CN213156241U

CN213156241U - Skin stripping osteotome

Info

Publication number: CN213156241U
Application number: CN202020686785.3U
Authority: CN
Inventors: 张永红; 王栋; 赵斌; 吕智
Original assignee: Second Hospital of Shanxi Medical University
Current assignee: Second Hospital of Shanxi Medical University
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-05-11
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to a dermatotome of peeling off, including the handle of a knife, the surface mounting of handle of a knife has the antiskid cover, and one side of handle of a knife is installed and is extended the handle of a knife, and the double-layered tool bit is installed to the handle of a knife opposite side, and double-layered tool bit front end centre gripping has the blade, presss from both sides the fixed blade of tool bit rear end, and the afterbody of blade is equipped with a fixed recess, presss from both sides the fixed blade end of head to and is equipped with a cell body, and the cell body bottom is equipped with a plunger, and the plunger bottom is equipped with a circular arch and passes the recess fixed blade that the cell body bottom stretched into the blade afterbody, the plunger top is equipped with expanding spring, and expanding spring upper portion compression is sealed fixed. The utility model discloses a bone knife is peeled off to cortex sees the wild deep condition of art that can understand, can change the blade, and handle of a knife length can prolong, and the cortex is peeled off conveniently.

Description

Skin stripping osteotome

Technical Field

The utility model relates to a surgical use tool technical field specifically is a dermatotome.

Background

Scalpels generally consist of a blade having a hard, sharpened, single-edged cutting blade at its distal end and a handle at its proximal end, typically made of stainless steel, for cutting and sectioning bone. The periosteum elevator is used for retracting, expanding operation incision and stripping and exposing visual field when in surgical approach, and the osteotome and the periosteum elevator are often used in combination in orthopedic operation.

The fracture is not healed beyond the expected time, which is called delayed fracture healing or fracture nonunion, and the main treatment means of fracture nonunion at present comprises operation treatment, biological agent local injection, physical treatment and the like. Among them, cortical bone peeling is the main operation in surgical treatment, so cortical peeling osteotome is a main treatment tool, and is used in combination with bone grafting and bone substitute materials, often can obtain better treatment effect.

However, the current osteotome can inevitably shelter from the art field to some extent, make the operative employee can't see the operation area of cutting edge clearly, the cutting edge radian is fixed, the fixed extension that can not of handle of a knife length leads to the easy wound of cutting edge and cortex surrounding soft tissue in the operation process to influence the clinical curative effect that cortex was peeled off, need solitary apparatus to peel off and show the art area when peeling off the cortex in addition, caused the inconvenience for the operation, consequently, unsatisfied current demand, to this we have designed a cortex and peeled off the osteotome.

Disclosure of Invention

An object of the utility model is to provide a skin matter peels off bone knife to solve the wild deep condition of art of seeing that can not be clear that proposes in the above-mentioned background art, and the blade is fixed, handle of a knife length can not prolong, injures cortex tissue around easily by mistake, peels off and shows the inconvenient scheduling problem in art district.

In order to achieve the above object, the design of the utility model provides the following technical scheme: the utility model provides a dermatotome of peeling off, includes the handle of a knife, and the surface mounting of handle of a knife has anti-skidding cover, and one side of handle of a knife is installed and is extended the handle of a knife, and the double-layered tool bit is installed to the handle of a knife opposite side, and double-layered tool bit front end centre gripping has the blade, presss from both sides the fixed blade of tool bit rear end, and the afterbody of blade is equipped with a fixed recess, presss from both sides to the fixed blade end of head and is equipped with a cell body, and the cell body bottom is equipped with a plunger, and the plunger bottom is equipped with a circular arch and passes the fixed blade of recess that the cell body bottom stretched into the blade afterbody, the plunger top is equipped with expanding spring, and expanding spring upper portion.

Preferably, the inner side of the cutter clamping head is completely attached to one side of the blade, and the cutter clamping head and the blade are fixed through the plunger.

Preferably, the outer surface of the knife handle is completely attached to the inner side of the anti-skidding sleeve, and the knife handle and the anti-skidding sleeve are fixed through the clamping groove.

Preferably, one side of the extension knife handle is completely attached to the inner side of the knife handle, and the extension knife handle is fixed with the knife handle through threads.

Compared with the prior art, the utility model discloses an advance shows in:

1. the utility model discloses a blade can be dismantled, and cutting edge width and radian can be selected according to the shape and the diameter size of bone and install during the use, and the piece that peels off that the cooperation was used also can be changed according to the thickness and the size cooperation of the cortex bone piece that the particular case of bone and required peeling off, not only can reach the requirement of operation, and the cortex that obtains moreover peels off the effect more stable, and is unanimous, and the effect of guaranteeing the operation is more certain.

2. The utility model relates to an in the stability of blade at work can be guaranteed to inside plunger to when needing to be changed the blade, as long as with the outside pull of blade, inside plunger upwards upsprings automatically, can accomplish the extraction action, make the device reach quick assembly disassembly's purpose, improve work efficiency.

3. The utility model relates to an install extension handle of a knife additional and can increase scalpel operating range. When the device is not needed, the device can be screwed off through the threads, and the device is simple to operate, convenient and fast.

4. The utility model relates to a slippage phenomenon can not take place when antiskid cover can guarantee that operating personnel takes the device to the emergence of accident has been avoided.

5. The utility model relates to a through the setting that the piece was peeled off to the front end, peel off the piece and lead out cortex and periosteum and soft tissue separation when the blade was operated, do not need other instruments of reuse, convenient operation.

Drawings

FIG. 1 is a schematic structural view of the whole design of the present invention;

FIG. 2 is a side view of the utility model in its entirety;

FIG. 3 is a partially cut-away view of the tool holder of the present invention;

in the figure: 1. a knife handle; 2. a release sheet; 3. clamping a cutter head; 4. a blade; 5. fixing the groove; 6. a trough body; 7. a plunger; 8. a circular protrusion; 9. a tension spring; 10. an anti-slip sleeve; 11. Extending the tool shank; 12. the screw cap is arranged at the rear.

Detailed Description

The technical solution in the design example of the present invention will be clearly and completely described below with reference to the drawings in the design example of the present invention. It is obvious that the described examples are only a part of the design of the invention.

Referring to fig. 1-3, the present invention provides an example: the utility model provides a dermatotome, includes handle of a knife 1, and the outer surface mounting of handle of a knife 1 has antiskid cover 10, and extension handle of a knife 11 is installed to one side of handle of a knife 1, and double-layered tool bit 3 is installed to 1 opposite side of handle of a knife, and the centre gripping of double-layered tool bit 3 front end has blade 4, and the fixed blade 4 in double-layered tool bit 3 rear end, the afterbody of blade 4 is equipped with a fixed recess 5, and the fixed blade end of double-layered tool bit 3 is equipped with a cell body 6, and cell body 6 bottom is equipped with a plunger 7, and plunger 7 bottom is equipped with a circular arch 8 and passes the fixed recess 5 fixed blades of cell body 6 bottom stretching into the 4 afterbody of blade, plunger 7 top is equipped with expanding spring 9, and expanding spring 9 upper portion compression is sealed fixed, and strip piece 2 is installed with blade 4 syntropy.

Further, the inboard of double-layered tool bit 3 is laminated with one side of blade 4 completely, double-layered tool bit 3 is fixed through circular arch 8 of plunger 8 bottom with blade 4, utilize the cooperation of double-layered tool bit 3 and blade 4, inside plunger 8 and expanding spring 9 can guarantee the stability of blade 4 in work, and when blade 4 is changed to needs, as long as with the outside pull of blade 4, inside plunger 8 is automatic upwards bounces, can accomplish the extraction action, stripping blade 2 is installed to the below of blade 4, stripping blade 2 can be peeled off the soft tissue around the cortex, thereby make the better operation of cutting edge prevent to hinder around the tissue, thereby make double-layered tool bit device reach quick assembly disassembly's purpose, the work efficiency who improves.

Further, the outer surface of the handle 1 is completely attached to the inner side of the anti-slip sleeve 10, the handle 1 is fixed to the anti-slip sleeve 10 through a clamping groove, and the anti-slip sleeve 10 can guarantee that an operator cannot slide when taking the device by means of cooperation of the handle 1 and the anti-slip sleeve 10, so that accidents are avoided.

When the extension knife handle 11 is not additionally arranged, the rear rotary cover 12 can also be arranged at the rear end of the knife handle 1, and a flexible and changeable combined mode is realized.

One side of extending handle of a knife 11 laminates completely with the inboard of handle of a knife 1, and it is fixed through screw thread 10 to extend handle of a knife 11 and handle of a knife 1, and the installing additional of extending handle of a knife 11 can increase scalpel working range, when not needing, through the screw thread screw down can, easy operation, convenient and fast.

The working principle is as follows: when the device is used, the internal connection condition of the device is checked, the anti-slip sleeve 10 is firstly sleeved on the outer surface of the knife handle 1, and the anti-slip sleeve 10 can ensure that the device cannot slip when an operator takes the device, so that accidents are avoided. The plunger 7 and the telescopic spring 9 are installed inside the cutter clamping head 3, the circular bulge 8 at the bottom of the plunger 7 can firmly fix the blade 4, when the blade 4 needs to be replaced, the blade 4 is pulled outwards, the plunger 8 in the blade can automatically bounce upwards, the extraction action can be completed, and the device can achieve the purpose of quick assembly and disassembly and improve the working efficiency. When needs extension osteotome, install extension handle of a knife 11 additional, can guarantee that the doctor can operate patient's victim position through extending handle of a knife 11, install rearmounted spiral cover 12 in the device rear end at last, the inboard of rearmounted spiral cover 12 is provided with and makes its can be firm fix in the device rear end, when not installing extension handle of a knife 11 additional, rearmounted spiral cover 12 also can install the rear end at handle of a knife 1, realizes the nimble changeable composite mode of device.

Claims

1. The utility model provides a dermatotome of peeling off, includes the handle of a knife, its characterized in that the surface mounting of handle of a knife has anti-skidding cover, and the extension handle of a knife is installed to one side of handle of a knife, and the double-layered tool bit is installed to the handle of a knife opposite side, and double-layered tool bit front end centre gripping has the blade, presss from both sides the fixed blade of tool bit rear end, and the afterbody of blade is equipped with a fixed recess, and the fixed blade in recess that presss from both sides the tool bit end is equipped with a cell body, and the cell body bottom is equipped with a plunger, and the plunger bottom is equipped with a circular arch and passes the cell body bottom and stretch into the blade afterbody, the plunger top is equipped with expanding spring, and expanding spring upper portion compression is sealed fixed.

2. The cortical osteotomy knife of claim 1, wherein the blade is substantially flush with the inside of the blade, the blade being secured to the blade by a plunger.

3. The cortical stripping osteotome defined in claim 1, wherein the outer surface of said handle is fully engaged with the inner side of said anti-slip sheath, said handle and said anti-slip sheath being secured by a slot.

4. The cortical distraction osteotome of claim 1, wherein one side of said extension handle is substantially flush with the interior of said handle, said extension handle being threadably secured to said handle.