CN116747052B - Long section bone prosthesis convenient to installation - Google Patents
Long section bone prosthesis convenient to installation Download PDFInfo
- Publication number
- CN116747052B CN116747052B CN202311055144.2A CN202311055144A CN116747052B CN 116747052 B CN116747052 B CN 116747052B CN 202311055144 A CN202311055144 A CN 202311055144A CN 116747052 B CN116747052 B CN 116747052B
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- China
- Prior art keywords
- limiting device
- prosthesis
- sleeve
- long bone
- bone prosthesis
- 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.)
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 52
- 238000009434 installation Methods 0.000 title description 3
- 210000001519 tissue Anatomy 0.000 claims abstract description 6
- 210000003205 muscle Anatomy 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 8
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 8
- 239000007943 implant Substances 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 2
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 2
- 238000002513 implantation Methods 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010061728 Bone lesion Diseases 0.000 description 1
- 206010065687 Bone loss Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 208000037816 tissue injury Diseases 0.000 description 1
- 230000008733 trauma Effects 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
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Biomedical Technology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The application relates to a long-segment bone prosthesis convenient to install, which can be used for treating bone problems such as fracture, bone defect and the like. The long bone prosthesis comprises a sleeve, a movable screw, a control device and a limiting device. The bottom surface end of the sleeve is provided with a fixing screw, the center of the top surface end is provided with a cylindrical hollow column, the surface of the cylindrical hollow column is provided with a threaded structure, and the outer side wall is provided with a plurality of round holes which correspond to the positions of the limiting device. The surface of the movable screw is provided with a thread structure, the side wall is provided with a non-penetrating hole, and a limiting device is arranged inside the movable screw. The limiting device comprises a spring and a cylinder, and the diameter of the cylinder of the limiting device is smaller than the pitch of the screw thread, so that the limiting device can stretch in the horizontal direction. The control device consists of a cuboid base and a plurality of cylindrical protrusions, can control the position of the limiting device, realizes easier implantation of the long-section bone prosthesis, and reduces damage to surrounding muscles and tissues.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to the field of long-segment bone prosthesis implantation, and aims to provide a technical solution which is easier to implant and reduces surrounding tissue injury in bone replacement surgery.
Background
Long bone prostheses are used to treat bone loss caused by fractures, bone defects, or other skeletal problems. Is usually made of biological materials such as metal, ceramic or polymer, has similar characteristics to human bones, and can be implanted in surgery to replace or strengthen damaged bone parts. This helps to restore normal structure and function to the bone, provides stable support and promotes the natural healing process of the bone. The long bone prosthesis is commonly used for complex fracture repair, bone defect reconstruction, bone reconstruction after tumor resection and the like in surgical operation. These prostheses are often of different shapes and sizes to accommodate the needs of different patients and different sites. Especially when the bone lesion part of a patient is bigger and needs to be entirely resected, the operation difficulty is greatly improved, at present, the peripheral tissues of the patient are often needed to be cut in a large scale in the long-segment bone prosthesis operation, or the implant needs to be installed in a misplaced mode due to the longer prosthesis to damage the tissues such as muscles, blood vessels and nerves of the affected part, so that the postoperative recovery is slow and the risk of complications is increased. Accordingly, there is a need for a new long bone prosthesis design to reduce surgical trauma and improve implantation.
Disclosure of Invention
In order to solve the limitations of the implantation of the existing long-segment bone prosthesis, the application provides a long-segment bone prosthesis which is convenient to install. The long bone prosthesis aims at reducing the operation difficulty, reducing the postoperative risk and protecting the tissues around the affected part of a patient through innovative structure and material selection.
In order to achieve the above purpose, the application provides a long bone prosthesis convenient to install, which comprises a sleeve, a movable screw, a control device and a limiting device, wherein one end of the bottom surface of the sleeve is provided with a fixed screw, one end of the top surface is provided with a cylindrical hollow column, the surface of the hollow column is provided with a thread structure, and a plurality of round holes are arranged on the outer side wall of the sleeve to penetrate through the hollow column; the surface of the movable screw is provided with a thread structure, the side wall of the movable screw is provided with a non-penetrating hole, and a limiting device is arranged in the hole; the limiting device consists of a spring and a cylinder, one end of the spring is connected to the movable screw, and the other end of the spring is connected to the cylinder assembly, so that the limiting device can stretch in the horizontal direction; the control device consists of a cuboid base and a plurality of cylindrical protrusions, and can control the position of the limiting device, so that the long bone prosthesis is easier to implant, and surrounding muscles and tissues of a patient part are less damaged.
Further, the material of the long bone prosthesis may be made of nitinol.
Further, different numbers of round holes can be arranged according to different lengths of the prosthesis required by a patient, and the interval between the round holes can be adjusted to realize smoother movement of the sleeve.
Further, the expansion and contraction range of the limiting device in the horizontal direction can be controlled by adjusting the tension of the spring.
Further, the cylindrical protrusions on the control device correspond to the round holes on the sleeve.
Further, when the upper half part is installed, the length of the upper end of the prosthesis can be adjusted through the control device, and when the lower half part is installed, the sleeve can be separated from the movable screw to move, so that the lower half prosthesis is fixed.
When the long-section bone prosthesis is implanted, the control device is firstly buckled, the movable screw is adjusted to a certain length, then the control device is removed, at the moment, the sleeve and the movable screw are fixed by the limiting device, the sleeve is rotated to enable the prosthesis to be implanted into the upper-section bone, then the control device is sequentially adjusted until the whole movable screw is fixed on the upper-section bone, the control device is removed, the sleeve and the movable screw are separated, and at the moment, the sleeve is reversely rotated, so that the fixing screw is embedded into the lower-section bone. By the device, the length of the long bone prosthesis can be reduced during implantation, the implantation length of the prosthesis can be ensured, and muscle tissues around a patient part can be protected to the greatest extent.
Drawings
The illustrations in the figures and their description aid in the understanding of the application:
FIG. 1 is an assembly view of a long bone prosthesis for ease of installation;
FIG. 2 is a front view of the sleeve;
FIG. 3 is an elevational three side view of the sleeve;
FIG. 4 is a front view of the movable screw and the spacing device;
FIG. 5 is a left side view of the lag screw and stop device;
FIG. 6 is a front view of the control device;
FIG. 7 is an assembly view of a long bone prosthesis;
wherein the above figures include the following reference numerals: 10. a sleeve; 101. a hollow cylinder; 20. a movable screw; 201. a movable screw hole; 30. a limiting device; 301. a spring; 302. a limiting device cylinder; 40. a control device; 401. rectangular base, 402 cylinder protrusion.
Description of the embodiments
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the authorization specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
As shown in fig. 1-7: the long bone prosthesis comprises a sleeve 10, a movable screw 20, a control device 40 and a limiting device 30, wherein one end of the bottom surface of the sleeve is provided with a fixing screw 102 which is used for fixedly connecting with a lower bone, the center of one end of the top surface is provided with a cylindrical hollow column 101 for placing the movable screw 20, the surface of the hollow column is provided with a thread structure, and a plurality of round holes penetrating through the hollow column 103 are formed in the outer side wall of the sleeve; the surface of the movable screw is provided with a thread structure, the side wall of the movable screw is provided with a non-penetrating hole 201, and a limiting device is arranged in the hole; the limiting device consists of a spring 301 and a cylinder 302, wherein one end of the spring is connected to the movable screw, and the other end of the spring is connected with the cylinder component, so that the limiting device can stretch in the horizontal direction; the control device consists of a cuboid base 401 and a plurality of cylindrical protrusions 402, and the control device can adjust the limiting device to move in the horizontal direction. When the device is used, in order to reduce the length of a long bone and facilitate implantation, the control device can be inserted, the limiting device is retracted into the movable screw, the movable screw is firstly adjusted to be a small section, then the control device is removed, the limiting device is extended into a hole of the sleeve, the movable screw and the sleeve are fixed, then the sleeve is rotated to enable the exposed movable screw to be fixed into the bone, then the control device is inserted, the limiting device is retracted into the movable screw, at the moment, the sleeve and the movable screw can relatively move, the sleeve is rotated downwards, the movable screw is enabled to be exposed to be longer, then the control device is removed, the limiting device is extended into the hole of the sleeve, the movable screw and the sleeve are fixed, and the sleeve is rotated to enable the exposed movable screw to be fixed into the bone. By continuously implementing the steps, the movable screw can be completely implanted into the human skeleton, at the moment, the control device is inserted again, the sleeve is rotated downwards to enable the fixing screw below the sleeve to rotate into the human skeleton, and finally the control device is removed, so that the whole prosthesis implantation is completed.
The material of the long bone prosthesis can be made of nickel-titanium alloy, and has the advantages that when the material is not implanted into a human body, the temperature is lower relative to the body temperature, the nickel-titanium alloy is in a martensitic phase state, the hardness of the long bone prosthesis is larger and the volume is relatively smaller, when the material is implanted into the human body, the temperature is increased, the nickel-titanium alloy is in an austenitic phase, the hardness of the long bone prosthesis is reduced, the volume is increased, the material is convenient for installing the prosthesis, the prosthesis has toughness as the skeleton of the human body after the material is implanted, the phase transition temperature of the nickel-titanium alloy can be changed by changing the proportion of the nickel-titanium alloy, the prosthesis is subjected to phase transition at the temperature of the human body, and the expansion rate of the nickel-titanium alloy can be controlled to adapt to the toughness of the skeleton of the human body, so that the long bone prosthesis is firmly fixed.
Claims (7)
1. A long bone prosthesis convenient to install, characterized in that: the device comprises a sleeve (10), a movable screw (20), a control device (40) and a limiting device (30), wherein one end of the bottom surface of the sleeve is provided with a fixed screw (102), the center of one end of the top surface is provided with a cylindrical hollow column (101), the surface of the hollow column is provided with a thread structure, a plurality of round holes (103) are formed in the outer side wall of the sleeve and penetrate through the hollow column, and the setting positions of the round holes correspond to the limiting device; the surface of the movable screw (20) is provided with a thread structure, the side wall of the movable screw is provided with a non-penetrating hole (201), and a limiting device (30) is arranged in the hole; the limiting device consists of a spring (301) and a cylinder assembly (302), one end of the spring is connected to the movable screw (20), the other end of the spring is connected to the cylinder assembly (302), and the diameter of the cylinder assembly of the limiting device is smaller than the pitch of the screw thread, so that the limiting device can stretch in the horizontal direction; the control device (40) consists of a cuboid base (401) and a plurality of cylindrical bulges (402), and can control the position of the limiting device, so that the long bone prosthesis is easier to implant, and the muscles and tissues around the affected part are less damaged.
2. The long bone prosthesis of claim 1, wherein: the material of the long bone prosthesis may be made of nitinol.
3. The long bone prosthesis of claim 1, wherein: the sleeve can be provided with different numbers of round holes (103) according to the different lengths of the prosthesis required by the patient, and the interval between the round holes can be adjusted to realize smoother movement of the sleeve.
4. The long bone prosthesis of claim 1, wherein: the expansion and contraction range of the limiting device in the horizontal direction can be controlled by adjusting the tension of the spring.
5. The long bone prosthesis of claim 1, wherein: the cylindrical bulge (402) on the control device corresponds to the round hole (103) on the sleeve.
6. The long bone prosthesis of claim 1, wherein: when the upper half prosthesis is installed, the length of the upper end of the prosthesis can be adjusted through the control device, and when the lower half prosthesis is installed, the sleeve can be separated from the movable screw to move, so that the lower half prosthesis is fixed.
7. The easy-to-install long bone prosthesis according to claim 1 or claim 2, wherein the thread structure of the movable screw (20) is effective to cooperate with the thread structure of the cylindrical hollow post (101) in the sleeve to achieve adjustable position and stable fixation of the long bone prosthesis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311055144.2A CN116747052B (en) | 2023-08-22 | 2023-08-22 | Long section bone prosthesis convenient to installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311055144.2A CN116747052B (en) | 2023-08-22 | 2023-08-22 | Long section bone prosthesis convenient to installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116747052A CN116747052A (en) | 2023-09-15 |
| CN116747052B true CN116747052B (en) | 2023-10-27 |
Family
ID=87950125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311055144.2A Active CN116747052B (en) | 2023-08-22 | 2023-08-22 | Long section bone prosthesis convenient to installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116747052B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584841A (en) * | 2019-09-30 | 2019-12-20 | 北京爱康宜诚医疗器材有限公司 | Extendable prosthesis |
| CN110584842A (en) * | 2019-09-30 | 2019-12-20 | 北京爱康宜诚医疗器材有限公司 | Extendable prosthesis |
| CN217091032U (en) * | 2021-11-16 | 2022-08-02 | 北京大学人民医院 | Minimally invasive extendable artificial prosthesis |
| CN218279887U (en) * | 2022-06-28 | 2023-01-13 | 北京市春立正达医疗器械股份有限公司 | Bionic type extendable prosthesis |
| CN115813614A (en) * | 2023-02-20 | 2023-03-21 | 北京爱康宜诚医疗器材有限公司 | Long bone diaphysis prosthesis assembly |
| CN116035774A (en) * | 2023-03-07 | 2023-05-02 | 北京爱康宜诚医疗器材有限公司 | Long bone prosthesis |
| CN219000731U (en) * | 2023-03-07 | 2023-05-12 | 北京爱康宜诚医疗器材有限公司 | Extensible prosthesis |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663670B2 (en) * | 2002-01-18 | 2003-12-16 | Depuy Orthopaedics, Inc. | Adjustable long bone prosthesis |
-
2023
- 2023-08-22 CN CN202311055144.2A patent/CN116747052B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584841A (en) * | 2019-09-30 | 2019-12-20 | 北京爱康宜诚医疗器材有限公司 | Extendable prosthesis |
| CN110584842A (en) * | 2019-09-30 | 2019-12-20 | 北京爱康宜诚医疗器材有限公司 | Extendable prosthesis |
| CN217091032U (en) * | 2021-11-16 | 2022-08-02 | 北京大学人民医院 | Minimally invasive extendable artificial prosthesis |
| CN218279887U (en) * | 2022-06-28 | 2023-01-13 | 北京市春立正达医疗器械股份有限公司 | Bionic type extendable prosthesis |
| CN115813614A (en) * | 2023-02-20 | 2023-03-21 | 北京爱康宜诚医疗器材有限公司 | Long bone diaphysis prosthesis assembly |
| CN116035774A (en) * | 2023-03-07 | 2023-05-02 | 北京爱康宜诚医疗器材有限公司 | Long bone prosthesis |
| CN219000731U (en) * | 2023-03-07 | 2023-05-12 | 北京爱康宜诚医疗器材有限公司 | Extensible prosthesis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116747052A (en) | 2023-09-15 |
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