CN102018566B - Metal mortar driver - Google Patents
Metal mortar driver Download PDFInfo
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- CN102018566B CN102018566B CN 200910093022 CN200910093022A CN102018566B CN 102018566 B CN102018566 B CN 102018566B CN 200910093022 CN200910093022 CN 200910093022 CN 200910093022 A CN200910093022 A CN 200910093022A CN 102018566 B CN102018566 B CN 102018566B
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- threaded rod
- handheld division
- metal acetabular
- driver
- screwing
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Abstract
The invention relates to a metal mortar driver which comprises a screwing end cap, a handheld part and a thread rod, wherein the head part of the thread rod is provided with a thread matched with a metal mortar, and the tail end is connected with the screwing end cap; the handheld part is sleeved on the periphery of the thread rod; and the head part of the thread rod extends out of the handheld part. The metal mortar driver has the advantages of reasonable structural design, convenient and quick use, difficult damage to the thread of the metal mortar and convenient cleaning and maintenance and is more beneficial to safely and smoothly finishing operations.
Description
Technical field
The present invention relates to a kind of surgical medical equipment, particularly relate to a kind of metal acetabular driver.
Background technology
See also shown in Figure 1ly, existing metal acetabular driver is made up of end cap 11, handle 12, alignment pin 13, connecting rod 14 and joint 15, is the relation of fixed connection between each parts.During use, whole rotation driver is screwed into and holds metal acetabular; After operation was squeezed in completion, the reverse rotation driver made it to throw off with metal acetabular again.
Above-mentioned metal acetabular driver is squeezed into metal acetabular in patient's body though can assist a physician, and has progressive really; But when reality is used, but find also to have in its structure some shortcomings, the metal acetabular driver can only throw off metal acetabular by the rotation Handheld Division, and relies on the direct conductivity of moment when beating metal acetabular merely; Torsion is too little; Therefore the metal acetabular driver separates with metal acetabular is very difficult, and operate inconvenience, be difficult to guarantee operation efficient, and on the screw thread and the surface of squeezing into, throwing off easy destruction metal acetabular in the operation; Whole structural design also is not easy to clean, thereby fails to reach best result of use.
This shows that above-mentioned existing metal acetabular driver obviously still has inconvenience and defective, and demands urgently further improving in structure and use.How to found a kind of convenient to usely, moment conduction is more reasonable, survivable metal acetabular screw thread and surface, and be convenient to clean, safeguard, at utmost satisfy the metal acetabular driver of the new structure of requirements of operation, real one of the current important improvement target that belongs to.
Summary of the invention
The objective of the invention is to, overcome the defective that existing metal acetabular driver exists, and a kind of metal acetabular driver of new structure is provided; Technical problem to be solved is to make its reasonable in design; Convenient to use, the screw thread of survivable metal acetabular and surface, and be convenient to clean, safeguard; Be more conducive to operation safety, accomplish smoothly, thereby be suitable for practicality more.
The object of the invention and solve its technical problem and adopt following technical scheme to realize.A kind of metal acetabular driver according to the present invention proposes comprises the end cap of screwing, Handheld Division and threaded rod, and wherein: the head of threaded rod is provided with the screw thread with the metal acetabular coupling, and tail end is connected with the end cap of screwing; The Handheld Division is sheathed on the threaded rod periphery, and the head of threaded rod leans out the Handheld Division.
The object of the invention and solve its technical problem and also can adopt following technical measures further to realize.
Aforesaid metal acetabular driver, the tail end of described threaded rod is followed successively by flat structure and fixture block; The end cap of screwing is provided with the U type groove with the flat structure coupling, and the tail end of threaded rod inserts in the U type groove; Also be arranged with spring on the flat structure of threaded rod, an end and the fixture block of spring offset, and the other end is fixedly connected with the end cap of screwing.
Aforesaid metal acetabular driver also comprises threaded rod cover and steel ball, and 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 threaded rod cover is a U-shaped, and the U-shaped mouth is fixedly connected with the end cap of screwing, and is provided with at the bottom of the U-shaped and the suitable opening of threaded rod body of rod diameter, and the body of rod of threaded rod passes from this opening, and spring and fixture block are placed in the threaded rod cover; One side of threaded rod cover, be provided with aperture with corresponding position, fixture block position, steel ball is embedded in the aperture, and the distance between steel ball and the resilience groove leans out the distance of Handheld Division greater than threaded rod; Handheld Division inwall and steel ball corresponding position are provided with annular positioning groove.
Aforesaid metal acetabular driver, described Handheld Division also is being connected with plastic cap near threaded rod head place, and the end of plastic cap and the inner arc of metal acetabular coincide.
Aforesaid metal acetabular driver, described Handheld Division also is being connected with slipmat with the end cap contact jaw of screwing.
Aforesaid metal acetabular driver is interference fit between described plastic cap, slipmat and the Handheld Division.
Aforesaid metal acetabular driver, described plastic cap, slipmat are the medical ptfe material.
The present invention compared with prior art has following tangible advantage and beneficial effect at least:
1, metal acetabular driver of the present invention is simple and reasonable for structure, squeezes into, throws off simple operation;
2, the plastic cap of metal acetabular driver of the present invention design can be protected metal acetabular, makes its screw thread and surface be difficult for being destroyed;
3, the steel ball structural design of metal acetabular driver of the present invention had both guaranteed that threaded rod can in use not throw off the Handheld Division, can pass through simple operations again and extract threaded rod out, was convenient to clean and safeguard;
4, metal acetabular driver of the present invention has been done bigger improvement to prior art, is more suitable for practicality, and is suitable for industry and promotes the use of.
In sum, metal acetabular driver of the present invention, reasonable in design, convenient to use, the screw thread of survivable metal acetabular and surface, and be convenient to clean, safeguard, be more conducive to operation safety, accomplish smoothly.The present invention has above-mentioned plurality of advantages and practical value; No matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect; And more existing metal acetabular driver has outstanding effect, thereby is suitable for practicality more.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of description, and for let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the structural representation of existing metal acetabular driver.
Fig. 2 is the structural representation of metal acetabular driver 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; To its specific embodiment of metal acetabular driver, structure, characteristic and the effect thereof that proposes according to the present invention, specify as after.
See also shown in Figure 2ly, metal acetabular driver of the present invention mainly comprises the end cap 20 of screwing, Handheld Division 30 and threaded rod 40.Preferable, also can comprise spring 41, threaded rod cover 42 and steel ball 43.
Wherein, 30 movable threaded rod 40 peripheries that are sheathed on, Handheld Division, the head of threaded rod 40 leans out Handheld Division 30.Preferable, Handheld Division 30 also can be connected with plastic cap 31 and slipmat 32.Plastic cap 31 is positioned near threaded rod 40 head places, and the inner arc of its end and metal acetabular matches.Slipmat 32 is positioned at Handheld Division 30 and the contact jaw that rotates end cap 20.The all preferred medical ptfe of the material of plastic cap 31 and slipmat 32, and be connected with Handheld Division 30 through interference fit.
The head of threaded rod 40 is provided with the screw thread with the metal acetabular coupling, and tail end is followed successively by flat structure and fixture block.The end cap 20 of screwing is provided with the U type groove with the flat structure coupling, and the tail end of threaded rod 40 inserts in this U type groove, thereby realization is screwed being connected and interlock of end cap 20 and threaded rod 40.
The shaft section of threaded rod cover 42 is a U-shaped, between threaded rod 40 and Handheld Division 30.The U-shaped mouth is fixedly connected with the end cap 20 of screwing, and is provided with at the bottom of the U-shaped and the suitable opening of threaded rod 40 body of rod diameters, and the body of rod of threaded rod 40 passes from this opening.The fixture block diameter of threaded rod 40 is greater than body of rod diameter, and spring and fixture block are placed in the threaded rod cover 42.
During use, steel ball 43 is stuck in the locating slot of Handheld Division 30, and the end cap 20 of screwing can not deviate from Handheld Division 30, and threaded rod 40 can only be done relative rotary motion with Handheld Division 30.Hold Handheld Division 30, plastic cap 31 and metal acetabular are offseted, at this moment, threaded rod 40 is by roof pressure and in the retraction Handheld Division 30.The end cap 20 of screwing promptly drives threaded rod 40 and rotates and screw tight with metal acetabular.In this process, slipmat 32 can reduce frictional force, guarantees that rotating operation is smooth and easy, light, avoids occurring grinding the follow-up disengagement operation of dead influence; 31 of plastic caps bear main pressure, both can make that to squeeze into moment more steady, directly, avoid the damage of metal acetabular surface and screw thread, can utilize its anti-rotational force again and make threaded rod 40 and metal acetabular relative rotation, be screwed into more convenient.
After operation is squeezed in completion, hold Handheld Division 30, and keep the state that offsets of plastic cap 31 and metal acetabular, the reverse rotation end cap 20 of screwing that driver and metal acetabular are easily thrown off, whole operation process convenient, fast.
Finish using; Instrument capable of using promotes from head threaded rod 40 in Handheld Division 30; When steel ball 43 is absorbed in the resilience groove 44; The positioning action of steel ball 43 disengaging Handheld Divisions 30 annular positioning grooves can be extracted with threaded rod 40 end cap 20 of screwing out easily in Handheld Division 30, so that clean and sterilization.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction,, anyly be familiar with the professional and technical personnel though the present invention discloses as above with preferred embodiment; Make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents of above-mentioned announcement capable of using, all still belong in the scope of technical scheme of the present invention.
Claims (6)
1. a metal acetabular driver is characterized in that,
Comprise the end cap of screwing, Handheld Division and threaded rod, wherein:
The head of threaded rod is provided with the screw thread with the metal acetabular coupling, and tail end is connected with the end cap of screwing;
The tail end of described threaded rod is followed successively by flat structure and fixture block;
The end cap of screwing is provided with the U type groove with the flat structure coupling, and the tail end of threaded rod inserts in the U type groove;
Also be arranged with spring on the flat structure of threaded rod, an end and the fixture block of spring offset, and the other end is fixedly connected with the end cap of screwing;
The Handheld Division is sheathed on the threaded rod periphery, and the head of threaded rod leans out the Handheld Division.
2. metal acetabular driver according to claim 1 is characterized in that also comprising threaded rod cover and steel ball, 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 threaded rod cover is a U-shaped, and the U-shaped mouth is fixedly connected with the end cap of screwing, and is provided with at the bottom of the U-shaped and the suitable opening of threaded rod body of rod diameter, and the body of rod of threaded rod passes from this opening, and spring and fixture block are placed in the threaded rod cover;
One side of threaded rod cover, be provided with aperture with corresponding position, fixture block position, steel ball is embedded in the aperture, and the distance between steel ball and the resilience groove leans out the distance of Handheld Division greater than threaded rod;
Handheld Division inwall and steel ball corresponding position are provided with annular positioning groove.
3. according to the described metal acetabular driver of the arbitrary claim of claim 1-2, it is characterized in that described Handheld Division also is being connected with plastic cap near threaded rod head place, the end of plastic cap and the inner arc of metal acetabular coincide.
4. metal acetabular driver according to claim 3 is characterized in that described Handheld Division also is being connected with slipmat with the end cap contact jaw of screwing.
5. metal acetabular driver according to claim 4 is characterized in that being interference fit between described plastic cap, slipmat and the Handheld Division.
6. metal acetabular driver according to claim 5 is characterized in that described plastic cap, slipmat are the medical ptfe material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910093022 CN102018566B (en) | 2009-09-17 | 2009-09-17 | Metal mortar driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910093022 CN102018566B (en) | 2009-09-17 | 2009-09-17 | Metal mortar driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102018566A CN102018566A (en) | 2011-04-20 |
| CN102018566B true CN102018566B (en) | 2012-12-19 |
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ID=43860629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910093022 Active CN102018566B (en) | 2009-09-17 | 2009-09-17 | Metal mortar driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102018566B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839842B (en) * | 2020-07-24 | 2022-10-04 | 北京市春立正达医疗器械股份有限公司 | Surgical instrument for installing acetabular cup |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4716894A (en) * | 1986-08-27 | 1988-01-05 | Zimmer, Inc. | Acetabular cup inserting instrument |
| US5116339A (en) * | 1990-07-11 | 1992-05-26 | Glock Steven R | Acetabular cup installation tool and method of installing an acetabular cup |
| US5484440A (en) * | 1992-11-03 | 1996-01-16 | Zimmer, Inc. | Bone screw and screwdriver |
| CN2217962Y (en) * | 1995-04-13 | 1996-01-24 | 岳胜岩 | Medical screw holding driver |
| CN101304699A (en) * | 2005-08-16 | 2008-11-12 | 新特斯有限责任公司 | Headless compression screw with integrated reduction-compression instrument |
| CN201481469U (en) * | 2009-09-17 | 2010-05-26 | 北京市春立正达科技开发有限公司 | Metal bone driver |
-
2009
- 2009-09-17 CN CN 200910093022 patent/CN102018566B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4716894A (en) * | 1986-08-27 | 1988-01-05 | Zimmer, Inc. | Acetabular cup inserting instrument |
| US5116339A (en) * | 1990-07-11 | 1992-05-26 | Glock Steven R | Acetabular cup installation tool and method of installing an acetabular cup |
| US5484440A (en) * | 1992-11-03 | 1996-01-16 | Zimmer, Inc. | Bone screw and screwdriver |
| CN2217962Y (en) * | 1995-04-13 | 1996-01-24 | 岳胜岩 | Medical screw holding driver |
| CN101304699A (en) * | 2005-08-16 | 2008-11-12 | 新特斯有限责任公司 | Headless compression screw with integrated reduction-compression instrument |
| CN201481469U (en) * | 2009-09-17 | 2010-05-26 | 北京市春立正达科技开发有限公司 | Metal bone driver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102018566A (en) | 2011-04-20 |
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