CN104856683B - Femoral stem neck length measuring appliance - Google Patents
Femoral stem neck length measuring appliance Download PDFInfo
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- CN104856683B CN104856683B CN201510276619.XA CN201510276619A CN104856683B CN 104856683 B CN104856683 B CN 104856683B CN 201510276619 A CN201510276619 A CN 201510276619A CN 104856683 B CN104856683 B CN 104856683B
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Abstract
The invention provides femoral stem neck length measuring appliance, including：Femoral stem simulates shank body, and connection end is done with free end and neck；Telescopic femoral stem simulation neck is done, and first end is connected to neck and does connection end, and femoral stem simulation neck is dry with the range reader for being used to measure telescopic level；Femoral stem simulates bulb, is arranged on the second dry end of femoral stem simulation neck.Using a kind of measuring appliance for simulating femoral stem neck length, the measuring appliance has that femoral stem simulates shank body and telescopic femoral stem simulation neck is done, and femoral stem simulation neck is dry, which to be had, is used to measure the range reader of telescopic level to determine femoral head neck length.The femoral stem neck length measuring appliance of the present invention enables medical personnel accurately to determine femoral stem neck length and indicates the femoral head neck length of the suitable human physiological structure of needs apolegamy.
Description
Technical field
The present invention relates to medical equipment, in particular to a kind of femoral stem neck length measuring appliance.
Background technology
, it is necessary to which manually hip prosthesis femoral stem is implanted into human body in artificial hip prosthesis' displacement technique, to replace disease
The human hip of change, it is necessary to ensure that the neck of femoral stem does length appropriateness in implantation process, only in such a situa-tion,
Install after type femoral bone end prosthesis, human body normally could be moved and walked.The excessively loose tension that neck does length adjustment all can be to human body
Motion produces fatal influence.Pine was installed, prosthese femoral head dislocation after installing can be caused to cause to release, tension is installed and then caused
The excessive drawing of muscle, causes human body sensory pain, accelerates the abrasion of femoral head and liner.
In artificial hip prosthesis' displacement technique, existing regulation neck does the method for length using the different neck lengths of adaptation
Femoral head adapts to the different physiological structures of human body.Though such a method can solve to adjust the purpose that femoral stem neck does length,
Need on earth how long the femoral head of neck length, but as a problem that can not be solved very well.
Most of doctors solve this problem using the method for femoral head die trial, exactly manufacture neck length not wait consolidate
Fixed number value femoral head die trial, different femoral head die trials is empirically repeatedly installed in operation and is done to install experiment femoral stem neck
Long is elastic.Although this method can achieve the goal, empirically install and feel elastic, this is to lacking experience
For doctor, operation is difficult, is also dangerous to patient.Importantly, being operated according to feeling, itself has
Have uncertain with not seriousness, the installation elasticity and the neck of selection determined according to sensation does long femoral head, is also subjectivity, no
Stable, it is necessary to improved.
The content of the invention
It is a primary object of the present invention to provide a kind of femoral stem neck length measuring appliance, to solve in the prior art according to patient
Physiological structure determine the problem of femoral head neck length is difficult.
To achieve these goals, the invention provides a kind of femoral stem neck length measuring appliance, including：Femoral stem simulates handle
Body, connection end is done with free end and neck；Telescopic femoral stem simulation neck is done, and the dry first end of femoral stem simulation neck is connected to
Neck does connection end, and femoral stem simulation neck is dry with the range reader for being used to measure telescopic level；Femoral stem simulates bulb, sets
The second dry end of neck is simulated in femoral stem.
Further, range reader is to offer at least one along along the axial direction of reading cylinder on reading cylinder, its barrel
Individual reading chute；Femoral stem simulation neck is dry also to be included：Range pointer, is connected with being relatively fixed with femoral stem simulation shank body, and
One end of range pointer is movably arranged in reading chute.
Further, femoral stem simulation neck is dry also includes connector, and first end and the neck of connector are done connection end and be connected；
Second end of connector sets range pointer.
Further, the dry elastomeric element for also including being arranged in reading cylinder of femoral stem simulation neck；One end of connector can
Actively extend in reading cylinder, and abutted with elastomeric element.
Further, elastomeric element is spring.
Further, reading chute is two, and two reading chutes are symmetrically arranged on the barrel of reading cylinder, and range refers to
The two ends of pin are stretched out outside reading chute, and the two ends of range pointer are arranged in two reading chutes respectively, and at least one
The edge of reading chute is provided with reading scale.
Further, range pointer is rod-like structure.
Further, connector is provided with fixing hole, and range pointer is arranged in fixing hole.
Further, connector is tubulose, and the external diameter of connector is less than the internal diameter of reading cylinder, and at least part of connector is led to
Range pointer is crossed to be arranged and be movably arranged in the reading chute of reading cylinder.
Further, neck is dry is made of stainless steel for femoral stem simulation shank body and/or femoral stem simulation.
Apply the technical scheme of the present invention, using a kind of measuring appliance for simulating femoral stem neck length, the measuring appliance has femur
Handle simulates shank body and telescopic femoral stem simulation neck is done, and femoral stem simulation neck is dry to be read with the range for being used to measure telescopic level
Device is counted to determine femoral head neck length.The femoral stem neck length measuring appliance of the present invention enables medical personnel accurately to determine femoral stem
Neck length simultaneously indicates to need the femoral stem neck length of the suitable human physiological structure of apolegamy.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the front view of the embodiment of the femoral stem neck length measuring appliance according to the present invention；
Fig. 2 shows the explosive view according to the dry embodiment of the femoral stem simulation neck of the present invention；And
Fig. 3 shows the overall structure diagram according to the dry embodiment of the femoral stem simulation neck of the present invention.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, femoral stem simulation shank body；20th, femoral stem simulation bulb；30th, reading cylinder；31st, reading chute；32nd, reading mark
Chi；40th, range pointer；50th, connector；51st, fixing hole；60th, elastomeric element.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary
Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be appreciated that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, expands layer
With the thickness in region, and make identical device is presented with like reference characters, thus description of them will be omitted.
As shown in figure 1, the femoral stem neck length measuring appliance of embodiments of the invention, including femoral stem are simulated shank body 10 and can stretched
The femoral stem simulation neck of contracting is done.
Specifically, there is femoral stem simulation shank body 10 free end and neck to do connection end.Telescopic femoral stem simulation neck is done
First end be connected to neck and do connection end, femoral stem simulation neck is dry with the range reader for being used to measure telescopic level.Femur
Handle simulation bulb 20 is arranged on the second dry end of femoral stem simulation neck.
In embodiment, using a kind of measuring appliance for simulating femoral stem neck length, there is the measuring appliance femoral stem to simulate shank body
10 and telescopic femoral stem simulation neck do, femoral stem simulation neck it is dry with the range reader for being used to measure telescopic level with true
Determine femoral head neck length.The femoral stem neck length measuring appliance of the present invention enables medical personnel accurately to determine femoral stem neck length and refer to
Show the femoral head neck length of the suitable human physiological structure of needs apolegamy.Simulated during operation in femoral stem between shank body 10 and femoral head
Telescopic femoral stem simulation neck it is dry on, load a suitable strength, strut the human muscular tissue after being implanted into, make muscle
The tensile force of an appropriateness is kept, in the presence of this strength, for determining that it is suitable that the dry length of the neck needed and needs are matched
Neck length femoral head.With the method, so that it may which a step completes to measure the dry length of femoral stem neck under appropriate tensile strength and determines to match femur
Head dummy number.
In the present embodiment, range reader is to be opened up on reading cylinder 30, its barrel along along the axial direction of reading cylinder 30
There is at least one reading chute 31.Femoral stem simulation neck is dry also to include range pointer 40, and range pointer 40 simulates handle with femoral stem
Body 10 is connected with being relatively fixed, and one end of range pointer 40 is movably arranged in reading chute 31.In reading cylinder 30
Barrel axle set up reading chute 31, in order to can be with the femoral stem simulation neck dry range pointer 40 being connected
Reading cylinder 30 is slided, and the distance slided by range pointer 40 on reading chute 31 can accurately determine the neck for needing to match
Long femoral head.One end of range pointer 40 is movably arranged in reading chute 31 partly in order to so that reading is more square
Just, on the other hand it is to play to prevent range pointer 40 from coming off in sliding process.
In another embodiment of the invention, femoral stem simulation neck is dry has a connector 50, the first end of connector 50 with
Neck is done connection end and is connected, and the second end of connector 50 sets range pointer 40.
In the present embodiment, the dry elastomeric element 60 for also including being arranged in reading cylinder 30 of femoral stem simulation neck.Connector
50 one end is movably extended in reading cylinder 30, and is abutted with elastomeric element 60.The benefit so set is femoral stem mould
When intending that neck is dry to be extruded by connector 50 and elastomeric element 60 so that in the axial direction of barrel shape occurs for elastomeric element 60
Become, be now arranged on range pointer 40 that the second end of connector 50 sets also with the deformation in the axial direction of elastomeric element 60
It is subjected to displacement, the data of the specific displacement of range pointer 40 can be read from barrel.
Preferably, elastomeric element 60 is spring.The benefit that elastomeric element 60 is set to spring is so that whole measuring appliance
Structure and processing are all very simple, easily realize.
In the present embodiment, reading chute 31 is two, the symmetrical cylinder for being arranged at reading cylinder 30 of two reading chutes 31
On wall, the two ends of range pointer 40 are stretched out outside reading chute 31.The two ends of range pointer 40 are arranged in two readings respectively
In chute 31, and the edge of at least one reading chute 31 is provided with reading scale 32.Reading is both provided with cylinder both sides
Chute 31, and the two ends of range pointer 40 are stretched out outside reading chute 31, the benefit so set is effectively to prevent range
Pointer 40 comes off during slip.The edge of at least one reading chute 31 is provided with reading scale 32, so set
The benefit put is the length and the selected type with femoral head that the femoral stem neck required for directly being read from reading cylinder 30 is done
Number.
Preferably, range pointer 40 is rod-like structure.In the present embodiment, because range pointer 40 is provided in reading cylinder
Slided in reading chute 31 on 30 barrel, shaft-like range pointer 40 now happens is that linear contact lay with reading chute 31,
So range pointer 40 is that can reduce the friction between range pointer 40 and reading chute 31 using the benefit of rod-like structure, from
And play the sensitivity of increase measuring appliance.
In order that range pointer 40 more it is firm be connected on connector 50 and reading cylinder 30 in, in the present embodiment
In, connector 50 is provided with fixing hole 51, and range pointer 40 is arranged in fixing hole 51.
In the present embodiment, connector 50 is tubulose, and the external diameter of connector 50 is less than the internal diameter of reading cylinder 30, connector 50
At least partially by range pointer 40 be arranged and be movably arranged at reading cylinder 30 reading chute 31 in.Connector 50 is adopted
With the contact surface being engaged with reading 30 inwalls of cylinder so that femoral stem is simulated shank body 10 and moved by connector 50 in reading cylinder 30
When do not deviate and rock so as to avoid the number of degrees error of femoral stem neck length measuring appliance, effectively raise femoral stem neck length
The measurement accuracy of measuring appliance.
In another embodiment of the present invention, connector 50 can be integrated the knot of setting with femoral stem simulation shank body 10
Structure.
In the present embodiment, neck is dry is made of stainless steel for femoral stem simulation shank body 10 and/or femoral stem simulation.Using stainless
The femoral stem neck length measuring appliance that steel is made has certain rigidity, and is difficult corrosion oxidation, safety durable.
The present invention is by simulating the implantation that the measuring appliance of femoral stem neck length is adapted to according to needed for being determined the physiological structure of patient
The such as full hip of limbs joint and hemiarthroplasty art so that the joint body that the joint body of implantation will not fall off or be implanted into
Cross the dangerous situation of pine or tension.The joint body installed needed for being determined by the measuring appliance of the simulation femoral stem neck length of the present invention
Size will not cause patient's feels pain, it also avoid the abrasion in joint body and the interior village of implantation, using being selected again after first measuring
Suitable articular prosthesis is implanted into so that the patient after implantation can walk freely.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
The present invention is using a kind of measuring appliance for simulating femoral stem neck length, and there is the measuring appliance femoral stem to simulate shank body and can stretch
The femoral stem simulation neck of contracting is done so that medical personnel can accurately determine femoral stem neck length simultaneously according to femoral stem neck length measuring appliance
Indicate to need the femoral stem neck length of the suitable human physiological structure of apolegamy.
Adaptive type femoral stem neck length measuring appliance of the present invention can accurately determine femoral stem neck length and indicate to need the conjunction of apolegamy
Suitable neck length femoral head.During measurement, measuring appliance can apply a tensile force to musculature, measurement more accurately may be used
Lean on, one-shot measurement just can determine that result.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of femoral stem neck length measuring appliance, it is characterised in that including：
Femoral stem simulation shank body (10), connection end is done with free end and neck；
Telescopic femoral stem simulation neck is done, and the dry first end of the femoral stem simulation neck is connected to the neck and does connection end, institute
State femoral stem simulation neck dry with the range reader for being used to measure telescopic level；
Femoral stem simulation bulb (20), is arranged on the second dry end of the femoral stem simulation neck.
2. femoral stem neck length measuring appliance according to claim 1, it is characterised in that
The range reader is to be offered at least along along the axial direction of reading cylinder (30) on reading cylinder (30), its barrel
One reading chute (31)；
The femoral stem simulation neck is dry also to be included：
Range pointer (40), is connected with being relatively fixed with femoral stem simulation shank body (10), and the range pointer (40)
One end be movably arranged in the reading chute (31).
3. femoral stem neck length measuring appliance according to claim 2, it is characterised in that the femoral stem simulation neck is dry also to be included
Connector (50), first end and the neck of the connector (50) are done connection end and are connected；The second of the connector (50)
End sets the range pointer (40).
4. femoral stem neck length measuring appliance according to claim 3, it is characterised in that
The dry elastomeric element (60) for also including being arranged in the reading cylinder (30) of femoral stem simulation neck；
One end of the connector (50) is movably extended in the reading cylinder (30), and is supported with the elastomeric element (60)
Connect.
5. femoral stem neck length measuring appliance according to claim 4, it is characterised in that the elastomeric element (60) is spring.
6. femoral stem neck length measuring appliance according to claim 2, it is characterised in that the reading chute (31) is two,
Two reading chutes (31) are symmetrically arranged on the barrel of the reading cylinder (30), the two ends of the range pointer (40)
Stretch out the reading chute (31) outside, the two ends of the range pointer (40) are arranged in two reading chutes respectively
(31) in, and the edge of at least one reading chute (31) is provided with reading scale (32).
7. femoral stem neck length measuring appliance according to claim 2, it is characterised in that the range pointer (40) is shaft-like knot
Structure.
8. femoral stem neck length measuring appliance according to claim 3, it is characterised in that the connector (50) is provided with fixation
Hole (51), the range pointer (40) is arranged in the fixing hole (51).
9. femoral stem neck length measuring appliance according to claim 3, it is characterised in that the connector (50) is tubulose, institute
State connector (50) external diameter be less than the reading cylinder (30) internal diameter, the connector (50) at least partially by the amount
Cheng Zhizhen (40) is arranged and is movably arranged in the reading chute (31) of the reading cylinder (30).
10. femoral stem neck length measuring appliance according to any one of claim 1 to 9, it is characterised in that the femoral stem mould
Intending shank body (10) and/or femoral stem simulation, neck is dry is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276619.XA CN104856683B (en) | 2015-05-26 | 2015-05-26 | Femoral stem neck length measuring appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276619.XA CN104856683B (en) | 2015-05-26 | 2015-05-26 | Femoral stem neck length measuring appliance |
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| Publication Number | Publication Date |
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| CN104856683A CN104856683A (en) | 2015-08-26 |
| CN104856683B true CN104856683B (en) | 2017-10-27 |
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| CN201510276619.XA Active CN104856683B (en) | 2015-05-26 | 2015-05-26 | Femoral stem neck length measuring appliance |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064861B (en) * | 2018-09-20 | 2024-02-20 | 武汉湾流科技股份有限公司 | Laparoscopic instrument forceps for laparoscopic simulation operation |
| CN109443152A (en) * | 2018-12-31 | 2019-03-08 | 天津正天医疗器械有限公司 | Cement overhauls handle neck length measuring device |
| CN109458904B (en) * | 2018-12-31 | 2024-09-20 | 天津正天医疗器械有限公司 | Biological repair handle neck length measuring device |
| CN112674918B (en) * | 2020-11-27 | 2022-08-16 | 北京市春立正达医疗器械股份有限公司 | Radian femoral stem checking fixture |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7425214B1 (en) * | 2005-03-03 | 2008-09-16 | Howmedica Osteonics Corp. | Hip arthroplasty trialing apparatus with adjustable proximal trial and method |
| CN201425808Y (en) * | 2009-05-22 | 2010-03-17 | 马若凡 | Length and angle adjustable femur model |
| CN201899583U (en) * | 2010-01-08 | 2011-07-20 | 北京爱康宜诚医疗器材股份有限公司 | Monomer femoral stem prosthesis |
| US20120143346A1 (en) * | 2010-12-01 | 2012-06-07 | Howmedica Osteonics Corp. | Modular hip stem system |
| CN202494596U (en) * | 2012-03-22 | 2012-10-17 | 夏胜利 | Specimen fixing device of femoral neck test instrument |
| US8936649B2 (en) * | 2012-09-28 | 2015-01-20 | DePuy Synthes Products, LLC | Orthopaedic hip prosthesis having femoral stem components with varying A/P taper angles |
| CN102988056B (en) * | 2012-11-28 | 2014-07-16 | 黄自强 | Measurer for measuring femoral offset in orthopedic operation |
| US9271839B2 (en) * | 2013-03-14 | 2016-03-01 | DePuy Synthes Products, Inc. | Femoral component for an implantable hip prosthesis |
| CN104068861B (en) * | 2014-07-03 | 2017-02-01 | 波纳维科（天津）医疗科技有限公司 | Thighbone length measurement device |
| CN104546234B (en) * | 2015-01-07 | 2017-01-11 | 北京爱康宜诚医疗器材有限公司 | Thighbone size measuring device |
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Address after: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee after: BEIJING AK MEDICAL Co.,Ltd. Address before: 102200 Beijing Changping District science and Technology Park No. 10 Patentee before: Beijing AKEC Medical Co.,Ltd. |
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Effective date of registration: 20190411 Address after: 213145 West Taihu Science and Technology Industrial Park, Changzhou City, Jiangsu Province, No. 9 Changyang Road, No. D2 West Taihu Medical Industry Incubation Park Patentee after: TIANYAN MEDICAL EQUIPMENT CO.,LTD. Address before: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee before: BEIJING AK MEDICAL Co.,Ltd. |
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