CN104799921A - Holding driver - Google Patents
Holding driver Download PDFInfo
- Publication number
- CN104799921A CN104799921A CN201410038203.XA CN201410038203A CN104799921A CN 104799921 A CN104799921 A CN 104799921A CN 201410038203 A CN201410038203 A CN 201410038203A CN 104799921 A CN104799921 A CN 104799921A
- Authority
- CN
- China
- Prior art keywords
- central shaft
- knob
- driver
- holding
- shell
- 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.)
- Granted
Links
- 239000011148 porous material Substances 0.000 claims description 25
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 description 43
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 210000001624 hip Anatomy 0.000 description 3
- 210000004394 hip joint Anatomy 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011882 arthroplasty Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- 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
-
- 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
- A61F2/461—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 knees
Landscapes
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physical Education & Sports Medicine (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides a holding driver. The holding driver comprises a tubular shell with a longitudinal central hole and a central shaft in clearance fit with the central hole, wherein the front end part of the central shaft is provided with external threads; the rear end part of the shell is provided with a striking part; the shell is provided with a run-through window. The holding driver also comprises an anti-loose member for preventing the central shaft from loosening and a knob accommodated in the window. The rear end part of the central shaft is provided with a matching part which is in interference fit with the knob and can drive the central shaft to rotate with the knob. By using the holding driver, the external threads on the front end part of the central shaft and the internal threads of a femoral prothesis stem are not easily damaged, so that the damage rates of the holding driver and the femoral prothesis stem are reduced and the cost is saved.
Description
Technical field
The present invention relates to medical apparatus and instruments, particularly one is held and is got driver.
Background technology
Hip prosthesis is for replacing the hip joint of human body, and operation process comprises: to be inserted by type femoral bone end prosthesis in femoral bone cavitas medullaris and to install bulb; And the mortar cup be installed in acetabular bone and liner coordinate, and realize the function of hip joint.Wherein needing when installing type femoral bone end prosthesis to coordinate apparatus, completing to hold to get type femoral bone end prosthesis and impact type femoral bone end prosthesis top and type femoral bone end prosthesis being inserted completely pulp cavity two operation.
Traditional holding is got driver and is comprised elongated tubular shell and be located at the central shaft in shell, and the front end of central shaft is provided with the external screw thread with the screw-internal thread fit on type femoral bone end prosthesis, and rear end is stretched out shell and connected a knob.By rotary knob, central shaft front end external screw thread and type femoral bone end prosthesis upper internal threaded are linked together; Again by impact knob, type femoral bone end prosthesis is inserted in pulp cavity completely.
But use this traditional holding to get driver, could impact after needing central shaft and type femoral bone end prosthesis to screw completely when impacting, otherwise the impact force being passed to type femoral bone end prosthesis by central shaft will cause damage to central shaft front end external screw thread and type femoral bone end prosthesis female thread, shorten and hold the service life of getting driver, and prosthese is scrapped.And hold flimsy problem in order to the external screw thread solving central shaft front end, two steps are divided into realize by holding the function of getting driver in prior art, thus need to use to hold simultaneously and get device and pounder two pieces apparatus, this can increase the gross weight of apparatus, and many steps also can increase the time of operation.
Summary of the invention
The object of the invention is to the defect overcoming above-mentioned prior art, provide not fragile central shaft external screw thread and holding of type femoral bone end prosthesis female thread in a kind of use to get driver.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
According to an aspect of the present invention, the invention provides one and hold and get driver, comprise there is longitudinal medium pore tube-like envelope, matched in clearance is in the central shaft of described medium pore.The leading section of described central shaft has external screw thread.Wherein, the rearward end of described shell is impact portion, and described shell is provided with through window.Describedly hold the turn-knob got driver and also comprise the anti-falling piece that prevents described central shaft from deviating from and be placed in described window.The rearward end of described central shaft is provided with matched in clearance in described turn-knob can make the auxiliary section that described central shaft rotates with described turn-knob.
According to an embodiment of the present invention, the length of the auxiliary section of described central shaft is greater than the length of described knob, and can relatively move forward and backward by knob.
According to an embodiment of the present invention, described shell is provided with the observation window of lateral direction penetrating, and described observation window is communicated with described medium pore, and between described window and described impact portion.
According to an embodiment of the present invention, described central axis has the extension extending back described turn-knob.Described anti-falling piece comprises the plug being located at described observation window and the cylindrical portion being connected to described plug.Described cylindrical portion is placed in described medium pore and has female thread, and described extension has the external screw thread coordinated with described cylindrical portion.
According to an embodiment of the present invention, described turn-knob has polygon endoporus, and the shape of described auxiliary section is the polygon matched with described polygon internal via shape.
According to an embodiment of the present invention, described in hold and get driver and also comprise grip part, described grip part is formed at described shell, and between described impact portion and described window, described grip part is located at by described observation window.
According to an embodiment of the present invention, described central shaft is provided with the end difference that diameter is greater than described auxiliary section diameter before described turn-knob.
According to an embodiment of the present invention, the medium pore of described shell has the block platform with described end difference front end face cooperating.Under the auxiliary section of described turn-knob and described central shaft mated condition, along described described central shaft longitudinally, the distance between described end difference and described block platform is greater than the length sum of described window and described extension.
According to an embodiment of the present invention, described impact portion is dish type striking head.
According to an embodiment of the present invention, described shell front end portion is provided with boss.
As shown from the above technical solution, advantage of the present invention and good effect are:
Of the present invention holding gets driver, completes to hold and gets type femoral bone end prosthesis action, by shell, impact force is passed to type femoral bone end prosthesis, and central shaft can move forward and backward relative to shell by rotation turn-knob band central shaft.Therefore in the present invention, holding of type femoral bone end prosthesis is got to action and be relatively independent non-interference to the hammer action of type femoral bone end prosthesis.Even if therefore hold get action complete after type femoral bone end prosthesis hold to get and do not put in place, namely type femoral bone end prosthesis does not abut with shell front end portion and can not damage the external screw thread of central shaft leading section and the female thread of type femoral bone end prosthesis yet, thus reduce the spoilage of holding and getting driver and type femoral bone end prosthesis, save cost.
Accompanying drawing explanation
Fig. 1 is that the present invention holds the structural representation getting driver first embodiment;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the A-A profile of Fig. 2;
Fig. 4 is part B enlarged drawing in Fig. 3;
Fig. 5 is C magnified partial view central shaft figure in Fig. 1;
Fig. 6 is that the present invention holds the center spindle structure schematic diagram got in driver first embodiment;
Fig. 7 is that the present invention holds the structural representation getting driver second embodiment;
Fig. 8 is the D-D profile of Fig. 7;
Fig. 9 is E magnified partial view in Fig. 8;
Figure 10 is that the present invention holds the center spindle structure schematic diagram got in driver second embodiment.
Detailed description of the invention
The exemplary embodiment embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes on different embodiments, it neither departs from the scope of the present invention, and explanation wherein and to be shown in be use when explain in essence, and be not used to limit the present invention.Hereinafter said " front " is the right of figure in the accompanying drawings, and " afterwards " is the left side of figure in the accompanying drawings.
Embodiment 1
As shown in Figures 1 to 6, the present invention holds and gets driver, comprises tube-like envelope 1, central shaft 2, turn-knob 3 and anti-falling piece 4.
The metal material that tube-like envelope 1 is generally rigidity makes, and has longitudinal medium pore 11, and arranges the window 12 of lateral direction penetrating in shell 1 centre position.The rearward end of shell 1 is impact portion, preferably, impact portion is designed to dish type striking head 13, to increase hitting area.Shell 1 is formed with grip part 14 between striking head 13 and window 12, and grip part 14 can be designed to facilitate hand-held shape, and can arrange limiting section at rear portion, grip part 14, such as position limiting convex ring 141 etc.Further, conveniently observe and alleviate apparatus weight, the observation window 15 of lateral direction penetrating is set in grip part 14 central authorities.Escape groove 17 is also provided with, in use avoiding cover attack femoral bone tuberosity in tube-like envelope front portion.
Turn-knob 3 can be cylindrical, preferably prismatic, is beneficial to screw.Turn-knob 3 has polygon endoporus (not shown), as hexagonal internal bore or pentagon endoporus etc.Turn-knob 3 is placed in window 12, and the centrage of the polygon endoporus of turn-knob 3 overlaps with the centrage of the medium pore 11 of shell 1.The left and right surfaces of shell 1 is protruded in the one opposite face such as left and right side of turn-knob 3, makes it rotate to facilitate manual force to turn-knob 3.There is gap before turn-knob 3 or below and between the front side wall of window 12 or rear wall, to make turn-knob 3 freely screw, do not interfere by window sidewall.
Central shaft 2 matched in clearance is in medium pore 11, and shell 1 leading section is stretched out in the leading section of central shaft 2, and rearward end stretches into window 12.The leading section of central shaft 2 has external screw thread 21, and this external screw thread 21 can with the screw-internal thread fit on type femoral bone end prosthesis.
The cross sectional shape of the auxiliary section 24 of central shaft 2 rearward end is spline shape, namely there is the polygon auxiliary section 24 matched with the polygon internal via shape of the interior turn-knob 3 installed of window 12, therefore the auxiliary section 24 of central shaft 2 rearward end is connected to turn-knob 3, and can rotate with the rotation of turn-knob 3, the length of the auxiliary section 24 of central shaft 2 rearward end is greater than the length of knob 3, and both matched in clearance, when central shaft 2 is subject to power backward, rearward end can move a certain distance backward relative to knob 3.
Central shaft 2 is provided with the end difference 23 that a diameter is greater than auxiliary section 24 diameter, is positioned at before turn-knob 3, and the medium pore 11 of shell 1 has the block platform 111 with end difference 23 front end face 231 cooperating.Under the auxiliary section 24 of turn-knob 3 and central shaft 2 mated condition, along central shaft 2 longitudinally, the distance between end difference 23 and block platform 111 is greater than the length sum of window 12 and extension 22.The rear end face 232 of end difference 23 defines the anticreep convex shoulder that can be connected to described turn-knob 3.
The diameter of the end difference 23 on central shaft 2 is greater than the diameter of auxiliary section 24, and is greater than the interior diameter of knob 3, deviates from from shell 1 rear end for preventing central shaft 2.
The anti-falling piece 4 be connected with the extension 22 of central shaft 2 is set in observation window 15; prevent central shaft 2 from excessively being deviate from forward by medium pore 11; keep the auxiliary section 24 of central shaft 2 to be in mated condition with turn-knob 3 always; and can not to stretch out shell 1 long in the front end of central shaft 2, the front end of central shaft 2 is played a protective role.
The structure of anti-falling piece 4 can be varied, such as anti-falling piece 4 comprises plug 41 and cylindrical portion 42, cylindrical portion 42 is connected to plug 41 or one-body molded with plug 41, cylindrical portion 42 can be matched with medium pore 11, plug 41 exposes to observation window 15, diameter is greater than the diameter of medium pore 11, is connected to the front face of observation window 15 when central shaft 2 reaches front side.Cylindrical portion 42 has female thread, and central shaft 2 has the extension 22 extending back turn-knob 3, and extension 22 has external screw thread, and extension 22 is connected by threaded engagement with cylindrical portion 42.Anti-falling piece is designed to the structure such as bayonet lock, snap ring, and simultaneously extension is designed to corresponding fit structure and is all fine, as long as can prevent central shaft 2 from excessively being deviate from forward by medium pore 11.
In other embodiments, shell 1 leading section is provided with boss 16, and the concave shape on the type femoral bone end prosthesis in the shape of this boss 16 and part model matches.
During assembling, central shaft 2 is inserted medium pore 11 by the one end namely from the rearward end of shell 1 with striking head 13, until end difference 23 contacts with block platform 111, now, the extension 22 of central shaft 2 is before window 12; Turn-knob 3 is positioned in window 12, the centrage of the polygon endoporus of turn-knob 3 is overlapped with the centrage of medium pore 11; Promote central shaft 2 rearwards again, make the polygon auxiliary section 24 of central shaft 2 rearward end and the polygon inner hole of turn-knob 3; The last extension 22 by threaded engagement, anti-falling piece 4 being connected to central shaft 2 by observation window 15.
Embodiment 2
As shown in Figure 7 to 10, the present invention holds and gets driver second embodiment, comprises tube-like envelope 1, central shaft 2, turn-knob 3 and anti-falling piece 4.
Tube-like envelope 1 front end has longitudinal medium pore 11, and is provided with window 12 as described in example 1 above, dish type striking head 13, grip part 14, observation window 15, turn-knob 3.
Central shaft 2 matched in clearance is in medium pore 11, and shell 1 leading section is stretched out in the leading section of central shaft 2, and rearward end stretches into window 12.The leading section of central shaft 2 has external screw thread 21, and this external screw thread 21 can with the screw-internal thread fit on type femoral bone end prosthesis.
The auxiliary section 24 of central shaft 2 rearward end coordinates with knob 3 as described in example 1 above.
Central shaft 2 is provided with the end difference 23 that a diameter is greater than auxiliary section 24 diameter, is positioned at before turn-knob 3, before end difference extends to, is connected with external thread part 21.
Equally; the anti-falling piece 4 be connected with central shaft 2 is set in observation window 15; anti-falling piece 4 structure as described in example 1 above; prevent central shaft 2 from excessively being deviate from forward by medium pore 11; keep the auxiliary section 24 of central shaft 2 to be in mated condition with knob 3 always; and can not to stretch out shell 1 long in the front end of central shaft 2, the front end of central shaft 2 is played a protective role.
The diameter of the end difference 23 on central shaft 2 is greater than the diameter of auxiliary section 24, and is greater than the interior diameter of knob 3, deviates from from shell 1 rear end for preventing central shaft 2.
Equally, in other embodiments, shell 1 leading section is provided with boss 16, and the concave shape on the type femoral bone end prosthesis in the shape of this boss 16 and part model matches.
During assembling, first turn-knob 3 is positioned in window 12, the centrage of the polygon endoporus of turn-knob 3 is overlapped with the centrage of medium pore 11, then from the front end of shell 1, central shaft 2 is inserted medium pore 11, make the polygon auxiliary section 24 of central shaft 2 rearward end and the polygon inner hole of turn-knob 3; The last extension 22 by threaded engagement, anti-falling piece 4 being connected to central shaft 2 by observation window 15.
During use, hand-held grip part 14, screws turn-knob 3, rotary middle spindle 2, makes the screw-internal thread fit on the external screw thread of central shaft 2 leading section and type femoral bone end prosthesis; Continue to screw turn-knob 3, until the front end face that type femoral bone end prosthesis abuts shell 1 stops screwing, complete and action is got to holding of type femoral bone end prosthesis.Then, knock the striking head 13 of shell 1 rearward end, percussion power is passed to its leading section by striking head 13 along shell 1, and is passed to type femoral bone end prosthesis further, thus type femoral bone end prosthesis is inserted pulp cavity, completes impact insert action.When type femoral bone end prosthesis is provided with depression, shell 1 leading section can be coordinated to get driver with holding of boss 16.
In the present invention, held and get type femoral bone end prosthesis, transmit percussion power by shell 1 by central shaft 2, central shaft 2 can move forward and backward relative to shell 1.That is, of the present invention holding is got driver and is got action and stroke is separate to holding of type femoral bone end prosthesis, and the two is non-interference.Therefore, hold to get when type femoral bone end prosthesis and do not put in place, namely under type femoral bone end prosthesis does not abut situation with shell 1 leading section, when knocking the striking head 13 of shell 1, shell 1 can relative to central shaft 2 (to type femoral bone end prosthesis direction) movement forward, until abut with type femoral bone end prosthesis, percussion power is made still to be directly delivered to type femoral bone end prosthesis by shell 1, central shaft 2 is drawn back under retroaction, guarantee that the threaded portion 21 of central shaft 2 front end does not stress, thus the external screw thread of central shaft 2 leading section and the female thread of type femoral bone end prosthesis can not be damaged, therefore use the present invention to hold and get driver, can prevent from holding because of bone stock handle getting not in place and damaging screw thread, thus reduce the spoilage of holding and getting driver and type femoral bone end prosthesis, save cost.
The present invention not only can be used for holding getting and squeezes into hip joint stalk prosthese, can also be used for holding getting reamer for hip arthroplasty.Further, this apparatus can also be used to complete holding to get and squeezing into of hip cotyle cup and the die trial of mortar cup, hold the mode of getting driver knob 3 be connected holding the central shaft 2 nose threads part 21 of getting driver with the threaded portion of mortar cup die trial (or prosthese) by screwing, put into the urgent compacting of mortar nest, the effect that can not damage central shaft 2 in strike process can be played equally.
Although describe the present invention with reference to several exemplary embodiment, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Spirit or the essence of invention is not departed from because the present invention can specifically implement in a variety of forms, so be to be understood that, above-mentioned embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in claim of enclosing, therefore fall into whole change in claim or its equivalent scope and remodeling and all should be claim of enclosing and contained.
Claims (10)
1. hold and get driver for one kind, comprise the tube-like envelope (1) with longitudinal medium pore (11), matched in clearance is in the central shaft (2) of described medium pore (11), the leading section of described central shaft (2) has external screw thread (21), it is characterized in that, the rearward end of described shell (1) is impact portion, described shell (1) is provided with through window (12), described holding is got driver and is also comprised the anti-falling piece (4) preventing described central shaft (2) from deviating from and the turn-knob (3) being placed in described window (12), the rearward end of described central shaft (2) is provided with matched in clearance in described turn-knob (3) can make the auxiliary section (24) that described central shaft (2) rotates with described turn-knob (3).
2. according to claim 1 holding gets driver, it is characterized in that, the length of the auxiliary section (24) of described central shaft (2) is greater than the length of described knob (3), and can relatively move forward and backward by knob (3).
3. according to claim 1 holding gets driver, it is characterized in that, described shell (1) is provided with the observation window (15) of lateral direction penetrating, and described observation window (15) is communicated with described medium pore (11), and is positioned between described window (12) and described impact portion.
4. according to claim 1 holding gets driver, it is characterized in that, described central shaft (2) has the extension (22) extending back described turn-knob (3), described anti-falling piece (4) comprises the plug (41) being located at described observation window (15) and the cylindrical portion (42) being connected to described plug (41), described cylindrical portion (42) is placed in described medium pore (11) and has female thread, and described extension (22) has the external screw thread coordinated with described cylindrical portion (42).
5. according to claim 1 holding gets driver, it is characterized in that, described turn-knob (3) has polygon endoporus, and the shape of described auxiliary section (24) is the polygon matched with described polygon internal via shape.
6. according to claim 3 holding gets driver, it is characterized in that, described holding is got driver and is also comprised grip part (14), described grip part (14) is formed at described shell (1), and being positioned between described impact portion and described window (12), described grip part (14) is located at by described observation window (15).
7. according to claim 1 holding gets driver, it is characterized in that, the upper described turn-knob (3) of described central shaft (2) is provided with the end difference (23) that diameter is greater than described auxiliary section (24) diameter above.
8. according to claim 7 holding gets driver, it is characterized in that, the medium pore (11) of described shell (1) has the block platform (111) with described end difference (23) front end face (231) cooperating, under the auxiliary section (24) of described turn-knob (3) and described central shaft (2) mated condition, longitudinal along described described central shaft (2), the distance between described end difference (23) and described block platform (111) is greater than the length sum of described window (12) and described extension (22).
9. according to claim 1 holding gets driver, it is characterized in that, described impact portion is dish type striking head (13).
10. holding according to any one of claim 1 ~ 9 gets driver, it is characterized in that, described shell (1) leading section is provided with boss (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038203.XA CN104799921B (en) | 2014-01-26 | 2014-01-26 | Capture impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038203.XA CN104799921B (en) | 2014-01-26 | 2014-01-26 | Capture impactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104799921A true CN104799921A (en) | 2015-07-29 |
| CN104799921B CN104799921B (en) | 2018-11-30 |
Family
ID=53685431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410038203.XA Active CN104799921B (en) | 2014-01-26 | 2014-01-26 | Capture impactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104799921B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107582145A (en) * | 2017-02-04 | 2018-01-16 | 芜湖商环科技有限公司 | A kind of built-in Foreskin loop cutter positioner |
| CN111150481A (en) * | 2020-01-17 | 2020-05-15 | 北京市春立正达医疗器械股份有限公司 | Acetabulum outer cup installer |
| WO2023082988A1 (en) * | 2021-11-10 | 2023-05-19 | 北京市春立正达医疗器械股份有限公司 | Easy mounting-type iliac wing filling block |
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|---|---|---|---|---|
| EP1438936A1 (en) * | 2003-01-17 | 2004-07-21 | Tornier | Ancillary for implanting a prosthetic acetabular cup for a hip prosthesis |
| FR2863869A1 (en) * | 2003-12-23 | 2005-06-24 | Ct Pulse Orthopedics Ltd | Impactor for producing percussion on prosthetic acetabulum, has main body integrated to control rod, where percussion function of impactor is made distinct from its adjusting function |
| CN101035475A (en) * | 2004-04-06 | 2007-09-12 | 新特斯有限责任公司 | Adjustable tool for cannulated fasteners |
| CN101507664A (en) * | 2007-10-10 | 2009-08-19 | 德普伊产品公司 | Modular stem inserter |
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|---|---|---|---|---|
| CN107582145A (en) * | 2017-02-04 | 2018-01-16 | 芜湖商环科技有限公司 | A kind of built-in Foreskin loop cutter positioner |
| CN107582145B (en) * | 2017-02-04 | 2023-12-15 | 芜湖圣大医疗器械技术股份有限公司 | Built-in circumcision ware positioner |
| CN111150481A (en) * | 2020-01-17 | 2020-05-15 | 北京市春立正达医疗器械股份有限公司 | Acetabulum outer cup installer |
| WO2023082988A1 (en) * | 2021-11-10 | 2023-05-19 | 北京市春立正达医疗器械股份有限公司 | Easy mounting-type iliac wing filling block |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104799921B (en) | 2018-11-30 |
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Inventor after: Ding Yubao Inventor after: Xu Shufu Inventor before: Ding Yubao |
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Effective date of registration: 20240407 Address after: G356, 3rd floor, building 1, yard 9, CHENGWAN street, Haidian District, Beijing 100094 Patentee after: Beijing natong Medical Technology Holding Co.,Ltd. Country or region after: China Address before: 100082 room 8-2-1201, ocean view area 15, Desheng West Street, Haidian District, Beijing. Patentee before: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. Country or region before: China |