CN104799921B - Capture impactor - Google Patents
Capture impactor Download PDFInfo
- Publication number
- CN104799921B CN104799921B CN201410038203.XA CN201410038203A CN104799921B CN 104799921 B CN104799921 B CN 104799921B CN 201410038203 A CN201410038203 A CN 201410038203A CN 104799921 B CN104799921 B CN 104799921B
- Authority
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- China
- Prior art keywords
- central axis
- knob
- impactor
- shell
- window
- 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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- 239000011148 porous material Substances 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 abstract description 42
- 238000010586 diagram Methods 0.000 description 5
- 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
- 230000001681 protective effect Effects 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 238000011882 arthroplasty Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000001356 surgical procedure 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 present invention provides one kind to capture impactor, including with longitudinally central hole tube-like envelope, clearance fit is in the central axis of medium pore.The front end of central axis has external screw thread.Wherein, the rear end of shell is impact portion, and shell is equipped with the window of perforation.Capturing impactor further includes the anti-falling piece for preventing central axis from deviating from and the knob for being placed in window.The rear end of central axis, which is equipped with clearance fit, in knob and can make central axis with the auxiliary section of knob.Impactor is captured using the present invention, it is not easy to be damaged the external screw thread of central axis front end and the internal screw thread of type femoral bone end prosthesis to reduce the spoilage for capturing impactor and type femoral bone end prosthesis and saved cost.
Description
Technical field
The present invention relates to medical instrument, in particular to one kind captures impactor.
Background technique
Hip prosthesis is used to replace the hip joint of human body, and surgical procedure includes：Type femoral bone end prosthesis is inserted into femoral bone cavitas medullaris
It is interior and bulb is installed；And it is installed to the mortar cup in acetabular bone and liner cooperation, realize the function of hip joint.Wherein in installation femur
It needs to cooperate instrument when handle prosthese, completion captures type femoral bone end prosthesis and impact type femoral bone end prosthesis top is complete by type femoral bone end prosthesis
Pulp cavity two operations of insertion.
Traditional impactor that captures includes elongated tubular shell and the central axis in shell, the front end of central axis be equipped with
The external screw thread of screw-internal thread fit on type femoral bone end prosthesis, rear end stretch out shell and connect a knob.By rotating knob for center
Axis front end external screw thread and type femoral bone end prosthesis upper internal threaded link together；Again by impact knob, keep type femoral bone end prosthesis complete
It is inserted into pulp cavity.
But using it is this it is traditional capture impactor, after needing central axis and type femoral bone end prosthesis to screw completely in impact
It could strike, it otherwise will be to central axis front end external screw thread and femoral stem by the impact force that central axis is transferred to type femoral bone end prosthesis
Prosthese internal screw thread damages, and shortens the service life for capturing impactor, and scrap prosthese.And in order to solve central axis before
The function of capturing impactor is divided into two steps in the prior art and realized by the problem of external screw thread at end is easily damaged, to need same
When using capturing device and pounder two pieces instrument, this will increase the total weight of instrument, and a more step also will increase operation
Time.
Summary of the invention
It is an object of the invention to overcome the defect of the above-mentioned prior art, provides and be hardly damaged outside central axis in a kind of use
Screw thread and type femoral bone end prosthesis internal screw thread capture impactor.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
According to an aspect of the present invention, the present invention provides one kind and captures impactor, including the pipe with longitudinally central hole
Shape shell, clearance fit are in the central axis of the medium pore.The front end of the central axis has external screw thread.Wherein, described outer
The rear end of shell is impact portion, and the shell is equipped with the window of perforation.The impactor that captures further includes preventing the center
The anti-falling piece of axis abjection and the knob for being placed in the window.The rear end of the central axis is equipped with clearance fit in the knob
And the central axis can be made with the auxiliary section of the knob.
According to an embodiment of the present invention, the length of the auxiliary section of the central axis is greater than the length of the knob, and
It can opposite knob back-and-forth motion.
According to an embodiment of the present invention, the shell is equipped with the observation window of lateral direction penetrating, the observation window and institute
Medium pore connection is stated, and between the window and the impact portion.
According to an embodiment of the present invention, the central axis has the extension for extending back the knob.It is described
Anti-falling piece includes the plug for being set to the observation window and the cylindrical portion for being connected to the plug.The cylindrical portion is placed in described
Central aperture simultaneously has internal screw thread, and the extension has the external screw thread cooperated with the cylindrical portion.
According to an embodiment of the present invention, the knob has a polygon inner hole, the shape of the auxiliary section for institute
State the polygon that polygon internal via shape matches.
According to an embodiment of the present invention, the impactor that captures further includes grip part, and the grip part is formed in institute
Shell is stated, and between the impact portion and the window, the observation window is set to the grip part.
According to an embodiment of the present invention, diameter is equipped on the central axis before the knob and is greater than the auxiliary section
The stepped part of diameter.
According to an embodiment of the present invention, the medium pore of the shell has and the stepped part front end face cooperating
Block platform.Under the auxiliary section of the knob and the central axis mated condition, vertical along the central axis
To the distance between the stepped part and the block platform are greater than the sum of the length of the window and the extension.
According to an embodiment of the present invention, the impact portion is dish type striking head.
According to an embodiment of the present invention, the shell front end portion is equipped with boss.
As shown from the above technical solution, the advantages and positive effects of the present invention are：
Of the invention captures impactor, drives central axis completion to capture type femoral bone end prosthesis movement by rotation knob, passes through
Impact force is transferred to type femoral bone end prosthesis by shell, and central axis can be moved forward and backward relative to shell.Therefore in the present invention, to femur
Handle prosthese capture movement and be relatively independent non-interference to the hammer action of type femoral bone end prosthesis.Even if therefore dynamic capturing
Type femoral bone end prosthesis is captured that in place, i.e., type femoral bone end prosthesis, which is not abutted with shell front end portion, will not damage center after the completion of work
The external screw thread of axis front end and the internal screw thread of type femoral bone end prosthesis, to reduce the damage for capturing impactor and type femoral bone end prosthesis
Rate has saved cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the present invention captures impactor first embodiment；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the A-A sectional view of Fig. 2；
Fig. 4 is part B enlarged drawing in Fig. 3；
Fig. 5 is C portion enlarged drawing central axis figure in Fig. 1；
Fig. 6 is the center spindle structure schematic diagram of the invention captured in impactor first embodiment；
Fig. 7 is the structural schematic diagram that the present invention captures impactor second embodiment；
Fig. 8 is the D-D sectional view of Fig. 7；
Fig. 9 is E magnified partial view in Fig. 8；
Figure 10 is the center spindle structure schematic diagram of the invention captured in impactor second embodiment.
Specific embodiment
The exemplary embodiment for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that
The present invention can have various variations in different embodiments, neither depart from the scope of the present invention, and theory therein
Bright and diagram inherently is illustrated as being used, rather than to limit the present invention.Hereinafter described " preceding " is in the accompanying drawings figure
The right, " rear " in the accompanying drawings be figure the left side.
Embodiment 1
As shown in Figures 1 to 6, the present invention captures impactor, including tube-like envelope 1, central axis 2, knob 3 and anti-falling piece 4.
Tube-like envelope 1 is usually the metal material production of rigidity, has longitudinally central hole 11, and in 1 middle position of shell
The window 12 of lateral direction penetrating is set.The rear end of shell 1 is impact portion, it is preferable that impact portion is designed to dish type striking head 13,
To increase hitting area.Grip part 14 is formed on shell 1 between striking head 13 and window 12, grip part 14 can the side of being designed to
Just hand-held shape, and limiting section, such as position limiting convex ring 141 etc. can be set at 14 rear portion of grip part.Further, for side
Just instrument weight is observed and mitigates, in the observation window 15 of 14 center setting lateral direction penetrating of grip part.Tube-like envelope front also
Equipped with escape groove 17, for avoiding cover attack femoral bone tuberosity in use.
Knob 3 can be cylinder, preferably prismatic, in favor of screwing.Knob 3 has polygon inner hole (in figure not
Show), such as hexagonal internal bore or pentagon inner hole.Knob 3 is placed in window 12, and in the polygon inner hole of knob 3
Heart line is overlapped with the center line of the medium pore 11 of shell 1.One opposite face of a knob 3 such as left side for left and right side protrusion shell 1,
Right surface, to facilitate, applying pressure to knob 3 makes its rotation manually.The above or below of knob 3 and the front side wall or rear side of window 12
There is gap between wall, so that knob 3 can be screwed freely, do not interfered by window side wall.
2 clearance fit of central axis stretches out 1 front end of shell in medium pore 11, the front end of central axis 2, and window is protruded into rear end
Mouth 12.The front end of central axis 2 has external screw thread 21, which can be with the screw-internal thread fit on type femoral bone end prosthesis.
The cross sectional shape of the auxiliary section 24 of 2 rear end of central axis is spline shape, that is, is had and the knob 3 installed in window 12
The polygon auxiliary section 24 that matches of polygon internal via shape, therefore the auxiliary section 24 of 2 rear end of central axis is connected to knob
3, and can be rotated with the rotation of knob 3, the length of the auxiliary section 24 of 2 rear end of central axis is greater than the length of knob 3, and the two
Clearance fit, when central axis 2 is by power backward, rear end can move backward certain distance relative to knob 3.
Central axis 2 is equipped with the stepped part 23 that a diameter is greater than 24 diameter of auxiliary section, is located at before knob 3, in shell 1
Central aperture 11 has the block platform 111 with 23 front end face of stepped part, 231 cooperating.The auxiliary section 24 of knob 3 and central axis 2
Under mated condition, along central axis 2 it is longitudinal, the distance between stepped part 23 and block platform 111 are greater than window 12 and extension
The sum of the length in portion 22.The rear end face 232 of stepped part 23 forms the anticreep convex shoulder that can be connected to the knob 3.
The diameter of stepped part 23 on central axis 2 is greater than the diameter of auxiliary section 24, and is greater than the interior diameter of knob 3, is used for
Prevent central axis 2 from deviating from from 1 rear end of shell.
The anti-falling piece 4 connecting with the extension 22 of central axis 2 is set in observation window 15, prevents central axis 2 by medium pore
11 excessively abjections forward, keep the auxiliary section 24 of central axis 2 and knob 3 to be constantly in mated condition, and the front end of central axis 2 is not
It can stretch out that shell 1 is too long, play a protective role to the front end of central axis 2.
The structure of anti-falling piece 4 can be varied, such as anti-falling piece 4 includes plug 41 and cylindrical portion 42, and cylindrical portion 42 connects
It is connected to plug 41 or is integrally formed with plug 41, cylindrical portion 42 is able to cooperate in medium pore 11, and plug 41 exposes to observation window 15, directly
Diameter is greater than the diameter of medium pore 11, and the front face of observation window 15 is connected to when central axis 2 reaches most front side.Cylindrical portion 42 has
Internal screw thread, central axis 2 have the extension 22 for extending back knob 3, and extension 22 has external screw thread, extension 22 and cylinder
Portion 42 is by being threadedly engaged connection.Anti-falling piece is designed to the structures such as bayonet lock, snap ring, while extension is designed to cooperate knot accordingly
Structure is all possible, as long as central axis 2 can be prevented by the excessively abjection forward of medium pore 11.
In other embodiments, 1 front end of shell is equipped with boss 16, the stock in the shape and some models of the boss 16
Concave shape on bone handle prosthese matches.
When assembling, there is one end of striking head 13 central axis 2 is inserted into medium pore 11 from the rear end of shell 1, until
Stepped part 23 is contacted with block platform 111, at this point, the extension 22 of central axis 2 is in 12 front of window；Knob 3 is placed in window
In 12, it is overlapped the center line of the polygon inner hole of knob 3 with the center line of medium pore 11；Central axis 2 is rearwards pushed again, is made
The polygon auxiliary section 24 of 2 rear end of central axis and the polygon inner hole of knob 3；Finally matched by observation window 15 by screw thread
Close the extension 22 that anti-falling piece 4 is connected to central axis 2.
Embodiment 2
As shown in Figure 7 to 10, the present invention captures impactor second embodiment, including tube-like envelope 1, central axis 2, rotation
Button 3 and anti-falling piece 4.
1 front end of tube-like envelope has longitudinally central hole 11, and is equipped with window 12 as described in example 1 above, dish type impact
First 13, grip part 14, observation window 15, knob 3.
2 clearance fit of central axis stretches out 1 front end of shell in medium pore 11, the front end of central axis 2, and window is protruded into rear end
Mouth 12.The front end of central axis 2 has external screw thread 21, which can be with the screw-internal thread fit on type femoral bone end prosthesis.
The auxiliary section 24 of 2 rear end of central axis is cooperated with knob 3 as described in example 1 above.
Central axis 2 is equipped with the stepped part 23 that a diameter is greater than 24 diameter of auxiliary section, is located at 3 front of knob, stepped part one
Front is directly extended to, is connected with external thread part 21.
Equally, the anti-falling piece 4 connecting with central axis 2 is set in observation window 15, and anti-falling piece 4 is tied as described in example 1 above
Structure prevents central axis 2 by the excessively abjection forward of medium pore 11, the auxiliary section 24 of central axis 2 and knob 3 is kept to be constantly in cooperation
State, and the front end of central axis 2 will not stretch out that shell 1 is too long, play a protective role to the front end of central axis 2.
The diameter of stepped part 23 on central axis 2 is greater than the diameter of auxiliary section 24, and is greater than the interior diameter of knob 3, is used for
Prevent central axis 2 from deviating from from 1 rear end of shell.
Equally, in other embodiments, 1 front end of shell is equipped with boss 16, the shape and some models of the boss 16
In type femoral bone end prosthesis on concave shape match.
When assembling, first knob 3 is placed in window 12, makes the center line and medium pore 11 of the polygon inner hole of knob 3
Center line be overlapped, then from the front end of shell 1 by central axis 2 be inserted into medium pore 11, cooperate the polygon of 2 rear end of central axis
The polygon inner hole in portion 24 and knob 3；Anti-falling piece 4 is finally connected to central axis 2 by being threadedly engaged by observation window 15
Extension 22.
In use, hand-held grip part 14, screws knob 3, rotary middle spindle 2 makes the external screw thread and stock of 2 front end of central axis
Screw-internal thread fit on bone handle prosthese；Knob 3 is persistently screwed, until the front end face stopping that type femoral bone end prosthesis abuts shell 1 screws,
Completion captures movement to type femoral bone end prosthesis.Then, the striking head 13 of 1 rear end of shell is tapped, percussion power is by 13 edge of striking head
Shell 1 be transferred to its front end, and be further transferred to type femoral bone end prosthesis, so that type femoral bone end prosthesis is inserted into pulp cavity, complete
Strike insert action.When type femoral bone end prosthesis is equipped with recess, 1 front end of shell can be cooperated to squeeze into capturing for boss 16
Device.
In the present invention, type femoral bone end prosthesis is captured by central axis 2, by shell 1 transmit percussion power, central axis 2 relative to
Shell 1 can be moved forward and backward.That is, it is of the invention capture impactor to type femoral bone end prosthesis capture movement and stroke is
Mutually independent, the two is non-interference.Therefore, when type femoral bone end prosthesis is captured without in place, i.e., type femoral bone end prosthesis not with shell 1
In the case of front end abuts, when tapping the striking head 13 of shell 1, shell 1 can be relative to central axis 2 forward (to type femoral bone end prosthesis
Direction) it is mobile, it is abutted until with type femoral bone end prosthesis, percussion power is made still to be directly delivered to type femoral bone end prosthesis, central axis by shell 1
2 draw back under reaction, it is ensured that the threaded portion 21 of 2 front end of central axis does not stress, so that 2 front end of central axis will not be damaged
External screw thread and type femoral bone end prosthesis internal screw thread, therefore capture impactor using the present invention, can prevent from capturing because of bone stock handle less than
Position and damage screw thread, to reduce the spoilage for capturing impactor and type femoral bone end prosthesis, saved cost.
The present invention, which cannot be only used for capturing, squeezes into hip joint stalk prosthese, can be also used for capturing reamer for hip arthroplasty.Further,
This instrument completion hip cotyle cup and capturing for mortar cup die trial can also be used to squeeze into, capture impactor knob 3 by screwing
Mode the 2 nose threads part 21 of central axis for capturing impactor is connected with the threaded portion of mortar cup die trial (or prosthese),
It is put into urgent compacting in mortar nest, can equally play the role of that central axis 2 will not be damaged during strike.
Although describing the present invention with reference to several exemplary embodiments, it is to be understood that, term used be explanation and
Term exemplary, and not restrictive.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above embodiment is not limited to any of the foregoing details, and should be defined by the appended claims
The whole change and modification widely explained, therefore fallen into claim or its equivalent scope in spirit and scope all should be with
Attached claim is covered.
Claims (8)
1. one kind captures impactor, including with longitudinally central hole (11) tube-like envelope (1), clearance fit is in the medium pore
(11) front end of central axis (2), the central axis (2) has external screw thread (21), which is characterized in that the shell (1)
Rear end is impact portion, and the shell (1) is equipped with the window (12) of perforation, and the impactor that captures further includes preventing in described
The anti-falling piece (4) of mandrel (2) abjection and the knob (3) for being placed in the window (12), the rear end of the central axis (2) is equipped with
Clearance fit is described to match in the knob (3) and auxiliary section (24) that the central axis (2) can be made to rotate with the knob (3)
Conjunction portion (24) is spline shape.
2. according to claim 1 capture impactor, which is characterized in that the length of the auxiliary section (24) of the central axis (2)
Degree is greater than the length of the knob (3), and can opposite knob (3) back-and-forth motion.
3. according to claim 1 capture impactor, which is characterized in that the shell (1) is equipped with the sight of lateral direction penetrating
Examine window (15), the observation window (15) is connected to the medium pore (11), and be located at the window (12) and the impact portion it
Between.
4. according to claim 3 capture impactor, which is characterized in that the central axis (2), which has, extends back institute
The extension (22) of knob (3) is stated, the anti-falling piece (4) includes being set to the plug (41) of the observation window (15) and being connected to institute
The cylindrical portion (42) of plug (41) is stated, the cylindrical portion (42) is placed in the medium pore (11) and has internal screw thread, described to prolong
Extending portion (22) has the external screw thread cooperated with the cylindrical portion (42).
5. according to claim 3 capture impactor, which is characterized in that the impactor that captures further includes grip part
(14), the grip part (14) is formed in the shell (1), and between the impact portion and the window (12), described
Observation window (15) is set to the grip part (14).
6. according to claim 1 capture impactor, which is characterized in that on the central axis (2) before the knob (3)
It is greater than the stepped part (23) of the auxiliary section (24) diameter equipped with diameter.
7. according to claim 6 capture impactor, which is characterized in that the central axis (2), which has, extends back institute
The extension (22) of knob (3) is stated, the medium pore (11) of the shell (1) has and the stepped part (23) front end face (231)
The block platform (111) of cooperating, in the auxiliary section (24) under mated condition of the knob (3) and the central axis (2),
Longitudinal along the central axis (2), the distance between the stepped part (23) and the block platform (111) are greater than described
The sum of the length of window (12) and the extension (22).
8. according to claim 1 capture impactor, which is characterized in that the impact portion is dish type striking head (13).
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 CN104799921A (en) | 2015-07-29 |
| CN104799921B true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114028034A (en) * | 2021-11-10 | 2022-02-11 | 上海市第六人民医院 | Easily-installed 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 |
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| CN101507664A (en) * | 2007-10-10 | 2009-08-19 | 德普伊产品公司 | Modular stem inserter |
| CN203736288U (en) * | 2014-01-26 | 2014-07-30 | 北京纳通科技集团有限公司 | Holding and impacting-in machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2486020A (en) * | 2010-12-02 | 2012-06-06 | Biomet Uk Healthcare Ltd | Impaction tool for manipulating an implant |
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- 2014-01-26 CN CN201410038203.XA patent/CN104799921B/en active Active
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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 |
| CN203736288U (en) * | 2014-01-26 | 2014-07-30 | 北京纳通科技集团有限公司 | Holding and impacting-in machine |
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| CN104799921A (en) | 2015-07-29 |
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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 |