CN110063821A - A kind of proximal end forming device - Google Patents
A kind of proximal end forming device Download PDFInfo
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- CN110063821A CN110063821A CN201910431010.3A CN201910431010A CN110063821A CN 110063821 A CN110063821 A CN 110063821A CN 201910431010 A CN201910431010 A CN 201910431010A CN 110063821 A CN110063821 A CN 110063821A
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- Prior art keywords
- proximal end
- die trial
- former
- distal end
- forming device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; 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
- A61F2/46—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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4644—Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material
-
- 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
- A61F2/4684—Trial or dummy prostheses
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of proximal end forming devices, including distal end die trial (1), proximal end die trial (3) and proximal end former (4), distal end die trial (1) proximal face is provided with distal end die trial and indexes tooth (12), and the distal end end face of proximal end die trial (3) and proximal end former (4) is respectively arranged with proximal end die trial indexing tooth (31) and former indexing tooth (41) matched with distal end die trial indexing tooth (12).The proximal end forming device has indexing function, can precisely align and position；Distal end die trial has the function of anti-rotation；The screw that the pin being arranged on the hole wall of proximal end former centre bore can prevent its included is fallen；After the former use of proximal end, due to the extraction slot of its proximal end setting, keep its extraction more convenient；It is easy to process that it is provided with scale on the vertical plate of sighting device, is easier to be aligned；In addition, the proximal end forming device can prevent type femoral bone end prosthesis from sinking and rotating in the notch that near end of thighbone mills out.
Description
Technical field
The invention belongs to orthopedic medical device technical fields, and in particular to a kind of proximal end forming device.
Background technique
Developmental dislocation of hip joint (Developmental Dysplasia of the Hip, DDH) is also known as congenital
The dislocation of hip joint, mainly acetabular bone, near end of thighbone and joint capsule etc. haves the defects that developmentally to lead to the unstable of joint,
Until development is the dislocation of hip joint, it is one of the principal disease for leading to children's physical disabilities.Disease incidence of the DDH in China be about
3.9 ‰, male to female ratio is about 1:6.
DDH is developed to middle and advanced stage, can concurrent hipbone arthritis.Patient articular cartilage destroys, and subchondral bone matter is exposed and capsule
Property become, hyperostosis osteosclerosis in ivory sample become, joint space narrow even disappear, at this time hip joint activity difficulty or almost without work
Dynamic degree, clinical symptoms are obvious, and carrying out total hip replacement using artificial hip prosthesis is ideal therapeutic scheme, first hip femur
Handle is one of important component of artificial hip prosthesis, and proximal end forming operation is the steps necessary of first hip femoral stem implantation, and close
End molding needs to complete using proximal end forming device.
For existing proximal end forming device such as by DePuyOrthopaedics, the S-ROM of Inc sale, is processed
Proximal end molding is directly done in good near end of thighbone pulp cavity, is then installed again by the proximal end of femoral stem, distally with the indexing in neck portion,
To keep the neck of femoral stem consistent with former neck of femur direction.The first hip femoral stem of this assembly type has loosening after being implanted into human body
Risk can impact the movement of patient, result even in implantation material failure, need to perform the operation again and overhaul, therefore need to develop
A kind of novel integral type elder generation hip femoral stem out, thoroughly avoids this risk of assembly type elder generation hip femoral stem.But this integral type
First hip femoral stem itself does not have indexing function, needs to complete indexing when proximal end forms, makes to place the close of first hip femoral stem
The direction of end slot is consistent with former neck of femur direction, just can guarantee neck direction and former neck of femur direction one after first hip femoral stem implantation
It causes, and existing proximal end forming device is not able to satisfy such functional requirement.
Summary of the invention
It is existing to solve in view of the deficiencies of the prior art, the present invention intends to provide a kind of proximal end forming device
There is proximal end forming device in technology not have indexing function, cannot be accurately aimed at and position, not be suitable for integral type elder generation hip femur
The problem of handle implant surgery.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of proximal end forming device, including distal end die trial, proximal end die trial and proximal end former, the distal end die trial proximal face are set
It is equipped with distal end die trial indexing tooth, the distal end end face of proximal end die trial and proximal end former is respectively arranged with and distal end die trial indexing tooth phase
The proximal end die trial indexing tooth and former of cooperation index tooth.
Preferably, the number of the distal end die trial indexing tooth, proximal end die trial indexing tooth and former indexing tooth is 9 ~ 72,
Such as 12,18,24 or 36.
Preferably, the distal end die trial is cone structure, and taper is 2 ° ~ 8 °, such as 3 °, 4 °, 5 ° or 6 °.
Preferably, the male cone (strobilus masculinus) of the distal end die trial forms convex ridge.
Preferably, the proximal face of the distal end die trial is provided centrally with centre bore, and centre bore includes interconnected
Unthreaded hole and threaded hole, and threaded hole is far from proximal face.
Preferably, the die trial screw cooperated with distal end die trial, examination are provided in the proximal end die trial and proximal end former
The tail portion of mould screw is from proximal end to distally successively including optical axis portion and threaded portion, the distal end end face of proximal end die trial and proximal end former
Center is respectively arranged with proximal end unthreaded hole and former centre bore；When proximal end die trial or proximal end former and distal end die trial cooperate, examination
The optical axis portion of mould screw is located in proximal end unthreaded hole or former centre bore and the unthreaded hole of distal end die trial；The threaded portion of die trial screw with
The threaded hole of distal end die trial cooperates.
Preferably, being provided on the hole wall of the former centre bore of the proximal end former prevents die trial screw from deviating from proximal end
The pin of former.
Preferably, the proximal end of the proximal end former, which is provided with, extracts extraction slot used in the former of proximal end.
Preferably, the proximal end forming device further includes sighting device and proximal end profile milling cutter, is provided in the former of proximal end
Sight hole, sighting device are placed in sight hole；Sighting device includes handle, the bar portion for being fixed on handle, at its lower end and is fixed on bar portion side wall
Vertical plate, carriage arbor is set on vertical plate；Proximal end profile milling cutter is placed in carriage arbor.
Preferably, the bar portion distal end forms groove, and the handle is the handle that surface covers silica gel；It is set on the vertical plate
It is equipped with graduation mark.
Compared with prior art, the invention has the benefit that
Proximal end forming device provided by the invention has indexing function, suitable for making for integral type elder generation hip femoral stem implant surgery
With so that positioning is more accurate；
The unthreaded hole of proximal end forming device provided by the invention its distal end die trial, proximal end die trial and the setting of proximal end former has auxiliary
The effect for indexing tooth cooperation, further improves the accuracy of positioning；
The distal end die trial of proximal end forming device provided by the invention has the function of anti-rotation；
The pin being arranged on the hole wall of the proximal end former centre bore of proximal end forming device provided by the invention can prevent it certainly
The screw of band is fallen；
After the proximal end former use of proximal end forming device provided by the invention, due to the extraction slot of its proximal end setting, pull out it
It is more convenient out；
It is easy to process that it is provided with scale on the vertical plate of the sighting device of proximal end forming device provided by the invention, is easier to be aligned, favorably
In the milling depth of control proximal end profile milling cutter；
Proximal end forming device provided by the invention can mill out notch near end of thighbone, which can be with type femoral bone end prosthesis neck
Extraction slot cooperation prevent type femoral bone end prosthesis sink and rotation.
Detailed description of the invention
Fig. 1 is the marking phase assembling schematic diagram for the proximal end forming device that embodiment 1 provides；
Fig. 2 is the shaping stage assembling schematic diagram for the proximal end forming device that embodiment 1 provides；
Fig. 3 is the top view of distal end die trial in the proximal end forming device of the offer of embodiment 1；
Fig. 4 be in Fig. 3 A-A to sectional view；
Fig. 5 is the bottom view of proximal end die trial in the proximal end forming device of the offer of embodiment 1；
Fig. 6 is the sectional view of B-B direction in Fig. 5；
Fig. 7 is the bottom view of proximal end former in the proximal end forming device of the offer of embodiment 1；
Fig. 8 be in Fig. 7 C-C to sectional view；
Fig. 9 is the structural schematic diagram of sighting device in the proximal end forming device of the offer of embodiment 1；
Figure 10 is the structural schematic diagram of proximal end form cutter in the proximal end forming device of the offer of embodiment 1.
Wherein:
1 distal end die trial, 2 die trial screw
3 proximal end die trial, 4 proximal end former
5 sighting device, 6 proximal end profile milling cutter
11 convex ridge, 12 distal end die trial indexes tooth
13 centre bores
31 proximal end die trials index 32 neck of tooth
33 proximal end unthreaded hole, 34 interconnecting piece
41 formers index 42 pin of tooth
43 body of rod, 44 sight hole
45 former centre bores 46 extract slot
51 bar portion, 52 carriage arbor
53 graduation mark, 54 handle
55 vertical plate, 56 location hole
61 pin shaft, 62 cutting edge
63 locating shaft, 64 electric drill interface.
Specific embodiment
In the description of the present invention, it is to be understood that, the instructions such as term " center ", "upper", "lower", "inner", "outside"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.In addition, term " first ", " second " etc. are used for description purposes only, and cannot manage
Solution is indication or suggestion relative importance or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ",
The feature of " second " etc. can explicitly or implicitly include one or more of the features.In the description of the present invention, it removes
Non- to be otherwise noted, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Below unless otherwise specified, distal end and proximal end refer to the distance with trunk distance.
Embodiment 1
As shown in Figure 1, 2, a kind of proximal end forming device, including distal end die trial 1, distal end die trial 1 are tried by die trial screw 2 and proximal end
Mould 3 or proximal end former 4 connect, and sighting device 5 penetrates proximal end former 6, and proximal end profile milling cutter 6 is mounted on sighting device 5.
1 proximal face of distal end die trial is provided with distal end die trial indexing tooth 12, proximal end die trial 3 and proximal end former 4
Distal end end face is respectively arranged with the proximal end die trial indexing tooth 31 matched with distal end die trial indexing tooth 12 and former indexing tooth 41；
The structure can realize indexing function, be applicable to the hip femoral stem implant surgery of integral type elder generation, and operate it is convenient, convenient for alignment.
The number of the distal end die trial indexing tooth 12, proximal end die trial indexing tooth 31 and former indexing tooth 41 is 9 ~ 72,
It is 36 in the present embodiment.
As shown in Figure 3,4, distal end die trial 1 is cone structure, and taper is 2 ° ~ 8 °, and the present embodiment is 5 °, and male cone (strobilus masculinus) forms convex
Ridge 11, the number of convex ridge are four.When in distal end, femoral bone cavitas medullaris is squeezed into die trial 1, convex ridge 11 can be embedded in the cortex bone of femoral bone cavitas medullaris,
Prevent distal end die trial 1 from rotating, cone structure facilitates distal end die trial 1 to squeeze into.
The proximal face of the distal end die trial 1 is provided centrally with centre bore 13, and centre bore 13 includes interconnected light
Hole and threaded hole, and threaded hole is set to distal end side.
The die trial screw 2 cooperated with distal end die trial 1, die trial spiral shell are provided in the proximal end die trial 3 and proximal end former 4
The tail portion of nail 2 is from proximal end to distally successively including optical axis portion and threaded portion, the distal end end face of proximal end die trial 3 and proximal end former 4
Center is respectively arranged with proximal end unthreaded hole 33 and former centre bore 45；Proximal end die trial 3 or proximal end former 4 are matched with distal end die trial 1
When conjunction, the optical axis portion of die trial screw 2 is located in proximal end unthreaded hole 33 or former centre bore 45 and the unthreaded hole of distal end die trial 1；Die trial
The threaded portion of screw 2 and the threaded hole of distal end die trial 1 cooperate.
On the one hand the effect of die trial screw is to fix distal end die trial and proximal end die trial or proximal end former, while die trial spiral shell
Nail also acts as the effect of auxiliary indexing tooth cooperation.
Pin 42 is provided on the hole wall of the former centre bore 45 of the proximal end former 4.Pin 42 can guarantee it
Included screw does not fall out proximal end former when unclamping, and causes to lose or fall into pulp cavity, causes operation difficult.
The proximal end of the proximal end former 4, which is provided with, extracts extraction slot 46 used in the former of proximal end, can form proximal end
Device 4 is extracted together with distal end die trial 1, easy to operate.
As shown in figure 9, the sighting device 5 includes handle 54, is fixed on the bar portion 51 of 54 lower end of handle and is fixed on bar portion
Carriage arbor 52 is arranged on vertical plate 55 for the vertical plate 55 of 51 side walls；The bar portion 51 distally forms location hole 56.
The handle 54 is the handle that surface covers silica gel；It is provided with graduation mark 53 on the vertical plate 55, sighting device is downward
When the graduation mark being moved on vertical plate 55 is concordant with the upper surface of proximal end former 4, when being as milled into required depth.
Except above-mentioned improvement part, proximal end die trial, the design of proximal end former, sighting device and proximal end profile milling cutter be can refer to
Corresponding instrument in the S-ROM of DePuyOrthopaedics, Inc sale.
As shown in Figure 5,6, proximal end die trial 3 includes interconnecting piece 34 and neck 32, and neck 32 and interconnecting piece 34 are in an angle, even
Socket part 34 is provided centrally with proximal end unthreaded hole 33, for connecting with distal end die trial 1.
As shown in Figure 7,8, proximal end former 4 includes the body of rod 43, and former centre bore 45, former is arranged in 43 center of the body of rod
Sight hole 44 is arranged in 45 side wall of centre bore, so that centre bore is connected to outside；Sight hole 44 is used to place the bar portion of sighting device 5
51。
As shown in Figure 10, proximal end profile milling cutter 6 include pin shaft 61, pin shaft 61 from distal end to proximal end set gradually cutting edge 62,
Locating shaft 63 and electric drill interface 64.
Embodiment 2
The part-structure of embodiment 1 is improved in the present embodiment, does not refer to that part-structure is identical.
The number of the distal end die trial indexing tooth 12, proximal end die trial indexing tooth 31 and former indexing tooth 41 is 9.
Distal end die trial 1 is cone structure, and taper is 2 °.
Embodiment 3
The part-structure of embodiment 1 is improved in the present embodiment, does not refer to that part-structure is identical.
The number of the distal end die trial indexing tooth 12, proximal end die trial indexing tooth 31 and former indexing tooth 41 is 72.
Distal end die trial 1 is cone structure, and taper is 8 °.
Operating method when being performed the operation using proximal end forming device described in one of embodiment 1 ~ 3 are as follows:
(1) distal end die trial is squeezed into femoral bone cavitas medullaris, is put into proximal end die trial later, adjust proximal end die trial and distal end die trial end face point
Spend the cooperation of tooth so that proximal end die trial neck direction is directed at former neck of femur direction, then by die trial screw by distal end die trial and
Die trial connection in proximal end marks neck direction and dismantles die trial screw after completing trial assembly, removes proximal end die trial；
(2) proximal end former and distal end die trial are cooperated by the indexing tooth that end face is arranged, due to the distal end of proximal end former
The indexing tooth of face setting, it is completely the same with the indexing tooth of proximal end die trial, and can refer to the neck direction of previous step mark when cooperation,
When therefore can guarantee that proximal end former and distal end die trial cooperate, the direction of the sight hole of proximal end former and the side marked before
To consistent, determination side goes backward through the screw carried in the former of proximal end and die trial installation in distal end fastens；
(3) bar portion of sighting device penetrates the centre bore of proximal end former, and the bar portion of sighting device is stuck in the sight hole of proximal end former
In, guarantee that the direction of milling is consistent with the direction marked before, when thus can guarantee the slot installation femoral stem with this milling, femur
The neck direction of handle is consistent with former neck of femur direction；There is graduation mark on vertical plate, sighting device is moved down into the graduation mark on vertical plate
When concordant with the upper surface of proximal end former, when being as milled into required depth；Profile milling cutter head pin shaft insertion in proximal end aims at
The hole of device bar portion, leading portion have a cutting edge, and middle section locating shaft is penetrated in the milling cutter frame aperture of sighting device and positioned, and there is electric drill interface in tail portion, closely
End profile milling cutter is rotarily formed milling campaign with electric drill, completes proximal end shaping operation.
(4) after completing proximal end forming operation, dedicated extraction instrument can be used, using the slot of proximal end, by proximal end former
It is extracted together with the die trial of distal end.
Proximal end forming device provided by the invention solves former proximal end forming device structure without indexing function, is not able to satisfy one
The problems such as demand of body formula elder generation hip femoral stem implant surgery；The unthreaded hole tool of distal end die trial, proximal end die trial and the setting of proximal end former
There is auxiliary indexing tooth cooperation；Distal end die trial has the function of anti-rotation；The pin being arranged on the hole wall of proximal end former centre bore
The screw that son can prevent its included is fallen；After the former use of proximal end, due to its proximal end setting extraction slot, make its extract compared with
It is convenient；It is easy to process that it is provided with scale on the vertical plate of sighting device, is easier to be aligned；The forming device is lacked what near end of thighbone milled out
Mouth can prevent integral type type femoral bone end prosthesis from sinking and rotating.
The Applicant declares that the foregoing is merely a specific embodiment of the invention, but protection scope of the present invention not office
It is limited to this, it should be clear to those skilled in the art, any to belong to those skilled in the art and take off in the present invention
In the technical scope of dew, any changes or substitutions that can be easily thought of, and all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. a kind of proximal end forming device, including distal end die trial (1), proximal end die trial (3) and proximal end former (4), it is characterised in that:
Distal end die trial (1) proximal face is provided with distal end die trial indexing tooth (12), proximal end die trial (3) and proximal end former
(4) distal end end face is respectively arranged with proximal end die trial indexing tooth (31) matched with distal end die trial indexing tooth (12) and former
It indexes tooth (41).
2. proximal end forming device according to claim 1, it is characterised in that: the distal end die trial indexes tooth (12), proximal end
It is 9 ~ 72 that die trial, which indexes tooth (31) and the number of former indexing tooth (41),.
3. proximal end forming device according to claim 1 or 2, it is characterised in that: the distal end die trial (1) is cone knot
Structure, taper are 2 ° ~ 8 °.
4. proximal end forming device according to claim 1 or 2, it is characterised in that: the male cone (strobilus masculinus) shape of the distal end die trial (1)
At convex ridge (11).
5. proximal end forming device according to claim 1 or 2, it is characterised in that: the proximal face of the distal end die trial (1)
Be provided centrally with centre bore (13), centre bore (13) includes interconnected unthreaded hole and threaded hole, and threaded hole is far from proximal end
End face.
6. proximal end forming device according to claim 5, it is characterised in that: the proximal end die trial (3) and proximal end former
(4) it is provided with the die trial screw (2) with distal end die trial (1) cooperation in, the tail portion of die trial screw (2) is from proximal end to distally successively
Including optical axis portion and threaded portion, the distal end end face center of proximal end die trial (3) and proximal end former (4) is respectively arranged with proximal end unthreaded hole
(33) and former centre bore (45)；When proximal end die trial (3) or proximal end former (4) and distal end die trial (1) cooperate, die trial screw
(2) optical axis portion is located in proximal end unthreaded hole (33) or former centre bore (45) and the unthreaded hole of distal end die trial (1)；Die trial screw
(2) threaded hole of threaded portion and distal end die trial (1) cooperates.
7. proximal end forming device according to claim 6, it is characterised in that: in the former of the proximal end former (4)
The pin (42) for preventing die trial screw abjection proximal end former (4) is provided on the hole wall in heart hole (45).
8. proximal end forming device according to claim 1 or 2, it is characterised in that: the proximal end of the proximal end former (4) is set
It is equipped with and extracts extraction slot (46) used in the former of proximal end.
9. proximal end forming device according to claim 1 or 2, it is characterised in that: the proximal end forming device further includes taking aim at
Quasi- device (5) and proximal end profile milling cutter (6) are provided with sight hole (44) in proximal end former (4), and sighting device (5) is placed in sight hole
(44) in；Sighting device (5) includes handle (54), the bar portion (51) for being fixed on handle (54) lower end and is fixed on bar portion (51) side wall
Vertical plate (55), carriage arbor (52) are set on vertical plate (55)；Proximal end profile milling cutter (6) is placed in carriage arbor (52).
10. proximal end forming device according to claim 9, it is characterised in that: bar portion (51) distal end forms location hole
(56), the handle (54) is the handle that surface covers silica gel；Graduation mark (53) are provided on the vertical plate (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431010.3A CN110063821A (en) | 2019-05-22 | 2019-05-22 | A kind of proximal end forming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431010.3A CN110063821A (en) | 2019-05-22 | 2019-05-22 | A kind of proximal end forming device |
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| CN110063821A true CN110063821A (en) | 2019-07-30 |
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|---|---|---|---|
| CN201910431010.3A Pending CN110063821A (en) | 2019-05-22 | 2019-05-22 | A kind of proximal end forming device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116327451A (en) * | 2023-05-26 | 2023-06-27 | 北京纳通医疗科技控股有限公司 | Femoral stem prosthesis |
| CN116712063A (en) * | 2023-08-09 | 2023-09-08 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis model adapting measuring device |
-
2019
- 2019-05-22 CN CN201910431010.3A patent/CN110063821A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116327451A (en) * | 2023-05-26 | 2023-06-27 | 北京纳通医疗科技控股有限公司 | Femoral stem prosthesis |
| CN116327451B (en) * | 2023-05-26 | 2023-08-04 | 北京纳通医疗科技控股有限公司 | Femoral stem prosthesis |
| CN116712063A (en) * | 2023-08-09 | 2023-09-08 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis model adapting measuring device |
| CN116712063B (en) * | 2023-08-09 | 2023-11-24 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis model adapting measuring device |
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