CN202526261U

CN202526261U - Strip-shaped skin incising scalpel for percutaneous puncture

Info

Publication number: CN202526261U
Application number: CN2012201305681U
Authority: CN
Inventors: 张晶
Original assignee: Chinese PLA General Hospital
Current assignee: Chinese PLA General Hospital
Priority date: 2012-03-31
Filing date: 2012-03-31
Publication date: 2012-11-14
Anticipated expiration: 2022-03-31

Abstract

A strip-shaped skin incising scalpel for percutaneous puncture comprises a hilt and a blade. The blade is connected with the hilt and is provided with a first side edge and a second side edge parallel to the first side edge, the length of the second side edge is equal to that of the first side edge; a first bevel edge which is inclined towards the second side edge is arranged at an end of the first side edge; a second bevel edge which is inclined towards the first side edge is arranged at an end of the second side edge, and the length of the second bevel edge is equal to that of the first bevel edge; the first bevel edge is provided with a first cutting edge; the second bevel edge is provided with a second cutting edge; and the first cutting edge and the second cutting edge are joined on a center line between the first side edge and the second side edge. The blade incises in a lesion site from a vertical direction, and the first cutting edge and the second cutting edge simultaneously incise off the skin of a patient; because the first bevel edge and the second bevel edge of the blade are in parallel, the length of the first cutting edge is equal to that of the second cutting edge, and the first cutting edge and the second cutting edge are joined on the center line between the first side edge and the second side edge, a skin incision cannot be expanded even if the incising scalpel incises in the skin deeply, surgery wound is small, and the strip-shaped skin incising scalpel is beneficial to incision recovery, accords with the concept of minimally invasive surgery, and is suitable to be used by a doctor during ultrasonic guidance minimally diagnosis and therapy.

Description

A kind of percutaneous puncture is used the bar shaped dermatotome

Technical field

This utility model relates to a kind of auxiliary facilities of microwave ablation treatment, relates in particular to a kind of percutaneous puncture and uses the bar shaped dermatotome.

Background technology

Along with the medical science shadow to technical development, in recent years Minimally Invasive Surgical Technology progress significantly, wherein, the ablation therapy of the microwave intervention treatment under the ultrasonic guidance is an impressive progress of minimally invasive surgery.The ablation therapy of microwave intervention treatment is with a Gent system microwave melt needle; Through skin ablation needle is presented to the tumor center zone; Contain " the miniature microwave oven " of 1 millimeter size on a bit in certain of microwave needle; The microwave magnetic field that is discharged by it makes molecule high speed rotary motion and temperature arrising caused by friction on every side, thereby makes tissue coagulation, dehydration necrosis, reaches the purpose of treatment.

Because the ablation needle end is not very sharp; Directly inserting focus through skin is prone to cause operative failure and increases patient's pain; So before ablation needle inserts skin, on skin, cut an edge of a knife with common sharp scalpel earlier; Ablation needle inserts focus through the edge of a knife, alleviates the pain of corrective surgery.Scalpel such as Fig. 1 and Fig. 2 comprise handle of a knife 11 and blade 12, and handle of a knife 11 and blade were opened and deposited and sterilize in 12 minutes.When blade 12 was installed, with needle forceps 13 clamping blades 12 front end backs, it was stupefied 14 to make the breach 15 of blade 12 aim at handle of a knifes 11 forward cuttves, and firmly pulled backwards blade 12 clamping cuttves are stupefied 14, and blade is accomplished installation.

Though above-mentioned common scalpel can use in the microwave ablation operation,, the gradient of the blade of scalpel commonly used is bigger, and scalpel incision skin is dark more, and the skin edge of a knife is big relatively more, and it is slower that the edge of a knife recovers, and therefore is not easy in the microwave ablation operation, use.

The utility model content

Utility model provides a kind of percutaneous puncture to use the bar shaped dermatotome, and when cutter goed deep into skin, the edge of a knife was less relatively, helps the edge of a knife and recovers, and meets the theory of Minimally Invasive Surgery, is fit to the doctor and in the microwave ablation operation, uses.

For realizing above-mentioned technique effect; This utility model provides a kind of percutaneous puncture to use the bar shaped dermatotome, and a kind of percutaneous puncture is used the bar shaped dermatotome, comprising: handle of a knife and the blade that is connected handle of a knife; Said blade has first side and the second side isometric and parallel with the first side; The end, first side has first hypotenuse to the second side inclination, and the end, second side has to the first side to tilt and second hypotenuse isometric with second hypotenuse, and first hypotenuse has first blade; Second hypotenuse has second blade, and first blade and second blade meet on the centrage between first side and the second side.

Preferably, said handle of a knife is shaped as cylinder.

Preferably, said first side has the 3rd blade, and the second side has the four blade sword.

Preferably, said handle of a knife is shaped as a kind of in cylinder, the prism.

Preferably, said blade extends to the handle of a knife outside by said cylinder handle of a knife end.

The percutaneous puncture that this utility model provides is used the bar shaped dermatotome; Cylinder handle of a knife and blade; Said blade has first side and the second side isometric and parallel with the first side; The end, first side has first blade to the second side inclination, and the end, second side has second blade isometric and that tilt to the first side with first blade, and first blade and second blade meet on the centrage between first side and the second side.The blade of cutter is cut focus from vertical direction, and first blade and second blade cut skin simultaneously, because first hypotenuse of blade is parallel with second hypotenuse; And first blade and second blade are isometric and meet on the centrage between first side and the second side, even therefore cutter incision skin is darker, the skin edge of a knife can not enlarge yet; Operation wound is less; Help the edge of a knife and recover, meet the theory of Minimally Invasive Surgery, be fit to the doctor and in the microwave ablation operation, use.

Description of drawings

Fig. 1 is the structural representation of existing scalpel;

Fig. 2 is the scheme of installation of the blade of existing scalpel;

Fig. 3 is the front view of this utility model percutaneous puncture with the bar shaped dermatotome.

The specific embodiment

Fig. 3 illustrates front view and the side view of this utility model percutaneous puncture with the bar shaped dermatotome; With reference to figure 3; The said percutaneous puncture of this utility model comprises with the bar shaped dermatotome: handle of a knife 31 and blade 32; Blade 32 connects the end of handle of a knife 31, and handle of a knife 31 has first side 311 and the second side 322 relative with the first side, and first side 311 is isometric and parallel with second side 312; 311 ends, first side have first blade 313 to the inclination of second side, 312 limits; It is isometric and meet on the centrage between first side 311 and the second side 312 that the end of second side 312 has second blade, 314, the first blades 313 that tilt to first side 311 and second blade 314, thereby guarantee that first blade 313 equates with second blade, 314 gradients.In the microwave ablation operation, when utilizing cutter to cut skin, has the direction incision skin of the two-sided blade that puts the first edge on a knife or a pair of scissors from vertical skin; Along with cutter deepen continuously, first blade and second blade are scratched the skin of cutter both sides simultaneously, and the patient does not have the pain that skin is torn; And the cutter first side is parallel with the second side, and the skin edge of a knife can not enlarge along with deepening continuously of cutter; Skin wound is less, is convenient to patient's wound healing.

In this utility model additional embodiments, first side 311 has the 3rd blade and second side 312 has the four blade sword, is convenient to cutter and inserts the focus depths.

In other embodiment of this utility model; Percutaneous puncture is with the cylindricality that is shaped as of the handle of a knife of bar shaped dermatotome; For example a kind of in the multiple prisms such as cylinder, triangular prism or quadrangular need to prove that those skilled in the art should infer other shapes under skimble-skamble situation; Therefore, every doctor of being convenient to holds the handle of a knife shape in the protection domain of this utility model.

In this utility model additional embodiments, percutaneous puncture uses the handle of a knife of bar shaped dermatotome and blade to design as integral type, and promptly blade is extended to by said handle of a knife end that handle of a knife is outside to be formed.Need not assembled on site handle of a knife and blade before the microwave ablation operation, be convenient in the microwave ablation operation, use.

Obviously, under the prerequisite of this utility model spirit that does not break away from claims and defined and utility model scope, can have and variously augment, revise and replace.It should be appreciated by those skilled in the art that this utility model can change aspect form, structure, layout, ratio, material, element, assembly and other according to concrete environment and job requirement to some extent under the prerequisite that does not deviate from the utility model criterion in practical application.Therefore, embodiment disclosed here only is illustrative rather than definitive thereof, and the scope of this utility model is defined by accompanying claims and legal equivalents thereof, and the description before being not limited thereto.

Claims

1. a percutaneous puncture is used the bar shaped dermatotome; It is characterized in that; Comprise: handle of a knife and the blade that is connected handle of a knife, said blade have first side and the second side isometric and parallel with the first side, and the end, first side has first hypotenuse to the second side inclination; The end, second side has to the first side to tilt and second hypotenuse isometric with second hypotenuse; First hypotenuse has first blade, and second hypotenuse has second blade, and first blade and second blade meet on the centrage between first side and the second side.

2. percutaneous puncture according to claim 1 is used the bar shaped dermatotome, it is characterized in that, said handle of a knife be shaped as cylinder.

3. percutaneous puncture according to claim 1 is used the bar shaped dermatotome, it is characterized in that, said first side has the 3rd blade, and the second side has the four blade sword.

4. percutaneous puncture according to claim 2 is used the bar shaped dermatotome, it is characterized in that, said handle of a knife be shaped as a kind of in cylinder, the prism.

5. use the bar shaped dermatotome according to claim 3 or 4 described percutaneous punctures, it is characterized in that, said blade extends to the handle of a knife outside by said cylinder handle of a knife end.