CN102018554B - Femoral hip joint stem holder - Google Patents
Femoral hip joint stem holder Download PDFInfo
- Publication number
- CN102018554B CN102018554B CN 200910093023 CN200910093023A CN102018554B CN 102018554 B CN102018554 B CN 102018554B CN 200910093023 CN200910093023 CN 200910093023 CN 200910093023 A CN200910093023 A CN 200910093023A CN 102018554 B CN102018554 B CN 102018554B
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- CN
- China
- Prior art keywords
- threaded rod
- handle
- hip joint
- femoral stem
- end cap
- 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.)
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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
- A61F2/4607—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 hip femoral endoprostheses
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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
Abstract
The invention relates to a femoral hip joint stem holder. The holder comprises a threaded rod, a screwing end cap, a handle and a movable handle, wherein the head of the threaded rod is provided with threads which are matched with a femoral stem; the screwing end cap is connected with the tail end of the threaded rod; the handle is rotatably sleeved at the periphery of the rear part of the threaded rod; and the movable handle is vertically fixed on the handle. The femoral hip joint stem holder can be used conveniently and fast, is rational in torque transfer and has a broad operating range, so that the success rate of surgery is improved.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly relate to and a kind of prosthese is squeezed into device for holding hip joint femoral stem (the B-B handle is held the handle device) in the patient body.
Background technology
See also shown in Figure 1ly, existing device for holding hip joint femoral stem is by dop 11, dop mother 12, connecting rod 13, end cap 14 and live and form 15, and wherein, dop 11, dop mother 12, end cap 14 and work all are fixed in 15 on the connecting rod 13.During the implant surgery of femoral hip prosthesis prosthese, first prosthese is put into the groove of dop 11, the head of connecting rod 13 is aimed at the femoral stem groove, slip dop 11 is adjusted position between itself and the dop mother 12, to adapt to different femoral stem, keep connecting rod 13 coaxial with the prosthese center, rotation is lived 15, drive connecting rod 13, thereby the femoral stem jail is fixed.After prosthese is implanted, reverse rotation connecting rod 13, the head of connecting rod 13 is deviate from from the femoral stem groove, and the groove of dop 11 is deviate from the femoral stem head.
Above-mentioned device for holding hip joint femoral stem, though really can be used as assistive device holds and squeezes into prosthese in the patient body, really has progressive, but when using, reality but finds also to have in its structure some shortcomings, cause this device for holding hip joint femoral stem in practical application, fail to reach best result of use, and its shortcoming can be summarized as follows:
1, dop 11 is larger, can have influence on doctor's the visual field in the operation;
2, it is not convenient to hold prosthetic procedure, should aim at head and the femoral stem groove of connecting rod 13, adjusts again the relative of dop 11 and dop mother 12, and adjustment link is loaded down with trivial details, the time is long.
When 3, squeezing into prosthetic procedure, make easily femoral stem cooperate the tapering gouge.
This shows that above-mentioned existing device for holding hip joint femoral stem obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.How to found a kind of convenient to use, moment conduction rationally, the operation broad view, and therefore can improve the device for holding hip joint femoral stem of the new structure of success rate of operation, become one of improved target of current industry.
Summary of the invention
The object of the invention is to, overcome the defective that existing device for holding hip joint femoral stem exists, and provide a kind of device for holding hip joint femoral stem of new structure, technical problem to be solved be make that it is convenient to use, the moment conduction rationally, the operation broad view, and therefore can improve success rate of operation, thereby more be suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of device for holding hip joint femoral stem according to the present invention proposes comprises threaded rod, screws end cap, handle and the handle of living that wherein the threaded rod head is provided with the screw thread that is complementary with femoral stem; Screwing end cap is connected with the tail end of threaded rod; The rotatable threaded rod back periphery that is placed in of handle; Live vertically being fixed on the handle.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid device for holding hip joint femoral stem also comprises abutment sleeve and spring, and wherein abutment sleeve is fixedly connected with handle, and it is anterior peripheral to be placed in threaded rod, and the threaded rod head leans out abutment sleeve; The tail end of threaded rod is followed successively by flat structure and fixture block, screws end cap and is provided with the U-shaped groove that mates with flat structure, and the tail end of threaded rod inserts in the U-shaped groove; Spring is arranged on the flat structure of threaded rod, and an end and fixture block offset, the other end with screw end cap and be fixedly connected with.
Aforesaid device for holding hip joint femoral stem also comprises connecting cylinder, and between handle and threaded rod, wherein the fixture block diameter of threaded rod is greater than body of rod diameter, and fixture block is being provided with the resilience groove near body of rod place; The shaft section of connecting cylinder is U-shaped, the U-shaped mouth with screw end cap and be fixedly connected with, be provided with the opening suitable with threaded rod body of rod diameter at the bottom of the U-shaped, the body of rod of threaded rod passes from this opening, spring and fixture block are placed in the connecting cylinder, and be provided with aperture in connecting cylinder one side and corresponding position, fixture block position, and being embedded with steel ball in the aperture, the distance between steel ball and the resilience groove leans out the distance of abutment sleeve greater than threaded rod; Handle inwall and steel ball corresponding position are provided with annular holddown groove.
Aforesaid device for holding hip joint femoral stem, described handle also is being connected with slipmat with the contact jaw that screws end cap.
Aforesaid device for holding hip joint femoral stem, the cross section of described handle are oval.
Aforesaid device for holding hip joint femoral stem, described slipmat are the medical ptfe material.
The present invention compared with prior art has following obvious advantage and beneficial effect at least:
1, device for holding hip joint femoral stem of the present invention has replaced the dop structure with abutment sleeve, and will live vertically being fixed on the handle, for the doctor provides the openr visual field, has improved safety and the efficient of operation in operation;
2, device for holding hip joint femoral stem of the present invention, the structural design of handle, abutment sleeve, spring and slipmat, the rotary manipulation of being more convenient for, and can be common to different femoral stem, and operation is greatly simplified, and efficient is higher;
3, device for holding hip joint femoral stem of the present invention, its spring structure can partly be transferred to the power between femoral stem groove and the threaded rod on the end face of abutment sleeve when squeezing into, throwing off operation, has obviously reduced screw thread, the impaired danger of apparatus;
4, device for holding hip joint femoral stem of the present invention, structural design is simple, and the loading and unloading prosthetic procedure is convenient, and it is more clear, smooth to perform the operation, thereby more is suitable for practicality.
In sum, device for holding hip joint femoral stem of the present invention, convenient to use, the moment conduction rationally operates broad view, and therefore can improve success rate of operation.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has larger improvement in product structure or use, significant progress is arranged technically, and produced handy and practical effect, and more existing device for holding hip joint femoral stem has outstanding effect, thereby more is suitable for practicality.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of description, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of existing device for holding hip joint femoral stem.
Fig. 2 is the structural representation of device for holding hip joint femoral stem of the present invention.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of device for holding hip joint femoral stem, structure, feature and effect thereof to foundation the present invention proposes are described in detail as follows.
See also shown in Figure 2ly, device for holding hip joint femoral stem of the present invention mainly comprises threaded rod 21, screws end cap 22, handle 23 and living 24.Wherein, the head of threaded rod 21 is provided with the screw thread that is complementary with femoral stem, tail end with screw end cap 22 and be connected, the cross section of handle 23 is preferably ellipse, and rotatable threaded rod 21 back periphery that are placed in, and lives in vertically being fixed in 24 on the handle 23.
Better, the present invention also can comprise abutment sleeve 25 and spring 26.Wherein, abutment sleeve 25 is fixedly connected with handle 23, and it is anterior peripheral to be placed in threaded rod 21, and makes threaded rod 21 heads lean out abutment sleeve 25.The tail end of threaded rod 21 is followed successively by flat structure and fixture block, screws end cap 22 and is provided with the U-shaped groove that mates with this flat structure, and the tail end of threaded rod 21 inserts and screws in the U-shaped groove of end cap 22.Spring 26 is arranged on the flat structure of threaded rod 21, and an end and fixture block offset, the other end with screw end cap 22 and be fixedly connected with.
Better, the present invention also comprises a connecting cylinder 27, between handle 23 and threaded rod 21.Wherein, the fixture block diameter of threaded rod 21 is greater than body of rod diameter, and fixture block is being provided with the resilience groove near body of rod place.The shaft section of connecting cylinder 27 is U-shaped, the U-shaped mouth with screw end cap 22 and be fixedly connected with, be provided with the opening suitable with threaded rod 21 body of rod diameters at the bottom of the U-shaped, the body of rod of threaded rod 21 passes from this opening, spring 26 and fixture block are placed in the connecting cylinder 27, and be provided with aperture in connecting cylinder 27 1 sides and corresponding position, fixture block position, and being embedded with steel ball in the aperture, the distance between steel ball and the resilience groove leans out the distance of abutment sleeve 25 greater than threaded rod 21.The inwall of handle 23 and steel ball corresponding position also are provided with annular holddown groove.
Best, also be connected with slipmat 28 at handle 23 of the present invention with the contact jaw that screws end cap 22, this slipmat 28 can be selected the medical ptfe material, screws and to loosen operation easier to reduce handle 24 and to screw frictional force between the end cap 22, to make.
When the femoral stem implant procedure, steel ball is arranged in holddown groove, can guarantee to screw end cap and can not deviate from.Hold handle 23, abutment sleeve 25 is snapped in the femoral stem groove, the head of threaded rod 21 is compressed in the abutment sleeve 25 by the top, rotates to screw end cap 22, and drive threaded rod 21 rotates and screws tight with femoral stem, fixes.At this moment, the minor axis of prosthese and handle 23 cross sections is positioned at unified horizontal level, is beneficial to the doctor and observes, and prosthese is squeezed in the patient body smoothly.
When throwing off operation, hold handle 23, and keep the state that offsets of abutment sleeve 25 and femoral stem groove, screw end cap 22, under the anti-turning effort power of abutment sleeve 25, femoral stem and threaded rod are thrown off.
When needing replacing or cleaning threaded rod 21, with instrument threaded rod 21 is headed in the abutment sleeve 25, when the resilience groove was pushed up the steel ball place, steel ball broke away from holddown groove and springs in the resilience groove, therefore, can be with threaded rod 21, rotation end cap 22 and connecting cylinder 27 from handle 23 interior dismountings.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, any those skilled in the art, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents that can utilize above-mentioned announcement, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. a device for holding hip joint femoral stem is characterized in that, comprises threaded rod, screws end cap, handle and the handle of living, wherein
The threaded rod head is provided with the screw thread that is complementary with femoral stem;
Screwing end cap is connected with the tail end of threaded rod;
The rotatable threaded rod back periphery that is placed in of handle;
Live vertically being fixed on the handle;
Described device for holding hip joint femoral stem also comprises connecting cylinder, between handle and threaded rod, wherein
The fixture block diameter of threaded rod is greater than body of rod diameter, and fixture block is being provided with the resilience groove near body of rod place;
The shaft section of connecting cylinder is U-shaped, the U-shaped mouth with screw end cap and be fixedly connected with, be provided with the opening suitable with threaded rod body of rod diameter at the bottom of the U-shaped, the body of rod of threaded rod passes from this opening, spring and fixture block are placed in the connecting cylinder, and be provided with aperture in connecting cylinder one side and corresponding position, fixture block position, and being embedded with steel ball in the aperture, the distance between steel ball and the resilience groove leans out the distance of abutment sleeve greater than threaded rod;
Handle inwall and steel ball corresponding position are provided with annular holddown groove.
2. device for holding hip joint femoral stem according to claim 1 characterized by further comprising abutment sleeve and spring, wherein
Abutment sleeve is fixedly connected with handle, and it is anterior peripheral to be placed in threaded rod, and the threaded rod head leans out abutment sleeve;
The tail end of threaded rod is followed successively by flat structure and fixture block, screws end cap and is provided with the U-shaped groove that mates with flat structure, and the tail end of threaded rod inserts in the U-shaped groove;
Spring is arranged on the flat structure of threaded rod, and an end and fixture block offset, the other end with screw end cap and be fixedly connected with.
3. device for holding hip joint femoral stem according to claim 1 is characterized in that described handle also is being connected with slipmat with the contact jaw that screws end cap.
4. device for holding hip joint femoral stem according to claim 3 is characterized in that the cross section of described handle is for oval.
5. device for holding hip joint femoral stem according to claim 1 is characterized in that the cross section of described handle is for oval.
6. device for holding hip joint femoral stem according to claim 3 is characterized in that described slipmat is the medical ptfe material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910093023 CN102018554B (en) | 2009-09-17 | 2009-09-17 | Femoral hip joint stem holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910093023 CN102018554B (en) | 2009-09-17 | 2009-09-17 | Femoral hip joint stem holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102018554A CN102018554A (en) | 2011-04-20 |
| CN102018554B true CN102018554B (en) | 2013-01-09 |
Family
ID=43860619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910093023 Active CN102018554B (en) | 2009-09-17 | 2009-09-17 | Femoral hip joint stem holder |
Country Status (1)
| Country | Link |
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| CN (1) | CN102018554B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750925A (en) * | 2013-12-27 | 2014-04-30 | 北京爱康宜诚医疗器材股份有限公司 | Universal handle holder |
| CN110678133A (en) * | 2017-05-31 | 2020-01-10 | 纳萨尔·萨迪克 | Threaded joint for supporting and stabilizing the posterior pelvic ring fracture or for stabilizing and strengthening the sacroiliac joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116339A (en) * | 1990-07-11 | 1992-05-26 | Glock Steven R | Acetabular cup installation tool and method of installing an acetabular cup |
| US7004946B2 (en) * | 2002-10-30 | 2006-02-28 | Symmetry Medical, Inc. | Acetabular cup impactor |
| EP1666007A2 (en) * | 2004-12-01 | 2006-06-07 | Benoist Girard Sas | Prosthetic implantation inserter for a flexible acetabular cup |
| CN201533869U (en) * | 2009-09-17 | 2010-07-28 | 北京市春立正达科技开发有限公司 | Device for holding hip joint femoral stem |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9121132D0 (en) * | 1991-10-04 | 1991-11-13 | Johnson & Johnson Orthopaedics | An acetabular cup inserter |
| US20050203539A1 (en) * | 2004-03-08 | 2005-09-15 | Grimm James E. | Navigated stemmed orthopaedic implant inserter |
-
2009
- 2009-09-17 CN CN 200910093023 patent/CN102018554B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116339A (en) * | 1990-07-11 | 1992-05-26 | Glock Steven R | Acetabular cup installation tool and method of installing an acetabular cup |
| US7004946B2 (en) * | 2002-10-30 | 2006-02-28 | Symmetry Medical, Inc. | Acetabular cup impactor |
| EP1666007A2 (en) * | 2004-12-01 | 2006-06-07 | Benoist Girard Sas | Prosthetic implantation inserter for a flexible acetabular cup |
| CN201533869U (en) * | 2009-09-17 | 2010-07-28 | 北京市春立正达科技开发有限公司 | Device for holding hip joint femoral stem |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102018554A (en) | 2011-04-20 |
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