[go: up one dir, main page]

WO2019215852A1 - Outil de traitement - Google Patents

Outil de traitement Download PDF

Info

Publication number
WO2019215852A1
WO2019215852A1 PCT/JP2018/017981 JP2018017981W WO2019215852A1 WO 2019215852 A1 WO2019215852 A1 WO 2019215852A1 JP 2018017981 W JP2018017981 W JP 2018017981W WO 2019215852 A1 WO2019215852 A1 WO 2019215852A1
Authority
WO
WIPO (PCT)
Prior art keywords
divided
region
transfer plate
heat transfer
resistance pattern
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/017981
Other languages
English (en)
Japanese (ja)
Inventor
和哉 笹口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Corp filed Critical Olympus Corp
Priority to PCT/JP2018/017981 priority Critical patent/WO2019215852A1/fr
Publication of WO2019215852A1 publication Critical patent/WO2019215852A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes

Definitions

  • the present invention relates to a treatment instrument.
  • Patent Literature 1 a treatment tool that treats a target portion by applying energy to a portion to be treated in a living tissue (hereinafter referred to as a target portion) (see, for example, Patent Document 1).
  • the treatment tool described in Patent Literature 1 includes a pair of jaws that grip a target site.
  • One jaw is provided with the following heat transfer plate and heating element.
  • the heat transfer plate is made of a conductive material such as copper.
  • the heat transfer plate has a first surface that transfers heat to the target site in contact with the target site, and a second surface that forms a front and back surface with the first surface.
  • the heating element is disposed on the second surface and generates heat when energized. That is, the heat transfer plate transmits heat from the heating element to the target site.
  • the jaws and the heat transfer plate have a curved shape extending along a curve from the proximal end side to the distal end side in order to facilitate peeling of the living tissue.
  • the two first and second divided bodies obtained by dividing the heat transfer plate by the divided surfaces shown below have different heat capacities.
  • the dividing surface is perpendicular to the width direction and has the center when a curved axis extending in the longitudinal direction of the second surface passing through the center position in the width direction of the second surface of the heat transfer plate is the center axis.
  • the first divided body on the outer peripheral side with respect to the divided surface is more than the second divided body on the inner peripheral side with respect to the divided surface. Has a large volume. For this reason, the first divided body has a larger heat capacity than the second divided body.
  • the heat transfer plate is biased due to the difference in heat capacity between the first and second divided bodies described above. . That is, there is a problem that the heat distribution of the heat transfer plate cannot be made uniform.
  • the present invention has been made in view of the above, and an object of the present invention is to provide a treatment instrument that can equalize the heat distribution of a heat transfer plate.
  • the treatment tool according to the present invention includes a first surface that transfers heat to the living tissue in contact with the living tissue, and the first surface. And a heat transfer plate having a front and back second surface, and a resistance pattern disposed on the second surface and generating heat when energized, and the heat transfer by the first divided surface or the second divided surface.
  • the plurality of divided bodies include a first divided body and a second divided body having a lower heat capacity than the first divided body
  • the first central axis is an axis that passes through the center position in the longitudinal direction of the second surface and extends in the width direction of the second surface
  • the split surface is orthogonal to the longitudinal direction and the first surface
  • the second dividing surface passes through the center position in the width direction of the second surface, and passes through the central axis of the second surface.
  • the axis extending in the longitudinal direction is the second central axis, it is a plane that is orthogonal to the width direction and passes through the second central axis, and the resistance pattern includes the first divided body and the second central axis.
  • the resistance value in the first divided region constituted by the first divided body of the second surface and the second constituted by the second divided body in accordance with the ratio of the heat capacity to the divided body of The resistance value in the divided region is set, and the resistance value in the first divided region is higher than the resistance value in the second divided region.
  • the treatment tool according to the present invention can equalize the heat distribution of the heat transfer plate.
  • FIG. 1 is a diagram showing a treatment system according to the first embodiment.
  • FIG. 2 is a diagram illustrating the gripping portion.
  • FIG. 3 is a diagram illustrating a treatment unit.
  • FIG. 4 is a diagram illustrating a treatment unit according to the second embodiment.
  • FIG. 5 is a diagram illustrating a treatment unit according to the third embodiment.
  • FIG. 6 is a diagram illustrating a treatment unit according to the fourth embodiment.
  • FIG. 7 is a diagram illustrating a treatment unit according to the fifth embodiment.
  • FIG. 8 is a diagram illustrating a treatment unit according to the sixth embodiment.
  • FIG. 1 is a diagram showing a treatment system 1 according to the first embodiment.
  • the treatment system 1 treats the target portion by applying thermal energy to a portion to be treated in the living tissue (hereinafter referred to as a target portion).
  • the said treatment means joining and incision of an object part, for example.
  • the treatment system 1 includes a treatment tool 2, a control device 3, and a foot switch 4.
  • the treatment tool 2 is, for example, a surgical treatment tool for treating a target site while passing through the abdominal wall.
  • the treatment tool 2 includes a handle 5, a shaft 6, and a grip portion 7.
  • the handle 5 is a part that the surgeon holds by hand.
  • the handle 5 is provided with an operation knob 51 as shown in FIG.
  • the shaft 6 has a substantially cylindrical shape, and one end is connected to the handle 5 (FIG. 1).
  • a grip portion 7 is attached to the other end of the shaft 6.
  • An opening / closing mechanism (illustrated) is provided inside the shaft 6 for opening and closing the first and second gripping members 8 and 9 (FIG. 1) constituting the gripping portion 7 in accordance with the operation of the operation knob 51 by the operator. Abbreviation) is provided.
  • an electric cable C (FIG. 1) connected to the control device 3 is disposed inside the shaft 6 from one end side to the other end side via the handle 5.
  • FIG. 2 is a diagram illustrating the gripping unit 7.
  • the gripping part 7 is a part that treats the target part while holding the target part.
  • the grip portion 7 includes first and second grip members 8 and 9.
  • the first and second grasping members 8 and 9 are configured to be openable and closable in the direction of the arrow R1 (FIG. 2) according to the operation of the operation knob 51 by the operator.
  • the first gripping member 8 is disposed at a position facing the second gripping member 9. As shown in FIG. 2, the first gripping member 8 includes a jaw 10, a support member 11, and a treatment unit 12.
  • the jaw 10 is a portion in which a part of the shaft 6 extends to the distal end side, and is formed in a long shape extending in the longitudinal direction from the distal end of the grip portion 7 toward the proximal end.
  • the longitudinal direction of the grip portion 7 is not a direction along a straight line. Specifically, the longitudinal direction is such that the second gripping member 9 is located on the upper side with respect to the first gripping member 8 and is viewed from the proximal end side toward the distal end side.
  • the jaw 10 has a curved shape extending in the longitudinal direction (FIG. 2).
  • the “longitudinal direction” described below means the longitudinal direction of the grip portion 7.
  • the “width direction” described below means a direction that is parallel to the surface 101 and extends in a curved shape in a state orthogonal to the longitudinal direction.
  • the surface 101 on the second gripping member 9 side of the jaw 10 is such that the first and second gripping members 8, 9 are gripped by the first and second gripping members 8, 9. It is comprised by the flat surface orthogonal to the direction A1 (FIG. 2) which mutually opposes.
  • the jaw 10 supports the support member 11 and the treatment portion 12 by the surface 101. Examples of the material constituting the jaw 10 described above include metal materials such as stainless steel and titanium.
  • the support member 11 is a long flat plate extending in the longitudinal direction, and is fixed on the surface 101.
  • the support member 11 has substantially the same outer shape as the surface 101 when viewed along the direction A1.
  • the surface 111 (FIG. 2) on the second gripping member 9 side of the support member 11 is configured by a flat surface orthogonal to the direction A1.
  • the support member 11 supports the treatment portion 12 by the surface 111.
  • the material constituting the support member 11 described above include a material having a lower thermal conductivity than the heat transfer plate 13 and the jaw 10 constituting the treatment portion 12, for example, a resin material such as PEEK (polyether ether ketone). can do.
  • FIG. 3 is a diagram showing the treatment unit 12. Specifically, FIG. 3 is a perspective view of the treatment portion 12 as viewed from the second surface 132 side.
  • the treatment unit 12 generates heat energy under the control of the control device 3.
  • the treatment section 12 includes a heat transfer plate 13 and a heater 14.
  • the heat transfer plate 13 is a flat plate extending in the longitudinal direction.
  • the length dimension of the heat transfer plate 13 in the longitudinal direction is set smaller than the length dimension of the surface 111 in the longitudinal direction.
  • the width dimension of the heat transfer plate 13 is set smaller than the width dimension of the surface 111.
  • the treatment section 12 is fixed to the surface 111 in a posture in which the heater 14 is sandwiched between the heat transfer plate 13 and the support member 11.
  • the surface on the second gripping member 9 side is in contact with the target site while the target site is gripped by the first and second gripping members 8 and 9. That is, the said surface functions as the 1st surface 131 (FIG. 2) based on this invention which transfers the heat
  • “applying heat energy to the target part” means that heat from the heater 14 is transmitted to the target part.
  • the first surface 131 is configured by a flat surface orthogonal to the direction A1, as shown in FIG.
  • the second surface 132 (FIG. 3) that forms the front and back surfaces of the first surface 131 is also configured by a flat surface orthogonal to the direction A ⁇ b> 1.
  • the material constituting the heat transfer plate 13 described above include high thermal conductivity copper, silver, aluminum, molybdenum, tungsten, graphite, or a composite material thereof.
  • the axis extending in the longitudinal direction through the center position in the width direction of the second surface 132 corresponds to the second center axis Ax2 (FIG. 3) according to the present invention.
  • a plane orthogonal to the width direction and passing through the second central axis Ax2 corresponds to the second divided plane F2 (FIG. 3) according to the present invention.
  • the heat transfer plate 13 is virtually divided into first and second divided bodies B1 and B2 (FIG. 3) by the second dividing surface F2.
  • the first divided body B1 on the outer peripheral side with respect to the second divided surface F2 is formed with respect to the second divided surface F2.
  • the volume is larger than the second divided body B2 on the inner peripheral side. That is, the first divided body B1 has a larger heat capacity than the second divided body B2.
  • region comprised by 1st division body B1 among the 2nd surfaces 132 is corresponded to 1st division area Ar1 (FIG. 3) which concerns on this invention.
  • region comprised by 2nd division body B2 among the 2nd surfaces 132 is corresponded to 2nd division area Ar2 (FIG. 3) which concerns on this invention. That is, the second surface 132 is divided into two regions, the first and second divided regions Ar1 and Ar2.
  • the heater 14 is a seat heater that generates heat when energized.
  • the heater 14 includes a substrate 15 and an electric resistance pattern 16.
  • the substrate 15 is a flat plate made of an electrically insulating material such as polyimide and extending in the longitudinal direction.
  • the longitudinal dimension of the substrate 15 is set to be smaller than the longitudinal dimension of the second surface 132.
  • the width dimension of the substrate 15 is set to be smaller than the width dimension of the second surface 132.
  • the substrate 15 is fixed to the second surface 132 with the central axis extending in the longitudinal direction passing through the center position in the width direction and the second central axis Ax2 when viewed along the direction A1.
  • the electrical resistance pattern 16 is obtained by processing a platinum thin film, and includes a pair of lead wire connecting portions 161 and a resistance pattern 162 as shown in FIG.
  • the electrical resistance pattern 16 is formed by patterning a platinum thin film formed by vapor deposition or sputtering on the plate surface 150 (FIG. 3) on the side of the substrate 15 that is away from the second surface 132 by photolithography. Is done.
  • the material of the electrical resistance pattern 16 is not limited to a platinum thin film, and a conductive thin film material such as nickel or titanium may be employed.
  • the electrical resistance pattern 16 is not limited to a configuration in which a thin film is patterned on the plate surface 150, and a configuration in which a thick film paste material such as ruthenium oxide is formed on the plate surface 150 by a printing technique may be adopted. Absent.
  • the pair of lead wire connecting portions 161 is provided on the base end side in a state of being parallel to the width direction on the plate surface 150.
  • a pair of lead wire C1 (FIG. 3) which comprises the electric cable C is electrically connected to a pair of lead wire connection part 161, respectively.
  • the resistance pattern 162 extends on the plate surface 150 while meandering from the proximal end side to the distal end side in a wavy manner, and is folded at the distal end side to extend while meandering in a wavy shape toward the proximal end side. It has a letter shape. Further, both ends of the resistance pattern 162 are connected to a pair of lead wire connecting portions 161, respectively. A voltage is applied to the resistance pattern 162 through the pair of lead wires C1 and the pair of lead wire connecting portions 161 under the control of the control device 3. As a result, the resistance pattern 162 generates heat.
  • the total length, line width, and thickness of the resistance pattern 162 are set as shown below.
  • the line width and thickness are all uniform from one end connected to one lead wire connecting portion 161 to the other end connected to the other lead wire connecting portion 161.
  • the entire length of the first portion 1621 (FIG. 3) located in the first divided region Ar1 is located in the second divided region Ar2. It is set larger than the entire length of the second portion 1622 (FIG. 3). Then, by making the overall lengths of the first and second parts 1621 and 1622 different from each other, the ratio of the resistance value of the first part 1621 and the resistance value of the second part 1622 is the first divided body.
  • the ratio of the heat capacity of B1 and the heat capacity of the second divided body B2 is set to be approximately the same.
  • the ratio of the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2 is “3: 2”
  • the resistance value of the first portion 1621 and the resistance of the second portion 1622 The ratio to the value is also set to “3: 2”. That is, in the resistance pattern 162, the resistance value of the first part 1621 is higher than the resistance value of the second part 1622.
  • the second grip member 9 has a long shape extending in the longitudinal direction.
  • the second gripping member 9 is pivotally supported at the base end side so as to be rotatable with respect to the shaft 6 about the fulcrum P0 (FIG. 2), and opens and closes with respect to the first gripping member 8.
  • the first gripping member 8 (jaw 10) is fixed to the shaft 6 and the second gripping member 9 is pivotally supported by the shaft 6.
  • the present invention is not limited to this.
  • a configuration may be adopted in which both the first and second gripping members 8 and 9 are pivotally supported by the shaft 6 and the first and second gripping members 8 and 9 are opened and closed by rotating. Absent.
  • first gripping member 8 is pivotally supported by the shaft 6, the second gripping member 9 is fixed to the shaft 6, and the first gripping member 8 is rotated to rotate the second gripping member 9.
  • a configuration that opens and closes may be adopted.
  • the foot switch 4 is a part operated by a surgeon with a foot. And according to the said operation to the foot switch 4, ON / OFF of the electricity supply from the control apparatus 3 to the treatment tool 2 (heater 14) is switched. Note that the means for switching on and off is not limited to the foot switch 4, and a switch operated by hand or the like may be employed.
  • the control device 3 includes a CPU (Central Processing Unit) and the like, and comprehensively controls the operation of the treatment instrument 2 according to a predetermined control program.
  • CPU Central Processing Unit
  • the first divided body B1 in the heat transfer plate 13 has a larger heat capacity than the second divided body B2 in the heat transfer plate 13.
  • the resistance pattern 162 has a first portion 1621 located in the first divided region Ar1 constituting the first divided body B1 according to the ratio of the heat capacities of the first and second divided bodies B1 and B2.
  • the resistance value of the second part 1622 located in the second divided region Ar2 constituting the second divided body B2 is set, and the resistance value of the first part 1621 is the second value It is higher than the resistance value of the region 1622.
  • the heat generation amount of the resistance pattern 162 in the first divided body B1 having a large heat capacity is made larger than the heat generation amount of the resistance pattern 162 in the second divided body B2 having a small heat capacity. Therefore, the heat distribution of the heat transfer plate 13 can be made uniform. That is, the treatment performance of the target portion can be maintained at the desired treatment performance regardless of where the target portion is in contact with the first surface 131.
  • FIG. 4 is a diagram illustrating the treatment unit 12A according to the second embodiment. Specifically, FIG. 4 is a view of the treatment portion 12A as viewed from the second surface 132 side.
  • the shape of the resistance pattern 162 is changed with respect to the treatment section 12 (heater 14) described in the first embodiment.
  • the electrical resistance pattern 16A is used.
  • the total length, line width, and thickness of the resistance pattern 162A constituting the electrical resistance pattern 16A are set as follows.
  • the line width and thickness are connected from one end connected to one lead wire connecting portion 161 to the other lead wire connecting portion 161 in the same manner as the resistor pattern 162 described in the first embodiment. All are uniform up to the other end.
  • the pitch P1 (FIG. 4) corresponding to the wavy period of the first portion 1621 located in the first divided region Ar1 is the second
  • the pitch P2 is set smaller than the pitch P2 (FIG. 4) corresponding to the wavy period of the second portion 1622 located in the divided area Ar2.
  • the total length of the first part 1621 is set larger than the total length of the second part 1622.
  • part 1622 is mentioned above by making the pitch (full length) in the 1st, 2nd site
  • the ratio of the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2 is set to be approximately the same.
  • FIG. 5 is a diagram illustrating the treatment unit 12B according to the third embodiment. Specifically, FIG. 5 is a view of the treatment portion 12B as viewed from the second surface 132 side.
  • the shape of the resistance pattern 162 is changed with respect to the treatment section 12 (heater 14) described in the first embodiment.
  • the electrical resistance pattern 16B is adopted.
  • the total length, line width, and thickness of the resistance pattern 162B constituting the electrical resistance pattern 16B are set as shown below.
  • the thickness is from one end connected to one lead wire connecting portion 161 to the other end connected to the other lead wire connecting portion 161 in the same manner as the resistance pattern 162 described in the first embodiment. All are uniform.
  • the entire length of the first portion 1621 located in the first divided region Ar1 is the same as that of the resistance pattern 162 described in the first embodiment.
  • it is set to be larger than the entire length of the second portion 1622 located in the second divided region Ar2.
  • the line width W1 (FIG.
  • the ratio between the resistance value of the first part 1621 and the resistance value of the second part 1622 is as described above by making the total length and the line width in the first and second parts 1621 and 1622 different from each other.
  • the ratio of the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2 is set to be approximately the same.
  • the first and second portions 1621 and 1622 have the same overall length, and the first and second portions 1621 and 1622 have different line widths, thereby reducing the resistance of the first portion 1621.
  • the ratio between the value and the resistance value of the second portion 1622 may be set to be substantially the same as the ratio between the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2.
  • FIG. 6 is a diagram illustrating a treatment unit 12C according to the fourth embodiment. Specifically, FIG. 6 is an enlarged perspective view of a part of the treatment section 12C on the second surface 132 side.
  • the shape of the resistance pattern 162 is changed with respect to the treatment section 12 (heater 14) described in the first embodiment.
  • the electrical resistance pattern 16C is adopted.
  • the total length, line width, and thickness of the resistance pattern 162C constituting the electrical resistance pattern 16C are set as follows.
  • the line width is from one end connected to one lead wire connecting portion 161 to the other end connected to the other lead wire connecting portion 161, similarly to the resistance pattern 162 described in the first embodiment. All are uniform.
  • the total length of the first portion 1621 located in the first divided region Ar1 is the same as that of the resistance pattern 162 described in the first embodiment.
  • it is set to be larger than the entire length of the second portion 1622 located in the second divided region Ar2.
  • the thickness T1 (FIG.
  • the first portion 1621 is set smaller than the thickness T2 (FIG. 6) of the second portion 1622.
  • the ratio between the resistance value of the first part 1621 and the resistance value of the second part 1622 is as described above by making the total length and thickness in the first and second parts 1621 and 1622 different from each other.
  • the ratio of the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2 is set to be approximately the same.
  • the first and second portions 1621 and 1622 have the same overall length, and the first and second portions 1621 and 1622 have different thicknesses, thereby reducing the resistance of the first portion 1621.
  • the ratio between the value and the resistance value of the second portion 1622 may be set to be substantially the same as the ratio between the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2.
  • FIG. 7 is a diagram illustrating a treatment unit 12D according to the fifth embodiment. Specifically, FIG. 7 is a perspective view of the treatment portion 12D as viewed from the second surface 132 side.
  • the heat transfer plate 13 and the heater 14 are compared to the treatment section 12 described in the first embodiment.
  • the heat transfer plate 13D and the heater 14D having different shapes are employed.
  • the grip portion 7 extends linearly from the distal end toward the proximal end. That is, in the fifth embodiment, the “longitudinal direction” described below is a direction along a straight line unlike the first embodiment described above.
  • the heat transfer plate 13 ⁇ / b> D is a trapezoidal flat plate extending in the longitudinal direction. Specifically, the heat transfer plate 13D has a trapezoidal shape with a width dimension that decreases toward the tip. Note that the axis passing through the center position in the longitudinal direction of the second surface 132 and extending in the width direction corresponds to the first center axis Ax1 (FIG. 7) according to the present invention.
  • a plane orthogonal to the longitudinal direction and passing through the first central axis Ax1 corresponds to the first divided plane F1 (FIG. 7) according to the present invention.
  • the heat transfer plate 13D is virtually divided into first and second divided bodies B1 and B2 (FIG. 7) by the first dividing surface F1.
  • the first divided body B1 on the proximal end side with respect to the first divided surface F1 is formed on the first divided surface F1.
  • the volume is larger than that of the second divided body B2 on the tip side. That is, the first divided body B1 has a larger heat capacity than the second divided body B2.
  • region comprised by 1st division body B1 among the 2nd surfaces 132 is corresponded to 1st division area Ar1 (FIG. 7) which concerns on this invention.
  • region comprised by 2nd division body B2 among the 2nd surfaces 132 is corresponded to 2nd division area Ar2 (FIG. 7) which concerns on this invention. That is, the second surface 132 is divided into two regions, the first and second divided regions Ar1 and Ar2.
  • the substrate 15D is a trapezoidal flat plate extending in the longitudinal direction as shown in FIG.
  • the length dimension of the substrate 15 ⁇ / b> D in the longitudinal direction is set to be smaller than the length dimension of the second surface 132 in the longitudinal direction.
  • the width dimension of the substrate 15 ⁇ / b> D is set smaller than the width dimension of the second surface 132.
  • the substrate 15D has a central axis extending in the longitudinal direction passing through the center position in the width direction and having a central axis extending in the longitudinal direction passing through the center position in the width direction on the second surface 132. It is fixed to the second surface 132 in a matching state.
  • the pair of lead wire connecting portions 161 constituting the electric resistance pattern 16 ⁇ / b> D is provided at the corner portion on the base end side in a state of being parallel to the width direction on the plate surface 150.
  • the resistance pattern 162D constituting the electrical resistance pattern 16D has a shape that extends from the pair of lead wire connection portions 161 while meandering in a wavy manner and is connected to each other on the tip side.
  • the total length, line width, and thickness of the resistance pattern 162D are set as follows. In the resistance pattern 162D, the line width and thickness are all uniform from one end connected to one lead wire connecting portion 161 to the other end connected to the other lead wire connecting portion 161.
  • the entire length of the first portion 1621 (FIG. 7) located in the first divided region Ar1 is located in the second divided region Ar2. It is set to be larger than the entire length of the second portion 1622 (FIG. 7).
  • the ratio between the resistance value of the first part 1621 and the resistance value of the second part 1622 can be determined by making the overall lengths of the first and second parts 1621 and 1622 different from each other. Similarly to 1, the ratio of the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2 is set to be substantially the same.
  • the treatment section 12D according to the fifth embodiment described above is employed, the same effects as those of the first embodiment described above can be obtained.
  • the first and second portions 1621 and 1622 similarly to the second to fourth embodiments described above, the first and second portions 1621 and 1622 have different overall lengths, line widths, or thicknesses, so that the first The ratio of the resistance value of the first part 1621 and the resistance value of the second part 1622 may be set to be substantially the same as the ratio of the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2. Absent.
  • FIG. 8 is a diagram showing the treatment unit 12E according to the sixth embodiment. Specifically, FIG. 8 is a perspective view of the treatment portion 12E viewed from the second surface 132 side and from the proximal end side.
  • the heat transfer plate 13 and the heater 14 compared to the treatment section 12 described in the first embodiment, the heat transfer plate 13 and the heater 14 (the substrate 15 and the electric resistance pattern 16).
  • the heat transfer plate 13E and the heater 14E (the substrate 15E and the electric resistance pattern 16E) having different shapes are employed.
  • the gripping portion 7 extends linearly from the distal end toward the proximal end. That is, in the sixth embodiment, the “longitudinal direction” described below is a direction along a straight line unlike the first embodiment described above. As shown in FIG. 7, the heat transfer plate 13 ⁇ / b> E extends in the longitudinal direction. Further, unlike the first embodiment described above, the first surface 131 has a convex shape. The heat transfer plate 13E has a triangular prism shape.
  • shaft which passes along the center position of the width direction of the 2nd surface 132, and extends to a longitudinal direction is corresponded to 2nd center axis Ax2 (FIG. 8) which concerns on this invention.
  • a plane orthogonal to the width direction and passing through the second central axis Ax2 corresponds to the second divided plane F2 (FIG. 7) according to the present invention.
  • the position of the convex vertex on the first surface 131 is located on the right side in FIG. 8 with respect to the second divided surface F2. For this reason, when the heat transfer plate 13E is virtually divided into the first and second divided bodies B1 and B2 (FIG.
  • the first surface 131 including the convex vertex is included.
  • One divided body B1 has a larger volume than the second divided body B2. That is, the first divided body B1 has a larger heat capacity than the second divided body B2.
  • region comprised by 1st division body B1 among the 2nd surfaces 132 is corresponded to 1st division area Ar1 (FIG. 8) which concerns on this invention.
  • region comprised by 2nd division body B2 among the 2nd surfaces 132 is corresponded to 2nd division area Ar2 (FIG. 8) which concerns on this invention. That is, the second surface 132 is divided into two regions, the first and second divided regions Ar1 and Ar2.
  • the substrate 15E is a rectangular flat plate extending in the longitudinal direction, as shown in FIG.
  • the longitudinal dimension of the substrate 15E is set smaller than the longitudinal dimension of the second surface 132.
  • the width dimension of the substrate 15E is set smaller than the width dimension of the second surface 132.
  • the substrate 15E is fixed to the second surface 132 in a state where the central axis extending in the longitudinal direction through the central position in the width direction matches the second central axis Ax2. .
  • the pair of lead wire connecting portions 161 constituting the electric resistance pattern 16 ⁇ / b> E is provided on the base end side in a state of being parallel to the width direction on the plate surface 150.
  • the resistance pattern 162E that constitutes the electrical resistance pattern 16E has a U-shape extending in a meandering manner on the plate surface 150, similarly to the resistance pattern 162 described in the first embodiment. Then, both ends of the resistance pattern 162E are connected to the pair of lead wire connecting portions 161, respectively.
  • the total length, line width, and thickness of the resistance pattern 162E are set as follows.
  • the line width and thickness are connected from one end connected to one lead wire connecting portion 161 to the other lead wire connecting portion 161 in the same manner as the resistance pattern 162 described in the first embodiment. All are uniform up to the other end.
  • the pitch P1 (FIG. 8) corresponding to the wavy period of the first portion 1621 located in the first divided region Ar1 is the second
  • the pitch P2 is set to be smaller than the pitch P2 (FIG. 8) corresponding to the wavy period of the second portion 1622 located in the divided area Ar2. That is, the total length of the first part 1621 is set larger than the total length of the second part 1622.
  • part 1622 is mentioned above by making the pitch (full length) in the 1st, 2nd site
  • the ratio of the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2 is set to be approximately the same.
  • the treatment unit 12E according to the sixth embodiment described above is employed, the same effects as those of the first embodiment described above can be obtained.
  • the first portion is changed by making the line widths or thicknesses of the first and second portions 1621 and 1622 different from each other.
  • the ratio of the resistance value of 1621 and the resistance value of the second portion 1622 may be set to be substantially the same as the ratio of the heat capacity of the first divided body B1 and the heat capacity of the second divided body B2.
  • the present invention should not be limited only by the above-described first to sixth embodiments.
  • the heat transfer plate 13 13D, 13E
  • a highly thermally conductive ceramic material such as aluminum nitride or alumina having electrical insulation properties and heat resistance is adopted.
  • the substrate 15 (15D, 15E) is brought into direct contact with the target site, and thermal energy is applied from the substrate 15 (15D, 15E) to the target site. That is, the said board
  • the heat transfer plate 13 (13D, 13E) is virtually divided by one of the first and second divided surfaces F1, F2, and the first and second divided bodies B1, Although the resistance values in the first and second divided regions Ar1 and Ar2 are set based on the magnitude relationship of the heat capacity of B2, the heat transfer plate 13 (13D and 13E is formed by both the first and second divided surfaces F1 and F2. ) Can be easily conceived by those skilled in the art. Even in this case, if there is a difference in the heat capacity of the divided bodies when virtually divided by one of the first and second divided surfaces F1 and F2 and compared in resistance value, the scope of rights of the present application is assumed. be able to.
  • the four divided bodies when virtually divided by the first and second divided surfaces F1 and F2 have different heat capacities.
  • a divided body having a large heat capacity and a divided body having a small heat capacity can be achieved by setting the resistance value in the same manner as in the first embodiment described above.
  • the treatment section 12 (12A to 12E) is provided only on the first gripping member 8, but this is not restrictive. Treatment sections 12 (12A to 12E) may be provided on both the first and second gripping members 8 and 9.
  • the first surface 131 is a flat surface.
  • the first surface 131 is not limited to this, and may be a convex shape or another shape such as a concave shape. The same applies to the second gripping member 9 side.
  • the configuration for applying thermal energy to the target portion is employed.
  • the configuration is not limited to this, and a configuration for applying high-frequency energy or ultrasonic energy in addition to thermal energy is employed. It doesn't matter. Note that “applying high-frequency energy to the target part” means flowing a high-frequency current to the target part. Further, “applying ultrasonic energy to the target part” means applying ultrasonic vibration to the target part.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Otolaryngology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un outil de traitement comprenant une plaque de transfert de chaleur 13 et un tracé de résistance 162 disposé sur une seconde face 132 de la plaque de transfert de chaleur 13 et générant de la chaleur lorsqu'il est excité. Lorsque la plaque de transfert de chaleur 13 est divisée en une pluralité de corps de partition par un second plan de partition F2, la pluralité de corps de partition comprend un premier corps de partition B1 et un second corps de partition B2 ayant une capacité thermique inférieure à celle du premier corps de partition B1. Lorsqu'un second axe central Ax2 est l'axe passant par la position centrale de la seconde face 132 dans la direction de la largeur et s'étendant dans la direction de la longueur, le second plan de partition F2 est le plan passant par le second axe central Ax2 tout en étant orthogonal à la direction de la largeur. Le tracé de résistance 162 est configuré de telle sorte qu'un rapport est établi entre la valeur de résistance dans une première région de partition Ar1 sur la seconde face 132 constituée par le premier corps de partition B1 et la valeur de résistance dans une seconde région de partition Ar2 sur la seconde face 132 constituée par le second corps de partition B2 selon le rapport de capacité thermique entre les premier et second corps de partition B1, B2, et la valeur de résistance dans la première région de partition Ar1 est supérieure à la valeur de résistance dans la seconde région de partition Ar2.
PCT/JP2018/017981 2018-05-09 2018-05-09 Outil de traitement Ceased WO2019215852A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/017981 WO2019215852A1 (fr) 2018-05-09 2018-05-09 Outil de traitement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/017981 WO2019215852A1 (fr) 2018-05-09 2018-05-09 Outil de traitement

Publications (1)

Publication Number Publication Date
WO2019215852A1 true WO2019215852A1 (fr) 2019-11-14

Family

ID=68467333

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/017981 Ceased WO2019215852A1 (fr) 2018-05-09 2018-05-09 Outil de traitement

Country Status (1)

Country Link
WO (1) WO2019215852A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012125338A (ja) * 2010-12-14 2012-07-05 Olympus Corp 治療用処置装置及びその制御方法
JP2013034614A (ja) * 2011-08-05 2013-02-21 Olympus Medical Systems Corp 治療用処置装置
WO2015093409A1 (fr) * 2013-12-20 2015-06-25 オリンパス株式会社 Dispositif d'incision par thermocoagulation
JP2015208415A (ja) * 2014-04-24 2015-11-24 オリンパス株式会社 治療用処置装置
WO2017183199A1 (fr) * 2016-04-22 2017-10-26 オリンパス株式会社 Dispositif de traitement à énergie thermique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012125338A (ja) * 2010-12-14 2012-07-05 Olympus Corp 治療用処置装置及びその制御方法
JP2013034614A (ja) * 2011-08-05 2013-02-21 Olympus Medical Systems Corp 治療用処置装置
WO2015093409A1 (fr) * 2013-12-20 2015-06-25 オリンパス株式会社 Dispositif d'incision par thermocoagulation
JP2015208415A (ja) * 2014-04-24 2015-11-24 オリンパス株式会社 治療用処置装置
WO2017183199A1 (fr) * 2016-04-22 2017-10-26 オリンパス株式会社 Dispositif de traitement à énergie thermique

Similar Documents

Publication Publication Date Title
CN109788978B (zh) 处置器具
US7397016B2 (en) Heat generating element, medical therapeutic instrument implementing the same, and treatment apparatus
JP6487723B2 (ja) 医療用処置装置
CN109475380B (zh) 处置器具
WO2019215852A1 (fr) Outil de traitement
WO2018055778A1 (fr) Instrument de traitement
JP2015208415A (ja) 治療用処置装置
JP7044895B2 (ja) 医療用ヒータ、処置具、及び処置具の製造方法
WO2017221331A1 (fr) Outil de traitement
WO2016189713A1 (fr) Structure conférant une énergie pour soins médicaux, et dispositif de traitement pour soins médicaux
WO2019186656A1 (fr) Instrument de traitement
WO2020044563A1 (fr) Dispositif de chauffage médical, instrument de traitement et procédé de production d'instrument de traitement
WO2019207807A1 (fr) Outil de traitement et procédé de fabrication d'un outil de traitement
WO2019202717A1 (fr) Instrument de traitement
WO2017163410A1 (fr) Outil de traitement d'énergie
US20180055555A1 (en) Therapeutic energy applying structure and medical treatment device
WO2020183681A1 (fr) Dispositif de chauffage médical et instrument de traitement
WO2018146729A1 (fr) Structure d'application d'énergie et outil de traitement
JP7201790B2 (ja) 処置具
WO2020183673A1 (fr) Instrument de traitement et procédé de fabrication d'un instrument de traitement
WO2018092278A1 (fr) Outil de traitement par énergie
WO2018220736A1 (fr) Instrument de traitement
WO2020012623A1 (fr) Outil de traitement
WO2018179303A1 (fr) Structure de chauffage et outil de traitement
WO2019215908A1 (fr) Procédé de fabrication de dispositif de chauffage médical, dispositif de chauffage médical, outil de traitement et système de traitement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18918243

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18918243

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP