CN104546034B - A kind of medical extraction apparatus for head of femur - Google Patents
A kind of medical extraction apparatus for head of femur Download PDFInfo
- Publication number
- CN104546034B CN104546034B CN201410844657.6A CN201410844657A CN104546034B CN 104546034 B CN104546034 B CN 104546034B CN 201410844657 A CN201410844657 A CN 201410844657A CN 104546034 B CN104546034 B CN 104546034B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- head
- fixed mechanism
- clamping fixed
- extraction apparatus
- 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
- 238000000605 extraction Methods 0.000 title claims abstract description 18
- 210000000689 upper leg Anatomy 0.000 title claims abstract description 18
- 238000010079 rubber tapping Methods 0.000 claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 abstract description 9
- 210000004394 hip joint Anatomy 0.000 abstract description 4
- 238000001356 surgical procedure Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 230000003902 lesion Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 210000000588 acetabulum Anatomy 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000002391 femur head Anatomy 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 206010020718 hyperplasia Diseases 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1664—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip
- A61B17/1668—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the hip for the upper femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of medical extraction apparatus for head of femur, belong to bone surgery medical instruments field.Used when being performed the operation suitable for clinical orthopaedicses artificial hip joint replacing.Including connecting rod, one end of connecting rod is handle, and the other end is the tapping screw thread head integral with it；Auxiliary clamping fixed mechanism is provided with above tapping screw thread head in connecting rod；Described auxiliary clamping fixed mechanism be one centered on connecting rod protruding four bars cross structure, be respectively provided with a screwed hole on 4 bars of cross structure.Tapping screw thread head tip is pierced into section of collum femoris when using, tapping screw thread head is screwed in cancellous bone, then by the screwed hole in cross structure is screwed into femoral head with lock screw by pressurization, and then carrying handle is that can be taken off femoral head.The extraction apparatus for head of femur is simple in construction, easy to operate, does not damage acetabular bone, can effectively reduce femoral head and take out difficulty, reduce operating time, it is ensured that operation is smoothed out.
Description
Technical field
The invention belongs to technical field of medical instruments, more particularly to a kind of medical extraction apparatus for head of femur.It is mainly used in clinic
Orthopaedics artificial hip joint replacing is used when performing the operation.
Background technology
At present, artificial total hip arthroplasty and artificial femoral head replacement are that the whole latter stage lesion for the treatment of hip joint is most effective
Means., it is necessary to take out the femoral head of lesion in surgical procedure, implantable artificial hip joint.Because lesion femoral head is by week
Soft tissue and ligament protection are enclosed, lesion femoral head in hyperplasia and hardening, surgical procedure is added and is often difficult to take out.
In the prior art, doctor is screwed into one piece of screw into cancellous bone of femoral head usually using spiral shape catcher is similar
Nail, then carrying handle taking-up femoral head, in order to hold femoral head, prevents rotation, it is necessary to firmly beat into catcher, easily causes
Femoral head and acetabulum injuries, and coping screw is shallow, it is weaker to bone hold, easily deviate from during lifting, make to take head to fail.
Publication No. CN2256709Y utility model patent discloses a kind of screw extraction apparatus for head of femur, its front end
The resistance that helical form head is screwed into bone tissue is big, and the hold to bone tissue is not enough.Publication No. CN103876810A doctor
A device is taken with femoral head, described in its paragragh of specification 0007, " in use, the pointed tooth of barrel forward end is inserted into femoral head
Surface, you can obtain the hold to femoral head, prevent femoral head from rotating, " in practical operation, because the sclerotin of femoral head is hard
Degree is higher, and it is difficult to insert pointed tooth in femoral head surfaces to be in the case where not applying pressure separately, is to realize.
The content of the invention
It is an object of the invention to provide a kind of medical extraction apparatus for head of femur, stable femoral head, raising can be played and take head
The hold of device, so as to solve problem present in above-mentioned background technology.
The purpose of the present invention is achieved through the following technical solutions：A kind of medical extraction apparatus for head of femur, including connecting rod,
One end of connecting rod is handle, and the other end is the tapping screw thread head integral with it, it is characterised in that：The tapping screw thread in connecting rod
The top of head is provided with auxiliary clamping fixed mechanism；Described auxiliary clamping fixed mechanism is one outside centered on connecting rod
The cross structure of four bars is stretched out, a screwed hole is respectively provided with the outer end of 4 bars of cross structure, in addition to coordinate with screwed hole
The threaded lock screw in head, lock screw is screwed into femoral head by screwed hole realize to femoral head hold prevent it
Rotate.
Tapping screw thread head tip is pierced into section of collum femoris when using, pressurization screws in tapping screw thread head in cancellous bone, then
Being screwed into femoral head by the screwed hole in cross structure with lock screw prevents it from rotating, and then carrying handle is that can be taken off femur
Head.
The beneficial effects of the invention are as follows：The medical extraction apparatus for head of femur is simple in construction, easy to operate, can be effectively reduced stock
Bone takes out difficulty, reduces operating time, it is ensured that operation is smoothed out.
Brief description of the drawings
Fig. 1 is one embodiment of the present of invention structural representation；
Fig. 2 is Fig. 1 right view；
Fig. 3 is an alternative embodiment of the invention structural representation；
Fig. 4 is auxiliary clamping fixed mechanism structural representation.
Fig. 5 is auxiliary clamping another embodiment schematic diagram of fixed mechanism structure.
In figure：1st, tapping screw thread head；3rd, handle；2nd, connecting rod；2.1st, tapped through hole；4th, auxiliary clamping fixed mechanism；
4.1st, mounting hole；4.2nd, screwed hole；4.3rd, lock screw；5th, installing pipe.
Embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Embodiment, a kind of medical extraction apparatus for head of femur, including connecting rod 2 as depicted in figs. 1 and 2, one end of connecting rod is
Handle 3, the other end is the tapping screw thread integral with it first 1, is provided with an additional lock above tapping screw thread head in connecting rod
Hold fixed mechanism 4；Auxiliary clamping fixed mechanism be one centered on connecting rod protruding four bars cross structure, with being connected
Bar 2 is in integrative-structure；The upper and lower end face of 4 bars of described auxiliary clamping fixed mechanism is flat；At 4 of cross structure
The outer end of bar is respectively provided with a screwed hole 4.2.Also include the threaded lock screw 4.3 coordinated with screwed hole 4.2, will lock
Screw be screwed into by screwed hole 4.2 in femoral head realize to femoral head hold prevent it from rotating.
Embodiment 2
A kind of another embodiment as shown in Figure 3 and Figure 4, medical extraction apparatus for head of femur includes connecting rod 2, one end of connecting rod
It is handle 3, the other end is the tapping screw thread integral with it first 1, is provided with an auxiliary above tapping screw thread head in connecting rod 2
Grip mechanism 4；Described auxiliary clamping fixed mechanism is detachably connected with connecting rod 2.Auxiliary clamping fixed mechanism is one
Flat cross structure, its center is provided with the mounting hole 4.1 coordinated with connecting rod, and auxiliary clamping fixed mechanism 4 is by installing
Hole 4.1 is set with and is fixed in connecting rod 2 and is detachably connected with connecting rod.
The present embodiment is provided with least two screw thread being arranged above and below in described connecting rod 2 and led to above tapping screw thread head
Hole 2.1, for adjusting upper-lower position of the auxiliary clamping fixed mechanism in connecting rod 2.And it is symmetrical in auxiliary clamping fixed mechanism
Both sides be provided with 2 symmetrical screwed holes, by penetrating connecting rod upper tapped through hole 2.1 and auxiliary clamping fixed mechanism both sides spiral shell
The screw of pit will aid in clamping fixed mechanism to be fixed in connecting rod 2.Can also in described connecting rod 2 tapping screw thread head
Top both sides be respectively provided with least two tapped blind hole being arranged above and below, auxiliary clamping fixed mechanism is by being threaded into hole and company
Screw on extension bar in tapped blind hole will aid in clamping fixed mechanism to be fixed in connecting rod.
2 embodiments of the above are suitable for the situation that auxiliary clamping fixed mechanism thickness is more than 5mm.
Embodiment 3
Another embodiment as shown in Figure 5, auxiliary clamping fixed mechanism is a flat cross structure, its center be provided with
There is the installing pipe 5 that an internal diameter vertically upward coordinates with connecting rod on the mounting hole that connecting rod coordinates, mounting hole, in installing pipe 5
Tube wall on be provided with symmetrical two screwed holes, be provided with what is be arranged above and below above tapping screw thread head in described connecting rod 2
At least two tapped through hole, auxiliary clamping fixed mechanism is sleeved in connecting rod, by penetrating the upper screwed hole of installing pipe 5 and connection
The screw of bar upper tapped through hole will aid in clamping fixed mechanism to be fixed in connecting rod 2.
Claims (7)
1. a kind of medical extraction apparatus for head of femur, including connecting rod, one end of connecting rod is handle, the other end be with its one from
Tapping head, it is characterised in that：Auxiliary clamping fixed mechanism is provided with above tapping screw thread head in connecting rod；Described
Auxiliary clamping fixed mechanism be one centered on connecting rod protruding four bars cross structure, in 4 bars of cross structure
Outer end be respectively provided with a screwed hole, in addition to the threaded lock screw that screwed hole coordinates, lock screw is passed through into screw thread
Hole be screwed into femoral head realize to femoral head hold prevent it from rotating.
2. a kind of medical extraction apparatus for head of femur according to claim 1, it is characterised in that：Described auxiliary is gripped
Mechanism is in integrative-structure with connecting rod.
3. a kind of medical extraction apparatus for head of femur according to claim 1, it is characterised in that：Described auxiliary is gripped
Mechanism is a flat cross structure, and its center is provided with the mounting hole coordinated with connecting rod, auxiliary clamping fixed mechanism suit
Fixation is detachably connected with connecting rod in connecting rod.
4. a kind of medical extraction apparatus for head of femur according to claim 1, it is characterised in that：Described auxiliary is gripped
The upper and lower end face of 4 bars of mechanism is flat.
5. a kind of medical extraction apparatus for head of femur according to claim 3, it is characterised in that：In described connecting rod certainly
At least 2 tapped through holes being arranged above and below are provided with above tapping head, and are opened in the symmetrical both sides of auxiliary clamping fixed mechanism
There are 2 symmetrical tapped through holes, by the spiral shell for penetrating auxiliary clamping fixed mechanism upper tapped through hole and connecting rod upper tapped through hole
Auxiliary clamping fixed mechanism is fixed in connecting rod by nail.
6. a kind of medical extraction apparatus for head of femur according to claim 3, it is characterised in that：In described connecting rod certainly
The top both sides of tapping head are respectively provided with least 2 tapped blind holes being arranged above and below, and fixed mechanism symmetrical two is clamped in auxiliary
Side is provided with 2 symmetrical tapped through holes, and auxiliary clamping fixed mechanism is by being threaded into through hole and connecting rod in tapped blind hole
Screw by aid in clamping fixed mechanism be fixed in connecting rod.
7. a kind of medical extraction apparatus for head of femur according to claim 1 or 3, it is characterised in that：Described auxiliary clamping
Fixed mechanism is a flat cross structure, and its center, which is provided with the mounting hole coordinated with connecting rod, mounting hole, one vertical
The installing pipe that upward internal diameter coordinates with connecting rod, is provided with symmetrical two screwed holes, described on the tube wall of installing pipe
At least 2 tapped through holes being arranged above and below are provided with connecting rod above tapping screw thread head, auxiliary clamping fixed mechanism is sleeved on
In connecting rod, by the screw for penetrating installing pipe upper screwed hole and connecting rod upper tapped through hole clamping fixed mechanism will be aided in fix
In connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844657.6A CN104546034B (en) | 2014-12-30 | 2014-12-30 | A kind of medical extraction apparatus for head of femur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844657.6A CN104546034B (en) | 2014-12-30 | 2014-12-30 | A kind of medical extraction apparatus for head of femur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104546034A CN104546034A (en) | 2015-04-29 |
| CN104546034B true CN104546034B (en) | 2017-07-25 |
Family
ID=53063864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410844657.6A Expired - Fee Related CN104546034B (en) | 2014-12-30 | 2014-12-30 | A kind of medical extraction apparatus for head of femur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104546034B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107260272A (en) * | 2017-06-26 | 2017-10-20 | 苏州奥特科然医疗科技有限公司 | A kind of medical bone withdrawing device |
| CN109938815B (en) * | 2019-04-09 | 2023-10-27 | 北京爱康宜诚医疗器材有限公司 | Femoral head extraction device |
| CN113081160B (en) * | 2021-04-14 | 2022-06-17 | 欧阳晓 | Orthopedic drilling guiding and aiming device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256709Y (en) * | 1994-06-10 | 1997-06-25 | 陈晓明 | Screw extraction apparatus for head of femur |
| DE29710979U1 (en) * | 1997-06-24 | 1997-08-21 | Aesculap Ag & Co Kg | Implant for fixing bone parts and tool for this implant |
| CN200970259Y (en) * | 2006-10-31 | 2007-11-07 | 陈保甲 | Medical femur take out device |
| CN201299640Y (en) * | 2008-12-14 | 2009-09-02 | 管锡普 | A novel bone nail extractor |
| US20110106186A1 (en) * | 2009-11-02 | 2011-05-05 | Nikolaj Wolfson | Bone fragment extraction |
| CN201889758U (en) * | 2010-12-07 | 2011-07-06 | 河南永昌飞天淀粉糖有限公司 | Exhaust fan impeller remover |
| CN204379326U (en) * | 2014-12-30 | 2015-06-10 | 欧阳晓 | A kind of medical femoral head withdrawing device |
-
2014
- 2014-12-30 CN CN201410844657.6A patent/CN104546034B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104546034A (en) | 2015-04-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170725 |