CN203539495U - Acetabular cup mounting and positioning device - Google Patents
Acetabular cup mounting and positioning device Download PDFInfo
- Publication number
- CN203539495U CN203539495U CN201320628941.0U CN201320628941U CN203539495U CN 203539495 U CN203539495 U CN 203539495U CN 201320628941 U CN201320628941 U CN 201320628941U CN 203539495 U CN203539495 U CN 203539495U
- Authority
- CN
- China
- Prior art keywords
- bar section
- acetabular cup
- screw head
- positioning device
- hollow bar
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4609—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of acetabular cups
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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physical Education & Sports Medicine (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model relates to an acetabular cup mounting and positioning device and is applicable to the field of medical apparatus and instruments. The acetabular cup mounting and positioning device comprises an operating lever body and is characterized in that the operating lever body is crank throw shaped, and comprises a hollow lever section positioned at a front part and a holding lever section positioned at a rear part, wherein a rotatable knocking rod is arranged inside the body of the hollow lever section, the front end of the rotatable knocking rod is connected with a threaded part extending out of the front end of the hollow lever section, and the rear end of the rotatable knocking rod extends out from the rear end port of the hollow lever section so as to be convenient for operation; the axial lead of the main body of the holding lever section and the axial lead of the main body of the hollow lever section form an obtuse angle, the front end of the main body of the holding lever section is connected with a side wall of the rear part of the main body of the hollow lever section through a middle curved connecting rod. The acetabular cup mounting and positioning device provided by the utility model is convenient for doctors to operate, and can reduce cut size of the guiding hole of a small surgical instrument effectively.
Description
Technical field
This utility model relates to a kind of acetabular cup mounting and positioning device, is applicable to medical instruments field.
Background technology
Hip joint Reconstruction is a kind of successful solution for the hip joint degenerative disease patient of high request, and in addition for young hip dysplasia or traumatic arthritis patient, hip replacement can improve the gentle pain of movable function.In acetabulum reconstruction art, after acetabular bone burr, need setting acetabular cup, and the common external form of existing acetabular cup erector is straight-bar type, in installation process, need acetabular cup erector to be rotated, also to knock simultaneously, and the abduction angle of acetabular bone is 35 °～45 °, abduction angle is too large when avoiding in art setting acetabular cup, the incision that need do in a big way art chamber lower edge soft tissue is peeled off, cause operative incision large, generally at 10-15cm, art intracavity soft tissue dissection scope is wide, and soft tissue injury is large, affects postoperative recovery and outward appearance beauty treatment.
Summary of the invention
The purpose of this utility model is to provide a kind of acetabular cup mounting and positioning device, is not only conducive to doctor's operation task, and can effectively reduce the wound size of operating theater instruments introducing port, reduces wound, is conducive to joint stable.
The technical solution of the utility model is: a kind of acetabular cup mounting and positioning device, comprise manipulation shaft, it is characterized in that, described manipulation shaft is crank throw shape, comprise the grip bar section that is positioned at anterior hollow bar section and is positioned at rear portion, in described hollow bar segment body, be provided with and can turn knock bar, describedly can turn knock bar front end and be connected with the screw head that stretches out hollow bar section front port, can turn knock rod rear end and stretch out external in order to operation from hollow bar section rear port; In obtuse angle, through centre, curved connecting rod is connected with the sidewall of hollow bar section back body described grip bar section body front end the axial line of the axial line of described grip bar section main body and hollow bar section main body.
Further, the perk of described hollow bar section front end, the axial line of warping part is positioned on the extended line of grip bar section axial line, described screw head through Hooks coupling universal coupling with can turn knock bar and be in transmission connection.
Further, the warping part of described hollow bar section is provided with for blocking the annular clamp of screw head rear end annular groove, described clamp is provided with cross through hole, and described screw head rear end penetrates clamp through hole, and the annular groove of screw head rear end is stuck on the thrust of clamp inwall.
Further, described Hooks coupling universal coupling front end is outer-hexagonal connecting rod, and described outer-hexagonal connecting rod coordinates to drive screw head rotation with the interior hexagonal phase of screw head.
Further, describedly can turn knock the extension that rod rear end stretches out hollow bar section rear port and be provided with ratchet, described hollow bar section rear port is provided with to coordinate with ratchet and prevents the rotatable sliding shoe that bar rotates that knocks.
Compared with prior art, the utlity model has following advantage: (1) is not only conducive to doctor's operation task, and can effectively reduce the wound size of operating theater instruments introducing port, use this device operative incision only to need 5-6cm, do not need to peel off too much soft tissue in visual area, can retain the important structure such as joint capsule, be conducive to postoperative joint stable; (2) adopt the radian that meets acetabular bone expanded angle, surgical wound is little, is conducive to postoperation recovery, and recovery effects is good.
accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A district enlarged drawing of Fig. 1 of the present utility model;
Fig. 3 is the B-B cutaway view of Fig. 1 of the present utility model;
In figure: 1-handles shaft 11-hollow bar section 111-hollow bar section rear port 112-hollow bar section main body axial line 12-grip bar section 121-grip bar section main body axial line 13-warping part axial line 2-can turn knock the curved connecting rod 6-of bar 21-ratchet 211-groove 3-screw head 31-annular groove 71 4-obtuse angle 5-Hooks coupling universal coupling 61-outer-hexagonal connecting rod 7-annular clamp 71-thrust 8-sliding shoe 81-double wedge.
The specific embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but this utility model is not limited to this.
With reference to figure 1 and Fig. 2 and Fig. 3, a kind of acetabular cup mounting and positioning device, comprise and handle shaft 1, described manipulation shaft is crank throw shape, comprise the grip bar section 12 that is positioned at anterior hollow bar section 11 and is positioned at rear portion, in described hollow bar segment body, be provided with and can turn knock bar 2, describedly can turn knock bar front end and be connected with the screw head 3 that stretches out hollow bar section front port, can turn knock rod rear end and from hollow bar section rear port 111, stretch out externally in order to medical care precess, conveniently control thread head rotation; The axial line 121 of described grip bar section main body and the axial line 112 of hollow bar section main body in obtuse angle 4, through centre, curved connecting rod 5 is connected with the sidewall of hollow bar section back body described grip bar section body front end.
For the ease of setting acetabular cup, the perk of described hollow bar section front end, the axial line 13 of warping part is positioned on the extended line of grip bar section axial line 121, for the ease of can turn knocking bar through the portion's of being upturned rear drive screw head rotation of turning round, described screw head through Hooks coupling universal coupling 6 with can turn knock bar and be in transmission connection.
In order to prevent that screw head from coming off and affecting operation from hollow bar section, the warping part of described hollow bar section is provided with for blocking the annular clamp 7 of screw head rear end annular groove 31, described clamp is provided with cross through hole, through-hole diameter is slightly larger than screw head rear end diameter, described screw head rear end penetrates clamp through hole, under the effect of spring force, the annular groove of screw head rear end is stuck on the thrust 71 of clamp inwall, if screw head will be taken off from hollow bar section, only need press clamp, the annular groove of screw head rear end departs from the protrusion of clamp.
For the ease of Hooks coupling universal coupling, be connected with screw head, described Hooks coupling universal coupling front end is outer-hexagonal connecting rod 61, described outer-hexagonal connecting rod matches to drive screw head rotation with the interior hexagonal 32 of screw head, and screw head and Hooks coupling universal coupling can also be that other are connected simultaneously.
In order to prevent can turn knocking bar rotation in the process of knocking, describedly can turn knock the extension that rod rear end stretches out hollow bar section rear port and be provided with ratchet 21, described hollow bar section rear port is provided with to coordinate with ratchet and blocks ratchet and prevent the rotatable sliding shoe 8 that bar rotates that knocks, and sliding shoe is provided with double wedge 81 and matches with the groove 211 of ratchet.
Operation principle of the present utility model:
First acetabular cup is connected with the screw thread of screw head, then acetabular cup mounting and positioning device is stretched into from hipbone otch.Then according to the angle of required installation, acetabular cup is aimed to the acetabular cup installing hole alignment of milled, after alignment, use plexor member to knock grip bar section rearward end, because the axial line of hollow bar section front end warping part is positioned on the extended line of grip bar section axial line, thereby suffered power arrives screw head by integral drive, and then be sent to acetabular cup, acetabular cup is fixed on acetabular cup installing hole, push the sliding shoe of hollow bar section rear end open, make it separatedly with ratchet be beneficial to the rotatable bar rotation of knocking.Be rotated counterclockwise and can turn knock bar, make screw head separated with acetabular cup, acetabular cup mounting and positioning device takes out from window the most at last.
In this utility model one preferred embodiment, in grip bar rear end, can also be enclosed with Antislip plastic gum cover, in handled easily operation.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to this utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. an acetabular cup mounting and positioning device, comprise manipulation shaft, it is characterized in that, described manipulation shaft is crank throw shape, comprise the grip bar section that is positioned at anterior hollow bar section and is positioned at rear portion, in described hollow bar segment body, be provided with and can turn knock bar, describedly can turn knock bar front end and be connected with the screw head that stretches out hollow bar section front port, can turn knock rod rear end and stretch out external in order to operation from hollow bar section rear port; In obtuse angle, through centre, curved connecting rod is connected with the sidewall of hollow bar section back body described grip bar section body front end the axial line of the axial line of described grip bar section main body and hollow bar section main body.
2. acetabular cup mounting and positioning device according to claim 1, it is characterized in that, the perk of described hollow bar section front end, the axial line of warping part is positioned on the extended line of grip bar section axial line, described screw head through Hooks coupling universal coupling with can turn knock bar and be in transmission connection.
3. acetabular cup mounting and positioning device according to claim 2, it is characterized in that, the warping part of described hollow bar section is provided with for blocking the annular clamp of screw head rear end annular groove, described clamp is provided with cross through hole, described screw head rear end penetrates clamp through hole, and the annular groove of screw head rear end is stuck on the thrust of clamp inwall.
4. acetabular cup mounting and positioning device according to claim 2, is characterized in that, described Hooks coupling universal coupling front end is outer-hexagonal connecting rod, and described outer-hexagonal connecting rod coordinates to drive screw head rotation with the interior hexagonal phase of screw head.
5. acetabular cup mounting and positioning device according to claim 1, it is characterized in that, describedly can turn knock the extension that rod rear end stretches out hollow bar section rear port and be provided with ratchet, described hollow bar section rear port is provided with to coordinate with ratchet and prevents the rotatable sliding shoe that bar rotates that knocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628941.0U CN203539495U (en) | 2013-10-12 | 2013-10-12 | Acetabular cup mounting and positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628941.0U CN203539495U (en) | 2013-10-12 | 2013-10-12 | Acetabular cup mounting and positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203539495U true CN203539495U (en) | 2014-04-16 |
Family
ID=50457668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320628941.0U Expired - Fee Related CN203539495U (en) | 2013-10-12 | 2013-10-12 | Acetabular cup mounting and positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203539495U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105012053A (en) * | 2014-04-25 | 2015-11-04 | 上海微创骨科医疗科技有限公司 | Direct insertion type guide device for hip replacement |
| CN105012054A (en) * | 2014-04-25 | 2015-11-04 | 上海微创骨科医疗科技有限公司 | Guide system for hip replacement and using method thereof |
| CN106983587A (en) * | 2016-01-20 | 2017-07-28 | 北京纳通科技集团有限公司 | Using prosthesis apparatus |
-
2013
- 2013-10-12 CN CN201320628941.0U patent/CN203539495U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105012053A (en) * | 2014-04-25 | 2015-11-04 | 上海微创骨科医疗科技有限公司 | Direct insertion type guide device for hip replacement |
| CN105012054A (en) * | 2014-04-25 | 2015-11-04 | 上海微创骨科医疗科技有限公司 | Guide system for hip replacement and using method thereof |
| CN106983587A (en) * | 2016-01-20 | 2017-07-28 | 北京纳通科技集团有限公司 | Using prosthesis apparatus |
| CN106983587B (en) * | 2016-01-20 | 2019-03-15 | 北京纳通科技集团有限公司 | Using prosthesis instrument |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161012 |