CN200948146Y - Surgery appliance for reducing pressure of ischemic necrosis core of femoral head - Google Patents
Surgery appliance for reducing pressure of ischemic necrosis core of femoral head Download PDFInfo
- Publication number
- CN200948146Y CN200948146Y CNU2006200357518U CN200620035751U CN200948146Y CN 200948146 Y CN200948146 Y CN 200948146Y CN U2006200357518 U CNU2006200357518 U CN U2006200357518U CN 200620035751 U CN200620035751 U CN 200620035751U CN 200948146 Y CN200948146 Y CN 200948146Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- bar
- bone
- operating theater
- theater instruments
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an operation equipment for marrow core decompression of femoral head ischemic necrosis, which comprises locating lining, a hollow lining (20) of which the inferior port butt end offsets 40-53 degree from the axle; a annular bit is constructed from a hollow straight rod (10), the inferior port butt end of the hollow straight rod (10) is provided with saw tooth (10a); a bone graft jogger is constructed from a jogger (30) and the diameter fits the inner diameter of the lining. The utility model has the advantages that the accurate locating of drilling and bone graft can come true through the lining, and the surrounding soft tissue is finely protected, the operation incision is greatly diminished and the postoperative rehabilitation of patients is easier. The bone chipping produced in the process of drilling becomes less and easy to be cleaned, intact bone tissue of necrosis zone can be taken out so that histology examination and further final diagnosis can be proceeded; compression mode bone graft can be proceeded to increase the recovery ability of bone healing.
Description
Technical field
This utility model relates to medical equipment, particularly a kind of apparatus that is used for the operation of Avascular Necrosis Of Femur Head core decompression.
Background technology
Avascular Necrosis Of Femur Head is a kind of frequently-occurring disease of orthopaedics, because its cause of disease pathogenesis is not clear, therefore brings difficulty to treatment.The operation method of the early stage Avascular Necrosis Of Femur Head of treatment that femoral head marrow core boring decompression makes it to use always.In the operation of femoral head core decompression, the apparatus that needs to use has abutment sleeve, drill bit, bone grafting push rod etc., hole at osseous tissue position, necrotic area by drill bit in the operation, abutment sleeve provides operating walk way and plays positioning action for boring, bone grafting, the osseous tissue that the bone grafting push rod is used for implanting pushes to the hole that has got out, and it is contacted with surrounding bone tissue tight.
At present, the operation of femoral head core decompression is still continued to use traditional orthopaedics hands and is stated apparatus.Existing orthopaedics is used for other operation with drill bit owing to its purpose of design more, as structurally being solid bit, electronic boring, many necrotic areas osseous tissue is drilled to chip in the boring procedure, although the therefore this drill bit purpose of decompression that can realize holing, but can not obtain complete necrotic area osseous tissue,, and will clear remaining necrotic bone tissue also pretty troublesome from the aftermentioned position so that carry out histological examination.In addition; existing orthopaedics drill bit all be not suitable in the femoral head neck region aspect length, the bit diameter size, the operation of greater trochanter of femur district; and because no suitable protective measure; usually need bigger operative incision and require fully to expose femoral trochanter, cause operative site human muscle, soft tissue injury in the boring procedure easily.Existing abutment sleeve is mainly used in the fracture internal fixation process, needing vertical with surface of bone in operation technique thereby playing head end is planar structure, enter the bar drill hole and require to do the angular direction according to femoral head incidence and femur trunk diameter during the femoral head core decompression under greater trochanter of femur, therefore existing abutment sleeve can not satisfy the requirement that the femoral head core decompression is performed the operation.Therefore up to the present, still none cover complete be used for the special-purpose operating theater instruments of femoral head core decompression operating theater instruments.
The utility model content
Technical problem to be solved in the utility model provides a kind of Avascular Necrosis Of Femur Head core decompression operating theater instruments, and this operating theater instruments has boring, bone grafting accurate positioning, and the boring characteristics that the time can take out complete necrotic area osseous tissue.
The technical scheme that its technical problem that solves this utility model adopts is: Avascular Necrosis Of Femur Head core decompression operating theater instruments of the present utility model, it is characterized in that it comprises: abutment sleeve, the sleeve that comprises a hollow, this telescopic lower port end face and its axis form 40～53 degree angles; Trepan is made of a hollow straight-bar, and the lower port end face of this hollow straight-bar is provided with sawtooth; The bone grafting push rod, the push rod suitable by a diameter and sleeve diameter constitutes.
Because telescopic lower port end face and its axis form 40～53 degree angles, after inserting, sleeve can closely keep well contacting with femoral shaft cortical bone surface of bone, and make boring decompression angle consistent with the femoral head and neck collodiaphyseal angle, make boring, bone grafting accurate positioning.Because trepan is a hollow straight-bar, therefore in boring, can take out complete necrotic area osseous tissue, the bone scraps of generation greatly reduces, and is convenient to cleaning; Can remove a strand necrotic bone tissue to greatest extent by this drilled tunnel; The diameter and the sleeve diameter of push rod are suitable, the fresh bone tissue of implanting can be pushed and suppress to be implanted to bone defective region of leaving over after sequestrum is removed and the hole that has got out, and it is contacted with surrounding bone tissue tight.
As a kind of preferred version of the present utility model,, circumferentially be arranged at intervals with positioning tooth on the described telescopic lower port end face for further increasing position stability and being convenient to operation technique.
As further optimization to above preferred version, for operative incision is reduced greatly, to help patient's postoperative rehabilitation, described abutment sleeve also comprises a diameter and the suitable core bar of telescopic internal diameter, and the lower surface of this core bar and its axis form 40～53 degree angles.
The beneficial effects of the utility model are, by sleeve can realize holing, the accurate location of bone grafting, and surrounding soft tissue played a very good protection, and operative incision reduced greatly, help patient's postoperative rehabilitation.The bone scraps that produces in the boring procedure greatly reduces, and is convenient to cleaning, can take out complete necrotic area osseous tissue, so that carry out histological examination and further clarify a diagnosis; Can finish the compression type bone grafting, increase the knitting repair ability.Simple to operate, be easy to grasp, can satisfy the needs that hospitals at different levels carry out the operation of Avascular Necrosis Of Femur Head core decompression.
Description of drawings
This description comprises following nine width of cloth accompanying drawings:
Fig. 1 is the longitudinal sectional view of trepan in the femoral head core decompression operating theater instruments;
Fig. 2 is the transverse sectional view of trepan in the femoral head core decompression operating theater instruments;
Fig. 3 is the upward view of trepan lower port end face in the femoral head core decompression operating theater instruments;
Fig. 4 is the longitudinal sectional view of abutment sleeve in the femoral head core decompression operating theater instruments;
Fig. 5 is the transverse sectional view (core bar insertion state) of abutment sleeve in the femoral head core decompression operating theater instruments;
Fig. 6 is the upward view (core bar extraction state) of the lower port end face of abutment sleeve in the femoral head core decompression operating theater instruments;
Fig. 7 is the front view of bone grafting push rod in the bone core decompression operating theater instruments;
Fig. 8 is the transverse sectional view of bone grafting push rod in the femoral head core decompression operating theater instruments;
Fig. 9 is the fit system sketch map of trepan and abutment sleeve.
Parts, toponym and pairing labelling among the figure: hollow straight-bar 10, sawtooth 10a, cross bar 11, sleeve 20, positioning tooth 20a, core bar 21, convex edge 21a, push rod 30, boss 30a.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further specified.
With reference to Fig. 1, Fig. 4 and Fig. 7, Avascular Necrosis Of Femur Head core decompression operating theater instruments of the present utility model comprises: abutment sleeve, comprise the sleeve 20 of a hollow, and the lower port end face of this sleeve 20 and its axis form 40～53 degree angles; Trepan is made of a hollow straight-bar 10, and the lower port end face of this hollow straight-bar 10 is provided with sawtooth 10a; The bone grafting push rod, the push rod 30 suitable by a diameter and sleeve 20 internal diameters constitutes.
Fig. 1, Fig. 2 and Fig. 3 show the structure of trepan.See figures.1.and.2, trepan is made of a hollow straight-bar 10, is fixed with the cross bar 11 as operating grip on the top of hollow straight-bar 10, and with reference to 3, sawtooth 10a is circumferentially uniform along the lower port end face of hollow straight-bar 10.Compare with traditional orthopaedics drill bit, the bone scraps that produces in the boring procedure greatly reduces, and is convenient to cleaning, and can take out complete necrotic area osseous tissue, so that carry out histological examination and further clarify a diagnosis.The length of hollow straight-bar 10 is compared suitable lengthening with traditional orthopaedics drill bit, so that operate under greater trochanter of femur, does not cause that the huckle influence stops operation technique under the rotor.The operation of trepan is changed into manually by electronic, increases operation safety, can avoid electric drill to penetrate femoral head easily effectively and normal bone tissues is on every side caused hot injury's deficiency because of the too fast heat production of rotating speed.
Fig. 4, Fig. 5 and Fig. 6 show the concrete structure of abutment sleeve.With reference to Fig. 4; abutment sleeve comprises the sleeve 20 of a hollow; the lower port end face of this sleeve 20 and its axis form 40～53 degree angles; when the location is protected in art like this; the ramp structure of sleeve 20 lower ends can be closely well contacts with the rotor femoral shaft cortical bone surface of bone that goes down, and realizes accurately location.With reference to Fig. 9, can set up a service aisle by sleeve 20, all operations comprise boring pressurization, get the marrow core, strike off sequestrum and impaction bone grafting etc. all finishes by this sleeve 20, and 20 can play a very good protection to surrounding soft tissue.Carry out the boring decompression of femoral head neck region along sleeve 20, meet the footpath and do the angle requirement, can enter into femoral head and neck, can not cause drilled tunnel position deflection, so that complication such as postoperative generation fracture of femoral neck by requirements of operation.With reference to Fig. 6, circumferentially be arranged at intervals with positioning tooth 20a on the lower port end face of described sleeve 20, positioning tooth 20a, structure can intercalation to the marrow in, increase position stability and be convenient to operation technique.With reference to Fig. 4 and Fig. 5, described abutment sleeve also comprises the core bar 21 that the internal diameter of a diameter and sleeve 20 is suitable, the lower surface of this core bar 21 and its axis form 40～53 degree angles, core bar 21 is positioned at sleeve 20 when otch inserts, and extracts core bars 21 out again in sleeve 20 after insertion puts in place, and core bar 21 plays a part to stop that the soft tissue around the otch enters in the sleeve 20, operative incision is reduced greatly, and help patient's postoperative rehabilitation, and go out insufficiency of blood, meet the trend of present minimally-invasive treatment.With reference to Fig. 4, be handled easily, the upper end of described core bar 21 has to extend radially outwardly and exceeds the convex edge 21a of sleeve 20 outer walls.
Fig. 7 and Fig. 8 show the concrete structure of bone grafting push rod.With reference to this two figure, the bone grafting push rod is made of the suitable push rod 30 of a diameter and sleeve 20 internal diameters, and for ease of operation, the upper end of this push rod 30 has to extend radially outwardly and exceeds the boss 30a of sleeve 20 outer walls.After boring decompression finishes to strike off sequestrum, the service aisle implantable bone tissue of setting up via sleeve 20, can be easily by the suppressing of push rod 30, the osseous tissue of implantation is closely contacted, increase knitting repair ability with boring osseous tissue on every side.
Some principles of the above this utility model Avascular Necrosis Of Femur Head core decompression operating theater instruments that just explains through diagrams, be not be this utility model Avascular Necrosis Of Femur Head core decompression operating theater instruments to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that this utility model is applied for.
Claims (7)
1. Avascular Necrosis Of Femur Head core decompression operating theater instruments is characterized in that it comprises:
A. abutment sleeve comprises the sleeve (20) of a hollow, and the lower port end face of this sleeve (20) and its axis form 40～53 degree angles;
B. trepan is made of a hollow straight-bar (10), and the lower port end face of this hollow straight-bar (10) is provided with sawtooth (10a);
C. bone grafting push rod, the push rod (30) suitable by a diameter and sleeve (20) internal diameter constitutes.
2. Avascular Necrosis Of Femur Head core decompression operating theater instruments as claimed in claim 1 is characterized in that: circumferentially be arranged at intervals with positioning tooth (20a) on the lower port end face of described sleeve (20).
3. Avascular Necrosis Of Femur Head core decompression operating theater instruments as claimed in claim 1 or 2, it is characterized in that: described abutment sleeve also comprises the core bar (21) that the internal diameter of a diameter and sleeve (20) is suitable, and the lower surface of this core bar (21) and its axis form 40～53 degree angles.
4. Avascular Necrosis Of Femur Head core decompression operating theater instruments as claimed in claim 3 is characterized in that: the upper end of described core bar (21) has to extend radially outwardly and exceeds the convex edge (21a) of sleeve (20) outer wall
5. Avascular Necrosis Of Femur Head core decompression operating theater instruments as claimed in claim 1 is characterized in that: described sawtooth (10a) is circumferentially uniform along the lower port end face of hollow straight-bar (10).
6. as claim 1 or 4 described Avascular Necrosis Of Femur Head core decompression operating theater instruments, it is characterized in that: the top of described hollow straight-bar (10) is fixed with cross bar (11).
7. Avascular Necrosis Of Femur Head core decompression operating theater instruments as claimed in claim 1 is characterized in that: the upper end of described push rod (30) has to extend radially outwardly and exceeds the boss (30a) of sleeve (20) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200357518U CN200948146Y (en) | 2006-09-27 | 2006-09-27 | Surgery appliance for reducing pressure of ischemic necrosis core of femoral head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200357518U CN200948146Y (en) | 2006-09-27 | 2006-09-27 | Surgery appliance for reducing pressure of ischemic necrosis core of femoral head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200948146Y true CN200948146Y (en) | 2007-09-19 |
Family
ID=38890682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200357518U Expired - Fee Related CN200948146Y (en) | 2006-09-27 | 2006-09-27 | Surgery appliance for reducing pressure of ischemic necrosis core of femoral head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200948146Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389329A (en) * | 2011-08-05 | 2012-03-28 | 张英泽 | Bone grafting device for tubular bone defect healing |
| CN102525606A (en) * | 2012-01-09 | 2012-07-04 | 西安交通大学 | Medullary core decompression navigator and medullary core decompression method |
| CN105708517A (en) * | 2016-04-19 | 2016-06-29 | 苏州瑞华医院有限公司 | Hollow trephine provided with push rod |
| CN110115611A (en) * | 2019-06-18 | 2019-08-13 | 复旦大学附属中山医院 | A kind of operation tool for caput femoris necrosis bone grafting |
| CN113813008A (en) * | 2021-10-22 | 2021-12-21 | 北京大学第三医院（北京大学第三临床医学院） | Bone taking and grafting device for femoral medullary hole opening |
-
2006
- 2006-09-27 CN CNU2006200357518U patent/CN200948146Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389329A (en) * | 2011-08-05 | 2012-03-28 | 张英泽 | Bone grafting device for tubular bone defect healing |
| CN102525606A (en) * | 2012-01-09 | 2012-07-04 | 西安交通大学 | Medullary core decompression navigator and medullary core decompression method |
| CN102525606B (en) * | 2012-01-09 | 2014-08-06 | 西安交通大学 | Medullary core decompression navigator and medullary core decompression method |
| CN105708517A (en) * | 2016-04-19 | 2016-06-29 | 苏州瑞华医院有限公司 | Hollow trephine provided with push rod |
| CN110115611A (en) * | 2019-06-18 | 2019-08-13 | 复旦大学附属中山医院 | A kind of operation tool for caput femoris necrosis bone grafting |
| CN110115611B (en) * | 2019-06-18 | 2024-01-26 | 山东威高骨科材料股份有限公司 | Surgical tool for femoral head necrosis bone grafting |
| CN113813008A (en) * | 2021-10-22 | 2021-12-21 | 北京大学第三医院（北京大学第三临床医学院） | Bone taking and grafting device for femoral medullary hole opening |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4964272B2 (en) | Apparatus and method for repairing articular cartilage defects | |
| US9439765B2 (en) | Method for subchondral treatment of joint pain using implantable devices | |
| JP5265577B2 (en) | A tool for orienting a tool, particularly useful as a surgical tool for harvesting and implanting bone plugs to repair damaged bone tissue | |
| JP4684274B2 (en) | System and method for reducing fractured bone using a fracture reduction cannula | |
| US5800437A (en) | Cannulated tamp and centering rod for total joint arthroplasty | |
| US5785714A (en) | Method of ACL reconstruction using double socket graft placement and fixation | |
| US8021392B2 (en) | Methods and surgical kits for minimally-invasive facet joint fusion | |
| US9248024B2 (en) | Ankle prosthesis for the arthrodesis of the calcaneum | |
| CN200948146Y (en) | Surgery appliance for reducing pressure of ischemic necrosis core of femoral head | |
| US20040034359A1 (en) | Retrograde osteochondral autograft transfer system | |
| US20110224673A1 (en) | Joint implant and prosthesis and method | |
| EP1479350A3 (en) | Intermedullary rod apparatus for repairing proximal humerus fractures | |
| WO2005037082A2 (en) | Systems, devices and apparatuses for bony fixation and disk repair and replacement and methods related thereto | |
| JP7472311B2 (en) | Intramedullary canal-preserving humerus implants and related methods - Patents.com | |
| US8778029B2 (en) | Implantable prosthesis for replacing a human hip or knee joint and the adjoining bone sections | |
| CN110115611A (en) | A kind of operation tool for caput femoris necrosis bone grafting | |
| CN210521048U (en) | Operation tool for femoral head necrosis bone transplantation | |
| CN1219494C (en) | Compression fastener in narrow of thighbone | |
| CN2607964Y (en) | Femoral intramedullary pressure fixator | |
| CN2824856Y (en) | Apparatus for implanting osteoinduction material into femoral head | |
| CN219289653U (en) | Proximal femur combined internal fixing device | |
| US10213216B2 (en) | Method and apparatus for providing arthroscopic microfracture therapy | |
| AU2007200564B2 (en) | Apparatus and method for the repair of articular cartilage defects | |
| WO2011161291A1 (en) | Femoral prosthesis extractor for checks and extraction method | |
| Paessler et al. | Revision-Femoral and Tibial Tunnel Widening (Grade III) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20110927 |