CN100518692C - Artificial hip joint femur-end artificial body - Google Patents
Artificial hip joint femur-end artificial body Download PDFInfo
- Publication number
- CN100518692C CN100518692C CNB2007100570255A CN200710057025A CN100518692C CN 100518692 C CN100518692 C CN 100518692C CN B2007100570255 A CNB2007100570255 A CN B2007100570255A CN 200710057025 A CN200710057025 A CN 200710057025A CN 100518692 C CN100518692 C CN 100518692C
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- neck
- femur
- full
- hollow half
- handle
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Abstract
The present invention discloses a kind of artificial hip-joint femur end prosthesis. It includes the following several portions: head ball, femoral neck whole body, femoral marrow cavity hollow half-stalk and femoral neck inner side short stalk. Said invention also provides the mounting mode of above-mentioned every portion and connection mode of all the above-mentioned portions.
Description
Technical field
The invention belongs to medical instruments field, particularly relate to a kind of artificial hip joint femur-end artificial body that is used for hip replacement.
Background technology
The artificial hip joint femur-end artificial body of using clinically mainly is divided into two types at present, and a class is that the handle prosthese is arranged, and a class is the stockless prosthese.
Having the handle prosthese to be divided into again has the neck prosthese and does not have the neck prosthese.Wherein there is the neck of neck prosthese to be confined to the medial femoral distance, advantage is that the prosthese neck can be kept the inboard original biomechanical characterization of femur, reduce bone loss, shortcoming is to recover the biomechanical characterization of femur fully, and the influence that the prosthese neck is certain to the stressed existence of prosthese handle causes prosthetic loosening easily; There is not the neck prosthese and is the frictional force that the extruding force of utilizing the prosthese handle strengthens prosthese handle and femur inboard cortex, thereby reach the purpose of stablizing prosthese, advantage is to reduce the prosthetic loosening rate, but shortcoming is the biomechanical characterization that has thoroughly changed femur, and the result can cause more serious bone loss.More options do not have the neck prosthese clinically at present, and reason is that it has lower prosthetic loosening rate.
Though the design of stockless prosthese meets the biomechanical characterization of femur, the effectiveness of clinical practice also can not get certainly, and reason is that prosthese reliability of fixation and long-time stability also do not obtain confirming.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of biomechanical characterization that can keep original femur, prosthese can be combined together with femur more fully, thereby can strengthen prosthesis stability and reduce the loosening rate of prosthese and the bone loss of human body, therefore the artificial hip joint femur-end artificial body that can increase the service life.
In order to achieve the above object, artificial hip joint femur-end artificial body provided by the invention comprises the inboard short handle of head shoot, full thighbone neck, hollow half handle of femoral bone cavitas medullaris and neck of femur; Wherein head shoot and be installed in the upper end of full thighbone neck in friction tight mode; The both sides, bottom of full thighbone neck connect and are formed with a plurality of full neck fixing holes; Hollow half handle of femoral bone cavitas medullaris is the uiform section tubulose, and its upper end is connected middle side part outside the bottom surface of full thighbone neck, and the angle between its main body and full thighbone neck bottom surface is an acute angle; The inboard short handle of neck of femur is then to be arranged on the bottom surface middle inside of full thighbone neck with the be separated by mode of spacing of hollow half handle of femoral bone cavitas medullaris.
Perforation is formed with a plurality of hollow half handle body openings on the sidewall of hollow half handle of described femoral bone cavitas medullaris, is beneficial to growing into of spongy bone like this, thereby spongy bone can be combined together with the inside and outside wall of hollow half handle of femoral bone cavitas medullaris.
The lower end of hollow half handle of described femoral bone cavitas medullaris is formed with a plurality of sharp swords, be convenient to it like this and insert in the spongy bone, thereby minimizing is to the destruction of spongy bone.
The lower end of the inboard short handle of described neck of femur is pointed, and its lateral surface parallels with the axis of hollow half handle of femoral bone cavitas medullaris, to reduce the influence to the spongy bone arrangement as far as possible.
Inboard short handle of described neck of femur and hollow half handle of femoral bone cavitas medullaris and full thighbone neck are formed as one.
Artificial hip joint femur-end artificial body provided by the invention can utilize the method that fixture runs through full neck fixing hole that whole prosthese is securely fixed on the femur with its implant into body femur the time, thereby can improve prosthesis stability.In addition, after prosthese is implanted, the medial surface of the inboard short handle of the neck of femur on it can abut against on the bigelow's septum, therefore can prevent to move in the prosthese, the lateral surface of the inboard short handle of neck of femur parallels with the axis of hollow half handle of femoral bone cavitas medullaris then can reduce the influence that spongy bone is arranged, not only can prolong the service life of prosthese like this and reduce revision rate, and prosthese more meets the original biomechanical characterization of femur with being connected of femur, so can reduce the bone loss of near end of thighbone.
Description of drawings
Fig. 1 is an artificial hip joint femur-end artificial body forward partial structurtes cutaway view provided by the invention.
Fig. 2 is an artificial hip joint femur-end artificial body side direction partial structurtes cutaway view provided by the invention.
Fig. 3 is an artificial hip joint femur-end artificial body structure upward view provided by the invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments artificial hip joint femur-end artificial body provided by the invention is elaborated.As Fig. 1～shown in Figure 3, artificial hip joint femur-end artificial body provided by the invention comprises the inboard short handle 4 of head shoot 1, full thighbone neck 2, hollow half handle 3 of femoral bone cavitas medullaris and neck of femur; Wherein head shoot and 1 be installed in the upper end of full thighbone neck 2 in friction tight mode; The both sides, bottom of full thighbone neck 2 connect and are formed with a plurality of full neck fixing holes 5; Hollow half handle 3 of femoral bone cavitas medullaris is the uiform section tubulose, and its upper end is connected middle side part outside the bottom surface of full thighbone neck 2, and the angle between its main body and full thighbone neck 2 bottom surfaces is an acute angle; The inboard short handle 4 of neck of femur is then to be arranged on the bottom surface middle inside of full thighbone neck 2 with the be separated by mode of spacing of hollow half handle 3 of femoral bone cavitas medullaris.
Perforation is formed with a plurality of hollow half handle body openings 6 on the sidewall of hollow half handle 3 of described femoral bone cavitas medullaris, is beneficial to growing into of spongy bone like this, thereby spongy bone can be combined together with the inside and outside wall of hollow half handle 3 of femoral bone cavitas medullaris.
The lower end of hollow half handle 3 of described femoral bone cavitas medullaris is formed with a plurality of sharp swords, be convenient to it like this and insert in the spongy bone, thereby minimizing is to the destruction of spongy bone.
The lower end of the inboard short handle 4 of described neck of femur is pointed, and its lateral surface parallels with the axis of hollow half handle 3 of femoral bone cavitas medullaris, to reduce the influence to the spongy bone arrangement as far as possible.
The inboard short handle 4 of described neck of femur is formed as one with hollow half handle 3 of femoral bone cavitas medullaris and full thighbone neck 2.
When the doctor need implant artificial hip joint femur-end artificial body provided by the invention in patient's the femur, at first hollow half handle 3 of the femoral bone cavitas medullaris on it is inserted in the pulp cavity of femur, and the medial surface of the inboard short handle 4 of neck of femur is abutted against on the bigelow's septum, utilize the method that not shown fixture runs through full neck fixing hole 5 that hollow half handle 3 of femoral bone cavitas medullaris and full thighbone neck 2 are securely fixed on the femur then, whole implantation process can be finished in 1 upper end that is installed in full thighbone neck 2 in friction tight mode of will head shooting at last.
The above only is one embodiment of the present of invention, be not that shape of the present invention, material and structure are done any pro forma restriction, every foundation technical spirit of the present invention all belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1, a kind of artificial hip joint femur-end artificial body is characterized in that: described artificial hip joint femur-end artificial body comprises the inboard short handle (4) of head shoot (1), full thighbone neck (2), hollow half handle of femoral bone cavitas medullaris (3) and neck of femur; Wherein head shoot (1) is installed in the upper end of full thighbone neck (2) in friction tight mode; The both sides, bottom of full thighbone neck (2) connect and are formed with a plurality of full neck fixing holes (5); Hollow half handle of femoral bone cavitas medullaris (3) is the uiform section tubulose, and its upper end is connected middle side part outside the bottom surface of full thighbone neck (2), and the angle between its main body and full thighbone neck (2) bottom surface is an acute angle; The inboard short handle of neck of femur (4) is then to be arranged on the bottom surface middle inside of full thighbone neck (2) with the be separated by mode of spacing of hollow half handle of femoral bone cavitas medullaris (3).
2, artificial hip joint femur-end artificial body according to claim 1, it is characterized in that: perforation is formed with a plurality of hollow half handle body openings (6) on the sidewall of hollow half handle of described femoral bone cavitas medullaris (3), be beneficial to growing into of spongy bone like this, thereby spongy bone can be combined together with the inside and outside wall of hollow half handle of femoral bone cavitas medullaris (3).
3, artificial hip joint femur-end artificial body according to claim 1 is characterized in that: the lower end of hollow half handle of described femoral bone cavitas medullaris (3) is formed with a plurality of sharp swords, be convenient to it like this and insert in the spongy bone, thereby minimizing is to the destruction of spongy bone.
4, artificial hip joint femur-end artificial body according to claim 1, it is characterized in that: the lower end of the inboard short handle of described neck of femur (4) is pointed, and its lateral surface parallels with the axis of hollow half handle of femoral bone cavitas medullaris (3), to reduce the influence that spongy bone is arranged as far as possible.
5, artificial hip joint femur-end artificial body according to claim 1 is characterized in that: the inboard short handle of described neck of femur (4) is formed as one with hollow half handle of femoral bone cavitas medullaris (3) and full thighbone neck (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100570255A CN100518692C (en) | 2007-03-28 | 2007-03-28 | Artificial hip joint femur-end artificial body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100570255A CN100518692C (en) | 2007-03-28 | 2007-03-28 | Artificial hip joint femur-end artificial body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101023892A CN101023892A (en) | 2007-08-29 |
| CN100518692C true CN100518692C (en) | 2009-07-29 |
Family
ID=38742748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100570255A Expired - Fee Related CN100518692C (en) | 2007-03-28 | 2007-03-28 | Artificial hip joint femur-end artificial body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100518692C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188298A (en) * | 2011-07-13 | 2011-09-21 | 张前法 | Biotype femoral head surface substitutive prosthesis |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3781917A (en) * | 1970-10-13 | 1974-01-01 | R Mathys | Hip joint prosthesis |
-
2007
- 2007-03-28 CN CNB2007100570255A patent/CN100518692C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3781917A (en) * | 1970-10-13 | 1974-01-01 | R Mathys | Hip joint prosthesis |
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| Publication number | Publication date |
|---|---|
| CN101023892A (en) | 2007-08-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20130328 |