CN106361470A - Distal radioulnar joint prosthesis - Google Patents

Distal radioulnar joint prosthesis Download PDF

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Publication number
CN106361470A
CN106361470A CN201610794906.4A CN201610794906A CN106361470A CN 106361470 A CN106361470 A CN 106361470A CN 201610794906 A CN201610794906 A CN 201610794906A CN 106361470 A CN106361470 A CN 106361470A
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CN
China
Prior art keywords
described
prosthese
characterised
distal radioulnar
ring
Prior art date
Application number
CN201610794906.4A
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Chinese (zh)
Other versions
CN106361470B (en
Inventor
任晓平
韩克诚
Original Assignee
哈尔滨医科大学
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Priority to CN201610794906.4A priority Critical patent/CN106361470B/en
Publication of CN106361470A publication Critical patent/CN106361470A/en
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Publication of CN106361470B publication Critical patent/CN106361470B/en

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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
    • A61F2/42Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4261Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists
    • 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
    • A61F2/4261Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists
    • A61F2002/4266Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for wrists for ulno-carpal joints

Abstract

The invention discloses a distal radioulnar joint prosthesis, which comprises a spoke bone part and an ulna handle, wherein the spoke bone part and the ulna handle are rotationally connected; the spoke bone part is of a triangular structure. The distal radioulnar joint prosthesis has the advantages that the stability is high; the interference with peripheral tissues can reach the smallest degree; simplicity is realized; the operation is easy.

Description

Distal radioulnar ioint prosthese

Technical field

The present invention relates to a kind of distal radioulnar ioint prosthetic device, more particularly to a kind of distal radioulnar ioint prosthese.

Background technology

How distal radioulnar ioint shakiness is processed is the problem that current orthopaedics and handss surgeon pay special attention to.Distal radioulnar ioint Belong to trochoid, articular surface Incomplete matching, need the soft tissue structures such as ligament and muscle to maintain its stability.Distal radioulnar ioint Unstable species is various, and methods for diagnosis and treatment is complicated, and uncertain therapeutic efficacy is cut.Piece can be taken the photograph through x line, the clear and definite bone of ct damages in diagnosis Wound, through the clear and definite soft tissue such as mri, arthroscope, particularly tfcc damages.Unstable to acute distal radioulnar ioint, major part can adopt Expectant treatment;Tfcc is damaged, surgical incision or Arthroscopic Treatment can be adopted;To the outside far end bone of radius with fracture of processus styloideus ulnae Folding is unstable, can use tension band wire fixation for treatment;Unstable to chronic distal radioulnar ioint, soft tissue reconstruction art can be adopted;To chi Unstable caused by bone disappearance, artificial joint replacement can be adopted.

There are a lot of problems, for example in existing distal radioulnar ioint reconstruction operation: the bone injured patient of ulna and radius is single Pure ligament complex also has rotating percussion pain, the Cranial defect that severe trauma leads to or be difficult to recover joint integrity Damage all can not be recovered well.

Content of the invention

The technical problem to be solved in the present invention is to provide a kind of device safely, securely in order to rebuild distal radioulnar ioint.

For reaching above-mentioned purpose, articular prosthesis scratched by the lower chi of the present invention, and it includes radial section and ulna handle, this radial section It is rotatably connected with this ulna handle, and this radial section structure triangular in shape.

Preferably, described radial section includes annular construction member, upper bracket, lower carriage and connects the oblique of described upper and lower support Staple, described upper and lower support is fixedly connected with this annular construction member, and described upper and lower support and oblique nail form triangular structure.

Preferably, described ulna handle is connected with described radial section by described annular construction member.

Preferably, the internal ring transverse section of described annular construction member is hexagonal.

Preferably, one end of described ulna handle has the hexagonal connector in cross section.

Preferably, this prosthese also include use when fit described annular construction member the first annular liner of inwall and laminating institute State the second ring lining of the outer wall of the connector of ulna handle, and the internal ring of the periphery of first annular liner and the second ring lining Transverse section all hexagonal, the transverse section of the periphery of the internal ring of first annular liner and the second ring lining is all rounded, Second ring liner is used for inserting in first annular liner so that described radial section is rotatably connected with described ulna handle.

Preferably, the lower section of the connector of described ulna handle is provided with the described first annular liner of support, the second ring lining And the support member of annular construction member.

Preferably, described radial section and ulna handle are made up of biocompatible materialses.

Preferably, described biocompatible materialses are titanium or titanium alloy, high-molecular polythene.

Preferably, first and second ring lining described is polyethylene packing ring.

The invention difference from existing technology is that the present invention achieves following technique effect: the lower chi oar of the present invention closes Section prosthese stability is high, can minimally disturb the tissue of surrounding, and simple to operation.

The invention will be further described below in conjunction with the accompanying drawings.

Brief description

Fig. 1 is the structural representation of the radial section of distal radioulnar ioint prosthese of the present invention;

Fig. 2 is the structural representation of the ulna handle of distal radioulnar ioint prosthese of the present invention;

Fig. 3 is by the schematic diagram after the distal radioulnar ioint Using prosthesis of the present invention.

Specific embodiment

With reference to embodiments, the above-mentioned He other technical characteristic of the present invention and advantage are described in more detail.

Refer to Fig. 1 and Fig. 2, articular prosthesis scratched by the lower chi of the present invention, and it includes radial section 10 and ulna handle 20, radius Part 10 is rotatably connected with ulna handle 20, and this radial section 10 structure triangular in shape.

In one embodiment, radial section 10 include annular construction member 11, upper bracket 13, lower carriage 12 and connect described upper, The oblique nail 14 of lower carriage, upper and lower support 13,12 is fixedly connected with annular construction member 11, and upper and lower support and oblique nail form three Angular structure.The internal ring transverse section of annular construction member 11 is hexagonal.Ulna handle 20 passes through annular construction member 11 with radial section 10 even Connect, and ulna handle 20 can rotate in annular construction member 11.

One end of ulna handle 20 has the hexagonal connector in transverse section 22, also hexagonal for inserting transverse section It is connected with radial section 10 in annular construction member 11.

For reducing the metal direct friction between the connector 22 of ulna handle 20 and annular construction member 11, the prosthese of the present invention is also Connector 22 including the first annular liner (not shown) of the inwall of laminating annular construction member 11 and laminating ulna handle 20 when using Outer wall the second ring lining (not shown), and the transverse section of the internal ring of the periphery of first annular liner and the second ring lining All hexagonal, to fit with the inwall of annular construction member 11 and the periphery of connector 22 to realize ring lining is consolidated respectively Fixed;The transverse section of the periphery of the internal ring of first annular liner and the second ring lining is all rounded, and the second ring lining is used for inserting Enter in first annular liner so that radial section 10 is rotatably connected with ulna handle 20.

In addition, the lower section of the connector 22 of ulna handle 20 is provided with the first annular liner of support, the second ring lining and annular The support member 24 of component 11.

Radial section and ulna handle are made up of biocompatible materialses, including titanium or titanium alloy, high-molecular polythene.First And second ring lining select high-molecular polythene packing ring.Remaining prosthetic appliance is titanium matter.

The method for implantation of prosthese of the present invention is as follows: does stringer otch in wrist, separates soft tissue and appear distal radioulnar ioint, cut Except head of ulna far-end 2cm;By Fig. 1 assembly squeeze into distal radiuses (above distal radiuses ulnar osteotomies back plane 1cm level, Horizontal drilling on radius, squeezes into prosthese, the diagonal fixing screws of lower section is twisted such as, forms triangle rock-steady structure), its ring part Divide above just to the pulp cavity after ulnar osteotomies;Fig. 2 assembly is squeezed into ulna pulp cavity after ring, as shown in Figure 3.

The distal radioulnar ioint prosthese of the present invention is made up of two parts it is easy to implant, and recovers significantly to increase while forearm function Plus grip, pain scores reduction.Handss (dash) scoring improves, but still very high.

Embodiment described above is only that the preferred embodiment of the present invention is described, the not model to the present invention Enclose and be defined, on the premise of without departing from design spirit of the present invention, the technical side to the present invention for the those of ordinary skill in the art Various modifications and improvement that case is made, all should fall in the protection domain of claims of the present invention determination.

Claims (10)

1. a kind of lower chi scratches articular prosthesis it is characterised in that including radial section and ulna handle, this radial section and this ulna handle It is rotatably connected, and this radial section structure triangular in shape.
2. distal radioulnar ioint prosthese as claimed in claim 1 is it is characterised in that described radial section includes annular construction member, above props up Frame, lower carriage and the oblique nail connecting described upper and lower support, described upper and lower support is fixedly connected with this annular construction member, and described Upper and lower support and oblique nail form triangular structure.
3. distal radioulnar ioint prosthese as claimed in claim 2 it is characterised in that described ulna handle pass through described annular construction member with Described radial section connects.
4. distal radioulnar ioint prosthese as claimed in claim 2 is it is characterised in that the internal ring transverse section of described annular construction member is in six Side shape.
5. distal radioulnar ioint prosthese as claimed in claim 4 is it is characterised in that one end of described ulna handle has cross section is in Hexagonal connector.
6. distal radioulnar ioint prosthese as claimed in claim 5 is it is characterised in that this prosthese also includes fitting described ring when using Second ring lining of the outer wall of connector of the first annular liner of the inwall of shape component and described ulna handle of fitting, and first The transverse section of the internal ring of the periphery of ring lining and the second ring lining is all hexagonal, the internal ring of first annular liner and second The transverse section of the periphery of ring lining is all rounded, and the second ring lining is used for inserting in first annular liner so that described radius Part is rotatably connected with described ulna handle.
7. distal radioulnar ioint prosthese as claimed in claim 6 is it is characterised in that the lower section of the connector of described ulna handle is provided with Support the support member of described first annular liner, the second ring lining and annular construction member.
8. the distal radioulnar ioint prosthese as any one of claim 1-7 is it is characterised in that described radial section and ulna Handle is made up of biocompatible materialses.
9. distal radioulnar ioint prosthese as claimed in claim 8 is it is characterised in that described biocompatible materialses are titanium and titanium closes Gold, high-molecular polythene.
10. distal radioulnar ioint prosthese as claimed in claim 6 is it is characterised in that first and second ring lining described is poly- second Alkene packing ring.
CN201610794906.4A 2016-08-31 2016-08-31 Distal radioulnar ioint prosthese CN106361470B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610794906.4A CN106361470B (en) 2016-08-31 2016-08-31 Distal radioulnar ioint prosthese

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610794906.4A CN106361470B (en) 2016-08-31 2016-08-31 Distal radioulnar ioint prosthese

Publications (2)

Publication Number Publication Date
CN106361470A true CN106361470A (en) 2017-02-01
CN106361470B CN106361470B (en) 2018-03-30

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Family Applications (1)

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CN201610794906.4A CN106361470B (en) 2016-08-31 2016-08-31 Distal radioulnar ioint prosthese

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5951604A (en) * 1997-12-31 1999-09-14 Avanta Orthopedics, Inc. Distal radioulnar joint prosthesis
WO2001001892A1 (en) * 1999-07-02 2001-01-11 Van Straten Research & Development B.V. Distal radioulnar joint prosthesis
CN1823692A (en) * 2005-02-22 2006-08-30 于海鹰 Artificial revolving joint used for ulna
US8052757B1 (en) * 2005-10-13 2011-11-08 Aptis Medical, Llc Combined total wrist and total distal radioulnar joint prosthesis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5951604A (en) * 1997-12-31 1999-09-14 Avanta Orthopedics, Inc. Distal radioulnar joint prosthesis
WO2001001892A1 (en) * 1999-07-02 2001-01-11 Van Straten Research & Development B.V. Distal radioulnar joint prosthesis
CN1823692A (en) * 2005-02-22 2006-08-30 于海鹰 Artificial revolving joint used for ulna
US8052757B1 (en) * 2005-10-13 2011-11-08 Aptis Medical, Llc Combined total wrist and total distal radioulnar joint prosthesis

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Publication number Publication date
CN106361470B (en) 2018-03-30

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