CN209377720U - Deep tissue aspiration cutter - Google Patents

Abstract

The utility model discloses a kind of deep tissue aspiration cutters, are mainly made of stab knife, casing, hand-held portion, four part of current control unit.The stab knife is made of stab knife point, stab knife cutting part, stab knife interconnecting piece.The stab knife cutting part has upper and lower blade and depth of cut to limit ridge, facilitates the width of control deep layer notch.The stab knife can slide back and forth in casing, cut destination organization.The stab knife point can release current, complete hemostasis, burn process.

Description

Deep tissue aspiration cutter

Technical field

The utility model relates to a kind of surgical operation tissue cutters, and more particularly to a kind of surgical operation used in Minimally invasive deep tissues cutter.

Background technique

The disclosure relates generally to minimally invasive deep tissues cutter used in a kind of surgical operation.It can be cut by small Mouth enters deep tissues, and completes the cutting and coagulation process to deep tissues.

With the development of science and technology medical technology is maked rapid progress, the overall development direction of medical technology is minimally invasive, smart at present Really, low-risk etc..Current clinically common tissue dissection knife is mostly flat pattern, and one or both sides are blade, are generally used for Textura epidermoidea or exposed deep tissues are cut, at present in treatment clinical course, if it is desired to cutting deep tissues, generally first to be cut The textura epidermoideas such as skin or mucous membrane are opened, deep tissues is sufficiently exposed, then cut deep tissues, the blood vessel of damage will be tied only Blood, small blutpunkte need electric knife or electric coagulation hemostat to stop blooding.And currently used stab knife is puncturing incision underlying soft tissue When have many limitations: 1. are not easy to accurately define the width of deep layer notch, and 2. deep layer notch bleedings are not easy to stop blooding, and 3. are not easy Deep layer incision site is accurately positioned.So deep layer kerf width can be limited by being clinically badly in need of one kind at present, it is not easy bleeding, is stopped blooding It is convenient, the microtrauma puncture incision knife of accurate positioning.The utility model, which is just being to provide one kind, can satisfy above-mentioned requirements, be completed at the same time Deep tissues are cut and the minimally invasive deep tissue aspiration cutter of electric coagulation hemostasis.

Summary of the invention

The disclosure describes a kind of deep tissue aspiration cutter, including stab knife, casing, hand-held portion and electric current Control unit.The stab knife may include stab knife point, stab knife cutting part and stab knife interconnecting piece.The current control unit It may include controller host, attaching plug, control switch, electrode plate and conducting wire.

Various aspects may include one or more following characteristics.Described sleeve pipe axis is linear or arc.The pipe of casing Wall has 1 or multiple casing windows.The ellipsoidal cross section of casing, circle, trapezoidal or other geometries, or different Different geometries is presented in segment.Casing front end is slanting sharp shape.Casing inner face has one or more guide ridges.Set The end of pipe is connected with hand-held portion.The inner surface of casing is coated with inner insulating layer.

Various aspects may also include one or more following characteristics.The stab knife is placed in casing, can be with forwards, backwards two End sliding.Stab knife axis is linear or arc.There is longitudinal stab knife intermediate insulator among stab knife, to separate two The elongated metal body of side, stab knife side have one or more stab knives to be oriented to groove.Stab knife point is punctured among knife Insulator is divided into body and point right side body two parts on the left of point.Stab knife point is slanting sharp shape or flat Shape.The exposed metal tip in the front end tip You Zuo and two, right tip of stab knife point.Body prolongs backward on the left of point It stretches for body on the left of cutting part, body extends rearward to be body on the right side of cutting part on the right side of point.The top of the stab knife cutting part and Respectively there is a blade in lower section.The upper and lower of stab knife cutting part two sides has depth of cut to limit ridge.The depth of cut limits ridge There is groove by longitudinal blade between blade.Body continues to extend to body on the left of interconnecting piece backward on the left of cutting part, and cutting part is right Lateral body continues to extend to body on the right side of interconnecting piece backward.Stab knife interconnecting piece is connected with hand-held portion.Except left tip, right tip, Outside upper knife edge and lower blade, the most surfaces of stab knife are coated with external insulation layer.The making material of blade uses the material of high rigidity Remaining component part of material, stab knife is respectively adopted using metal material or nonmetallic materials production or each component part Different material production.

In addition, having linkage and structure in the hand-held portion, stab knife and casing can be driven to be moved.Control Device host processed is connected by conducting wire with hand-held portion, is conveyed electrical current on stab knife.Controller host is connected with attaching plug, To obtain electric energy.Controller host is connected with control switch, can control the release of stab knife electric current.Electrode plate can be attached at people Body surface face forms current loop.In use, people can operate the controller host adjustment parameters such as electric current and voltage, To adapt to the needs of different situations.

One or more implementation details for illustrating the disclosure are described below.Described embodiment is only that this is practical new A part of the embodiment of type, instead of all the embodiments.

Detailed description of the invention

Fig. 1 is the primary structure figure of example cutter.

Fig. 2 is the top view for the casing that example shown in Fig. 1 punctures cutter.

Fig. 3 is the cross-sectional view of exemplary sleeve shown in Fig. 2.

Fig. 4 is the top view for the stab knife that example shown in Fig. 1 punctures cutter.

Fig. 5 is the cross-sectional view of example stab knife cutting part shown in Fig. 4.

Fig. 6 is the cross-sectional view of example stab knife interconnecting piece shown in Fig. 4.

Fig. 7 is the intermediate profilograph of example stab knife shown in Fig. 4.

Fig. 8 is the top view of another example stab knife.

Specific embodiment

This disclosure relates to a kind of surgical instrument used in surgical operation.In particular, this disclosure relates to which one kind can be grasped Make to be directed to the deep tissue aspiration cutter that deep tissues carry out accurate cutting and coagulation in surgical operation.

Fig. 1 shows example cutter 001.Cutter 001 is mainly by stab knife 002, casing 003, hand-held portion 004 It is formed with 005 4 part of current control unit.Stab knife 002 is placed in casing 003, can be slided at both ends forwards, backwards.Current control Portion 005 mainly includes controller host 030, attaching plug 031, control switch 032, electrode plate 033 and conducting wire 034.Controller Host 030 is connected by conducting wire 034 with hand-held portion 004, is conveyed electrical current on stab knife 002.Controller host 030 connects There is attaching plug 031, to obtain electric energy.Controller host 030 is connected with control switch 032, can control the electric current of stab knife 002 Release.In some embodiments, controller host 030 is connected with electrode plate 033.Electrode plate 033 can be attached at human body surface, group At current loop.In use, people can operate controller host 030 and adjust the parameters such as electric current and voltage, to adapt to The needs of different situations.

Fig. 2 and Fig. 3 show exemplary sleeves 003.The tube wall of casing 003 has one or more casing windows 006.Casing 003 Ellipsoidal cross section, circle, trapezoidal or other geometries, or different geometries is presented in different segments.Casing Front end 007 is slanting sharp shape, convenient to be smoothly pierced into deep tissues.In some embodiments, 003 inner face of casing has one Or multiple guide ridges 008.The end of casing 003 is connected with hand-held portion 004.The making material of casing 003 using metal or The biggish nonmetallic materials of hardness can also be made in different segments of different materials.The inner surface of casing 003 is coated with Inner insulating layer 009.

Fig. 4 to Fig. 8 shows example stab knife 002.Stab knife 002 is by stab knife point 010, stab knife cutting part 011, stab knife interconnecting piece 012 forms.There is longitudinal stab knife intermediate insulator 013 among stab knife, to separated two sides Elongated metal body, 002 two sides of stab knife have one or more stab knives to be oriented to groove 014.Stab knife point 010 is punctured Knife intermediate insulator 013 divides for body 016 on the right side of body 015 on the left of point and point.There is a left side in the front of stab knife point 010 Tip 017 and right tip 018.Stab knife point 010 is slanting sharp shape or flat pattern.In some embodiments, The direction on 010 surface of stab knife point and the angle of horizontal plane are 0 degree or 90 degree, can also be with other proper angles.

Body 015 extends rearward to be body 019 on the left of cutting part on the left of point, and body 016, which extends rearward to be, on the right side of point cuts Cut body 020 on the right side of portion.There is upper knife edge 021 in the top of stab knife cutting part 011, and there is lower blade 022 in lower section.Stab knife cutting part The top of 011 two sides respectively has a upper depth of cut to limit ridge 023, and two upper depths of cut limit ridge 023 and upper knife edge 021 Between there are two grooves 025 by longitudinal upper knife edge.The lower section of 011 two sides of stab knife cutting part respectively has a lower depth of cut to limit Ridge 024, there are two grooves 026 by longitudinal lower blade between two lower depths of cut restriction ridges 024 and lower blade 022.In difference In embodiment, the height of upper knife edge 021 can limit the height of ridge 023 greater than, equal to or less than upper depth of cut；Equally, under The height of blade 022 can also limit the height of ridge 024 greater than, equal to or less than lower depth of cut；Upper depth of cut limits ridge 023 and lower depth of cut limit ridge 024 height can greater than, equal to or less than 012 surface of stab knife interconnecting piece height.On The angle of 002 longitudinal axis of tangent line and stab knife at blade 021 and lower 022 edge of blade is 0 degree or between 0 degree to 45 degree Other degrees.In some embodiments, upper knife edge 021, lower blade 022 respectively with body 019, body on the right side of cutting part on the left of cutting part 020 is connected, and body 019, cutting part right side on the left of upper knife edge 021, lower blade 022 and cutting part in further embodiments Body 020 insulate.

Body 019 continues to extend to body 027 on the left of interconnecting piece backward on the left of cutting part, and body 020 continues backward on the right side of cutting part Extend to body 028 on the right side of interconnecting piece.In some embodiments, in the different segment of stab knife 002, stab knife intermediate insulator 013 in-plane can be in non-perpendicular other angles.Stab knife interconnecting piece 012 is connected with hand-held portion 004.

In some implementations in addition to left tip 017, right tip 018, upper knife edge 021, lower blade 022, stab knife 002 it is big Part of the surface is coated with external insulation layer 029.In a part of the embodiment, the not intermediate stab knife intermediate insulator of stab knife 002 013, the elongated metal body of two sides is connected to an entirety.Upper knife edge 021, the making material use of lower blade 022 are high The material of hardness, remaining component part of stab knife 002 is using metal material or nonmetallic materials production or each composition portion Different metal or nonmetallic materials production is respectively adopted.There are linkage and structure in hand-held portion 004, can drive Stab knife 002 and casing 003 are moved, and operator is facilitated to complete puncture and cutting operation.Stab knife in some embodiments 002 can be detached from casing 003, be used alone.

During clinical use, firstly, stab knife 002 is placed in casing 003, sharp casing front end 007 is utilized Be pierced into destination organization in, then, operator by control hand-held portion 004, make stab knife 002 in casing 003 forward or It moves backward, exposes stab knife cutting part 011, continue to move to stab knife 002, cut using upper knife edge 021 and lower blade 022 Destination organization needs as the case may be, electrode plate 033 can be affixed on skin surface in advance, in cutting process, adjustment control The current parameters of host 030 processed, operation-control switch 032, electric current reach left tip 017 and right tip by stab knife 002 018, and to destination organization release current, reach the purpose of hemostasis, adhesion, coagulation.

The scope of the present disclosure is not intended to limit or is defined in implementation content described herein and details.Moreover, this public affairs It is opened in its broader aspect, is not limited to specific detail, and the illustrative example described herein.Those skilled in the art hold Readily apparent additional advantage and modification.It therefore, can be without departing from the general design of applicant or the spirit or scope of innovation thinking In the case where, deviation is made from these details.Therefore, other to implement to be in this paper the scope of the claims.

Claims (6)

1. a kind of deep tissue aspiration cutter, comprising: stab knife；Casing；Hand-held portion；And current control unit, it is described to wear Bayonet includes: stab knife point；Stab knife cutting part and stab knife interconnecting piece；

There is blade above and below the stab knife cutting part；

There is depth of cut to limit ridge above and below the stab knife cutting part；

The stab knife cutting part, two sides depth of cut, which limits between ridge and blade, longitudinal groove；

The stab knife cutting part, front mutually continue with stab knife point, and rear mutually continues with stab knife interconnecting piece；

There are two exposed metal tips for the stab knife point；

The stab knife point, stab knife cutting part and stab knife interconnecting piece, in addition to blade and tip, remaining most surfaces It is coated with insulating layer；

The tube wall of described sleeve pipe has longitudinal elongated tube wall window；

The inner face of described sleeve pipe has longitudinal guide ridges；

The end of described sleeve pipe is connected with hand-held portion；

There is longitudinal stab knife intermediate insulator in the centre of the stab knife；

The two sides of the stab knife are elongated metal body；

There are longitudinal stab knife guiding groove in the stab knife, two sides；

The end of the stab knife is connected with hand-held portion.

2. deep tissue aspiration cutter according to claim 1, wherein have in the hand-held portion linkage and Structure is connected with stab knife and casing, can control the movement of stab knife and casing.

3. deep tissue aspiration cutter according to claim 1, wherein the hand-held portion passes through conducting wire and electric current Control unit is connected, and electric current can be sent to stab knife and casing.

4. deep tissue aspiration cutter according to claim 1, wherein the current control unit includes: controller master Machine；Attaching plug；Control switch；Electrode plate；And conducting wire.

5. deep tissue aspiration cutter according to claim 1, wherein the metal tip is mutually led with current control unit Connection, can discharge the electric energy from current control unit to destination organization in cutting process, to be completed at the same time cutting and electricity Solidifying process.

6. deep tissue aspiration cutter according to claim 4, wherein the controller host can be by electrical energy transportation To stab knife tip, and the release of stab knife tip electric current can be controlled.