WO2010086508A3 (en) * | 2009-01-30 | 2011-05-05 | Pekka Vallittu | A composite and its use |
US20230045643A1 (en) * | 2021-08-06 | 2023-02-09 | John Baeke | Apparatus for cutting a material and a method for cutting a negative pressure wound therapy dressing |
WO2023029918A1 (en) * | 2021-09-03 | 2023-03-09 | 苏州景昱医疗器械有限公司 | Skull slotting tool |
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KR101567003B1 (en) * | 2013-12-27 | 2015-11-06 | 경희대학교 산학협력단 | Fixing Device for Splinters of a Bone and Drill Assembly for Cutting Splinters of a Bone |
CA2958570C (en) * | 2014-08-20 | 2017-11-28 | Synaptive Medical (Barbados) Inc. | Intra-operative determination of dimensions for fabrication of artificial bone flap |
US20160331539A1 (en) * | 2015-05-12 | 2016-11-17 | Elwha Llc | Modifiable implants |
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US20230045643A1 (en) * | 2021-08-06 | 2023-02-09 | John Baeke | Apparatus for cutting a material and a method for cutting a negative pressure wound therapy dressing |
US11806222B2 (en) * | 2021-08-06 | 2023-11-07 | John Baeke | Apparatus for cutting a material and a method for cutting a negative pressure wound therapy dressing |
WO2023029918A1 (en) * | 2021-09-03 | 2023-03-09 | 苏州景昱医疗器械有限公司 | Skull slotting tool |
Also Published As
Publication number | Publication date |
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TW201029636A (en) | 2010-08-16 |
TWI496566B (en) | 2015-08-21 |
US8986394B2 (en) | 2015-03-24 |
US20120215322A1 (en) | 2012-08-23 |
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