CN202313670U

CN202313670U - Femoral head necrosis internal sclerotin cutter

Info

Publication number: CN202313670U
Application number: CN2011203319557U
Authority: CN
Inventors: 周开文
Original assignee: Dezhou University
Current assignee: Dezhou University
Priority date: 2011-09-06
Filing date: 2011-09-06
Publication date: 2012-07-11
Anticipated expiration: 2021-09-06

Abstract

The utility model discloses medical equipment, in particular to a femoral head necrosis internal sclerotin cutter. The femoral head necrosis internal sclerotin cutter comprises a shell, handles, a gear, a sweat absorbing tape, a central moving shaft and a blade. The cutter is characterized in that: the sweat absorbing tape is arranged on the outer side of the three-dimensional anatomical acetabulum thick-wall fracture shell, and a dial gauge is arranged on the upper surface of the shell; a graduation ruler is arranged on the upper part of the central moving shaft; and the handles, the central moving shaft and the gear are arranged in an embedded mode. By adopting the technical scheme, the cutter has the advantages of reducing pressure of a necrosis region on the periphery of a femoral head in an operation and making the operation simple and accurate.

Description

Sclerotin cutter in the femur head necrosis

Technical field

The utility model discloses a kind of armarium, especially disclose sclerotin cutter in a kind of femur head necrosis.

Background technology

Femur head necrosis is claimed ischemic necrosis of femoral head again, is one of common osteoarthritis.Because of illness such as rheumatism, hematopathy, bends, burn cause, destroy the blood supply of adjacent joints covering weave earlier, and then cause necrosis mostly.Femur head necrosis for second phase, three phases is main with three oxygen target spot interventional therapys, mechanism treatment, arterial perfusion therapy, physiotherapy mainly at present at present; This modus operandi helps improving the femoral head blood supply; Stop or slow down collapse of the femoral head, ease the pain, thereby play therapeutical effect.Naturopathy at present commonly used clinically for the drill bit of diameter 10-12mm from holing under the greater trochanter to the ANFH district, bore except that necrotic bone.Because neck of femur has the load-bearing effect, so too slightly being prone to cause the femoral neck bone amount, reduces on the drill bit of decompression usefulness, cause fracture of femoral neck, drill bit too detailed rules and regulations can not effectively excise necrotic bone.For the patient of necrotic area at the femoral head periphery, because straight drill is directly crossed the main body of back, femur footpath necrotic bone not in the scope of duct, thick, jig drill head all can not thoroughly bore to remove and be positioned at the necrotic bone of this necrotic area, thereby can not effectively reduce pressure.

The utility model content

This utility model proposes sclerotin cutter in a kind of femur head necrosis, and the sclerotin cutter not only reduces pressure to femoral head periphery necrotic zone in this femur head necrosis, but also can make operation oversimplify precision.

This utility model solves the problems of the technologies described above the technical scheme that adopted like following description:

Sclerotin cutter in a kind of femur head necrosis; Comprise: housing, handle, gear, absorbing sweat cover band, center moving axis and blade; It is characterized in that: there is absorbing sweat cover band said housing outside; And graduation apparatus is arranged at the housing upper surface, and rule is arranged at moving axis top, center, and handle and center moving axis and gear are inserted installations.

This utility model to having solved very big problem in the present operation, wherein can be controlled the length of in housing, coming out of rotary-cut cutter according to the length of center moving axis high scale chi through the improvement on some details, thereby has controlled the working range of cutting blade; When regulating the cutting blade operating angle, also can be rotated handle according to the graduation apparatus on the housing upper surface, can practice thrift operating time like this, doctor's operation has easily been avoided intact disorganization; And the mounting means of handle is inserted, and easy installation and removal also solves the problem that causes because of the space in the operative treatment process.

This utility model the beneficial effect of having taked technique scheme such as below description:

This utility model is simple to operate, has made things convenient for doctor's operation process, when reaching the identical treatment effect, reduces operating time, has alleviated patient's misery, has really realized minimally-invasive treatment.

Description of drawings

Through the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and understand easily.

Fig. 1 is the structural representation of sclerotin cutter in this utility model femur head necrosis;

Among the figure, 1 handle a, 2 handle b, 3 gears, 4 absorbing sweats cover band, 5 center moving axis, 6 steady pins, 7 cutting blades, 8 arc-shaped protrusions, 10 housings, 11 rotary-cut pipes, 12 fixed axis.

Fig. 2 is the enlarged drawing of A in this utility model.

Among the figure, 3 gears, 5 center moving axis, 9 sawtooth.

Fig. 3 is the partial enlarged drawing on this utility model top.

Among the figure, 1 handle, 5 center moving axis, 10 housings.

Fig. 4 is the top view of this utility model.

Among the figure, 1 handle a, 2 handle b, 5 center moving axis, 10 housings.

The specific embodiment

Below in conjunction with accompanying drawing this utility model is carried out detailed description.

Fig. 1 is the structural representation of sclerotin cutter in this utility model femur head necrosis; Fig. 2 is the enlarged drawing of A among Fig. 1.

As shown in the figure, this device comprises, handle a1, and handle b2, gear 3, the absorbing sweat cover is with 4, center moving axis 5, steady pin 6, cutting blade 7, arc-shaped protrusions 8, housing 10.

The sclerotin cutter comprises that housing 10, absorbing sweat cover reach gear 3, center moving axis 5, steady pin 6 and the cutting blade of installing at housing 10 internal fixation 7 with 4 in this utility model femur head necrosis; Wherein center moving axis 5 has some sawtooth 9 with gear 3 contacts site; And through the mutual co-ordination of sawtooth on sawtooth 9 and the gear 3; The position that moving axis top, center is exposed at the housing outside is inlaid with handle a1; The moving axis bottom has fixedly mounted cutting blade 7 through steady pin 6 at the center, and lamellar arc-shaped protrusions 8 is arranged under cutting blade 7, and arc-shaped protrusions 8 is fixed on above the housing 10 through fixed axis 12; The position that gear 3 is exposed at housing 10 outsides is inlaid with handle b2.

In operation; When rotary-cut pipe 11 arrives the femur head necrosis district; The motion of the rotating band moving gear 3 through handle b2, sawtooth on the gear 3 and the sawtooth 9 above the center moving axis 5 motion that matches, center moving axis 5 moves downward; Moving axis 5 lower ends in center are combined with arc-shaped protrusions 8; Arc-shaped protrusions 8 was opened the formation duty in 7 minutes with cutting blade in the downward motor process of center moving axis, can hold the range size that cutting blade was opened in 7 minutes this moment according to the size in femur head necrosis zone and according to the rule of center moving axis upper end, through the rotation to the rotating band disorder of internal organs of handle a1 axle 5 aroused in interest; Be rotated according to the size in femur head necrosis zone graduation apparatus, can be rotated cutting to the femur head necrosis zone accurately like this according to housing 10 upper surfaces.

Claims

1. sclerotin cutter in the femur head necrosis; Comprise: housing, handle, gear, absorbing sweat cover band, center moving axis and blade; It is characterized in that: there is absorbing sweat cover band said housing outside; And graduation apparatus is arranged at the housing upper surface, and rule is arranged at moving axis top, center, and handle and center moving axis and gear are inserted installations.