KR20050059503A - Apparatus for pressing a blood vessel - Google Patents

Abstract

A blood vessel compression device for compressing blood vessels to block blood flow is disclosed. The blood vessel compression device is connected to the penetration tube is inserted into the human tissue to the handle. An inside of the penetrating pipe is disposed with an elastic pin that protrudes to have an arc shape in a state where the penetrating pipe is inserted into the tissue. An actuator is coupled to the handle to receive the pin into the penetrating tube or to protrude out of the penetrating tube. Therefore, blood vessels can be blocked by squeezing blood vessels without cutting the patient's tissue. Since the blood flow is blocked, the heating effect can be increased when heating the tissue lesion, and since the tissue is not incised, recovery is quick after treatment.

Description

Blood vessel compression device {Apparatus for pressing a blood vessel}

The present invention relates to a vascular compression device to be used in surgical operations, and more particularly to a vascular compression device to block blood flow by compressing the blood vessels for the convenience of surgery during surgical operation.

Surgical surgery generally refers to repairing a disease by cutting, slitting, or manipulating skin, mucous membranes, or other tissues with a medical device. Surgical operations include large bleeding invasive surgery and non-blood invasive surgery.

Open surgery refers to open surgery, such as surgery to cover the abdomen, the patient takes a long recovery time after surgery, the likelihood of sequelae or complications are great, and the postoperative pain is large. There is also a problem that requires general anesthesia for invasive surgery. Therefore, there is no need for general anesthesia, and many of the non-invasive operations have been performed to reduce muscle damage, nerve damage, joint damage, bone damage, and quick recovery of the patient after surgery.

Even during the non-invasive surgery, blood vessels may be blocked by compressing blood vessels to prevent internal bleeding or to increase the effectiveness of the surgery. One of the methods of treating tumors is hyperthermia, which increases the temperature of tumors and treats cancer cell tissues. In the case of the fever therapy, the blood flowing around the cancer cell tissue has a problem that the cooling effect does not obtain a sufficient therapeutic effect.

An object of the present invention for solving the above problems is to provide a vascular compression device for increasing the therapeutic effect by blocking the blood flow of the blood vessel by compressing the blood vessel in non-invasive surgery.

In order to achieve the object of the present invention, the present invention is a handle, one end is connected to the handle, the other end is formed to be sharply inserted to insert into the human tissue, and arranged to be movable inside the penetration tube And the protruding tube has an arc shape laterally from the other end of the penetrating tube in a state in which the penetrating tube is inserted into the tissue and has an arc shape in order to block the flow of blood. It is provided to be movable in the same direction as the longitudinal direction of the pin and the elastic material and the elastic pin to pull or press the blood vessel of the, and includes an actuator for receiving the pin into the inside of the penetrating tube or protrudes out of the penetrating tube Provided is a blood vessel compression device.

The blood vessel compression device is mounted to be movable along the outer surface of the penetrating tube when the pin is pressed while pulling the blood vessel, and closely adheres to the epidermis of the human tissue to fix the vessel to remain in a compressed state. And a holder fixed to an outer surface of the penetration tube. In addition, the blood vessel compression device is arranged to be movable by the actuator in the inside of the infiltration pipe, the arc shape laterally with respect to the insertion direction of the infiltration pipe from the other end of the infiltration pipe while the infiltration pipe is pressing the blood vessel Protruding to a different length than the pin to have, and further comprises an electrode for heating the lesion of the tissue and a power supply for providing a high frequency power to the electrode.

The pin is formed of a shape memory alloy formed of nickel titanium and coated with an insulating material of Teflon.

In the blood vessel compression device according to the present invention configured as described above, the blood vessels can be blocked by non-invasive blood using the infiltration tube, thereby blocking blood flow. Therefore, when the treatment of tumors and the like using heat therapy can maximize the effect.

Hereinafter, with reference to the accompanying drawings will be described in detail a blood vessel compression device according to preferred embodiments of the present invention.

1 is a schematic side view for explaining a blood vessel compression device according to a first embodiment of the present invention, Figure 2 is a schematic front view for explaining the blood vessel compression device shown in FIG.

FIG. 3 is a schematic side view for explaining a pin protruding state in the blood vessel compression device shown in FIG. 1, and FIG. 4 is a schematic front view for explaining the blood vessel compression device shown in FIG. 3.

5 is a view for explaining a state in which the blood vessel compression device shown in Figure 3 is fixed to the human tissue.

1 to 5, the blood vessel compression device 100 is connected to the handle 110, one end of the handle 110, and the other end of the penetration tube 120 that is sharply formed for insertion into the human tissue 10. ), Which is arranged to be movable inside the penetration tube 120 and the insertion direction of the penetration tube 120 from the other end of the penetration tube 120 in a state where the penetration tube 120 is inserted into the human tissue 10. Protruding side to have an arc (arc) shape and the longitudinal direction of the pin 130, the penetration tube 120 of elastic material to pull or press the blood vessel 20 of the tissue 10 to block the flow of blood It is provided to be movable in the same direction as and move along the outer surface of the actuator 150 and the penetrating pipe 120 for receiving the pin 130 into the penetrating pipe 120 or projecting out of the penetrating pipe 120. And the pin 120 is pressed while pulling the vessel 20, the vessel 20 is pressed The holder 160 is fixed to the outer surface of the infiltration tube 120 in close contact with the epidermis of the human tissue 10 so as to maintain the foiled state.

The handle 110 is formed of a plastic or metal material, and has a hollow cylindrical structure that is convenient to hold by hand. Although not shown, one end of the handle 110 is preferably formed to be opened by the cap.

The penetration tube 120 is formed of a sus material and has a thin long tube structure. One end of the penetration tube 120 is connected to the handle 120. The other end of the infiltration tube 120 is sharply formed in an oblique shape so as to be easily inserted into the human tissue 10. The length of the penetration tube 120 is 17.5 cm, 25.0 cm, 30.0 cm, etc., but is not limited thereto. The actual length of the penetrating canal 120 depends not only on whether the surgeon chooses laparoscopy, skin penetration or another procedure, but also on the location of the vessel 20 to be compressed, the distance from the skin and accessibility. . The diameter of the penetrating pipe 120 is large enough to have a space that can simultaneously accommodate a plurality of pins 130 to be described below.

A scale is formed on the outer surface of the penetration tube 120. Through the scale of the penetrating pipe 120, it is possible to check how long the penetrating pipe is inserted into the human tissue 10.

The surface of the penetration tube 120 is preferably coated with an insulating material. The blood vessel compression device 100 is often used in parallel with a high frequency treatment device for heating a lesion site using high frequency. By coating the penetration tube 120 with an insulating material, it is possible to prevent the penetration tube 120 and the electrodes of the radiofrequency treatment apparatus from being energized with each other in the human tissue 10. Various materials may be used as the insulating material, but a Teflon material is preferably used. The Teflon material is excellent in insulation, abrasion resistance and chemical resistance can be used for a long time.

The pin 130 is for blocking blood flow by pressing the blood vessel 20 in the human tissue 10, and is disposed to be movable along the infiltration tube 120 inside the infiltration tube 120. The penetration tube 120 protrudes from the other end of the penetration tube 120 as shown in FIG. 3 while being inserted into the human tissue 10. The fin 130 has a straight shape due to the shape of the penetrating pipe 120 when it is located inside the penetrating pipe 120, and the penetrating pipe 120 is a human body when protruding from the other end of the penetrating pipe 120. It has an arc shape laterally with respect to the direction of insertion into the tissue 10.

In order to have the changed shape as described above, the fin 130 is formed of a shape memory alloy having an arc shape. Fin 130 is an arc-shaped shape memory alloy in the state located inside the penetration tube 120, the inner surface of the penetration tube 120 serves as a guide to maintain a straight form. However, when the pin 130 protrudes from the other end of the penetrating pipe 120, the original shape of the pin 130 is restored laterally with respect to the insertion direction of the penetrating pipe 120.

The material of the fin 130 is a nickel-titanium alloy called a nitinol, a nickel-titanium-copper alloy, a nickel-titanium-cobalt alloy, and a copper-zinc-aluminum alloy to produce a shape memory alloy. The shape memory alloy utilizes the same phenomenon as the martensite crystal transformation, which is a kind of phase transformation in the metal solid state, and an alloy exhibiting thermoelastic martensite transformation exhibits shape memory characteristics without exception. In addition, the shape memory alloy may utilize the same phenomenon as the austenite crystal transformation during phase transformation in the solid state of metal.

In the case of martensitic transformation, the shape memory alloy has a permissible strength (kgf) of 196 (Ni-Ti alloy), 294 (Ni-Ti-Co alloy), and 68 to 98 (Ni-Ti-Cu alloy), respectively, depending on the alloy type. / mm ㅂ) and elastic modulus (kgf / mm ㅂ) of 7845 ~ 9800 (Ni-Ti alloy), 9800 ~ 13730 (Ni-Ti-Co alloy), and 0 ~ 4900 (Ni-Ti-Cu alloy), respectively. Have

In the case of austenite transformation, the shape memory alloy is allowed in the range of 390 ~ 785 (Ni-Ti alloy), 490 ~ 980 (Ni-Ti-Co alloy), and 390 ~ 785 (Ni-Ti-Cu alloy), respectively, depending on the alloy type. Elasticity (kgf / mm ㅂ) of 17650 ~ 21575 (Ni-Ti alloy), 25500 ~ 28440 (Ni-Ti-Co alloy), 19615 ~ 27460 (Ni-Ti-Cu alloy) with strength (kgf / mm ㅂ) Has

It is preferable that the protruding length of the pin 130 protrudes about 3 cm, and the pin 130 must have sufficient strength to withstand the force applied to block the blood flow of the blood vessel 20. The number of the pins 130 may be variously formed depending on the case, it is preferable that about four are provided.

The fin 130 is coated with an insulating material like the penetration tube 120. The blood vessel compression device 100 is often used in parallel with a high frequency treatment device for heating a lesion site using high frequency. By coating the fin 130 with an insulating material, it is possible to prevent energization between the fin 130 and the electrode of the radiofrequency treatment apparatus in the human tissue 10. Various materials may be used as the insulating material, but a Teflon material is preferably used.

The pin 130 protruding from the other end of the infiltration tube 120 compresses the blood vessel 20 in the human tissue 10 to block blood flow. As a method of pressing the blood vessel 20 by the pin 130, first, the handle 110 is pushed along the insertion direction of the infiltration tube 120 so that the pin 130 presses the blood vessel 20. In this case, as shown in the drawing, the fins 130 are disposed to be radially spaced apart from each other by the same distance with respect to the penetration pipe 120.

In addition, as shown in FIG. 5, the handle 110 is pulled along the direction opposite to the insertion direction of the penetration tube 120 so that the pin 130 presses the blood vessel 20. In this case, one pin 130 is provided, or when provided with a plurality of pins are preferably provided in one direction. When the pins 130 are disposed to be radially spaced apart from each other, the pins 130 having an arc shape are pulled around the vessel 20 when the handle 110 is pulled in the direction opposite to the insertion direction of the penetration tube 120. Damage to the tissue as well as the tissue spaced apart from the vessel 20. Therefore, by providing one pin 130 or a plurality of to be driven in one direction it is possible to minimize the damage of the healthy tissue spaced apart from the blood vessel 20.

In consideration of the location of the tissue 10 and the blood vessel 20 inside the human body, it is preferable to use any one of the above two methods.

The actuator 150 is inserted through one end opened from the handle 110 having a hollow cylindrical structure, and is provided to enable linear reciprocating motion along the insertion direction of the penetration tube 120. In other words, the actuator 150 is a piston movement inside the handle (110).

The actuator 150 is divided into a portion inserted into the handle 110 and a portion protruding outside the handle 110. The actuator 150 is limited in the moving range by the space inside the handle 110. A portion of the actuator 150 protruding outside the handle 110 is larger than the radius of the handle 110 so as to be easily gripped by the operator. Oval structure with large long radius. Thus facilitating the piston movement of the actuator 150.

Since the actuator 150 is connected to the pin 130, the pin 130 is accommodated into the penetration tube 120 or protrudes outside the penetration tube 120 according to a linear reciprocating motion. Therefore, the protruding length of the pin 130 can be adjusted by adjusting the size of the inner space of the handle 110.

The holder 160 is mounted to be movable along the outer surface of the penetration tube 120. The holder 160 is in a state in which the pin 130 is pressed against the epidermis of the human tissue 10 when the pin 130 is pressed while pulling the blood vessel 20, and is fixed to the outer surface of the infiltration tube 120 to press the blood vessel 20. Keep it.

Since the vessel 160 is not only maintained in a compressed state by the holder 160, the vessel compression device 100 itself is also fixed, and thus the operator frees the hand that has fixed the vessel compression device 100. Therefore, the operator can use two hands to perform the procedure more accurately, and can also perform other tasks.

By using the blood vessel compression device 100, blood pressure may be blocked by cutting the blood vessel 20 without cutting the tissue 10 of the patient.

FIG. 6 is a schematic side view for explaining a blood vessel compression device according to a second preferred embodiment of the present invention, FIG. 7 is a schematic front view for explaining the blood vessel compression device shown in FIG. 6, and FIG. 8 is FIG. 6. It is a schematic back view for demonstrating the vascular compression device shown in FIG.

FIG. 9 is a schematic side view for explaining the protruding state of the pin and the electrode in the blood vessel compression device shown in FIG. 6, and FIG. 10 is a schematic front view for explaining the blood vessel compression device shown in FIG. 6.

6 to 10, the blood vessel compression device 200 is connected to the handle 210, one end of the handle 210, and the other end of the penetration tube 220 sharply formed for insertion into the human tissue 10. ), Which is arranged to be movable inside the penetration tube 220 and is inserted into the human tissue 10 with respect to the insertion direction of the penetration tube 220 from the other end of the penetration tube 220. Protruding to have an arc (arc) to the side and to the inside of the penetrating member 220, the pin 230 of the elastic material to pull or press the blood vessel 20 of the tissue 10 to block the flow of blood It is arranged to be movable like the pin 230, protrudes from the other end of the penetrating tube 220 to have an arc shape laterally with respect to the insertion direction of the penetrating tube 220, the pin 230 is a blood vessel 20 The electrode 240 for heating the lesion of the tissue 10 during compression, the same as the longitudinal direction of the penetration tube 220 It is provided to be movable in the direction and the outer surface of the actuator 250, the penetration tube 220 for accommodating the pin 230 and the electrode 240 into the penetration tube 220 or protrudes out of the penetration tube 220 When the pin 120 is pushed while pulling the vessel 20, the vessel 20 is pressed against the epidermis of the human tissue 10 to fix the vessel 20 in a compressed state. And a power supply unit 270 for providing high frequency power to the holder 160 and the electrode 240 fixed to the outer side of the panel.

Referring to the drawings, the blood vessel compression device 200 according to the second embodiment is the same as the first embodiment described above except for the electrode 230, the actuator 250 and the power supply unit 270.

Therefore, descriptions of the remaining parts except for the electrode 230, the actuator 250, and the power supply unit 270 will be omitted since they overlap.

The fin 230 is coated with an insulating material in the same manner as in the first embodiment, but the reason is to prevent energization with the electrode 240, which will be described later, and the insulating material is the same as in the first embodiment. This is preferably used.

The electrode 230 is for heating the lesion site of the human tissue 10, and is disposed inside the infiltration tube 220 to be movable together with the pins 230 or each, and the infiltration tube 220 is disposed in the human tissue ( Protrudes from the other end of the penetration tube 220 in the state inserted in 10). Like the fin 230, the electrode 230 has a straight line shape when it is located inside the penetration tube 220, and when the electrode 230 protrudes from the other end of the penetration tube 220, the electrode 230 has an insertion direction of the penetration tube 220. It has an arc shape laterally.

In order to have the changed shape as described above, the electrode 240 is formed of a shape memory alloy having an arc shape similarly to the fin 230. The electrode 240 is a shape memory alloy of an arc shape, so that the inner surface of the penetration tube 220 serves as a guide in the state of being positioned inside the penetration tube 220 to maintain a straight shape. However, when the electrode 240 protrudes from the other end of the penetration tube 220, the arc shape, which is the original shape, is laterally restored to the insertion direction of the penetration tube 220. As the material of the electrode 240, a nickel-titanium alloy, a nickel-titanium-copper alloy, a nickel-titanium-cobalt alloy, and a copper-zinc-aluminum alloy are used to manufacture the shape memory alloy. Description of specific materials and properties of the electrode 240 is omitted since it is the same as the fin 120 in the first embodiment.

The protruding length of the electrode 240 may vary depending on the location or size of the lesion, but it is usually preferable to be longer than the protruding length of the fin 230. The number of electrodes 240 may be variously formed, but preferably about two are provided.

Although the electrode 240 is illustrated as a shape memory alloy having an arc shape in the drawing, it may be a metal material having a general straight shape.

In addition, although not shown in the drawing, a sensor capable of measuring temperature may be provided at the end of the electrode 240. The sensor may be provided to check the heating temperature of the lesion tissue heated by the electrode 240.

The power supply unit 270 generates power from the electrode 240 to supply power to heat the lesion. A high frequency power is mainly used as the power source of the power supply unit 270, and in addition, microwaves, lasers, and the like may be used.

Actuator 250 is similar to the first embodiment, but is connected to the electrode 240 at the end of the actuator 250 protruding outward of the handle 210 and the power connection 280 for connecting to the power supply unit 270 is It is provided. The power connection unit 280 is connected by a cable extending from the power supply unit 280.

When the pin 230 and the electrode 240 protrude together from the penetrating tube 220, the actuator 250 is integrally formed. However, in the case where the fins 230 and the electrodes 240 may protrude from the penetrating tube 220, respectively, the actuator 250 is connected to the fins 230 and the pins 230 protrude from the penetrating tube 220. It is composed of a portion to accommodate the inside of the penetration tube 220, and a portion connected to the electrode 240 to protrude from the penetration tube 220 or to accommodate the inside of the penetration tube 220. In this case, of course, the power connection 280 is connected to the actuator 250 connected to the electrode 240.

The blood vessel compression device 200 includes a pin 230 capable of compressing the blood vessel 20 to block blood flow and an electrode 240 capable of heating a lesion site of the tissue 10. Therefore, in the state where the blood flow of the blood vessel 20 is blocked by using the fin 230, the lesion part of the tissue 10 may be heated to a higher temperature in a wider range using the electrode 240.

Increasing the temperature of the lesion site of the tissue 10, such as a tumor, is very helpful for treating cancer cell tissue. The cellular effects of pyrotherapeutic therapy on cancer cell tissues include, firstly, changes in permeability or fluidity of the cell membrane (or nuclear membrane), secondly, lysosomal division of the cytoplasm that causes the excretion of digestive enzymes, and third, cellular respiration and the synthesis of DNA or RNA. Protein heat damage, and possibly the possibility of stimulating the immune system has been proposed.

Looking at the process of the heat generated from the electrode 240, high frequency alternating current flows from the electrode 240 to the tissue due to the high frequency disorder. As ions attempt to follow a change in the direction of alternating current, agitation of ions occurs in the terminal tissue region of electrode 240. This generates heat due to friction, so that the tissue 10 near the electrode 240 instead of the electrode 240 becomes a main cause of heat generation. Thermal generation of tissue 10 is generated while current passes through the electrical resistance provided by tissue 10. At this time, the larger the resistance, the more heat is generated.

Since the current extends radially from the end of the electrode 240, the current density appears highest at the end of the electrode 240 and becomes lower as it moves away from the end of the electrode 240. Therefore, the heating effect is greatest at the electrode 240, and decreases as the distance from the electrode 240 increases.

As described above, the blood vessel compression device according to the preferred embodiment of the present invention may block blood flow by compressing blood vessels without cutting the tissue of the patient using the infiltration tube and the pin. The electrode can also be used to treat tissue lesions by heating. Since the blood flow of the blood vessels is blocked, the heating effect can be increased when heating the tissue lesion, and since the tissue is not incised, recovery after treatment is quick.

While the foregoing has been described with reference to preferred embodiments of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

1 is a schematic side view for explaining a blood vessel compression device according to a first embodiment of the present invention.

FIG. 2 is a schematic front view for explaining the blood vessel compression device shown in FIG. 1.

FIG. 3 is a schematic side view for explaining a state where the pin protrudes in the blood vessel compression device shown in FIG. 1.

FIG. 4 is a schematic front view for explaining the blood vessel compression device shown in FIG. 3.

FIG. 5 is a view for explaining a state in which the blood vessel compression device shown in FIG. 3 is fixed to human tissue.

Figure 6 is a schematic side view for explaining the blood vessel compression device according to a second embodiment of the present invention.

FIG. 7 is a schematic front view for describing the blood vessel compression device shown in FIG. 6.

FIG. 8 is a schematic rear view for explaining the blood vessel compression device shown in FIG. 6.

FIG. 9 is a schematic side view for explaining a state in which the pin and the electrode protrude from the blood vessel compression device shown in FIG. 6.

FIG. 10 is a schematic front view for explaining the blood vessel compression device shown in FIG. 6.

Explanation of symbols on main parts of drawing

10: human tissue 20: blood vessel

110: handle 120: penetration tube

130: pin 150: actuator

160: Holder 210: Handle

220: penetration tube 230: pin

240: electrode 250: actuator

260: holder 270: power supply

280: power connection

Claims (7)

handle; One end is connected to the handle, the other end is formed in the sharply penetrating tube for insertion into the tissue; Arranged to be movable in the inside of the penetrating tube, and protrudes from the other end of the penetrating tube in a state in which the penetrating tube is inserted into the tissue to have an arc shape laterally with respect to the insertion direction of the penetrating tube, An elastic pin to pull or press the blood vessel of the tissue to block blood flow; And It is provided so as to be movable in the same direction as the longitudinal direction of the penetrating pipe, the vessel compression device characterized in that it comprises an actuator for accommodating the pin into the penetrating pipe or protrudes out of the penetrating pipe. The epidermis of the human tissue according to claim 1, wherein the pin is movably mounted along the outer surface of the penetrating tube, and when the pin is pressed while pulling the blood vessel, the blood vessel is fixed to the epidermis of the human tissue to maintain the compressed state. The blood vessel compression device further comprises a holder fixed to the outer surface of the infiltration tube. The blood vessel compression device according to claim 1, wherein the pin is formed of a shape memory alloy material. The vessel compression device according to claim 3, wherein the pin is made of nickel titanium alloy, nickel titanium cobalt alloy, nickel titanium copper alloy or copper zinc aluminum alloy. According to claim 1, Arranged so as to be movable by the actuator in the inside of the penetrating tube, arcing laterally with respect to the insertion direction of the penetrating tube from the other end of the penetrating tube while the penetrating tube presses the blood vessel Protruding by a length different from that of the pin to have an electrode, the electrode for heating a lesion of the tissue; And And a power supply unit for providing high frequency power to the electrode. 6. The vascular compression device of claim 5, wherein the pin is coated with an insulating material. 7. The vessel compression device of claim 6, wherein the insulation material is Teflon.