Scissor type ultrasonic energy device

Abstract

Provided is a scissor type ultrasonic energy device. A scissors-type ultrasonic energy device according to one aspect of the present invention may comprise: a first handle part having a first space capable of accommodating a first finger of a user; the second handle part is provided with a second space capable of accommodating a second finger of the user, the tail end of the second handle part is provided with a shaft part for transmitting generated ultrasonic waves, and the tail end of the first handle part is provided with a clamp part; the forceps part and the shaft part press at least a part of a body together and cut at least a part of tissues or blood vessels of the body on the basis of vibration energy and thermal energy generated by the ultrasonic waves, and the first handle part and the second handle part are connected with a predetermined shaft as a reference, rotate with the shaft as a reference and are folded. And a second handle portion configured to engage the jaw portion with the shaft to perform the pressing and cutting actions, the second handle portion including a transducer generating ultrasonic waves and a power connector connected to a cable of a power supply portion to provide power.

Description

Technical Field

[0001] The invention relates to a scissors-type energy device. Background Art

[0002] Laparoscopic surgery is a procedure in which a small hole is made in the side of the abdomen, air is injected to expand the abdominal cavity for easier observation, and then the surgery is performed while observing the inside of the abdominal cavity.

[0003] Laparoscopic surgery is simpler than open surgery, which involves cutting open the abdomen for surgery, and has gained popularity in recent years because the incision area is narrow and recovery is faster.

[0004] Many diseases can be treated by examining and operating on organs within the abdominal cavity using a laparoscope, and various surgical tools, including probes, are being developed to enable examination and surgery through the smallest of openings. In particular, surgical instruments that use ultrasound to cut surgical sites are being developed.

[0005] Korean Patent Publication No. 2014-0147843 discloses a surgical instrument using ultrasonic waves, which cuts a surgical site by maximizing the intensity of ultrasonic waves.

[0006] However, when cutting a surgical site or a blood vessel, in addition to the intensity of the ultrasound, the technology to accurately clamp the target and prevent damage to the cutting site is also an important issue.

[0007] If the tissue or blood vessels at the surgical site are damaged, it may cause bleeding or delay recovery time.

[0008] In addition, Korean Patent Publication No. 2014-0079785 discloses a surgical instrument having an integrated blade, which cuts a blood vessel or tissue by driving a cutter member.

[0009] However, the blade shape of this cutter member is straight or concave semicircular, so when cutting blood vessels or tissues, not only the blood vessels are pushed to one side, making cutting difficult, but there is also a risk of the blood vessels being damaged by being pushed away or cut at multiple locations.

[0010] Therefore, it is necessary to develop an energy device that can precisely cut blood vessels or tissues.

[0011] Furthermore, there is a need to develop an energy device that can minimize vascular damage during cutting.

[0012] In addition, when clamping tissue or blood vessels, there may be a situation where the exact position cannot be found immediately. In this case, if the tissue or blood vessel is clamped forcefully, damage may occur in unrelated parts outside the treatment area. If the clamp is clamped forcefully at the beginning, there is also a risk of damaging the instrument. Therefore, a method is needed to solve these problems.

[0013] In addition, loss and noise problems may occur due to interference events that occur during the process of the piezoelectric element generating ultrasonic waves, the process of amplifying ultrasonic waves through a horn, the process of the piezoelectric body receiving ultrasonic waves (vibrations) and moving back and forth, and the like.

[0014] Therefore, there is an increasing demand for energy devices that can solve these problems.

[0015] Prior art literature

[0016] Patent Literature

[0017] (1) (Patent Document 0001) Korean Patent Publication No. 2014-0147843

[0018] (2) (Patent Document 0002) Korean Patent Publication No. 2014-0079785 Summary of the invention

[0019] Technical Problems to be Solved by the Invention

[0020] The object of the present invention is to provide a scissor-type ultrasonic energy device that can firmly clamp a blood vessel to accurately cut the blood vessel.

[0021] In addition, the present invention aims to provide a scissor-type ultrasonic energy device that can predict the force acting on the target when the handle is pulled, so it has a good sense of use.

[0022] In addition, an object of the present invention is to provide a scissor-type ultrasonic energy device that can neatly cut blood vessels or tissues.

[0023] In addition, an object of the present invention is to provide a scissor-type ultrasonic energy device that minimizes wounds when cutting blood vessels or tissues.

[0024] In addition, the present invention aims to provide a scissor-type ultrasonic energy device, which has more than one button and can perform output operations by pressing the button, and is selectively provided with a sealing and cutting (Seal & Cut) button and a sealing (Seal) button.

[0025] In addition, the present invention aims to provide a scissor-type ultrasonic energy device, in which the noise or vibration generated in the process of converting electricity into ultrasonic vibration energy through multiple ceramic piezoelectric elements is absorbed by the first rubber member and the second rubber member respectively, so that the action of cutting tissue can be stably performed.

[0026] On the other hand, the technical problems to be solved by the present invention are not limited to the above-mentioned technical problems, and those skilled in the art will clearly understand other technical problems not mentioned from the following description.

[0027] Technical Solution

[0028] To solve the above technical problems, a scissor-type ultrasonic energy device according to one aspect of the present invention may include: a first handle portion having a first space capable of accommodating a first finger of a user; and a second handle portion having a second space capable of accommodating a second finger of a user, a shaft portion for transmitting the generated ultrasonic wave is provided at the end of the second handle portion, a jaw is provided at the end of the first handle portion, the jaw and the shaft portion are used to squeeze at least a part of a body and cut at least a part of tissue or blood vessels of the body based on the vibration energy and heat energy generated by the ultrasonic wave, the first handle portion and the second handle portion are connected with a predetermined axis as a reference, and the first handle portion and the second handle portion are rotated and closed with respect to the axis as a reference, so that the jaw is engaged with the axis to perform the squeezing action and the cutting action, and the second handle portion The part includes: a transducer, which generates the ultrasonic wave; and a power connector, which is connected to the cable of the power supply part to provide power, the transducer includes: a piezoelectric element, which generates the ultrasonic wave by using the piezoelectric phenomenon; a horn, which amplifies the generated ultrasonic wave; a piezoelectric body, which receives the amplified ultrasonic wave from the horn and moves back and forth to transmit the amplified ultrasonic wave to the shaft part; and a piezoelectric shell, which surrounds the piezoelectric element, the clamp part includes: a support part, the upper surface of which has a curved shape; and a clamping pad, which is inserted into and connected to the lower end of the support part, polytetrafluoroethylene is arranged on the inner side surface of the clamping pad facing the shaft part, and the bottom surface of the polytetrafluoroethylene coating has a pattern shape to support the squeezing action, and the pattern shape is realized in the form of radial serrations, and the shaft part includes an inner shaft (inner The inner shaft passes through a pole tube and one end of the inner shaft is exposed to the outside, so that the shaft portion is exposed to the outside together with the inner shaft, the pole tube is formed by a two-section structure, and the two-section structure includes a first area allowing the one end of the inner shaft and the body to pass through and a second area allowing the one end to pass through, when the pliers are engaged with the shaft, the clamping flange arranged at the upper end of the pole tube accommodates at least a part of the first handle portion, and the movement of the accommodated first handle portion is restricted and the shaking is reduced.

[0029] Furthermore, at least a portion of the vibration energy and the heat energy applied to the cutting action can be changed according to the shape of the shaft portion, and one side of the clamping flange is The morphology is implemented to further limit the movement of the first handle portion received, thereby guiding the reduction of shaking. The snap-fit ​​flange allows the first handle portion to be received only when it is at a predetermined angle, thereby guiding the pliers to engage with the shaft at a predetermined angle.

[0030] Furthermore, the second handle portion may further include: a first button and a second button, for providing at least one of a sealing function and a cutting function.

[0031] Furthermore, the shaft portion is included on an inner shaft, and the inner shaft is connected in a manner of exposing one end of the inner shaft to the outside by utilizing a pole tube, so that the shaft portion is exposed and arranged at the end of the second handle portion, and the other end of the inner shaft can be connected to one end of the transducer.

[0032] Furthermore, the scissor-type ultrasonic energy device may further include: a plurality of rubber pieces for counteracting interference generated in at least a part of the ultrasonic generation process, the ultrasonic amplification process and the ultrasonic transmission process.

[0033] Furthermore, the plurality of rubber parts may include: a rubber part disposed between the amplitude transformer and the piezoelectric body.

[0034] Beneficial Effects

[0035] The present invention may provide an ultrasonic energy device.

[0036] In addition, the present invention can provide a scissor-type ultrasonic energy device that can predict the force acting on the target when the operating rod is pulled, so it has a good sense of use.

[0037] In addition, the present invention can provide a scissor-type ultrasonic energy device that can neatly cut blood vessels or tissues.

[0038] Furthermore, the present invention can provide a scissor-type ultrasonic energy device that minimizes wounds when cutting blood vessels or tissues.

[0039] In addition, the present invention can provide a scissor-type ultrasonic energy device, which has more than one button and can perform output operation by pressing the button, and has a seal and cut button and a seal button separately provided.

[0040] In addition, the present invention can provide a scissor-type ultrasonic energy device that adjusts the pressure on the tissue according to the pressure intensity on the end effector by performing double absorption in two stages through a rubber block.

[0041] In addition, the present invention can provide a scissor-type ultrasonic energy device, in which the interference generated in the process of converting electricity into ultrasonic vibration energy through multiple ceramic piezoelectric elements is absorbed by rubber parts respectively, so that stable movement can be achieved.

[0042] In addition, the present invention can improve the effect by designing the shape of the Teflon jaw serration to be radial.

[0043] In addition, the present invention can be easily assembled by adopting a two-section jaw pipe shape.

[0044] In addition, the present invention can prevent shaking by changing the assembly structure of the jaw blade and preventing shaking by a body guide.

[0045] However, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1a and Figure 1b is a diagram showing a scissors-type ultrasonic energy device according to an embodiment of the present invention.

[0047] Figure 2a and Figure 2b This is a diagram for explaining the overall structure of a scissor-type ultrasonic energy device related to the present invention.

[0048] Figure 3 : is a diagram showing a forceps part in an energy device according to an embodiment of the present invention.

[0049] Figure 4 is a diagram showing a clip pad according to an embodiment of the present invention.

[0050] Figure 5 1 is a diagram showing a state in which a support portion and a clamp pad are combined in a jaw portion according to an embodiment of the present invention.

[0051] Figures 6a to 6d A specific example of a coupling structure between a shaft portion extending in the length direction and a jaw portion according to the present invention is shown.

[0052] Figure 7a and Figure 7b 1 is a diagram showing a state in which the forceps part is driven in the energy device according to the embodiment of the present invention.

[0053] Figure 8An example of a handle portion provided with an operating rod unit, a spring unit, a transducer, a housing, etc. in an energy device according to an embodiment of the present invention is shown.

[0054] Fig. 9 Shows Figure 8 An example of the specific internal structure of the device described in .

[0055] Fig.10 and Fig.11 Specific examples of the piezoelectric body (PIEZO BODY) and the transducer according to the present invention are shown.

[0056] Figures 12a to 12d An example of a structure for preventing shaking by a jaw blade assembly structure and a body guide is shown.

[0057] Fig.13 It is used to illustrate Figures 6a to 6d and Figures 12a to 12d A diagram of the structure described in . DETAILED DESCRIPTION

[0058] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0059] The present invention can make various changes and have various embodiments, and specific embodiments will be shown in the drawings and described in detail below. This is not intended to limit the present invention to specific embodiments, and can be understood to include all changes, equivalents and substitutes included in the spirit and technical scope of the present invention.

[0060] When describing the present invention, terms such as "first", "second", etc. may be used to describe various constituent elements, but the constituent elements may not be limited by these terms. The terms are only used for the purpose of distinguishing one constituent element from another constituent element. For example, without departing from the scope of the present invention, a first constituent element may be referred to as a second constituent element, and similarly, a second constituent element may also be referred to as a first constituent element.

[0061] When a certain component is referred to as being "connected" or "coupled" to another component, it can be understood that it can be directly connected or coupled to the other component, but other components can exist in between. On the other hand, when it is mentioned that a certain component is "directly connected" or "directly coupled" to another component, it should be understood that there are no other components in between.

[0062] The terms used in this specification are only used to describe specific embodiments and are not intended to limit the present invention. Unless the context clearly indicates otherwise, a singular expression may include a plural expression.

[0063] It should be understood that in this specification, terms such as "include" or "have" are intended to indicate the existence of the features, numbers, steps, operations, constituent elements, parts or combinations thereof described in the specification, and do not preclude the existence or additional possibilities of one or more other features, numbers, steps, operations, constituent elements, parts or combinations thereof.

[0064] In addition, unless otherwise defined, all terms used in this specification, including technical or scientific terms, may have the same meaning as commonly understood by ordinary technicians in the technical field to which the present invention belongs. Terms defined in commonly used dictionaries may be interpreted as having the same meaning as they have in the context of the relevant technology, and unless clearly defined in this specification, should not be interpreted as idealized or overly formal meanings.

[0065] Scissor-type ultrasonic energy device

[0066] Figure 1a and Figure 1b is a diagram showing a scissors-type ultrasonic energy device according to an embodiment of the present invention.

[0067] Reference Figure 1a and Figure 1b The energy device 1000 according to the present invention may include a first handle portion 1100 , a pliers portion 1200 , a second handle portion 1300 , and a power connector 1400 disposed at a distal end of the second handle portion 1300 .

[0068] like Figure 1a and Figure 1b As shown, the first handle portion 1100 is formed into a shape that can hook the user's finger.

[0069] A forceps part 1200 is provided at the ends of the first handle part 1100 and the second handle part 1300 . The forceps part 1200 is also called an end effector.

[0070] The forceps part 1200 includes polytetrafluoroethylene, a jaw blade 1220, etc., and transmits ultrasound to the tissue in need of treatment through the shaft 1210. The jaw blade 1220 and the shaft 1210 can cut the tissue or blood vessel through the vibration energy and heat energy generated by the ultrasound while squeezing the cutting part.

[0071] Reference Figure 1b The other end of the clamp part 1200 is connected to the inner shaft 1320 .

[0072] Furthermore, the other end of the inner shaft 1320 is connected to the transducer 1330 .

[0073] The second handle portion 1300 includes the inner shaft 1320 and the transducer 1330 described above, and provides another space for hooking the user's finger.

[0074] Therefore, the user can control the opening and closing motion of the pliers portion 1200 by inserting fingers into the empty spaces of the first handle portion 1100 and the second handle portion 1300 to perform a motion similar to using scissors.

[0075] Specifically, the second handle portion 1300 includes an operating rod unit 1310 , an inner shaft 1320 , a transducer 1330 , and a housing.

[0076] In addition, the power connector 1400 is a structure connected to a cable of a power supply unit (not shown), and the second handle unit 1300 and the power connector 1400 according to the present invention may also be formed integrally.

[0077] Figure 2a and Figure 2b This is a diagram for explaining the overall structure of a scissor-type ultrasonic energy device related to the present invention.

[0078] Reference Figure 2a and Figure 2b , showing the specific internal structure of the scissors-type ultrasonic energy device 1000 proposed by the present invention.

[0079] First, the first handle portion 1100 may include a first space portion 1112 for a user to hook fingers and a first terminal portion 1111 , wherein the first terminal portion 1111 includes a jaw blade 1220 .

[0080] As described above, the forceps part 1200 is provided at the ends of the first handle part 1100 and the second handle part 1300 . The forceps part 1200 is also called an end effector.

[0081] The pliers part 1200 includes a shaft part 1210 in addition to the pliers blade 1220 described above, and the shaft part 1210 is provided at the end of the second handle part 1300 .

[0082] Polytetrafluoroethylene 1211 may be disposed on the inner side of the clamping pad 1230 of the jaw blade 1220 facing the shaft portion 1210 .

[0083] Also, the coating of the polytetrafluoroethylene 1211 and / or the bottom surface of the polytetrafluoroethylene 1211 may have a pattern shape to better clamp the blood vessel.

[0084] The forceps part 1200 is also called an end effector. The forceps part 1200 transmits ultrasound to the tissue in need of treatment through the shaft part 1210, and the forceps blade 1220 and the shaft part 1210 can cut the tissue or blood vessel through the vibration energy and heat energy generated by the ultrasound while squeezing the cutting part.

[0085] From the structure of the second handle portion 1300, the shaft portion 1210 is included on the inner shaft 1320, and the inner shaft 1320 is connected in a manner of exposing one end of the inner shaft 1320 to the outside by utilizing a pole tube 1312, so that the shaft portion 1210 is exposed and configured at the end of the second handle portion 1300, and the other end of the inner shaft 1320 is connected to one end of the transducer 1330.

[0086] The pin 1113 and the screw 1114 may be used to assist the connection between the jaw blade 1220 and the shaft portion 1210. In addition, the screw 1115 may be used to assist the connection between the first space portion 1112 and the first terminal portion 1111.

[0087] The other end of the inner shaft 1320 is connected to the transducer 1330 , and the inner shaft 1320 , the pole tube 1312 , the transducer 1330 , etc. are built into the 2-1 housing 1510 and the 2-2 housing 1520 of the second handle portion 1300 .

[0088] In addition, the second handle portion 1300 may be provided with a lever unit 1310 and a second button 1311 .

[0089] A pole tube 1312 may be included to control the motion of the operating lever unit 1310 and the second button 1311 , and the inner shaft 1320 may be fixed using a pin 1530 .

[0090] In addition, the power connector 1400 is a structure connected to a cable of a power supply unit (not shown), and the second handle unit 1300 and the power connector 1400 according to the present invention may also be formed integrally.

[0091] As described above, the user can use the second handle 1300 by hooking his fingers into the first space 1112 of the first handle 1100 and the second space 1300 a and 1300 b on the 2-1 shell 1510 and the 2-2 shell 1520 of the second handle 1300 .

[0092] Therefore, the user can control the opening and closing motion of the forceps part 1200 by hooking fingers into the first space part 1112 and the second space parts 1300a and 1300b to perform a motion similar to using scissors.

[0093] Thus, the jaw blade 1220 and the shaft 1210 can selectively perform an action of compressing a cutting site or an action of cutting tissue or a blood vessel based on vibration energy and heat energy generated by ultrasonic waves.

[0094] Figure 2b Shown by Figure 2a The final form of the energy device 1000 is formed by combining the specific structures described in the.

[0095] Hereinafter, the specific structure of the pliers part 1200 and the second handle part 1300 according to the present invention will be described with reference to the accompanying drawings.

[0096] Pliers

[0097] Figure 3 : is a diagram showing a forceps part in an energy device according to an embodiment of the present invention.

[0098] like Figure 3 As shown, the forceps portion 1200 includes a forceps blade 1220 and a shaft portion 1210 .

[0099] The shaft portion 1210 is included on an inner shaft 1320, and the inner shaft 1320 is connected in a manner of exposing one end of the inner shaft 1320 to the outside by using a pole tube 1312, so that the shaft portion 1210 is exposed and configured at the end of the second handle portion 1300, and the other end of the inner shaft 1320 is connected to one end of the transducer 1330.

[0100] In addition, the other end of the inner shaft 1320 is connected to the transducer 1330 , and the inner shaft 1320 , the pole tube 1312 , the transducer 1330 , etc. are built into the 2-1 shell 1510 and the 2-2 shell 1520 of the second handle part 1300 .

[0101] Also, a jaw blade 1220 is formed at a distal end of the first handle portion 1100 .

[0102] The jaw blade 1220 rotates around the pivot and engages with the inner shaft 1320 .

[0103] In addition, ultrasound waves are transmitted to the tissue to be treated through the inner shaft 1320, and the jaw blades 1220 and the shaft 1210 can cut the tissue or blood vessel based on the vibration energy and heat energy generated by the ultrasound waves while compressing the cutting site.

[0104] The jaw blade 1220 may be composed of a support portion 1221 and a clamping pad 1230 .

[0105] Figure 4 is a diagram showing a clip pad according to an embodiment of the present invention.

[0106] Reference Figure 4 Parts (a) and (b) of FIG. 1 show the overall form of the jaw blade 1220 combined with the support portion 1221 and the clamping pad 1230 according to the present invention.

[0107] The clip 1230 according to the present invention may be formed of polytetrafluoroethylene (TEFLON) 1211 .

[0108] Furthermore, polytetrafluoroethylene 1211 may be disposed on the inner side of the clamping pad 1230 of the jaw blade 1220 facing the shaft portion 1210 .

[0109] Also, the bottom surface of the polytetrafluoroethylene 1211 coating may have a pattern shape to better grip the blood vessel.

[0110] Also, the upper surface of the support portion 1221 of the jaw blade 1220 is preferably formed in a curved shape.

[0111] As the upper surface of the support part 1221 is formed in a curved shape, when the energy device is inserted into the body, damage to tissues and blood vessels can be prevented.

[0112] Also, the end portion of the support portion 1221 may be formed in a streamline shape.

[0113] Furthermore, the end of the support portion 1221 is formed into a structure with three surfaces gathered in the center, which is designed to facilitate tissue dissection.

[0114] That is, the end of the forceps part 1200 is formed into a streamlined shape, so that it is possible to prevent the internal organs or blood vessels from being damaged when the instrument is inserted into the abdominal cavity.

[0115] Figure 5 1 is a diagram showing a state in which a support portion and a clamp pad are combined in a jaw portion according to an embodiment of the present invention.

[0116] The support portion 1221 a and the clamping pad 1230 a according to the present invention may be combined into a T-shaped structure.

[0117] Also, the clip 1230a is not composed of multiple pieces, but is implemented as one integral piece and inserted and fixed to the support portion 1221a in a T-shape.

[0118] On the other hand, the shaft portion 1210 is made of a metal material, and in particular, is preferably made of titanium.

[0119] Titanium is lightweight, strong, has good corrosion resistance, and transmits ultrasound waves efficiently.

[0120] The jaw blades 1220 are engaged with the shaft 1210 to clamp the tissue or blood vessel to be treated. At this time, the force of clamping the tissue or blood vessel is very important.

[0121] If the clamping force is too low, the vessel may not be cut cleanly and may be burned or coagulate unevenly.

[0122] Therefore, it is important to be able to firmly fix the tissue or blood vessel by rotating the jaw blade 1220 to engage with the shaft portion 1210 .

[0123] Figures 6a to 6d A specific example of a coupling structure between a shaft portion extending in the length direction and a jaw portion according to the present invention is shown.

[0124] In the present invention, the waveform of the transmitted ultrasonic wave can be changed according to the shape of the shaft portion 1210, and the tissue or blood vessel can be cut by the vibration energy and heat energy of each changed waveform according to the situation.

[0125] Already passed Figure 4 The shapes of the shaft portion 1210 and the jaw blade 1220 are exemplarily described, but in the present invention, the polytetrafluoroethylene 1211 applied to the polytetrafluoroethylene pad 1230 of the jaw blade 1220 will be implemented in a radial shape to maximize the effect.

[0126] Reference Figure 6a The technical feature of the present invention is that the shape of the polytetrafluoroethylene 1211 on the polytetrafluoroethylene pad 1230 applied to the clamp blade 1220 is radial.

[0127] Figure 6a The shaft portion 1210 and the jaw blade 1220 are shown in a closing state as viewed from above.

[0128] Reference Figure 6a Part (a) shows a jaw blade 1220P having a Teflon pad 1230 provided with a conventional straight-line serration-shaped Teflon 1211, and shows a jaw blade 1220N having an improved Teflon jaw serration shape.

[0129] Figure 6a Part (b) shows an example of a structure having a radial serration jaw blade 1220N.

[0130] Figure 6b Part (a) shows a structure incorporating a jaw blade 1220P having a polytetrafluoroethylene pad 1230 configured with a conventional linear serration-shaped polytetrafluoroethylene 1211, and relative to Figure 6b Part (a) of Figure 6b Part (b) shows a structure provided with a radial serration jaw blade 1220N.

[0131] Reference Figure 6c Part (a) shows the existing linear serration shape The jaw blade 1220P, refer to Figure 6c Part (b) shows the improved Teflon jaw serration shape The jaw blade is 1220N.

[0132] Compare Figure 6c Part (a) and Figure 6c Part (b) Figure 6c The length of part (b) is reduced, which is suitable for miniaturization, and as the pitch value decreases, the height value increases, so it can better achieve the purpose of cutting tissue or blood vessels based on the vibration energy and heat energy generated by ultrasound while squeezing the cutting part.

[0133] Furthermore, according to the present invention, the pole tube 1312 may be improved and applied in the shape of a jaw pipe divided into two sections.

[0134] Reference Figure 6d In part (a), the left side shows a one-piece pole tube 1312 used in previous designs, and the right side shows a two-piece pole tube 1312 proposed by the present invention.

[0135] Reference Figure 6d As shown on the right side of part (a), the pole tube 1312 is divided into a first region 2010 and a second region 2020 .

[0136] Reference Figure 6dIn part (b), the existing one-piece type pole tube 1312 has the problem of being difficult to pass through a narrow interval.

[0137] Specifically, there is a problem that a one-piece structure cannot be passed through due to its large curvature.

[0138] On the other hand, refer to Figure 6d The right figure of part (b) applies the proposed pole tube 1312 divided into two parts, wherein the clamp blade 1220P is assembled by first passing through the first area 2010 as a pipe (PIPE) interval and then the narrow second area 2020 as a separate piece structure, thereby solving the existing problem.

[0139] on the other hand, Figure 7a and Figure 7b 1 is a diagram showing a state in which the forceps part is driven in the energy device according to the embodiment of the present invention.

[0140] As described above, the user can use the second handle 1300 by hooking his fingers into the first space 1112 of the first handle 1100 and the second space 1300 a and 1300 b on the 2-1 shell 1510 and the 2-2 shell 1520 of the second handle 1300 .

[0141] Therefore, the user can control the opening and closing motion of the forceps part 1200 by hooking fingers into the first space part 1112 and the second space parts 1300a and 1300b to perform a motion similar to using scissors.

[0142] The user controls the operation of the forceps part 1200 by hooking fingers into the first space part 1112 and the second space parts 1300a and 1300b to pull or open.

[0143] like Figure 7a As shown, when the fingers are hooked into the first space portion 1112 and the second space portions 1300a, 1300b to perform a closing operation, the jaw blade 1220 is closed.

[0144] On the contrary, when the fingers are hooked into the first space 1112 and the second space 1300a, 1300b and opened, as shown in FIG. Figure 7b As shown, the jaw blades 1220 are open.

[0145] Handle part (first handle part, second handle part)

[0146] Figure 8 An example of a handle portion provided with an operating rod unit, a spring unit, a transducer, a housing, etc. in an energy device according to an embodiment of the present invention is shown.

[0147] However, when implementing the present invention, the technical contents described in the drawings without using the spring unit are also explicitly included in the contents of the present invention.

[0148] Reference Figure 8 The first handle portion 1100 may include a first space portion 1112 for a user to hook a finger and a first end portion 1111 including a jaw blade 1220 .

[0149] A pliers portion 1200 is provided at a distal end of the first handle portion 1100 and a distal end of the second handle portion 1300 .

[0150] The forceps portion 1200 includes a forceps blade 1220 and a shaft portion 1210, wherein the shaft portion 1210 is included on an inner shaft 1320, and the inner shaft 1320 is connected in a manner such that one end of the inner shaft 1320 is exposed to the outside by utilizing a pole tube 1312, so that the shaft portion 1210 is exposed and configured at the end of the second handle portion 1300, and the other end of the inner shaft 1320 is connected to one end of the transducer 1330.

[0151] The other end of the inner shaft 1320 is connected to the transducer 1330 , and the inner shaft 1320 , the pole tube 1312 , the transducer 1330 , etc. are built into the 2-1 housing 1510 and the 2-2 housing 1520 of the second handle portion 1300 .

[0152] In addition, the second handle portion 1300 may be provided with a lever unit 1310 and a second button 1311 .

[0153] The user may rotate the jaw blade 1220 by pulling the operating lever unit 1310 and the second button 1311 , thereby clamping a blood vessel and transmitting ultrasonic waves to a treatment site.

[0154] The lever unit 1310 and the second button 1311 may include a lever, a connecting member, a link, and the like.

[0155] The user can make a selection by pulling either one of the operating lever unit 1310 and the second button 1311 or by pulling both of the operating lever unit 1310 and the second button 1311, so that the jaw blade 1220 and the shaft 1210 can squeeze the cutting part or cut tissue or blood vessels based on the vibration energy and heat energy generated by ultrasound.

[0156] For example, the operating lever unit 1310 controls a seal and cut function, and the second button 1311 can control a seal function.

[0157] That is, a plurality of buttons with different functions may be provided in the present invention.

[0158] The user can perform output operations by pressing the operation lever unit 1310 and the seal button 1311 .

[0159] When the operating lever unit 1310 is pressed, a sealing function and a cutting function are provided simultaneously.

[0160] When the seal button 1320 is pressed, only the seal function may be provided.

[0161] Also, the transducer 1330 is a device that generates ultrasonic vibrations that act on a treatment site.

[0162] The transducer 1330 is formed in a cylindrical shape, and has an ultrasound radiating surface to focus ultrasound energy.

[0163] The ultrasonic waves generated in the transducer 1330 are transmitted to the treatment site through the shaft portion 1210 to cut tissue or blood vessels by heat.

[0164] Also, the second handle portion 1300 according to the present invention may include a power connector 1400 .

[0165] The power connector 1400 according to the present invention is a structure connected to a cable of a power supply unit (not shown). The second handle unit 1300 according to the present invention and the power connector 1400 may be formed integrally.

[0166] on the other hand, Fig. 9 Shows Figure 8 An example of the specific internal structure of the device described in .

[0167] Fig. 9 The functions of the handle portion provided with a transducer and a power connector, etc. are similar to those of Figure 8 Therefore, in order to simplify the description, the repeated description will be omitted.

[0168] Next, the specific structure and function of the transducer 1330 of the second handle portion 1300 will be described with reference to the accompanying drawings.

[0169] Transducer

[0170] Fig.10 and Fig.11 A specific example of a transducer according to the present invention is shown.

[0171] Reference Fig.10, the transducer 1330 according to the present invention is formed in a cylindrical shape and has an ultrasound radiating surface to focus ultrasound energy.

[0172] The ultrasonic waves generated in the transducer 1330 are transmitted to the treatment site through the shaft portion 1210 to cut tissue or blood vessels by heat.

[0173] Reference Fig.10 The transducer 1330 according to the present invention may include a piezoelectric body 1331 , a piezoelectric case 1332 , a piezoelectric element 1333 , a piezoelectric cover 1334 , a first rubber member 1335 and a second rubber member 1337 .

[0174] First, the piezoelectric element 1333 that provides the most important function in the transducer 1330 is an electrode, which is an element that uses the phenomenon that electric polarization occurs when mechanical strain is applied from the outside.

[0175] The piezoelectric element 1333 generates ultrasonic waves (vibrations) based on the piezoelectric phenomenon.

[0176] In addition, the piezoelectric body 1331 receives ultrasound (vibration) amplified by a horn from the piezoelectric element 1333 and moves back and forth to transmit the ultrasound (vibration) to the shaft 1210, and transmits it to the treatment site through the shaft 1210, thereby cutting tissue or blood vessels through thermal energy.

[0177] However, the piezoelectric element 1333 and the horn may not be separated but may be formed as an integrated structure.

[0178] In addition, the piezoelectric case 1332 refers to a case surrounding the piezoelectric element 1333 , and the piezoelectric cover 1334 refers to a cover additionally provided at the end on the power connector 1400 side.

[0179] On the other hand, due to interference events occurring in the injection molded part (for example, collision with the piezoelectric shell 1332, piezoelectric cover 1334, etc.) during the process of the piezoelectric element 1333 generating ultrasonic waves, amplifying the ultrasonic waves through the horn, and the piezoelectric body 1331 receiving ultrasonic waves (vibrations) and moving back and forth, losses and noise problems may occur.

[0180] Therefore, in the present invention, a plurality of rubber members are used to prevent loss and noise caused by such interference.

[0181] That is, in the present invention, the interference generated in the process of converting electricity into ultrasonic vibration energy through the plurality of ceramic piezoelectric elements is absorbed by the first rubber member 1335 and the second rubber member 1337 respectively, thereby achieving stable operation.

[0182] In the present specification, although the first rubber member 1335 and the second rubber member 1337 are described as separate structures, it is obvious that the first rubber member 1335 and the second rubber member 1337 may also be integrated as one structure and applied to the present invention.

[0183] Reference Fig.10 , the present invention uses a first rubber member 1335 and a second rubber member 1337 .

[0184] First, the first rubber member 1335 is disposed between the horn and the piezoelectric body 1331 .

[0185] Next, the second rubber member 1337 is disposed between the piezoelectric element 1333 and the piezoelectric cover 1334 .

[0186] Through Fig.10 As shown, by configuring the first rubber member 1335 and the second rubber member 1337, the problem of interference events occurring in the injection molded part during the process of the piezoelectric element 1333 generating ultrasonic waves, the process of amplifying ultrasonic waves through a horn, the process of the piezoelectric body 1331 receiving ultrasonic waves (vibrations) and moving back and forth, etc. can be solved.

[0187] Fig.11 The internal structure of the transducer 1330 described above includes Fig.10 For components that are the same as those described in , repeated descriptions will be omitted to simplify the description.

[0188] Propose a structure to prevent swaying

[0189] Figures 12a to 12d An example of a structure for preventing shaking by a jaw blade assembly structure and a body guide is shown.

[0190] Reference Fig.12a In part (a), when the jaw blade and the pole tube move, there is a problem of large left and right shaking even with a small movement gap because the degree of engagement of the slot portion 2030P is small.

[0191] Therefore, in the present invention, if Fig.12a As shown in part (b) of the drawing, a clamping flange 2030N is provided, which solves the shaking problem by modifying the design to increase the area where the jaw blade and the pipe tube are clamped when the scissors are closed.

[0192] Reference Fig.12aPart (b) shows the first area 2010 and the second area 2020 of the pole tube 1312, and shows the clamping flange 2030N, which is improved to increase the area where the jaw blade and the pipe tube are clamped when the scissors are closed.

[0193] Reference Figure 12b In the left figure of part (a), when the existing snap-in flange 2030P is applied, there is a problem of shaking due to the large rotation angle, but referring to Figure 12b In the right figure of part (a), when the snap-fit ​​flange 2030N is applied, the shaking problem can be solved because the rotation angle becomes smaller.

[0194] Specifically, refer to Figure 12b As shown in the right figure, the (b) portion increases the diagonal length L and the horizontal length I by realizing a snap-in flange in the form of a threshold, thereby increasing the area where the jaw blade (JAWBLADE) and the pipe (PIPE TUBE) are clamped when the scissors (Scissor) are in a closed state.

[0195] Compare Figure 12b From parts (a) and (b), it can be confirmed that the diagonal length L and the horizontal length I increase significantly.

[0196] Also, the snap-fit ​​flange 2030 is improved to provide a guiding function.

[0197] Reference Fig.12c When the jaws at the end of the scissors are partially engaged and when the shaft is engaged with the Teflon jaws, the snap-fit ​​flange 2030 may be in a guide shape to prevent skewing.

[0198] That is, Fig.12d As shown, the jaws are free to move when open, but are guided when the jaws are engaged so that the engagement alignment lines of the jaws can be aligned.

[0199] Fig.13 It is used to illustrate Figures 6a to 6d and Figures 12a to 12d A diagram of the structure described in .

[0200] Effect

[0201] The present invention can provide a scissor-type ultrasonic energy device that can firmly clamp a blood vessel and accurately cut the blood vessel.

[0202] Furthermore, the present invention can provide a scissor-type ultrasonic energy device that can predict the force acting on the target when the operating rod is pulled, thereby having a good sense of use.

[0203] Furthermore, the present invention can provide a scissor-type ultrasonic energy device that can neatly cut blood vessels or tissues.

[0204] Furthermore, the present invention can provide a scissor-type ultrasonic energy device that minimizes wounds when cutting blood vessels or tissues.

[0205] Furthermore, the present invention can provide a scissor-type ultrasonic energy device, which has more than one button, and can perform output operation by pressing the button, and has a seal & cut button and a seal button separately provided.

[0206] Furthermore, the present invention can provide a scissor-type ultrasonic energy device, which adjusts the pressure on the tissue according to the pressure intensity on the end effector by using a rubber block for double absorption in two stages (a spring is used in the first stage and a rubber block is used in the second stage).

[0207] Furthermore, the present invention can provide a scissor-type ultrasonic energy device, in which the interference generated in the process of converting electricity into ultrasonic vibration energy through multiple ceramic piezoelectric elements is absorbed by rubber parts respectively, so that stable operation can be achieved.

[0208] However, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood from the above description by those skilled in the art.

[0209] As described above, the preferred embodiments of the disclosed invention are described in detail so that those skilled in the art can implement and practice the invention. Although described above with reference to the preferred embodiments of the invention, it will be appreciated by those skilled in the art that various modifications and changes can be made to the invention without departing from the scope of the invention. For example, those skilled in the art can use it by combining the configurations described in the above embodiments with each other. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but to be given the maximum scope consistent with the principles and new features disclosed herein.

[0210] Without departing from the spirit and basic features of the present invention, the present invention may be implemented in other specific forms. Therefore, the above detailed description should not be interpreted as being restrictive in all aspects, but should be regarded as exemplary. The scope of the present invention should be determined by the reasonable interpretation of the attached claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein, but to be given the maximum scope consistent with the principles and new features disclosed herein. In addition, claims that do not have a clear reference relationship in the patent claims can be combined to form an embodiment, or modified to a new claim after the application.

Claims

1. A scissor-type ultrasonic energy device, wherein: The scissor-type ultrasonic energy device comprises: A first handle portion having a first space capable of accommodating a first finger of a user; and The second handle portion has a second space capable of accommodating a second finger of the user, A shaft portion for transmitting the generated ultrasonic wave is provided at the end of the second handle portion. A clamp is provided at the end of the first handle portion, and the clamp, together with the shaft portion, squeezes at least a portion of the body and cuts at least a portion of the body tissue or blood vessels based on the vibration energy and heat energy generated by the ultrasound. The first handle portion and the second handle portion are connected with a predetermined axis as a reference, and the first handle portion and the second handle portion are rotated and closed with the axis as a reference, so that the jaws are engaged with the axis, thereby performing the squeezing action and the cutting action, The second handle portion comprises: a transducer for generating the ultrasonic wave; and A power connector is connected to a cable of a power supply unit to provide power. The transducer comprises: A piezoelectric element, which generates the ultrasonic wave by using the piezoelectric phenomenon; A horn, amplifying the generated ultrasonic wave; a piezoelectric body that receives the ultrasonic wave amplified by the horn and moves back and forth to transmit the amplified ultrasonic wave to the shaft; and a piezoelectric housing surrounding the piezoelectric element, The clamp comprises: a support portion, an upper surface of which has a curved shape; and A clamping pad, inserted into and connected to the lower end of the support portion, Polytetrafluoroethylene is disposed on the inner side of the clamping pad facing the shaft portion, and the bottom surface of the polytetrafluoroethylene coating has a pattern shape to support the squeezing action. The pattern shape is realized in the form of radial sawtooth, The shaft portion is included on the inner shaft, The inner shaft passes through the pole tube and one end of the inner shaft is exposed to the outside, so that the shaft portion is exposed to the outside together with the inner shaft, The pole tube is formed by a two-section structure, and the two-section structure includes a first area that allows the one end of the inner shaft and the body to pass through and a second area that allows the one end to pass through. When the pliers are engaged with the shaft, the clamping flange disposed at the upper end of the pole tube receives at least a portion of the first handle portion. The movement of the first handle portion accommodated in the clamping flange is restricted, thereby reducing shaking.

2. The scissor-type ultrasonic energy device according to claim 1, wherein: At least a portion of the vibration energy and thermal energy applied to the cutting action can be varied according to the shape of the shaft portion, One side surface of the clamping flange is shaped to further limit the movement of the accommodated first handle portion, thereby reducing shaking.

3. The scissor-type ultrasonic energy device according to claim 2, wherein: The snap-fit ​​flange allows the first handle portion to be received only at a predetermined angle, thereby guiding the jaw portion to engage with the shaft portion at a predetermined angle.

4. The scissor-type ultrasonic energy device according to claim 3, wherein: The second handle portion further comprises: The first button and the second button are used to provide at least one of a sealing function and a cutting function.

5. The scissor-type ultrasonic energy device according to claim 4, wherein: The shaft portion is included on the inner shaft, The inner shaft is connected in a manner that one end of the inner shaft is exposed to the outside by using a pole tube so that the shaft portion is exposed and arranged at the end of the second handle portion. The other end of the inner shaft is connected to one end of the transducer.

6. The scissor-type ultrasonic energy device according to claim 5, wherein: The scissor-type ultrasonic energy device also includes: A plurality of rubber pieces are used to offset the interference generated in at least a part of the ultrasonic wave generation process, the ultrasonic wave amplification process and the ultrasonic wave transmission process.

7. The scissor-type ultrasonic energy device according to claim 6, wherein: The plurality of rubber parts include: A first rubber member is disposed between the amplitude transformer and the piezoelectric body; and The second rubber member is disposed between the piezoelectric element and the piezoelectric cover.

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