KR20110022770A - Trocar assembly and operation apparatus for hyperthermic intraperitoneal chemotherapy including the same - Google Patents

Abstract

PURPOSE: A trocar assembly and an operation apparatus for hyperthermic intraperitoneal chemotherapy including the same are provided to increase the entrance-exit cross section of fluid by including a fluid circulating part with a plurality of holes. CONSTITUTION: A trocar assembly includes an inserting pipe(120) and a fluid circulating part(130). The inserting pipe forms the fluid path of fluid through which fluid enters and exits from inside to outside of human body. The fluid circulating part including a plurality of holes, through which the fluid enters and exits, is detachably integrated with the inserting pipe and guides the fluid to the fluid path.

Description

Trocar assembly and surgical device for heat chemotherapy comprising same {TROCAR ASSEMBLY AND OPERATION APPARATUS FOR HYPERTHERMIC INTRAPERITONEAL CHEMOTHERAPY INCLUDING THE SAME}

The present invention relates to a trocar assembly and a surgical device for thermal chemotherapy comprising the same, and more particularly, to increase the outflow area of the fluid to prevent tissue or organ damage caused by the outflow of the fluid, It relates to a tubular assembly that can improve the circulation efficiency of the fluid flowing in and out, and a surgical device for heat chemotherapy comprising the same.

In ovarian cancer and abdominal tumor removal procedures, intraperitoneal hyperthermic intraperitoneal chemotherapy (HIPEC) is used to destroy the tumor cells in the abdominal cavity by fresh water in the abdominal cavity of the patient during the procedure.

The intraperitoneal heat chemotherapy is a treatment for fresh water mixed with an anticancer agent of about 42 degrees Celsius, which is a temperature that can destroy only tumor cells without affecting normal tissues, in the abdominal cavity for 1 to 2 hours.

On the other hand, the surgical device for treatment by the abdominal heat chemotherapy in the abdominal cavity is a fluid circulation loop in which the inflow and outflow of hot water continuously into and out of the human body continuously to maintain a constant temperature of about 42 degrees Celsius of hot water in the body at all times Should consist of Here, the surgical device for intraperitoneal heat chemotherapy consisting of a fluid circulation loop is a pump for fluid circulation, fluid A thermoregulator for temperature control, and a trocar for inflow and outflow of fluid are directly inserted into the human body together with various sensors for sensing the temperature of the fluid.

Here, in the trocar of the conventional intraperitoneal thermal chemotherapy device for surgery, fluid flows into and out of the inlet through which the trocar tip penetrates the skin. Such a trocar may have a small cross-sectional area of the inlet and outlet, which may result in clogging of the inlet by tissues and organs inside the human body, and thus damage to tissues and organs may occur due to an increase in pressure.

In addition, due to the inlet blockage phenomenon, the circulation of the fluid is not smoothly performed, and there is a problem in that the temperature maintenance function of the fluid freshwater inside the human body is lowered.

Accordingly, an object of the present invention relates to a trocar assembly capable of preventing damage to tissues and organs inside the human body by improving the structure of the trocar for introducing fluid into and out of the human body, and a surgical chemotherapy device for thermal chemotherapy comprising the same. .

Another object of the present invention is to improve the trocar structure to prevent clogging of the trocar, which may be caused by tissues and organs inside the human body when the fluid flows in and out for efficient circulation of the fluid into and out of the human body. The present invention relates to an assembly and a surgical chemotherapy device comprising the same.

The objects of the present invention are not limited to the above-mentioned objects, and other objects which are not mentioned will be clearly understood by those skilled in the art from the following description.

According to the present invention, in the trocar assembly for heat chemotherapy according to the present invention, the insertion tube which is inserted into the interior of the human body and forms an outflow passage of the fluid flowing in and out of the human body, and the insertion It is made by a trocar assembly characterized in that it comprises a fluid circulation portion is provided in the tube and inserted into the interior of the body and the fluid flow in and out along the periphery of the outer surface to guide the fluid into the outflow passage.

Here, the fluid circulation portion is preferably provided integrally with the insertion tube in a region adjacent to the tip of the insertion tube.

Preferably the fluid circulation can be detachably coupled to the insertion tube.

The insertion tube may further include a cannula fastening part provided at a rear end of the insertion tube that is exposed when the insertion tube is inserted into the human body and having an outflow channel for the fastening part communicating with the outflow channel of the insertion tube.

The diameter of the outlet flow passage for the fastening portion is preferably smaller than the diameter of the outlet flow passage of the insertion pipe.

And, preferably, the cannula fastening portion may be provided with an insertion port for the temperature sensing means is inserted into the temperature sensing means for sensing the temperature of the fluid flowing on the outflow passage for the fastening portion.

The insertion port for the temperature sensing means may include a leakage blocking film for blocking the leakage current of the temperature sensing means.

The tube may further include a bushing tip provided to be capable of entering and exiting the insertion tube and penetrating the skin of the human body to form a through hole for guiding insertion of the insertion tube and the fluid circulation part.

Here, the tip guide portion for guiding the reciprocating movement of the bushing tip is formed inside the front end of the insertion tube.

Preferably, the bushing tip and the tip guide portion may be formed with a screw thread for engaging the bushing tip and the tip guide portion, respectively, and guiding the reciprocating movement of the bushing tip.

It may further include a control member that is detachably coupled to the bushing tip through the outflow channel of the insertion tube, and adjusts the entry and exit of the throwing tip in and out of the insertion tube by the screw thread step by step.

Preferably, a sealing member is provided between the outlet flow path of the insertion tube and the tip guide part to block the fluid from flowing into the tip guide part.

On the other hand, according to the present invention, according to the present invention, in the trocar assembly for heat chemotherapy chemotherapy, the insertion tube which is inserted into the inside of the human body to form the outflow passage of the fluid flowing in and out of the human body; And a fluid circulation part provided in the insertion tube and inserted into the human body and having a plurality of outflow holes through which the fluid flows in and out along the outer surface thereof, and guides the fluid into the outflow flow path, and enters and exits the tip of the insertion pipe. A bushing tip formed to be capable of penetrating the skin of the human body and forming a through hole for guiding the insertion of the insertion tube and the fluid circulation portion, and a fastening provided at a rear end of the insertion tube and communicating with the outflow passage of the insertion tube; It is also made by a trocar assembly, characterized in that it comprises a cannula fastening portion formed with a bouillon outflow passage.

Here, the diameter of the outflow channel for the fastening portion is preferably smaller than the diameter of the outflow channel of the insertion pipe.

On the other hand, according to the present invention, according to the present invention, in the surgical device for chemotherapy for heat chemotherapy, the trocar assembly of the above-described configuration, the fluid circulation drive unit for circulating fluid into and out of the human body by the trocar assembly, and A heating unit for heating the fluid flowing out of the trocar assembly by operation of the fluid circulation unit, a temperature sensing unit for sensing a temperature of the fluid circulated by the fluid circulation unit, and the fluid based on a signal of the temperature sensing unit; It is also made by a surgical device for heat chemotherapy characterized in that it comprises a control unit for controlling the operation of at least one of the circulation drive unit and the heating unit.

Specific details of other embodiments are included in the detailed description and drawings.

Therefore, according to the above solution, it is possible to increase the flow in and out cross-sectional area of the fluid by providing a fluid circulation portion formed with a plurality of inlet and outflow holes for entering and exiting the fluid into and out of the human body, thereby circulating the fluid by the surrounding tissues and organs It is possible to provide a trocar assembly that can improve treatment efficiency by solving clogging problems and promoting smooth fluid circulation into and out of the human body, and a surgical device for thermal chemotherapy comprising the same.

In addition, the trocar assembly which can prevent the damage of tissue and organs inside the human body by reducing the speed of the fluid flowing to the fluid circulation by having a cross-sectional area between the inflow and outflow path of the cannula fastening portion and the inlet and outflow path of the insertion tube has a relative difference; It can provide a surgical chemotherapy device including a chemotherapy.

In addition, the trocar tip is stepped in and out in order to penetrate the skin of the human body in a state where the trocar tip protrudes outward, and then transfer the trocar tip to the inside to prevent damage to surrounding tissues and organs due to the trocar tip after steric insertion. There is provided a trocar assembly and a surgical device for heat chemotherapy comprising the same.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

Advantages and features of the present invention, and a configuration and method for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only the embodiments are to make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. For reference, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Prior to the description, the present invention has been described separately in the first and second embodiments, and the same names of the first and second embodiments of the present invention are indicated by the same reference numerals.

1 is a schematic configuration diagram of a surgical device for chemotherapy for thermal chemotherapy according to a preferred embodiment of the present invention, Figure 2 is a perspective view of the trocar assembly according to the first embodiment of the present invention, Figure 3 is shown in Figure III- Sectional drawing of line III, and FIG. 4 is an expanded sectional view of the bushing tip shown in FIG.

As shown in FIG. 1, the surgical device 10 for hyperthermic intraperitoneal chemotherapy (HIPEC) according to the present invention includes a trocar assembly 100, a fluid circulation drive unit 200, and a reservoir 250. The heating unit 300 includes a cannula 350, a switching valve 400, a temperature sensing means 450, a controller 550, and a control panel 600.

The trocar assembly 100 is inserted directly into the human body, as shown in FIGS. 2 to 4, and serves to circulate fluid into and out of the human body. The trocar assembly 100 of the present invention is a trocar tip 110, insertion tube 120, fluid circulation 130, tip guide portion 140, sealing member 150, kenula fastening portion 160, temperature It includes an insertion port 170 and the adjustment member 180 for the sensing means.

The bushing tip 110 penetrates the skin of the human body and forms a through hole in the skin. That is, the bushing tip 110 forms a through hole in the skin of the human body so that the insertion tube 120 and the fluid circulation part 130 may be inserted into the human body. Such, the bushing tip 110 of the present invention includes a bushing tip body 112 and the tip 114.

The bushing tip body 112 forms the appearance of the bushing tip 110, and the tip portion 114 is extended to one side and selectively connected to the adjustment member 180 to be described later. The outer surface of the bushing tip body 112 is formed with a thread along the circumference. The thread formed around the outer surface of the bushing tip body 112 is engaged with the thread formed in the tip guide part 140 to guide the reciprocating movement of the bushing tip body 112.

The tip portion 114 extends from one side of the bushing tip body 112 and is provided in a pointed cone shape so as to penetrate the skin of the human body. Here, the tip portion 114 of the present invention is provided in a conical shape so as to penetrate the skin of the human body, a triangular pyramid or square pyramid shape having a pointed tip may be used.

Insertion tube 120 is inserted into the human body through the through-hole formed by the bushing tip 110. Insertion tube 120 includes an insertion tube body 122 that forms an outflow passage 124 that is a flow path of the fluid. Insertion tube body 122 of the present invention is provided in the shape of a cylindrical tube is hollow in the interior of the fluid inlet and outflow passage 124, a polygonal tube that can be formed in the inlet and outflow passage 124 therein, such as a square cylinder is used It may be. However, the insertion tube 120 is preferably provided in a cylindrical shape in consideration of the resistance of the fluid flowing on the outflow passage 124 and the sealing property of the insertion portion of the trocar assembly 100.

The fluid circulation unit 130 is provided in the insertion tube 120 and inserted into the human body. The fluid circulation unit 130 guides the fluid to the inflow and outflow path 124 of the insertion pipe 120 so that the fluid can flow into and out of the human body. Here, a plurality of outlet holes 132 are formed around the outer surface of the fluid circulation unit 130 to allow the fluid to flow in and out of the human body.

For example, when the fluid flows into the human body, the fresh water of the reservoir 250 to be described later flows on the inflow and outflow path 124, and the fluid flowing on the outflow and inflow path 124 is the fluid circulation part 130. It is fresh water inside the human body through the plurality of outlet holes 132 formed in the). In addition, when the fresh water flows into the human body, the fresh water flows into the outflow channel through the plurality of outflow holes 132 formed in the fluid circulation unit 130. In this way, the fluid is circulated into and out of the human body through the fluid circulation unit 130.

On the other hand, the fluid circulation portion 130 of the trocar assembly 100 according to the first embodiment of the present invention is provided integrally with the insertion pipe 120. That is, the fluid circulation part 130 of the first embodiment of the present invention is provided with a plurality of outlet holes 132 in one region of the insertion pipe 120. At this time, all the areas of the fluid circulation 130 should be inserted into the human body.

The tip guide part 140 of the first embodiment of the present invention is provided at one end of the insertion tube 120, that is, the insertion tube 120 in which the bushing tip 110 is accommodated. The tip guide part 140 accommodates the bushing tip 110 and guides the bushing tip 110 to reciprocate in and out of the insertion pipe 120. Here, the inner diameter of the tip guide portion 140 is formed with a thread engaged with the thread formed around the outer surface of the bushing tip body 112 described above. The thread of the tip guide portion 140 guides the reciprocating movement of the bushing tip 110 into and out of the insertion pipe 120.

The sealing member 150 is disposed between the outflow passage 124 and the tip guide portion 140 of the insertion pipe 120. The sealing member 150 serves to block the inflow and outflow of fluid through the tip guide part 140 when the bushing tip 110 is completely moved into the insertion pipe 120. Sealing member 150 of the present invention may be used, such as rubber packing or O-ring. Of course, the material used as the sealing member 150 is preferably a biocompatible material.

Next, Figure 5 is an enlarged perspective view of the cannula fastening portion and the insertion port for the temperature sensing means of the trocar assembly according to the present invention, Figure 6 is a cross-sectional view of the VI-VI line shown in FIG.

As illustrated in FIGS. 5 and 6, the kenula fastening unit 160 is coupled to the other end of the insertion tube 120 spaced from one end of the insertion tube 120 where the bushing tip 110 is disposed. The cannula fastening unit 160 is disposed between the insertion tube 120 and the cannula 350 to connect the insertion tube 120 and the cannula 350. Kentulas fastening portion 160 of the present invention is connected to the insertion pipe 120 to one side and connected to the kenula 350 to the other side, for the fastening portion communicating with the outflow passage 124 of the insertion pipe 120 therein Includes the cannula fastening body 162 formed with the outflow passage (164).

Here, when comparing the diameter of the outflow passage 164 for the fastening portion and the outflow passage 124 of the insertion pipe 120 formed in the cannula fastening body 162, the diameter of the outflow passage 164 for the fastening portion is the insertion tube It is relatively smaller than the diameter of the outflow channel 124 of 120.

The cross-sectional area according to the diameter of the outflow channel 124 passes through the points A _a and 'a', the velocity of the fluid through the point V _a , and the cross-sectional area according to the diameter of the outflow channel 164 for the fastening portion passes through the points A _b and 'b'. When the velocity of the fluid is V _b , the flow rates Q _a and Q _b of the fluid passing through the points 'a' and 'b' are expressed as follows.

Referring to <Equation>, it can be seen that the flow rate of the fluid passing through the points 'a' and 'b' is the same, and the flow rate is proportional to the product of the velocity and the cross-sectional area. That is, since the cross-sectional area of the fastening part outlet flow path 164 is relatively smaller than the cross-sectional area of the outlet flow path 124 of the insertion pipe 120, the velocity of the fluid passing through the fastening part flow path 164 is the outflow inflow path 124. It is relatively increased rather than the velocity of the fluid passing through.

Therefore, the velocity of the fluid on the outlet flow path 124 of the insertion pipe 120 is reduced relative to the fluid velocity of the entire circulation system through the outlet flow path 164 for the fastening portion, and thus the insertion pipe 120 The velocity of the fluid flowing in and out through the fluid circulation unit 130 in communication with the inflow and outflow path 124 is also reduced, thereby preventing damage to surrounding tissues and organs due to excessive flow rate during the inflow and outflow of the fluid. There is this.

On the other hand, in one region of the cannula fastening unit 160 is provided with a temperature sensing means insertion port 170 into which the temperature sensing means 450 for sensing the temperature of the fluid flowing on the outflow passage 124 can be inserted. do.

Insertion port 170 for the temperature sensing means is an embodiment of the present invention, is fastened in a screw coupling method to one region of the kenula fastening portion 160. Of course, a variety of coupling methods, such as a well-known interference fit method known as a coupling method of the insertion port 170 for the temperature sensing means and the cannula fastening portion 160 may be used. The insertion port 170 for the temperature sensing means of the present invention includes an insertion port body 172 and a leakage barrier film 174.

The insertion port body 172 is coupled to the kenula fastening part 160 and accommodates the temperature sensing means 450. The leakage blocking film 174 is disposed in the insertion port body 172 to directly contact the temperature sensing means 450. Here, the leakage blocking film 174 is made of a non-conductive material such as a polymer so as to block leakage current that may be generated from the temperature sensing means 450 flows into the fluid.

Next, Figure 7 is a front view of the trocar assembly combined with the adjustment member of the present invention, Figure 8 is a first operation perspective view of the trocar tip of the trocar assembly according to the present invention, and Figure 9 is a trocar tip of the trocar assembly according to the present invention 2 is a perspective view of the operation.

As shown in FIGS. 7 to 9, the adjusting member 180 penetrates through the outflow passage 164 for the fastening portion in the cannula fastening portion 160 and the outflow passage 124 in the insertion pipe 120. Removably coupled to the 110, the bushing tip 110 provides a driving force to be introduced into and out of the insertion pipe 120. For example, the adjusting member 180 of the present invention is coupled to the bushing tip 110 through the outflow passage 124, and receives the rotational force by the operator, the bushing tip 110 of the insertion pipe 120 Allows entry and exit from inside and outside

At this time, the adjusting member 180 is stepwise to adjust the entry and exit of the bushing tip 110 to the inside and outside of the insertion pipe 120 by the screw thread formed around the outer surface of the bushing tip body 112 and the tip guide portion 140. Let's do it. That is, the bushing tip 110 is moved to the outside of the insertion pipe 120 by the adjustment member 180 is inserted through the volume of the human body, the bushing tip 110 inserted into the skin of the human body is the adjustment member 180 By being moved back into the insertion tube 120, by the trocar tip 110 after insertion of the trocar assembly 100 it is possible to prevent damage to surrounding tissues and organs.

The fluid circulation drive unit 200 is provided to allow fluid to be circulated into and out of the human body through the trocar assembly 100. The fluid circulation drive unit 200 uses a power unit capable of circulating fluid, such as a pump.

The reservoir 250 is provided to supply and recover the fluid circulated by the fluid circulation drive unit 200. Here, the fluid to be stored in the reservoir 250 may be a mixture of anticancer agents capable of destroying sterilized water and tumors.

The heating unit 300 controls the temperature of the fluid so that the fresh water inside the human body can be maintained at about 42 degrees Celsius. The heating unit 300 according to an embodiment of the present invention may heat the fresh water in the reservoir 250. However, the heating unit 300 may be interposed between the reservoir 250 and the trocar assembly 100 to rapidly heat the fluid flowing from the reservoir 250 to the trocar assembly 100.

The kenula 350 is a tube that connects the reservoir 250, the fluid circulation drive 200, and the trocar assembly 100 to each other in a closed loop. The kenula 350 is made of a flexible material to have flexibility.

The switching valve 400 is disposed between the trocar assembly 100 and the fluid circulation driving unit 200, and serves to open and close the flow path of the fluid flowing into the trocar assembly 100. The switching valve 400 is operated by the control of the controller 550 to be described later. Here, the switching valve 400 is an embodiment of the present invention, but is arranged to open and close the flow path of the fluid, it may not be disposed depending on the type of the fluid circulation drive unit 200.

Next, the temperature sensing means 450 senses the temperature of the fluid and provides the detected signal to the controller 550.

The temperature sensing means 450 of the present invention is inserted into the insertion port 170 for the temperature sensing means of the trocar assembly 100. The temperature sensing means 450 flows into the trocar assembly 100 such that the temperature of the fluid freshwater inside the human body is maintained at about 42 degrees Celsius by the efficient operation of the fluid circulation driving unit 200, the heating unit 300, and the control unit. The sensor senses the temperature of the fluid and transmits the detected signal to the controller 550.

The controller 550 controls the operation of at least one of the fluid circulation driving unit 200 and the heating unit 300 based on the signal of the temperature sensing means 450. In addition, the controller 550 controls the operation of the switching valve 400 based on the signal of the temperature sensing means 450.

For example, when the fluid is fresh water inside the human body, the controller 550 is fresh water inside the human body when the detected signal is lower than 42 degrees Celsius based on the temperature of the fluid detected by the temperature sensing means 450. The operation of the heating unit 300 and the fluid circulation driving unit 200 is controlled to circulate the fluid and the fresh water in the reservoir 250.

That is, the controller 550 is a temperature of the fresh water in the human body to the target value It is to control the operation of the fluid circulation drive unit 200 and the heating unit 300 to be maintained.

The control panel 600 is provided to input a command to the control unit 550 or to display the operation of the surgical chemotherapy device 10 for thermal chemotherapy. The control panel 600 is provided with a display panel on which the fluid temperature sensed by the temperature sensing means 450 can be displayed together with an input button for inputting an operation command.

10 is an exploded perspective view of the trocar assembly according to the second embodiment of the present invention.

As shown in FIG. 10, the trocar assembly 100 according to the second embodiment of the present invention is provided with a detachable insertion tube 120 and a fluid circulation unit 130. Hereinafter, a configuration in which the insertion tube 120 and the fluid circulation unit 130 that are different from the trocar assembly 100 according to the first embodiment of the present invention will be described.

Insertion tube 120 and the fluid circulation 130 is detachably coupled by screwing. At this time, the tip guide portion 140 of the insertion tube 120 is the same as the first embodiment of the present invention, and is screwed with a screw thread formed at one end of the fluid circulation portion 130.

Of course, the tip of the fluid circulation unit 130, such as the tip of the insertion tube 120, is provided with a tip guide portion 140 is formed with a screw thread so that the bushing tip 110 can enter and exit.

As described above, when the insertion tube 120 and the fluid circulation unit 130 are detachably provided to perform the heat chemotherapy treatment, when damage such as a decrease in efficiency of the fluid circulation unit 130 occurs, the fluid There is an advantage that can be reduced by replacing only the circulation unit 130.

Looking at the operation of the operation device 10 for chemotherapy for heat chemotherapy according to a preferred embodiment of the present invention for this configuration as follows.

Prior to the description, the surgical chemotherapy device 10 for heat chemotherapy according to a preferred embodiment of the present invention is composed of the first and second embodiments, the second embodiment compared to the first embodiment is the insertion tube 120 And described as a removable configuration of the fluid circulation unit 130 and the other features are the same, so only the first embodiment will be described in detail.

First, the control member 180 connected to the bushing tip 110 is rotated to advance the bushing tip 110 to the outside of the insertion pipe. At this time, when the bushing tip 110 and the tip guide portion 140 is engaged with the screw thread when the adjustment member 180 is rotated, the bushing tip 110 is stepped out step by step.

When the trocar tip 110 is fully advanced to the outside of the insertion tube 120, the cannula 350 is fastened to the cannula fastening unit 160, and the trocar assembly 100 is inserted at an appropriate position on the patient's body surface. Let's do it. When the penetration by the trocar assembly is completed, the adjusting member 180 is rotated in the reverse direction to completely recover the trocar tip 110 into the insertion tube 120.

In response to an operation signal applied to the control panel 600, the controller 550 controls the switching valve 400, the heating unit 300, and the fluid circulation driving unit 200 so that the fluid contained in the reservoir 250 flows into the human body. To control operation.

Then, the fresh water in the reservoir 250 is flowed on the inlet flow path 124 of the insertion pipe 120 using the 'A' trocar assembly 100 and the fluid on the outlet flow path 124 is a plurality of outlet holes ( 132 is discharged into the human body through the fluid circulation formed.

The fresh water inside the human body is introduced into the 'B' trocar assembly 100 through the outflow hole 132 of the 'B' trocar assembly 100 and then again through the outflow channel 124 of the insertion tube 120. Spill out of the human body. The fluid that flows out of the human body is introduced into the reservoir 250 through the cannula, and then flows back into the human body through the 'A' trocar assembly 100 by the fluid circulation driving unit 200.

On the other hand, when the temperature of the fluid freshwater inside the human body is determined to be less than the target value or more than the target value by the signal sensed by the temperature sensing means 450, the controller 550 is a fluid freshwater inside the human body The operation of the fluid circulation drive unit 200 and the heating unit 300 is controlled to maintain the temperature of the vicinity of the target value.

The fresh water inside the human body is introduced into the trocar assembly 100 through the fluid circulation unit 130 according to the circulation of the fluid. At this time, since the cross-sectional area of the inlet flow passage 164 for the fastening portion 160 of the cannula coupling portion 160 is smaller than the cross-sectional area of the outlet flow passage 124 of the insertion pipe 120, the velocity of the fluid flowing through the fluid circulation 130 Is relatively reduced to prevent an increase in the fluid pressure flowing into the fluid circulation 130.

Then, tissues and organs inside the human body do not come to the fluid circulation 130 by pressure, thereby preventing damage to the tissues and organs around the trocar assembly 100.

Thus, by providing a fluid circulation unit formed with a plurality of inlet and outlet holes for the fluid flow into and out of the human body can increase the flow cross-sectional area of the fluid, thereby improving the treatment efficiency by promoting a smooth fluid circulation into and out of the human body.

In addition, the cross-sectional area of the flow path of the fluid between the cannula fastening portion and the insertion tube is provided to have a relative difference to reduce the speed of the fluid flowing to the fluid circulation portion to prevent damage to tissues and organs inside the human body.

In addition, after the trocar assembly is penetrated into the human body, the trocar tip is completely transferred into the insertion tube, thereby preventing damage to surrounding tissues and organs by the trocar tip.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

1 is a schematic configuration diagram of a surgical chemotherapy device for heat chemotherapy according to a preferred embodiment of the present invention,

2 is a perspective view of a trocar assembly according to a first embodiment of the present invention;

3 is a cross-sectional view of the III-III line shown in FIG.

4 is an enlarged cross-sectional view of the bushing tip shown in FIG.

5 is an enlarged perspective view of a cannula fastening portion and an insertion port for temperature sensing means of a trocar assembly according to the present invention;

6 is a cross-sectional view of the VI-VI line shown in FIG.

7 is a front view of the trocar assembly according to the present invention to which the adjustment member of the present invention is coupled;

8 is a first operation perspective view of the trocar tip of the trocar assembly according to the present invention;

9 is a perspective view of a second operation of the trocar tip of the trocar assembly according to the present invention;

10 is an exploded perspective view of the trocar assembly according to the second embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: trocar assembly 110: trocar tip

120: insertion tube 124: outflow channel

130: fluid circulation 132: outflow hole

140: tip guide portion 150: sealing member

160: Kennula fastening portion 162: flow-through flow path for the fastening portion

170: insertion port for the temperature sensing means 172: leakage blocking membrane

180: adjusting member 200: fluid circulation drive unit

250: reservoir 300: heating

450: temperature sensing means 550: control unit

Claims (15)

A trocar assembly for thermal chemotherapy, An insertion tube which is inserted into an inside of the human body and forms an outflow passage of the fluid flowing into and out of the human body; A trocar assembly provided in the insertion tube and inserted into the human body and including a fluid circulation portion formed with a plurality of outflow holes through which the fluid flows in and out along a circumference of the outer surface to guide the fluid into the outflow channel. The method of claim 1, And the fluid circulation part is integrally provided with the insertion tube in an area adjacent to the tip of the insertion tube. The method of claim 1, The circulating fluid assembly is a trocar assembly, characterized in that detachably coupled to the insertion tube. The method of claim 1, It is provided on the rear end of the insertion tube is exposed when the insertion tube is inserted into the human body, characterized in that it further comprises a cannula (cannula) fastening portion is formed for the outflow passage for the fastening portion communicating with the outflow passage of the insertion tube A trocar assembly. The method of claim 4, wherein The diameter of the outflow passage for the fastening portion is a trocar assembly, characterized in that smaller than the diameter of the outflow passage of the insertion pipe. The method of claim 4, wherein The cannula coupling portion is a trocar assembly, characterized in that the insertion port for the temperature sensing means is inserted into the temperature sensing means for sensing the temperature of the fluid flowing on the flow path for the fastening portion. The method of claim 6, Insertion port for the temperature sensing means is a trocar assembly, characterized in that it comprises a leakage blocking film for blocking the leakage current of the temperature sensing means. The method of claim 1, The trocar assembly is provided to the front end of the insertion tube, the trocar tip further comprises a through-hole penetrating the skin of the human body to form a through hole for guiding the insertion of the insertion tube and the fluid circulation. The method of claim 8, Trocar assembly, characterized in that the tip guide portion for guiding the reciprocating movement of the bushing tip in and out of the insertion tube inside the tip of the insertion tube. The method according to claim 9, The trocar assembly and the tip guide portion, the trocar assembly, characterized in that a screw thread for engaging the tip and the tip guide portion, the guide thread for reciprocating movement is formed. The method of claim 10, And a control member detachably coupled to the bushing tip by penetrating the outflow channel of the insertion pipe, and stepwise adjusting the entry and exit of the throwing tip into and out of the insertion pipe by the screw thread. Trocar assembly. 10. The method of claim 9, Trocar assembly, characterized in that the sealing member is provided between the outlet flow path and the tip guide portion of the insertion tube to block the flow of fluid into the tip guide portion. A trocar assembly for thermal chemotherapy, An insertion tube which is inserted into an inside of the human body and forms an outflow passage of the fluid flowing into and out of the human body; A fluid circulation part provided in the insertion tube and inserted into the human body, and having a plurality of outflow holes through which the fluid flows in and out along a circumference of the outer surface to guide the fluid into the outflow flow path; A bushing tip provided to be capable of entering and exiting the insertion tube and penetrating the skin of the human body to form a through hole for guiding insertion of the insertion tube and the fluid circulation part; A trocar assembly provided at a rear end of the insertion tube and including a cannula fastening portion having a fastening flow passage for a fastening portion communicating with the outflow passage of the insertion tube. The method of claim 13, The diameter of the outflow passage for the fastening portion is a trocar assembly, characterized in that smaller than the diameter of the outflow passage of the insertion pipe. In the surgical chemotherapy device for heat chemotherapy, A trocar assembly according to any one of claims 1 to 14; A fluid circulation drive unit for circulating fluid into and out of the human body by the trocar assembly; A heating unit for heating the fluid flowing out of the trocar assembly by the operation of the fluid circulation unit; Temperature sensing means for sensing a temperature of the fluid circulated by the fluid circulation part; And a control unit for controlling the operation of at least one of the fluid circulation driving unit and the heating unit based on the signal of the temperature sensing means.

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