CN202776637U - Modified artificial hip joint prosthetic shank - Google Patents
Modified artificial hip joint prosthetic shank Download PDFInfo
- Publication number
- CN202776637U CN202776637U CN 201220382142 CN201220382142U CN202776637U CN 202776637 U CN202776637 U CN 202776637U CN 201220382142 CN201220382142 CN 201220382142 CN 201220382142 U CN201220382142 U CN 201220382142U CN 202776637 U CN202776637 U CN 202776637U
- Authority
- CN
- China
- Prior art keywords
- groove
- shank
- artificial hip
- hip joint
- handle
- 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.)
- Expired - Fee Related
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
Landscapes
- Prostheses (AREA)
Abstract
The utility model relates to a modified artificial hip joint prosthetic shank. The modified artificial hip joint prosthetic shank is provided with a neck taper port, a shank neck and a shank body, wherein the side face of the shank body is provided with at least one groove with the depth of 1 millimeter to 3 millimeters, the groove extends from the upper end of the shank body to the lower end of the shank body, the groove accords with the shank body in shape, and the width of the groove is the same from top to bottom. The modified artificial hip joint prosthetic shank has the advantages that the groove can ensure that the air, blood and the like inside a marrow cavity are discharged timely, the pressure inside the marrow cavity is not increased obviously, and the occurrence rate of a fat embolism syndrome decreases obviously. Besides, when the modified artificial hip joint prosthetic shank is thoroughly inserted into a near end of a thighbone, a certain amount of cancellous bone can be crammed into the groove along the wall of the thighbone, so that the modified artificial hip joint prosthetic shank is better attached to the wall of the thighbone. The groove accords with the shank body in shape, the width of the groove is the same from top to bottom, and therefore a good flow-guiding function is achieved. The groove is shallow, and the intensity of the entire prosthetic shank is not affected. The modified artificial hip joint prosthetic shank is simple in design, convenient to mold, and suitable for widespread popularization and use.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically, is a kind of improved artificial hip prosthesis's handle.
Background technology
Along with the aggravation of aged tendency of population, degeneration osteoarthritis dysfunction increases year by year, and such patient usually need to accept Replacement of Hip Joint and be treated.Replacement of Hip Joint has become the mature technology for the treatment of hip joint disease in whole latter stage.Fat embolism syndrome is one of hip replacement common complication, and small fat drop can enter by pulmonary capillary the Arterial system of body circulation, causes pulmonary circulation and respiratory dysfunction, and severe patient can cause death.At present very inconsistent for the incidence rate bibliographical information of joint replacement postoperative fat embolism syndrome post, about 1%～30%.The key factor of bringing out fat embolism syndrome is the intrinsic pressure rising of marrow.Marrow is intrinsic pressure when expanding marrow or first hip replacement can be increased to respectively 760 mmHg and 1000 mmHg, causes fat in the pulp cavity, myeloid tissue even bone bits to enter blood circulation, forms the thromboembolism of internal organs.
According to the fixing mode of artificial joint, the artificial hip prosthesis who uses clinically at present can be divided into bone cement fixed pattern prosthese and none-cement fixed pattern prosthese.These two large class artificial hip prosthesis' prosthesis handle is commonly used bright finish standard shank, Margarita standard shank etc., Chinese patent literature CN 02271916.4, May 28 2003 day for announcing, another kind of artificial hip prosthesis's handle is also disclosed, this artificial hip prosthesis's handle is to design some levels from top to bottom and the zigzag fin of mutual equidistant balance on the surface of existing artificial hip joint stem handle body near-end, can prevent artificial hip joint stem easily loosening and sinking in the human femur under loading pulp cavity, improve the stability after artificial hip joint stem is implanted.Each side and femur were fitted all comparatively tight when but such artificial hip prosthesis's handle inserted near end of thighbone, air in the femoral bone cavitas medullaris, blood etc. are discharged difficulty, cause easily the pressure in the femoral bone cavitas medullaris obviously to increase, greatly improve the incidence rate of fat embolism syndrome.Also once the someone proposes central authorities at artificial hip prosthesis's handle and opens perforation through hole up and down and play aerofluxus and reduce the intrinsic pressure effect of marrow, but the angle from biomechanics, can affect the intensity of whole prosthesis handle in the central openings of prosthesis handle, and the processing technology difficulty is larger.Therefore, need a kind of be convenient to air, blood discharge badly, can not increase the femoral bone cavitas medullaris internal pressure, keep prosthesis handle intensity in the prior art, and the simple artificial hip prosthesis's handle of processing technology, but yet there are no report about this class prosthesis handle at present.
Summary of the invention
The purpose of this utility model is, provides a kind of and is convenient to air, blood is discharged, and intensity is constant, and the simple artificial hip prosthesis's handle of processing technology.
For achieving the above object, the technical scheme taked of this utility model is:
A kind of improved artificial hip prosthesis's handle is provided with cervical vertebra mouth, handle neck and handle body, and the side of described handle body is provided with at least one groove, and described groove extends to the lower end of handle body from the upper end of handle body.
The degree of depth of described groove is 1-3mm.
The degree of depth of described groove is 2mm.
The side of described handle body is provided with two broad side faces and two narrower sides, and described groove is located on the broad side face.
Be equipped with groove on described two broad side faces.
The shape of described groove is consistent with the shape of handle body.
The width of described groove from top to bottom is identical.
This utility model advantage is:
1, the side of handle body is provided with groove, when artificial hip prosthesis's handle of the present utility model inserts near end of thighbone, air in the femoral bone cavitas medullaris, blood etc. can in time be discharged along groove, pressure in the femoral bone cavitas medullaris can obviously not increase, the incidence rate of fat embolism syndrome will obviously descend, in addition, and after it thoroughly inserts near end of thighbone, can also fill in a certain amount of spongy bone along femur wall from groove, this utility model and femur wall attach better;
2, the degree of depth of groove is 1-3mm, and is more shallow, can not affect whole intensity;
3, the shape of groove is consistent with the handle body, and width is consistent about preferred, can play good guide functions;
4, the simplicity of design of groove is convenient to modeling, and processing technology is simple, is suitable for generally promoting the use of.
Description of drawings
Accompanying drawing 1 is a kind of improved artificial hip prosthesis's handle structure sketch map of the present utility model.
Accompanying drawing 2 is the improved artificial hip prosthesis's handle structure of another kind of the present utility model sketch maps.
The specific embodiment
Below in conjunction with embodiment and with reference to accompanying drawing this utility model is further described.
The Reference numeral and the ingredient that relate in the accompanying drawing are as follows:
1. cervical vertebra mouth 2. handle necks
3. handle body 31. broad side faces
32. narrower side 4. fins
5. groove
Please refer to Fig. 1, Fig. 1 is the improved artificial hip prosthesis's handle structure of another kind of the present utility model sketch map.Described artificial hip prosthesis's handle is provided with cervical vertebra mouth 1 from top to bottom successively, handle neck 2 and handle body 3.The surface of described handle body 3 is bright finish.The transverse section of handle body 3 is rectangle substantially, and the side of handle body 3 comprises two broad side faces 31 and two narrower sides 32.Respectively be provided with a groove 5 on one of them broad side face 31 and one of them narrower side 32, described groove 5 extends to the lower end of handle body 3 from the upper end of handle body 3, consistent with the radian of handle body 3, be streamlined, the width of groove 5 from top to bottom dwindles gradually, the upper end width is 3.5mm, and the lower end width is 1.5mm, degree of depth 1-3mm.
Please refer to Fig. 2, Fig. 2 is a kind of improved artificial hip prosthesis's handle structure sketch map of the present utility model.Described artificial hip prosthesis's handle is provided with cervical vertebra mouth 1 from top to bottom successively, handle neck 2 and handle body 3.The surface of described handle body 3 upper ends is provided with some fins 4, and described fin 4 indentations are horizontal direction settings, and the distance between the adjacent lugs 4 equate.The lower end of described handle body 3 is bright finish.The transverse section of described handle body 3 is rectangle substantially, and the side of handle body 3 namely comprises two broad side faces 31 and two narrower side (not shown)s.Be respectively equipped with a groove 5 on described two broad side faces 31, described groove 5 extends to the lower end of handle body 3 from the upper end of handle body 3, consistent with the radian of handle body 3, is streamlined, and the width of groove 5 from top to bottom is consistent, is 1-2mm, and the degree of depth is 1-3mm.
For above-described embodiment 1-2, need to prove, 5 designs of described groove on broad side face 31 or narrower side 32 all can, as long as namely be arranged on the side of handle body 3, but decision design is on broad side face 32, so that modeling; Can only a side groove 5 be set, also can on two broad side faces 31 and two narrower sides 32, groove 5 be set all, preferably on two broad side faces 31, respectively establish groove 5, can make the air of both sides, blood discharge respectively; Groove 5 on each side can be one, also can be two, three or some; The depth design of described groove 5 is 1-3mm, and preferred 2mm is more shallow, can not affect the intensity of prosthesis handle integral body; The shape of described groove 5 is designed to consistent with handle body 3, and width is preferably designed as identically up and down, can guide better air, blood to discharge glibly.
The use of artificial hip prosthesis's handle of the present utility model gets final product according to normal Replacement of Hip Joint operation, when artificial hip prosthesis's handle of the present utility model inserts near end of thighbone, air in the femoral bone cavitas medullaris, blood etc. can in time be discharged along groove 5, pressure in the femoral bone cavitas medullaris can obviously not increase, the incidence rate of fat embolism syndrome will obviously descend, in addition, after it thoroughly inserts near end of thighbone, can also from groove 5, fill in a certain amount of spongy bone along femur wall, make this utility model and femur wall attach better.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model principle; can also make some improvement and replenish, these improvement and replenish and also should be considered as protection domain of the present utility model.
Claims (7)
1. improved artificial hip prosthesis's handle is provided with cervical vertebra mouth, handle neck and handle body, it is characterized in that the side of described handle body is provided with at least one groove, and described groove extends to the lower end of handle body from the upper end of handle body.
2. artificial hip prosthesis's handle according to claim 1 is characterized in that, the degree of depth of described groove is 1-3mm.
3. artificial hip prosthesis's handle according to claim 2 is characterized in that, the degree of depth of described groove is 2mm.
4. artificial hip prosthesis's handle according to claim 1 is characterized in that, the side of described handle body is provided with two broad side faces and two narrower sides, and described groove is located on the broad side face.
5. artificial hip prosthesis's handle according to claim 4 is characterized in that, is equipped with groove on described two broad side faces.
6. artificial hip prosthesis's handle according to claim 1 is characterized in that, the shape of described groove is consistent with the shape of handle body.
7. artificial hip prosthesis's handle according to claim 1 is characterized in that, the width of described groove from top to bottom is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382142 CN202776637U (en) | 2012-08-03 | 2012-08-03 | Modified artificial hip joint prosthetic shank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382142 CN202776637U (en) | 2012-08-03 | 2012-08-03 | Modified artificial hip joint prosthetic shank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202776637U true CN202776637U (en) | 2013-03-13 |
Family
ID=47803995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220382142 Expired - Fee Related CN202776637U (en) | 2012-08-03 | 2012-08-03 | Modified artificial hip joint prosthetic shank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202776637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110151364A (en) * | 2019-07-01 | 2019-08-23 | 广东省新材料研究所 | A kind of hip prosthesis handle structure and preparation method thereof |
| CN110292469A (en) * | 2019-06-25 | 2019-10-01 | 丁浩男 | A kind of interim prosthese of infection-resistant medical |
-
2012
- 2012-08-03 CN CN 201220382142 patent/CN202776637U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292469A (en) * | 2019-06-25 | 2019-10-01 | 丁浩男 | A kind of interim prosthese of infection-resistant medical |
| CN110151364A (en) * | 2019-07-01 | 2019-08-23 | 广东省新材料研究所 | A kind of hip prosthesis handle structure and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150803 |
|
| EXPY | Termination of patent right or utility model |