KR102482726B1 - Catheter with temperature sensor - Google Patents

Abstract

A catheter having a temperature sensor is provided. The catheter having the temperature sensor is disposed adjacent to a base tube that is bent and extended, and one end of the base tube, and a first balloon that contracts and expands, and is disposed adjacent to the one end of the base tube. , A second balloon that covers the first balloon and contracts and expands together according to the contraction and expansion of the first balloon, is disposed between the first balloon and the second balloon, and the first balloon expands, It may include a temperature sensor fixed between the inflated first balloon and the inflated second balloon, and a supply module supplying fluid for contracting and expanding the first balloon.

Description

Catheter with temperature sensor {Catheter with temperature sensor}

The present invention relates to a catheter having a temperature sensor, and more particularly, to a catheter having a temperature sensor in which a balloon is disposed at one end of a base tube.

Medical devices refer to instruments, machines, devices, materials, or similar products that are used alone or in combination with humans or animals. According to the Medical Device Act, there are about 50,000 products in 2,100 multi-item industries. In terms of technology, the medical device industry corresponds to an interdisciplinary knowledge industry in which medicine, electricity, electronics, materials, optics, and biotechnology are converged and applied.

The main field of medical devices is the field of diagnostic devices researching and developing products used for the purpose of diagnosing diseases, injuries or disabilities, and therapeutic devices researching and developing machines and instruments used for the purpose of treatment and treatment of diseases, injuries or disabilities. The field of medical supplies that researches and develops medical materials and supplies used for the treatment and treatment of diseases, injuries, or disabilities using metal, plastic, ceramic, or composite materials, using metal, plastic, ceramic, or composite materials There is a field of dental materials that researches and develops products used for the purpose of filling or applying damaged teeth.

Among various medical devices, in particular, technologies related to catheters are gradually increasing. For example, in Republic of Korea Patent Publication No. 10-2016-0035507 (Application No.: 10-2014-0127194, Applicant: Handok Co., Ltd.), a hollow cylinder member, a plurality of electrodes mounted on the cylinder member, one end of the electrode Is connected to, a plurality of power supply lines for supplying power to each of the plurality of electrodes, and the other ends of at least two or more power supply lines among the plurality of power supply lines are connected, one or more power input lines are connected, one Disclosed is a catheter characterized in that it comprises a distribution unit for distributing and outputting the power supplied from the power input line to two or more power supply lines. In addition, technologies related to catheters are continuously being researched and developed.

Republic of Korea Patent Publication No. 10-2016-0035507

One technical problem to be solved by the present invention is to provide a catheter having a temperature sensor with improved temperature sensing efficiency.

Another technical problem to be solved by the present invention is to provide a catheter having a temperature sensor with improved durability.

Another technical problem to be solved by the present invention is to provide a catheter having a temperature sensor that solves problems occurring during the insertion process.

The technical problem to be solved by the present invention is not limited to the above.

In order to solve the above technical problems, the present invention provides a catheter having a temperature sensor.

According to one embodiment, the catheter having the temperature sensor is a base tube that is bent and extended, a first balloon disposed adjacent to one end of the base tube, and contracted and expanded, and the one end of the base tube. Is disposed adjacent to, covers the first balloon, and a second balloon that contracts and expands together according to the contraction and expansion of the first balloon, disposed between the first balloon and the second balloon, the first balloon When the balloon is inflated, it may include a temperature sensor fixed between the inflated first balloon and the inflated second balloon, and a supply module supplying a fluid for contracting and inflating the first balloon.

According to one embodiment, the base tube, a first guide channel passing through the sidewall of the base tube in the direction in which the base tube extends, and spaced apart from the first guide channel, the sidewall of the base tube , A second guide channel penetrating in a direction in which the base tube extends, and the first guide channel is disposed at one end of the first guide channel to communicate the first guide channel and the outside of the base tube. a first guide channel inlet disposed at the other end of the first guide channel and a first guide channel outlet communicating with the outside of the first guide channel and the base tube, wherein the second guide channel comprises the A second guide channel inlet disposed at one end of the second guide channel and communicating the second guide channel with the outside of the base tube, and disposed at the other end of the second guide channel to communicate with the second guide channel and the first guide channel. A second guide channel outlet communicating with the inside of one balloon, wherein the fluid supplied from the supply module is injected from the second guide channel inlet, passes through the second guide channel, and then flows through the second guide channel. An outlet is provided to the first balloon, and the first guide channel outlet is not covered by the first balloon and covered by the second balloon, so that it is blocked from being exposed to the outside of the base tube. The outlet of the second guide channel may be covered with both the first balloon and the second balloon to block exposure to the outside of the base tube.

According to one embodiment, the catheter having the temperature sensor further includes a temperature sensing wire to which the temperature sensor is connected at one end, and a fluid supply tube to which the supply module is connected to one end, wherein the temperature sensing wire is It is disposed in the first guide channel to pass through the first guide channel inlet and the first guide channel outlet, and the one end of the temperature sensing wire is disposed between the first balloon and the second balloon, A temperature sensor is disposed between the first balloon and the second balloon, the fluid supply tube is disposed in the second guide channel to pass through the second guide channel inlet and the second guide channel outlet, and the fluid supply tube is disposed in the second guide channel. The other end of the tube may include being disposed at the outlet of the second guide channel and communicating with the first balloon.

According to one embodiment, the sidewall of the base tube that is curved and extends includes a first region defined as a convex region and a second region defined as a concave region, wherein the first guide channel is the first region of the base tube. passes through a first region, the second guide channel passes through the second region of the base tube, and the temperature sensor comprises the first balloon and the second balloon disposed on the first region of the base tube. It may include contact with.

According to one embodiment, the second balloon may have a thickness smaller than that of the first balloon.

A catheter having a temperature sensor according to an embodiment of the present invention includes a base tube that is bent and extended, a first balloon disposed adjacent to one end of the base tube, and contracted and expanded, and adjacent to the one end of the base tube. Doedoe disposed, covering the first balloon, a second balloon that contracts and expands together according to the contraction and expansion of the first balloon, disposed between the first balloon and the second balloon, the first balloon is inflated In this case, the temperature sensor fixed between the inflated first balloon and the inflated second balloon, and the supply module for supplying fluid for contracting and expanding the first balloon may be included. Accordingly, problems occurring during the process of inserting the temperature sensor into the body (eg, being caught in body tissues during the insertion process, damage to body tissues, etc.) can be solved.

1 is a perspective view of a catheter according to an embodiment of the present invention.
2 is a view specifically showing a base tube included in a catheter according to an embodiment of the present invention.
FIG. 3 is a TT′ cross-sectional view of FIG. 1 .
4 is a diagram illustrating various types of temperature sensors included in a catheter according to an embodiment of the present invention.
5 is a view showing a state in which a syringe is connected to a supply module included in a catheter according to an embodiment of the present invention.
6 is a view specifically showing a balloon included in a catheter according to an embodiment of the present invention.
7 is a cross-sectional view of a balloon included in a catheter according to an embodiment of the present invention.
8 and 9 are views showing a state in which a balloon included in a catheter according to an embodiment of the present invention is inflated.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical spirit of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete, and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

In this specification, when an element is referred to as being on another element, it means that it may be directly formed on the other element or a third element may be interposed therebetween. Also, in the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content.

In addition, although terms such as first, second, and third are used to describe various elements in various embodiments of the present specification, these elements should not be limited by these terms. Therefore, what is referred to as a first element in one embodiment may be referred to as a second element in another embodiment.

Each embodiment described and illustrated herein also includes its complementary embodiments. In addition, in this specification, 'and/or' is used to mean including at least one of the elements listed before and after.

In the specification, expressions in the singular number include plural expressions unless the context clearly dictates otherwise. In addition, the terms "comprise" or "having" are intended to designate that the features, numbers, steps, components, or combinations thereof described in the specification exist, but one or more other features, numbers, steps, or components. It should not be construed as excluding the possibility of the presence or addition of elements or combinations thereof.

In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

1 is a perspective view of a catheter according to an embodiment of the present invention, FIG. 2 is a view specifically showing a base tube included in the catheter according to an embodiment of the present invention, and FIG. 3 is a T-T′ cross-sectional view of FIG. 4 is a view showing various types of temperature sensors included in a catheter according to an embodiment of the present invention, and FIG. 5 is a view showing a state in which a syringe is connected to a supply module included in a catheter according to an embodiment of the present invention, 6 is a view specifically showing a balloon included in a catheter according to an embodiment of the present invention, FIG. 7 is a cross-sectional view of a balloon included in a catheter according to an embodiment of the present invention, and FIGS. This is a view showing a state in which the balloon included in the catheter according to the embodiment is inflated.

1 to 3, the catheter according to an embodiment of the present invention includes a base tube 100, a first balloon 210, a second balloon 220, a temperature sensor 300, and a supply module 400. , a temperature sensing wire 500, and a fluid supply tube 600. Hereinafter, each configuration is described.

The base tube 100 may be bent and extended. According to one embodiment, the base tube 100 may have a tubular tube shape with both ends open. Accordingly, one end and the other end of the base tube 100 may each have an opening. According to one embodiment, the base tube 100 may include a material harmless to the human body. For example, the base tube 100 may include at least one of polyvinylchloride (PVC), urethane, or silicon (Si). The material of the base tube 100 is not limited thereto and may be variously changed.

The base tube 100 may be inserted into the body. Accordingly, the target material can be easily introduced into the body through the base tube 100 . For example, the target substance may be a drug or the like. Specifically, as described above, as both ends of the base tube 100 are open, the target material is injected through one end of the base tube 100, and the injected target material is It can be introduced into the body through the other end of the base tube 100.

The base tube 100 may include a first guide channel 110 and a second guide channel 120 . The first guide channel 110 may pass through the sidewall of the base tube 100 in a direction in which the base tube 100 extends. The second guide channel 120 may also pass through the sidewall of the base tube 100 in the direction in which the base tube 100 extends. However, the first guide channel 110 and the second guide channel 120 may be spaced apart from each other.

The base tube 100 may include a first region 100a and a second region 100b. The first region 100a may be defined as a convex region of the base tube 100 . On the other hand, the second region 100b may be defined as a concave region of the base tube 100 . In this case, the first guide channel 110 may pass through the first area 100a of the base tube. On the other hand, the second guide channel 120 may pass through the second region 100b of the base tube.

The first guide channel 110 may include a first guide channel inlet 110a and a first guide channel outlet 110b. The first guide channel inlet 110a may be disposed at one end of the first guide channel 110 . The first guide channel inlet 110a may communicate with the outside of the first guide channel 110 and the base tube 100 . On the other hand, the first guide channel outlet 110b may be disposed at the other end of the first guide channel 110 . The first guide channel outlet 110b may communicate with the outside of the first guide channel 110 and the base tube 100 .

The second guide channel 120 may include a second guide channel inlet 120a and a second guide channel outlet 120b. The second guide channel inlet 120a may be disposed at one end of the second guide channel 110 . The second guide channel inlet 120a may communicate with the outside of the second guide channel 120 and the base tube 100 . On the other hand, the second guide channel outlet 120b may be disposed at the other end of the second guide channel 120 . The second guide channel outlet 120b may communicate the inside of the second guide channel 120 and the first balloon 210 to be described later.

The temperature sensing wire 500 may be disposed in the first guide channel 110 . Specifically, the temperature sensing wire 500 may be disposed in the first guide channel 110 to pass through the first guide channel inlet 110a and the first guide channel outlet 110b.

Accordingly, one end of the temperature sensing wire 500 is exposed from the inside of the first guide channel 110 to the outside of the guide channel 110 through the first guide channel outlet 110b. can The one end of the first guide channel 110 exposed to the outside of the guide channel 110 may be disposed between a first balloon 210 and a second balloon 220 to be described later.

On the other hand, the other end of the temperature sensing wire 500 is exposed from the inside of the first guide channel 110 to the outside of the first guide channel 110 through the first guide channel inlet 110a. It can be.

The temperature sensor 300 may be connected to the one end of the temperature sensing wire 500 . Alternatively, a device (not shown) for supplying power to the temperature sensor 300 may be connected to the other end of the temperature sensing wire 500 .

As described above, as the one end of the temperature sensing wire 500 is disposed between the first balloon 210 and the second balloon 220 to be described later, the temperature sensor 300 also has a first balloon to be described later. 210 and the second balloon 220 may be disposed.

According to one embodiment, when the base tube 100 is inserted into the body, the temperature sensor 300 may also be inserted into the body. That is, the temperature sensor 300, the first balloon 210, and the second balloon 220, which will be described later, are disposed at one end of the base tube 100, and one end of the base tube 100 Can be inserted into the body. Accordingly, the temperature sensor 300 may measure the temperature inside the body.

According to one embodiment, the temperature sensor 300 may have various shapes. For example, as shown in (a) of FIG. 4 , the temperature sensor 300 may have a cylindrical shape. Alternatively, as shown in (b) of FIG. 4 , the temperature sensor 300 may have a tape shape. The shape of the temperature sensor 300 is not limited thereto and may be variously changed.

The fluid supply tube 600 may be disposed in the second guide channel 120 . Specifically, the fluid supply tube 600 may be disposed in the second guide channel 120 to pass through the second guide channel inlet 120a and the second guide channel outlet 120b.

Accordingly, one end of the fluid supply tube 600 is exposed to the outside of the guide channel 120 from the inside of the second guide channel 120 through the second guide channel inlet 120a. can On the other hand, the other end of the fluid supply tube 600 is exposed from the inside of the second guide channel 120 to the outside of the second guide channel 120 through the second guide channel outlet 120b. It can be.

The supply module 400 may be connected to the one end of the fluid supply tube 600 . On the other hand, the other end of the fluid supply tube 600 may be disposed at the second guide channel outlet 120b and communicate with the first balloon 210 to be described later.

Referring to FIGS. 2 and 5 , a fluid injection device such as a syringe may be connected to the supply module 400 . Accordingly, the supply module 400 may supply fluid to the fluid supply tube 600 or may suck the fluid provided to the fluid supply tube 600 .

Specifically, when the fluid is injected through the supply module 400, the fluid is injected from the second guide channel inlet 120a, passes through the second guide channel 120, and then 2 can be discharged to the guide channel outlet (120b). The fluid discharged through the second guide channel outlet 120b may be provided to the inside of the first balloon 210 to be described later. That is, the supply module 400 may provide the fluid to the inside of the first balloon 210 to be described later through the fluid supply tube 600 . In this case, the first balloon 210 to be described later may be inflated.

On the other hand, when the fluid is sucked through the supply module 400, the fluid flows through the second guide channel outlet 120b and the second guide channel 120 from the inside of the first balloon 210 to be described later. , and pass through the second guide channel inlet 120a sequentially, and may be provided to the supply module 400. That is, the supply module 400 may suck the fluid provided inside the first balloon 210 to be described later through the fluid supply tube 600 . In this case, the first balloon 210 to be described later may be contracted.

Referring to FIGS. 6 to 9 , the first balloon 210 may be disposed adjacent to one end of the base tube 100 . As described above, the first balloon 210 can be contracted and inflated. Accordingly, the first balloon 210 may be made of a material that is easy to contract and expand. For example, the first balloon 210 may include silicon (Si). The material of the first balloon 210 is not limited thereto and may be variously changed.

A second balloon 220 may also be disposed adjacent to one end of the base tube 100 . However, the second balloon 220 may cover the first balloon 210 . Accordingly, the second balloon 220 may contract and expand together with the contraction and expansion of the first balloon 210 . The second balloon 220 may also be made of a material that is easy to contract and expand. For example, the second balloon 220 may include silicon (Si). The material of the second balloon 220 is not limited thereto and may be variously changed.

As described above, when the second balloon 220 is disposed to cover the first balloon 210, the first guide channel outlet 110b is not covered by the first balloon 210, The second balloon 220 may be covered. Accordingly, the temperature sensor 300 may be disposed between the first balloon 210 and the second balloon 220 .

Alternatively, the second guide channel outlet 120b may cover both the first balloon 210 and the second balloon 220 . Accordingly, the fluid supplied from the supply module 400 inflates the first balloon 210, and the second balloon 220 may also be inflated by the expansion of the first balloon 210.

According to one embodiment, as shown in (a) of FIG. 7 , the size of the first guide channel outlet 110b may be larger than the diameter of the temperature sensing wire (not shown). Accordingly, the length of the temperature sensing wire (not shown) exposed between the first balloon 210 and the second balloon 220 from the inside of the first guide channel 110 can be easily controlled. .

According to another embodiment, as shown in (b) of FIG. 7 , the size of the first guide channel outlet 110b may be the same as the diameter of the temperature sensing wire (not shown). Accordingly, the temperature sensing wire (not shown) exposed between the first balloon 210 and the second balloon 220 from the inside of the first guide channel 110, the first balloon 210 And it can be easily fixed between the second balloon (220).

When the first balloon 210 and the second balloon 220 are inflated, the temperature sensor 300 is fixed between the inflated first balloon 210 and the inflated second balloon 220. It can be. Accordingly, the temperature sensor 300 inserted into the body may be fixed without being moved inside the body. As a result, the body temperature can be easily measured through the temperature sensor 300 .

According to one embodiment, the thickness of the first balloon 210 and the thickness of the second balloon 220 may be different from each other. Specifically, the thickness of the second balloon 220 may be thinner than the thickness of the first balloon 210 . In this case, temperature sensing efficiency of the temperature sensor 300 and durability of the first and second balloons 210 and 220 may be improved. That is, the temperature sensing efficiency can be improved by making the thickness of the second balloon 200 disposed adjacent to the body relatively thin. On the other hand, durability can be improved by making the thickness of the first balloon 210 that is directly inflated relatively thick.

According to an embodiment, the thermal conductivity of the first balloon 210 and the thermal conductivity of the second balloon 220 may be different from each other. Specifically, the thermal conductivity of the second balloon 220 may be higher than that of the first balloon 210 . In this case, the temperature sensing efficiency of the temperature sensor 300 may be improved. That is, the temperature sensing efficiency can be improved by making the thermal conductivity of the second balloon 200 disposed adjacent to the body relatively high.

Unlike the catheter according to the above-described embodiment, in the case of a catheter having a temperature sensor disposed on a single balloon without the second balloon 220, the temperature sensor easily gets caught in tissues in the body while being inserted into the body. A problem of not being properly inserted may occur. In addition, in the case of a catheter having a temperature sensor disposed on a single balloon, body tissues may be injured by the temperature sensor while being inserted into the body.

However, the catheter having a temperature sensor according to an embodiment of the present invention is disposed adjacent to the curved and extended base tube 100 and one end of the base tube 100, and the first balloon contracts and expands. 210, which is disposed adjacent to the one end of the base tube 100, covers the first balloon 210, and contracts and expands together according to the contraction and expansion of the first balloon 210. 2 It is disposed between the balloon 220, the first balloon 210 and the second balloon 220, and when the first balloon 210 is inflated, the inflated first balloon 210 and the inflated The temperature sensor 300 fixed between the second balloons 220 and the supply module 400 supplying fluid for contracting and expanding the first balloons 210 may be included. Accordingly, problems occurring during the process of inserting the temperature sensor 300 into the body (eg, getting caught in body tissues during the insertion process, damage to body tissues, etc.) can be solved.

In the above, the present invention has been described in detail using preferred embodiments, but the scope of the present invention is not limited to specific embodiments, and should be interpreted according to the appended claims. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

100: base tube
110: first guide channel
120: second guide channel
210: first balloon
220: second balloon
300: temperature sensor
400: supply module
500: temperature sensing wire
600: fluid supply tube

Claims (5)

a base tube extending by bending;
a first balloon that is disposed adjacent to one end of the base tube and is contracted and expanded;
a second balloon disposed adjacent to the one end of the base tube, covering the first balloon, and contracting and expanding together with the contraction and expansion of the first balloon;
a temperature sensor disposed between the first balloon and the second balloon and fixed between the inflated first balloon and the inflated second balloon when the first balloon is inflated; and
Including a supply module for supplying a fluid for contracting and inflating the first balloon,
The target material is introduced into the body through the inner passage of the base tube,
The temperature sensor is connected to a temperature sensing wire passing through an independent first guide channel spaced apart from the inner passage of the base tube,
The thickness of the second balloon is smaller than the thickness of the first balloon,
The catheter having a temperature sensor, comprising a higher thermal conductivity of the second balloon than the thermal conductivity of the first balloon.
According to claim 1,
The base tube,
the first guide channel penetrating the sidewall of the base tube in a direction in which the base tube extends; and
A second guide channel spaced apart from the first guide channel and penetrating the sidewall of the base tube in a direction in which the base tube extends;
The first guide channel is disposed at one end of the first guide channel to communicate with the first guide channel and the outside of the base tube, and at the other end of the first guide channel And a first guide channel outlet communicating with the outside of the first guide channel and the base tube,
The second guide channel is disposed at one end of the second guide channel and is disposed at a second guide channel inlet communicating the second guide channel and the outside of the base tube, and at the other end of the second guide channel Including a second guide channel outlet communicating the second guide channel and the inside of the first balloon,
The fluid supplied from the supply module is injected at the inlet of the second guide channel, passes through the second guide channel, and is provided to the first balloon through the outlet of the second guide channel;
The first guide channel outlet is not covered by the first balloon and covered by the second balloon, so that it is blocked from being exposed to the outside of the base tube,
The second guide channel outlet is covered with both the first balloon and the second balloon to block exposure to the outside of the base tube.
According to claim 2,
Further comprising a fluid supply tube to which the supply module is connected at one end,
The temperature sensing wire is disposed in the first guide channel to pass through the first guide channel inlet and the first guide channel outlet,
The one end of the temperature sensing wire is disposed between the first balloon and the second balloon, and the temperature sensor is disposed between the first balloon and the second balloon,
The fluid supply tube is disposed in the second guide channel to pass through the second guide channel inlet and the second guide channel outlet;
The other end of the fluid supply tube is disposed at the outlet of the second guide channel and communicates with the first balloon.
According to claim 3,
The sidewall of the base tube that is curved and extends includes a first region defined as a convex region and a second region defined as a concave region,
The first guide channel passes through the first region of the base tube, and the second guide channel passes through the second region of the base tube;
and wherein the temperature sensor is in contact with the first balloon and the second balloon disposed on the first region of the base tube.
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