CN109498224A - A kind of compression type bone-cement type hip prosthesis driver-extractor - Google Patents
A kind of compression type bone-cement type hip prosthesis driver-extractor Download PDFInfo
- Publication number
- CN109498224A CN109498224A CN201811574124.5A CN201811574124A CN109498224A CN 109498224 A CN109498224 A CN 109498224A CN 201811574124 A CN201811574124 A CN 201811574124A CN 109498224 A CN109498224 A CN 109498224A
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- China
- Prior art keywords
- lever
- branch
- driver
- screw rod
- extractor
- 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
- 239000002639 bone cement Substances 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 title claims abstract description 30
- 238000007906 compression Methods 0.000 title claims abstract description 30
- 241000282414 Homo sapiens Species 0.000 claims abstract description 43
- 238000010009 beating Methods 0.000 claims description 29
- 238000003825 pressing Methods 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 17
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 238000002513 implantation Methods 0.000 abstract description 4
- 210000001624 hip Anatomy 0.000 description 23
- 230000000694 effects Effects 0.000 description 5
- 210000004394 hip joint Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000005303 weighing 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
- A61F2/4603—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
-
- 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
- A61F2/32—Joints for the hip
-
- 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
- A61F2002/4629—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 connected to the endoprosthesis or implant via a threaded connection
Abstract
The invention discloses a kind of compression type bone-cement type hip prosthesis driver-extractors, including joint body, the prosthese driver-extractor includes driver-extractor body, lever and hand handle, screw rod and spring leaf are provided on driver-extractor body, hand handle is connected by screw rod with driver-extractor body, and the top of spring leaf is arranged in one end of lever, the other end of lever passes through driver-extractor, and connected with driver-extractor, the top of lever is arranged in hand handle, and hand handle is connected with lever card slot.Driver-extractor body and lever for connect with prosthese, by manipulator and utilize lever principle, prosthese can not only be assembled and be fixed on driver-extractor body and lever, additionally it is possible to discharged prosthese from driver-extractor and lever, in implantation human body.
Description
Technical field
The present invention relates to orthopedic medical device field, specifically a kind of compression type bone-cement type hip prosthesis driver-extractor.
Background technique
The pelvis of human body is connected with thigh through hip joint, and hip joint can cause seriously not once being damaged to people's lives
Just.Many a middle-aged persons are handicapped because of the abrasion of the cartilage surface of hip joint or tearing, treat the hip joint of damage, usually more
Hip prosthesis is changed, when being implanted into hip prosthesis, is needed using hip prosthesis driver-extractor.Existing hip prosthesis, which is beaten, to be pulled out
Device, it is unstable for the clamping of prosthese when being implanted into prosthese, in addition to this, assemble the overlong time of driver-extractor.
Summary of the invention
The purpose of the present invention is to provide a kind of compression type bone-cement type hip prosthesis driver-extractors, to solve the prior art
The problems in.
To achieve the above object, the invention provides the following technical scheme:
A kind of compression type bone-cement type hip prosthesis driver-extractor, the prosthese driver-extractor include driver-extractor body, lever and hand
Being provided with screw rod and spring leaf on driver-extractor body, hand handle connect by screw rod with driver-extractor body, and one end setting of lever is in bullet
The other end of the top of reed, lever passes through driver-extractor, and connects with driver-extractor, and the top of lever, and hand handle is arranged in hand handle
It is connected with lever card slot.
In the above-mentioned technical solutions, driver-extractor body and lever by manipulator's handle and utilize lever for connecting with prosthese
Principle can not only assemble prosthese and be fixed on driver-extractor body and lever, additionally it is possible to release prosthese from driver-extractor and lever
It puts, is implanted into human body.
Preferably, driver-extractor body is the integrated formed structure of strip, and driver-extractor body successively includes beating pull out lid, beat
Dead man and beat plug, beat to pull out lid and beat plug and be separately positioned on the both ends for making dead man, beats to pull out and cover including left side and right side, a left side
Rounding is provided on side, right side is connect with dead man is made, and right side with beat that dead man is vertical, right side and the connection for making dead man
Place is set as the first circular arc concave surface, beats on dead man and pulls out lid and be disposed with fixed section and assembly toward the direction for beating plug along beating
Section, fixing groove is provided on fixed section, fixing groove is rectangle, and screw rod is arranged in fixing groove, is arranged in screw rod and fixing groove
There is the first pin hole being used cooperatively, is provided with the first pin in the first pin hole；Preceding fitting groove is provided on load segment with after
Fitting groove, the bottom of preceding fitting groove are provided with assembly substrate, and one end of spring leaf is fixed in assembly substrate, spring leaf it is another
End vacantly in rear fitting groove, beats plug one end and is provided with lug boss, the shape of lug boss is cylinder.
In the above-mentioned technical solutions, driver-extractor body is an integral molding structure, and is not needed when assembling driver-extractor by driver-extractor
The various components of body are installed, and assembly driver-extractor is more convenient, fast, improve the speed of assembly driver-extractor；Left side and the right side
Side, which constitutes to beat, pulls out lid, rounding is provided on left side, for preventing doctor from using scratch when the driver-extractor body；First circular arc is recessed
Face enhances vertical plane and beats the bonding strength between dead man, pulls out lid and the connection beaten between dead man is firmer so that beating, from
And extend the service life of the driver-extractor body；Screw rod is connected by the first pin with dead man is made, and on the one hand the first pin is used for
It to screw rod and makes dead man and is located by connecting, on the other hand fixing groove is set beating in dead man, i.e., will beat the junction of dead man and screw rod
Setting is being beaten in dead man, and the occupied space of driver-extractor body is saved, but also the surface for making dead man keeps smooth, is convenient for
Doctor more comfortably uses the driver-extractor；It assembles substrate and provides supporting point to spring leaf, spring leaf can be provided to lever
Elastic force and support force, lever can rotate in rear fitting groove using third pin as supporting point, and rear fitting groove is perpendicular
Histogram is through load segment upwards, and such lever could pass through rear fitting groove, and connect with prosthese with cylindrical lug boss
It connects.
Preferably, spring leaf includes fixinig plate, connection sheet and pressing tablet, fixinig plate, connection sheet and pressing tablet according to
Secondary connection, fixinig plate are located in preceding fitting groove, and connection sheet and pressing tablet are located in rear fitting groove, on fixinig plate and assembly substrate
It is provided with the second pin hole being used cooperatively, is provided with the second pin in the second pin hole, the junction of fixinig plate and connection sheet,
Connecting pin and the junction of pressing section are arc plate.
In the above-mentioned technical solutions, fixinig plate is connected with assembly substrate by the second pin, and on the one hand the second pin is used for
It fixes and positions to fixinig plate and assembly substrate, it on the other hand can be by dismantling the second pin when the elastic force deficiency of spring leaf
Replacement spring leaf is carried out, the service life of the driver-extractor body is extended；The junction of fixinig plate and connection sheet, connecting pin and pressing section
Junction be disposed as arc plate, the setting of arc plate can enhance the toughness and intensity of junction, so that junction is not allowed
Frangibility extends the service life of spring leaf；When applying downward pressure to hand handle, lever can be around third pin toward downwards
Direction rotation, to be pressed downward spring leaf, when the pressure applied to hand handle disappears, due to the elastic force of spring leaf, lever meeting
It is rotated around third pin toward upwardly direction, returns to original position；Due to the effect of spring leaf, by exerting a force to hand handle or not
Force, lever around third pin rotation and can keep balancing, to achieve the purpose that assembly and implantation prosthese.
Preferably, the third pin hole being used cooperatively is provided on driver-extractor body and lever, in third pin hole
It is provided with third pin, lever successively includes the first lever branch, the second lever branch, third lever branch, the 4th lever point
Portion and the 5th lever branch, the shape of the first lever branch are obtuse triangle, and the shape of the second lever branch is parallel four side
Shape, the second lever branch are located at the top of pressing tablet, and third lever branch includes upper and lower surfaces, and upper surface is the first circle
Arc convex surface, lower surface are horizontal ramps, and the shape of the 4th lever branch is rectangle, and the shape of the 5th lever branch is parallel four
Side shape is provided with folder hole in the 5th lever branch.
In the above-mentioned technical solutions, a part and the second lever when assembling hand handle and lever, in the first lever branch
A part in branch is located in connecting groove, so that hand handle is applied by connecting groove to lever when applying pressure to hand handle
Plus-pressure, the second lever branch are the longer parallelogram of length, a little strength is only being needed using lever principle in this way,
5th lever branch can just rotated, strength when saving assembly and being implanted into prosthese；Third lever branch for lever and
Driver-extractor body is connected and fixed, and third pin enables lever to rotate with respect to driver-extractor body, the setting of the first arc convex surface
Relative to common plane, the length of third lever branch is shortened, using lever principle, clamps prosthese convenient for folder hole, simultaneously
Also make the driver-extractor body more compact, doctor increases the width of third lever branch convenient for holding the driver-extractor body,
The intensity and toughness for increasing third lever branch, extend the service life of lever；In order to beat plug and be used cooperatively, the 5th
Lever branch is provided parallel to quadrangle, has changed the direction of the 4th lever branch, is acted as by both folder hole and lug boss one
For fixing and being implanted into prosthese, the driver-extractor is enabled to be easier to control prosthese.
Preferably, hand handle includes first connecting portion and second connecting portion, and first connecting portion is provided with connection slot,
Connection slot is passed through for screw rod, and second connecting portion includes upper bottom surface, bottom surface and arc-shaped side, and upper bottom surface is that the second circular arc is recessed
Face is provided with connecting groove on bottom surface, and connecting groove passes through arc-shaped side, and connecting groove includes third circular arc concave surface,
Connecting groove is used cooperatively with the first lever branch and the second lever branch, is set between third circular arc concave surface and the first lever branch
It is equipped with gap.
In the above-mentioned technical solutions, connection slot is connected for hand handle with screw rod, when exerting a force to hand handle, connects slot meeting
It is moved up and down along screw rod；The recessed radian of second circular arc concave surface is consistent with the radian of manpower, meets body mechanics, so that doctor
It is raw more comfortable when using the hand handle；The setting of third circular arc concave surface and the first lever branch are corresponding, third circular arc concave surface
For limiting the position of truck dead lever, gap is provided between third circular arc concave surface and the first lever branch, such setting makes
The junction that the pressure that third circular arc concave surface is subject to is applied to third circular arc concave surface and the first lever branch is obtained, so that first
Stress is larger at the obtuse angle of lever branch, and using lever principle, the torque of the first lever branch is also larger, thus more preferably will be by
Pressure send lever to, manipulator when, lever is sensitiveer, flexible.
Preferably, screw rod successively includes the first screw rod branch and the second screw rod branch, the first pin on screw rod
Hole is located at the first screw rod branch, and the first screw rod branch is quadrangular shape, and the first screw rod branch includes perpendicular and the second circular arc
Convex surface, perpendicular and the second arc convex surface are staggered, the width of the width of the second screw rod branch less than the first screw rod branch；
Nut is provided on screw rod, nut includes the first nut branch and the second nut branch, and the shape of the first nut branch is rotary table
Shape, the shape of the second nut branch are cylinder, and nut interior is provided with screw hole, and the second screw rod branch passes through screw hole, spiral shell
It is provided with the limit hole being used cooperatively on bar and nut, is provided with position-limitting pin in limit hole.
In the above-mentioned technical solutions, the shape of fixing groove is rectangle, the shape of perpendicular and the shape phase of fixing groove
It adapts to, so that screw rod is fixedly connected by the first pin with driver-extractor body, after the second screw rod branch passes through connection slot, by second
The other end of screw rod branch is connected with nut, prevents hand handle from falling off from the second screw rod branch；Second screw rod branch and nut connect
When connecing, the screw hole on nut is packed into the second screw rod branch, the limit hole alignment on the limit hole and nut on screw rod, and
By position-limitting pin hand by being pressed into limit hole, when to be dismantled, position-limitting pin is removed into limit hole, compared to by spiral shell
Mother connects with screw flight, and such connection type more saves the time of assembly driver-extractor.
In preferably, beating plug includes fixed part and sliding part, and multiple positioning grooves are provided on fixed part, sliding
It is provided with location hole in dynamic portion, positioning hole is provided with positioning screw, and positioning screw and positioning groove are used cooperatively.
In the above-mentioned technical solutions, fixed part and sliding part cooperation adjust the prosthese that can adapt to different length, work as prosthese
Length it is longer when, it is sliding part is mobile toward the direction far from fixed part, and positioning screw is screwed into positioning groove, by sliding part
Position between fixed part is fixed, so that beating the length of plug, if the length for beating plug is short, the length of prosthese is long,
The center of gravity of prosthese can beaten outside plug, caused prosthese to be easy to fall from beating on plug, beaten the length of plug and the length phase of prosthese
Adapt to enable to prosthese and beat plug connection it is stronger；When the length of prosthese is shorter, by sliding part toward close to fixed
The direction in portion is mobile, and positioning screw is screwed into positioning groove, and the position between sliding part and fixed part is fixed, is pulled out so that beating
The length of head shortens, if the length for beating plug is longer, prosthese farther out, is not easy to exert a force to prosthese, beats and pull out apart from driver-extractor body
The length of head and the length of prosthese are adapted the plug that is more easier to fight each other and are operated.
Preferably, the side of first connecting portion is provided with limiting groove, and the shape of limiting groove is isosceles trapezoid,
Limiting groove and the second circular arc concave surface are in the same side.
In the above-mentioned technical solutions, the shape of limiting groove and the shape of the first nut branch are adapted, rotary table and isosceles
Trapezoidal to be provided with inclined-plane, when the elastic force due to spring leaf, when lever and hand handle are sprung back, first connecting portion and nut can be touched
Hit, the setting on inclined-plane increases the contact area of first connecting portion and nut, thus reduce first connecting portion and nut by
Impact force so that first connecting portion and nut are less likely to be damaged；Manipulator when, first connecting portion can be in the second screw rod branch
Upper movement, the first nut branch also play the effect of limit, the model that limitation first connecting portion moves in the second screw rod branch
It encloses.
Preferably, the limit hole on screw rod is arranged in the second screw rod branch, and the limit hole setting on nut exists
In second nut branch.
In the above-mentioned technical solutions, limit hole is located at the one end of the second screw rod branch far from the first screw rod branch, the second spiral shell
It may be provided with multiple limit holes in bar branch, to be fixed on nut in the second screw rod branch not according to different size prosthese
Same position.
Preferably, it beats the outer surface of dead man, be provided with rounding in second connecting portion.
In the above-mentioned technical solutions, there is rounding setting in many places on the driver-extractor body, rounding can not only go de-stress, moreover it is possible to
The machining accuracy for enough guaranteeing the driver-extractor body allows doctor more safely and effectively to use the driver-extractor body.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is by beating plug and the 5th lever branch collective effect in prosthese, so that more steady when implantation prosthese
It is fixed.
2, the present invention is by being pressed into spacer pin nail hole for position-limitting pin, so that it is connected and fixed screw rod and nut, it is convenient and efficient,
Save the time.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Fig. 2 is a kind of main view of the driver-extractor body of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Fig. 3 is a kind of top view of the driver-extractor body of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Fig. 4 is a kind of main view of the hand handle of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Fig. 5 is a kind of top view of the hand handle of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Fig. 6 is a kind of main view of the lever of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Fig. 7 is a kind of side view of the lever of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Fig. 8 is a kind of main view of the spring leaf of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Fig. 9 is a kind of top view of the spring leaf of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Figure 10 is a kind of main view of the screw rod of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Figure 11 is a kind of side view of the screw rod of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Figure 12 is a kind of structural schematic diagram for beating plug of compression type bone-cement type hip prosthesis driver-extractor of the present invention；
Figure 13 is a kind of nut structure diagram of compression type bone-cement type hip prosthesis driver-extractor of the present invention.
In figure: 1- driver-extractor body, 2- third pin, 3- lever, 4- hand handle, 5- nut, 6- position-limitting pin, 7- screw rod, 8-
First pin, the second pin of 9-, 10- spring leaf, 11- are beaten pull out lid, the right side 12-, the first pin hole of 13-, 14- before fitting groove,
15- beats dead man, 16- third pin hole, 17- and plays fitting groove, the second pin hole of 20-, 21- assembly after plug, 18- lug boss, 19-
Substrate, 22- fixing groove, the right side 23-, 24- limiting groove, 25- second connecting portion, 26- upper bottom surface, the arc-shaped side 27-,
28- connecting groove, 29- third circular arc concave surface, 30- bottom surface, 31- first connecting portion, 32- connection slot, the first lever of 33- point
Portion, the second lever of 34- branch, the upper surface 35-, 36- third lever branch, the 5th lever branch of 37-, the 4th lever branch of 38-,
The lower surface 39-, 40- pressing tablet, 41- fixinig plate, 42- connection sheet, the first screw rod of 43- branch, the second screw rod of 44- branch, 45- limit
Position hole, 46- perpendicular, the second arc convex surface of 47-, the first nut of 48- branch, the second nut of 49- branch, 50- folder hole, 51-
Sliding part, 52- fixed part, 53- positioning groove, 54- positioning screw.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~13, in the embodiment of the present invention, a kind of compression type bone-cement type hip prosthesis driver-extractor, the vacation
Body driver-extractor includes driver-extractor body 1, lever 3 and hand handle 4, and screw rod 7 and spring leaf 10 are provided on driver-extractor body 1, and hand handle 4 passes through
Screw rod 7 and driver-extractor body 1 connect, and the top of spring leaf 10 is arranged in one end of lever 3, and the other end of lever 3 passes through driver-extractor,
And connected with driver-extractor, the top of lever 3 is arranged in hand handle 4, and hand handle 4 is connected with 3 card slot of lever.
In the above-mentioned technical solutions, driver-extractor body 1 and lever 34 and utilize thick stick by manipulator for connecting with prosthese
Rod principle can not only assemble prosthese and be fixed on driver-extractor body 1 and lever 3, additionally it is possible to by prosthese from driver-extractor and lever 3
Upper release, is put into human body.
Driver-extractor body 1 is the integrated formed structure of strip, and driver-extractor body 1 successively includes beating pull out lid 11, beat 15 and of dead man
Plug 17 is beaten, is beaten and is pulled out lid 11 and beat the both ends that plug 17 is separately positioned on dozen dead man 15, beating and pulling out lid 11 includes left side 23 and the right side
Side 12 is provided with rounding on left side 23, and right side 12 is connect with dead man 15 is made, and right side 12 is vertical with dead man 15 is made,
Right side 12 and the junction for making dead man 15 are set as the first circular arc concave surface, beat on dead man 15 and pull out that lid 11 is past to beat plug 17 along beating
Direction be disposed with fixed section and load segment, be provided with fixing groove 22 on fixed section, fixing groove 22 is rectangle, screw rod 7
It is arranged in fixing groove 22, is provided with the first pin hole 13 being used cooperatively on screw rod 7 and fixing groove 22, in the first pin hole 13
It is provided with the first pin 8；Preceding fitting groove 14 and rear fitting groove 19 are provided on load segment, the bottom of preceding fitting groove 14 is provided with dress
With substrate 21, one end of spring leaf 10 is fixed in assembly substrate 21, the other end of spring leaf 10 vacantly in rear fitting groove 19,
It beats 17 one end of plug and is provided with lug boss 18, the shape of lug boss 18 is cylinder.
In the above-mentioned technical solutions, driver-extractor body 1 is an integral molding structure, and is not needed when assembling driver-extractor by driver-extractor
The various components of body 1 are installed, and assembly driver-extractor is more convenient, fast, improve the speed of assembly driver-extractor；23 He of left side
Right side 12, which constitutes to beat, pulls out lid 11, rounding is provided on left side 23, for preventing doctor from using scratch when the driver-extractor body 1；
First circular arc concave surface enhances vertical plane and beats the bonding strength between dead man 15, pulls out lid 11 so that beating and beats between dead man 15
Connection is firmer, to extend the service life of the driver-extractor body 1；Screw rod 7 is by the first pin 8 and beats the company of dead man 15
It connects, on the one hand the first pin 8 is used for screw rod 7 and makes dead man 15 and be located by connecting, and is on the other hand playing setting fixation in dead man 15
The junction for making dead man 15 and screw rod 7 setting is being beaten in dead man 15, it is occupied to save the driver-extractor body 1 by slot 22
Space more comfortably uses the driver-extractor but also the surface for making dead man 15 keeps smooth convenient for doctor；Substrate 21 is assembled to bullet
Reed 10 provides supporting point, and spring leaf 10 can provide elastic force to lever 3 and support force, lever 3 can be in rear assembly
It is rotated in slot 19 with third pin 2 for supporting point, rear fitting groove 19 is to be through load segment in the vertical direction, in this way
Lever 3 could pass through rear fitting groove 19, and connect with prosthese with cylindrical lug boss 18.
Spring leaf 10 include fixinig plate 41, connection sheet 42 and pressing tablet 40, fixinig plate 41, connection sheet 42 and pressing tablet 40 according to
Secondary connection, fixinig plate 41 are located in preceding fitting groove 14, and connection sheet 42 and pressing tablet 40 are located in rear fitting groove 19,41 He of fixinig plate
It is provided with the second pin hole 20 being used cooperatively in assembly substrate 21, the second pin 9 is provided in the second pin hole 20, it is fixed
The junction of the junction of piece 41 and connection sheet 42, connecting pin and pressing section is arc plate.
In the above-mentioned technical solutions, fixinig plate 41 and assembly substrate 21 are connected by the second pin 9, on the one hand the second pin
9, for fixing and positioning to fixinig plate 41 and assembly substrate 21, on the other hand can pass through when the elastic force deficiency of spring leaf 10
It dismantles the second pin 9 and carries out replacement spring leaf 10, extend the service life of the driver-extractor body 1；Fixinig plate 41 and connection sheet 42
The junction of junction, connecting pin and pressing section is disposed as arc plate, and the setting of arc plate can enhance the toughness of junction
And intensity extends the service life of spring leaf 10 so that frangibility is not allowed in junction；When applying downward pressure to hand handle 4
When, lever 3 can be rotated around third pin 2 toward downwardly direction, so that spring leaf 10 is pressed downward, when the pressure applied to hand handle 4
When disappearance, due to the elastic force of spring leaf 10, lever 3 can be rotated around third pin 2 toward upwardly direction, return to original position；
Due to the effect of spring leaf 10, by exerting a force or not exerting a force to hand handle 4, lever 3 can rotate around third pin 2 and keep flat
Weighing apparatus, to achieve the purpose that assembly and implantation prosthese.
It is provided with the third pin hole 16 being used cooperatively on driver-extractor body 1 and lever 3, is provided in third pin hole 16
Three pins 2, lever 3 successively include the first lever branch 33, the second lever branch 34, third lever branch 36, the 4th lever point
The shape of portion 38 and the 5th lever branch 37, the first lever branch 33 is obtuse triangle, and the shape of the second lever branch 34 is
Parallelogram, the second lever branch 34 are located at the top of pressing tablet 40, and third lever branch 36 includes upper surface 35 and following table
Face 39, upper surface 35 are the first arc convex surface, and lower surface 39 is horizontal ramps, and the shape of the 4th lever branch 38 is rectangle,
The shape of 5th lever branch 37 is parallelogram, is provided with folder hole 50 in the 5th lever branch 37.
In the above-mentioned technical solutions, a part and second when assembling hand handle 4 and lever 3, in the first lever branch 33
A part in lever branch 34 is located in connecting groove 28, so that hand handle 4 is recessed by connecting when applying pressure to hand handle 4
Slot 28 applies pressure to lever 3, and the second lever branch 34 is the longer parallelogram of length, is utilizing lever principle in this way
A little strength is needed, the 5th lever branch 37 can just rotated, strength when saving assembly and being implanted into prosthese；Third thick stick
Bar branch 36 is connected and fixed for lever 3 and driver-extractor body 1, and third pin 2 enables lever 3 to occur with respect to driver-extractor body 1
Rotation, the setting of the first arc convex surface shorten the length of third lever branch 36 relative to common plane, utilize lever original
Reason clamps prosthese convenient for folder hole 50, while also making the driver-extractor body 1 more compact, and doctor is convenient for holding the driver-extractor body 1,
And the width of third lever branch 36 is increased, the intensity and toughness of third lever branch 36 are increased, lever 3 is extended
Service life；In order to beat plug 17 and be used cooperatively, the 5th lever branch 37 is provided parallel to quadrangle, has changed the 4th lever
The direction of branch 38 is worked by both folder hole 50 and lug boss 18 one to fix and be implanted into prosthese, enables the driver-extractor
Enough it is easier to control prosthese.
Hand handle 4 includes first connecting portion 31 and second connecting portion 25, and first connecting portion 31 is provided with connection slot 32, connection
Slot 32 is passed through for screw rod 7, and second connecting portion 25 includes upper bottom surface 26, bottom surface 30 and arc-shaped side 27, and upper bottom surface 26 is
Second circular arc concave surface, connecting groove 28 is provided on bottom surface 30, and connecting groove 28 passes through arc-shaped side 27, and connecting groove
28 include third circular arc concave surface 29, and connecting groove 28 is used cooperatively with the first lever branch 33 and the second lever branch 34, third
Gap is provided between circular arc concave surface 29 and the first lever branch 33.
In the above-mentioned technical solutions, connection slot 32 is connected for hand handle 4 and screw rod 7, when exerting a force to hand handle 4, connection
Slot 32 can be moved up and down along screw rod 7；The recessed radian of second circular arc concave surface is consistent with the radian of manpower, meets human body power
It learns, so that doctor is more comfortable when using the hand handle 4；The setting of third circular arc concave surface 29 and the first lever branch 33 are opposite
It answers, third circular arc concave surface 29 is used to limit the position of truck dead lever 3, sets between third circular arc concave surface 29 and the first lever branch 33
It is equipped with gap, it is such to be arranged so that the pressure that third circular arc concave surface 29 is subject to is applied to third circular arc concave surface 29 and the first lever
The junction of branch 33 utilizes lever principle, the first lever point so that stress is larger at the obtuse angle of the first lever branch 33
The torque in portion 33 is also larger, to more preferably send the pressure being subject to lever, when manipulator is 4, lever 3 is sensitiveer, clever
It is living.
Screw rod 7 successively includes the first screw rod branch 43 and the second screw rod branch 44, and the first pin hole 13 on screw rod is located at
First screw rod branch 43, the first screw rod branch 43 are quadrangular shape, and the first screw rod branch 43 includes perpendicular 46 and the second circle
Arc convex surface 47, perpendicular 46 and the second arc convex surface 47 are staggered, and the width of the second screw rod branch 44 is less than the first screw rod
The width of branch 43；It is provided with nut 5 on screw rod 7, nut 5 includes the first nut branch 48 and the second nut branch 49, and first
The shape of nut branch 48 is truncated cone-shaped, and the shape of the second nut branch 49 is cylinder, and nut interior is provided with screw hole, the
Two screw rod branches 44 pass through screw hole, are provided with the limit hole 45 being used cooperatively on screw rod 7 and nut, are provided in limit hole 45
Position-limitting pin 6.
In the above-mentioned technical solutions, the shape of fixing groove 22 is rectangle, the shape of perpendicular 46 and fixing groove 22
Shape is adapted, so that screw rod 7 is fixedly connected by the first pin 8 with driver-extractor body 1, the second screw rod branch 44 passes through link slot
Behind hole 32, the other end of the second screw rod branch 44 and nut 5 are connected, prevent hand handle 4 from falling off from the second screw rod branch 44；The
When two screw rod branches 44 and nut 5 connect, the screw hole on nut 5 is packed into the second screw rod branch 44, the limit on screw rod 7
Limit hole 45 on hole 45 and nut 5 is aligned, and by position-limitting pin 6 with hand by limit hole 45 is pressed into, will when to be dismantled
Position-limitting pin 6 removes limit hole 45, is threadedly coupled compared to by nut 5 and screw rod 7, such connection type is more saved
Time.
Beating plug 17 includes fixed part 52 and sliding part 51, is provided with multiple positioning grooves 53, sliding part on fixed part 52
Location hole is provided on 51, positioning hole is provided with positioning screw 54, and positioning screw 54 and positioning groove 53 are used cooperatively.
In the above-mentioned technical solutions, fixed part 52 and the cooperation of sliding part 51 adjust the prosthese that can adapt to different length, when
It is when the length of prosthese is longer, sliding part 51 is mobile toward the direction far from fixed part 52, and it is recessed that positioning screw 54 is screwed into positioning
Slot 53 fixes the position between sliding part 51 and fixed part 52, so that the length of plug 17 is beaten, if beating plug 17
Length is short, and the length of prosthese is long, and the center of gravity of prosthese can beaten outside plug 17, causes prosthese to be easy to fall from beating on plug 17, beats
The length of plug 17 and the adaptable connection for enabling to prosthese and beating plug 17 of the length of prosthese are stronger；When the length of prosthese
It is when spending shorter, the direction of sliding part 51 toward close fixed part 52 is mobile, and positioning screw 54 is screwed into positioning groove 53, it will slide
Position between dynamic portion 51 and fixed part 52 is fixed, so that the length for beating plug 17 shortens, if the length for beating plug 17 is longer,
Prosthese farther out, is not easy to exert a force to prosthese apart from driver-extractor body 1, and the length of the length and prosthese of beating plug 17, which is adapted, more to be held
Easily air exercise plug 17 is operated.
The side of first connecting portion 31 is provided with limiting groove 24, and the shape of limiting groove 24 is isosceles trapezoid, limits recessed
Slot 24 and the second circular arc concave surface are in the same side.
In the above-mentioned technical solutions, the shape of limiting groove 24 and the shape of the first nut branch 48 are adapted, rotary table and
Isosceles trapezoid is provided with inclined-plane, when the elastic force due to spring leaf 10, when lever 3 and hand handle 4 are sprung back, and first connecting portion 31 and spiral shell
Mother 5 can collide, and the setting on inclined-plane increases the contact area of first connecting portion 31 and nut 5, to reduce the first company
The impact force that socket part 31 and nut 5 are subject to, so that first connecting portion 31 and nut 5 are less likely to be damaged；When manipulator is 4, first
Interconnecting piece 31 can move in the second screw rod branch 44, and the first nut branch 48 also plays the effect of limit, and limitation first connects
The range that socket part 31 moves in the second screw rod branch 44.
Limit hole 45 on screw rod is arranged in the second screw rod branch 44, and the limit hole 45 on nut 5 is arranged in the second spiral shell
In mother stock portion 49.
In the above-mentioned technical solutions, limit hole 45 is located at the one end of the second screw rod branch 44 far from the first screw rod branch 43,
It may be provided with multiple limit holes 45 in second screw rod branch 44, so that nut 5 is fixed on the second spiral shell according to different size prosthese
Different position in bar branch 44.
It beats the outer surface of dead man 15, be provided with rounding in second connecting portion 25.
In the above-mentioned technical solutions, there is rounding setting in many places on the driver-extractor body 1, rounding can not only go de-stress, also
The machining accuracy that can guarantee the driver-extractor body 1 allows doctor more safely and effectively to use the driver-extractor body 1.
The working principle of the invention is: when assembling the driver-extractor, second pin 9 of spring leaf 10 being first fixed on assembly
In substrate 21, while first pin 8 of screw rod 7 is fixed on fixed section, lever 3 is then passed through into driver-extractor body 1, and use third
Pin 2 and driver-extractor body 1 are attached fixation, then the first connecting portion 31 of hand handle 4 is made to pass through the second screw rod branch 44, simultaneously
Connection slot 32 is connect with the first lever branch 33 and the second lever branch 34, is finally pressed into screw rod 7 and spiral shell using position-limitting pin 6
Limit hole 45 on mother 5, is connected and fixed screw rod 7 and nut 5.When using the prosthese driver-extractor, first passes through and be pressed downward hand handle 4 and make
Folder hole 50 and beat plug 17 and clamp hip prosthesis, after Using prosthesis, unclamp hand handle 4 so that prosthese and folder hole 50 and
It beats plug 17 to separate, Using prosthesis is completed.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of compression type bone-cement type hip prosthesis driver-extractor, it is characterised in that: the prosthese driver-extractor includes driver-extractor
Body (1), lever (3) and hand handle (4) are provided with screw rod (7) and spring leaf (10), the hand handle (4) on the driver-extractor body (1)
It is connected by screw rod (7) and driver-extractor body (1), one end of the lever (3) is arranged in the top of spring leaf (10), the lever
(3) the other end passes through driver-extractor, and connects with driver-extractor, and the hand handle (4) is arranged in the top of lever (3), and hand handle (4)
It is connected with lever (3) card slot.
2. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 1, it is characterised in that: described to beat
The integrated formed structure that body (1) is strip is pulled out, the driver-extractor body (1) successively includes beating pull out lid (11), beat dead man (15)
With beat plug (17), it is described beat to pull out lid (11) and beat plug (17) be separately positioned on the both ends for beating dead man (15), described beat pull out lid
(11) include left side (23) and right side (12), be provided with rounding on the left side (23), the right side (12) and beat
Dead man (15) connection, and right side (12) are vertical with dead man (15) are beaten, the right side (12) and the junction for beating dead man (15)
It is set as the first circular arc concave surface, described beat on dead man (15) is pulled out lid (11) and be disposed with toward the direction for beating plug (17) along beating
Fixed section and load segment are provided with fixing groove (22) on the fixed section, and the fixing groove (22) is rectangle, the screw rod
(7) setting is provided with the first pin hole being used cooperatively in the screw rod (7) and fixing groove (22) in fixing groove (22)
(13), the first pin (8) are provided in first pin hole (13)；Be provided on the load segment preceding fitting groove (14) and after
Fitting groove (19), the bottom of the preceding fitting groove (14) are provided with assembly substrate (21), and one end of the spring leaf (10) is fixed
In assembly substrate (21), the other end of the spring leaf (10) is vacantly interior in rear fitting groove (19), described to beat plug (17) one
End is provided with lug boss (18), and the shape of the lug boss (18) is cylinder.
3. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 2, it is characterised in that: the bullet
Reed (10) includes fixinig plate (41), connection sheet (42) and pressing tablet (40), the fixinig plate (41), connection sheet (42) and pressing
Piece (40) is sequentially connected, and the fixinig plate (41) is located in preceding fitting groove (14), the connection sheet (42) and pressing tablet (40) position
In rear fitting groove (19), the second pin hole being used cooperatively is provided in the fixinig plate (41) and assembly substrate (21)
(20), it is provided with the second pin (9) in second pin hole (20), the connection of the fixinig plate (41) and connection sheet (42)
The junction at place, connecting pin and pressing section is arc plate.
4. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 3, it is characterised in that: described to beat
The third pin hole (16) for being provided with and being used cooperatively on body (1) and lever (3) is pulled out, is provided in the third pin hole (16)
Third pin (2), the lever (3) successively include the first lever branch (33), the second lever branch (34), third lever branch
(36), the 4th lever branch (38) and the 5th lever branch (37), the shape of first lever branch (33) are obtuse angle triangle
The shape of shape, second lever branch (34) is parallelogram, and second lever branch (34) is located at pressing tablet (40)
Top, third lever branch (36) includes upper surface (35) and lower surface (39), and the upper surface (35) is the first circle
Arc convex surface, the lower surface (39) are horizontal ramps, and the shape of the 4th lever branch (38) is rectangle, the 5th thick stick
The shape of bar branch (37) is parallelogram, is provided with folder hole (50) on the 5th lever branch (37).
5. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 4, it is characterised in that: the hand
It include first connecting portion (31) and second connecting portion (25) (4), the first connecting portion (31) is provided with connection slot (32),
The connection slot (32) passes through for screw rod (7), and the second connecting portion (25) includes upper bottom surface (26), bottom surface (30) and circle
Arcuate flanks (27), the upper bottom surface (26) are the second circular arc concave surface, are provided with connecting groove (28) on the bottom surface (30),
The connecting groove (28) passes through arc-shaped side (27), and connecting groove (28) includes third circular arc concave surface (29), the company
Groove (28) is connect to be used cooperatively with the first lever branch (33) and the second lever branch (34), third circular arc concave surface (29) and
Gap is provided between first lever branch (33).
6. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 5, it is characterised in that: the spiral shell
Bar (7) successively includes the first screw rod branch (43) and the second screw rod branch (44), the first pin hole (13) position on the screw rod
In the first screw rod branch (43), first screw rod branch (43) is quadrangular shape, and first screw rod branch (43) includes perpendicular
Straight plane (46) and the second arc convex surface (47), the perpendicular (46) and the second arc convex surface (47) are staggered, described
Width of the width of second screw rod branch (44) less than the first screw rod branch (43)；Nut (5) are provided on the screw rod (7),
The nut (5) includes the first nut branch (48) and the second nut branch (49), the shape of first nut branch (48)
For truncated cone-shaped, the shape of second nut branch (49) is cylinder, and the nut interior is provided with screw hole, described second
Screw rod branch (44) passes through screw hole, is provided with the limit hole (45) being used cooperatively on the screw rod (7) and nut (5), described
Position-limitting pin (6) are provided in limit hole (45).
7. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 6, it is characterised in that: described to beat
Plug (17) includes fixed part (52) and sliding part (51), is provided with multiple positioning grooves (53), institute on the fixed part (52)
State and be provided with location hole on sliding part (51), the positioning hole is provided with positioning screw (54), the positioning screw (54) and
Positioning groove (53) is used cooperatively.
8. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 7, it is characterised in that: described
The side of one interconnecting piece (31) is provided with limiting groove (24), and the shape of the limiting groove (24) is isosceles trapezoid, the limit
Position groove (24) and the second circular arc concave surface are in the same side.
9. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 8, it is characterised in that: the spiral shell
Limit hole (45) on bar (7) is arranged in the second screw rod branch (44), and limit hole (45) setting on the nut (5) is the
In two nut branches (49).
10. a kind of compression type bone-cement type hip prosthesis driver-extractor according to claim 9, it is characterised in that: described
It beats the outer surface of dead man (15), second connecting portion (25), be provided with rounding in the 5th lever branch (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574124.5A CN109498224B (en) | 2018-12-21 | 2018-12-21 | Compression bone cement type hip joint prosthesis beating and pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574124.5A CN109498224B (en) | 2018-12-21 | 2018-12-21 | Compression bone cement type hip joint prosthesis beating and pulling device |
Publications (2)
| Publication Number | Publication Date |
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| CN109498224A true CN109498224A (en) | 2019-03-22 |
| CN109498224B CN109498224B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811574124.5A Active CN109498224B (en) | 2018-12-21 | 2018-12-21 | Compression bone cement type hip joint prosthesis beating and pulling device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109498224B (en) | 2023-12-12 |
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