JP2016027843A - Medical treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical treatment apparatus capable of causing thermal energy to act evenly upon a biological tissue or a measure object.SOLUTION: A medical treatment apparatus comprises: a heat evolution chip 83 for evolving heat when energized; and a heat transfer plate 84 for contacting with a biological tissue to transfer the heat from the heat evolution chip 83 to the biological tissue. The heat transfer plate 84 has such a thermal conduction anisotropy function that the thermal conductivities of two directions of an X-direction, a Y-direction and a Z-direction orthogonal to one another are higher than the thermal conductivity of another direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a medical treatment apparatus.

2. Description of the Related Art Conventionally, a therapeutic treatment apparatus that treats living tissue using thermal energy is known (see, for example, Patent Document 1).
The therapeutic treatment apparatus described in Patent Literature 1 includes a pair of holding members that clamp a living tissue. Each of the holding members includes a plurality of heat generating chips and a high-frequency electrode that has a treatment plane that comes into contact with the living tissue and transmits heat from the heat generating chips to the living tissue. In the treatment apparatus, the living tissue is energized and solidified through the high-frequency electrodes by energizing each heat generating chip while the living tissue is sandwiched between the pair of holding members.

JP2013-106909A

In the therapeutic (medical) treatment apparatus described in Patent Document 1, the high-frequency electrode has a function as a heat transfer unit that transmits heat from a plurality of heat generating chips to a living tissue. For this reason, as a high frequency electrode, it is common to comprise with metals, such as copper with high heat conductivity.
Usually, a metal material such as copper shows the same thermal conductivity in the same direction. Then, in the high-frequency electrode made of such a material, a case is assumed in which a plurality of heating chips are discretely bonded to the back surface of the treatment plane of the high-frequency electrode, as in Patent Document 1.
In this case, when each of the heat generating chips is energized, a region where each heat generating chip is bonded (hereinafter referred to as a bonded region) and a region where each heat generating chip is not bonded (hereinafter referred to as a non-bonded region) on the back surface. Temperature difference). And since the high frequency electrode is comprised with the material mentioned above, the heat | fever of the said back surface is transmitted to a thickness direction before interpolating the temperature of a non-joining area | region inside the said high frequency electrode, and reaches a treatment plane. It will be. For this reason, in the treatment plane, similarly to the back surface, a temperature difference is generated between the region facing the bonding region and the region facing the non-bonding region, and as a result, the heat energy is uniformly applied to the living tissue. The problem of not being able to occur.

Moreover, in the therapeutic treatment apparatus described in Patent Document 1, a high-frequency electrode made of the material as described above is adopted, and an electric resistance pattern that generates heat by energization is provided on one surface instead of a plurality of heating chips. The case where the formed heat generating sheet is employed (the case where the high-frequency electrode transmits heat from the heat generating sheet to the living tissue) is assumed.
Even in this case, since the electric resistance pattern cannot be uniformly formed over the entire heat generating sheet (the entire back surface of the treatment plane), when the electric resistance pattern is energized, uneven temperature occurs in the heat generating sheet itself. As a result, the same problem as described above will occur.

  This invention is made | formed in view of the above, Comprising: It aims at providing the medical treatment apparatus which can make a heat energy act uniformly with respect to the biological tissue which is a treatment object.

  In order to solve the above-described problems and achieve the object, a medical treatment apparatus according to the present invention includes a heat generating part that generates heat when energized, and transmits heat from the heat generating part to the living tissue in contact with the living tissue. A heat transfer part, and the heat transfer part has a heat conductivity in two directions of the X direction, the Y direction, and the Z direction orthogonal to each other than the heat conductivity in the other direction. Is also characterized by having a high thermal conductivity anisotropy function.

  According to the medical treatment apparatus according to the present invention, it is possible to uniformly apply thermal energy to a living tissue that is a treatment target.

FIG. 1 is a diagram schematically showing a medical treatment system according to Embodiment 1 of the present invention. FIG. 2 is an enlarged view of the distal end portion of the medical treatment apparatus shown in FIG. 3 is an overall perspective view of the first holding member main body shown in FIG. FIG. 4A is a diagram illustrating a configuration of the heat generating chip illustrated in FIG. 3. 4B is a cross-sectional view taken along line AA shown in FIG. 4A. FIG. 5 is a diagram for explaining the effect of the first embodiment of the present invention. FIG. 6A is an overall perspective view of a first holding member body according to Embodiment 2 of the present invention. 6B is an exploded perspective view of the first holding member main body shown in FIG. 6A. FIG. 7 is a diagram for explaining the effect of the second embodiment of the present invention. FIG. 8A is an overall perspective view of a first holding member body according to Embodiment 3 of the present invention. 8B is an exploded perspective view of the first holding member body shown in FIG. 8A. FIG. 9A is an overall perspective view of a first holding member main body according to a modification of Embodiment 3 of the present invention. 9B is an exploded perspective view of the first holding member body shown in FIG. 9A. FIG. 10 is an overall perspective view of the first holding member body according to Embodiment 4 of the present invention. FIG. 11 is a diagram for explaining the effect of the fourth embodiment of the present invention. FIG. 12A is an overall perspective view of a first holding member body according to a modified example of Embodiment 4 of the present invention. 12B is an exploded perspective view of the first holding member main body shown in FIG. 12A. FIG. 13A is an overall perspective view of a first holding member body according to Embodiment 5 of the present invention. 13B is an exploded perspective view of the first holding member main body shown in FIG. 13A. FIG. 14 is a diagram for explaining the effect of the fifth embodiment of the present invention. FIG. 15A is an overall perspective view of a first holding member main body according to a modification of Embodiment 5 of the present invention. FIG. 15B is an exploded perspective view of the first holding member main body shown in FIG. 15A. FIG. 16 is a diagram showing a modification of the first to fifth embodiments of the present invention. FIG. 17 is a diagram showing a modification of the first to fifth embodiments of the present invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, modes for carrying out the present invention (hereinafter, embodiments) will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Furthermore, the same code | symbol is attached | subjected to the same part in description of drawing.

(Embodiment 1)
[Schematic configuration of medical treatment system]
FIG. 1 is a diagram schematically showing a medical treatment system 1 according to Embodiment 1 of the present invention.
The medical treatment system 1 is a system in which heat energy is applied to a living tissue that is a treatment target and heating control is performed so that the living tissue reaches a target temperature. As shown in FIG. 1, the medical treatment system 1 includes a medical treatment device 2, a control device 3, and a foot switch 4.

[Configuration of medical treatment device]
The medical treatment apparatus 2 is, for example, a linear type surgical treatment tool for performing treatment on a living tissue through an abdominal wall. As shown in FIG. 1, the medical treatment device 2 includes a handle 5, a shaft 6, and a treatment unit 7.
The handle 5 is a portion that the operator holds. The handle 5 is provided with a plurality of operation knobs 51 as shown in FIG.
As shown in FIG. 1, the shaft 6 has a substantially cylindrical shape, and one end is connected to the handle 5. A treatment portion 7 is attached to the other end of the shaft 6. An opening / closing mechanism that opens and closes the first and second holding members 8, 8 ′ (FIG. 1) constituting the treatment section 7 according to the operation of the plurality of operation knobs 51 by the operator is provided inside the shaft 6. (Not shown) and a moving mechanism (not shown) for moving the cutter 9 (see FIG. 2) constituting the treatment section 7 are provided. In addition, 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.

[Configuration of treatment section]
FIG. 2 is an enlarged view of the distal end portion of the medical treatment apparatus 2.
The treatment unit 7 is a part that sandwiches a living tissue and performs a treatment such as coagulation and cutting of the living tissue. As shown in FIG. 2, the treatment section 7 includes first and second holding members 8 and 8 ′ and a cutter 9.
In FIG. 2, as the reference numeral indicating the configuration of the second holding member 8 ′, for the same configuration as the first holding member 8, “′” is added to the reference numeral indicating the configuration of the first holding member 8. It is said.
The first and second holding members 8 and 8 'are pivotally supported on the other end of the shaft 6 so as to be opened and closed in the direction of the arrow R1 (FIG. 2), and pinch the living tissue according to the operation of the operation knob 51 by the operator. Make it possible.
The detailed configuration of the first and second holding members 8 and 8 ′ will be described later.
The cutter 9 is attached to the other end of the shaft 6 so as to be movable along the direction of the arrow R2 (FIG. 2), and moves according to the operation of the operation knob 51 by the operator. And the cutter 9 cut | disconnects the biological tissue clamped by the 1st, 2nd holding member 8 and 8 'by the said movement.

[Configuration of the first holding member]
The first holding member 8 is disposed on the lower side in FIG. 1 or 2 with respect to the second holding member 8 ′. As shown in FIG. 2, the first holding member 8 includes a first support frame 81 and a first holding member main body 82.
As shown in FIG. 2, the first support frame 81 has a container shape whose upper side is open. Further, one of the four side walls of the first support frame 81 has a notch 811 for securing a moving path of the cutter 9 and an opening (not shown) through which the electric cable C is inserted. Is formed.

FIG. 3 is an overall perspective view of the first holding member main body 82. Specifically, FIG. 3 is a view of the first holding member main body 82 viewed from the lower side in FIG. 1 or FIG.
As shown in FIG. 2 or FIG. 3, the first holding member main body 82 is formed in an overall substantially U shape having two arm portions 821 and 822 extending in parallel in order to secure a moving path of the cutter 9. ing. Then, as shown in FIG. 2, the first holding member main body 82 is housed inside the first support frame 81 so that the notch portion 811 is positioned between the tips of the two arm portions 821 and 822. As shown in FIG. 3, the first holding member main body 82 includes a plurality (seven in the first embodiment) of heat generating chips 83 and a heat transfer plate 84.

In the configuration of the first embodiment, for example, seven heat generating chips 83 are provided (the number is not limited if the required performance can be obtained), and the heat generating chips 83 are used as the heat generating unit according to the present invention. It has the function of. The seven heat generating chips 83 have the same configuration. Therefore, only the configuration of one heat generating chip 83 will be described below.
FIG. 4A is a diagram illustrating a configuration of the heat generating chip 83. Specifically, FIG. 4A is a plan view of the heat generating chip 83 as viewed from the upper side (−Z direction) in FIG. 3. 4B is a cross-sectional view taken along line AA shown in FIG. 4A.
As shown in FIG. 4A or 4B, the heat generating chip 83 has an electric resistance pattern 832 and a pair of electrodes 833 on the surface (surface in the −Z direction in FIG. 3) of a substrate 831 made of a material such as alumina. Are formed by vapor deposition or the like.
The electric resistance pattern 832 is made of a material such as stainless steel or platinum, and has a shape that meanders from one end to the other end.
The pair of electrodes 833 are formed so as to be electrically connected to one end and the other end of the electric resistance pattern 832 and to face each other. These electrodes 833 are, for example, a multilayer film made of Ti, Cu, Ni, and Au.
4A or 4B, the surface of the substrate 831 is made of a material such as polyimide so as to cover the surface (including the electric resistance pattern 832) except for the formation position of the pair of electrodes 833. An insulating layer 834 is formed.

Furthermore, as shown in FIG. 4B, a metal layer 835 is formed on the back surface of the substrate 831 (the surface in the + Z direction in FIG. 3). The metal layer 835 is, for example, a multilayer film made of Ti, Cu, Ni, and Au, like the pair of electrodes 833.
As shown in FIG. 3, the heat generating chip 83 solders the one surface 841 and the metal layer 835 to one surface 841 (the surface in the −Z direction in FIG. 3) of the heat transfer plate 84. It is joined by attaching. That is, the metal layer 835 is provided to thermally connect the heat generating chip 83 and the heat transfer plate 84 and to stabilize the bonding of the heat generating chip 83 to the heat transfer plate 84 by soldering.

In the first embodiment, as shown in FIG. 3, the three heat transfer plates 84 are respectively attached to the two arm portions 821 and 822 by the above-described soldering to one surface 841 of the heat transfer plate 84. A total of seven heat generating chips 83 are joined to the U-shaped bent portion. Here, each heat generating chip 83 is joined so that each pair of electrodes 833 are arranged in series along the U-shape of the heat transfer plate 84.
In the adjacent heat generating chips 83, the adjacent electrodes 833 are connected by, for example, a wire 836 (FIG. 3) formed by wire bonding. Further, in each heat generating chip 83 joined to each distal end side of the two arm portions 821 and 822, each electrode 833 positioned on each distal end side has a lead constituting the electric cable C as shown in FIG. Lines C1 and C2 are joined to each other.
With the above configuration, each heat generating chip 83 (each electric resistance pattern 832) generates heat when a voltage is applied (energized) between each pair of electrodes 833 by the control device 3 via the lead wires C1 and C2. .

The heat transfer plate 84 has a function as a heat transfer unit according to the present invention. The heat transfer plate 84 is in a state where the first holding member main body 82 is accommodated in the first support frame 81, and the other surface 842 (the surface on the lower side (+ Z direction in FIG. 3), hereinafter, the treatment plane 842. Is exposed to the outside. The heat transfer plate 84 is in a state where the living tissue is sandwiched between the first and second holding members 8 and 8 ′, the treatment plane 842 comes into contact with the living tissue, and heat from each heat generating chip 83 is transferred to the living body. Communicate to the organization.
The heat transfer plate 84 described above is made of, for example, a composite material of graphite and metal (for example, a comporoid (manufactured by Thermographics Co., Ltd.)) and has a heat conduction anisotropic function described below.
Here, as shown in FIG. 3, in the treatment plane 842 having a generally long shape, the direction in which the two arm portions 821 and 822 face each other (the short direction of the treatment plane 842 having a generally long shape) is defined as X. The direction perpendicular to the X direction (the longitudinal direction of the treatment plane 842 having a generally long shape (the direction in which the two arm portions 821 and 822 extend)) is defined as the Y direction. In addition, the normal direction (the thickness direction of the heat transfer plate 84) of the treatment plane 842 that is orthogonal to the X and Y directions and is generally long is defined as the Z direction.
Specifically, the heat transfer plate 84 has a thermal conductivity anisotropic function in which the thermal conductivity in the X and Y directions (plane direction) is higher than the thermal conductivity in the Z direction (thickness direction). For example, when the heat transfer plate 84 is made of a comporoid, the thermal conductivity in the X and Y directions is about 1700 (W / m · K), and the thermal conductivity in the Z direction is about 7 (W / m・ K).

[Configuration of Second Holding Member]
As shown in FIG. 2, the second holding member 8 ′ has the same configuration as the first holding member 8. That is, the second holding member 8 ′ includes a second support frame 81 ′ (including a cutout portion 811 ′), a second holding member main body 82 ′ (seven heat generating chips (not shown), and a heat transfer plate 84 ′ ( Treatment plane 842 ′), and two arm portions 821 ′ and 822 ′).
Then, as shown in FIG. 2, the second support frame 81 ′ is attached to the other end of the shaft 6 in a posture in which the first support frame 81 is turned upside down (a posture in which the opening portion faces downward).
Further, the second holding member main body 82 ′ is housed inside the second support frame 81 ′ with the first holding member main body 82 turned upside down. That is, in the second holding member main body 82 ′, when the living tissue is sandwiched between the first and second holding member main bodies 82 and 82 ′, the treatment plane 842 ′ comes into contact with the living tissue.

[Configuration of control device and foot switch]
The foot switch 4 is a part operated by the operator with his / her foot. Then, according to the operation on the foot switch 4, the energization from the control device 3 to the medical treatment device 2 (the heat generating chips 83 of the first and second holding members 8 and 8 ′) is switched on and off. .
Note that the means for switching on and off is not limited to the foot switch 4, and other switches that are operated by hand may be employed.

  The control device 3 includes a CPU (Central Processing Unit) and the like, and comprehensively controls the operation of the medical treatment device 2 according to a predetermined control program. More specifically, the control device 3 determines each heating chip 83 (electricity) constituting the first holding member main body 82 via the electric cable C in response to an operation to the foot switch 4 (operation to turn on the power) by the operator. A voltage is applied to the resistance pattern 832) to heat each of the heat generating chips 83, and the resistance value of the electrical resistance pattern 832 is acquired. Then, the control device 3 converts the acquired resistance value into a temperature (the temperature of the heat transfer plate 84), and grasps the converted temperature so that the heat transfer plate 84 reaches the target temperature. The heating control of 83 is performed. The control device 3 also performs similar heating control for each heat generating chip (not shown) constituting the second holding member main body 82 ', and sets the heat transfer plate 84' to the target temperature.

[Operation of medical treatment system]
Next, the operation | movement (operation method) of the medical treatment system 1 mentioned above is demonstrated.
The surgeon grasps the medical treatment device 2 and inserts the distal end portion of the medical treatment device 2 (a part of the treatment portion 7 and the shaft 6) into the abdominal cavity through, for example, the abdominal wall. Then, the operator operates the operation knob 51 to open and close the first and second holding members 8 and 8 ′, and sandwich the living tissue to be treated by the first and second holding members 8 and 8 ′.

Next, the surgeon operates the foot switch 4 to turn on the power supply from the control device 3 to the medical treatment device 2. When switched on, the control device 3 causes each heat generating chip 83 constituting the first holding member main body 82 and each heat generating chip (not shown) constituting the second holding member main body 82 'via the electric cable C. A voltage is applied to the heat transfer plate 84 and 84 'to control the heating so as to reach the target temperature. Then, due to the heat of the heat transfer plates 84 and 84 ', the living tissue in contact with the heat transfer plates 84 and 84' (treatment planes 842 and 842 ') is cauterized and solidified.
Finally, the operator operates the operation knob 51 to move the cutter 9 and cut the coagulated living tissue.

In the medical treatment apparatus 2 according to the first embodiment described above, the first holding member main body 82 has a thermal conductivity in the plane direction (X, Y direction) that is greater than the thermal conductivity in the thickness direction (Z direction). A heat transfer plate 84 having a high heat conduction anisotropic function is provided. For this reason, when each heat generating chip 83 is energized, heat is transmitted in the plane direction faster than heat is transmitted in the thickness direction inside the heat transfer plate 84, and each heat generating chip 83 is not joined to each region (each The temperature in the region between the heat generating chips 83 (hereinafter referred to as a non-bonded region) is interpolated.
Therefore, according to the medical treatment device 2 according to the first embodiment, the temperature distribution of the treatment plane 842 of the heat transfer plate 84 is made uniform, and heat energy can be applied to the living tissue uniformly. There is an effect.

In particular, according to the medical treatment apparatus 2 according to the first embodiment, as shown below, before the temperature of the treatment plane 842 of the heat transfer plate 84 becomes saturated (after energization of each heating chip 83, In the initial stage (beginning of temperature rise), the above effect is significant.
FIG. 5 is a diagram for explaining the effect of the first embodiment of the present invention. Specifically, FIG. 5 is a view of the first holding member body 82 as viewed from above in FIG. 1 or FIG. In FIG. 5, for convenience of explanation, illustration of the lead wires C <b> 1 and C <b> 2 (FIG. 3) constituting the electric cable C is omitted.
In FIG. 5, a region ArH is a U-shaped bent portion of the heat transfer plate 84, and each heat generation when the heat transfer plate 84 is made of copper as in the conventional case (hereinafter referred to as a conventional case). This is a region where the temperature is higher than other regions when the chip 83 is energized. Further, the region ArL is a region facing the non-bonded region in the heat transfer plate 84, and in the conventional case, the region becomes lower in temperature than the other regions when each heat generating chip 83 is energized.

In each case where the heat transfer plate 84 is composed of the compositoid having the heat conduction anisotropy function described in the first embodiment (hereinafter referred to as the case of the present invention), each heat generating chip is used. After energization to 83, the temperature difference between the regions ArH and ArL in the initial stage was measured.
As a result, at 0.5 s after energization, the temperature difference between the regions ArH and ArL was 10 ° C. in the conventional case, and the temperature difference was 5 ° C. in the present invention. Further, at 0.7 s after energization, the temperature difference was 18 ° C. in the conventional case, and the temperature difference was 8 ° C. in the present invention.
From the above, by adopting the comporoid having the heat conduction anisotropic function described in the first embodiment, the temperature difference in the initial stage after energization is about 1 / The above effect was particularly large.

  Further, the second holding member main body 82 ′ also employs the heat transfer plate 84 ′ having the above-described heat conduction anisotropy function, and thus has the same effect as described above. Since the living tissue can be sandwiched between the first and second holding member bodies 82 and 82 'and the thermal energy can be applied uniformly to the living tissue from both sides, the living tissue can be effectively treated. Can do.

(Embodiment 2)
Next, a second embodiment of the present invention will be described.
In the following description, the same reference numerals are given to the same components as those in the first embodiment described above, and detailed description thereof will be omitted or simplified.
In the medical treatment system 1 according to Embodiment 1 described above, the first holding member main body 82 employs a plurality of heat generating chips 83 as the heat generating portion according to the present invention. The same applies to the second holding member main body 82 '.
On the other hand, in the medical treatment system according to the second embodiment, the first holding member main body employs a heat generating sheet as the heat generating portion according to the present invention.
The first and second holding member bodies according to the second embodiment have the same configuration. For this reason, below, only the structure of the 1st holding member main body which concerns on this Embodiment 2 is demonstrated.

[Configuration of the first holding member body]
FIG. 6A is an overall perspective view of a first holding member main body 82A according to Embodiment 2 of the present invention. FIG. 6B is an exploded perspective view of the first holding member main body 82A shown in FIG. 6A. Specifically, FIGS. 6A and 6B are views of the first holding member main body 82A as viewed from above in FIG. 1 or FIG. 6A and 6B, illustration of the lead wires C1 and C2 (FIG. 3) constituting the electric cable C is omitted for convenience of explanation.
As shown in FIG. 6A or 6B, the first holding member main body 82A has two arm portions 821 and 822 extending in parallel, like the first holding member main body 82 described in the first embodiment. The whole is formed in a substantially U shape.
The “inner side” described below means the U-shaped inner peripheral side (sides adjacent to each other in the two arm portions 821 and 822) of the first holding member main body 82A, and the “outer side” means the first It means the U-shaped outer peripheral side of the holding member main body 82A (the two arm portions 821 and 822 are separated from each other).

6A or 6B, the first holding member main body 82A includes the heat transfer plate 84 described in the first embodiment, the adhesive sheet 85, and the heat generating sheet 86, and is on the + Z direction side. The heat transfer plate 84, the adhesive sheet 85, and the heat generation sheet 86 are stacked in this order.
The adhesive sheet 85 is a member that has substantially the same outer shape as the heat transfer plate 84 and is interposed between the heat transfer plate 84 and the heat generation sheet 86 to bond the heat transfer plate 84 and the heat generation sheet 86. This adhesive sheet 85 is a sheet having high thermal conductivity, withstanding high temperatures, and having adhesiveness. For example, an epoxy resin is mixed with a ceramic having high thermal conductivity such as alumina or aluminum nitride. Is formed.

The heat generating sheet 86 is a part that functions as a sheet heater. As shown in FIG. 6A or 6B, the tip ends of the two arm portions 821 and 822 are longer than the heat transfer plate 84 and the adhesive sheet 85. That is, in the state where the first holding member main body 82A is assembled, as shown in FIG. 6A, the leading ends of the two arm portions 821, 822 of the heat generating sheet 86 protrude from the heat transfer plate 84 and the adhesive sheet 85. As shown in FIG. 6A or 6B, the heat generating sheet 86 has a heat generating pattern 862 deposited on one surface of the substrate 861 (the surface on the upper side (+ Z direction in FIGS. 6A and 6B)). It has the structure formed by.
The substrate 861 is a sheet made of an insulating material such as polyimide. As shown in FIG. 6B, notches 8611 and 8612 are formed in a part of each edge on the inner side of the substrate 861.
Here, the material of the heating pattern 862 described in detail below is stainless steel, platinum, or the like.

The heat generation pattern 862 is a pattern used to heat the heat generation sheet 86. As shown in FIG. 6A or 6B, the heating pattern 862 includes two lead connection portions 8621 and 8622 and an electric resistance pattern 8623 (FIG. 6B).
As shown in FIG. 6A or 6B, the two lead connection portions 8621 and 8622 are provided on the distal end sides of the two arm portions 821 and 822, respectively. That is, the two lead connecting portions 8621 and 8622 are exposed to the outside in a state where the first holding member main body 82A is assembled. The lead wires C1 and C2 (not shown in FIGS. 6A and 6B) constituting the electric cable C are joined to the two lead connection portions 8621 and 8622, respectively.

  The electrical resistance pattern 8623 corresponds to the electrical resistance pattern according to the present invention. As shown in FIG. 6B, one end is connected to one lead connection portion 8621, and the shape (U-shape) of the substrate 861 extends from the one end. The other end is connected to the other lead connection portion 8622. The electrical resistance pattern 8623 generates heat when voltage is applied (energized) to the lead connection portions 8621 and 8622 by the control device 3 via the lead wires C1 and C2. As shown in FIG. 6B, the electrical resistance pattern 8623 includes a first pattern portion 8624 and two second pattern portions 8625 and 8626.

As shown in FIG. 6B, the first pattern portion 8624 is formed in a wavy shape having a constant line width and meandering from the inside to the outside of the substrate 861 and from the outside to the inside at a constant cycle.
As shown in FIG. 6B, the two second pattern portions 8625 and 8626 are provided on positions that are part of the path of the first pattern portion 8624 and that are opposed to the two notches 8611 and 8612 in the substrate 861, respectively. It has been. The two second pattern portions 8625 and 8626 have substantially the same line width and cycle as the first pattern portion 8624, and a separation dimension (first dimension) between the innermost position and the outermost position of the first pattern portion 8624. It has a wave shape with a smaller amplitude than that of the waveform portion 8624 (corresponding to the wave shape amplitude).
That is, the electric resistance pattern 8623 has a different heat generation density depending on the location (the heat generation density of the first pattern portion 8624 is high and the heat generation density of the two second pattern portions 8625 and 8626 is low).

  Note that the heating control performed by the control device 3 according to the second embodiment is different from that of the first embodiment described above in that the heating control is performed from a plurality of heat generating chips 83 to a heat generating sheet 86 (electric resistance pattern 8623). The only difference is that it was changed to. For this reason, also in the second embodiment, the heat transfer plate 84 of the first holding member main body 82A is set to the target temperature, as in the first embodiment. The same heating control is performed for the second holding member body according to the second embodiment.

According to the second embodiment described above, the following effects are obtained.
FIG. 7 is a diagram for explaining the effect of the second embodiment of the present invention. Specifically, FIG. 7 is a view of the first holding member main body 82A as viewed from above in FIG. 1 or FIG. In FIG. 7, for convenience of explanation, illustration of the lead wires C <b> 1 and C <b> 2 (FIG. 3) constituting the electric cable C is omitted.
In FIG. 7, a region ArH is a U-shaped bent portion of the heat transfer plate 84 or the tip side of the two arm portions 821 and 822, and in the conventional case (the heat transfer plate 84 is made of copper as in the conventional case. In this case, when the electric resistance pattern 8623 is energized, the temperature is higher than the other regions. The region ArL is a region corresponding to the second pattern portions 8625 and 8626, and in the conventional case, when the electric resistance pattern 8623 is energized, the temperature is lower than other regions.
As in the first embodiment (FIG. 5) described above, the temperature difference between the regions ArH and ArL at the initial stage after energization of the electric resistance pattern 8623 is different between the conventional case and the case of the present invention. It was measured. As a result, similar to the first embodiment described above, in the case of the present invention, the temperature difference in the initial stage after energization is about ½ compared to the conventional case.
Therefore, even when the heat generating sheet 86 is employed instead of the plurality of heat generating chips 83 as in the second embodiment, the same effects as those of the first embodiment described above can be obtained.

(Embodiment 3)
Next, a third embodiment of the present invention will be described.
In the following description, the same reference numerals are given to the same components as those in the first embodiment described above, and detailed description thereof will be omitted or simplified.
In the medical treatment system 1 according to Embodiment 1 described above, the first holding member main body 82 has the heat transfer anisotropic function according to the present invention in the heat transfer plate 84. The same applies to the second holding member main body 82 '.
On the other hand, in the medical treatment system according to the third embodiment, the first holding member main body has the heat conduction anisotropic function according to the present invention in another member different from the heat transfer plate.
The first and second holding member bodies according to the third embodiment have the same configuration. For this reason, below, only the structure of the 1st holding member main body which concerns on this Embodiment 3 is demonstrated.

[Configuration of the first holding member body]
FIG. 8A is an overall perspective view of the first holding member main body 82B according to Embodiment 3 of the present invention. FIG. 8B is an exploded perspective view of the first holding member body 82B shown in FIG. 8A. Specifically, FIGS. 8A and 8B are views of the first holding member main body 82B as viewed from below in FIG. 1 or FIG. 8A and 8B, for convenience of explanation, the wire 836 and the lead wires C1 and C2 constituting the electric cable C are not shown, and the configuration of each heat generating chip 83 is simplified.
As shown in FIG. 8A or 8B, the first holding member main body 82B has two arm portions 821 and 822 extending in parallel, like the first holding member main body 82 described in the first embodiment. The whole is formed in a substantially U shape.
As shown in FIG. 8A or 8B, the first holding member main body 82B is joined to the plurality (seven) of heat generating chips 83 described in the first embodiment and the plurality of heat generating chips 83. The heat conductive sheet 87, the adhesive sheet 85 described in the second embodiment, and the heat transfer plate 84B are provided. From the −Z direction side, the heat conductive sheet 87, the adhesive sheet 85, and the heat transfer plate 84B are sequentially provided. It has a stacked configuration.

The heat conductive sheet 87 has a function as a heat conductive member according to the present invention. As shown in FIG. 8A or FIG. 8B, the heat conductive sheet 87 has one surface (the upper side (−Z in FIG. 8A and FIG. 8B), like the heat transfer plate 84 described in the first embodiment. Each heat generating chip 83 is joined to the surface (direction) by soldering. The heat conductive sheet 87 transmits the heat from each heat generating chip 83 to the heat transfer plate 84B via the adhesive sheet 85.
The heat conductive sheet 87 described above is composed of, for example, a graphite sheet (manufactured by Panasonic) or the like (or the comporoid described in the first embodiment described above), and has the following heat transfer anisotropic function.
Here, the X, Y, and Z directions shown in FIGS. 8A and 8B are set with reference to the treatment plane 842 of the heat transfer plate 84B, and the X, Y, and Z directions described in the first embodiment are described above. The direction is the same as the Z direction. The heat conductive sheet 87 is laminated on the heat transfer plate 84B and the adhesive sheet 85 as described above. For this reason, the planar direction of the heat conductive sheet 87 is the X and Y directions, and the normal direction of the heat conductive sheet 87 is the Z direction.
Specifically, the heat conduction sheet 87 has a heat conductivity in the X and Y directions (plane direction) in the Z direction (like the heat conduction anisotropic function of the heat transfer plate 84 described in the first embodiment described above). It has a thermal conductivity anisotropy function higher than the thermal conductivity in the thickness direction). For example, when the heat conductive sheet 87 is composed of a graphite sheet, the heat conductivity in the X and Y directions is about 1000 (W / m · K), and the heat conductivity in the Z direction is about 5 (W / m・ K).

The heat transfer plate 84B has a function as a heat transfer plate according to the present invention. That is, the heat conductive sheet 87 and the heat transfer plate 84B have a function as a heat transfer unit according to the present invention. The heat transfer plate 84B has the same shape as the heat transfer plate 84 described in the first embodiment, but is made of a material different from the heat transfer plate 84.
Specifically, the heat transfer plate 84B does not have the thermal conductivity anisotropy function described in the above-described first embodiment (isotropically has the same value of thermal conductivity), and has a thermal conductivity. It is made of a good metal (for example, copper).

Even in the case where the heat conduction anisotropic function is provided not in the heat transfer plate 84B but in the heat conduction sheet 87 as in the third embodiment described above, the same effects as those in the first embodiment described above can be obtained. .
In addition, since the above-described effect can be obtained even if the above-described heat conduction anisotropy function is given to the heat conduction sheet 87 that does not come into contact with the living tissue, the heat transfer plate 84B that comes into contact with the living tissue can be made of various materials. It becomes possible to configure, and the degree of freedom of the material of the heat transfer plate 84B can be improved.

(Modification of Embodiment 3)
FIG. 9A is an overall perspective view of a first holding member main body 82C according to a modification of the third embodiment of the present invention. FIG. 9B is an exploded perspective view of the first holding member body 82C shown in FIG. 9A. Specifically, FIGS. 9A and 9B are views of the first holding member main body 82C as viewed from above in FIG. 1 or FIG. 9A and 9B, illustration of the lead wires C1 and C2 (FIG. 3) constituting the electric cable C is omitted for convenience of explanation.
For the first holding member main body 82A (FIGS. 6A and 6B) described in the second embodiment, the heat transfer section according to the present invention is used as the heat transfer sheet 87 and the heat transfer plate as in the third embodiment. You may employ | adopt the 1st holding member main body 82C (FIG. 9A, FIG. 9B) made into the structure divided into 84B. The same applies to the second holding member main body.
Specifically, as shown in FIG. 9A or 9B, the first holding member main body 82C is described in the heat conductive sheet 87 and the heat transfer plate 84B described in the third embodiment and the second embodiment described above. The adhesive sheet 85 and the heat generating sheet 86 are provided. Here, the first holding member body 82 </ b> C includes two adhesive sheets 85. And the 1st holding member main body 82C has the structure laminated | stacked in order of the heat-transfer board 84B, the adhesive sheet 85, the heat conductive sheet 87, the adhesive sheet 85, and the heat generating sheet 86 from the + Z direction side.
Even when the first holding member main body 82C as described above is employed, the same effects as those of the second and third embodiments described above can be obtained.

(Embodiment 4)
Next, a fourth embodiment of the present invention will be described.
In the following description, the same reference numerals are given to the same components as those in the first embodiment described above, and detailed description thereof will be omitted or simplified.
FIG. 10 is an overall perspective view of the first holding member body 82D according to Embodiment 4 of the present invention. Specifically, FIG. 10 is a view of the first holding member main body 82D viewed from the lower side in FIG. 1 or FIG.
In the medical treatment system according to the fourth embodiment, the first holding member main body 82D is in contrast to the first holding member main body 82 (FIG. 3) described in the first embodiment as shown in FIG. Instead of the heat transfer plate 84, a heat transfer plate 84D having a thermal conductivity anisotropic function different from the thermal conductivity anisotropic function described in the first embodiment is employed. Note that the second holding member main body 82D ′ (see FIG. 11) according to the fourth embodiment has the same configuration as the first holding member main body 82D.
The heat transfer plate 84D is configured with the same shape and material as the heat transfer plate 84 described in the first embodiment. The heat transfer plate 84D has the following thermal conduction anisotropy function.
Specifically, the heat transfer plate 84D has a thermal conductivity anisotropic function in which the thermal conductivity in the Y and Z directions (longitudinal direction and thickness direction) is higher than the thermal conductivity in the X direction (short direction). For example, when the heat transfer plate 84D is composed of a comporoid, the thermal conductivity in the Y and Z directions is about 1700 (W / m · K), and the thermal conductivity in the X direction is about 7 (W / m).・ K).

According to the fourth embodiment described above, there are the following effects in addition to the effects similar to those of the first embodiment.
FIG. 11 is a diagram for explaining the effect of the fourth embodiment of the present invention. Specifically, FIG. 11 is a cross-sectional view of the state in which the living tissue O is sandwiched between the first and second holding member main bodies 82D and 82D ′ cut along the XZ plane (FIG. 10). In FIG. 11, as the reference numeral indicating the configuration of the second holding member main body 82 </ b> D ′, for the same configuration as the first holding member main body 82 </ b> D, “′” is added to the reference numeral indicating the configuration of the first holding member main body 82 </ b> D. These are added (a heat generating chip 83 ′, a heat transfer plate 84D ′, etc.).
In FIG. 11, a region Ab is a region in the living tissue O that is cauterized by the heat energy applied from the first and second holding member bodies 82D and 82D ′. The position CT is a position where the living tissue O is cut by the cutter 9.

The first holding member main body 82D according to the fourth embodiment has a thermal conductivity anisotropy in which the thermal conductivity in the longitudinal direction and the thickness direction (Y, Z direction) is higher than the thermal conductivity in the short direction (X direction). A heat transfer plate 84D having For this reason, when each heat generating chip 83 is energized, heat is transmitted in the longitudinal direction and the thickness direction faster than heat is transmitted in the short direction inside the heat transfer plate 84D. That is, since heat transfer to the outside of the heat transfer plate 84D is poor, the temperature of each of the inner and outer regions is lower than the target temperature in the treatment plane 842 of the heat transfer plate 84D, and the heat treatment plate 84D has a central region of the treatment plane 842. The temperature is approximately the target temperature. The same applies to the second holding member main body 82D ′.
Therefore, when thermal energy is applied to the living tissue O from the first and second holding member main bodies 82D and 82D ′, the living tissue O is placed in each central region in each treatment plane 842, 842 ′ as shown in FIG. Only the opposing region Ab is cauterized. That is, the width (width in the X direction) of the region Ab to be cauterized is reduced (less than the width in the X direction on the treatment planes 842 and 842 ′), and the influence (cautery) due to the thermal energy on the living tissue O is minimized. Can be limited.

(Modification of Embodiment 4)
FIG. 12A is an overall perspective view of a first holding member main body 82E according to a modified example of Embodiment 4 of the present invention. 12B is an exploded perspective view of the first holding member main body 82E shown in FIG. 12A. Specifically, FIGS. 12A and 12B are views of the first holding member main body 82E as viewed from above in FIG. 1 or FIG. In FIG. 12A and FIG. 12B, illustration of the lead wires C1 and C2 (FIG. 3) constituting the electric cable C is omitted for convenience of explanation.
The first holding member obtained by changing the heat transfer plate 84 to the heat transfer plate 84D described in the fourth embodiment described above with respect to the first holding member main body 82A (FIGS. 6A and 6B) described in the second embodiment described above. You may employ | adopt the main body 82E (FIG. 12A, FIG. 12B). The same applies to the second holding member main body.
Even when the first holding member main body 82E as described above is employed, the same effects as those of the second and fourth embodiments described above can be obtained.

(Embodiment 5)
Next, a fifth embodiment of the present invention will be described.
In the following description, the same reference numerals are given to the same components as those in the third embodiment described above, and the detailed description thereof is omitted or simplified.
In the medical treatment system according to the fifth embodiment, the first holding member main body has a heat conductive sheet 87 compared to the first holding member main body 82B (FIGS. 8A and 8B) described in the third embodiment. And the shape of the adhesive sheet 85 is changed.
The first and second holding member bodies according to the fifth embodiment have the same configuration. For this reason, below, only the structure of the 1st holding member main body which concerns on this Embodiment 5 is demonstrated.

[Configuration of the first holding member body]
FIG. 13A is an overall perspective view of a first holding member main body 82F according to Embodiment 5 of the present invention. 13B is an exploded perspective view of the first holding member body 82F shown in FIG. 13A. Specifically, FIG. 13A and FIG. 13B are views of the first holding member main body 82F viewed from the lower side in FIG. 1 or FIG. 13A and 13B, for convenience of explanation, the wire 836 and the lead wires C1 and C2 constituting the electric cable C are not shown, and the configuration of each heat generating chip 83 is simplified.
As shown in FIG. 13A or 13B, the heat conductive sheet 87F according to the fifth embodiment has an inner shape that is the same as the inner shape of the heat transfer plate 84B, while the outer shape is the heat transfer. It has a planar shape (a planar shape whose width dimension (width dimension in the X direction) is smaller than the width dimension of the heat transfer plate 84B) offset inward with respect to the outer shape of the plate 84B. The adhesive sheet 85F according to the fifth embodiment has the same planar shape as the heat conductive sheet 87F.

According to the fifth embodiment described above, there are the following effects in addition to the same effects as in the third embodiment.
FIG. 14 is a diagram for explaining the effect of the fifth embodiment of the present invention. Specifically, FIG. 14 is a cross-sectional view of the state in which the living tissue O is sandwiched between the first and second holding member main bodies 82F and 82F ′ cut along the XZ plane (FIGS. 13A and 13B). In FIG. 14, as a symbol indicating the configuration of the second holding member main body 82 </ b> F ′, for the same configuration as the first holding member main body 82 </ b> F, the symbol indicating the configuration of the first holding member main body 82 </ b> F is “′”. These are added (heat transfer plate 84B ′, adhesive sheet 85F ′, heat conductive sheet 87F ′, etc.).
In FIG. 14, a region Ab is a region in the living tissue O that is cauterized by the thermal energy given from the first and second holding member bodies 82F and 82F ′. The position CT is a position where the living tissue O is cut by the cutter 9.

In the first holding member main body 82F according to the fifth embodiment, the heat conductive sheet 87F has a planar shape in which the outer shape is offset inward with respect to the outer shape of the heat transfer plate 84B. Therefore, when each heating chip 83 is energized, the heat transfer from the heating chip 83 to the heat transfer plate 84B is different between the inside and the outside, and the heat is transferred to the inside faster than the heat is transferred to the outside. To do. That is, since heat transfer to the outside of the heat transfer plate 84B is poor, the temperature of the outer region is lower than the target temperature and the temperature of the inner region becomes substantially the target temperature on the treatment plane 842 in the heat transfer plate 84B. . The same applies to the second holding member main body 82F ′.
Therefore, when thermal energy is applied to the living tissue O from the first and second holding member main bodies 82F and 82F ′, the living tissue O corresponds to the inside of each treatment plane 842, 842 ′ as shown in FIG. Only the region Ab is cauterized, and the same effect (FIG. 11) as that of the fourth embodiment described above is achieved.

(Modification of Embodiment 5)
FIG. 15A is an overall perspective view of a first holding member main body 82G according to a modification of Embodiment 5 of the present invention. FIG. 15B is an exploded perspective view of the first holding member main body 82G shown in FIG. 15A. Specifically, FIGS. 15A and 15B are views of the first holding member main body 82G as viewed from above in FIG. 1 or FIG. 15A and 15B, illustration of the lead wires C1 and C2 (FIG. 3) constituting the electric cable C is omitted for convenience of explanation.
The heat conductive sheet 87 is changed to the heat conductive sheet 87F described in the fifth embodiment described above with respect to the first holding member main body 82C (FIGS. 9A and 9B) described in the modification of the third embodiment described above. One holding member main body 82G (FIGS. 15A and 15B) may be adopted. The same applies to the second holding member main body.
Even when the first holding member main body 82G as described above is employed, the same effects as those of the modified example of the third embodiment and the fifth embodiment described above can be obtained.

(Other embodiments)
Up to this point, the mode for carrying out the present invention has been described. However, the present invention should not be limited only by the first to fifth embodiments.
FIG. 16 is a diagram showing a modification of the first to fifth embodiments of the present invention. Specifically, FIG. 16 is a view showing a first holding member main body 82H according to a modification of the first to fifth embodiments of the present invention. In FIG. 16, for convenience of explanation, the configuration of the first holding member main body 82H is simplified and only the outer shape is illustrated.
The treatment plane 842 (first holding member main bodies 82, 82A to 82G) according to the above-described first to fifth embodiments (including these modified examples) has an overall substantially elongated shape extending linearly. However, the present invention is not limited to this, and the treatment plane 842H (first holding member main body 82H) shown in FIG. 16 may be adopted. The same applies to the second holding member main body.
Here, the X, Y, and Z directions shown in FIG. 16 are the same directions as the X, Y, and Z directions described in the first embodiment.
Specifically, in the first holding member main body 82H, the distal end portions of the first holding member main bodies 82 and 82A to 82G described in the first to fifth embodiments (including these modifications) are parallel to the Z axis. It has a shape bent at a predetermined curvature around the axis. That is, the treatment plane 842H has a shape extending in a curved line along the XY plane, as shown in FIG.
At this time, as the heat conduction anisotropy function, the heat conduction anisotropy function described in the first to fifth embodiments (including these modifications) (the heat conductivity in the X and Y directions is the Z direction). A thermal conductivity anisotropic function similar to that of the thermal conductivity higher than the thermal conductivity or higher in the Y and Z directions than the thermal conductivity in the X direction may be employed.

FIG. 17 is a diagram showing a modification of the first to fifth embodiments of the present invention. Specifically, FIG. 17 is a diagram showing a first holding member main body 82I according to a modification of the first to fifth embodiments of the present invention. In FIG. 17, for convenience of explanation, the configuration of the first holding member main body 82I is simplified, and only the outer shape is illustrated.
The treatment plane 842 (first holding member main bodies 82 and 82A to 82G) according to the above-described first to fifth embodiments (including these modifications) is formed in a flat shape, but is not limited thereto. The treatment curved surface 842I (first holding member main body 82I) shown in FIG. 17 may be adopted. The same applies to the second holding member main body.
Here, the X, Y, and Z directions shown in FIG. 17 are the same directions as the X, Y, and Z directions described in the first embodiment.
Specifically, in the first holding member main body 82I, the tip portions of the first holding member main bodies 82 and 82A to 82G described in the first to fifth embodiments (including these modifications) are parallel to the X axis. It has a shape bent at a predetermined curvature around the axis. That is, the treatment curved surface 842I has a shape curved in the out-of-plane direction with respect to the XY plane, as shown in FIG.
At this time, as the heat conduction anisotropy function, the heat conduction anisotropy function described in the above-described embodiment 4 (including modifications thereof) (the heat conductivity in the Y and Z directions is the heat conduction in the X direction). The heat conduction anisotropic function similar to the above may be adopted.

  In the above-described first to fifth embodiments (including these modifications), the members having the heat conduction anisotropy function according to the present invention (heat transfer plates 84, 84 ', 84D, 84D', heat conduction sheet 87, 87F, 87F ′) is configured by a plate having a uniform thickness, but is not limited thereto, and may be a wedge-shaped member having a non-uniform thickness.

In the above-described first to fifth embodiments (including these modifications), the first holding member main bodies 82, 82A to 82I and the second holding member main bodies 82 ′, 82D ′, and 82F ′ have the same configuration (the treatment target). However, the present invention is not limited to this.
For example, the second holding member main bodies 82 ′, 82D ′, and 82F ′ are configured differently from the first holding member main bodies 82 and 82A to 82I, and heat energy is applied to the living tissue only from the first holding member main bodies 82 and 82A to 82I. You may comprise so that it may act.

In the first to fifth embodiments described above (including these modifications), the living tissue is sandwiched between the first holding member main bodies 82, 82A to 82I and the second holding member main bodies 82 ', 82D', 82F '. However, the present invention is not limited to this.
For example, the second holding member main bodies 82 ′, 82D ′, and 82F ′ are omitted, and the living tissue is treated by contacting only the first holding member main bodies 82 and 82A to 82I with the living tissue to be treated. May be adopted. At this time, the planar shape of the first holding member main bodies 82 and 82A to 82I is not limited to the U shape, and may be other shapes such as an I shape.

  A configuration in which high-frequency energy is applied to the living tissue to be treated on the first holding member main bodies 82 and 82A to 82I according to Embodiments 1 to 5 (including these modifications) described above. May be added. The same applies to the second holding member main body.

  In the above-described second embodiment and the modified examples of the above-described third to fifth embodiments, the shape of the electrical resistance pattern 8623 is described in the above-described second embodiment and the above-described modified examples of the third to fifth embodiments. The shape is not limited to the above, and other shapes may be used.

  In Embodiments 1 to 5 (including these modified examples) described above, the biological tissue is cut using the cutter 9, but is not limited thereto, ultrasonic vibration, heat transferred from a heating element, or the like. You may employ | adopt the structure which cut | disconnects a biological tissue using.

DESCRIPTION OF SYMBOLS 1 Medical treatment system 2 Medical treatment apparatus 3 Control apparatus 4 Foot switch 5 Handle 6 Shaft 7 Treatment part 8 1st holding member 8 '2nd holding member 9 Cutter 51 Operation knob 81 1st support frame 81' 2nd support frame 82, 82A to 82D, 82D ', 82E to 82I First holding member main body 82' Second holding member main body 83, 83 'Heat generating chip 84, 84', 84B, 84B ', 84D, 84D' Heat transfer plate 85, 85F , 85F ′ Adhesive sheet 86 Heat generation sheet 87, 87F, 87F ′ Thermal conductive sheet 811, 811 ′ Notch 821, 821 ′, 822, 822 ′ Arm part 831 Substrate 832 Electrical resistance pattern 833 Electrode 834 Insulating layer 835 Metal layer 836 Wire 841 Surface 842, 842 ', 842H Treatment plane 842I Treatment curved surface 861 Substrate 862 Heat generation pattern 8611, 8612 Notch portion 8621, 8622 Lead connection portion 8623 Electrical resistance pattern 8624 First pattern portion 8625, 8626 Second pattern portion ArH, ArL, Ab region C Electrical cable C1, C2 Lead wire CT position O Biological tissue R1, R2 Arrow

Claims (7)

A heating part that generates heat when energized;
A heat transfer section that contacts the living tissue and transfers heat from the heat generating section to the living tissue,
The heat transfer section is
The thermal conductivity in two directions among the X direction, the Y direction, and the Z direction orthogonal to each other has a thermal conductivity anisotropic function higher than the thermal conductivity in the other one direction. Medical treatment device. The heat transfer section is
A treatment plane in contact with the living tissue;
The treatment plane is
The plane direction of the treatment plane corresponds to the X direction and the Y direction, the normal direction of the treatment plane corresponds to the Z direction,
The heat conduction anisotropy function is
The medical treatment apparatus according to claim 1, wherein the thermal conductivity in the X direction and the Y direction has a higher function than the thermal conductivity in the Z direction. The heat transfer section is
Having an elongated treatment plane in contact with the biological tissue;
The treatment plane is
The lateral direction of the treatment plane corresponds to the X direction, the longitudinal direction of the treatment plane corresponds to the Y direction, the normal direction of the treatment plane corresponds to the Z direction,
The heat conduction anisotropy function is
The medical treatment apparatus according to claim 1, wherein the thermal conductivity in the Y direction and the Z direction has a higher function than the thermal conductivity in the X direction. The heat transfer section is
A heat transfer plate in contact with the living tissue;
The medical treatment according to any one of claims 1 to 3, further comprising: a heat conducting member disposed between the heat generating portion and the heat transfer plate and having the heat conduction anisotropic function. apparatus. The heat transfer plate is
Having an elongated treatment plane in contact with the biological tissue;
The treatment plane is
The plane direction of the treatment plane corresponds to the X direction and the Y direction, the normal direction of the treatment plane corresponds to the Z direction,
The heat conduction anisotropy function is
The thermal conductivity in the X direction and the Y direction is a function higher than the thermal conductivity in the Z direction,
The heat conducting member is
5. The medical treatment apparatus according to claim 4, wherein the medical treatment apparatus has a planar shape offset inward with respect to an outer edge of the treatment plane. The heating part is
The medical treatment apparatus according to claim 1, further comprising a plurality of heat generating chips that generate heat when energized. The heating part is
The medical treatment apparatus according to any one of claims 1 to 5, wherein the electrical resistance pattern that generates heat when energized is a heat generating sheet formed on one surface.

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