WO2020017761A1

WO2020017761A1 - Composite catheter

Info

Publication number: WO2020017761A1
Application number: PCT/KR2019/007110
Authority: WO
Inventors: 권승열; 황경원
Original assignee: 웰스메디텍 주식회사; 권승열
Priority date: 2018-07-19
Filing date: 2019-06-12
Publication date: 2020-01-23
Also published as: KR101912745B1

Abstract

The present invention relates to a composite catheter and, more specifically, to a composite catheter wherein respective catheters used for various treatment actions, such as procedures, operations, drug injections, and high-frequency treatments, are integrated into a single usable device. In order to accomplish the above purpose, a composite catheter according to the present invention comprises: a housing comprising a hollow portion formed to penetrate same in the longitudinal direction, a first mounting portion connected to the front end portion of the hollow portion, a second mounting portion connected to the rear end portion of the hollow portion, and a third mounting portion formed along one side of the second mounting portion; a guide having a fitting hole formed to penetrate same in the longitudinal direction, a part of the front end of the guide being coupled to the first mounting portion so as to be exposed to the front end of the housing; an inner body having an introduction hole formed to penetrate same in the longitudinal direction, a first introduction port for a medical device, which is connected to the rear end portion of the introduction hole, and a second introduction port for a drug, which branches off toward the other side of the introduction hole to be connected thereto, the inner body being mounted on the second mounting portion such that the first introduction port and the second introduction port are exposed to the outside of the housing; a connector mounted on the third mounting portion to be exposed to the outside of the housing; a tube made of a flexible material so as to exhibit an elastic restoration force in parallel with the longitudinal direction, the tube having an insertion hole formed to penetrate same in the longitudinal direction and an electrode portion provided on the end portion of the front end thereof and electrically connected to the connector, the tube being fitted into the fitting hole such that, while the electrode portion is exposed to the front end of the guide, the insertion hole is connected to the introduction hole; a guide withdrawing means provided on the first mounting portion so as to move the guide forward/backward; and a tube bending means mounted on the second mounting portion so as to bend the exposed portion of the tube toward one side thereof around an axis defined by the end portion of the front end of the guide.

Description

Compound catheter

The present invention relates to a complex catheter, and more particularly, to a complex catheter for integrating each catheter used in the treatment, such as various procedures, surgery, drug injection, radiofrequency therapy, etc. into a single device, to be used .

A catheter is a tube-shaped medical device that can be inserted into the body.It is a type of examination or procedure using a laser fiber or a high-frequency electrode endoscope, discharge of debris in the body cavity or various organs, aspiration of perfusion fluid for washing, cardiovascular dynamics or the center. There are various types, such as measurement of venous pressure and the infusion of drugs such as contrast agents.

Such a catheter may be found in Korean Patent Nos. 10-1632801, 10-1678069, 10-1801544, 10-2016-0071254, and the like, depending on the use or treatment site. It is composed of various materials, shapes, and structures, and its types are subdivided by uses.

On the other hand, in the medical field, various types of catheter may be needed at the same time. In this case, if the necessary catheter is replaced every time, the speed and accuracy of treatment decreases. The multi-purpose catheter can be integrated into one device. Although there is a need for technology, currently used catheter is limited to its use by enabling only simple drug injection with main single use such as endoscopy or radiofrequency therapy.

In addition, since hospitals have to purchase and store all kinds of catheters individually for each purpose, it is expensive and it is a kind of consumable that needs to be replaced after a certain period (or every time) for hygiene management. Considering that, there is a problem that the problem of cost burden becomes larger.

Accordingly, the present invention has been made to solve the above problems,

The present invention relates to a complex catheter, and more particularly, by integrating each catheter used in various treatments, surgery, drug injection, radiofrequency treatment, etc. into a single device to increase the versatility, the treatment behavior is quickly and accurately It is an object of the present invention to provide a complex catheter which can be carried out, can be easily used by simple and intuitive operation, and is easy to manufacture and can lower the manufacturing cost.

In order to achieve the above object, the composite catheter according to the present invention,

A housing having a hollow portion formed in a longitudinal direction, a first mounting portion connected to a front end portion of the hollow portion, a second mounting portion connected to a rear end portion of the hollow portion, and a third mounting portion formed in one direction of the second mounting portion. ;

A guide having a fitting hole formed through the longitudinal direction and coupled to the first mounting part such that a portion of the front end is exposed to the front end side of the housing;

An injection hole formed in the longitudinal direction, a first injection hole for a medical device connected to a rear end of the injection hole, and a second injection hole for branching connected in the other direction of the injection hole, the first injection hole and the second injection hole An inner body mounted to the second mounting unit to expose the outside of the housing;

A connector mounted to the third mounting part to be exposed to the outside of the housing;

A flexible material having elastic restoring force parallel to the longitudinal direction, the flexible material having an insertion hole formed through the longitudinal direction and an electrode portion electrically connected to the connector at a front end portion, and inserted into the fitting hole to allow the electrode portion to shear the guide. A tube coupled to the insertion hole while being exposed to the side;

Guide extracting means provided in the first mounting part to move the guide forward and backward; And

And a tube bending means provided at the second mounting portion to bend the exposed portion of the tube in one direction with respect to the front end portion of the guide.

And in the composite catheter according to the present invention,

The guide drawing means,

A first forward and backward member coupled to a rear end side of the guide and sliding forward and backward coupled to the first mounting part and having a first thread formed on an outer circumferential surface thereof;

And a first knob screwed to the first screw thread while bidirectionally rotating at an outer circumference of the first mounting portion.

Also in the composite catheter according to the present invention,

The tube bending means,

A second forward and backward member having a second screw thread formed on an outer circumferential surface and two flange portions protruding from the outer circumferential surface while slidingly coupled to the second mounting portion while the tube is penetrated through the second mounting portion;

A second knob screwed to the second thread while bidirectionally rotating at an outer circumference of the second mounting portion;

Each of the conductive metal wires is embedded in the tube in the longitudinal direction and connected to each other, and the front end is connected to one end of the electrode part and the rear end is connected to the connector, and the interruption is connected to one flange of the second forward and backward member. And a second metal wire having a front end connected to the other end of the electrode portion and a rear end connected to the connector, and the interruption being connected to penetrate the other flange portion of the second forward and backward member. It features.

In addition, the composite catheter according to the present invention,

A third knob screwed to an outer circumference of the first inlet and openable;

An airtight ring which is inserted into the first inlet as a flexible material having a predetermined elastic force, and has a detachable hole into which a medical device is inserted. It characterized in that it further comprises a drug backflow prevention means consisting of.

The composite catheter according to the present invention,

Medical devices such as endoscopes, laser fibers, and high frequency electrodes can be selectively inserted and used for basic drug injection.

Intuitive and simple operation makes it easy to change the distance (position) and angle at which the tube is bent,

High frequency current can be easily performed by flowing either + or-poles or anodes of the electrode unit provided at the end of the tube,

Drugs can be prevented from flowing back out of the catheter during leakage into the catheter,

By simplifying the internal structure, it is possible to secure the ease of manufacture of the composite catheter and to reduce the manufacturing cost.

1 is a perspective view of a composite catheter according to the present invention.

2 is an exploded perspective view of the composite catheter according to the present invention.

3 and 4 are side views of the composite catheter according to the present invention.

Since the present invention may be modified in various ways and have various forms, embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In each of the drawings, the same reference numerals, in particular, the tens and ones digits, or the tens, ones and digits, refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.

In addition, in the drawings, the components are exaggerated in size (or thick) in size (or thick) in size (or thin) or simplified in consideration of the convenience of understanding, but the protection scope of the present invention is limited in this way. It should not be.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In the present specification, the first to the second and the second and the like are only referred to to distinguish between the different components, and are not limited to the order of manufacture, and their names are used in the description and the claims. It may not match.

In describing the composite catheter according to the present invention, for the sake of convenience, the non-strict approximate direction reference is specified with reference to FIG. 1, and the direction in which gravity is exerted toward the front and the direction in which gravity acts downward is shown. The front, rear, top, bottom, left, and right directions are set as they are, and the direction is specified in accordance with this standard unless otherwise specified in the detailed description and claims of the invention related to other drawings.

Hereinafter, a composite catheter according to the present invention will be described with reference to the accompanying drawings.

As shown in Figures 1 to 4 (a part of the housing 10 is omitted for convenience of understanding in Figures 1 and 2), the composite catheter according to the present invention is largely the housing 10, guide 20 ), The inner body 30, the connector 40, the tube 50, guide drawing means (GM), tube bending means (TB), drug backflow prevention means (BP).

The housing 10 forms an outer appearance of the catheter, and includes a hollow part 11 penetrating in the longitudinal direction, a first mounting part 12 connected to a front end of the hollow part 11, and the hollow part ( And a second mounting portion 13 connected to the rear end of 11) and a third mounting portion 14 formed in one direction from the second mounting portion 13.

In addition, the housing 10 has a first mounting hole 15 extending in the longitudinal direction to the rear end side of the second mounting portion 13, and the second mounting hole 16 on the other side of the second mounting portion 13. ) Is inclined upward to the rear end side.

The housing 10 is coupled so that the tube 50 is fitted into the hollow part 11 and penetrates through the first and second mounting

parts

12 and 13, and guide extraction means is attached to the first mounting part 12. The first forward and backward member 22 of GM) is slidably coupled forward and backward, and the second forward and backward member 53 of the tube banding means TB can be forward and backward at the front end of the second mounting portion 13. The inner body 30 is fixedly coupled to the rear end of the second mounting portion 13 and the first and second mounting holes 15 and 16 while slidingly coupled.

In addition, the housing 10 is provided with a first exposure hole 12a and a second exposure hole 23a in which a circumferential outer surface is opened and communicated with the first and second mounting

parts

12 and 13. The first knob 23 of the means GM and the second knob 54 of the tube bending means TB are rotatably coupled in both the left and right directions at the outer periphery of each mounting

portion

12, 13.

In addition, the housing 10 has a circular portion 11, while the first and second mounting

portions

12, 13 are formed in a non-circular straight portion of the upper and lower surfaces (or left and right sides), the first The second forward and

backward members

22 and 53 are guided forward and backward without rotation.

Subsequently, the guide 20 adjusts the exposure length and the bending distance (position) of the tube 50 inserted into the body, and includes a fitting hole 21 formed to penetrate in the longitudinal direction, and a portion of the front end of the guide 50 It is coupled to the first mounting portion 12 to be exposed to the front end side of 10).

Unlike the tube 50, which will be described later, the guide 20 has a pipe shape having a hard metal or a synthetic resin material, and is extended to be coupled to the front end of the housing 10.

Specifically, the pipe-shaped guide 20 is a guide drawing means GM,

A first forward and backward member 22 coupled to the rear end side of the guide 20 and slidingly coupled to the first mounting portion 12 to move forward and backward, and having a first thread 22a formed on an outer circumferential surface thereof;

And a first knob 23 screwed to the first thread 22a while bidirectionally rotating at an outer circumference of the first mounting portion 12.

The first forward and backward member 22 has a first flange portion 22b protruding to have a width larger than the diameter of the trunk portion at the rear end side of the trunk portion provided with the first thread 22a, and the first flange portion 22b. A 22b is mounted to linearly move back and forth in the first mounting portion 12, and a first knob 23 mounted to the first exposure hole 12a is fitted into the first screw thread 22a to be screwed together.

Accordingly, when the first knob 23 is rotated in both directions, the rotational movement of the first knob 23 is converted to the forward and backward linear motion of the first forward and backward member 22, so that the guide ( 20 is moved forwards and backwards, through which the length of the tube 50 exposed at the front end of the guide 20 can be arbitrarily adjusted.

Next, the inner body 30 allows the insertion of various medical instruments such as a laser fiber, a high frequency electrode, an endoscope, and the like, and allows the injection of drugs. An injection hole 31 penetrating in the longitudinal direction and the injection hole ( And a first inlet 32 for medical devices connected to the rear end of the insulator 31 and a second inlet 33 for branching which is branched and connected in the other direction of the inlet hole 31. The second inlet 33 is mounted to the second mounting part 13 to be exposed to the outside of the housing 10.

The inner body 30 has an input hole 31 and the first and second input holes 32 and 33 communicate with each other in a 3-way manner, and more preferably, the input hole 31 and the first input hole 32. Is connected in a straight line, the second inlet 33 is connected inclined upward toward the rear end side.

The inlet hole 31 is connected to the tube 50 and functions as a passage through which a medical device is inserted and a channel through which drugs are injected, and the first inlet 32 safely inserts various medical devices in the form of tubes into the body. And guide, the second inlet 33 is used to inject the drug into the body through a syringe or the like.

In addition, the inner body 30 is the drug backflow prevention means (BP),

A third knob 34 screwed to an outer circumference of the first inlet 32 and openable;

It is inserted into the first inlet 32 as a flexible material having a predetermined elastic force, and provided with a detachment hole 35a through which a medical device is inserted, and according to the degree of locking of the third knob 34. The airtight ring 35 in which the degree of compression of the hole 35a is changed is included.

The third knob 34 has a pressing portion 34a protruding forward while the insertion hole for the medical device is formed at the center thereof. When the third knob 34 is tightened, the third ring 34 is closed by the pressing portion 34a. The diameter of the removal hole 35a is narrowed while the compression of 35 is performed, and when the third knob 34 is released, the diameter of the removal hole 35a is widened while the hermetic ring 35 is expanded.

When the medical device is inserted through the first inlet 32 after the drug is injected through the second inlet 33, the drug injected into the tube 50 enters the inlet 31 and the first inlet 32. It can be prevented from leaking through the reverse flow through.

The connector 40 is equipped with an adapter of a high frequency generator when it is necessary to use a medical device such as a high frequency electrode inserted into the first inlet 32 or to emit a high frequency in the body without using a medical device. One of the positive and negative poles is caused to flow through the electrode to be electrically connected to the third mounting part 14 so as to be exposed to the outside of the housing 10.

The connector 40 is electrically connected to the electrode portion 52 through the

metal wires

55 and 56 of the tube bending means TB, which will be described later, so that current flows.

The connector 40 is preferably to be replaced according to the adapter type of the high frequency generator, but it is possible to fix the

metal wires

55 and 56 to the front end of the connector 40 for the current to be supplied. The terminal part 41 protrudes.

Through this, the present invention, in the state in which the high-frequency electrode is inserted into the body into the first inlet 32, the electrode of any one of +,-to the electrode, the electrode portion of the tube 50 through the connector 40 A pole different from the electrode is applied to the 52 to perform a bipolar radio frequency procedure,

Alternatively, an electrode pad attached to the outside of the body by applying one of + and-poles to the electrode portion 52 of the tube 50 through the connector 40 while the high frequency electrode is not inserted into the first inlet 32. A pole different from that of the electrode portion 52 is applied to it, so that a monopolar radio frequency procedure can be performed.

Subsequently, the tube 50 guides the medical apparatus inserted into the first inlet 32 of the inner body 30 to approach the correct treatment site, and injects the drug injected into the second inlet 33 into the treatment site. As a flexible material having an elastic restoring force in parallel in the longitudinal direction, it is provided with an insertion hole 51 formed through the longitudinal direction, and an electrode portion 52 electrically connected to the connector 40 at the front end portion. The insertion hole 51 is coupled to the insertion hole 31 while being inserted into the fitting hole 21 so that the electrode part 52 is exposed to the front end side of the guide 20.

The electrode portion 52 is electrically connected to the connector 40 through the first and

second metal wires

55 and 56 which will be described later. The electrode portion 52 has a pipe shape and extrapolates to the front end of the tube 50. Are combined.

The length of the tube 50 is exposed depending on the length of the guide 20 is drawn out, the exposed portion of the tube 50 is bent in a rounded shape by the tube bending means (TB).

To this end, the tube 50 is a tube banding means (TB),

The tube 50 is coupled through and slides forward and backward to the second mounting portion 13, and includes a second screw thread 53a formed on an outer circumferential surface and both side flange parts 53b protruding from the outer circumferential surface. A second forward and backward member 53,

A second knob 54 screwed to the second screw thread 53a while bidirectionally rotating at an outer circumference of the second mounting portion 13;

Each of the conductive metal wires is embedded in the tube 50 in the longitudinal direction and connected to each other. A front end is connected to one end of the electrode part 52 and a rear end is connected to the connector 40. The first metal wire 55 connected to the second flange portion 53b on one side of the member 53 and the front end are connected to the other end of the electrode portion 52 and the rear end is connected to the connector 40. It includes a second metal wire 56 is connected while being interrupted to penetrate the other second flange portion 53b of the second forward and backward member 53.

Specifically, the second forward and backward member 53 has a second flange portion 53b protruding to have a width larger than the diameter of the trunk portion on the front end side of the trunk portion provided with the second thread 53a, the second The flange portion 53b is mounted to linearly move back and forth in the second mounting portion 13, and a second knob 54 mounted on the second exposure hole 23a is fitted into the second thread 53a to be screwed together. .

In addition, each of the second flange portions 53b includes a through hole 53c formed through the front and rear, and a binding hole 53d formed in communication in a direction orthogonal to the through hole 53c. The first metal wire 55 is fitted into the through hole 53c and the binding hole 53d in the 53b and is bound (bundled) so that the first metal wire 55 is moved forward and backward of the second forward and backward member 53. The second metal wire 56 is pulled or released, and the second metal wire 56 is inserted into the other second flange portion 53b only through the through hole 53c, so that the second metal wire 56 is moved forward and backward. The length change (pulled or unrolled) of (56) should not occur.

In addition, the tube 50 has an interpolation hole 57 that is open so that a part of the interruption portion communicates with the insertion hole 51, and extends from the front inner side surface of each interpolation hole 57 to the front end end of the tube 50. Connected wire insertion holes are formed so that the first and

second metal wires

55 and 56 are longitudinally embedded so as to face each other on both side wall portions of the tube 50,

The front ends of the first and second metal wires 55 and 56 (hereinafter referred to as

connection parts

55a and 56a) are bent outwards while being exposed to the front ends of the wire insertion holes, thereby Electrical connection is made to the electrode portion 52 coupled to the outer surface by soldering or the like.

Accordingly, when the second knob 54 is rotated in both directions, the rotational movement of the second knob 54 is converted to the front-rear linear motion of the second forward / rearward member 53, and the second forward / rearward member 53 is rotated. While reversing, the second metal wire 56 remains unchanged in length, while only the first metal wire 55 is pulled while pressing the one end of the tube 50, more precisely, the electrode portion 52 to the rear side. Pulling, the exposed portion of the tube 50 is bent while having a rounded shape in one direction, wherein the starting point at which the tube 50 is bent becomes the front end of the guide 20.

In addition, when the second forward and backward members 53 move forward, the pulled first metal wire 55 is released to release the pressure pulling the tube 50, and the tube bent by the elastic restoring force of the tube 50 itself. 50 is flattened in the original longitudinal direction.

Therefore, according to the present invention, the distance (position) at which the tube 50 is bent varies depending on the adjustment of the exposure length of the tube 50 through the forward and backward movement of the guide 20, and the second front and rear through the second knob 52. The angle at which the exposed portion of the tube 50 is bent can be freely changed according to the position adjustment of the true member 53.

The present invention provides a complex catheter integrating a single catheter manufactured by each conventional use, such as in-body injection and drug injection, high frequency generation of various medical devices, reducing the manufacturing cost through a single production line, simplifying the structure It provides the effect of securing the ease of limbs, reducing the cost burden of purchasing catheters by type, and has the effect of performing various treatments such as various procedures, surgery, drug injection, and radio frequency treatment quickly and accurately.

In the above description of the present invention, the present invention has been described with reference to the accompanying drawings. However, the present invention can be variously modified, changed, and replaced by those skilled in the art, and such modifications, changes, and substitutions belong to the protection scope of the present invention. Should be interpreted as.

(Explanation of the sign)

10: housing

11: hollow part

12: first mounting portion

13: second mounting portion

14: 3rd mounting portion

15: first installation

16: second mounting hole

20: guide

21: fitting hole

22: first forward and backward member

23: first knob

30: internal body

31: input hole

32: 1st slot

33: second input hole

34: third knob

35: confidential ring

40: connector

41: terminal portion

50: tube

51: insertion hole

52: electrode portion

53: second forward and backward member

54: second knob

55, 56: metal wire

GM: Guide Drawing Method

TB: tube bending means

BP: Drug Backflow Prevention Measures

Claims

A housing having a hollow portion formed in a longitudinal direction, a first mounting portion connected to a front end portion of the hollow portion, a second mounting portion connected to a rear end portion of the hollow portion, and a third mounting portion formed in one direction of the second mounting portion. ;

A guide having a fitting hole formed through the longitudinal direction and coupled to the first mounting part such that a portion of the front end is exposed to the front end side of the housing;

An injection hole penetrating in the longitudinal direction, a first injection hole for a medical device connected to a rear end of the injection hole, and a second injection hole for a malicious object branched in the other direction of the injection hole, and the first injection hole and the second injection hole An inner body mounted to the second mounting unit to expose the outside of the housing;

A connector mounted to the third mounting part to be exposed to the outside of the housing;

A flexible material having elastic restoring force parallel to the longitudinal direction, the flexible material having an insertion hole formed through the longitudinal direction and an electrode portion electrically connected to the connector at a front end, and inserted into the fitting hole so that the electrode portion is sheared by the guide. A tube coupled to the insertion hole while being exposed to the side;

Guide extracting means provided in the first mounting portion to move the guide forward and backward; And

And a tube bending means provided at the second mounting portion to bend the exposed portion of the tube in one direction about the front end of the guide.

The tube bending means,

A second forward and backward member having a second screw thread formed on an outer circumferential surface and two flange portions protruding from the outer circumferential surface while slidingly coupled to the second mounting portion while the tube is penetrated through the second mounting portion;

A second knob screwed to the second screw thread while bidirectionally rotating at an outer circumference of the second mounting portion;

Each of the conductive metal wires is embedded in the tube in the longitudinal direction and is connected to each other. And a second metal wire having a front end connected to the other end of the electrode portion and a rear end connected to the connector, and the interruption being connected to penetrate the other flange portion of the second forward and backward member. Characterized by

Composite catheter.
The method of claim 1,

The guide drawing means,

A first forward and backward member coupled to a rear end side of the guide and sliding forward and backward coupled to the first mounting part and having a first thread formed on an outer circumferential surface thereof;

And a first knob screwed to the first screw thread while bidirectionally rotating at an outer circumference of the first mounting portion.

Composite catheter.
The method according to claim 1 or 2,

A third knob screwed to an outer circumference of the first inlet and openable;

An airtight ring which is inserted into the first inlet as a flexible material having a predetermined elastic force, and includes a detachable hole into which a medical device is inserted. The compression ring of the detachable hole is changed according to the degree of locking of the third knob. Characterized in that it further comprises a drug backflow prevention means,

Composite catheter.