CN107411801A - A kind of gripper extraction apparatus for head of femur - Google Patents
A kind of gripper extraction apparatus for head of femur Download PDFInfo
- Publication number
- CN107411801A CN107411801A CN201710819545.9A CN201710819545A CN107411801A CN 107411801 A CN107411801 A CN 107411801A CN 201710819545 A CN201710819545 A CN 201710819545A CN 107411801 A CN107411801 A CN 107411801A
- Authority
- CN
- China
- Prior art keywords
- head
- femur
- femoral head
- handle
- gripper
- 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
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
-
- 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
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Ophthalmology & Optometry (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of gripper extraction apparatus for head of femur, it is made up of T-handle and claw-shaped device, both are connected through a screw thread, claw-shaped device is to be distributed in around threaded sleeve, for resected femur head in art, femoral head is avoided to rotate, then rotation T-handle, is progressively screwed into femoral head, femoral head is smoothly lifted out after fixation, the present invention realizes extractor and is accurately screwed into femoral head, avoid offseting, extractor is fixed with femoral head more firm, take-off speed is faster, and it is simple to operate, it can preferably be applied to the operation of this area.
Description
Technical field
The present invention relates to joint surgery field, particularly hip joint surgery.More particularly it is used in femoral neck bone reefing
The taking-up of femoral head.
Background technology
Hip replacement be it is a kind of alleviate arthralgia, recover function of joint, orthotic joint deformity it is reliable, repeatable
Operation, the gerontal patient especially suitable for fracture of neck of femur.
The mode for the treatment of fracture of neck of femur includes following several at present：Expectant treatment, closure or internal fixation,
Hip replacement, various therapeutic modalities cut both ways.Expectant treatment be only applicable to it is some serious medical complication be present can not
The patient of operation, hypostatic pneumonia, bedsore, urinary infection and thrombus shape caused by patient's Duo Yin long-term beds of expectant treatment
Into and it is dead, for the fracture of neck of femur without displacement, 20%~60% is up to using its secondary displacement rate after expectant treatment,
And the patient of the fracture of neck of femur shifted, expectant treatment is used, even if spending the threat of internal medicine complication caused by long-term bed
Afterwards, a pain can be also left, does not have functional hip joint, therefore most of fracture of neck of femur is required for operative treatment.
Its union rate is about 95% after using internal fixation treatment without displacement patients with fracture of neck, and postoperative complication incidence is
10%-15%, therefore most doctors suggest the patients with fracture of neck first choice internal fixation treatment without displacement.
For the fracture of neck of femur of displacement, age>60 years old, it is suggest selection joint replacement surgery more.Put carrying out joint
During hand-off art, femoral head is taken out usually using T-shaped spiral dirll, but be screwed into or squeeze into cancellous bone of femoral head in drill bit
When, the rotation of femoral head often occurs, causes position to offset, fixes loosely, drill bit then occurs when taking out femoral head cuts
The muscular soft tissues around the phenomenon of femoral head, or even damage are cut, the wound and operating time that it is unnecessary that increase is performed the operation, or even shadow
Ring patient's mood.
The content of the invention
In order to quick and smoothly take out femoral head, operation wound is reduced, therefore we devise a kind of gripper femoral head
Extractor.
The present invention is achieved by the following technical solutions：
1st, a kind of gripper extraction apparatus for head of femur, is made up of T-handle and claw-shaped device, and the T-handle is by handle and threaded bore
Structure is integrally formed, the claw-shaped device is integrally formed structure by three blade tooths and threaded sleeve, and the T-handle passes through the spiral shell
The threaded sleeve on threaded post and the claw-shaped device that line bores is into threaded connection.
2nd, the threaded bore is made up of thread head and threaded post, and the pitch of thread in the threaded post is on the thread head
Twice of the pitch of thread.
3rd, three blade tooths, angulation is 120 degree between adjacent blade tooth.
Brief description of the drawings
Fig. 1 gripper extraction apparatus for head of femur side views.
In figure：1. handle；2. threaded bore；3. thread head；4. threaded post；5. blade tooth；6. threaded sleeve.
Embodiment
The operation that femoral head takes out in present invention adaptation patients with fracture of neck row hip replacement.Hip replacement is with pendulum
Saw blocks fracture of neck of femur and far rolls over end, starts to take out femoral head, exposes acetabular bone with serpentine drag hook first, appear femoral head neck and break
End, inserted with three blade tooths 5 in the cancellous bone of the femoral head neck broken ends of fractured bone, rotational handle 1, pass through the threaded post 4 and spiral shell in threaded bore 2
The threaded connection of line sleeve pipe 6, progressively thread head 3 is screwed into femoral head neck broken ends of fractured bone cancellous bone, while applies inward pressure, with
Constantly being screwed into for thread head 3, drives the rotation of femoral head neck, until twisting into two parts a recessed ligament, then upper handle 1, takes out stock
Otch is closed in the bone neck broken ends of fractured bone, the then implantation of row acetabular cup and femoral stem, final suture.
Claims (3)
1. a kind of gripper extraction apparatus for head of femur, it is characterized in that：It is made up of T-handle and claw-shaped device, the T-handle is by handle
(1) and threaded bore (2) is integrally formed structure, and the claw-shaped device is integrally formed structure by three blade tooths (5) and threaded sleeve (6),
The T-handle is connected by the threaded sleeve (6) in the threaded post (4) in the threaded bore (2) and the claw-shaped device into screw thread
Connect.
2. a kind of gripper extraction apparatus for head of femur according to claim 1, it is characterized in that：The threaded bore (2) is by screw thread
Head (3) and threaded post (4) are formed, and the pitch of thread on the threaded post (4) is twice of the pitch of thread on the thread head (3).
3. a kind of gripper extraction apparatus for head of femur according to claim 1, it is characterized in that：Three blade tooths (5), it is adjacent
Angulation is 120 degree between blade tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710819545.9A CN107411801A (en) | 2017-09-12 | 2017-09-12 | A kind of gripper extraction apparatus for head of femur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710819545.9A CN107411801A (en) | 2017-09-12 | 2017-09-12 | A kind of gripper extraction apparatus for head of femur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107411801A true CN107411801A (en) | 2017-12-01 |
Family
ID=60433070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710819545.9A Pending CN107411801A (en) | 2017-09-12 | 2017-09-12 | A kind of gripper extraction apparatus for head of femur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107411801A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938815A (en) * | 2019-04-09 | 2019-06-28 | 北京大学第三医院 | Femoral head extraction device |
| CN110226971A (en) * | 2019-07-04 | 2019-09-13 | 苏州中科生物医用材料有限公司 | A kind of operation tool packet for caput femoris necrosis bone grafting |
-
2017
- 2017-09-12 CN CN201710819545.9A patent/CN107411801A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109938815A (en) * | 2019-04-09 | 2019-06-28 | 北京大学第三医院 | Femoral head extraction 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 |
| CN110226971A (en) * | 2019-07-04 | 2019-09-13 | 苏州中科生物医用材料有限公司 | A kind of operation tool packet for caput femoris necrosis bone grafting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |
|
| WD01 | Invention patent application deemed withdrawn after publication |