KR101912745B1 - Multi catheter - Google Patents

Abstract

The present invention relates to a multi-catheter capable of integrating each catheter into one device. To achieve the purpose, according to the present invention, the multi-catheter includes: a housing including a hollow part penetrated in a longitudinal direction, a first installation part, a second installation part, and a third installation part; a guide combined with the first installation part to make a part of the front end exposed to the front end of the housing; an internal body including first and second inlets, and installed in the second installation part to make the first and second inlets exposed outside the housing; a connector installed in the third installation part to be exposed outside the housing; a tube combined to connect the insertion hole with the inlet; a guide withdrawal unit moving the guide forward and backward; and a tube bending unit bending the exposed part of the tube in one direction.

Description

Composite catheter {MULTI CATHETER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite catheter, and more particularly, to a composite catheter that allows each catheter used for a therapeutic operation such as various procedures, operations, drug infusion, .

A catheter is a tubular medical instrument that can be inserted into the body. It is used for various tests and procedures using a laser fiber or a high frequency electrode endoscope, a discharge of fluid in the body cavity or various organs, aspiration of a perfusion fluid for cleaning, Measurement of venous pressure and the like, injection of a drug such as a contrast agent into the body, and the like.

Such a catheter can be used as a catheter according to its use or treatment site, as can be seen in the registered patent 10-1632801, the registered patent 10-1678069, the registered patent 10-1801544, the patent 10-2016-0071254, It is composed of various materials, shapes, and structures, and its kind is divided into uses.

On the other hand, in the medical field, various types of catheters are needed at the same time. In such a case, if the necessary catheters are replaced each time, the speed and accuracy of the treatment are lowered. As a result, However, the presently used catheter is limited in its use because it allows only a simple drug injection with a main single use such as an endoscopic or high frequency treatment, and supplementally.

In addition, hospitals are required to purchase all kinds of catheters separately for each use, so they are expensive, and as a consumable to replace after regular use (or every time) for hygiene management, expensive catheters should be periodically repurchased and replaced There is a problem that the problem of the cost burden becomes greater.

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

The present invention relates to a composite catheter, and more particularly, to a catheter for a catheter used for a catheter used for various procedures, surgery, drug infusion, high frequency treatment, etc., It is an object of the present invention to provide a complicated catheter which can be easily used by a simple and intuitive operation and which can be easily manufactured and can be manufactured at a low cost.

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

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 penetratingly formed in the longitudinal direction and coupled to the first mounting portion such that a front end portion of the front end is exposed to the front end side of the housing;

A first input port for the medical device connected to the rear end of the input hole and a second input port for the voicide that is branched and connected to the other end of the input hole, the first input port and the second input port, An inner body mounted to the second mounting portion so as to be 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 flexible material having an elastic restoring force parallel to a longitudinal direction, comprising: an insertion hole formed in a longitudinal direction of the insertion hole; and an electrode portion electrically connected to the connector at a front end portion, the electrode portion being inserted into the insertion hole, A tube coupled to the insertion hole to be connected to the injection hole while being exposed to the side of the insertion hole;

Guide pull-out means provided in the first mounting portion for moving the guide back and forth; And

And tube bending means provided at the second mounting portion for bending the exposed portion of the tube in one direction with the front end of the guide as an axis.

In the composite catheter according to the present invention,

The guide pull-

A first forward / backward member coupled to a rear end of the guide and slidably coupled to the first mounting portion and having a first thread formed on an outer circumferential surface,

And a first knob screwed to the first screw thread while being rotated in both directions on the outer periphery of the first mounting portion.

Also in the composite catheter according to the present invention,

Wherein the tube bending means comprises:

A second threaded member formed on an outer circumferential surface of the tubular member, the tubular member being slidably coupled to the second mounting unit through the tube, the tubular member having a flange portion protruding from an outer circumferential surface thereof,

A second knob which is bi-directionally rotated on an outer periphery of the second mounting portion and is screwed to the second screw thread,

Each of which is connected to the tube so as to be coupled to one flange portion of the second forwardly-facing member while the front end thereof is connected to one end of the electrode portion and the rear end thereof is connected to the connector, 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 such that the stop is connected to the other flange portion of the second forwardly retracting member .

In the composite catheter according to the present invention,

A third knob which is screwed to the outer periphery of the first input port and is openable and closable,

And a deformation hole which is inserted into the first input port and into which the medical instrument is inserted so that the degree of compression of the deformation hole is changed according to the degree of locking of the third knob, And a backflow prevention means for preventing backflow of the drug.

In the composite catheter according to the present invention,

A medical device such as an endoscope, a laser fiber, and a high-frequency electrode can be selectively inserted in accordance with needs,

It is possible to easily change the distance (position) and angle at which the tube is bent by intuitive and simple operation,

A high-frequency current can be applied to the electrode portion provided at the end portion of the tube by easily flowing a positive electrode or a negative electrode,

It is possible to prevent a drug or the like from leaking back to the outside of the catheter during insertion of the medical instrument into the body,

Thereby simplifying the internal structure and securing the ease of manufacturing the composite catheter and reducing the manufacturing cost.

1 is a perspective view of a composite catheter according to the present invention;
2 is an exploded perspective view of a composite catheter according to the present invention.
Figures 3 and 4 are side views of a composite catheter according to the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

 In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, 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 to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the composite catheter according to the present invention, for the sake of convenience, an unstructured approximate direction reference may be specified with reference to FIG. 1, in which the direction in which the electrode part 52 is exposed is forward and the direction in which gravity acts is the downward direction And directions are specified in accordance with these standards unless otherwise specified in the detailed description and claims of the invention relating to other drawings.

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

1 to 4 (a part of the housing 10 is omitted for the sake of convenience in FIGS. 1 and 2), the composite catheter according to the present invention comprises a housing 10, a guide 20 The inner body 30, the connector 40, the tube 50, the guide pull-out means GM, the tube bending means TB and the drug backflow prevention means BP.

The housing 10 forms an outer surface of the catheter and includes a hollow portion 11 formed in a longitudinal direction and a first mounting portion 12 connected to a front end of the hollow portion 11, A second mounting portion 13 connected to the rear end of the first mounting portion 11 and a third mounting portion 14 formed in the first mounting portion 13 in one direction.

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 a second mounting hole 16 Is connected to the rear end side in an upward sloping manner.

In the housing 10, the tube 50 is inserted into the hollow portion 11 to be inserted through the first and second mounting portions 12 and 13, and the guide drawing means And the second forwardly-moving member 53 of the tube bending means TB is provided at the front end of the second mounting portion 13 so as to be movable forward and backward And 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.

The housing 10 is provided with a first exposure hole 12a and a second exposure hole 23a which are opened and connected to the first and second mounting portions 12 and 13 in the circumferential direction, The first knob 23 of the means GM and the second knob 54 of the tube bending means TB are rotatably coupled in the left and right directions on the outer periphery of the respective mounting portions 12,

The first and second mounting portions 12 and 13 of the housing 10 are formed into a circular shape and the upper and lower surfaces (or left and right side surfaces) of the first and second mounting portions 12 and 13 are formed as non-circular straight portions, , The second forward / backward member (22) (53) is guided back and forth without rotating.

The guide 20 is provided with a fitting hole 21 formed to penetrate in the longitudinal direction by adjusting the exposure length and bending distance (position) of the tube 50 inserted into the body, 10 so as to be exposed to the front end side of the first mounting portion 12.

Unlike the tube 50 described later, the guide 20 is formed into a pipe shape having a hard metal or a synthetic resin material and is extended and joined to the front end side of the housing 10.

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

A first forward retracting member 22 coupled to a rear end side of the guide 20 and slidably coupled to the first mounting portion 12 and having a first thread 22a formed on an outer peripheral surface thereof,

And a first knob 23 screwed to the first screw thread 22a while rotating in a bi-directional manner on the outer periphery of the first mounting portion 12. [

The first forward-backward member 22 is provided with a first flange portion 22b protruding from the rear end side of the body portion having the first thread portion 22a so as to have a width larger than the diameter of the body portion, A first knob 23 mounted on the first exposure hole 12a is inserted into the first screw thread 22a and screwed into the first screw hole 22a.

Accordingly, when the first knob 23 is rotated in both directions, the rotational motion of the first knob 23 is converted into the linear movement of the first forward / backward member 22, 20 can be moved forward and backward, and the length of the tube 50 exposed to the front end side of the guide 20 can be arbitrarily adjusted.

Next, the inner body 30 allows various medical instruments such as a laser fiber, a high-frequency electrode, an endoscope, and the like to be inserted into the body and to be loaded with medicines. The inner body 30 includes a charging hole 31 formed in the longitudinal direction, And a second inlet port 33 connected to the other end of the inlet hole 31 and connected to the second inlet port 32. The first inlet port 32 and the second inlet port 33 are connected to the rear end of the inlet 31, And is mounted to the second mounting portion 13 such that the second input port 33 is exposed to the outside of the housing 10.

The inner body 30 is connected to the injection hole 31 and the first and second injection ports 32 and 33 in a three-way manner, And the second input port 33 is connected to the rear end side in an upward sloping manner.

The insertion hole 31 functions as a passage through which the medical instrument is inserted and a flow path through which the medicine is injected. The first inlet 32 is used to securely insert various medical instruments in the form of a tube into the body And the second inlet 33 is used for injecting the drug into the body through a syringe or the like.

Further, the inner body 30 is the drug backflow prevention means BP,

A third knob 34 screwed on the outer periphery of the first input port 32 and openable and closable,

(35a) that is inserted into the first insertion port (32) and is inserted through the medical instrument and is inserted into the first insertion port (32) by a flexible material having a predetermined elasticity, Milling 35 in which the degree of compression of the start hole 35a is changed.

The third knob 34 has a pressing portion 34a protruding forward while an insertion hole for a medical instrument is formed at the center of the third knob 34. When the third knob 34 is tightened by the pressing portion 34a, The diameter of the deaerating hole 35a is narrowed while the diameter of the deaerating hole 35a is expanded while the diameter of the deeper hole 35a is increased by unscrewing the third knob 34. [

When the medical instrument is inserted through the first input port 32 after the drug is injected through the second input port 33, the drug injected into the tube 50 passes through the injection hole 31 and the first input port 32 So that it can be prevented from leaking back through.

When the connector 40 needs to use a medical instrument such as a high-frequency electrode inserted into the first inlet 32, or when it is necessary to radiate a high frequency into the body without using a medical instrument, the connector of the high- + And - are electrically connected to the electrode unit so as to be electrically connected to the third mounting unit 14 so as to be exposed to the outside of the housing 10.

The connector 40 is electrically connected to the electrode part 52 through the metal wires 55 and 56 of a tube bending unit TB described later and current flows.

It is preferable that the connector 40 be replaceable depending on the adapter type of the high frequency generator. However, in order to allow the current to flow, the metal wires 55 and 56 are fixed to the front end of the connector 40 The terminal portion 41 is protruded.

In the present invention, one of positive and negative electrodes is attached to the electrode while the high-frequency electrode is inserted into the body through the first input port 32, A bipolar high-frequency procedure can be performed by applying a different pole to the electrode 52,

The positive electrode or the negative electrode is attached to the electrode portion 52 of the tube 50 through the connector 40 in a state in which the high frequency electrode is not inserted into the first input port 32, The other electrode is connected to the electrode unit 52, and a monopolar high-frequency operation can be performed.

The tube 50 guides the medical instrument inserted into the first inlet 32 of the inner body 30 to approach the correct treatment site while allowing the drug injected into the second inlet 33 to be injected into the treatment area. (51) formed in a longitudinal direction thereof and an electrode part (52) electrically connected to the connector (40) at a front end thereof, the elastic material having elastic restoring force parallel to the longitudinal direction And the insertion hole 51 is connected to the injection hole 31 while the electrode part 52 is inserted into the insertion hole 21 and exposed to the front end side of the guide 20.

The electrode unit 52 is electrically connected to the connector 40 through first and second metal wires 55 and 56 to be described later and is formed in a pipe shape and is inserted into the front end portion of the tube 50, .

The exposed length of the tube 50 varies according to the length of the guide 20 and 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 bending means TB,

A second thread 53a formed on the outer circumferential surface of the tube 50 and sliding on the second mounting portion 13 while being coupled with the tube 50 and having second flange portions 53b protruding from the outer circumferential surface, A second forward / backward member 53,

A second knob 54 screwed to the second screw thread 53a while rotating in the second direction on the outer periphery of the second mounting portion 13,

(50) with a front end connected to one end of the electrode part (52), and a rear end connected to the connector (40), and the stop is connected to the second forward / A first metal wire 55 connected to one side second flange portion 53b of the member 53 and having a front end connected to the other end of the electrode portion 52 and a rear end connected to the connector 40 And a second metal wire 56 connected to the other second flange portion 53b of the second forward-backward member 53 so as to penetrate through the second flange portion 53b.

Specifically, the second forward-backward member 53 has a second flange portion 53b protruding from the front end side of the body portion having the second thread portion 53a so as to have a width larger than the diameter of the body portion, The flange portion 53b is mounted so as to linearly move back and forth in the second mounting portion 13 and the second knob 54 mounted to the second exposure hole 23a is fitted and screwed into the second screw thread 53a .

Each of the second flange portions 53b is provided with a through hole 53c formed in the forward and backward direction and a binding hole 53d formed in the direction orthogonal to the through hole 53c, The first metal wire 55 is engaged with the through hole 53c and the binding hole 53d and is bundled so that the first metal wire 55 at the time of forward and backward movement of the second forward- The second metal wire 56 is only engaged with the through hole 53c and is not engaged with the second flange portion 53b on the other side so that even if the second forward retracting member 53 moves back and forth, (Pulling or loosening) of the elastic member 56 does not occur.

The tube 50 has an intermediate portion 57 having an opening portion communicating with the insertion hole 51 so that a portion of the intermediate portion of the tube 50 extends from the inner surface of the front end of each of the insertion holes 57 to the front end portion of the tube 50 Connected wire insertion holes are formed so that the first and second metal wires 55 and 56 are embedded longitudinally so as to face each other on both side wall portions of the tube 50,

The front end portions (collectively referred to as connection portions 55a and 56a) of the first and second metal wires 55 and 56 are bent outward while being exposed at the front end of the wire insertion hole, And electrical connection is made with the electrode part 52 coupled to the outer surface by a method such as soldering.

Accordingly, when the second knob 54 is rotated in both directions, the rotational motion of the second knob 54 is switched to the forward and backward linear motion of the second forward-reverse member 53, The second metal wire 56 remains unchanged in length while only the first metal wire 55 is pulled while holding one end of the tube 50 and more precisely one end of the electrode portion 52 to the rear side The exposed portion of the tube 50 is bent while having a rounded shape in one direction and the starting point at which the tube 50 is bent is the front end portion of the guide 20. [

When the second forward-backward member 53 advances, the pulled first metal wire 55 is released and the pressure pulled by the tube 50 is released. At this time, due to the elastic restoring force of the tube 50 itself, (50) is horizontally expanded in the original longitudinal direction.

Accordingly, the distance (position) at which the tube 50 is bent is varied according to the adjustment of the exposure length of the tube 50 through the forward and backward movement of the guide 20, and at the same time, The angle at which the exposed portion of the tube 50 is bent can be freely changed according to the positional adjustment of the elastic member 53. [

The present invention provides a composite catheter having a single catheter that is individually manufactured for each use, such as in-vivo implantation of various medical instruments, drug injection, and high frequency generation, thereby reducing the manufacturing cost by simplifying the production line and simplifying the structure It is possible to quickly and accurately perform various treatment actions such as various procedures, surgery, drug injection, and high frequency treatment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, .

10: housing 11: hollow
12: first mounting portion 13: second mounting portion
14: third mounting part 15: first mounting call
16: second mounting hole
20: Guide 21: Insertion hole
22: first forward / backward member 23: first knob
30: inner body 31: closing hole
32: first input port 33: second input port
34: Third knob 35: Machine milling
40: connector 41: terminal portion
50: tube 51: insertion hole
52: electrode portion 53: second forward / backward member
54: second knob 55, 56: metal wire
GM: Guide pull-out means TB: Tube bending means
BP: means of preventing backflow of drugs

Claims (4)

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 penetratingly formed in the longitudinal direction and coupled to the first mounting portion such that a front end portion of the front end is exposed to the front end side of the housing;
A first input port for the medical device connected to the rear end of the input hole and a second input port for the voicide that is branched and connected to the other end of the input hole, the first input port and the second input port, An inner body mounted to the second mounting portion so as to be 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 flexible material having an elastic restoring force parallel to a longitudinal direction, comprising: an insertion hole formed in a longitudinal direction of the insertion hole; and an electrode portion electrically connected to the connector at a front end portion, the electrode portion being inserted into the insertion hole, A tube coupled to the insertion hole to be connected to the injection hole while being exposed to the side of the insertion hole;
Guide pull-out means provided in the first mounting portion for moving the guide back and forth; And
And tube bending means provided at the second mounting portion for bending the exposed portion of the tube in one direction with the front end of the guide as an axis,
Wherein the tube bending means comprises:
A second threaded member formed on an outer circumferential surface of the tubular member, the tubular member being slidably coupled to the second mounting unit through the tube, the tubular member having a flange portion protruding from an outer circumferential surface thereof,
A second knob which is bi-directionally rotated on an outer periphery of the second mounting portion and is screwed to the second screw thread,
Each of which is connected to the tube so as to be coupled to one flange portion of the second forwardly-facing member while the front end thereof is connected to one end of the electrode portion and the rear end thereof is connected to the connector, 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 such that the stop is connected to the other flange portion of the second forwardly retracting member A composite catheter characterized by.
The method according to claim 1,
The guide pull-
A first forward / backward member coupled to a rear end of the guide and slidably coupled to the first mounting portion and having a first thread formed on an outer circumferential surface,
And a first knob threadably coupled to the first threaded portion while rotating in a bi-directional direction on an outer periphery of the first mounting portion.
delete 3. The method according to claim 1 or 2,
A third knob which is screwed to the outer periphery of the first input port and is openable and closable,
And a deformation hole which is inserted into the first input port and into which the medical instrument is inserted so that the degree of compression of the deformation hole is changed according to the degree of locking of the third knob, ≪ / RTI > further comprising a means for preventing backflow of the drug.

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