CN106109061A - Femoral stem - Google Patents
Femoral stem Download PDFInfo
- Publication number
- CN106109061A CN106109061A CN201610639767.8A CN201610639767A CN106109061A CN 106109061 A CN106109061 A CN 106109061A CN 201610639767 A CN201610639767 A CN 201610639767A CN 106109061 A CN106109061 A CN 106109061A
- Authority
- CN
- China
- Prior art keywords
- shank body
- stem
- femoral stem
- locking
- choke
- 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.)
- Pending
Links
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
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
Abstract
The invention provides a kind of femoral stem, including shank body proximal stem and shank body distal rod, femoral stem also includes: locking member, and one end of locking member is connected with shank body proximal stem, the other end of locking member is connected with shank body distal rod, shank body proximal stem and shank body distal rod to be locked.What the femoral stem in the present invention solved femoral stem of the prior art makes relatively low problem in its service life because fixed effect is poor.
Description
Technical field
The present invention relates to therapeutic treatment field, in particular to a kind of femoral stem.
Background technology
Along with the raising of artificial hip joint replacing operation quantity, the quantity of hip revision operation is also rising.At present, multiple
Overhauling of miscellaneous diseases example is the key problems that face of doctors.
Typically, overhauling of hip joint complexity case has the following characteristics that
1, general patient femur's near-end cortical bone is relatively thin or Cranial defect is serious, it is impossible to effectively fix jointing repair prosthesis；
2, general patient femur's near-end sclerotin is bad, (Bone Ingrowth) ability in bone regeneration capability or bone length；
3, it is typically necessary and uses fixing the assembling of far-end to overhaul handle or anatomical form overhauls handle；
4, narrow portion Bone Ingrowth+distal screw is fixed is optimal to overhaul fixed form.
Running into overhauling of complicated case, major part doctor uses and integrally overhauls handle or assembly type overhauls handle.Integrally turn over
The match condition repairing handle and femur anatomic form always is the emphasis that doctors pay close attention to, and mates bad meeting and makes femoral stem be difficult to beat
Entering, even femur is beaten and split, even if changing after the less handle of diameter squeezes into, the later stage fixed effect of femoral stem is bad, affects prosthese
Service life.Assembly type is overhauled handle and be can ensure that the match condition of distal femur, but does not accounts for the problem that narrow portion is fixing,
The screw relying solely on far-end is fixed, and the long-term effect that can make prosthese is poor.
In the prior art, femoral stem includes near end of thighbone and distal femur, consolidating between near end of thighbone and distal femur
Determining effect poor, this makes this femoral stem be easily damaged, and then makes service life of femoral stem relatively low.
Summary of the invention
Present invention is primarily targeted at a kind of femoral stem of offer, to solve imitating because of fixing of femoral stem of the prior art
The most poor and make relatively low problem in its service life.
To achieve these goals, the invention provides a kind of femoral stem, including shank body proximal stem and shank body distal rod, stock
Bone handle also includes: locking member, and one end of locking member is connected with shank body proximal stem, and the other end of locking member is with shank body distal rod even
Connect, so that shank body proximal stem and shank body distal rod are locked.
Further, locking member includes: locking body, and locking body is set in shank body proximal stem and/or shank body distal rod
Outside, the first end and the shank body proximal stem locking of locking body is connected, the second end of locking body and the locking of shank body distal rod
Connect.
Further, locking body includes tube body and is arranged on the first choke of tube body the first end, the first reducing
Being arranged with the first dead ring in portion, locking body is locked in shank body proximal stem by the first dead ring.
Further, the first choke being provided with the first elastomeric slit, the first elastomeric slit is away from the first choke
One end of tube body extends towards tube body.
Further, the first dead ring is split ring, and the first fastening bolt is passed through at the two ends of the peristome of the first dead ring
Connect.
Further, locking body includes tube body and is arranged on the second choke of tube body the second end, the second reducing
Being arranged with the second dead ring in portion, locking body is locked in shank body distal rod by the second dead ring.
Further, the second choke being provided with the second elastomeric slit, the second elastomeric slit is away from the second choke
One end of tube body extends towards tube body.
Further, the second dead ring is split ring, and the second fastening bolt is passed through at the two ends of the peristome of the second dead ring
Connect.
Further, locking body includes tube body, and the outer surface of tube body is loose structure.
Further, shank body proximal stem is threadeded with locking member.
Further, shank body distal rod is provided with fixed lobe, shank body proximal stem is provided with and matches with fixed lobe
The fixing hole closed, fixed lobe inserts in fixing hole.
Further, fixed lobe is tapered protrusion, and fixing hole is the bellmouth suitable with tapered protrusion.
Further, shank body distal rod is provided with the fastener hole for inserting for securing member.
Femoral stem in the present invention includes shank body proximal stem and shank body distal rod, owing to this femoral stem also includes locking member,
Locking member is all connected with shank body proximal stem and shank body distal rod, so, just can realize shank body proximal stem and shank body distal rod it
Between locking, it is ensured that fixed effect between the two, thus ensure the fixed effect of femoral stem, improve the use longevity of femoral stem
Life.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment of the femoral stem according to the present invention；And
Fig. 2 shows the structural representation of the locking member of the femoral stem in Fig. 1.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10, shank body proximal stem；20, shank body distal rod；21, fixed lobe；22, fastener hole；30, locking member；31, locking tube
Body；311, tube body；312, the first choke；313, the first elastomeric slit；314, the second choke；315, the second elasticity is cut
Mouthful；32, the first dead ring；33, the first fastening bolt；34, the second dead ring；35, the second fastening bolt.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The invention provides a kind of femoral stem, refer to Fig. 1 and Fig. 2, this femoral stem includes shank body proximal stem 10 and shank body
Distal rod 20, femoral stem also includes: locking member 30, and one end of locking member 30 is connected with shank body proximal stem 10, locking member 30 another
One end is connected with shank body distal rod 20, shank body proximal stem 10 and shank body distal rod 20 to be locked.
Femoral stem in the present invention includes shank body proximal stem 10 and shank body distal rod 20, also includes locking due to this femoral stem
Part 30, locking member 30 is all connected with shank body proximal stem 10 and shank body distal rod 20, so, just can realize shank body proximal stem 10 He
Locking between shank body distal rod 20, it is ensured that fixed effect between the two, thus ensure the fixed effect of femoral stem, improve stock
The service life of bone handle.
The concrete structure of the locking member 30 in the present embodiment is, as it is shown in figure 1, locking member 30 includes: locking body 31, lock
Tight body 31 is set in shank body proximal stem 10 and/or the outside of shank body distal rod 20, and the first end of locking body 31 is near with shank body
End bar 10 locking connects, and the second end of locking body 31 is connected with shank body distal rod 20 locking.Preferably, locking body 31 is sheathed
Junction between shank body proximal stem 10 and shank body distal rod 20.
For the ease of the connection between locking body 31 and shank body proximal stem 10, as in figure 2 it is shown, locking body 31 includes pipe
Main body 311 and the first choke 312 being arranged on tube body 311 first end, the first choke 312 is arranged with the first dead ring
32, locking body 31 is locked in shank body proximal stem 10 by the first dead ring 32.
In the present embodiment, the first choke 312 being provided with the first elastomeric slit 313, the first elastomeric slit 313 is from
One choke 312 extends towards tube body 311 away from one end of tube body 311.By arranging in the first elastomeric slit 313, can
To ensure that the locking between locking body 31 and shank body proximal stem 10 is connected.
In order to realize the socket of the first dead ring 32 more easily, the first dead ring 32 is split ring, the first dead ring
The two ends of the peristome of 32 are connected by the first fastening bolt 33.So, the first dead ring 32 is set in by its peristome
On first choke 312, recycle the first fastening bolt 33 and connection is locked at the two ends of the peristome of the first dead ring 32, just may be used
So that the first choke 312 is bundled in shank body proximal stem 10.
For the ease of the connection between locking body 31 and shank body distal rod 20, as in figure 2 it is shown, locking body 31 includes pipe
Main body 311 and the second choke 314 being arranged on tube body 311 second end, the second choke 314 is arranged with the second dead ring
34, locking body 31 is locked in shank body distal rod 20 by the second dead ring 34.
In the present embodiment, the second choke 314 being provided with the second elastomeric slit 315, the second elastomeric slit 315 is from
Two chokes 314 extend towards tube body 311 away from one end of tube body 311.By arranging in the second elastomeric slit 315, can
To ensure that the locking between locking body 31 and shank body distal rod 20 is connected.
In the present embodiment, the second dead ring 34 is split ring, and the two ends of the peristome of the second dead ring 34 pass through second
Fastening bolt 35 connects.So, the second dead ring 34 is set on the second choke 314 by its peristome, recycling the
The two ends of the peristome of the second dead ring 34 are locked and are connected by two fastening bolts 35, just can be bundled in by the second choke 314
In shank body distal rod 20.
In the present embodiment, locking body 31 includes that tube body 311, the outer surface of tube body 311 are loose structure.This reality
Execute example by being loose structure by the surface configuration of tube body 311, it is ensured that overhaul later stage Bone Ingrowth, reach the later stage excellent
Fixed effect.
In order to ensure the fixed effect of shank body proximal stem 10 and locking member 30, shank body proximal stem 10 is with locking member 30 screw thread even
Connect.Preferably, the end of shank body proximal stem 10 is provided with external screw thread, and locking member 30 has the interior spiral shell suitable with this external screw thread
Stricture of vagina.
In the present embodiment, as it is shown in figure 1, be provided with fixed lobe 21 in shank body distal rod 20, in shank body proximal stem 10
Being provided with the fixing hole matched with fixed lobe 21, fixed lobe 21 inserts in fixing hole.As such, it is possible to improve shank body far-end
Fixed effect between bar 20 and shank body proximal stem 10.
In order to improve fixed effect, fixed lobe 21 is tapered protrusion, and fixing hole is the taper suitable with tapered protrusion
Hole.Preferably, the miner diameter end of tapered protrusion is the top of this tapered protrusion, and this miner diameter end inserts in bellmouth.
In the present embodiment, shank body distal rod 20 is provided with the fastener hole 22 for inserting for securing member.Preferably, should
Fastener hole 22 is screwed hole.As such, it is possible to it is solid to coordinate the screw suitable with this fastener hole 22 to carry out this shank body proximal stem 10
Fixed.
Visible, the present embodiment example both fixed shank body far-end by screw, make again narrow portion Bone Ingrowth can ensure that shank body early stage,
Mid-term and the fixed effect in later stage, improve the service life of prosthese.It is solid that scheme in the present invention can solve to overhaul femoral prosthesis
Fixed bad problem.
Femoral prosthesis (femoral stem) of overhauling in the present invention have employed following structure:
Shank body near-end (shank body proximal stem 10) is designed with regulation screw thread, can adjust according to the position in the narrow portion of patient femur
Joint；
Shank body proximal screw end indoor design has taper hole, is used for coordinating shank body distal rod；
The outer surface of narrow portion stuck-module (locking member 30) uses 3D to print loose structure, it is ensured that overhaul later stage Bone Ingrowth,
Reach later stage excellent fixing purpose.
Narrow portion stuck-module can make module navigate to the position in the narrow portion of patient femur, for bone by rotating adjusting position
Grow into offer condition.After position adjustments completes, screw (the first dead ring 32 and the second fastening of two clamping screw compression staies
Ring 34), fixing narrow portion stuck-module；
Shank body distal rod is anatomical form structure, can regulate the angle with near-end, after having regulated, fixing by cone lock.
Shank body distal rod is designed with screw hole, can fix with attachment screw.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
Femoral stem in the present invention includes shank body proximal stem and shank body distal rod, owing to this femoral stem also includes locking member,
Locking member is all connected with shank body proximal stem and shank body distal rod, so, just can realize shank body proximal stem and shank body distal rod it
Between locking, it is ensured that fixed effect between the two, thus ensure the fixed effect of femoral stem, improve the use longevity of femoral stem
Life.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (13)
1. a femoral stem, including shank body proximal stem (10) and shank body distal rod (20), it is characterised in that described femoral stem is also wrapped
Include:
Locking member (30), one end of described locking member (30) is connected with described shank body proximal stem (10), described locking member (30)
The other end is connected with described shank body distal rod (20), described shank body proximal stem (10) and described shank body distal rod (20) to be locked
Tightly.
Femoral stem the most according to claim 1, it is characterised in that described locking member (30) including:
Locking body (31), described locking body (31) is set in described shank body proximal stem (10) and/or described shank body distal rod
(20) outside, the first end of described locking body (31) is connected with the locking of described shank body proximal stem (10), described locking body
(31) the second end is connected with the locking of described shank body distal rod (20).
Femoral stem the most according to claim 2, it is characterised in that described locking body (31) include tube body (311) and
It is arranged on first choke (312) of described tube body (311) first end, described first choke (312) is arranged with first
Dead ring (32), described locking body (31) is locked on described shank body proximal stem (10) by described first dead ring (32).
Femoral stem the most according to claim 3, it is characterised in that be provided with the first bullet on described first choke (312)
Property otch (313), described first elastomeric slit (313) from described first choke (312) away from the one of described tube body (311)
Hold and extend towards described tube body (311).
Femoral stem the most according to claim 3, it is characterised in that described first dead ring (32) is split ring, described
The two ends of the peristome of one dead ring (32) are connected by the first fastening bolt (33).
6. according to the femoral stem according to any one of claim 2 to 5, it is characterised in that described locking body (31) includes pipe
Main body (311) and be arranged on second choke (314) of described tube body (311) second end, on described second choke (314)
Being arranged with the second dead ring (34), described locking body (31) is locked at described shank body far-end by described second dead ring (34)
On bar (20).
Femoral stem the most according to claim 6, it is characterised in that be provided with the second bullet on described second choke (314)
Property otch (315), described second elastomeric slit (315) from described second choke (314) away from the one of described tube body (311)
Hold and extend towards described tube body (311).
Femoral stem the most according to claim 6, it is characterised in that described second dead ring (34) is split ring, described
The two ends of the peristome of two dead rings (34) are connected by the second fastening bolt (35).
Femoral stem the most according to claim 2, it is characterised in that described locking body (31) includes tube body (311), institute
The outer surface stating tube body (311) is loose structure.
Femoral stem the most according to claim 1, it is characterised in that described shank body proximal stem (10) and described locking member
(30) threaded.
11. femoral stem according to claim 1, it is characterised in that be provided with fixing convex on described shank body distal rod (20)
Rise (21), described shank body proximal stem (10) is provided with the fixing hole matched with described fixed lobe (21), described fixing convex
Play (21) to insert in described fixing hole.
12. femoral stem according to claim 11, it is characterised in that described fixed lobe (21) is tapered protrusion, described
Fixing hole is the bellmouth suitable with described tapered protrusion.
13. femoral stem according to claim 1, it is characterised in that be provided with for supplying on described shank body distal rod (20)
The fastener hole (22) that securing member inserts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639767.8A CN106109061A (en) | 2016-08-05 | 2016-08-05 | Femoral stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639767.8A CN106109061A (en) | 2016-08-05 | 2016-08-05 | Femoral stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106109061A true CN106109061A (en) | 2016-11-16 |
Family
ID=57254958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610639767.8A Pending CN106109061A (en) | 2016-08-05 | 2016-08-05 | Femoral stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106109061A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693165A (en) * | 2017-10-13 | 2018-02-16 | 北京爱康宜诚医疗器材有限公司 | Femoral prosthesis |
| CN109223254A (en) * | 2018-07-05 | 2019-01-18 | 谢锦恒 | A kind of new titanium alloy knuckle support applying calcium phosphate bioactive ceramics |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5725592A (en) * | 1996-10-29 | 1998-03-10 | Hayes Medical, Inc. | Modular prosthesis having neck component connected to stem component through cavity in body component |
| US20020058999A1 (en) * | 2000-11-08 | 2002-05-16 | Dwyer Kimberly A. | Modular prosthesis having a stem component with a counterbored cavity defined therein and associated method |
| US7097664B2 (en) * | 2000-07-20 | 2006-08-29 | Depuy Products, Inc. | Modular femoral stem component for a hip joint prosthesis |
| CN201425808Y (en) * | 2009-05-22 | 2010-03-17 | 马若凡 | Length and angle adjustable femur model |
| CN202096312U (en) * | 2011-03-18 | 2012-01-04 | 北京百慕航材高科技股份有限公司 | Femur proximal-end hip joint prosthesis |
| KR101281446B1 (en) * | 2006-07-19 | 2013-07-02 | 전북대학교산학협력단 | distal modular femoral stem used by isoelastic nonmetal rod or bioabsorbable rod |
| CN203280541U (en) * | 2013-04-26 | 2013-11-13 | 北京力达康科技有限公司 | Micro-hole tantalum coating assembly type femoral component prosthesis |
| CN104622603A (en) * | 2015-02-10 | 2015-05-20 | 北京市春立正达医疗器械股份有限公司 | Combined type femoral stem |
| CN104758094A (en) * | 2015-04-30 | 2015-07-08 | 李照文 | Locking type artificial femoral stem |
| CN205083711U (en) * | 2015-10-16 | 2016-03-16 | 重庆润泽医药有限公司 | Hip joint correction implant |
| CN105496610A (en) * | 2016-01-25 | 2016-04-20 | 中国人民解放军第二军医大学 | Hip dislocation preventive adjustable artificial hemipelvic prosthesis |
| CN206214239U (en) * | 2016-08-05 | 2017-06-06 | 北京爱康宜诚医疗器材有限公司 | Femoral stem |
-
2016
- 2016-08-05 CN CN201610639767.8A patent/CN106109061A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5725592A (en) * | 1996-10-29 | 1998-03-10 | Hayes Medical, Inc. | Modular prosthesis having neck component connected to stem component through cavity in body component |
| US7097664B2 (en) * | 2000-07-20 | 2006-08-29 | Depuy Products, Inc. | Modular femoral stem component for a hip joint prosthesis |
| US20020058999A1 (en) * | 2000-11-08 | 2002-05-16 | Dwyer Kimberly A. | Modular prosthesis having a stem component with a counterbored cavity defined therein and associated method |
| KR101281446B1 (en) * | 2006-07-19 | 2013-07-02 | 전북대학교산학협력단 | distal modular femoral stem used by isoelastic nonmetal rod or bioabsorbable rod |
| CN201425808Y (en) * | 2009-05-22 | 2010-03-17 | 马若凡 | Length and angle adjustable femur model |
| CN202096312U (en) * | 2011-03-18 | 2012-01-04 | 北京百慕航材高科技股份有限公司 | Femur proximal-end hip joint prosthesis |
| CN203280541U (en) * | 2013-04-26 | 2013-11-13 | 北京力达康科技有限公司 | Micro-hole tantalum coating assembly type femoral component prosthesis |
| CN104622603A (en) * | 2015-02-10 | 2015-05-20 | 北京市春立正达医疗器械股份有限公司 | Combined type femoral stem |
| CN104758094A (en) * | 2015-04-30 | 2015-07-08 | 李照文 | Locking type artificial femoral stem |
| CN205083711U (en) * | 2015-10-16 | 2016-03-16 | 重庆润泽医药有限公司 | Hip joint correction implant |
| CN105496610A (en) * | 2016-01-25 | 2016-04-20 | 中国人民解放军第二军医大学 | Hip dislocation preventive adjustable artificial hemipelvic prosthesis |
| CN206214239U (en) * | 2016-08-05 | 2017-06-06 | 北京爱康宜诚医疗器材有限公司 | Femoral stem |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693165A (en) * | 2017-10-13 | 2018-02-16 | 北京爱康宜诚医疗器材有限公司 | Femoral prosthesis |
| CN109223254A (en) * | 2018-07-05 | 2019-01-18 | 谢锦恒 | A kind of new titanium alloy knuckle support applying calcium phosphate bioactive ceramics |
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Application publication date: 20161116 |
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