CN204863457U - Coupling is bionical to be subtracted to glue to fall and decreases high frequency electric sword tool bit - Google Patents

Abstract

The utility model discloses a coupling is bionical to be subtracted to glue to fall and decreases high frequency electric sword tool bit, including the radio frequency controller, the handle of a knife, insulating cover, screw and knife tip, the flat mouth of radio frequency controller prevents that the handle of a knife from rotating, the rectangular mouth at knife tip middle part reduces the adhesion, the knife tip top is including cambered surface and the central cambered surface of deflecting, the partial discharge effect at the cambered surface of deflecting and central cambered surface reinforcing knife tip top, with the effect that realizes reducing the adhesion, the value range of deflection contained angle is 15 - 20, the radial outside of the cambered surface of deflecting is equipped with the bionical ball impression of deflecting, the deflection angular interval of the bionical ball impression of deflecting is 18, the radial value range of the bionical ball impression of deflecting is the 0.05 -0.1 millimeter, reduce the damage phenomenon through adjusting the bionical ball impression radius that deflects with the angular interval that deflects, the radial outside of center cambered surface is equipped with central bionical ball impression, the central angular interval value range of the bionical ball impression in center is 12 - 18, center bionical ball impression radial value range is the 0.05 -0.15 millimeter, radius and central angular interval through adjusting central bionical ball impression reduce the damage phenomenon.

Description

The bionical reducing adhesion of a kind of coupling damages high frequency electric knife cutter head

Technical field

This utility model relates to a kind of high frequency electric knife cutter head for micro-wound surgical operation, and particularly the one bionical reducing adhesion that is coupled damages high frequency electric knife cutter head.

Background technology

Along with the progress of Design for Medical Device and manufacturing technology, micro-wound surgical operation achieves important achievement in minimizing operation in patient trauma, achieves the leap operating aperture operation technique from Tradtional laparotomy.In micro-wound surgical operation, high frequency electric knife is that main carrying can one of work apparatus, for the cutting organized and hemostasis.But within this year, energy apparatus is while hemostasis and cutting, also can cause the serious adhesion being organized in equipment surfaces.The adhesion of electric knife and tissue often increases the separating difficulty of cutter head and tissue in operation process, very easily causes the injuries such as the secondary of tissue is torn, secondary is hemorrhage.Therefore, solve the Interface Adhesion problem of electric knife-tissue, exploitation has high frequency electric knife that is antiseized, anti-adhesive functionality feature and has important clinical meaning.

At present, stick for electric knife-tissue, the method taked mainly contains: 1) bit interface plating.By reducing surface energy and the localized hyperthermia of electric knife in the coating of the materials such as bit interface plating teflon, silicone, pottery, and then reduce the Interface Adhesion of electric knife-tissue.The method can reduce the adhesion of cauterise tissue to a certain extent, but coating safety is at high operating temperatures still not clear at present, therefore clinical practice is less.2) bit interface changes shape.Process certain microscopic pattern at the flat smooth surface of cutter head, the groove etc. of screw thread as micro-in spider reticulation, imitative plant leaf blade, improves the heat effect of bit interface, to reduce tissue adherence.3) add water injector, reduced the interface temperature of cutter head-tissue by cutter head water spray, and then reduce tissue adherence.Therefore, mostly current solution is the single modification carried out bit interface from surface hydrophobicity characteristic, microcosmic heat effect angle or changes shape, distribute with the interface temperature improving cutter head and tissue and adhere to, but all not based on electric knife-tissue adhesion characteristics and carry out, therefore visbreaking effect is undesirable, and practicality is poor.

Take a broad view of above-mentioned high frequency electric knife present situation, need the adhesion rule that a kind of degree of depth considers electric knife-tissue badly, and the high frequency electric knife cutter head low to Minimally Invasive Surgery tissue adherence, tissue injury is few.

Summary of the invention

The purpose of this utility model is to provide a kind of coupling bionical reducing adhesion damage high frequency electric knife cutter head that can overcome above-mentioned defect, solve the tissue adherence problem of existing micro-wound surgical operation apparatus-high frequency electric knife.

This utility model includes rf control unit, handle of a knife, insulation sleeve, screw and point of a knife, handle of a knife includes bottom handle of a knife and handle of a knife top, point of a knife includes bottom point of a knife and point of a knife top, rf control unit is inserted bottom handle of a knife, insulation sleeve is arranged on handle of a knife by handle of a knife top, and handle of a knife top is arranged on bottom point of a knife by screw, flat mouth and round mouth are offered in the middle part of rf control unit, and flat mouth prevents handle of a knife from rotating, rectangular opening is offered at the middle part of point of a knife, and rectangular opening reduces adhesion, point of a knife top includes deflection cambered surface and center cambered surface, deflection cambered surface is symmetrically distributed in the both sides of center cambered surface, deflection cambered surface and center cambered surface strengthen the shelf depreciation effect at point of a knife top, to realize the effect reducing to adhere to, the span of the deflection angle of deflection cambered surface is 15 °-20 °, the radially outer of deflection cambered surface is provided with the bionical ball impression of deflection, the deflection angular interval deflecting bionical ball impression is 18 °, the span deflecting bionical ball impression radius is 0.05-0.1 millimeter, the proportion deflecting bionical ball impression radius and deflection radius is 0.05-0.1, damage phenomenon is reduced by regulating the bionical ball impression radius of deflection and deflection angular interval, the radially outer of center cambered surface is provided with the bionical ball impression in center, the Center Gap angle span of the bionical ball impression in center is 12 °-18 °, the span of the bionical ball impression radius in center is 0.05-0.15 millimeter, the proportion of the bionical ball impression radius in center and center radius is 0.04-0.14, damage phenomenon is reduced by regulating the bionical ball impression radius in center and Center Gap angle.

Described handle of a knife and point of a knife all adopt stainless steel material.

Described insulation sleeve adopts insulation high-temperature-resistant polythene material.

Operation principle of the present utility model and process are:

Start rf control unit and high frequency electric is passed to point of a knife by handle of a knife; electrical insulation protection is carried out by insulation sleeve; utilize the flat mouth restriction handle of a knife on rf control unit to rotate, by screw, handle of a knife and point of a knife are linked together, carry out the operation of surgery Minimally Invasive Surgery by point of a knife.Offer rectangular opening in the middle part of point of a knife, reduce easily sticky tissue and the contact area of point of a knife of 70-80 DEG C, reduce tissue adherence; Deflect cambered surface and center cambered surface formation combination type sphere simultaneously, strengthen the shelf depreciation effect of point of a knife, utilize high temperature heat to reduce tissue adherence; Regulated the heat distribution on point of a knife by the radius of the bionical ball impression form of the bionical ball impression of deflection and center on change point of a knife and the distribution characteristics in cambered surface thereof, reduce the damage of point of a knife to tissue.

The beneficial effects of the utility model:

1, point of a knife arcuate structure and the bionical ball impression form of two classes form point of a knife coupling body jointly, are conducive to making point of a knife realize reducing to adhere to and reduce damage two kinds of effects to organizing simultaneously.

2, handle of a knife and point of a knife with bolts, be conducive to changing the bionical reducing adhesion of different couplings according to different surgical objects and different operative sites and damage electric knife point of a knife.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment.

Fig. 2 is the structural representation removing rf control unit of this utility model embodiment.

Fig. 3 is the structural representation of the point of a knife of this utility model embodiment.

Fig. 4 is that the A at the point of a knife top of this utility model embodiment is to structural representation.

Fig. 5 is that C-C in Fig. 4 is to sectional view.

Fig. 6 is that the B of the rf control unit of this utility model embodiment is to structural representation.

Wherein: 1-rf control unit; 2-handle of a knife; 3-insulation sleeve; 4-screw; 5-point of a knife; Bottom 6-handle of a knife; 7-handle of a knife top; Bottom 8-point of a knife; 9-rectangular opening; 10-point of a knife top; 11-deflection cambered surface; 12-center cambered surface; 13-deflect bionical ball impression; The bionical ball impression in 14-center; 15-deflection angular interval; 16-Center Gap angle; 17-deflection angle; 18-deflect bionical ball impression radius; 19-center radius; The bionical ball impression radius in 20-center; 21-deflection radius; 22-flat mouth; 23-round mouth.

Detailed description of the invention

Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, this utility model includes rf control unit 1, handle of a knife 2, insulation sleeve 3, screw 4 and point of a knife 5, handle of a knife 2 to include bottom handle of a knife 6 and handle of a knife top 7, point of a knife 5 to include bottom point of a knife 8 and point of a knife top 10, bottom handle of a knife, 6 insert rf control unit 1, insulation sleeve 3 is arranged on handle of a knife 2 by handle of a knife top 7, and handle of a knife top 7 to be arranged on bottom point of a knife on 8 by screw 4, flat mouth 22 and round mouth 23 are offered in the middle part of rf control unit 1, and flat mouth 22 prevents handle of a knife 2 from rotating, rectangular opening 9 is offered at the middle part of point of a knife 5, and rectangular opening 9 reduces adhesion, point of a knife top 10 includes deflection cambered surface 11 and center cambered surface 12, deflection cambered surface 11 is symmetrically distributed in the both sides of center cambered surface 12, deflection cambered surface 11 and center cambered surface 12 strengthen the shelf depreciation effect at point of a knife top 10, to realize the effect reducing to adhere to, the span of the deflection angle 17 of deflection cambered surface 11 is 15 °-20 °, the radially outer of deflection cambered surface 11 is provided with the bionical ball impression 13 of deflection, the deflection angular interval 15 deflecting bionical ball impression 13 is 18 °, the span deflecting bionical ball impression radius 18 is 0.05-0.1 millimeter, deflecting bionical ball impression radius 18 is 0.05-0.1 with the proportion of deflection radius 21, damage phenomenon is reduced by regulating the bionical ball impression radius 18 of deflection and deflection angular interval 15, the radially outer of center cambered surface 12 is provided with the bionical ball impression 14 in center, Center Gap angle 16 span of the bionical ball impression 14 in center is 12 °-18 °, the span of the bionical ball impression radius 20 in center is 0.05-0.15 millimeter, the bionical ball impression radius 20 in center is 0.04-0.14 with the proportion of center radius 19, damage phenomenon is reduced by the bionical ball impression radius 20 in adjustment center and Center Gap angle 16.

Described handle of a knife 2 and point of a knife 5 all adopt stainless steel material.

Described insulation sleeve 3 adopts insulation high-temperature-resistant polythene material.

Claims (3)

1. the bionical reducing adhesion of coupling damages high frequency electric knife cutter head, it is characterized in that: include rf control unit (1), handle of a knife (2), insulation sleeve (3), screw (4) and point of a knife (5), handle of a knife (2) includes (6) and handle of a knife top (7) bottom handle of a knife, point of a knife (5) includes (8) and point of a knife top (10) bottom point of a knife, bottom handle of a knife, (6) insert rf control unit (1), insulation sleeve (3) is arranged on handle of a knife (2) by handle of a knife top (7), handle of a knife top (7) to be arranged on bottom point of a knife on (8) by screw (4), flat mouth (22) and round mouth (23) are offered in the middle part of rf control unit (1), and flat mouth (22) prevents handle of a knife (2) from rotating, rectangular opening (9) is offered at the middle part of point of a knife (5), and rectangular opening (9) reduces adhesion, point of a knife top (10) includes deflection cambered surface (11) and center cambered surface (12), deflection cambered surface (11) is symmetrically distributed in the both sides of center cambered surface (12), deflection cambered surface (11) and center cambered surface (12) strengthen the shelf depreciation effect at point of a knife top (10), to realize the effect reducing to adhere to, the span of the deflection angle (17) of deflection cambered surface (11) is 15 °-20 °, the radially outer of deflection cambered surface (11) is provided with the bionical ball impression of deflection (13), the deflection angular interval (15) deflecting bionical ball impression (13) is 18 °, the span deflecting bionical ball impression radius (18) is 0.05-0.1 millimeter, deflecting bionical ball impression radius (18) with the proportion of deflection radius (21) is 0.05-0.1, damage phenomenon is reduced by regulating the bionical ball impression radius (18) of deflection and deflection angular interval (15), the radially outer of center cambered surface (12) is provided with the bionical ball impression in center (14), Center Gap angle (16) span at the bionical ball impression in center (14) is 12 °-18 °, the span of the bionical ball impression radius (20) in center is 0.05-0.15 millimeter, the bionical ball impression radius (20) in center is 0.04-0.14 with the proportion of center radius (19), damage phenomenon is reduced by regulating the bionical ball impression radius (20) in center and Center Gap angle (16).

2. the bionical reducing adhesion of one coupling according to claim 1 damages high frequency electric knife cutter head, it is characterized in that: described handle of a knife (2) and point of a knife (5) all adopt stainless steel material.

3. the bionical reducing adhesion of one coupling according to claim 1 damages high frequency electric knife cutter head, it is characterized in that: described insulation sleeve (3) adopts insulation high-temperature-resistant polythene material.