Disclosure of Invention
In view of the above, the present invention aims to provide a high-frequency energy surgical instrument, so as to solve the problems that the existing high-frequency energy surgical instrument includes an electrocoagulation knife and an ultrasonic knife, and the two surgical instruments are generally used separately, but the electrocoagulation knife is easy to generate smoke and eschar when in use, the ultrasonic knife has a poor coagulation effect, different surgical instruments are required to be used for operation in different situations, and the surgical efficiency is seriously affected by changing the surgical instruments back and forth.
Based on the purpose, the invention provides a high-frequency energy surgical instrument, which comprises a handle grip, a mounting base transversely arranged at the top of the handle grip and an extension rod communicated with the center of one end of the mounting base, wherein the bottom of one end, far away from the mounting base, of the extension rod is rigidly connected with a fixing installation groove, an electric coagulation sheet is arranged on the inner wall of the fixing installation groove, and the electric coagulation sheet is used for performing electric coagulation hemostasis on human tissues; the extension rod is kept away from installation base one end top is rotated and is installed movable mounting groove, movable mounting groove internally mounted has ultrasonic blade, extension rod internally mounted has ultrasonic transducer, the ultrasonic transducer output with ultrasonic blade sliding connection, handle grip internally mounted has supersonic generator, supersonic generator signal output part with ultrasonic transducer signal input part electric connection.
Furthermore, the ultrasonic blade is close to extension rod one end is provided with arc contact block, ultrasonic transducer through this arc contact block with ultrasonic blade sliding connection.
Further, the installation base bottom is rotated and is installed the trigger, the trigger is close to handle grip one side is rotated and is installed the push rod, handle grip bottom inner wall is rotated and is installed the pendulum rod, the push rod with pendulum rod center department rotates and is connected, the movable mounting groove is close to extension rod one end bottom is rotated and is connected with the pull rod, the pull rod other end with the pendulum rod top is rotated and is connected.
Further, activity mounting groove one end top with the extension rod top is passed through the hinge and is rotated the connection, activity mounting groove receives can wind when pull rod pulling or promote the extension rod tip rotates.
Furthermore, the outside cover of push rod is equipped with reset spring, reset spring sets up the trigger with between the handle grip, reset spring is used for promoting the trigger makes its reset.
Further, the extension rod and fixed mounting groove bottom inner wall is provided with the back flow, the back flow is kept away from fixed mounting groove one end link up the mounting base sets up, the mounting base is located the back flow junction installs the backward flow interface, the backward flow interface with back flow through connection.
Furthermore, the number of the electric coagulation sheets is two, the two electric coagulation sheets are respectively arranged on two sides of the inner wall of the fixing mounting groove, the top of one end, located at the fixing mounting groove, of the return pipe is provided with a return hole, and the return hole is arranged between the two electric coagulation sheets.
Further, fixed mounting groove both sides top all is provided with soft rubber strip, soft rubber strip with the movable mounting tank bottom cooperatees.
Furthermore, a rubber vibration damping interlayer is fixedly arranged between the movable mounting groove and the ultrasonic blade and is used for blocking vibration transmission between the ultrasonic blade and the movable mounting groove.
Furthermore, the mounting base is far away from extension rod one end is provided with connects the electric socket, handle grip side top is provided with ultrasonic switch, the ultrasonic switch below is provided with the electricity congeals switch, ultrasonic switch electric connection connect the electric socket with between the supersonic generator, ultrasonic switch is used for controlling the operating condition of supersound blade, electricity congeals switch electric connection connect the electric socket with between the electricity congeals the piece, electricity congeals the switch and is used for controlling the operating condition of electricity congeals the piece.
The invention has the beneficial effects that: according to the invention, the ultrasonic blade is used for extruding the wound with large bleeding amount and high bleeding speed and the blood vessel into the fixing installation groove, and the electrocoagulation sheet in the ultrasonic blade is used for performing electrocoagulation hemostasis on the wound.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments below.
It is to be noted that technical terms or scientific terms used herein should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs, unless otherwise defined. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
As shown in fig. 1 and 2, a high-frequency energy surgical instrument comprises ahandle grip 1, amounting base 2 transversely arranged on the top of thehandle grip 1, and anextension rod 3 connected to the center of one end of themounting base 2 in a penetrating manner, wherein the bottom of one end of theextension rod 3, which is far away from themounting base 2, is rigidly connected with afixing installation groove 302, anelectrocoagulation sheet 5 is arranged on the inner wall of thefixing installation groove 302, and theelectrocoagulation sheet 5 is used for performing electrocoagulation hemostasis on human tissues; the top of one end, far away from themounting base 2, of theextension rod 3 is rotatably provided with amovable mounting groove 301, anultrasonic blade 6 is mounted inside themovable mounting groove 301, anultrasonic transducer 601 is mounted inside theextension rod 3, the output end of theultrasonic transducer 601 is slidably connected with theultrasonic blade 6, anultrasonic generator 602 is mounted inside thehandle grip 1, and the signal output end of theultrasonic generator 602 is electrically connected with the signal input end of theultrasonic transducer 601;
wherein, one side of theultrasonic blade 6 is set to be cylindrical, theultrasonic blade 6 can be stably clamped in themovable mounting groove 301 through the cylindrical structure arranged on the side, so that theultrasonic blade 6 can be prevented from falling off from themovable mounting groove 301, and the side of theultrasonic blade 6 positioned outside themovable mounting groove 301 has a certain thickness and is not sharp, under the condition that theultrasonic generator 602 is not started, theultrasonic blade 6 does not generate mechanical vibration and theultrasonic blade 6 has a certain thickness, so that the human tissue can not be cut off by only shearing force, and the human tissue can be conveniently pressed on theelectrocoagulation piece 5 by the unsharpenedultrasonic blade 6 under the condition that theultrasonic generator 602 is not started, so that theelectrocoagulation piece 5 is utilized to carry out electrocoagulation hemostasis on the human tissue, and the human tissue can not be cut;
themovable mounting groove 301 and the fixedmounting groove 302 are both of a half round pipe structure, and the diameter of the closedmovable mounting groove 301 and the closed fixedmounting groove 302 is the same as that of theextension rod 3, so that when themovable mounting groove 301 and the closed fixedmounting groove 302 are closed, theextension rod 3 can form a smooth rod-shaped structure, and can conveniently extend into the human body to perform laparoscopic surgery;
when in use, the movable mounting groove 301 and the fixed mounting groove 302 are closed tightly, the fixed mounting groove 302 is fixedly connected with the extension rod 3, and the movable mounting groove 301 and the fixed mounting groove 302 can form a complete rod-shaped structure with the extension rod 3 after being closed, so that a user can conveniently stretch the movable mounting groove 301 and the fixed mounting groove 302 into the abdominal cavity of a human body, when the tissue inside the human body needs to be cut, the movable mounting groove 301 is opened first to expose the ultrasonic blade 6 inside the movable mounting groove 301, the ultrasonic generator 602 is started to send a signal to the ultrasonic transducer 601, the ultrasonic transducer 601 converts the electric signal into high-frequency mechanical vibration and transmits the high-frequency mechanical vibration to the ultrasonic blade 6, the ultrasonic blade 6 can vibrate at high frequency, and the high-frequency vibration of the ultrasonic blade 6 is utilized to cut the tissue of the human body, although the cutting edge of the ultrasonic blade 6 is not sharp, the ultrasonic blade 6 is driven by the ultrasonic transducer 601, so that the ultrasonic blade 6 can cut human tissues by means of high-frequency vibration, and has a good cutting effect, secondly, the ultrasonic blade 6 can contact tissue proteins at an ultra-high vibration frequency when cutting the human tissues, and generates a cavitation effect, so that moisture in the tissues is rapidly vaporized, protein hydrogen bonds are broken, and the proteins are denatured and coagulated, thereby achieving the effects of cutting, coagulating wounds and stopping bleeding to a certain extent, but for some wounds, blood vessels and the like with much bleeding and high bleeding speed, because the hemostatic effect of the ultrasonic blade 6 is limited, the hemostatic effect of the wounds cannot be guaranteed, and therefore, the electrodes are required to be used for performing electrocoagulation hemostasis on the wounds, so that two electrocoagulation sheets 5 are arranged inside the fixed mounting groove 302, the electric coagulation hemostatic device is used for performing electric coagulation hemostasis on wounds, blood vessels and the like with more bleeding and higher bleeding speed, during operation, the ultrasonic generator 602 is firstly closed, so that the ultrasonic blade 6 does not generate high-frequency vibration any more, the cutting edge of the ultrasonic blade 6 is not sharp, when the ultrasonic blade 6 loses the effect of high-frequency vibration, human body tissues cannot be cut, the wounds needing hemostasis can be extruded inside the fixed mounting groove 302 by the ultrasonic blade 6 when the movable mounting groove 301 is closed, the wounds are extruded by the movable mounting groove 301 and the fixed mounting groove 302, blood does not flow outwards any more, the power supply of the electric coagulation sheet 5 is switched on at the moment, the electric coagulation sheet 5 can heat the wounds or the blood vessels at the bleeding position by high temperature, the protein at the position is heated, the protein at the position is denatured and coagulated, and the influence range of the high temperature on the protein is large, the electric coagulation can perform electric coagulation on wounds or the blood vessels with more bleeding, The wound and the blood vessel with high bleeding speed can be rapidly closed, so that the bleeding of the wound can be rapidly and efficiently stopped.
In summary, the present invention can cut tissue in a human body by using high frequency vibration generated by theultrasonic blade 6, and at the same time, can coagulate a cut wound by using the characteristic that theultrasonic blade 6 denaturalizes and coagulates proteins of tissue proteins at an ultra-high vibration frequency, and then can squeeze a wound with a large blood flow amount and a high blood flow speed and a blood vessel inside thefixing mounting groove 302 by using theultrasonic blade 6, and perform electrocoagulation hemostasis on the wound by using theelectrocoagulation sheet 5 inside the wound, so that the present invention has a good blood coagulation hemostasis effect on the wound with a large blood flow amount and a high blood flow speed and the blood vessel because the wound does not bleed rapidly under the squeezing of theultrasonic blade 6.
Further, an arc-shaped contact block is arranged at one end, close to theextension rod 3, of theultrasonic blade 6, and theultrasonic transducer 601 is connected with theultrasonic blade 6 in a sliding manner through the arc-shaped contact block;
wherein, the mechanical vibration output end ofultrasonic transducer 601 is connected withultrasonic blade 6 in a sliding manner, in order to ensure the stability of the contact betweenultrasonic transducer 601 andultrasonic blade 6, a sliding groove needs to be arranged inside the arc contact block at the contact position betweenultrasonic blade 6 andultrasonic transducer 601, and the mechanical vibration output end ofultrasonic transducer 601 is clamped inside the sliding groove in a sliding manner, so that theultrasonic blade 6 and theultrasonic transducer 601 can slide and cannot fall off.
Further, atrigger 101 is rotatably mounted at the bottom of the mountingbase 2, apush rod 402 is rotatably mounted on one side, close to thehandle grip 1, of thetrigger 101, aswing rod 403 is rotatably mounted on the inner wall of the bottom of thehandle grip 1, thepush rod 402 is rotatably connected with the center of theswing rod 403, apull rod 404 is rotatably connected to the bottom of the movable mountinggroove 301, close to one end of theextension rod 3, and the other end of thepull rod 404 is rotatably connected with the top of theswing rod 403; the top of one end of themovable installation groove 301 is rotatably connected with the top of theextension rod 3 through a hinge, and themovable installation groove 301 can rotate around the end of theextension rod 3 when pulled or pushed by thepull rod 404;
thetrigger 101 is annular, so that a user can conveniently insert fingers into thetrigger 101, and the movable mountinggroove 301 is driven to be opened or closed by pushing or pulling thetrigger 101;
in use, the user pulls thetrigger 101 towards thehandle grip 1, so that thetrigger 101 can push theswing link 403 to rotate around one end of the bottom part thereof along the pointer by thepush rod 402, when theswing link 403 rotates clockwise around one end of the bottom thereof, the top of theswing link 403 can pull the bottom of themovable installation groove 301 through thepull rod 404, so that themovable installation groove 301 can rotate around theextension rod 3 to close the same, thereby facilitating the shearing and clamping of human tissues, when the user pushes thetrigger 101 away from thehandle grip 1, thetrigger 101 is allowed to pull theswing link 403 by thepush rod 402 to rotate counterclockwise around the bottom end thereof, when theswing rod 403 rotates counterclockwise around the bottom thereof for a period of time, the top of theswing rod 403 can push the bottom of themovable installation groove 301 through thepull rod 404, themovable installation groove 301 can rotate around theextension rod 3 to be opened, so that the human tissue can be conveniently cut and clamped next time.
Further, areturn spring 401 is sleeved outside thepush rod 402, thereturn spring 401 is arranged between thetrigger 101 and thehandle grip 1, and thereturn spring 401 is used for pushing thetrigger 101 to return;
when using, owing to set upreset spring 401 for when the user does not exert external force to trigger 101, trigger 101 can receive resetspring 401's promotion and automatically keep away fromhandle grip 1, thereby can makeactivity mounting groove 301 open automatically, need not the user and promote opening that trigger 101 can realizeactivity mounting groove 301, more add and can use this device by the person of facilitating the use.
Furthermore, areturn pipe 701 is arranged on theextension rod 3 and the inner wall of the bottom of the fixed mountinggroove 302, one end of thereturn pipe 701, which is far away from the fixed mountinggroove 302, is arranged to penetrate through the mountingbase 2, areturn interface 703 is arranged at the connection position of thereturn pipe 701 on the mountingbase 2, and thereturn interface 703 is connected with thereturn pipe 701 in a penetrating manner; twoelectrocoagulation sheets 5 are arranged, the twoelectrocoagulation sheets 5 are respectively arranged on two sides of the inner wall of the fixed mountinggroove 302, the top of one end of thereturn pipe 701, which is positioned on the fixed mountinggroove 302, is provided with areturn hole 702, and thereturn hole 702 is arranged between the twoelectrocoagulation sheets 5;
the twoelectrocoagulation sheets 5 are arranged, so that two electrocoagulation hemostatic areas can be formed when the wound is subjected to electrocoagulation, and after one of the electrocoagulation areas is flushed away by the pressure of blood, the second electrocoagulation hemostatic area can be used for coagulation closure of the wound, so that blood can be prevented from seeping out of the wound more effectively;
wherein, because the cutter head of the traditional electrocoagulation knife is exposed outside, and the cutter head of the electrocoagulation knife can not disappear immediately due to heat after power failure, the cutter head still has certain temperature, and doctors need to move the position of the electrocoagulation knife continuously in the operation process, which will lead the cutter head still having temperature to touch other healthy tissues of human body, easily cause damage to the healthy tissues of human body, and generate secondary damage, the scheme arranges theelectrocoagulation piece 5 in the fixed mountinggroove 302, and theelectrocoagulation piece 5 is separated from the inner wall of the fixed mountinggroove 302 through thereturn pipe 701, thus leading thehotter electrocoagulation piece 5 not to touch other tissues of human body, and because theelectrocoagulation piece 5 is separated by thereturn pipe 701, the heat generated by theelectrocoagulation piece 5 can not be conducted to other tissues of human body through the fixed mountinggroove 302, the scheme is safer when in use, can not cause secondary damage to other tissues of the human body.
When in use, thebackflow interface 703 is communicated with an external negative pressure aspirator, so that the negative pressure aspirator can suck substances from the inside of a human body to the outside through thebackflow interface 703 and thebackflow pipe 701 through thebackflow hole 702; the negative pressure suction scheme is mainly used for sucking and discharging smoke generated when theelectrocoagulation piece 5 electrocoagulation human tissue, can effectively avoid the blocking of the smoke generated in laparoscopic surgery to the sight of a doctor, and can simultaneously avoid the influence of the smoke on internal organs and other tissues in the human body, the traditional smoke suction and elimination can be generally carried out for clearing treatment after the smoke is generated and diffused in the human body, and thebackflow hole 702 of the device is arranged between the twoelectrocoagulation pieces 5, so that the smoke can be sucked and discharged simultaneously when theelectrocoagulation pieces 5 are used for electrocoagulation, and the diffusion of the smoke is effectively avoided; secondly, above-mentioned negative pressure suction scheme can also be to the hydrops in the human body suction discharge, only need during the use submerge the hydrops withreturn port 702, the hydrops alright in order to be discharged throughreturn port 702 by negative pressure suction device throughback flow pipe 701.
Further, soft rubber strips 303 are arranged on the tops of the two sides of the fixed mountinggroove 302, and the soft rubber strips 303 are matched with the bottom of the movable mountinggroove 301;
when using, whenactivity mounting groove 301 and fixed mountinggroove 302 are closed to press from both sides and get human tissue, can make to press from both sides owing to be provided withsoft rubber strip 303 and get gentler, can not lead to human tissue to receive the damage because the clamp ofactivity mounting groove 301 and fixed mountinggroove 302 is got.
Further, a rubbervibration damping interlayer 9 is fixedly arranged between the movable mountinggroove 301 and theultrasonic blade 6, and thevibration damping interlayer 9 is used for blocking vibration transmission between theultrasonic blade 6 and the movable mountinggroove 301;
wherein, because theultrasonic blade 6 can generate high-frequency vibration when in use, if theultrasonic blade 6 is directly and rigidly connected with the movable mountinggroove 301, the movable mountinggroove 301 can generate high-frequency vibration along with theultrasonic blade 6, and if the movable mountinggroove 301 also generates high-frequency vibration, the movable mountinggroove 301 can easily contact other healthy human tissues to injure the other healthy human tissues;
thevibration damping interlayer 9 is fixedly connected with the inner wall of the movable mountinggroove 301, thevibration damping interlayer 9 is made of soft rubber, and the rubber has the effect of isolating vibration, so that thevibration damping interlayer 9 is arranged between theultrasonic blade 6 and the movable mountinggroove 301 to effectively isolate the vibration of theultrasonic blade 6 and prevent the movable mountinggroove 301 from vibrating along with the vibration; secondly, the dampinginterlayer 9 is internally provided with a groove matched with theultrasonic blade 6, theultrasonic blade 6 is conveniently installed in the dampinginterlayer 9, the end part of the dampinginterlayer 9 is sealed, theultrasonic blade 6 is prevented from being separated from the dampinginterlayer 9 due to vibration, and theultrasonic blade 6, the dampinginterlayer 9 and theultrasonic transducer 601 are not fixedly connected, so that theultrasonic blade 6 can be taken out of the dampinginterlayer 9, and theultrasonic blade 6 is convenient to replace.
Further, anelectric connection socket 201 is arranged at one end, far away from theextension rod 3, of the mountingbase 2, anultrasonic switch 801 is arranged at the top of one side face of thehandle grip 1, anelectric coagulation switch 802 is arranged below theultrasonic switch 801, theultrasonic switch 801 is electrically connected between theelectric connection socket 201 and theultrasonic generator 602, theultrasonic switch 801 is used for controlling the working state of theultrasonic blade 6, theelectric coagulation switch 802 is electrically connected between theelectric connection socket 201 and theelectric coagulation sheet 5, and theelectric coagulation switch 802 is used for controlling the working state of theelectric coagulation sheet 5;
theelectrocoagulation switch 802 comprises two separate switches, and can control the twoelectrocoagulation pieces 5 to work respectively, or the two separate switches can be connected with a circuit at the same time to control the twoelectrocoagulation pieces 5 to work at the same time; when one of theelectrocoagulation sheets 5 is controlled to be electrified, human tissues can be pressed on the electrifiedelectrocoagulation sheet 5 through theultrasonic blade 6 so as to be cut; when the twoelectrocoagulation pieces 5 are controlled to be electrified, the human tissue can be subjected to coagulation treatment by the high-frequency energy generated by the twoelectrocoagulation pieces 5;
theultrasonic switch 801 and theelectrocoagulation switch 802 are automatic reset button switches, when the automatic reset button switches are used, circuits are communicated by touching and pressing, and when the automatic reset button switches are pressed by touching again, the button switches automatically reset and disconnect the circuits; therefore, theultrasonic blade 6 can be controlled to work by theultrasonic switch 801 alone, theelectrocoagulation sheet 5 can be controlled to work by theelectrocoagulation switch 802 alone, theultrasonic blade 6 and theelectrocoagulation sheet 5 can be controlled by theultrasonic switch 801 and theelectrocoagulation switch 802 simultaneously, and the purpose that the energy of theacoustic blade 6 and theelectrocoagulation sheet 5 is mixed and output to cut human tissues is achieved;
when in use, a user can control the electrifying state of theultrasonic blade 6 or theelectrocoagulation blade 5 by holding thehandle grip 1 and pressing theultrasonic switch 801 or theelectrocoagulation switch 802 by a thumb, thereby controlling the operation process of hemostasis of the ultrasonic cutting human body tissue or the electrocoagulation wound.
In summary, the following steps: when in use, the movable mounting groove 301 and the fixed mounting groove 302 are closed tightly, the fixed mounting groove 302 is fixedly connected with the extension rod 3, and the movable mounting groove 301 and the fixed mounting groove 302 can form a complete rod-shaped structure with the extension rod 3 after being closed, so that a user can conveniently stretch the movable mounting groove 301 and the fixed mounting groove 302 into the abdominal cavity of a human body, when the tissue inside the human body needs to be cut, the movable mounting groove 301 is opened first to expose the ultrasonic blade 6 inside the movable mounting groove 301, the ultrasonic generator 602 is started to send a signal to the ultrasonic transducer 601, the ultrasonic transducer 601 converts the electric signal into high-frequency mechanical vibration and transmits the high-frequency mechanical vibration to the ultrasonic blade 6, the ultrasonic blade 6 can vibrate at high frequency, and the high-frequency vibration of the ultrasonic blade 6 is utilized to cut the tissue of the human body, although the cutting edge of the ultrasonic blade 6 is not sharp, the ultrasonic blade 6 is driven by the ultrasonic transducer 601, so that the ultrasonic blade 6 can cut human tissues by means of high-frequency vibration, and has a good cutting effect, secondly, the ultrasonic blade 6 can contact tissue proteins at an ultra-high vibration frequency when cutting the human tissues, and generates a cavitation effect, so that moisture in the tissues is rapidly vaporized, protein hydrogen bonds are broken, and the proteins are denatured and coagulated, thereby achieving the effects of cutting, coagulating wounds and stopping bleeding to a certain extent, but for some wounds, blood vessels and the like with much bleeding and high bleeding speed, because the hemostatic effect of the ultrasonic blade 6 is limited, the hemostatic effect of the wounds cannot be guaranteed, and therefore, the electrodes are required to be used for performing electrocoagulation hemostasis on the wounds, so that two electrocoagulation sheets 5 are arranged inside the fixed mounting groove 302, the electric coagulation hemostatic device is used for performing electric coagulation hemostasis on wounds, blood vessels and the like with more bleeding and higher bleeding speed, during operation, the ultrasonic generator 602 is firstly closed, so that the ultrasonic blade 6 does not generate high-frequency vibration any more, the cutting edge of the ultrasonic blade 6 is not sharp, when the ultrasonic blade 6 loses the effect of high-frequency vibration, human body tissues cannot be cut, the wounds needing hemostasis can be extruded inside the fixed mounting groove 302 by the ultrasonic blade 6 when the movable mounting groove 301 is closed, the wounds are extruded by the movable mounting groove 301 and the fixed mounting groove 302, blood does not flow outwards any more, the power supply of the electric coagulation sheet 5 is switched on at the moment, the electric coagulation sheet 5 can heat the wounds or the blood vessels at the bleeding position by high temperature, the protein at the position is heated, the protein at the position is denatured and coagulated, and the influence range of the high temperature on the protein is large, the electric coagulation can perform electric coagulation on wounds or the blood vessels with more bleeding, The wound and the blood vessel with high bleeding speed can be quickly closed, so that the wound can be quickly and efficiently stopped.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to those examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The present invention is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.