CN116327458A - Finger joint prosthesis powered by autologous bone tendon - Google Patents
Finger joint prosthesis powered by autologous bone tendon Download PDFInfo
- Publication number
- CN116327458A CN116327458A CN202310627809.6A CN202310627809A CN116327458A CN 116327458 A CN116327458 A CN 116327458A CN 202310627809 A CN202310627809 A CN 202310627809A CN 116327458 A CN116327458 A CN 116327458A
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- prosthesis
- phalangeal
- metacarpal
- bone
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- 210000002435 tendon Anatomy 0.000 title claims abstract description 45
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 42
- 210000001145 finger joint Anatomy 0.000 title claims abstract description 18
- 210000000236 metacarpal bone Anatomy 0.000 claims abstract description 13
- 239000004698 Polyethylene Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 210000003371 toe Anatomy 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 206010057178 Osteoarthropathies Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002683 hand surgery Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000002406 microsurgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
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
- A61F2/50—Prostheses not implantable in the body
- A61F2/54—Artificial arms or hands or parts thereof
- A61F2/58—Elbows; Wrists ; Other joints; Hands
- A61F2/583—Hands; Wrist joints
- A61F2/586—Fingers
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5016—Prostheses not implantable in the body adjustable
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5016—Prostheses not implantable in the body adjustable
- A61F2002/5036—Prostheses not implantable in the body adjustable self-adjustable, e.g. self-learning
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5038—Hinged joint, e.g. with transverse axle restricting the movement
- A61F2002/5039—Hinged joint, e.g. with transverse axle restricting the movement allowing only for single rotation
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5093—Tendon- or ligament-replacing cables
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (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 invention provides a finger joint prosthesis powered by autologous bone tendons, and relates to the technical field of medical appliances. The finger joint prosthesis powered by autologous bone tendons comprises a finger bone side prosthesis and a metacarpal side prosthesis; the phalangeal side prosthesis and the metacarpal side prosthesis are pivoted; the phalangeal side prosthesis is provided with a containing through groove for placing the phalanges of the toes, and the containing through groove penetrates through the palm side and the back side of the phalangeal side prosthesis; grooves for placing tendons are formed in the palm side and the back side of the metacarpal bone side prosthesis. The technical effects of good joint mobility and low operation technical difficulty requirement are achieved.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a finger joint prosthesis for providing power for autologous bone tendons.
Background
In clinical diagnosis and treatment of hand surgery, it is often seen that the normal functions of the hands are affected by the lesions or deletions of the interphalangeal joints of the fingers caused by orthopedic diseases or trauma. In the past, for severe finger osteoarthropathy or joint loss, bone grafting fusion can be performed to sacrifice finger mobility to ensure the basic function of the finger, or to perform autologous interphalangeal joint or artificial interphalangeal joint transplantation. Although the basic functions of the fingers are preserved, the function of the hand, such as loose grip, flexibility and reduced accuracy, is greatly reduced. Although the joint between the toes of the autologous toe can restore a certain degree of joint movement, the method has the defects of high technical requirements on microsurgery of operators, large cutting range and the like.
Disclosure of Invention
The invention aims to provide a finger joint prosthesis powered by autologous bone tendons, so as to solve the technical problems of poor joint mobility or high operation technical difficulty requirements in the prior art.
In a first aspect, embodiments of the present invention provide a finger joint prosthesis powered by autologous bone tendons, including a phalangeal prosthesis and a metacarpal prosthesis;
the phalangeal side prosthesis and the metacarpal side prosthesis are pivoted;
the phalangeal side prosthesis is provided with a containing through groove for placing the phalanges of the toes, and the containing through groove penetrates through the palm side and the back side of the phalangeal side prosthesis;
grooves for placing tendons are formed in the palm side and the back side of the metacarpal bone side prosthesis.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where at least one limiting cross rod is disposed at a notch of the groove, and a length direction of the limiting cross rod is perpendicular to an extending direction of the groove.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, where the limiting rail is in a circular arc shape.
With reference to the first aspect, the embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the phalangeal side prosthesis includes a phalangeal fixation rod and a phalangeal prosthesis;
the phalangeal fixing rod is fixedly arranged at one end of the phalangeal prosthesis, and a first pivot seat used for being pivoted with the metacarpal prosthesis is arranged at the other end of the phalangeal prosthesis;
the accommodating through groove is formed in the phalangeal prosthesis.
With reference to the first aspect, the embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the phalangeal prosthesis is provided with a plurality of fixing holes for installing a k-wire, and the fixing holes penetrate through two sides of the accommodating through groove from the side of the accommodating through groove.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a surface of the phalangeal fixation rod is a micropore structure.
With reference to the first aspect, the present embodiment provides a possible implementation manner of the first aspect, wherein the metacarpal side prosthesis includes a metacarpal fixing rod and a metacarpal prosthesis;
the metacarpal bone fixing rod is fixedly arranged at one end of the metacarpal bone prosthesis, and a second pivot seat used for being pivoted with the finger bone side prosthesis is arranged at the other end of the metacarpal bone prosthesis;
the grooves are formed in the palm side and the back side of the metacarpal prosthesis.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a rotation angle limiting block is disposed at an end of the second pivoting seat, which is away from the metacarpal prosthesis, and a rotation angle limiting groove is disposed at an end of the phalangeal prosthesis, which is away from the phalangeal fixation rod.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a surface of the metacarpal fixing rod is a micropore structure.
With reference to the first aspect, the embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the phalangeal side prosthesis and the metacarpal side prosthesis are both pivoted by a pin shaft, and a polyethylene bushing is sleeved on the pin shaft.
The beneficial effects are that:
the invention provides a finger joint prosthesis powered by autologous bone tendons, comprising a finger bone side prosthesis and a metacarpal side prosthesis; the phalangeal side prosthesis and the metacarpal side prosthesis are pivoted; the phalangeal side prosthesis is provided with a containing through groove for placing the phalanges of the toes, and the containing through groove penetrates through the palm side and the back side of the phalangeal side prosthesis; grooves for placing tendons are formed in the palm side and the back side of the metacarpal bone side prosthesis.
Specifically, in the operation process, the phalanges and the extensor tendons attached to the phalanges of the bases of the second toes of the patient are transplanted to the finger joint prosthesis powered by the autologous phalanges, specifically, the autologous phalanges are placed into the accommodating through grooves of the finger bone side prosthesis and fixed from the sides of the accommodating through grooves by the Kirschner wire, then the flexor tendons and the extensor tendons on the phalanges respectively pass through grooves below (palmar side) and above (dorsal side) of the metacarpal bone side prosthesis, and then the flexor tendons and the extensor tendons are sutured with the residual extensor tendons of the finger bone, so that the function of the bending and stretching movement of the affected finger is recovered after operation, and through the arrangement, the finger joint movement of the patient can be completed normally or nearly normally, and the finger bone of the patient is fixed in the accommodating through grooves of the finger bone side prosthesis, so that the operation difficulty can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic, metacarpal side view of a finger joint prosthesis powered by autologous bone tendons provided by an embodiment of the present invention;
FIG. 2 is a schematic dorsal view of a finger joint prosthesis powered by autologous bone tendons according to embodiments of the present invention;
FIG. 3 is a schematic illustration of a phalangeal side prosthesis in a phalangeal joint prosthesis powered by autologous bone tendons provided in an embodiment of the present invention;
fig. 4 is a schematic view of a metacarpal side prosthesis in a finger joint prosthesis powered by autologous bone tendons provided in an embodiment of the present invention.
Icon:
100-phalangeal side prosthesis; 101-accommodating through grooves; 110-phalangeal fixation rod; 120-phalangeal prosthesis; 130-fixing holes; 140-a first pivot mount; 150-a rotation angle limiting groove;
200-metacarpal side prosthesis; 201-a trench; 202-limiting cross bars; 210-metacarpal fixation rod; 220-metacarpal prosthesis; 230-a second pivot mount; 240-rotation angle limiting block.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.
Referring to fig. 1, 2, 3 and 4, embodiments of the present invention provide a finger joint prosthesis powered by autologous bone tendons, including a phalangeal side prosthesis 100 and a metacarpal side prosthesis 200; both the phalangeal prosthesis 100 and the metacarpal prosthesis 200 are pivotally connected; the phalangeal side prosthesis 100 is provided with a containing through groove 101 for placing the phalanges of the digits, and the containing through groove 101 penetrates through the palm side and the back side of the phalangeal side prosthesis 100; both the volar and dorsal sides of the metacarpal prosthesis 200 are provided with grooves 201 for placement of tendons.
Specifically, during the operation, the phalanges and the extensor tendons attached to the phalanges are transplanted to the autogenous bone tendon-providing power finger joint prosthesis provided by the embodiment, specifically, the autogenous phalanges are placed into the accommodating through groove 101 of the phalangeal side prosthesis 100 and fixed from the side of the accommodating through groove by the Kirschner wire, then the flexor tendons and the extensor tendons on the phalanges are respectively penetrated from the grooves 201 below (palmar side) and above (dorsal side) of the metacarpal side prosthesis 200, and then the flexor tendons and the extensor tendons are sutured with the extensor tendons remaining after operation, so that the function of the affected finger joint of the patient can be recovered after the postoperative braking and functional exercise, and through such arrangement, the normal or near normal flexor movement of the finger joint of the patient can be completed, and the bones of the patient themselves are fixed in the accommodating through groove 101 of the phalangeal side prosthesis 100, so that the operation difficulty can be reduced.
Referring to fig. 1 to fig. 4, at least one limiting cross bar 202 is disposed at a notch of the groove 201, and a length direction of the limiting cross bar 202 is perpendicular to an extending direction of the groove 201, so that the limiting cross bar 202 can ensure that the flexor tendon is still located in the groove 201 when the flexor tendon is active, and the flexor tendon is prevented from contracting and separating from the groove 201.
The limiting cross bar 202 is in a circular arc shape, the circular arc limiting cross bar 202 can limit the movement of the extensor tendon, the extensor tendon is prevented from being separated from the groove 201, and the circular arc limiting cross bar cannot damage the extensor tendon.
Referring to fig. 1-4, wherein a phalangeal-side prosthesis 100 includes a phalangeal fixation rod 110 and a phalangeal prosthesis 120; the phalangeal fixation rod 110 is fixedly arranged at one end of the phalangeal prosthesis 120, and the other end of the phalangeal prosthesis 120 is provided with a first pivot seat 140 for pivoting with the metacarpal side prosthesis 200; the receiving channel 101 is formed in the phalangeal prosthesis 120.
Referring to fig. 1 to 4, in an alternative embodiment of the present invention, the phalangeal prosthesis 120 is provided with a plurality of fixing holes 130 for mounting the k-wire, and the fixing holes 130 penetrate through both sides of the receiving through-slot 101 from the side of the Rong Natong slot 101.
Specifically, the phalangeal prosthesis 120 is provided with a fixing hole 130, and after the phalanges of the patient are placed in the receiving through-groove 101, the medical staff nails the k-wire into the fixing hole 130, thereby fixing the phalanges.
Wherein, the surface of the phalangeal fixation rod 110 has a microporous structure, which is beneficial to bone ingrowth, so that the phalangeal fixation rod 110 is connected with the phalangeal bone of the patient stably.
Referring to fig. 1-4, in an alternative version of the present embodiment, a metacarpal side prosthesis 200 includes a metacarpal fixation rod 210 and a metacarpal prosthesis 220; the metacarpal fixing rod 210 is fixedly disposed at one end of the metacarpal prosthesis 220, and the other end of the metacarpal prosthesis 220 is provided with a second pivot seat 230 for pivoting with the phalangeal prosthesis 100; the grooves 201 are open on the volar and dorsal sides of the metacarpal prosthesis 220.
Referring to fig. 1-4, a rotation angle limiting block 240 is disposed at an end of the second pivot seat 230 facing away from the metacarpal bone prosthesis 220, and a rotation angle limiting groove 150 is disposed at an end of the phalangeal bone prosthesis 120 facing away from the phalangeal bone fixing rod 110.
Specifically, the rotation angles of the metacarpal prosthesis 220 and the phalangeal prosthesis 120 can be limited by the arrangement of the rotation angle limiting block 240 and the rotation angle limiting groove 150, so that the phalangeal prosthesis 120 is prevented from being excessively extended.
The surface of the metacarpal bar 210 has a microporous structure, which is beneficial to bone ingrowth, so that the metacarpal bar 210 can be connected with the metacarpal bones of the patient stably.
In an alternative of this embodiment, both the phalangeal prosthesis 100 and the metacarpal prosthesis 200 are pivotally connected by a pin shaft, and a polyethylene bushing is sleeved on the pin shaft.
Specifically, the polyethylene bushing is sleeved on the pin shaft, so that friction between the pin shaft and the pin joint seat can be reduced, abrasion is reduced, and the service life of the knuckle prosthesis powered by the autologous bone tendon is prolonged.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; 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 with equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present invention.
Claims (10)
1. A finger joint prosthesis powered by autologous bone tendons, comprising: a phalangeal prosthesis (100) and a metacarpal prosthesis (200);
-both the phalangeal prosthesis (100) and the metacarpal prosthesis (200) are pivoted;
the phalangeal side prosthesis (100) is provided with a containing through groove (101) for placing the phalanges of the digits, and the containing through groove (101) penetrates through the palm side and the back side of the phalangeal side prosthesis (100);
grooves (201) for placing tendons are formed in the palm side and the back side of the metacarpal side prosthesis (200).
2. The autogenous bone tendon powered knuckle prosthesis of claim 1, wherein at least one spacing rail (202) is provided at the notch of the groove (201), the length direction of the spacing rail (202) being perpendicular to the direction of extension of the groove (201).
3. The autogenous bone tendon powered knuckle prosthesis of claim 2, wherein the stop bar (202) is circular arc shaped.
4. The autogenous bone tendon powered knuckle prosthesis of claim 1, wherein the phalangeal side prosthesis (100) includes a phalangeal fixation rod (110) and a phalangeal prosthesis (120);
the phalangeal fixing rod (110) is fixedly arranged at one end of the phalangeal prosthesis (120), and a first pivot seat (140) used for being pivoted with the metacarpal prosthesis (200) is arranged at the other end of the phalangeal prosthesis (120);
the accommodating through groove (101) is formed on the phalangeal prosthesis (120).
5. The autogenous bone tendon powered knuckle prosthesis of claim 4, wherein a plurality of fixing holes (130) for mounting a k-wire are formed in the knuckle prosthesis (120), and the fixing holes (130) penetrate through both sides of the accommodating through groove (101) from the lateral sides of the accommodating through groove (101).
6. The autogenous bone tendon-powered knuckle prosthesis of claim 4, wherein the surface of the phalangeal fixation rod (110) is of a microporous structure.
7. The autogenous bone tendon powered knuckle prosthesis of claim 4, wherein the metacarpal side prosthesis (200) comprises a metacarpal fixation rod (210) and a metacarpal prosthesis (220);
the metacarpal bone fixing rod (210) is fixedly arranged at one end of the metacarpal bone prosthesis (220), and a second pivot seat (230) used for being pivoted with the phalangeal bone side prosthesis (100) is arranged at the other end of the metacarpal bone prosthesis (220);
the grooves (201) are open on the volar and dorsal sides of the metacarpal prosthesis (220).
8. The autogenous bone tendon powered knuckle prosthesis of claim 7, wherein a rotation angle limiting block (240) is provided at an end of the second pivot seat (230) facing away from the metacarpal bone prosthesis (220), and a rotation angle limiting groove (150) is provided at an end of the phalangeal bone prosthesis (120) facing away from the phalangeal bone fixation rod (110).
9. The autogenous bone tendon-powered knuckle prosthesis of claim 7, wherein the surface of the metacarpal bar (210) is of a microporous structure.
10. The autogenous bone tendon powered knuckle prosthesis of any one of claims 1-9, characterized in that both the knuckle-side prosthesis (100) and the metacarpal-side prosthesis (200) are pivotally connected by a pin, and the pin is sleeved with a polyethylene bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310627809.6A CN116327458B (en) | 2023-05-31 | 2023-05-31 | Finger joint prosthesis powered by autologous bone tendon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310627809.6A CN116327458B (en) | 2023-05-31 | 2023-05-31 | Finger joint prosthesis powered by autologous bone tendon |
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| Publication Number | Publication Date |
|---|---|
| CN116327458A true CN116327458A (en) | 2023-06-27 |
| CN116327458B CN116327458B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310627809.6A Active CN116327458B (en) | 2023-05-31 | 2023-05-31 | Finger joint prosthesis powered by autologous bone tendon |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120186383A1 (en) * | 2009-09-22 | 2012-07-26 | University Research And Development Company, Ltd | Orientation Controller, Mechanical Arm, Gripper and Components Thereof |
| CN204618490U (en) * | 2015-01-30 | 2015-09-09 | 中国人民解放军总医院 | Magnetic-type artificial vacation refers to |
| CN106726027A (en) * | 2016-02-24 | 2017-05-31 | 吉林大学 | A kind of drive lacking prosthetic hand |
| US20170224499A1 (en) * | 2016-02-10 | 2017-08-10 | National University Of Ireland, Galway | Implant for a bone joint |
| CN210277417U (en) * | 2019-01-29 | 2020-04-10 | 深圳市恒塔医疗器械有限公司 | Multifunctional grasping hand |
| US20200330246A1 (en) * | 2013-01-16 | 2020-10-22 | Alessandro Tognetti | Prosthetic hand system |
-
2023
- 2023-05-31 CN CN202310627809.6A patent/CN116327458B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120186383A1 (en) * | 2009-09-22 | 2012-07-26 | University Research And Development Company, Ltd | Orientation Controller, Mechanical Arm, Gripper and Components Thereof |
| US20200330246A1 (en) * | 2013-01-16 | 2020-10-22 | Alessandro Tognetti | Prosthetic hand system |
| CN204618490U (en) * | 2015-01-30 | 2015-09-09 | 中国人民解放军总医院 | Magnetic-type artificial vacation refers to |
| US20170224499A1 (en) * | 2016-02-10 | 2017-08-10 | National University Of Ireland, Galway | Implant for a bone joint |
| CN106726027A (en) * | 2016-02-24 | 2017-05-31 | 吉林大学 | A kind of drive lacking prosthetic hand |
| CN210277417U (en) * | 2019-01-29 | 2020-04-10 | 深圳市恒塔医疗器械有限公司 | Multifunctional grasping hand |
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| Publication number | Publication date |
|---|---|
| CN116327458B (en) | 2023-07-28 |
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