CN110013362A - A kind of high flexibility ratio is bionical all referring to joint replacement part - Google Patents

A kind of high flexibility ratio is bionical all referring to joint replacement part Download PDF

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Publication number
CN110013362A
CN110013362A CN201910357816.2A CN201910357816A CN110013362A CN 110013362 A CN110013362 A CN 110013362A CN 201910357816 A CN201910357816 A CN 201910357816A CN 110013362 A CN110013362 A CN 110013362A
Authority
CN
China
Prior art keywords
joint
bionical
referring
ontology
marrow
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.)
Pending
Application number
CN201910357816.2A
Other languages
Chinese (zh)
Inventor
李川
姚玲
李军
刘晟
白继岳
张旭林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
92nd Hospital Of Joint Logistics Support Force Of Chinese People's Liberation Army
Original Assignee
92nd Hospital Of Joint Logistics Support Force Of Chinese People's Liberation Army
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 92nd Hospital Of Joint Logistics Support Force Of Chinese People's Liberation Army filed Critical 92nd Hospital Of Joint Logistics Support Force Of Chinese People's Liberation Army
Priority to CN201910357816.2A priority Critical patent/CN110013362A/en
Publication of CN110013362A publication Critical patent/CN110013362A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/42Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4241Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/30934Special articulating surfaces
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/42Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4241Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
    • A61F2002/4251Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for metacarpo-phalangeal joints, i.e. MCP or MP joints, e.g. knuckle joints

Abstract

It is bionical all referring to joint replacement part that the invention discloses a kind of high flexibility ratios, including connector in joint ontology and marrow, it is characterized in that the joint ontology is divided into proximal joint body and distal joint body, the joint body top surface is articular surface structure, i.e. the top surface of the proximal joint body and distal joint body cooperates with the working face articulation of joint spacer respectively, the proximal joint body or distal joint body presses body biomechanics and anatomical structure designs, connector in marrow is arranged in its bottom end, and connector is separate assembling vertebra shape structure in the marrow.The present invention is based on body biomechanics principle, the bionical conformal performance all referring to joint replacement component of exploitation is more preferable, and joint ontology is stronger in conjunction with osteotomy surface.The present invention more meets body biomechanics structure, and mechanical engagement is good, low in cost, and clinical applicability is good, and the postoperative function of patient restores good, and either incipient stability or stabilization at a specified future date significantly improves, and the safe-use period greatly extends.

Description

A kind of high flexibility ratio is bionical all referring to joint replacement part
Technical field
The invention belongs to orthopedic instrument technical fields, and in particular to a kind of high flexibility ratio that is structurally reasonable, being equipped with simplicity is imitative Life is all referring to joint replacement part.
Background technique
People inevitably will receive in daily production and life process and surprisingly cause palm bone and phalangeal fracture, or because The diseases such as rheumatoid lead to palm articulations digitorum manus limitation of activity, or even lose normal physiological function.Best improvement metacarpophalangeal joints The therapeutic modality of function is exactly that artificial prosthesis progress joint replacement is still replaced, not only initial stability with existing prosthese It is bad, and Bone Ingrowth is bad causes long-time stability also bad.With carrying out long term follow-up, aforementioned disadvantage after existing prosthesis replacement End more highlights, so not designing a kind of metacarpophalangeal joints prosthese of maturation yet.The reason is that prosthetic joint face Conformal performance is poor, and the connection structure of faying face is unreasonable, and marrow inner part stability is poor, leads to the generation of above-mentioned ill effect.This hair For the deficiencies of the prior art, exploitation more meets body biomechanics structure to bright people, and mechanical engagement is good, low in cost, conformal Property good and resistance to affixed Bionic fingers joint replacement component instead of the prosthese of the prior art be overcome prior art defect effective Mode.
Summary of the invention
The purpose of the present invention is to provide one kind more to meet body biomechanics structure, and mechanical engagement is good, low in cost The bionical metacarpophalangeal joints Replacement Part of high flexibility ratio.
The object of the present invention is achieved like this, and the bionical high flexibility ratio all referring to joint replacement part includes joint ontology With connector in marrow, the joint ontology is divided into proximal joint body and distal joint body, and the joint body top surface is to close The top surface of nodal section structure, i.e., described proximal joint body and distal joint body respectively with the working face articulation of joint spacer Cooperation, the proximal joint body or distal joint body press body biomechanics and anatomical structure designs, bottom end setting Connector in marrow, connector is separate assembling vertebra shape structure in the marrow.
The present invention is based on body biomechanics principle, the conformal performance of the bionical metacarpophalangeal joints displacement component of exploitation is more preferable, closes Abridged edition body is stronger in conjunction with osteotomy surface.The present invention more meets body biomechanics structure, and mechanical engagement is good, low in cost, Clinical applicability is good, and the postoperative function of patient restores good, and the safe trial period greatly extends.
Detailed description of the invention
Fig. 1 is overall structure of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the main view of joint pad;
Fig. 4 is the main view of joint pad another embodiment;
The main view of Fig. 5 for joint pad three kinds of embodiments;
Figure label: 1~joint ontology, connector in 2~marrow, 3~expansion body, 4~expansion push rod, 5~expansion guide groove, 6~pushing assisted plate, 7~joint body central screw hole, 8~articular surface structure, 9~position limiting pile, 10~expansion thrust hole, 11~fixed Hangnail, 12~joint spacer, 13~limit card slot, 14~threaded hole, 15~position limiting pile.
Specific embodiment
The present invention will be further described below with reference to the drawings, but the present invention is limited in any way, base In present invention teach that made any transformation or displacement, all belong to the scope of protection of the present invention.
As shown in attached drawing 1~5, bionical high flexibility ratio of the present invention all referring to joint replacement part includes 1 He of joint ontology Connector in marrow, the joint ontology 1 divide for proximal joint body and distal joint body, and 1 top surface of joint ontology is to close The top surface of nodal section structure 8, i.e., described proximal joint body and distal joint body respectively with the working face articulated type of joint spacer 12 Activity cooperation, the proximal joint body or distal joint body press body biomechanics and anatomical structure designs, bottom end Connector 2 in marrow is set, and connector 2 is separate assembling vertebra shape structure in the marrow.
1 top surface of proximal joint ontology is that articular surface structure 8 is arc-shaped, and in front and back arc arch face, left and right is flat Directly, i.e., articular surface structure 8 is single cambered surface oncus shape, and joint motion is arranged in the articular surface structure 8 of 1 top surface of joint ontology Position limiting pile 9, position limiting pile is set for the eccentric, and is symmetrical set other side position limiting pile 15 with 1 top surface of joint ontology;Distal joint sheet The articular surface structure 8 of body top surface is ellipse, and articular surface is straight, is engaged by clamping with the card slot in joint spacer 12.
The articular surface structure 8 of 1 top surface of joint ontology is single cambered surface oncus shape, and its circular arc curvature radius is 4 ~12mm;The axial setting screw hole of the joint ontology 1, is provided with the pushing assisted plate 6 of screw hole cooperation;The setting of 6 center of pushing assisted plate Card slot, and it is equipped with expansion push rod 4, expansion 4 lower section of push rod is threadedly engaged with expansion body 3.
The articular surface structure 8 is single cambered surface oncus shape, and its circular arc curvature radius is 5~7mm.
The separate assembling vertebra shape structure of connector 2 is led in symmetrical interior guide barrel construction, the expansion in the marrow Slot 5 is slidably matched with expansion body 3.
Guide barrel construction is integrally in the narrow pyramidal structure in the wide distal end in proximal end within connector 2 in the marrow, and with trapezoidal knot The work cooperation of structure expansion body 3;For the expansion body 3 in narrow trapezoidal in the wide distal end in proximal end, cone angle is 3~20 °.
Fixed hangnail 11 is set on the outside of the cone latter end of connector 2 in the marrow.
The joint spacer 12 is provided with and the position limiting pile 9 on proximal joint body, the position limiting pile 15 on distal joint body The limit card slot 13 of cooperation, the limit card slot 13 are correspondingly arranged with position limiting pile.
The axial setting screw hole of the joint ontology 1 simultaneously cooperates with pushing assisted plate 6;Pushing assisted plate 6 is provided centrally with expansion push rod 4 The screw hole of cooperation, expansion 4 lower section of push rod and expansion body 3 are engaged by clamping.
The joint spacer 12 is provided centrally with and the body concentric threaded hole 14 of distal joint sheet.
12 one side of joint spacer is recessed ellipse arc, and radius of curvature is 1~2cm, this face and proximal joint Body fits joint motion, another side are oval flat shape, are connected with distal joint ontology.
Pure titanium coating is arranged in 1 surface of joint ontology, and passes through polishing treatment;Connector 2 is by nickel in the marrow The production of titanium memorial alloy;Joint spacer 12 is the production of high molecular polythene material.
Pure titanium coating is arranged in 1 surface of joint ontology, and passes through polishing treatment;Connector 2 is by nickel in the marrow The production of titanium memorial alloy.
Parallel limit card slot is arranged in Fig. 3 rotational symmetry, is engaged by clamping with position limiting pile;It is provided in auxiliary marrow and connects gymnastics The circular hole of work.Remarks: Fig. 4, Fig. 5 cannot be used for clinic, keep range of motion more limited.
Working principle and the course of work of the present invention:
The present invention is based on body biomechanics principles, so that the entirety and mating surface of bionical metacarpophalangeal joints displacement component more accord with Green bone structure feature is closed, while guaranteeing that displacement component is stronger in conjunction with osteotomy end, initial stability is more preferable, and bone of being more convenient for is raw It is long, holding member it is affixed it is steady in a long-term with it is secured, reduce the pain of patient.
For all referring to articular fracture defect or rheumatisant, when replacing component using the present invention, apolegamy is suitable first Model carries out distribution type all referring to joint especially for hand.The surface of a wound is repaired, corrects, be adapted to repeatedly, first connection in adjusting marrow Intracorporal expansion push rod makes to expand block retrogressing, and the precentrum of connector is shunk in marrow, to be put into severed finger ossis, and with After ossis is sufficiently bonded, the intracorporal expansion push rod of connection in marrow is adjusted again, expansion block is pushed inward, so that cone is to two Side expansion is fitted closely with pulp cavity inner wall using the fixed thorn of distal end, is prevented to reach further with ossis inner face secure fit The effect only extracted outward.
This Replacement Part is needed replacing Ru postoperative, it is only necessary to be adjusted expansion push rod 4 and be exited block 3 is expanded, cone is shunk, displacement Part can take out out of pulp cavity, the Replacement Part more renewed.When using another embodiment, expansion push rod 4 and expansion block 3 are clampings Cooperation, as long as rotary expansion push rod 4 can pull out expansion block counterclockwise.If expanding push rod 4 with expansion block 3 is that apical grafting is matched It closes, unscrewing retrogressing expansion push rod 4 can also be such that expansion block exits.

Claims (10)

1. a kind of high flexibility ratio is bionical all referring to connector in joint replacement part, including joint ontology (1) and marrow, it is characterised in that institute The joint ontology (1) stated is divided into proximal joint body and distal joint body, and joint ontology (1) top surface is articular surface structure (8), i.e., the top surface of described proximal joint body and distal joint body working face articulation with joint spacer (12) respectively Cooperation, the proximal joint body or distal joint body press body biomechanics and anatomical structure designs, bottom end setting Connector (2) in marrow, connector (2) is separate assembling vertebra shape structure in the marrow.
2. high flexibility ratio according to claim 1 is bionical all referring to joint replacement part, it is characterised in that the proximal joint Ontology (1) top surface is that articular surface structure (8) are arc-shaped, and in front and back arc arch face, left and right is straight, i.e. articular surface structure (8) Joint motion position limiting pile (9) are arranged in articular surface structure (8) for single cambered surface oncus shape, described joint ontology (1) top surface, limit Position stake is set for the eccentric, and is symmetrical set other side position limiting pile (15) with joint ontology (1) top surface;Distal joint body top surface Articular surface structure (8) be ellipse, articular surface is straight, on joint spacer (12) card slot be engaged by clamping.
3. high flexibility ratio according to claim 1 or 2 is bionical all referring to joint replacement part, it is characterised in that the joint sheet The articular surface structure (8) of body (1) top surface is single cambered surface oncus shape, and its circular arc curvature radius is 4~12mm;The joint Screw hole is axially arranged in ontology (1), is provided with the pushing assisted plate (6) of screw hole cooperation;Card slot is arranged in pushing assisted plate (6) center, and cooperates It is provided with expansion push rod (4), expansion push rod (4) lower section is threadedly engaged with expansion body (3).
4. high flexibility ratio according to claim 1 is bionical all referring to joint replacement part, it is characterised in that connection in the marrow The separate assembling vertebra shape structure of body (2) is slided in symmetrical interior guide barrel construction, the expansion guide groove (5) and expansion body (3) Cooperation.
5. high flexibility ratio according to claim 1 or 4 is bionical all referring to joint replacement part, it is characterised in that connect in the marrow Guide barrel construction is integrally in the narrow pyramidal structure in the wide distal end in proximal end within junctor (2), and is matched with trapezium structure expansion body (3) work It closes;For the expansion body (3) in narrow trapezoidal in the wide distal end in proximal end, cone angle is 3~20 °.
6. high flexibility ratio according to claim 1 or 4 is bionical all referring to joint replacement part, it is characterised in that connect in the marrow Fixed hangnail (11) are set on the outside of the cone latter end of junctor (2).
7. high flexibility ratio according to claim 1 is bionical all referring to joint replacement part, it is characterised in that the joint spacer (12) it is provided with the limit card slot with the position limiting pile (9) on proximal joint body, the cooperation of the position limiting pile (15) on distal joint body (13), the limit card slot (13) is correspondingly arranged with position limiting pile.
8. high flexibility ratio according to claim 1 or claim 7 is bionical all referring to joint replacement part, it is characterised in that the joint sheet Body (1) is axially arranged screw hole and cooperates with pushing assisted plate (6);Pushing assisted plate (6) is provided centrally with the screw hole of expansion push rod (4) cooperation, It expands push rod (4) lower section and expansion body (3) is engaged by clamping.
9. high flexibility ratio according to claim 1 or claim 7 is bionical all referring to joint replacement part, it is characterised in that the joint lining Pad (12) is recessed ellipse arc on one side, and radius of curvature is 1~2cm, this face and proximal joint body fits joint motion, separately It is on one side oval flat shape, is connected with distal joint ontology.
10. high flexibility ratio according to claim 1 or 2 is bionical all referring to joint replacement part, it is characterised in that the joint Pure titanium coating is arranged in ontology (1) surface, and passes through polishing treatment;Connector (2) is made by Ultimum Ti in the marrow; Joint spacer (12) is the production of high molecular polythene material.
CN201910357816.2A 2019-04-26 2019-04-26 A kind of high flexibility ratio is bionical all referring to joint replacement part Pending CN110013362A (en)

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Application Number Priority Date Filing Date Title
CN201910357816.2A CN110013362A (en) 2019-04-26 2019-04-26 A kind of high flexibility ratio is bionical all referring to joint replacement part

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Application Number Priority Date Filing Date Title
CN201910357816.2A CN110013362A (en) 2019-04-26 2019-04-26 A kind of high flexibility ratio is bionical all referring to joint replacement part

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702472A (en) * 1996-12-26 1997-12-30 Huebner; Randall J. Phalangeal finger joint prosthesis and method
JP2964035B1 (en) * 1998-05-21 1999-10-18 有限会社エイド−ル Fixed structure of artificial joint
US20030040805A1 (en) * 2001-08-27 2003-02-27 Yoshitaka Minamikawa Artificial joint
US20060100715A1 (en) * 2002-09-19 2006-05-11 De Villiers Malan Arthroplasty implant
US20070185584A1 (en) * 2006-02-02 2007-08-09 Kaufmann Robert A Small joint hemiarthroplasty
US20100161068A1 (en) * 2007-07-09 2010-06-24 Zrinski Ag Prosthesis for part of a joint, with an expandable shaft
CN105078621A (en) * 2015-09-21 2015-11-25 徐永清 Nickel-titanium alloy artificial total-wrist joint prosthesis with intramedullary barb
CN105832449A (en) * 2016-06-08 2016-08-10 李川 Solidly connected high wear-resistant interphalangeal joint prosthesis
CN106073955A (en) * 2016-06-08 2016-11-09 李川 A kind of high abrasion interphalangeal joint prosthese of stable connection
WO2019009929A1 (en) * 2017-07-03 2019-01-10 David Scott Nutter Systems and methods for designing and manufacturing orthopedic joint replacement implants and their instruments
CN210541941U (en) * 2019-04-26 2020-05-19 中国人民解放军联勤保障部队第九二〇医院 High-flexibility bionic total-finger joint replacement part

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702472A (en) * 1996-12-26 1997-12-30 Huebner; Randall J. Phalangeal finger joint prosthesis and method
JP2964035B1 (en) * 1998-05-21 1999-10-18 有限会社エイド−ル Fixed structure of artificial joint
US20030040805A1 (en) * 2001-08-27 2003-02-27 Yoshitaka Minamikawa Artificial joint
US20060100715A1 (en) * 2002-09-19 2006-05-11 De Villiers Malan Arthroplasty implant
US20070185584A1 (en) * 2006-02-02 2007-08-09 Kaufmann Robert A Small joint hemiarthroplasty
US20100161068A1 (en) * 2007-07-09 2010-06-24 Zrinski Ag Prosthesis for part of a joint, with an expandable shaft
CN105078621A (en) * 2015-09-21 2015-11-25 徐永清 Nickel-titanium alloy artificial total-wrist joint prosthesis with intramedullary barb
CN105832449A (en) * 2016-06-08 2016-08-10 李川 Solidly connected high wear-resistant interphalangeal joint prosthesis
CN106073955A (en) * 2016-06-08 2016-11-09 李川 A kind of high abrasion interphalangeal joint prosthese of stable connection
WO2019009929A1 (en) * 2017-07-03 2019-01-10 David Scott Nutter Systems and methods for designing and manufacturing orthopedic joint replacement implants and their instruments
CN210541941U (en) * 2019-04-26 2020-05-19 中国人民解放军联勤保障部队第九二〇医院 High-flexibility bionic total-finger joint replacement part

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