CN107874873B - Stretchable artificial rib with peek coating - Google Patents
Stretchable artificial rib with peek coating Download PDFInfo
- Publication number
- CN107874873B CN107874873B CN201710912090.5A CN201710912090A CN107874873B CN 107874873 B CN107874873 B CN 107874873B CN 201710912090 A CN201710912090 A CN 201710912090A CN 107874873 B CN107874873 B CN 107874873B
- Authority
- CN
- China
- Prior art keywords
- stretching
- groove
- stretching structure
- limiting
- cavity
- 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.)
- Active
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 13
- 238000000576 coating method Methods 0.000 title claims abstract description 13
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000000670 limiting effect Effects 0.000 claims description 72
- 239000010410 layer Substances 0.000 claims description 19
- 239000002344 surface layer Substances 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims 2
- 210000000988 bone and bone Anatomy 0.000 abstract description 11
- 206010067484 Adverse reaction Diseases 0.000 abstract description 2
- 230000006838 adverse reaction Effects 0.000 abstract description 2
- 231100000572 poisoning Toxicity 0.000 abstract description 2
- 230000000607 poisoning effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 11
- 230000007423 decrease Effects 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 2
- 210000001562 sternum Anatomy 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 206010031149 Osteitis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
Classifications
-
- 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
-
- 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
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/06—Titanium or titanium alloys
-
- 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
- A61L27/14—Macromolecular materials
- A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
-
- 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
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
-
- 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
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- 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
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants
Abstract
The invention provides a stretchable artificial rib with a peek coating, which comprises the following components: a first stretching structure, a second stretching structure, and a stretching chamber; one ends of the first stretching structure and the second stretching structure are a first connecting end and a second connecting end, and the other ends of the first stretching structure and the second stretching structure are respectively arranged at two ends of the stretching cavity and can be stretched outwards from the stretching cavity respectively; the first stretching structure, the second stretching structure and the stretching cavity are made of titanium alloy, and the outer surface of the titanium alloy is coated with a peek layer. The invention solves the problem of human poisoning caused by the adoption of titanium alloy by the artificial ribs in the prior art. Can well combine human bones with materials, and the peek material has good biocompatibility and can not generate rejection and other adverse reactions between human bodies.
Description
Technical Field
The invention relates to the technical field of artificial bones, in particular to a stretchable artificial rib with a peek coating.
Background
The defects of the existing artificial ribs are mostly repaired by titanium alloy mesh plates, and the titanium alloy mesh plates have the characteristics of high strength, no toxicity and good biocompatibility with human bodies, but as the titanium alloy mesh plates are made of a metal material, scientific researches find that the titanium alloy mesh plates are positioned in the human bodies and can cause electrochemical reaction to generate electrochemical corrosion, and the tissues around the titanium alloy mesh plates of the human bodies can be blackened and even necrosis in the human bodies for a long time. Long-term implantation is extremely disadvantageous to the human body.
Disclosure of Invention
The invention provides a stretchable artificial rib with a peek coating, which aims to overcome the technical problems.
The invention relates to a stretchable artificial rib with a peek coating, which comprises the following components:
a first stretching structure, a second stretching structure, and a stretching chamber;
one end of the first stretching structure is a first connecting end, one end of the second stretching structure is a second connecting end, and the other ends of the first stretching structure and the second stretching structure are respectively arranged at two ends of the stretching cavity and can be respectively stretched outwards from the stretching cavity;
the drawing type rail is arranged in the drawing cavity, limiting teeth are arranged on two sides of one end, which is arranged in the drawing cavity, of the first drawing structure and the second drawing structure, limiting structures matched with the limiting teeth are respectively arranged on two sides of the rail, an included angle between an inclined plane of each limiting tooth and the drawing direction is larger than 90 degrees, and through grooves are formed in the middle parts of the first drawing structure and the second drawing structure, which correspond to the positions of the limiting teeth;
the first stretching structure, the second stretching structure and the stretching cavity are made of titanium alloy, and the surface of the titanium alloy is coated with a peek layer.
Further, the peek layer includes: the titanium alloy comprises a base layer and a surface layer, wherein the base layer is covered on the surface of the titanium alloy, the surface layer is arranged on the base layer, and the surface layer is of an equidistant rugged honeycomb structure.
Further, a first limiting block is arranged at the front end of the through groove corresponding to the first limiting tooth of the first stretching structure and the second stretching structure in the stretching direction, and second limiting blocks matched with the first limiting block are arranged at two ends of the stretching cavity.
Further, the width of the first limiting block is smaller than the width of the through groove, a first side through groove and a second side through groove are formed in two sides of the first limiting block, the total width of the first limiting block is equal to that of the through groove, the length of the first side through groove and the length of the second side through groove are larger than that of the first limiting block, round holes are formed in the top ends of the first side through groove and the second side through groove, and the peek material is injected into the first side through groove and the second side through groove.
Further, the limiting teeth are right triangle teeth, and the limiting structure is a double inverted tooth protruding from the track or a clamping groove embedded in the track.
Further, the heights of the limiting teeth decrease gradually along the stretching direction, and the distance between the through groove and the edges of the first stretching structure and the second stretching structure decreases along the stretching direction.
Further, the joint of the stretching cavity and the first stretching structure as well as the second stretching structure is provided with a sealing ring, one end of the sealing ring is clamped with the stretching cavity, and the other end of the sealing ring is provided with a reinforcing ring.
The invention solves the problem of human poisoning caused by the adoption of titanium alloy by the artificial ribs in the prior art. Can well combine human bones with materials, and the peek material has good biocompatibility and can not generate rejection and other adverse reactions between human bodies.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic view of a stretchable artificial rib structure with a peek coating according to the present invention;
FIG. 2 is a schematic view of the structure of the sealing ring of the present invention;
FIG. 3 is an enlarged partial cross-sectional view of FIG. 2 at A;
FIG. 4 is another enlarged partial cross-sectional view of FIG. 2 at A;
FIG. 5 is a schematic view of a stopper according to the present invention;
FIG. 6 is an enlarged partial cross-sectional view of FIG. 2A;
FIG. 7 is a schematic of the honeycomb structure of the Peek coating of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
FIG. 1 is a schematic view of a stretchable artificial rib with a peek coating according to the present invention, as shown in FIG. 1, the stretchable artificial rib according to the present embodiment may include:
a first tensile structure 1, a second tensile structure 2 and a tensile cavity 3;
one end of the first stretching structure 1 is a first connecting end, one end of the second stretching structure 2 is a second connecting end, and the other ends of the first stretching structure 1 and the second stretching structure 2 are respectively arranged at two ends of the stretching cavity 3 and can be stretched outwards from the stretching cavity 3;
the drawing type rail is arranged in the drawing cavity 3, limiting teeth 5 are arranged on two sides of one end of the first drawing structure 1 and the second drawing structure 2, which are arranged in the drawing cavity 3, limiting structures matched with the limiting teeth 5 are respectively arranged on two sides of the rail, an included angle between an inclined plane of the limiting teeth 5 and the drawing direction is larger than 90 degrees, and through grooves 13 are formed in the middle of the first drawing structure 1 and the second drawing structure 2 and correspond to the positions of the limiting teeth 5;
the first stretching structure, the second stretching structure and the stretching cavity are made of titanium alloy, and the surface of the titanium alloy is coated with a peek layer.
Specifically, the artificial rib of the present embodiment includes three parts: the stretching device comprises a first stretching structure 1, a second stretching structure 2 and a stretching cavity 3, wherein one ends of the first stretching structure 1 and the second stretching structure 2 are respectively arranged at two ends of the stretching cavity 3, and can be stretched outwards from the stretching cavity 3. The other ends of the first stretching structure 1 and the second stretching structure 2 are respectively a first connecting end and a second connecting end. When the artificial rib is placed laterally within the chest cavity, the first connecting end may be connected to a vertebra and the second connecting end may be connected to the sternum. Alternatively, the first connecting end is connected to the sternum and the second connecting end is connected to the vertebrae. This is not limited thereto. When the artificial rib of the embodiment is longitudinally placed in the chest, the first connecting end and the second connecting end can be connected with other ribs in the up-down direction. The inclined plane of the limiting teeth 5 and the included angle of the stretching direction are larger than 90 degrees, so that the relative resistance between the first stretching structure 1 or the second stretching structure 2 and the limiting structures on two sides of the track when being pulled out is reduced.
The first stretching structure 1 and the first stretching structure 2 may be on the same horizontal plane, and in order to shorten the length of the stretching cavity 3, the first stretching structure 1 and the second stretching structure 2 may also be located in the upper layer and the lower layer in the stretching cavity 3. The structures of all parts of the artificial rib of the embodiment adopt titanium alloy outer surfaces to be sprayed with Peek layers. The Peek has self-lubricity and good biocompatibility, and the elastic modulus is the same as that of human bone, so that the elastic modulus of the artificial bone prepared from the titanium alloy can be adjusted to better match with that of human bone, and the artificial bone has high toughness and strength.
As shown in fig. 7, further, the peek layer includes: a base layer covering the surface of the titanium alloy and a surface layer arranged on the base layer, wherein the surface layer is an equidistant rugged honeycomb structure 19.
Specifically, the base layer of the peek layer of this embodiment completely covers the titanium alloy surface. The problems of stress shielding, bone absorption, bone inflammation and the like caused by the fact that the elastic modulus of the artificial bone prepared from the titanium alloy is greatly different from that of a human bone are solved. The surface layer above the surface layer is an equidistant rugged honeycomb structure. The honeycomb structure has a particular difference of 1/2 peak between adjacent rows or columns for each column or row of undulating surfaces during 3D printing. By analogy, the skin forms an equally spaced rugged honeycomb structure 19. Is favorable for the climbing growth of surrounding tissues.
As shown in fig. 5, a first limiting block 9 is disposed at the front end of a through groove 13 corresponding to a first limiting tooth of the first stretching structure 1 and the second stretching structure 2 in the stretching direction, and second limiting blocks 12 matched with the first limiting block 9 are disposed at two ends of the stretching cavity 3.
Specifically, when the first stretching structure 1 and the second stretching structure 2 are stretched outwards to the front end of the limiting teeth under the action of external force, in order to prevent the limiting teeth from extending out of the stretching cavity 3 to damage human tissues, a first limiting block 9 is arranged at the front end of the stretching structure through groove 13, and a second limiting block 12 is arranged at two ends of the stretching cavity 3. The second limiting block 12 is matched with the first limiting block 9, and the stretching structure is prevented from stretching outwards continuously. The first limiting block 9 can be arranged at the top of the stretching structure, can be arranged at the bottom of the stretching structure, and can be arranged at the top and the bottom simultaneously. The second limiting block 12 is arranged at the top, the bottom or both the top and the bottom of the stretching cavity 3 according to the position where the first limiting block 9 is arranged.
As shown in fig. 4, the width of the first limiting block 9 is smaller than the width of the through groove 13, a first side through groove 7 and a second side through groove 9 are formed on two sides of the first limiting block 9, the total width of the first side through groove 7, the second side through groove 8 and the first limiting block 9 is equal to that of the through groove 13, the lengths of the first side through groove 7 and the second side through groove 8 are greater than that of the first limiting block 9, round holes 18 are formed in the top ends of the first side through groove 7 and the second side through groove 8, and peek materials are injected into the first side through groove 7 and the second side through groove 8.
Specifically, the total width of the first limiting block 9 and the first side through groove 7 and the second side through groove 8 on both sides of the first limiting block is equal to the width of the through groove 13. The through grooves 13 are stressed inwards by the limiting teeth 5 during the outward stretching movement of the first stretching structure 1 and the second stretching structure 2. The circular holes 18 at the top ends of the first side through groove 7 and the second side through groove 8 disperse stress at the end of the through groove 13. The first tensile structure 1 and the second tensile structure 2 are prevented from splitting under stress. The first side through groove 7 and the second side through groove 8 are filled with the peek material, and the impact force of the first limiting block 9 and the second limiting block 12 is buffered due to the elasticity of the peek material. The secondary injury of human tissues caused by the damage of the artificial ribs is prevented.
Further, the height of the limiting teeth 5 decreases gradually along the stretching direction, and the distance between the through groove 13 and the edges of the first stretching structure 1 and the second stretching structure 2 decreases along the stretching direction.
Specifically, as the human body grows, the hardness of the bone increases. The outward tensile stress of the first tensile structure 1 and the second tensile structure 2 also becomes gradually larger. Therefore, the height of the spacing teeth 5 decreases in sequence in the stretching direction. I.e. the innermost limiting tooth height is greatest. The stress of the limiting teeth on the stretching structure is increased correspondingly to the increase of the height of the limiting teeth, so that the distance between the through groove 13 and the edges of the first stretching structure 1 and the second stretching structure 2 is reduced along the stretching direction. The height and distance change is further adapted to the human body production process, and the service life of the artificial rib is prolonged.
As shown in fig. 3 and 4, further, the limiting teeth 5 are right triangle teeth, and the limiting structure is a double inverted tooth 6 protruding on the track or a clamping groove 10 embedded in the track.
Specifically, the first stretching structure 1 and the second stretching structure 2 of the artificial rib of the embodiment complete biaxial stretching through the drawing type track arranged in the stretching cavity 3. One end of the first stretching structure 1 and one end of the second stretching structure 2, which are arranged in the stretching cavity 3, are provided with limiting teeth 5, as shown in fig. 3, the limiting teeth 5 are triangular teeth, and the limiting structure is a double inverted tooth 6 opposite to the limiting teeth 5; as shown in fig. 4, the limiting teeth 5 are triangular teeth, and the limiting structure may also be a clamping groove 10 opposite to the limiting teeth 5. The spacing teeth may also be other shapes. When the first stretching structure 1 and the second stretching structure 2 stretch outwards from the inside of the stretching cavity 3, the limiting teeth 5 deform inwards through the through grooves 13 formed in the first stretching structure 1 and the second stretching structure 2, and after moving outwards to the position of the limiting structure, the limiting structure prevents reverse movement.
Further, as shown in fig. 2, a sealing ring 11 is disposed at the joint of the stretching cavity 3 and the first stretching structure 1, and the second stretching structure 2, one end of the sealing ring 11 is clamped with the stretching cavity, and a reinforcing ring is disposed at the other end of the sealing ring.
Specifically, as shown in fig. 6, in this embodiment, a sealing ring 11 is provided at the connection between the stretching chamber 3 and the first stretching structure 1 and the second stretching structure 2, and the sealing ring 11 can prevent tissue from growing into the stretching chamber. Resulting in the first stretched structure 1 and the second stretched structure 2 not being stretched outwards. The end of the sealing ring 11, which is clamped with the stretching cavity 3, can be of an annular structure or a zigzag structure, wherein the sealing ring 11 is provided with sawteeth 15, and the stretching cavity 3 is provided with clamping grooves 16 which are matched with the sawteeth in shape. The other end is provided with a reinforcing ring 14 which further reinforces the tightness between the closed ring 11 and the tensile structure.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (4)
1. A stretchable artificial rib with a peek coating, comprising:
a first stretching structure, a second stretching structure, and a stretching chamber;
one end of the first stretching structure is a first connecting end, one end of the second stretching structure is a second connecting end, and the other ends of the first stretching structure and the second stretching structure are respectively arranged at two ends of the stretching cavity and can be respectively stretched outwards from the stretching cavity;
the front end of the through groove corresponding to the first limit tooth of the first stretching structure and the second stretching structure in the stretching direction is provided with a first limit block, two ends of the stretching cavity are provided with a second limit block matched with the first limit block, the width of the first limit block is smaller than that of the through groove, two sides of the first limit block are provided with a first side through groove and a second side through groove, the total width of the first side through groove, the second side through groove and the first limiting block is equal to that of the through groove, the lengths of the first side through groove and the second side through groove are larger than that of the first limiting block, round holes are formed in the tops of the first side through groove and the second side through groove, and the peek material is injected into the first side through groove and the second side through groove;
the drawing type rail is arranged in the drawing cavity, limiting teeth are arranged on two sides of one end, which is arranged in the drawing cavity, of the first drawing structure and the second drawing structure, limiting structures matched with the limiting teeth are respectively arranged on two sides of the rail, an included angle between an inclined plane of each limiting tooth and the drawing direction is larger than 90 degrees, and through grooves are formed in the middle parts of the first drawing structure and the second drawing structure, which correspond to the positions of the limiting teeth;
the first stretching structure, the second stretching structure and the stretching cavity are made of titanium alloy, and a peek layer is coated on the outer surface of the titanium alloy; the tensile chamber with the junction of first tensile structure the tensile structure of second sets up the closed loop, closed loop one end with tensile chamber joint, the other end sets up the stiffening ring.
2. The stretchable artificial rib with a peek coating according to claim 1, wherein the peek layer comprises: the titanium alloy comprises a base layer and a surface layer, wherein the base layer is covered on the surface of the titanium alloy, the surface layer is arranged on the base layer, and the surface layer is of an equidistant rugged honeycomb structure.
3. The stretchable artificial rib with a peek coating according to claim 1, wherein the limiting teeth are right triangle teeth, and the limiting structure is a double inverted tooth protruding from the track or a clamping groove embedded in the track.
4. The stretchable artificial rib with the peek coating according to claim 1, wherein the height of the limiting teeth is gradually decreased along the stretching direction, and the distance between the through groove and the edges of the first stretching structure and the second stretching structure is decreased along the stretching direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710912090.5A CN107874873B (en) | 2017-09-29 | 2017-09-29 | Stretchable artificial rib with peek coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710912090.5A CN107874873B (en) | 2017-09-29 | 2017-09-29 | Stretchable artificial rib with peek coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107874873A CN107874873A (en) | 2018-04-06 |
| CN107874873B true CN107874873B (en) | 2024-01-23 |
Family
ID=61781089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710912090.5A Active CN107874873B (en) | 2017-09-29 | 2017-09-29 | Stretchable artificial rib with peek coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107874873B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046278A (en) * | 1989-03-31 | 1990-10-24 | 全苏医学技术科学研究和实验研究院 | The device that restoration of tubular bone missing portion is used |
| CN101534751A (en) * | 2006-09-15 | 2009-09-16 | 先锋外科技术公司 | Joint arthroplasty devices having articulating members |
| CN101601613A (en) * | 2009-07-07 | 2009-12-16 | 杨立群 | A kind of artificial chest rib |
| CN203379225U (en) * | 2013-07-02 | 2014-01-08 | 珠海稻田医疗科技有限公司 | Artificial rib |
| CN209203628U (en) * | 2017-09-29 | 2019-08-06 | 大连派思益科技有限公司 | A kind of stretchable Artificial Rib of band peek coating |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012162733A1 (en) * | 2011-06-01 | 2012-12-06 | Alfred Health | Bone splint |
-
2017
- 2017-09-29 CN CN201710912090.5A patent/CN107874873B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046278A (en) * | 1989-03-31 | 1990-10-24 | 全苏医学技术科学研究和实验研究院 | The device that restoration of tubular bone missing portion is used |
| CN101534751A (en) * | 2006-09-15 | 2009-09-16 | 先锋外科技术公司 | Joint arthroplasty devices having articulating members |
| CN101601613A (en) * | 2009-07-07 | 2009-12-16 | 杨立群 | A kind of artificial chest rib |
| CN203379225U (en) * | 2013-07-02 | 2014-01-08 | 珠海稻田医疗科技有限公司 | Artificial rib |
| CN209203628U (en) * | 2017-09-29 | 2019-08-06 | 大连派思益科技有限公司 | A kind of stretchable Artificial Rib of band peek coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107874873A (en) | 2018-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230121787A1 (en) | Medical device | |
| US20210113339A1 (en) | Bone implants for correcting bone defects | |
| ES2320313T3 (en) | METHOD OF MANUFACTURE OF A CARDIAC VALVULAR PROTESIS. | |
| KR101682534B1 (en) | Suture for skin lifting or expanding the volume of skin tissue | |
| CN106166083A (en) | Surgical staple and for keeping and implant the apparatus of surgical staple | |
| WO2017028682A1 (en) | Nasal prosthesis and manufacturing method therefor | |
| US20230016711A1 (en) | Covered Stent | |
| CN107874873B (en) | Stretchable artificial rib with peek coating | |
| CN107550603B (en) | Artificial rib | |
| PH12018501309A1 (en) | Left atrial appendage closure device | |
| DE102006055432A1 (en) | Component made of braid elements | |
| CN107582217B (en) | Stretchable artificial rib | |
| CN209203628U (en) | A kind of stretchable Artificial Rib of band peek coating | |
| CN208910585U (en) | A kind of Artificial Rib | |
| CN208910584U (en) | A kind of Artificial Rib connection structure of band peek coating | |
| CN105073044A (en) | Mandibular bone plate | |
| DE20302180U1 (en) | implant | |
| KR101583528B1 (en) | Stacking type prostheses for bone fracture healing | |
| US10646324B2 (en) | Bifurcated stent graft with hemodynamic blood flow dividing wall | |
| CN105030371B (en) | A kind of chin prosthese and its manufacturing method | |
| CN106061435B (en) | Especially for the reconstructed tissue equipment of the nonabsorable of the tissue of such as ligament | |
| US11154409B2 (en) | Device for the exo-prosthetisation of limbs and other percutaneous applications | |
| DE4211346A1 (en) | Socket for hip joint endoprosthesis - has inner shell flange which overlaps outer shell flange which has bosses in a ring which engage holes in inner shell flange | |
| CN117366451A (en) | Three-dimensional gradient negative poisson ratio honeycomb skeleton structure and preparation method and application thereof | |
| RU152664U1 (en) | HEART VALVE PROSTHETIC COMMISSION ASSEMBLY |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231214 Address after: 110000 Faku Economic Development Zone, Shenyang, Liaoning Applicant after: Liaoning Herun New Material Technology Co.,Ltd. Address before: 116000 room 1601, Chenxi Xinghai international building, Heishijiao, Shahekou District, Dalian City, Liaoning Province Applicant before: DALIAN PAISIYI TECHNOLOGY CO.,LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |